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 ) return;
1933         int64_t pixel1 = Units::round(mwindow->session->drag_position *
1934                 mwindow->edl->session->sample_rate /
1935                 mwindow->edl->local_session->zoom_sample -
1936                 mwindow->edl->local_session->view_start[pane->number]);
1937         set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1938         set_inverse();
1939         draw_line(pixel1, 0, pixel1, get_h());
1940         set_opaque();
1941
1942         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 ) return;
1943         if( !mwindow->session->drag_edit ) return;
1944         int group_id = mwindow->session->drag_edit->group_id;
1945         if( !group_id ) return;
1946         int64_t dx, dy, dw, dh;
1947         edit_dimensions(mwindow->session->drag_edit, dx, dy, dw, dh);
1948         int drag_handle = mwindow->session->drag_handle;
1949         int64_t pixel0 = !drag_handle ? dx : dx + dw;
1950         int delta = pixel1 - pixel0;
1951         set_color(LTPURPLE);
1952         set_line_width(3);
1953
1954         for( Track *track=mwindow->edl->tracks->first; track; track=track->next ) {
1955                 Edit *left = 0, *right = 0;
1956                 double start = DBL_MAX, end = DBL_MIN;
1957                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1958                         if( edit->group_id != group_id ) continue;
1959                         double edit_start = edit->track->from_units(edit->startproject);
1960                         if( edit_start < start ) { start = edit_start;  left = edit; }
1961                         double edit_end = edit->track->from_units(edit->startproject+edit->length);
1962                         if( edit_end > end ) { end = edit_end;  right = edit; }
1963                 }
1964                 Edit *edit = !drag_handle ? left : right;
1965                 if( !edit ) continue;
1966                 Indexable *idxbl = edit->asset;
1967                 if( !idxbl ) idxbl = edit->nested_edl;
1968                 int can_drag = idxbl ? 1 : 0;
1969                 if( drag_handle ) {
1970                         int64_t source_len = !idxbl ? -1 :
1971                                 edit->track->data_type == TRACK_AUDIO ?
1972                                         idxbl->get_audio_samples() :
1973                                 edit->track->data_type == TRACK_VIDEO ?
1974                                         idxbl->get_video_frames() : -1;
1975                         if( edit->startsource + edit->length >= source_len )
1976                                 can_drag = 0;
1977                 }
1978                 else if( !edit->startsource )
1979                         can_drag = 0;
1980                 int64_t x, y, w, h;
1981                 edit_dimensions(edit, x, y, w, h);
1982                 if( y+h < 0 || y >= get_h() ) continue;
1983                 int edge_x = !drag_handle ? x : x + w;
1984                 int edge_y = y + h/2, k = 10;
1985                 if( edge_x >= 0 && edge_x < get_w() ) {
1986                         if( !can_drag ) {
1987                                 draw_line(edge_x-k,edge_y-k, edge_x+k,edge_y+k);
1988                                 draw_line(edge_x-k,edge_y+k, edge_x+k,edge_y-k);
1989                         }
1990                         else if( !drag_handle ) {
1991                                 draw_line(edge_x+k,edge_y-k, edge_x,edge_y);
1992                                 draw_line(edge_x+k,edge_y+k, edge_x,edge_y);
1993                         }
1994                         else {
1995                                 draw_line(edge_x,edge_y, edge_x-k,edge_y-k);
1996                                 draw_line(edge_x,edge_y, edge_x-k,edge_y+k);
1997                         }
1998                 }
1999                 edge_x += delta;
2000                 if( edge_x >= 0 && edge_x < get_w() ) {
2001                         draw_line(edge_x, y, edge_x, y+h);
2002                 }
2003         }
2004         set_line_width(1);
2005 }
2006
2007
2008 void TrackCanvas::draw_transitions()
2009 {
2010         int64_t x, y, w, h;
2011
2012         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2013                 if( !track->show_transitions() ) continue;
2014
2015                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2016                         if(!edit->transition) continue;
2017                         edit_dimensions(edit, x, y, w, h);
2018                         int strip_x = x, edit_y = y;
2019                         get_transition_coords(edit, x, y, w, h);
2020                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2021                         if( track->show_assets() && track->show_titles() )
2022                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2023                         if( strip_y < edit_y ) strip_y = edit_y;
2024
2025                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2026                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2027                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2028                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2029                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2030                                                 track->data_type);
2031                                 if( !server ) continue;
2032                                 VFrame *picon = server->get_picon();
2033                                 if( !picon ) continue;
2034                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2035                                 int track_h = edit->track->vertical_span(mwindow->theme);
2036                                 if( picon_h > track_h ) picon_h = track_h;
2037                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2038                         }
2039                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2040                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2041                                 int x = strip_x, w = strip_w;
2042                                 if( x < 0 ) {  w -= -x;  x = 0; }
2043                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2044
2045                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2046                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2047                         }
2048                 }
2049         }
2050 }
2051
2052 void TrackCanvas::draw_loop_points()
2053 {
2054 //printf("TrackCanvas::draw_loop_points 1\n");
2055         if(mwindow->edl->local_session->loop_playback)
2056         {
2057 //printf("TrackCanvas::draw_loop_points 2\n");
2058                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2059                         mwindow->edl->session->sample_rate /
2060                         mwindow->edl->local_session->zoom_sample -
2061                         mwindow->edl->local_session->view_start[pane->number]);
2062 //printf("TrackCanvas::draw_loop_points 3\n");
2063
2064                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2065                 {
2066                         set_color(GREEN);
2067                         draw_line(x, 0, x, get_h());
2068                 }
2069 //printf("TrackCanvas::draw_loop_points 4\n");
2070
2071                 x = Units::round(mwindow->edl->local_session->loop_end *
2072                         mwindow->edl->session->sample_rate /
2073                         mwindow->edl->local_session->zoom_sample -
2074                         mwindow->edl->local_session->view_start[pane->number]);
2075 //printf("TrackCanvas::draw_loop_points 5\n");
2076
2077                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2078                 {
2079                         set_color(GREEN);
2080                         draw_line(x, 0, x, get_h());
2081                 }
2082 //printf("TrackCanvas::draw_loop_points 6\n");
2083         }
2084 //printf("TrackCanvas::draw_loop_points 7\n");
2085 }
2086
2087 void TrackCanvas::draw_brender_range()
2088 {
2089         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2090         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2091         if( mwindow->edl->session->brender_end > 0 )
2092         {
2093                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2094                         mwindow->edl->session->sample_rate /
2095                         mwindow->edl->local_session->zoom_sample -
2096                         mwindow->edl->local_session->view_start[pane->number]);
2097                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2098                 {
2099                         set_color(RED);
2100                         draw_line(x1, 0, x1, get_h());
2101                 }
2102                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2103                         mwindow->edl->session->sample_rate /
2104                         mwindow->edl->local_session->zoom_sample -
2105                         mwindow->edl->local_session->view_start[pane->number]);
2106
2107                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2108                 {
2109                         set_color(RED);
2110                         draw_line(x2, 0, x2, get_h());
2111                 }
2112         }
2113 }
2114
2115 // The operations which correspond to each automation type
2116 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2117 {
2118         DRAG_MUTE,
2119         DRAG_CAMERA_X,
2120         DRAG_CAMERA_Y,
2121         DRAG_CAMERA_Z,
2122         DRAG_PROJECTOR_X,
2123         DRAG_PROJECTOR_Y,
2124         DRAG_PROJECTOR_Z,
2125         DRAG_FADE,
2126         DRAG_PAN,
2127         DRAG_MODE,
2128         DRAG_MASK,
2129         DRAG_SPEED
2130 };
2131
2132 // The buttonpress operations, so nothing changes unless the mouse moves
2133 // a certain amount.  This allows the keyframe to be used to position the
2134 // insertion point without moving itself.
2135 static int pre_auto_operations[AUTOMATION_TOTAL] =
2136 {
2137         DRAG_MUTE,
2138         DRAG_CAMERA_X,
2139         DRAG_CAMERA_Y,
2140         DRAG_CAMERA_Z,
2141         DRAG_PROJECTOR_X,
2142         DRAG_PROJECTOR_Y,
2143         DRAG_PROJECTOR_Z,
2144         DRAG_FADE,
2145         DRAG_PAN_PRE,
2146         DRAG_MODE_PRE,
2147         DRAG_MASK_PRE,
2148         DRAG_SPEED
2149 };
2150
2151
2152 int TrackCanvas::do_keyframes(int cursor_x,
2153         int cursor_y,
2154         int draw,
2155         int buttonpress,
2156         int &new_cursor,
2157         int &update_cursor,
2158         int &rerender)
2159 {
2160 // Note: button 3 (right mouse button) is not eaten to allow
2161 // track context menu to appear
2162         int result = 0;
2163         EDLSession *session = mwindow->edl->session;
2164
2165
2166
2167         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2168         {
2169                 0, 0, 0, 0, 0, 0, 0, 0,
2170                 pankeyframe_pixmap,
2171                 modekeyframe_pixmap,
2172                 maskkeyframe_pixmap,
2173         };
2174
2175
2176
2177         for(Track *track = mwindow->edl->tracks->first;
2178                 track && !result;
2179                 track = track->next) {
2180                 Auto *auto_keyframe = 0;
2181                 Automation *automation = track->automation;
2182
2183
2184 // Handle keyframes in reverse drawing order if a button press
2185                 int start = 0;
2186                 int end = AUTOMATION_TOTAL;
2187                 int step = 1;
2188                 if(buttonpress)
2189                 {
2190                         start = AUTOMATION_TOTAL - 1;
2191                         end = -1;
2192                         step = -1;
2193                 }
2194                 for(int i = start; i != end && !result; i += step)
2195                 {
2196 // Event not trapped and automation visible
2197                         Autos *autos = automation->autos[i];
2198                         if(!result && session->auto_conf->autos[i] && autos) {
2199                                 switch(i) {
2200                                 case AUTOMATION_MODE:
2201                                 case AUTOMATION_PAN:
2202                                 case AUTOMATION_MASK:
2203                                         result = do_autos(track, automation->autos[i],
2204                                                 cursor_x, cursor_y, draw,
2205                                                 buttonpress, auto_pixmaps[i],
2206                                                 auto_keyframe, rerender);
2207                                                 break;
2208
2209                                 default: {
2210                                         switch(autos->get_type()) {
2211                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2212                                                 Automation automation(0, track);
2213                                                 int grouptype = automation.autogrouptype(i, track);
2214                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2215                                                         mwindow->speed_before();
2216                                                 }
2217
2218                                                 if(draw) // Do dropshadow
2219                                                         result = do_float_autos(track, autos,
2220                                                                 cursor_x, cursor_y, draw,
2221                                                                 buttonpress, 1, 1, MDGREY,
2222                                                                 auto_keyframe, grouptype);
2223                                                 result = do_float_autos(track, autos,
2224                                                         cursor_x, cursor_y, draw, buttonpress,
2225                                                         0, 0, GWindowGUI::auto_colors[i],
2226                                                         auto_keyframe, grouptype);
2227
2228                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2229                                                         mwindow->speed_after(-1);
2230                                                 if( result && buttonpress ) {
2231                                                         int color = GWindowGUI::auto_colors[i];
2232                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2233                                                 }
2234                                                 break; }
2235
2236                                         case Autos::AUTOMATION_TYPE_INT: {
2237                                                 if(draw) // Do dropshadow
2238                                                         result = do_int_autos(track, autos,
2239                                                                 cursor_x, cursor_y, draw,
2240                                                                 buttonpress, 1, 1, MDGREY,
2241                                                                 auto_keyframe);
2242                                                 result = do_int_autos(track, autos,
2243                                                         cursor_x, cursor_y, draw, buttonpress,
2244                                                         0, 0, GWindowGUI::auto_colors[i],
2245                                                         auto_keyframe);
2246                                                 break; }
2247                                         }
2248                                         break; }
2249                                 }
2250
2251                                 if(result)
2252                                 {
2253                                         if(mwindow->session->current_operation == auto_operations[i])
2254                                                 rerender = 1;
2255
2256 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2257 // __LINE__,
2258 // mwindow->session->current_operation,
2259 // auto_operations[i]);
2260                                         if(buttonpress)
2261                                         {
2262                                                 if (buttonpress == 2 && auto_keyframe )
2263                                                 {
2264                                                         double position = track->from_units(auto_keyframe->position);
2265                                                         mwindow->edl->local_session->set_selectionstart(position);
2266                                                         mwindow->edl->local_session->set_selectionend(position);
2267                                                 }
2268                                                 if (buttonpress != 3)
2269                                                 {
2270                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2271                                                                 fill_ganged_autos(get_double_click(), 0, track,
2272                                                                         (FloatAuto*)mwindow->session->drag_auto);
2273                                                         mwindow->session->current_operation = pre_auto_operations[i];
2274                                                         update_drag_caption();
2275                                                         rerender = 1;
2276                                                 }
2277                                                 else if( auto_keyframe )
2278                                                 {
2279                                                         gui->keyframe_menu->update(automation,
2280                                                                 autos,
2281                                                                 auto_keyframe);
2282                                                         gui->keyframe_menu->activate_menu();
2283                                                         rerender = 1; // the position changes
2284                                                 }
2285                                                 else if( autos )
2286                                                 {
2287                                                         gui->keyframe_hide->update(autos);
2288                                                         gui->keyframe_hide->activate_menu();
2289                                                         rerender = 1; // the position changes
2290                                                 }
2291                                                 if(buttonpress == 1 && ctrl_down() &&
2292                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2293                                                         rerender = 1; // special case: curve mode changed
2294                                         }
2295                                 }
2296                         }
2297                 }
2298
2299                 if(!result && session->auto_conf->plugins) {
2300                         Plugin *plugin;
2301                         KeyFrame *keyframe;
2302                         result = do_plugin_autos(track, cursor_x, cursor_y,
2303                                 draw, buttonpress, plugin, keyframe);
2304                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2305                                 rerender = 1;
2306                         }
2307                         if(result && (buttonpress == 1)) {
2308                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2309                                 update_drag_caption();
2310                                 rerender = 1;
2311                         }
2312                         else if (result && (buttonpress == 3)) {
2313                                 gui->keyframe_menu->update(plugin, keyframe);
2314                                 gui->keyframe_menu->activate_menu();
2315                                 rerender = 1; // the position changes
2316                         }
2317                 }
2318         }
2319
2320 // Final pass to trap event
2321         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2322                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2323                         mwindow->session->current_operation == auto_operations[i]) {
2324                         result = 1;
2325                         break;
2326                 }
2327         }
2328
2329         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2330                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2331                 result = 1;
2332         }
2333
2334         update_cursor = 1;
2335         if(result) {
2336                 new_cursor = UPRIGHT_ARROW_CURSOR;
2337         }
2338
2339         return result;
2340 }
2341
2342 void TrackCanvas::draw_keyframe_reticle()
2343 {
2344         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2345         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2346
2347         int current_op = mwindow->session->current_operation, dragging = 0;
2348         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2349                 if( current_op == auto_operations[i] ) dragging = 1;
2350         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2351
2352         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2353                 mwindow->session->drag_auto->autos->autoidx : -1;
2354
2355         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2356             keyframe_hairline == HAIRLINE_DRAGGING ) {
2357                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2358                 return;
2359         }
2360
2361         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2362             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2363                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2364                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2365                         Automation *automation = track->automation;
2366                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2367                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2368                                 // automation visible
2369                                 Autos *autos = automation->autos[i];
2370                                 if( !autos ) continue;
2371                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2372                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2373                                      auto_keyframe = auto_keyframe->next ) {
2374                                         draw_hairline(auto_keyframe, BLUE, show);
2375                                 }
2376                         }
2377                 }
2378
2379                 if( dragging )
2380                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2381         }
2382 }
2383
2384 void TrackCanvas::draw_auto(Auto *current,
2385         int x,
2386         int y,
2387         int center_pixel,
2388         int zoom_track)
2389 {
2390         int x1, y1, x2, y2;
2391
2392         x1 = x - HANDLE_W / 2;
2393         x2 = x + HANDLE_W / 2;
2394         y1 = center_pixel + y - HANDLE_W / 2;
2395         y2 = center_pixel + y + HANDLE_W / 2;
2396
2397         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2398         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2399
2400         draw_box(x1, y1, x2 - x1, y2 - y1);
2401 }
2402
2403
2404 // This draws lines for bezier in & out controls
2405 void TrackCanvas::draw_cropped_line(int x1,
2406         int y1,
2407         int x2,
2408         int y2,
2409         int min_y,
2410         int max_y)
2411 {
2412
2413
2414 // Don't care about x since it is clipped by the window.
