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                 int64_t track_x, track_y, track_w, track_h;
 884                 track_dimensions(current,
 885                         track_x, track_y, track_w, track_h);
 886                 set_color((~get_resources()->get_bg_color()) & 0xffffff);
 887                 set_opaque();
 888                 int x1 = track_x, x2 = x1+track_w;
 889                 int y1 = track_y+track_h-1;
 890                 draw_line(x1,y1, x2,y1, background_pixmap);
 891         }
 892
 893
 894 // Delete unused pixmaps
 895         if(debug) PRINT_TRACE
 896         if(!indexes_only)
 897                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 898                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 899                         {
 900 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 901                                 delete gui->resource_pixmaps.values[i];
 902                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 903                         }
 904         if(debug) PRINT_TRACE
 905
 906         if(hourglass_enabled)
 907         {
 908                 stop_hourglass();
 909                 hourglass_enabled = 0;
 910         }
 911         if(debug) PRINT_TRACE
 912
 913 // can't stop thread here, because this is called for every pane
 914 //      if(mode != IGNORE_THREAD && !indexes_only)
 915 //              gui->resource_thread->start_draw();
 916         if(debug) PRINT_TRACE
 917
 918
 919 }
 920
 921 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 922         int64_t edit_x,
 923         int64_t pixmap_x,
 924         int64_t pixmap_w,
 925         int64_t pixmap_h)
 926 {
 927         ResourcePixmap *result = 0;
 928
 929         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 930         {
 931 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 932                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 933                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 934                 {
 935                         result = gui->resource_pixmaps.values[i];
 936                         break;
 937                 }
 938         }
 939
 940         if(!result)
 941         {
 942 //SET_TRACE
 943                 result = new ResourcePixmap(mwindow,
 944                         gui,
 945                         edit,
 946                         pane->number,
 947                         pixmap_w,
 948                         pixmap_h);
 949 //SET_TRACE
 950                 gui->resource_pixmaps.append(result);
 951         }
 952
 953 //      result->resize(pixmap_w, pixmap_h);
 954         return result;
 955 }
 956
 957 void TrackCanvas::get_pixmap_size(Edit *edit,
 958         int64_t edit_x,
 959         int64_t edit_w,
 960         int64_t &pixmap_x,
 961         int64_t &pixmap_w,
 962         int64_t &pixmap_h)
 963 {
 964
 965 // Align x on frame boundaries
 966
 967
 968 //      switch(edit->edits->track->data_type)
 969 //      {
 970 //              case TRACK_AUDIO:
 971
 972                         pixmap_x = edit_x;
 973                         pixmap_w = edit_w;
 974                         if(pixmap_x < 0)
 975                         {
 976                                 pixmap_w -= -edit_x;
 977                                 pixmap_x = 0;
 978                         }
 979
 980                         if(pixmap_x + pixmap_w > get_w())
 981                         {
 982                                 pixmap_w = get_w() - pixmap_x;
 983                         }
 984
 985 //                      break;
 986 //
 987 //              case TRACK_VIDEO:
 988 //              {
 989 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 990 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 991 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 992 //                      int64_t pixmap_x1 = edit_x;
 993 //                      int64_t pixmap_x2 = edit_x + edit_w;
 994 //
 995 //                      if(pixmap_x1 < 0)
 996 //                      {
 997 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
 998 //                                      pixel_increment +
 999 //                                      edit_x;
1000 //                      }
1001 //
1002 //                      if(pixmap_x2 > get_w())
1003 //                      {
1004 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
1005 //                                      pixel_increment +
1006 //                                      edit_x;
1007 //                      }
1008 //                      pixmap_x = pixmap_x1;
1009 //                      pixmap_w = pixmap_x2 - pixmap_x1;
1010 //                      break;
1011 //              }
1012 //      }
1013
1014         pixmap_h = mwindow->edl->local_session->zoom_track;
1015         Track *track = edit->edits->track;
1016         if( track->show_titles() )
1017                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
1018 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
1019 }
1020
1021 void TrackCanvas::edit_dimensions(Edit *edit,
1022         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1023 {
1024         x = Units::round(edit->track->from_units(edit->startproject) *
1025                         mwindow->edl->session->sample_rate /
1026                         mwindow->edl->local_session->zoom_sample -
1027                         mwindow->edl->local_session->view_start[pane->number]);
1028
1029         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1030
1031 // Method for calculating w so when edits are together we never get off by one error due to rounding
1032         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
1033                         mwindow->edl->session->sample_rate /
1034                         mwindow->edl->local_session->zoom_sample -
1035                         mwindow->edl->local_session->view_start[pane->number]);
1036         w = x_next - x;
1037
1038         int edit_h = 0;
1039         if( edit->track->show_titles() )
1040                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
1041         if( edit->track->show_assets() )
1042                 edit_h += resource_h();
1043         h = edit_h;
1044 }
1045
1046 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1047 {
1048         x = 0;
1049         w = get_w();
1050         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1051         h = track->vertical_span(mwindow->theme);
1052 }
1053
1054
1055 void TrackCanvas::draw_paste_destination()
1056 {
1057         //int cursor_x = get_relative_cursor_x();
1058         //int cursor_y = get_relative_cursor_y();
1059         int current_atrack = 0;
1060         int current_vtrack = 0;
1061         int current_aedit = 0;
1062         int current_vedit = 0;
1063         int64_t w = 0;
1064         int64_t x;
1065         double position;
1066         int insertion  = 0;
1067
1068 //if(pane->number == BOTTOM_RIGHT_PANE)
1069 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1070
1071         if((mwindow->session->current_operation == DRAG_ASSET &&
1072                         (mwindow->session->drag_assets->total ||
1073                         mwindow->session->drag_clips->total)) ||
1074                 (mwindow->session->current_operation == DRAG_EDIT &&
1075                         mwindow->session->drag_edits->total)) {
1076                 Indexable *indexable = 0;
1077                 EDL *clip = 0;
1078                 //int draw_box = 0;
1079
1080                 if(mwindow->session->current_operation == DRAG_ASSET &&
1081                         mwindow->session->drag_assets->size())
1082                         indexable = mwindow->session->drag_assets->get(0);
1083
