cinelerra-5.1/cinelerra/trackcanvas.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2014 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "apatchgui.inc"
  23 #include "asset.h"
  24 #include "autoconf.h"
  25 #include "automation.h"
  26 #include "bcsignals.h"
  27 #include "bctimer.h"
  28 #include "clip.h"
  29 #include "bccolors.h"
  30 #include "cache.h"
  31 #include "canvas.h"
  32 #include "cplayback.h"
  33 #include "cursors.h"
  34 #include "cwindowgui.h"
  35 #include "cwindow.h"
  36 #include "edithandles.h"
  37 #include "editpopup.h"
  38 #include "edits.h"
  39 #include "edl.h"
  40 #include "edlsession.h"
  41 #include "floatauto.h"
  42 #include "floatautos.h"
  43 #include "gwindowgui.h"
  44 #include "indexstate.h"
  45 #include "intauto.h"
  46 #include "intautos.h"
  47 #include "keyframe.h"
  48 #include "keyframepopup.h"
  49 #include "keyframes.h"
  50 #include "keys.h"
  51 #include "labels.h"
  52 #include "localsession.h"
  53 #include "mainclock.h"
  54 #include "maincursor.h"
  55 #include "mainsession.h"
  56 #include "mainundo.h"
  57 #include "maskautos.h"
  58 #include "mbuttons.h"
  59 #include "mtimebar.h"
  60 #include "mwindowgui.h"
  61 #include "mwindow.h"
  62 #include "panautos.h"
  63 #include "patchbay.h"
  64 #include "playbackengine.h"
  65 #include "playtransport.h"
  66 #include "plugin.h"
  67 #include "pluginpopup.h"
  68 #include "pluginserver.h"
  69 #include "pluginset.h"
  70 #include "plugintoggles.h"
  71 #include "preferences.h"
  72 #include "renderengine.h"
  73 #include "resourcepixmap.h"
  74 #include "resourcethread.h"
  75 #include "swindow.h"
  76 #include "theme.h"
  77 #include "trackcanvas.h"
  78 #include "tracking.h"
  79 #include "trackpopup.h"
  80 #include "tracks.h"
  81 #include "transition.h"
  82 #include "transitionhandles.h"
  83 #include "transitionpopup.h"
  84 #include "transportque.h"
  85 #include "vframe.h"
  86 #include "vpatchgui.inc"
  87 #include "vrender.h"
  88 #include "zoombar.h"
  89
  90 #include <string.h>
  91
  92 //#define PIXMAP_AGE -5
  93 #define PIXMAP_AGE -32
  94
  95 TrackCanvas::TrackCanvas(MWindow *mwindow,
  96         TimelinePane *pane,
  97         int x,
  98         int y,
  99         int w,
 100         int h)
 101  : BC_SubWindow(x,
 102         y,
 103         w,
 104         h)
 105 {
 106         this->mwindow = mwindow;
 107         this->gui = mwindow->gui;
 108         this->pane = pane;
 109
 110         selection_midpoint = 0;
 111         drag_scroll = 0;
 112         active = 0;
 113         temp_picon = 0;
 114         resource_timer = new Timer;
 115         render_timer = new Timer;
 116         hourglass_enabled = 0;
 117         timebar_position = -1;
 118         snapped = 0;
 119 }
 120
 121 TrackCanvas::~TrackCanvas()
 122 {
 123 //      delete transition_handles;
 124         delete edit_handles;
 125         delete keyframe_pixmap;
 126         delete camerakeyframe_pixmap;
 127         delete modekeyframe_pixmap;
 128         delete pankeyframe_pixmap;
 129         delete projectorkeyframe_pixmap;
 130         delete maskkeyframe_pixmap;
 131         delete background_pixmap;
 132         if(temp_picon) delete temp_picon;
 133         delete render_timer;
 134         delete resource_timer;
 135 }
 136
 137 void TrackCanvas::create_objects()
 138 {
 139         background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 140 //      transition_handles = new TransitionHandles(mwindow, this);
 141         edit_handles = new EditHandles(mwindow, this);
 142         keyframe_pixmap = new BC_Pixmap(this, mwindow->theme->keyframe_data, PIXMAP_ALPHA);
 143         camerakeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->camerakeyframe_data, PIXMAP_ALPHA);
 144         modekeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->modekeyframe_data, PIXMAP_ALPHA);
 145         pankeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->pankeyframe_data, PIXMAP_ALPHA);
 146         projectorkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->projectorkeyframe_data, PIXMAP_ALPHA);
 147         maskkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->maskkeyframe_data, PIXMAP_ALPHA);
 148         draw(NORMAL_DRAW, 1);
 149         update_cursor(0);
 150         flash(0);
 151 }
 152
 153 void TrackCanvas::resize_event()
 154 {
 155 //printf("TrackCanvas::resize_event 1\n");
 156         draw(NORMAL_DRAW, 0);
 157         flash(0);
 158 //printf("TrackCanvas::resize_event 2\n");
 159 }
 160
 161 int TrackCanvas::keypress_event()
 162 {
 163         return 0;
 164 }
 165
 166 int TrackCanvas::cursor_leave_event()
 167 {
 168 // Because drag motion calls get_cursor_over_window we can be sure that
 169 // all highlights get deleted now.
 170 // This ended up blocking keyboard input from the drag operations.
 171         if( timebar_position >= 0 )
 172         {
 173                 timebar_position = -1;
 174                 if( pane->timebar )
 175                         pane->timebar->update(1);
 176         }
 177
 178         return 0;
 179 //      return drag_motion();
 180 }
 181
 182 int TrackCanvas::drag_motion_event()
 183 {
 184         return gui->drag_motion();
 185 }
 186
 187 int TrackCanvas::drag_motion(
 188                 Track **over_track, Edit **over_edit,
 189                 PluginSet **over_pluginset, Plugin **over_plugin)
 190 {
 191         int cursor_x = get_relative_cursor_x();
 192         int cursor_y = get_relative_cursor_y();
 193         if( get_cursor_over_window() ) {
 194                 drag_cursor_motion(cursor_x, cursor_y,
 195                         over_track, over_edit, over_pluginset, over_plugin);
 196         }
 197         if( over_track && !*over_track )
 198                 *over_track = pane->over_patchbay();
 199         return 0;
 200 }
 201
 202 int TrackCanvas::drag_cursor_motion(int cursor_x, int cursor_y,
 203                 Track **over_track, Edit **over_edit,
 204                 PluginSet **over_pluginset, Plugin **over_plugin)
 205 {
 206         if( cursor_x >= 0 && cursor_y >= 0 &&
 207             cursor_x < get_w() && cursor_y < get_h() )
 208         {
 209 //printf("TrackCanvas::drag_motion %d %d\n", __LINE__, pane->number);
 210 // Find the edit and track the cursor is over
 211                 for(Track *track = mwindow->edl->tracks->first; track; track = track->next)
 212                 {
 213                         if( track->is_hidden() ) continue;
 214                         int64_t track_x, track_y, track_w, track_h;
 215                         track_dimensions(track, track_x, track_y, track_w, track_h);
 216
 217                         if(cursor_y >= track_y &&
 218                                 cursor_y < track_y + track_h)
 219                         {
 220                                 *over_track = track;
 221                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
 222                                 {
 223                                         int64_t edit_x, edit_y, edit_w, edit_h;
 224                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 225                                         if( cursor_y < edit_y || cursor_y >= edit_y + edit_h ) continue;
 226                                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w ) {
 227                                                 *over_edit = edit;
 228                                                 break;
 229                                         }
 230                                         if( edit != track->edits->last ) continue;
 231                                         if( mwindow->session->current_operation != DRAG_ATRANSITION &&
 232                                             mwindow->session->current_operation != DRAG_VTRANSITION ) continue;
 233                                         if( !edit->silence() ) {
 234                                                 // add silence to allow drag transition past last edit
 235                                                 //  will be deleted by Edits::optimize if not used
 236                                                 double length = mwindow->edl->session->default_transition_length;
 237                                                 int64_t start = edit->startproject+edit->length;
 238                                                 int64_t units = track->to_units(length, 1);
 239                                                 track->edits->create_silence(start, start+units);
 240                                                 continue;
 241                                         }
 242                                         if( cursor_x >= edit_x ) { *over_edit = edit; break; }
 243                                 }
 244
 245                                 for(int i = 0; i < track->plugin_set.total; i++)
 246                                 {
 247                                         PluginSet *pluginset = track->plugin_set.values[i];
 248                                         for(Plugin *plugin = (Plugin*)pluginset->first;
 249                                                 plugin;
 250                                                 plugin = (Plugin*)plugin->next)
 251                                         {
 252                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
 253                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
 254
 255                                                 if(cursor_y >= plugin_y &&
 256                                                         cursor_y < plugin_y + plugin_h)
 257                                                 {
 258                                                         *over_pluginset = plugin->plugin_set;
 259
 260                                                         if(cursor_x >= plugin_x &&
 261                                                                 cursor_x < plugin_x + plugin_w)
 262                                                         {
 263                                                                 *over_plugin = plugin;
 264                                                                 break;
 265                                                         }
 266                                                 }
 267                                         }
 268                                 }
 269                                 break;
 270                         }
 271                 }
 272         }
 273
 274         return 0;
 275 }
 276
 277
 278 int TrackCanvas::drag_stop_event()
 279 {
 280         int result = gui->drag_stop();
 281         if( !result && mwindow->session->current_operation ) {
 282                 mwindow->session->current_operation = NO_OPERATION;
 283                 drag_scroll = 0;
 284         }
 285         return result;
 286 }
 287
 288 int TrackCanvas::drag_stop(int *redraw)
 289 {
 290         int result = 0;
 291         int insertion  = 0;
 292         int over_window = 0;
 293         int cursor_x = -1, cursor_y = -1;
 294
 295         if( get_cursor_over_window() ) {
 296                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
 297                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
 298                         over_window = 1;
 299                 else {
 300                         Track *track = pane->over_patchbay();
 301                         if( track && mwindow->session->track_highlighted == track )
 302                                 over_window = 1;
 303                 }
 304         }
 305
 306         if( over_window ) {
 307                 switch(mwindow->session->current_operation) {
 308                 case DRAG_VTRANSITION:
 309                 case DRAG_ATRANSITION:
 310                         if(mwindow->session->edit_highlighted) {
 311                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
 312                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 313                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
 314                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
 315                                         mwindow->session->current_operation = NO_OPERATION;
 316                                         mwindow->paste_transition();
 317                                         result = 1;
 318                                 }
 319                         }
 320                         *redraw = 1;
 321                         break;
 322
 323 // Behavior for dragged plugins is limited by the fact that a shared plugin
 324 // can only refer to a standalone plugin that exists in the same position in
 325 // time.  Dragging a plugin from one point in time to another can't produce
 326 // a shared plugin to the original plugin.  In this case we relocate the
 327 // plugin instead of sharing it.
 328                 case DRAG_AEFFECT_COPY:
 329                 case DRAG_VEFFECT_COPY:
 330                         if( mwindow->session->track_highlighted &&
 331                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
 332                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 333                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
 334                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 335                                 mwindow->session->current_operation = NO_OPERATION;
 336
 337                                 int64_t drop_position = -1;
 338                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
 339                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
 340                                 Track *hi_track = mwindow->session->track_highlighted;
 341
 342 // Insert shared plugin in source
 343 // Move source to different location
 344                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
 345 //printf("TrackCanvas::drag_stop 6\n");
 346                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
 347                                         if( drop_position < 0 ) {
 348                                                 result = 1;
 349                                                 break;          // Do not do anything
 350                                         }
 351
 352                                         Track *track = mwindow->session->track_highlighted;
 353                                         drop_position = track->frame_align(drop_position, 0);
 354                                         mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
 355                                         result = 1;
 356                                 }
 357                                 else if( hi_track ) {
 358 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
 359                                         Edit *hi_edit = mwindow->session->edit_highlighted;
 360                                         drop_position = hi_edit ? hi_edit->startproject : 0;
 361                                         if( drop_position < 0 ) {
 362                                                 result = 1;
 363                                                 break;          // Do not do anything
 364                                         }
 365
 366                                         Track *track = mwindow->session->track_highlighted;
 367                                         drop_position = track->frame_align(drop_position, 0);
 368                                         mwindow->move_effect(drag_plugin, hi_track, drop_position);
 369                                         result = 1;
 370                                 }
 371                         }
 372                         break;
 373
 374                 case DRAG_AEFFECT:
 375                 case DRAG_VEFFECT:
 376                         if( mwindow->session->track_highlighted &&
 377                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
 378                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 379                              (mwindow->session->current_operation == DRAG_VEFFECT &&
 380                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 381 // Drop all the effects
 382                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
 383                                 Track *track = mwindow->session->track_highlighted;
 384                                 double start = 0;
 385                                 double length = track->get_length();
 386
 387                                 if(mwindow->session->plugin_highlighted) {
 388                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
 389                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
 390                                         if(length <= 0) length = track->get_length();
 391                                 }
 392                                 else if(mwindow->session->pluginset_highlighted) {
 393                                                 start = track->from_units(plugin_set->length());
 394                                         length = track->get_length() - start;
 395                                         if(length <= 0) length = track->get_length();
 396                                 }
 397                                 else if(mwindow->edl->local_session->get_selectionend() >
 398                                         mwindow->edl->local_session->get_selectionstart()) {
 399                                         start = mwindow->edl->local_session->get_selectionstart();
 400                                         length = mwindow->edl->local_session->get_selectionend() -
 401                                                 mwindow->edl->local_session->get_selectionstart();
 402                                 }
 403 // Move to a point between two edits
 404                                 else if(mwindow->session->edit_highlighted) {
 405                                         start = mwindow->session->track_highlighted->from_units(
 406                                                 mwindow->session->edit_highlighted->startproject);
 407                                         length = mwindow->session->track_highlighted->from_units(
 408                                                 mwindow->session->edit_highlighted->length);
 409                                 }
 410                                 start = mwindow->edl->align_to_frame(start, 0);
 411                                 mwindow->insert_effects_canvas(track, start, length);
 412                                 *redraw = 1;
 413                         }
 414                         if( mwindow->session->track_highlighted )
 415                                 result = 1;  // we have to cleanup
 416                         break;
 417
 418                 case DRAG_ASSET:
 419                         if(mwindow->session->track_highlighted) {
 420                                 double asset_duration = 0;
 421                                 int64_t asset_length_units = 0;
 422
 423                                 if(mwindow->session->current_operation == DRAG_ASSET &&
 424                                         mwindow->session->drag_assets->total) {
 425                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
 426                                         // we use video if we are over video and audio if we are over audio
 427                                         if( indexable->have_video() &&
 428                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
 429                                                 // Images have length -1
 430                                                 int64_t video_length = indexable->get_video_frames();
 431                                                 if (video_length < 0) {
 432                                                         if(mwindow->edl->session->si_useduration)
 433                                                                 video_length = mwindow->edl->session->si_duration;
 434                                                         else
 435                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ;
 436                                                 }
 437                                                 asset_duration = video_length / indexable->get_frame_rate();
 438                                         }
 439                                         else if( indexable->have_audio() &&
 440                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
 441                                                 int64_t audio_length = indexable->get_audio_samples();
 442                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
 443                                         }
 444                                         else {
 445                                                 result = 1;
 446                                                 break;  // Do not do anything
 447                                         }
 448                                 }
 449                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
 450                                          mwindow->session->drag_clips->total ) {
 451                                         EDL *clip = mwindow->session->drag_clips->values[0];
 452                                         asset_duration = clip->tracks->total_length();
 453                                 }
 454                                 else {
 455                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
 456                                 }
 457
 458                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
 459                                 int64_t drop_position = drop_edit_position (&insertion, NULL, asset_length_units);
 460                                 if( drop_position < 0 ) {
 461                                         result = 1;
 462                                         break;          // Do not do anything
 463                                 }
 464
 465                                 Track *track = mwindow->session->track_highlighted;
 466                                 double track_position = track->from_units(drop_position);
 467                                 track_position = mwindow->edl->align_to_frame(track_position, 0);
 468
 469 //                              if (!insertion) {
 470 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
 471 //                                      // Unfortunately, this is _a lot_ of work to do right
 472 //                                      printf("Problematic insertion\n");
 473 //                                      mwindow->edl->tracks->clear(track_position,
 474 //                                              track_position + asset_duration, 0);
 475 //                              }
 476                                 mwindow->paste_assets(track_position, track, !insertion);
 477                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
 478                         }
 479                         break;
 480
 481                 case DRAG_EDIT:
 482                         mwindow->session->current_operation = NO_OPERATION;
 483                         if(mwindow->session->track_highlighted) {
 484                                 if( mwindow->session->track_highlighted->data_type ==
 485                                         mwindow->session->drag_edit->track->data_type) {
 486                                         int64_t drop_position = drop_edit_position(&insertion,
 487                                                         mwindow->session->drag_edit,
 488                                                         mwindow->session->drag_edit->length);
 489                                         if( drop_position < 0 ) {
 490                                                 result = 1;
 491                                                 break;          // Do not do anything
 492                                         }
 493                                         Track *track = mwindow->session->track_highlighted;
 494                                         double track_position = track->from_units(drop_position);
 495                                         track_position = mwindow->edl->align_to_frame(track_position, 0);
 496                                         mwindow->move_edits(mwindow->session->drag_edits,
 497                                                         track, track_position, insertion);
 498                                 }
 499
 500                                 result = 1;
 501                         }
 502                         break;
 503                 case DRAG_GROUP:
 504                         mwindow->session->current_operation = NO_OPERATION;
 505                         EDL *drag_group = mwindow->session->drag_group;
 506                         if( drag_group ) {
 507                                 Track *drop_track = mwindow->session->track_highlighted;
 508                                 Track *drag_track = mwindow->session->drag_group_first_track;
 509                                 Edit *drag_edit = mwindow->session->drag_group_edit;
 510                                 Track *edit_track = drag_edit ? drag_edit->track : 0;
 511                                 while( drop_track && edit_track ) {
 512                                         if( edit_track == drag_track ) break;
 513                                         edit_track = edit_track->previous;
 514                                         drop_track = drop_track->previous;
 515                                 }
 516                                 if( drop_track ) {
 517                                         double cur_pos = mwindow->session->drag_group_position;
 518                                         double new_pos = mwindow->edl->get_cursor_position(cursor_x, pane->number);
 519                                         new_pos -= mwindow->session->drag_position - cur_pos;
 520                                         new_pos = mwindow->edl->align_to_frame(new_pos, 0);
 521                                         double drop_position = new_pos;
 522                                         int ret = test_track_group(drag_group, drop_track, new_pos);
 523                                         if( !ret && new_pos != drop_position ) {
 524                                                 drop_position = new_pos;
 525                                                 ret = test_track_group(drag_group, drop_track, new_pos);
 526                                         }
 527                                         if( ret >= 0 )
 528                                                 mwindow->move_group(drag_group, drop_track, drop_position,
 529                                                         ret > 0 ? !shift_down() : shift_down());
 530                                         drag_group->remove_user();
 531                                         mwindow->session->drag_group = 0;
 532                                 }
 533                         }
 534                         result = 1;
 535                         break;
 536                 }
 537         }
 538
 539         return result;
 540 }
 541
 542 int TrackCanvas::drag_start_event()
 543 {
 544         int result = 0;
 545         int redraw = 0;
 546         int rerender = 0;
 547         int new_cursor, update_cursor;
 548
 549         if( mwindow->session->current_operation == GROUP_TOGGLE )
 550                 mwindow->session->current_operation = NO_OPERATION;
 551         else if( mwindow->session->current_operation != NO_OPERATION )
 552                 return 0;
 553
 554         if(is_event_win()) {
 555                 if(do_plugins(get_drag_x(), get_drag_y(),
 556                                 1, 0, redraw, rerender)) {
 557                         result = 1;
 558                 }
 559                 else if(do_edits(get_drag_x(), get_drag_y(),
 560                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
 561                         result = 1;
 562                 }
 563         }
 564
 565         return result;
 566 }
 567
 568 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
 569 {
 570         // get the canvas/track position
 571         Track *track = mwindow->session->track_highlighted;
 572         int cursor_x = get_relative_cursor_x();
 573         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 574         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 575         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 576         if( position <= 0 ) {
 577                 *is_insertion = 1;
 578                 return 0;
 579         }
 580         double cursor_position = position;
 581         int64_t drop_position = track->to_units(cursor_position, 1);
 582         if( moved_edit ) { // relative cursor position depends upon drop point
 583                 double moved_edit_start = moved_edit->track->from_units(moved_edit->startproject);
 584                 position -= mwindow->session->drag_position - moved_edit_start;
 585         }
 586         int64_t edit_position = track->to_units(position, 1);
 587         int64_t grab_position = edit_position;
 588         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
 589                 grab_position -= moved_edit_length / 2;
 590         Edit *last_edit = track->edits->last;
 591         if( !last_edit || edit_position >= (last_edit->startproject+last_edit->length) ) {
 592                 *is_insertion = 0;
 593                 return edit_position;
 594         }
 595
 596         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 597         Edit *next_edit = track->edits->first;
 598         while( next_edit ) {
 599                 Edit *edit = next_edit;  next_edit = (Edit *)edit->next;
 600                 int64_t edit_start = edit->startproject;
 601                 int64_t edit_end = edit_start + edit->length;
 602                 double edit_start_pos = edit->track->from_units(edit_start);
 603                 if( (fabs(edit_start_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 604                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
 605                         return edit_start;
 606                 }
 607                 double edit_end_pos = edit->track->from_units(edit_end);
 608                 if( (fabs(edit_end_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 609                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
 610                         return edit_end;
 611                 }
 612                 if( edit != moved_edit && !edit->silence() )
 613                         drop_start = edit_end; // reset drop zone
 614                 if( next_edit ) {
 615                         if( next_edit == moved_edit || next_edit->silence() ) continue;
 616                         drop_end = edit_end;
 617                 }
 618                 else
 619                         drop_end = INT64_MAX;
 620                 if( edit_position >= drop_start &&
 621                     edit_position+moved_edit_length < drop_end ) {
 622                         *is_insertion = 0; // fits in the zone
 623                         return edit_position;
 624                 }
 625                 if( drop_position < drop_end ) { // drop in the zone
 626                         if( (drop_end - drop_start) >= moved_edit_length ) {
 627                                 *is_insertion = 0; // fits in the zone, but over the edge
 628                                 int64_t dx0 = llabs(drop_position - drop_start);
 629                                 int64_t dx1 = llabs(drop_position - drop_end);
 630                                 return dx0 < dx1 ? drop_start : drop_end - moved_edit_length;
 631                         }
 632                         *is_insertion = 1;
 633                         int64_t edit_center = (edit_start + edit_end) / 2;
 634                         return position < edit_center ? drop_start : drop_end;
 635                 }
 636         }
 637
 638         *is_insertion = 0;
 639         return -1;
 640 }
 641
 642 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
 643 {
 644         // get the canvas/track position
 645         Track *track = plugin_set->track;
 646         double moved_plugin_length = moved_plugin->track->from_units(moved_plugin->length);
 647         int64_t track_plugin_length = track->to_units(moved_plugin_length, 0);
 648         int cursor_x = get_relative_cursor_x();
 649         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 650         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 651         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 652         if( position <= 0 ) return 0;
 653         int64_t drop_position = track->to_units(position, 1);
 654         Plugin *last_plugin = (Plugin *)plugin_set->last;
 655         if( !last_plugin ) return drop_position;
 656         double plugin_set_end = last_plugin->track->from_units(last_plugin->startproject+last_plugin->length);
 657         if( position >= plugin_set_end ) return drop_position;
 658         double moved_plugin_start = moved_plugin->track->from_units(moved_plugin->startproject);
 659         position -= mwindow->session->drag_position - moved_plugin_start;
 660         int64_t plugin_position = track->to_units(position, 1);
 661
 662         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 663         Plugin *next_plugin = (Plugin *)plugin_set->first;
 664         while( next_plugin ) {
 665                 Plugin *plugin = next_plugin;  next_plugin = (Plugin *)plugin->next;
 666                 int64_t plugin_start = plugin->startproject;
 667                 int64_t plugin_end = plugin_start + plugin->length;
 668                 double plugin_end_pos = plugin->track->from_units(plugin_end);
 669                 int64_t track_plugin_end = track->to_units(plugin_end_pos, 0);
 670                 if( plugin != moved_plugin && !plugin->silence() )
 671                         drop_start = track_plugin_end;
 672                 if( next_plugin ) {
 673                         if( next_plugin == moved_plugin || next_plugin->silence() ) continue;
 674                         drop_end = track_plugin_end;
 675                 }
 676                 else
 677                         drop_end = INT64_MAX;
 678                 if( plugin_position >= drop_start && // fits in the zone
 679                     plugin_position+track_plugin_length < drop_end ) {
 680                         return plugin_position;
 681                 }
 682                 if( drop_position < drop_end ) { // drop in the zone
 683                         if( (drop_end - drop_start) >= track_plugin_length ) {
 684                                 int64_t dx0 = llabs(drop_position - drop_start);
 685                                 int64_t dx1 = llabs(drop_position - drop_end);
 686                                 return dx0 < dx1 ? drop_start : drop_end - track_plugin_length;
 687                         }
 688                 }
 689         }
 690
 691         return -1;
 692 }
 693
 694 void TrackCanvas::draw(int mode, int hide_cursor)
 695 {
 696         const int debug = 0;
 697
 698 // Swap pixmap layers
 699         if(get_w() != background_pixmap->get_w() ||
 700                 get_h() != background_pixmap->get_h())
 701         {
 702                 delete background_pixmap;
 703                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 704         }
 705
 706 // Cursor disappears after resize when this is called.