2415 // Put y coords in ascending order
2416         if(y2 < y1) {
2417                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2418                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2419         }
2420
2421
2422
2423         double slope = (double)(x2 - x1) / (y2 - y1);
2424 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2425         if(y1 < min_y) {
2426                 x1 = (int)(x1 + (min_y - y1) * slope);
2427                 y1 = min_y;
2428         }
2429         else if(y1 >= max_y) {
2430                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2431                 y1 = max_y - 1;
2432         }
2433
2434         if(y2 >= max_y) {
2435                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2436                 y2 = max_y - 1;
2437         }
2438         else if(y2 < min_y) {
2439                 x2 = (int)(x2 + (min_y - y2) * slope);
2440                 y1 = min_y;
2441         }
2442
2443
2444 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2445         if( y1 >= min_y && y1 < max_y &&
2446             y2 >= min_y && y2 < max_y )
2447                 draw_line(x1, y1, x2, y2);
2448 }
2449
2450
2451 void TrackCanvas::draw_floatauto(FloatAuto *current,
2452         int x,
2453         int y,
2454         int in_x,
2455         int in_y,
2456         int out_x,
2457         int out_y,
2458         int center_pixel,
2459         int zoom_track,
2460         int color)
2461 {
2462         int x1 = x - HANDLE_W / 2; // Center
2463         int x2 = x + HANDLE_W / 2;
2464         int y1 = center_pixel + y - HANDLE_H / 2;
2465         int y2 = center_pixel + y + HANDLE_H / 2;
2466         int ymin = center_pixel - zoom_track / 2;
2467         int ymax = center_pixel + zoom_track / 2;
2468         CLAMP(y1, ymin, ymax);
2469         CLAMP(y2, ymin, ymax);
2470
2471         if(y2 - 1 > y1)
2472         {
2473                 set_color(BLACK);
2474                 draw_box(x1 + 1, y1 + 1, x2 - x1, y2 - y1);
2475                 set_color(color);
2476                 draw_box(x1, y1, x2 - x1, y2 - y1);
2477         }
2478
2479 // show bezier control points (only) if this
2480 // floatauto doesn't adjust it's tangents automatically
2481         if(current->curve_mode != FloatAuto::FREE &&
2482            current->curve_mode != FloatAuto::TFREE)
2483                 return;
2484
2485         if(in_x != x)
2486                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2487         if(out_x != x)
2488                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2489 }
2490
2491 inline int quantize(float f) { return (int)floor(f + 0.5); }
2492
2493 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2494         int x, int y, int cp_x, int cp_y, int center_pixel,
2495         int zoom_track, int color)
2496 // draw the tangent and a handle for given bézier ctrl point
2497 {
2498         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2499
2500         float slope = (float)(cp_y - y)/(cp_x - x);
2501         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2502         if(slope != 0)
2503                 cp_x = x + quantize((cp_y - y) / slope);
2504
2505         y    += center_pixel;
2506         cp_y += center_pixel;
2507
2508         // drawing the tangent as a dashed line...
2509         int const dash = HANDLE_W;
2510         int const gap  = HANDLE_W / 2;
2511         float sx = 3 * (cp_x - x) / 4.;
2512         float ex = 0;
2513
2514         // q is the x displacement for a unit line of slope
2515         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2516
2517         float dist = 1/q * sx;
2518         if( dist > dash )
2519                 ex = sx - q * dash;
2520
2521         set_color(color);
2522         do {
2523                 float sy = slope * sx, ey = slope * ex;
2524                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2525                 sx = ex - q * gap;
2526                 ex = sx - q * dash;
2527         } while(q*ex > 0);
2528
2529         if(handle_visible)
2530         {
2531                 int r = HANDLE_W / 2;
2532                 int cp_x1 = cp_x - r;
2533                 int cp_y1 = cp_y - r;
2534                 set_color(BLACK);
2535                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2536                 set_color(color);
2537                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2538         }
2539 }
2540
2541
2542 int TrackCanvas::test_auto(Auto *current,
2543         int x, int y, int center_pixel, int zoom_track,
2544         int cursor_x, int cursor_y, int buttonpress)
2545 {
2546         int x1, y1, x2, y2;
2547         int result = 0;
2548
2549         x1 = x - HANDLE_W / 2;
2550         x2 = x + HANDLE_W / 2;
2551         y1 = center_pixel + y - HANDLE_H / 2;
2552         y2 = center_pixel + y + HANDLE_H / 2;
2553         int ymin = center_pixel - zoom_track / 2;
2554         int ymax = center_pixel + zoom_track / 2;
2555         CLAMP(y1, ymin, ymax);
2556         CLAMP(y2, ymin, ymax);
2557
2558         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2559         {
2560                 if(buttonpress && buttonpress != 3)
2561                 {
2562                         mwindow->session->drag_auto = current;
2563                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2564                         // Toggle Autos don't respond to vertical zoom, they always show up
2565                         // with "on" == 100% == line on top
2566                         mwindow->session->drag_start_position = current->position;
2567                         mwindow->session->drag_origin_x = cursor_x;
2568                         mwindow->session->drag_origin_y = cursor_y;
2569                 }
2570                 result = 1;
2571         }
2572
2573         if(buttonpress && buttonpress != 3 && result)
2574         {
2575 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2576                 mwindow->undo->update_undo_before();
2577         }
2578
2579         return result;
2580 }
2581
2582 // some Helpers for test_floatauto(..)
2583 // and for dragging the tangents/ctrl points
2584 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2585         float cursor_x, float cursor_y)
2586 {
2587 // Control point switched off?
2588         if( x0 == ctrl_x ) return 0.0;
2589         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2590         double x = cursor_x-x0, y = cursor_y-y0;
2591 // wrong side of ctrl handle
2592         if( x*x1 < 0 ) return 0.0;
2593 // outside handle radius
2594         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2595         double xx1 = x1*x1, yy1 = y1*y1;
2596         double xx = x*x, yy = y*y;
2597 // distance squared from cursor to cursor projected to line from ctrl to handle
2598 //   along a line perpendicular to line from ctrl to handle (closest approach)
2599 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2600         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2601         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2602 }
2603
2604
2605 inline
2606 float levered_position(float position, float ref_pos)
2607 {
2608         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2609                 return 0.0;
2610         return ref_pos / position;
2611 }
2612
2613
2614 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2615 // transforms automation value into current display coords,
2616 // dependant on current automation display range for the given kind of automation
2617 {
2618         if(!mwindow || !mwindow->edl) return 0;
2619         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2620         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2621         float automation_range = automation_max - automation_min;
2622         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2623                 return 0;
2624         return (auto_value - automation_min) / automation_range;
2625 }
2626
2627
2628
2629 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2630         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2631         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2632 {
2633         int result = 0;
2634
2635         int x1 = x - HANDLE_W / 2;
2636         int x2 = x + HANDLE_W / 2;
2637         int y1 = center_pixel + y - HANDLE_W / 2;
2638         int y2 = center_pixel + y + HANDLE_W / 2;
2639         int ymin = center_pixel - zoom_track / 2;
2640         int ymax = center_pixel + zoom_track / 2;
2641         CLAMP(y1, ymin, ymax);
2642         CLAMP(y2, ymin, ymax);
2643
2644         int in_x1 = in_x - HANDLE_W / 2;
2645         int in_x2 = in_x + HANDLE_W / 2;
2646         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2647         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2648         CLAMP(in_y1, ymin, ymax);
2649         CLAMP(in_y2, ymin, ymax);
2650
2651         int out_x1 = out_x - HANDLE_W / 2;
2652         int out_x2 = out_x + HANDLE_W / 2;
2653         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2654         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2655         CLAMP(out_y1, ymin, ymax);
2656         CLAMP(out_y2, ymin, ymax);
2657
2658
2659 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2660 // buttonpress could be the start of a drag operation
2661 #define INIT_DRAG(POS,VAL) \
2662                 mwindow->session->drag_auto = current;      \
2663                 mwindow->session->drag_origin_x = cursor_x;  \
2664                 mwindow->session->drag_origin_y = cursor_y;   \
2665                 mwindow->session->drag_start_position = (POS); \
2666                 mwindow->session->drag_start_percentage = (VAL);
2667
2668 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2669
2670
2671 // without modifier we are manipulating the automation node
2672 // with ALT it's about dragging only the value of the node
2673 // with SHIFT the value snaps to the value of neighbouring nodes
2674 // CTRL indicates we are rather manipulating the tangent(s) of the node
2675
2676         if(!ctrl_down())
2677         {
2678                 if( WITHIN(x1,x2,y1,y2))
2679                 {       // cursor hits node
2680                         result = 1;
2681
2682                         if(buttonpress && (buttonpress != 3))
2683                         {
2684                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2685                                 mwindow->session->drag_handle = 0;
2686                 }       }
2687         }
2688         else // ctrl_down()
2689         {
2690                 if( WITHIN(x1,x2,y1,y2))
2691                 {
2692                         result = 1;
2693                         if(buttonpress && (buttonpress != 3))
2694                         {
2695                                 // could be ctrl-click or ctrl-drag
2696                                 // click would cycle through tangent modes
2697                                 ((FloatAuto*)current)->toggle_curve_mode();
2698
2699                                 // drag will start dragging the tangent, if applicable
2700                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2701                                 mwindow->session->drag_handle = 0;
2702                         }
2703                 }
2704
2705                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2706
2707 // Test in control
2708                 if( in_x != x && current->position > 0 &&
2709                         (FloatAuto::FREE == current->curve_mode ||
2710                          FloatAuto::TFREE == current->curve_mode))
2711 // act on in control handle only if
2712 // tangent is significant and is editable (not automatically choosen)
2713                 {
2714                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2715  // either cursor in ctrl-point handle or cursor on tangent line
2716                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2717                                 result = 1;
2718                                 if(buttonpress && (buttonpress != 3)) {
2719                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2720 //                                      lever = 1.0;
2721                                         mwindow->session->drag_handle = 1;
2722                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2723                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2724                                                   value_to_percentage(new_invalue, autogrouptype))
2725                                 }
2726                         }
2727                 }
2728
2729 // Test out control
2730                 if(out_x != x &&
2731                         (FloatAuto::FREE == current->curve_mode ||
2732                          FloatAuto::TFREE == current->curve_mode))
2733 // act on out control only if tangent is significant and is editable
2734                 {
2735                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2736                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2737                                 result = 1;
2738                                 if(buttonpress && (buttonpress != 3)) {
2739                                         if(lever == 0.0) lever=1.0;
2740 //                                      lever = 1.0;
2741                                         mwindow->session->drag_handle = 2;
2742                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2743                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2744                                                   value_to_percentage(new_outvalue, autogrouptype))
2745                                 }
2746                         }
2747                 }
2748         } // end ctrl_down()
2749
2750 #undef WITHIN
2751 #undef INIT_DRAG
2752
2753 // if(buttonpress)
2754 // 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",
2755 // mwindow->session->drag_handle,
2756 // ctrl_down(),
2757 // cursor_x,
2758 // cursor_y,
2759 // x1, x2, y1, y2);
2760         if(buttonpress && (buttonpress != 3) && result)
2761         {
2762                 mwindow->undo->update_undo_before();
2763         }
2764
2765         return result;
2766 }
2767
2768
2769 // Get the float value & y for position x on the canvas
2770 #define X_TO_FLOATLINE(x) \
2771         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2772         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2773 /* Call by reference fails for some reason here */ \
2774         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2775         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2776         double position = unit_start + x * zoom_units; \
2777         double value = 0; \
2778         if(position2 > position1) \
2779         { \
2780                 value = value1 + \
2781                         (value2 - value1) * \
2782                         (position - position1) / \
2783                         (position2 - position1); \
2784         } \
2785         else \
2786         { \
2787                 value = value1; \
2788         } \
2789         AUTOMATIONCLAMPS(value, autogrouptype); \
2790         int y = center_pixel + \
2791                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2792
2793
2794 void TrackCanvas::draw_floatline(int center_pixel,
2795         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2796         double unit_start, double zoom_units, double yscale,
2797         int x1, int y1, int x2, int y2,
2798         int color, int autogrouptype)
2799 {
2800 // Solve bezier equation for either every pixel or a certain large number of
2801 // points.
