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                         int64_t track_x, track_y, track_w, track_h;
 214                         track_dimensions(track, track_x, track_y, track_w, track_h);
 215
 216                         if(cursor_y >= track_y &&
 217                                 cursor_y < track_y + track_h)
 218                         {
 219                                 *over_track = track;
 220                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
 221                                 {
 222                                         int64_t edit_x, edit_y, edit_w, edit_h;
 223                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 224                                         if( cursor_y < edit_y || cursor_y >= edit_y + edit_h ) continue;
 225                                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w ) {
 226                                                 *over_edit = edit;
 227                                                 break;
 228                                         }
 229                                         if( edit != track->edits->last ) continue;
 230                                         if( mwindow->session->current_operation != DRAG_ATRANSITION &&
 231                                             mwindow->session->current_operation != DRAG_VTRANSITION ) continue;
 232                                         if( !edit->silence() ) {
 233                                                 // add silence to allow drag transition past last edit
 234                                                 //  will be deleted by Edits::optimize if not used
 235                                                 double length = mwindow->edl->session->default_transition_length;
 236                                                 int64_t start = edit->startproject+edit->length;
 237                                                 int64_t units = track->to_units(length, 1);
 238                                                 track->edits->create_silence(start, start+units);
 239                                                 continue;
 240                                         }
 241                                         if( cursor_x >= edit_x ) { *over_edit = edit; break; }
 242                                 }
 243
 244                                 for(int i = 0; i < track->plugin_set.total; i++)
 245                                 {
 246                                         PluginSet *pluginset = track->plugin_set.values[i];
 247                                         for(Plugin *plugin = (Plugin*)pluginset->first;
 248                                                 plugin;
 249                                                 plugin = (Plugin*)plugin->next)
 250                                         {
 251                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
 252                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
 253
 254                                                 if(cursor_y >= plugin_y &&
 255                                                         cursor_y < plugin_y + plugin_h)
 256                                                 {
 257                                                         *over_pluginset = plugin->plugin_set;
 258
 259                                                         if(cursor_x >= plugin_x &&
 260                                                                 cursor_x < plugin_x + plugin_w)
 261                                                         {
 262                                                                 *over_plugin = plugin;
 263                                                                 break;
 264                                                         }
 265                                                 }
 266                                         }
 267                                 }
 268                                 break;
 269                         }
 270                 }
 271         }
 272
 273         return 0;
 274 }
 275
 276
 277 int TrackCanvas::drag_stop_event()
 278 {
 279         int result = gui->drag_stop();
 280         if( !result && mwindow->session->current_operation ) {
 281                 mwindow->session->current_operation = NO_OPERATION;
 282                 drag_scroll = 0;
 283         }
 284         return result;
 285 }
 286
 287 int TrackCanvas::drag_stop(int *redraw)
 288 {
 289         int result = 0;
 290         int insertion  = 0;
 291         int over_window = 0;
 292         int cursor_x = -1, cursor_y = -1;
 293
 294         if( get_cursor_over_window() ) {
 295                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
 296                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
 297                         over_window = 1;
 298                 else {
 299                         Track *track = pane->over_patchbay();
 300                         if( track && mwindow->session->track_highlighted == track )
 301                                 over_window = 1;
 302                 }
 303         }
 304
 305         if( over_window ) {
 306                 switch(mwindow->session->current_operation) {
 307                 case DRAG_VTRANSITION:
 308                 case DRAG_ATRANSITION:
 309                         if(mwindow->session->edit_highlighted) {
 310                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
 311                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 312                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
 313                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
 314                                         mwindow->session->current_operation = NO_OPERATION;
 315                                         mwindow->paste_transition();
 316                                         result = 1;
 317                                 }
 318                         }
 319                         *redraw = 1;
 320                         break;
 321
 322 // Behavior for dragged plugins is limited by the fact that a shared plugin
 323 // can only refer to a standalone plugin that exists in the same position in
 324 // time.  Dragging a plugin from one point in time to another can't produce
 325 // a shared plugin to the original plugin.  In this case we relocate the
 326 // plugin instead of sharing it.
 327                 case DRAG_AEFFECT_COPY:
 328                 case DRAG_VEFFECT_COPY:
 329                         if( mwindow->session->track_highlighted &&
 330                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
 331                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 332                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
 333                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 334                                 mwindow->session->current_operation = NO_OPERATION;
 335
 336                                 int64_t drop_position = -1;
 337                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
 338                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
 339                                 Track *hi_track = mwindow->session->track_highlighted;
 340
 341 // Insert shared plugin in source
 342 // Move source to different location
 343                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
 344 //printf("TrackCanvas::drag_stop 6\n");
 345                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
 346                                         if( drop_position < 0 ) {
 347                                                 result = 1;
 348                                                 break;          // Do not do anything
 349                                         }
 350
 351                                         Track *track = mwindow->session->track_highlighted;
 352                                         drop_position = track->frame_align(drop_position, 0);
 353                                         mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
 354                                         result = 1;
 355                                 }
 356                                 else if( hi_track ) {
 357 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
 358                                         Edit *hi_edit = mwindow->session->edit_highlighted;
 359                                         drop_position = hi_edit ? hi_edit->startproject : 0;
 360                                         if( drop_position < 0 ) {
 361                                                 result = 1;
 362                                                 break;          // Do not do anything
 363                                         }
 364
 365                                         Track *track = mwindow->session->track_highlighted;
 366                                         drop_position = track->frame_align(drop_position, 0);
 367                                         mwindow->move_effect(drag_plugin, hi_track, drop_position);
 368                                         result = 1;
 369                                 }
 370                         }
 371                         break;
 372
 373                 case DRAG_AEFFECT:
 374                 case DRAG_VEFFECT:
 375                         if( mwindow->session->track_highlighted &&
 376                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
 377                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 378                              (mwindow->session->current_operation == DRAG_VEFFECT &&
 379                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 380 // Drop all the effects
 381                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
 382                                 Track *track = mwindow->session->track_highlighted;
 383                                 double start = 0;
 384                                 double length = track->get_length();
 385
 386                                 if(mwindow->session->plugin_highlighted) {
 387                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
 388                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
 389                                         if(length <= 0) length = track->get_length();
 390                                 }
 391                                 else if(mwindow->session->pluginset_highlighted) {
 392                                                 start = track->from_units(plugin_set->length());
 393                                         length = track->get_length() - start;
 394                                         if(length <= 0) length = track->get_length();
 395                                 }
 396                                 else if(mwindow->edl->local_session->get_selectionend() >
 397                                         mwindow->edl->local_session->get_selectionstart()) {
 398                                         start = mwindow->edl->local_session->get_selectionstart();
 399                                         length = mwindow->edl->local_session->get_selectionend() -
 400                                                 mwindow->edl->local_session->get_selectionstart();
 401                                 }
 402 // Move to a point between two edits
 403                                 else if(mwindow->session->edit_highlighted) {
 404                                         start = mwindow->session->track_highlighted->from_units(
 405                                                 mwindow->session->edit_highlighted->startproject);
 406                                         length = mwindow->session->track_highlighted->from_units(
 407                                                 mwindow->session->edit_highlighted->length);
 408                                 }
 409                                 start = mwindow->edl->align_to_frame(start, 0);
 410                                 mwindow->insert_effects_canvas(start, length);
 411                                 *redraw = 1;
 412                         }
 413                         if( mwindow->session->track_highlighted )
 414                                 result = 1;  // we have to cleanup
 415                         break;
 416
 417                 case DRAG_ASSET:
 418                         if(mwindow->session->track_highlighted) {
 419                                 double asset_duration = 0;
 420                                 int64_t asset_length_units = 0;
 421
 422                                 if(mwindow->session->current_operation == DRAG_ASSET &&
 423                                         mwindow->session->drag_assets->total) {
 424                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
 425                                         // we use video if we are over video and audio if we are over audio
 426                                         if( indexable->have_video() &&
 427                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
 428                                                 // Images have length -1
 429                                                 int64_t video_length = indexable->get_video_frames();
 430                                                 if (video_length < 0) {
 431                                                         if(mwindow->edl->session->si_useduration)
 432                                                                 video_length = mwindow->edl->session->si_duration;
 433                                                         else
 434                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ;
 435                                                 }
 436                                                 asset_duration = video_length / indexable->get_frame_rate();
 437                                         }
 438                                         else if( indexable->have_audio() &&
 439                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
 440                                                 int64_t audio_length = indexable->get_audio_samples();
 441                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
 442                                         }
 443                                         else {
 444                                                 result = 1;
 445                                                 break;  // Do not do anything
 446                                         }
 447                                 }
 448                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
 449                                          mwindow->session->drag_clips->total ) {
 450                                         EDL *clip = mwindow->session->drag_clips->values[0];
 451                                         asset_duration = clip->tracks->total_length();
 452                                 }
 453                                 else {
 454                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
 455                                 }
 456
 457                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
 458                                 int64_t drop_position = drop_edit_position (&insertion, NULL, asset_length_units);
 459                                 if( drop_position < 0 ) {
 460                                         result = 1;
 461                                         break;          // Do not do anything
 462                                 }
 463
 464                                 Track *track = mwindow->session->track_highlighted;
 465                                 double track_position = track->from_units(drop_position);
 466                                 track_position = mwindow->edl->align_to_frame(track_position, 0);
 467
 468 //                              if (!insertion) {
 469 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
 470 //                                      // Unfortunately, this is _a lot_ of work to do right
 471 //                                      printf("Problematic insertion\n");
 472 //                                      mwindow->edl->tracks->clear(track_position,
 473 //                                              track_position + asset_duration, 0);
 474 //                              }
 475                                 mwindow->paste_assets(track_position, track, !insertion);
 476                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
 477                         }
 478                         break;
 479
 480                 case DRAG_EDIT:
 481                         mwindow->session->current_operation = NO_OPERATION;
 482                         if(mwindow->session->track_highlighted) {
 483                                 if( mwindow->session->track_highlighted->data_type ==
 484                                         mwindow->session->drag_edit->track->data_type) {
 485                                         int64_t drop_position = drop_edit_position(&insertion,
 486                                                         mwindow->session->drag_edit,
 487                                                         mwindow->session->drag_edit->length);
 488                                         if( drop_position < 0 ) {
 489                                                 result = 1;
 490                                                 break;          // Do not do anything
 491                                         }
 492                                         Track *track = mwindow->session->track_highlighted;
 493                                         double track_position = track->from_units(drop_position);
 494                                         track_position = mwindow->edl->align_to_frame(track_position, 0);
 495                                         mwindow->move_edits(mwindow->session->drag_edits,
 496                                                         track, track_position, !insertion);
 497                                 }
 498
 499                                 result = 1;
 500                         }
 501                         break;
 502                 case DRAG_GROUP:
 503                         mwindow->session->current_operation = NO_OPERATION;
 504                         EDL *drag_group = mwindow->session->drag_group;
 505                         if( drag_group ) {
 506                                 Track *drop_track = mwindow->session->track_highlighted;
 507                                 Track *drag_track = mwindow->session->drag_group_first_track;
 508                                 Edit *drag_edit = mwindow->session->drag_group_edit;
 509                                 Track *edit_track = drag_edit ? drag_edit->track : 0;
 510                                 while( drop_track && edit_track ) {
 511                                         if( edit_track == drag_track ) break;
 512                                         edit_track = edit_track->previous;
 513                                         drop_track = drop_track->previous;
 514                                 }
 515                                 if( drop_track ) {
 516                                         double cur_pos = mwindow->session->drag_group_position;
 517                                         double new_pos = mwindow->edl->get_cursor_position(cursor_x, pane->number);
 518                                         new_pos -= mwindow->session->drag_position - cur_pos;
 519                                         new_pos = mwindow->edl->align_to_frame(new_pos, 0);
 520                                         double drop_position = new_pos;
 521                                         int ret = test_track_group(drag_group, drop_track, new_pos);
 522                                         if( !ret && new_pos != drop_position ) {
 523                                                 drop_position = new_pos;
 524                                                 ret = test_track_group(drag_group, drop_track, new_pos);
 525                                         }
 526                                         if( ret >= 0 )
 527                                                 mwindow->move_group(drag_group, drop_track, drop_position,
 528                                                         ret > 0 ? !shift_down() : shift_down());
 529                                         drag_group->remove_user();
 530                                         mwindow->session->drag_group = 0;
 531                                 }
 532                         }
 533                         result = 1;
 534                         break;
 535                 }
 536         }
 537
 538         return result;
 539 }
 540
 541 int TrackCanvas::drag_start_event()
 542 {
 543         int result = 0;
 544         int redraw = 0;
 545         int rerender = 0;
 546         int new_cursor, update_cursor;
 547
 548         if( mwindow->session->current_operation == GROUP_TOGGLE )
 549                 mwindow->session->current_operation = NO_OPERATION;
 550         else if( mwindow->session->current_operation != NO_OPERATION )
 551                 return 0;
 552
 553         if(is_event_win()) {
 554                 if(do_plugins(get_drag_x(), get_drag_y(),
 555                                 1, 0, redraw, rerender)) {
 556                         result = 1;
 557                 }
 558                 else if(do_edits(get_drag_x(), get_drag_y(),
 559                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
 560                         result = 1;
 561                 }
 562         }
 563
 564         return result;
 565 }
 566
 567 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
 568 {
 569         // get the canvas/track position
 570         Track *track = mwindow->session->track_highlighted;
 571         int cursor_x = get_relative_cursor_x();
 572         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 573         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 574         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 575         if( position <= 0 ) {
 576                 *is_insertion = 1;
 577                 return 0;
 578         }
 579         double cursor_position = position;
 580         int64_t drop_position = track->to_units(cursor_position, 1);
 581         if( moved_edit ) { // relative cursor position depends upon drop point
 582                 double moved_edit_start = moved_edit->track->from_units(moved_edit->startproject);
 583                 position -= mwindow->session->drag_position - moved_edit_start;
 584         }
 585         int64_t edit_position = track->to_units(position, 1);
 586         int64_t grab_position = edit_position;
 587         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
 588                 grab_position -= moved_edit_length / 2;
 589         Edit *last_edit = track->edits->last;
 590         if( !last_edit || edit_position >= (last_edit->startproject+last_edit->length) ) {
 591                 *is_insertion = 0;
 592                 return edit_position;
 593         }
 594
 595         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 596         Edit *next_edit = track->edits->first;
 597         while( next_edit ) {
 598                 Edit *edit = next_edit;  next_edit = (Edit *)edit->next;
 599                 int64_t edit_start = edit->startproject;
 600                 int64_t edit_end = edit_start + edit->length;
 601                 double edit_start_pos = edit->track->from_units(edit_start);
 602                 if( (fabs(edit_start_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 603                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
 604                         return edit_start;
 605                 }
 606                 double edit_end_pos = edit->track->from_units(edit_end);
 607                 if( (fabs(edit_end_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 608                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
 609                         return edit_end;
 610                 }
 611                 if( edit != moved_edit && !edit->silence() )
 612                         drop_start = edit_end; // reset drop zone
 613                 if( next_edit ) {
 614                         if( next_edit == moved_edit || next_edit->silence() ) continue;
 615                         drop_end = edit_end;
 616                 }
 617                 else
 618                         drop_end = INT64_MAX;
 619                 if( edit_position >= drop_start &&
 620                     edit_position+moved_edit_length < drop_end ) {
 621                         *is_insertion = 0; // fits in the zone
 622                         return edit_position;
 623                 }
 624                 if( drop_position < drop_end ) { // drop in the zone
 625                         if( (drop_end - drop_start) >= moved_edit_length ) {
 626                                 *is_insertion = 0; // fits in the zone, but over the edge
 627                                 int64_t dx0 = llabs(drop_position - drop_start);
 628                                 int64_t dx1 = llabs(drop_position - drop_end);
 629                                 return dx0 < dx1 ? drop_start : drop_end - moved_edit_length;
 630                         }
 631                         *is_insertion = 1;
 632                         int64_t edit_center = (edit_start + edit_end) / 2;
 633                         return position < edit_center ? drop_start : drop_end;
 634                 }
 635         }
 636
 637         *is_insertion = 0;
 638         return -1;
 639 }
 640
 641 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
 642 {
 643         // get the canvas/track position
 644         Track *track = plugin_set->track;
 645         double moved_plugin_length = moved_plugin->track->from_units(moved_plugin->length);
 646         int64_t track_plugin_length = track->to_units(moved_plugin_length, 0);
 647         int cursor_x = get_relative_cursor_x();
 648         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 649         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 650         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 651         if( position <= 0 ) return 0;
 652         int64_t drop_position = track->to_units(position, 1);
 653         Plugin *last_plugin = (Plugin *)plugin_set->last;
 654         if( !last_plugin ) return drop_position;
 655         double plugin_set_end = last_plugin->track->from_units(last_plugin->startproject+last_plugin->length);
 656         if( position >= plugin_set_end ) return drop_position;
 657         double moved_plugin_start = moved_plugin->track->from_units(moved_plugin->startproject);
 658         position -= mwindow->session->drag_position - moved_plugin_start;
 659         int64_t plugin_position = track->to_units(position, 1);
 660
 661         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 662         Plugin *next_plugin = (Plugin *)plugin_set->first;
 663         while( next_plugin ) {
 664                 Plugin *plugin = next_plugin;  next_plugin = (Plugin *)plugin->next;
 665                 int64_t plugin_start = plugin->startproject;
 666                 int64_t plugin_end = plugin_start + plugin->length;
 667                 double plugin_end_pos = plugin->track->from_units(plugin_end);
 668                 int64_t track_plugin_end = track->to_units(plugin_end_pos, 0);
 669                 if( plugin != moved_plugin && !plugin->silence() )
 670                         drop_start = track_plugin_end;
 671                 if( next_plugin ) {
 672                         if( next_plugin == moved_plugin || next_plugin->silence() ) continue;
 673                         drop_end = track_plugin_end;
 674                 }
 675                 else
 676                         drop_end = INT64_MAX;
 677                 if( plugin_position >= drop_start && // fits in the zone
 678                     plugin_position+track_plugin_length < drop_end ) {
 679                         return plugin_position;
 680                 }
 681                 if( drop_position < drop_end ) { // drop in the zone
 682                         if( (drop_end - drop_start) >= track_plugin_length ) {
 683                                 int64_t dx0 = llabs(drop_position - drop_start);
 684                                 int64_t dx1 = llabs(drop_position - drop_end);
 685                                 return dx0 < dx1 ? drop_start : drop_end - track_plugin_length;
 686                         }
 687                 }
 688         }
 689
 690         return -1;
 691 }
 692
 693 void TrackCanvas::draw(int mode, int hide_cursor)
 694 {
 695         const int debug = 0;
 696
 697 // Swap pixmap layers
 698         if(get_w() != background_pixmap->get_w() ||
 699                 get_h() != background_pixmap->get_h())
 700         {
 701                 delete background_pixmap;
 702                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 703         }
 704
 705 // Cursor disappears after resize when this is called.
 706 // Cursor doesn't redraw after editing when this isn't called.
