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                         if( edit->startsource + edit->length >= source_len )
1985                                 can_drag = 0;
1986                 }
1987                 else if( !edit->startsource )
1988                         can_drag = 0;
1989                 int64_t x, y, w, h;
1990                 edit_dimensions(edit, x, y, w, h);
1991                 if( y+h < 0 || y >= get_h() ) continue;
1992                 int edge_x = !drag_handle ? x : x + w;
1993                 int edge_y = y + h/2, xs10 = xS(10), ys10 = yS(10);
1994                 if( edge_x >= 0 && edge_x < get_w() ) {
1995                         if( !can_drag ) {
1996                                 draw_line(edge_x-xs10,edge_y-ys10, edge_x+xs10,edge_y+ys10);
1997                                 draw_line(edge_x-xs10,edge_y+ys10, edge_x+xs10,edge_y-ys10);
1998                         }
1999                         else if( !drag_handle ) {
2000                                 draw_line(edge_x+xs10,edge_y-ys10, edge_x,edge_y);
2001                                 draw_line(edge_x+xs10,edge_y+ys10, edge_x,edge_y);
2002                         }
2003                         else {
2004                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y-ys10);
2005                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y+ys10);
2006                         }
2007                 }
2008                 edge_x += delta;
2009                 if( edge_x >= 0 && edge_x < get_w() ) {
2010                         draw_line(edge_x, y, edge_x, y+h);
2011                 }
2012         }
2013         set_line_width(1);
2014 }
2015
2016
2017 void TrackCanvas::draw_transitions()
2018 {
2019         int64_t x, y, w, h;
2020
2021         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2022                 if( track->is_hidden() ) continue;
2023                 if( !track->show_transitions() ) continue;
2024
2025                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2026                         if(!edit->transition) continue;
2027                         edit_dimensions(edit, x, y, w, h);
2028                         int strip_x = x, edit_y = y;
2029                         get_transition_coords(edit, x, y, w, h);
2030                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2031                         if( track->show_assets() && track->show_titles() )
2032                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2033                         if( strip_y < edit_y ) strip_y = edit_y;
2034
2035                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2036                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2037                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2038                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2039                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2040                                                 track->data_type);
2041                                 if( !server ) continue;
2042                                 VFrame *picon = server->get_picon();
2043                                 if( !picon ) continue;
2044                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2045                                 int track_h = edit->track->vertical_span(mwindow->theme);
2046                                 if( picon_h > track_h ) picon_h = track_h;
2047                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2048                         }
2049                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2050                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2051                                 int x = strip_x, w = strip_w;
2052                                 if( x < 0 ) {  w -= -x;  x = 0; }
2053                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2054
2055                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2056                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2057                         }
2058                 }
2059         }
2060 }
2061
2062 void TrackCanvas::draw_loop_points()
2063 {
2064 //printf("TrackCanvas::draw_loop_points 1\n");
2065         if(mwindow->edl->local_session->loop_playback)
2066         {
2067 //printf("TrackCanvas::draw_loop_points 2\n");
2068                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2069                         mwindow->edl->session->sample_rate /
2070                         mwindow->edl->local_session->zoom_sample -
2071                         mwindow->edl->local_session->view_start[pane->number]);
2072 //printf("TrackCanvas::draw_loop_points 3\n");
2073
2074                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2075                 {
2076                         set_color(GREEN);
2077                         draw_line(x, 0, x, get_h());
2078                 }
2079 //printf("TrackCanvas::draw_loop_points 4\n");
2080
2081                 x = Units::round(mwindow->edl->local_session->loop_end *
2082                         mwindow->edl->session->sample_rate /
2083                         mwindow->edl->local_session->zoom_sample -
2084                         mwindow->edl->local_session->view_start[pane->number]);
2085 //printf("TrackCanvas::draw_loop_points 5\n");
2086
2087                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2088                 {
2089                         set_color(GREEN);
2090                         draw_line(x, 0, x, get_h());
2091                 }
2092 //printf("TrackCanvas::draw_loop_points 6\n");
2093         }
2094 //printf("TrackCanvas::draw_loop_points 7\n");
2095 }
2096
2097 void TrackCanvas::draw_brender_range()
2098 {
2099         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2100         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2101         if( mwindow->edl->session->brender_end > 0 )
2102         {
2103                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2104                         mwindow->edl->session->sample_rate /
2105                         mwindow->edl->local_session->zoom_sample -
2106                         mwindow->edl->local_session->view_start[pane->number]);
2107                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2108                 {
2109                         set_color(RED);
2110                         draw_line(x1, 0, x1, get_h());
2111                 }
2112                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2113                         mwindow->edl->session->sample_rate /
2114                         mwindow->edl->local_session->zoom_sample -
2115                         mwindow->edl->local_session->view_start[pane->number]);
2116
2117                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2118                 {
2119                         set_color(RED);
2120                         draw_line(x2, 0, x2, get_h());
2121                 }
2122         }
2123 }
2124
2125 // The operations which correspond to each automation type
2126 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2127 {
2128         DRAG_MUTE,
2129         DRAG_CAMERA_X,
2130         DRAG_CAMERA_Y,
2131         DRAG_CAMERA_Z,
2132         DRAG_PROJECTOR_X,
2133         DRAG_PROJECTOR_Y,
2134         DRAG_PROJECTOR_Z,
2135         DRAG_FADE,
2136         DRAG_PAN,
2137         DRAG_MODE,
2138         DRAG_MASK,
2139         DRAG_SPEED
2140 };
2141
2142 // The buttonpress operations, so nothing changes unless the mouse moves
2143 // a certain amount.  This allows the keyframe to be used to position the
2144 // insertion point without moving itself.
2145 static int pre_auto_operations[AUTOMATION_TOTAL] =
2146 {
2147         DRAG_MUTE,
2148         DRAG_CAMERA_X,
2149         DRAG_CAMERA_Y,
2150         DRAG_CAMERA_Z,
2151         DRAG_PROJECTOR_X,
2152         DRAG_PROJECTOR_Y,
2153         DRAG_PROJECTOR_Z,
2154         DRAG_FADE,
2155         DRAG_PAN_PRE,
2156         DRAG_MODE_PRE,
2157         DRAG_MASK_PRE,
2158         DRAG_SPEED
2159 };
2160
2161
2162 int TrackCanvas::do_keyframes(int cursor_x,
2163         int cursor_y,
2164         int draw,
2165         int buttonpress,
2166         int &new_cursor,
2167         int &update_cursor,
2168         int &rerender)
2169 {
2170 // Note: button 3 (right mouse button) is not eaten to allow
2171 // track context menu to appear
2172         int result = 0;
2173         EDLSession *session = mwindow->edl->session;
2174         int gang = session->gang_tracks != GANG_NONE || get_double_click() ? 1 : 0;
2175
2176         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2177         {
2178                 0, 0, 0, 0, 0, 0, 0, 0,
2179                 pankeyframe_pixmap,
2180                 modekeyframe_pixmap,
2181                 maskkeyframe_pixmap,
2182                 0,
2183         };
2184
2185
2186
2187         for(Track *track = mwindow->edl->tracks->first;
2188                 track && !result;
2189                 track = track->next) {
2190                 if( track->is_hidden() ) continue;
2191                 Auto *auto_keyframe = 0;
2192                 Automation *automation = track->automation;
2193
2194
2195 // Handle keyframes in reverse drawing order if a button press
2196                 int start = 0;
2197                 int end = AUTOMATION_TOTAL;
2198                 int step = 1;
2199                 if(buttonpress)
2200                 {
2201                         start = AUTOMATION_TOTAL - 1;
2202                         end = -1;
2203                         step = -1;
2204                 }
2205                 for(int i = start; i != end && !result; i += step)
2206                 {
2207 // Event not trapped and automation visible
2208                         Autos *autos = automation->autos[i];
2209                         if(!result && session->auto_conf->autos[i] && autos) {
2210                                 switch(i) {
2211                                 case AUTOMATION_MODE:
2212                                 case AUTOMATION_PAN:
2213                                 case AUTOMATION_MASK:
2214                                         result = do_autos(track, automation->autos[i],
2215                                                 cursor_x, cursor_y, draw,
2216                                                 buttonpress, auto_pixmaps[i],
2217                                                 auto_keyframe, rerender);
2218                                                 break;
2219
2220                                 default: {
2221                                         switch(autos->get_type()) {
2222                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2223                                                 Automation automation(0, track);
2224                                                 int grouptype = automation.autogrouptype(i, track);
2225                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2226                                                         mwindow->speed_before();
2227                                                 }
2228
2229                                                 if(draw) // Do dropshadow
2230                                                         result = do_float_autos(track, autos,
2231                                                                 cursor_x, cursor_y, draw,
2232                                                                 buttonpress, 1, 1, MDGREY,
2233                                                                 auto_keyframe, grouptype);
2234                                                 result = do_float_autos(track, autos,
2235                                                         cursor_x, cursor_y, draw, buttonpress,
2236                                                         0, 0, GWindowGUI::auto_colors[i],
2237                                                         auto_keyframe, grouptype);
2238
2239                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2240                                                         mwindow->speed_after(-1);
2241                                                 if( result && buttonpress ) {
2242                                                         int color = GWindowGUI::auto_colors[i];
2243                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2244                                                 }
2245                                                 break; }
2246
2247                                         case Autos::AUTOMATION_TYPE_INT: {
2248                                                 if(draw) // Do dropshadow
2249                                                         result = do_int_autos(track, autos,
2250                                                                 cursor_x, cursor_y, draw,
2251                                                                 buttonpress, 1, 1, MDGREY,
2252                                                                 auto_keyframe);
2253                                                 result = do_int_autos(track, autos,
2254                                                         cursor_x, cursor_y, draw, buttonpress,
2255                                                         0, 0, GWindowGUI::auto_colors[i],
2256                                                         auto_keyframe);
2257                                                 break; }
2258                                         }
2259                                         break; }
2260                                 }
2261
2262                                 if(result)
2263                                 {
2264                                         if(mwindow->session->current_operation == auto_operations[i])
2265                                                 rerender = 1;
2266
2267 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2268 // __LINE__,
2269 // mwindow->session->current_operation,
2270 // auto_operations[i]);
2271                                         if(buttonpress)
2272                                         {
2273                                                 if (buttonpress == 2 && auto_keyframe )
2274                                                 {
2275                                                         double position = track->from_units(auto_keyframe->position);
2276                                                         mwindow->edl->local_session->set_selectionstart(position);
2277                                                         mwindow->edl->local_session->set_selectionend(position);
2278                                                 }
2279                                                 if (buttonpress != 3)
2280                                                 {
2281                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2282                                                                 fill_ganged_autos(gang, 0, track,
2283                                                                         (FloatAuto*)mwindow->session->drag_auto);
2284                                                         mwindow->session->current_operation = pre_auto_operations[i];
2285                                                         update_drag_caption();
2286                                                         rerender = 1;
2287                                                 }
2288                                                 else if( auto_keyframe )
2289                                                 {
2290                                                         gui->keyframe_menu->update(automation,
2291                                                                 autos,
2292                                                                 auto_keyframe);
2293                                                         gui->keyframe_menu->activate_menu();
2294                                                         rerender = 1; // the position changes
2295                                                 }
2296                                                 else if( autos )
2297                                                 {
2298                                                         gui->keyframe_hide->update(autos);
2299                                                         gui->keyframe_hide->activate_menu();
2300                                                         rerender = 1; // the position changes
2301                                                 }
2302                                                 if(buttonpress == 1 && ctrl_down() &&
2303                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2304                                                         rerender = 1; // special case: curve mode changed
2305                                         }
2306                                 }
2307                         }
2308                 }
2309
2310                 if(!result && session->auto_conf->plugins) {
2311                         Plugin *plugin;
2312                         KeyFrame *keyframe;
2313                         result = do_plugin_autos(track, cursor_x, cursor_y,
2314                                 draw, buttonpress, plugin, keyframe);
2315                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2316                                 rerender = 1;
2317                         }
2318                         if(result && (buttonpress == 1)) {
2319                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2320                                 update_drag_caption();
2321                                 rerender = 1;
2322                         }
2323                         else if (result && (buttonpress == 3)) {
2324                                 gui->keyframe_menu->update(plugin, keyframe);
2325                                 gui->keyframe_menu->activate_menu();
2326                                 rerender = 1; // the position changes
2327                         }
2328                 }
2329         }
2330
2331 // Final pass to trap event
2332         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2333                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2334                         mwindow->session->current_operation == auto_operations[i]) {
2335                         result = 1;
2336                         break;
2337                 }
2338         }
2339
2340         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2341                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2342                 result = 1;
2343         }
2344
2345         update_cursor = 1;
2346         if(result) {
2347                 new_cursor = UPRIGHT_ARROW_CURSOR;
2348         }
2349
2350         return result;
2351 }
2352
2353 void TrackCanvas::draw_keyframe_reticle()
2354 {
2355         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2356         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2357
2358         int current_op = mwindow->session->current_operation, dragging = 0;
2359         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2360                 if( current_op == auto_operations[i] ) dragging = 1;
2361         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2362
2363         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2364                 mwindow->session->drag_auto->autos->autoidx : -1;
2365
2366         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2367             keyframe_hairline == HAIRLINE_DRAGGING ) {
2368                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2369                 return;
2370         }
2371
2372         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2373             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2374                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2375                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2376                         if( track->is_hidden() ) continue;
2377                         Automation *automation = track->automation;
2378                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2379                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2380                                 // automation visible
2381                                 Autos *autos = automation->autos[i];
2382                                 if( !autos ) continue;
2383                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2384                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2385                                      auto_keyframe = auto_keyframe->next ) {
2386                                         draw_hairline(auto_keyframe, BLUE, show);
2387                                 }
2388                         }
2389                 }
2390
2391                 if( dragging )
2392                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2393         }
2394 }
2395
2396 void TrackCanvas::draw_auto(Auto *current, int x, int y,
2397                 int center_pixel, int data_h)
2398 {
2399         int x1, y1, x2, y2;
2400
2401         x1 = x - HANDLE_W / 2;
2402         x2 = x + HANDLE_W / 2;
2403         y1 = center_pixel + y - HANDLE_W / 2;
2404         y2 = center_pixel + y + HANDLE_W / 2;
2405
2406         if( y1 < center_pixel - data_h/2 ) y1 = center_pixel - data_h/2;
2407         if( y2 > center_pixel + data_h/2 ) y2 = center_pixel + data_h/2;
2408
2409         draw_box(x1, y1, x2 - x1, y2 - y1);
2410 }
2411
2412
2413 // This draws lines for bezier in & out controls
2414 void TrackCanvas::draw_cropped_line(int x1,
2415         int y1,
2416         int x2,
2417         int y2,
2418         int min_y,
2419         int max_y)
2420 {
2421
2422
2423 // Don't care about x since it is clipped by the window.