 707 // Cursor doesn't redraw after editing when this isn't called.
 708         if(pane->cursor && hide_cursor) pane->cursor->hide();
 709         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
 710
 711         if(debug) PRINT_TRACE
 712         draw_resources(mode);
 713
 714         if(debug) PRINT_TRACE
 715         draw_overlays();
 716         if(debug) PRINT_TRACE
 717 }
 718
 719 void TrackCanvas::update_cursor(int flush)
 720 {
 721         if( arrow_mode() )
 722                 set_cursor(ARROW_CURSOR, 0, flush);
 723         else if( ibeam_mode() )
 724                 set_cursor(IBEAM_CURSOR, 0, flush);
 725 }
 726
 727
 728 void TrackCanvas::test_timer()
 729 {
 730         if( resource_timer->get_difference() > 1000 && !hourglass_enabled ) {
 731                 start_hourglass();
 732                 hourglass_enabled = 1;
 733         }
 734 }
 735
 736
 737 void TrackCanvas::draw_indexes(Indexable *indexable)
 738 {
 739         IndexState *index_state = indexable->index_state;
 740 // Don't redraw raw samples
 741         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
 742                 return;
 743         draw_resources(NORMAL_DRAW, 1, indexable);
 744         draw_overlays();
 745         flash(0);
 746 }
 747
 748 void TrackCanvas::draw_resources(int mode,
 749         int indexes_only,
 750         Indexable *indexable)
 751 {
 752         const int debug = 0;
 753
 754         if(debug) PRINT_TRACE
 755
 756 // can't stop thread here, because this is called for every pane
 757 //      if(mode != IGNORE_THREAD && !indexes_only)
 758 //              gui->resource_thread->stop_draw(!indexes_only);
 759
 760         if(mode != IGNORE_THREAD &&
 761                 !indexes_only &&
 762                 !gui->resource_thread->interrupted)
 763         {
 764                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
 765                         __LINE__);
 766
 767                 BC_Signals::dump_stack();
 768         }
 769
 770         if(debug) PRINT_TRACE
 771
 772         resource_timer->update();
 773
 774 // Age resource pixmaps for deletion
 775         if(!indexes_only)
 776                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 777                         gui->resource_pixmaps.values[i]->visible--;
 778
 779         if(mode == FORCE_REDRAW)
 780                 gui->resource_pixmaps.remove_all_objects();
 781
 782         if(debug) PRINT_TRACE
 783         if(mode != IGNORE_THREAD)
 784                 gui->resource_thread->reset(pane->number, indexes_only);
 785
 786 // Search every edit
 787         for(Track *current = mwindow->edl->tracks->first;
 788                 current;
 789                 current = NEXT)
 790         {
 791                 if( current->is_hidden() ) continue;
 792                 if(debug) PRINT_TRACE
 793                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
 794                 {
 795                         if(debug) PRINT_TRACE
 796                         if( current->data_type != TRACK_SUBTITLE )
 797                                 if(!edit->asset && !edit->nested_edl) continue;
 798                         if(indexes_only)
 799                         {
 800                                 if(edit->track->data_type != TRACK_AUDIO) continue;
 801
 802                                 if(edit->nested_edl &&
 803                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
 804
 805                                 if(edit->asset &&
 806                                         strcmp(indexable->path, edit->asset->path)) continue;
 807                         }
 808
 809                         if(debug) PRINT_TRACE
 810
 811                         int64_t edit_x, edit_y, edit_w, edit_h;
 812                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 813
 814 // Edit is visible
 815                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
 816                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
 817                         {
 818                                 int64_t pixmap_x, pixmap_w, pixmap_h;
 819                                 if(debug) PRINT_TRACE
 820
 821 // Search for existing pixmap containing edit
 822                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 823                                 {
 824                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
 825 // Same pointer can be different edit if editing took place
 826                                         if(pixmap->edit_id == edit->id &&
 827                                                 pixmap->pane_number == pane->number)
 828                                         {
 829                                                 pixmap->visible = 1;
 830                                                 break;
 831                                         }
 832                                 }
 833                                 if(debug) PRINT_TRACE
 834
 835 // Get new size, offset of pixmap needed
 836                                 get_pixmap_size(edit,
 837                                         edit_x,
 838                                         edit_w,
 839                                         pixmap_x,
 840                                         pixmap_w,
 841                                         pixmap_h);
 842                                 if(debug) PRINT_TRACE
 843
 844 // Draw new data
 845                                 if(pixmap_w && pixmap_h)
 846                                 {
 847 // Create pixmap if it doesn't exist
 848                                         ResourcePixmap* pixmap = create_pixmap(edit, edit_x,
 849                                                 pixmap_x, pixmap_w, pixmap_h);
 850 // Resize it if it's bigger
 851                                         if( pixmap_w > pixmap->pixmap_w ||
 852                                             pixmap_h > pixmap->pixmap_h)
 853                                                 pixmap->resize(pixmap_w, pixmap_h);
 854                                         pixmap->update_settings(edit, edit_x, edit_w,
 855                                                 pixmap_x, pixmap_w, pixmap_h);
 856 // Draw data
 857                                         if( current->show_assets() )
 858                                                 pixmap->draw_data(this,
 859                                                         edit, edit_x, edit_w,
 860                                                         pixmap_x, pixmap_w, pixmap_h,
 861                                                         mode, indexes_only);
 862                                         else {
 863                                                 set_bg_color(BLACK);
 864                                                 clear_box(0,0, pixmap_w,pixmap_h, pixmap);
 865                                         }
 866 // Draw title
 867                                         if( current->show_titles() )
 868                                                 pixmap->draw_title(this,
 869                                                         edit, edit_x, edit_w,
 870                                                         pixmap_x, pixmap_w);
 871 // Resize it if it's smaller
 872                                         if(pixmap_w < pixmap->pixmap_w ||
 873                                                 pixmap_h < pixmap->pixmap_h)
 874                                                 pixmap->resize(pixmap_w, pixmap_h);
 875
 876 // Copy pixmap to background canvas
 877                                         background_pixmap->draw_pixmap(pixmap,
 878                                                 pixmap->pixmap_x,
 879                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
 880                                                 pixmap->pixmap_w,
 881                                                 edit_h);
 882                                 }
 883                                 if(debug) PRINT_TRACE
 884
 885                         }
 886                 }
 887                 int64_t track_x, track_y, track_w, track_h;
 888                 track_dimensions(current,
 889                         track_x, track_y, track_w, track_h);
 890                 set_color((~get_resources()->get_bg_color()) & 0xffffff);
 891                 set_opaque();
 892                 int x1 = track_x, x2 = x1+track_w;
 893                 int y1 = track_y+track_h-1;
 894                 draw_line(x1,y1, x2,y1, background_pixmap);
 895         }
 896
 897
 898 // Delete unused pixmaps
 899         if(debug) PRINT_TRACE
 900         if(!indexes_only)
 901                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 902                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 903                         {
 904 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 905                                 delete gui->resource_pixmaps.values[i];
 906                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 907                         }
 908         if(debug) PRINT_TRACE
 909
 910         if(hourglass_enabled)
 911         {
 912                 stop_hourglass();
 913                 hourglass_enabled = 0;
 914         }
 915         if(debug) PRINT_TRACE
 916
 917 // can't stop thread here, because this is called for every pane
 918 //      if(mode != IGNORE_THREAD && !indexes_only)
 919 //              gui->resource_thread->start_draw();
 920         if(debug) PRINT_TRACE
 921
 922
 923 }
 924
 925 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 926         int64_t edit_x,
 927         int64_t pixmap_x,
 928         int64_t pixmap_w,
 929         int64_t pixmap_h)
 930 {
 931         ResourcePixmap *result = 0;
 932
 933         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 934         {
 935 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 936                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 937                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 938                 {
 939                         result = gui->resource_pixmaps.values[i];
 940                         break;
 941                 }
 942         }
 943
 944         if(!result)
 945         {
 946 //SET_TRACE
 947                 result = new ResourcePixmap(mwindow,
 948                         gui,
 949                         edit,
 950                         pane->number,
 951                         pixmap_w,
 952                         pixmap_h);
 953 //SET_TRACE
 954                 gui->resource_pixmaps.append(result);
 955         }
 956
 957 //      result->resize(pixmap_w, pixmap_h);
 958         return result;
 959 }
 960
 961 void TrackCanvas::get_pixmap_size(Edit *edit,
 962         int64_t edit_x,
 963         int64_t edit_w,
 964         int64_t &pixmap_x,
 965         int64_t &pixmap_w,
 966         int64_t &pixmap_h)
 967 {
 968
 969 // Align x on frame boundaries
 970
 971
 972 //      switch(edit->edits->track->data_type)
 973 //      {
 974 //              case TRACK_AUDIO:
 975
 976                         pixmap_x = edit_x;
 977                         pixmap_w = edit_w;
 978                         if(pixmap_x < 0)
 979                         {
 980                                 pixmap_w -= -edit_x;
 981                                 pixmap_x = 0;
 982                         }
 983
 984                         if(pixmap_x + pixmap_w > get_w())
 985                         {
 986                                 pixmap_w = get_w() - pixmap_x;
 987                         }
 988
 989 //                      break;
 990 //
 991 //              case TRACK_VIDEO:
 992 //              {
 993 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 994 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 995 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 996 //                      int64_t pixmap_x1 = edit_x;
 997 //                      int64_t pixmap_x2 = edit_x + edit_w;
 998 //
 999 //                      if(pixmap_x1 < 0)
1000 //                      {
1001 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
1002 //                                      pixel_increment +
1003 //                                      edit_x;
1004 //                      }
1005 //
1006 //                      if(pixmap_x2 > get_w())
1007 //                      {
1008 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
1009 //                                      pixel_increment +
1010 //                                      edit_x;
1011 //                      }
1012 //                      pixmap_x = pixmap_x1;
1013 //                      pixmap_w = pixmap_x2 - pixmap_x1;
1014 //                      break;
1015 //              }
1016 //      }
1017
1018         Track *track = edit->edits->track;
1019         pixmap_h = track->data_h;
1020         if( track->show_titles() )
1021                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
1022 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
1023 }
1024
1025 void TrackCanvas::edit_dimensions(Edit *edit,
1026         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1027 {
1028         x = Units::round(edit->track->from_units(edit->startproject) *
1029                         mwindow->edl->session->sample_rate /
1030                         mwindow->edl->local_session->zoom_sample -
1031                         mwindow->edl->local_session->view_start[pane->number]);
1032
1033         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1034
1035 // Method for calculating w so when edits are together we never get off by one error due to rounding
1036         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
1037                         mwindow->edl->session->sample_rate /
1038                         mwindow->edl->local_session->zoom_sample -
1039                         mwindow->edl->local_session->view_start[pane->number]);
1040         w = x_next - x;
1041
1042         int edit_h = 0;
1043         if( edit->track->show_titles() )
1044                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
1045         if( edit->track->show_assets() )
1046                 edit_h += edit->track->data_h;
1047         h = edit_h;
1048 }
1049
1050 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1051 {
1052         x = 0;
1053         w = get_w();
1054         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1055         h = track->vertical_span(mwindow->theme);
1056 }
1057
1058
1059 void TrackCanvas::draw_paste_destination()
1060 {
1061         //int cursor_x = get_relative_cursor_x();
1062         //int cursor_y = get_relative_cursor_y();
1063         int current_atrack = 0;
1064         int current_vtrack = 0;
1065         int current_aedit = 0;
1066         int current_vedit = 0;
1067         int64_t w = 0;
1068         int64_t x;
1069         double position;
1070         int insertion  = 0;
1071
1072 //if(pane->number == BOTTOM_RIGHT_PANE)
1073 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1074
1075         if((mwindow->session->current_operation == DRAG_ASSET &&
1076                         (mwindow->session->drag_assets->total ||
1077                         mwindow->session->drag_clips->total)) ||
1078                 (mwindow->session->current_operation == DRAG_EDIT &&
1079                         mwindow->session->drag_edits->total)) {
1080                 Indexable *indexable = 0;
1081                 EDL *clip = 0;
1082                 //int draw_box = 0;
1083
1084                 if(mwindow->session->current_operation == DRAG_ASSET &&
1085                         mwindow->session->drag_assets->size())
1086                         indexable = mwindow->session->drag_assets->get(0);
1087
1088                 if(mwindow->session->current_operation == DRAG_ASSET &&
1089                         mwindow->session->drag_clips->size())
1090                         clip = mwindow->session->drag_clips->get(0);
1091
1092                 int has_audio = 0, has_video = 0;
1093                 double paste_audio_length = 0, paste_video_length = 0;
1094                 double paste_audio_position = -1, paste_video_position = -1;
1095
1096                 if( indexable ) {
1097                         has_audio = indexable->have_audio();
1098                         paste_audio_length = !has_audio ? 0 :
1099                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1100                         has_video = indexable->have_video();
1101                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1102                         // Images have length -1
1103                         if( asset && asset->video_data && asset->video_length < 0 ) {
1104                                 paste_video_length = mwindow->edl->session->si_useduration ?
1105                                         mwindow->edl->session->si_duration / asset->frame_rate :
1106                                         1.0 / asset->frame_rate ;  // 1 frame
1107                         }
1108                         else
1109                                 paste_video_length = !has_video ? 0 :
1110                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1111                 }
1112
1113                 if( clip ) {
1114                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1115                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1116                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1117                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1118                 }
1119
1120 // 'Align cursor on frame' lengths calculations
1121                 if( mwindow->edl->session->cursor_on_frames ) {
1122                         double fps = mwindow->edl->session->frame_rate;
1123                         double aud = floor(paste_audio_length * fps) / fps;
1124                         double vid = floor(paste_video_length * fps) / fps;
1125                         double length = has_video && has_audio ?
1126                                         aud < vid ? aud : vid :
1127                                 has_video ? vid :
1128                                 has_audio ? aud : 0;
1129                         paste_video_length = paste_audio_length = length;
1130                 }
1131
1132                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1133                         int64_t length = 0;
1134                         switch( mwindow->session->track_highlighted->data_type ) {
1135                         case TRACK_VIDEO: length = paste_video_length;  break;
1136                         case TRACK_AUDIO: length = paste_audio_length;  break;
1137                         }
1138                         int64_t asset_length = mwindow->session->track_highlighted->
1139                                 to_units(length, 1);
1140                         paste_audio_position = mwindow->session->track_highlighted->
1141                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1142                 }
1143                 if( has_video ) {
1144                         int64_t asset_length = mwindow->session->track_highlighted->
1145                                 to_units(paste_video_length, 1);
1146                         paste_video_position = mwindow->session->track_highlighted->
1147                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1148                 }
1149
1150 // Get destination track
1151                 for(Track *dest = mwindow->session->track_highlighted;
1152                         dest;
1153                         dest = dest->next) {
1154                         if( dest->is_hidden() ) continue;
1155                         if(dest->is_armed()) {
1156 // Get source width in pixels
1157                                 w = -1;
1158 // Use start of highlighted edit
1159                                 if(mwindow->session->edit_highlighted) {
1160                                         position = mwindow->session->track_highlighted->from_units(
1161                                                 mwindow->session->edit_highlighted->startproject);
1162                                 }
1163                                 else {
1164 // Use end of highlighted track, disregarding effects
1165                                         position = mwindow->session->track_highlighted->from_units(
1166                                                 mwindow->session->track_highlighted->edits->length());
1167                                 }
1168
1169 // Get the x coordinate
1170                                 x = Units::to_int64(position *
1171                                         mwindow->edl->session->sample_rate /
1172                                         mwindow->edl->local_session->zoom_sample) -
1173                                         mwindow->edl->local_session->view_start[pane->number];
1174
1175                                 double paste_position = -1.;
1176                                 if(dest->data_type == TRACK_AUDIO) {
1177                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1178 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1179                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1180                                                         indexable->get_sample_rate() *
1181                                                         mwindow->edl->session->sample_rate /
1182                                                         mwindow->edl->local_session->zoom_sample);
1183                                                 paste_position = paste_audio_position;
1184                                         }
1185                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1186                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1187                                                         mwindow->edl->session->sample_rate /
1188                                                         mwindow->edl->local_session->zoom_sample);
1189                                                 paste_position = paste_audio_position;
1190 //printf("draw_paste_destination %d\n", x);
1191                                         }
1192                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1193                                                 current_aedit < mwindow->session->drag_edits->total) {
1194                                                 Edit *edit;
1195                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1196                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1197                                                         current_aedit++;
1198
1199                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1200                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1201                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1202                                                         paste_position = mwindow->session->track_highlighted->
1203                                                                 from_units(drop_edit_position(&insertion,
1204                                                                         mwindow->session->drag_edit,
1205                                                                         mwindow->session->drag_edit->length));
1206                                                         current_aedit++;
1207                                                 }
1208                                         }
1209                                         if( paste_position >= 0 ) {
1210                                                 position = paste_position;
1211                                                 current_atrack++;
1212                                                 //draw_box = 1;
1213                                         }
1214                                         else
1215                                                 w = -1;
1216                                 }
1217                                 else if(dest->data_type == TRACK_VIDEO) {
1218 //printf("draw_paste_destination 1\n");
1219                                         if(indexable && current_vtrack < indexable->get_video_layers())
1220                                         {
1221                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1222                                                         indexable->get_frame_rate() *
1223                                                         mwindow->edl->session->sample_rate /
1224                                                         mwindow->edl->local_session->zoom_sample);
1225                                                 paste_position = paste_video_position;
1226                                         }
1227                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1228                                                 w = Units::to_int64(clip->tracks->total_length() *
1229                                                         mwindow->edl->session->sample_rate /
1230                                                         mwindow->edl->local_session->zoom_sample);
1231                                                 paste_position = paste_video_position;
1232                                         }
1233                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1234                                                 current_vedit < mwindow->session->drag_edits->total) {
1235                                                 Edit *edit;
1236                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1237                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1238                                                         current_vedit++;
1239
1240                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1241                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1242                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1243                                                                 mwindow->edl->session->sample_rate /
1244                                                                 mwindow->edl->local_session->zoom_sample);
1245                                                         paste_position = mwindow->session->track_highlighted->
1246                                                                 from_units(drop_edit_position(&insertion,
1247                                                                         mwindow->session->drag_edit,
1248                                                                         mwindow->session->drag_edit->length));
1249                                                         current_vedit++;
1250                                                 }
1251                                         }
1252                                         if( paste_position >= 0 ) {
1253                                                 position = paste_position;
1254                                                 current_vtrack++;
1255                                                 //draw_box = 1;
1256                                         }
1257                                         else
1258                                                 w = -1;
1259                                 }
1260
1261                                 if(w >= 0) {
1262 // Get the x coordinate
1263                                         x = Units::to_int64(position *
1264                                                 mwindow->edl->session->sample_rate /
1265                                                 mwindow->edl->local_session->zoom_sample) -
1266                                                 mwindow->edl->local_session->view_start[pane->number];
1267                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1268                                         int h = dest->vertical_span(mwindow->theme);
1269
1270 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1271                                         if(x < -BC_INFINITY) {
1272                                                 w -= -BC_INFINITY - x;
1273                                                 x += -BC_INFINITY - x;
1274                                         }
1275                                         w = MIN(65535, w);
1276 // if(pane->number == TOP_RIGHT_PANE)
1277 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1278 // __LINE__, x, y, w, h);
1279                                         if (insertion)
1280                                                 draw_highlight_insertion(x, y, w, h);
1281                                         else
1282                                                 draw_highlight_rectangle(x, y, w, h);
1283                                 }
1284                         }
1285                 }
1286         }
1287 }
1288
1289 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1290 {
1291         x = Units::round(plugin->track->from_units(plugin->startproject) *
1292                 mwindow->edl->session->sample_rate /
1293                 mwindow->edl->local_session->zoom_sample -
1294                 mwindow->edl->local_session->view_start[pane->number]);
1295         w = Units::round(plugin->track->from_units(plugin->length) *
1296                 mwindow->edl->session->sample_rate /
1297                 mwindow->edl->local_session->zoom_sample);
1298         y = plugin->track->y_pixel
1299                 - mwindow->edl->local_session->track_start[pane->number];
1300         if( plugin->track->show_titles() )
1301                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1302         if( plugin->track->show_assets() )
1303                 y += plugin->track->data_h;
1304         y += plugin->plugin_set->get_number() *
1305                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1306         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1307 }
1308
1309
1310 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1311 {
1312
1313 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1314 // just draw arrows, so user has indication that something is there
1315 // FIXME: get better colors
1316
1317         if (x + w <= 0)
1318         {
1319                 draw_triangle_left(0, y + h /6,
1320                         h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1321                 return;
1322         } else
1323         if (x >= get_w())
1324         {
1325                 draw_triangle_right(get_w() - h * 2/3, y + h /6,
1326                         h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1327                 return;
1328         }
1329
1330 // Fix bug in heroines & cvs version as of 22.8.2005:
1331 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1332         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1333         if(x < -10) { w += x - -10;  x = -10; }
1334         if(y < -10) { h += y - -10;  y = -10; }
1335
1336         w = MIN(w, get_w() + 20);
1337         h = MIN(h, get_h() + 20);
1338         if(w > 0 && h > 0)
1339         {
1340                 set_color(mwindow->preferences->highlight_inverse);
1341                 set_inverse();
1342                 //draw_rectangle(x, y, w, h);
1343                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1344                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1345                 set_opaque();
1346                 draw_rectangle(x, y, w, h);
1347         }
1348 //if(pane->number == TOP_RIGHT_PANE)
1349 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1350 }
1351
1352 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1353 {
1354
1355 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1356 // just draw arrows, so user has indication that something is there
1357 // FIXME: get better colors
1358
1359
1360
1361         int h1 = h / 8;
1362         int h2 = h / 4;
1363
1364         set_inverse();
1365
1366 /* these don't look so good
1367
1368         draw_line(x, y, x, y+h);
1369         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1370         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1371         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1372         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1373 */
1374         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1375         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1376
1377 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1378         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1379         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1380         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1381 */
1382         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1383         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1384
1385 // draw the box centred around x
1386         x -= w / 2;
1387 // Fix bug in heroines & cvs version as of 22.8.2005:
1388 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1389         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1390         if(x < -10) { w += x - -10;  x = -10; }
1391         if(y < -10) { h += y - -10;  y = -10; }
1392         w = MIN(w, get_w() + 20);
1393         h = MIN(h, get_h() + 20);
1394         set_color(mwindow->preferences->highlight_inverse);
1395         set_inverse();
1396         draw_rectangle(x, y, w, h);
1397         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1398         set_opaque();
1399 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1400 }
1401
1402 void TrackCanvas::draw_playback_cursor()
1403 {
1404 // Called before playback_cursor exists
1405 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1406 //      {
1407 //              mwindow->playback_cursor->visible = 0;
1408 //              mwindow->playback_cursor->draw();
1409 //      }
1410 }
1411
1412 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1413 {
1414         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1415         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1416
1417         edit_dimensions(edit, x, y, w, h);
1418
1419         if( edit->track->show_titles() )
1420                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1421
1422         if(side == EDIT_OUT)
1423                 x += w - handle_w;
1424
1425         h = handle_h;
1426         w = handle_w;
1427 }
1428
1429 void TrackCanvas::get_transition_coords(Edit *edit,
1430                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1431 {
1432         int transition_w = xS(30), transition_h = yS(30);
1433         int has_titles = edit->track->show_titles();
1434         int has_assets = edit->track->show_assets();
1435         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1436         int data_h = edit->track->data_h;
1437         double ys = has_assets ? data_h : has_titles ? title_bg_h : 0;
1438         double dy = has_titles ?