1084                 if(mwindow->session->current_operation == DRAG_ASSET &&
1085                         mwindow->session->drag_clips->size())
1086                         clip = mwindow->session->drag_clips->get(0);
1087
1088                 int has_audio = 0, has_video = 0;
1089                 double paste_audio_length = 0, paste_video_length = 0;
1090                 double paste_audio_position = -1, paste_video_position = -1;
1091
1092                 if( indexable ) {
1093                         has_audio = indexable->have_audio();
1094                         paste_audio_length = !has_audio ? 0 :
1095                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1096                         has_video = indexable->have_video();
1097                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1098                         // Images have length -1
1099                         if( asset && asset->video_data && asset->video_length < 0 ) {
1100                                 paste_video_length = mwindow->edl->session->si_useduration ?
1101                                         mwindow->edl->session->si_duration / asset->frame_rate :
1102                                         1.0 / asset->frame_rate ;  // 1 frame
1103                         }
1104                         else
1105                                 paste_video_length = !has_video ? 0 :
1106                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1107                 }
1108
1109                 if( clip ) {
1110                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1111                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1112                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1113                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1114                 }
1115
1116 // 'Align cursor on frame' lengths calculations
1117                 if( mwindow->edl->session->cursor_on_frames ) {
1118                         double fps = mwindow->edl->session->frame_rate;
1119                         double aud = floor(paste_audio_length * fps) / fps;
1120                         double vid = floor(paste_video_length * fps) / fps;
1121                         double length = has_video && has_audio ?
1122                                         aud < vid ? aud : vid :
1123                                 has_video ? vid :
1124                                 has_audio ? aud : 0;
1125                         paste_video_length = paste_audio_length = length;
1126                 }
1127
1128                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1129                         int64_t length = 0;
1130                         switch( mwindow->session->track_highlighted->data_type ) {
1131                         case TRACK_VIDEO: length = paste_video_length;  break;
1132                         case TRACK_AUDIO: length = paste_audio_length;  break;
1133                         }
1134                         int64_t asset_length = mwindow->session->track_highlighted->
1135                                 to_units(length, 1);
1136                         paste_audio_position = mwindow->session->track_highlighted->
1137                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1138                 }
1139                 if( has_video ) {
1140                         int64_t asset_length = mwindow->session->track_highlighted->
1141                                 to_units(paste_video_length, 1);
1142                         paste_video_position = mwindow->session->track_highlighted->
1143                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1144                 }
1145
1146 // Get destination track
1147                 for(Track *dest = mwindow->session->track_highlighted;
1148                         dest;
1149                         dest = dest->next) {
1150                         if(dest->record) {
1151 // Get source width in pixels
1152                                 w = -1;
1153 // Use start of highlighted edit
1154                                 if(mwindow->session->edit_highlighted) {
1155                                         position = mwindow->session->track_highlighted->from_units(
1156                                                 mwindow->session->edit_highlighted->startproject);
1157                                 }
1158                                 else {
1159 // Use end of highlighted track, disregarding effects
1160                                         position = mwindow->session->track_highlighted->from_units(
1161                                                 mwindow->session->track_highlighted->edits->length());
1162                                 }
1163
1164 // Get the x coordinate
1165                                 x = Units::to_int64(position *
1166                                         mwindow->edl->session->sample_rate /
1167                                         mwindow->edl->local_session->zoom_sample) -
1168                                         mwindow->edl->local_session->view_start[pane->number];
1169
1170                                 double paste_position = -1.;
1171                                 if(dest->data_type == TRACK_AUDIO) {
1172                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1173 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1174                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1175                                                         indexable->get_sample_rate() *
1176                                                         mwindow->edl->session->sample_rate /
1177                                                         mwindow->edl->local_session->zoom_sample);
1178                                                 paste_position = paste_audio_position;
1179                                         }
1180                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1181                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1182                                                         mwindow->edl->session->sample_rate /
1183                                                         mwindow->edl->local_session->zoom_sample);
1184                                                 paste_position = paste_audio_position;
1185 //printf("draw_paste_destination %d\n", x);
1186                                         }
1187                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1188                                                 current_aedit < mwindow->session->drag_edits->total) {
1189                                                 Edit *edit;
1190                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1191                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1192                                                         current_aedit++;
1193
1194                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1195                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1196                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1197                                                         paste_position = mwindow->session->track_highlighted->
1198                                                                 from_units(drop_edit_position(&insertion,
1199                                                                         mwindow->session->drag_edit,
1200                                                                         mwindow->session->drag_edit->length));
1201                                                         current_aedit++;
1202                                                 }
1203                                         }
1204                                         if( paste_position >= 0 ) {
