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         }
1662
1663         if( draw_box )
1664                 draw_highlight_rectangle(x, y, w, h);
1665
1666         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1667 }
1668
1669 // x does not reliably draw a really big rectangle
1670 void TrackCanvas::draw_selected(int x, int y, int w, int h)
1671 {
1672         int x1 = bmax(x, 0), x2 = bmin(x+w, get_w());
1673         if( x1 > x2 ) return;
1674         int y1 = bmax(y, 0), y2 = bmin(y+h, get_h());
1675         if( y1 > y2 ) return;
1676         if( x   >= 0 && x   < get_w() ) draw_line(x,y1,   x,y2);
1677         if( x+w >= 0 && x+w < get_w() ) draw_line(x+w,y1, x+w,y2);
1678         if( y   >= 0 && y   < get_h() ) draw_line(x1,y,   x2,y);
1679         if( y+h >= 0 && y+h < get_h() ) draw_line(x1,y+h, x2,y+h);
1680 }
1681
1682 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1683 {
1684         int dropping = 0;
1685         for( Track *track=edl->tracks->first; track; track=track->next ) {
1686                 if( track->is_hidden() ) continue;
1687                 if( !track->is_armed() && color1 < 0 ) {
1688                         if( dropping )
1689                                 dy -= track->vertical_span(mwindow->theme);
1690                         continue;
1691                 }
1692                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1693                         if( !edit->is_selected ) continue;
1694                         dropping = 1;
1695                         int64_t x, y, w, h;
1696                         edit_dimensions(edit, x, y, w, h);
1697                         x += dx;  y += dy;
1698                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1699                         if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1700                         set_opaque();
1701                         int inner = color1 < 0 ? color0 : !edit->group_id ? color0 :
1702                                 mwindow->get_group_color(edit->group_id);
1703                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1704                         set_color(track->is_armed() ? inner : outer);
1705                         draw_selected(x, y, w, h);
1706                         set_color(track->is_armed() ? outer : inner);
1707                         draw_selected(x-1, y-1, w+2, h+2);
1708                         draw_selected(x-2, y-2, w+1, h+1);
1709                 }
1710         }
1711 }
1712
1713 void TrackCanvas::draw_plugins()
1714 {
1715         char string[BCTEXTLEN];
1716         int current_on = 0;
1717         int current_show = 0;
1718         int current_preset = 0;
1719
1720         for(int i = 0; i < plugin_on_toggles.total; i++)
1721                 plugin_on_toggles.values[i]->in_use = 0;
1722         for(int i = 0; i < plugin_show_toggles.total; i++)
1723                 plugin_show_toggles.values[i]->in_use = 0;
1724         for(int i = 0; i < preset_edit_buttons.total; i++)
1725                 plugin_show_toggles.values[i]->in_use = 0;
1726
1727
1728         for(Track *track = mwindow->edl->tracks->first;
1729                 track;
1730                 track = track->next)
1731         {
1732                 if( track->is_hidden() ) continue;
1733                 if(track->expand_view)
1734                 {
1735                         for(int i = 0; i < track->plugin_set.total; i++)
1736                         {
1737                                 PluginSet *pluginset = track->plugin_set.values[i];
1738
1739                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1740                                 {
1741                                         int64_t total_x, y, total_w, h;
1742                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1743
1744                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1745                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1746                                                 plugin->plugin_type != PLUGIN_NONE)
1747                                         {
1748                                                 int x = total_x, w = total_w, left_margin = 5;
1749                                                 int right_margin = 5;
1750                                                 if(x < 0)
1751                                                 {
1752                                                         w -= -x;
1753                                                         x = 0;
1754                                                 }
1755                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1756
1757                                                 draw_3segmenth(x,
1758                                                         y,
1759                                                         w,
1760                                                         total_x,
1761                                                         total_w,
1762                                                         mwindow->theme->get_image("plugin_bg_data"),
1763                                                         0);
1764                                                 set_color(mwindow->theme->title_color);
1765                                                 set_font(mwindow->theme->title_font);
1766                                                 plugin->calculate_title(string, 0);
1767
1768 // Truncate string to int64_test visible in background
1769                                                 int len = strlen(string), j;
1770                                                 for(j = len; j >= 0; j--)
1771                                                 {
1772                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1773                                                         {
1774                                                                 string[j] = 0;
1775                                                         }
1776                                                         else
1777                                                                 break;
1778                                                 }
1779
1780 // Justify the text on the left boundary of the edit if it is visible.
1781 // Otherwise justify it on the left side of the screen.
1782                                                 int64_t text_x = total_x + left_margin;
1783                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1784                                                 text_x = MAX(left_margin, text_x);
1785                                                 draw_text(text_x,
1786                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1787                                                         string,
1788                                                         strlen(string),
1789                                                         0);
1790                                                 int64_t min_x = total_x + text_w;
1791
1792
1793 // Update plugin toggles
1794                                                 int toggle_x = total_x + total_w;
1795                                                 int toggle_y = y;
1796                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1797
1798 // On toggle
1799                                                 toggle_x -= PluginOn::calculate_w(mwindow) + xS(10);
1800                                                 if(toggle_x > min_x)
1801                                                 {
1802                                                         if(current_on >= plugin_on_toggles.total)
1803                                                         {
1804                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1805                                                                 add_subwindow(plugin_on);
1806                                                                 plugin_on_toggles.append(plugin_on);
1807                                                         }
1808                                                         else
1809                                                         {
1810                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1811                                                         }
1812                                                         current_on++;
1813                                                 }
1814
1815 // Toggles for standalone plugins only
1816                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1817                                                 {
1818 // Show
1819                                                         toggle_x -= PluginShow::calculate_w(mwindow) + xS(10);
1820                                                         if(toggle_x > min_x)
1821                                                         {
1822                                                                 if(current_show >= plugin_show_toggles.total)
1823                                                                 {
1824                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1825                                                                         add_subwindow(plugin_show);
1826                                                                         plugin_show_toggles.append(plugin_show);
1827                                                                 }
1828                                                                 else
1829                                                                 {
1830                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1831                                                                 }
1832                                                                 current_show++;
1833                                                         }
1834                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + xS(10);
1835                                                         if(toggle_x > min_x)
1836                                                         {
1837                                                                 if(current_preset >= preset_edit_buttons.total)
1838                                                                 {
1839                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1840                                                                         add_subwindow(preset_edit);
1841                                                                         preset_edit_buttons.append(preset_edit);
1842                                                                 }
1843                                                                 else
1844                                                                 {
1845                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1846                                                                 }
1847                                                                 current_preset++;
1848                                                         }
1849                                                 }
1850                                         }
1851                                 }
1852                         }
1853                 }
1854         }
1855
1856 // Remove unused toggles
1857
1858         while(current_preset < preset_edit_buttons.total)
1859         {
1860                 preset_edit_buttons.remove_object_number(current_preset);
1861         }
1862         while(current_show < plugin_show_toggles.total)
1863         {
1864                 plugin_show_toggles.remove_object_number(current_show);
1865         }
1866
1867         while(current_on < plugin_on_toggles.total)
1868         {
1869                 plugin_on_toggles.remove_object_number(current_on);
1870         }
1871 }
1872
1873 void TrackCanvas::refresh_plugintoggles()
1874 {
1875         for(int i = 0; i < plugin_on_toggles.total; i++)
1876         {
1877                 PluginOn *on = plugin_on_toggles.values[i];
1878                 on->reposition_window(on->get_x(), on->get_y());
1879         }
1880         for(int i = 0; i < plugin_show_toggles.total; i++)
1881         {
1882                 PluginShow *show = plugin_show_toggles.values[i];
1883                 show->reposition_window(show->get_x(), show->get_y());
1884         }
1885         for(int i = 0; i < preset_edit_buttons.total; i++)
1886         {
1887                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1888                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1889         }
1890 }
1891
1892 void TrackCanvas::draw_hard_edges()
1893 {
1894         if( !mwindow->edl->session->auto_conf->hard_edges )
1895                 return;
1896         int64_t x, y, w, h;
1897
1898         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1899                 if( track->is_hidden() ) continue;
1900                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1901                         if( !edit->hard_left && !edit->hard_right ) continue;
1902                         edit_dimensions(edit, x, y, w, h);
1903                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ||
1904                             !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1905                         set_color(GREEN);
1906                         set_opaque();
1907                         int y1 = y;
1908                         if( track->show_titles() )
1909                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1910                         if( track->show_assets() )
1911                                 y1 += track->data_h;
1912                         if( y1 == y )
1913                                 y1 += mwindow->theme->title_h;
1914                         if( edit->hard_left ) {
1915                                 ArrayList<int> xpt, ypt;
1916                                 xpt.append(x);              ypt.append(y1);
1917                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1918                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1919                                 fill_polygon(&xpt, &ypt);
1920                         }
1921                         if( edit->hard_right ) {
1922                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1923                                 xpt.append(x1);            ypt.append(y1);
1924                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1925                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1926                                 fill_polygon(&xpt, &ypt);
1927                         }
1928                 }
1929         }
1930 }
1931
1932 void TrackCanvas::draw_inout_points()
1933 {
1934 }
1935
1936
1937 void TrackCanvas::draw_drag_handle()
1938 {
1939         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 &&
1940             mwindow->session->current_operation != DRAG_PLUGINHANDLE2 ) return;
1941         int64_t pixel1 = Units::round(mwindow->session->drag_position *
1942                 mwindow->edl->session->sample_rate /
1943                 mwindow->edl->local_session->zoom_sample -
1944                 mwindow->edl->local_session->view_start[pane->number]);
1945         set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1946         set_inverse();
1947         draw_line(pixel1, 0, pixel1, get_h());
1948         set_opaque();
1949
1950         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 ) return;
1951         if( !mwindow->session->drag_edit ) return;
1952         int group_id = mwindow->session->drag_edit->group_id;
1953         if( !group_id ) return;
1954         int64_t dx, dy, dw, dh;
1955         edit_dimensions(mwindow->session->drag_edit, dx, dy, dw, dh);
1956         int drag_handle = mwindow->session->drag_handle;
1957         int64_t pixel0 = !drag_handle ? dx : dx + dw;
1958         int delta = pixel1 - pixel0;
1959         set_color(LTPURPLE);
1960         set_line_width(3);
1961
1962         for( Track *track=mwindow->edl->tracks->first; track; track=track->next ) {
1963                 if( track->is_hidden() ) continue;
1964                 Edit *left = 0, *right = 0;
1965                 double start = DBL_MAX, end = DBL_MIN;
1966                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1967                         if( edit->group_id != group_id ) continue;
1968                         double edit_start = edit->track->from_units(edit->startproject);
1969                         if( edit_start < start ) { start = edit_start;  left = edit; }
1970                         double edit_end = edit->track->from_units(edit->startproject+edit->length);
1971                         if( edit_end > end ) { end = edit_end;  right = edit; }
1972                 }
1973                 Edit *edit = !drag_handle ? left : right;
1974                 if( !edit ) continue;
1975                 Indexable *idxbl = edit->asset;
1976                 if( !idxbl ) idxbl = edit->nested_edl;
1977                 int can_drag = idxbl ? 1 : 0;
1978                 if( drag_handle ) {
1979                         int64_t source_len = !idxbl ? -1 :
1980                                 edit->track->data_type == TRACK_AUDIO ?
1981                                         idxbl->get_audio_samples() :
1982                                 edit->track->data_type == TRACK_VIDEO ?
1983                                         idxbl->get_video_frames() : -1;
1984                         int64_t speed_start = edit->startproject;
1985                         int64_t speed_end = speed_start + edit->length;
1986                         int64_t speed_length = track->speed_length(speed_start, speed_end);
1987                         if( edit->startsource + speed_length >= source_len )
1988                                 can_drag = 0;
1989                 }
1990                 else if( !edit->startsource )
1991                         can_drag = 0;
1992                 int64_t x, y, w, h;
1993                 edit_dimensions(edit, x, y, w, h);
1994                 if( y+h < 0 || y >= get_h() ) continue;
1995                 int edge_x = !drag_handle ? x : x + w;
1996                 int edge_y = y + h/2, xs10 = xS(10), ys10 = yS(10);
1997                 if( edge_x >= 0 && edge_x < get_w() ) {
1998                         if( !can_drag ) {
1999                                 draw_line(edge_x-xs10,edge_y-ys10, edge_x+xs10,edge_y+ys10);
2000                                 draw_line(edge_x-xs10,edge_y+ys10, edge_x+xs10,edge_y-ys10);
2001                         }
2002                         else if( !drag_handle ) {
2003                                 draw_line(edge_x+xs10,edge_y-ys10, edge_x,edge_y);
2004                                 draw_line(edge_x+xs10,edge_y+ys10, edge_x,edge_y);
2005                         }
2006                         else {
2007                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y-ys10);
2008                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y+ys10);
2009                         }
2010                 }
2011                 edge_x += delta;
2012                 if( edge_x >= 0 && edge_x < get_w() ) {
2013                         draw_line(edge_x, y, edge_x, y+h);
2014                 }
2015         }
2016         set_line_width(1);
2017 }
2018
2019
2020 void TrackCanvas::draw_transitions()
2021 {
2022         int64_t x, y, w, h;
2023
2024         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2025                 if( track->is_hidden() ) continue;
2026                 if( !track->show_transitions() ) continue;
2027
2028                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2029                         if(!edit->transition) continue;
2030                         edit_dimensions(edit, x, y, w, h);
2031                         int strip_x = x, edit_y = y;
2032                         get_transition_coords(edit, x, y, w, h);
2033                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2034                         if( track->show_assets() && track->show_titles() )
2035                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2036                         if( strip_y < edit_y ) strip_y = edit_y;
2037
2038                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2039                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2040                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2041                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2042                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2043                                                 track->data_type);
2044                                 if( !server ) continue;
2045                                 VFrame *picon = server->get_picon();
2046                                 if( !picon ) continue;
2047                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2048                                 int track_h = edit->track->vertical_span(mwindow->theme);
2049                                 if( picon_h > track_h ) picon_h = track_h;
2050                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2051                         }
2052                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2053                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2054                                 int x = strip_x, w = strip_w;
2055                                 if( x < 0 ) {  w -= -x;  x = 0; }
2056                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2057
2058                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2059                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2060                         }
2061                 }
2062         }
2063 }
2064
2065 void TrackCanvas::draw_loop_points()
2066 {
2067 //printf("TrackCanvas::draw_loop_points 1\n");
2068         if(mwindow->edl->local_session->loop_playback)
2069         {
2070 //printf("TrackCanvas::draw_loop_points 2\n");
2071                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2072                         mwindow->edl->session->sample_rate /
2073                         mwindow->edl->local_session->zoom_sample -
2074                         mwindow->edl->local_session->view_start[pane->number]);
2075 //printf("TrackCanvas::draw_loop_points 3\n");
2076
2077                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2078                 {
2079                         set_color(GREEN);
2080                         draw_line(x, 0, x, get_h());
2081                 }
2082 //printf("TrackCanvas::draw_loop_points 4\n");
2083
2084                 x = Units::round(mwindow->edl->local_session->loop_end *
2085                         mwindow->edl->session->sample_rate /
2086                         mwindow->edl->local_session->zoom_sample -
2087                         mwindow->edl->local_session->view_start[pane->number]);
2088 //printf("TrackCanvas::draw_loop_points 5\n");
2089
2090                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2091                 {
2092                         set_color(GREEN);
2093                         draw_line(x, 0, x, get_h());
2094                 }
2095 //printf("TrackCanvas::draw_loop_points 6\n");
2096         }
2097 //printf("TrackCanvas::draw_loop_points 7\n");
2098 }
2099
2100 void TrackCanvas::draw_brender_range()
2101 {
2102         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2103         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2104         if( mwindow->edl->session->brender_end > 0 )
2105         {
2106                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2107                         mwindow->edl->session->sample_rate /
2108                         mwindow->edl->local_session->zoom_sample -
2109                         mwindow->edl->local_session->view_start[pane->number]);
2110                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2111                 {
2112                         set_color(RED);
2113                         draw_line(x1, 0, x1, get_h());
2114                 }
2115                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2116                         mwindow->edl->session->sample_rate /
2117                         mwindow->edl->local_session->zoom_sample -
2118                         mwindow->edl->local_session->view_start[pane->number]);
2119
2120                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2121                 {
2122                         set_color(RED);
2123                         draw_line(x2, 0, x2, get_h());
2124                 }
2125         }
2126 }
2127
2128 // The operations which correspond to each automation type
2129 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2130 {
2131         DRAG_MUTE,
2132         DRAG_CAMERA_X,
2133         DRAG_CAMERA_Y,
2134         DRAG_CAMERA_Z,
2135         DRAG_PROJECTOR_X,
2136         DRAG_PROJECTOR_Y,
2137         DRAG_PROJECTOR_Z,
2138         DRAG_FADE,
2139         DRAG_PAN,
2140         DRAG_MODE,
2141         DRAG_MASK,
2142         DRAG_SPEED
2143 };
2144
2145 // The buttonpress operations, so nothing changes unless the mouse moves
2146 // a certain amount.  This allows the keyframe to be used to position the
2147 // insertion point without moving itself.