 707         if(pane->cursor && hide_cursor) pane->cursor->hide();
 708         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
 709
 710         if(debug) PRINT_TRACE
 711         draw_resources(mode);
 712
 713         if(debug) PRINT_TRACE
 714         draw_overlays();
 715         if(debug) PRINT_TRACE
 716 }
 717
 718 void TrackCanvas::update_cursor(int flush)
 719 {
 720         if( arrow_mode() )
 721                 set_cursor(ARROW_CURSOR, 0, flush);
 722         else if( ibeam_mode() )
 723                 set_cursor(IBEAM_CURSOR, 0, flush);
 724 }
 725
 726
 727 void TrackCanvas::test_timer()
 728 {
 729         if( resource_timer->get_difference() > 1000 && !hourglass_enabled ) {
 730                 start_hourglass();
 731                 hourglass_enabled = 1;
 732         }
 733 }
 734
 735
 736 void TrackCanvas::draw_indexes(Indexable *indexable)
 737 {
 738         IndexState *index_state = indexable->index_state;
 739 // Don't redraw raw samples
 740         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
 741                 return;
 742         draw_resources(NORMAL_DRAW, 1, indexable);
 743         draw_overlays();
 744         flash(0);
 745 }
 746
 747 void TrackCanvas::draw_resources(int mode,
 748         int indexes_only,
 749         Indexable *indexable)
 750 {
 751         const int debug = 0;
 752
 753         if(debug) PRINT_TRACE
 754
 755 // can't stop thread here, because this is called for every pane
 756 //      if(mode != IGNORE_THREAD && !indexes_only)
 757 //              gui->resource_thread->stop_draw(!indexes_only);
 758
 759         if(mode != IGNORE_THREAD &&
 760                 !indexes_only &&
 761                 !gui->resource_thread->interrupted)
 762         {
 763                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
 764                         __LINE__);
 765
 766                 BC_Signals::dump_stack();
 767         }
 768
 769         if(debug) PRINT_TRACE
 770
 771         resource_timer->update();
 772
 773 // Age resource pixmaps for deletion
 774         if(!indexes_only)
 775                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 776                         gui->resource_pixmaps.values[i]->visible--;
 777
 778         if(mode == FORCE_REDRAW)
 779                 gui->resource_pixmaps.remove_all_objects();
 780
 781         if(debug) PRINT_TRACE
 782
 783 // Search every edit
 784         for(Track *current = mwindow->edl->tracks->first;
 785                 current;
 786                 current = NEXT)
 787         {
 788                 if(debug) PRINT_TRACE
 789                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
 790                 {
 791                         if(debug) PRINT_TRACE
 792                         if( current->data_type != TRACK_SUBTITLE )
 793                                 if(!edit->asset && !edit->nested_edl) continue;
 794                         if(indexes_only)
 795                         {
 796                                 if(edit->track->data_type != TRACK_AUDIO) continue;
 797
 798                                 if(edit->nested_edl &&
 799                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
 800
 801                                 if(edit->asset &&
 802                                         strcmp(indexable->path, edit->asset->path)) continue;
 803                         }
 804
 805                         if(debug) PRINT_TRACE
 806
 807                         int64_t edit_x, edit_y, edit_w, edit_h;
 808                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 809
 810 // Edit is visible
 811                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
 812                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
 813                         {
 814                                 int64_t pixmap_x, pixmap_w, pixmap_h;
 815                                 if(debug) PRINT_TRACE
 816
 817 // Search for existing pixmap containing edit
 818                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 819                                 {
 820                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
 821 // Same pointer can be different edit if editing took place
 822                                         if(pixmap->edit_id == edit->id &&
 823                                                 pixmap->pane_number == pane->number)
 824                                         {
 825                                                 pixmap->visible = 1;
 826                                                 break;
 827                                         }
 828                                 }
 829                                 if(debug) PRINT_TRACE
 830
 831 // Get new size, offset of pixmap needed
 832                                 get_pixmap_size(edit,
 833                                         edit_x,
 834                                         edit_w,
 835                                         pixmap_x,
 836                                         pixmap_w,
 837                                         pixmap_h);
 838                                 if(debug) PRINT_TRACE
 839
 840 // Draw new data
 841                                 if(pixmap_w && pixmap_h)
 842                                 {
 843 // Create pixmap if it doesn't exist
 844                                         ResourcePixmap* pixmap = create_pixmap(edit, edit_x,
 845                                                 pixmap_x, pixmap_w, pixmap_h);
 846 // Resize it if it's bigger
 847                                         if( pixmap_w > pixmap->pixmap_w ||
 848                                             pixmap_h > pixmap->pixmap_h)
 849                                                 pixmap->resize(pixmap_w, pixmap_h);
 850                                         pixmap->update_settings(edit, edit_x, edit_w,
 851                                                 pixmap_x, pixmap_w, pixmap_h);
 852 // Draw data
 853                                         if( current->show_assets() )
 854                                                 pixmap->draw_data(this,
 855                                                         edit, edit_x, edit_w,
 856                                                         pixmap_x, pixmap_w, pixmap_h,
 857                                                         mode, indexes_only);
 858                                         else {
 859                                                 set_bg_color(BLACK);
 860                                                 clear_box(0,0, pixmap_w,pixmap_h, pixmap);
 861                                         }
 862 // Draw title
 863                                         if( current->show_titles() )
 864                                                 pixmap->draw_title(this,
 865                                                         edit, edit_x, edit_w,
 866                                                         pixmap_x, pixmap_w);
 867 // Resize it if it's smaller
 868                                         if(pixmap_w < pixmap->pixmap_w ||
 869                                                 pixmap_h < pixmap->pixmap_h)
 870                                                 pixmap->resize(pixmap_w, pixmap_h);
 871
 872 // Copy pixmap to background canvas
 873                                         background_pixmap->draw_pixmap(pixmap,
 874                                                 pixmap->pixmap_x,
 875                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
 876                                                 pixmap->pixmap_w,
 877                                                 edit_h);
 878                                 }
 879                                 if(debug) PRINT_TRACE
 880
 881                         }
 882                 }
 883         }
 884
 885
 886 // Delete unused pixmaps
 887         if(debug) PRINT_TRACE
 888         if(!indexes_only)
 889                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 890                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 891                         {
 892 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 893                                 delete gui->resource_pixmaps.values[i];
 894                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 895                         }
 896         if(debug) PRINT_TRACE
 897
 898         if(hourglass_enabled)
 899         {
 900                 stop_hourglass();
 901                 hourglass_enabled = 0;
 902         }
 903         if(debug) PRINT_TRACE
 904
 905 // can't stop thread here, because this is called for every pane
 906 //      if(mode != IGNORE_THREAD && !indexes_only)
 907 //              gui->resource_thread->start_draw();
 908         if(debug) PRINT_TRACE
 909
 910
 911 }
 912
 913 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 914         int64_t edit_x,
 915         int64_t pixmap_x,
 916         int64_t pixmap_w,
 917         int64_t pixmap_h)
 918 {
 919         ResourcePixmap *result = 0;
 920
 921         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 922         {
 923 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 924                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 925                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 926                 {
 927                         result = gui->resource_pixmaps.values[i];
 928                         break;
 929                 }
 930         }
 931
 932         if(!result)
 933         {
 934 //SET_TRACE
 935                 result = new ResourcePixmap(mwindow,
 936                         gui,
 937                         edit,
 938                         pane->number,
 939                         pixmap_w,
 940                         pixmap_h);
 941 //SET_TRACE
 942                 gui->resource_pixmaps.append(result);
 943         }
 944
 945 //      result->resize(pixmap_w, pixmap_h);
 946         return result;
 947 }
 948
 949 void TrackCanvas::get_pixmap_size(Edit *edit,
 950         int64_t edit_x,
 951         int64_t edit_w,
 952         int64_t &pixmap_x,
 953         int64_t &pixmap_w,
 954         int64_t &pixmap_h)
 955 {
 956
 957 // Align x on frame boundaries
 958
 959
 960 //      switch(edit->edits->track->data_type)
 961 //      {
 962 //              case TRACK_AUDIO:
 963
 964                         pixmap_x = edit_x;
 965                         pixmap_w = edit_w;
 966                         if(pixmap_x < 0)
 967                         {
 968                                 pixmap_w -= -edit_x;
 969                                 pixmap_x = 0;
 970                         }
 971
 972                         if(pixmap_x + pixmap_w > get_w())
 973                         {
 974                                 pixmap_w = get_w() - pixmap_x;
 975                         }
 976
 977 //                      break;
 978 //
 979 //              case TRACK_VIDEO:
 980 //              {
 981 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 982 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 983 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 984 //                      int64_t pixmap_x1 = edit_x;
 985 //                      int64_t pixmap_x2 = edit_x + edit_w;
 986 //
 987 //                      if(pixmap_x1 < 0)
 988 //                      {
 989 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
 990 //                                      pixel_increment +
 991 //                                      edit_x;
 992 //                      }
 993 //
 994 //                      if(pixmap_x2 > get_w())
 995 //                      {
 996 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
 997 //                                      pixel_increment +
 998 //                                      edit_x;
 999 //                      }
1000 //                      pixmap_x = pixmap_x1;
1001 //                      pixmap_w = pixmap_x2 - pixmap_x1;
1002 //                      break;
1003 //              }
1004 //      }
1005
1006         pixmap_h = mwindow->edl->local_session->zoom_track;
1007         Track *track = edit->edits->track;
1008         if( track->show_titles() )
1009                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
1010 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
1011 }
1012
1013 void TrackCanvas::edit_dimensions(Edit *edit,
1014         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1015 {
1016         x = Units::round(edit->track->from_units(edit->startproject) *
1017                         mwindow->edl->session->sample_rate /
1018                         mwindow->edl->local_session->zoom_sample -
1019                         mwindow->edl->local_session->view_start[pane->number]);
1020
1021         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1022
1023 // Method for calculating w so when edits are together we never get off by one error due to rounding
1024         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
1025                         mwindow->edl->session->sample_rate /
1026                         mwindow->edl->local_session->zoom_sample -
1027                         mwindow->edl->local_session->view_start[pane->number]);
1028         w = x_next - x;
1029
1030         int edit_h = 0;
1031         if( edit->track->show_titles() )
1032                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
1033         if( edit->track->show_assets() )
1034                 edit_h += resource_h();
1035         h = edit_h;
1036 }
1037
1038 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1039 {
1040         x = 0;
1041         w = get_w();
1042         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1043         h = track->vertical_span(mwindow->theme);
1044 }
1045
1046
1047 void TrackCanvas::draw_paste_destination()
1048 {
1049         //int cursor_x = get_relative_cursor_x();
1050         //int cursor_y = get_relative_cursor_y();
1051         int current_atrack = 0;
1052         int current_vtrack = 0;
1053         int current_aedit = 0;
1054         int current_vedit = 0;
1055         int64_t w = 0;
1056         int64_t x;
1057         double position;
1058         int insertion  = 0;
1059
1060 //if(pane->number == BOTTOM_RIGHT_PANE)
1061 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1062
1063         if((mwindow->session->current_operation == DRAG_ASSET &&
1064                         (mwindow->session->drag_assets->total ||
1065                         mwindow->session->drag_clips->total)) ||
1066                 (mwindow->session->current_operation == DRAG_EDIT &&
1067                         mwindow->session->drag_edits->total)) {
1068                 Indexable *indexable = 0;
1069                 EDL *clip = 0;
1070                 //int draw_box = 0;
1071
1072                 if(mwindow->session->current_operation == DRAG_ASSET &&
1073                         mwindow->session->drag_assets->size())
1074                         indexable = mwindow->session->drag_assets->get(0);
1075
1076                 if(mwindow->session->current_operation == DRAG_ASSET &&
1077                         mwindow->session->drag_clips->size())
1078                         clip = mwindow->session->drag_clips->get(0);
1079
1080                 int has_audio = 0, has_video = 0;
1081                 double paste_audio_length = 0, paste_video_length = 0;
1082                 double paste_audio_position = -1, paste_video_position = -1;
1083
1084                 if( indexable ) {
1085                         has_audio = indexable->have_audio();
1086                         paste_audio_length = !has_audio ? 0 :
1087                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1088                         has_video = indexable->have_video();
1089                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1090                         // Images have length -1
1091                         if( asset && asset->video_data && asset->video_length < 0 ) {
1092                                 paste_video_length = mwindow->edl->session->si_useduration ?
1093                                         mwindow->edl->session->si_duration / asset->frame_rate :
1094                                         1.0 / asset->frame_rate ;  // 1 frame
1095                         }
1096                         else
1097                                 paste_video_length = !has_video ? 0 :
1098                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1099                 }
1100
1101                 if( clip ) {
1102                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1103                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1104                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1105                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1106                 }
1107
1108 // 'Align cursor on frame' lengths calculations
1109                 if( mwindow->edl->session->cursor_on_frames ) {
1110                         double fps = mwindow->edl->session->frame_rate;
1111                         double aud = floor(paste_audio_length * fps) / fps;
1112                         double vid = floor(paste_video_length * fps) / fps;
1113                         double length = has_video && has_audio ?
1114                                         aud < vid ? aud : vid :
1115                                 has_video ? vid :
1116                                 has_audio ? aud : 0;
1117                         paste_video_length = paste_audio_length = length;
1118                 }
1119
1120                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1121                         int64_t length = 0;
1122                         switch( mwindow->session->track_highlighted->data_type ) {
1123                         case TRACK_VIDEO: length = paste_video_length;  break;
1124                         case TRACK_AUDIO: length = paste_audio_length;  break;
1125                         }
1126                         int64_t asset_length = mwindow->session->track_highlighted->
1127                                 to_units(length, 1);
1128                         paste_audio_position = mwindow->session->track_highlighted->
1129                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1130                 }
1131                 if( has_video ) {
1132                         int64_t asset_length = mwindow->session->track_highlighted->
1133                                 to_units(paste_video_length, 1);
1134                         paste_video_position = mwindow->session->track_highlighted->
1135                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1136                 }
1137
1138 // Get destination track
1139                 for(Track *dest = mwindow->session->track_highlighted;
1140                         dest;
1141                         dest = dest->next) {
1142                         if(dest->record) {
1143 // Get source width in pixels
1144                                 w = -1;
1145 // Use start of highlighted edit
1146                                 if(mwindow->session->edit_highlighted) {
1147                                         position = mwindow->session->track_highlighted->from_units(
1148                                                 mwindow->session->edit_highlighted->startproject);
1149                                 }
1150                                 else {
1151 // Use end of highlighted track, disregarding effects
1152                                         position = mwindow->session->track_highlighted->from_units(
1153                                                 mwindow->session->track_highlighted->edits->length());
1154                                 }
1155
1156 // Get the x coordinate
1157                                 x = Units::to_int64(position *
1158                                         mwindow->edl->session->sample_rate /
1159                                         mwindow->edl->local_session->zoom_sample) -
1160                                         mwindow->edl->local_session->view_start[pane->number];
1161
1162                                 double paste_position = -1.;
1163                                 if(dest->data_type == TRACK_AUDIO) {
1164                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1165 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1166                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1167                                                         indexable->get_sample_rate() *
1168                                                         mwindow->edl->session->sample_rate /
1169                                                         mwindow->edl->local_session->zoom_sample);
1170                                                 paste_position = paste_audio_position;
1171                                         }
1172                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1173                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1174                                                         mwindow->edl->session->sample_rate /
1175                                                         mwindow->edl->local_session->zoom_sample);
1176                                                 paste_position = paste_audio_position;
1177 //printf("draw_paste_destination %d\n", x);
1178                                         }
1179                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1180                                                 current_aedit < mwindow->session->drag_edits->total) {
1181                                                 Edit *edit;
1182                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1183                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1184                                                         current_aedit++;
1185
1186                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1187                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1188                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1189                                                         paste_position = mwindow->session->track_highlighted->
1190                                                                 from_units(drop_edit_position(&insertion,
1191                                                                         mwindow->session->drag_edit,
1192                                                                         mwindow->session->drag_edit->length));
1193                                                         current_aedit++;
1194                                                 }
1195                                         }
1196                                         if( paste_position >= 0 ) {
1197                                                 position = paste_position;
1198                                                 current_atrack++;
1199                                                 //draw_box = 1;
1200                                         }
1201                                         else
1202                                                 w = -1;
1203                                 }
1204                                 else if(dest->data_type == TRACK_VIDEO) {
1205 //printf("draw_paste_destination 1\n");
1206                                         if(indexable && current_vtrack < indexable->get_video_layers())
1207                                         {
1208                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1209                                                         indexable->get_frame_rate() *
1210                                                         mwindow->edl->session->sample_rate /
1211                                                         mwindow->edl->local_session->zoom_sample);
1212                                                 paste_position = paste_video_position;
1213                                         }
1214                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1215                                                 w = Units::to_int64(clip->tracks->total_length() *
1216                                                         mwindow->edl->session->sample_rate /
1217                                                         mwindow->edl->local_session->zoom_sample);
1218                                                 paste_position = paste_video_position;
1219                                         }
1220                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1221                                                 current_vedit < mwindow->session->drag_edits->total) {
1222                                                 Edit *edit;
1223                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1224                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1225                                                         current_vedit++;
1226
1227                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1228                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1229                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1230                                                                 mwindow->edl->session->sample_rate /
1231                                                                 mwindow->edl->local_session->zoom_sample);
1232                                                         paste_position = mwindow->session->track_highlighted->
1233                                                                 from_units(drop_edit_position(&insertion,
1234                                                                         mwindow->session->drag_edit,
1235                                                                         mwindow->session->drag_edit->length));
1236                                                         current_vedit++;
1237                                                 }
1238                                         }
1239                                         if( paste_position >= 0 ) {
1240                                                 position = paste_position;
1241                                                 current_vtrack++;
1242                                                 //draw_box = 1;
1243                                         }
1244                                         else
1245                                                 w = -1;
1246                                 }
1247
1248                                 if(w >= 0) {
1249 // Get the x coordinate
1250                                         x = Units::to_int64(position *
1251                                                 mwindow->edl->session->sample_rate /
1252                                                 mwindow->edl->local_session->zoom_sample) -
1253                                                 mwindow->edl->local_session->view_start[pane->number];
1254                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1255                                         int h = dest->vertical_span(mwindow->theme);
1256
1257 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1258                                         if(x < -BC_INFINITY) {
1259                                                 w -= -BC_INFINITY - x;
1260                                                 x += -BC_INFINITY - x;
1261                                         }
1262                                         w = MIN(65535, w);
1263 // if(pane->number == TOP_RIGHT_PANE)
1264 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1265 // __LINE__, x, y, w, h);
1266                                         if (insertion)
1267                                                 draw_highlight_insertion(x, y, w, h);
1268                                         else
1269                                                 draw_highlight_rectangle(x, y, w, h);
1270                                 }
1271                         }
1272                 }
1273         }
1274 }
1275
1276 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1277 {
1278         x = Units::round(plugin->track->from_units(plugin->startproject) *
1279                 mwindow->edl->session->sample_rate /
1280                 mwindow->edl->local_session->zoom_sample -
1281                 mwindow->edl->local_session->view_start[pane->number]);
1282         w = Units::round(plugin->track->from_units(plugin->length) *
1283                 mwindow->edl->session->sample_rate /
1284                 mwindow->edl->local_session->zoom_sample);
1285         y = plugin->track->y_pixel
1286                 - mwindow->edl->local_session->track_start[pane->number];
1287         if( plugin->track->show_titles() )
1288                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1289         if( plugin->track->show_assets() )
1290                 y += resource_h();
1291         y += plugin->plugin_set->get_number() *
1292                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1293         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1294 }
1295
1296 int TrackCanvas::resource_h()
1297 {
1298         return mwindow->edl->local_session->zoom_track;
1299 }
1300
1301 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1302 {
1303
1304 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1305 // just draw arrows, so user has indication that something is there
1306 // FIXME: get better colors
1307
1308         if (x + w <= 0)
1309         {
1310                 draw_triangle_left(0, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1311                 return;
1312         } else
1313         if (x >= get_w())
1314         {
1315                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1316                 return;
1317         }
1318
1319 // Fix bug in heroines & cvs version as of 22.8.2005:
1320 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1321         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1322         if(x < -10)
1323         {
1324                 w += x - -10;
1325                 x = -10;
1326         }
1327
1328         if(y < -10)
1329         {
1330                 h += y - -10;
1331                 y = -10;
1332         }
1333
1334         w = MIN(w, get_w() + 20);
1335         h = MIN(h, get_h() + 20);
1336         if(w > 0 && h > 0)
1337         {
1338                 set_color(mwindow->preferences->highlight_inverse);
1339                 set_inverse();
1340                 //draw_rectangle(x, y, w, h);
1341                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1342                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1343                 set_opaque();
1344                 draw_rectangle(x, y, w, h);
1345         }
1346 //if(pane->number == TOP_RIGHT_PANE)
1347 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1348 }
1349
1350 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1351 {
1352
1353 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1354 // just draw arrows, so user has indication that something is there
1355 // FIXME: get better colors
1356
1357
1358
1359         int h1 = h / 8;
1360         int h2 = h / 4;
1361
1362         set_inverse();
1363
1364 /* these don't look so good
1365
1366         draw_line(x, y, x, y+h);
1367         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1368         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1369         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1370         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1371 */
1372         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1373         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1374
1375 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1376         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1377         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1378         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1379 */
1380         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1381         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1382
1383 // draw the box centred around x
1384         x -= w / 2;
1385 // Fix bug in heroines & cvs version as of 22.8.2005:
1386 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1387         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1388         if(x < -10)
1389         {
1390                 w += x - -10;
1391                 x = -10;
1392         }
1393         if(y < -10)
1394         {
1395                 h += y - -10;
1396                 y = -10;
1397         }
1398         w = MIN(w, get_w() + 20);
1399         h = MIN(h, get_h() + 20);
1400         set_color(mwindow->preferences->highlight_inverse);
1401         set_inverse();
1402         draw_rectangle(x, y, w, h);
1403         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1404         set_opaque();
1405 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1406 }
1407
1408 void TrackCanvas::draw_playback_cursor()
1409 {
1410 // Called before playback_cursor exists
1411 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1412 //      {
1413 //              mwindow->playback_cursor->visible = 0;
1414 //              mwindow->playback_cursor->draw();
1415 //      }
1416 }
1417
1418 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1419 {
1420         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1421         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1422
1423         edit_dimensions(edit, x, y, w, h);
1424
1425         if( edit->track->show_titles() )
1426                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1427
1428         if(side == EDIT_OUT)
1429                 x += w - handle_w;
1430
1431         h = handle_h;
1432         w = handle_w;
1433 }
1434
1435 void TrackCanvas::get_transition_coords(Edit *edit,
1436                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1437 {
1438         int transition_w = 30, transition_h = 30;
1439         int has_titles = edit->track->show_titles();
1440         int has_assets = edit->track->show_assets();
1441         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1442         double asset_h = resource_h();
1443         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
1444         double dy = has_titles ?