2424 // Put y coords in ascending order
2425         if(y2 < y1) {
2426                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2427                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2428         }
2429
2430
2431
2432         double slope = (double)(x2 - x1) / (y2 - y1);
2433 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2434         if(y1 < min_y) {
2435                 x1 = (int)(x1 + (min_y - y1) * slope);
2436                 y1 = min_y;
2437         }
2438         else if(y1 >= max_y) {
2439                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2440                 y1 = max_y - 1;
2441         }
2442
2443         if(y2 >= max_y) {
2444                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2445                 y2 = max_y - 1;
2446         }
2447         else if(y2 < min_y) {
2448                 x2 = (int)(x2 + (min_y - y2) * slope);
2449                 y1 = min_y;
2450         }
2451
2452
2453 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2454         if( y1 >= min_y && y1 < max_y &&
2455             y2 >= min_y && y2 < max_y )
2456                 draw_line(x1, y1, x2, y2);
2457 }
2458
2459
2460 void TrackCanvas::draw_floatauto(FloatAuto *current, int x, int y,
2461                 int in_x, int in_y, int out_x, int out_y,
2462                 int center_pixel, int data_h, int color)
2463 {
2464         int x1 = x - HANDLE_W / 2; // Center
2465         int x2 = x + HANDLE_W / 2;
2466         int y1 = center_pixel + y - HANDLE_H / 2;
2467         int y2 = center_pixel + y + HANDLE_H / 2;
2468         int ymin = center_pixel - data_h / 2;
2469         int ymax = center_pixel + data_h / 2;
2470         CLAMP(y1, ymin, ymax);
2471         CLAMP(y2, ymin, ymax);
2472
2473         if( y2-1 > y1 ) {
2474                 if( current->curve_mode == FloatAuto::LINEAR ) {
2475                         draw_box(x1, y1, x2 - x1, y2 - y1);
2476                 }
2477                 else {
2478                         ArrayList<int> polygon_x;
2479                         ArrayList<int> polygon_y;
2480                         polygon_x.append((x1 + x2) / 2 + 1);
2481                         polygon_y.append(y1 + 1);
2482                         polygon_x.append(x2 + 1);
2483                         polygon_y.append((y1 + y2) / 2 + 1);
2484                         polygon_x.append((x1 + x2) / 2 + 1);
2485                         polygon_y.append(y2 + 1);
2486                         polygon_x.append(x1 + 1);
2487                         polygon_y.append((y1 + y2) / 2 + 1);
2488                         fill_polygon(&polygon_x, &polygon_y);
2489                 }
2490         }
2491
2492 // show bezier control points (only) if this
2493 // floatauto doesn't adjust it's tangents automatically
2494         if(current->curve_mode != FloatAuto::FREE &&
2495            current->curve_mode != FloatAuto::TFREE)
2496                 return;
2497
2498         if(in_x != x)
2499                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, data_h, color);
2500         if(out_x != x)
2501                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, data_h, color);
2502 }
2503
2504 inline int quantize(float f) { return (int)floor(f + 0.5); }
2505
2506 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2507                 int x, int y, int cp_x, int cp_y, int center_pixel,
2508                 int data_h, int color)
2509 // draw the tangent and a handle for given bézier ctrl point
2510 {
2511         bool handle_visible = (abs(cp_y) <= data_h/2);
2512
2513         float slope = (float)(cp_y - y)/(cp_x - x);
2514         CLAMP(cp_y, -data_h/2, data_h/2);
2515         if(slope != 0)
2516                 cp_x = x + quantize((cp_y - y) / slope);
2517
2518         y    += center_pixel;
2519         cp_y += center_pixel;
2520
2521         // drawing the tangent as a dashed line...
2522         int const dash = HANDLE_W;
2523         int const gap  = HANDLE_W / 2;
2524         float sx = 3 * (cp_x - x) / 4.;
2525         float ex = 0;
2526
2527         // q is the x displacement for a unit line of slope
2528         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2529
2530         float dist = 1/q * sx;
2531         if( dist > dash )
2532                 ex = sx - q * dash;
2533
2534         set_color(color);
2535         do {
2536                 float sy = slope * sx, ey = slope * ex;
2537                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2538                 sx = ex - q * gap;
2539                 ex = sx - q * dash;
2540         } while(q*ex > 0);
2541
2542         if(handle_visible)
2543         {
2544                 int r = HANDLE_W / 2;
2545                 int cp_x1 = cp_x - r;
2546                 int cp_y1 = cp_y - r;
2547                 set_color(BLACK);
2548                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2549                 set_color(color);
2550                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2551         }
2552 }
2553
2554
2555 int TrackCanvas::test_auto(Auto *current,
2556         int x, int y, int center_pixel, int data_h,
2557         int cursor_x, int cursor_y, int buttonpress)
2558 {
2559         int x1, y1, x2, y2;
2560         int result = 0;
2561
2562         x1 = x - HANDLE_W / 2;
2563         x2 = x + HANDLE_W / 2;
2564         y1 = center_pixel + y - HANDLE_H / 2;
2565         y2 = center_pixel + y + HANDLE_H / 2;
2566         int ymin = center_pixel - data_h/2;
2567         int ymax = center_pixel + data_h/2;
2568         CLAMP(y1, ymin, ymax);
2569         CLAMP(y2, ymin, ymax);
2570
2571         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2572         {
2573                 if(buttonpress && buttonpress != 3)
2574                 {
2575                         mwindow->session->drag_auto = current;
2576                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2577                         // Toggle Autos don't respond to vertical zoom, they always show up
2578                         // with "on" == 100% == line on top
2579                         mwindow->session->drag_start_position = current->position;
2580                         mwindow->session->drag_origin_x = cursor_x;
2581                         mwindow->session->drag_origin_y = cursor_y;
2582                 }
2583                 result = 1;
2584         }
2585
2586         if(buttonpress && buttonpress != 3 && result)
2587         {
2588 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2589                 mwindow->undo->update_undo_before();
2590         }
2591
2592         return result;
2593 }
2594
2595 // some Helpers for test_floatauto(..)
2596 // and for dragging the tangents/ctrl points
2597 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2598         float cursor_x, float cursor_y)
2599 {
2600 // Control point switched off?
2601         if( x0 == ctrl_x ) return 0.0;
2602         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2603         double x = cursor_x-x0, y = cursor_y-y0;
2604 // wrong side of ctrl handle
2605         if( x*x1 < 0 ) return 0.0;
2606 // outside handle radius
2607         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2608         double xx1 = x1*x1, yy1 = y1*y1;
2609         double xx = x*x, yy = y*y;
2610 // distance squared from cursor to cursor projected to line from ctrl to handle
2611 //   along a line perpendicular to line from ctrl to handle (closest approach)
2612 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2613         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2614         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2615 }
2616
2617
2618 inline
2619 float levered_position(float position, float ref_pos)
2620 {
2621         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2622                 return 0.0;
2623         return ref_pos / position;
2624 }
2625
2626
2627 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2628 // transforms automation value into current display coords,
2629 // dependant on current automation display range for the given kind of automation
2630 {
2631         if(!mwindow || !mwindow->edl) return 0;
2632         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2633         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2634         float automation_range = automation_max - automation_min;
2635         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2636                 return 0;
2637         return (auto_value - automation_min) / automation_range;
2638 }
2639
2640
2641
2642 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2643         int in_y, int out_x, int out_y, int center_pixel, int data_h,
2644         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2645 {
2646         int result = 0;
2647
2648         int x1 = x - HANDLE_W / 2;
2649         int x2 = x + HANDLE_W / 2;
2650         int y1 = center_pixel + y - HANDLE_W / 2;
2651         int y2 = center_pixel + y + HANDLE_W / 2;
2652         int ymin = center_pixel - data_h/2;
2653         int ymax = center_pixel + data_h/2;
2654         CLAMP(y1, ymin, ymax);
2655         CLAMP(y2, ymin, ymax);
2656
2657         int in_x1 = in_x - HANDLE_W / 2;
2658         int in_x2 = in_x + HANDLE_W / 2;
2659         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2660         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2661         CLAMP(in_y1, ymin, ymax);
2662         CLAMP(in_y2, ymin, ymax);
2663
2664         int out_x1 = out_x - HANDLE_W / 2;
2665         int out_x2 = out_x + HANDLE_W / 2;
2666         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2667         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2668         CLAMP(out_y1, ymin, ymax);
2669         CLAMP(out_y2, ymin, ymax);
2670
2671
2672 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2673 // buttonpress could be the start of a drag operation
2674 #define INIT_DRAG(POS,VAL) \
2675                 mwindow->session->drag_auto = current;      \
2676                 mwindow->session->drag_origin_x = cursor_x;  \
2677                 mwindow->session->drag_origin_y = cursor_y;   \
2678                 mwindow->session->drag_start_position = (POS); \
2679                 mwindow->session->drag_start_percentage = (VAL);
2680
2681 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2682
2683
2684 // without modifier we are manipulating the automation node
2685 // with ALT it's about dragging only the value of the node
2686 // with SHIFT the value snaps to the value of neighbouring nodes
2687 // CTRL indicates we are rather manipulating the tangent(s) of the node
2688
2689         if(!ctrl_down())
2690         {
2691                 if( WITHIN(x1,x2,y1,y2))
2692                 {       // cursor hits node
2693                         result = 1;
2694
2695                         if(buttonpress && (buttonpress != 3))
2696                         {
2697                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2698                                 mwindow->session->drag_handle = 0;
2699                 }       }
2700         }
2701         else // ctrl_down()
2702         {
2703                 if( WITHIN(x1,x2,y1,y2))
2704                 {
2705                         result = 1;
2706                         if(buttonpress && (buttonpress != 3))
2707                         {
2708                                 // could be ctrl-click or ctrl-drag
2709                                 // click would cycle through tangent modes
2710                                 ((FloatAuto*)current)->toggle_curve_mode();
2711
2712                                 // drag will start dragging the tangent, if applicable
2713                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2714                                 mwindow->session->drag_handle = 0;
2715                         }
2716                 }
2717
2718                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2719
2720 // Test in control
2721                 if( in_x != x && current->position > 0 &&
2722                         (FloatAuto::FREE == current->curve_mode ||
2723                          FloatAuto::TFREE == current->curve_mode))
2724 // act on in control handle only if
2725 // tangent is significant and is editable (not automatically choosen)
2726                 {
2727                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2728  // either cursor in ctrl-point handle or cursor on tangent line
2729                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2730                                 result = 1;
2731                                 if(buttonpress && (buttonpress != 3)) {
2732                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2733 //                                      lever = 1.0;
2734                                         mwindow->session->drag_handle = 1;
2735                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2736                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2737                                                   value_to_percentage(new_invalue, autogrouptype))
2738                                 }
2739                         }
2740                 }
2741
2742 // Test out control
2743                 if(out_x != x &&
2744                         (FloatAuto::FREE == current->curve_mode ||
2745                          FloatAuto::TFREE == current->curve_mode))
2746 // act on out control only if tangent is significant and is editable
2747                 {
2748                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2749                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2750                                 result = 1;
2751                                 if(buttonpress && (buttonpress != 3)) {
2752                                         if(lever == 0.0) lever=1.0;
2753 //                                      lever = 1.0;
2754                                         mwindow->session->drag_handle = 2;
2755                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2756                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2757                                                   value_to_percentage(new_outvalue, autogrouptype))
2758                                 }
2759                         }
2760                 }
2761         } // end ctrl_down()
2762
2763 #undef WITHIN
2764 #undef INIT_DRAG
2765
2766 // if(buttonpress)
2767 // 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",
2768 // mwindow->session->drag_handle,
2769 // ctrl_down(),
2770 // cursor_x,
2771 // cursor_y,
2772 // x1, x2, y1, y2);
2773         if(buttonpress && (buttonpress != 3) && result)
2774         {
2775                 mwindow->undo->update_undo_before();
2776         }
2777
2778         return result;
2779 }
2780
2781 static int is_linear(FloatAuto *prev, FloatAuto *next)
2782 {
2783         if( !prev || !next ) return 1;
2784         if( prev->curve_mode == FloatAuto::LINEAR ) return 1;
2785         int64_t ipos = prev->get_control_in_position();
2786         int64_t opos = prev->get_control_out_position();
2787         if( !ipos && !opos ) return 1;
2788         if( !ipos || !opos ) return 0;
2789         float ival = prev->get_control_in_value();
2790         float oval = prev->get_control_out_value();
2791         float cval = prev->get_value(), nval = next->get_value();
2792         if( !ival && !oval && EQUIV(cval, nval) ) return 1;
2793         float ig = ival / ipos, og = oval / opos;
2794         int64_t cpos = prev->position, npos = next->position;
2795         float g = (nval - cval) / (npos - cpos);
2796         if( EQUIV(ig, g) && EQUIV(og, g) ) return 1;
2797         return 0;
2798 }
2799
2800 // Get the float value & y for position x on the canvas
2801 #define X_TO_FLOATLINE(x) \
2802         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2803         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2804 /* Call by reference fails for some reason here */ \
2805         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2806         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2807         double position = unit_start + x * zoom_units; \
2808         double value = 0; \
2809         if(position2 > position1) \
2810         { \
2811                 value = value1 + \
2812                         (value2 - value1) * \
2813                         (position - position1) / \
2814                         (position2 - position1); \
2815         } \
2816         else \
2817         { \
2818                 value = value1; \
2819         } \
2820         AUTOMATIONCLAMPS(value, autogrouptype); \
2821         int y = center_pixel + \
2822                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2823
2824
2825 void TrackCanvas::draw_floatline(int center_pixel,
2826         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2827         double unit_start, double zoom_units, double yscale,
2828         int x1, int y1, int x2, int y2,
2829         int color, int autogrouptype)
2830 {
2831         int ytop = center_pixel - yscale / 2;
2832         int ybot = center_pixel + yscale / 2 - 1;
2833         y1 += center_pixel;  y2 += center_pixel;
2834         if( (y1 < ytop && y1 >= ybot) && (y2 < ytop || y2 >= ybot) ) return;
2835 // check for line draw
2836         if( is_linear(previous, next) ) {
2837                 draw_line(x1, y1, x2, y2);
2838                 return;
2839         }
2840
2841 // Solve bezier equation for either every pixel or a certain large number of
2842 // points.