1205                                                 position = paste_position;
1206                                                 current_atrack++;
1207                                                 //draw_box = 1;
1208                                         }
1209                                         else
1210                                                 w = -1;
1211                                 }
1212                                 else if(dest->data_type == TRACK_VIDEO) {
1213 //printf("draw_paste_destination 1\n");
1214                                         if(indexable && current_vtrack < indexable->get_video_layers())
1215                                         {
1216                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1217                                                         indexable->get_frame_rate() *
1218                                                         mwindow->edl->session->sample_rate /
1219                                                         mwindow->edl->local_session->zoom_sample);
1220                                                 paste_position = paste_video_position;
1221                                         }
1222                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1223                                                 w = Units::to_int64(clip->tracks->total_length() *
1224                                                         mwindow->edl->session->sample_rate /
1225                                                         mwindow->edl->local_session->zoom_sample);
1226                                                 paste_position = paste_video_position;
1227                                         }
1228                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1229                                                 current_vedit < mwindow->session->drag_edits->total) {
1230                                                 Edit *edit;
1231                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1232                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1233                                                         current_vedit++;
1234
1235                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1236                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1237                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1238                                                                 mwindow->edl->session->sample_rate /
1239                                                                 mwindow->edl->local_session->zoom_sample);
1240                                                         paste_position = mwindow->session->track_highlighted->
1241                                                                 from_units(drop_edit_position(&insertion,
1242                                                                         mwindow->session->drag_edit,
1243                                                                         mwindow->session->drag_edit->length));
1244                                                         current_vedit++;
1245                                                 }
1246                                         }
1247                                         if( paste_position >= 0 ) {
1248                                                 position = paste_position;
1249                                                 current_vtrack++;
1250                                                 //draw_box = 1;
1251                                         }
1252                                         else
1253                                                 w = -1;
1254                                 }
1255
1256                                 if(w >= 0) {
1257 // Get the x coordinate
1258                                         x = Units::to_int64(position *
1259                                                 mwindow->edl->session->sample_rate /
1260                                                 mwindow->edl->local_session->zoom_sample) -
1261                                                 mwindow->edl->local_session->view_start[pane->number];
1262                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1263                                         int h = dest->vertical_span(mwindow->theme);
1264
1265 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1266                                         if(x < -BC_INFINITY) {
1267                                                 w -= -BC_INFINITY - x;
1268                                                 x += -BC_INFINITY - x;
1269                                         }
1270                                         w = MIN(65535, w);
1271 // if(pane->number == TOP_RIGHT_PANE)
1272 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1273 // __LINE__, x, y, w, h);
1274                                         if (insertion)
1275                                                 draw_highlight_insertion(x, y, w, h);
1276                                         else
1277                                                 draw_highlight_rectangle(x, y, w, h);
1278                                 }
1279                         }
1280                 }
1281         }
1282 }
1283
1284 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1285 {
1286         x = Units::round(plugin->track->from_units(plugin->startproject) *
1287                 mwindow->edl->session->sample_rate /
1288                 mwindow->edl->local_session->zoom_sample -
1289                 mwindow->edl->local_session->view_start[pane->number]);
1290         w = Units::round(plugin->track->from_units(plugin->length) *
1291                 mwindow->edl->session->sample_rate /
1292                 mwindow->edl->local_session->zoom_sample);
1293         y = plugin->track->y_pixel
1294                 - mwindow->edl->local_session->track_start[pane->number];
1295         if( plugin->track->show_titles() )
1296                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1297         if( plugin->track->show_assets() )
1298                 y += resource_h();
1299         y += plugin->plugin_set->get_number() *
1300                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1301         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1302 }
1303
1304 int TrackCanvas::resource_h()
1305 {
1306         return mwindow->edl->local_session->zoom_track;
1307 }
1308
1309 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1310 {
1311
1312 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1313 // just draw arrows, so user has indication that something is there
1314 // FIXME: get better colors
1315
1316         if (x + w <= 0)
1317         {
1318                 draw_triangle_left(0, y + h /6,
1319                         h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1320                 return;
1321         } else
1322         if (x >= get_w())
1323         {
1324                 draw_triangle_right(get_w() - h * 2/3, y + h /6,
1325                         h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1326                 return;
1327         }
1328
1329 // Fix bug in heroines & cvs version as of 22.8.2005:
1330 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1331         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1332         if(x < -10) { w += x - -10;  x = -10; }
1333         if(y < -10) { h += y - -10;  y = -10; }
1334
1335         w = MIN(w, get_w() + 20);
1336         h = MIN(h, get_h() + 20);
1337         if(w > 0 && h > 0)
1338         {
1339                 set_color(mwindow->preferences->highlight_inverse);
1340                 set_inverse();
1341                 //draw_rectangle(x, y, w, h);