2802
2803 // Not using slope intercept
2804         x1 = MAX(0, x1);
2805         int prev_y = y1 + center_pixel;
2806
2807
2808 // Call by reference fails for some reason here
2809         FloatAuto *previous1 = previous, *next1 = next;
2810         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2811         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2812         float automation_range = automation_max - automation_min;
2813
2814         for(int x = x1; x < x2; x++)
2815         {
2816 // Interpolate value between frames
2817                 X_TO_FLOATLINE(x)
2818
2819                 if(/* x > x1 && */
2820                         y >= center_pixel - yscale / 2 &&
2821                         y < center_pixel + yscale / 2 - 1)
2822                 {
2823 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2824 // y,
2825 // (int)(center_pixel - yscale / 2),
2826 // (int)(center_pixel + yscale / 2 - 1));
2827
2828 //printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
2829                         draw_line(x - 1, prev_y  , x, y   );
2830                 }
2831                 prev_y = y;
2832         }
2833 }
2834
2835
2836
2837
2838
2839 int TrackCanvas::test_floatline(int center_pixel,
2840                 FloatAutos *autos,
2841                 double unit_start,
2842                 double zoom_units,
2843                 double yscale,
2844                 int x1,
2845                 int x2,
2846                 int cursor_x,
2847                 int cursor_y,
2848                 int buttonpress,
2849                 int autogrouptype)
2850 {
2851         int result = 0;
2852
2853
2854         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2855         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2856         float automation_range = automation_max - automation_min;
2857         FloatAuto *previous1 = 0, *next1 = 0;
2858         X_TO_FLOATLINE(cursor_x);
2859
2860         if(cursor_x >= x1 &&
2861                 cursor_x < x2 &&
2862                 cursor_y >= y - HANDLE_W / 2 &&
2863                 cursor_y < y + HANDLE_W / 2 &&
2864                 !ctrl_down())
2865         {
2866                 result = 1;
2867
2868 // Menu
2869                 if(buttonpress == 3)
2870                 {
2871                 }
2872                 else
2873 // Create keyframe
2874                 if(buttonpress)
2875                 {
2876                         Auto *current;
2877                         mwindow->undo->update_undo_before();
2878                         double position = autos->track->from_units(position1);
2879                         position = mwindow->edl->align_to_frame(position, 0);
2880                         int64_t new_position = autos->track->to_units(position,0);
2881                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2882                         ((FloatAuto*)current)->set_value(value);
2883                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2884                         mwindow->session->drag_start_position = current->position;
2885                         mwindow->session->drag_origin_x = cursor_x;
2886                         mwindow->session->drag_origin_y = cursor_y;
2887                         mwindow->session->drag_handle = 0;
2888                 }
2889         }
2890
2891
2892         return result;
2893 }
2894
2895
2896 void TrackCanvas::fill_ganged_autos(int all, float change, Track *skip, FloatAuto *fauto)
2897 {
2898         if( !skip->gang ) return;
2899 // Handles the special case of modifying a fadeauto
2900 // when there are ganged faders on several tracks
2901         double position = skip->from_units(fauto->position);
2902         int autoidx = fauto->autos->autoidx;
2903
2904         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2905                 if( (all || current->data_type == skip->data_type) &&
2906                     current->gang && current->record && current != skip ) {
2907                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2908                         float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2909                         float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2910                         int64_t current_position = current->to_units(position, 1);
2911                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
2912                         if( keyframe ) {
2913 // keyframe exists, just change it
2914                                 float value = keyframe->get_value();
2915                                 float new_value = value + change;
2916                                 CLAMP(new_value, auto_min, auto_max);
2917                                 keyframe->adjust_to_new_coordinates(current_position, new_value);
2918                         }
2919                         else {
2920 // create keyframe on neighbouring track at the point in time given by fauto
2921                                 FloatAuto *previous = 0, *next = 0;
2922                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2923                                 float new_value = value + change;
2924                                 CLAMP(new_value, auto_min, auto_max);
2925                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2926                                 keyframe->set_value(new_value);
2927                         }
2928                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2929                 }
2930         }
2931 }
2932
2933 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
2934 {
2935         double position = skip->from_units(fauto->position);
2936 // Move the gangs
2937         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2938                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2939                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2940                 float new_value = keyframe->get_value() + change;
2941                 CLAMP(new_value,
2942                       mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2943                       mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2944                 keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2945         }
2946 }
2947
2948 void TrackCanvas::clear_ganged_autos()
2949 {
2950 // remove the gangs
2951         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2952                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2953                 keyframe->autos->remove_nonsequential(keyframe);
2954         }
2955         mwindow->session->drag_auto_gang->remove_all();
2956 }
2957
2958
2959 void TrackCanvas::draw_toggleline(int center_pixel,
2960         int x1,
2961         int y1,
2962         int x2,
2963         int y2)
2964 {
2965         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2966
2967         if(y2 != y1)
2968         {
2969                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2970         }
2971 }
2972
2973 int TrackCanvas::test_toggleline(Autos *autos,
2974         int center_pixel,
2975         int x1,
2976         int y1,
2977         int x2,
2978         int y2,
2979         int cursor_x,
2980         int cursor_y,
2981         int buttonpress)
2982 {
2983         int result = 0;
2984         if(cursor_x >= x1 && cursor_x < x2)
2985         {
2986                 int miny = center_pixel + y1 - HANDLE_W / 2;
2987                 int maxy = center_pixel + y1 + HANDLE_W / 2;
2988                 if(cursor_y >= miny && cursor_y < maxy)
2989                 {
2990                         result = 1;
2991
2992 // Menu
2993                         if(buttonpress == 3)
2994                         {
2995                         }
2996                         else
2997 // Insert keyframe
2998                         if(buttonpress)
2999                         {
3000                                 Auto *current;
3001                                 double position = (double)(cursor_x +
3002                                                 mwindow->edl->local_session->view_start[pane->number]) *
3003                                         mwindow->edl->local_session->zoom_sample /
3004                                         mwindow->edl->session->sample_rate;
3005                                 int64_t unit_position = autos->track->to_units(position, 0);
3006                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
3007
3008                                 mwindow->undo->update_undo_before();
3009
3010                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
3011                                 ((IntAuto*)current)->value = new_value;
3012                                 // Toggle Autos don't respond to vertical zoom, they always show up
3013                                 // with "on" == 100% == line on top
3014                                 mwindow->session->drag_start_percentage = (float)new_value;
3015                                 mwindow->session->drag_start_position = current->position;
3016                                 mwindow->session->drag_origin_x = cursor_x;
3017                                 mwindow->session->drag_origin_y = cursor_y;
3018                         }
3019                 }
3020         };
3021
3022         return result;
3023 }
3024
3025 void TrackCanvas::calculate_viewport(Track *track,
3026         double &view_start,   // Seconds
3027         double &unit_start,
3028         double &view_end,     // Seconds
3029         double &unit_end,
3030         double &yscale,
3031         int &center_pixel,
3032         double &zoom_sample,
3033         double &zoom_units)
3034 {
3035
3036         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
3037                 mwindow->edl->local_session->zoom_sample /
3038                 mwindow->edl->session->sample_rate;
3039         unit_start = track->to_doubleunits(view_start);
3040         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
3041                 get_w()) *
3042                 mwindow->edl->local_session->zoom_sample /
3043                 mwindow->edl->session->sample_rate;
3044         unit_end = track->to_doubleunits(view_end);
3045
3046         int y = track->y_pixel
3047                         - mwindow->edl->local_session->track_start[pane->number];
3048         int has_titles = track->show_titles();
3049         int has_assets = track->show_assets();
3050         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
3051         double asset_h = resource_h();
3052         double title_h = mwindow->theme->title_h;
3053         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
3054         double dy = has_titles ?
3055                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2) :
3056                 ( has_assets ? asset_h/2 : 0) ;
3057         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
3058         yscale = ys;
3059         center_pixel = y + dy;
3060
3061         zoom_sample = mwindow->edl->local_session->zoom_sample;
3062         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
3063 }
3064
3065 float TrackCanvas::percentage_to_value(float percentage,
3066         int is_toggle,
3067         Auto *reference,
3068         int autogrouptype)
3069 {
3070         float result;
3071         if(is_toggle)
3072         {
3073                 if(percentage > 0.5)
3074                         result = 1;
3075                 else
3076                         result = 0;
3077         }
3078         else
3079         {
3080                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3081                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3082                 float automation_range = automation_max - automation_min;
3083
3084                 result = percentage * automation_range + automation_min;
3085                 if(reference)
3086                 {
3087                         FloatAuto *ptr = (FloatAuto*)reference;
3088                         result -= ptr->get_value();
3089                 }
3090 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
3091         }
3092         return result;
3093 }
3094
3095
3096 void TrackCanvas::calculate_auto_position(double *x, double *y,
3097         double *in_x, double *in_y, double *out_x, double *out_y,
3098         Auto *current, double unit_start, double zoom_units, double yscale,
3099         int autogrouptype)
3100 {
3101         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3102         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3103         float automation_range = automation_max - automation_min;
3104         FloatAuto *ptr = (FloatAuto*)current;
3105         *x = (double)(ptr->position - unit_start) / zoom_units;
3106         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
3107
3108         if(in_x) {
3109 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
3110                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
3111         }
3112
3113         if(in_y) {
3114                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
3115                                 automation_min) / automation_range - 0.5) * -yscale;
3116         }
3117
3118         if(out_x) {
3119 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
3120                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
3121         }
3122
3123         if(out_y) {
3124                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
3125                                  automation_min) / automation_range - 0.5) * -yscale;
3126         }
3127 }
3128
3129
3130 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
3131                 int draw, int buttonpress, int x_offset, int y_offset, int color,
3132                 Auto* &auto_instance, int autogrouptype)
3133 {
3134         int result = 0;
3135         int center_pixel, draw_auto;
3136         double view_start, unit_start;
3137         double view_end, unit_end, yscale;
3138         double zoom_sample, zoom_units;
3139         double in_x2, in_y2, out_x2, out_y2;
3140         double slope;
3141         //int skip = 0;
3142
3143         auto_instance = 0;
3144
3145         if(draw) set_color(color);
3146
3147         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3148                         yscale, center_pixel, zoom_sample, zoom_units);
3149
3150 // Get first auto before start
3151         Auto *current = 0, *previous = 0;
3152
3153         for( current = autos->last;
3154                 current && current->position >= unit_start;
3155                 current = PREVIOUS ) ;
3156
3157         Auto *first_auto = current ? current :
3158                  autos->first ? autos->first : autos->default_auto;
3159
3160         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
3161         if( first_auto ) {
3162                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3163                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
3164         }
3165         if( current )
3166                 current = NEXT;
3167         else {
3168                 current = autos->first;
3169                 ax = 0;
3170         }
3171
3172         do {
3173                 //skip = 0;
3174                 draw_auto = 1;
3175
3176                 if(current) {
3177                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
3178                                 current, unit_start, zoom_units, yscale, autogrouptype);
3179                 }
3180                 else {
3181                         ax2 = get_w();
3182                         ay2 = ay;
3183                         //skip = 1;
3184                 }
3185
3186                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3187
3188                 if(ax2 > get_w()) {
3189                         draw_auto = 0;
3190                         ax2 = get_w();
3191                         ay2 = ay + slope * (get_w() - ax);
3192                 }
3193
3194                 if(ax < 0) {
3195                         ay = ay + slope * (0 - ax);
3196                         ax = 0;
3197                 }
3198
3199 // Draw or test handle
3200                 if( current && !result && current != autos->default_auto ) {
3201                         if( !draw && track->record ) {
3202                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
3203                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
3204                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3205                                         buttonpress, autogrouptype);
3206                                 if( result )
3207                                         auto_instance = current;
3208                         }
3209                         if( draw && draw_auto ) {
3210                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
3211                                         (int)in_x2 + x_offset, (int)in_y2,
3212                                         (int)out_x2 + x_offset, (int)out_y2,
3213                                         (int)center_pixel + y_offset, (int)yscale, color);
3214                         }
3215                 }
3216
3217 // Draw or test joining line
3218                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
3219                         result = test_floatline(center_pixel,
3220                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3221 // Exclude auto coverage from the end of the line.  The auto overlaps
3222                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3223                                 buttonpress, autogrouptype);
3224                 }
3225                 if( draw )
3226                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3227                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3228                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3229                                 color, autogrouptype);
3230
3231                 if( current ) {
3232                         previous = current;
3233                         current = NEXT;
3234                 }
3235
3236                 ax = ax2;  ay = ay2;
3237         } while( current && current->position <= unit_end && !result );
3238
3239         if( ax < get_w() && !result ) {
3240                 ax2 = get_w();  ay2 = ay;
3241                 if(!draw && track->record /* && buttonpress != 3 */ ) {
3242                         result = test_floatline(center_pixel,
3243                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3244                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3245                                 buttonpress, autogrouptype);
3246                 }
3247                 if( draw )
3248                         draw_floatline(center_pixel,
3249                                 (FloatAuto*)previous, (FloatAuto*)current,
3250                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3251                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3252                                 color, autogrouptype);
3253         }
3254
3255         return result;
3256 }
3257
3258
3259 int TrackCanvas::do_int_autos(Track *track,
3260                 Autos *autos,
3261                 int cursor_x,
3262                 int cursor_y,
3263                 int draw,
3264                 int buttonpress,
3265                 int x_offset,
3266                 int y_offset,
3267                 int color,
3268                 Auto *&auto_instance)
3269 {
3270         int result = 0;
3271         double view_start;
3272         double unit_start;
3273         double view_end;
3274         double unit_end;
3275         double yscale;
3276         int center_pixel;
3277         double zoom_sample;
3278         double zoom_units;
3279         double ax, ay, ax2, ay2;
3280
3281         auto_instance = 0;
3282
3283         if(draw) set_color(color);
3284
3285         calculate_viewport(track,
3286                 view_start,
3287                 unit_start,
3288                 view_end,
3289                 unit_end,
3290                 yscale,
3291                 center_pixel,
3292                 zoom_sample,
3293                 zoom_units);
3294
3295
3296         double high = -yscale * 0.8 / 2;
3297         double low = yscale * 0.8 / 2;
3298
3299 // Get first auto before start
3300         Auto *current;
3301         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3302                 ;
3303
3304         if(current)
3305         {
3306                 ax = 0;
3307                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3308                 current = NEXT;
3309         }
3310         else
3311         {
3312                 current = autos->first ? autos->first : autos->default_auto;
3313                 if(current)
3314                 {
3315                         ax = 0;
3316                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3317                 }
3318                 else
3319                 {
3320                         ax = 0;
3321                         ay = yscale;
3322                 }
3323         }
3324
3325         do
3326         {
3327                 if(current)
3328                 {
3329                         ax2 = (double)(current->position - unit_start) / zoom_units;
3330                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3331                 }
3332                 else
3333                 {
3334                         ax2 = get_w();
3335                         ay2 = ay;
3336                 }
3337
3338                 if(ax2 > get_w()) ax2 = get_w();