2843
2844 // Not using slope intercept
2845         x1 = MAX(0, x1);
2846         draw_pixel(x1, y1);
2847         int prev_y = y1;
2848
2849 // Call by reference fails for some reason here
2850         FloatAuto *previous1 = previous, *next1 = next;
2851         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2852         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2853         float automation_range = automation_max - automation_min;
2854         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
2855                 automation_range = SPEED_MIN;
2856         for( int x=x1; x<x2; ++x ) {
2857 // Interpolate value between frames
2858                 X_TO_FLOATLINE(x)
2859
2860                 if( /* x > x1 && */ y >= ytop && y < ybot ) {
2861                         int x1 = x-1, y1 = prev_y, x2 = x, y2 = y;
2862                         if( abs(y2-y1) < 2 )
2863                                 draw_pixel(x2, y2);
2864                         else
2865                                 draw_bline(x1, y1, x2, y2);
2866                 }
2867                 prev_y = y;
2868         }
2869 }
2870
2871
2872 int TrackCanvas::test_floatline(int center_pixel,
2873                 FloatAutos *autos,
2874                 double unit_start,
2875                 double zoom_units,
2876                 double yscale,
2877                 int x1,
2878                 int x2,
2879                 int cursor_x,
2880                 int cursor_y,
2881                 int buttonpress,
2882                 int autogrouptype)
2883 {
2884         int result = 0;
2885
2886
2887         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2888         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2889         float automation_range = automation_max - automation_min;
2890         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
2891                 automation_range = SPEED_MIN;
2892         FloatAuto *previous1 = 0, *next1 = 0;
2893         X_TO_FLOATLINE(cursor_x);
2894
2895         if(cursor_x >= x1 &&
2896                 cursor_x < x2 &&
2897                 cursor_y >= y - HANDLE_W / 2 &&
2898                 cursor_y < y + HANDLE_W / 2 &&
2899                 !ctrl_down())
2900         {
2901                 result = 1;
2902
2903 // Menu
2904                 if(buttonpress == 3)
2905                 {
2906                 }
2907                 else
2908 // Create keyframe
2909                 if(buttonpress)
2910                 {
2911                         Auto *current;
2912                         mwindow->undo->update_undo_before();
2913                         double position = autos->track->from_units(position1);
2914                         position = mwindow->edl->align_to_frame(position, 0);
2915                         int64_t new_position = autos->track->to_units(position,0);
2916                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2917                         ((FloatAuto*)current)->set_value(value);
2918                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2919                         mwindow->session->drag_start_position = current->position;
2920                         mwindow->session->drag_origin_x = cursor_x;
2921                         mwindow->session->drag_origin_y = cursor_y;
2922                         mwindow->session->drag_handle = 0;
2923                 }
2924         }
2925
2926
2927         return result;
2928 }
2929
2930
2931 void TrackCanvas::fill_ganged_autos(int all, float change, Track *skip, FloatAuto *fauto)
2932 {
2933         if( !skip->is_ganged() ) return;
2934 // Handles the special case of modifying a fadeauto
2935 // when there are ganged faders on several tracks
2936         double position = skip->from_units(fauto->position);
2937         int autoidx = fauto->autos->autoidx;
2938
2939         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2940                 if( (all || current->data_type == skip->data_type) &&
2941                     current->armed_gang(skip) && current->is_armed() &&
2942                     current != skip ) {
2943                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2944                         float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2945                         float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2946                         int64_t current_position = current->to_units(position, 1);
2947                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
2948                         if( keyframe ) {
2949 // keyframe exists, just change it
2950                                 float value = keyframe->get_value();
2951                                 float new_value = value + change;
2952                                 CLAMP(new_value, auto_min, auto_max);
2953                                 keyframe->adjust_to_new_coordinates(current_position, new_value);
2954                         }
2955                         else if( all >= 0 ) {
2956 // create keyframe on neighbouring track at the point in time given by fauto
2957                                 FloatAuto *previous = 0, *next = 0;
2958                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2959                                 float new_value = value + change;
2960                                 CLAMP(new_value, auto_min, auto_max);
2961                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2962                                 keyframe->set_value(new_value);
2963                         }
2964                         if( !keyframe ) continue;
2965                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2966                 }
2967         }
2968 }
2969
2970 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
2971 {
2972         double position = skip->from_units(fauto->position);
2973 // Move the gangs
2974         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2975                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2976                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2977                 float new_value = keyframe->get_value() + change;
2978                 CLAMP(new_value,
2979                       mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2980                       mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2981                 keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2982         }
2983 }
2984
2985 void TrackCanvas::clear_ganged_autos()
2986 {
2987 // remove the gangs
2988         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2989                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2990                 keyframe->autos->remove_nonsequential(keyframe);
2991         }
2992         mwindow->session->drag_auto_gang->remove_all();
2993 }
2994
2995
2996 void TrackCanvas::draw_toggleline(int center_pixel,
2997         int x1,
2998         int y1,
2999         int x2,
3000         int y2)
3001 {
3002         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
3003
3004         if(y2 != y1)
3005         {
3006                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
3007         }
3008 }
3009
3010 int TrackCanvas::test_toggleline(Autos *autos,
3011         int center_pixel,
3012         int x1,
3013         int y1,
3014         int x2,
3015         int y2,
3016         int cursor_x,
3017         int cursor_y,
3018         int buttonpress)
3019 {
3020         int result = 0;
3021         if(cursor_x >= x1 && cursor_x < x2)
3022         {
3023                 int miny = center_pixel + y1 - HANDLE_W / 2;
3024                 int maxy = center_pixel + y1 + HANDLE_W / 2;
3025                 if(cursor_y >= miny && cursor_y < maxy)
3026                 {
3027                         result = 1;
3028
3029 // Menu
3030                         if(buttonpress == 3)
3031                         {
3032                         }
3033                         else
3034 // Insert keyframe
3035                         if(buttonpress)
3036                         {
3037                                 Auto *current;
3038                                 double position = (double)(cursor_x +
3039                                                 mwindow->edl->local_session->view_start[pane->number]) *
3040                                         mwindow->edl->local_session->zoom_sample /
3041                                         mwindow->edl->session->sample_rate;
3042                                 int64_t unit_position = autos->track->to_units(position, 0);
3043                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
3044
3045                                 mwindow->undo->update_undo_before();
3046
3047                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
3048                                 ((IntAuto*)current)->value = new_value;
3049                                 // Toggle Autos don't respond to vertical zoom, they always show up
3050                                 // with "on" == 100% == line on top
3051                                 mwindow->session->drag_start_percentage = (float)new_value;
3052                                 mwindow->session->drag_start_position = current->position;
3053                                 mwindow->session->drag_origin_x = cursor_x;
3054                                 mwindow->session->drag_origin_y = cursor_y;
3055                         }
3056                 }
3057         };
3058
3059         return result;
3060 }
3061
3062 void TrackCanvas::calculate_viewport(Track *track,
3063         double &view_start,   // Seconds
3064         double &unit_start,
3065         double &view_end,     // Seconds
3066         double &unit_end,
3067         double &yscale,
3068         int &center_pixel,
3069         double &zoom_sample,
3070         double &zoom_units)
3071 {
3072
3073         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
3074                 mwindow->edl->local_session->zoom_sample /
3075                 mwindow->edl->session->sample_rate;
3076         unit_start = track->to_doubleunits(view_start);
3077         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
3078                 get_w()) *
3079                 mwindow->edl->local_session->zoom_sample /
3080                 mwindow->edl->session->sample_rate;
3081         unit_end = track->to_doubleunits(view_end);
3082
3083         int y = track->y_pixel
3084                         - mwindow->edl->local_session->track_start[pane->number];
3085         int has_titles = track->show_titles();
3086         int has_assets = track->show_assets();
3087         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
3088         double title_h = mwindow->theme->title_h;
3089         double data_h = track->data_h;
3090         double ys = has_assets ? data_h : has_titles ? title_bg_h : 0;
3091         double dy = has_titles ?
3092                 ( has_assets ? title_bg_h + data_h/2 : title_bg_h/2) :
3093                 ( has_assets ? data_h/2 : 0) ;
3094         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
3095         yscale = ys;
3096         center_pixel = y + dy;
3097
3098         zoom_sample = mwindow->edl->local_session->zoom_sample;
3099         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
3100 }
3101
3102 float TrackCanvas::percentage_to_value(float percentage,
3103         int is_toggle,
3104         Auto *reference,
3105         int autogrouptype)
3106 {
3107         float result;
3108         if(is_toggle)
3109         {
3110                 if(percentage > 0.5)
3111                         result = 1;
3112                 else
3113                         result = 0;
3114         }
3115         else
3116         {
3117                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3118                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3119                 float automation_range = automation_max - automation_min;
3120
3121                 result = percentage * automation_range + automation_min;
3122                 if(reference)
3123                 {
3124                         FloatAuto *ptr = (FloatAuto*)reference;
3125                         result -= ptr->get_value();
3126                 }
3127 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
3128         }
3129         return result;
3130 }
3131
3132
3133 void TrackCanvas::calculate_auto_position(double *x, double *y,
3134         double *in_x, double *in_y, double *out_x, double *out_y,
3135         Auto *current, double unit_start, double zoom_units, double yscale,
3136         int autogrouptype)
3137 {
3138         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3139         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3140         float automation_range = automation_max - automation_min;
3141         if( autogrouptype == AUTOGROUPTYPE_SPEED && automation_range < SPEED_MIN )
3142                 automation_range = SPEED_MIN;
3143         FloatAuto *ptr = (FloatAuto*)current;
3144         *x = (double)(ptr->position - unit_start) / zoom_units;
3145         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
3146
3147         if(in_x) {
3148 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
3149                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
3150         }
3151
3152         if(in_y) {
3153                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
3154                                 automation_min) / automation_range - 0.5) * -yscale;
3155         }
3156
3157         if(out_x) {
3158 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
3159                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
3160         }
3161
3162         if(out_y) {
3163                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
3164                                  automation_min) / automation_range - 0.5) * -yscale;
3165         }
3166 }
3167
3168
3169 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
3170                 int draw, int buttonpress, int x_offset, int y_offset, int color,
3171                 Auto* &auto_instance, int autogrouptype)
3172 {
3173         int result = 0;
3174         int center_pixel, draw_auto;
3175         double view_start, unit_start;
3176         double view_end, unit_end, yscale;
3177         double zoom_sample, zoom_units;
3178         double in_x2, in_y2, out_x2, out_y2;
3179         double slope;
3180         //int skip = 0;
3181
3182         auto_instance = 0;
3183
3184         if(draw) set_color(color);
3185
3186         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3187                         yscale, center_pixel, zoom_sample, zoom_units);
3188
3189 // Get first auto before start
3190         Auto *current = 0, *previous = 0;
3191
3192         for( current = autos->last;
3193                 current && current->position >= unit_start;
3194                 current = PREVIOUS ) ;
3195
3196         Auto *first_auto = current ? current :
3197                  autos->first ? autos->first : autos->default_auto;
3198
3199         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
3200         if( first_auto ) {
3201                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3202                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
3203         }
3204         if( current )
3205                 current = NEXT;
3206         else {
3207                 current = autos->first;
3208                 ax = 0;
3209         }
3210
3211         do {
3212                 //skip = 0;
3213                 draw_auto = 1;
3214
3215                 if(current) {
3216                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
3217                                 current, unit_start, zoom_units, yscale, autogrouptype);
3218                 }
3219                 else {
3220                         ax2 = get_w();
3221                         ay2 = ay;
3222                         //skip = 1;
3223                 }
3224
3225                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3226
3227                 if(ax2 > get_w()) {
3228                         draw_auto = 0;
3229                         ax2 = get_w();
3230                         ay2 = ay + slope * (get_w() - ax);
3231                 }
3232
3233                 if(ax < 0) {
3234                         ay = ay + slope * (0 - ax);
3235                         ax = 0;
3236                 }
3237
3238 // Draw or test handle
3239                 if( current && !result && current != autos->default_auto ) {
3240                         if( !draw && track->is_armed() ) {
3241                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
3242                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
3243                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3244                                         buttonpress, autogrouptype);
3245                                 if( result )
3246                                         auto_instance = current;
3247                         }
3248                         if( draw && draw_auto ) {
3249                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
3250                                         (int)in_x2 + x_offset, (int)in_y2,
3251                                         (int)out_x2 + x_offset, (int)out_y2,
3252                                         (int)center_pixel + y_offset, (int)yscale, color);
3253                         }
3254                 }
3255
3256 // Draw or test joining line
3257                 if( !draw && !result && track->is_armed() /* && buttonpress != 3 */ ) {
3258                         result = test_floatline(center_pixel,
3259                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3260 // Exclude auto coverage from the end of the line.  The auto overlaps
3261                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3262                                 buttonpress, autogrouptype);
3263                 }
3264                 if( draw )
3265                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3266                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3267                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3268                                 color, autogrouptype);
3269
3270                 if( current ) {
3271                         previous = current;
3272                         current = NEXT;
3273                 }
3274
3275                 ax = ax2;  ay = ay2;
3276         } while( current && current->position <= unit_end && !result );
3277
3278         if( ax < get_w() && !result ) {
3279                 ax2 = get_w();  ay2 = ay;
3280                 if(!draw && track->is_armed() /* && buttonpress != 3 */ ) {
3281                         result = test_floatline(center_pixel,
3282                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3283                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3284                                 buttonpress, autogrouptype);
3285                 }
3286                 if( draw )
3287                         draw_floatline(center_pixel,
3288                                 (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
3294         return result;
3295 }
3296
3297
3298 int TrackCanvas::do_int_autos(Track *track,
3299                 Autos *autos,
3300                 int cursor_x,
3301                 int cursor_y,
3302                 int draw,
3303                 int buttonpress,
3304                 int x_offset,
3305                 int y_offset,
3306                 int color,
3307                 Auto *&auto_instance)
3308 {
3309         int result = 0;
3310         double view_start;
3311         double unit_start;
3312         double view_end;
3313         double unit_end;
3314         double yscale;
3315         int center_pixel;
3316         double zoom_sample;
3317         double zoom_units;
3318         double ax, ay, ax2, ay2;
3319
3320         auto_instance = 0;
3321
3322         if(draw) set_color(color);
3323
3324         calculate_viewport(track,
3325                 view_start,
3326                 unit_start,
3327                 view_end,
3328                 unit_end,
3329                 yscale,
3330                 center_pixel,
3331                 zoom_sample,
3332                 zoom_units);
3333
3334
3335         double high = -yscale * 0.8 / 2;
3336         double low = yscale * 0.8 / 2;
3337
3338 // Get first auto before start
3339         Auto *current;
3340         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3341                 ;
3342
3343         if(current)
3344         {
3345                 ax = 0;
3346                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3347                 current = NEXT;
3348         }
3349         else
3350         {
3351                 current = autos->first ? autos->first : autos->default_auto;
3352                 if(current)
3353                 {
3354                         ax = 0;
3355                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3356                 }
3357                 else
3358                 {
3359                         ax = 0;
3360                         ay = yscale;
3361                 }
3362         }
3363
3364         do
3365         {
3366                 if(current)
3367                 {
3368                         ax2 = (double)(current->position - unit_start) / zoom_units;
3369                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3370                 }
3371                 else
3372                 {
3373                         ax2 = get_w();
3374                         ay2 = ay;
3375                 }