1342                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1343                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1344                 set_opaque();
1345                 draw_rectangle(x, y, w, h);
1346         }
1347 //if(pane->number == TOP_RIGHT_PANE)
1348 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1349 }
1350
1351 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1352 {
1353
1354 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1355 // just draw arrows, so user has indication that something is there
1356 // FIXME: get better colors
1357
1358
1359
1360         int h1 = h / 8;
1361         int h2 = h / 4;
1362
1363         set_inverse();
1364
1365 /* these don't look so good
1366
1367         draw_line(x, y, x, y+h);
1368         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1369         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1370         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1371         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1372 */
1373         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1374         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1375
1376 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1377         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1378         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1379         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1380 */
1381         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1382         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1383
1384 // draw the box centred around x
1385         x -= w / 2;
1386 // Fix bug in heroines & cvs version as of 22.8.2005:
1387 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1388         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1389         if(x < -10) { w += x - -10;  x = -10; }
1390         if(y < -10) { h += y - -10;  y = -10; }
1391         w = MIN(w, get_w() + 20);
1392         h = MIN(h, get_h() + 20);
1393         set_color(mwindow->preferences->highlight_inverse);
1394         set_inverse();
1395         draw_rectangle(x, y, w, h);
1396         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1397         set_opaque();
1398 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1399 }
1400
1401 void TrackCanvas::draw_playback_cursor()
1402 {
1403 // Called before playback_cursor exists
1404 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1405 //      {
1406 //              mwindow->playback_cursor->visible = 0;
1407 //              mwindow->playback_cursor->draw();
1408 //      }
1409 }
1410
1411 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1412 {
1413         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1414         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1415
1416         edit_dimensions(edit, x, y, w, h);
1417
1418         if( edit->track->show_titles() )
1419                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1420
1421         if(side == EDIT_OUT)
1422                 x += w - handle_w;
1423
1424         h = handle_h;
1425         w = handle_w;
1426 }
1427
1428 void TrackCanvas::get_transition_coords(Edit *edit,
1429                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1430 {
1431         int transition_w = xS(30), transition_h = yS(30);
1432         int has_titles = edit->track->show_titles();
1433         int has_assets = edit->track->show_assets();
1434         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1435         double asset_h = resource_h();
1436         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
1437         double dy = has_titles ?
1438                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2 ) :
1439                 ( has_assets ? asset_h/2 : 0) ;
1440         double title_h = mwindow->theme->title_h;
1441         if( dy < title_h / 2 ) { ys = title_h;  dy = ys / 2; }
1442         y += dy;
1443
1444         x -= transition_w / 2;
1445         y -= transition_h / 2;
1446         w = transition_w;
1447         h = transition_h;
1448 }
1449
1450 void TrackCanvas::draw_highlighting()
1451 {
1452         int64_t x, y, w, h;
1453         int draw_box = 0;
1454
1455         switch(mwindow->session->current_operation)
1456         {
1457                 case DRAG_ATRANSITION:
1458                 case DRAG_VTRANSITION:
1459 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1460 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1461                         if(mwindow->session->edit_highlighted) {
1462                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1463                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1464                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1465                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1466                                         edit_dimensions(mwindow->session->edit_highlighted,
1467                                                 x, y, w, h);
1468                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1469                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1470                                                 draw_box = 1;
1471                                                 get_transition_coords(mwindow->session->edit_highlighted,
1472                                                         x, y, w, h);
1473                                         }
1474                                 }
1475                         }
1476                         break;
1477
1478 // Dragging a new effect from the Resource window
1479                 case DRAG_AEFFECT:
1480                 case DRAG_VEFFECT:
1481                         if(mwindow->session->track_highlighted &&
1482                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1483                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1484                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1485                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1486 // Put it before another plugin
1487                                 if(mwindow->session->plugin_highlighted) {
1488                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1489                                                 x, y, w, h);
1490 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1491                                 }
1492 // Put it after a plugin set
1493                                 else if( mwindow->session->pluginset_highlighted &&
1494                                          mwindow->session->pluginset_highlighted->last ) {
1495                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1496                                                 x, y, w, h);
1497 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1498                                         int64_t track_x, track_y, track_w, track_h;
1499                                         track_dimensions(mwindow->session->track_highlighted,
1500                                                 track_x, track_y, track_w, track_h);
1501
1502                                         x += w;
1503                                         w = Units::round(
1504                                                         mwindow->session->track_highlighted->get_length() *
1505                                                         mwindow->edl->session->sample_rate /
1506                                                         mwindow->edl->local_session->zoom_sample -
1507                                                         mwindow->edl->local_session->view_start[pane->number]) -
1508                                                 x;
1509 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1510                                         if(w <= 0) w = track_w;