3339
3340                 if(current && !result)
3341                 {
3342                         if(current != autos->default_auto)
3343                         {
3344                                 if(!draw)
3345                                 {
3346                                         if(track->record)
3347                                         {
3348                                                 result = test_auto(current,
3349                                                         (int)ax2,
3350                                                         (int)ay2,
3351                                                         (int)center_pixel,
3352                                                         (int)yscale,
3353                                                         cursor_x,
3354                                                         cursor_y,
3355                                                         buttonpress);
3356                                                 if (result)
3357                                                         auto_instance = current;
3358                                         }
3359                                 }
3360                                 else
3361                                         draw_auto(current,
3362                                                 (int)ax2 + x_offset,
3363                                                 (int)ay2 + y_offset,
3364                                                 (int)center_pixel,
3365                                                 (int)yscale);
3366                         }
3367
3368                         current = NEXT;
3369                 }
3370
3371                 if(!draw)
3372                 {
3373                         if(!result)
3374                         {
3375                                 if(track->record /* && buttonpress != 3 */)
3376                                 {
3377                                         result = test_toggleline(autos,
3378                                                 center_pixel,
3379                                                 (int)ax,
3380                                                 (int)ay,
3381                                                 (int)ax2,
3382                                                 (int)ay2,
3383                                                 cursor_x,
3384                                                 cursor_y,
3385                                                 buttonpress);
3386                                 }
3387                         }
3388                 }
3389                 else
3390                         draw_toggleline(center_pixel + y_offset,
3391                                 (int)ax,
3392                                 (int)ay,
3393                                 (int)ax2,
3394                                 (int)ay2);
3395
3396                 ax = ax2;
3397                 ay = ay2;
3398         }while(current && current->position <= unit_end && !result);
3399
3400         if(ax < get_w() && !result)
3401         {
3402                 ax2 = get_w();
3403                 ay2 = ay;
3404                 if(!draw)
3405                 {
3406                         if(track->record /* && buttonpress != 3 */)
3407                         {
3408                                 result = test_toggleline(autos,
3409                                         center_pixel,
3410                                         (int)ax,
3411                                         (int)ay,
3412                                         (int)ax2,
3413                                         (int)ay2,
3414                                         cursor_x,
3415                                         cursor_y,
3416                                         buttonpress);
3417                         }
3418                 }
3419                 else
3420                         draw_toggleline(center_pixel + y_offset,
3421                                 (int)ax,
3422                                 (int)ay,
3423                                 (int)ax2,
3424                                 (int)ay2);
3425         }
3426         return result;
3427 }
3428
3429 int TrackCanvas::do_autos(Track *track,
3430                 Autos *autos,
3431                 int cursor_x,
3432                 int cursor_y,
3433                 int draw,
3434                 int buttonpress,
3435                 BC_Pixmap *pixmap,
3436                 Auto * &auto_instance,
3437                 int &rerender)
3438 {
3439         int result = 0;
3440
3441         double view_start;
3442         double unit_start;
3443         double view_end;
3444         double unit_end;
3445         double yscale;
3446         int center_pixel;
3447         double zoom_sample;
3448         double zoom_units;
3449
3450         calculate_viewport(track,
3451                 view_start,
3452                 unit_start,
3453                 view_end,
3454                 unit_end,
3455                 yscale,
3456                 center_pixel,
3457                 zoom_sample,
3458                 zoom_units);
3459
3460         Auto *current;
3461         auto_instance = 0;
3462
3463         for(current = autos->first; current && !result; current = NEXT)
3464         {
3465                 if(current->position >= unit_start && current->position < unit_end)
3466                 {
3467                         int64_t x, y;
3468                         x = (int64_t)((double)(current->position - unit_start) /
3469                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3470                         y = center_pixel - pixmap->get_h() / 2;
3471
3472                         if(!draw)
3473                         {
3474                                 if(cursor_x >= x && cursor_y >= y &&
3475                                         cursor_x < x + pixmap->get_w() &&
3476                                         cursor_y < y + pixmap->get_h())
3477                                 {
3478                                         result = 1;
3479                                         auto_instance = current;
3480
3481                                         if(buttonpress && (buttonpress != 3))
3482                                         {
3483                                                 mwindow->session->drag_auto = current;
3484                                                 mwindow->session->drag_start_position = current->position;
3485                                                 mwindow->session->drag_origin_x = cursor_x;
3486                                                 mwindow->session->drag_origin_y = cursor_y;
3487
3488                                                 double position = autos->track->from_units(current->position);
3489                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3490                                                         mwindow->edl->local_session->get_selectionend(1)) /
3491                                                         2;
3492
3493                                                 if(!shift_down())
3494                                                 {
3495                                                         mwindow->edl->local_session->set_selectionstart(position);
3496                                                         mwindow->edl->local_session->set_selectionend(position);
3497                                                 }
3498                                                 else
3499                                                 if(position < center)
3500                                                 {
3501                                                         mwindow->edl->local_session->set_selectionstart(position);
3502                                                 }
3503                                                 else
3504                                                         mwindow->edl->local_session->set_selectionend(position);
3505
3506                                                 rerender = 1;
3507                                         }
3508                                 }
3509                         }
3510                         else
3511                                 draw_pixmap(pixmap, x, y);
3512                 }
3513         }
3514
3515
3516         return result;
3517 }
3518
3519 // so this means it is always >0 when keyframe is found
3520 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3521                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3522                 KeyFrame* &keyframe_instance)
3523 {
3524         int result = 0;
3525
3526         double view_start;
3527         double unit_start;
3528         double view_end;
3529         double unit_end;
3530         double yscale;
3531         int center_pixel;
3532         double zoom_sample;
3533         double zoom_units;
3534
3535         if(!track->expand_view) return 0;
3536
3537         calculate_viewport(track,
3538                 view_start,
3539                 unit_start,
3540                 view_end,
3541                 unit_end,
3542                 yscale,
3543                 center_pixel,
3544                 zoom_sample,
3545                 zoom_units);
3546
3547
3548
3549         for(int i = 0; i < track->plugin_set.total && !result; i++)
3550         {
3551                 PluginSet *plugin_set = track->plugin_set.values[i];
3552                 int center_pixel = track->y_pixel -
3553                         mwindow->edl->local_session->track_start[pane->number];
3554                 if( track->show_titles() )
3555                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3556                 if( track->show_assets() )
3557                         center_pixel += resource_h();
3558                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3559
3560                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3561                         plugin && !result;
3562                         plugin = (Plugin*)plugin->next)
3563                 {
3564                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3565                                 keyframe && !result;
3566                                 keyframe = (KeyFrame*)keyframe->next)
3567                         {
3568 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3569                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3570                                 {
3571                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3572                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3573
3574 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3575                                         if(!draw)
3576                                         {
3577                                                 if(cursor_x >= x && cursor_y >= y &&
3578                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3579                                                         cursor_y < y + keyframe_pixmap->get_h())
3580                                                 {
3581                                                         result = 1;
3582                                                         keyframe_plugin = plugin;
3583                                                         keyframe_instance = keyframe;
3584
3585                                                         if(buttonpress)
3586                                                         {
3587                                                                 mwindow->session->drag_auto = keyframe;
3588                                                                 mwindow->session->drag_start_position = keyframe->position;
3589                                                                 mwindow->session->drag_origin_x = cursor_x;
3590                                                                 mwindow->session->drag_origin_y = cursor_y;
3591
3592                                                                 double position = track->from_units(keyframe->position);
3593                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3594                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3595                                                                         2;
3596
3597                                                                 if(!shift_down())
3598                                                                 {
3599                                                                         mwindow->edl->local_session->set_selectionstart(position);
3600                                                                         mwindow->edl->local_session->set_selectionend(position);
3601                                                                 }
3602                                                                 else
3603                                                                 if(position < center)
3604                                                                 {
3605                                                                         mwindow->edl->local_session->set_selectionstart(position);
3606                                                                 }
3607                                                                 else
3608                                                                         mwindow->edl->local_session->set_selectionend(position);
3609                                                         }
3610                                                 }
3611                                         }
3612                                         else
3613                                                 draw_pixmap(keyframe_pixmap,
3614                                                         x,
3615                                                         y);
3616                                 }
3617                         }
3618                 }
3619         }
3620
3621
3622
3623 //      if(buttonpress && buttonpress != 3 && result)
3624 //      {
3625 //              mwindow->undo->update_undo_before();
3626 //      }
3627
3628         return result;
3629 }
3630
3631 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
3632 {
3633         Track *track = auto_keyframe->autos->track;
3634         int autogrouptype = auto_keyframe->autos->autogrouptype;
3635
3636         int center_pixel;
3637         double view_start, unit_start;
3638         double view_end, unit_end, yscale;
3639         double zoom_sample, zoom_units;
3640
3641         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3642                         yscale, center_pixel, zoom_sample, zoom_units);
3643         if( auto_keyframe->position < unit_start ||
3644             auto_keyframe->position >= unit_end )
3645                 return 0;
3646
3647         double ax = 0, ay = 0;
3648         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3649                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3650
3651         set_color(color);
3652         draw_line(ax, 0, ax, get_h());
3653
3654         if( show ) {
3655                 char text[BCSTRLEN];
3656                 if( auto_keyframe->is_floatauto() ) {
3657                         FloatAuto *float_auto = (FloatAuto *)auto_keyframe;
3658                         sprintf(text, "%0.2f", float_auto->get_value());
3659                 }
3660                 else {
3661                         IntAuto *int_auto = (IntAuto *)auto_keyframe;
3662                         sprintf(text, "%d", int_auto->value);
3663                 }
3664                 int font = MEDIUMFONT;
3665                 int tw = get_text_width(font, text)  + TOOLTIP_MARGIN * 2;
3666                 int th = get_text_height(font, text) + TOOLTIP_MARGIN * 2;
3667                 set_color(get_resources()->tooltip_bg_color);
3668                 ax += HANDLE_W/2;
3669                 ay += center_pixel + HANDLE_W/2;
3670                 draw_box(ax, ay, tw, th);
3671                 set_color(BLACK);
3672                 draw_rectangle(ax, ay, tw, th);
3673                 set_font(font);
3674                 ax += TOOLTIP_MARGIN;
3675                 ay += TOOLTIP_MARGIN + get_text_ascent(font);
3676                 draw_text(ax, ay, text);
3677         }
3678         return 0;
3679 }
3680
3681 void TrackCanvas::draw_overlays()
3682 {
3683         int new_cursor, update_cursor, rerender;
3684
3685 // Move background pixmap to foreground pixmap
3686         draw_pixmap(background_pixmap,
3687                 0,
3688                 0,
3689                 get_w(),
3690                 get_h(),
3691                 0,
3692                 0);
3693
3694 // In/Out points
3695         draw_inout_points();
3696
3697 // Transitions
3698         draw_transitions();
3699
3700 // Plugins
3701         draw_plugins();
3702         draw_hard_edges();
3703
3704 // Loop points
3705         draw_loop_points();
3706         draw_brender_range();
3707
3708 // Highlighted areas
3709         draw_highlighting();
3710
3711 // Automation
3712         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3713
3714 // Selection cursor
3715         if(pane->cursor) pane->cursor->restore(1);
3716
3717 // Handle dragging
3718         draw_drag_handle();
3719
3720 // Playback cursor
3721         draw_playback_cursor();
3722
3723         draw_keyframe_reticle();
3724
3725         show_window(0);
3726 }
3727
3728 int TrackCanvas::activate()
3729 {
3730         if(!active)
3731         {
3732 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3733 //BC_Signals::dump_stack();
3734                 get_top_level()->deactivate();
3735                 active = 1;
3736                 set_active_subwindow(this);
3737                 pane->cursor->activate();
3738                 gui->focused_pane = pane->number;
3739         }
3740         return 0;
3741 }
3742
3743 int TrackCanvas::deactivate()
3744 {
3745         if(active)
3746         {
3747                 active = 0;
3748                 pane->cursor->deactivate();
3749         }
3750         return 0;
3751 }
3752
3753
3754 void TrackCanvas::update_drag_handle()
3755 {
3756         double new_position;
3757         int cursor_x = get_cursor_x();
3758
3759         new_position =
3760                 (double)(cursor_x +
3761                 mwindow->edl->local_session->view_start[pane->number]) *
3762                 mwindow->edl->local_session->zoom_sample /
3763                 mwindow->edl->session->sample_rate;
3764
3765         new_position =
3766                 mwindow->edl->align_to_frame(new_position, 0);
3767
3768         if( ctrl_down() && alt_down() ) {
3769 #define snapper(v) do { \
3770         double pos = (v); \
3771         if( pos < 0 ) break; \
3772         double dist = fabs(new_position - pos); \
3773         if( dist >= snap_min ) break; \
3774         snap_position = pos;  snap_min = dist; \
3775 } while(0)
3776                 double snap_position = new_position;
3777                 double snap_min = DBL_MAX;
3778                 if( mwindow->edl->local_session->inpoint_valid() )
3779                         snapper(mwindow->edl->local_session->get_inpoint());
3780                 if( mwindow->edl->local_session->outpoint_valid() )
3781                         snapper(mwindow->edl->local_session->get_outpoint());
3782                 snapper(mwindow->edl->prev_edit(new_position));
3783                 snapper(mwindow->edl->next_edit(new_position));
3784                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3785                 if( prev_label ) snapper(prev_label->position);
3786                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3787                 if( next_label ) snapper(next_label->position);
3788                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3789                         mwindow->edl->local_session->zoom_sample -
3790                         mwindow->edl->local_session->view_start[pane->number];
3791                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3792                         snapped = 1;
3793                         new_position = snap_position;
3794                 }
3795 #undef snapper
3796         }
3797
3798         if(new_position != mwindow->session->drag_position)
3799         {
3800                 mwindow->session->drag_position = new_position;
3801                 gui->mainclock->update(new_position);
3802                 timebar_position = new_position;
3803                 gui->update_timebar(0);
3804
3805                 EDL *edl = new EDL;
3806                 edl->create_objects();
3807                 edl->copy_all(mwindow->edl);
3808                 MainSession *session = mwindow->session;
3809                 int handle_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3810                 edl->modify_edithandles(session->drag_start,
3811                         session->drag_position, session->drag_handle, handle_mode,
3812                         edl->session->labels_follow_edits,
3813                         edl->session->plugins_follow_edits,
3814                         edl->session->autos_follow_edits,
3815                         !session->drag_edit ? 0 : session->drag_edit->group_id);
3816
3817                 double position = -1;
3818                 int show_edge = !session->drag_handle ? 1 : 2;
3819                 switch( handle_mode ) {
3820                 case MOVE_RIPPLE:
3821                 case MOVE_EDGE:
3822                         position = session->drag_handle ?