1445                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2 ) :
1446                 ( has_assets ? asset_h/2 : 0) ;
1447         double title_h = mwindow->theme->title_h;
1448         if( dy < title_h / 2 ) { ys = title_h;  dy = ys / 2; }
1449         y += dy;
1450
1451         x -= transition_w / 2;
1452         y -= transition_h / 2;
1453         w = transition_w;
1454         h = transition_h;
1455 }
1456
1457 void TrackCanvas::draw_highlighting()
1458 {
1459         int64_t x, y, w, h;
1460         int draw_box = 0;
1461
1462         switch(mwindow->session->current_operation)
1463         {
1464                 case DRAG_ATRANSITION:
1465                 case DRAG_VTRANSITION:
1466 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1467 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1468                         if(mwindow->session->edit_highlighted) {
1469                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1470                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1471                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1472                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1473                                         edit_dimensions(mwindow->session->edit_highlighted,
1474                                                 x, y, w, h);
1475                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1476                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1477                                                 draw_box = 1;
1478                                                 get_transition_coords(mwindow->session->edit_highlighted,
1479                                                         x, y, w, h);
1480                                         }
1481                                 }
1482                         }
1483                         break;
1484
1485 // Dragging a new effect from the Resource window
1486                 case DRAG_AEFFECT:
1487                 case DRAG_VEFFECT:
1488                         if(mwindow->session->track_highlighted &&
1489                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1490                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1491                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1492                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1493 // Put it before another plugin
1494                                 if(mwindow->session->plugin_highlighted) {
1495                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1496                                                 x, y, w, h);
1497 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1498                                 }
1499 // Put it after a plugin set
1500                                 else if( mwindow->session->pluginset_highlighted &&
1501                                          mwindow->session->pluginset_highlighted->last ) {
1502                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1503                                                 x, y, w, h);
1504 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1505                                         int64_t track_x, track_y, track_w, track_h;
1506                                         track_dimensions(mwindow->session->track_highlighted,
1507                                                 track_x, track_y, track_w, track_h);
1508
1509                                         x += w;
1510                                         w = Units::round(
1511                                                         mwindow->session->track_highlighted->get_length() *
1512                                                         mwindow->edl->session->sample_rate /
1513                                                         mwindow->edl->local_session->zoom_sample -
1514                                                         mwindow->edl->local_session->view_start[pane->number]) -
1515                                                 x;
1516 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1517                                         if(w <= 0) w = track_w;
1518                                 }
1519                                 else {
1520                                         track_dimensions(mwindow->session->track_highlighted,
1521                                                 x, y, w, h);
1522
1523 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1524 // Put it in a new plugin set determined by the selected range
1525                                         if(mwindow->edl->local_session->get_selectionend() >
1526                                                 mwindow->edl->local_session->get_selectionstart()) {
1527                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1528                                                         mwindow->edl->session->sample_rate /
1529                                                         mwindow->edl->local_session->zoom_sample -
1530                                                         mwindow->edl->local_session->view_start[pane->number]);
1531                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1532                                                         mwindow->edl->local_session->get_selectionstart()) *
1533                                                         mwindow->edl->session->sample_rate /
1534                                                         mwindow->edl->local_session->zoom_sample);
1535                                         }
1536 // Put it in a new plugin set determined by an edit boundary
1537                                         else if(mwindow->session->edit_highlighted) {
1538                                                 int64_t temp_y, temp_h;
1539                                                 edit_dimensions(mwindow->session->edit_highlighted,
1540                                                         x, temp_y, w, temp_h);
1541                                         }
1542 // Put it at the beginning of the track in a new plugin set
1543                                 }
1544
1545                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1546                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1547 //printf("TrackCanvas::draw_highlighting 1\n");
1548                                         draw_box = 1;
1549                                 }
1550                         }
1551                         break;
1552
1553                 case DRAG_ASSET:
1554                         if(mwindow->session->track_highlighted) {
1555 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1556
1557 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1558 //                              {
1559                                         draw_paste_destination();
1560 //                              }
1561                         }
1562                         break;
1563
1564                 case DRAG_EDIT:
1565                         if(mwindow->session->track_highlighted) {
1566 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1567 //
1568 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1569                                         draw_paste_destination();
1570 //                              }
1571                         }
1572                         break;
1573                 case DRAG_GROUP:
1574                         if( mwindow->session->track_highlighted && mwindow->session->drag_group &&
1575                             mwindow->session->drag_group_edit && mwindow->session->drag_group_first_track ) {
1576                                 Track *track = mwindow->session->track_highlighted;
1577                                 EDL *drag_group = mwindow->session->drag_group;
1578                                 Track *edit_track = mwindow->session->drag_group_edit->track;
1579                                 Track *drag_track = mwindow->session->drag_group_first_track;
1580                                 while( track && edit_track && edit_track != drag_track ) {
1581                                         edit_track = edit_track->previous;
1582                                         track = track->previous;
1583                                 }
1584                                 int cx = get_cursor_x();
1585                                 double cur_pos = mwindow->session->drag_group_position;
1586                                 double new_pos = mwindow->edl->get_cursor_position(cx, pane->number);
1587                                 new_pos -= mwindow->session->drag_position - cur_pos;
1588                                 new_pos = mwindow->edl->align_to_frame(new_pos, 0);
1589                                 double drop_position = new_pos;
1590                                 int color = GREEN;
1591                                 int ret = test_track_group(drag_group, track, new_pos);
1592                                 if( ret < 0 )
1593                                         color = ORANGE;
1594                                 else if( !ret ) {
1595                                         if( new_pos != drop_position ) {
1596                                                 double pos = new_pos;
1597                                                 pos += mwindow->session->drag_position - cur_pos;
1598                                                 cx = mwindow->edl->get_position_cursorx(pos, pane->number);
1599                                                 ret = test_track_group(drag_group, track, new_pos);
1600                                         }
1601                                         color = ret > 0 ? YELLOW : shift_down() ? RED : BLUE;
1602                                 }
1603                                 track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1604                                 int dx = cx - mwindow->session->drag_origin_x;
1605                                 int dy = y - mwindow->session->drag_origin_y;
1606                                 draw_selected_edits(mwindow->edl, dx, dy, color, -1);
1607                         }
1608                         break;
1609 // Dragging an effect from the timeline
1610                 case DRAG_AEFFECT_COPY:
1611                 case DRAG_VEFFECT_COPY:
1612                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1613                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1614                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1615                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1616                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1617
1618                                 int64_t plugin_position = -1;
1619                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1620                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1621                                 Track *hi_track = mwindow->session->track_highlighted;
1622                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1623 // Put it into a silence zone
1624                                 if( hi_plugin_set && hi_plugin_set->last &&
1625                                     hi_plugin_set->track == drag_plugin->track ) {
1626                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1627                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1628                                         hi_track = drag_plugin->track;
1629                                 }
1630                                 else if( hi_track ) {
1631 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1632                                         track_dimensions(hi_track, x, y, w, h);
1633                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1634                                 }
1635
1636                                 if( plugin_position < 0 ) break;
1637
1638 // Calculate length of plugin based on data type of track and units
1639                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1640                                                 mwindow->edl->local_session->zoom_sample;
1641                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1642                                                 mwindow->edl->local_session->view_start[pane->number];
1643                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1644
1645                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1646                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1647                                         draw_box = 1;
1648                                 }
1649                         }
1650                         break;
1651
1652                 case DRAG_PLUGINKEY:
1653                         if(mwindow->session->plugin_highlighted &&
1654                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1655                         {
1656 // Just highlight the plugin
1657                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1658
1659                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1660                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1661                                 {
1662                                         draw_box = 1;
1663                                 }
1664                         }
1665                         break;
1666
1667         }
1668
1669         if( draw_box )
1670                 draw_highlight_rectangle(x, y, w, h);
1671
1672         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1673 }
1674
1675 // x does not reliably draw a really big rectangle
1676 void TrackCanvas::draw_selected(int x, int y, int w, int h)
1677 {
1678         int x1 = bmax(x, 0), x2 = bmin(x+w, get_w());
1679         if( x1 > x2 ) return;
1680         int y1 = bmax(y, 0), y2 = bmin(y+h, get_h());
1681         if( y1 > y2 ) return;
1682         if( x   >= 0 && x   < get_w() ) draw_line(x,y1,   x,y2);
1683         if( x+w >= 0 && x+w < get_w() ) draw_line(x+w,y1, x+w,y2);
1684         if( y   >= 0 && y   < get_h() ) draw_line(x1,y,   x2,y);
1685         if( y+h >= 0 && y+h < get_h() ) draw_line(x1,y+h, x2,y+h);
1686 }
1687
1688 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1689 {
1690         for( Track *track=edl->tracks->first; track; track=track->next ) {
1691                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1692                         if( !edit->is_selected ) continue;
1693                         int64_t x, y, w, h;
1694                         edit_dimensions(edit, x, y, w, h);
1695                         x += dx;  y += dy;
1696                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1697                         if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1698                         set_opaque();
1699                         int inner = color1 < 0 ? color0 : !edit->group_id ? color0 :
1700                                 mwindow->get_group_color(edit->group_id);
1701                         set_color(inner);
1702                         draw_selected(x, y, w, h);
1703                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1704                         set_color(outer);
1705                         draw_selected(x-1, y-1, w+2, h+2);
1706                         draw_selected(x-2, y-2, w+1, h+1);
1707                 }
1708         }
1709 }
1710
1711 void TrackCanvas::draw_plugins()
1712 {
1713         char string[BCTEXTLEN];
1714         int current_on = 0;
1715         int current_show = 0;
1716         int current_preset = 0;
1717
1718         for(int i = 0; i < plugin_on_toggles.total; i++)
1719                 plugin_on_toggles.values[i]->in_use = 0;
1720         for(int i = 0; i < plugin_show_toggles.total; i++)
1721                 plugin_show_toggles.values[i]->in_use = 0;
1722         for(int i = 0; i < preset_edit_buttons.total; i++)
1723                 plugin_show_toggles.values[i]->in_use = 0;
1724
1725
1726         for(Track *track = mwindow->edl->tracks->first;
1727                 track;
1728                 track = track->next)
1729         {
1730                 if(track->expand_view)
1731                 {
1732                         for(int i = 0; i < track->plugin_set.total; i++)
1733                         {
1734                                 PluginSet *pluginset = track->plugin_set.values[i];
1735
1736                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1737                                 {
1738                                         int64_t total_x, y, total_w, h;
1739                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1740
1741                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1742                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1743                                                 plugin->plugin_type != PLUGIN_NONE)
1744                                         {
1745                                                 int x = total_x, w = total_w, left_margin = 5;
1746                                                 int right_margin = 5;
1747                                                 if(x < 0)
1748                                                 {
1749                                                         w -= -x;
1750                                                         x = 0;
1751                                                 }
1752                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1753
1754                                                 draw_3segmenth(x,
1755                                                         y,
1756                                                         w,
1757                                                         total_x,
1758                                                         total_w,
1759                                                         mwindow->theme->get_image("plugin_bg_data"),
1760                                                         0);
1761                                                 set_color(mwindow->theme->title_color);
1762                                                 set_font(mwindow->theme->title_font);
1763                                                 plugin->calculate_title(string, 0);
1764
1765 // Truncate string to int64_test visible in background
1766                                                 int len = strlen(string), j;
1767                                                 for(j = len; j >= 0; j--)
1768                                                 {
1769                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1770                                                         {
1771                                                                 string[j] = 0;
1772                                                         }
1773                                                         else
1774                                                                 break;
1775                                                 }
1776
1777 // Justify the text on the left boundary of the edit if it is visible.
1778 // Otherwise justify it on the left side of the screen.
1779                                                 int64_t text_x = total_x + left_margin;
1780                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1781                                                 text_x = MAX(left_margin, text_x);
1782                                                 draw_text(text_x,
1783                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1784                                                         string,
1785                                                         strlen(string),
1786                                                         0);
1787                                                 int64_t min_x = total_x + text_w;
1788
1789
1790 // Update plugin toggles
1791                                                 int toggle_x = total_x + total_w;
1792                                                 int toggle_y = y;
1793                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1794
1795 // On toggle
1796                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1797                                                 if(toggle_x > min_x)
1798                                                 {
1799                                                         if(current_on >= plugin_on_toggles.total)
1800                                                         {
1801                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1802                                                                 add_subwindow(plugin_on);
1803                                                                 plugin_on_toggles.append(plugin_on);
1804                                                         }
1805                                                         else
1806                                                         {
1807                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1808                                                         }
1809                                                         current_on++;
1810                                                 }
1811
1812 // Toggles for standalone plugins only
1813                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1814                                                 {
1815 // Show
1816                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1817                                                         if(toggle_x > min_x)
1818                                                         {
1819                                                                 if(current_show >= plugin_show_toggles.total)
1820                                                                 {
1821                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1822                                                                         add_subwindow(plugin_show);
1823                                                                         plugin_show_toggles.append(plugin_show);
1824                                                                 }
1825                                                                 else
1826                                                                 {
1827                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1828                                                                 }
1829                                                                 current_show++;
1830                                                         }
1831                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + 10;
1832                                                         if(toggle_x > min_x)
1833                                                         {
1834                                                                 if(current_preset >= preset_edit_buttons.total)
1835                                                                 {
1836                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1837                                                                         add_subwindow(preset_edit);
1838                                                                         preset_edit_buttons.append(preset_edit);
1839                                                                 }
1840                                                                 else
1841                                                                 {
1842                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1843                                                                 }
1844                                                                 current_preset++;
1845                                                         }
1846                                                 }
1847                                         }
1848                                 }
1849                         }
1850                 }
1851         }
1852
1853 // Remove unused toggles
1854
1855         while(current_preset < preset_edit_buttons.total)
1856         {
1857                 preset_edit_buttons.remove_object_number(current_preset);
1858         }
1859         while(current_show < plugin_show_toggles.total)
1860         {
1861                 plugin_show_toggles.remove_object_number(current_show);
1862         }
1863
1864         while(current_on < plugin_on_toggles.total)
1865         {
1866                 plugin_on_toggles.remove_object_number(current_on);
1867         }
1868 }
1869
1870 void TrackCanvas::refresh_plugintoggles()
1871 {
1872         for(int i = 0; i < plugin_on_toggles.total; i++)
1873         {
1874                 PluginOn *on = plugin_on_toggles.values[i];
1875                 on->reposition_window(on->get_x(), on->get_y());
1876         }
1877         for(int i = 0; i < plugin_show_toggles.total; i++)
1878         {
1879                 PluginShow *show = plugin_show_toggles.values[i];
1880                 show->reposition_window(show->get_x(), show->get_y());
1881         }
1882         for(int i = 0; i < preset_edit_buttons.total; i++)
1883         {
1884                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1885                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1886         }
1887 }
1888
1889 void TrackCanvas::draw_hard_edges()
1890 {
1891         int64_t x, y, w, h;
1892
1893         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1894                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1895                         if( !edit->hard_left && !edit->hard_right ) continue;
1896                         edit_dimensions(edit, x, y, w, h);
1897                         set_color(GREEN);
1898                         set_opaque();
1899                         int y1 = y;
1900                         if( track->show_titles() )
1901                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1902                         if( track->show_assets() )
1903                                 y1 += resource_h();
1904                         if( y1 == y )
1905                                 y1 += mwindow->theme->title_h;
1906                         if( edit->hard_left ) {
1907                                 ArrayList<int> xpt, ypt;
1908                                 xpt.append(x);              ypt.append(y1);
1909                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1910                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1911                                 fill_polygon(&xpt, &ypt);
1912                         }
1913                         if( edit->hard_right ) {
1914                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1915                                 xpt.append(x1);            ypt.append(y1);
1916                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1917                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1918                                 fill_polygon(&xpt, &ypt);
1919                         }
1920                 }
1921         }
1922 }
1923
1924 void TrackCanvas::draw_inout_points()
1925 {
1926 }
1927
1928
1929 void TrackCanvas::draw_drag_handle()
1930 {
1931         if(mwindow->session->current_operation == DRAG_EDITHANDLE2 ||
1932                 mwindow->session->current_operation == DRAG_PLUGINHANDLE2)
1933         {
1934 //printf("TrackCanvas::draw_drag_handle 1 %ld %ld\n", mwindow->session->drag_sample, mwindow->edl->local_session->view_start);
1935                 int64_t pixel1 = Units::round(mwindow->session->drag_position *
1936                         mwindow->edl->session->sample_rate /
1937                         mwindow->edl->local_session->zoom_sample -
1938                         mwindow->edl->local_session->view_start[pane->number]);
1939 //printf("TrackCanvas::draw_drag_handle 2 %d %jd\n", pane->number, pixel1);
1940                 set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1941                 set_inverse();
1942 //printf("TrackCanvas::draw_drag_handle 3\n");
1943                 draw_line(pixel1, 0, pixel1, get_h());
1944                 set_opaque();
1945 //printf("TrackCanvas::draw_drag_handle 4\n");
1946         }
1947 }
1948
1949
1950 void TrackCanvas::draw_transitions()
1951 {
1952         int64_t x, y, w, h;
1953
1954         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1955                 if( !track->show_transitions() ) continue;
1956
1957                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1958                         if(!edit->transition) continue;
1959                         edit_dimensions(edit, x, y, w, h);
1960                         int strip_x = x, edit_y = y;
1961                         get_transition_coords(edit, x, y, w, h);
1962                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
1963                         if( track->show_assets() && track->show_titles() )
1964                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
1965                         if( strip_y < edit_y ) strip_y = edit_y;
1966
1967                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
1968                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
1969                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1970                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1971                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
1972                                                 track->data_type);
1973                                 if( !server ) continue;
1974                                 VFrame *picon = server->get_picon();
1975                                 if( !picon ) continue;
1976                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
1977                                 int track_h = edit->track->vertical_span(mwindow->theme);
1978                                 if( picon_h > track_h ) picon_h = track_h;
1979                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
1980                         }
1981                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
1982                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
1983                                 int x = strip_x, w = strip_w;
1984                                 if( x < 0 ) {  w -= -x;  x = 0; }
1985                                 if( w + x > get_w() ) w -= (w + x) - get_w();
1986
1987                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
1988                                         mwindow->theme->get_image("plugin_bg_data"), 0);
1989                         }
1990                 }
1991         }
1992 }
1993
1994 void TrackCanvas::draw_loop_points()
1995 {
1996 //printf("TrackCanvas::draw_loop_points 1\n");
1997         if(mwindow->edl->local_session->loop_playback)
1998         {
1999 //printf("TrackCanvas::draw_loop_points 2\n");
2000                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2001                         mwindow->edl->session->sample_rate /
2002                         mwindow->edl->local_session->zoom_sample -
2003                         mwindow->edl->local_session->view_start[pane->number]);
2004 //printf("TrackCanvas::draw_loop_points 3\n");
2005
2006                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2007                 {
2008                         set_color(GREEN);
2009                         draw_line(x, 0, x, get_h());
2010                 }
2011 //printf("TrackCanvas::draw_loop_points 4\n");
2012
2013                 x = Units::round(mwindow->edl->local_session->loop_end *
2014                         mwindow->edl->session->sample_rate /
2015                         mwindow->edl->local_session->zoom_sample -
2016                         mwindow->edl->local_session->view_start[pane->number]);
2017 //printf("TrackCanvas::draw_loop_points 5\n");
2018
2019                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2020                 {
2021                         set_color(GREEN);
2022                         draw_line(x, 0, x, get_h());
2023                 }
2024 //printf("TrackCanvas::draw_loop_points 6\n");
2025         }
2026 //printf("TrackCanvas::draw_loop_points 7\n");
2027 }
2028
2029 void TrackCanvas::draw_brender_range()
2030 {
2031         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2032         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2033         if( mwindow->edl->session->brender_end > 0 )
2034         {
2035                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2036                         mwindow->edl->session->sample_rate /
2037                         mwindow->edl->local_session->zoom_sample -
2038                         mwindow->edl->local_session->view_start[pane->number]);
2039                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2040                 {
2041                         set_color(RED);
2042                         draw_line(x1, 0, x1, get_h());
2043                 }
2044                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2045                         mwindow->edl->session->sample_rate /
2046                         mwindow->edl->local_session->zoom_sample -
2047                         mwindow->edl->local_session->view_start[pane->number]);
2048
2049                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2050                 {
2051                         set_color(RED);
2052                         draw_line(x2, 0, x2, get_h());
2053                 }
2054         }
2055 }
2056
2057 // The operations which correspond to each automation type
2058 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2059 {
2060         DRAG_MUTE,
2061         DRAG_CAMERA_X,
2062         DRAG_CAMERA_Y,
2063         DRAG_CAMERA_Z,
2064         DRAG_PROJECTOR_X,
2065         DRAG_PROJECTOR_Y,
2066         DRAG_PROJECTOR_Z,
2067         DRAG_FADE,
2068         DRAG_PAN,
2069         DRAG_MODE,
2070         DRAG_MASK,
2071         DRAG_SPEED
2072 };
2073
2074 // The buttonpress operations, so nothing changes unless the mouse moves
2075 // a certain amount.  This allows the keyframe to be used to position the
2076 // insertion point without moving itself.