2148 static int pre_auto_operations[AUTOMATION_TOTAL] =
2149 {
2150         DRAG_MUTE,
2151         DRAG_CAMERA_X,
2152         DRAG_CAMERA_Y,
2153         DRAG_CAMERA_Z,
2154         DRAG_PROJECTOR_X,
2155         DRAG_PROJECTOR_Y,
2156         DRAG_PROJECTOR_Z,
2157         DRAG_FADE,
2158         DRAG_PAN_PRE,
2159         DRAG_MODE_PRE,
2160         DRAG_MASK_PRE,
2161         DRAG_SPEED
2162 };
2163
2164
2165 int TrackCanvas::do_keyframes(int cursor_x,
2166         int cursor_y,
2167         int draw,
2168         int buttonpress,
2169         int &new_cursor,
2170         int &update_cursor,
2171         int &rerender)
2172 {
2173 // Note: button 3 (right mouse button) is not eaten to allow
2174 // track context menu to appear
2175         int result = 0;
2176         EDLSession *session = mwindow->edl->session;
2177         int gang = session->gang_tracks != GANG_NONE || get_double_click() ? 1 : 0;
2178
2179         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2180         {
2181                 0, 0, 0, 0, 0, 0, 0, 0,
2182                 pankeyframe_pixmap,
2183                 modekeyframe_pixmap,
2184                 maskkeyframe_pixmap,
2185                 0,
2186         };
2187
2188
2189
2190         for(Track *track = mwindow->edl->tracks->first;
2191                 track && !result;
2192                 track = track->next) {
2193                 if( track->is_hidden() ) continue;
2194                 Auto *auto_keyframe = 0;
2195                 Automation *automation = track->automation;
2196
2197
2198 // Handle keyframes in reverse drawing order if a button press
2199                 int start = 0;
2200                 int end = AUTOMATION_TOTAL;
2201                 int step = 1;
2202                 if(buttonpress)
2203                 {
2204                         start = AUTOMATION_TOTAL - 1;
2205                         end = -1;
2206                         step = -1;
2207                 }
2208                 for(int i = start; i != end && !result; i += step)
2209                 {
2210 // Event not trapped and automation visible
2211                         Autos *autos = automation->autos[i];
2212                         if(!result && session->auto_conf->autos[i] && autos) {
2213                                 switch(i) {
2214                                 case AUTOMATION_MODE:
2215                                 case AUTOMATION_PAN:
2216                                 case AUTOMATION_MASK:
2217                                         result = do_autos(track, automation->autos[i],
2218                                                 cursor_x, cursor_y, draw,
2219                                                 buttonpress, auto_pixmaps[i],
2220                                                 auto_keyframe, rerender);
2221                                                 break;
2222
2223                                 default: {
2224                                         switch(autos->get_type()) {
2225                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2226                                                 Automation automation(0, track);
2227                                                 int grouptype = automation.autogrouptype(i, track);
2228                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2229                                                         mwindow->speed_before();
2230                                                 }
2231
2232                                                 if(draw) // Do dropshadow
2233                                                         result = do_float_autos(track, autos,
2234                                                                 cursor_x, cursor_y, draw,
2235                                                                 buttonpress, 1, 1, MDGREY,
2236                                                                 auto_keyframe, grouptype);
2237                                                 result = do_float_autos(track, autos,
2238                                                         cursor_x, cursor_y, draw, buttonpress,
2239                                                         0, 0, GWindowGUI::auto_colors[i],
2240                                                         auto_keyframe, grouptype);
2241
2242                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2243                                                         mwindow->speed_after(-1);
2244                                                 if( result && buttonpress ) {
2245                                                         int color = GWindowGUI::auto_colors[i];
2246                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2247                                                 }
2248                                                 break; }
2249
2250                                         case Autos::AUTOMATION_TYPE_INT: {
2251                                                 if(draw) // Do dropshadow
2252                                                         result = do_int_autos(track, autos,
2253                                                                 cursor_x, cursor_y, draw,
2254                                                                 buttonpress, 1, 1, MDGREY,
2255                                                                 auto_keyframe);
2256                                                 result = do_int_autos(track, autos,
2257                                                         cursor_x, cursor_y, draw, buttonpress,
2258                                                         0, 0, GWindowGUI::auto_colors[i],
2259                                                         auto_keyframe);
2260                                                 break; }
2261                                         }
2262                                         break; }
2263                                 }
2264
2265                                 if(result)
2266                                 {
2267                                         if(mwindow->session->current_operation == auto_operations[i])
2268                                                 rerender = 1;
2269
2270 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2271 // __LINE__,
2272 // mwindow->session->current_operation,
2273 // auto_operations[i]);
2274                                         if(buttonpress)
2275                                         {
2276                                                 if (buttonpress == 2 && auto_keyframe )
2277                                                 {
2278                                                         double position = track->from_units(auto_keyframe->position);
2279                                                         mwindow->edl->local_session->set_selectionstart(position);
2280                                                         mwindow->edl->local_session->set_selectionend(position);
2281                                                 }
2282                                                 if (buttonpress != 3)
2283                                                 {
2284                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2285                                                                 fill_ganged_autos(gang, 0, track,
2286                                                                         (FloatAuto*)mwindow->session->drag_auto);
2287                                                         mwindow->session->current_operation = pre_auto_operations[i];
2288                                                         update_drag_caption();
2289                                                         rerender = 1;
2290                                                 }
2291                                                 else if( auto_keyframe )
2292                                                 {
2293                                                         gui->keyframe_menu->update(automation,
2294                                                                 autos,
2295                                                                 auto_keyframe);
2296                                                         gui->keyframe_menu->activate_menu();
2297                                                         rerender = 1; // the position changes
2298                                                 }
2299                                                 else if( autos )
2300                                                 {
2301                                                         gui->keyframe_hide->update(autos);
2302                                                         gui->keyframe_hide->activate_menu();
2303                                                         rerender = 1; // the position changes
2304                                                 }
2305                                                 if(buttonpress == 1 && ctrl_down() &&
2306                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2307                                                         rerender = 1; // special case: curve mode changed
2308                                         }
2309                                 }
2310                         }
2311                 }
2312
2313                 if(!result && session->auto_conf->plugins) {
2314                         Plugin *plugin;
2315                         KeyFrame *keyframe;
2316                         result = do_plugin_autos(track, cursor_x, cursor_y,
2317                                 draw, buttonpress, plugin, keyframe);
2318                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2319                                 rerender = 1;
2320                         }
2321                         if(result && (buttonpress == 1)) {
2322                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2323                                 update_drag_caption();
2324                                 rerender = 1;
2325                         }
2326                         else if (result && (buttonpress == 3)) {
2327                                 gui->keyframe_menu->update(plugin, keyframe);
2328                                 gui->keyframe_menu->activate_menu();
2329                                 rerender = 1; // the position changes
2330                         }
2331                 }
2332         }
2333
2334 // Final pass to trap event
2335         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2336                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2337                         mwindow->session->current_operation == auto_operations[i]) {
2338                         result = 1;
2339                         break;
2340                 }
2341         }
2342
2343         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2344                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2345                 result = 1;
2346         }
2347
2348         update_cursor = 1;
2349         if(result) {
2350                 new_cursor = UPRIGHT_ARROW_CURSOR;
2351         }
2352
2353         return result;
2354 }
2355
2356 void TrackCanvas::draw_keyframe_reticle()
2357 {
2358         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2359         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2360
2361         int current_op = mwindow->session->current_operation, dragging = 0;
2362         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2363                 if( current_op == auto_operations[i] ) dragging = 1;
2364         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2365
2366         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2367                 mwindow->session->drag_auto->autos->autoidx : -1;
2368
2369         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2370             keyframe_hairline == HAIRLINE_DRAGGING ) {
2371                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2372                 return;
2373         }
2374
2375         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2376             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2377                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2378                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2379                         if( track->is_hidden() ) continue;
2380                         Automation *automation = track->automation;
2381                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2382                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2383                                 // automation visible
2384                                 Autos *autos = automation->autos[i];
2385                                 if( !autos ) continue;
2386                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2387                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2388                                      auto_keyframe = auto_keyframe->next ) {
2389                                         draw_hairline(auto_keyframe, BLUE, show);
2390                                 }
2391                         }
2392                 }
2393
2394                 if( dragging )
2395                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2396         }
2397 }
2398
2399 void TrackCanvas::draw_auto(Auto *current, int x, int y,
2400                 int center_pixel, int data_h)
2401 {
2402         int x1, y1, x2, y2;
2403
2404         x1 = x - HANDLE_W / 2;
2405         x2 = x + HANDLE_W / 2;
2406         y1 = center_pixel + y - HANDLE_W / 2;
2407         y2 = center_pixel + y + HANDLE_W / 2;
2408
2409         if( y1 < center_pixel - data_h/2 ) y1 = center_pixel - data_h/2;
2410         if( y2 > center_pixel + data_h/2 ) y2 = center_pixel + data_h/2;
2411
2412         draw_box(x1, y1, x2 - x1, y2 - y1);
2413 }
2414
2415
2416 // This draws lines for bezier in & out controls
2417 void TrackCanvas::draw_cropped_line(int x1,
2418         int y1,
2419         int x2,
2420         int y2,
2421         int min_y,
2422         int max_y)
2423 {
2424
2425
2426 // Don't care about x since it is clipped by the window.
2427 // Put y coords in ascending order
2428         if(y2 < y1) {
2429                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2430                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2431         }
2432
2433
2434
2435         double slope = (double)(x2 - x1) / (y2 - y1);
2436 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2437         if(y1 < min_y) {
2438                 x1 = (int)(x1 + (min_y - y1) * slope);
2439                 y1 = min_y;
2440         }
2441         else if(y1 >= max_y) {
2442                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2443                 y1 = max_y - 1;
2444         }
2445
2446         if(y2 >= max_y) {
2447                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2448                 y2 = max_y - 1;
2449         }
2450         else if(y2 < min_y) {
2451                 x2 = (int)(x2 + (min_y - y2) * slope);
2452                 y1 = min_y;
2453         }
2454
2455
2456 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2457         if( y1 >= min_y && y1 < max_y &&
2458             y2 >= min_y && y2 < max_y )
2459                 draw_line(x1, y1, x2, y2);
2460 }
2461
2462
2463 void TrackCanvas::draw_floatauto(FloatAuto *current,
2464                 int x_offset, int center_pixel, int data_h, int color,
2465                 double unit_start, double zoom_units, double yscale,
2466                 int autogrouptype)
2467 {
2468         double xx, yy;
2469         calculate_auto_position(1, &xx, &yy, 0, 0, 0, 0,
2470                 current, unit_start, zoom_units, yscale, autogrouptype);
2471         int x = (int)xx + x_offset;
2472         int x1 = x - HANDLE_W / 2; // Center
2473         int x2 = x + HANDLE_W / 2;
2474         int y = (int)yy + center_pixel;
2475         int y1 = y - HANDLE_H / 2;
2476         int y2 = y + HANDLE_H / 2;
2477         int ymin = center_pixel - data_h / 2;
2478         int ymax = center_pixel + data_h / 2;
2479         CLAMP(y1, ymin, ymax);
2480         CLAMP(y2, ymin, ymax);
2481
2482         if( y2-1 > y1 ) {
2483                 if( current->curve_mode == FloatAuto::LINEAR ) {
2484                         draw_box(x1, y1, x2 - x1, y2 - y1);
2485                 }
2486                 else {
2487                         ArrayList<int> polygon_x;
2488                         ArrayList<int> polygon_y;
2489                         polygon_x.append((x1 + x2) / 2 + 1);
2490                         polygon_y.append(y1 + 1);
2491                         polygon_x.append(x2 + 1);
2492                         polygon_y.append((y1 + y2) / 2 + 1);
2493                         polygon_x.append((x1 + x2) / 2 + 1);
2494                         polygon_y.append(y2 + 1);
2495                         polygon_x.append(x1 + 1);
2496                         polygon_y.append((y1 + y2) / 2 + 1);
2497                         fill_polygon(&polygon_x, &polygon_y);
2498                 }
2499         }
2500
2501 // show bezier control points (only) if this
2502 // floatauto doesn't adjust it's tangents automatically
2503         if(current->curve_mode != FloatAuto::FREE &&
2504            current->curve_mode != FloatAuto::TFREE &&
2505            current->curve_mode != FloatAuto::BUMP)
2506                 return;
2507         double in_xx, in_yy, out_xx, out_yy;
2508         calculate_auto_position(1, &xx, &yy, &in_xx, &in_yy, 0, 0,
2509                 current, unit_start, zoom_units, yscale, autogrouptype);
2510         int ix = xx, iy = yy, in_x = in_xx, in_y = in_yy;
2511         if( in_x != ix )
2512                 draw_floatauto_ctrlpoint(ix, iy, in_x, in_y, center_pixel, data_h, color);
2513         calculate_auto_position(0, &xx, &yy, 0, 0, &out_xx, &out_yy,
2514                 current, unit_start, zoom_units, yscale, autogrouptype);
2515         int ox = xx, oy = yy, out_x = out_xx, out_y = out_yy;
2516         if( out_x != ox )
2517                 draw_floatauto_ctrlpoint(ox, oy, out_x, out_y, center_pixel, data_h, color);
2518         if( current->curve_mode == FloatAuto::BUMP && iy != oy )
2519                 draw_bline(ix, iy+center_pixel, ox, oy+center_pixel);
2520 }
2521
2522 inline int quantize(float f) { return (int)floor(f + 0.5); }
2523
2524 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2525                 int x, int y, int cp_x, int cp_y, int center_pixel,
2526                 int data_h, int color)
2527 // draw the tangent and a handle for given bézier ctrl point
2528 {
2529         bool handle_visible = (abs(cp_y) <= data_h/2);
2530
2531         float slope = (float)(cp_y - y)/(cp_x - x);
2532         CLAMP(cp_y, -data_h/2, data_h/2);
2533         if(slope != 0)
2534                 cp_x = x + quantize((cp_y - y) / slope);
2535
2536         y    += center_pixel;
2537         cp_y += center_pixel;
2538
2539         // drawing the tangent as a dashed line...