3823                                 session->drag_position : session->drag_start;
3824                         show_edge = 3 - show_edge;
3825                         break;
3826                 case MOVE_ROLL:
3827                 case MOVE_SLIDE:
3828                         position = session->drag_position;
3829                         break;
3830                 case MOVE_SLIP:
3831                         position = session->drag_start;
3832                         show_edge = 3 - show_edge;
3833                         break;
3834                 }
3835
3836                 if( position < 0 ) position = 0;
3837                 Track *track = session->drag_handle_track();
3838                 int64_t pos = track->to_units(position, 0);
3839                 render_handle_frame(edl, pos, shift_down() ? 0 : show_edge);
3840                 edl->remove_user();
3841         }
3842 }
3843
3844 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3845 {
3846         int result = 0;
3847         int64_t left = pos-1;
3848         if( left < 0 ) left = 0;
3849         switch( mode ) {
3850         case 0: {
3851                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3852                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3853                 TransportCommand command;
3854                 command.command = CURRENT_FRAME;
3855                 command.get_edl()->copy_all((EDL *)edl);
3856                 command.change_type = CHANGE_ALL;
3857                 command.realtime = 0;
3858                 Preferences *preferences = mwindow->preferences;
3859                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3860                 CICache *video_cache = new CICache(preferences);
3861                 render_engine->set_vcache(video_cache);
3862                 render_engine->arm_command(&command);
3863                 VRender *vrender = render_engine->vrender;
3864                 result = vrender &&
3865                         !vrender->process_buffer(&vlt, left, 0) &&
3866                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3867                 delete render_engine;
3868                 delete video_cache;
3869                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3870                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3871                 canvas->lock_canvas("TrackCanvas::render_handle_frame 1");
3872                 int w = canvas->w, h = canvas->h, w2 = w/2, h2 = h/2;
3873                 int lx = 0, ly = h2/2, rx = w2, ry = h2/2;
3874                 BC_WindowBase *window = canvas->get_canvas();
3875                 window->set_color(BLACK);
3876                 window->clear_box(0,0, window->get_w(),window->get_h());
3877                 window->draw_vframe(&vlt, lx,ly, w2,h2, 0,0,vlt.get_w(),vlt.get_h());
3878                 window->draw_vframe(&vrt, rx,ry, w2,h2, 0,0,vrt.get_w(),vrt.get_h());
3879                 window->flash(1);
3880                 canvas->unlock_canvas();
3881                 mwindow->cwindow->gui->unlock_window();
3882                 break; }
3883         case 1:
3884         case 2: {
3885                 Track *track = mwindow->session->drag_handle_track();
3886                 double position = track->from_units(mode == 1 ? left : pos);
3887                 if( position < 0 ) position = 0;
3888                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3889                 if( playback_engine->is_playing_back )
3890                         playback_engine->stop_playback(1);
3891                 edl->local_session->set_selectionstart(position);
3892                 edl->local_session->set_selectionend(position);
3893                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3894                 break; }
3895         }
3896         return result;
3897 }
3898
3899 int TrackCanvas::update_drag_edit()
3900 {
3901         int result = 0;
3902
3903
3904
3905         return result;
3906 }
3907
3908 int TrackCanvas::get_drag_values(float *percentage,
3909         int64_t *position,
3910         int do_clamp,
3911         int cursor_x,
3912         int cursor_y,
3913         Auto *current)
3914 {
3915         //int x = cursor_x - mwindow->session->drag_origin_x;
3916         //int y = cursor_y - mwindow->session->drag_origin_y;
3917         *percentage = 0;
3918         *position = 0;
3919
3920         if(!current->autos->track->record) return 1;
3921         double view_start;
3922         double unit_start;
3923         double view_end;
3924         double unit_end;
3925         double yscale;
3926         int center_pixel;
3927         double zoom_sample;
3928         double zoom_units;
3929
3930         calculate_viewport(current->autos->track,
3931                 view_start,
3932                 unit_start,
3933                 view_end,
3934                 unit_end,
3935                 yscale,
3936                 center_pixel,
3937                 zoom_sample,
3938                 zoom_units);
3939
3940         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3941                 yscale +
3942                 mwindow->session->drag_start_percentage;
3943         if(do_clamp) CLAMP(*percentage, 0, 1);
3944
3945         *position = Units::to_int64(zoom_units *
3946                 (cursor_x - mwindow->session->drag_origin_x) +
3947                 mwindow->session->drag_start_position + 0.5);
3948
3949         if((do_clamp) && *position < 0) *position = 0;
3950         return 0;
3951 }
3952
3953
3954 #define UPDATE_DRAG_HEAD(do_clamp) \
3955         int result = 0, center_pixel; \
3956         if(!current->autos->track->record) return 0; \
3957         double view_start, unit_start, view_end, unit_end; \
3958         double yscale, zoom_sample, zoom_units; \
3959  \
3960         calculate_viewport(current->autos->track,  \
3961                 view_start, unit_start, view_end, unit_end, \
3962                 yscale, center_pixel, zoom_sample, zoom_units); \
3963  \
3964         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3965                 yscale +  mwindow->session->drag_start_percentage; \
3966         if(do_clamp) CLAMP(percentage, 0, 1); \
3967  \
3968         int64_t position = Units::to_int64(zoom_units * \
3969                 (cursor_x - mwindow->session->drag_origin_x) + \
3970                 mwindow->session->drag_start_position); \
3971         if((do_clamp) && position < 0) position = 0;
3972
3973
3974 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3975 {
3976         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
3977
3978         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
3979         int x = cursor_x - mwindow->session->drag_origin_x;
3980         int y = cursor_y - mwindow->session->drag_origin_y;
3981         float value, old_value;
3982
3983         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
3984 // not really editing the node, rather start editing the curve
3985 // tangent is editable and drag movement is significant
3986                 if( (FloatAuto::FREE == current->curve_mode ||
3987                      FloatAuto::TFREE==current->curve_mode) &&
3988                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
3989                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
3990         }
3991
3992         switch(mwindow->session->drag_handle) {
3993         case 0: // Center
3994 // Snap to nearby values
3995                 old_value = current->get_value();
3996                 if(shift_down()) {
3997                         double value1, value2, distance1=-1, distance2=-1;
3998
3999                         if(current->previous) {
4000                                 int autogrouptype = current->previous->autos->autogrouptype;
4001                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4002                                 value1 = ((FloatAuto*)current->previous)->get_value();
4003                                 distance1 = fabs(value - value1);
4004                                 current->set_value(value1);
4005                         }
4006
4007                         if(current->next) {
4008                                 int autogrouptype = current->next->autos->autogrouptype;
4009                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4010                                 value2 = ((FloatAuto*)current->next)->get_value();
4011                                 distance2 = fabs(value - value2);
4012                                 if(!current->previous || distance2 < distance1) {
4013                                         current->set_value(value2);
4014                                 }
4015                         }
4016
4017                         if(!current->previous && !current->next) {
4018                                 current->set_value( ((FloatAutos*)current->autos)->default_);
4019                         }
4020                         value = current->get_value();
4021                 }
4022                 else {
4023                         int autogrouptype = current->autos->autogrouptype;
4024                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
4025                 }
4026
4027                 if(alt_down() && !shift_down())
4028 // ALT constrains movement: fixed position, only changing the value
4029                         position = mwindow->session->drag_start_position;
4030
4031                 if(value != old_value || position != current->position) {
4032                         result = 1;
4033                         float change = value - old_value;
4034                         current->adjust_to_new_coordinates(position, value);
4035                         update_ganged_autos(change, current->autos->track, current);
4036                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4037                         show_message(current, color, ", %.2f", current->get_value());
4038                 }
4039                 break;
4040
4041 // In control
4042         case 1: {
4043                 int autogrouptype = current->autos->autogrouptype;
4044                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4045                 if(value != current->get_control_in_value())
4046                 {
4047                         result = 1;
4048                         // note: (position,value) need not be at the location of the ctrl point,
4049                         // but could be somewhere in between on the curve (or even outward or
4050                         // on the opposit side). We set the new control point such as
4051                         // to point the curve through (position,value)
4052                         current->set_control_in_value(
4053                                 value * levered_position(position - current->position,
4054                                                          current->get_control_in_position()));
4055                         update_ganged_autos(0, current->autos->track, current);
4056                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4057                         show_message(current, color, ", %.2f", current->get_control_in_value());
4058                 }
4059                 break; }
4060
4061 // Out control
4062         case 2: {
4063                 int autogrouptype = current->autos->autogrouptype;
4064                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4065                 if(value != current->get_control_out_value()) {
4066                         result = 1;
4067                         current->set_control_out_value(
4068                                 value * levered_position(position - current->position,
4069                                                          current->get_control_out_position()));
4070                         update_ganged_autos(0, current->autos->track, current);
4071                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4072                         show_message(current, color, ", %.2f", current->get_control_out_value());
4073                 }
4074                 break; }
4075         }
4076
4077         return result;
4078 }
4079
4080 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4081 {
4082         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4083
4084         UPDATE_DRAG_HEAD(1);
4085         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4086
4087         if(value != current->value || position != current->position)
4088         {
4089                 result = 1;
4090                 current->value = value;
4091                 current->position = position;
4092                 show_message(current, -1, ", %d", current->value);
4093         }
4094
4095         return result;
4096 }
4097
4098 // Autos which can't change value through dragging.