3376
3377                 if(ax2 > get_w()) ax2 = get_w();
3378
3379                 if(current && !result)
3380                 {
3381                         if(current != autos->default_auto)
3382                         {
3383                                 if(!draw)
3384                                 {
3385                                         if(track->is_armed())
3386                                         {
3387                                                 result = test_auto(current,
3388                                                         (int)ax2,
3389                                                         (int)ay2,
3390                                                         (int)center_pixel,
3391                                                         (int)yscale,
3392                                                         cursor_x,
3393                                                         cursor_y,
3394                                                         buttonpress);
3395                                                 if (result)
3396                                                         auto_instance = current;
3397                                         }
3398                                 }
3399                                 else
3400                                         draw_auto(current,
3401                                                 (int)ax2 + x_offset,
3402                                                 (int)ay2 + y_offset,
3403                                                 (int)center_pixel,
3404                                                 (int)yscale);
3405                         }
3406
3407                         current = NEXT;
3408                 }
3409
3410                 if(!draw)
3411                 {
3412                         if(!result)
3413                         {
3414                                 if(track->is_armed() /* && buttonpress != 3 */)
3415                                 {
3416                                         result = test_toggleline(autos,
3417                                                 center_pixel,
3418                                                 (int)ax,
3419                                                 (int)ay,
3420                                                 (int)ax2,
3421                                                 (int)ay2,
3422                                                 cursor_x,
3423                                                 cursor_y,
3424                                                 buttonpress);
3425                                 }
3426                         }
3427                 }
3428                 else
3429                         draw_toggleline(center_pixel + y_offset,
3430                                 (int)ax,
3431                                 (int)ay,
3432                                 (int)ax2,
3433                                 (int)ay2);
3434
3435                 ax = ax2;
3436                 ay = ay2;
3437         }while(current && current->position <= unit_end && !result);
3438
3439         if(ax < get_w() && !result)
3440         {
3441                 ax2 = get_w();
3442                 ay2 = ay;
3443                 if(!draw)
3444                 {
3445                         if(track->is_armed() /* && buttonpress != 3 */)
3446                         {
3447                                 result = test_toggleline(autos,
3448                                         center_pixel,
3449                                         (int)ax,
3450                                         (int)ay,
3451                                         (int)ax2,
3452                                         (int)ay2,
3453                                         cursor_x,
3454                                         cursor_y,
3455                                         buttonpress);
3456                         }
3457                 }
3458                 else
3459                         draw_toggleline(center_pixel + y_offset,
3460                                 (int)ax,
3461                                 (int)ay,
3462                                 (int)ax2,
3463                                 (int)ay2);
3464         }
3465         return result;
3466 }
3467
3468 int TrackCanvas::do_autos(Track *track,
3469                 Autos *autos,
3470                 int cursor_x,
3471                 int cursor_y,
3472                 int draw,
3473                 int buttonpress,
3474                 BC_Pixmap *pixmap,
3475                 Auto * &auto_instance,
3476                 int &rerender)
3477 {
3478         int result = 0;
3479
3480         double view_start;
3481         double unit_start;
3482         double view_end;
3483         double unit_end;
3484         double yscale;
3485         int center_pixel;
3486         double zoom_sample;
3487         double zoom_units;
3488
3489         calculate_viewport(track,
3490                 view_start,
3491                 unit_start,
3492                 view_end,
3493                 unit_end,
3494                 yscale,
3495                 center_pixel,
3496                 zoom_sample,
3497                 zoom_units);
3498
3499         Auto *current;
3500         auto_instance = 0;
3501
3502         for(current = autos->first; current && !result; current = NEXT)
3503         {
3504                 if(current->position >= unit_start && current->position < unit_end)
3505                 {
3506                         int64_t x, y;
3507                         x = (int64_t)((double)(current->position - unit_start) /
3508                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3509                         y = center_pixel - pixmap->get_h() / 2;
3510
3511                         if(!draw)
3512                         {
3513                                 if(cursor_x >= x && cursor_y >= y &&
3514                                         cursor_x < x + pixmap->get_w() &&
3515                                         cursor_y < y + pixmap->get_h())
3516                                 {
3517                                         result = 1;
3518                                         auto_instance = current;
3519
3520                                         if(buttonpress && (buttonpress != 3))
3521                                         {
3522                                                 mwindow->session->drag_auto = current;
3523                                                 mwindow->session->drag_start_position = current->position;
3524                                                 mwindow->session->drag_origin_x = cursor_x;
3525                                                 mwindow->session->drag_origin_y = cursor_y;
3526
3527                                                 double position = autos->track->from_units(current->position);
3528                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3529                                                         mwindow->edl->local_session->get_selectionend(1)) /
3530                                                         2;
3531
3532                                                 if(!shift_down())
3533                                                 {
3534                                                         mwindow->edl->local_session->set_selectionstart(position);
3535                                                         mwindow->edl->local_session->set_selectionend(position);
3536                                                 }
3537                                                 else
3538                                                 if(position < center)
3539                                                 {
3540                                                         mwindow->edl->local_session->set_selectionstart(position);
3541                                                 }
3542                                                 else
3543                                                         mwindow->edl->local_session->set_selectionend(position);
3544
3545                                                 rerender = 1;
3546                                         }
3547                                 }
3548                         }
3549                         else
3550                                 draw_pixmap(pixmap, x, y);
3551                 }
3552         }
3553
3554
3555         return result;
3556 }
3557
3558 // so this means it is always >0 when keyframe is found
3559 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3560                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3561                 KeyFrame* &keyframe_instance)
3562 {
3563         int result = 0;
3564
3565         double view_start;
3566         double unit_start;
3567         double view_end;
3568         double unit_end;
3569         double yscale;
3570         int center_pixel;
3571         double zoom_sample;
3572         double zoom_units;
3573
3574         if(!track->expand_view) return 0;
3575
3576         calculate_viewport(track,
3577                 view_start,
3578                 unit_start,
3579                 view_end,
3580                 unit_end,
3581                 yscale,
3582                 center_pixel,
3583                 zoom_sample,
3584                 zoom_units);
3585
3586
3587
3588         for(int i = 0; i < track->plugin_set.total && !result; i++)
3589         {
3590                 PluginSet *plugin_set = track->plugin_set.values[i];
3591                 int center_pixel = track->y_pixel -
3592                         mwindow->edl->local_session->track_start[pane->number];
3593                 if( track->show_titles() )
3594                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3595                 if( track->show_assets() )
3596                         center_pixel += track->data_h;
3597                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3598
3599                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3600                         plugin && !result;
3601                         plugin = (Plugin*)plugin->next)
3602                 {
3603                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3604                                 keyframe && !result;
3605                                 keyframe = (KeyFrame*)keyframe->next)
3606                         {
3607 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3608                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3609                                 {
3610                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3611                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3612
3613 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3614                                         if(!draw)
3615                                         {
3616                                                 if(cursor_x >= x && cursor_y >= y &&
3617                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3618                                                         cursor_y < y + keyframe_pixmap->get_h())
3619                                                 {
3620                                                         result = 1;
3621                                                         keyframe_plugin = plugin;
3622                                                         keyframe_instance = keyframe;
3623
3624                                                         if(buttonpress)
3625                                                         {
3626                                                                 mwindow->session->drag_auto = keyframe;
3627                                                                 mwindow->session->drag_start_position = keyframe->position;
3628                                                                 mwindow->session->drag_origin_x = cursor_x;
3629                                                                 mwindow->session->drag_origin_y = cursor_y;
3630
3631                                                                 double position = track->from_units(keyframe->position);
3632                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3633                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3634                                                                         2;
3635
3636                                                                 if(!shift_down())
3637                                                                 {
3638                                                                         mwindow->edl->local_session->set_selectionstart(position);
3639                                                                         mwindow->edl->local_session->set_selectionend(position);
3640                                                                 }
3641                                                                 else
3642                                                                 if(position < center)
3643                                                                 {
3644                                                                         mwindow->edl->local_session->set_selectionstart(position);
3645                                                                 }
3646                                                                 else
3647                                                                         mwindow->edl->local_session->set_selectionend(position);
3648                                                         }
3649                                                 }
3650                                         }
3651                                         else
3652                                                 draw_pixmap(keyframe_pixmap,
3653                                                         x,
3654                                                         y);
3655                                 }
3656                         }
3657                 }
3658         }
3659
3660
3661
3662 //      if(buttonpress && buttonpress != 3 && result)
3663 //      {
3664 //              mwindow->undo->update_undo_before();
3665 //      }
3666
3667         return result;
3668 }
3669
3670 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
3671 {
3672         Track *track = auto_keyframe->autos->track;
3673         int autogrouptype = auto_keyframe->autos->autogrouptype;
3674
3675         int center_pixel;
3676         double view_start, unit_start;
3677         double view_end, unit_end, yscale;
3678         double zoom_sample, zoom_units;
3679
3680         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3681                         yscale, center_pixel, zoom_sample, zoom_units);
3682         if( auto_keyframe->position < unit_start ||
3683             auto_keyframe->position >= unit_end )
3684                 return 0;
3685
3686         double ax = 0, ay = 0;
3687         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3688                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3689
3690         set_color(color);
3691         draw_line(ax, 0, ax, get_h());
3692
3693         char text[BCSTRLEN];
3694         if( show ) {
3695                 if( auto_keyframe->is_floatauto() ) {
3696                         FloatAuto *float_auto = (FloatAuto *)auto_keyframe;
3697                         sprintf(text, "%0.2f", float_auto->get_value());
3698                 }
3699                 else if( auto_keyframe->is_intauto() ) {
3700                         IntAuto *int_auto = (IntAuto *)auto_keyframe;
3701                         sprintf(text, "%d", int_auto->value);
3702                 }
3703                 else
3704                         show = 0;
3705         }
3706         if( show ) {
3707                 int font = MEDIUMFONT;
3708                 int tw = get_text_width(font, text)  + xS(TOOLTIP_MARGIN) * 2;
3709                 int th = get_text_height(font, text) + yS(TOOLTIP_MARGIN) * 2;
3710                 set_color(get_resources()->tooltip_bg_color);
3711                 ax += HANDLE_W/2;
3712                 ay += center_pixel + HANDLE_W/2;
3713                 draw_box(ax, ay, tw, th);
3714                 set_color(BLACK);
3715                 draw_rectangle(ax, ay, tw, th);
3716                 set_font(font);
3717                 ax += xS(TOOLTIP_MARGIN);
3718                 ay += yS(TOOLTIP_MARGIN) + get_text_ascent(font);
3719                 draw_text(ax, ay, text);
3720         }
3721         return 0;
3722 }
3723
3724 void TrackCanvas::draw_overlays()
3725 {
3726         int new_cursor, update_cursor, rerender;
3727
3728 // Move background pixmap to foreground pixmap
3729         draw_pixmap(background_pixmap, 0, 0, get_w(), get_h(), 0, 0);
3730
3731 // In/Out points
3732         draw_inout_points();
3733
3734 // Transitions
3735         draw_transitions();
3736
3737 // Plugins
3738         draw_plugins();
3739         draw_hard_edges();
3740
3741 // Loop points
3742         draw_loop_points();
3743         draw_brender_range();
3744
3745 // Highlighted areas
3746         draw_highlighting();
3747
3748 // Automation
3749         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3750
3751 // Selection cursor
3752         if(pane->cursor) pane->cursor->restore(1);
3753
3754 // Handle dragging
3755         draw_drag_handle();
3756
3757 // Playback cursor
3758         draw_playback_cursor();
3759
3760         draw_keyframe_reticle();
3761
3762         show_window(0);
3763 }
3764
3765 int TrackCanvas::activate()
3766 {
3767         if(!active)
3768         {
3769 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3770 //BC_Signals::dump_stack();
3771                 get_top_level()->deactivate();
3772                 active = 1;
3773                 set_active_subwindow(this);
3774                 pane->cursor->activate();
3775                 gui->focused_pane = pane->number;
3776         }
3777         return 0;
3778 }
3779
3780 int TrackCanvas::deactivate()
3781 {
3782         if(active)
3783         {
3784                 active = 0;
3785                 pane->cursor->deactivate();
3786         }
3787         return 0;
3788 }
3789
3790
3791 void TrackCanvas::update_drag_handle()
3792 {
3793         double new_position;
3794         int cursor_x = get_cursor_x();
3795
3796         new_position =
3797                 (double)(cursor_x +
3798                 mwindow->edl->local_session->view_start[pane->number]) *
3799                 mwindow->edl->local_session->zoom_sample /
3800                 mwindow->edl->session->sample_rate;
3801
3802         new_position =
3803                 mwindow->edl->align_to_frame(new_position, 0);
3804
3805         if( ctrl_down() && alt_down() ) {
3806 #define snapper(v) do { \
3807         double pos = (v); \
3808         if( pos < 0 ) break; \
3809         double dist = fabs(new_position - pos); \
3810         if( dist >= snap_min ) break; \
3811         snap_position = pos;  snap_min = dist; \
3812 } while(0)
3813                 double snap_position = new_position;
3814                 double snap_min = DBL_MAX;
3815                 if( mwindow->edl->local_session->inpoint_valid() )
3816                         snapper(mwindow->edl->local_session->get_inpoint());
3817                 if( mwindow->edl->local_session->outpoint_valid() )
3818                         snapper(mwindow->edl->local_session->get_outpoint());
3819                 snapper(mwindow->edl->prev_edit(new_position));
3820                 snapper(mwindow->edl->next_edit(new_position));
3821                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3822                 if( prev_label ) snapper(prev_label->position);
3823                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3824                 if( next_label ) snapper(next_label->position);
3825                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3826                         mwindow->edl->local_session->zoom_sample -
3827                         mwindow->edl->local_session->view_start[pane->number];
3828                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3829                         snapped = 1;
3830                         new_position = snap_position;
3831                 }
3832 #undef snapper
3833         }
3834
3835         if(new_position != mwindow->session->drag_position)
3836         {
3837                 mwindow->session->drag_position = new_position;
3838                 gui->mainclock->update(new_position);
3839                 timebar_position = new_position;
3840                 gui->update_timebar(0);
3841
3842                 EDL *edl = new EDL;
3843                 edl->create_objects();
3844                 edl->copy_all(mwindow->edl);
3845                 MainSession *session = mwindow->session;
3846                 int handle_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3847                 edl->modify_edithandles(session->drag_start,
3848                         session->drag_position, session->drag_handle, handle_mode,
3849                         edl->session->labels_follow_edits,
3850                         edl->session->plugins_follow_edits,
3851                         edl->session->autos_follow_edits,
3852                         !session->drag_edit ? 0 : session->drag_edit->group_id);
3853
3854                 double position = -1;
3855                 int show_edge = !session->drag_handle ? 1 : 2;
3856                 switch( handle_mode ) {
3857                 case MOVE_RIPPLE:
3858                 case MOVE_EDGE:
3859                         position = session->drag_handle ?