2540         int const dash = HANDLE_W;
2541         int const gap  = HANDLE_W / 2;
2542         float sx = 3 * (cp_x - x) / 4.;
2543         float ex = 0;
2544
2545         // q is the x displacement for a unit line of slope
2546         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2547
2548         float dist = 1/q * sx;
2549         if( dist > dash )
2550                 ex = sx - q * dash;
2551
2552         set_color(color);
2553         do {
2554                 float sy = slope * sx, ey = slope * ex;
2555                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2556                 sx = ex - q * gap;
2557                 ex = sx - q * dash;
2558         } while(q*ex > 0);
2559
2560         if(handle_visible)
2561         {
2562                 int r = HANDLE_W / 2;
2563                 int cp_x1 = cp_x - r;
2564                 int cp_y1 = cp_y - r;
2565                 set_color(BLACK);
2566                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2567                 set_color(color);
2568                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2569         }
2570 }
2571
2572
2573 int TrackCanvas::test_auto(Auto *current,
2574         int x, int y, int center_pixel, int data_h,
2575         int cursor_x, int cursor_y, int buttonpress)
2576 {
2577         int x1, y1, x2, y2;
2578         int result = 0;
2579
2580         x1 = x - HANDLE_W / 2;
2581         x2 = x + HANDLE_W / 2;
2582         y1 = center_pixel + y - HANDLE_H / 2;
2583         y2 = center_pixel + y + HANDLE_H / 2;
2584         int ymin = center_pixel - data_h/2;
2585         int ymax = center_pixel + data_h/2;
2586         CLAMP(y1, ymin, ymax);
2587         CLAMP(y2, ymin, ymax);
2588
2589         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2590         {
2591                 if(buttonpress && buttonpress != 3)
2592                 {
2593                         mwindow->session->drag_auto = current;
2594                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2595                         // Toggle Autos don't respond to vertical zoom, they always show up
2596                         // with "on" == 100% == line on top
2597                         mwindow->session->drag_start_position = current->position;
2598                         mwindow->session->drag_origin_x = cursor_x;
2599                         mwindow->session->drag_origin_y = cursor_y;
2600                 }
2601                 result = 1;
2602         }
2603
2604         if(buttonpress && buttonpress != 3 && result)
2605         {
2606 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2607                 mwindow->undo->update_undo_before();
2608         }
2609
2610         return result;
2611 }
2612
2613 // some Helpers for test_floatauto(..)
2614 // and for dragging the tangents/ctrl points
2615 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2616         float cursor_x, float cursor_y)
2617 {
2618 // Control point switched off?
2619         if( x0 == ctrl_x ) return 0.0;
2620         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2621         double x = cursor_x-x0, y = cursor_y-y0;
2622 // wrong side of ctrl handle
2623         if( x*x1 < 0 ) return 0.0;
2624 // outside handle radius
2625         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2626         double xx1 = x1*x1, yy1 = y1*y1;
2627         double xx = x*x, yy = y*y;
2628 // distance squared from cursor to cursor projected to line from ctrl to handle
2629 //   along a line perpendicular to line from ctrl to handle (closest approach)
2630 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2631         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2632         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2633 }
2634
2635
2636 inline
2637 float levered_position(float position, float ref_pos)
2638 {
2639         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2640                 return 0.0;
2641         return ref_pos / position;
2642 }
2643
2644
2645 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2646 // transforms automation value into current display coords,
2647 // dependant on current automation display range for the given kind of automation
2648 {
2649         if(!mwindow || !mwindow->edl) return 0;
2650         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2651         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2652         float automation_range = automation_max - automation_min;
2653         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2654                 return 0;
2655         return (auto_value - automation_min) / automation_range;
2656 }
2657
2658
2659
2660 int TrackCanvas::test_floatauto(FloatAuto *current, int buttonpress,
2661                 int center_pixel, int data_h, int cursor_x, int cursor_y,
2662                 double unit_start, double zoom_units, double yscale,
2663                 int autogrouptype)
2664 {
2665         int result = 0;
2666         double xx, yy, in_xx, in_yy, out_xx, out_yy;
2667         calculate_auto_position(1, &xx, &yy, &in_xx, &in_yy, 0, 0,
2668                 current, unit_start, zoom_units, yscale, autogrouptype);
2669         int ix = xx, iy = yy, in_x = in_xx, in_y = in_yy;
2670
2671         int x1 = ix - HANDLE_W / 2;
2672         int x2 = ix + HANDLE_W / 2;
2673         int y1 = center_pixel + iy - HANDLE_W / 2;
2674         int y2 = center_pixel + iy + HANDLE_W / 2;
2675         int ymin = center_pixel - data_h/2;
2676         int ymax = center_pixel + data_h/2;
2677         CLAMP(y1, ymin, ymax);
2678         CLAMP(y2, ymin, ymax);
2679
2680         int in_x1 = in_x - HANDLE_W / 2;
2681         int in_x2 = in_x + HANDLE_W / 2;
2682         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2683         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2684         CLAMP(in_y1, ymin, ymax);
2685         CLAMP(in_y2, ymin, ymax);
2686
2687         calculate_auto_position(0, &xx, &yy, 0, 0, &out_xx, &out_yy,
2688                 current, unit_start, zoom_units, yscale, autogrouptype);
2689         int ox = xx, oy = yy, out_x = out_xx, out_y = out_yy;
2690         int out_x1 = out_x - HANDLE_W / 2;
2691         int out_x2 = out_x + HANDLE_W / 2;
2692         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2693         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2694         CLAMP(out_y1, ymin, ymax);
2695         CLAMP(out_y2, ymin, ymax);
2696
2697
2698 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2699 // buttonpress could be the start of a drag operation
2700 #define INIT_DRAG(POS,VAL) \
2701                 mwindow->session->drag_auto = current;      \
2702                 mwindow->session->drag_origin_x = cursor_x;  \
2703                 mwindow->session->drag_origin_y = cursor_y;   \
2704                 mwindow->session->drag_start_position = (POS); \
2705                 mwindow->session->drag_start_percentage = (VAL);
2706
2707 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2708
2709
2710 // without modifier we are manipulating the automation node
2711 // with ALT it's about dragging only the value of the node
2712 // with SHIFT the value snaps to the value of neighbouring nodes
2713 // CTRL indicates we are rather manipulating the tangent(s) of the node
2714
2715         if(!ctrl_down())
2716         {
2717                 if( WITHIN(x1,x2,y1,y2))
2718                 {       // cursor hits node
2719                         result = 1;
2720
2721                         if(buttonpress && (buttonpress != 3))
2722                         {
2723                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2724                                 mwindow->session->drag_handle = 0;
2725                 }       }
2726         }
2727         else // ctrl_down()
2728         {
2729                 if( WITHIN(x1,x2,y1,y2))
2730                 {
2731                         result = 1;
2732                         if(buttonpress && (buttonpress != 3))
2733                         {
2734                                 // could be ctrl-click or ctrl-drag
2735                                 // click would cycle through tangent modes
2736                                 ((FloatAuto*)current)->toggle_curve_mode();
2737
2738                                 // drag will start dragging the tangent, if applicable
2739                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2740                                 mwindow->session->drag_handle = 0;
2741                         }
2742                 }
2743
2744                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2745
2746 // Test in control
2747                 if( in_x != ix && current->position > 0 &&
2748                         (FloatAuto::FREE == current->curve_mode ||
2749                          FloatAuto::TFREE == current->curve_mode ||
2750                          FloatAuto::BUMP == current->curve_mode))
2751 // act on in control handle only if
2752 // tangent is significant and is editable (not automatically choosen)
2753                 {
2754                         lever = test_curve_line(ix, iy, in_x, in_y, cursor_x, cursor_y-center_pixel);
2755  // either cursor in ctrl-point handle or cursor on tangent line
2756                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2757                                 result = 1;
2758                                 if(buttonpress && (buttonpress != 3)) {
2759                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2760 //                                      lever = 1.0;
2761                                         mwindow->session->drag_handle = 1;
2762                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2763                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2764                                                   value_to_percentage(new_invalue, autogrouptype))
2765                                 }
2766                         }
2767                 }
2768
2769 // Test out control
2770                 if(out_x != ox &&
2771                         (FloatAuto::FREE == current->curve_mode ||
2772                          FloatAuto::TFREE == current->curve_mode ||
2773                          FloatAuto::BUMP == current->curve_mode))
2774 // act on out control only if tangent is significant and is editable
2775                 {
2776                         lever = test_curve_line(ox, oy, out_x, out_y, cursor_x, cursor_y-center_pixel);
2777                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2778                                 result = 1;
2779                                 if(buttonpress && (buttonpress != 3)) {
2780                                         if(lever == 0.0) lever=1.0;
2781 //                                      lever = 1.0;
2782                                         mwindow->session->drag_handle = 2;
2783                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2784                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2785                                                   value_to_percentage(new_outvalue, autogrouptype))
2786                                 }
2787                         }
2788                 }
2789         } // end ctrl_down()
2790
2791 #undef WITHIN
2792 #undef INIT_DRAG
2793
2794 // if(buttonpress)
2795 // 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",
2796 // mwindow->session->drag_handle,
2797 // ctrl_down(),
2798 // cursor_x,
2799 // cursor_y,
2800 // x1, x2, y1, y2);
2801         if(buttonpress && (buttonpress != 3) && result)
2802         {
2803                 mwindow->undo->update_undo_before();
2804                 double position = current->autos->track->from_units(current->position);
2805                 mwindow->edl->local_session->set_selectionstart(position);
2806                 mwindow->edl->local_session->set_selectionend(position);
2807         }
2808
2809         return result;
2810 }
2811
2812 static int is_linear(FloatAuto *prev, FloatAuto *next)
2813 {
2814         if( !prev || !next ) return 0;
2815         if( prev->curve_mode == FloatAuto::LINEAR ) return 1;
2816         int64_t ipos = prev->get_control_in_position();
2817         int64_t opos = prev->get_control_out_position();
2818         if( !ipos && !opos ) return 1;
2819         if( !ipos || !opos ) return 0;
2820         float ival = next->get_control_in_value();
2821         float oval = prev->get_control_out_value();
2822         float cval = prev->get_value(0), nval = next->get_value(1);
2823         if( !ival && !oval && EQUIV(cval, nval) ) return 1;
2824         float ig = ival / ipos, og = oval / opos;
2825         int64_t cpos = prev->position, npos = next->position;
2826         float g = (nval - cval) / (npos - cpos);
2827         if( !EQUIV(g, 0) && EQUIV(ig, g) && EQUIV(og, g) ) return 1;
2828         return 0;
2829 }
2830
2831 // Get the float value & y for position x on the canvas
2832 #define X_TO_FLOATLINE(x) \
2833         double position = unit_start + x * zoom_units; \
2834         int64_t position1 = (int64_t)position, position2 = position1 + 1; \
2835 /* Call by reference fails for some reason here */ \
2836         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2837         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2838         double value = value1 + (value2 - value1) * (position - position1); \
2839         AUTOMATIONCLAMPS(value, autogrouptype); \
2840         int y = center_pixel + \
2841                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2842
2843
2844 void TrackCanvas::draw_floatline(int center_pixel,
2845         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2846         double unit_start, double zoom_units, double yscale,
2847         int x1, int y1, int x2, int y2,
2848         int color, int autogrouptype)
2849 {
2850         int ytop = center_pixel - yscale / 2;
2851         int ybot = center_pixel + yscale / 2 - 1;
2852         y1 += center_pixel;  y2 += center_pixel;
2853         if( (y1 < ytop && y1 >= ybot) && (y2 < ytop || y2 >= ybot) ) return;
2854 // check for line draw
2855         if( is_linear(previous, next) ) {
2856                 if( previous && previous->curve_mode == FloatAuto::BUMP ) {
2857                         double ax, ay;
2858                         calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0, previous,
2859                                 unit_start, zoom_units, yscale, autogrouptype);
2860                         x1 = ax;  y1 = ay;  y1 += center_pixel;
2861                 }
2862                 draw_line(x1, y1, x2, y2);
2863                 return;
2864         }
2865
2866 // Solve bezier equation for either every pixel or a certain large number of
2867 // points.
2868
2869 // Not using slope intercept
2870         x1 = MAX(0, x1);
2871         draw_pixel(x1, y1);
2872         int prev_y = y1;
2873
2874 // Call by reference fails for some reason here
2875         FloatAuto *previous1 = previous, *next1 = next;
2876         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2877         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2878         float automation_range = automation_max - automation_min;
2879         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
2880                 automation_range = SPEED_MIN;
2881         for( int x=x1; x<x2; ++x ) {
2882 // Interpolate value between frames
2883                 X_TO_FLOATLINE(x)
2884
2885                 if( /* x > x1 && */ y >= ytop && y < ybot ) {
2886                         int x1 = x-1, y1 = prev_y, x2 = x, y2 = y;
2887                         if( abs(y2-y1) < 2 )
2888                                 draw_pixel(x2, y2);
2889                         else
2890                                 draw_bline(x1, y1, x2, y2);
2891                 }
2892                 prev_y = y;
2893         }
2894 }
2895
2896
2897 int TrackCanvas::test_floatline(int center_pixel,
2898                 FloatAutos *autos,
2899                 double unit_start,
2900                 double zoom_units,
2901                 double yscale,
2902                 int x1,
2903                 int x2,
2904                 int cursor_x,
2905                 int cursor_y,
2906                 int buttonpress,
2907                 int autogrouptype)
2908 {
2909         int result = 0;
2910
2911
2912         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2913         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2914         float automation_range = automation_max - automation_min;
2915         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
2916                 automation_range = SPEED_MIN;
2917         FloatAuto *previous1 = 0, *next1 = 0;
2918         X_TO_FLOATLINE(cursor_x);
2919
2920         if(cursor_x >= x1 &&
2921                 cursor_x < x2 &&
2922                 cursor_y >= y - HANDLE_W / 2 &&
2923                 cursor_y < y + HANDLE_W / 2 &&
2924                 !ctrl_down())
2925         {
2926                 result = 1;
2927
2928 // Menu
2929                 if(buttonpress == 3)
2930                 {
2931                 }
2932                 else
2933 // Create keyframe
2934                 if(buttonpress)
2935                 {
2936                         Auto *current;
2937                         mwindow->undo->update_undo_before();
2938                         double position = autos->track->from_units(position1);
2939                         position = mwindow->edl->align_to_frame(position, 0);
2940                         int64_t new_position = autos->track->to_units(position,0);
2941                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2942                         ((FloatAuto*)current)->set_value(value);
2943                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2944                         mwindow->session->drag_start_position = current->position;
2945                         mwindow->session->drag_origin_x = cursor_x;
2946                         mwindow->session->drag_origin_y = cursor_y;
2947                         mwindow->session->drag_handle = 0;
2948                 }
2949         }
2950
2951
2952         return result;
2953 }
2954
2955 // gang=-1 for keyframepopup update, all tracks where fautos exist
2956 // gang=0 for trackcanvas drag update, all gang matching tracks, create new fautos if needed
2957 // gang=1 for trackcanvas drag update, all gang tracks, create new fautos if needed
2958 void TrackCanvas::fill_ganged_autos(int gang, float change, Track *skip, FloatAuto *fauto)
2959 {
2960         if( !skip->is_ganged() ) return;
2961 // Handles the special case of modifying a fadeauto
2962 // when there are ganged faders on several tracks
2963         double position = skip->from_units(fauto->position);
2964         int autoidx = fauto->autos->autoidx;
2965         PatchGUI *patch = gang < 0 ? pane->patchbay->get_patch_of(skip) : 0;
2966         int edge = patch ? patch->edge : 0;
2967         int span = patch ? patch->span : 0;
2968         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2969                 if( (gang || current->data_type == skip->data_type) &&
2970                     current->armed_gang(skip) && current->is_armed() &&
2971                     current != skip ) {
2972                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2973                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
2974                         int64_t current_position = current->to_units(position, 1);
2975                         if( keyframe ) {
2976 // keyframe exists, just change it
2977                                 keyframe->bump_update(current_position, change, edge, span);
2978                         }
2979                         else if( gang >= 0 && ( get_double_click() ||
2980                                    mwindow->edl->session->auto_keyframes ) ) {
2981 // create keyframe on neighbouring track at the point in time given by fauto
2982                                 FloatAuto *previous = 0, *next = 0;
2983                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2984                                 float new_value = value + change;
2985                                 float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2986                                 float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2987                                 bclamp(new_value, auto_min, auto_max);
2988                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2989                                 keyframe->set_value(new_value, edge);
2990                         }
2991                         else
2992                                 continue;
2993                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2994                 }
2995         }
2996 }
2997
2998 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
2999 {
3000         double position = skip->from_units(fauto->position);
3001 // Move the gangs
3002         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
3003                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
3004                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
3005                 keyframe->bump_update(keyframe_position, change, 0, 0);
3006                 keyframe->set_control_in_value(fauto->get_control_in_value());
3007                 keyframe->set_control_out_value(fauto->get_control_out_value());
3008         }
3009 }
3010
3011 void TrackCanvas::clear_ganged_autos()
3012 {
3013 // remove the gangs
3014         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
3015                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
3016                 keyframe->autos->remove_nonsequential(keyframe);
3017         }
3018         mwindow->session->drag_auto_gang->remove_all();
3019 }
3020
3021
3022 void TrackCanvas::draw_toggleline(int center_pixel,
3023         int x1,
3024         int y1,
3025         int x2,
3026         int y2)
3027 {
3028         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
3029
3030         if(y2 != y1)
3031         {
3032                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
3033         }
3034 }
3035
3036 int TrackCanvas::test_toggleline(Autos *autos,
3037         int center_pixel,
3038         int x1,
3039         int y1,
3040         int x2,
3041         int y2,
3042         int cursor_x,
3043         int cursor_y,
3044         int buttonpress)
3045 {
3046         int result = 0;
3047         if(cursor_x >= x1 && cursor_x < x2)
3048         {
3049                 int miny = center_pixel + y1 - HANDLE_W / 2;
3050                 int maxy = center_pixel + y1 + HANDLE_W / 2;
3051                 if(cursor_y >= miny && cursor_y < maxy)
3052                 {
3053                         result = 1;
3054
3055 // Menu
3056                         if(buttonpress == 3)
3057                         {
3058                         }
3059                         else
3060 // Insert keyframe
3061                         if(buttonpress)
3062                         {
3063                                 Auto *current;
3064                                 double position = (double)(cursor_x +
3065                                                 mwindow->edl->local_session->view_start[pane->number]) *
3066                                         mwindow->edl->local_session->zoom_sample /
3067                                         mwindow->edl->session->sample_rate;
3068                                 int64_t unit_position = autos->track->to_units(position, 0);
3069                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
3070
3071                                 mwindow->undo->update_undo_before();
3072
3073                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
3074                                 ((IntAuto*)current)->value = new_value;
3075                                 // Toggle Autos don't respond to vertical zoom, they always show up
3076                                 // with "on" == 100% == line on top
3077                                 mwindow->session->drag_start_percentage = (float)new_value;
3078                                 mwindow->session->drag_start_position = current->position;
3079                                 mwindow->session->drag_origin_x = cursor_x;
3080                                 mwindow->session->drag_origin_y = cursor_y;
3081                         }
3082                 }
3083         };
3084
3085         return result;
3086 }
3087
3088 void TrackCanvas::calculate_viewport(Track *track,
3089         double &view_start,   // Seconds
3090         double &unit_start,
3091         double &view_end,     // Seconds
3092         double &unit_end,
3093         double &yscale,
3094         int &center_pixel,
3095         double &zoom_sample,
3096         double &zoom_units)
3097 {
3098
3099         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
3100                 mwindow->edl->local_session->zoom_sample /
3101                 mwindow->edl->session->sample_rate;
3102         unit_start = track->to_doubleunits(view_start);
3103         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
3104                 get_w()) *
3105                 mwindow->edl->local_session->zoom_sample /
3106                 mwindow->edl->session->sample_rate;
3107         unit_end = track->to_doubleunits(view_end);
3108
3109         int y = track->y_pixel
3110                         - mwindow->edl->local_session->track_start[pane->number];
3111         int has_titles = track->show_titles();
3112         int has_assets = track->show_assets();
3113         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
3114         double title_h = mwindow->theme->title_h;
3115         double data_h = track->data_h;
3116         double ys = has_assets ? data_h : has_titles ? title_bg_h : 0;
3117         double dy = has_titles ?