2077 static int pre_auto_operations[AUTOMATION_TOTAL] =
2078 {
2079         DRAG_MUTE,
2080         DRAG_CAMERA_X,
2081         DRAG_CAMERA_Y,
2082         DRAG_CAMERA_Z,
2083         DRAG_PROJECTOR_X,
2084         DRAG_PROJECTOR_Y,
2085         DRAG_PROJECTOR_Z,
2086         DRAG_FADE,
2087         DRAG_PAN_PRE,
2088         DRAG_MODE_PRE,
2089         DRAG_MASK_PRE,
2090         DRAG_SPEED
2091 };
2092
2093
2094 int TrackCanvas::do_keyframes(int cursor_x,
2095         int cursor_y,
2096         int draw,
2097         int buttonpress,
2098         int &new_cursor,
2099         int &update_cursor,
2100         int &rerender)
2101 {
2102 // Note: button 3 (right mouse button) is not eaten to allow
2103 // track context menu to appear
2104         int result = 0;
2105         EDLSession *session = mwindow->edl->session;
2106
2107
2108
2109         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2110         {
2111                 0, 0, 0, 0, 0, 0, 0, 0,
2112                 pankeyframe_pixmap,
2113                 modekeyframe_pixmap,
2114                 maskkeyframe_pixmap,
2115         };
2116
2117
2118
2119         for(Track *track = mwindow->edl->tracks->first;
2120                 track && !result;
2121                 track = track->next) {
2122                 Auto *auto_keyframe = 0;
2123                 Automation *automation = track->automation;
2124
2125
2126 // Handle keyframes in reverse drawing order if a button press
2127                 int start = 0;
2128                 int end = AUTOMATION_TOTAL;
2129                 int step = 1;
2130                 if(buttonpress)
2131                 {
2132                         start = AUTOMATION_TOTAL - 1;
2133                         end = -1;
2134                         step = -1;
2135                 }
2136                 for(int i = start; i != end && !result; i += step)
2137                 {
2138 // Event not trapped and automation visible
2139                         Autos *autos = automation->autos[i];
2140                         if(!result && session->auto_conf->autos[i] && autos) {
2141                                 switch(i) {
2142                                 case AUTOMATION_MODE:
2143                                 case AUTOMATION_PAN:
2144                                 case AUTOMATION_MASK:
2145                                         result = do_autos(track, automation->autos[i],
2146                                                 cursor_x, cursor_y, draw,
2147                                                 buttonpress, auto_pixmaps[i],
2148                                                 auto_keyframe, rerender);
2149                                                 break;
2150
2151                                 default: {
2152                                         switch(autos->get_type()) {
2153                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2154                                                 Automation automation(0, track);
2155                                                 int grouptype = automation.autogrouptype(i, track);
2156                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2157                                                         mwindow->speed_before();
2158                                                 }
2159
2160                                                 if(draw) // Do dropshadow
2161                                                         result = do_float_autos(track, autos,
2162                                                                 cursor_x, cursor_y, draw,
2163                                                                 buttonpress, 1, 1, MDGREY,
2164                                                                 auto_keyframe, grouptype);
2165                                                 result = do_float_autos(track, autos,
2166                                                         cursor_x, cursor_y, draw, buttonpress,
2167                                                         0, 0, GWindowGUI::auto_colors[i],
2168                                                         auto_keyframe, grouptype);
2169
2170                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2171                                                         mwindow->speed_after(-1);
2172                                                 int current_grouptype = mwindow->edl->local_session->zoombar_showautotype;
2173                                                 if( result && buttonpress && grouptype != current_grouptype ) {
2174                                                         mwindow->edl->local_session->zoombar_showautotype = grouptype;
2175                                                         mwindow->gui->zoombar->update_autozoom();
2176                                                 }
2177                                                 break; }
2178
2179                                         case Autos::AUTOMATION_TYPE_INT: {
2180                                                 if(draw) // Do dropshadow
2181                                                         result = do_int_autos(track, autos,
2182                                                                 cursor_x, cursor_y, draw,
2183                                                                 buttonpress, 1, 1, MDGREY,
2184                                                                 auto_keyframe);
2185                                                 result = do_int_autos(track, autos,
2186                                                         cursor_x, cursor_y, draw, buttonpress,
2187                                                         0, 0, GWindowGUI::auto_colors[i],
2188                                                         auto_keyframe);
2189                                                 break; }
2190                                         }
2191                                         break; }
2192                                 }
2193
2194                                 if(result)
2195                                 {
2196                                         if(mwindow->session->current_operation == auto_operations[i])
2197                                                 rerender = 1;
2198
2199 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2200 // __LINE__,
2201 // mwindow->session->current_operation,
2202 // auto_operations[i]);
2203                                         if(buttonpress)
2204                                         {
2205                                                 if (buttonpress == 2 && auto_keyframe )
2206                                                 {
2207                                                         double position = track->from_units(auto_keyframe->position);
2208                                                         mwindow->edl->local_session->set_selectionstart(position);
2209                                                         mwindow->edl->local_session->set_selectionend(position);
2210                                                 }
2211                                                 if (buttonpress != 3)
2212                                                 {
2213                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2214                                                                 fill_ganged_autos(get_double_click(), 0, track,
2215                                                                         (FloatAuto*)mwindow->session->drag_auto);
2216                                                         mwindow->session->current_operation = pre_auto_operations[i];
2217                                                         update_drag_caption();
2218                                                         rerender = 1;
2219                                                 }
2220                                                 else if( auto_keyframe )
2221                                                 {
2222                                                         gui->keyframe_menu->update(automation,
2223                                                                 autos,
2224                                                                 auto_keyframe);
2225                                                         gui->keyframe_menu->activate_menu();
2226                                                         rerender = 1; // the position changes
2227                                                 }
2228                                                 else if( autos )
2229                                                 {
2230                                                         gui->keyframe_hide->update(autos);
2231                                                         gui->keyframe_hide->activate_menu();
2232                                                         rerender = 1; // the position changes
2233                                                 }
2234                                                 if(buttonpress == 1 && ctrl_down() &&
2235                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2236                                                         rerender = 1; // special case: curve mode changed
2237                                         }
2238                                 }
2239                         }
2240                 }
2241
2242                 if(!result && session->auto_conf->plugins) {
2243                         Plugin *plugin;
2244                         KeyFrame *keyframe;
2245                         result = do_plugin_autos(track, cursor_x, cursor_y,
2246                                 draw, buttonpress, plugin, keyframe);
2247                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2248                                 rerender = 1;
2249                         }
2250                         if(result && (buttonpress == 1)) {
2251                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2252                                 update_drag_caption();
2253                                 rerender = 1;
2254                         }
2255                         else if (result && (buttonpress == 3)) {
2256                                 gui->keyframe_menu->update(plugin, keyframe);
2257                                 gui->keyframe_menu->activate_menu();
2258                                 rerender = 1; // the position changes
2259                         }
2260                 }
2261         }
2262
2263 // Final pass to trap event
2264         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2265                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2266                         mwindow->session->current_operation == auto_operations[i]) {
2267                         result = 1;
2268                         break;
2269                 }
2270         }
2271
2272         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2273                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2274                 result = 1;
2275         }
2276
2277         update_cursor = 1;
2278         if(result) {
2279                 new_cursor = UPRIGHT_ARROW_CURSOR;
2280         }
2281
2282
2283         return result;
2284 }
2285
2286 void TrackCanvas::draw_keyframe_reticle()
2287 {
2288         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2289         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2290
2291         int current_op = mwindow->session->current_operation, dragging = 0;
2292         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2293                 if( current_op == auto_operations[i] ) dragging = 1;
2294         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2295
2296         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2297                 mwindow->session->drag_auto->autos->autoidx : -1;
2298
2299         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2300             keyframe_hairline == HAIRLINE_DRAGGING ) {
2301                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2302                 return;
2303         }
2304
2305         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2306             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2307                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2308                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2309                         Automation *automation = track->automation;
2310                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2311                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2312                                 // automation visible
2313                                 Autos *autos = automation->autos[i];
2314                                 if( !autos ) continue;
2315                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2316                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2317                                      auto_keyframe = auto_keyframe->next ) {
2318                                         draw_hairline(auto_keyframe, BLUE, show);
2319                                 }
2320                         }
2321                 }
2322
2323                 if( dragging )
2324                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2325         }
2326 }
2327
2328 void TrackCanvas::draw_auto(Auto *current,
2329         int x,
2330         int y,
2331         int center_pixel,
2332         int zoom_track)
2333 {
2334         int x1, y1, x2, y2;
2335
2336         x1 = x - HANDLE_W / 2;
2337         x2 = x + HANDLE_W / 2;
2338         y1 = center_pixel + y - HANDLE_W / 2;
2339         y2 = center_pixel + y + HANDLE_W / 2;
2340
2341         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2342         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2343
2344         draw_box(x1, y1, x2 - x1, y2 - y1);
2345 }
2346
2347
2348 // This draws lines for bezier in & out controls
2349 void TrackCanvas::draw_cropped_line(int x1,
2350         int y1,
2351         int x2,
2352         int y2,
2353         int min_y,
2354         int max_y)
2355 {
2356
2357
2358 // Don't care about x since it is clipped by the window.
2359 // Put y coords in ascending order
2360         if(y2 < y1) {
2361                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2362                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2363         }
2364
2365
2366
2367         double slope = (double)(x2 - x1) / (y2 - y1);
2368 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2369         if(y1 < min_y) {
2370                 x1 = (int)(x1 + (min_y - y1) * slope);
2371                 y1 = min_y;
2372         }
2373         else if(y1 >= max_y) {
2374                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2375                 y1 = max_y - 1;
2376         }
2377
2378         if(y2 >= max_y) {
2379                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2380                 y2 = max_y - 1;
2381         }
2382         else if(y2 < min_y) {
2383                 x2 = (int)(x2 + (min_y - y2) * slope);
2384                 y1 = min_y;
2385         }
2386
2387
2388 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2389         if( y1 >= min_y && y1 < max_y &&
2390             y2 >= min_y && y2 < max_y )
2391                 draw_line(x1, y1, x2, y2);
2392 }
2393
2394
2395 void TrackCanvas::draw_floatauto(FloatAuto *current,
2396         int x,
2397         int y,
2398         int in_x,
2399         int in_y,
2400         int out_x,
2401         int out_y,
2402         int center_pixel,
2403         int zoom_track,
2404         int color)
2405 {
2406         int x1 = x - HANDLE_W / 2; // Center
2407         int x2 = x + HANDLE_W / 2;
2408         int y1 = center_pixel + y - HANDLE_H / 2;
2409         int y2 = center_pixel + y + HANDLE_H / 2;
2410         int ymin = center_pixel - zoom_track / 2;
2411         int ymax = center_pixel + zoom_track / 2;
2412         CLAMP(y1, ymin, ymax);
2413         CLAMP(y2, ymin, ymax);
2414
2415         if(y2 - 1 > y1)
2416         {
2417                 set_color(BLACK);
2418                 draw_box(x1 + 1, y1 + 1, x2 - x1, y2 - y1);
2419                 set_color(color);
2420                 draw_box(x1, y1, x2 - x1, y2 - y1);
2421         }
2422
2423 // show bezier control points (only) if this
2424 // floatauto doesn't adjust it's tangents automatically
2425         if(current->curve_mode != FloatAuto::FREE &&
2426            current->curve_mode != FloatAuto::TFREE)
2427                 return;
2428
2429         if(in_x != x)
2430                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2431         if(out_x != x)
2432                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2433 }
2434
2435 inline int quantize(float f) { return (int)floor(f + 0.5); }
2436
2437 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2438         int x, int y, int cp_x, int cp_y, int center_pixel,
2439         int zoom_track, int color)
2440 // draw the tangent and a handle for given bézier ctrl point
2441 {
2442         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2443
2444         float slope = (float)(cp_y - y)/(cp_x - x);
2445         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2446         if(slope != 0)
2447                 cp_x = x + quantize((cp_y - y) / slope);
2448
2449         y    += center_pixel;
2450         cp_y += center_pixel;
2451
2452         // drawing the tangent as a dashed line...
2453         int const dash = HANDLE_W;
2454         int const gap  = HANDLE_W / 2;
2455         float sx = 3 * (cp_x - x) / 4.;
2456         float ex = 0;
2457
2458         // q is the x displacement for a unit line of slope
2459         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2460
2461         float dist = 1/q * sx;
2462         if( dist > dash )
2463                 ex = sx - q * dash;
2464
2465         set_color(color);
2466         do {
2467                 float sy = slope * sx, ey = slope * ex;
2468                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2469                 sx = ex - q * gap;
2470                 ex = sx - q * dash;
2471         } while(q*ex > 0);
2472
2473         if(handle_visible)
2474         {
2475                 int r = HANDLE_W / 2;
2476                 int cp_x1 = cp_x - r;
2477                 int cp_y1 = cp_y - r;
2478                 set_color(BLACK);
2479                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2480                 set_color(color);
2481                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2482         }
2483 }
2484
2485
2486 int TrackCanvas::test_auto(Auto *current,
2487         int x, int y, int center_pixel, int zoom_track,
2488         int cursor_x, int cursor_y, int buttonpress)
2489 {
2490         int x1, y1, x2, y2;
2491         int result = 0;
2492
2493         x1 = x - HANDLE_W / 2;
2494         x2 = x + HANDLE_W / 2;
2495         y1 = center_pixel + y - HANDLE_H / 2;
2496         y2 = center_pixel + y + HANDLE_H / 2;
2497         int ymin = center_pixel - zoom_track / 2;
2498         int ymax = center_pixel + zoom_track / 2;
2499         CLAMP(y1, ymin, ymax);
2500         CLAMP(y2, ymin, ymax);
2501
2502         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2503         {
2504                 if(buttonpress && buttonpress != 3)
2505                 {
2506                         mwindow->session->drag_auto = current;
2507                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2508                         // Toggle Autos don't respond to vertical zoom, they always show up
2509                         // with "on" == 100% == line on top
2510                         mwindow->session->drag_start_position = current->position;
2511                         mwindow->session->drag_origin_x = cursor_x;
2512                         mwindow->session->drag_origin_y = cursor_y;
2513                 }
2514                 result = 1;
2515         }
2516
2517         if(buttonpress && buttonpress != 3 && result)
2518         {
2519 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2520                 mwindow->undo->update_undo_before();
2521         }
2522
2523         return result;
2524 }
2525
2526 // some Helpers for test_floatauto(..)
2527 // and for dragging the tangents/ctrl points
2528 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2529         float cursor_x, float cursor_y)
2530 {
2531 // Control point switched off?
2532         if( x0 == ctrl_x ) return 0.0;
2533         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2534         double x = cursor_x-x0, y = cursor_y-y0;
2535 // wrong side of ctrl handle
2536         if( x*x1 < 0 ) return 0.0;
2537 // outside handle radius
2538         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2539         double xx1 = x1*x1, yy1 = y1*y1;
2540         double xx = x*x, yy = y*y;
2541 // distance squared from cursor to cursor projected to line from ctrl to handle
2542 //   along a line perpendicular to line from ctrl to handle (closest approach)
2543 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2544         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2545         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2546 }
2547
2548
2549 inline
2550 float levered_position(float position, float ref_pos)
2551 {
2552         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2553                 return 0.0;
2554         return ref_pos / position;
2555 }
2556
2557
2558 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2559 // transforms automation value into current display coords,
2560 // dependant on current automation display range for the given kind of automation
2561 {
2562         if(!mwindow || !mwindow->edl) return 0;
2563         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2564         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2565         float automation_range = automation_max - automation_min;
2566         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2567                 return 0;
2568         return (auto_value - automation_min) / automation_range;
2569 }
2570
2571
2572
2573 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2574         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2575         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2576 {
2577         int result = 0;
2578
2579         int x1 = x - HANDLE_W / 2;
2580         int x2 = x + HANDLE_W / 2;
2581         int y1 = center_pixel + y - HANDLE_W / 2;
2582         int y2 = center_pixel + y + HANDLE_W / 2;
2583         int ymin = center_pixel - zoom_track / 2;
2584         int ymax = center_pixel + zoom_track / 2;
2585         CLAMP(y1, ymin, ymax);
2586         CLAMP(y2, ymin, ymax);
2587
2588         int in_x1 = in_x - HANDLE_W / 2;
2589         int in_x2 = in_x + HANDLE_W / 2;
2590         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2591         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2592         CLAMP(in_y1, ymin, ymax);
2593         CLAMP(in_y2, ymin, ymax);
2594
2595         int out_x1 = out_x - HANDLE_W / 2;
2596         int out_x2 = out_x + HANDLE_W / 2;
2597         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2598         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2599         CLAMP(out_y1, ymin, ymax);
2600         CLAMP(out_y2, ymin, ymax);
2601
2602
2603 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2604 // buttonpress could be the start of a drag operation
2605 #define INIT_DRAG(POS,VAL) \
2606                 mwindow->session->drag_auto = current;      \
2607                 mwindow->session->drag_origin_x = cursor_x;  \
2608                 mwindow->session->drag_origin_y = cursor_y;   \
2609                 mwindow->session->drag_start_position = (POS); \
2610                 mwindow->session->drag_start_percentage = (VAL);
2611
2612 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2613
2614
2615 // without modifier we are manipulating the automation node
2616 // with ALT it's about dragging only the value of the node
2617 // with SHIFT the value snaps to the value of neighbouring nodes
2618 // CTRL indicates we are rather manipulating the tangent(s) of the node
2619
2620         if(!ctrl_down())
2621         {
2622                 if( WITHIN(x1,x2,y1,y2))
2623                 {       // cursor hits node
2624                         result = 1;
2625
2626                         if(buttonpress && (buttonpress != 3))
2627                         {
2628                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2629                                 mwindow->session->drag_handle = 0;
2630                 }       }
2631         }
2632         else // ctrl_down()
2633         {
2634                 if( WITHIN(x1,x2,y1,y2))
2635                 {
2636                         result = 1;
2637                         if(buttonpress && (buttonpress != 3))
2638                         {
2639                                 // could be ctrl-click or ctrl-drag
2640                                 // click would cycle through tangent modes
2641                                 ((FloatAuto*)current)->toggle_curve_mode();
2642
2643                                 // drag will start dragging the tangent, if applicable
2644                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2645                                 mwindow->session->drag_handle = 0;
2646                         }
2647                 }
2648
2649                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2650
2651 // Test in control
2652                 if( in_x != x && current->position > 0 &&
2653                         (FloatAuto::FREE == current->curve_mode ||
2654                          FloatAuto::TFREE == current->curve_mode))
2655 // act on in control handle only if
2656 // tangent is significant and is editable (not automatically choosen)
2657                 {
2658                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2659  // either cursor in ctrl-point handle or cursor on tangent line
2660                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2661                                 result = 1;
2662                                 if(buttonpress && (buttonpress != 3)) {
2663                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2664 //                                      lever = 1.0;
2665                                         mwindow->session->drag_handle = 1;
2666                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2667                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2668                                                   value_to_percentage(new_invalue, autogrouptype))
2669                                 }
2670                         }
2671                 }
2672
2673 // Test out control
2674                 if(out_x != x &&
2675                         (FloatAuto::FREE == current->curve_mode ||
2676                          FloatAuto::TFREE == current->curve_mode))
2677 // act on out control only if tangent is significant and is editable
2678                 {
2679                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2680                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2681                                 result = 1;
2682                                 if(buttonpress && (buttonpress != 3)) {
2683                                         if(lever == 0.0) lever=1.0;
2684 //                                      lever = 1.0;
2685                                         mwindow->session->drag_handle = 2;
2686                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2687                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2688                                                   value_to_percentage(new_outvalue, autogrouptype))
2689                                 }
2690                         }
2691                 }
2692         } // end ctrl_down()
2693
2694 #undef WITHIN
2695 #undef INIT_DRAG
2696
2697 // if(buttonpress)
2698 // 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",
2699 // mwindow->session->drag_handle,
2700 // ctrl_down(),
2701 // cursor_x,
2702 // cursor_y,
2703 // x1, x2, y1, y2);
2704         if(buttonpress && (buttonpress != 3) && result)
2705         {
2706                 mwindow->undo->update_undo_before();
2707         }
2708
2709         return result;
2710 }
2711
2712
2713 // Get the float value & y for position x on the canvas
2714 #define X_TO_FLOATLINE(x) \
2715         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2716         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2717 /* Call by reference fails for some reason here */ \
2718         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2719         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2720         double position = unit_start + x * zoom_units; \
2721         double value = 0; \
2722         if(position2 > position1) \
2723         { \
2724                 value = value1 + \
2725                         (value2 - value1) * \
2726                         (position - position1) / \
2727                         (position2 - position1); \
2728         } \
2729         else \
2730         { \
2731                 value = value1; \
2732         } \
2733         AUTOMATIONCLAMPS(value, autogrouptype); \
2734         int y = center_pixel + \
2735                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2736
2737
2738 void TrackCanvas::draw_floatline(int center_pixel,
2739         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2740         double unit_start, double zoom_units, double yscale,
2741         int x1, int y1, int x2, int y2,
2742         int color, int autogrouptype)
2743 {
2744 // Solve bezier equation for either every pixel or a certain large number of
2745 // points.