1511                                 }
1512                                 else {
1513                                         track_dimensions(mwindow->session->track_highlighted,
1514                                                 x, y, w, h);
1515
1516 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1517 // Put it in a new plugin set determined by the selected range
1518                                         if(mwindow->edl->local_session->get_selectionend() >
1519                                                 mwindow->edl->local_session->get_selectionstart()) {
1520                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1521                                                         mwindow->edl->session->sample_rate /
1522                                                         mwindow->edl->local_session->zoom_sample -
1523                                                         mwindow->edl->local_session->view_start[pane->number]);
1524                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1525                                                         mwindow->edl->local_session->get_selectionstart()) *
1526                                                         mwindow->edl->session->sample_rate /
1527                                                         mwindow->edl->local_session->zoom_sample);
1528                                         }
1529 // Put it in a new plugin set determined by an edit boundary
1530                                         else if(mwindow->session->edit_highlighted) {
1531                                                 int64_t temp_y, temp_h;
1532                                                 edit_dimensions(mwindow->session->edit_highlighted,
1533                                                         x, temp_y, w, temp_h);
1534                                         }
1535 // Put it at the beginning of the track in a new plugin set
1536                                 }
1537
1538                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1539                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1540 //printf("TrackCanvas::draw_highlighting 1\n");
1541                                         draw_box = 1;
1542                                 }
1543                         }
1544                         break;
1545
1546                 case DRAG_ASSET:
1547                         if(mwindow->session->track_highlighted) {
1548 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1549
1550 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1551 //                              {
1552                                         draw_paste_destination();
1553 //                              }
1554                         }
1555                         break;
1556
1557                 case DRAG_EDIT:
1558                         if(mwindow->session->track_highlighted) {
1559 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1560 //
1561 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1562                                         draw_paste_destination();
1563 //                              }
1564                         }
1565                         break;
1566                 case DRAG_GROUP:
1567                         if( mwindow->session->track_highlighted && mwindow->session->drag_group &&
1568                             mwindow->session->drag_group_edit && mwindow->session->drag_group_first_track ) {
1569                                 Track *track = mwindow->session->track_highlighted;
1570                                 EDL *drag_group = mwindow->session->drag_group;
1571                                 Track *edit_track = mwindow->session->drag_group_edit->track;
1572                                 Track *drag_track = mwindow->session->drag_group_first_track;
1573                                 while( track && edit_track && edit_track != drag_track ) {
1574                                         edit_track = edit_track->previous;
1575                                         track = track->previous;
1576                                 }
1577                                 int cx = get_cursor_x();
1578                                 double cur_pos = mwindow->session->drag_group_position;
1579                                 double new_pos = mwindow->edl->get_cursor_position(cx, pane->number);
1580                                 new_pos -= mwindow->session->drag_position - cur_pos;
1581                                 new_pos = mwindow->edl->align_to_frame(new_pos, 0);
1582                                 double drop_position = new_pos;
1583                                 int color = GREEN;
1584                                 int ret = test_track_group(drag_group, track, new_pos);
1585                                 if( ret < 0 )
1586                                         color = ORANGE;
1587                                 else if( !ret ) {
1588                                         if( new_pos != drop_position ) {
1589                                                 double pos = new_pos;
1590                                                 pos += mwindow->session->drag_position - cur_pos;
1591                                                 cx = mwindow->edl->get_position_cursorx(pos, pane->number);
1592                                                 ret = test_track_group(drag_group, track, new_pos);
1593                                         }
1594                                         color = ret > 0 ? YELLOW : shift_down() ? RED : BLUE;
1595                                 }
1596                                 track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1597                                 int dx = cx - mwindow->session->drag_origin_x;
1598                                 int dy = y - mwindow->session->drag_origin_y;
1599                                 draw_selected_edits(mwindow->edl, dx, dy, color, -1);
1600                         }
1601                         break;
1602 // Dragging an effect from the timeline
1603                 case DRAG_AEFFECT_COPY:
1604                 case DRAG_VEFFECT_COPY:
1605                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1606                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1607                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1608                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1609                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1610
1611                                 int64_t plugin_position = -1;
1612                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1613                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1614                                 Track *hi_track = mwindow->session->track_highlighted;
1615                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1616 // Put it into a silence zone
1617                                 if( hi_plugin_set && hi_plugin_set->last &&
1618                                     hi_plugin_set->track == drag_plugin->track ) {
1619                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1620                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1621                                         hi_track = drag_plugin->track;
1622                                 }
1623                                 else if( hi_track ) {
1624 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1625                                         track_dimensions(hi_track, x, y, w, h);
1626                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1627                                 }
1628
1629                                 if( plugin_position < 0 ) break;