3118                 ( has_assets ? title_bg_h + data_h/2 : title_bg_h/2) :
3119                 ( has_assets ? data_h/2 : 0) ;
3120         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
3121         yscale = ys;
3122         center_pixel = y + dy;
3123
3124         zoom_sample = mwindow->edl->local_session->zoom_sample;
3125         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
3126 }
3127
3128 float TrackCanvas::percentage_to_value(float percentage,
3129         int is_toggle,
3130         Auto *reference,
3131         int autogrouptype)
3132 {
3133         float result;
3134         if(is_toggle)
3135         {
3136                 if(percentage > 0.5)
3137                         result = 1;
3138                 else
3139                         result = 0;
3140         }
3141         else
3142         {
3143                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3144                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3145                 float automation_range = automation_max - automation_min;
3146
3147                 result = percentage * automation_range + automation_min;
3148                 if(reference)
3149                 {
3150                         FloatAuto *ptr = (FloatAuto*)reference;
3151                         result -= ptr->get_value();
3152                 }
3153 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
3154         }
3155         return result;
3156 }
3157
3158
3159 void TrackCanvas::calculate_auto_position(int edge, double *x, double *y,
3160         double *in_x, double *in_y, double *out_x, double *out_y,
3161         Auto *current, double unit_start, double zoom_units, double yscale,
3162         int autogrouptype)
3163 {
3164         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3165         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3166         float automation_range = automation_max - automation_min;
3167         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
3168                 automation_range = SPEED_MIN;
3169         FloatAuto *ptr = (FloatAuto*)current;
3170         *x = (double)(ptr->position - unit_start) / zoom_units;
3171         *y = ((ptr->get_value(edge) - automation_min) / automation_range - 0.5) * -yscale;
3172
3173         if(in_x) {
3174 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
3175                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
3176         }
3177
3178         if(in_y) {
3179                 *in_y = (((ptr->get_value(edge) + ptr->get_control_in_value()) -
3180                                 automation_min) / automation_range - 0.5) * -yscale;
3181         }
3182
3183         if(out_x) {
3184 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
3185                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
3186         }
3187
3188         if(out_y) {
3189                 *out_y = (((ptr->get_value(edge) + ptr->get_control_out_value()) -
3190                                  automation_min) / automation_range - 0.5) * -yscale;
3191         }
3192 }
3193
3194
3195 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
3196                 int draw, int buttonpress, int x_offset, int y_offset, int color,
3197                 Auto* &auto_instance, int autogrouptype)
3198 {
3199         int result = 0;
3200         int center_pixel, draw_auto;
3201         double view_start, unit_start;
3202         double view_end, unit_end, yscale;
3203         double zoom_sample, zoom_units;
3204         double slope;
3205         //int skip = 0;
3206
3207         auto_instance = 0;
3208
3209         if(draw) set_color(color);
3210
3211         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3212                         yscale, center_pixel, zoom_sample, zoom_units);
3213
3214 // Get first auto before start
3215         Auto *current = 0, *previous = 0;
3216
3217         for( current = autos->last;
3218                 current && current->position >= unit_start;
3219                 current = PREVIOUS ) ;
3220
3221         Auto *first_auto = current ? current :
3222                  autos->first ? autos->first : autos->default_auto;
3223
3224         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
3225         if( first_auto ) {
3226                 calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0,
3227                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
3228         }
3229         if( current )
3230                 current = NEXT;
3231         else {
3232                 current = autos->first;
3233                 ax = 0;
3234         }
3235
3236         do {
3237                 //skip = 0;
3238                 draw_auto = 1;
3239
3240                 if(current) {
3241                         calculate_auto_position(1, &ax2, &ay2, 0, 0, 0, 0,
3242                                 current, unit_start, zoom_units, yscale, autogrouptype);
3243                 }
3244                 else {
3245                         ax2 = get_w();
3246                         ay2 = ay;
3247                         //skip = 1;
3248                 }
3249
3250                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3251
3252                 if(ax2 > get_w()) {
3253                         draw_auto = 0;
3254                         ax2 = get_w();
3255                         ay2 = ay + slope * (get_w() - ax);
3256                 }
3257
3258                 if(ax < 0) {
3259                         ay = ay + slope * (0 - ax);
3260                         ax = 0;
3261                 }
3262
3263 // Draw or test handle
3264                 if( current && !result && current != autos->default_auto ) {
3265                         if( !draw && track->is_armed() ) {
3266                                 result = test_floatauto((FloatAuto*)current, buttonpress,
3267                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3268                                         unit_start, zoom_units, yscale, autogrouptype);
3269                                 if( result )
3270                                         auto_instance = current;
3271                         }
3272                         if( draw && draw_auto ) {
3273                                 draw_floatauto((FloatAuto*)current, x_offset,
3274                                         (int)center_pixel + y_offset, (int)yscale, color,
3275                                         unit_start, zoom_units, yscale, autogrouptype);
3276                         }
3277                 }
3278
3279 // Draw or test joining line
3280                 if( !draw && !result && track->is_armed() /* && buttonpress != 3 */ ) {
3281                         result = test_floatline(center_pixel,
3282                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3283 // Exclude auto coverage from the end of the line.  The auto overlaps
3284                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3285                                 buttonpress, autogrouptype);
3286                 }
3287                 if( draw )
3288                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3289                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3290                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3291                                 color, autogrouptype);
3292
3293                 if( current ) {
3294                         previous = current;
3295                         calculate_auto_position(0, &ax2, &ay2, 0, 0, 0, 0, previous,
3296                                 unit_start, zoom_units, yscale, autogrouptype);
3297                         current = NEXT;
3298                 }
3299                 ax = ax2;  ay = ay2;
3300         } while( current && current->position <= unit_end && !result );
3301
3302         if( ax < get_w() && !result ) {
3303                 ax2 = get_w();  ay2 = ay;
3304                 if(!draw && track->is_armed() /* && buttonpress != 3 */ ) {
3305                         result = test_floatline(center_pixel,
3306                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3307                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3308                                 buttonpress, autogrouptype);
3309                 }
3310                 if( draw )
3311                         draw_floatline(center_pixel,
3312                                 (FloatAuto*)previous, (FloatAuto*)current,
3313                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3314                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3315                                 color, autogrouptype);
3316         }
3317
3318         return result;
3319 }
3320
3321
3322 int TrackCanvas::do_int_autos(Track *track,
3323                 Autos *autos,
3324                 int cursor_x,
3325                 int cursor_y,
3326                 int draw,
3327                 int buttonpress,
3328                 int x_offset,
3329                 int y_offset,
3330                 int color,
3331                 Auto *&auto_instance)
3332 {
3333         int result = 0;
3334         double view_start;
3335         double unit_start;
3336         double view_end;
3337         double unit_end;
3338         double yscale;
3339         int center_pixel;
3340         double zoom_sample;
3341         double zoom_units;
3342         double ax, ay, ax2, ay2;
3343
3344         auto_instance = 0;
3345
3346         if(draw) set_color(color);
3347
3348         calculate_viewport(track,
3349                 view_start,
3350                 unit_start,
3351                 view_end,
3352                 unit_end,
3353                 yscale,
3354                 center_pixel,
3355                 zoom_sample,
3356                 zoom_units);
3357
3358
3359         double high = -yscale * 0.8 / 2;
3360         double low = yscale * 0.8 / 2;
3361
3362 // Get first auto before start
3363         Auto *current;
3364         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3365                 ;
3366
3367         if(current)
3368         {
3369                 ax = 0;
3370                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3371                 current = NEXT;
3372         }
3373         else
3374         {
3375                 current = autos->first ? autos->first : autos->default_auto;
3376                 if(current)
3377                 {
3378                         ax = 0;
3379                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3380                 }
3381                 else
3382                 {
3383                         ax = 0;
3384                         ay = yscale;
3385                 }
3386         }
3387
3388         do
3389         {
3390                 if(current)
3391                 {
3392                         ax2 = (double)(current->position - unit_start) / zoom_units;
3393                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3394                 }
3395                 else
3396                 {
3397                         ax2 = get_w();
3398                         ay2 = ay;
3399                 }
3400
3401                 if(ax2 > get_w()) ax2 = get_w();
3402
3403                 if(current && !result)
3404                 {
3405                         if(current != autos->default_auto)
3406                         {
3407                                 if(!draw)
3408                                 {
3409                                         if(track->is_armed())
3410                                         {
3411                                                 result = test_auto(current,
3412                                                         (int)ax2,
3413                                                         (int)ay2,
3414                                                         (int)center_pixel,
3415                                                         (int)yscale,
3416                                                         cursor_x,
3417                                                         cursor_y,
3418                                                         buttonpress);
3419                                                 if (result)
3420                                                         auto_instance = current;
3421                                         }
3422                                 }
3423                                 else
3424                                         draw_auto(current,
3425                                                 (int)ax2 + x_offset,
3426                                                 (int)ay2 + y_offset,
3427                                                 (int)center_pixel,
3428                                                 (int)yscale);
3429                         }
3430
3431                         current = NEXT;
3432                 }
3433
3434                 if(!draw)
3435                 {
3436                         if(!result)
3437                         {
3438                                 if(track->is_armed() /* && buttonpress != 3 */)
3439                                 {
3440                                         result = test_toggleline(autos,
3441                                                 center_pixel,
3442                                                 (int)ax,
3443                                                 (int)ay,
3444                                                 (int)ax2,
3445                                                 (int)ay2,
3446                                                 cursor_x,
3447                                                 cursor_y,
3448                                                 buttonpress);
3449                                 }
3450                         }
3451                 }
3452                 else
3453                         draw_toggleline(center_pixel + y_offset,
3454                                 (int)ax,
3455                                 (int)ay,
3456                                 (int)ax2,
3457                                 (int)ay2);
3458
3459                 ax = ax2;
3460                 ay = ay2;
3461         }while(current && current->position <= unit_end && !result);
3462
3463         if(ax < get_w() && !result)
3464         {
3465                 ax2 = get_w();
3466                 ay2 = ay;
3467                 if(!draw)
3468                 {
3469                         if(track->is_armed() /* && buttonpress != 3 */)
3470                         {
3471                                 result = test_toggleline(autos,
3472                                         center_pixel,
3473                                         (int)ax,
3474                                         (int)ay,
3475                                         (int)ax2,
3476                                         (int)ay2,
3477                                         cursor_x,
3478                                         cursor_y,
3479                                         buttonpress);
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         return result;
3490 }
3491
3492 int TrackCanvas::do_autos(Track *track,
3493                 Autos *autos,
3494                 int cursor_x,
3495                 int cursor_y,
3496                 int draw,
3497                 int buttonpress,
3498                 BC_Pixmap *pixmap,
3499                 Auto * &auto_instance,
3500                 int &rerender)
3501 {
3502         int result = 0;
3503
3504         double view_start;
3505         double unit_start;
3506         double view_end;
3507         double unit_end;
3508         double yscale;
3509         int center_pixel;
3510         double zoom_sample;
3511         double zoom_units;
3512
3513         calculate_viewport(track,
3514                 view_start,
3515                 unit_start,
3516                 view_end,
3517                 unit_end,
3518                 yscale,
3519                 center_pixel,
3520                 zoom_sample,
3521                 zoom_units);
3522
3523         Auto *current;
3524         auto_instance = 0;
3525
3526         for(current = autos->first; current && !result; current = NEXT)
3527         {
3528                 if(current->position >= unit_start && current->position < unit_end)
3529                 {
3530                         int64_t x, y;
3531                         x = (int64_t)((double)(current->position - unit_start) /
3532                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3533                         y = center_pixel - pixmap->get_h() / 2;
3534
3535                         if(!draw)
3536                         {
3537                                 if(cursor_x >= x && cursor_y >= y &&
3538                                         cursor_x < x + pixmap->get_w() &&
3539                                         cursor_y < y + pixmap->get_h())
3540                                 {
3541                                         result = 1;
3542                                         auto_instance = current;
3543
3544                                         if(buttonpress && (buttonpress != 3))
3545                                         {
3546                                                 mwindow->session->drag_auto = current;
3547                                                 mwindow->session->drag_start_position = current->position;
3548                                                 mwindow->session->drag_origin_x = cursor_x;
3549                                                 mwindow->session->drag_origin_y = cursor_y;
3550
3551                                                 double position = autos->track->from_units(current->position);
3552                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3553                                                         mwindow->edl->local_session->get_selectionend(1)) /
3554                                                         2;
3555
3556                                                 if(!shift_down())
3557                                                 {
3558                                                         mwindow->edl->local_session->set_selectionstart(position);
3559                                                         mwindow->edl->local_session->set_selectionend(position);
3560                                                 }
3561                                                 else
3562                                                 if(position < center)
3563                                                 {
3564                                                         mwindow->edl->local_session->set_selectionstart(position);
3565                                                 }
3566                                                 else
3567                                                         mwindow->edl->local_session->set_selectionend(position);
3568
3569                                                 rerender = 1;
3570                                         }
3571                                 }
3572                         }
3573                         else
3574                                 draw_pixmap(pixmap, x, y);
3575                 }
3576         }
3577
3578
3579         return result;
3580 }
3581
3582 // so this means it is always >0 when keyframe is found
3583 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3584                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3585                 KeyFrame* &keyframe_instance)
3586 {
3587         int result = 0;
3588
3589         double view_start;
3590         double unit_start;
3591         double view_end;
3592         double unit_end;
3593         double yscale;
3594         int center_pixel;
3595         double zoom_sample;
3596         double zoom_units;
3597
3598         if(!track->expand_view) return 0;
3599
3600         calculate_viewport(track,
3601                 view_start,
3602                 unit_start,
3603                 view_end,
3604                 unit_end,
3605                 yscale,
3606                 center_pixel,
3607                 zoom_sample,
3608                 zoom_units);
3609
3610
3611
3612         for(int i = 0; i < track->plugin_set.total && !result; i++)
3613         {
3614                 PluginSet *plugin_set = track->plugin_set.values[i];
3615                 int center_pixel = track->y_pixel -
3616                         mwindow->edl->local_session->track_start[pane->number];
3617                 if( track->show_titles() )
3618                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3619                 if( track->show_assets() )
3620                         center_pixel += track->data_h;
3621                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3622
3623                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3624                         plugin && !result;
3625                         plugin = (Plugin*)plugin->next)
3626                 {
3627                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3628                                 keyframe && !result;
3629                                 keyframe = (KeyFrame*)keyframe->next)
3630                         {
3631 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3632                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3633                                 {
3634                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3635                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3636
3637 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3638                                         if(!draw)
3639                                         {
3640                                                 if(cursor_x >= x && cursor_y >= y &&
3641                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3642                                                         cursor_y < y + keyframe_pixmap->get_h())
3643                                                 {
3644                                                         result = 1;
3645                                                         keyframe_plugin = plugin;
3646                                                         keyframe_instance = keyframe;
3647
3648                                                         if(buttonpress)
3649                                                         {
3650                                                                 mwindow->session->drag_auto = keyframe;
3651                                                                 mwindow->session->drag_start_position = keyframe->position;
3652                                                                 mwindow->session->drag_origin_x = cursor_x;