3860                                 session->drag_position : session->drag_start;
3861                         show_edge = 3 - show_edge;
3862                         break;
3863                 case MOVE_ROLL:
3864                 case MOVE_SLIDE:
3865                         position = session->drag_position;
3866                         break;
3867                 case MOVE_SLIP:
3868                         position = session->drag_start;
3869                         show_edge = 3 - show_edge;
3870                         break;
3871                 }
3872
3873                 if( position < 0 ) position = 0;
3874                 Track *track = session->drag_handle_track();
3875                 int64_t pos = track->to_units(position, 0);
3876                 render_handle_frame(edl, pos, shift_down() ? 0 : show_edge);
3877                 edl->remove_user();
3878         }
3879 }
3880
3881 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3882 {
3883         int result = 0;
3884         int64_t left = pos-1;
3885         if( left < 0 ) left = 0;
3886         switch( mode ) {
3887         case 0: {
3888                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3889                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3890                 TransportCommand command;
3891                 command.command = CURRENT_FRAME;
3892                 command.get_edl()->copy_all((EDL *)edl);
3893                 command.change_type = CHANGE_ALL;
3894                 command.realtime = 0;
3895                 Preferences *preferences = mwindow->preferences;
3896                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3897                 CICache *video_cache = new CICache(preferences);
3898                 render_engine->set_vcache(video_cache);
3899                 render_engine->arm_command(&command);
3900                 VRender *vrender = render_engine->vrender;
3901                 result = vrender &&
3902                         !vrender->process_buffer(&vlt, left, 0) &&
3903                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3904                 delete render_engine;
3905                 video_cache->remove_user();
3906                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3907                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3908                 float ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2;
3909                 canvas->get_transfers(edl, ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2);
3910                 float cw = canvas->w/2, ch = canvas->h/2;
3911                 float cdx = (cx2 - cx1)/2, cdy = (cy2 - cy1)/2;
3912                 int cx = cx1/2, cy = cy1/2 + ch/2;
3913                 int ow = ox2 - ox2, oh = oy2 - oy1;
3914                 BC_WindowBase *window = canvas->get_canvas();
3915                 window->set_color(BLACK);
3916                 window->clear_box(0,0, window->get_w(),window->get_h());
3917                 window->draw_vframe(&vlt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);  cx += cw;
3918                 window->draw_vframe(&vrt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);
3919                 window->flash(1);
3920                 mwindow->cwindow->gui->unlock_window();
3921                 break; }
3922         case 1:
3923         case 2: {
3924                 Track *track = mwindow->session->drag_handle_track();
3925                 double position = track->from_units(mode == 1 ? left : pos);
3926                 if( position < 0 ) position = 0;
3927                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3928                 if( playback_engine->is_playing_back )
3929                         playback_engine->stop_playback(1);
3930                 edl->local_session->set_selectionstart(position);
3931                 edl->local_session->set_selectionend(position);
3932                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3933                 break; }
3934         }
3935         return result;
3936 }
3937
3938 int TrackCanvas::update_drag_edit()
3939 {
3940         int result = 0;
3941
3942
3943
3944         return result;
3945 }
3946
3947 int TrackCanvas::get_drag_values(float *percentage,
3948         int64_t *position,
3949         int do_clamp,
3950         int cursor_x,
3951         int cursor_y,
3952         Auto *current)
3953 {
3954         //int x = cursor_x - mwindow->session->drag_origin_x;
3955         //int y = cursor_y - mwindow->session->drag_origin_y;
3956         *percentage = 0;
3957         *position = 0;
3958
3959         if(!current->autos->track->is_armed()) return 1;
3960         double view_start;
3961         double unit_start;
3962         double view_end;
3963         double unit_end;
3964         double yscale;
3965         int center_pixel;
3966         double zoom_sample;
3967         double zoom_units;
3968
3969         calculate_viewport(current->autos->track,
3970                 view_start,
3971                 unit_start,
3972                 view_end,
3973                 unit_end,
3974                 yscale,
3975                 center_pixel,
3976                 zoom_sample,
3977                 zoom_units);
3978
3979         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3980                 yscale +
3981                 mwindow->session->drag_start_percentage;
3982         if(do_clamp) CLAMP(*percentage, 0, 1);
3983
3984         *position = Units::to_int64(zoom_units *
3985                 (cursor_x - mwindow->session->drag_origin_x) +
3986                 mwindow->session->drag_start_position + 0.5);
3987
3988         if((do_clamp) && *position < 0) *position = 0;
3989         return 0;
3990 }
3991
3992
3993 #define UPDATE_DRAG_HEAD(do_clamp) \
3994         int result = 0, center_pixel; \
3995         if(!current->autos->track->is_armed()) return 0; \
3996         double view_start, unit_start, view_end, unit_end; \
3997         double yscale, zoom_sample, zoom_units; \
3998  \
3999         calculate_viewport(current->autos->track,  \
4000                 view_start, unit_start, view_end, unit_end, \
4001                 yscale, center_pixel, zoom_sample, zoom_units); \
4002  \
4003         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
4004                 yscale +  mwindow->session->drag_start_percentage; \
4005         if(do_clamp) CLAMP(percentage, 0, 1); \
4006  \
4007         int64_t position = Units::to_int64(zoom_units * \
4008                 (cursor_x - mwindow->session->drag_origin_x) + \
4009                 mwindow->session->drag_start_position); \
4010         if((do_clamp) && position < 0) position = 0;
4011
4012
4013 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
4014 {
4015         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
4016
4017         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
4018         int x = cursor_x - mwindow->session->drag_origin_x;
4019         int y = cursor_y - mwindow->session->drag_origin_y;
4020         float value, old_value;
4021
4022         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
4023 // not really editing the node, rather start editing the curve
4024 // tangent is editable and drag movement is significant
4025                 if( (FloatAuto::FREE == current->curve_mode ||
4026                      FloatAuto::TFREE==current->curve_mode) &&
4027                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
4028                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
4029         }
4030
4031         switch(mwindow->session->drag_handle) {
4032         case 0: // Center
4033 // Snap to nearby values
4034                 old_value = current->get_value();
4035                 if(shift_down()) {
4036                         double value1, value2, distance1=-1, distance2=-1;
4037
4038                         if(current->previous) {
4039                                 int autogrouptype = current->previous->autos->autogrouptype;
4040                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4041                                 value1 = ((FloatAuto*)current->previous)->get_value();
4042                                 distance1 = fabs(value - value1);
4043                                 current->set_value(value1);
4044                         }
4045
4046                         if(current->next) {
4047                                 int autogrouptype = current->next->autos->autogrouptype;
4048                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4049                                 value2 = ((FloatAuto*)current->next)->get_value();
4050                                 distance2 = fabs(value - value2);
4051                                 if(!current->previous || distance2 < distance1) {
4052                                         current->set_value(value2);
4053                                 }
4054                         }
4055
4056                         if(!current->previous && !current->next) {
4057                                 current->set_value( ((FloatAutos*)current->autos)->default_);
4058                         }
4059                         value = current->get_value();
4060                 }
4061                 else {
4062                         int autogrouptype = current->autos->autogrouptype;
4063                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
4064                 }
4065
4066                 if(alt_down() && !shift_down())
4067 // ALT constrains movement: fixed position, only changing the value
4068                         position = mwindow->session->drag_start_position;
4069
4070                 if(value != old_value || position != current->position) {
4071                         result = 1;
4072                         float change = value - old_value;
4073                         current->adjust_to_new_coordinates(position, value);
4074                         update_ganged_autos(change, current->autos->track, current);
4075                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4076                         show_message(current, color, ", %.2f", current->get_value());
4077                 }
4078                 break;
4079
4080 // In control
4081         case 1: {
4082                 int autogrouptype = current->autos->autogrouptype;
4083                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4084                 if(value != current->get_control_in_value())
4085                 {
4086                         result = 1;
4087                         // note: (position,value) need not be at the location of the ctrl point,
4088                         // but could be somewhere in between on the curve (or even outward or
4089                         // on the opposit side). We set the new control point such as
4090                         // to point the curve through (position,value)
4091                         current->set_control_in_value(
4092                                 value * levered_position(position - current->position,
4093                                                          current->get_control_in_position()));
4094                         update_ganged_autos(0, current->autos->track, current);
4095                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4096                         show_message(current, color, ", %.2f", current->get_control_in_value());
4097                 }
4098                 break; }
4099
4100 // Out control
4101         case 2: {
4102                 int autogrouptype = current->autos->autogrouptype;
4103                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4104                 if(value != current->get_control_out_value()) {
4105                         result = 1;
4106                         current->set_control_out_value(
4107                                 value * levered_position(position - current->position,
4108                                                          current->get_control_out_position()));
4109                         update_ganged_autos(0, current->autos->track, current);
4110                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4111                         show_message(current, color, ", %.2f", current->get_control_out_value());
4112                 }
4113                 break; }
4114         }
4115
4116         return result;
4117 }
4118
4119 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4120 {
4121         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4122
4123         UPDATE_DRAG_HEAD(1);
4124         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4125
4126         if(value != current->value || position != current->position)
4127         {
4128                 result = 1;
4129                 current->value = value;
4130                 current->position = position;
4131                 show_message(current, -1, ", %d", current->value);
4132         }
4133
4134         return result;
4135 }
4136
4137 // Autos which can't change value through dragging.