1439                 ( has_assets ? title_bg_h + data_h/2 : title_bg_h/2 ) :
1440                 ( has_assets ? data_h/2 : 0) ;
1441         double title_h = mwindow->theme->title_h;
1442         if( dy < title_h / 2 ) { ys = title_h;  dy = ys / 2; }
1443         y += dy;
1444
1445         x -= transition_w / 2;
1446         y -= transition_h / 2;
1447         w = transition_w;
1448         h = transition_h;
1449 }
1450
1451 void TrackCanvas::draw_highlighting()
1452 {
1453         int64_t x, y, w, h;
1454         int draw_box = 0;
1455
1456         switch(mwindow->session->current_operation)
1457         {
1458                 case DRAG_ATRANSITION:
1459                 case DRAG_VTRANSITION:
1460 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1461 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1462                         if(mwindow->session->edit_highlighted) {
1463                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1464                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1465                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1466                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1467                                         edit_dimensions(mwindow->session->edit_highlighted,
1468                                                 x, y, w, h);
1469                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1470                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1471                                                 draw_box = 1;
1472                                                 get_transition_coords(mwindow->session->edit_highlighted,
1473                                                         x, y, w, h);
1474                                         }
1475                                 }
1476                         }
1477                         break;
1478
1479 // Dragging a new effect from the Resource window
1480                 case DRAG_AEFFECT:
1481                 case DRAG_VEFFECT:
1482                         if(mwindow->session->track_highlighted &&
1483                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1484                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1485                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1486                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1487 // Put it before another plugin
1488                                 if(mwindow->session->plugin_highlighted) {
1489                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1490                                                 x, y, w, h);
1491 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1492                                 }
1493 // Put it after a plugin set
1494                                 else if( mwindow->session->pluginset_highlighted &&
1495                                          mwindow->session->pluginset_highlighted->last ) {
1496                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1497                                                 x, y, w, h);
1498 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1499                                         int64_t track_x, track_y, track_w, track_h;
1500                                         track_dimensions(mwindow->session->track_highlighted,
1501                                                 track_x, track_y, track_w, track_h);
1502
1503                                         x += w;
1504                                         w = Units::round(
1505                                                         mwindow->session->track_highlighted->get_length() *
1506                                                         mwindow->edl->session->sample_rate /
1507                                                         mwindow->edl->local_session->zoom_sample -
1508                                                         mwindow->edl->local_session->view_start[pane->number]) -
1509                                                 x;
1510 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1511                                         if(w <= 0) w = track_w;
1512                                 }
1513                                 else {
1514                                         track_dimensions(mwindow->session->track_highlighted,
1515                                                 x, y, w, h);
1516
1517 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1518 // Put it in a new plugin set determined by the selected range
1519                                         if(mwindow->edl->local_session->get_selectionend() >
1520                                                 mwindow->edl->local_session->get_selectionstart()) {
1521                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1522                                                         mwindow->edl->session->sample_rate /
1523                                                         mwindow->edl->local_session->zoom_sample -
1524                                                         mwindow->edl->local_session->view_start[pane->number]);
1525                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1526                                                         mwindow->edl->local_session->get_selectionstart()) *
1527                                                         mwindow->edl->session->sample_rate /
1528                                                         mwindow->edl->local_session->zoom_sample);
1529                                         }
1530 // Put it in a new plugin set determined by an edit boundary
1531                                         else if(mwindow->session->edit_highlighted) {
1532                                                 int64_t temp_y, temp_h;
1533                                                 edit_dimensions(mwindow->session->edit_highlighted,
1534                                                         x, temp_y, w, temp_h);
1535                                         }
1536 // Put it at the beginning of the track in a new plugin set
1537                                 }
1538
1539                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1540                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1541 //printf("TrackCanvas::draw_highlighting 1\n");
1542                                         draw_box = 1;
1543                                 }
1544                         }
1545                         break;
1546
1547                 case DRAG_ASSET:
1548                         if(mwindow->session->track_highlighted) {
1549 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1550
1551 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1552 //                              {
1553                                         draw_paste_destination();
1554 //                              }
1555                         }
1556                         break;
1557
1558                 case DRAG_EDIT:
1559                         if(mwindow->session->track_highlighted) {
1560 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1561 //
1562 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1563                                         draw_paste_destination();
1564 //                              }
1565                         }
1566                         break;
1567                 case DRAG_GROUP:
1568                         if( mwindow->session->track_highlighted && mwindow->session->drag_group &&
1569                             mwindow->session->drag_group_edit && mwindow->session->drag_group_first_track ) {
1570                                 Track *track = mwindow->session->track_highlighted;
1571                                 EDL *drag_group = mwindow->session->drag_group;
1572                                 Track *edit_track = mwindow->session->drag_group_edit->track;
1573                                 Track *drag_track = mwindow->session->drag_group_first_track;
1574                                 while( track && edit_track && edit_track != drag_track ) {
1575                                         edit_track = edit_track->previous;
1576                                         track = track->previous;
1577                                 }
1578                                 int cx = get_cursor_x();
1579                                 double cur_pos = mwindow->session->drag_group_position;
1580                                 double new_pos = mwindow->edl->get_cursor_position(cx, pane->number);
1581                                 new_pos -= mwindow->session->drag_position - cur_pos;
1582                                 new_pos = mwindow->edl->align_to_frame(new_pos, 0);
1583                                 double drop_position = new_pos;
1584                                 int color = GREEN;
1585                                 int ret = test_track_group(drag_group, track, new_pos);
1586                                 if( ret < 0 )
1587                                         color = ORANGE;
1588                                 else if( !ret ) {
1589                                         if( new_pos != drop_position ) {
1590                                                 double pos = new_pos;
1591                                                 pos += mwindow->session->drag_position - cur_pos;
1592                                                 cx = mwindow->edl->get_position_cursorx(pos, pane->number);
1593                                                 ret = test_track_group(drag_group, track, new_pos);
1594                                         }
1595                                         color = ret > 0 ? YELLOW : shift_down() ? RED : BLUE;
1596                                 }
1597                                 track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1598                                 int dx = cx - mwindow->session->drag_origin_x;
1599                                 int dy = y - mwindow->session->drag_origin_y;
1600                                 draw_selected_edits(mwindow->edl, dx, dy, color, -1);
1601                         }
1602                         break;
1603 // Dragging an effect from the timeline
1604                 case DRAG_AEFFECT_COPY:
1605                 case DRAG_VEFFECT_COPY:
1606                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1607                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1608                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1609                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1610                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1611
1612                                 int64_t plugin_position = -1;
1613                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1614                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1615                                 Track *hi_track = mwindow->session->track_highlighted;
1616                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1617 // Put it into a silence zone
1618                                 if( hi_plugin_set && hi_plugin_set->last &&
1619                                     hi_plugin_set->track == drag_plugin->track ) {
1620                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1621                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1622                                         hi_track = drag_plugin->track;
1623                                 }
1624                                 else if( hi_track ) {
1625 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1626                                         track_dimensions(hi_track, x, y, w, h);
1627                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1628                                 }
1629
1630                                 if( plugin_position < 0 ) break;
1631
1632 // Calculate length of plugin based on data type of track and units
1633                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1634                                                 mwindow->edl->local_session->zoom_sample;
1635                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1636                                                 mwindow->edl->local_session->view_start[pane->number];
1637                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1638
1639                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1640                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1641                                         draw_box = 1;
1642                                 }
1643                         }
1644                         break;
1645
1646                 case DRAG_PLUGINKEY:
1647                         if(mwindow->session->plugin_highlighted &&
1648                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1649                         {
1650 // Just highlight the plugin
1651                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1652
1653                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1654                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1655                                 {
1656                                         draw_box = 1;
1657                                 }
1658                         }
1659                         break;
1660
1661                 case DRAG_SPEED:
1662                         draw_speed_highlight();
1663                         break;
1664         }
1665
1666         if( draw_box )
1667                 draw_highlight_rectangle(x, y, w, h);
1668
1669         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1670 }
1671
1672 void TrackCanvas::draw_speed_highlight()
1673 {
1674         FloatAuto *drag_speed = (FloatAuto*)mwindow->session->drag_auto;
1675         if( !drag_speed ) return;
1676         draw_speed_track(drag_speed->autos->track);
1677         ArrayList<Auto*> &speed_gang = *mwindow->session->drag_auto_gang;
1678         for( int i=0, sz=speed_gang.size(); i<sz; ++i ) {
1679                 Track *track = speed_gang[i]->autos->track;
1680                 if( track->is_hidden() ) continue;
1681                 draw_speed_track(track);
1682         }
1683 }
1684
1685 void TrackCanvas::draw_speed_track(Track *track)
1686 {
1687         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1688                 int64_t x, y, w, h;
1689                 edit_dimensions(edit, x, y, w, h);
1690                 if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1691                 if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1692                 int color = 0xc00cc0;
1693                 set_color(color);
1694                 set_opaque();
1695                 draw_selected(x, y, w, h);
1696         }
1697 }
1698
1699 // x does not reliably draw a really big rectangle
1700 void TrackCanvas::draw_selected(int x, int y, int w, int h)
1701 {
1702         int x1 = bmax(x, 0), x2 = bmin(x+w, get_w());
1703         if( x1 > x2 ) return;
1704         int y1 = bmax(y, 0), y2 = bmin(y+h, get_h());
1705         if( y1 > y2 ) return;
1706         if( x   >= 0 && x   < get_w() ) draw_line(x,y1,   x,y2);
1707         if( x+w >= 0 && x+w < get_w() ) draw_line(x+w,y1, x+w,y2);
1708         if( y   >= 0 && y   < get_h() ) draw_line(x1,y,   x2,y);
1709         if( y+h >= 0 && y+h < get_h() ) draw_line(x1,y+h, x2,y+h);
1710 }
1711
1712 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1713 {
1714         int dropping = 0;
1715         for( Track *track=edl->tracks->first; track; track=track->next ) {
1716                 if( track->is_hidden() ) continue;
1717                 if( !track->is_armed() && color1 < 0 ) {
1718                         if( dropping )
1719                                 dy -= track->vertical_span(mwindow->theme);
1720                         continue;
1721                 }
1722                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1723                         if( !edit->is_selected ) continue;
1724                         dropping = 1;
1725                         int64_t x, y, w, h;
1726                         edit_dimensions(edit, x, y, w, h);
1727                         x += dx;  y += dy;
1728                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1729                         if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1730                         set_opaque();
1731                         int inner = color1 < 0 ? color0 : !edit->group_id ? color0 :
1732                                 mwindow->get_group_color(edit->group_id);
1733                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1734                         set_color(track->is_armed() ? inner : outer);
1735                         draw_selected(x, y, w, h);
1736                         set_color(track->is_armed() ? outer : inner);
1737                         draw_selected(x-1, y-1, w+2, h+2);
1738                         draw_selected(x-2, y-2, w+1, h+1);
1739                 }
1740         }
1741 }
1742
1743 void TrackCanvas::draw_plugins()
1744 {
1745         char string[BCTEXTLEN];
1746         int current_on = 0;
1747         int current_show = 0;
1748         int current_preset = 0;
1749
1750         for(int i = 0; i < plugin_on_toggles.total; i++)
1751                 plugin_on_toggles.values[i]->in_use = 0;
1752         for(int i = 0; i < plugin_show_toggles.total; i++)
1753                 plugin_show_toggles.values[i]->in_use = 0;
1754         for(int i = 0; i < preset_edit_buttons.total; i++)
1755                 plugin_show_toggles.values[i]->in_use = 0;
1756
1757
1758         for(Track *track = mwindow->edl->tracks->first;
1759                 track;
1760                 track = track->next)
1761         {
1762                 if( track->is_hidden() ) continue;
1763                 if(track->expand_view)
1764                 {
1765                         for(int i = 0; i < track->plugin_set.total; i++)
1766                         {
1767                                 PluginSet *pluginset = track->plugin_set.values[i];
1768
1769                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1770                                 {
1771                                         int64_t total_x, y, total_w, h;
1772                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1773
1774                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1775                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1776                                                 plugin->plugin_type != PLUGIN_NONE)
1777                                         {
1778                                                 int x = total_x, w = total_w, left_margin = 5;
1779                                                 int right_margin = 5;
1780                                                 if(x < 0)
1781                                                 {
1782                                                         w -= -x;
1783                                                         x = 0;
1784                                                 }
1785                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1786
1787                                                 draw_3segmenth(x,
1788                                                         y,
1789                                                         w,
1790                                                         total_x,
1791                                                         total_w,
1792                                                         mwindow->theme->get_image("plugin_bg_data"),
1793                                                         0);
1794                                                 set_color(mwindow->theme->title_color);
1795                                                 set_font(mwindow->theme->title_font);
1796                                                 plugin->calculate_title(string, 0);
1797
1798 // Truncate string to int64_test visible in background
1799                                                 int len = strlen(string), j;
1800                                                 for(j = len; j >= 0; j--)
1801                                                 {
1802                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1803                                                         {
1804                                                                 string[j] = 0;
1805                                                         }
1806                                                         else
1807                                                                 break;
1808                                                 }
1809
1810 // Justify the text on the left boundary of the edit if it is visible.
1811 // Otherwise justify it on the left side of the screen.
1812                                                 int64_t text_x = total_x + left_margin;
1813                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1814                                                 text_x = MAX(left_margin, text_x);
1815                                                 draw_text(text_x,
1816                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1817                                                         string,
1818                                                         strlen(string),
1819                                                         0);
1820                                                 int64_t min_x = total_x + text_w;
1821
1822
1823 // Update plugin toggles
1824                                                 int toggle_x = total_x + total_w;
1825                                                 int toggle_y = y;
1826                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1827
1828 // On toggle
1829                                                 toggle_x -= PluginOn::calculate_w(mwindow) + xS(10);
1830                                                 if(toggle_x > min_x)
1831                                                 {
1832                                                         if(current_on >= plugin_on_toggles.total)
1833                                                         {
1834                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1835                                                                 add_subwindow(plugin_on);
1836                                                                 plugin_on_toggles.append(plugin_on);
1837                                                         }
1838                                                         else
1839                                                         {
1840                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1841                                                         }
1842                                                         current_on++;
1843                                                 }
1844
1845 // Toggles for standalone plugins only
1846                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1847                                                 {
1848 // Show
1849                                                         toggle_x -= PluginShow::calculate_w(mwindow) + xS(10);
1850                                                         if(toggle_x > min_x)
1851                                                         {
1852                                                                 if(current_show >= plugin_show_toggles.total)
1853                                                                 {
1854                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1855                                                                         add_subwindow(plugin_show);
1856                                                                         plugin_show_toggles.append(plugin_show);
1857                                                                 }
1858                                                                 else
1859                                                                 {
1860                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1861                                                                 }
1862                                                                 current_show++;
1863                                                         }
1864                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + xS(10);
1865                                                         if(toggle_x > min_x)
1866                                                         {
1867                                                                 if(current_preset >= preset_edit_buttons.total)
1868                                                                 {
1869                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1870                                                                         add_subwindow(preset_edit);
1871                                                                         preset_edit_buttons.append(preset_edit);
1872                                                                 }
1873                                                                 else
1874                                                                 {
1875                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1876                                                                 }
1877                                                                 current_preset++;
1878                                                         }
1879                                                 }
1880                                         }
1881                                 }
1882                         }
1883                 }
1884         }
1885
1886 // Remove unused toggles
1887
1888         while(current_preset < preset_edit_buttons.total)
1889         {
1890                 preset_edit_buttons.remove_object_number(current_preset);
1891         }
1892         while(current_show < plugin_show_toggles.total)
1893         {
1894                 plugin_show_toggles.remove_object_number(current_show);
1895         }
1896
1897         while(current_on < plugin_on_toggles.total)
1898         {
1899                 plugin_on_toggles.remove_object_number(current_on);
1900         }
1901 }
1902
1903 void TrackCanvas::refresh_plugintoggles()
1904 {
1905         for(int i = 0; i < plugin_on_toggles.total; i++)
1906         {
1907                 PluginOn *on = plugin_on_toggles.values[i];
1908                 on->reposition_window(on->get_x(), on->get_y());
1909         }
1910         for(int i = 0; i < plugin_show_toggles.total; i++)
1911         {
1912                 PluginShow *show = plugin_show_toggles.values[i];
1913                 show->reposition_window(show->get_x(), show->get_y());
1914         }
1915         for(int i = 0; i < preset_edit_buttons.total; i++)
1916         {
1917                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1918                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1919         }
1920 }
1921
1922 void TrackCanvas::draw_hard_edges()
1923 {
1924         if( !mwindow->edl->session->auto_conf->hard_edges )
1925                 return;
1926         int64_t x, y, w, h;
1927
1928         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1929                 if( track->is_hidden() ) continue;
1930                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1931                         if( !edit->hard_left && !edit->hard_right ) continue;
1932                         edit_dimensions(edit, x, y, w, h);
1933                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ||
1934                             !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1935                         set_color(GREEN);
1936                         set_opaque();
1937                         int y1 = y;
1938                         if( track->show_titles() )
1939                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1940                         if( track->show_assets() )
1941                                 y1 += track->data_h;
1942                         if( y1 == y )
1943                                 y1 += mwindow->theme->title_h;
1944                         if( edit->hard_left ) {
1945                                 ArrayList<int> xpt, ypt;
1946                                 xpt.append(x);              ypt.append(y1);
1947                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1948                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1949                                 fill_polygon(&xpt, &ypt);
1950                         }
1951                         if( edit->hard_right ) {
1952                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1953                                 xpt.append(x1);            ypt.append(y1);
1954                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1955                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1956                                 fill_polygon(&xpt, &ypt);
1957                         }
1958                 }
1959         }
1960 }
1961
1962 void TrackCanvas::draw_inout_points()
1963 {
1964 }
1965
1966
1967 void TrackCanvas::draw_drag_handle()
1968 {
1969         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 &&
1970             mwindow->session->current_operation != DRAG_PLUGINHANDLE2 &&
1971             mwindow->session->current_operation != DRAG_TRANSNHANDLE2 ) return;
1972         int64_t pixel1 = Units::round(mwindow->session->drag_position *
1973                 mwindow->edl->session->sample_rate /
1974                 mwindow->edl->local_session->zoom_sample -
1975                 mwindow->edl->local_session->view_start[pane->number]);
1976         set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1977         set_inverse();
1978         draw_line(pixel1, 0, pixel1, get_h());
1979         set_opaque();
1980
1981         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 ) return;
1982         if( !mwindow->session->drag_edit ) return;
1983         int group_id = mwindow->session->drag_edit->group_id;
1984         if( !group_id ) return;
1985         int64_t dx, dy, dw, dh;
1986         edit_dimensions(mwindow->session->drag_edit, dx, dy, dw, dh);
1987         int drag_handle = mwindow->session->drag_handle;
1988         int64_t pixel0 = !drag_handle ? dx : dx + dw;
1989         int delta = pixel1 - pixel0;
1990         set_color(LTPURPLE);
1991         set_line_width(3);
1992
1993         for( Track *track=mwindow->edl->tracks->first; track; track=track->next ) {
1994                 if( track->is_hidden() ) continue;
1995                 Edit *left = 0, *right = 0;
1996                 double start = DBL_MAX, end = DBL_MIN;
1997                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1998                         if( edit->group_id != group_id ) continue;
1999                         double edit_start = edit->track->from_units(edit->startproject);
2000                         if( edit_start < start ) { start = edit_start;  left = edit; }
2001                         double edit_end = edit->track->from_units(edit->startproject+edit->length);
2002                         if( edit_end > end ) { end = edit_end;  right = edit; }
2003                 }
2004                 Edit *edit = !drag_handle ? left : right;
2005                 if( !edit ) continue;
2006                 Indexable *idxbl = edit->asset;
2007                 if( !idxbl ) idxbl = edit->nested_edl;
2008                 int can_drag = idxbl ? 1 : 0;
2009                 if( drag_handle ) {
2010                         int64_t source_len = !idxbl ? -1 :
2011                                 edit->track->data_type == TRACK_AUDIO ?
2012                                         idxbl->get_audio_samples() :
2013                                 edit->track->data_type == TRACK_VIDEO ?