4099
4100 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4101 {
4102         Auto *current = (Auto*)mwindow->session->drag_auto;
4103
4104         UPDATE_DRAG_HEAD(1)
4105         if(position != current->position)
4106         {
4107                 result = 1;
4108                 current->position = position;
4109                 show_message(current, -1, "");
4110
4111                 double position_f = current->autos->track->from_units(current->position);
4112                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4113                         mwindow->edl->local_session->get_selectionend(1)) /
4114                         2;
4115                 if(!shift_down())
4116                 {
4117                         mwindow->edl->local_session->set_selectionstart(position_f);
4118                         mwindow->edl->local_session->set_selectionend(position_f);
4119                 }
4120                 else
4121                 if(position_f < center_f)
4122                 {
4123                         mwindow->edl->local_session->set_selectionstart(position_f);
4124                 }
4125                 else
4126                         mwindow->edl->local_session->set_selectionend(position_f);
4127         }
4128
4129
4130         return result;
4131 }
4132
4133 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4134 {
4135         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4136
4137         UPDATE_DRAG_HEAD(1)
4138         if(position != current->position)
4139         {
4140 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4141                 Track *track = current->autos->track;
4142                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4143                 PluginSet *pluginset;
4144                 Plugin *plugin = 0;
4145 // figure out the correct pluginset & correct plugin
4146                 int found = 0;
4147                 for(int i = 0; i < track->plugin_set.total; i++)
4148                 {
4149                         pluginset = track->plugin_set.values[i];
4150                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4151                         {
4152                                 KeyFrames *keyframes = plugin->keyframes;
4153                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4154                                         currentkeyframe;
4155                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4156                                 {
4157                                         if (currentkeyframe == current)
4158                                         {
4159                                                 found = 1;
4160                                                 break;
4161                                         }
4162
4163                                 }
4164                                 if (found) break;
4165                         }
4166                         if (found) break;
4167                 }
4168
4169                 mwindow->session->plugin_highlighted = plugin;
4170                 mwindow->session->track_highlighted = track;
4171                 result = 1;
4172                 current->position = position;
4173                 show_message(current, -1, "");
4174
4175                 double position_f = current->autos->track->from_units(current->position);
4176                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4177                         mwindow->edl->local_session->get_selectionend(1)) /
4178                         2;
4179                 if(!shift_down())
4180                 {
4181                         mwindow->edl->local_session->set_selectionstart(position_f);
4182                         mwindow->edl->local_session->set_selectionend(position_f);
4183                 }
4184                 else
4185                 if(position_f < center_f)
4186                 {
4187                         mwindow->edl->local_session->set_selectionstart(position_f);
4188                 }
4189                 else
4190                         mwindow->edl->local_session->set_selectionend(position_f);
4191         }
4192
4193
4194         return result;
4195 }
4196
4197 void TrackCanvas::update_drag_caption()
4198 {
4199         switch(mwindow->session->current_operation)
4200         {
4201                 case DRAG_FADE:
4202
4203                         break;
4204         }
4205 }
4206
4207
4208
4209 int TrackCanvas::cursor_update(int in_motion)
4210 {
4211         int result = 0;
4212         int cursor_x = 0;
4213         int cursor_y = 0;
4214         int update_clock = 0;
4215         int update_zoom = 0;
4216         int update_scroll = 0;
4217         int update_overlay = 0;
4218         int update_cursor = 0;
4219         int rerender = 0;
4220         double position = 0.;
4221 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4222
4223 // Default cursor
4224         int new_cursor =
4225                 arrow_mode() ? ARROW_CURSOR :
4226                 ibeam_mode() ? IBEAM_CURSOR : 0;
4227
4228         switch(mwindow->session->current_operation)
4229         {
4230                 case DRAG_EDITHANDLE1:
4231 // Outside threshold.  Upgrade status
4232                         if(active)
4233                         {
4234                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4235                                 {
4236                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
4237                                         update_overlay = 1;
4238                                 }
4239                         }
4240                         break;
4241
4242                 case DRAG_EDITHANDLE2:
4243                         if(active)
4244                         {
4245                                 update_drag_handle();
4246                                 update_overlay = 1;
4247                         }
4248                         break;
4249
4250                 case DRAG_PLUGINHANDLE1:
4251                         if(active)
4252                         {
4253                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4254                                 {
4255                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4256                                         update_overlay = 1;
4257                                 }
4258                         }
4259                         break;
4260
4261                 case DRAG_PLUGINHANDLE2:
4262                         if(active)
4263                         {
4264                                 update_drag_handle();
4265                                 update_overlay = 1;
4266                         }
4267                         break;
4268
4269 // Rubber band curves
4270                 case DRAG_FADE:
4271                 case DRAG_SPEED:
4272                 case DRAG_CZOOM:
4273                 case DRAG_PZOOM:
4274                 case DRAG_CAMERA_X:
4275                 case DRAG_CAMERA_Y:
4276                 case DRAG_CAMERA_Z:
4277                 case DRAG_PROJECTOR_X:
4278                 case DRAG_PROJECTOR_Y:
4279                 case DRAG_PROJECTOR_Z:
4280                         if(active) rerender = update_overlay =
4281                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4282                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4283                                 mwindow->speed_after(!in_motion ? 1 : 0);
4284                         break;
4285
4286                 case DRAG_PLAY:
4287                         if(active) rerender = update_overlay =
4288                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4289                         break;
4290
4291                 case DRAG_MUTE:
4292                         if(active) rerender = update_overlay =
4293                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4294                         break;
4295
4296 // Keyframe icons are sticky
4297                 case DRAG_PAN_PRE:
4298                 case DRAG_MASK_PRE:
4299                 case DRAG_MODE_PRE:
4300                 case DRAG_PLUGINKEY_PRE:
4301                         if(active) {
4302                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4303                                         mwindow->session->current_operation++;
4304                                         update_overlay = 1;
4305
4306                                         mwindow->undo->update_undo_before();
4307                                 }
4308                         }
4309                         break;
4310
4311                 case DRAG_PAN:
4312                 case DRAG_MASK:
4313                 case DRAG_MODE:
4314                         if(active) rerender = update_overlay =
4315                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4316                         break;
4317
4318                 case DRAG_PLUGINKEY:
4319                         if(active) rerender = update_overlay =
4320                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4321                         break;
4322
4323                 case SELECT_REGION:
4324                         if(active) {
4325                                 cursor_x = get_cursor_x();
4326                                 cursor_y = get_cursor_y();
4327                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4328                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4329
4330                                 position = mwindow->edl->align_to_frame(position, 0);
4331                                 position = MAX(position, 0);
4332
4333                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4334                                 double end = mwindow->edl->local_session->get_selectionend(1);
4335                                 if(position < selection_midpoint) {
4336                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4337                                         mwindow->edl->local_session->set_selectionstart(position);
4338                                 }
4339                                 else {
4340                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4341                                         mwindow->edl->local_session->set_selectionend(position);
4342                                 }
4343         // Que the CWindow
4344                                 gui->unlock_window();
4345                                 int dir =
4346                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4347                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4348                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4349                                 gui->lock_window("TrackCanvas::cursor_update 1");
4350         // Update the faders
4351                                 mwindow->update_plugin_guis();
4352                                 gui->update_patchbay();
4353
4354                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4355
4356                                 gui->hide_cursor(0);
4357                                 gui->draw_cursor(1);
4358                                 gui->update_timebar(0);
4359                                 gui->flash_canvas(1);
4360                                 result = 1;
4361                                 update_clock = 1;
4362                                 update_zoom = 1;
4363                                 update_scroll = 1;
4364                         }
4365                         break;
4366
4367                 case DROP_TARGETING:
4368                         new_cursor = GRABBED_CURSOR;
4369                         result = 1;
4370                         break;
4371
4372                 default:
4373                         if(is_event_win() && cursor_inside()) {
4374 // Update clocks
4375                                 cursor_x = get_cursor_x();
4376                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4377                                 position = mwindow->edl->align_to_frame(position, 0);
4378                                 update_clock = 1;
4379 // set all timebars
4380                                 for(int i = 0; i < TOTAL_PANES; i++)
4381                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4382
4383 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4384                                 gui->update_timebar(0);
4385 // Update cursor
4386                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4387                                                 0, new_cursor, update_cursor)) break;
4388                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4389                                         0, 0, new_cursor, update_cursor, rerender)) break;
4390                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4391                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4392 // Plugin boundaries
4393                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4394                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4395                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4396                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4397                         }
4398                         break;
4399         }
4400
4401 //printf("TrackCanvas::cursor_update 1\n");
4402         if(update_cursor && new_cursor != get_cursor())
4403         {
4404                 set_cursor(new_cursor, 0, 1);
4405         }
4406
4407 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4408         if(rerender && render_timer->get_difference() > 0.25 ) {
4409                 render_timer->update();
4410                 mwindow->restart_brender();
4411                 mwindow->sync_parameters(CHANGE_PARAMS);
4412                 mwindow->update_plugin_guis();
4413                 gui->unlock_window();
4414                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4415                 gui->lock_window("TrackCanvas::cursor_update 2");
4416         }
4417         if(rerender) {
4418 // Update faders
4419                 gui->update_patchbay();
4420         }
4421
4422
4423         if(update_clock) {
4424                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4425                         gui->mainclock->update(position);
4426         }
4427
4428         if(update_zoom) {
4429                 gui->zoombar->update();
4430         }
4431
4432         if(update_scroll) {
4433                 if(!drag_scroll &&
4434                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4435                         start_dragscroll();
4436                 else
4437                 if(drag_scroll &&
4438                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4439                         stop_dragscroll();
4440         }
4441
4442         if(update_overlay) {
4443                 gui->draw_overlays(1);
4444         }
4445
4446 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4447         return result;
4448 }
4449
4450 int TrackCanvas::cursor_motion_event()
4451 {
4452         return cursor_update(1);
4453 }
4454
4455 void TrackCanvas::start_dragscroll()
4456 {
4457         if(!drag_scroll) {
4458                 drag_scroll = 1;
4459                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4460 //printf("TrackCanvas::start_dragscroll 1\n");
4461         }
4462 }
4463
4464 void TrackCanvas::stop_dragscroll()
4465 {
4466         if(drag_scroll) {
4467                 drag_scroll = 0;
4468                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4469 //printf("TrackCanvas::stop_dragscroll 1\n");
4470         }
4471 }
4472
4473 int TrackCanvas::repeat_event(int64_t duration)
4474 {
4475         if(!drag_scroll) return 0;
4476         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4477
4478         int sample_movement = 0;
4479         int track_movement = 0;
4480         int64_t x_distance = 0;
4481         int64_t y_distance = 0;
4482         double position = 0;
4483         int result = 0;
4484
4485         switch(mwindow->session->current_operation) {
4486                 case SELECT_REGION:
4487 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4488                 if(get_cursor_x() > get_w()) {
4489                                 x_distance = get_cursor_x() - get_w();
4490                                 sample_movement = 1;
4491                 }
4492                 else if(get_cursor_x() < 0) {
4493                         x_distance = get_cursor_x();
4494                         sample_movement = 1;
4495                 }
4496
4497                 if(get_cursor_y() > get_h()) {
4498                         y_distance = get_cursor_y() - get_h();
4499                         track_movement = 1;
4500                 }
4501                 else if(get_cursor_y() < 0) {
4502                         y_distance = get_cursor_y();
4503                         track_movement = 1;
4504                 }
4505                 result = 1;
4506                 break;
4507         }
4508
4509         if(sample_movement) {
4510                 position = (double)(get_cursor_x() +
4511                         mwindow->edl->local_session->view_start[pane->number] +
4512                         x_distance) *
4513                         mwindow->edl->local_session->zoom_sample /
4514                         mwindow->edl->session->sample_rate;
4515                 position = mwindow->edl->align_to_frame(position, 0);
4516                 position = MAX(position, 0);
4517
4518 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4519                 switch(mwindow->session->current_operation) {
4520                 case SELECT_REGION:
4521                         if(position < selection_midpoint) {
4522                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4523                                 mwindow->edl->local_session->set_selectionstart(position);
4524 // Que the CWindow
4525                                 gui->unlock_window();
4526                                 mwindow->cwindow->update(1, 0, 0);
4527                                 gui->lock_window("TrackCanvas::repeat_event");
4528 // Update the faders
4529                                 mwindow->update_plugin_guis();
4530                                 gui->update_patchbay();
4531                         }
4532                         else {
4533                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4534                                 mwindow->edl->local_session->set_selectionend(position);
4535 // Don't que the CWindow
4536                         }
4537                         break;
4538                 }
4539
4540                 mwindow->samplemovement(
4541                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4542                         pane->number);
4543         }
4544
4545         if(track_movement) {
4546                 mwindow->trackmovement(y_distance, pane->number);
4547         }
4548
4549         return result;
4550 }
4551
4552 int TrackCanvas::button_release_event()
4553 {
4554         int redraw = -1, update_overlay = 0;
4555         int result = 0, load_flags = 0;
4556
4557 // printf("TrackCanvas::button_release_event %d\n",
4558 // mwindow->session->current_operation);
4559         if(active) {
4560                 switch(mwindow->session->current_operation) {
4561                 case DRAG_EDITHANDLE2:
4562                         mwindow->session->current_operation = NO_OPERATION;
4563                         drag_scroll = 0;
4564                         result = 1;
4565
4566                         end_edithandle_selection();
4567                         break;
4568
4569                 case DRAG_EDITHANDLE1:
4570                         mwindow->session->current_operation = NO_OPERATION;
4571                         drag_scroll = 0;
4572                         result = 1;
4573                         break;
4574
4575                 case DRAG_PLUGINHANDLE2:
4576                         mwindow->session->current_operation = NO_OPERATION;
4577                         drag_scroll = 0;
4578                         result = 1;
4579
4580                         end_pluginhandle_selection();
4581                         break;
4582
4583                 case DRAG_PLUGINHANDLE1:
4584                         mwindow->session->current_operation = NO_OPERATION;
4585                         drag_scroll = 0;
4586                         result = 1;
4587                         break;
4588
4589                 case DRAG_SPEED:
4590                         redraw = FORCE_REDRAW;
4591                         load_flags |= LOAD_EDITS;
4592                 case DRAG_FADE:
4593 // delete the drag_auto_gang first and remove out of order keys
4594                         clear_ganged_autos();
4595                 case DRAG_CZOOM:
4596                 case DRAG_PZOOM:
4597                 case DRAG_PLAY:
4598                 case DRAG_MUTE:
4599                 case DRAG_MASK:
4600                 case DRAG_MODE:
4601                 case DRAG_PAN:
4602                 case DRAG_CAMERA_X:
4603                 case DRAG_CAMERA_Y:
4604                 case DRAG_CAMERA_Z:
4605                 case DRAG_PROJECTOR_X:
4606                 case DRAG_PROJECTOR_Y:
4607                 case DRAG_PROJECTOR_Z:
4608                 case DRAG_PLUGINKEY:
4609                         load_flags |= LOAD_AUTOMATION;
4610                         mwindow->session->current_operation = NO_OPERATION;
4611                         mwindow->session->drag_handle = 0;
4612 // Remove any out-of-order keyframe
4613                         if(mwindow->session->drag_auto) {
4614                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4615                                                 mwindow->session->drag_auto);
4616 //                              mwindow->session->drag_auto->autos->optimize();
4617                                 update_overlay = 1;
4618                         }
4619
4620                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4621                         result = 1;
4622                         break;
4623
4624                 case DRAG_EDIT:
4625                 case DRAG_GROUP:
4626                 case DRAG_AEFFECT_COPY:
4627                 case DRAG_VEFFECT_COPY:
4628 // Trap in drag stop
4629                         break;
4630
4631                 case DROP_TARGETING: {