3653                                                                 mwindow->session->drag_origin_y = cursor_y;
3654
3655                                                                 double position = track->from_units(keyframe->position);
3656                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3657                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3658                                                                         2;
3659
3660                                                                 if(!shift_down())
3661                                                                 {
3662                                                                         mwindow->edl->local_session->set_selectionstart(position);
3663                                                                         mwindow->edl->local_session->set_selectionend(position);
3664                                                                 }
3665                                                                 else
3666                                                                 if(position < center)
3667                                                                 {
3668                                                                         mwindow->edl->local_session->set_selectionstart(position);
3669                                                                 }
3670                                                                 else
3671                                                                         mwindow->edl->local_session->set_selectionend(position);
3672                                                         }
3673                                                 }
3674                                         }
3675                                         else
3676                                                 draw_pixmap(keyframe_pixmap,
3677                                                         x,
3678                                                         y);
3679                                 }
3680                         }
3681                 }
3682         }
3683
3684
3685
3686 //      if(buttonpress && buttonpress != 3 && result)
3687 //      {
3688 //              mwindow->undo->update_undo_before();
3689 //      }
3690
3691         return result;
3692 }
3693
3694 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
3695 {
3696         Track *track = auto_keyframe->autos->track;
3697         int autogrouptype = auto_keyframe->autos->autogrouptype;
3698
3699         int center_pixel;
3700         double view_start, unit_start;
3701         double view_end, unit_end, yscale;
3702         double zoom_sample, zoom_units;
3703
3704         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3705                         yscale, center_pixel, zoom_sample, zoom_units);
3706         if( auto_keyframe->position < unit_start ||
3707             auto_keyframe->position >= unit_end )
3708                 return 0;
3709
3710         double ax = 0, ay = 0;
3711         calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0,
3712                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3713
3714         set_color(color);
3715         draw_line(ax, 0, ax, get_h());
3716
3717         char text[BCSTRLEN];
3718         if( show ) {
3719                 if( auto_keyframe->is_floatauto() ) {
3720                         FloatAuto *float_auto = (FloatAuto *)auto_keyframe;
3721                         sprintf(text, "%0.2f", float_auto->get_value());
3722                 }
3723                 else if( auto_keyframe->is_intauto() ) {
3724                         IntAuto *int_auto = (IntAuto *)auto_keyframe;
3725                         sprintf(text, "%d", int_auto->value);
3726                 }
3727                 else
3728                         show = 0;
3729         }
3730         if( show ) {
3731                 int font = MEDIUMFONT;
3732                 int tw = get_text_width(font, text)  + xS(TOOLTIP_MARGIN) * 2;
3733                 int th = get_text_height(font, text) + yS(TOOLTIP_MARGIN) * 2;
3734                 set_color(get_resources()->tooltip_bg_color);
3735                 ax += HANDLE_W/2;
3736                 ay += center_pixel + HANDLE_W/2;
3737                 draw_box(ax, ay, tw, th);
3738                 set_color(BLACK);
3739                 draw_rectangle(ax, ay, tw, th);
3740                 set_font(font);
3741                 ax += xS(TOOLTIP_MARGIN);
3742                 ay += yS(TOOLTIP_MARGIN) + get_text_ascent(font);
3743                 draw_text(ax, ay, text);
3744         }
3745         return 0;
3746 }
3747
3748 void TrackCanvas::draw_overlays()
3749 {
3750         int new_cursor, update_cursor, rerender;
3751
3752 // Move background pixmap to foreground pixmap
3753         draw_pixmap(background_pixmap, 0, 0, get_w(), get_h(), 0, 0);
3754
3755 // In/Out points
3756         draw_inout_points();
3757
3758 // Transitions
3759         draw_transitions();
3760
3761 // Plugins
3762         draw_plugins();
3763         draw_hard_edges();
3764
3765 // Loop points
3766         draw_loop_points();
3767         draw_brender_range();
3768
3769 // Highlighted areas
3770         draw_highlighting();
3771
3772 // Automation
3773         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3774
3775 // Selection cursor
3776         if(pane->cursor) pane->cursor->restore(1);
3777
3778 // Handle dragging
3779         draw_drag_handle();
3780
3781 // Playback cursor
3782         draw_playback_cursor();
3783
3784         draw_keyframe_reticle();
3785
3786         show_window(0);
3787 }
3788
3789 int TrackCanvas::activate()
3790 {
3791         if(!active)
3792         {
3793 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3794 //BC_Signals::dump_stack();
3795                 get_top_level()->deactivate();
3796                 active = 1;
3797                 set_active_subwindow(this);
3798                 pane->cursor->activate();
3799                 gui->focused_pane = pane->number;
3800         }
3801         return 0;
3802 }
3803
3804 int TrackCanvas::deactivate()
3805 {
3806         if(active)
3807         {
3808                 active = 0;
3809                 pane->cursor->deactivate();
3810         }
3811         return 0;
3812 }
3813
3814
3815 void TrackCanvas::update_drag_handle()
3816 {
3817         double new_position;
3818         int cursor_x = get_cursor_x();
3819
3820         new_position =
3821                 (double)(cursor_x +
3822                 mwindow->edl->local_session->view_start[pane->number]) *
3823                 mwindow->edl->local_session->zoom_sample /
3824                 mwindow->edl->session->sample_rate;
3825
3826         new_position =
3827                 mwindow->edl->align_to_frame(new_position, 0);
3828
3829         if( ctrl_down() && alt_down() ) {
3830 #define snapper(v) do { \
3831         double pos = (v); \
3832         if( pos < 0 ) break; \
3833         double dist = fabs(new_position - pos); \
3834         if( dist >= snap_min ) break; \
3835         snap_position = pos;  snap_min = dist; \
3836 } while(0)
3837                 double snap_position = new_position;
3838                 double snap_min = DBL_MAX;
3839                 if( mwindow->edl->local_session->inpoint_valid() )
3840                         snapper(mwindow->edl->local_session->get_inpoint());
3841                 if( mwindow->edl->local_session->outpoint_valid() )
3842                         snapper(mwindow->edl->local_session->get_outpoint());
3843                 snapper(mwindow->edl->prev_edit(new_position));
3844                 snapper(mwindow->edl->next_edit(new_position));
3845                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3846                 if( prev_label ) snapper(prev_label->position);
3847                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3848                 if( next_label ) snapper(next_label->position);
3849                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3850                         mwindow->edl->local_session->zoom_sample -
3851                         mwindow->edl->local_session->view_start[pane->number];
3852                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3853                         snapped = 1;
3854                         new_position = snap_position;
3855                 }
3856 #undef snapper
3857         }
3858
3859         if(new_position != mwindow->session->drag_position)
3860         {
3861                 mwindow->session->drag_position = new_position;
3862                 gui->mainclock->update(new_position);
3863                 timebar_position = new_position;
3864                 gui->update_timebar(0);
3865
3866                 EDL *edl = new EDL;
3867                 edl->create_objects();
3868                 edl->copy_all(mwindow->edl);
3869                 MainSession *session = mwindow->session;
3870                 int handle_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3871                 edl->modify_edithandles(session->drag_start,
3872                         session->drag_position, session->drag_handle, handle_mode,
3873                         edl->session->labels_follow_edits,
3874                         edl->session->plugins_follow_edits,
3875                         edl->session->autos_follow_edits,
3876                         !session->drag_edit ? 0 : session->drag_edit->group_id);
3877
3878                 double position = -1;
3879                 int show_edge = !session->drag_handle ? 1 : 2;
3880                 switch( handle_mode ) {
3881                 case MOVE_RIPPLE:
3882                 case MOVE_EDGE:
3883                         position = session->drag_handle ?
3884                                 session->drag_position : session->drag_start;
3885                         show_edge = 3 - show_edge;
3886                         break;
3887                 case MOVE_ROLL:
3888                 case MOVE_SLIDE:
3889                         position = session->drag_position;
3890                         break;
3891                 case MOVE_SLIP:
3892                         position = session->drag_start;
3893                         show_edge = 3 - show_edge;
3894                         break;
3895                 }
3896
3897                 if( position < 0 ) position = 0;
3898                 Track *track = session->drag_handle_track();
3899                 int64_t pos = track->to_units(position, 0);
3900                 render_handle_frame(edl, pos, shift_down() ? 0 : show_edge);
3901                 edl->remove_user();
3902         }
3903 }
3904
3905 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3906 {
3907         int result = 0;
3908         int64_t left = pos-1;
3909         if( left < 0 ) left = 0;
3910         switch( mode ) {
3911         case 0: {
3912                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3913                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3914                 TransportCommand command;
3915                 command.command = CURRENT_FRAME;
3916                 command.get_edl()->copy_all((EDL *)edl);
3917                 command.change_type = CHANGE_ALL;
3918                 command.realtime = 0;
3919                 Preferences *preferences = mwindow->preferences;
3920                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3921                 CICache *video_cache = new CICache(preferences);
3922                 render_engine->set_vcache(video_cache);
3923                 render_engine->arm_command(&command);
3924                 VRender *vrender = render_engine->vrender;
3925                 result = vrender &&
3926                         !vrender->process_buffer(&vlt, left, 0) &&
3927                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3928                 delete render_engine;
3929                 video_cache->remove_user();
3930                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3931                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3932                 float ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2;
3933                 canvas->get_transfers(edl, ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2);
3934                 float cw = canvas->w/2, ch = canvas->h/2;
3935                 float cdx = (cx2 - cx1)/2, cdy = (cy2 - cy1)/2;
3936                 int cx = cx1/2, cy = cy1/2 + ch/2;
3937                 int ow = ox2 - ox2, oh = oy2 - oy1;
3938                 BC_WindowBase *window = canvas->get_canvas();
3939                 window->set_color(BLACK);
3940                 window->clear_box(0,0, window->get_w(),window->get_h());
3941                 window->draw_vframe(&vlt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);  cx += cw;
3942                 window->draw_vframe(&vrt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);
3943                 window->flash(1);
3944                 mwindow->cwindow->gui->unlock_window();
3945                 break; }
3946         case 1:
3947         case 2: {
3948                 Track *track = mwindow->session->drag_handle_track();
3949                 double position = track->from_units(mode == 1 ? left : pos);
3950                 if( position < 0 ) position = 0;
3951                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3952                 if( playback_engine->is_playing_back )
3953                         playback_engine->stop_playback(1);
3954                 edl->local_session->set_selectionstart(position);
3955                 edl->local_session->set_selectionend(position);
3956                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3957                 break; }
3958         }
3959         return result;
3960 }
3961
3962 int TrackCanvas::update_drag_edit()
3963 {
3964         int result = 0;
3965
3966
3967
3968         return result;
3969 }
3970
3971 int TrackCanvas::get_drag_values(float *percentage,
3972         int64_t *position,
3973         int do_clamp,
3974         int cursor_x,
3975         int cursor_y,
3976         Auto *current)
3977 {
3978         //int x = cursor_x - mwindow->session->drag_origin_x;
3979         //int y = cursor_y - mwindow->session->drag_origin_y;
3980         *percentage = 0;
3981         *position = 0;
3982
3983         if(!current->autos->track->is_armed()) return 1;
3984         double view_start;
3985         double unit_start;
3986         double view_end;
3987         double unit_end;
3988         double yscale;
3989         int center_pixel;
3990         double zoom_sample;
3991         double zoom_units;
3992
3993         calculate_viewport(current->autos->track,
3994                 view_start,
3995                 unit_start,
3996                 view_end,
3997                 unit_end,
3998                 yscale,
3999                 center_pixel,
4000                 zoom_sample,
4001                 zoom_units);
4002
4003         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
4004                 yscale +
4005                 mwindow->session->drag_start_percentage;
4006         if(do_clamp) CLAMP(*percentage, 0, 1);
4007
4008         *position = Units::to_int64(zoom_units *
4009                 (cursor_x - mwindow->session->drag_origin_x) +
4010                 mwindow->session->drag_start_position + 0.5);
4011
4012         if((do_clamp) && *position < 0) *position = 0;
4013         return 0;
4014 }
4015
4016
4017 #define UPDATE_DRAG_HEAD(do_clamp) \
4018         int result = 0, center_pixel; \
4019         if(!current->autos->track->is_armed()) return 0; \
4020         double view_start, unit_start, view_end, unit_end; \
4021         double yscale, zoom_sample, zoom_units; \
4022  \
4023         calculate_viewport(current->autos->track,  \
4024                 view_start, unit_start, view_end, unit_end, \
4025                 yscale, center_pixel, zoom_sample, zoom_units); \
4026  \
4027         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
4028                 yscale +  mwindow->session->drag_start_percentage; \
4029         if(do_clamp) CLAMP(percentage, 0, 1); \
4030  \
4031         int64_t position = Units::to_int64(zoom_units * \
4032                 (cursor_x - mwindow->session->drag_origin_x) + \
4033                 mwindow->session->drag_start_position); \
4034         if((do_clamp) && position < 0) position = 0;
4035
4036
4037 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
4038 {
4039         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
4040
4041         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
4042         int x = cursor_x - mwindow->session->drag_origin_x;
4043         int y = cursor_y - mwindow->session->drag_origin_y;
4044         float value, old_value;
4045
4046         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
4047 // not really editing the node, rather start editing the curve
4048 // tangent is editable and drag movement is significant
4049                 if( (FloatAuto::FREE == current->curve_mode ||
4050                      FloatAuto::TFREE==current->curve_mode ||
4051                      FloatAuto::BUMP==current->curve_mode) &&
4052                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
4053                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
4054         }
4055
4056         switch(mwindow->session->drag_handle) {
4057         case 0: // Center
4058 // Snap to nearby values
4059                 old_value = current->get_value();
4060                 if(shift_down()) {
4061                         double distance1=-1, distance2=-1;
4062                         if(current->previous) {
4063                                 int autogrouptype = current->previous->autos->autogrouptype;
4064                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4065                                 double value1 = ((FloatAuto*)current->previous)->get_value(0);
4066                                 distance1 = fabs(value - value1);
4067                                 current->set_value(value1, 1);
4068                         }
4069
4070                         if(current->next) {
4071                                 int autogrouptype = current->next->autos->autogrouptype;
4072                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4073                                 double value2 = ((FloatAuto*)current->next)->get_value(1);
4074                                 distance2 = fabs(value - value2);
4075                                 if(!current->previous || distance2 < distance1) {
4076                                         current->set_value(value2, 0);
4077                                 }
4078                         }
4079
4080                         if(!current->previous && !current->next) {
4081                                 current->set_value(((FloatAutos*)current->autos)->default_, 0);
4082                         }
4083                         value = current->get_value();
4084                 }
4085                 else {
4086                         int autogrouptype = current->autos->autogrouptype;
4087                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
4088                 }
4089
4090                 if(alt_down() && !shift_down())
4091 // ALT constrains movement: fixed position, only changing the value
4092                         position = mwindow->session->drag_start_position;
4093
4094                 if(value != old_value || position != current->position) {
4095                         result = 1;
4096                         float change = value - old_value;
4097                         current->adjust_to_new_coordinates(position, value);
4098                         update_ganged_autos(change, current->autos->track, current);
4099                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4100                         show_message(current, color, ", %.2f", current->get_value());
4101                 }
4102                 break;
4103
4104 // In control
4105         case 1: {
4106                 int autogrouptype = current->autos->autogrouptype;
4107                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4108                 if(value != current->get_control_in_value())
4109                 {
4110                         result = 1;
4111                         // note: (position,value) need not be at the location of the ctrl point,
4112                         // but could be somewhere in between on the curve (or even outward or
4113                         // on the opposit side). We set the new control point such as
4114                         // to point the curve through (position,value)
4115                         current->set_control_in_value(
4116                                 value * levered_position(position - current->position,
4117                                                          current->get_control_in_position()));
4118                         update_ganged_autos(0, current->autos->track, current);
4119                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4120                         show_message(current, color, ", %.2f", current->get_control_in_value());
4121                 }
4122                 break; }
4123
4124 // Out control
4125         case 2: {
4126                 int autogrouptype = current->autos->autogrouptype;
4127                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4128                 if(value != current->get_control_out_value()) {
4129                         result = 1;
4130                         current->set_control_out_value(
4131                                 value * levered_position(position - current->position,
4132                                                          current->get_control_out_position()));
4133                         update_ganged_autos(0, current->autos->track, current);
4134                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4135                         show_message(current, color, ", %.2f", current->get_control_out_value());
4136                 }
4137                 break; }
4138         }
4139
4140         return result;
4141 }
4142
4143 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4144 {
4145         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4146
4147         UPDATE_DRAG_HEAD(1);
4148         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4149
4150         if(value != current->value || position != current->position)
4151         {
4152                 result = 1;
4153                 current->value = value;
4154                 current->position = position;
4155                 show_message(current, -1, ", %d", current->value);
4156         }
4157
4158         return result;
4159 }
4160
4161 // Autos which can't change value through dragging.