2746
2747 // Not using slope intercept
2748         x1 = MAX(0, x1);
2749         int prev_y = y1 + center_pixel;
2750
2751
2752 // Call by reference fails for some reason here
2753         FloatAuto *previous1 = previous, *next1 = next;
2754         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2755         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2756         float automation_range = automation_max - automation_min;
2757
2758         for(int x = x1; x < x2; x++)
2759         {
2760 // Interpolate value between frames
2761                 X_TO_FLOATLINE(x)
2762
2763                 if(/* x > x1 && */
2764                         y >= center_pixel - yscale / 2 &&
2765                         y < center_pixel + yscale / 2 - 1)
2766                 {
2767 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2768 // y,
2769 // (int)(center_pixel - yscale / 2),
2770 // (int)(center_pixel + yscale / 2 - 1));
2771
2772 //printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
2773                         draw_line(x - 1, prev_y  , x, y   );
2774                 }
2775                 prev_y = y;
2776         }
2777 }
2778
2779
2780
2781
2782
2783 int TrackCanvas::test_floatline(int center_pixel,
2784                 FloatAutos *autos,
2785                 double unit_start,
2786                 double zoom_units,
2787                 double yscale,
2788                 int x1,
2789                 int x2,
2790                 int cursor_x,
2791                 int cursor_y,
2792                 int buttonpress,
2793                 int autogrouptype)
2794 {
2795         int result = 0;
2796
2797
2798         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2799         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2800         float automation_range = automation_max - automation_min;
2801         FloatAuto *previous1 = 0, *next1 = 0;
2802         X_TO_FLOATLINE(cursor_x);
2803
2804         if(cursor_x >= x1 &&
2805                 cursor_x < x2 &&
2806                 cursor_y >= y - HANDLE_W / 2 &&
2807                 cursor_y < y + HANDLE_W / 2 &&
2808                 !ctrl_down())
2809         {
2810                 result = 1;
2811
2812 // Menu
2813                 if(buttonpress == 3)
2814                 {
2815                 }
2816                 else
2817 // Create keyframe
2818                 if(buttonpress)
2819                 {
2820                         Auto *current;
2821                         mwindow->undo->update_undo_before();
2822                         double position = autos->track->from_units(position1);
2823                         position = mwindow->edl->align_to_frame(position, 0);
2824                         int64_t new_position = autos->track->to_units(position,0);
2825                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2826                         ((FloatAuto*)current)->set_value(value);
2827                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2828                         mwindow->session->drag_start_position = current->position;
2829                         mwindow->session->drag_origin_x = cursor_x;
2830                         mwindow->session->drag_origin_y = cursor_y;
2831                         mwindow->session->drag_handle = 0;
2832                 }
2833         }
2834
2835
2836         return result;
2837 }
2838
2839
2840 void TrackCanvas::fill_ganged_autos(int all, float change, Track *skip, FloatAuto *fauto)
2841 {
2842         if( !skip->gang ) return;
2843 // Handles the special case of modifying a fadeauto
2844 // when there are ganged faders on several tracks
2845         double position = skip->from_units(fauto->position);
2846         int autoidx = fauto->autos->autoidx;
2847
2848         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2849                 if( (all || current->data_type == skip->data_type) &&
2850                     current->gang && current->record && current != skip ) {
2851                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2852                         float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2853                         float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2854                         int64_t current_position = current->to_units(position, 1);
2855                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
2856                         if( keyframe ) {
2857 // keyframe exists, just change it
2858                                 float value = keyframe->get_value();
2859                                 float new_value = value + change;
2860                                 CLAMP(new_value, auto_min, auto_max);
2861                                 keyframe->adjust_to_new_coordinates(current_position, new_value);
2862                         }
2863                         else {
2864 // create keyframe on neighbouring track at the point in time given by fauto
2865                                 FloatAuto *previous = 0, *next = 0;
2866                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2867                                 float new_value = value + change;
2868                                 CLAMP(new_value, auto_min, auto_max);
2869                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2870                                 keyframe->set_value(new_value);
2871                         }
2872                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2873                 }
2874         }
2875 }
2876
2877 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
2878 {
2879         double position = skip->from_units(fauto->position);
2880 // Move the gangs
2881         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2882                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2883                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2884                 float new_value = keyframe->get_value() + change;
2885                 CLAMP(new_value,
2886                       mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2887                       mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2888                 keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2889         }
2890 }
2891
2892 void TrackCanvas::clear_ganged_autos()
2893 {
2894 // remove the gangs
2895         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2896                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2897                 keyframe->autos->remove_nonsequential(keyframe);
2898         }
2899         mwindow->session->drag_auto_gang->remove_all();
2900 }
2901
2902
2903 void TrackCanvas::draw_toggleline(int center_pixel,
2904         int x1,
2905         int y1,
2906         int x2,
2907         int y2)
2908 {
2909         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2910
2911         if(y2 != y1)
2912         {
2913                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2914         }
2915 }
2916
2917 int TrackCanvas::test_toggleline(Autos *autos,
2918         int center_pixel,
2919         int x1,
2920         int y1,
2921         int x2,
2922         int y2,
2923         int cursor_x,
2924         int cursor_y,
2925         int buttonpress)
2926 {
2927         int result = 0;
2928         if(cursor_x >= x1 && cursor_x < x2)
2929         {
2930                 int miny = center_pixel + y1 - HANDLE_W / 2;
2931                 int maxy = center_pixel + y1 + HANDLE_W / 2;
2932                 if(cursor_y >= miny && cursor_y < maxy)
2933                 {
2934                         result = 1;
2935
2936 // Menu
2937                         if(buttonpress == 3)
2938                         {
2939                         }
2940                         else
2941 // Insert keyframe
2942                         if(buttonpress)
2943                         {
2944                                 Auto *current;
2945                                 double position = (double)(cursor_x +
2946                                                 mwindow->edl->local_session->view_start[pane->number]) *
2947                                         mwindow->edl->local_session->zoom_sample /
2948                                         mwindow->edl->session->sample_rate;
2949                                 int64_t unit_position = autos->track->to_units(position, 0);
2950                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
2951
2952                                 mwindow->undo->update_undo_before();
2953
2954                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
2955                                 ((IntAuto*)current)->value = new_value;
2956                                 // Toggle Autos don't respond to vertical zoom, they always show up
2957                                 // with "on" == 100% == line on top
2958                                 mwindow->session->drag_start_percentage = (float)new_value;
2959                                 mwindow->session->drag_start_position = current->position;
2960                                 mwindow->session->drag_origin_x = cursor_x;
2961                                 mwindow->session->drag_origin_y = cursor_y;
2962                         }
2963                 }
2964         };
2965
2966         return result;
2967 }
2968
2969 void TrackCanvas::calculate_viewport(Track *track,
2970         double &view_start,   // Seconds
2971         double &unit_start,
2972         double &view_end,     // Seconds
2973         double &unit_end,
2974         double &yscale,
2975         int &center_pixel,
2976         double &zoom_sample,
2977         double &zoom_units)
2978 {
2979
2980         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
2981                 mwindow->edl->local_session->zoom_sample /
2982                 mwindow->edl->session->sample_rate;
2983         unit_start = track->to_doubleunits(view_start);
2984         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
2985                 get_w()) *
2986                 mwindow->edl->local_session->zoom_sample /
2987                 mwindow->edl->session->sample_rate;
2988         unit_end = track->to_doubleunits(view_end);
2989
2990         int y = track->y_pixel
2991                         - mwindow->edl->local_session->track_start[pane->number];
2992         int has_titles = track->show_titles();
2993         int has_assets = track->show_assets();
2994         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
2995         double asset_h = resource_h();
2996         double title_h = mwindow->theme->title_h;
2997         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
2998         double dy = has_titles ?
2999                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2) :
3000                 ( has_assets ? asset_h/2 : 0) ;
3001         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
3002         yscale = ys;
3003         center_pixel = y + dy;
3004
3005         zoom_sample = mwindow->edl->local_session->zoom_sample;
3006         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
3007 }
3008
3009 float TrackCanvas::percentage_to_value(float percentage,
3010         int is_toggle,
3011         Auto *reference,
3012         int autogrouptype)
3013 {
3014         float result;
3015         if(is_toggle)
3016         {
3017                 if(percentage > 0.5)
3018                         result = 1;
3019                 else
3020                         result = 0;
3021         }
3022         else
3023         {
3024                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3025                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3026                 float automation_range = automation_max - automation_min;
3027
3028                 result = percentage * automation_range + automation_min;
3029                 if(reference)
3030                 {
3031                         FloatAuto *ptr = (FloatAuto*)reference;
3032                         result -= ptr->get_value();
3033                 }
3034 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
3035         }
3036         return result;
3037 }
3038
3039
3040 void TrackCanvas::calculate_auto_position(double *x, double *y,
3041         double *in_x, double *in_y, double *out_x, double *out_y,
3042         Auto *current, double unit_start, double zoom_units, double yscale,
3043         int autogrouptype)
3044 {
3045         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3046         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3047         float automation_range = automation_max - automation_min;
3048         FloatAuto *ptr = (FloatAuto*)current;
3049         *x = (double)(ptr->position - unit_start) / zoom_units;
3050         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
3051
3052         if(in_x) {
3053 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
3054                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
3055         }
3056
3057         if(in_y) {
3058                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
3059                                 automation_min) / automation_range - 0.5) * -yscale;
3060         }
3061
3062         if(out_x) {
3063 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
3064                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
3065         }
3066
3067         if(out_y) {
3068                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
3069                                  automation_min) / automation_range - 0.5) * -yscale;
3070         }
3071 }
3072
3073
3074 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
3075                 int draw, int buttonpress, int x_offset, int y_offset, int color,
3076                 Auto* &auto_instance, int autogrouptype)
3077 {
3078         int result = 0;
3079         int center_pixel, draw_auto;
3080         double view_start, unit_start;
3081         double view_end, unit_end, yscale;
3082         double zoom_sample, zoom_units;
3083         double in_x2, in_y2, out_x2, out_y2;
3084         double slope;
3085         //int skip = 0;
3086
3087         auto_instance = 0;
3088
3089         if(draw) set_color(color);
3090
3091         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3092                         yscale, center_pixel, zoom_sample, zoom_units);
3093
3094 // Get first auto before start
3095         Auto *current = 0, *previous = 0;
3096
3097         for( current = autos->last;
3098                 current && current->position >= unit_start;
3099                 current = PREVIOUS ) ;
3100
3101         Auto *first_auto = current ? current :
3102                  autos->first ? autos->first : autos->default_auto;
3103
3104         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
3105         if( first_auto ) {
3106                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3107                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
3108         }
3109         if( current )
3110                 current = NEXT;
3111         else {
3112                 current = autos->first;
3113                 ax = 0;
3114         }
3115
3116         do {
3117                 //skip = 0;
3118                 draw_auto = 1;
3119
3120                 if(current) {
3121                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
3122                                 current, unit_start, zoom_units, yscale, autogrouptype);
3123                 }
3124                 else {
3125                         ax2 = get_w();
3126                         ay2 = ay;
3127                         //skip = 1;
3128                 }
3129
3130                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3131
3132                 if(ax2 > get_w()) {
3133                         draw_auto = 0;
3134                         ax2 = get_w();
3135                         ay2 = ay + slope * (get_w() - ax);
3136                 }
3137
3138                 if(ax < 0) {
3139                         ay = ay + slope * (0 - ax);
3140                         ax = 0;
3141                 }
3142
3143 // Draw or test handle
3144                 if( current && !result && current != autos->default_auto ) {
3145                         if( !draw && track->record ) {
3146                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
3147                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
3148                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3149                                         buttonpress, autogrouptype);
3150                                 if( result )
3151                                         auto_instance = current;
3152                         }
3153                         if( draw && draw_auto ) {
3154                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
3155                                         (int)in_x2 + x_offset, (int)in_y2,
3156                                         (int)out_x2 + x_offset, (int)out_y2,
3157                                         (int)center_pixel + y_offset, (int)yscale, color);
3158                         }
3159                 }
3160
3161 // Draw or test joining line
3162                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
3163                         result = test_floatline(center_pixel,
3164                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3165 // Exclude auto coverage from the end of the line.  The auto overlaps
3166                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3167                                 buttonpress, autogrouptype);
3168                 }
3169                 if( draw )
3170                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3171                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3172                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3173                                 color, autogrouptype);
3174
3175                 if( current ) {
3176                         previous = current;
3177                         current = NEXT;
3178                 }
3179
3180                 ax = ax2;  ay = ay2;
3181         } while( current && current->position <= unit_end && !result );
3182
3183         if( ax < get_w() && !result ) {
3184                 ax2 = get_w();  ay2 = ay;
3185                 if(!draw && track->record /* && buttonpress != 3 */ ) {
3186                         result = test_floatline(center_pixel,
3187                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3188                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3189                                 buttonpress, autogrouptype);
3190                 }
3191                 if( draw )
3192                         draw_floatline(center_pixel,
3193                                 (FloatAuto*)previous, (FloatAuto*)current,
3194                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3195                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3196                                 color, autogrouptype);
3197         }
3198
3199         return result;
3200 }
3201
3202
3203 int TrackCanvas::do_int_autos(Track *track,
3204                 Autos *autos,
3205                 int cursor_x,
3206                 int cursor_y,
3207                 int draw,
3208                 int buttonpress,
3209                 int x_offset,
3210                 int y_offset,
3211                 int color,
3212                 Auto *&auto_instance)
3213 {
3214         int result = 0;
3215         double view_start;
3216         double unit_start;
3217         double view_end;
3218         double unit_end;
3219         double yscale;
3220         int center_pixel;
3221         double zoom_sample;
3222         double zoom_units;
3223         double ax, ay, ax2, ay2;
3224
3225         auto_instance = 0;
3226
3227         if(draw) set_color(color);
3228
3229         calculate_viewport(track,
3230                 view_start,
3231                 unit_start,
3232                 view_end,
3233                 unit_end,
3234                 yscale,
3235                 center_pixel,
3236                 zoom_sample,
3237                 zoom_units);
3238
3239
3240         double high = -yscale * 0.8 / 2;
3241         double low = yscale * 0.8 / 2;
3242
3243 // Get first auto before start
3244         Auto *current;
3245         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3246                 ;
3247
3248         if(current)
3249         {
3250                 ax = 0;
3251                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3252                 current = NEXT;
3253         }
3254         else
3255         {
3256                 current = autos->first ? autos->first : autos->default_auto;
3257                 if(current)
3258                 {
3259                         ax = 0;
3260                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3261                 }
3262                 else
3263                 {
3264                         ax = 0;
3265                         ay = yscale;
3266                 }
3267         }
3268
3269         do
3270         {
3271                 if(current)
3272                 {
3273                         ax2 = (double)(current->position - unit_start) / zoom_units;
3274                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3275                 }
3276                 else
3277                 {
3278                         ax2 = get_w();
3279                         ay2 = ay;
3280                 }
3281
3282                 if(ax2 > get_w()) ax2 = get_w();
3283
3284                 if(current && !result)
3285                 {
3286                         if(current != autos->default_auto)
3287                         {
3288                                 if(!draw)
3289                                 {
3290                                         if(track->record)
3291                                         {
3292                                                 result = test_auto(current,
3293                                                         (int)ax2,
3294                                                         (int)ay2,
3295                                                         (int)center_pixel,
3296                                                         (int)yscale,
3297                                                         cursor_x,
3298                                                         cursor_y,
3299                                                         buttonpress);
3300                                                 if (result)
3301                                                         auto_instance = current;
3302                                         }
3303                                 }
3304                                 else
3305                                         draw_auto(current,
3306                                                 (int)ax2 + x_offset,
3307                                                 (int)ay2 + y_offset,
3308                                                 (int)center_pixel,
3309                                                 (int)yscale);
3310                         }
3311
3312                         current = NEXT;
3313                 }
3314
3315                 if(!draw)
3316                 {
3317                         if(!result)
3318                         {
3319                                 if(track->record /* && buttonpress != 3 */)
3320                                 {
3321                                         result = test_toggleline(autos,
3322                                                 center_pixel,
3323                                                 (int)ax,
3324                                                 (int)ay,
3325                                                 (int)ax2,
3326                                                 (int)ay2,
3327                                                 cursor_x,
3328                                                 cursor_y,
3329                                                 buttonpress);
3330                                 }
3331                         }
3332                 }
3333                 else
3334                         draw_toggleline(center_pixel + y_offset,
3335                                 (int)ax,
3336                                 (int)ay,
3337                                 (int)ax2,
3338                                 (int)ay2);
3339
3340                 ax = ax2;
3341                 ay = ay2;
3342         }while(current && current->position <= unit_end && !result);
3343
3344         if(ax < get_w() && !result)
3345         {
3346                 ax2 = get_w();
3347                 ay2 = ay;
3348                 if(!draw)
3349                 {
3350                         if(track->record /* && buttonpress != 3 */)
3351                         {
3352                                 result = test_toggleline(autos,
3353                                         center_pixel,
3354                                         (int)ax,
3355                                         (int)ay,
3356                                         (int)ax2,
3357                                         (int)ay2,
3358                                         cursor_x,
3359                                         cursor_y,
3360                                         buttonpress);
3361                         }
3362                 }
3363                 else
3364                         draw_toggleline(center_pixel + y_offset,
3365                                 (int)ax,
3366                                 (int)ay,
3367                                 (int)ax2,
3368                                 (int)ay2);
3369         }
3370         return result;
3371 }
3372
3373 int TrackCanvas::do_autos(Track *track,
3374                 Autos *autos,
3375                 int cursor_x,
3376                 int cursor_y,
3377                 int draw,
3378                 int buttonpress,
3379                 BC_Pixmap *pixmap,
3380                 Auto * &auto_instance,
3381                 int &rerender)
3382 {
3383         int result = 0;
3384
3385         double view_start;
3386         double unit_start;
3387         double view_end;
3388         double unit_end;
3389         double yscale;
3390         int center_pixel;
3391         double zoom_sample;
3392         double zoom_units;
3393
3394         calculate_viewport(track,
3395                 view_start,
3396                 unit_start,
3397                 view_end,
3398                 unit_end,
3399                 yscale,
3400                 center_pixel,
3401                 zoom_sample,
3402                 zoom_units);
3403
3404         Auto *current;
3405         auto_instance = 0;
3406
3407         for(current = autos->first; current && !result; current = NEXT)
3408         {
3409                 if(current->position >= unit_start && current->position < unit_end)
3410                 {
3411                         int64_t x, y;
3412                         x = (int64_t)((double)(current->position - unit_start) /
3413                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3414                         y = center_pixel - pixmap->get_h() / 2;
3415
3416                         if(!draw)
3417                         {
3418                                 if(cursor_x >= x && cursor_y >= y &&
3419                                         cursor_x < x + pixmap->get_w() &&
3420                                         cursor_y < y + pixmap->get_h())