4138
4139 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4140 {
4141         Auto *current = (Auto*)mwindow->session->drag_auto;
4142
4143         UPDATE_DRAG_HEAD(1)
4144         if(position != current->position)
4145         {
4146                 result = 1;
4147                 current->position = position;
4148                 show_message(current, -1, "");
4149
4150                 double position_f = current->autos->track->from_units(current->position);
4151                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4152                         mwindow->edl->local_session->get_selectionend(1)) /
4153                         2;
4154                 if(!shift_down())
4155                 {
4156                         mwindow->edl->local_session->set_selectionstart(position_f);
4157                         mwindow->edl->local_session->set_selectionend(position_f);
4158                 }
4159                 else
4160                 if(position_f < center_f)
4161                 {
4162                         mwindow->edl->local_session->set_selectionstart(position_f);
4163                 }
4164                 else
4165                         mwindow->edl->local_session->set_selectionend(position_f);
4166         }
4167
4168
4169         return result;
4170 }
4171
4172 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4173 {
4174         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4175
4176         UPDATE_DRAG_HEAD(1)
4177         if(position != current->position)
4178         {
4179 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4180                 Track *track = current->autos->track;
4181                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4182                 PluginSet *pluginset;
4183                 Plugin *plugin = 0;
4184 // figure out the correct pluginset & correct plugin
4185                 int found = 0;
4186                 for(int i = 0; i < track->plugin_set.total; i++)
4187                 {
4188                         pluginset = track->plugin_set.values[i];
4189                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4190                         {
4191                                 KeyFrames *keyframes = plugin->keyframes;
4192                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4193                                         currentkeyframe;
4194                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4195                                 {
4196                                         if (currentkeyframe == current)
4197                                         {
4198                                                 found = 1;
4199                                                 break;
4200                                         }
4201
4202                                 }
4203                                 if (found) break;
4204                         }
4205                         if (found) break;
4206                 }
4207
4208                 mwindow->session->plugin_highlighted = plugin;
4209                 mwindow->session->track_highlighted = track;
4210                 result = 1;
4211                 current->position = position;
4212                 show_message(current, -1, "");
4213
4214                 double position_f = current->autos->track->from_units(current->position);
4215                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4216                         mwindow->edl->local_session->get_selectionend(1)) /
4217                         2;
4218                 if(!shift_down())
4219                 {
4220                         mwindow->edl->local_session->set_selectionstart(position_f);
4221                         mwindow->edl->local_session->set_selectionend(position_f);
4222                 }
4223                 else
4224                 if(position_f < center_f)
4225                 {
4226                         mwindow->edl->local_session->set_selectionstart(position_f);
4227                 }
4228                 else
4229                         mwindow->edl->local_session->set_selectionend(position_f);
4230         }
4231
4232
4233         return result;
4234 }
4235
4236 void TrackCanvas::update_drag_caption()
4237 {
4238         switch(mwindow->session->current_operation)
4239         {
4240                 case DRAG_FADE:
4241
4242                         break;
4243         }
4244 }
4245
4246
4247
4248 int TrackCanvas::cursor_update(int in_motion)
4249 {
4250         int result = 0;
4251         int cursor_x = 0;
4252         int cursor_y = 0;
4253         int update_clock = 0;
4254         int update_zoom = 0;
4255         int update_scroll = 0;
4256         int update_overlay = 0;
4257         int update_cursor = 0;
4258         int rerender = 0;
4259         double position = 0.;
4260 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4261
4262 // Default cursor
4263         int new_cursor =
4264                 arrow_mode() ? ARROW_CURSOR :
4265                 ibeam_mode() ? IBEAM_CURSOR : 0;
4266
4267         switch(mwindow->session->current_operation)
4268         {
4269                 case DRAG_EDITHANDLE1:
4270 // Outside threshold.  Upgrade status
4271                         if(active)
4272                         {
4273                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4274                                 {
4275                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
4276                                         update_overlay = 1;
4277                                 }
4278                         }
4279                         break;
4280
4281                 case DRAG_EDITHANDLE2:
4282                         if(active)
4283                         {
4284                                 update_drag_handle();
4285                                 update_overlay = 1;
4286                         }
4287                         break;
4288
4289                 case DRAG_PLUGINHANDLE1:
4290                         if(active)
4291                         {
4292                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4293                                 {
4294                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4295                                         update_overlay = 1;
4296                                 }
4297                         }
4298                         break;
4299
4300                 case DRAG_PLUGINHANDLE2:
4301                         if(active)
4302                         {
4303                                 update_drag_handle();
4304                                 update_overlay = 1;
4305                         }
4306                         break;
4307
4308 // Rubber band curves
4309                 case DRAG_FADE:
4310                 case DRAG_SPEED:
4311                 case DRAG_CZOOM:
4312                 case DRAG_PZOOM:
4313                 case DRAG_CAMERA_X:
4314                 case DRAG_CAMERA_Y:
4315                 case DRAG_CAMERA_Z:
4316                 case DRAG_PROJECTOR_X:
4317                 case DRAG_PROJECTOR_Y:
4318                 case DRAG_PROJECTOR_Z:
4319                         if(active) rerender = update_overlay =
4320                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4321                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4322                                 mwindow->speed_after(!in_motion ? 1 : 0);
4323                         break;
4324
4325                 case DRAG_PLAY:
4326                         if(active) rerender = update_overlay =
4327                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4328                         break;
4329
4330                 case DRAG_MUTE:
4331                         if(active) rerender = update_overlay =
4332                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4333                         break;
4334
4335 // Keyframe icons are sticky
4336                 case DRAG_PAN_PRE:
4337                 case DRAG_MASK_PRE:
4338                 case DRAG_MODE_PRE:
4339                 case DRAG_PLUGINKEY_PRE:
4340                         if(active) {
4341                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4342                                         mwindow->session->current_operation++;
4343                                         update_overlay = 1;
4344
4345                                         mwindow->undo->update_undo_before();
4346                                 }
4347                         }
4348                         break;
4349
4350                 case DRAG_PAN:
4351                 case DRAG_MASK:
4352                 case DRAG_MODE:
4353                         if(active) rerender = update_overlay =
4354                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4355                         break;
4356
4357                 case DRAG_PLUGINKEY:
4358                         if(active) rerender = update_overlay =
4359                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4360                         break;
4361
4362                 case SELECT_REGION:
4363                         if(active) {
4364                                 cursor_x = get_cursor_x();
4365                                 cursor_y = get_cursor_y();
4366                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4367                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4368
4369                                 position = mwindow->edl->align_to_frame(position, 0);
4370                                 position = MAX(position, 0);
4371
4372                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4373                                 double end = mwindow->edl->local_session->get_selectionend(1);
4374                                 if(position < selection_midpoint) {
4375                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4376                                         mwindow->edl->local_session->set_selectionstart(position);
4377                                 }
4378                                 else {
4379                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4380                                         mwindow->edl->local_session->set_selectionend(position);
4381                                 }
4382         // Que the CWindow
4383                                 gui->unlock_window();
4384                                 int dir =
4385                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4386                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4387                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4388                                 gui->lock_window("TrackCanvas::cursor_update 1");
4389         // Update the faders
4390                                 mwindow->update_plugin_guis();
4391                                 gui->update_patchbay();
4392
4393                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4394
4395                                 gui->hide_cursor(0);
4396                                 gui->draw_cursor(1);
4397                                 gui->update_timebar(0);
4398                                 gui->flash_canvas(1);
4399                                 result = 1;
4400                                 update_clock = 1;
4401                                 update_zoom = 1;
4402                                 update_scroll = 1;
4403                         }
4404                         break;
4405
4406                 case DROP_TARGETING:
4407                         new_cursor = GRABBED_CURSOR;
4408                         result = 1;
4409                         break;
4410
4411                 default:
4412                         if(is_event_win() && cursor_inside()) {
4413 // Update clocks
4414                                 cursor_x = get_cursor_x();
4415                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4416                                 position = mwindow->edl->align_to_frame(position, 0);
4417                                 update_clock = 1;
4418 // set all timebars
4419                                 for(int i = 0; i < TOTAL_PANES; i++)
4420                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4421
4422 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4423                                 gui->update_timebar(0);
4424 // Update cursor
4425                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4426                                                 0, new_cursor, update_cursor)) break;
4427                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4428                                         0, 0, new_cursor, update_cursor, rerender)) break;
4429                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4430                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4431 // Plugin boundaries
4432                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4433                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4434                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4435                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4436                         }
4437                         break;
4438         }
4439
4440 //printf("TrackCanvas::cursor_update 1\n");
4441         if(update_cursor && new_cursor != get_cursor())
4442         {
4443                 set_cursor(new_cursor, 0, 1);
4444         }
4445
4446 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4447         if(rerender && render_timer->get_difference() > 0.25 ) {
4448                 render_timer->update();
4449                 mwindow->restart_brender();
4450                 mwindow->sync_parameters(CHANGE_PARAMS);
4451                 mwindow->update_plugin_guis();
4452                 gui->unlock_window();
4453                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4454                 gui->lock_window("TrackCanvas::cursor_update 2");
4455         }
4456         if(rerender) {
4457 // Update faders
4458                 gui->update_patchbay();
4459         }
4460
4461
4462         if(update_clock) {
4463                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4464                         gui->mainclock->update(position);
4465         }
4466
4467         if(update_zoom) {
4468                 gui->zoombar->update();
4469         }
4470
4471         if(update_scroll) {
4472                 if(!drag_scroll &&
4473                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4474                         start_dragscroll();
4475                 else
4476                 if(drag_scroll &&
4477                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4478                         stop_dragscroll();
4479         }
4480
4481         if(update_overlay) {
4482                 gui->draw_overlays(1);
4483         }
4484
4485 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4486         return result;
4487 }
4488
4489 int TrackCanvas::cursor_motion_event()
4490 {
4491         return cursor_update(1);
4492 }
4493
4494 void TrackCanvas::start_dragscroll()
4495 {
4496         if(!drag_scroll) {
4497                 drag_scroll = 1;
4498                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4499 //printf("TrackCanvas::start_dragscroll 1\n");
4500         }
4501 }
4502
4503 void TrackCanvas::stop_dragscroll()
4504 {
4505         if(drag_scroll) {
4506                 drag_scroll = 0;
4507                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4508 //printf("TrackCanvas::stop_dragscroll 1\n");
4509         }
4510 }
4511
4512 int TrackCanvas::repeat_event(int64_t duration)
4513 {
4514         if(!drag_scroll) return 0;
4515         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4516
4517         int sample_movement = 0;
4518         int track_movement = 0;
4519         int64_t x_distance = 0;
4520         int64_t y_distance = 0;
4521         double position = 0;
4522         int result = 0;
4523
4524         switch(mwindow->session->current_operation) {
4525                 case SELECT_REGION:
4526 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4527                 if(get_cursor_x() > get_w()) {
4528                                 x_distance = get_cursor_x() - get_w();
4529                                 sample_movement = 1;
4530                 }
4531                 else if(get_cursor_x() < 0) {
4532                         x_distance = get_cursor_x();
4533                         sample_movement = 1;
4534                 }
4535
4536                 if(get_cursor_y() > get_h()) {
4537                         y_distance = get_cursor_y() - get_h();
4538                         track_movement = 1;
4539                 }
4540                 else if(get_cursor_y() < 0) {
4541                         y_distance = get_cursor_y();
4542                         track_movement = 1;
4543                 }
4544                 result = 1;
4545                 break;
4546         }
4547
4548         if(sample_movement) {
4549                 position = (double)(get_cursor_x() +
4550                         mwindow->edl->local_session->view_start[pane->number] +
4551                         x_distance) *
4552                         mwindow->edl->local_session->zoom_sample /
4553                         mwindow->edl->session->sample_rate;
4554                 position = mwindow->edl->align_to_frame(position, 0);
4555                 position = MAX(position, 0);
4556
4557 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4558                 switch(mwindow->session->current_operation) {
4559                 case SELECT_REGION:
4560                         if(position < selection_midpoint) {
4561                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4562                                 mwindow->edl->local_session->set_selectionstart(position);
4563 // Que the CWindow
4564                                 gui->unlock_window();
4565                                 mwindow->cwindow->update(1, 0, 0);
4566                                 gui->lock_window("TrackCanvas::repeat_event");
4567 // Update the faders
4568                                 mwindow->update_plugin_guis();
4569                                 gui->update_patchbay();
4570                         }
4571                         else {
4572                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4573                                 mwindow->edl->local_session->set_selectionend(position);
4574 // Don't que the CWindow
4575                         }
4576                         break;
4577                 }
4578
4579                 mwindow->samplemovement(
4580                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4581                         pane->number);
4582         }
4583
4584         if(track_movement) {
4585                 mwindow->trackmovement(y_distance, pane->number);
4586         }
4587
4588         return result;
4589 }
4590
4591 int TrackCanvas::button_release_event()
4592 {
4593         int redraw = -1, update_overlay = 0;
4594         int result = 0, load_flags = 0;
4595
4596 // printf("TrackCanvas::button_release_event %d\n",
4597 // mwindow->session->current_operation);
4598         if(active) {
4599                 switch(mwindow->session->current_operation) {
4600                 case DRAG_EDITHANDLE2:
4601                         mwindow->session->current_operation = NO_OPERATION;
4602                         drag_scroll = 0;
4603                         result = 1;
4604
4605                         end_edithandle_selection();
4606                         break;
4607
4608                 case DRAG_EDITHANDLE1:
4609                         mwindow->session->current_operation = NO_OPERATION;
4610                         drag_scroll = 0;
4611                         result = 1;
4612                         break;
4613
4614                 case DRAG_PLUGINHANDLE2:
4615                         mwindow->session->current_operation = NO_OPERATION;
4616                         drag_scroll = 0;
4617                         result = 1;
4618
4619                         end_pluginhandle_selection();
4620                         break;
4621
4622                 case DRAG_PLUGINHANDLE1:
4623                         mwindow->session->current_operation = NO_OPERATION;
4624                         drag_scroll = 0;
4625                         result = 1;
4626                         break;
4627
4628                 case DRAG_SPEED:
4629                         redraw = FORCE_REDRAW;
4630                         load_flags |= LOAD_EDITS;
4631                 case DRAG_FADE:
4632 // delete the drag_auto_gang first and remove out of order keys
4633                         clear_ganged_autos();
4634                 case DRAG_CZOOM:
4635                 case DRAG_PZOOM:
4636                 case DRAG_PLAY:
4637                 case DRAG_MUTE:
4638                 case DRAG_MASK:
4639                 case DRAG_MODE:
4640                 case DRAG_PAN:
4641                 case DRAG_CAMERA_X:
4642                 case DRAG_CAMERA_Y:
4643                 case DRAG_CAMERA_Z:
4644                 case DRAG_PROJECTOR_X:
4645                 case DRAG_PROJECTOR_Y:
4646                 case DRAG_PROJECTOR_Z:
4647                 case DRAG_PLUGINKEY:
4648                         load_flags |= LOAD_AUTOMATION;
4649                         mwindow->session->current_operation = NO_OPERATION;
4650                         mwindow->session->drag_handle = 0;
4651 // Remove any out-of-order keyframe
4652                         if(mwindow->session->drag_auto) {
4653                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4654                                                 mwindow->session->drag_auto);
4655 //                              mwindow->session->drag_auto->autos->optimize();
4656                                 update_overlay = 1;
4657                         }
4658
4659                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4660                         result = 1;
4661                         break;
4662
4663                 case DRAG_EDIT:
4664                 case DRAG_GROUP:
4665                 case DRAG_AEFFECT_COPY:
4666                 case DRAG_VEFFECT_COPY:
4667 // Trap in drag stop
4668                         break;
4669
4670                 case DROP_TARGETING: {