2014                                         idxbl->get_video_frames() : -1;
2015                         int64_t speed_start = edit->startproject;
2016                         int64_t speed_end = speed_start + edit->length;
2017                         int64_t speed_length = track->speed_length(speed_start, speed_end);
2018                         if( edit->startsource + speed_length >= source_len )
2019                                 can_drag = 0;
2020                 }
2021                 else if( !edit->startsource )
2022                         can_drag = 0;
2023                 int64_t x, y, w, h;
2024                 edit_dimensions(edit, x, y, w, h);
2025                 if( y+h < 0 || y >= get_h() ) continue;
2026                 int edge_x = !drag_handle ? x : x + w;
2027                 int edge_y = y + h/2, xs10 = xS(10), ys10 = yS(10);
2028                 if( edge_x >= 0 && edge_x < get_w() ) {
2029                         if( !can_drag ) {
2030                                 draw_line(edge_x-xs10,edge_y-ys10, edge_x+xs10,edge_y+ys10);
2031                                 draw_line(edge_x-xs10,edge_y+ys10, edge_x+xs10,edge_y-ys10);
2032                         }
2033                         else if( !drag_handle ) {
2034                                 draw_line(edge_x+xs10,edge_y-ys10, edge_x,edge_y);
2035                                 draw_line(edge_x+xs10,edge_y+ys10, edge_x,edge_y);
2036                         }
2037                         else {
2038                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y-ys10);
2039                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y+ys10);
2040                         }
2041                 }
2042                 edge_x += delta;
2043                 if( edge_x >= 0 && edge_x < get_w() ) {
2044                         draw_line(edge_x, y, edge_x, y+h);
2045                 }
2046         }
2047         set_line_width(1);
2048 }
2049
2050
2051 void TrackCanvas::draw_transitions()
2052 {
2053         int64_t x, y, w, h;
2054
2055         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2056                 if( track->is_hidden() ) continue;
2057                 if( !track->show_transitions() ) continue;
2058
2059                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2060                         if(!edit->transition) continue;
2061                         edit_dimensions(edit, x, y, w, h);
2062                         int strip_x = x, edit_y = y;
2063                         get_transition_coords(edit, x, y, w, h);
2064                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2065                         if( track->show_assets() && track->show_titles() )
2066                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2067                         if( strip_y < edit_y ) strip_y = edit_y;
2068
2069                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2070                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2071                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2072                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2073                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2074                                                 track->data_type);
2075                                 if( !server ) continue;
2076                                 VFrame *picon = server->get_picon();
2077                                 if( !picon ) continue;
2078                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2079                                 int track_h = edit->track->vertical_span(mwindow->theme);
2080                                 if( picon_h > track_h ) picon_h = track_h;
2081                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2082                         }
2083                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2084                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2085                                 int x = strip_x, w = strip_w;
2086                                 if( x < 0 ) {  w -= -x;  x = 0; }
2087                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2088
2089                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2090                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2091                         }
2092                 }
2093         }
2094 }
2095
2096 void TrackCanvas::draw_loop_points()
2097 {
2098 //printf("TrackCanvas::draw_loop_points 1\n");
2099         if(mwindow->edl->local_session->loop_playback)
2100         {
2101 //printf("TrackCanvas::draw_loop_points 2\n");
2102                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2103                         mwindow->edl->session->sample_rate /
2104                         mwindow->edl->local_session->zoom_sample -
2105                         mwindow->edl->local_session->view_start[pane->number]);
2106 //printf("TrackCanvas::draw_loop_points 3\n");
2107
2108                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2109                 {
2110                         set_color(GREEN);
2111                         draw_line(x, 0, x, get_h());
2112                 }
2113 //printf("TrackCanvas::draw_loop_points 4\n");
2114
2115                 x = Units::round(mwindow->edl->local_session->loop_end *
2116                         mwindow->edl->session->sample_rate /
2117                         mwindow->edl->local_session->zoom_sample -
2118                         mwindow->edl->local_session->view_start[pane->number]);
2119 //printf("TrackCanvas::draw_loop_points 5\n");
2120
2121                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2122                 {
2123                         set_color(GREEN);
2124                         draw_line(x, 0, x, get_h());
2125                 }
2126 //printf("TrackCanvas::draw_loop_points 6\n");
2127         }
2128 //printf("TrackCanvas::draw_loop_points 7\n");
2129 }
2130
2131 void TrackCanvas::draw_brender_range()
2132 {
2133         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2134         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2135         if( mwindow->edl->session->brender_end > 0 )
2136         {
2137                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2138                         mwindow->edl->session->sample_rate /
2139                         mwindow->edl->local_session->zoom_sample -
2140                         mwindow->edl->local_session->view_start[pane->number]);
2141                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2142                 {
2143                         set_color(RED);
2144                         draw_line(x1, 0, x1, get_h());
2145                 }
2146                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2147                         mwindow->edl->session->sample_rate /
2148                         mwindow->edl->local_session->zoom_sample -
2149                         mwindow->edl->local_session->view_start[pane->number]);
2150
2151                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2152                 {
2153                         set_color(RED);
2154                         draw_line(x2, 0, x2, get_h());
2155                 }
2156         }
2157 }
2158
2159 // The operations which correspond to each automation type
2160 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2161 {
2162         DRAG_MUTE,
2163         DRAG_CAMERA_X,
2164         DRAG_CAMERA_Y,
2165         DRAG_CAMERA_Z,
2166         DRAG_PROJECTOR_X,
2167         DRAG_PROJECTOR_Y,
2168         DRAG_PROJECTOR_Z,
2169         DRAG_FADE,
2170         DRAG_PAN,
2171         DRAG_MODE,
2172         DRAG_MASK,
2173         DRAG_SPEED
2174 };
2175
2176 // The buttonpress operations, so nothing changes unless the mouse moves
2177 // a certain amount.  This allows the keyframe to be used to position the
2178 // insertion point without moving itself.
2179 static int pre_auto_operations[AUTOMATION_TOTAL] =
2180 {
2181         DRAG_MUTE,
2182         DRAG_CAMERA_X,
2183         DRAG_CAMERA_Y,
2184         DRAG_CAMERA_Z,
2185         DRAG_PROJECTOR_X,
2186         DRAG_PROJECTOR_Y,
2187         DRAG_PROJECTOR_Z,
2188         DRAG_FADE,
2189         DRAG_PAN_PRE,
2190         DRAG_MODE_PRE,
2191         DRAG_MASK_PRE,
2192         DRAG_SPEED
2193 };
2194
2195
2196 int TrackCanvas::do_keyframes(int cursor_x,
2197         int cursor_y,
2198         int draw,
2199         int buttonpress,
2200         int &new_cursor,
2201         int &update_cursor,
2202         int &rerender)
2203 {
2204 // Note: button 3 (right mouse button) is not eaten to allow
2205 // track context menu to appear
2206         int result = 0;
2207         EDLSession *session = mwindow->edl->session;
2208         int gang = session->gang_tracks != GANG_NONE || get_double_click() ? 1 : 0;
2209
2210         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2211         {
2212                 0, 0, 0, 0, 0, 0, 0, 0,
2213                 pankeyframe_pixmap,
2214                 modekeyframe_pixmap,
2215                 maskkeyframe_pixmap,
2216                 0,
2217         };
2218
2219
2220
2221         for(Track *track = mwindow->edl->tracks->first;
2222                 track && !result;
2223                 track = track->next) {
2224                 if( track->is_hidden() ) continue;
2225                 Auto *auto_keyframe = 0;
2226                 Automation *automation = track->automation;
2227
2228
2229 // Handle keyframes in reverse drawing order if a button press
2230                 int start = 0;
2231                 int end = AUTOMATION_TOTAL;
2232                 int step = 1;
2233                 if(buttonpress)
2234                 {
2235                         start = AUTOMATION_TOTAL - 1;
2236                         end = -1;
2237                         step = -1;
2238                 }
2239                 for(int i = start; i != end && !result; i += step)
2240                 {
2241 // Event not trapped and automation visible
2242                         Autos *autos = automation->autos[i];
2243                         if(!result && session->auto_conf->autos[i] && autos) {
2244                                 switch(i) {
2245                                 case AUTOMATION_MODE:
2246                                 case AUTOMATION_PAN:
2247                                 case AUTOMATION_MASK:
2248                                         result = do_autos(track, automation->autos[i],
2249                                                 cursor_x, cursor_y, draw,
2250                                                 buttonpress, auto_pixmaps[i],
2251                                                 auto_keyframe, rerender);
2252                                                 break;
2253
2254                                 default: {
2255                                         switch(autos->get_type()) {
2256                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2257                                                 Automation automation(0, track);
2258                                                 int grouptype = automation.autogrouptype(i, track);
2259                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2260                                                         mwindow->speed_before();
2261                                                 }
2262
2263                                                 if(draw) // Do dropshadow
2264                                                         result = do_float_autos(track, autos,
2265                                                                 cursor_x, cursor_y, draw,
2266                                                                 buttonpress, 1, 1, MDGREY,
2267                                                                 auto_keyframe, grouptype);
2268                                                 result = do_float_autos(track, autos,
2269                                                         cursor_x, cursor_y, draw, buttonpress,
2270                                                         0, 0, GWindowGUI::auto_colors[i],
2271                                                         auto_keyframe, grouptype);
2272
2273                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2274                                                         mwindow->speed_after(-1, 0);
2275                                                 if( result && buttonpress ) {
2276                                                         int color = GWindowGUI::auto_colors[i];
2277                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2278                                                 }
2279                                                 break; }
2280
2281                                         case Autos::AUTOMATION_TYPE_INT: {
2282                                                 if(draw) // Do dropshadow
2283                                                         result = do_int_autos(track, autos,
2284                                                                 cursor_x, cursor_y, draw,
2285                                                                 buttonpress, 1, 1, MDGREY,
2286                                                                 auto_keyframe);
2287                                                 result = do_int_autos(track, autos,
2288                                                         cursor_x, cursor_y, draw, buttonpress,
2289                                                         0, 0, GWindowGUI::auto_colors[i],
2290                                                         auto_keyframe);
2291                                                 break; }
2292                                         }
2293                                         break; }
2294                                 }
2295
2296                                 if(result)
2297                                 {
2298                                         if(mwindow->session->current_operation == auto_operations[i])
2299                                                 rerender = 1;
2300
2301 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2302 // __LINE__,
2303 // mwindow->session->current_operation,
2304 // auto_operations[i]);
2305                                         if(buttonpress)
2306                                         {
2307                                                 if (buttonpress == 2 && auto_keyframe )
2308                                                 {
2309                                                         double position = track->from_units(auto_keyframe->position);
2310                                                         mwindow->edl->local_session->set_selectionstart(position);
2311                                                         mwindow->edl->local_session->set_selectionend(position);
2312                                                 }
2313                                                 if (buttonpress != 3)
2314                                                 {
2315                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2316                                                                 fill_ganged_autos(gang, 0, track,
2317                                                                         (FloatAuto*)mwindow->session->drag_auto);
2318                                                         mwindow->session->current_operation = pre_auto_operations[i];
2319                                                         update_drag_caption();
2320                                                         rerender = 1;
2321                                                 }
2322                                                 else if( auto_keyframe )
2323                                                 {
2324                                                         gui->keyframe_menu->update(automation,
2325                                                                 autos,
2326                                                                 auto_keyframe);
2327                                                         gui->keyframe_menu->activate_menu();
2328                                                         rerender = 1; // the position changes
2329                                                 }
2330                                                 else if( autos )
2331                                                 {
2332                                                         gui->keyframe_hide->update(autos);
2333                                                         gui->keyframe_hide->activate_menu();
2334                                                         rerender = 1; // the position changes
2335                                                 }
2336                                                 if(buttonpress == 1 && ctrl_down() &&
2337                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2338                                                         rerender = 1; // special case: curve mode changed
2339                                         }
2340                                 }
2341                         }
2342                 }
2343
2344                 if(!result && session->auto_conf->plugins) {
2345                         Plugin *plugin;
2346                         KeyFrame *keyframe;
2347                         result = do_plugin_autos(track, cursor_x, cursor_y,
2348                                 draw, buttonpress, plugin, keyframe);
2349                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2350                                 rerender = 1;
2351                         }
2352                         if(result && (buttonpress == 1)) {
2353                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2354                                 update_drag_caption();
2355                                 rerender = 1;
2356                         }
2357                         else if (result && (buttonpress == 3)) {
2358                                 gui->keyframe_menu->update(plugin, keyframe);
2359                                 gui->keyframe_menu->activate_menu();
2360                                 rerender = 1; // the position changes
2361                         }
2362                 }
2363         }
2364
2365 // Final pass to trap event
2366         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2367                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2368                         mwindow->session->current_operation == auto_operations[i]) {
2369                         result = 1;
2370                         break;
2371                 }
2372         }
2373
2374         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2375                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2376                 result = 1;
2377         }
2378
2379         update_cursor = 1;
2380         if(result) {
2381                 new_cursor = UPRIGHT_ARROW_CURSOR;
2382         }
2383
2384         return result;
2385 }
2386
2387 void TrackCanvas::draw_keyframe_reticle()
2388 {
2389         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2390         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2391
2392         int current_op = mwindow->session->current_operation, dragging = 0;
2393         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2394                 if( current_op == auto_operations[i] ) dragging = 1;
2395         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2396
2397         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2398                 mwindow->session->drag_auto->autos->autoidx : -1;
2399
2400         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2401             keyframe_hairline == HAIRLINE_DRAGGING ) {
2402                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2403                 return;
2404         }
2405
2406         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2407             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2408                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2409                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2410                         if( track->is_hidden() ) continue;
2411                         Automation *automation = track->automation;
2412                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2413                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2414                                 // automation visible
2415                                 Autos *autos = automation->autos[i];
2416                                 if( !autos ) continue;
2417                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2418                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2419                                      auto_keyframe = auto_keyframe->next ) {
2420                                         draw_hairline(auto_keyframe, BLUE, show);
2421                                 }
2422                         }
2423                 }
2424
2425                 if( dragging )
2426                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2427         }
2428 }
2429
2430 void TrackCanvas::draw_auto(Auto *current, int x, int y,
2431                 int center_pixel, int data_h)
2432 {
2433         int x1, y1, x2, y2;
2434
2435         x1 = x - HANDLE_W / 2;
2436         x2 = x + HANDLE_W / 2;
2437         y1 = center_pixel + y - HANDLE_W / 2;
2438         y2 = center_pixel + y + HANDLE_W / 2;
2439
2440         if( y1 < center_pixel - data_h/2 ) y1 = center_pixel - data_h/2;
2441         if( y2 > center_pixel + data_h/2 ) y2 = center_pixel + data_h/2;
2442
2443         draw_box(x1, y1, x2 - x1, y2 - y1);
2444 }
2445
2446
2447 // This draws lines for bezier in & out controls
2448 void TrackCanvas::draw_cropped_line(int x1,
2449         int y1,
2450         int x2,
2451         int y2,
2452         int min_y,
2453         int max_y)
2454 {
2455
2456
2457 // Don't care about x since it is clipped by the window.
2458 // Put y coords in ascending order
2459         if(y2 < y1) {
2460                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2461                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2462         }
2463
2464
2465
2466         double slope = (double)(x2 - x1) / (y2 - y1);
2467 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2468         if(y1 < min_y) {
2469                 x1 = (int)(x1 + (min_y - y1) * slope);
2470                 y1 = min_y;
2471         }
2472         else if(y1 >= max_y) {
2473                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2474                 y1 = max_y - 1;
2475         }
2476
2477         if(y2 >= max_y) {
2478                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2479                 y2 = max_y - 1;
2480         }
2481         else if(y2 < min_y) {
2482                 x2 = (int)(x2 + (min_y - y2) * slope);
2483                 y1 = min_y;
2484         }
2485
2486
2487 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2488         if( y1 >= min_y && y1 < max_y &&
2489             y2 >= min_y && y2 < max_y )
2490                 draw_line(x1, y1, x2, y2);
2491 }
2492
2493
2494 void TrackCanvas::draw_floatauto(FloatAuto *current,
2495                 int x_offset, int center_pixel, int data_h, int color,
2496                 double unit_start, double zoom_units, double yscale,
2497                 int autogrouptype)
2498 {
2499         double xx, yy;
2500         calculate_auto_position(1, &xx, &yy, 0, 0, 0, 0,
2501                 current, unit_start, zoom_units, yscale, autogrouptype);
2502         int x = (int)xx + x_offset;
2503         int x1 = x - HANDLE_W / 2; // Center
2504         int x2 = x + HANDLE_W / 2;
2505         int y = (int)yy + center_pixel;
2506         int y1 = y - HANDLE_H / 2;
2507         int y2 = y + HANDLE_H / 2;
2508         int ymin = center_pixel - data_h / 2;
2509         int ymax = center_pixel + data_h / 2;
2510         CLAMP(y1, ymin, ymax);
2511         CLAMP(y2, ymin, ymax);
2512
2513         if( y2-1 > y1 ) {
2514                 if( current->curve_mode == FloatAuto::LINEAR ) {
2515                         draw_box(x1, y1, x2 - x1, y2 - y1);
2516                 }
2517                 else {
2518                         ArrayList<int> polygon_x;
2519                         ArrayList<int> polygon_y;
2520                         polygon_x.append((x1 + x2) / 2 + 1);
2521                         polygon_y.append(y1 + 1);
2522                         polygon_x.append(x2 + 1);
2523                         polygon_y.append((y1 + y2) / 2 + 1);
2524                         polygon_x.append((x1 + x2) / 2 + 1);
2525                         polygon_y.append(y2 + 1);
2526                         polygon_x.append(x1 + 1);
2527                         polygon_y.append((y1 + y2) / 2 + 1);
2528                         fill_polygon(&polygon_x, &polygon_y);
2529                 }
2530         }
2531
2532 // show bezier control points (only) if this
2533 // floatauto doesn't adjust it's tangents automatically
2534         if(current->curve_mode != FloatAuto::FREE &&
2535            current->curve_mode != FloatAuto::TFREE &&
2536            current->curve_mode != FloatAuto::BUMP)
2537                 return;
2538         double in_xx, in_yy, out_xx, out_yy;
2539         calculate_auto_position(1, &xx, &yy, &in_xx, &in_yy, 0, 0,
2540                 current, unit_start, zoom_units, yscale, autogrouptype);
2541         int ix = xx, iy = yy, in_x = in_xx, in_y = in_yy;
2542         if( in_x != ix )
2543                 draw_floatauto_ctrlpoint(ix, iy, in_x, in_y, center_pixel, data_h, color);
2544         calculate_auto_position(0, &xx, &yy, 0, 0, &out_xx, &out_yy,
2545                 current, unit_start, zoom_units, yscale, autogrouptype);
2546         int ox = xx, oy = yy, out_x = out_xx, out_y = out_yy;
2547         if( out_x != ox )
2548                 draw_floatauto_ctrlpoint(ox, oy, out_x, out_y, center_pixel, data_h, color);
2549         if( current->curve_mode == FloatAuto::BUMP && iy != oy )
2550                 draw_bline(ix, iy+center_pixel, ox, oy+center_pixel);
2551 }
2552
2553 inline int quantize(float f) { return (int)floor(f + 0.5); }
2554
2555 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2556                 int x, int y, int cp_x, int cp_y, int center_pixel,
2557                 int data_h, int color)
2558 // draw the tangent and a handle for given bézier ctrl point
2559 {
2560         bool handle_visible = (abs(cp_y) <= data_h/2);
2561
2562         float slope = (float)(cp_y - y)/(cp_x - x);
2563         CLAMP(cp_y, -data_h/2, data_h/2);
2564         if(slope != 0)
2565                 cp_x = x + quantize((cp_y - y) / slope);
2566
2567         y    += center_pixel;
2568         cp_y += center_pixel;
2569
2570         // drawing the tangent as a dashed line...
2571         int const dash = HANDLE_W;
2572         int const gap  = HANDLE_W / 2;
2573         float sx = 3 * (cp_x - x) / 4.;
2574         float ex = 0;
2575
2576         // q is the x displacement for a unit line of slope
2577         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2578
2579         float dist = 1/q * sx;
2580         if( dist > dash )
2581                 ex = sx - q * dash;
2582
2583         set_color(color);
2584         do {
2585                 float sy = slope * sx, ey = slope * ex;
2586                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2587                 sx = ex - q * gap;
2588                 ex = sx - q * dash;
2589         } while(q*ex > 0);
2590
2591         if(handle_visible)
2592         {
2593                 int r = HANDLE_W / 2;
2594                 int cp_x1 = cp_x - r;
2595                 int cp_y1 = cp_y - r;
2596                 set_color(BLACK);
2597                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2598                 set_color(color);
2599                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2600         }
2601 }
2602
2603
2604 int TrackCanvas::test_auto(Auto *current,
2605         int x, int y, int center_pixel, int data_h,
2606         int cursor_x, int cursor_y, int buttonpress)
2607 {
2608         int x1, y1, x2, y2;
2609         int result = 0;
2610
2611         x1 = x - HANDLE_W / 2;
2612         x2 = x + HANDLE_W / 2;
2613         y1 = center_pixel + y - HANDLE_H / 2;
2614         y2 = center_pixel + y + HANDLE_H / 2;
2615         int ymin = center_pixel - data_h/2;
2616         int ymax = center_pixel + data_h/2;
2617         CLAMP(y1, ymin, ymax);
2618         CLAMP(y2, ymin, ymax);
2619
2620         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2621         {
2622                 if(buttonpress && buttonpress != 3)
2623                 {
2624                         mwindow->session->drag_auto = current;
2625                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2626                         // Toggle Autos don't respond to vertical zoom, they always show up
2627                         // with "on" == 100% == line on top
2628                         mwindow->session->drag_start_position = current->position;
2629                         mwindow->session->drag_origin_x = cursor_x;
2630                         mwindow->session->drag_origin_y = cursor_y;
2631                 }
2632                 result = 1;
2633         }
2634
2635         if(buttonpress && buttonpress != 3 && result)
2636         {
2637 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2638                 mwindow->undo->update_undo_before();
2639         }
2640
2641         return result;
2642 }
2643
2644 // some Helpers for test_floatauto(..)
2645 // and for dragging the tangents/ctrl points
2646 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2647         float cursor_x, float cursor_y)
2648 {
2649 // Control point switched off?