1630
1631 // Calculate length of plugin based on data type of track and units
1632                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1633                                                 mwindow->edl->local_session->zoom_sample;
1634                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1635                                                 mwindow->edl->local_session->view_start[pane->number];
1636                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1637
1638                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1639                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1640                                         draw_box = 1;
1641                                 }
1642                         }
1643                         break;
1644
1645                 case DRAG_PLUGINKEY:
1646                         if(mwindow->session->plugin_highlighted &&
1647                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1648                         {
1649 // Just highlight the plugin
1650                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1651
1652                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1653                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1654                                 {
1655                                         draw_box = 1;
1656                                 }
1657                         }
1658                         break;
1659
1660         }
1661
1662         if( draw_box )
1663                 draw_highlight_rectangle(x, y, w, h);
1664
1665         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1666 }
1667
1668 // x does not reliably draw a really big rectangle
1669 void TrackCanvas::draw_selected(int x, int y, int w, int h)
1670 {
1671         int x1 = bmax(x, 0), x2 = bmin(x+w, get_w());
1672         if( x1 > x2 ) return;
1673         int y1 = bmax(y, 0), y2 = bmin(y+h, get_h());
1674         if( y1 > y2 ) return;
1675         if( x   >= 0 && x   < get_w() ) draw_line(x,y1,   x,y2);
1676         if( x+w >= 0 && x+w < get_w() ) draw_line(x+w,y1, x+w,y2);
1677         if( y   >= 0 && y   < get_h() ) draw_line(x1,y,   x2,y);
1678         if( y+h >= 0 && y+h < get_h() ) draw_line(x1,y+h, x2,y+h);
1679 }
1680
1681 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1682 {
1683         int dropping = 0;
1684         for( Track *track=edl->tracks->first; track; track=track->next ) {
1685                 if( !track->record && color1 < 0 ) {
1686                         if( dropping )
1687                                 dy -= track->vertical_span(mwindow->theme);
1688                         continue;
1689                 }
1690                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1691                         if( !edit->is_selected ) continue;
1692                         dropping = 1;
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                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1702                         set_color(track->record ? inner : outer);
1703                         draw_selected(x, y, w, h);
1704                         set_color(track->record ? outer : inner);
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) + xS(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) + xS(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) + xS(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         if( !mwindow->edl->session->auto_conf->hard_edges )
1892                 return;
1893         int64_t x, y, w, h;
1894
1895         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1896                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1897                         if( !edit->hard_left && !edit->hard_right ) continue;
1898                         edit_dimensions(edit, x, y, w, h);
1899                         set_color(GREEN);
1900                         set_opaque();
1901                         int y1 = y;
1902                         if( track->show_titles() )
1903                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1904                         if( track->show_assets() )
1905                                 y1 += resource_h();
1906                         if( y1 == y )
1907                                 y1 += mwindow->theme->title_h;
1908                         if( edit->hard_left ) {
1909                                 ArrayList<int> xpt, ypt;
1910                                 xpt.append(x);              ypt.append(y1);
1911                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1912                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1913                                 fill_polygon(&xpt, &ypt);
1914                         }
1915                         if( edit->hard_right ) {
1916                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1917                                 xpt.append(x1);            ypt.append(y1);
1918                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1919                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1920                                 fill_polygon(&xpt, &ypt);
1921                         }
1922                 }
1923         }
1924 }
1925
1926 void TrackCanvas::draw_inout_points()
1927 {
1928 }
1929
1930
1931 void TrackCanvas::draw_drag_handle()
1932 {
1933         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 &&
1934             mwindow->session->current_operation != DRAG_PLUGINHANDLE2 ) return;
1935         int64_t pixel1 = Units::round(mwindow->session->drag_position *
1936                 mwindow->edl->session->sample_rate /
1937                 mwindow->edl->local_session->zoom_sample -
1938                 mwindow->edl->local_session->view_start[pane->number]);
1939         set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1940         set_inverse();
1941         draw_line(pixel1, 0, pixel1, get_h());
1942         set_opaque();
1943
1944         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 ) return;
1945         if( !mwindow->session->drag_edit ) return;
1946         int group_id = mwindow->session->drag_edit->group_id;
1947         if( !group_id ) return;
1948         int64_t dx, dy, dw, dh;
1949         edit_dimensions(mwindow->session->drag_edit, dx, dy, dw, dh);
1950         int drag_handle = mwindow->session->drag_handle;
1951         int64_t pixel0 = !drag_handle ? dx : dx + dw;
1952         int delta = pixel1 - pixel0;
1953         set_color(LTPURPLE);
1954         set_line_width(3);
1955
1956         for( Track *track=mwindow->edl->tracks->first; track; track=track->next ) {
1957                 Edit *left = 0, *right = 0;
1958                 double start = DBL_MAX, end = DBL_MIN;
1959                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1960                         if( edit->group_id != group_id ) continue;
1961                         double edit_start = edit->track->from_units(edit->startproject);
1962                         if( edit_start < start ) { start = edit_start;  left = edit; }
1963                         double edit_end = edit->track->from_units(edit->startproject+edit->length);
1964                         if( edit_end > end ) { end = edit_end;  right = edit; }
1965                 }
1966                 Edit *edit = !drag_handle ? left : right;
1967                 if( !edit ) continue;
1968                 Indexable *idxbl = edit->asset;
1969                 if( !idxbl ) idxbl = edit->nested_edl;
1970                 int can_drag = idxbl ? 1 : 0;
1971                 if( drag_handle ) {
1972                         int64_t source_len = !idxbl ? -1 :
1973                                 edit->track->data_type == TRACK_AUDIO ?