4162
4163 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4164 {
4165         Auto *current = (Auto*)mwindow->session->drag_auto;
4166
4167         UPDATE_DRAG_HEAD(1)
4168         if(position != current->position)
4169         {
4170                 result = 1;
4171                 current->position = position;
4172                 show_message(current, -1, "");
4173
4174                 double position_f = current->autos->track->from_units(current->position);
4175                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4176                         mwindow->edl->local_session->get_selectionend(1)) /
4177                         2;
4178                 if(!shift_down())
4179                 {
4180                         mwindow->edl->local_session->set_selectionstart(position_f);
4181                         mwindow->edl->local_session->set_selectionend(position_f);
4182                 }
4183                 else
4184                 if(position_f < center_f)
4185                 {
4186                         mwindow->edl->local_session->set_selectionstart(position_f);
4187                 }
4188                 else
4189                         mwindow->edl->local_session->set_selectionend(position_f);
4190         }
4191
4192
4193         return result;
4194 }
4195
4196 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4197 {
4198         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4199
4200         UPDATE_DRAG_HEAD(1)
4201         if(position != current->position)
4202         {
4203 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4204                 Track *track = current->autos->track;
4205                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4206                 PluginSet *pluginset;
4207                 Plugin *plugin = 0;
4208 // figure out the correct pluginset & correct plugin
4209                 int found = 0;
4210                 for(int i = 0; i < track->plugin_set.total; i++)
4211                 {
4212                         pluginset = track->plugin_set.values[i];
4213                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4214                         {
4215                                 KeyFrames *keyframes = plugin->keyframes;
4216                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4217                                         currentkeyframe;
4218                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4219                                 {
4220                                         if (currentkeyframe == current)
4221                                         {
4222                                                 found = 1;
4223                                                 break;
4224                                         }
4225
4226                                 }
4227                                 if (found) break;
4228                         }
4229                         if (found) break;
4230                 }
4231
4232                 mwindow->session->plugin_highlighted = plugin;
4233                 mwindow->session->track_highlighted = track;
4234                 result = 1;
4235                 current->position = position;
4236                 show_message(current, -1, "");
4237
4238                 double position_f = current->autos->track->from_units(current->position);
4239                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4240                         mwindow->edl->local_session->get_selectionend(1)) /
4241                         2;
4242                 if(!shift_down())
4243                 {
4244                         mwindow->edl->local_session->set_selectionstart(position_f);
4245                         mwindow->edl->local_session->set_selectionend(position_f);
4246                 }
4247                 else
4248                 if(position_f < center_f)
4249                 {
4250                         mwindow->edl->local_session->set_selectionstart(position_f);
4251                 }
4252                 else
4253                         mwindow->edl->local_session->set_selectionend(position_f);
4254         }
4255
4256
4257         return result;
4258 }
4259
4260 void TrackCanvas::update_drag_caption()
4261 {
4262         switch(mwindow->session->current_operation)
4263         {
4264                 case DRAG_FADE:
4265
4266                         break;
4267         }
4268 }
4269
4270
4271
4272 int TrackCanvas::cursor_update(int in_motion)
4273 {
4274         int result = 0;
4275         int cursor_x = 0;
4276         int cursor_y = 0;
4277         int update_clock = 0;
4278         int update_zoom = 0;
4279         int update_scroll = 0;
4280         int update_overlay = 0;
4281         int update_cursor = 0;
4282         int rerender = 0;
4283         double position = 0.;
4284 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4285
4286 // Default cursor
4287         int new_cursor =
4288                 arrow_mode() ? ARROW_CURSOR :
4289                 ibeam_mode() ? IBEAM_CURSOR : 0;
4290
4291         switch(mwindow->session->current_operation)
4292         {
4293                 case DRAG_EDITHANDLE1:
4294 // Outside threshold.  Upgrade status
4295                         if(active)
4296                         {
4297                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4298                                 {
4299                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
4300                                         update_overlay = 1;
4301                                 }
4302                         }
4303                         break;
4304
4305                 case DRAG_EDITHANDLE2:
4306                         if(active)
4307                         {
4308                                 update_drag_handle();
4309                                 update_overlay = 1;
4310                         }
4311                         break;
4312
4313                 case DRAG_PLUGINHANDLE1:
4314                         if(active)
4315                         {
4316                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4317                                 {
4318                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4319                                         update_overlay = 1;
4320                                 }
4321                         }
4322                         break;
4323
4324                 case DRAG_PLUGINHANDLE2:
4325                         if(active)
4326                         {
4327                                 update_drag_handle();
4328                                 update_overlay = 1;
4329                         }
4330                         break;
4331
4332 // Rubber band curves
4333                 case DRAG_FADE:
4334                 case DRAG_SPEED:
4335                 case DRAG_CZOOM:
4336                 case DRAG_PZOOM:
4337                 case DRAG_CAMERA_X:
4338                 case DRAG_CAMERA_Y:
4339                 case DRAG_CAMERA_Z:
4340                 case DRAG_PROJECTOR_X:
4341                 case DRAG_PROJECTOR_Y:
4342                 case DRAG_PROJECTOR_Z:
4343                         if(active) rerender = update_overlay =
4344                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4345                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4346                                 mwindow->speed_after(!in_motion ? 1 : 0);
4347                         break;
4348
4349                 case DRAG_PLAY:
4350                         if(active) rerender = update_overlay =
4351                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4352                         break;
4353
4354                 case DRAG_MUTE:
4355                         if(active) rerender = update_overlay =
4356                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4357                         break;
4358
4359 // Keyframe icons are sticky
4360                 case DRAG_PAN_PRE:
4361                 case DRAG_MASK_PRE:
4362                 case DRAG_MODE_PRE:
4363                 case DRAG_PLUGINKEY_PRE:
4364                         if(active) {
4365                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4366                                         mwindow->session->current_operation++;
4367                                         update_overlay = 1;
4368
4369                                         mwindow->undo->update_undo_before();
4370                                 }
4371                         }
4372                         break;
4373
4374                 case DRAG_PAN:
4375                 case DRAG_MASK:
4376                 case DRAG_MODE:
4377                         if(active) rerender = update_overlay =
4378                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4379                         break;
4380
4381                 case DRAG_PLUGINKEY:
4382                         if(active) rerender = update_overlay =
4383                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4384                         break;
4385
4386                 case SELECT_REGION:
4387                         if(active) {
4388                                 cursor_x = get_cursor_x();
4389                                 cursor_y = get_cursor_y();
4390                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4391                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4392
4393                                 position = mwindow->edl->align_to_frame(position, 0);
4394                                 position = MAX(position, 0);
4395
4396                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4397                                 double end = mwindow->edl->local_session->get_selectionend(1);
4398                                 if(position < selection_midpoint) {
4399                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4400                                         mwindow->edl->local_session->set_selectionstart(position);
4401                                 }
4402                                 else {
4403                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4404                                         mwindow->edl->local_session->set_selectionend(position);
4405                                 }
4406         // Que the CWindow
4407                                 gui->unlock_window();
4408                                 int dir =
4409                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4410                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4411                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4412                                 gui->lock_window("TrackCanvas::cursor_update 1");
4413         // Update the faders
4414                                 mwindow->update_plugin_guis();
4415                                 gui->update_patchbay();
4416
4417                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4418
4419                                 gui->hide_cursor(0);
4420                                 gui->draw_cursor(1);
4421                                 gui->update_timebar(0);
4422                                 gui->flash_canvas(1);
4423                                 result = 1;
4424                                 update_clock = 1;
4425                                 update_zoom = 1;
4426                                 update_scroll = 1;
4427                         }
4428                         break;
4429
4430                 case DROP_TARGETING:
4431                         new_cursor = GRABBED_CURSOR;
4432                         result = 1;
4433                         break;
4434
4435                 default:
4436                         if(is_event_win() && cursor_inside()) {
4437 // Update clocks
4438                                 cursor_x = get_cursor_x();
4439                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4440                                 position = mwindow->edl->align_to_frame(position, 0);
4441                                 update_clock = 1;
4442 // set all timebars
4443                                 for(int i = 0; i < TOTAL_PANES; i++)
4444                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4445
4446 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4447                                 gui->update_timebar(0);
4448 // Update cursor
4449                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4450                                                 0, new_cursor, update_cursor)) break;
4451                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4452                                         0, 0, new_cursor, update_cursor, rerender)) break;
4453                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4454                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4455 // Plugin boundaries
4456                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4457                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4458                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4459                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4460                         }
4461                         break;
4462         }
4463
4464 //printf("TrackCanvas::cursor_update 1\n");
4465         if(update_cursor && new_cursor != get_cursor())
4466         {
4467                 set_cursor(new_cursor, 0, 1);
4468         }
4469
4470 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4471         if(rerender && render_timer->get_difference() > 0.25 ) {
4472                 render_timer->update();
4473                 mwindow->restart_brender();
4474                 mwindow->sync_parameters(CHANGE_PARAMS);
4475                 mwindow->update_plugin_guis();
4476                 gui->unlock_window();
4477                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4478                 gui->lock_window("TrackCanvas::cursor_update 2");
4479         }
4480         if(rerender) {
4481 // Update faders
4482                 gui->update_patchbay();
4483         }
4484
4485
4486         if(update_clock) {
4487                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4488                         gui->mainclock->update(position);
4489         }
4490
4491         if(update_zoom) {
4492                 gui->zoombar->update();
4493         }
4494
4495         if(update_scroll) {
4496                 if(!drag_scroll &&
4497                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4498                         start_dragscroll();
4499                 else
4500                 if(drag_scroll &&
4501                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4502                         stop_dragscroll();
4503         }
4504
4505         if(update_overlay) {
4506                 gui->draw_overlays(1);
4507         }
4508
4509 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4510         return result;
4511 }
4512
4513 int TrackCanvas::cursor_motion_event()
4514 {
4515         return cursor_update(1);
4516 }
4517
4518 void TrackCanvas::start_dragscroll()
4519 {
4520         if(!drag_scroll) {
4521                 drag_scroll = 1;
4522                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4523 //printf("TrackCanvas::start_dragscroll 1\n");
4524         }
4525 }
4526
4527 void TrackCanvas::stop_dragscroll()
4528 {
4529         if(drag_scroll) {
4530                 drag_scroll = 0;
4531                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4532 //printf("TrackCanvas::stop_dragscroll 1\n");
4533         }
4534 }
4535
4536 int TrackCanvas::repeat_event(int64_t duration)
4537 {
4538         if(!drag_scroll) return 0;
4539         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4540
4541         int sample_movement = 0;
4542         int track_movement = 0;
4543         int64_t x_distance = 0;
4544         int64_t y_distance = 0;
4545         double position = 0;
4546         int result = 0;
4547
4548         switch(mwindow->session->current_operation) {
4549                 case SELECT_REGION:
4550 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4551                 if(get_cursor_x() > get_w()) {
4552                                 x_distance = get_cursor_x() - get_w();
4553                                 sample_movement = 1;
4554                 }
4555                 else if(get_cursor_x() < 0) {
4556                         x_distance = get_cursor_x();
4557                         sample_movement = 1;
4558                 }
4559
4560                 if(get_cursor_y() > get_h()) {
4561                         y_distance = get_cursor_y() - get_h();
4562                         track_movement = 1;
4563                 }
4564                 else if(get_cursor_y() < 0) {
4565                         y_distance = get_cursor_y();
4566                         track_movement = 1;
4567                 }
4568                 result = 1;
4569                 break;
4570         }
4571
4572         if(sample_movement) {
4573                 position = (double)(get_cursor_x() +
4574                         mwindow->edl->local_session->view_start[pane->number] +
4575                         x_distance) *
4576                         mwindow->edl->local_session->zoom_sample /
4577                         mwindow->edl->session->sample_rate;
4578                 position = mwindow->edl->align_to_frame(position, 0);
4579                 position = MAX(position, 0);
4580
4581 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4582                 switch(mwindow->session->current_operation) {
4583                 case SELECT_REGION:
4584                         if(position < selection_midpoint) {
4585                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4586                                 mwindow->edl->local_session->set_selectionstart(position);
4587 // Que the CWindow
4588                                 gui->unlock_window();
4589                                 mwindow->cwindow->update(1, 0, 0);
4590                                 gui->lock_window("TrackCanvas::repeat_event");
4591 // Update the faders
4592                                 mwindow->update_plugin_guis();
4593                                 gui->update_patchbay();
4594                         }
4595                         else {
4596                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4597                                 mwindow->edl->local_session->set_selectionend(position);
4598 // Don't que the CWindow
4599                         }
4600                         break;
4601                 }
4602
4603                 mwindow->samplemovement(
4604                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4605                         pane->number);
4606         }
4607
4608         if(track_movement) {
4609                 mwindow->trackmovement(y_distance, pane->number);
4610         }
4611
4612         return result;
4613 }
4614
4615 int TrackCanvas::button_release_event()
4616 {
4617         int redraw = -1, update_overlay = 0;
4618         int result = 0, load_flags = 0;
4619
4620 // printf("TrackCanvas::button_release_event %d\n",
4621 // mwindow->session->current_operation);
4622         if(active) {
4623                 switch(mwindow->session->current_operation) {
4624                 case DRAG_EDITHANDLE2:
4625                         mwindow->session->current_operation = NO_OPERATION;
4626                         drag_scroll = 0;
4627                         result = 1;
4628
4629                         end_edithandle_selection();
4630                         break;
4631
4632                 case DRAG_EDITHANDLE1:
4633                         mwindow->session->current_operation = NO_OPERATION;
4634                         drag_scroll = 0;
4635                         result = 1;
4636                         break;
4637
4638                 case DRAG_PLUGINHANDLE2:
4639                         mwindow->session->current_operation = NO_OPERATION;
4640                         drag_scroll = 0;
4641                         result = 1;
4642
4643                         end_pluginhandle_selection();
4644                         break;
4645
4646                 case DRAG_PLUGINHANDLE1:
4647                         mwindow->session->current_operation = NO_OPERATION;
4648                         drag_scroll = 0;
4649                         result = 1;
4650                         break;
4651
4652                 case DRAG_SPEED:
4653                         redraw = FORCE_REDRAW;
4654                         load_flags |= LOAD_EDITS;
4655                 case DRAG_FADE:
4656 // delete the drag_auto_gang first and remove out of order keys
4657                         clear_ganged_autos();
4658                 case DRAG_CZOOM:
4659                 case DRAG_PZOOM:
4660                 case DRAG_PLAY:
4661                 case DRAG_MUTE:
4662                 case DRAG_MASK:
4663                 case DRAG_MODE:
4664                 case DRAG_PAN:
4665                 case DRAG_CAMERA_X:
4666                 case DRAG_CAMERA_Y:
4667                 case DRAG_CAMERA_Z:
4668                 case DRAG_PROJECTOR_X:
4669                 case DRAG_PROJECTOR_Y:
4670                 case DRAG_PROJECTOR_Z:
4671                 case DRAG_PLUGINKEY:
4672                         load_flags |= LOAD_AUTOMATION;
4673                         mwindow->session->current_operation = NO_OPERATION;
4674                         mwindow->session->drag_handle = 0;
4675 // Remove any out-of-order keyframe
4676                         if(mwindow->session->drag_auto) {
4677                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4678                                                 mwindow->session->drag_auto);
4679 //                              mwindow->session->drag_auto->autos->optimize();
4680                                 update_overlay = 1;
4681                         }
4682
4683                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4684                         result = 1;
4685                         break;
4686
4687                 case DRAG_EDIT:
4688                 case DRAG_GROUP:
4689                 case DRAG_AEFFECT_COPY:
4690                 case DRAG_VEFFECT_COPY:
4691 // Trap in drag stop
4692                         break;
4693
4694                 case DROP_TARGETING: {