2650         if( x0 == ctrl_x ) return 0.0;
2651         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2652         double x = cursor_x-x0, y = cursor_y-y0;
2653 // wrong side of ctrl handle
2654         if( x*x1 < 0 ) return 0.0;
2655 // outside handle radius
2656         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2657         double xx1 = x1*x1, yy1 = y1*y1;
2658         double xx = x*x, yy = y*y;
2659 // distance squared from cursor to cursor projected to line from ctrl to handle
2660 //   along a line perpendicular to line from ctrl to handle (closest approach)
2661 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2662         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2663         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2664 }
2665
2666
2667 inline
2668 float levered_position(float position, float ref_pos)
2669 {
2670         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2671                 return 0.0;
2672         return ref_pos / position;
2673 }
2674
2675
2676 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2677 // transforms automation value into current display coords,
2678 // dependant on current automation display range for the given kind of automation
2679 {
2680         if(!mwindow || !mwindow->edl) return 0;
2681         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2682         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2683         float automation_range = automation_max - automation_min;
2684         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2685                 return 0;
2686         return (auto_value - automation_min) / automation_range;
2687 }
2688
2689
2690
2691 int TrackCanvas::test_floatauto(FloatAuto *current, int buttonpress,
2692                 int center_pixel, int data_h, int cursor_x, int cursor_y,
2693                 double unit_start, double zoom_units, double yscale,
2694                 int autogrouptype)
2695 {
2696         int result = 0;
2697         double xx, yy, in_xx, in_yy, out_xx, out_yy;
2698         calculate_auto_position(1, &xx, &yy, &in_xx, &in_yy, 0, 0,
2699                 current, unit_start, zoom_units, yscale, autogrouptype);
2700         int ix = xx, iy = yy, in_x = in_xx, in_y = in_yy;
2701
2702         int x1 = ix - HANDLE_W / 2;
2703         int x2 = ix + HANDLE_W / 2;
2704         int y1 = center_pixel + iy - HANDLE_W / 2;
2705         int y2 = center_pixel + iy + HANDLE_W / 2;
2706         int ymin = center_pixel - data_h/2;
2707         int ymax = center_pixel + data_h/2;
2708         CLAMP(y1, ymin, ymax);
2709         CLAMP(y2, ymin, ymax);
2710
2711         int in_x1 = in_x - HANDLE_W / 2;
2712         int in_x2 = in_x + HANDLE_W / 2;
2713         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2714         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2715         CLAMP(in_y1, ymin, ymax);
2716         CLAMP(in_y2, ymin, ymax);
2717
2718         calculate_auto_position(0, &xx, &yy, 0, 0, &out_xx, &out_yy,
2719                 current, unit_start, zoom_units, yscale, autogrouptype);
2720         int ox = xx, oy = yy, out_x = out_xx, out_y = out_yy;
2721         int out_x1 = out_x - HANDLE_W / 2;
2722         int out_x2 = out_x + HANDLE_W / 2;
2723         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2724         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2725         CLAMP(out_y1, ymin, ymax);
2726         CLAMP(out_y2, ymin, ymax);
2727
2728
2729 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2730 // buttonpress could be the start of a drag operation
2731 #define INIT_DRAG(POS,VAL) \
2732                 mwindow->session->drag_auto = current;      \
2733                 mwindow->session->drag_origin_x = cursor_x;  \
2734                 mwindow->session->drag_origin_y = cursor_y;   \
2735                 mwindow->session->drag_start_position = (POS); \
2736                 mwindow->session->drag_start_percentage = (VAL);
2737
2738 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2739
2740
2741 // without modifier we are manipulating the automation node
2742 // with ALT it's about dragging only the value of the node
2743 // with SHIFT the value snaps to the value of neighbouring nodes
2744 // CTRL indicates we are rather manipulating the tangent(s) of the node
2745
2746         if(!ctrl_down())
2747         {
2748                 if( WITHIN(x1,x2,y1,y2))
2749                 {       // cursor hits node
2750                         result = 1;
2751
2752                         if(buttonpress && (buttonpress != 3))
2753                         {
2754                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2755                                 mwindow->session->drag_handle = 0;
2756                 }       }
2757         }
2758         else // ctrl_down()
2759         {
2760                 if( WITHIN(x1,x2,y1,y2))
2761                 {
2762                         result = 1;
2763                         if(buttonpress && (buttonpress != 3))
2764                         {
2765                                 // could be ctrl-click or ctrl-drag
2766                                 // click would cycle through tangent modes
2767                                 ((FloatAuto*)current)->toggle_curve_mode();
2768
2769                                 // drag will start dragging the tangent, if applicable
2770                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2771                                 mwindow->session->drag_handle = 0;
2772                         }
2773                 }
2774
2775                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2776
2777 // Test in control
2778                 if( in_x != ix && current->position > 0 &&
2779                         (FloatAuto::FREE == current->curve_mode ||
2780                          FloatAuto::TFREE == current->curve_mode ||
2781                          FloatAuto::BUMP == current->curve_mode))
2782 // act on in control handle only if
2783 // tangent is significant and is editable (not automatically choosen)
2784                 {
2785                         lever = test_curve_line(ix, iy, in_x, in_y, cursor_x, cursor_y-center_pixel);
2786  // either cursor in ctrl-point handle or cursor on tangent line
2787                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2788                                 result = 1;
2789                                 if(buttonpress && (buttonpress != 3)) {
2790                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2791 //                                      lever = 1.0;
2792                                         mwindow->session->drag_handle = 1;
2793                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2794                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2795                                                   value_to_percentage(new_invalue, autogrouptype))
2796                                 }
2797                         }
2798                 }
2799
2800 // Test out control
2801                 if(out_x != ox &&
2802                         (FloatAuto::FREE == current->curve_mode ||
2803                          FloatAuto::TFREE == current->curve_mode ||
2804                          FloatAuto::BUMP == current->curve_mode))
2805 // act on out control only if tangent is significant and is editable
2806                 {
2807                         lever = test_curve_line(ox, oy, out_x, out_y, cursor_x, cursor_y-center_pixel);
2808                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2809                                 result = 1;
2810                                 if(buttonpress && (buttonpress != 3)) {
2811                                         if(lever == 0.0) lever=1.0;
2812 //                                      lever = 1.0;
2813                                         mwindow->session->drag_handle = 2;
2814                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2815                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2816                                                   value_to_percentage(new_outvalue, autogrouptype))
2817                                 }
2818                         }
2819                 }
2820         } // end ctrl_down()
2821
2822 #undef WITHIN
2823 #undef INIT_DRAG
2824
2825 // if(buttonpress)
2826 // printf("TrackCanvas::test_floatauto 2 drag_handle=%d ctrl_down=%d cursor_x=%d cursor_y=%d x1=%d x2=%d y1=%d y2=%d\n",
2827 // mwindow->session->drag_handle,
2828 // ctrl_down(),
2829 // cursor_x,
2830 // cursor_y,
2831 // x1, x2, y1, y2);
2832         if(buttonpress && (buttonpress != 3) && result)
2833         {
2834                 mwindow->undo->update_undo_before();
2835                 double position = current->autos->track->from_units(current->position);
2836                 mwindow->edl->local_session->set_selectionstart(position);
2837                 mwindow->edl->local_session->set_selectionend(position);
2838         }
2839
2840         return result;
2841 }
2842
2843 static int is_linear(FloatAuto *prev, FloatAuto *next)
2844 {
2845         if( !prev || !next ) return 0;
2846         if( prev->curve_mode == FloatAuto::LINEAR ) return 1;
2847         int64_t ipos = prev->get_control_in_position();
2848         int64_t opos = prev->get_control_out_position();
2849         if( !ipos && !opos ) return 1;
2850         if( !ipos || !opos ) return 0;
2851         float ival = next->get_control_in_value();
2852         float oval = prev->get_control_out_value();
2853         float cval = prev->get_value(0), nval = next->get_value(1);
2854         if( !ival && !oval && EQUIV(cval, nval) ) return 1;
2855         float ig = ival / ipos, og = oval / opos;
2856         int64_t cpos = prev->position, npos = next->position;
2857         float g = (nval - cval) / (npos - cpos);
2858         if( !EQUIV(g, 0) && EQUIV(ig, g) && EQUIV(og, g) ) return 1;
2859         return 0;
2860 }
2861
2862 // Get the float value & y for position x on the canvas
2863 #define X_TO_FLOATLINE(x) \
2864         double position = unit_start + x * zoom_units; \
2865         int64_t position1 = (int64_t)position, position2 = position1 + 1; \
2866 /* Call by reference fails for some reason here */ \
2867         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2868         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2869         double value = value1 + (value2 - value1) * (position - position1); \
2870         AUTOMATIONCLAMPS(value, autogrouptype); \
2871         int y = center_pixel + \
2872                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2873
2874
2875 void TrackCanvas::draw_floatline(int center_pixel,
2876         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2877         double unit_start, double zoom_units, double yscale,
2878         int x1, int y1, int x2, int y2,
2879         int color, int autogrouptype)
2880 {
2881         int ytop = center_pixel - yscale / 2;
2882         int ybot = center_pixel + yscale / 2 - 1;
2883         y1 += center_pixel;  y2 += center_pixel;
2884         if( (y1 < ytop && y1 >= ybot) && (y2 < ytop || y2 >= ybot) ) return;
2885 // check for line draw
2886         if( is_linear(previous, next) ) {
2887                 if( previous && previous->curve_mode == FloatAuto::BUMP ) {
2888                         double ax, ay;
2889                         calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0, previous,
2890                                 unit_start, zoom_units, yscale, autogrouptype);
2891                         x1 = ax;  y1 = ay;  y1 += center_pixel;
2892                 }
2893                 draw_line(x1, y1, x2, y2);
2894                 return;
2895         }
2896
2897 // Solve bezier equation for either every pixel or a certain large number of
2898 // points.
2899
2900 // Not using slope intercept
2901         x1 = MAX(0, x1);
2902         draw_pixel(x1, y1);
2903         int prev_y = y1;
2904
2905 // Call by reference fails for some reason here
2906         FloatAuto *previous1 = previous, *next1 = next;
2907         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2908         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2909         float automation_range = automation_max - automation_min;
2910         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
2911                 automation_range = SPEED_MIN;
2912         for( int x=x1; x<x2; ++x ) {
2913 // Interpolate value between frames
2914                 X_TO_FLOATLINE(x)
2915
2916                 if( /* x > x1 && */ y >= ytop && y < ybot ) {
2917                         int x1 = x-1, y1 = prev_y, x2 = x, y2 = y;
2918                         if( abs(y2-y1) < 2 )
2919                                 draw_pixel(x2, y2);
2920                         else
2921                                 draw_bline(x1, y1, x2, y2);
2922                 }
2923                 prev_y = y;
2924         }
2925 }
2926
2927
2928 int TrackCanvas::test_floatline(int center_pixel,
2929                 FloatAutos *autos,
2930                 double unit_start,
2931                 double zoom_units,
2932                 double yscale,
2933                 int x1,
2934                 int x2,
2935                 int cursor_x,
2936                 int cursor_y,
2937                 int buttonpress,
2938                 int autogrouptype)
2939 {
2940         int result = 0;
2941
2942
2943         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2944         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2945         float automation_range = automation_max - automation_min;
2946         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
2947                 automation_range = SPEED_MIN;
2948         FloatAuto *previous1 = 0, *next1 = 0;
2949         X_TO_FLOATLINE(cursor_x);
2950
2951         if(cursor_x >= x1 &&
2952                 cursor_x < x2 &&
2953                 cursor_y >= y - HANDLE_W / 2 &&
2954                 cursor_y < y + HANDLE_W / 2 &&
2955                 !ctrl_down())
2956         {
2957                 result = 1;
2958
2959 // Menu
2960                 if(buttonpress == 3)
2961                 {
2962                 }
2963                 else
2964 // Create keyframe
2965                 if(buttonpress)
2966                 {
2967                         Auto *current;
2968                         mwindow->undo->update_undo_before();
2969                         double position = autos->track->from_units(position1);
2970                         position = mwindow->edl->align_to_frame(position, 0);
2971                         int64_t new_position = autos->track->to_units(position,0);
2972                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2973                         ((FloatAuto*)current)->set_value(value);
2974                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2975                         mwindow->session->drag_start_position = current->position;
2976                         mwindow->session->drag_origin_x = cursor_x;
2977                         mwindow->session->drag_origin_y = cursor_y;
2978                         mwindow->session->drag_handle = 0;
2979                 }
2980         }
2981
2982
2983         return result;
2984 }
2985
2986 // gang=-1 for keyframepopup update, all tracks where fautos exist
2987 // gang=0 for trackcanvas drag update, all gang matching tracks, create new fautos if needed
2988 // gang=1 for trackcanvas drag update, all gang tracks, create new fautos if needed
2989 void TrackCanvas::fill_ganged_autos(int gang, float change, Track *skip, FloatAuto *fauto)
2990 {
2991         if( !skip->is_ganged() ) return;
2992 // Handles the special case of modifying a fadeauto
2993 // when there are ganged faders on several tracks
2994         double position = skip->from_units(fauto->position);
2995         int autoidx = fauto->autos->autoidx;
2996         PatchGUI *patch = gang < 0 ? pane->patchbay->get_patch_of(skip) : 0;
2997         int edge = patch ? patch->edge : 0;
2998         int span = patch ? patch->span : 0;
2999         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
3000                 if( current == skip || !current->is_armed() ) continue;
3001                 if( !gang && current->data_type != skip->data_type ) continue;
3002                 if( skip->armed_gang(current) || get_double_click() ) {
3003                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
3004                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
3005                         int64_t current_position = current->to_units(position, 1);
3006                         if( keyframe ) {
3007 // keyframe exists, just change it
3008                                 keyframe->bump_update(current_position, change, edge, span);
3009                         }
3010                         else if( gang >= 0 ) {
3011 // create keyframe on neighbouring track at the point in time given by fauto
3012                                 FloatAuto *previous = 0, *next = 0;
3013                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
3014                                 float new_value = value + change;
3015                                 float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
3016                                 float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
3017                                 bclamp(new_value, auto_min, auto_max);
3018                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
3019                                 keyframe->set_value(new_value, edge);
3020                         }
3021                         else
3022                                 continue;
3023                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
3024                 }
3025         }
3026 }
3027
3028 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
3029 {
3030         double position = skip->from_units(fauto->position);
3031 // Move the gangs
3032         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
3033                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
3034                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
3035                 keyframe->bump_update(keyframe_position, change, 0, 0);
3036                 keyframe->set_control_in_value(fauto->get_control_in_value());
3037                 keyframe->set_control_out_value(fauto->get_control_out_value());
3038         }
3039 }
3040
3041 void TrackCanvas::clear_ganged_autos()
3042 {
3043 // remove the gangs
3044         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
3045                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
3046                 keyframe->autos->remove_nonsequential(keyframe);
3047         }
3048         mwindow->session->drag_auto_gang->remove_all();
3049 }
3050
3051
3052 void TrackCanvas::draw_toggleline(int center_pixel,
3053         int x1,
3054         int y1,
3055         int x2,
3056         int y2)
3057 {
3058         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
3059
3060         if(y2 != y1)
3061         {
3062                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
3063         }
3064 }
3065
3066 int TrackCanvas::test_toggleline(Autos *autos,
3067         int center_pixel,
3068         int x1,
3069         int y1,
3070         int x2,
3071         int y2,
3072         int cursor_x,
3073         int cursor_y,
3074         int buttonpress)
3075 {
3076         int result = 0;
3077         if(cursor_x >= x1 && cursor_x < x2)
3078         {
3079                 int miny = center_pixel + y1 - HANDLE_W / 2;
3080                 int maxy = center_pixel + y1 + HANDLE_W / 2;
3081                 if(cursor_y >= miny && cursor_y < maxy)
3082                 {
3083                         result = 1;
3084
3085 // Menu
3086                         if(buttonpress == 3)
3087                         {
3088                         }
3089                         else
3090 // Insert keyframe
3091                         if(buttonpress)
3092                         {
3093                                 Auto *current;
3094                                 double position = (double)(cursor_x +
3095                                                 mwindow->edl->local_session->view_start[pane->number]) *
3096                                         mwindow->edl->local_session->zoom_sample /
3097                                         mwindow->edl->session->sample_rate;
3098                                 int64_t unit_position = autos->track->to_units(position, 0);
3099                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
3100
3101                                 mwindow->undo->update_undo_before();
3102
3103                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
3104                                 ((IntAuto*)current)->value = new_value;
3105                                 // Toggle Autos don't respond to vertical zoom, they always show up
3106                                 // with "on" == 100% == line on top
3107                                 mwindow->session->drag_start_percentage = (float)new_value;
3108                                 mwindow->session->drag_start_position = current->position;
3109                                 mwindow->session->drag_origin_x = cursor_x;
3110                                 mwindow->session->drag_origin_y = cursor_y;
3111                         }
3112                 }
3113         };
3114
3115         return result;
3116 }
3117
3118 void TrackCanvas::calculate_viewport(Track *track,
3119         double &view_start,   // Seconds
3120         double &unit_start,
3121         double &view_end,     // Seconds
3122         double &unit_end,
3123         double &yscale,
3124         int &center_pixel,
3125         double &zoom_sample,
3126         double &zoom_units)
3127 {
3128
3129         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
3130                 mwindow->edl->local_session->zoom_sample /
3131                 mwindow->edl->session->sample_rate;
3132         unit_start = track->to_doubleunits(view_start);
3133         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
3134                 get_w()) *
3135                 mwindow->edl->local_session->zoom_sample /
3136                 mwindow->edl->session->sample_rate;
3137         unit_end = track->to_doubleunits(view_end);
3138
3139         int y = track->y_pixel
3140                         - mwindow->edl->local_session->track_start[pane->number];
3141         int has_titles = track->show_titles();
3142         int has_assets = track->show_assets();
3143         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
3144         double title_h = mwindow->theme->title_h;
3145         double data_h = track->data_h;
3146         double ys = has_assets ? data_h : has_titles ? title_bg_h : 0;
3147         double dy = has_titles ?
3148                 ( has_assets ? title_bg_h + data_h/2 : title_bg_h/2) :
3149                 ( has_assets ? data_h/2 : 0) ;
3150         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
3151         yscale = ys;
3152         center_pixel = y + dy;
3153
3154         zoom_sample = mwindow->edl->local_session->zoom_sample;
3155         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
3156 }
3157
3158 float TrackCanvas::percentage_to_value(float percentage,
3159         int is_toggle,
3160         Auto *reference,
3161         int autogrouptype)
3162 {
3163         float result;
3164         if(is_toggle)
3165         {
3166                 if(percentage > 0.5)
3167                         result = 1;
3168                 else
3169                         result = 0;
3170         }
3171         else
3172         {
3173                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3174                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3175                 float automation_range = automation_max - automation_min;
3176
3177                 result = percentage * automation_range + automation_min;
3178                 if(reference)
3179                 {
3180                         FloatAuto *ptr = (FloatAuto*)reference;
3181                         result -= ptr->get_value();
3182                 }
3183 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
3184         }
3185         return result;
3186 }
3187
3188
3189 void TrackCanvas::calculate_auto_position(int edge, double *x, double *y,
3190         double *in_x, double *in_y, double *out_x, double *out_y,
3191         Auto *current, double unit_start, double zoom_units, double yscale,
3192         int autogrouptype)
3193 {
3194         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3195         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3196         float automation_range = automation_max - automation_min;
3197         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
3198                 automation_range = SPEED_MIN;
3199         FloatAuto *ptr = (FloatAuto*)current;
3200         *x = (double)(ptr->position - unit_start) / zoom_units;
3201         *y = ((ptr->get_value(edge) - automation_min) / automation_range - 0.5) * -yscale;
3202
3203         if(in_x) {
3204 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
3205                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
3206         }
3207
3208         if(in_y) {
3209                 *in_y = (((ptr->get_value(edge) + ptr->get_control_in_value()) -
3210                                 automation_min) / automation_range - 0.5) * -yscale;
3211         }
3212
3213         if(out_x) {
3214 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
3215                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
3216         }
3217
3218         if(out_y) {
3219                 *out_y = (((ptr->get_value(edge) + ptr->get_control_out_value()) -
3220                                  automation_min) / automation_range - 0.5) * -yscale;
3221         }
3222 }
3223
3224
3225 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
3226                 int draw, int buttonpress, int x_offset, int y_offset, int color,
3227                 Auto* &auto_instance, int autogrouptype)
3228 {
3229         int result = 0;
3230         int center_pixel, draw_auto;
3231         double view_start, unit_start;
3232         double view_end, unit_end, yscale;
3233         double zoom_sample, zoom_units;
3234         double slope;
3235         //int skip = 0;
3236
3237         auto_instance = 0;
3238
3239         if(draw) set_color(color);
3240
3241         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3242                         yscale, center_pixel, zoom_sample, zoom_units);
3243
3244 // Get first auto before start
3245         Auto *current = 0, *previous = 0;
3246
3247         for( current = autos->last;
3248                 current && current->position >= unit_start;
3249                 current = PREVIOUS ) ;
3250
3251         Auto *first_auto = current ? current :
3252                  autos->first ? autos->first : autos->default_auto;
3253
3254         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
3255         if( first_auto ) {
3256                 calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0,
3257                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
3258         }
3259         if( current )
3260                 current = NEXT;
3261         else {
3262                 current = autos->first;
3263                 ax = 0;
3264         }
3265
3266         do {
3267                 //skip = 0;
3268                 draw_auto = 1;
3269
3270                 if(current) {
3271                         calculate_auto_position(1, &ax2, &ay2, 0, 0, 0, 0,
3272                                 current, unit_start, zoom_units, yscale, autogrouptype);
3273                 }
3274                 else {
3275                         ax2 = get_w();
3276                         ay2 = ay;
3277                         //skip = 1;
3278                 }
3279
3280                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3281
3282                 if(ax2 > get_w()) {
3283                         draw_auto = 0;
3284                         ax2 = get_w();
3285                         ay2 = ay + slope * (get_w() - ax);
3286                 }
3287
3288                 if(ax < 0) {
3289                         ay = ay + slope * (0 - ax);
3290                         ax = 0;
3291                 }
3292
3293 // Draw or test handle
3294                 if( current && !result && current != autos->default_auto ) {
3295                         if( !draw && track->is_armed() ) {
3296                                 result = test_floatauto((FloatAuto*)current, buttonpress,
3297                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3298                                         unit_start, zoom_units, yscale, autogrouptype);
3299                                 if( result )
3300                                         auto_instance = current;
3301                         }
3302                         if( draw && draw_auto ) {
3303                                 draw_floatauto((FloatAuto*)current, x_offset,
3304                                         (int)center_pixel + y_offset, (int)yscale, color,
3305                                         unit_start, zoom_units, yscale, autogrouptype);
3306                         }
3307                 }
3308
3309 // Draw or test joining line
3310                 if( !draw && !result && track->is_armed() /* && buttonpress != 3 */ ) {
3311                         result = test_floatline(center_pixel,
3312                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3313 // Exclude auto coverage from the end of the line.  The auto overlaps
3314                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3315                                 buttonpress, autogrouptype);
3316                 }
3317                 if( draw )
3318                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3319                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3320                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3321                                 color, autogrouptype);
3322
3323                 if( current ) {
3324                         previous = current;
3325                         calculate_auto_position(0, &ax2, &ay2, 0, 0, 0, 0, previous,
3326                                 unit_start, zoom_units, yscale, autogrouptype);
3327                         current = NEXT;
3328                 }
3329                 ax = ax2;  ay = ay2;
3330         } while( current && current->position <= unit_end && !result );
3331
3332         if( ax < get_w() && !result ) {
3333                 ax2 = get_w();  ay2 = ay;
3334                 if(!draw && track->is_armed() /* && buttonpress != 3 */ ) {
3335                         result = test_floatline(center_pixel,
3336                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3337                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3338                                 buttonpress, autogrouptype);
3339                 }
3340                 if( draw )
3341                         draw_floatline(center_pixel,
3342                                 (FloatAuto*)previous, (FloatAuto*)current,
3343                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3344                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3345                                 color, autogrouptype);
3346         }
3347
3348         return result;
3349 }
3350
3351
3352 int TrackCanvas::do_int_autos(Track *track,
3353                 Autos *autos,
3354                 int cursor_x,
3355                 int cursor_y,
3356                 int draw,
3357                 int buttonpress,
3358                 int x_offset,
3359                 int y_offset,
3360                 int color,
3361                 Auto *&auto_instance)
3362 {
3363         int result = 0;
3364         double view_start;
3365         double unit_start;
3366         double view_end;
3367         double unit_end;
3368         double yscale;
3369         int center_pixel;
3370         double zoom_sample;
3371         double zoom_units;
3372         double ax, ay, ax2, ay2;
3373
3374         auto_instance = 0;
3375
3376         if(draw) set_color(color);
3377
3378         calculate_viewport(track,
3379                 view_start,
3380                 unit_start,
3381                 view_end,
3382                 unit_end,
3383                 yscale,
3384                 center_pixel,
3385                 zoom_sample,
3386                 zoom_units);
3387
3388
3389         double high = -yscale * 0.8 / 2;
3390         double low = yscale * 0.8 / 2;
3391
3392 // Get first auto before start
3393         Auto *current;
3394         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3395                 ;
3396
3397         if(current)
3398         {
3399                 ax = 0;
3400                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3401                 current = NEXT;
3402         }
3403         else
3404         {
3405                 current = autos->first ? autos->first : autos->default_auto;
3406                 if(current)
3407                 {
3408                         ax = 0;
3409                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3410                 }
3411                 else
3412                 {
3413                         ax = 0;
3414                         ay = yscale;
3415                 }
3416         }
3417
3418         do
3419         {
3420                 if(current)
3421                 {
3422                         ax2 = (double)(current->position - unit_start) / zoom_units;
3423                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3424                 }
3425                 else
3426                 {
3427                         ax2 = get_w();
3428                         ay2 = ay;
3429                 }
3430
3431                 if(ax2 > get_w()) ax2 = get_w();
3432
3433                 if(current && !result)
3434                 {
3435                         if(current != autos->default_auto)
3436                         {
3437                                 if(!draw)