1974                                         idxbl->get_audio_samples() :
1975                                 edit->track->data_type == TRACK_VIDEO ?
1976                                         idxbl->get_video_frames() : -1;
1977                         if( edit->startsource + edit->length >= source_len )
1978                                 can_drag = 0;
1979                 }
1980                 else if( !edit->startsource )
1981                         can_drag = 0;
1982                 int64_t x, y, w, h;
1983                 edit_dimensions(edit, x, y, w, h);
1984                 if( y+h < 0 || y >= get_h() ) continue;
1985                 int edge_x = !drag_handle ? x : x + w;
1986                 int edge_y = y + h/2, xs10 = xS(10), ys10 = yS(10);
1987                 if( edge_x >= 0 && edge_x < get_w() ) {
1988                         if( !can_drag ) {
1989                                 draw_line(edge_x-xs10,edge_y-ys10, edge_x+xs10,edge_y+ys10);
1990                                 draw_line(edge_x-xs10,edge_y+ys10, edge_x+xs10,edge_y-ys10);
1991                         }
1992                         else if( !drag_handle ) {
1993                                 draw_line(edge_x+xs10,edge_y-ys10, edge_x,edge_y);
1994                                 draw_line(edge_x+xs10,edge_y+ys10, edge_x,edge_y);
1995                         }
1996                         else {
1997                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y-ys10);
1998                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y+ys10);
1999                         }
2000                 }
2001                 edge_x += delta;
2002                 if( edge_x >= 0 && edge_x < get_w() ) {
2003                         draw_line(edge_x, y, edge_x, y+h);
2004                 }
2005         }
2006         set_line_width(1);
2007 }
2008
2009
2010 void TrackCanvas::draw_transitions()
2011 {
2012         int64_t x, y, w, h;
2013
2014         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2015                 if( !track->show_transitions() ) continue;
2016
2017                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2018                         if(!edit->transition) continue;
2019                         edit_dimensions(edit, x, y, w, h);
2020                         int strip_x = x, edit_y = y;
2021                         get_transition_coords(edit, x, y, w, h);
2022                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2023                         if( track->show_assets() && track->show_titles() )
2024                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2025                         if( strip_y < edit_y ) strip_y = edit_y;
2026
2027                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2028                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2029                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2030                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2031                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2032                                                 track->data_type);
2033                                 if( !server ) continue;
2034                                 VFrame *picon = server->get_picon();
2035                                 if( !picon ) continue;
2036                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2037                                 int track_h = edit->track->vertical_span(mwindow->theme);
2038                                 if( picon_h > track_h ) picon_h = track_h;
2039                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2040                         }
2041                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2042                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2043                                 int x = strip_x, w = strip_w;
2044                                 if( x < 0 ) {  w -= -x;  x = 0; }
2045                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2046
2047                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2048                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2049                         }
2050                 }
2051         }
2052 }
2053
2054 void TrackCanvas::draw_loop_points()
2055 {
2056 //printf("TrackCanvas::draw_loop_points 1\n");
2057         if(mwindow->edl->local_session->loop_playback)
2058         {
2059 //printf("TrackCanvas::draw_loop_points 2\n");
2060                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2061                         mwindow->edl->session->sample_rate /
2062                         mwindow->edl->local_session->zoom_sample -
2063                         mwindow->edl->local_session->view_start[pane->number]);
2064 //printf("TrackCanvas::draw_loop_points 3\n");
2065
2066                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2067                 {
2068                         set_color(GREEN);
2069                         draw_line(x, 0, x, get_h());
2070                 }
2071 //printf("TrackCanvas::draw_loop_points 4\n");
2072
2073                 x = Units::round(mwindow->edl->local_session->loop_end *
2074                         mwindow->edl->session->sample_rate /
2075                         mwindow->edl->local_session->zoom_sample -
2076                         mwindow->edl->local_session->view_start[pane->number]);
2077 //printf("TrackCanvas::draw_loop_points 5\n");
2078
2079                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2080                 {
2081                         set_color(GREEN);
2082                         draw_line(x, 0, x, get_h());
2083                 }
2084 //printf("TrackCanvas::draw_loop_points 6\n");
2085         }
2086 //printf("TrackCanvas::draw_loop_points 7\n");
2087 }
2088
2089 void TrackCanvas::draw_brender_range()
2090 {
2091         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2092         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2093         if( mwindow->edl->session->brender_end > 0 )
2094         {
2095                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2096                         mwindow->edl->session->sample_rate /
2097                         mwindow->edl->local_session->zoom_sample -
2098                         mwindow->edl->local_session->view_start[pane->number]);
2099                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2100                 {
2101                         set_color(RED);
2102                         draw_line(x1, 0, x1, get_h());
2103                 }
2104                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2105                         mwindow->edl->session->sample_rate /
2106                         mwindow->edl->local_session->zoom_sample -
2107                         mwindow->edl->local_session->view_start[pane->number]);
2108
2109                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2110                 {
2111                         set_color(RED);
2112                         draw_line(x2, 0, x2, get_h());
2113                 }
2114         }
2115 }
2116
2117 // The operations which correspond to each automation type
2118 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2119 {
2120         DRAG_MUTE,
2121         DRAG_CAMERA_X,
2122         DRAG_CAMERA_Y,
2123         DRAG_CAMERA_Z,
2124         DRAG_PROJECTOR_X,
2125         DRAG_PROJECTOR_Y,
2126         DRAG_PROJECTOR_Z,
2127         DRAG_FADE,
2128         DRAG_PAN,
2129         DRAG_MODE,
2130         DRAG_MASK,
2131         DRAG_SPEED
2132 };
2133
2134 // The buttonpress operations, so nothing changes unless the mouse moves
2135 // a certain amount.  This allows the keyframe to be used to position the
2136 // insertion point without moving itself.