4695                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4696                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4697                         drag_cursor_motion(cursor_x, cursor_y,
4698                                 &track, &edit, &pluginset, &plugin);
4699                         double position =
4700                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4701                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4702                         mwindow->session->current_operation = NO_OPERATION;
4703                         result = 1;
4704                         break; }
4705
4706                 case GROUP_TOGGLE: {
4707                         Edit *edit = mwindow->session->drag_edit;
4708                         if( edit ) {
4709                                 if( shift_down() && edit->is_selected ) {
4710                                         if( edit->group_id > 0 ) {
4711                                                 mwindow->edl->tracks->clear_selected_edits();
4712                                                 mwindow->edl->tracks->del_group(edit->group_id);
4713                                         }
4714                                         else {
4715                                                 int id = mwindow->session->group_number++;
4716                                                 mwindow->edl->tracks->new_group(id);
4717                                         }
4718                                         redraw = 0;
4719                                 }
4720                                 else {
4721                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4722                                                 mwindow->edl->tracks->clear_selected_edits();
4723                                         edit->set_selected(-1);
4724                                 }
4725                         }
4726                         mwindow->session->current_operation = NO_OPERATION;
4727                         update_overlay = 1;
4728                         result = 1;
4729                         drag_scroll = 0;
4730                         break; }
4731
4732                 default:
4733                         if( mwindow->session->current_operation ) {
4734 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4735 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4736 //                              }
4737
4738                                 mwindow->session->current_operation = NO_OPERATION;
4739                                 drag_scroll = 0;
4740                                 //result = 0;
4741                                 break;
4742                         }
4743                         break;
4744                 }
4745         }
4746
4747         if( mwindow->edl->local_session->zoombar_showautocolor >= 0 )
4748                 mwindow->gui->zoombar->update_autozoom(-1);
4749
4750         if (result)
4751                 cursor_update(0);
4752
4753         if(update_overlay) {
4754                 gui->draw_overlays(1);
4755         }
4756         if(redraw >= 0) {
4757                 gui->draw_canvas(redraw, 0);
4758                 gui->flash_canvas(1);
4759         }
4760         return result;
4761 }
4762
4763 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4764         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4765 {
4766         Edit *edit_result = 0;
4767         int handle_result = -1;
4768         int result = 0;
4769
4770         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4771                 if( track->is_hidden() ) continue;
4772                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4773                         int64_t edit_x, edit_y, edit_w, edit_h;
4774                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4775
4776                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4777                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4778                                 if( cursor_x < edit_x + HANDLE_W ) {
4779                                         edit_result = edit;
4780                                         handle_result = 0;
4781                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4782                                             track->show_assets() ) {
4783                                                 new_cursor = DOWNLEFT_RESIZE;
4784                                                 if( button_press == LEFT_BUTTON )
4785                                                         result = -1;
4786                                         }
4787                                         else
4788                                                 result = 1;
4789                                 }
4790                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4791                                         edit_result = edit;
4792                                         handle_result = 1;
4793                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4794                                             track->show_assets() ) {
4795                                                 new_cursor = DOWNRIGHT_RESIZE;
4796                                                 if( button_press == LEFT_BUTTON )
4797                                                         result = -1;
4798                                         }
4799                                         else
4800                                                 result = 1;
4801                                 }
4802                         }
4803                 }
4804         }
4805
4806         if( result > 0 ) {
4807                 int group_id = edit_result->group_id;
4808                 if( group_id > 0 ) {
4809                         Track *track = edit_result->track;
4810                         Edit *left = 0, *right = 0;
4811                         double start = DBL_MAX, end = DBL_MIN;
4812                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4813                                 if( edit->group_id != group_id ) continue;
4814                                 double edit_start = edit->track->from_units(edit->startproject);
4815                                 if( edit_start < start ) { start = edit_start;  left = edit; }
4816                                 double edit_end = edit->track->from_units(edit->startproject+edit->length);
4817                                 if( edit_end > end ) { end = edit_end;  right = edit; }
4818                         }
4819                         Edit *edit = !handle_result ? left : right;
4820                         if( edit != edit_result )
4821                                 result = 0;
4822                 }
4823         }
4824
4825         update_cursor = 1;
4826         if( result > 0 ) {
4827                 double position = 0;
4828                 if( handle_result == 0 ) {
4829                         position = edit_result->track->from_units(edit_result->startproject);
4830                         new_cursor = LEFT_CURSOR;
4831                 }
4832                 else if( handle_result == 1 ) {
4833                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4834                         new_cursor = RIGHT_CURSOR;
4835                 }
4836
4837 // Reposition cursor
4838                 if( button_press ) {
4839                         mwindow->session->drag_edit = edit_result;
4840                         mwindow->session->drag_handle = handle_result;
4841                         mwindow->session->drag_button = get_buttonpress() - 1;
4842                         mwindow->session->drag_position = position;
4843                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4844                         mwindow->session->drag_origin_x = get_cursor_x();
4845                         mwindow->session->drag_origin_y = get_cursor_y();
4846                         mwindow->session->drag_start = position;
4847
4848                         rerender = start_selection(position);
4849                         update_overlay = 1;
4850                 }
4851         }
4852         else if( result < 0 && !edit_result->silence() ) {
4853                 mwindow->undo->update_undo_before();
4854                 if( !shift_down() ) {
4855                         if( handle_result == 0 )
4856                                 edit_result->hard_left = !edit_result->hard_left;
4857                         else if( handle_result == 1 )
4858                                 edit_result->hard_right = !edit_result->hard_right;
4859                 }
4860                 else {
4861                         int status = handle_result == 0 ? edit_result->hard_left :
4862                                      handle_result == 1 ? edit_result->hard_right : 0;
4863                         int new_status = !status;
4864                         int64_t edit_edge = edit_result->startproject;
4865                         if( handle_result == 1 ) edit_edge += edit_result->length;
4866                         double edge_position = edit_result->track->from_units(edit_edge);
4867                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4868                                 if( track->is_hidden() ) continue;
4869                                 int64_t track_position = track->to_units(edge_position, 1);
4870                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4871                                 if( left_edit ) {
4872                                         int64_t left_edge = left_edit->startproject;
4873                                         double left_position = track->from_units(left_edge);
4874                                         if( EQUIV(edge_position, left_position) ) {
4875                                                 left_edit->hard_left = new_status;
4876                                                 if( left_edit->previous )
4877                                                         left_edit->previous->hard_right = new_status;
4878                                         }
4879                                 }
4880                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4881                                 if( right_edit ) {
4882                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4883                                         double right_position = track->from_units(right_edge);
4884                                         if( EQUIV(edge_position, right_position) ) {
4885                                                 right_edit->hard_right = new_status;
4886                                                 if( right_edit->next )
4887                                                         right_edit->next->hard_left = new_status;
4888                                         }
4889                                 }
4890                         }
4891                 }
4892                 rerender = update_overlay = 1;
4893                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4894                 result = 1;
4895         }
4896
4897         return result;
4898 }
4899
4900 int TrackCanvas::do_plugin_handles(int cursor_x,
4901         int cursor_y,
4902         int button_press,
4903         int &rerender,
4904         int &update_overlay,
4905         int &new_cursor,
4906         int &update_cursor)
4907 {
4908         Plugin *plugin_result = 0;
4909         int handle_result = 0;
4910         int result = 0;
4911
4912         for(Track *track = mwindow->edl->tracks->first;
4913                 track && !result;
4914                 track = track->next) {
4915                 if( track->is_hidden() ) continue;
4916                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4917                         PluginSet *plugin_set = track->plugin_set.values[i];
4918                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4919                                 plugin && !result;
4920                                 plugin = (Plugin*)plugin->next) {
4921                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4922                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4923
4924                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4925                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4926                                         if(cursor_x < plugin_x + HANDLE_W) {
4927                                                 plugin_result = plugin;
4928                                                 handle_result = 0;
4929                                                 result = 1;
4930                                         }
4931                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4932                                                 plugin_result = plugin;
4933                                                 handle_result = 1;
4934                                                 result = 1;
4935                                         }
4936                                 }
4937                         }
4938
4939                         if(result && shift_down())
4940                                 mwindow->session->trim_edits = plugin_set;
4941                 }
4942         }
4943
4944         update_cursor = 1;
4945         if(result) {
4946                 double position = 0;
4947                 if(handle_result == 0) {
4948                         position = plugin_result->track->from_units(plugin_result->startproject);
4949                         new_cursor = LEFT_CURSOR;
4950                 }
4951                 else if(handle_result == 1) {
4952                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4953                         new_cursor = RIGHT_CURSOR;
4954                 }
4955
4956                 if(button_press) {
4957                         mwindow->session->drag_plugin = plugin_result;
4958                         mwindow->session->drag_handle = handle_result;
4959                         mwindow->session->drag_button = get_buttonpress() - 1;
4960                         mwindow->session->drag_position = position;
4961                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4962                         mwindow->session->drag_origin_x = get_cursor_x();
4963                         mwindow->session->drag_origin_y = get_cursor_y();
4964                         mwindow->session->drag_start = position;
4965
4966                         rerender = start_selection(position);
4967                         update_overlay = 1;
4968                 }
4969         }
4970
4971         return result;
4972 }
4973
4974
4975 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4976 {
4977         int result = 0;
4978
4979         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4980         drag_cursor_motion(cursor_x, cursor_y,
4981                 &track, &edit, &pluginset, &plugin);
4982
4983         if( button_press && track ) {
4984                 switch( get_buttonpress() ) {
4985                 case RIGHT_BUTTON: {
4986                         double position =
4987                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4988                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
4989                         mwindow->session->current_operation = NO_OPERATION;
4990                         result = 1;
4991                         break; }
4992                 case MIDDLE_BUTTON:
4993                         set_cursor(GRABBED_CURSOR, 0, 1);
4994                         mwindow->session->current_operation = DROP_TARGETING;
4995                         result = 1;
4996                         break;
4997                 }
4998         }
4999
5000         return result;
5001 }
5002
5003 int TrackCanvas::arrow_mode()
5004 {
5005         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
5006 }
5007 int TrackCanvas::ibeam_mode()
5008 {
5009         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
5010 }
5011
5012 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
5013         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
5014 {
5015         int result = 0;
5016
5017         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
5018                 if( track->is_hidden() ) continue;
5019                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
5020                         int64_t edit_x, edit_y, edit_w, edit_h;
5021                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
5022
5023 // Cursor inside a track
5024 // Cursor inside an edit
5025                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
5026                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
5027                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
5028                                         if( get_double_click() ) {
5029                                                 mwindow->edl->tracks->clear_selected_edits();
5030                                                 edit->select_affected_edits(1, -1);
5031                                                 double start = edit->track->from_units(edit->startproject);
5032                                                 start = mwindow->edl->align_to_frame(start, 0);
5033                                                 mwindow->edl->local_session->set_selectionstart(start);
5034                                                 double end = edit->track->from_units(edit->startproject+edit->length);
5035                                                 end = mwindow->edl->align_to_frame(end, 0);
5036                                                 mwindow->edl->local_session->set_selectionend(end);
5037                                                 result = 1; // Select edit duration or select_region
5038                                         }
5039                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
5040                                                 mwindow->session->drag_edit = edit;
5041                                                 mwindow->session->current_operation = GROUP_TOGGLE;
5042                                                 result = 1;
5043                                         }
5044                                         if( result ) {
5045                                                 rerender = 1;
5046                                                 update_cursor = -1;
5047                                         }
5048                                 }
5049                                 else if( drag_start && track->is_armed() ) {
5050                                         mwindow->session->drag_edit = edit;
5051                                         mwindow->session->drag_origin_x = cursor_x;
5052                                         mwindow->session->drag_origin_y = cursor_y;
5053 // Where the drag started, so we know relative position inside the edit later
5054                                         mwindow->session->drag_position =
5055                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
5056                                         drag_start = 0; // if unselected "fast" drag
5057                                         if( !edit->silence() && !edit->is_selected ) {
5058                                                 mwindow->edl->tracks->clear_selected_edits();
5059                                                 if( ibeam_mode() ) {
5060                                                         double start = edit->track->from_units(edit->startproject);
5061                                                         mwindow->edl->local_session->set_selectionstart(start);
5062                                                         mwindow->edl->local_session->set_selectionend(start);
5063                                                         edit->set_selected(1);
5064                                                 }
5065                                                 else
5066                                                         edit->select_affected_edits(1, -1);
5067                                                 drag_start = 1;
5068                                         }
5069 // Construct list of all affected edits
5070                                         if( drag_start || ibeam_mode() ) {
5071                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
5072                                                 if( mwindow->session->drag_edits->size() > 0 ) {
5073                                                         mwindow->session->current_operation = DRAG_EDIT;
5074 // Need to create drag window
5075                                                         int cx, cy;  get_abs_cursor(cx, cy);
5076                                                         gui->drag_popup = new BC_DragWindow(gui,
5077                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
5078                                                         result = 1;
5079                                                 }
5080                                                 else {
5081                                                         rerender = start_selection(mwindow->session->drag_position);
5082                                                         mwindow->session->current_operation = SELECT_REGION;
5083                                                         update_cursor = 1;
5084                                                 }
5085                                         }
5086                                         else if( edit->is_selected && arrow_mode() ) {
5087                                                 if( mwindow->session->drag_group )
5088                                                         mwindow->session->drag_group->remove_user();
5089                                                 double start_position = 0;
5090                                                 mwindow->session->drag_group =
5091                                                         mwindow->edl->selected_edits_to_clip(0, &start_position,
5092                                                                 &mwindow->session->drag_group_first_track);
5093                                                 if( mwindow->session->drag_group ) {
5094                                                         mwindow->session->current_operation = DRAG_GROUP;
5095                                                         mwindow->session->drag_group_position = start_position;
