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