4671                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4672                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4673                         drag_cursor_motion(cursor_x, cursor_y,
4674                                 &track, &edit, &pluginset, &plugin);
4675                         double position =
4676                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4677                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4678                         mwindow->session->current_operation = NO_OPERATION;
4679                         result = 1;
4680                         break; }
4681
4682                 case GROUP_TOGGLE: {
4683                         Edit *edit = mwindow->session->drag_edit;
4684                         if( edit ) {
4685                                 if( shift_down() && edit->is_selected ) {
4686                                         if( edit->group_id > 0 ) {
4687                                                 mwindow->edl->tracks->clear_selected_edits();
4688                                                 mwindow->edl->tracks->del_group(edit->group_id);
4689                                         }
4690                                         else {
4691                                                 int id = mwindow->session->group_number++;
4692                                                 mwindow->edl->tracks->new_group(id);
4693                                         }
4694                                         redraw = 0;
4695                                 }
4696                                 else {
4697                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4698                                                 mwindow->edl->tracks->clear_selected_edits();
4699                                         edit->set_selected(-1);
4700                                 }
4701                         }
4702                         mwindow->session->current_operation = NO_OPERATION;
4703                         update_overlay = 1;
4704                         result = 1;
4705                         drag_scroll = 0;
4706                         break; }
4707
4708                 default:
4709                         if( mwindow->session->current_operation ) {
4710 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4711 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4712 //                              }
4713
4714                                 mwindow->session->current_operation = NO_OPERATION;
4715                                 drag_scroll = 0;
4716                                 //result = 0;
4717                                 break;
4718                         }
4719                         break;
4720                 }
4721         }
4722
4723         if( mwindow->edl->local_session->zoombar_showautocolor >= 0 )
4724                 mwindow->gui->zoombar->update_autozoom(-1);
4725
4726         if (result)
4727                 cursor_update(0);
4728
4729         if(update_overlay) {
4730                 gui->draw_overlays(1);
4731         }
4732         if(redraw >= 0) {
4733                 gui->draw_canvas(redraw, 0);
4734                 gui->flash_canvas(1);
4735         }
4736         return result;
4737 }
4738
4739 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4740         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4741 {
4742         Edit *edit_result = 0;
4743         int handle_result = -1;
4744         int result = 0;
4745
4746         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4747                 if( track->is_hidden() ) continue;
4748                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4749                         int64_t edit_x, edit_y, edit_w, edit_h;
4750                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4751
4752                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4753                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4754                                 if( cursor_x < edit_x + HANDLE_W ) {
4755                                         edit_result = edit;
4756                                         handle_result = 0;
4757                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4758                                             track->show_assets() ) {
4759                                                 new_cursor = DOWNLEFT_RESIZE;
4760                                                 if( button_press == LEFT_BUTTON )
4761                                                         result = -1;
4762                                         }
4763                                         else
4764                                                 result = 1;
4765                                 }
4766                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4767                                         edit_result = edit;
4768                                         handle_result = 1;
4769                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4770                                             track->show_assets() ) {
4771                                                 new_cursor = DOWNRIGHT_RESIZE;
4772                                                 if( button_press == LEFT_BUTTON )
4773                                                         result = -1;
4774                                         }
4775                                         else
4776                                                 result = 1;
4777                                 }
4778                         }
4779                 }
4780         }
4781
4782         if( result > 0 ) {
4783                 int group_id = edit_result->group_id;
4784                 if( group_id > 0 ) {
4785                         Track *track = edit_result->track;
4786                         Edit *left = 0, *right = 0;
4787                         double start = DBL_MAX, end = DBL_MIN;
4788                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4789                                 if( edit->group_id != group_id ) continue;
4790                                 double edit_start = edit->track->from_units(edit->startproject);
4791                                 if( edit_start < start ) { start = edit_start;  left = edit; }
4792                                 double edit_end = edit->track->from_units(edit->startproject+edit->length);
4793                                 if( edit_end > end ) { end = edit_end;  right = edit; }
4794                         }
4795                         Edit *edit = !handle_result ? left : right;
4796                         if( edit != edit_result )
4797                                 result = 0;
4798                 }
4799         }
4800
4801         update_cursor = 1;
4802         if( result > 0 ) {
4803                 double position = 0;
4804                 if( handle_result == 0 ) {
4805                         position = edit_result->track->from_units(edit_result->startproject);
4806                         new_cursor = LEFT_CURSOR;
4807                 }
4808                 else if( handle_result == 1 ) {
4809                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4810                         new_cursor = RIGHT_CURSOR;
4811                 }
4812
4813 // Reposition cursor
4814                 if( button_press ) {
4815                         mwindow->session->drag_edit = edit_result;
4816                         mwindow->session->drag_handle = handle_result;
4817                         mwindow->session->drag_button = get_buttonpress() - 1;
4818                         mwindow->session->drag_position = position;
4819                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4820                         mwindow->session->drag_origin_x = get_cursor_x();
4821                         mwindow->session->drag_origin_y = get_cursor_y();
4822                         mwindow->session->drag_start = position;
4823
4824                         rerender = start_selection(position);
4825                         update_overlay = 1;
4826                 }
4827         }
4828         else if( result < 0 && !edit_result->silence() ) {
4829                 mwindow->undo->update_undo_before();
4830                 if( !shift_down() ) {
4831                         if( handle_result == 0 )
4832                                 edit_result->hard_left = !edit_result->hard_left;
4833                         else if( handle_result == 1 )
4834                                 edit_result->hard_right = !edit_result->hard_right;
4835                 }
4836                 else {
4837                         int status = handle_result == 0 ? edit_result->hard_left :
4838                                      handle_result == 1 ? edit_result->hard_right : 0;
4839                         int new_status = !status;
4840                         int64_t edit_edge = edit_result->startproject;
4841                         if( handle_result == 1 ) edit_edge += edit_result->length;
4842                         double edge_position = edit_result->track->from_units(edit_edge);
4843                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4844                                 if( track->is_hidden() ) continue;
4845                                 int64_t track_position = track->to_units(edge_position, 1);
4846                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4847                                 if( left_edit ) {
4848                                         int64_t left_edge = left_edit->startproject;
4849                                         double left_position = track->from_units(left_edge);
4850                                         if( EQUIV(edge_position, left_position) ) {
4851                                                 left_edit->hard_left = new_status;
4852                                                 if( left_edit->previous )
4853                                                         left_edit->previous->hard_right = new_status;
4854                                         }
4855                                 }
4856                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4857                                 if( right_edit ) {
4858                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4859                                         double right_position = track->from_units(right_edge);
4860                                         if( EQUIV(edge_position, right_position) ) {
4861                                                 right_edit->hard_right = new_status;
4862                                                 if( right_edit->next )
4863                                                         right_edit->next->hard_left = new_status;
4864                                         }
4865                                 }
4866                         }
4867                 }
4868                 rerender = update_overlay = 1;
4869                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4870                 result = 1;
4871         }
4872
4873         return result;
4874 }
4875
4876 int TrackCanvas::do_plugin_handles(int cursor_x,
4877         int cursor_y,
4878         int button_press,
4879         int &rerender,
4880         int &update_overlay,
4881         int &new_cursor,
4882         int &update_cursor)
4883 {
4884         Plugin *plugin_result = 0;
4885         int handle_result = 0;
4886         int result = 0;
4887
4888         for(Track *track = mwindow->edl->tracks->first;
4889                 track && !result;
4890                 track = track->next) {
4891                 if( track->is_hidden() ) continue;
4892                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4893                         PluginSet *plugin_set = track->plugin_set.values[i];
4894                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4895                                 plugin && !result;
4896                                 plugin = (Plugin*)plugin->next) {
4897                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4898                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4899
4900                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4901                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4902                                         if(cursor_x < plugin_x + HANDLE_W) {
4903                                                 plugin_result = plugin;
4904                                                 handle_result = 0;
4905                                                 result = 1;
4906                                         }
4907                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4908                                                 plugin_result = plugin;
4909                                                 handle_result = 1;
4910                                                 result = 1;
4911                                         }
4912                                 }
4913                         }
4914
4915                         if(result && shift_down())
4916                                 mwindow->session->trim_edits = plugin_set;
4917                 }
4918         }
4919
4920         update_cursor = 1;
4921         if(result) {
4922                 double position = 0;
4923                 if(handle_result == 0) {
4924                         position = plugin_result->track->from_units(plugin_result->startproject);
4925                         new_cursor = LEFT_CURSOR;
4926                 }
4927                 else if(handle_result == 1) {
4928                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4929                         new_cursor = RIGHT_CURSOR;
4930                 }
4931
4932                 if(button_press) {
4933                         mwindow->session->drag_plugin = plugin_result;
4934                         mwindow->session->drag_handle = handle_result;
4935                         mwindow->session->drag_button = get_buttonpress() - 1;
4936                         mwindow->session->drag_position = position;
4937                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4938                         mwindow->session->drag_origin_x = get_cursor_x();
4939                         mwindow->session->drag_origin_y = get_cursor_y();
4940                         mwindow->session->drag_start = position;
4941
4942                         rerender = start_selection(position);
4943                         update_overlay = 1;
4944                 }
4945         }
4946
4947         return result;
4948 }
4949
4950
4951 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4952 {
4953         int result = 0;
4954
4955         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4956         drag_cursor_motion(cursor_x, cursor_y,
4957                 &track, &edit, &pluginset, &plugin);
4958
4959         if( button_press && track ) {
4960                 switch( get_buttonpress() ) {
4961                 case RIGHT_BUTTON: {
4962                         double position =
4963                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4964                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
4965                         mwindow->session->current_operation = NO_OPERATION;
4966                         result = 1;
4967                         break; }
4968                 case MIDDLE_BUTTON:
4969                         set_cursor(GRABBED_CURSOR, 0, 1);
4970                         mwindow->session->current_operation = DROP_TARGETING;
4971                         result = 1;
4972                         break;
4973                 }
4974         }
4975
4976         return result;
4977 }
4978
4979 int TrackCanvas::arrow_mode()
4980 {
4981         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
4982 }
4983 int TrackCanvas::ibeam_mode()
4984 {
4985         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
4986 }
4987
4988 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4989         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4990 {
4991         int result = 0;
4992
4993         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4994                 if( track->is_hidden() ) continue;
4995                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4996                         int64_t edit_x, edit_y, edit_w, edit_h;
4997                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4998
4999 // Cursor inside a track
5000 // Cursor inside an edit
5001                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
5002                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
5003                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
5004                                         if( get_double_click() ) {
5005                                                 mwindow->edl->tracks->clear_selected_edits();
5006                                                 edit->select_affected_edits(1, -1);
5007                                                 double start = edit->track->from_units(edit->startproject);
5008                                                 start = mwindow->edl->align_to_frame(start, 0);
5009                                                 mwindow->edl->local_session->set_selectionstart(start);
5010                                                 double end = edit->track->from_units(edit->startproject+edit->length);
5011                                                 end = mwindow->edl->align_to_frame(end, 0);
5012                                                 mwindow->edl->local_session->set_selectionend(end);
5013                                                 result = 1; // Select edit duration or select_region
5014                                         }
5015                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
5016                                                 mwindow->session->drag_edit = edit;
5017                                                 mwindow->session->current_operation = GROUP_TOGGLE;
5018                                                 result = 1;
5019                                         }
5020                                         if( result ) {
5021                                                 rerender = 1;
5022                                                 update_cursor = -1;
5023                                         }
5024                                 }
5025                                 else if( drag_start && track->is_armed() ) {
5026                                         mwindow->session->drag_edit = edit;
5027                                         mwindow->session->drag_origin_x = cursor_x;
5028                                         mwindow->session->drag_origin_y = cursor_y;
5029 // Where the drag started, so we know relative position inside the edit later
5030                                         mwindow->session->drag_position =
5031                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
5032                                         drag_start = 0; // if unselected "fast" drag
5033                                         if( !edit->silence() && !edit->is_selected ) {
5034                                                 mwindow->edl->tracks->clear_selected_edits();
5035                                                 if( ibeam_mode() ) {
5036                                                         double start = edit->track->from_units(edit->startproject);
5037                                                         mwindow->edl->local_session->set_selectionstart(start);
5038                                                         mwindow->edl->local_session->set_selectionend(start);
5039                                                         edit->set_selected(1);
5040                                                 }
5041                                                 else
5042                                                         edit->select_affected_edits(1, -1);
5043                                                 drag_start = 1;
5044                                         }
5045 // Construct list of all affected edits
5046                                         if( drag_start || ibeam_mode() ) {
5047                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
5048                                                 if( mwindow->session->drag_edits->size() > 0 ) {
5049                                                         mwindow->session->current_operation = DRAG_EDIT;
5050 // Need to create drag window
5051                                                         int cx, cy;  get_abs_cursor(cx, cy);
5052                                                         gui->drag_popup = new BC_DragWindow(gui,
5053                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
5054                                                         result = 1;
5055                                                 }
5056                                                 else {
5057                                                         rerender = start_selection(mwindow->session->drag_position);
5058                                                         mwindow->session->current_operation = SELECT_REGION;
5059                                                         update_cursor = 1;
5060                                                 }
5061                                         }
5062                                         else if( edit->is_selected && arrow_mode() ) {
5063                                                 if( mwindow->session->drag_group )
5064                                                         mwindow->session->drag_group->remove_user();
5065                                                 double start_position = 0;
5066                                                 mwindow->session->drag_group =
5067                                                         mwindow->edl->selected_edits_to_clip(0, &start_position,
5068                                                                 &mwindow->session->drag_group_first_track);
5069                                                 if( mwindow->session->drag_group ) {
5070                                                         mwindow->session->current_operation = DRAG_GROUP;
5071                                                         mwindow->session->drag_group_position = start_position;