5096                                                         mwindow->session->drag_group_edit = edit;
5097                                                         mwindow->session->drag_origin_y = edit_y;
5098                                                         result = 1;
5099                                                 }
5100                                         }
5101                                 }
5102                         }
5103                 }
5104         }
5105         return result;
5106 }
5107
5108 // returns -1=doesnt fit, 1=fits, 0=fits but overwrites
5109 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
5110 {
5111         int intersects = 0;
5112         Track *src = group->tracks->first;
5113         for( Track *track=first_track; track && src; track=track->next ) {
5114                 if( !track->is_armed() ) return -1;
5115                 if( src->data_type != track->data_type ) return -1;
5116                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
5117                         if( src_edit->silence() ) continue;
5118                         if( !intersects && edit_intersects(track, src_edit, pos) )
5119                                 intersects = 1;
5120                 }
5121                 src = src->next;
5122         }
5123         return src ? -1 : !intersects ? 1 : 0;
5124 }
5125
5126 int TrackCanvas::edit_intersects(Track *track, Edit *src_edit, double &pos)
5127 {
5128         if( pos < 0 ) { pos = 0;  return 1; }
5129         int pane_no = pane->number;
5130         int cur_pix = track->edl->get_position_cursorx(pos, pane_no);
5131         int64_t src_start = src_edit->startproject;
5132         int64_t src_end = src_start + src_edit->length;
5133         double new_start = src_edit->track->from_units(src_start) + pos;
5134         double new_end = src_edit->track->from_units(src_end) + pos;
5135         int64_t trk_start = track->to_units(new_start, 1);
5136         int64_t trk_end = track->to_units(new_end, 1);
5137         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
5138                 if( edit->is_selected || edit->silence() ) continue;
5139                 int64_t edit_start = edit->startproject;
5140                 if( edit_start >= trk_end ) continue;
5141                 int64_t edit_end = edit_start + edit->length;
5142                 if( trk_start >= edit_end ) continue;
5143
5144                 int64_t lt_dist = labs(trk_end - edit_start);
5145                 int64_t rt_dist = labs(edit_end - trk_start);
5146                 int64_t position;
5147                 if( lt_dist < rt_dist ) {
5148                         position = edit_start;
5149                         lt_dist = abs(trk_start - edit_start);
5150                         rt_dist = abs(trk_end - edit_start);
5151                         if( lt_dist > rt_dist )
5152                                 position -= src_end;
5153                 }
5154                 else {
5155                         position = edit_end;
5156                         lt_dist = abs(trk_start - edit_end);
5157                         rt_dist = abs(trk_end - edit_end);
5158                         if( lt_dist > rt_dist )
5159                                 position -= src_end;
5160                 }
5161                 double new_pos = edit->track->from_units(position);
5162                 int new_pix = track->edl->get_position_cursorx(new_pos, pane_no);
5163                 if( abs(new_pix-cur_pix) < HANDLE_W )
5164                         pos = new_pos;
5165                 return 1;
5166         }
5167         return 0;
5168 }
5169
5170 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5171 {
5172         return 0;
5173 }
5174
5175 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5176         int button_press, int &redraw, int &rerender)
5177 {
5178         Plugin *plugin = 0;
5179         int result = 0;
5180         int done = 0;
5181         int64_t x, y, w, h;
5182         Track *track = 0;
5183
5184         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5185                 if(!track->expand_view) continue;
5186
5187                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5188                         // first check if plugins are visible at all
5189                         if (!track->expand_view)
5190                                 continue;
5191                         PluginSet *plugin_set = track->plugin_set.values[i];
5192                         for(plugin = (Plugin*)plugin_set->first;
5193                                 plugin && !done;
5194                                 plugin = (Plugin*)plugin->next) {
5195                                 plugin_dimensions(plugin, x, y, w, h);
5196                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5197                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5198                                         if(cursor_x >= x && cursor_x < x + w &&
5199                                                 cursor_y >= y && cursor_y < y + h) {
5200                                                 done = 1;
5201                                                 break;
5202                                         }
5203                                 }
5204                         }
5205                 }
5206         }
5207
5208         if(plugin) {
5209 // Start plugin popup
5210                 if(button_press) {
5211                         if(get_buttonpress() == RIGHT_BUTTON ) {
5212                                 gui->plugin_menu->update(plugin);
5213                                 gui->plugin_menu->activate_menu();
5214                                 result = 1;
5215                         }
5216                         else if (get_double_click() && !drag_start) {
5217 // Select range of plugin on doubleclick over plugin
5218                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5219                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5220                                         plugin->track->from_units(plugin->length));
5221                                 if(mwindow->edl->session->cursor_on_frames) {
5222                                         mwindow->edl->local_session->set_selectionstart(
5223                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5224                                         mwindow->edl->local_session->set_selectionend(
5225                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5226                                 }
5227                                 rerender = 1;
5228                                 redraw = 1;
5229                                 result = 1;
5230                         }
5231                 }
5232                 else
5233 // Move plugin
5234                 if( drag_start && plugin->track->is_armed() && !plugin->silence() ) {
5235                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5236                                 if( plugin->track->data_type == TRACK_AUDIO )
5237                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5238                                 else if( plugin->track->data_type == TRACK_VIDEO )
5239                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5240
5241                                 mwindow->session->drag_plugin = plugin;
5242                                 mwindow->session->drag_origin_x = cursor_x;
5243                                 mwindow->session->drag_origin_y = cursor_y;
5244                                 // Where the drag started, so we know relative position inside the edit later
5245                                 mwindow->session->drag_position =
5246                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5247                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5248 // Create picon
5249                                 switch(plugin->plugin_type) {
5250                                 case PLUGIN_STANDALONE: {
5251                                         PluginServer *server =
5252                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5253                                         if( !server ) break;
5254                                         VFrame *frame = server->picon;
5255                                         if(!frame) {
5256                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5257                                                         frame = mwindow->theme->get_image("aeffect_icon");
5258                                                 }
5259                                                 else {
5260                                                         frame = mwindow->theme->get_image("veffect_icon");
5261                                                 }
5262                                         }
5263                                         int cx, cy;
5264                                         get_abs_cursor(cx, cy);
5265                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5266                                                 break; }
5267
5268                                 case PLUGIN_SHAREDPLUGIN:
5269                                 case PLUGIN_SHAREDMODULE: {
5270                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5271                                         int cx, cy;
5272                                         get_abs_cursor(cx, cy);
5273                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5274                                         break; }
5275                                 }
5276
5277                                 result = 1;
5278                         }
5279                 }
5280         }
5281
5282         return result;
5283 }
5284
5285 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5286         int button_press, int &new_cursor, int &update_cursor)
5287 {
5288         Transition *transition = 0;
5289         int result = 0;
5290         int64_t x, y, w, h;
5291
5292
5293         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5294                 if( track->is_hidden() ) continue;
5295                 if( !track->show_transitions() ) continue;
5296
5297                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5298                         if( edit->transition ) {
5299                                 edit_dimensions(edit, x, y, w, h);
5300                                 get_transition_coords(edit, x, y, w, h);
5301
5302                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5303                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5304                                         if( cursor_x >= x && cursor_x < x + w &&
5305                                                 cursor_y >= y && cursor_y < y + h ) {
5306                                                 transition = edit->transition;
5307                                                 result = 1;
5308                                                 break;
5309                                         }
5310                                 }
5311                         }
5312                 }
5313         }
5314
5315         update_cursor = 1;
5316         if(transition) {
5317                 if(!button_press) {
5318                         new_cursor = UPRIGHT_ARROW_CURSOR;
5319                 }
5320                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5321                         gui->transition_menu->update(transition);
5322                         gui->transition_menu->activate_menu();
5323                 }
5324         }
5325
5326         return result;
5327 }
5328
5329 int TrackCanvas::button_press_event()
5330 {
5331         int result = 0;
5332         int cursor_x, cursor_y;
5333         int new_cursor;
5334
5335         cursor_x = get_cursor_x();
5336         cursor_y = get_cursor_y();
5337         mwindow->session->trim_edits = 0;
5338
5339         if(is_event_win() && cursor_inside()) {
5340 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5341
5342                 result = 1;
5343                 if(!active) {
5344                         activate();
5345                 }
5346
5347                 if( get_buttonpress() == LEFT_BUTTON ) {
5348                         gui->stop_transport("TrackCanvas::button_press_event");
5349                 }
5350
5351                 int update_overlay = 0, update_cursor = 0, rerender = 0, update_message = 0;
5352
5353                 if(get_buttonpress() == WHEEL_UP) {
5354                         if(shift_down())
5355                                 mwindow->expand_sample();
5356                         else if(ctrl_down())
5357                                 mwindow->move_left(get_w()/ 10);
5358                         else
5359                                 mwindow->move_up(get_h() / 10);
5360                 }
5361                 else if(get_buttonpress() == WHEEL_DOWN) {
5362                         if(shift_down())
5363                                 mwindow->zoom_in_sample();
5364                         else if(ctrl_down())
5365                                 mwindow->move_right(get_w() / 10);
5366                         else
5367                                 mwindow->move_down(get_h() / 10);
5368                 }
5369                 else if(get_buttonpress() == 6) {
5370                         if(ctrl_down())
5371                                 mwindow->move_left(get_w());
5372                         else if(alt_down())
5373                                 mwindow->move_left(get_w() / 20);
5374                         else
5375                                 mwindow->move_left(get_w() / 5);
5376                 }
5377                 else if(get_buttonpress() == 7) {
5378                         if(ctrl_down())
5379                                 mwindow->move_right(get_w());
5380                         else if(alt_down())
5381                                 mwindow->move_right(get_w() / 20);
5382                         else
5383                                 mwindow->move_right(get_w() / 5);
5384                 }
5385                 else {
5386                         if( arrow_mode() ) do {
5387 // Test handles and resource boundaries and highlight a track
5388                                 if( do_transitions(cursor_x, cursor_y,
5389                                                 1, new_cursor, update_cursor) ) break;
5390
5391                                 if( do_keyframes(cursor_x, cursor_y,
5392                                         0, get_buttonpress(), new_cursor,
5393                                         update_cursor, rerender) ) break;
5394                                 update_message = 1;
5395 // Test edit boundaries
5396                                 if( do_edit_handles(cursor_x, cursor_y,
5397                                         1, rerender, update_overlay, new_cursor,
5398                                         update_cursor) ) break;
5399 // Test plugin boundaries
5400                                 if( do_plugin_handles(cursor_x, cursor_y,
5401                                         1, rerender, update_overlay, new_cursor,
5402                                         update_cursor) ) break;
5403
5404                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5405                                         update_overlay, rerender, new_cursor,
5406                                         update_cursor) ) break;
5407
5408                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5409                                         update_cursor, rerender) ) break;
5410
5411                                 if( test_resources(cursor_x, cursor_y) ) break;
5412
5413                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5414
5415                                 result = 0;
5416                         } while(0);
5417                         else if( ibeam_mode() ) do {
5418 // Test handles only and select a region
5419                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5420 //printf("TrackCanvas::button_press_event %d\n", position);
5421
5422                                 if( do_transitions(cursor_x, cursor_y,
5423                                                 1, new_cursor, update_cursor)) break;
5424                                 if(do_keyframes(cursor_x, cursor_y,
5425                                         0, get_buttonpress(), new_cursor,
5426                                         update_cursor, rerender)) {
5427                                         update_overlay = 1;
5428                                         break;
5429                                 }
5430                                 update_message = 1;
5431 // Test edit boundaries
5432                                 if( do_edit_handles(cursor_x, cursor_y,
5433                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5434 // Test plugin boundaries
5435                                 if( do_plugin_handles(cursor_x, cursor_y,
5436                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5437
5438                                 if( do_edits(cursor_x, cursor_y,
5439                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5440
5441                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5442
5443                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5444 // Highlight selection
5445                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5446                                 rerender = start_selection(position);
5447                                 mwindow->session->current_operation = SELECT_REGION;
5448                                 update_cursor = 1;
5449                         } while(0);
5450                 }
5451
5452                 if( rerender ) {
5453                         gui->unlock_window();
5454                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5455                         gui->lock_window("TrackCanvas::button_press_event 2");
5456 // Update faders
5457                         mwindow->update_plugin_guis();
5458                         gui->update_patchbay();
5459                 }
5460
5461                 if( update_message )
5462                         gui->default_message();
5463
5464                 if( update_overlay )
5465                         gui->draw_overlays(1);
5466
5467                 if( update_cursor < 0 ) {
5468 // double_click edit
5469                         gui->swindow->update_selection();
5470                         gui->draw_canvas(0, 0);
5471                 }
5472                 if( update_cursor ) {
5473                         gui->update_timebar(0);
5474                         gui->hide_cursor(0);
5475                         gui->show_cursor(1);
5476                         gui->zoombar->update();
5477                         gui->flash_canvas(1);
5478                 }
5479         }
5480
5481         return result;
5482 }
5483
5484 int TrackCanvas::start_selection(double position)
5485 {
5486         int rerender = 0;
5487         position = mwindow->edl->align_to_frame(position, 1);
5488
5489
5490 // Extend a border
5491         if(shift_down())
5492         {
5493                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5494                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5495
5496                 if(position < midpoint)
5497                 {
5498                         mwindow->edl->local_session->set_selectionstart(position);
5499                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5500 // Que the CWindow
5501                         rerender = 1;
5502                 }
5503                 else
5504                 {
5505                         mwindow->edl->local_session->set_selectionend(position);
5506                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5507 // Don't que the CWindow for the end
5508                 }
5509         }
5510         else
5511 // Start a new selection
5512         {
5513 //printf("TrackCanvas::start_selection %f\n", position);
5514                 mwindow->edl->local_session->set_selectionstart(position);
5515                 mwindow->edl->local_session->set_selectionend(position);
5516                 selection_midpoint = position;
5517 // Que the CWindow
5518                 rerender = 1;
5519         }
5520
5521         return rerender;
5522 }
5523
5524 void TrackCanvas::end_edithandle_selection()
5525 {
5526         mwindow->modify_edithandles();
5527 }
5528
5529 void TrackCanvas::end_pluginhandle_selection()
5530 {
5531         mwindow->modify_pluginhandles();
5532 }
5533
5534
5535 double TrackCanvas::time_visible()
5536 {
5537         return (double)get_w() *
5538                 mwindow->edl->local_session->zoom_sample /
5539                 mwindow->edl->session->sample_rate;
5540 }
5541
5542
5543 void TrackCanvas::show_message(Auto *current, int box_color, const char *fmt, ...)
5544 {
5545         char string[BCTEXTLEN];
5546         char *cp = string, *ep = cp + sizeof(string)-1;
5547         if( box_color >= 0 ) {
5548                 cp += snprintf(string, ep-cp, "%-8s ",
5549                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5550         }
5551         char string2[BCTEXTLEN];
5552         Units::totext(string2,
5553                 current->autos->track->from_units(current->position),
5554                 mwindow->edl->session->time_format,
5555                 mwindow->edl->session->sample_rate,
5556                 mwindow->edl->session->frame_rate,
5557                 mwindow->edl->session->frames_per_foot);
5558         cp += snprintf(cp, ep-cp, "%s", string2);
5559         va_list ap;
5560         va_start(ap, fmt);
5561         vsnprintf(cp, ep-cp, fmt, ap);
5562         va_end(ap);
5563         gui->show_message(string, -1, box_color);
5564 }
5565
5566 // Patchbay* TrackCanvas::get_patchbay()
5567 // {
5568 //      if(pane->patchbay) return pane->patchbay;
5569 //      if(gui->total_panes() == 2 &&
5570 //              gui->pane[TOP_LEFT_PANE] &&
5571 //              gui->pane[TOP_RIGHT_PANE])
5572 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5573 //      if(gui->total_panes() == 4)
5574 //      {
5575 //              if(pane->number == TOP_RIGHT_PANE)
5576 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5577 //              else
5578 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5579 //      }
5580 //
5581 //      return 0;
5582 // }
5583
5584