3421                                 {
3422                                         result = 1;
3423                                         auto_instance = current;
3424
3425                                         if(buttonpress && (buttonpress != 3))
3426                                         {
3427                                                 mwindow->session->drag_auto = current;
3428                                                 mwindow->session->drag_start_position = current->position;
3429                                                 mwindow->session->drag_origin_x = cursor_x;
3430                                                 mwindow->session->drag_origin_y = cursor_y;
3431
3432                                                 double position = autos->track->from_units(current->position);
3433                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3434                                                         mwindow->edl->local_session->get_selectionend(1)) /
3435                                                         2;
3436
3437                                                 if(!shift_down())
3438                                                 {
3439                                                         mwindow->edl->local_session->set_selectionstart(position);
3440                                                         mwindow->edl->local_session->set_selectionend(position);
3441                                                 }
3442                                                 else
3443                                                 if(position < center)
3444                                                 {
3445                                                         mwindow->edl->local_session->set_selectionstart(position);
3446                                                 }
3447                                                 else
3448                                                         mwindow->edl->local_session->set_selectionend(position);
3449
3450                                                 rerender = 1;
3451                                         }
3452                                 }
3453                         }
3454                         else
3455                                 draw_pixmap(pixmap, x, y);
3456                 }
3457         }
3458
3459
3460         return result;
3461 }
3462
3463 // so this means it is always >0 when keyframe is found
3464 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3465                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3466                 KeyFrame* &keyframe_instance)
3467 {
3468         int result = 0;
3469
3470         double view_start;
3471         double unit_start;
3472         double view_end;
3473         double unit_end;
3474         double yscale;
3475         int center_pixel;
3476         double zoom_sample;
3477         double zoom_units;
3478
3479         if(!track->expand_view) return 0;
3480
3481         calculate_viewport(track,
3482                 view_start,
3483                 unit_start,
3484                 view_end,
3485                 unit_end,
3486                 yscale,
3487                 center_pixel,
3488                 zoom_sample,
3489                 zoom_units);
3490
3491
3492
3493         for(int i = 0; i < track->plugin_set.total && !result; i++)
3494         {
3495                 PluginSet *plugin_set = track->plugin_set.values[i];
3496                 int center_pixel = track->y_pixel -
3497                         mwindow->edl->local_session->track_start[pane->number];
3498                 if( track->show_titles() )
3499                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3500                 if( track->show_assets() )
3501                         center_pixel += resource_h();
3502                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3503
3504                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3505                         plugin && !result;
3506                         plugin = (Plugin*)plugin->next)
3507                 {
3508                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3509                                 keyframe && !result;
3510                                 keyframe = (KeyFrame*)keyframe->next)
3511                         {
3512 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3513                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3514                                 {
3515                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3516                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3517
3518 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3519                                         if(!draw)
3520                                         {
3521                                                 if(cursor_x >= x && cursor_y >= y &&
3522                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3523                                                         cursor_y < y + keyframe_pixmap->get_h())
3524                                                 {
3525                                                         result = 1;
3526                                                         keyframe_plugin = plugin;
3527                                                         keyframe_instance = keyframe;
3528
3529                                                         if(buttonpress)
3530                                                         {
3531                                                                 mwindow->session->drag_auto = keyframe;
3532                                                                 mwindow->session->drag_start_position = keyframe->position;
3533                                                                 mwindow->session->drag_origin_x = cursor_x;
3534                                                                 mwindow->session->drag_origin_y = cursor_y;
3535
3536                                                                 double position = track->from_units(keyframe->position);
3537                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3538                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3539                                                                         2;
3540
3541                                                                 if(!shift_down())
3542                                                                 {
3543                                                                         mwindow->edl->local_session->set_selectionstart(position);
3544                                                                         mwindow->edl->local_session->set_selectionend(position);
3545                                                                 }
3546                                                                 else
3547                                                                 if(position < center)
3548                                                                 {
3549                                                                         mwindow->edl->local_session->set_selectionstart(position);
3550                                                                 }
3551                                                                 else
3552                                                                         mwindow->edl->local_session->set_selectionend(position);
3553                                                         }
3554                                                 }
3555                                         }
3556                                         else
3557                                                 draw_pixmap(keyframe_pixmap,
3558                                                         x,
3559                                                         y);
3560                                 }
3561                         }
3562                 }
3563         }
3564
3565
3566
3567 //      if(buttonpress && buttonpress != 3 && result)
3568 //      {
3569 //              mwindow->undo->update_undo_before();
3570 //      }
3571
3572         return result;
3573 }
3574
3575 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
3576 {
3577         Track *track = auto_keyframe->autos->track;
3578         int autogrouptype = auto_keyframe->autos->autogrouptype;
3579
3580         int center_pixel;
3581         double view_start, unit_start;
3582         double view_end, unit_end, yscale;
3583         double zoom_sample, zoom_units;
3584
3585         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3586                         yscale, center_pixel, zoom_sample, zoom_units);
3587         if( auto_keyframe->position < unit_start ||
3588             auto_keyframe->position >= unit_end )
3589                 return 0;
3590
3591         double ax = 0, ay = 0;
3592         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3593                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3594
3595         set_color(color);
3596         draw_line(ax, 0, ax, get_h());
3597
3598         if( show ) {
3599                 char text[BCSTRLEN];
3600                 if( auto_keyframe->is_floatauto() ) {
3601                         FloatAuto *float_auto = (FloatAuto *)auto_keyframe;
3602                         sprintf(text, "%0.2f", float_auto->get_value());
3603                 }
3604                 else {
3605                         IntAuto *int_auto = (IntAuto *)auto_keyframe;
3606                         sprintf(text, "%d", int_auto->value);
3607                 }
3608                 int font = MEDIUMFONT;
3609                 int tw = get_text_width(font, text)  + TOOLTIP_MARGIN * 2;
3610                 int th = get_text_height(font, text) + TOOLTIP_MARGIN * 2;
3611                 set_color(get_resources()->tooltip_bg_color);
3612                 ax += HANDLE_W/2;
3613                 ay += center_pixel + HANDLE_W/2;
3614                 draw_box(ax, ay, tw, th);
3615                 set_color(BLACK);
3616                 draw_rectangle(ax, ay, tw, th);
3617                 set_font(font);
3618                 ax += TOOLTIP_MARGIN;
3619                 ay += TOOLTIP_MARGIN + get_text_ascent(font);
3620                 draw_text(ax, ay, text);
3621         }
3622         return 0;
3623 }
3624
3625 void TrackCanvas::draw_overlays()
3626 {
3627         int new_cursor, update_cursor, rerender;
3628
3629 // Move background pixmap to foreground pixmap
3630         draw_pixmap(background_pixmap,
3631                 0,
3632                 0,
3633                 get_w(),
3634                 get_h(),
3635                 0,
3636                 0);
3637
3638 // In/Out points
3639         draw_inout_points();
3640
3641 // Transitions
3642         draw_transitions();
3643
3644 // Plugins
3645         draw_plugins();
3646         draw_hard_edges();
3647
3648 // Loop points
3649         draw_loop_points();
3650         draw_brender_range();
3651
3652 // Highlighted areas
3653         draw_highlighting();
3654
3655 // Automation
3656         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3657
3658 // Selection cursor
3659         if(pane->cursor) pane->cursor->restore(1);
3660
3661 // Handle dragging
3662         draw_drag_handle();
3663
3664 // Playback cursor
3665         draw_playback_cursor();
3666
3667         draw_keyframe_reticle();
3668
3669         show_window(0);
3670 }
3671
3672 int TrackCanvas::activate()
3673 {
3674         if(!active)
3675         {
3676 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3677 //BC_Signals::dump_stack();
3678                 get_top_level()->deactivate();
3679                 active = 1;
3680                 set_active_subwindow(this);
3681                 pane->cursor->activate();
3682                 gui->focused_pane = pane->number;
3683         }
3684         return 0;
3685 }
3686
3687 int TrackCanvas::deactivate()
3688 {
3689         if(active)
3690         {
3691                 active = 0;
3692                 pane->cursor->deactivate();
3693         }
3694         return 0;
3695 }
3696
3697
3698 void TrackCanvas::update_drag_handle()
3699 {
3700         double new_position;
3701         int cursor_x = get_cursor_x();
3702
3703         new_position =
3704                 (double)(cursor_x +
3705                 mwindow->edl->local_session->view_start[pane->number]) *
3706                 mwindow->edl->local_session->zoom_sample /
3707                 mwindow->edl->session->sample_rate;
3708
3709         new_position =
3710                 mwindow->edl->align_to_frame(new_position, 0);
3711
3712         if( ctrl_down() && alt_down() ) {
3713 #define snapper(v) do { \
3714         double pos = (v); \
3715         if( pos < 0 ) break; \
3716         double dist = fabs(new_position - pos); \
3717         if( dist >= snap_min ) break; \
3718         snap_position = pos;  snap_min = dist; \
3719 } while(0)
3720                 double snap_position = new_position;
3721                 double snap_min = DBL_MAX;
3722                 if( mwindow->edl->local_session->inpoint_valid() )
3723                         snapper(mwindow->edl->local_session->get_inpoint());
3724                 if( mwindow->edl->local_session->outpoint_valid() )
3725                         snapper(mwindow->edl->local_session->get_outpoint());
3726                 snapper(mwindow->edl->prev_edit(new_position));
3727                 snapper(mwindow->edl->next_edit(new_position));
3728                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3729                 if( prev_label ) snapper(prev_label->position);
3730                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3731                 if( next_label ) snapper(next_label->position);
3732                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3733                         mwindow->edl->local_session->zoom_sample -
3734                         mwindow->edl->local_session->view_start[pane->number];
3735                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3736                         snapped = 1;
3737                         new_position = snap_position;
3738                 }
3739 #undef snapper
3740         }
3741
3742         if(new_position != mwindow->session->drag_position)
3743         {
3744                 mwindow->session->drag_position = new_position;
3745                 gui->mainclock->update(new_position);
3746                 timebar_position = new_position;
3747                 gui->update_timebar(0);
3748
3749                 EDL *edl = new EDL;
3750                 edl->create_objects();
3751                 edl->copy_all(mwindow->edl);
3752                 MainSession *session = mwindow->session;
3753                 int edit_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3754                 edl->modify_edithandles(session->drag_start,
3755                         session->drag_position,
3756                         session->drag_handle,
3757                         edit_mode,
3758                         edl->session->labels_follow_edits,
3759                         edl->session->plugins_follow_edits,
3760                         edl->session->autos_follow_edits);
3761                 double position = edit_mode != MOVE_NO_EDITS &&
3762                         ( session->drag_handle || edit_mode == MOVE_ONE_EDIT ) ?
3763                                 session->drag_position : session->drag_start;
3764                 Track *track = session->drag_handle_track();
3765                 int64_t pos = track->to_units(position, 0);
3766                 render_handle_frame(edl, pos, shift_down() ? 0 :
3767                         session->drag_handle ? 1 : 2);
3768                 edl->remove_user();
3769         }
3770 }
3771
3772 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3773 {
3774         int result = 0;
3775         int64_t left = pos-1;
3776         if( left < 0 ) left = 0;
3777         switch( mode ) {
3778         case 0: {
3779                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3780                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3781                 TransportCommand command;
3782                 command.command = CURRENT_FRAME;
3783                 command.get_edl()->copy_all((EDL *)edl);
3784                 command.change_type = CHANGE_ALL;
3785                 command.realtime = 0;
3786                 Preferences *preferences = mwindow->preferences;
3787                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3788                 CICache *video_cache = new CICache(preferences);
3789                 render_engine->set_vcache(video_cache);
3790                 render_engine->arm_command(&command);
3791                 int64_t left = pos-1;
3792                 if( left < 0 ) left = 0;
3793                 VRender *vrender = render_engine->vrender;
3794                 result = vrender &&
3795                         !vrender->process_buffer(&vlt, left, 0) &&
3796                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3797                 delete render_engine;
3798                 delete video_cache;
3799                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3800                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3801                 canvas->lock_canvas("TrackCanvas::render_handle_frame 1");
3802                 int w = canvas->w, h = canvas->h, w2 = w/2, h2 = h/2;
3803                 int lx = 0, ly = h2/2, rx = w2, ry = h2/2;
3804                 BC_WindowBase *window = canvas->get_canvas();
3805                 window->set_color(BLACK);
3806                 window->clear_box(0,0, window->get_w(),window->get_h());
3807                 window->draw_vframe(&vlt, lx,ly, w2,h2, 0,0,vlt.get_w(),vlt.get_h());
3808                 window->draw_vframe(&vrt, rx,ry, w2,h2, 0,0,vrt.get_w(),vrt.get_h());
3809                 window->flash(1);
3810                 canvas->unlock_canvas();
3811                 mwindow->cwindow->gui->unlock_window();
3812                 break; }
3813         case 1:
3814         case 2: {
3815                 Track *track = mwindow->session->drag_handle_track();
3816                 double position = track->from_units(mode == 1 ? left : pos);
3817                 if( position < 0 ) position = 0;
3818                 edl->local_session->set_selectionstart(position);
3819                 edl->local_session->set_selectionend(position);
3820                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3821                 if( playback_engine->is_playing_back )
3822                         playback_engine->stop_playback(1);
3823                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3824                 break; }
3825         }
3826         return result;
3827 }
3828
3829 int TrackCanvas::update_drag_edit()
3830 {
3831         int result = 0;
3832
3833
3834
3835         return result;
3836 }
3837
3838 int TrackCanvas::get_drag_values(float *percentage,
3839         int64_t *position,
3840         int do_clamp,
3841         int cursor_x,
3842         int cursor_y,
3843         Auto *current)
3844 {
3845         //int x = cursor_x - mwindow->session->drag_origin_x;
3846         //int y = cursor_y - mwindow->session->drag_origin_y;
3847         *percentage = 0;
3848         *position = 0;
3849
3850         if(!current->autos->track->record) return 1;
3851         double view_start;
3852         double unit_start;
3853         double view_end;
3854         double unit_end;
3855         double yscale;
3856         int center_pixel;
3857         double zoom_sample;
3858         double zoom_units;
3859
3860         calculate_viewport(current->autos->track,
3861                 view_start,
3862                 unit_start,
3863                 view_end,
3864                 unit_end,
3865                 yscale,
3866                 center_pixel,
3867                 zoom_sample,
3868                 zoom_units);
3869
3870         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3871                 yscale +
3872                 mwindow->session->drag_start_percentage;
3873         if(do_clamp) CLAMP(*percentage, 0, 1);
3874
3875         *position = Units::to_int64(zoom_units *
3876                 (cursor_x - mwindow->session->drag_origin_x) +
3877                 mwindow->session->drag_start_position + 0.5);
3878
3879         if((do_clamp) && *position < 0) *position = 0;
3880         return 0;
3881 }
3882
3883
3884 #define UPDATE_DRAG_HEAD(do_clamp) \
3885         int result = 0, center_pixel; \
3886         if(!current->autos->track->record) return 0; \
3887         double view_start, unit_start, view_end, unit_end; \
3888         double yscale, zoom_sample, zoom_units; \
3889  \
3890         calculate_viewport(current->autos->track,  \
3891                 view_start, unit_start, view_end, unit_end, \
3892                 yscale, center_pixel, zoom_sample, zoom_units); \
3893  \
3894         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3895                 yscale +  mwindow->session->drag_start_percentage; \
3896         if(do_clamp) CLAMP(percentage, 0, 1); \
3897  \
3898         int64_t position = Units::to_int64(zoom_units * \
3899                 (cursor_x - mwindow->session->drag_origin_x) + \
3900                 mwindow->session->drag_start_position); \
3901         if((do_clamp) && position < 0) position = 0;
3902
3903
3904 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3905 {
3906         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
3907
3908         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
3909         int x = cursor_x - mwindow->session->drag_origin_x;
3910         int y = cursor_y - mwindow->session->drag_origin_y;
3911         float value, old_value;
3912
3913         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
3914 // not really editing the node, rather start editing the curve
3915 // tangent is editable and drag movement is significant
3916                 if( (FloatAuto::FREE == current->curve_mode ||
3917                      FloatAuto::TFREE==current->curve_mode) &&
3918                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
3919                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
3920         }
3921
3922         switch(mwindow->session->drag_handle) {
3923         case 0: // Center
3924 // Snap to nearby values
3925                 old_value = current->get_value();
3926                 if(shift_down()) {
3927                         double value1, value2, distance1, distance2;
3928
3929                         if(current->previous) {
3930                                 int autogrouptype = current->previous->autos->autogrouptype;
3931                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3932                                 value1 = ((FloatAuto*)current->previous)->get_value();
3933                                 distance1 = fabs(value - value1);
3934                                 current->set_value(value1);
3935                         }
3936
3937                         if(current->next) {
3938                                 int autogrouptype = current->next->autos->autogrouptype;
3939                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3940                                 value2 = ((FloatAuto*)current->next)->get_value();
3941                                 distance2 = fabs(value - value2);
3942                                 if(!current->previous || distance2 < distance1) {
3943                                         current->set_value(value2);
3944                                 }
3945                         }
3946
3947                         if(!current->previous && !current->next) {
3948                                 current->set_value( ((FloatAutos*)current->autos)->default_);
3949                         }
3950                         value = current->get_value();
3951                 }
3952                 else {
3953                         int autogrouptype = current->autos->autogrouptype;
3954                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
3955                 }
3956
3957                 if(alt_down() && !shift_down())
3958 // ALT constrains movement: fixed position, only changing the value
3959                         position = mwindow->session->drag_start_position;
3960
3961                 if(value != old_value || position != current->position) {
3962                         result = 1;
3963                         float change = value - old_value;
3964                         current->adjust_to_new_coordinates(position, value);
3965                         update_ganged_autos(change, current->autos->track, current);
3966                         show_message(current, 1,", %.2f", current->get_value());
3967                 }
3968                 break;
3969
3970 // In control
3971         case 1: {
3972                 int autogrouptype = current->autos->autogrouptype;
3973                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3974                 if(value != current->get_control_in_value())
3975                 {
3976                         result = 1;
3977                         // note: (position,value) need not be at the location of the ctrl point,
3978                         // but could be somewhere in between on the curve (or even outward or
3979                         // on the opposit side). We set the new control point such as
3980                         // to point the curve through (position,value)
3981                         current->set_control_in_value(
3982                                 value * levered_position(position - current->position,
3983                                                          current->get_control_in_position()));
3984                         update_ganged_autos(0, current->autos->track, current);
3985                         show_message(current, 1,", %.2f", current->get_control_in_value());
3986                 }
3987                 break; }
3988
3989 // Out control
3990         case 2: {
3991                 int autogrouptype = current->autos->autogrouptype;
3992                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3993                 if(value != current->get_control_out_value()) {
3994                         result = 1;
3995                         current->set_control_out_value(
3996                                 value * levered_position(position - current->position,
3997                                                          current->get_control_out_position()));
3998                         update_ganged_autos(0, current->autos->track, current);
3999                         show_message(current, 1,", %.2f", current->get_control_out_value());
4000                 }
4001                 break; }
4002         }
4003
4004         return result;
4005 }
4006
4007 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4008 {
4009         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4010
4011         UPDATE_DRAG_HEAD(1);
4012         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4013
4014         if(value != current->value || position != current->position)
4015         {
4016                 result = 1;
4017                 current->value = value;
4018                 current->position = position;
4019                 show_message(current, 0,", %d", current->value);
4020         }
4021
4022         return result;
4023 }
4024
4025 // Autos which can't change value through dragging.