3438                                 {
3439                                         if(track->is_armed())
3440                                         {
3441                                                 result = test_auto(current,
3442                                                         (int)ax2,
3443                                                         (int)ay2,
3444                                                         (int)center_pixel,
3445                                                         (int)yscale,
3446                                                         cursor_x,
3447                                                         cursor_y,
3448                                                         buttonpress);
3449                                                 if (result)
3450                                                         auto_instance = current;
3451                                         }
3452                                 }
3453                                 else
3454                                         draw_auto(current,
3455                                                 (int)ax2 + x_offset,
3456                                                 (int)ay2 + y_offset,
3457                                                 (int)center_pixel,
3458                                                 (int)yscale);
3459                         }
3460
3461                         current = NEXT;
3462                 }
3463
3464                 if(!draw)
3465                 {
3466                         if(!result)
3467                         {
3468                                 if(track->is_armed() /* && buttonpress != 3 */)
3469                                 {
3470                                         result = test_toggleline(autos,
3471                                                 center_pixel,
3472                                                 (int)ax,
3473                                                 (int)ay,
3474                                                 (int)ax2,
3475                                                 (int)ay2,
3476                                                 cursor_x,
3477                                                 cursor_y,
3478                                                 buttonpress);
3479                                 }
3480                         }
3481                 }
3482                 else
3483                         draw_toggleline(center_pixel + y_offset,
3484                                 (int)ax,
3485                                 (int)ay,
3486                                 (int)ax2,
3487                                 (int)ay2);
3488
3489                 ax = ax2;
3490                 ay = ay2;
3491         }while(current && current->position <= unit_end && !result);
3492
3493         if(ax < get_w() && !result)
3494         {
3495                 ax2 = get_w();
3496                 ay2 = ay;
3497                 if(!draw)
3498                 {
3499                         if(track->is_armed() /* && buttonpress != 3 */)
3500                         {
3501                                 result = test_toggleline(autos,
3502                                         center_pixel,
3503                                         (int)ax,
3504                                         (int)ay,
3505                                         (int)ax2,
3506                                         (int)ay2,
3507                                         cursor_x,
3508                                         cursor_y,
3509                                         buttonpress);
3510                         }
3511                 }
3512                 else
3513                         draw_toggleline(center_pixel + y_offset,
3514                                 (int)ax,
3515                                 (int)ay,
3516                                 (int)ax2,
3517                                 (int)ay2);
3518         }
3519         return result;
3520 }
3521
3522 int TrackCanvas::do_autos(Track *track,
3523                 Autos *autos,
3524                 int cursor_x,
3525                 int cursor_y,
3526                 int draw,
3527                 int buttonpress,
3528                 BC_Pixmap *pixmap,
3529                 Auto * &auto_instance,
3530                 int &rerender)
3531 {
3532         int result = 0;
3533
3534         double view_start;
3535         double unit_start;
3536         double view_end;
3537         double unit_end;
3538         double yscale;
3539         int center_pixel;
3540         double zoom_sample;
3541         double zoom_units;
3542
3543         calculate_viewport(track,
3544                 view_start,
3545                 unit_start,
3546                 view_end,
3547                 unit_end,
3548                 yscale,
3549                 center_pixel,
3550                 zoom_sample,
3551                 zoom_units);
3552
3553         Auto *current;
3554         auto_instance = 0;
3555
3556         for(current = autos->first; current && !result; current = NEXT)
3557         {
3558                 if(current->position >= unit_start && current->position < unit_end)
3559                 {
3560                         int64_t x, y;
3561                         x = (int64_t)((double)(current->position - unit_start) /
3562                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3563                         y = center_pixel - pixmap->get_h() / 2;
3564
3565                         if(!draw)
3566                         {
3567                                 if(cursor_x >= x && cursor_y >= y &&
3568                                         cursor_x < x + pixmap->get_w() &&
3569                                         cursor_y < y + pixmap->get_h())
3570                                 {
3571                                         result = 1;
3572                                         auto_instance = current;
3573
3574                                         if(buttonpress && (buttonpress != 3))
3575                                         {
3576                                                 mwindow->session->drag_auto = current;
3577                                                 mwindow->session->drag_start_position = current->position;
3578                                                 mwindow->session->drag_origin_x = cursor_x;
3579                                                 mwindow->session->drag_origin_y = cursor_y;
3580
3581                                                 double position = autos->track->from_units(current->position);
3582                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3583                                                         mwindow->edl->local_session->get_selectionend(1)) /
3584                                                         2;
3585
3586                                                 if(!shift_down())
3587                                                 {
3588                                                         mwindow->edl->local_session->set_selectionstart(position);
3589                                                         mwindow->edl->local_session->set_selectionend(position);
3590                                                 }
3591                                                 else
3592                                                 if(position < center)
3593                                                 {
3594                                                         mwindow->edl->local_session->set_selectionstart(position);
3595                                                 }
3596                                                 else
3597                                                         mwindow->edl->local_session->set_selectionend(position);
3598
3599                                                 rerender = 1;
3600                                         }
3601                                 }
3602                         }
3603                         else
3604                                 draw_pixmap(pixmap, x, y);
3605                 }
3606         }
3607
3608
3609         return result;
3610 }
3611
3612 // so this means it is always >0 when keyframe is found
3613 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3614                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3615                 KeyFrame* &keyframe_instance)
3616 {
3617         int result = 0;
3618
3619         double view_start;
3620         double unit_start;
3621         double view_end;
3622         double unit_end;
3623         double yscale;
3624         int center_pixel;
3625         double zoom_sample;
3626         double zoom_units;
3627
3628         if(!track->expand_view) return 0;
3629
3630         calculate_viewport(track,
3631                 view_start,
3632                 unit_start,
3633                 view_end,
3634                 unit_end,
3635                 yscale,
3636                 center_pixel,
3637                 zoom_sample,
3638                 zoom_units);
3639
3640
3641
3642         for(int i = 0; i < track->plugin_set.total && !result; i++)
3643         {
3644                 PluginSet *plugin_set = track->plugin_set.values[i];
3645                 int center_pixel = track->y_pixel -
3646                         mwindow->edl->local_session->track_start[pane->number];
3647                 if( track->show_titles() )
3648                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3649                 if( track->show_assets() )
3650                         center_pixel += track->data_h;
3651                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3652
3653                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3654                         plugin && !result;
3655                         plugin = (Plugin*)plugin->next)
3656                 {
3657                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3658                                 keyframe && !result;
3659                                 keyframe = (KeyFrame*)keyframe->next)
3660                         {
3661 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3662                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3663                                 {
3664                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3665                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3666
3667 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3668                                         if(!draw)
3669                                         {
3670                                                 if(cursor_x >= x && cursor_y >= y &&
3671                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3672                                                         cursor_y < y + keyframe_pixmap->get_h())
3673                                                 {
3674                                                         result = 1;
3675                                                         keyframe_plugin = plugin;
3676                                                         keyframe_instance = keyframe;
3677
3678                                                         if(buttonpress)
3679                                                         {
3680                                                                 mwindow->session->drag_auto = keyframe;
3681                                                                 mwindow->session->drag_start_position = keyframe->position;
3682                                                                 mwindow->session->drag_origin_x = cursor_x;
3683                                                                 mwindow->session->drag_origin_y = cursor_y;
3684
3685                                                                 double position = track->from_units(keyframe->position);
3686                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3687                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3688                                                                         2;
3689
3690                                                                 if(!shift_down())
3691                                                                 {
3692                                                                         mwindow->edl->local_session->set_selectionstart(position);
3693                                                                         mwindow->edl->local_session->set_selectionend(position);
3694                                                                 }
3695                                                                 else
3696                                                                 if(position < center)
3697                                                                 {
3698                                                                         mwindow->edl->local_session->set_selectionstart(position);
3699                                                                 }
3700                                                                 else
3701                                                                         mwindow->edl->local_session->set_selectionend(position);
3702                                                         }
3703                                                 }
3704                                         }
3705                                         else
3706                                                 draw_pixmap(keyframe_pixmap,
3707                                                         x,
3708                                                         y);
3709                                 }
3710                         }
3711                 }
3712         }
3713
3714
3715
3716 //      if(buttonpress && buttonpress != 3 && result)
3717 //      {
3718 //              mwindow->undo->update_undo_before();
3719 //      }
3720
3721         return result;
3722 }
3723
3724 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
3725 {
3726         Track *track = auto_keyframe->autos->track;
3727         int autogrouptype = auto_keyframe->autos->autogrouptype;
3728
3729         int center_pixel;
3730         double view_start, unit_start;
3731         double view_end, unit_end, yscale;
3732         double zoom_sample, zoom_units;
3733
3734         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3735                         yscale, center_pixel, zoom_sample, zoom_units);
3736         if( auto_keyframe->position < unit_start ||
3737             auto_keyframe->position >= unit_end )
3738                 return 0;
3739
3740         double ax = 0, ay = 0;
3741         calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0,
3742                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3743
3744         set_color(color);
3745         draw_line(ax, 0, ax, get_h());
3746
3747         char text[BCSTRLEN];
3748         if( show ) {
3749                 if( auto_keyframe->is_floatauto() ) {
3750                         FloatAuto *float_auto = (FloatAuto *)auto_keyframe;
3751                         sprintf(text, "%0.2f", float_auto->get_value());
3752                 }
3753                 else if( auto_keyframe->is_intauto() ) {
3754                         IntAuto *int_auto = (IntAuto *)auto_keyframe;
3755                         sprintf(text, "%d", int_auto->value);
3756                 }
3757                 else
3758                         show = 0;
3759         }
3760         if( show ) {
3761                 int font = MEDIUMFONT;
3762                 int tw = get_text_width(font, text)  + xS(TOOLTIP_MARGIN) * 2;
3763                 int th = get_text_height(font, text) + yS(TOOLTIP_MARGIN) * 2;
3764                 set_color(get_resources()->tooltip_bg_color);
3765                 ax += HANDLE_W/2;
3766                 ay += center_pixel + HANDLE_W/2;
3767                 draw_box(ax, ay, tw, th);
3768                 set_color(BLACK);
3769                 draw_rectangle(ax, ay, tw, th);
3770                 set_font(font);
3771                 ax += xS(TOOLTIP_MARGIN);
3772                 ay += yS(TOOLTIP_MARGIN) + get_text_ascent(font);
3773                 draw_text(ax, ay, text);
3774         }
3775         return 0;
3776 }
3777
3778 void TrackCanvas::draw_overlays()
3779 {
3780         int new_cursor, update_cursor, rerender;
3781
3782 // Move background pixmap to foreground pixmap
3783         draw_pixmap(background_pixmap, 0, 0, get_w(), get_h(), 0, 0);
3784
3785 // In/Out points
3786         draw_inout_points();
3787
3788 // Transitions
3789         draw_transitions();
3790
3791 // Plugins
3792         draw_plugins();
3793         draw_hard_edges();
3794
3795 // Loop points
3796         draw_loop_points();
3797         draw_brender_range();
3798
3799 // Highlighted areas
3800         draw_highlighting();
3801
3802 // Automation
3803         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3804
3805 // Selection cursor
3806         if(pane->cursor) pane->cursor->restore(1);
3807
3808 // Handle dragging
3809         draw_drag_handle();
3810
3811 // Playback cursor
3812         draw_playback_cursor();
3813
3814         draw_keyframe_reticle();
3815
3816         show_window(0);
3817 }
3818
3819 int TrackCanvas::activate()
3820 {
3821         if(!active)
3822         {
3823 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3824 //BC_Signals::dump_stack();
3825                 get_top_level()->deactivate();
3826                 active = 1;
3827                 set_active_subwindow(this);
3828                 pane->cursor->activate();
3829                 gui->focused_pane = pane->number;
3830         }
3831         return 0;
3832 }
3833
3834 int TrackCanvas::deactivate()
3835 {
3836         if(active)
3837         {
3838                 active = 0;
3839                 pane->cursor->deactivate();
3840         }
3841         return 0;
3842 }
3843
3844
3845 void TrackCanvas::update_drag_handle()
3846 {
3847         double new_position;
3848         int cursor_x = get_cursor_x();
3849
3850         new_position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
3851         new_position = mwindow->edl->align_to_frame(new_position, 0);
3852
3853         if( ctrl_down() && alt_down() ) {
3854 #define snapper(v) do { \
3855         double pos = (v); \
3856         if( pos < 0 ) break; \
3857         double dist = fabs(new_position - pos); \
3858         if( dist >= snap_min ) break; \
3859         snap_position = pos;  snap_min = dist; \
3860 } while(0)
3861                 double snap_position = new_position;
3862                 double snap_min = DBL_MAX;
3863                 if( mwindow->edl->local_session->inpoint_valid() )
3864                         snapper(mwindow->edl->local_session->get_inpoint());
3865                 if( mwindow->edl->local_session->outpoint_valid() )
3866                         snapper(mwindow->edl->local_session->get_outpoint());
3867                 snapper(mwindow->edl->prev_edit(new_position));
3868                 snapper(mwindow->edl->next_edit(new_position));
3869                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3870                 if( prev_label ) snapper(prev_label->position);
3871                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3872                 if( next_label ) snapper(next_label->position);
3873                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3874                         mwindow->edl->local_session->zoom_sample -
3875                         mwindow->edl->local_session->view_start[pane->number];
3876                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3877                         snapped = 1;
3878                         new_position = snap_position;
3879                 }
3880 #undef snapper
3881         }
3882
3883         if(new_position != mwindow->session->drag_position)
3884         {
3885                 mwindow->session->drag_position = new_position;
3886                 gui->mainclock->update(new_position);
3887                 timebar_position = new_position;
3888                 gui->update_timebar(0);
3889
3890                 EDL *edl = new EDL;
3891                 edl->create_objects();
3892                 edl->copy_all(mwindow->edl);
3893                 MainSession *session = mwindow->session;
3894                 int handle_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3895                 edl->modify_edithandles(session->drag_start,
3896                         session->drag_position, session->drag_handle, handle_mode,
3897                         edl->session->labels_follow_edits,
3898                         edl->session->plugins_follow_edits,
3899                         edl->session->autos_follow_edits,
3900                         !session->drag_edit ? 0 : session->drag_edit->group_id);
3901
3902                 double position = -1;
3903                 int show_edge = !session->drag_handle ? 1 : 2;
3904                 switch( handle_mode ) {
3905                 case MOVE_RIPPLE:
3906                 case MOVE_EDGE:
3907                         position = session->drag_handle ?
3908                                 session->drag_position : session->drag_start;
3909                         show_edge = 3 - show_edge;
3910                         break;
3911                 case MOVE_ROLL:
3912                 case MOVE_SLIDE:
3913                         position = session->drag_position;
3914                         break;
3915                 case MOVE_SLIP:
3916                         position = session->drag_start;
3917                         show_edge = 3 - show_edge;
3918                         break;
3919                 }
3920
3921                 if( position < 0 ) position = 0;
3922                 Track *track = session->drag_handle_track();
3923                 int64_t pos = track->to_units(position, 0);
3924                 render_handle_frame(edl, pos, shift_down() ? 0 : show_edge);
3925                 edl->remove_user();
3926         }
3927 }
3928
3929 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3930 {
3931         int result = 0;
3932         int64_t left = pos-1;
3933         if( left < 0 ) left = 0;
3934         switch( mode ) {
3935         case 0: {
3936                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3937                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3938                 TransportCommand command;
3939                 command.command = CURRENT_FRAME;
3940                 command.get_edl()->copy_all((EDL *)edl);
3941                 command.change_type = CHANGE_ALL;
3942                 command.realtime = 0;
3943                 Preferences *preferences = mwindow->preferences;
3944                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3945                 CICache *video_cache = new CICache(preferences);
3946                 render_engine->set_vcache(video_cache);
3947                 render_engine->arm_command(&command);
3948                 VRender *vrender = render_engine->vrender;
3949                 result = vrender &&
3950                         !vrender->process_buffer(&vlt, left, 0) &&
3951                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3952                 delete render_engine;
3953                 video_cache->remove_user();
3954                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3955                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3956                 float ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2;
3957                 canvas->get_transfers(edl, ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2);
3958                 float cw = canvas->w/2, ch = canvas->h/2;
3959                 float cdx = (cx2 - cx1)/2, cdy = (cy2 - cy1)/2;
3960                 int cx = cx1/2, cy = cy1/2 + ch/2;
3961                 int ow = ox2 - ox2, oh = oy2 - oy1;
3962                 BC_WindowBase *window = canvas->get_canvas();
3963                 window->set_color(BLACK);
3964                 window->clear_box(0,0, window->get_w(),window->get_h());
3965                 window->draw_vframe(&vlt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);  cx += cw;
3966                 window->draw_vframe(&vrt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);
3967                 window->flash(1);
3968                 mwindow->cwindow->gui->unlock_window();
3969                 break; }
3970         case 1:
3971         case 2: {
3972                 Track *track = mwindow->session->drag_handle_track();
3973                 double position = track->from_units(mode == 1 ? left : pos);
3974                 if( position < 0 ) position = 0;
3975                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3976                 if( playback_engine->is_playing_back )
3977                         playback_engine->stop_playback(1);
3978                 edl->local_session->set_selectionstart(position);
3979                 edl->local_session->set_selectionend(position);
3980                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3981                 break; }
3982         }
3983         return result;
3984 }
3985
3986 int TrackCanvas::update_drag_edit()
3987 {
3988         int result = 0;
3989
3990
3991
3992         return result;
3993 }
3994
3995 int TrackCanvas::get_drag_values(float *percentage,
3996         int64_t *position,
3997         int do_clamp,
3998         int cursor_x,
3999         int cursor_y,
4000         Auto *current)
4001 {
4002         //int x = cursor_x - mwindow->session->drag_origin_x;
4003         //int y = cursor_y - mwindow->session->drag_origin_y;
4004         *percentage = 0;
4005         *position = 0;
4006
4007         if(!current->autos->track->is_armed()) return 1;
4008         double view_start;
4009         double unit_start;
4010         double view_end;
4011         double unit_end;
4012         double yscale;
4013         int center_pixel;
4014         double zoom_sample;
4015         double zoom_units;
4016
4017         calculate_viewport(current->autos->track,
4018                 view_start,
4019                 unit_start,
4020                 view_end,
4021                 unit_end,
4022                 yscale,
4023                 center_pixel,
4024                 zoom_sample,
4025                 zoom_units);
4026
4027         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
4028                 yscale +
4029                 mwindow->session->drag_start_percentage;
4030         if(do_clamp) CLAMP(*percentage, 0, 1);
4031
4032         *position = Units::to_int64(zoom_units *
4033                 (cursor_x - mwindow->session->drag_origin_x) +
4034                 mwindow->session->drag_start_position + 0.5);
4035
4036         if((do_clamp) && *position < 0) *position = 0;
4037         return 0;
4038 }
4039
4040
4041 #define UPDATE_DRAG_HEAD(do_clamp) \
4042         int result = 0, center_pixel; \
4043         if(!current->autos->track->is_armed()) return 0; \
4044         double view_start, unit_start, view_end, unit_end; \
4045         double yscale, zoom_sample, zoom_units; \
4046  \
4047         calculate_viewport(current->autos->track,  \
4048                 view_start, unit_start, view_end, unit_end, \
4049                 yscale, center_pixel, zoom_sample, zoom_units); \
4050  \
4051         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
4052                 yscale +  mwindow->session->drag_start_percentage; \
4053         if(do_clamp) CLAMP(percentage, 0, 1); \
4054  \
4055         int64_t position = Units::to_int64(zoom_units * \
4056                 (cursor_x - mwindow->session->drag_origin_x) + \
4057                 mwindow->session->drag_start_position); \
4058         if((do_clamp) && position < 0) position = 0;
4059
4060
4061 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
4062 {
4063         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
4064
4065         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
4066         int x = cursor_x - mwindow->session->drag_origin_x;
4067         int y = cursor_y - mwindow->session->drag_origin_y;
4068         float value, old_value;
4069
4070         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
4071 // not really editing the node, rather start editing the curve
4072 // tangent is editable and drag movement is significant
4073                 if( (FloatAuto::FREE == current->curve_mode ||
4074                      FloatAuto::TFREE==current->curve_mode ||
4075                      FloatAuto::BUMP==current->curve_mode) &&
4076                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
4077                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
4078         }
4079
4080         switch(mwindow->session->drag_handle) {
4081         case 0: // Center
4082 // Snap to nearby values
4083                 old_value = current->get_value();
4084                 if(shift_down()) {
4085                         double distance1=-1, distance2=-1;
4086                         if(current->previous) {
4087                                 int autogrouptype = current->previous->autos->autogrouptype;
4088                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4089                                 double value1 = ((FloatAuto*)current->previous)->get_value(0);
4090                                 distance1 = fabs(value - value1);
4091                                 current->set_value(value1, 1);
4092                         }
4093
4094                         if(current->next) {
4095                                 int autogrouptype = current->next->autos->autogrouptype;
4096                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4097                                 double value2 = ((FloatAuto*)current->next)->get_value(1);
4098                                 distance2 = fabs(value - value2);
4099                                 if(!current->previous || distance2 < distance1) {
4100                                         current->set_value(value2, 0);
4101                                 }
4102                         }
4103
4104                         if(!current->previous && !current->next) {
4105                                 current->set_value(((FloatAutos*)current->autos)->default_, 0);
4106                         }
4107                         value = current->get_value();
4108                 }
4109                 else {
4110                         int autogrouptype = current->autos->autogrouptype;
4111                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
4112                 }
4113
4114                 if(alt_down() && !shift_down())
4115 // ALT constrains movement: fixed position, only changing the value
4116                         position = mwindow->session->drag_start_position;
4117
4118                 if(value != old_value || position != current->position) {
4119                         result = 1;
4120                         float change = value - old_value;
4121                         current->adjust_to_new_coordinates(position, value);
4122                         update_ganged_autos(change, current->autos->track, current);
4123                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4124                         show_message(current, color, ", %.2f", current->get_value());
4125                 }
4126                 break;
4127
4128 // In control
4129         case 1: {
4130                 int autogrouptype = current->autos->autogrouptype;
4131                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4132                 if(value != current->get_control_in_value())
4133                 {
4134                         result = 1;
4135                         // note: (position,value) need not be at the location of the ctrl point,
4136                         // but could be somewhere in between on the curve (or even outward or
4137                         // on the opposit side). We set the new control point such as
4138                         // to point the curve through (position,value)
4139                         current->set_control_in_value(
4140                                 value * levered_position(position - current->position,
4141                                                          current->get_control_in_position()));
4142                         update_ganged_autos(0, current->autos->track, current);
4143                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4144                         show_message(current, color, ", %.2f", current->get_control_in_value());
4145                 }
4146                 break; }
4147
4148 // Out control
4149         case 2: {
4150                 int autogrouptype = current->autos->autogrouptype;
4151                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4152                 if(value != current->get_control_out_value()) {
4153                         result = 1;
4154                         current->set_control_out_value(
4155                                 value * levered_position(position - current->position,
4156                                                          current->get_control_out_position()));
4157                         update_ganged_autos(0, current->autos->track, current);
4158                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4159                         show_message(current, color, ", %.2f", current->get_control_out_value());
4160                 }
4161                 break; }
4162         }
4163
4164         return result;
4165 }
4166
4167 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4168 {
4169         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4170
4171         UPDATE_DRAG_HEAD(1);
4172         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4173
4174         if(value != current->value || position != current->position)
4175         {
4176                 result = 1;
4177                 current->value = value;
4178                 current->position = position;
4179                 show_message(current, -1, ", %d", current->value);
4180         }
4181
4182         return result;
4183 }
4184
4185 // Autos which can't change value through dragging.