4632                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4633                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4634                         drag_cursor_motion(cursor_x, cursor_y,
4635                                 &track, &edit, &pluginset, &plugin);
4636                         double position =
4637                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4638                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4639                         mwindow->session->current_operation = NO_OPERATION;
4640                         result = 1;
4641                         break; }
4642
4643                 case GROUP_TOGGLE: {
4644                         Edit *edit = mwindow->session->drag_edit;
4645                         if( edit ) {
4646                                 if( shift_down() && edit->is_selected ) {
4647                                         if( edit->group_id > 0 ) {
4648                                                 mwindow->edl->tracks->clear_selected_edits();
4649                                                 mwindow->edl->tracks->del_group(edit->group_id);
4650                                         }
4651                                         else {
4652                                                 int id = mwindow->session->group_number++;
4653                                                 mwindow->edl->tracks->new_group(id);
4654                                         }
4655                                         redraw = 0;
4656                                 }
4657                                 else {
4658                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4659                                                 mwindow->edl->tracks->clear_selected_edits();
4660                                         edit->set_selected(-1);
4661                                 }
4662                         }
4663                         mwindow->session->current_operation = NO_OPERATION;
4664                         update_overlay = 1;
4665                         result = 1;
4666                         drag_scroll = 0;
4667                         break; }
4668
4669                 default:
4670                         if( mwindow->session->current_operation ) {
4671 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4672 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4673 //                              }
4674
4675                                 mwindow->session->current_operation = NO_OPERATION;
4676                                 drag_scroll = 0;
4677                                 //result = 0;
4678                                 break;
4679                         }
4680                         break;
4681                 }
4682         }
4683
4684         if( mwindow->edl->local_session->zoombar_showautocolor >= 0 )
4685                 mwindow->gui->zoombar->update_autozoom(-1);
4686
4687         if (result)
4688                 cursor_update(0);
4689
4690         if(update_overlay) {
4691                 gui->draw_overlays(1);
4692         }
4693         if(redraw >= 0) {
4694                 gui->draw_canvas(redraw, 0);
4695                 gui->flash_canvas(1);
4696         }
4697         return result;
4698 }
4699
4700 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4701         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4702 {
4703         Edit *edit_result = 0;
4704         int handle_result = -1;
4705         int result = 0;
4706
4707         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4708                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4709                         int64_t edit_x, edit_y, edit_w, edit_h;
4710                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4711
4712                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4713                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4714                                 if( cursor_x < edit_x + HANDLE_W ) {
4715                                         edit_result = edit;
4716                                         handle_result = 0;
4717                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4718                                             track->show_assets() ) {
4719                                                 new_cursor = DOWNLEFT_RESIZE;
4720                                                 if( button_press == LEFT_BUTTON )
4721                                                         result = -1;
4722                                         }
4723                                         else
4724                                                 result = 1;
4725                                 }
4726                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4727                                         edit_result = edit;
4728                                         handle_result = 1;
4729                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4730                                             track->show_assets() ) {
4731                                                 new_cursor = DOWNRIGHT_RESIZE;
4732                                                 if( button_press == LEFT_BUTTON )
4733                                                         result = -1;
4734                                         }
4735                                         else
4736                                                 result = 1;
4737                                 }
4738                         }
4739                 }
4740         }
4741
4742         if( result > 0 ) {
4743                 int group_id = edit_result->group_id;
4744                 if( group_id > 0 ) {
4745                         Track *track = edit_result->track;
4746                         Edit *left = 0, *right = 0;
4747                         double start = DBL_MAX, end = DBL_MIN;
4748                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4749                                 if( edit->group_id != group_id ) continue;
4750                                 double edit_start = edit->track->from_units(edit->startproject);
4751                                 if( edit_start < start ) { start = edit_start;  left = edit; }
4752                                 double edit_end = edit->track->from_units(edit->startproject+edit->length);
4753                                 if( edit_end > end ) { end = edit_end;  right = edit; }
4754                         }
4755                         Edit *edit = !handle_result ? left : right;
4756                         if( edit != edit_result )
4757                                 result = 0;
4758                 }
4759         }
4760
4761         update_cursor = 1;
4762         if( result > 0 ) {
4763                 double position = 0;
4764                 if( handle_result == 0 ) {
4765                         position = edit_result->track->from_units(edit_result->startproject);
4766                         new_cursor = LEFT_CURSOR;
4767                 }
4768                 else if( handle_result == 1 ) {
4769                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4770                         new_cursor = RIGHT_CURSOR;
4771                 }
4772
4773 // Reposition cursor
4774                 if( button_press ) {
4775                         mwindow->session->drag_edit = edit_result;
4776                         mwindow->session->drag_handle = handle_result;
4777                         mwindow->session->drag_button = get_buttonpress() - 1;
4778                         mwindow->session->drag_position = position;
4779                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4780                         mwindow->session->drag_origin_x = get_cursor_x();
4781                         mwindow->session->drag_origin_y = get_cursor_y();
4782                         mwindow->session->drag_start = position;
4783
4784                         rerender = start_selection(position);
4785                         update_overlay = 1;
4786                 }
4787         }
4788         else if( result < 0 ) {
4789                 mwindow->undo->update_undo_before();
4790                 if( !shift_down() ) {
4791                         if( handle_result == 0 )
4792                                 edit_result->hard_left = !edit_result->hard_left;
4793                         else if( handle_result == 1 )
4794                                 edit_result->hard_right = !edit_result->hard_right;
4795                 }
4796                 else {
4797                         int status = handle_result == 0 ? edit_result->hard_left :
4798                                      handle_result == 1 ? edit_result->hard_right : 0;
4799                         int new_status = !status;
4800                         int64_t edit_edge = edit_result->startproject;
4801                         if( handle_result == 1 ) edit_edge += edit_result->length;
4802                         double edge_position = edit_result->track->from_units(edit_edge);
4803                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4804                                 int64_t track_position = track->to_units(edge_position, 1);
4805                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4806                                 if( left_edit ) {
4807                                         int64_t left_edge = left_edit->startproject;
4808                                         double left_position = track->from_units(left_edge);
4809                                         if( EQUIV(edge_position, left_position) ) {
4810                                                 left_edit->hard_left = new_status;
4811                                                 if( left_edit->previous )
4812                                                         left_edit->previous->hard_right = new_status;
4813                                         }
4814                                 }
4815                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4816                                 if( right_edit ) {
4817                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4818                                         double right_position = track->from_units(right_edge);
4819                                         if( EQUIV(edge_position, right_position) ) {
4820                                                 right_edit->hard_right = new_status;
4821                                                 if( right_edit->next )
4822                                                         right_edit->next->hard_left = new_status;
4823                                         }
4824                                 }
4825                         }
4826                 }
4827                 rerender = update_overlay = 1;
4828                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4829                 result = 1;
4830         }
4831
4832         return result;
4833 }
4834
4835 int TrackCanvas::do_plugin_handles(int cursor_x,
4836         int cursor_y,
4837         int button_press,
4838         int &rerender,
4839         int &update_overlay,
4840         int &new_cursor,
4841         int &update_cursor)
4842 {
4843         Plugin *plugin_result = 0;
4844         int handle_result = 0;
4845         int result = 0;
4846
4847         for(Track *track = mwindow->edl->tracks->first;
4848                 track && !result;
4849                 track = track->next) {
4850                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4851                         PluginSet *plugin_set = track->plugin_set.values[i];
4852                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4853                                 plugin && !result;
4854                                 plugin = (Plugin*)plugin->next) {
4855                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4856                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4857
4858                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4859                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4860                                         if(cursor_x < plugin_x + HANDLE_W) {
4861                                                 plugin_result = plugin;
4862                                                 handle_result = 0;
4863                                                 result = 1;
4864                                         }
4865                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4866                                                 plugin_result = plugin;
4867                                                 handle_result = 1;
4868                                                 result = 1;
4869                                         }
4870                                 }
4871                         }
4872
4873                         if(result && shift_down())
4874                                 mwindow->session->trim_edits = plugin_set;
4875                 }
4876         }
4877
4878         update_cursor = 1;
4879         if(result) {
4880                 double position = 0;
4881                 if(handle_result == 0) {
4882                         position = plugin_result->track->from_units(plugin_result->startproject);
4883                         new_cursor = LEFT_CURSOR;
4884                 }
4885                 else if(handle_result == 1) {
4886                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4887                         new_cursor = RIGHT_CURSOR;
4888                 }
4889
4890                 if(button_press) {
4891                         mwindow->session->drag_plugin = plugin_result;
4892                         mwindow->session->drag_handle = handle_result;
4893                         mwindow->session->drag_button = get_buttonpress() - 1;
4894                         mwindow->session->drag_position = position;
4895                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4896                         mwindow->session->drag_origin_x = get_cursor_x();
4897                         mwindow->session->drag_origin_y = get_cursor_y();
4898                         mwindow->session->drag_start = position;
4899
4900                         rerender = start_selection(position);
4901                         update_overlay = 1;
4902                 }
4903         }
4904
4905         return result;
4906 }
4907
4908
4909 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4910 {
4911         int result = 0;
4912
4913         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4914         drag_cursor_motion(cursor_x, cursor_y,
4915                 &track, &edit, &pluginset, &plugin);
4916
4917         if( button_press && track ) {
4918                 switch( get_buttonpress() ) {
4919                 case RIGHT_BUTTON: {
4920                         double position =
4921                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4922                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
4923                         mwindow->session->current_operation = NO_OPERATION;
4924                         result = 1;
4925                         break; }
4926                 case MIDDLE_BUTTON:
4927                         set_cursor(GRABBED_CURSOR, 0, 1);
4928                         mwindow->session->current_operation = DROP_TARGETING;
4929                         result = 1;
4930                         break;
4931                 }
4932         }
4933
4934         return result;
4935 }
4936
4937 int TrackCanvas::arrow_mode()
4938 {
4939         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
4940 }
4941 int TrackCanvas::ibeam_mode()
4942 {
4943         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
4944 }
4945
4946 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4947         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4948 {
4949         int result = 0;
4950
4951         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4952                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4953                         int64_t edit_x, edit_y, edit_w, edit_h;
4954                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4955
4956 // Cursor inside a track
4957 // Cursor inside an edit
4958                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4959                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4960                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
4961                                         if( get_double_click() ) {
4962                                                 mwindow->edl->tracks->clear_selected_edits();
4963                                                 mwindow->edl->tracks->select_affected_edits(
4964                                                         edit->track->from_units(edit->startproject),
4965                                                         edit->track, 1);
4966                                                 double start = edit->track->from_units(edit->startproject);
4967                                                 start = mwindow->edl->align_to_frame(start, 0);
4968                                                 mwindow->edl->local_session->set_selectionstart(start);
4969                                                 double end = edit->track->from_units(edit->startproject+edit->length);
4970                                                 end = mwindow->edl->align_to_frame(end, 0);
4971                                                 mwindow->edl->local_session->set_selectionend(end);
4972                                                 result = 1; // Select edit duration or select_region
4973                                         }
4974                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
4975                                                 mwindow->session->drag_edit = edit;
4976                                                 mwindow->session->current_operation = GROUP_TOGGLE;
4977                                                 result = 1;
4978                                         }
4979                                         if( result ) {
4980                                                 rerender = 1;
4981                                                 update_cursor = -1;
4982                                         }
4983                                 }
4984                                 else if( drag_start && track->record ) {
4985                                         mwindow->session->drag_edit = edit;
4986                                         mwindow->session->drag_origin_x = cursor_x;
4987                                         mwindow->session->drag_origin_y = cursor_y;
4988 // Where the drag started, so we know relative position inside the edit later
4989                                         mwindow->session->drag_position =
4990                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4991                                         drag_start = 0; // if unselected "fast" drag
4992                                         if( !edit->silence() && !edit->is_selected ) {
4993                                                 mwindow->edl->tracks->clear_selected_edits();
4994                                                 if( ibeam_mode() ) {
4995                                                         double start = edit->track->from_units(edit->startproject);
4996                                                         mwindow->edl->local_session->set_selectionstart(start);
4997                                                         mwindow->edl->local_session->set_selectionend(start);
4998                                                         edit->set_selected(1);
4999                                                 }
5000                                                 else
5001                                                         mwindow->edl->tracks->select_affected_edits(
5002                                                                 edit->track->from_units(edit->startproject),
5003                                                                 edit->track, 1);
5004                                                 drag_start = 1;
5005                                         }
5006 // Construct list of all affected edits
5007                                         if( drag_start || ibeam_mode() ) {
5008                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
5009                                                 if( mwindow->session->drag_edits->size() > 0 ) {
5010                                                         mwindow->session->current_operation = DRAG_EDIT;
5011 // Need to create drag window
5012                                                         int cx, cy;  get_abs_cursor(cx, cy);
5013                                                         gui->drag_popup = new BC_DragWindow(gui,
5014                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
5015                                                         result = 1;
5016                                                 }
5017                                                 else {
5018                                                         rerender = start_selection(mwindow->session->drag_position);
5019                                                         mwindow->session->current_operation = SELECT_REGION;
5020                                                         update_cursor = 1;
5021                                                 }
5022                                         }
5023                                         else if( edit->is_selected && arrow_mode() ) {
5024                                                 if( mwindow->session->drag_group )
5025                                                         mwindow->session->drag_group->remove_user();
5026                                                 double start_position = 0;
5027                                                 mwindow->session->drag_group =
5028                                                         mwindow->selected_edits_to_clip(0, &start_position,
5029                                                                 &mwindow->session->drag_group_first_track,
5030                                                                 mwindow->edl->session->labels_follow_edits,