4026
4027 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4028 {
4029         Auto *current = (Auto*)mwindow->session->drag_auto;
4030
4031         UPDATE_DRAG_HEAD(1)
4032         if(position != current->position)
4033         {
4034                 result = 1;
4035                 current->position = position;
4036                 show_message(current, 0,"");
4037
4038                 double position_f = current->autos->track->from_units(current->position);
4039                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4040                         mwindow->edl->local_session->get_selectionend(1)) /
4041                         2;
4042                 if(!shift_down())
4043                 {
4044                         mwindow->edl->local_session->set_selectionstart(position_f);
4045                         mwindow->edl->local_session->set_selectionend(position_f);
4046                 }
4047                 else
4048                 if(position_f < center_f)
4049                 {
4050                         mwindow->edl->local_session->set_selectionstart(position_f);
4051                 }
4052                 else
4053                         mwindow->edl->local_session->set_selectionend(position_f);
4054         }
4055
4056
4057         return result;
4058 }
4059
4060 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4061 {
4062         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4063
4064         UPDATE_DRAG_HEAD(1)
4065         if(position != current->position)
4066         {
4067 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4068                 Track *track = current->autos->track;
4069                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4070                 PluginSet *pluginset;
4071                 Plugin *plugin = 0;
4072 // figure out the correct pluginset & correct plugin
4073                 int found = 0;
4074                 for(int i = 0; i < track->plugin_set.total; i++)
4075                 {
4076                         pluginset = track->plugin_set.values[i];
4077                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4078                         {
4079                                 KeyFrames *keyframes = plugin->keyframes;
4080                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4081                                         currentkeyframe;
4082                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4083                                 {
4084                                         if (currentkeyframe == current)
4085                                         {
4086                                                 found = 1;
4087                                                 break;
4088                                         }
4089
4090                                 }
4091                                 if (found) break;
4092                         }
4093                         if (found) break;
4094                 }
4095
4096                 mwindow->session->plugin_highlighted = plugin;
4097                 mwindow->session->track_highlighted = track;
4098                 result = 1;
4099                 current->position = position;
4100                 show_message(current, 0,"");
4101
4102                 double position_f = current->autos->track->from_units(current->position);
4103                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4104                         mwindow->edl->local_session->get_selectionend(1)) /
4105                         2;
4106                 if(!shift_down())
4107                 {
4108                         mwindow->edl->local_session->set_selectionstart(position_f);
4109                         mwindow->edl->local_session->set_selectionend(position_f);
4110                 }
4111                 else
4112                 if(position_f < center_f)
4113                 {
4114                         mwindow->edl->local_session->set_selectionstart(position_f);
4115                 }
4116                 else
4117                         mwindow->edl->local_session->set_selectionend(position_f);
4118         }
4119
4120
4121         return result;
4122 }
4123
4124 void TrackCanvas::update_drag_caption()
4125 {
4126         switch(mwindow->session->current_operation)
4127         {
4128                 case DRAG_FADE:
4129
4130                         break;
4131         }
4132 }
4133
4134
4135
4136 int TrackCanvas::cursor_update(int in_motion)
4137 {
4138         int result = 0;
4139         int cursor_x = 0;
4140         int cursor_y = 0;
4141         int update_clock = 0;
4142         int update_zoom = 0;
4143         int update_scroll = 0;
4144         int update_overlay = 0;
4145         int update_cursor = 0;
4146         int rerender = 0;
4147         double position = 0.;
4148 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4149
4150 // Default cursor
4151         int new_cursor =
4152                 arrow_mode() ? ARROW_CURSOR :
4153                 ibeam_mode() ? IBEAM_CURSOR : 0;
4154
4155         switch(mwindow->session->current_operation)
4156         {
4157                 case DRAG_EDITHANDLE1:
4158 // Outside threshold.  Upgrade status
4159                         if(active)
4160                         {
4161                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4162                                 {
4163                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
4164                                         update_overlay = 1;
4165                                 }
4166                         }
4167                         break;
4168
4169                 case DRAG_EDITHANDLE2:
4170                         if(active)
4171                         {
4172                                 update_drag_handle();
4173                                 update_overlay = 1;
4174                         }
4175                         break;
4176
4177                 case DRAG_PLUGINHANDLE1:
4178                         if(active)
4179                         {
4180                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4181                                 {
4182                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4183                                         update_overlay = 1;
4184                                 }
4185                         }
4186                         break;
4187
4188                 case DRAG_PLUGINHANDLE2:
4189                         if(active)
4190                         {
4191                                 update_drag_handle();
4192                                 update_overlay = 1;
4193                         }
4194                         break;
4195
4196 // Rubber band curves
4197                 case DRAG_FADE:
4198                 case DRAG_SPEED:
4199                 case DRAG_CZOOM:
4200                 case DRAG_PZOOM:
4201                 case DRAG_CAMERA_X:
4202                 case DRAG_CAMERA_Y:
4203                 case DRAG_CAMERA_Z:
4204                 case DRAG_PROJECTOR_X:
4205                 case DRAG_PROJECTOR_Y:
4206                 case DRAG_PROJECTOR_Z:
4207                         if(active) rerender = update_overlay =
4208                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4209                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4210                                 mwindow->speed_after(!in_motion ? 1 : 0);
4211                         break;
4212
4213                 case DRAG_PLAY:
4214                         if(active) rerender = update_overlay =
4215                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4216                         break;
4217
4218                 case DRAG_MUTE:
4219                         if(active) rerender = update_overlay =
4220                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4221                         break;
4222
4223 // Keyframe icons are sticky
4224                 case DRAG_PAN_PRE:
4225                 case DRAG_MASK_PRE:
4226                 case DRAG_MODE_PRE:
4227                 case DRAG_PLUGINKEY_PRE:
4228                         if(active) {
4229                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4230                                         mwindow->session->current_operation++;
4231                                         update_overlay = 1;
4232
4233                                         mwindow->undo->update_undo_before();
4234                                 }
4235                         }
4236                         break;
4237
4238                 case DRAG_PAN:
4239                 case DRAG_MASK:
4240                 case DRAG_MODE:
4241                         if(active) rerender = update_overlay =
4242                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4243                         break;
4244
4245                 case DRAG_PLUGINKEY:
4246                         if(active) rerender = update_overlay =
4247                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4248                         break;
4249
4250                 case SELECT_REGION:
4251                         if(active) {
4252                                 cursor_x = get_cursor_x();
4253                                 cursor_y = get_cursor_y();
4254                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4255                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4256
4257                                 position = mwindow->edl->align_to_frame(position, 0);
4258                                 position = MAX(position, 0);
4259
4260                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4261                                 double end = mwindow->edl->local_session->get_selectionend(1);
4262                                 if(position < selection_midpoint) {
4263                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4264                                         mwindow->edl->local_session->set_selectionstart(position);
4265                                 }
4266                                 else {
4267                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4268                                         mwindow->edl->local_session->set_selectionend(position);
4269                                 }
4270         // Que the CWindow
4271                                 gui->unlock_window();
4272                                 int dir =
4273                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4274                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4275                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4276                                 gui->lock_window("TrackCanvas::cursor_update 1");
4277         // Update the faders
4278                                 mwindow->update_plugin_guis();
4279                                 gui->update_patchbay();
4280
4281                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4282
4283                                 gui->hide_cursor(0);
4284                                 gui->draw_cursor(1);
4285                                 gui->update_timebar(0);
4286                                 gui->flash_canvas(1);
4287                                 result = 1;
4288                                 update_clock = 1;
4289                                 update_zoom = 1;
4290                                 update_scroll = 1;
4291                         }
4292                         break;
4293
4294                 case DROP_TARGETING:
4295                         new_cursor = GRABBED_CURSOR;
4296                         result = 1;
4297                         break;
4298
4299                 default:
4300                         if(is_event_win() && cursor_inside()) {
4301 // Update clocks
4302                                 cursor_x = get_cursor_x();
4303                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4304                                 position = mwindow->edl->align_to_frame(position, 0);
4305                                 update_clock = 1;
4306 // set all timebars
4307                                 for(int i = 0; i < TOTAL_PANES; i++)
4308                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4309
4310 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4311                                 gui->update_timebar(0);
4312 // Update cursor
4313                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4314                                                 0, new_cursor, update_cursor)) break;
4315                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4316                                         0, 0, new_cursor, update_cursor, rerender)) break;
4317                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4318                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4319 // Plugin boundaries
4320                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4321                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4322                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4323                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4324                         }
4325                         break;
4326         }
4327
4328 //printf("TrackCanvas::cursor_update 1\n");
4329         if(update_cursor && new_cursor != get_cursor())
4330         {
4331                 set_cursor(new_cursor, 0, 1);
4332         }
4333
4334 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4335         if(rerender && render_timer->get_difference() > 0.25 ) {
4336                 render_timer->update();
4337                 mwindow->restart_brender();
4338                 mwindow->sync_parameters(CHANGE_PARAMS);
4339                 mwindow->update_plugin_guis();
4340                 gui->unlock_window();
4341                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4342                 gui->lock_window("TrackCanvas::cursor_update 2");
4343         }
4344         if(rerender) {
4345 // Update faders
4346                 gui->update_patchbay();
4347         }
4348
4349
4350         if(update_clock) {
4351                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4352                         gui->mainclock->update(position);
4353         }
4354
4355         if(update_zoom) {
4356                 gui->zoombar->update();
4357         }
4358
4359         if(update_scroll) {
4360                 if(!drag_scroll &&
4361                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4362                         start_dragscroll();
4363                 else
4364                 if(drag_scroll &&
4365                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4366                         stop_dragscroll();
4367         }
4368
4369         if(update_overlay) {
4370                 gui->draw_overlays(1);
4371         }
4372
4373 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4374         return result;
4375 }
4376
4377 int TrackCanvas::cursor_motion_event()
4378 {
4379         return cursor_update(1);
4380 }
4381
4382 void TrackCanvas::start_dragscroll()
4383 {
4384         if(!drag_scroll) {
4385                 drag_scroll = 1;
4386                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4387 //printf("TrackCanvas::start_dragscroll 1\n");
4388         }
4389 }
4390
4391 void TrackCanvas::stop_dragscroll()
4392 {
4393         if(drag_scroll) {
4394                 drag_scroll = 0;
4395                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4396 //printf("TrackCanvas::stop_dragscroll 1\n");
4397         }
4398 }
4399
4400 int TrackCanvas::repeat_event(int64_t duration)
4401 {
4402         if(!drag_scroll) return 0;
4403         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4404
4405         int sample_movement = 0;
4406         int track_movement = 0;
4407         int64_t x_distance = 0;
4408         int64_t y_distance = 0;
4409         double position = 0;
4410         int result = 0;
4411
4412         switch(mwindow->session->current_operation) {
4413                 case SELECT_REGION:
4414 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4415                 if(get_cursor_x() > get_w()) {
4416                                 x_distance = get_cursor_x() - get_w();
4417                                 sample_movement = 1;
4418                 }
4419                 else if(get_cursor_x() < 0) {
4420                         x_distance = get_cursor_x();
4421                         sample_movement = 1;
4422                 }
4423
4424                 if(get_cursor_y() > get_h()) {
4425                         y_distance = get_cursor_y() - get_h();
4426                         track_movement = 1;
4427                 }
4428                 else if(get_cursor_y() < 0) {
4429                         y_distance = get_cursor_y();
4430                         track_movement = 1;
4431                 }
4432                 result = 1;
4433                 break;
4434         }
4435
4436         if(sample_movement) {
4437                 position = (double)(get_cursor_x() +
4438                         mwindow->edl->local_session->view_start[pane->number] +
4439                         x_distance) *
4440                         mwindow->edl->local_session->zoom_sample /
4441                         mwindow->edl->session->sample_rate;
4442                 position = mwindow->edl->align_to_frame(position, 0);
4443                 position = MAX(position, 0);
4444
4445 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4446                 switch(mwindow->session->current_operation) {
4447                 case SELECT_REGION:
4448                         if(position < selection_midpoint) {
4449                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4450                                 mwindow->edl->local_session->set_selectionstart(position);
4451 // Que the CWindow
4452                                 gui->unlock_window();
4453                                 mwindow->cwindow->update(1, 0, 0);
4454                                 gui->lock_window("TrackCanvas::repeat_event");
4455 // Update the faders
4456                                 mwindow->update_plugin_guis();
4457                                 gui->update_patchbay();
4458                         }
4459                         else {
4460                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4461                                 mwindow->edl->local_session->set_selectionend(position);
4462 // Don't que the CWindow
4463                         }
4464                         break;
4465                 }
4466
4467                 mwindow->samplemovement(
4468                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4469                         pane->number);
4470         }
4471
4472         if(track_movement) {
4473                 mwindow->trackmovement(y_distance, pane->number);
4474         }
4475
4476         return result;
4477 }
4478
4479 int TrackCanvas::button_release_event()
4480 {
4481         int redraw = -1, update_overlay = 0;
4482         int result = 0, load_flags = 0;
4483
4484 // printf("TrackCanvas::button_release_event %d\n",
4485 // mwindow->session->current_operation);
4486         if(active) {
4487                 switch(mwindow->session->current_operation) {
4488                 case DRAG_EDITHANDLE2:
4489                         mwindow->session->current_operation = NO_OPERATION;
4490                         drag_scroll = 0;
4491                         result = 1;
4492
4493                         end_edithandle_selection();
4494                         break;
4495
4496                 case DRAG_EDITHANDLE1:
4497                         mwindow->session->current_operation = NO_OPERATION;
4498                         drag_scroll = 0;
4499                         result = 1;
4500                         break;
4501
4502                 case DRAG_PLUGINHANDLE2:
4503                         mwindow->session->current_operation = NO_OPERATION;
4504                         drag_scroll = 0;
4505                         result = 1;
4506
4507                         end_pluginhandle_selection();
4508                         break;
4509
4510                 case DRAG_PLUGINHANDLE1:
4511                         mwindow->session->current_operation = NO_OPERATION;
4512                         drag_scroll = 0;
4513                         result = 1;
4514                         break;
4515
4516                 case DRAG_SPEED:
4517                         redraw = FORCE_REDRAW;
4518                         load_flags |= LOAD_EDITS;
4519                 case DRAG_FADE:
4520 // delete the drag_auto_gang first and remove out of order keys
4521                         clear_ganged_autos();
4522                 case DRAG_CZOOM:
4523                 case DRAG_PZOOM:
4524                 case DRAG_PLAY:
4525                 case DRAG_MUTE:
4526                 case DRAG_MASK:
4527                 case DRAG_MODE:
4528                 case DRAG_PAN:
4529                 case DRAG_CAMERA_X:
4530                 case DRAG_CAMERA_Y:
4531                 case DRAG_CAMERA_Z:
4532                 case DRAG_PROJECTOR_X:
4533                 case DRAG_PROJECTOR_Y:
4534                 case DRAG_PROJECTOR_Z:
4535                 case DRAG_PLUGINKEY:
4536                         load_flags |= LOAD_AUTOMATION;
4537                         mwindow->session->current_operation = NO_OPERATION;
4538                         mwindow->session->drag_handle = 0;
4539 // Remove any out-of-order keyframe
4540                         if(mwindow->session->drag_auto) {
4541                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4542                                                 mwindow->session->drag_auto);
4543 //                              mwindow->session->drag_auto->autos->optimize();
4544                                 update_overlay = 1;
4545                         }
4546
4547                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4548                         result = 1;
4549                         break;
4550
4551                 case DRAG_EDIT:
4552                 case DRAG_GROUP:
4553                 case DRAG_AEFFECT_COPY:
4554                 case DRAG_VEFFECT_COPY:
4555 // Trap in drag stop
4556                         break;
4557
4558                 case DROP_TARGETING: {
4559                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4560                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4561                         drag_cursor_motion(cursor_x, cursor_y,
4562                                 &track, &edit, &pluginset, &plugin);
4563                         double position =
4564                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4565                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4566                         mwindow->session->current_operation = NO_OPERATION;
4567                         result = 1;
4568                         break; }
4569
4570                 case GROUP_TOGGLE: {
4571                         Edit *edit = mwindow->session->drag_edit;
4572                         if( edit ) {
4573                                 if( shift_down() && edit->is_selected ) {
4574                                         if( edit->group_id > 0 ) {
4575                                                 mwindow->edl->tracks->clear_selected_edits();
4576                                                 mwindow->edl->tracks->del_group(edit->group_id);
4577                                         }
4578                                         else {
4579                                                 int id = mwindow->session->group_number++;
4580                                                 mwindow->edl->tracks->new_group(id);
4581                                         }
4582                                         redraw = 0;
4583                                 }
4584                                 else {
4585                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4586                                                 mwindow->edl->tracks->clear_selected_edits();
4587                                         edit->set_selected(-1);
4588                                 }
4589                         }
4590                         mwindow->session->current_operation = NO_OPERATION;
4591                         update_overlay = 1;
4592                         result = 1;
4593                         drag_scroll = 0;
4594                         break; }
4595
4596                 default:
4597                         if( mwindow->session->current_operation ) {
4598 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4599 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4600 //                              }
4601
4602                                 mwindow->session->current_operation = NO_OPERATION;
4603                                 drag_scroll = 0;
4604                                 //result = 0;
4605                                 break;
4606                         }
4607                         break;
4608                 }
4609         }
4610
4611         if (result)
4612                 cursor_update(0);
4613
4614         if(update_overlay) {
4615                 gui->draw_overlays(1);
4616         }
4617         if(redraw >= 0) {
4618                 gui->draw_canvas(redraw, 0);
4619                 gui->flash_canvas(1);
4620         }
4621         return result;
4622 }
4623
4624 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4625         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4626 {
4627         Edit *edit_result = 0;
4628         int handle_result = -1;
4629         int result = 0;
4630
4631         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4632                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4633                         int64_t edit_x, edit_y, edit_w, edit_h;
4634                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4635
4636                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4637                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4638                                 if( cursor_x < edit_x + HANDLE_W ) {
4639                                         edit_result = edit;
4640                                         handle_result = 0;
4641                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4642                                             track->show_assets() ) {
4643                                                 new_cursor = DOWNLEFT_RESIZE;
4644                                                 if( button_press == LEFT_BUTTON )
4645                                                         result = -1;
4646                                         }
4647                                         else
4648                                                 result = 1;
4649                                 }
4650                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4651                                         edit_result = edit;
4652                                         handle_result = 1;
4653                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4654                                             track->show_assets() ) {
4655                                                 new_cursor = DOWNRIGHT_RESIZE;
4656                                                 if( button_press == LEFT_BUTTON )
4657                                                         result = -1;
4658                                         }
4659                                         else
4660                                                 result = 1;
4661                                 }
4662                         }
4663                 }
4664         }
4665
4666         update_cursor = 1;
4667         if( result > 0 ) {
4668                 double position = 0;
4669                 if( handle_result == 0 ) {
4670                         position = edit_result->track->from_units(edit_result->startproject);
4671                         new_cursor = LEFT_CURSOR;
4672                 }
4673                 else if( handle_result == 1 ) {
4674                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4675                         new_cursor = RIGHT_CURSOR;
4676                 }
4677
4678 // Reposition cursor
4679                 if( button_press ) {
4680                         mwindow->session->drag_edit = edit_result;
4681                         mwindow->session->drag_handle = handle_result;
4682                         mwindow->session->drag_button = get_buttonpress() - 1;
4683                         mwindow->session->drag_position = position;
4684                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4685                         mwindow->session->drag_origin_x = get_cursor_x();
4686                         mwindow->session->drag_origin_y = get_cursor_y();
4687                         mwindow->session->drag_start = position;
4688
4689                         rerender = start_selection(position);
4690                         update_overlay = 1;
4691                 }
4692         }
4693         else if( result < 0 ) {
4694                 mwindow->undo->update_undo_before();
4695                 if( !shift_down() ) {
4696                         if( handle_result == 0 )
4697                                 edit_result->hard_left = !edit_result->hard_left;
4698                         else if( handle_result == 1 )
4699                                 edit_result->hard_right = !edit_result->hard_right;
4700                 }
4701                 else {
4702                         int status = handle_result == 0 ? edit_result->hard_left :
4703                                      handle_result == 1 ? edit_result->hard_right : 0;
4704                         int new_status = !status;
4705                         int64_t edit_edge = edit_result->startproject;
4706                         if( handle_result == 1 ) edit_edge += edit_result->length;
4707                         double edge_position = edit_result->track->from_units(edit_edge);
4708                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4709                                 int64_t track_position = track->to_units(edge_position, 1);
4710                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4711                                 if( left_edit ) {
4712                                         int64_t left_edge = left_edit->startproject;
4713                                         double left_position = track->from_units(left_edge);
4714                                         if( EQUIV(edge_position, left_position) ) {
4715                                                 left_edit->hard_left = new_status;
4716                                                 if( left_edit->previous )
4717                                                         left_edit->previous->hard_right = new_status;
4718                                         }
4719                                 }
4720                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4721                                 if( right_edit ) {
4722                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4723                                         double right_position = track->from_units(right_edge);
4724                                         if( EQUIV(edge_position, right_position) ) {
4725                                                 right_edit->hard_right = new_status;
4726                                                 if( right_edit->next )
4727                                                         right_edit->next->hard_left = new_status;
4728                                         }
4729                                 }
4730                         }
4731                 }
4732                 rerender = update_overlay = 1;
4733                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4734                 result = 1;
4735         }
4736
4737         return result;
4738 }
4739
4740 int TrackCanvas::do_plugin_handles(int cursor_x,
4741         int cursor_y,
4742         int button_press,
4743         int &rerender,
4744         int &update_overlay,
4745         int &new_cursor,
4746         int &update_cursor)
4747 {
4748         Plugin *plugin_result = 0;
4749         int handle_result = 0;
4750         int result = 0;
4751
4752         for(Track *track = mwindow->edl->tracks->first;
4753                 track && !result;
4754                 track = track->next) {
4755                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4756                         PluginSet *plugin_set = track->plugin_set.values[i];
4757                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4758                                 plugin && !result;