4186
4187 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4188 {
4189         Auto *current = (Auto*)mwindow->session->drag_auto;
4190
4191         UPDATE_DRAG_HEAD(1)
4192         if(position != current->position)
4193         {
4194                 result = 1;
4195                 current->position = position;
4196                 show_message(current, -1, "");
4197
4198                 double position_f = current->autos->track->from_units(current->position);
4199                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4200                         mwindow->edl->local_session->get_selectionend(1)) /
4201                         2;
4202                 if(!shift_down())
4203                 {
4204                         mwindow->edl->local_session->set_selectionstart(position_f);
4205                         mwindow->edl->local_session->set_selectionend(position_f);
4206                 }
4207                 else
4208                 if(position_f < center_f)
4209                 {
4210                         mwindow->edl->local_session->set_selectionstart(position_f);
4211                 }
4212                 else
4213                         mwindow->edl->local_session->set_selectionend(position_f);
4214         }
4215
4216
4217         return result;
4218 }
4219
4220 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4221 {
4222         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4223
4224         UPDATE_DRAG_HEAD(1)
4225         if(position != current->position)
4226         {
4227 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4228                 Track *track = current->autos->track;
4229                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4230                 PluginSet *pluginset;
4231                 Plugin *plugin = 0;
4232 // figure out the correct pluginset & correct plugin
4233                 int found = 0;
4234                 for(int i = 0; i < track->plugin_set.total; i++)
4235                 {
4236                         pluginset = track->plugin_set.values[i];
4237                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4238                         {
4239                                 KeyFrames *keyframes = plugin->keyframes;
4240                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4241                                         currentkeyframe;
4242                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4243                                 {
4244                                         if (currentkeyframe == current)
4245                                         {
4246                                                 found = 1;
4247                                                 break;
4248                                         }
4249
4250                                 }
4251                                 if (found) break;
4252                         }
4253                         if (found) break;
4254                 }
4255
4256                 mwindow->session->plugin_highlighted = plugin;
4257                 mwindow->session->track_highlighted = track;
4258                 result = 1;
4259                 current->position = position;
4260                 show_message(current, -1, "");
4261
4262                 double position_f = current->autos->track->from_units(current->position);
4263                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4264                         mwindow->edl->local_session->get_selectionend(1)) /
4265                         2;
4266                 if(!shift_down())
4267                 {
4268                         mwindow->edl->local_session->set_selectionstart(position_f);
4269                         mwindow->edl->local_session->set_selectionend(position_f);
4270                 }
4271                 else
4272                 if(position_f < center_f)
4273                 {
4274                         mwindow->edl->local_session->set_selectionstart(position_f);
4275                 }
4276                 else
4277                         mwindow->edl->local_session->set_selectionend(position_f);
4278         }
4279
4280
4281         return result;
4282 }
4283
4284 void TrackCanvas::update_drag_caption()
4285 {
4286         switch(mwindow->session->current_operation)
4287         {
4288                 case DRAG_FADE:
4289
4290                         break;
4291         }
4292 }
4293
4294
4295
4296 int TrackCanvas::cursor_update(int in_motion)
4297 {
4298         int result = 0;
4299         int cursor_x = 0;
4300         int cursor_y = 0;
4301         int update_clock = 0;
4302         int update_zoom = 0;
4303         int update_scroll = 0;
4304         int update_overlay = 0;
4305         int update_cursor = 0;
4306         int rerender = 0;
4307         double position = 0.;
4308 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4309
4310 // Default cursor
4311         int new_cursor =
4312                 arrow_mode() ? ARROW_CURSOR :
4313                 ibeam_mode() ? IBEAM_CURSOR : 0;
4314
4315         switch(mwindow->session->current_operation)
4316         {
4317                 case DRAG_EDITHANDLE1:
4318 // Outside threshold.  Upgrade status
4319                         if( !active ) break;
4320                         if( labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W ) {
4321                                 mwindow->session->current_operation = DRAG_EDITHANDLE2;
4322                                 update_overlay = 1;
4323                         }
4324                         break;
4325                 case DRAG_EDITHANDLE2:
4326                         if( !active ) break;
4327                         update_drag_handle();
4328                         update_overlay = 1;
4329                         break;
4330
4331                 case DRAG_PLUGINHANDLE1:
4332                         if( !active ) break;
4333                         if( labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W ) {
4334                                 mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4335                                 update_overlay = 1;
4336                         }
4337                         break;
4338                 case DRAG_PLUGINHANDLE2:
4339                         if( !active ) break;
4340                         update_drag_handle();
4341                         update_overlay = 1;
4342                         break;
4343
4344                 case DRAG_TRANSNHANDLE1:
4345                         if( !active ) break;
4346                         if( labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W ) {
4347                                 mwindow->session->current_operation = DRAG_TRANSNHANDLE2;
4348                                 update_overlay = 1;
4349                         }
4350                         break;
4351                 case DRAG_TRANSNHANDLE2: {
4352                         if( !active ) break;
4353                         position = mwindow->edl->get_cursor_position(get_cursor_x(), pane->number);
4354                         position = mwindow->edl->align_to_frame(position, 1);
4355                         drag_transition_handle(position);
4356                         rerender = 1;
4357                         update_overlay = 1;
4358                         break; }
4359
4360 // Rubber band curves
4361                 case DRAG_FADE:
4362                 case DRAG_SPEED:
4363                 case DRAG_CZOOM:
4364                 case DRAG_PZOOM:
4365                 case DRAG_CAMERA_X:
4366                 case DRAG_CAMERA_Y:
4367                 case DRAG_CAMERA_Z:
4368                 case DRAG_PROJECTOR_X:
4369                 case DRAG_PROJECTOR_Y:
4370                 case DRAG_PROJECTOR_Z:
4371                         if(active) rerender = update_overlay =
4372                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4373                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4374                                 mwindow->speed_after(!in_motion ? 1 : 0, 0);
4375                         break;
4376
4377                 case DRAG_PLAY:
4378                         if(active) rerender = update_overlay =
4379                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4380                         break;
4381
4382                 case DRAG_MUTE:
4383                         if(active) rerender = update_overlay =
4384                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4385                         break;
4386
4387 // Keyframe icons are sticky
4388                 case DRAG_PAN_PRE:
4389                 case DRAG_MASK_PRE:
4390                 case DRAG_MODE_PRE:
4391                 case DRAG_PLUGINKEY_PRE:
4392                         if(active) {
4393                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4394                                         mwindow->session->current_operation++;
4395                                         update_overlay = 1;
4396
4397                                         mwindow->undo->update_undo_before();
4398                                 }
4399                         }
4400                         break;
4401
4402                 case DRAG_PAN:
4403                 case DRAG_MASK:
4404                 case DRAG_MODE:
4405                         if(active) rerender = update_overlay =
4406                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4407                         break;
4408
4409                 case DRAG_PLUGINKEY:
4410                         if(active) rerender = update_overlay =
4411                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4412                         break;
4413
4414                 case SELECT_REGION:
4415                         if(active) {
4416                                 cursor_x = get_cursor_x();
4417                                 cursor_y = get_cursor_y();
4418                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4419                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4420
4421                                 position = mwindow->edl->align_to_frame(position, 0);
4422                                 position = MAX(position, 0);
4423
4424                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4425                                 double end = mwindow->edl->local_session->get_selectionend(1);
4426                                 if(position < selection_midpoint) {
4427                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4428                                         mwindow->edl->local_session->set_selectionstart(position);
4429                                 }
4430                                 else {
4431                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4432                                         mwindow->edl->local_session->set_selectionend(position);
4433                                 }
4434         // Que the CWindow
4435                                 gui->unlock_window();
4436                                 int dir =
4437                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4438                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4439                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4440                                 gui->lock_window("TrackCanvas::cursor_update 1");
4441         // Update the faders
4442                                 mwindow->update_plugin_guis();
4443                                 gui->update_patchbay();
4444
4445                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4446
4447                                 gui->hide_cursor(0);
4448                                 gui->draw_cursor(1);
4449                                 gui->update_timebar(0);
4450                                 gui->flash_canvas(1);
4451                                 result = 1;
4452                                 update_clock = 1;
4453                                 update_zoom = 1;
4454                                 update_scroll = 1;
4455                         }
4456                         break;
4457
4458                 case DROP_TARGETING:
4459                         new_cursor = GRABBED_CURSOR;
4460                         result = 1;
4461                         break;
4462
4463                 default:
4464                         if(is_event_win() && cursor_inside()) {
4465 // Update clocks
4466                                 cursor_x = get_cursor_x();
4467                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4468                                 position = mwindow->edl->align_to_frame(position, 0);
4469                                 update_clock = 1;
4470 // set all timebars
4471                                 for(int i = 0; i < TOTAL_PANES; i++)
4472                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4473
4474 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4475                                 gui->update_timebar(0);
4476 // Update cursor
4477                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4478                                                 0, new_cursor, update_cursor)) break;
4479                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4480                                         0, 0, new_cursor, update_cursor, rerender)) break;
4481                                 if(do_transition_handles(get_cursor_x(), get_cursor_y(),
4482                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4483                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4484                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4485 // Plugin boundaries
4486                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4487                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4488                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4489                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4490                         }
4491                         break;
4492         }
4493
4494 //printf("TrackCanvas::cursor_update 1\n");
4495         if(update_cursor && new_cursor != get_cursor())
4496         {
4497                 set_cursor(new_cursor, 0, 1);
4498         }
4499
4500 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4501         if(rerender && render_timer->get_difference() > 0.25 ) {
4502                 render_timer->update();
4503                 mwindow->restart_brender();
4504                 mwindow->sync_parameters(CHANGE_PARAMS);
4505                 mwindow->update_plugin_guis();
4506                 gui->unlock_window();
4507                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4508                 gui->lock_window("TrackCanvas::cursor_update 2");
4509         }
4510         if(rerender) {
4511 // Update faders
4512                 gui->update_patchbay();
4513         }
4514
4515
4516         if(update_clock) {
4517                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4518                         gui->mainclock->update(position);
4519         }
4520
4521         if(update_zoom) {
4522                 gui->zoombar->update();
4523         }
4524
4525         if(update_scroll) {
4526                 if(!drag_scroll &&
4527                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4528                         start_dragscroll();
4529                 else
4530                 if(drag_scroll &&
4531                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4532                         stop_dragscroll();
4533         }
4534
4535         if(update_overlay) {
4536                 gui->draw_overlays(1);
4537         }
4538
4539 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4540         return result;
4541 }
4542
4543 int TrackCanvas::cursor_motion_event()
4544 {
4545         return cursor_update(1);
4546 }
4547
4548 void TrackCanvas::start_dragscroll()
4549 {
4550         if(!drag_scroll) {
4551                 drag_scroll = 1;
4552                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4553 //printf("TrackCanvas::start_dragscroll 1\n");
4554         }
4555 }
4556
4557 void TrackCanvas::stop_dragscroll()
4558 {
4559         if(drag_scroll) {
4560                 drag_scroll = 0;
4561                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4562 //printf("TrackCanvas::stop_dragscroll 1\n");
4563         }
4564 }
4565
4566 int TrackCanvas::repeat_event(int64_t duration)
4567 {
4568         if(!drag_scroll) return 0;
4569         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4570
4571         int sample_movement = 0;
4572         int track_movement = 0;
4573         int64_t x_distance = 0;
4574         int64_t y_distance = 0;
4575         double position = 0;
4576         int result = 0;
4577
4578         switch(mwindow->session->current_operation) {
4579                 case SELECT_REGION:
4580 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4581                 if(get_cursor_x() > get_w()) {
4582                                 x_distance = get_cursor_x() - get_w();
4583                                 sample_movement = 1;
4584                 }
4585                 else if(get_cursor_x() < 0) {
4586                         x_distance = get_cursor_x();
4587                         sample_movement = 1;
4588                 }
4589
4590                 if(get_cursor_y() > get_h()) {
4591                         y_distance = get_cursor_y() - get_h();
4592                         track_movement = 1;
4593                 }
4594                 else if(get_cursor_y() < 0) {
4595                         y_distance = get_cursor_y();
4596                         track_movement = 1;
4597                 }
4598                 result = 1;
4599                 break;
4600         }
4601
4602         if(sample_movement) {
4603                 position = (double)(get_cursor_x() +
4604                         mwindow->edl->local_session->view_start[pane->number] +
4605                         x_distance) *
4606                         mwindow->edl->local_session->zoom_sample /
4607                         mwindow->edl->session->sample_rate;
4608                 position = mwindow->edl->align_to_frame(position, 0);
4609                 position = MAX(position, 0);
4610
4611 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4612                 switch(mwindow->session->current_operation) {
4613                 case SELECT_REGION:
4614                         if(position < selection_midpoint) {
4615                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4616                                 mwindow->edl->local_session->set_selectionstart(position);
4617 // Que the CWindow
4618                                 gui->unlock_window();
4619                                 mwindow->cwindow->update(1, 0, 0);
4620                                 gui->lock_window("TrackCanvas::repeat_event");
4621 // Update the faders
4622                                 mwindow->update_plugin_guis();
4623                                 gui->update_patchbay();
4624                         }
4625                         else {
4626                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4627                                 mwindow->edl->local_session->set_selectionend(position);
4628 // Don't que the CWindow
4629                         }
4630                         break;
4631                 }
4632
4633                 mwindow->samplemovement(
4634                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4635                         pane->number);
4636         }
4637
4638         if(track_movement) {
4639                 mwindow->trackmovement(y_distance, pane->number);
4640         }
4641
4642         return result;
4643 }
4644
4645 int TrackCanvas::button_release_event()
4646 {
4647         int redraw = -1, update_overlay = 0;
4648         int result = 0, load_flags = 0;
4649
4650 // printf("TrackCanvas::button_release_event %d\n",
4651 // mwindow->session->current_operation);
4652         if(active) {
4653                 switch(mwindow->session->current_operation) {
4654                 case DRAG_EDITHANDLE2:
4655                         mwindow->session->current_operation = NO_OPERATION;
4656                         drag_scroll = 0;
4657                         result = 1;
4658
4659                         end_edithandle_selection();
4660                         break;
4661
4662                 case DRAG_EDITHANDLE1:
4663                         mwindow->session->current_operation = NO_OPERATION;
4664                         drag_scroll = 0;
4665                         result = 1;
4666                         break;
4667
4668                 case DRAG_PLUGINHANDLE2:
4669                         mwindow->session->current_operation = NO_OPERATION;
4670                         drag_scroll = 0;
4671                         result = 1;
4672
4673                         end_pluginhandle_selection();
4674                         break;
4675
4676                 case DRAG_PLUGINHANDLE1:
4677                         mwindow->session->current_operation = NO_OPERATION;
4678                         drag_scroll = 0;
4679                         result = 1;
4680                         break;
4681
4682                 case DRAG_TRANSNHANDLE2:
4683                         mwindow->session->current_operation = NO_OPERATION;
4684                         drag_scroll = 0;
4685                         result = 1;
4686
4687                         end_transnhandle_selection();
4688                         break;
4689
4690                 case DRAG_TRANSNHANDLE1:
4691                         mwindow->session->current_operation = NO_OPERATION;
4692                         drag_scroll = 0;
4693                         result = 1;
4694                         break;
4695
4696                 case DRAG_SPEED:
4697                         redraw = FORCE_REDRAW;
4698                         load_flags |= LOAD_EDITS | LOAD_TIMEBAR;
4699                 case DRAG_FADE:
4700 // delete the drag_auto_gang first and remove out of order keys
4701                         clear_ganged_autos();
4702                 case DRAG_CZOOM:
4703                 case DRAG_PZOOM:
4704                 case DRAG_PLAY:
4705                 case DRAG_MUTE:
4706                 case DRAG_MASK:
4707                 case DRAG_MODE:
4708                 case DRAG_PAN:
4709                 case DRAG_CAMERA_X:
4710                 case DRAG_CAMERA_Y:
4711                 case DRAG_CAMERA_Z:
4712                 case DRAG_PROJECTOR_X:
4713                 case DRAG_PROJECTOR_Y:
4714                 case DRAG_PROJECTOR_Z:
4715                 case DRAG_PLUGINKEY:
4716                         load_flags |= LOAD_AUTOMATION;
4717                         mwindow->session->current_operation = NO_OPERATION;
4718                         mwindow->session->drag_handle = 0;
4719 // Remove any out-of-order keyframe
4720                         if(mwindow->session->drag_auto) {
4721                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4722                                                 mwindow->session->drag_auto);
4723 //                              mwindow->session->drag_auto->autos->optimize();
4724                                 update_overlay = 1;
4725                         }
4726
4727                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4728                         result = 1;
4729                         break;
4730
4731                 case DRAG_EDIT:
4732                 case DRAG_GROUP:
4733                 case DRAG_AEFFECT_COPY:
4734                 case DRAG_VEFFECT_COPY:
4735 // Trap in drag stop
4736                         break;
4737
4738                 case DROP_TARGETING: {
4739                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4740                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4741                         drag_cursor_motion(cursor_x, cursor_y,
4742                                 &track, &edit, &pluginset, &plugin);
4743                         double position =
4744                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4745                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4746                         mwindow->session->current_operation = NO_OPERATION;
4747                         result = 1;
4748                         break; }
4749
4750                 case GROUP_TOGGLE: {
4751                         Edit *edit = mwindow->session->drag_edit;
4752                         if( edit ) {
4753                                 if( shift_down() && edit->is_selected ) {
4754                                         if( edit->group_id > 0 ) {
4755                                                 mwindow->edl->tracks->clear_selected_edits();
4756                                                 mwindow->edl->tracks->del_group(edit->group_id);
4757                                         }
4758                                         else {
4759                                                 int id = mwindow->session->group_number++;
4760                                                 mwindow->edl->tracks->new_group(id);
4761                                         }
4762                                         redraw = 0;
4763                                 }
4764                                 else {
4765                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4766                                                 mwindow->edl->tracks->clear_selected_edits();
4767                                         edit->set_selected(-1);
4768                                 }
4769                         }
4770                         mwindow->session->current_operation = NO_OPERATION;
4771                         update_overlay = 1;
4772                         result = 1;
4773                         drag_scroll = 0;
4774                         break; }
4775
4776                 default:
4777                         if( mwindow->session->current_operation ) {
4778 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4779 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4780 //                              }
4781
4782                                 mwindow->session->current_operation = NO_OPERATION;
4783                                 drag_scroll = 0;
4784                                 //result = 0;
4785                                 break;
4786                         }
4787                         break;
4788                 }
4789         }
4790
4791         if( mwindow->edl->local_session->zoombar_showautocolor >= 0 )
4792                 mwindow->gui->zoombar->update_autozoom(-1);
4793
4794         if (result)
4795                 cursor_update(0);
4796
4797         if(update_overlay) {
4798                 gui->draw_overlays(1);
4799         }
4800         if(redraw >= 0) {
4801                 gui->draw_canvas(redraw, 0);
4802                 gui->flash_canvas(1);
4803         }
4804         return result;
4805 }
4806
4807 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4808         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4809 {
4810         Edit *edit_result = 0;
4811         int handle_result = -1;
4812         int result = 0;
4813
4814         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4815                 if( track->is_hidden() ) continue;
4816                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4817                         int64_t edit_x, edit_y, edit_w, edit_h;
4818                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4819
4820                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4821                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4822                                 if( cursor_x < edit_x + HANDLE_W ) {
4823                                         edit_result = edit;
4824                                         handle_result = 0;
4825                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4826                                             track->show_assets() ) {
4827                                                 new_cursor = DOWNLEFT_RESIZE;
4828                                                 if( button_press == LEFT_BUTTON )
4829                                                         result = -1;
4830                                         }
4831                                         else
4832                                                 result = 1;
4833                                 }
4834                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4835                                         edit_result = edit;
4836                                         handle_result = 1;
4837                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4838                                             track->show_assets() ) {
4839                                                 new_cursor = DOWNRIGHT_RESIZE;
4840                                                 if( button_press == LEFT_BUTTON )
4841                                                         result = -1;
4842                                         }
4843                                         else
4844                                                 result = 1;
4845                                 }
4846                         }
4847                 }
4848         }
4849
4850         if( result > 0 ) {
4851                 int group_id = edit_result->group_id;
4852                 if( group_id > 0 ) {
4853                         Track *track = edit_result->track;
4854                         Edit *left = 0, *right = 0;
4855                         double start = DBL_MAX, end = DBL_MIN;
4856                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4857                                 if( edit->group_id != group_id ) continue;
4858                                 double edit_start = edit->track->from_units(edit->startproject);
4859                                 if( edit_start < start ) { start = edit_start;  left = edit; }
4860                                 double edit_end = edit->track->from_units(edit->startproject+edit->length);
4861                                 if( edit_end > end ) { end = edit_end;  right = edit; }
4862                         }
4863                         Edit *edit = !handle_result ? left : right;
4864                         if( edit != edit_result )
4865                                 result = 0;
4866                 }
4867         }
4868
4869         update_cursor = 1;
4870         if( result > 0 ) {
4871                 double position = 0;
4872                 if( handle_result == 0 ) {
4873                         position = edit_result->track->from_units(edit_result->startproject);
4874                         new_cursor = LEFT_CURSOR;
4875                 }
4876                 else if( handle_result == 1 ) {
4877                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4878                         new_cursor = RIGHT_CURSOR;
4879                 }
4880
4881 // Reposition cursor
4882                 if( button_press ) {
4883                         mwindow->session->drag_edit = edit_result;
4884                         mwindow->session->drag_handle = handle_result;
4885                         mwindow->session->drag_button = get_buttonpress() - 1;
4886                         mwindow->session->drag_position = position;
4887                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4888                         mwindow->session->drag_origin_x = get_cursor_x();
4889                         mwindow->session->drag_origin_y = get_cursor_y();
4890                         mwindow->session->drag_start = position;
4891
4892                         rerender = start_selection(position);
4893                         update_overlay = 1;
4894                 }
4895         }
4896         else if( result < 0 && !edit_result->silence() ) {
4897                 mwindow->undo->update_undo_before();
4898                 if( !shift_down() ) {
4899                         if( handle_result == 0 )
4900                                 edit_result->hard_left = !edit_result->hard_left;
4901                         else if( handle_result == 1 )
4902                                 edit_result->hard_right = !edit_result->hard_right;
4903                 }
4904                 else {
4905                         int status = handle_result == 0 ? edit_result->hard_left :
4906                                      handle_result == 1 ? edit_result->hard_right : 0;
4907                         int new_status = !status;
4908                         int64_t edit_edge = edit_result->startproject;
4909                         if( handle_result == 1 ) edit_edge += edit_result->length;
4910                         double edge_position = edit_result->track->from_units(edit_edge);
4911                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4912                                 if( track->is_hidden() ) continue;
4913                                 int64_t track_position = track->to_units(edge_position, 1);
4914                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4915                                 if( left_edit ) {
4916                                         int64_t left_edge = left_edit->startproject;
4917                                         double left_position = track->from_units(left_edge);
4918                                         if( EQUIV(edge_position, left_position) ) {
4919                                                 left_edit->hard_left = new_status;
4920                                                 if( left_edit->previous )
4921                                                         left_edit->previous->hard_right = new_status;
4922                                         }
4923                                 }
4924                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4925                                 if( right_edit ) {
4926                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4927                                         double right_position = track->from_units(right_edge);
4928                                         if( EQUIV(edge_position, right_position) ) {
4929                                                 right_edit->hard_right = new_status;
4930                                                 if( right_edit->next )
4931                                                         right_edit->next->hard_left = new_status;
4932                                         }
4933                                 }
4934                         }
4935                 }
4936                 rerender = update_overlay = 1;
4937                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4938                 result = 1;
4939         }
4940
4941         return result;
4942 }
4943
4944 int TrackCanvas::do_plugin_handles(int cursor_x,
4945         int cursor_y,
4946         int button_press,
4947         int &rerender,
4948         int &update_overlay,
4949         int &new_cursor,
4950         int &update_cursor)
4951 {
4952         Plugin *plugin_result = 0;
4953         int handle_result = 0;
4954         int result = 0;
4955
4956         for(Track *track = mwindow->edl->tracks->first;
4957                 track && !result;
4958                 track = track->next) {
4959                 if( track->is_hidden() ) continue;
4960                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4961                         PluginSet *plugin_set = track->plugin_set.values[i];
4962                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4963                                 plugin && !result;
4964                                 plugin = (Plugin*)plugin->next) {
4965                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4966                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4967
4968                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4969                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4970                                         if(cursor_x < plugin_x + HANDLE_W) {
4971                                                 plugin_result = plugin;
4972                                                 handle_result = 0;
4973                                                 result = 1;
4974                                         }
4975                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4976                                                 plugin_result = plugin;
4977                                                 handle_result = 1;
4978                                                 result = 1;
4979                                         }
4980                                 }
4981                         }
4982
4983                         if(result && shift_down())
4984                                 mwindow->session->trim_edits = plugin_set;
4985                 }
4986         }
4987
4988         update_cursor = 1;
4989         if(result) {