5072                                                         mwindow->session->drag_group_edit = edit;
5073                                                         mwindow->session->drag_origin_y = edit_y;
5074                                                         result = 1;
5075                                                 }
5076                                         }
5077                                 }
5078                         }
5079                 }
5080         }
5081         return result;
5082 }
5083
5084 // returns -1=doesnt fit, 1=fits, 0=fits but overwrites
5085 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
5086 {
5087         int intersects = 0;
5088         Track *src = group->tracks->first;
5089         for( Track *track=first_track; track && src; track=track->next ) {
5090                 if( !track->is_armed() ) return -1;
5091                 if( src->data_type != track->data_type ) return -1;
5092                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
5093                         if( src_edit->silence() ) continue;
5094                         if( !intersects && edit_intersects(track, src_edit, pos) )
5095                                 intersects = 1;
5096                 }
5097                 src = src->next;
5098         }
5099         return src ? -1 : !intersects ? 1 : 0;
5100 }
5101
5102 int TrackCanvas::edit_intersects(Track *track, Edit *src_edit, double &pos)
5103 {
5104         if( pos < 0 ) { pos = 0;  return 1; }
5105         int pane_no = pane->number;
5106         int cur_pix = track->edl->get_position_cursorx(pos, pane_no);
5107         int64_t src_start = src_edit->startproject;
5108         int64_t src_end = src_start + src_edit->length;
5109         double new_start = src_edit->track->from_units(src_start) + pos;
5110         double new_end = src_edit->track->from_units(src_end) + pos;
5111         int64_t trk_start = track->to_units(new_start, 1);
5112         int64_t trk_end = track->to_units(new_end, 1);
5113         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
5114                 if( edit->is_selected || edit->silence() ) continue;
5115                 int64_t edit_start = edit->startproject;
5116                 if( edit_start >= trk_end ) continue;
5117                 int64_t edit_end = edit_start + edit->length;
5118                 if( trk_start >= edit_end ) continue;
5119
5120                 int64_t lt_dist = labs(trk_end - edit_start);
5121                 int64_t rt_dist = labs(edit_end - trk_start);
5122                 int64_t position;
5123                 if( lt_dist < rt_dist ) {
5124                         position = edit_start;
5125                         lt_dist = abs(trk_start - edit_start);
5126                         rt_dist = abs(trk_end - edit_start);
5127                         if( lt_dist > rt_dist )
5128                                 position -= src_end;
5129                 }
5130                 else {
5131                         position = edit_end;
5132                         lt_dist = abs(trk_start - edit_end);
5133                         rt_dist = abs(trk_end - edit_end);
5134                         if( lt_dist > rt_dist )
5135                                 position -= src_end;
5136                 }
5137                 double new_pos = edit->track->from_units(position);
5138                 int new_pix = track->edl->get_position_cursorx(new_pos, pane_no);
5139                 if( abs(new_pix-cur_pix) < HANDLE_W )
5140                         pos = new_pos;
5141                 return 1;
5142         }
5143         return 0;
5144 }
5145
5146 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5147 {
5148         return 0;
5149 }
5150
5151 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5152         int button_press, int &redraw, int &rerender)
5153 {
5154         Plugin *plugin = 0;
5155         int result = 0;
5156         int done = 0;
5157         int64_t x, y, w, h;
5158         Track *track = 0;
5159
5160         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5161                 if(!track->expand_view) continue;
5162
5163                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5164                         // first check if plugins are visible at all
5165                         if (!track->expand_view)
5166                                 continue;
5167                         PluginSet *plugin_set = track->plugin_set.values[i];
5168                         for(plugin = (Plugin*)plugin_set->first;
5169                                 plugin && !done;
5170                                 plugin = (Plugin*)plugin->next) {
5171                                 plugin_dimensions(plugin, x, y, w, h);
5172                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5173                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5174                                         if(cursor_x >= x && cursor_x < x + w &&
5175                                                 cursor_y >= y && cursor_y < y + h) {
5176                                                 done = 1;
5177                                                 break;
5178                                         }
5179                                 }
5180                         }
5181                 }
5182         }
5183
5184         if(plugin) {
5185 // Start plugin popup
5186                 if(button_press) {
5187                         if(get_buttonpress() == RIGHT_BUTTON ) {
5188                                 gui->plugin_menu->update(plugin);
5189                                 gui->plugin_menu->activate_menu();
5190                                 result = 1;
5191                         }
5192                         else if (get_double_click() && !drag_start) {
5193 // Select range of plugin on doubleclick over plugin
5194                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5195                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5196                                         plugin->track->from_units(plugin->length));
5197                                 if(mwindow->edl->session->cursor_on_frames) {
5198                                         mwindow->edl->local_session->set_selectionstart(
5199                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5200                                         mwindow->edl->local_session->set_selectionend(
5201                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5202                                 }
5203                                 rerender = 1;
5204                                 redraw = 1;
5205                                 result = 1;
5206                         }
5207                 }
5208                 else
5209 // Move plugin
5210                 if( drag_start && plugin->track->is_armed() && !plugin->silence() ) {
5211                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5212                                 if( plugin->track->data_type == TRACK_AUDIO )
5213                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5214                                 else if( plugin->track->data_type == TRACK_VIDEO )
5215                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5216
5217                                 mwindow->session->drag_plugin = plugin;
5218                                 mwindow->session->drag_origin_x = cursor_x;
5219                                 mwindow->session->drag_origin_y = cursor_y;
5220                                 // Where the drag started, so we know relative position inside the edit later
5221                                 mwindow->session->drag_position =
5222                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5223                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5224 // Create picon
5225                                 switch(plugin->plugin_type) {
5226                                 case PLUGIN_STANDALONE: {
5227                                         PluginServer *server =
5228                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5229                                         if( !server ) break;
5230                                         VFrame *frame = server->picon;
5231                                         if(!frame) {
5232                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5233                                                         frame = mwindow->theme->get_image("aeffect_icon");
5234                                                 }
5235                                                 else {
5236                                                         frame = mwindow->theme->get_image("veffect_icon");
5237                                                 }
5238                                         }
5239                                         int cx, cy;
5240                                         get_abs_cursor(cx, cy);
5241                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5242                                                 break; }
5243
5244                                 case PLUGIN_SHAREDPLUGIN:
5245                                 case PLUGIN_SHAREDMODULE: {
5246                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5247                                         int cx, cy;
5248                                         get_abs_cursor(cx, cy);
5249                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5250                                         break; }
5251                                 }
5252
5253                                 result = 1;
5254                         }
5255                 }
5256         }
5257
5258         return result;
5259 }
5260
5261 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5262         int button_press, int &new_cursor, int &update_cursor)
5263 {
5264         Transition *transition = 0;
5265         int result = 0;
5266         int64_t x, y, w, h;
5267
5268
5269         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5270                 if( track->is_hidden() ) continue;
5271                 if( !track->show_transitions() ) continue;
5272
5273                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5274                         if( edit->transition ) {
5275                                 edit_dimensions(edit, x, y, w, h);
5276                                 get_transition_coords(edit, x, y, w, h);
5277
5278                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5279                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5280                                         if( cursor_x >= x && cursor_x < x + w &&
5281                                                 cursor_y >= y && cursor_y < y + h ) {
5282                                                 transition = edit->transition;
5283                                                 result = 1;
5284                                                 break;
5285                                         }
5286                                 }
5287                         }
5288                 }
5289         }
5290
5291         update_cursor = 1;
5292         if(transition) {
5293                 if(!button_press) {
5294                         new_cursor = UPRIGHT_ARROW_CURSOR;
5295                 }
5296                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5297                         gui->transition_menu->update(transition);
5298                         gui->transition_menu->activate_menu();
5299                 }
5300         }
5301
5302         return result;
5303 }
5304
5305 int TrackCanvas::button_press_event()
5306 {
5307         int result = 0;
5308         int cursor_x, cursor_y;
5309         int new_cursor;
5310
5311         cursor_x = get_cursor_x();
5312         cursor_y = get_cursor_y();
5313         mwindow->session->trim_edits = 0;
5314
5315         if(is_event_win() && cursor_inside()) {
5316 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5317
5318                 result = 1;
5319                 if(!active) {
5320                         activate();
5321                 }
5322
5323                 if( get_buttonpress() == LEFT_BUTTON ) {
5324                         gui->stop_transport("TrackCanvas::button_press_event");
5325                 }
5326
5327                 int update_overlay = 0, update_cursor = 0, rerender = 0, update_message = 0;
5328
5329                 if(get_buttonpress() == WHEEL_UP) {
5330                         if(shift_down())
5331                                 mwindow->expand_sample();
5332                         else if(ctrl_down())
5333                                 mwindow->move_left(get_w()/ 10);
5334                         else
5335                                 mwindow->move_up(get_h() / 10);
5336                 }
5337                 else if(get_buttonpress() == WHEEL_DOWN) {
5338                         if(shift_down())
5339                                 mwindow->zoom_in_sample();
5340                         else if(ctrl_down())
5341                                 mwindow->move_right(get_w() / 10);
5342                         else
5343                                 mwindow->move_down(get_h() / 10);
5344                 }
5345                 else if(get_buttonpress() == 6) {
5346                         if(ctrl_down())
5347                                 mwindow->move_left(get_w());
5348                         else if(alt_down())
5349                                 mwindow->move_left(get_w() / 20);
5350                         else
5351                                 mwindow->move_left(get_w() / 5);
5352                 }
5353                 else if(get_buttonpress() == 7) {
5354                         if(ctrl_down())
5355                                 mwindow->move_right(get_w());
5356                         else if(alt_down())
5357                                 mwindow->move_right(get_w() / 20);
5358                         else
5359                                 mwindow->move_right(get_w() / 5);
5360                 }
5361                 else {
5362                         if( arrow_mode() ) do {
5363 // Test handles and resource boundaries and highlight a track
5364                                 if( do_transitions(cursor_x, cursor_y,
5365                                                 1, new_cursor, update_cursor) ) break;
5366
5367                                 if( do_keyframes(cursor_x, cursor_y,
5368                                         0, get_buttonpress(), new_cursor,
5369                                         update_cursor, rerender) ) break;
5370                                 update_message = 1;
5371 // Test edit boundaries
5372                                 if( do_edit_handles(cursor_x, cursor_y,
5373                                         1, rerender, update_overlay, new_cursor,
5374                                         update_cursor) ) break;
5375 // Test plugin boundaries
5376                                 if( do_plugin_handles(cursor_x, cursor_y,
5377                                         1, rerender, update_overlay, new_cursor,
5378                                         update_cursor) ) break;
5379
5380                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5381                                         update_overlay, rerender, new_cursor,
5382                                         update_cursor) ) break;
5383
5384                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5385                                         update_cursor, rerender) ) break;
5386
5387                                 if( test_resources(cursor_x, cursor_y) ) break;
5388
5389                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5390
5391                                 result = 0;
5392                         } while(0);
5393                         else if( ibeam_mode() ) do {
5394 // Test handles only and select a region
5395                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5396 //printf("TrackCanvas::button_press_event %d\n", position);
5397
5398                                 if( do_transitions(cursor_x, cursor_y,
5399                                                 1, new_cursor, update_cursor)) break;
5400                                 if(do_keyframes(cursor_x, cursor_y,
5401                                         0, get_buttonpress(), new_cursor,
5402                                         update_cursor, rerender)) {
5403                                         update_overlay = 1;
5404                                         break;
5405                                 }
5406                                 update_message = 1;
5407 // Test edit boundaries
5408                                 if( do_edit_handles(cursor_x, cursor_y,
5409                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5410 // Test plugin boundaries
5411                                 if( do_plugin_handles(cursor_x, cursor_y,
5412                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5413
5414                                 if( do_edits(cursor_x, cursor_y,
5415                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5416
5417                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5418
5419                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5420 // Highlight selection
5421                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5422                                 rerender = start_selection(position);
5423                                 mwindow->session->current_operation = SELECT_REGION;
5424                                 update_cursor = 1;
5425                         } while(0);
5426                 }
5427
5428                 if( rerender ) {
5429                         gui->unlock_window();
5430                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5431                         gui->lock_window("TrackCanvas::button_press_event 2");
5432 // Update faders
5433                         mwindow->update_plugin_guis();
5434                         gui->update_patchbay();
5435                 }
5436
5437                 if( update_message )
5438                         gui->default_message();
5439
5440                 if( update_overlay )
5441                         gui->draw_overlays(1);
5442
5443                 if( update_cursor < 0 ) {
5444 // double_click edit
5445                         gui->swindow->update_selection();
5446                         gui->draw_canvas(0, 0);
5447                 }
5448                 if( update_cursor ) {
5449                         gui->update_timebar(0);
5450                         gui->hide_cursor(0);
5451                         gui->show_cursor(1);
5452                         gui->zoombar->update();
5453                         gui->flash_canvas(1);
5454                 }
5455         }
5456
5457         return result;
5458 }
5459
5460 int TrackCanvas::start_selection(double position)
5461 {
5462         int rerender = 0;
5463         position = mwindow->edl->align_to_frame(position, 1);
5464
5465
5466 // Extend a border
5467         if(shift_down())
5468         {
5469                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5470                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5471
5472                 if(position < midpoint)
5473                 {
5474                         mwindow->edl->local_session->set_selectionstart(position);
5475                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5476 // Que the CWindow
5477                         rerender = 1;
5478                 }
5479                 else
5480                 {
5481                         mwindow->edl->local_session->set_selectionend(position);
5482                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5483 // Don't que the CWindow for the end
5484                 }
5485         }
5486         else
5487 // Start a new selection
5488         {
5489 //printf("TrackCanvas::start_selection %f\n", position);
5490                 mwindow->edl->local_session->set_selectionstart(position);
5491                 mwindow->edl->local_session->set_selectionend(position);
5492                 selection_midpoint = position;
5493 // Que the CWindow
5494                 rerender = 1;
5495         }
5496
5497         return rerender;
5498 }
5499
5500 void TrackCanvas::end_edithandle_selection()
5501 {
5502         mwindow->modify_edithandles();
5503 }
5504
5505 void TrackCanvas::end_pluginhandle_selection()
5506 {
5507         mwindow->modify_pluginhandles();
5508 }
5509
5510
5511 double TrackCanvas::time_visible()
5512 {
5513         return (double)get_w() *
5514                 mwindow->edl->local_session->zoom_sample /
5515                 mwindow->edl->session->sample_rate;
5516 }
5517
5518
5519 void TrackCanvas::show_message(Auto *current, int box_color, const char *fmt, ...)
5520 {
5521         char string[BCTEXTLEN];
5522         char *cp = string, *ep = cp + sizeof(string)-1;
5523         if( box_color >= 0 ) {
5524                 cp += snprintf(string, ep-cp, "%-8s ",
5525                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5526         }
5527         char string2[BCTEXTLEN];
5528         Units::totext(string2,
5529                 current->autos->track->from_units(current->position),
5530                 mwindow->edl->session->time_format,
5531                 mwindow->edl->session->sample_rate,
5532                 mwindow->edl->session->frame_rate,
5533                 mwindow->edl->session->frames_per_foot);
5534         cp += snprintf(cp, ep-cp, "%s", string2);
5535         va_list ap;
5536         va_start(ap, fmt);
5537         vsnprintf(cp, ep-cp, fmt, ap);
5538         va_end(ap);
5539         gui->show_message(string, -1, box_color);
5540 }
5541
5542 // Patchbay* TrackCanvas::get_patchbay()
5543 // {
5544 //      if(pane->patchbay) return pane->patchbay;
5545 //      if(gui->total_panes() == 2 &&
5546 //              gui->pane[TOP_LEFT_PANE] &&
5547 //              gui->pane[TOP_RIGHT_PANE])
5548 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5549 //      if(gui->total_panes() == 4)
5550 //      {
5551 //              if(pane->number == TOP_RIGHT_PANE)
5552 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5553 //              else
5554 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5555 //      }
5556 //
5557 //      return 0;
5558 // }
5559
5560