4759                                 plugin = (Plugin*)plugin->next) {
4760                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4761                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4762
4763                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4764                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4765                                         if(cursor_x < plugin_x + HANDLE_W) {
4766                                                 plugin_result = plugin;
4767                                                 handle_result = 0;
4768                                                 result = 1;
4769                                         }
4770                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4771                                                 plugin_result = plugin;
4772                                                 handle_result = 1;
4773                                                 result = 1;
4774                                         }
4775                                 }
4776                         }
4777
4778                         if(result && shift_down())
4779                                 mwindow->session->trim_edits = plugin_set;
4780                 }
4781         }
4782
4783         update_cursor = 1;
4784         if(result) {
4785                 double position = 0;
4786                 if(handle_result == 0) {
4787                         position = plugin_result->track->from_units(plugin_result->startproject);
4788                         new_cursor = LEFT_CURSOR;
4789                 }
4790                 else if(handle_result == 1) {
4791                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4792                         new_cursor = RIGHT_CURSOR;
4793                 }
4794
4795                 if(button_press) {
4796                         mwindow->session->drag_plugin = plugin_result;
4797                         mwindow->session->drag_handle = handle_result;
4798                         mwindow->session->drag_button = get_buttonpress() - 1;
4799                         mwindow->session->drag_position = position;
4800                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4801                         mwindow->session->drag_origin_x = get_cursor_x();
4802                         mwindow->session->drag_origin_y = get_cursor_y();
4803                         mwindow->session->drag_start = position;
4804
4805                         rerender = start_selection(position);
4806                         update_overlay = 1;
4807                 }
4808         }
4809
4810         return result;
4811 }
4812
4813
4814 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4815 {
4816         int result = 0;
4817
4818         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4819         drag_cursor_motion(cursor_x, cursor_y,
4820                 &track, &edit, &pluginset, &plugin);
4821
4822         if( button_press && track ) {
4823                 switch( get_buttonpress() ) {
4824                 case RIGHT_BUTTON: {
4825                         double position =
4826                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4827                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
4828                         mwindow->session->current_operation = NO_OPERATION;
4829                         result = 1;
4830                         break; }
4831                 case MIDDLE_BUTTON:
4832                         set_cursor(GRABBED_CURSOR, 0, 1);
4833                         mwindow->session->current_operation = DROP_TARGETING;
4834                         result = 1;
4835                         break;
4836                 }
4837         }
4838
4839         return result;
4840 }
4841
4842 int TrackCanvas::arrow_mode()
4843 {
4844         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
4845 }
4846 int TrackCanvas::ibeam_mode()
4847 {
4848         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
4849 }
4850
4851 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4852         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4853 {
4854         int result = 0;
4855
4856         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4857                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4858                         int64_t edit_x, edit_y, edit_w, edit_h;
4859                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4860
4861 // Cursor inside a track
4862 // Cursor inside an edit
4863                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4864                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4865                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
4866                                         if( get_double_click() ) {
4867                                                 mwindow->edl->tracks->clear_selected_edits();
4868                                                 mwindow->edl->tracks->select_affected_edits(
4869                                                         edit->track->from_units(edit->startproject),
4870                                                         edit->track, 1);
4871                                                 double start = edit->track->from_units(edit->startproject);
4872                                                 start = mwindow->edl->align_to_frame(start, 0);
4873                                                 mwindow->edl->local_session->set_selectionstart(start);
4874                                                 double end = edit->track->from_units(edit->startproject+edit->length);
4875                                                 end = mwindow->edl->align_to_frame(end, 0);
4876                                                 mwindow->edl->local_session->set_selectionend(end);
4877                                                 result = 1; // Select edit duration or select_region
4878                                         }
4879                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
4880                                                 mwindow->session->drag_edit = edit;
4881                                                 mwindow->session->current_operation = GROUP_TOGGLE;
4882                                                 result = 1;
4883                                         }
4884                                         if( result ) {
4885                                                 rerender = 1;
4886                                                 update_cursor = -1;
4887                                         }
4888                                 }
4889                                 else if( drag_start && track->record ) {
4890                                         mwindow->session->drag_edit = edit;
4891                                         mwindow->session->drag_origin_x = cursor_x;
4892                                         mwindow->session->drag_origin_y = cursor_y;
4893 // Where the drag started, so we know relative position inside the edit later
4894                                         mwindow->session->drag_position =
4895                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4896                                         drag_start = 0; // if unselected "fast" drag
4897                                         if( !edit->silence() && !edit->is_selected ) {
4898                                                 mwindow->edl->tracks->clear_selected_edits();
4899                                                 if( ibeam_mode() ) {
4900                                                         double start = edit->track->from_units(edit->startproject);
4901                                                         mwindow->edl->local_session->set_selectionstart(start);
4902                                                         mwindow->edl->local_session->set_selectionend(start);
4903                                                         edit->set_selected(1);
4904                                                 }
4905                                                 else
4906                                                         mwindow->edl->tracks->select_affected_edits(
4907                                                                 edit->track->from_units(edit->startproject),
4908                                                                 edit->track, 1);
4909                                                 drag_start = 1;
4910                                         }
4911 // Construct list of all affected edits
4912                                         if( drag_start || ibeam_mode() ) {
4913                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
4914                                                 if( mwindow->session->drag_edits->size() > 0 ) {
4915                                                         mwindow->session->current_operation = DRAG_EDIT;
4916 // Need to create drag window
4917                                                         int cx, cy;  get_abs_cursor(cx, cy);
4918                                                         gui->drag_popup = new BC_DragWindow(gui,
4919                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
4920                                                         result = 1;
4921                                                 }
4922                                                 else {
4923                                                         rerender = start_selection(mwindow->session->drag_position);
4924                                                         mwindow->session->current_operation = SELECT_REGION;
4925                                                         update_cursor = 1;
4926                                                 }
4927                                         }
4928                                         else if( edit->is_selected && arrow_mode() ) {
4929                                                 if( mwindow->session->drag_group )
4930                                                         mwindow->session->drag_group->remove_user();
4931                                                 double start_position = 0;
4932                                                 mwindow->session->drag_group =
4933                                                         mwindow->selected_edits_to_clip(0, &start_position,
4934                                                                 &mwindow->session->drag_group_first_track,
4935                                                                 mwindow->edl->session->labels_follow_edits,
4936                                                                 mwindow->edl->session->autos_follow_edits,
4937                                                                 mwindow->edl->session->plugins_follow_edits);
4938                                                 if( mwindow->session->drag_group ) {
4939                                                         mwindow->session->current_operation = DRAG_GROUP;
4940                                                         mwindow->session->drag_group_position = start_position;
4941                                                         mwindow->session->drag_group_edit = edit;
4942                                                         mwindow->session->drag_origin_y = edit_y;
4943                                                         result = 1;
4944                                                 }
4945                                         }
4946                                 }
4947                         }
4948                 }
4949         }
4950         return result;
4951 }
4952
4953
4954 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
4955 {
4956         Track *src = group->tracks->first;
4957         for( Track *track=first_track; track && src; track=track->next ) {
4958                 if( !track->record ) continue;
4959                 if( src->data_type != track->data_type ) return -1;
4960                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
4961                         if( src_edit->silence() ) continue;
4962                         if( edit_intersects(track, src_edit, pos) ) return 0;
4963                 }
4964                 src = src->next;
4965         }
4966         return !src ? 1 : 0;
4967 }
4968
4969 int TrackCanvas::edit_intersects(Track *track, Edit *src_edit, double &pos)
4970 {
4971         if( pos < 0 ) { pos = 0;  return 1; }
4972         int64_t src_start = src_edit->startproject;
4973         int64_t src_end = src_start + src_edit->length;
4974         double new_start = src_edit->track->from_units(src_start) + pos;
4975         double new_end = src_edit->track->from_units(src_end) + pos;
4976         int64_t trk_start = track->to_units(new_start, 1);
4977         int64_t trk_end = track->to_units(new_end, 1);
4978         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4979                 if( edit->is_selected || edit->silence() ) continue;
4980                 int64_t edit_start = edit->startproject;
4981                 if( edit_start >= trk_end ) continue;
4982                 int64_t edit_end = edit_start + edit->length;
4983                 if( trk_start >= edit_end ) continue;
4984                 int64_t lt_dist = labs(trk_end - edit_start);
4985                 int64_t rt_dist = labs(edit_end - trk_start);
4986                 int64_t position;
4987                 if( lt_dist < rt_dist ) {
4988                         position = edit_start;
4989                         lt_dist = abs(trk_start - edit_start);
4990                         rt_dist = abs(trk_end - edit_start);
4991                         if( lt_dist > rt_dist )
4992                                 position -= src_end;
4993                 }
4994                 else {
4995                         position = edit_end;
4996                         lt_dist = abs(trk_start - edit_end);
4997                         rt_dist = abs(trk_end - edit_end);
4998                         if( lt_dist > rt_dist )
4999                                 position -= src_end;
5000                 }
5001                 pos = edit->track->from_units(position);
5002                 return 1;
5003         }
5004         return 0;
5005 }
5006
5007 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5008 {
5009         return 0;
5010 }
5011
5012 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5013         int button_press, int &redraw, int &rerender)
5014 {
5015         Plugin *plugin = 0;
5016         int result = 0;
5017         int done = 0;
5018         int64_t x, y, w, h;
5019         Track *track = 0;
5020
5021         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5022                 if(!track->expand_view) continue;
5023
5024                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5025                         // first check if plugins are visible at all
5026                         if (!track->expand_view)
5027                                 continue;
5028                         PluginSet *plugin_set = track->plugin_set.values[i];
5029                         for(plugin = (Plugin*)plugin_set->first;
5030                                 plugin && !done;
5031                                 plugin = (Plugin*)plugin->next) {
5032                                 plugin_dimensions(plugin, x, y, w, h);
5033                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5034                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5035                                         if(cursor_x >= x && cursor_x < x + w &&
5036                                                 cursor_y >= y && cursor_y < y + h) {
5037                                                 done = 1;
5038                                                 break;
5039                                         }
5040                                 }
5041                         }
5042                 }
5043         }
5044
5045         if(plugin) {
5046 // Start plugin popup
5047                 if(button_press) {
5048                         if(get_buttonpress() == RIGHT_BUTTON ) {
5049                                 gui->plugin_menu->update(plugin);
5050                                 gui->plugin_menu->activate_menu();
5051                                 result = 1;
5052                         }
5053                         else if (get_double_click() && !drag_start) {
5054 // Select range of plugin on doubleclick over plugin
5055                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5056                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5057                                         plugin->track->from_units(plugin->length));
5058                                 if(mwindow->edl->session->cursor_on_frames) {
5059                                         mwindow->edl->local_session->set_selectionstart(
5060                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5061                                         mwindow->edl->local_session->set_selectionend(
5062                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5063                                 }
5064                                 rerender = 1;
5065                                 redraw = 1;
5066                                 result = 1;
5067                         }
5068                 }
5069                 else
5070 // Move plugin
5071                 if( drag_start && plugin->track->record && !plugin->silence() ) {
5072                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5073                                 if( plugin->track->data_type == TRACK_AUDIO )
5074                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5075                                 else if( plugin->track->data_type == TRACK_VIDEO )
5076                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5077
5078                                 mwindow->session->drag_plugin = plugin;
5079                                 mwindow->session->drag_origin_x = cursor_x;
5080                                 mwindow->session->drag_origin_y = cursor_y;
5081                                 // Where the drag started, so we know relative position inside the edit later
5082                                 mwindow->session->drag_position =
5083                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5084                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5085 // Create picon
5086                                 switch(plugin->plugin_type) {
5087                                 case PLUGIN_STANDALONE: {
5088                                         PluginServer *server =
5089                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5090                                         if( !server ) break;
5091                                         VFrame *frame = server->picon;
5092                                         if(!frame) {
5093                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5094                                                         frame = mwindow->theme->get_image("aeffect_icon");
5095                                                 }
5096                                                 else {
5097                                                         frame = mwindow->theme->get_image("veffect_icon");
5098                                                 }
5099                                         }
5100                                         int cx, cy;
5101                                         get_abs_cursor(cx, cy);
5102                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5103                                                 break; }
5104
5105                                 case PLUGIN_SHAREDPLUGIN:
5106                                 case PLUGIN_SHAREDMODULE: {
5107                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5108                                         int cx, cy;
5109                                         get_abs_cursor(cx, cy);
5110                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5111                                         break; }
5112                                 }
5113
5114                                 result = 1;
5115                         }
5116                 }
5117         }
5118
5119         return result;
5120 }
5121
5122 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5123         int button_press, int &new_cursor, int &update_cursor)
5124 {
5125         Transition *transition = 0;
5126         int result = 0;
5127         int64_t x, y, w, h;
5128
5129
5130         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5131                 if( !track->show_transitions() ) continue;
5132
5133                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5134                         if( edit->transition ) {
5135                                 edit_dimensions(edit, x, y, w, h);
5136                                 get_transition_coords(edit, x, y, w, h);
5137
5138                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5139                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5140                                         if( cursor_x >= x && cursor_x < x + w &&
5141                                                 cursor_y >= y && cursor_y < y + h ) {
5142                                                 transition = edit->transition;
5143                                                 result = 1;
5144                                                 break;
5145                                         }
5146                                 }
5147                         }
5148                 }
5149         }
5150
5151         update_cursor = 1;
5152         if(transition) {
5153                 if(!button_press) {
5154                         new_cursor = UPRIGHT_ARROW_CURSOR;
5155                 }
5156                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5157                         gui->transition_menu->update(transition);
5158                         gui->transition_menu->activate_menu();
5159                 }
5160         }
5161
5162         return result;
5163 }
5164
5165 int TrackCanvas::button_press_event()
5166 {
5167         int result = 0;
5168         int cursor_x, cursor_y;
5169         int new_cursor;
5170
5171         cursor_x = get_cursor_x();
5172         cursor_y = get_cursor_y();
5173         mwindow->session->trim_edits = 0;
5174
5175         if(is_event_win() && cursor_inside()) {
5176 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5177
5178                 result = 1;
5179                 if(!active) {
5180                         activate();
5181                 }
5182
5183                 if( get_buttonpress() == LEFT_BUTTON ) {
5184                         gui->stop_transport("TrackCanvas::button_press_event");
5185                 }
5186
5187                 int update_overlay = 0, update_cursor = 0, rerender = 0;
5188
5189                 if(get_buttonpress() == WHEEL_UP) {
5190                         if(shift_down())
5191                                 mwindow->expand_sample();
5192                         else if(ctrl_down())
5193                                 mwindow->move_left(get_w()/ 10);
5194                         else
5195                                 mwindow->move_up(get_h() / 10);
5196                 }
5197                 else if(get_buttonpress() == WHEEL_DOWN) {
5198                         if(shift_down())
5199                                 mwindow->zoom_in_sample();
5200                         else if(ctrl_down())
5201                                 mwindow->move_right(get_w() / 10);
5202                         else
5203                                 mwindow->move_down(get_h() / 10);
5204                 }
5205                 else if(get_buttonpress() == 6) {
5206                         if(ctrl_down())
5207                                 mwindow->move_left(get_w());
5208                         else if(alt_down())
5209                                 mwindow->move_left(get_w() / 20);
5210                         else
5211                                 mwindow->move_left(get_w() / 5);
5212                 }
5213                 else if(get_buttonpress() == 7) {
5214                         if(ctrl_down())
5215                                 mwindow->move_right(get_w());
5216                         else if(alt_down())
5217                                 mwindow->move_right(get_w() / 20);
5218                         else
5219                                 mwindow->move_right(get_w() / 5);
5220                 }
5221                 else {
5222                         if( arrow_mode() ) do {
5223 // Test handles and resource boundaries and highlight a track
5224                                 if( do_transitions(cursor_x, cursor_y,
5225                                                 1, new_cursor, update_cursor) ) break;
5226
5227                                 if( do_keyframes(cursor_x, cursor_y,
5228                                         0, get_buttonpress(), new_cursor,
5229                                         update_cursor, rerender) ) break;
5230 // Test edit boundaries
5231                                 if( do_edit_handles(cursor_x, cursor_y,
5232                                         1, rerender, update_overlay, new_cursor,
5233                                         update_cursor) ) break;
5234 // Test plugin boundaries
5235                                 if( do_plugin_handles(cursor_x, cursor_y,
5236                                         1, rerender, update_overlay, new_cursor,
5237                                         update_cursor) ) break;
5238
5239                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5240                                         update_overlay, rerender, new_cursor,
5241                                         update_cursor) ) break;
5242
5243                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5244                                         update_cursor, rerender) ) break;
5245
5246                                 if( test_resources(cursor_x, cursor_y) ) break;
5247
5248                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5249
5250                                 result = 0;
5251                         } while(0);
5252                         else if( ibeam_mode() ) do {
5253 // Test handles only and select a region
5254                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5255 //printf("TrackCanvas::button_press_event %d\n", position);
5256
5257                                 if( do_transitions(cursor_x, cursor_y,
5258                                                 1, new_cursor, update_cursor)) break;
5259                                 if(do_keyframes(cursor_x, cursor_y,
5260                                         0, get_buttonpress(), new_cursor,
5261                                         update_cursor, rerender)) {
5262                                         update_overlay = 1;
5263                                         break;
5264                                 }
5265 // Test edit boundaries
5266                                 if( do_edit_handles(cursor_x, cursor_y,
5267                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5268 // Test plugin boundaries
5269                                 if( do_plugin_handles(cursor_x, cursor_y,
5270                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5271
5272                                 if( do_edits(cursor_x, cursor_y,
5273                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5274
5275                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5276
5277                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5278 // Highlight selection
5279                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5280                                 rerender = start_selection(position);
5281                                 mwindow->session->current_operation = SELECT_REGION;
5282                                 update_cursor = 1;
5283                         } while(0);
5284                 }
5285
5286                 if( rerender ) {
5287                         gui->unlock_window();
5288                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5289                         gui->lock_window("TrackCanvas::button_press_event 2");
5290 // Update faders
5291                         mwindow->update_plugin_guis();
5292                         gui->update_patchbay();
5293                 }
5294
5295                 if( update_overlay ) {
5296                         gui->draw_overlays(1);
5297                 }
5298                 if( update_cursor < 0 ) {
5299 // double_click edit
5300                         gui->swindow->update_selection();
5301                         gui->draw_canvas(0, 0);
5302                 }
5303                 if( update_cursor ) {
5304                         gui->update_timebar(0);
5305                         gui->hide_cursor(0);
5306                         gui->show_cursor(1);
5307                         gui->zoombar->update();
5308                         gui->flash_canvas(1);
5309                 }
5310         }
5311
5312         return result;
5313 }
5314
5315 int TrackCanvas::start_selection(double position)
5316 {
5317         int rerender = 0;
5318         position = mwindow->edl->align_to_frame(position, 1);
5319
5320
5321 // Extend a border
5322         if(shift_down())
5323         {
5324                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5325                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5326
5327                 if(position < midpoint)
5328                 {
5329                         mwindow->edl->local_session->set_selectionstart(position);
5330                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5331 // Que the CWindow
5332                         rerender = 1;
5333                 }
5334                 else
5335                 {
5336                         mwindow->edl->local_session->set_selectionend(position);
5337                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5338 // Don't que the CWindow for the end
5339                 }
5340         }
5341         else
5342 // Start a new selection
5343         {
5344 //printf("TrackCanvas::start_selection %f\n", position);
5345                 mwindow->edl->local_session->set_selectionstart(position);
5346                 mwindow->edl->local_session->set_selectionend(position);
5347                 selection_midpoint = position;
5348 // Que the CWindow
5349                 rerender = 1;
5350         }
5351
5352         return rerender;
5353 }
5354
5355 void TrackCanvas::end_edithandle_selection()
5356 {
5357         mwindow->modify_edithandles();
5358 }
5359
5360 void TrackCanvas::end_pluginhandle_selection()
5361 {
5362         mwindow->modify_pluginhandles();
5363 }
5364
5365
5366 double TrackCanvas::time_visible()
5367 {
5368         return (double)get_w() *
5369                 mwindow->edl->local_session->zoom_sample /
5370                 mwindow->edl->session->sample_rate;
5371 }
5372
5373
5374 void TrackCanvas::show_message(Auto *current, int show_curve_type, const char *fmt, ...)
5375 {
5376         char string[BCTEXTLEN];
5377         char *cp = string, *ep = cp + sizeof(string)-1;
5378         if( show_curve_type ) {
5379                 cp += snprintf(string, ep-cp, "%-8s ",
5380                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5381         }
5382         char string2[BCTEXTLEN];
5383         Units::totext(string2,
5384                 current->autos->track->from_units(current->position),
5385                 mwindow->edl->session->time_format,
5386                 mwindow->edl->session->sample_rate,
5387                 mwindow->edl->session->frame_rate,
5388                 mwindow->edl->session->frames_per_foot);
5389         cp += snprintf(cp, ep-cp, "%s", string2);
5390         va_list ap;
5391         va_start(ap, fmt);
5392         vsnprintf(cp, ep-cp, fmt, ap);
5393         va_end(ap);
5394         gui->show_message(string);
5395 }
5396
5397 // Patchbay* TrackCanvas::get_patchbay()
5398 // {
5399 //      if(pane->patchbay) return pane->patchbay;
5400 //      if(gui->total_panes() == 2 &&
5401 //              gui->pane[TOP_LEFT_PANE] &&
5402 //              gui->pane[TOP_RIGHT_PANE])
5403 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5404 //      if(gui->total_panes() == 4)
5405 //      {
5406 //              if(pane->number == TOP_RIGHT_PANE)
5407 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5408 //              else
5409 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5410 //      }
5411 //
5412 //      return 0;
5413 // }
5414
5415