4990                 double position = 0;
4991                 if(handle_result == 0) {
4992                         position = plugin_result->track->from_units(plugin_result->startproject);
4993                         new_cursor = LEFT_CURSOR;
4994                 }
4995                 else if(handle_result == 1) {
4996                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4997                         new_cursor = RIGHT_CURSOR;
4998                 }
4999
5000                 if(button_press) {
5001                         mwindow->session->drag_plugin = plugin_result;
5002                         mwindow->session->drag_handle = handle_result;
5003                         mwindow->session->drag_button = get_buttonpress() - 1;
5004                         mwindow->session->drag_position = position;
5005                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
5006                         mwindow->session->drag_origin_x = get_cursor_x();
5007                         mwindow->session->drag_origin_y = get_cursor_y();
5008                         mwindow->session->drag_start = position;
5009
5010                         rerender = start_selection(position);
5011                         update_overlay = 1;
5012                 }
5013         }
5014
5015         return result;
5016 }
5017
5018 int TrackCanvas::do_transition_handles(int cursor_x, int cursor_y, int button_press,
5019                 int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
5020 {
5021         Transition *trans_result = 0;
5022         int result = 0;
5023
5024         Track *track = mwindow->edl->tracks->first;
5025         for( ; track && !result; track=track->next) {
5026                 if( track->is_hidden() ) continue;
5027                 Edit *edit = track->edits->first;
5028                 for( ; edit && !result; edit=edit->next ) {
5029                         Transition *trans = edit->transition;
5030                         if( !trans ) continue;
5031                         int64_t x, y, w, h;
5032                         edit_dimensions(edit, x, y, w, h);
5033                         int strip_x = x, edit_y = y;
5034                         get_transition_coords(edit, x, y, w, h);
5035                         VFrame *strip = mwindow->theme->get_image("plugin_bg_data");
5036                         int strip_y = y - strip->get_h();
5037                         if( track->show_assets() && track->show_titles() )
5038                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
5039                         if( strip_y < edit_y ) strip_y = edit_y;
5040                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
5041                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
5042                         int x1 = strip_x + strip_w - HANDLE_W/2, x2 = x1 + HANDLE_W;
5043                         int y1 = strip_y + strip->get_h()/2 - HANDLE_H/2, y2 = y1 + HANDLE_W;
5044                         if( cursor_x >= x1 && cursor_x < x2 &&
5045                             cursor_y >= y1 && cursor_y < y2 ) {
5046                                 trans_result = trans;
5047                                 result = 1;
5048                         }
5049                 }
5050         }
5051
5052         if( result ) {
5053                 if( button_press ) {
5054                         mwindow->session->drag_transition = trans_result;
5055                         mwindow->session->drag_handle = 1;
5056                         mwindow->session->drag_button = get_buttonpress() - 1;
5057                         int64_t trans_end = trans_result->edit->startproject + trans_result->length;
5058                         double position = trans_result->edit->track->from_units(trans_end);
5059                         mwindow->session->drag_position = position;
5060                         mwindow->session->drag_start = position;
5061                         mwindow->session->current_operation = DRAG_TRANSNHANDLE1;
5062                         mwindow->session->drag_origin_x = get_cursor_x();
5063                         mwindow->session->drag_origin_y = get_cursor_y();
5064                         update_cursor = 1;
5065                 }
5066                 new_cursor = RIGHT_CURSOR;
5067                 update_overlay = 1;
5068         }
5069
5070         return result;
5071 }
5072
5073 int TrackCanvas::drag_transition_handle(double position)
5074 {
5075         Transition *transition = mwindow->session->drag_transition;
5076         if( !transition ) return 1;
5077         mwindow->session->drag_position = position;
5078         mwindow->edl->local_session->set_selectionstart(position);
5079         mwindow->edl->local_session->set_selectionend(position);
5080         char string[BCSTRLEN];
5081         int64_t length = transition->length;
5082         Track *track = transition->edit->track;
5083         int64_t start_pos = track->to_units(mwindow->session->drag_start, 0);
5084         int64_t end_pos = track->to_units(mwindow->session->drag_position, 0);
5085         length += end_pos - start_pos;
5086         if( length < 0 ) length = 0;
5087         double time = track->from_units(length);
5088         Units::totext(string, time,
5089                 mwindow->edl->session->time_format,
5090                 mwindow->edl->session->sample_rate,
5091                 mwindow->edl->session->frame_rate,
5092                 mwindow->edl->session->frames_per_foot);
5093         mwindow->gui->show_message(string);
5094         if( mwindow->gui->transition_menu->length_thread->running() ) {
5095                 TransitionLengthDialog *dialog = (TransitionLengthDialog *)
5096                          mwindow->gui->transition_menu->length_thread->get_gui();
5097                 if( dialog ) {
5098                         dialog->lock_window("TrackCanvas::drag_transition_handle");
5099                         dialog->update_text(time);
5100                         dialog->thread->new_length = time;
5101                         dialog->unlock_window();
5102                 }
5103         }
5104         return 0;
5105 }
5106
5107
5108 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
5109 {
5110         int result = 0;
5111
5112         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
5113         drag_cursor_motion(cursor_x, cursor_y,
5114                 &track, &edit, &pluginset, &plugin);
5115
5116         if( button_press && track ) {
5117                 switch( get_buttonpress() ) {
5118                 case RIGHT_BUTTON: {
5119                         double position =
5120                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
5121                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
5122                         mwindow->session->current_operation = NO_OPERATION;
5123                         result = 1;
5124                         break; }
5125                 case MIDDLE_BUTTON:
5126                         set_cursor(GRABBED_CURSOR, 0, 1);
5127                         mwindow->session->current_operation = DROP_TARGETING;
5128                         result = 1;
5129                         break;
5130                 }
5131         }
5132
5133         return result;
5134 }
5135
5136 int TrackCanvas::arrow_mode()
5137 {
5138         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
5139 }
5140 int TrackCanvas::ibeam_mode()
5141 {
5142         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
5143 }
5144
5145 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
5146         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
5147 {
5148         int result = 0;
5149
5150         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
5151                 if( track->is_hidden() ) continue;
5152                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
5153                         int64_t edit_x, edit_y, edit_w, edit_h;
5154                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
5155
5156 // Cursor inside a track
5157 // Cursor inside an edit
5158                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
5159                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
5160                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
5161                                         if( get_double_click() ) {
5162                                                 mwindow->edl->tracks->clear_selected_edits();
5163                                                 edit->select_affected_edits(1, -1);
5164                                                 double start = edit->track->from_units(edit->startproject);
5165                                                 start = mwindow->edl->align_to_frame(start, 0);
5166                                                 mwindow->edl->local_session->set_selectionstart(start);
5167                                                 double end = edit->track->from_units(edit->startproject+edit->length);
5168                                                 end = mwindow->edl->align_to_frame(end, 0);
5169                                                 mwindow->edl->local_session->set_selectionend(end);
5170                                                 result = 1; // Select edit duration or select_region
5171                                         }
5172                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
5173                                                 mwindow->session->drag_edit = edit;
5174                                                 mwindow->session->current_operation = GROUP_TOGGLE;
5175                                                 result = 1;
5176                                         }
5177                                         if( result ) {
5178                                                 rerender = 1;
5179                                                 update_cursor = -1;
5180                                         }
5181                                 }
5182                                 else if( drag_start && track->is_armed() ) {
5183                                         mwindow->session->drag_edit = edit;
5184                                         mwindow->session->drag_origin_x = cursor_x;
5185                                         mwindow->session->drag_origin_y = cursor_y;
5186 // Where the drag started, so we know relative position inside the edit later
5187                                         mwindow->session->drag_position =
5188                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
5189                                         drag_start = 0; // if unselected "fast" drag
5190                                         if( !edit->silence() && !edit->is_selected ) {
5191                                                 mwindow->edl->tracks->clear_selected_edits();
5192                                                 if( ibeam_mode() ) {
5193                                                         double start = edit->track->from_units(edit->startproject);
5194                                                         mwindow->edl->local_session->set_selectionstart(start);
5195                                                         mwindow->edl->local_session->set_selectionend(start);
5196                                                         edit->set_selected(1);
5197                                                 }
5198                                                 else
5199                                                         edit->select_affected_edits(1, -1);
5200                                                 drag_start = 1;
5201                                         }
5202 // Construct list of all affected edits
5203                                         if( drag_start || ibeam_mode() ) {
5204                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
5205                                                 if( mwindow->session->drag_edits->size() > 0 ) {
5206                                                         mwindow->session->current_operation = DRAG_EDIT;
5207 // Need to create drag window
5208                                                         int cx, cy;  get_abs_cursor(cx, cy);
5209                                                         gui->drag_popup = new BC_DragWindow(gui,
5210                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
5211                                                         result = 1;
5212                                                 }
5213                                                 else {
5214                                                         rerender = start_selection(mwindow->session->drag_position);
5215                                                         mwindow->session->current_operation = SELECT_REGION;
5216                                                         update_cursor = 1;
5217                                                 }
5218                                         }
5219                                         else if( edit->is_selected && arrow_mode() ) {
5220                                                 if( mwindow->session->drag_group )
5221                                                         mwindow->session->drag_group->remove_user();
5222                                                 double start_position = 0;
5223                                                 mwindow->session->drag_group =
5224                                                         mwindow->edl->selected_edits_to_clip(0, &start_position,
5225                                                                 &mwindow->session->drag_group_first_track);
5226                                                 if( mwindow->session->drag_group ) {
5227                                                         mwindow->session->current_operation = DRAG_GROUP;
5228                                                         mwindow->session->drag_group_position = start_position;
5229                                                         mwindow->session->drag_group_edit = edit;
5230                                                         mwindow->session->drag_origin_y = edit_y;
5231                                                         result = 1;
5232                                                 }
5233                                         }
5234                                 }
5235                         }
5236                 }
5237         }
5238         return result;
5239 }
5240
5241 // returns -1=doesnt fit, 1=fits, 0=fits but overwrites
5242 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
5243 {
5244         int intersects = 0;
5245         Track *src = group->tracks->first;
5246         for( Track *track=first_track; track && src; track=track->next ) {
5247                 if( !track->is_armed() ) return -1;
5248                 if( src->data_type != track->data_type ) return -1;
5249                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
5250                         if( src_edit->silence() ) continue;
5251                         if( !intersects && edit_intersects(track, src_edit, pos) )
5252                                 intersects = 1;
5253                 }
5254                 src = src->next;
5255         }
5256         return src ? -1 : !intersects ? 1 : 0;
5257 }
5258
5259 int TrackCanvas::edit_intersects(Track *track, Edit *src_edit, double &pos)
5260 {
5261         if( pos < 0 ) { pos = 0;  return 1; }
5262         int pane_no = pane->number;
5263         int cur_pix = track->edl->get_position_cursorx(pos, pane_no);
5264         int64_t src_start = src_edit->startproject;
5265         int64_t src_end = src_start + src_edit->length;
5266         double new_start = src_edit->track->from_units(src_start) + pos;
5267         double new_end = src_edit->track->from_units(src_end) + pos;
5268         int64_t trk_start = track->to_units(new_start, 1);
5269         int64_t trk_end = track->to_units(new_end, 1);
5270         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
5271                 if( edit->is_selected || edit->silence() ) continue;
5272                 int64_t edit_start = edit->startproject;
5273                 if( edit_start >= trk_end ) continue;
5274                 int64_t edit_end = edit_start + edit->length;
5275                 if( trk_start >= edit_end ) continue;
5276
5277                 int64_t lt_dist = labs(trk_end - edit_start);
5278                 int64_t rt_dist = labs(edit_end - trk_start);
5279                 int64_t position;
5280                 if( lt_dist < rt_dist ) {
5281                         position = edit_start;
5282                         lt_dist = abs(trk_start - edit_start);
5283                         rt_dist = abs(trk_end - edit_start);
5284                         if( lt_dist > rt_dist )
5285                                 position -= src_end;
5286                 }
5287                 else {
5288                         position = edit_end;
5289                         lt_dist = abs(trk_start - edit_end);
5290                         rt_dist = abs(trk_end - edit_end);
5291                         if( lt_dist > rt_dist )
5292                                 position -= src_end;
5293                 }
5294                 double new_pos = edit->track->from_units(position);
5295                 int new_pix = track->edl->get_position_cursorx(new_pos, pane_no);
5296                 if( abs(new_pix-cur_pix) < HANDLE_W )
5297                         pos = new_pos;
5298                 return 1;
5299         }
5300         return 0;
5301 }
5302
5303 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5304 {
5305         return 0;
5306 }
5307
5308 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5309         int button_press, int &redraw, int &rerender)
5310 {
5311         Plugin *plugin = 0;
5312         int result = 0;
5313         int done = 0;
5314         int64_t x, y, w, h;
5315         Track *track = 0;
5316
5317         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5318                 if(!track->expand_view) continue;
5319
5320                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5321                         // first check if plugins are visible at all
5322                         if (!track->expand_view)
5323                                 continue;
5324                         PluginSet *plugin_set = track->plugin_set.values[i];
5325                         for(plugin = (Plugin*)plugin_set->first;
5326                                 plugin && !done;
5327                                 plugin = (Plugin*)plugin->next) {
5328                                 plugin_dimensions(plugin, x, y, w, h);
5329                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5330                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5331                                         if(cursor_x >= x && cursor_x < x + w &&
5332                                                 cursor_y >= y && cursor_y < y + h) {
5333                                                 done = 1;
5334                                                 break;
5335                                         }
5336                                 }
5337                         }
5338                 }
5339         }
5340
5341         if(plugin) {
5342 // Start plugin popup
5343                 if(button_press) {
5344                         if(get_buttonpress() == RIGHT_BUTTON ) {
5345                                 gui->plugin_menu->update(plugin);
5346                                 gui->plugin_menu->activate_menu();
5347                                 result = 1;
5348                         }
5349                         else if (get_double_click() && !drag_start) {
5350 // Select range of plugin on doubleclick over plugin
5351                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5352                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5353                                         plugin->track->from_units(plugin->length));
5354                                 if(mwindow->edl->session->cursor_on_frames) {
5355                                         mwindow->edl->local_session->set_selectionstart(
5356                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5357                                         mwindow->edl->local_session->set_selectionend(
5358                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5359                                 }
5360                                 rerender = 1;
5361                                 redraw = 1;
5362                                 result = 1;
5363                         }
5364                 }
5365                 else
5366 // Move plugin
5367                 if( drag_start && plugin->track->is_armed() && !plugin->silence() ) {
5368                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5369                                 if( plugin->track->data_type == TRACK_AUDIO )
5370                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5371                                 else if( plugin->track->data_type == TRACK_VIDEO )
5372                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5373
5374                                 mwindow->session->drag_plugin = plugin;
5375                                 mwindow->session->drag_origin_x = cursor_x;
5376                                 mwindow->session->drag_origin_y = cursor_y;
5377                                 // Where the drag started, so we know relative position inside the edit later
5378                                 mwindow->session->drag_position =
5379                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5380                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5381 // Create picon
5382                                 switch(plugin->plugin_type) {
5383                                 case PLUGIN_STANDALONE: {
5384                                         PluginServer *server =
5385                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5386                                         if( !server ) break;
5387                                         VFrame *frame = server->picon;
5388                                         if(!frame) {
5389                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5390                                                         frame = mwindow->theme->get_image("aeffect_icon");
5391                                                 }
5392                                                 else {
5393                                                         frame = mwindow->theme->get_image("veffect_icon");
5394                                                 }
5395                                         }
5396                                         int cx, cy;
5397                                         get_abs_cursor(cx, cy);
5398                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5399                                                 break; }
5400
5401                                 case PLUGIN_SHAREDPLUGIN:
5402                                 case PLUGIN_SHAREDMODULE: {
5403                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5404                                         int cx, cy;
5405                                         get_abs_cursor(cx, cy);
5406                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5407                                         break; }
5408                                 }
5409
5410                                 result = 1;
5411                         }
5412                 }
5413         }
5414
5415         return result;
5416 }
5417
5418 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5419         int button_press, int &new_cursor, int &update_cursor)
5420 {
5421         Transition *transition = 0;
5422         int result = 0;
5423         int64_t x, y, w, h;
5424
5425
5426         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5427                 if( track->is_hidden() ) continue;
5428                 if( !track->show_transitions() ) continue;
5429
5430                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5431                         if( edit->transition ) {
5432                                 edit_dimensions(edit, x, y, w, h);
5433                                 get_transition_coords(edit, x, y, w, h);
5434
5435                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5436                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5437                                         if( cursor_x >= x && cursor_x < x + w &&
5438                                                 cursor_y >= y && cursor_y < y + h ) {
5439                                                 transition = edit->transition;
5440                                                 result = 1;
5441                                                 break;
5442                                         }
5443                                 }
5444                         }
5445                 }
5446         }
5447
5448         update_cursor = 1;
5449         if(transition) {
5450                 if(!button_press) {
5451                         new_cursor = UPRIGHT_ARROW_CURSOR;
5452                 }
5453                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5454                         gui->transition_menu->update(transition);
5455                         gui->transition_menu->activate_menu();
5456                 }
5457         }
5458
5459         return result;
5460 }
5461
5462 int TrackCanvas::button_press_event()
5463 {
5464         int result = 0;
5465         int cursor_x, cursor_y;
5466         int new_cursor;
5467
5468         cursor_x = get_cursor_x();
5469         cursor_y = get_cursor_y();
5470         mwindow->session->trim_edits = 0;
5471
5472         if(is_event_win() && cursor_inside()) {
5473 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5474
5475                 result = 1;
5476                 if(!active) {
5477                         activate();
5478                 }
5479
5480                 if( get_buttonpress() == LEFT_BUTTON ) {
5481                         gui->stop_transport("TrackCanvas::button_press_event");
5482                 }
5483
5484                 int update_overlay = 0, update_cursor = 0, rerender = 0, update_message = 0;
5485
5486                 if(get_buttonpress() == WHEEL_UP) {
5487                         if(shift_down())
5488                                 mwindow->expand_sample();
5489                         else if(ctrl_down())
5490                                 mwindow->move_left(get_w()/ 10);
5491                         else
5492                                 mwindow->move_up(get_h() / 10);
5493                 }
5494                 else if(get_buttonpress() == WHEEL_DOWN) {
5495                         if(shift_down())
5496                                 mwindow->zoom_in_sample();
5497                         else if(ctrl_down())
5498                                 mwindow->move_right(get_w() / 10);
5499                         else
5500                                 mwindow->move_down(get_h() / 10);
5501                 }
5502                 else if(get_buttonpress() == 6) {
5503                         if(ctrl_down())
5504                                 mwindow->move_left(get_w());
5505                         else if(alt_down())
5506                                 mwindow->move_left(get_w() / 20);
5507                         else
5508                                 mwindow->move_left(get_w() / 5);
5509                 }
5510                 else if(get_buttonpress() == 7) {
5511                         if(ctrl_down())
5512                                 mwindow->move_right(get_w());
5513                         else if(alt_down())
5514                                 mwindow->move_right(get_w() / 20);
5515                         else
5516                                 mwindow->move_right(get_w() / 5);
5517                 }
5518                 else {
5519                         if( arrow_mode() ) do {
5520 // Test handles and resource boundaries and highlight a track
5521                                 if( do_transitions(cursor_x, cursor_y,
5522                                                 1, new_cursor, update_cursor) ) break;
5523
5524                                 if( do_keyframes(cursor_x, cursor_y,
5525                                         0, get_buttonpress(), new_cursor,
5526                                         update_cursor, rerender) ) break;
5527                                 update_message = 1;
5528
5529                                 if( do_transition_handles(cursor_x, cursor_y,
5530                                         1, rerender, update_overlay, new_cursor,
5531                                         update_cursor) ) break;
5532 // Test edit boundaries
5533                                 if( do_edit_handles(cursor_x, cursor_y,
5534                                         1, rerender, update_overlay, new_cursor,
5535                                         update_cursor) ) break;
5536 // Test plugin boundaries
5537                                 if( do_plugin_handles(cursor_x, cursor_y,
5538                                         1, rerender, update_overlay, new_cursor,
5539                                         update_cursor) ) break;
5540
5541                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5542                                         update_overlay, rerender, new_cursor,
5543                                         update_cursor) ) break;
5544
5545                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5546                                         update_cursor, rerender) ) break;
5547
5548                                 if( test_resources(cursor_x, cursor_y) ) break;
5549
5550                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5551
5552                                 result = 0;
5553                         } while(0);
5554                         else if( ibeam_mode() ) do {
5555 // Test handles only and select a region
5556                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5557 //printf("TrackCanvas::button_press_event %d\n", position);
5558
5559                                 if( do_transitions(cursor_x, cursor_y,
5560                                                 1, new_cursor, update_cursor)) break;
5561                                 if(do_keyframes(cursor_x, cursor_y,
5562                                         0, get_buttonpress(), new_cursor,
5563                                         update_cursor, rerender)) {
5564                                         update_overlay = 1;
5565                                         break;
5566                                 }
5567                                 update_message = 1;
5568                                 if( do_transition_handles(cursor_x, cursor_y,
5569                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5570 // Test edit boundaries
5571                                 if( do_edit_handles(cursor_x, cursor_y,
5572                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5573 // Test plugin boundaries
5574                                 if( do_plugin_handles(cursor_x, cursor_y,
5575                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5576
5577                                 if( do_edits(cursor_x, cursor_y,
5578                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5579
5580                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5581
5582                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5583 // Highlight selection
5584                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5585                                 rerender = start_selection(position);
5586                                 mwindow->session->current_operation = SELECT_REGION;
5587                                 update_cursor = 1;
5588                         } while(0);
5589                 }
5590
5591                 if( rerender ) {
5592                         gui->unlock_window();
5593                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5594                         gui->lock_window("TrackCanvas::button_press_event 2");
5595 // Update faders
5596                         mwindow->update_plugin_guis();
5597                         gui->update_patchbay();
5598                 }
5599
5600                 if( update_message )
5601                         gui->default_message();
5602
5603                 if( update_overlay )
5604                         gui->draw_overlays(1);
5605
5606                 if( update_cursor < 0 ) {
5607 // double_click edit
5608                         gui->swindow->update_selection();
5609                         gui->draw_canvas(0, 0);
5610                 }
5611                 if( update_cursor ) {
5612                         gui->update_timebar(0);
5613                         gui->hide_cursor(0);
5614                         gui->show_cursor(1);
5615                         gui->zoombar->update();
5616                         gui->flash_canvas(1);
5617                 }
5618         }
5619
5620         return result;
5621 }
5622
5623 int TrackCanvas::start_selection(double position)
5624 {
5625         int rerender = 0;
5626         position = mwindow->edl->align_to_frame(position, 1);
5627
5628
5629 // Extend a border
5630         if(shift_down())
5631         {
5632                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5633                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5634
5635                 if(position < midpoint)
5636                 {
5637                         mwindow->edl->local_session->set_selectionstart(position);
5638                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5639 // Que the CWindow
5640                         rerender = 1;
5641                 }
5642                 else
5643                 {
5644                         mwindow->edl->local_session->set_selectionend(position);
5645                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5646 // Don't que the CWindow for the end
5647                 }
5648         }
5649         else
5650 // Start a new selection
5651         {
5652 //printf("TrackCanvas::start_selection %f\n", position);
5653                 mwindow->edl->local_session->set_selectionstart(position);
5654                 mwindow->edl->local_session->set_selectionend(position);
5655                 selection_midpoint = position;
5656 // Que the CWindow
5657                 rerender = 1;
5658         }
5659
5660         return rerender;
5661 }
5662
5663 void TrackCanvas::end_edithandle_selection()
5664 {
5665         mwindow->modify_edithandles();
5666         mwindow->session->drag_edit = 0;
5667 }
5668
5669 void TrackCanvas::end_pluginhandle_selection()
5670 {
5671         mwindow->modify_pluginhandles();
5672         mwindow->session->drag_plugin = 0;
5673 }
5674
5675 void TrackCanvas::end_transnhandle_selection()
5676 {
5677         mwindow->modify_transnhandles();
5678         mwindow->session->drag_transition = 0;
5679 }
5680
5681
5682 double TrackCanvas::time_visible()
5683 {
5684         return (double)get_w() *
5685                 mwindow->edl->local_session->zoom_sample /
5686                 mwindow->edl->session->sample_rate;
5687 }
5688
5689
5690 void TrackCanvas::show_message(Auto *current, int box_color, const char *fmt, ...)
5691 {
5692         char string[BCTEXTLEN];
5693         char *cp = string, *ep = cp + sizeof(string)-1;
5694         if( box_color >= 0 ) {
5695                 cp += snprintf(string, ep-cp, "%-8s ",
5696                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5697         }
5698         char string2[BCTEXTLEN];
5699         Units::totext(string2,
5700                 current->autos->track->from_units(current->position),
5701                 mwindow->edl->session->time_format,
5702                 mwindow->edl->session->sample_rate,
5703                 mwindow->edl->session->frame_rate,
5704                 mwindow->edl->session->frames_per_foot);
5705         cp += snprintf(cp, ep-cp, "%s", string2);
5706         va_list ap;
5707         va_start(ap, fmt);
5708         vsnprintf(cp, ep-cp, fmt, ap);
5709         va_end(ap);
5710         gui->show_message(string, -1, box_color);
5711 }
5712
5713 // Patchbay* TrackCanvas::get_patchbay()
5714 // {
5715 //      if(pane->patchbay) return pane->patchbay;
5716 //      if(gui->total_panes() == 2 &&
5717 //              gui->pane[TOP_LEFT_PANE] &&
5718 //              gui->pane[TOP_RIGHT_PANE])
5719 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5720 //      if(gui->total_panes() == 4)
5721 //      {
5722 //              if(pane->number == TOP_RIGHT_PANE)
5723 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5724 //              else
5725 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5726 //      }
5727 //
5728 //      return 0;
5729 // }
5730
5731