5031                                                                 mwindow->edl->session->autos_follow_edits,
5032                                                                 mwindow->edl->session->plugins_follow_edits);
5033                                                 if( mwindow->session->drag_group ) {
5034                                                         mwindow->session->current_operation = DRAG_GROUP;
5035                                                         mwindow->session->drag_group_position = start_position;
5036                                                         mwindow->session->drag_group_edit = edit;
5037                                                         mwindow->session->drag_origin_y = edit_y;
5038                                                         result = 1;
5039                                                 }
5040                                         }
5041                                 }
5042                         }
5043                 }
5044         }
5045         return result;
5046 }
5047
5048
5049 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
5050 {
5051         Track *src = group->tracks->first;
5052         for( Track *track=first_track; track && src; track=track->next ) {
5053                 if( !track->record ) continue;
5054                 if( src->data_type != track->data_type ) return -1;
5055                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
5056                         if( src_edit->silence() ) continue;
5057                         if( edit_intersects(track, src_edit, pos) ) return 0;
5058                 }
5059                 src = src->next;
5060         }
5061         return !src ? 1 : 0;
5062 }
5063
5064 int TrackCanvas::edit_intersects(Track *track, Edit *src_edit, double &pos)
5065 {
5066         if( pos < 0 ) { pos = 0;  return 1; }
5067         int64_t src_start = src_edit->startproject;
5068         int64_t src_end = src_start + src_edit->length;
5069         double new_start = src_edit->track->from_units(src_start) + pos;
5070         double new_end = src_edit->track->from_units(src_end) + pos;
5071         int64_t trk_start = track->to_units(new_start, 1);
5072         int64_t trk_end = track->to_units(new_end, 1);
5073         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
5074                 if( edit->is_selected || edit->silence() ) continue;
5075                 int64_t edit_start = edit->startproject;
5076                 if( edit_start >= trk_end ) continue;
5077                 int64_t edit_end = edit_start + edit->length;
5078                 if( trk_start >= edit_end ) continue;
5079                 int64_t lt_dist = labs(trk_end - edit_start);
5080                 int64_t rt_dist = labs(edit_end - trk_start);
5081                 int64_t position;
5082                 if( lt_dist < rt_dist ) {
5083                         position = edit_start;
5084                         lt_dist = abs(trk_start - edit_start);
5085                         rt_dist = abs(trk_end - edit_start);
5086                         if( lt_dist > rt_dist )
5087                                 position -= src_end;
5088                 }
5089                 else {
5090                         position = edit_end;
5091                         lt_dist = abs(trk_start - edit_end);
5092                         rt_dist = abs(trk_end - edit_end);
5093                         if( lt_dist > rt_dist )
5094                                 position -= src_end;
5095                 }
5096                 pos = edit->track->from_units(position);
5097                 return 1;
5098         }
5099         return 0;
5100 }
5101
5102 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5103 {
5104         return 0;
5105 }
5106
5107 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5108         int button_press, int &redraw, int &rerender)
5109 {
5110         Plugin *plugin = 0;
5111         int result = 0;
5112         int done = 0;
5113         int64_t x, y, w, h;
5114         Track *track = 0;
5115
5116         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5117                 if(!track->expand_view) continue;
5118
5119                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5120                         // first check if plugins are visible at all
5121                         if (!track->expand_view)
5122                                 continue;
5123                         PluginSet *plugin_set = track->plugin_set.values[i];
5124                         for(plugin = (Plugin*)plugin_set->first;
5125                                 plugin && !done;
5126                                 plugin = (Plugin*)plugin->next) {
5127                                 plugin_dimensions(plugin, x, y, w, h);
5128                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5129                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5130                                         if(cursor_x >= x && cursor_x < x + w &&
5131                                                 cursor_y >= y && cursor_y < y + h) {
5132                                                 done = 1;
5133                                                 break;
5134                                         }
5135                                 }
5136                         }
5137                 }
5138         }
5139
5140         if(plugin) {
5141 // Start plugin popup
5142                 if(button_press) {
5143                         if(get_buttonpress() == RIGHT_BUTTON ) {
5144                                 gui->plugin_menu->update(plugin);
5145                                 gui->plugin_menu->activate_menu();
5146                                 result = 1;
5147                         }
5148                         else if (get_double_click() && !drag_start) {
5149 // Select range of plugin on doubleclick over plugin
5150                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5151                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5152                                         plugin->track->from_units(plugin->length));
5153                                 if(mwindow->edl->session->cursor_on_frames) {
5154                                         mwindow->edl->local_session->set_selectionstart(
5155                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5156                                         mwindow->edl->local_session->set_selectionend(
5157                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5158                                 }
5159                                 rerender = 1;
5160                                 redraw = 1;
5161                                 result = 1;
5162                         }
5163                 }
5164                 else
5165 // Move plugin
5166                 if( drag_start && plugin->track->record && !plugin->silence() ) {
5167                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5168                                 if( plugin->track->data_type == TRACK_AUDIO )
5169                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5170                                 else if( plugin->track->data_type == TRACK_VIDEO )
5171                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5172
5173                                 mwindow->session->drag_plugin = plugin;
5174                                 mwindow->session->drag_origin_x = cursor_x;
5175                                 mwindow->session->drag_origin_y = cursor_y;
5176                                 // Where the drag started, so we know relative position inside the edit later
5177                                 mwindow->session->drag_position =
5178                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5179                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5180 // Create picon
5181                                 switch(plugin->plugin_type) {
5182                                 case PLUGIN_STANDALONE: {
5183                                         PluginServer *server =
5184                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5185                                         if( !server ) break;
5186                                         VFrame *frame = server->picon;
5187                                         if(!frame) {
5188                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5189                                                         frame = mwindow->theme->get_image("aeffect_icon");
5190                                                 }
5191                                                 else {
5192                                                         frame = mwindow->theme->get_image("veffect_icon");
5193                                                 }
5194                                         }
5195                                         int cx, cy;
5196                                         get_abs_cursor(cx, cy);
5197                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5198                                                 break; }
5199
5200                                 case PLUGIN_SHAREDPLUGIN:
5201                                 case PLUGIN_SHAREDMODULE: {
5202                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5203                                         int cx, cy;
5204                                         get_abs_cursor(cx, cy);
5205                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5206                                         break; }
5207                                 }
5208
5209                                 result = 1;
5210                         }
5211                 }
5212         }
5213
5214         return result;
5215 }
5216
5217 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5218         int button_press, int &new_cursor, int &update_cursor)
5219 {
5220         Transition *transition = 0;
5221         int result = 0;
5222         int64_t x, y, w, h;
5223
5224
5225         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5226                 if( !track->show_transitions() ) continue;
5227
5228                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5229                         if( edit->transition ) {
5230                                 edit_dimensions(edit, x, y, w, h);
5231                                 get_transition_coords(edit, x, y, w, h);
5232
5233                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5234                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5235                                         if( cursor_x >= x && cursor_x < x + w &&
5236                                                 cursor_y >= y && cursor_y < y + h ) {
5237                                                 transition = edit->transition;
5238                                                 result = 1;
5239                                                 break;
5240                                         }
5241                                 }
5242                         }
5243                 }
5244         }
5245
5246         update_cursor = 1;
5247         if(transition) {
5248                 if(!button_press) {
5249                         new_cursor = UPRIGHT_ARROW_CURSOR;
5250                 }
5251                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5252                         gui->transition_menu->update(transition);
5253                         gui->transition_menu->activate_menu();
5254                 }
5255         }
5256
5257         return result;
5258 }
5259
5260 int TrackCanvas::button_press_event()
5261 {
5262         int result = 0;
5263         int cursor_x, cursor_y;
5264         int new_cursor;
5265
5266         cursor_x = get_cursor_x();
5267         cursor_y = get_cursor_y();
5268         mwindow->session->trim_edits = 0;
5269
5270         if(is_event_win() && cursor_inside()) {
5271 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5272
5273                 result = 1;
5274                 if(!active) {
5275                         activate();
5276                 }
5277
5278                 if( get_buttonpress() == LEFT_BUTTON ) {
5279                         gui->stop_transport("TrackCanvas::button_press_event");
5280                 }
5281
5282                 int update_overlay = 0, update_cursor = 0, rerender = 0, update_message = 0;
5283
5284                 if(get_buttonpress() == WHEEL_UP) {
5285                         if(shift_down())
5286                                 mwindow->expand_sample();
5287                         else if(ctrl_down())
5288                                 mwindow->move_left(get_w()/ 10);
5289                         else
5290                                 mwindow->move_up(get_h() / 10);
5291                 }
5292                 else if(get_buttonpress() == WHEEL_DOWN) {
5293                         if(shift_down())
5294                                 mwindow->zoom_in_sample();
5295                         else if(ctrl_down())
5296                                 mwindow->move_right(get_w() / 10);
5297                         else
5298                                 mwindow->move_down(get_h() / 10);
5299                 }
5300                 else if(get_buttonpress() == 6) {
5301                         if(ctrl_down())
5302                                 mwindow->move_left(get_w());
5303                         else if(alt_down())
5304                                 mwindow->move_left(get_w() / 20);
5305                         else
5306                                 mwindow->move_left(get_w() / 5);
5307                 }
5308                 else if(get_buttonpress() == 7) {
5309                         if(ctrl_down())
5310                                 mwindow->move_right(get_w());
5311                         else if(alt_down())
5312                                 mwindow->move_right(get_w() / 20);
5313                         else
5314                                 mwindow->move_right(get_w() / 5);
5315                 }
5316                 else {
5317                         if( arrow_mode() ) do {
5318 // Test handles and resource boundaries and highlight a track
5319                                 if( do_transitions(cursor_x, cursor_y,
5320                                                 1, new_cursor, update_cursor) ) break;
5321
5322                                 if( do_keyframes(cursor_x, cursor_y,
5323                                         0, get_buttonpress(), new_cursor,
5324                                         update_cursor, rerender) ) break;
5325 // Test edit boundaries
5326                                 if( do_edit_handles(cursor_x, cursor_y,
5327                                         1, rerender, update_overlay, new_cursor,
5328                                         update_cursor) ) break;
5329 // Test plugin boundaries
5330                                 if( do_plugin_handles(cursor_x, cursor_y,
5331                                         1, rerender, update_overlay, new_cursor,
5332                                         update_cursor) ) break;
5333
5334                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5335                                         update_overlay, rerender, new_cursor,
5336                                         update_cursor) ) break;
5337
5338                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5339                                         update_cursor, rerender) ) break;
5340
5341                                 if( test_resources(cursor_x, cursor_y) ) break;
5342
5343                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5344
5345                                 update_message = 1;
5346                                 result = 0;
5347                         } while(0);
5348                         else if( ibeam_mode() ) do {
5349 // Test handles only and select a region
5350                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5351 //printf("TrackCanvas::button_press_event %d\n", position);
5352
5353                                 if( do_transitions(cursor_x, cursor_y,
5354                                                 1, new_cursor, update_cursor)) break;
5355                                 if(do_keyframes(cursor_x, cursor_y,
5356                                         0, get_buttonpress(), new_cursor,
5357                                         update_cursor, rerender)) {
5358                                         update_overlay = 1;
5359                                         break;
5360                                 }
5361 // Test edit boundaries
5362                                 if( do_edit_handles(cursor_x, cursor_y,
5363                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5364 // Test plugin boundaries
5365                                 if( do_plugin_handles(cursor_x, cursor_y,
5366                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5367
5368                                 if( do_edits(cursor_x, cursor_y,
5369                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5370
5371                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5372
5373                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5374 // Highlight selection
5375                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5376                                 rerender = start_selection(position);
5377                                 mwindow->session->current_operation = SELECT_REGION;
5378                                 update_message = 1;
5379                                 update_cursor = 1;
5380                         } while(0);
5381                 }
5382
5383                 if( rerender ) {
5384                         gui->unlock_window();
5385                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5386                         gui->lock_window("TrackCanvas::button_press_event 2");
5387 // Update faders
5388                         mwindow->update_plugin_guis();
5389                         gui->update_patchbay();
5390                 }
5391
5392                 if( update_message )
5393                         gui->default_message();
5394
5395                 if( update_overlay )
5396                         gui->draw_overlays(1);
5397
5398                 if( update_cursor < 0 ) {
5399 // double_click edit
5400                         gui->swindow->update_selection();
5401                         gui->draw_canvas(0, 0);
5402                 }
5403                 if( update_cursor ) {
5404                         gui->update_timebar(0);
5405                         gui->hide_cursor(0);
5406                         gui->show_cursor(1);
5407                         gui->zoombar->update();
5408                         gui->flash_canvas(1);
5409                 }
5410         }
5411
5412         return result;
5413 }
5414
5415 int TrackCanvas::start_selection(double position)
5416 {
5417         int rerender = 0;
5418         position = mwindow->edl->align_to_frame(position, 1);
5419
5420
5421 // Extend a border
5422         if(shift_down())
5423         {
5424                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5425                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5426
5427                 if(position < midpoint)
5428                 {
5429                         mwindow->edl->local_session->set_selectionstart(position);
5430                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5431 // Que the CWindow
5432                         rerender = 1;
5433                 }
5434                 else
5435                 {
5436                         mwindow->edl->local_session->set_selectionend(position);
5437                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5438 // Don't que the CWindow for the end
5439                 }
5440         }
5441         else
5442 // Start a new selection
5443         {
5444 //printf("TrackCanvas::start_selection %f\n", position);
5445                 mwindow->edl->local_session->set_selectionstart(position);
5446                 mwindow->edl->local_session->set_selectionend(position);
5447                 selection_midpoint = position;
5448 // Que the CWindow
5449                 rerender = 1;
5450         }
5451
5452         return rerender;
5453 }
5454
5455 void TrackCanvas::end_edithandle_selection()
5456 {
5457         mwindow->modify_edithandles();
5458 }
5459
5460 void TrackCanvas::end_pluginhandle_selection()
5461 {
5462         mwindow->modify_pluginhandles();
5463 }
5464
5465
5466 double TrackCanvas::time_visible()
5467 {
5468         return (double)get_w() *
5469                 mwindow->edl->local_session->zoom_sample /
5470                 mwindow->edl->session->sample_rate;
5471 }
5472
5473
5474 void TrackCanvas::show_message(Auto *current, int color, const char *fmt, ...)
5475 {
5476         char string[BCTEXTLEN];
5477         char *cp = string, *ep = cp + sizeof(string)-1;
5478         if( color >= 0 ) {
5479                 cp += snprintf(string, ep-cp, "%-8s ",
5480                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5481         }
5482         char string2[BCTEXTLEN];
5483         Units::totext(string2,
5484                 current->autos->track->from_units(current->position),
5485                 mwindow->edl->session->time_format,
5486                 mwindow->edl->session->sample_rate,
5487                 mwindow->edl->session->frame_rate,
5488                 mwindow->edl->session->frames_per_foot);
5489         cp += snprintf(cp, ep-cp, "%s", string2);
5490         va_list ap;
5491         va_start(ap, fmt);
5492         vsnprintf(cp, ep-cp, fmt, ap);
5493         va_end(ap);
5494         gui->show_message(string, color);
5495 }
5496
5497 // Patchbay* TrackCanvas::get_patchbay()
5498 // {
5499 //      if(pane->patchbay) return pane->patchbay;
5500 //      if(gui->total_panes() == 2 &&
5501 //              gui->pane[TOP_LEFT_PANE] &&
5502 //              gui->pane[TOP_RIGHT_PANE])
5503 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5504 //      if(gui->total_panes() == 4)
5505 //      {
5506 //              if(pane->number == TOP_RIGHT_PANE)
5507 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5508 //              else
5509 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5510 //      }
5511 //
5512 //      return 0;
5513 // }
5514
5515