2137 static int pre_auto_operations[AUTOMATION_TOTAL] =
2138 {
2139         DRAG_MUTE,
2140         DRAG_CAMERA_X,
2141         DRAG_CAMERA_Y,
2142         DRAG_CAMERA_Z,
2143         DRAG_PROJECTOR_X,
2144         DRAG_PROJECTOR_Y,
2145         DRAG_PROJECTOR_Z,
2146         DRAG_FADE,
2147         DRAG_PAN_PRE,
2148         DRAG_MODE_PRE,
2149         DRAG_MASK_PRE,
2150         DRAG_SPEED
2151 };
2152
2153
2154 int TrackCanvas::do_keyframes(int cursor_x,
2155         int cursor_y,
2156         int draw,
2157         int buttonpress,
2158         int &new_cursor,
2159         int &update_cursor,
2160         int &rerender)
2161 {
2162 // Note: button 3 (right mouse button) is not eaten to allow
2163 // track context menu to appear
2164         int result = 0;
2165         EDLSession *session = mwindow->edl->session;
2166
2167
2168
2169         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2170         {
2171                 0, 0, 0, 0, 0, 0, 0, 0,
2172                 pankeyframe_pixmap,
2173                 modekeyframe_pixmap,
2174                 maskkeyframe_pixmap,
2175                 0,
2176         };
2177
2178
2179
2180         for(Track *track = mwindow->edl->tracks->first;
2181                 track && !result;
2182                 track = track->next) {
2183                 Auto *auto_keyframe = 0;
2184                 Automation *automation = track->automation;
2185
2186
2187 // Handle keyframes in reverse drawing order if a button press
2188                 int start = 0;
2189                 int end = AUTOMATION_TOTAL;
2190                 int step = 1;
2191                 if(buttonpress)
2192                 {
2193                         start = AUTOMATION_TOTAL - 1;
2194                         end = -1;
2195                         step = -1;
2196                 }
2197                 for(int i = start; i != end && !result; i += step)
2198                 {
2199 // Event not trapped and automation visible
2200                         Autos *autos = automation->autos[i];
2201                         if(!result && session->auto_conf->autos[i] && autos) {
2202                                 switch(i) {
2203                                 case AUTOMATION_MODE:
2204                                 case AUTOMATION_PAN:
2205                                 case AUTOMATION_MASK:
2206                                         result = do_autos(track, automation->autos[i],
2207                                                 cursor_x, cursor_y, draw,
2208                                                 buttonpress, auto_pixmaps[i],
2209                                                 auto_keyframe, rerender);
2210                                                 break;
2211
2212                                 default: {
2213                                         switch(autos->get_type()) {
2214                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2215                                                 Automation automation(0, track);
2216                                                 int grouptype = automation.autogrouptype(i, track);
2217                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2218                                                         mwindow->speed_before();
2219                                                 }
2220
2221                                                 if(draw) // Do dropshadow
2222                                                         result = do_float_autos(track, autos,
2223                                                                 cursor_x, cursor_y, draw,
2224                                                                 buttonpress, 1, 1, MDGREY,
2225                                                                 auto_keyframe, grouptype);
2226                                                 result = do_float_autos(track, autos,
2227                                                         cursor_x, cursor_y, draw, buttonpress,
2228                                                         0, 0, GWindowGUI::auto_colors[i],
2229                                                         auto_keyframe, grouptype);
2230
2231                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2232                                                         mwindow->speed_after(-1);
2233                                                 if( result && buttonpress ) {
2234                                                         int color = GWindowGUI::auto_colors[i];
2235                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2236                                                 }
2237                                                 break; }
2238
2239                                         case Autos::AUTOMATION_TYPE_INT: {
2240                                                 if(draw) // Do dropshadow
2241                                                         result = do_int_autos(track, autos,
2242                                                                 cursor_x, cursor_y, draw,
2243                                                                 buttonpress, 1, 1, MDGREY,
2244                                                                 auto_keyframe);
2245                                                 result = do_int_autos(track, autos,
2246                                                         cursor_x, cursor_y, draw, buttonpress,
2247                                                         0, 0, GWindowGUI::auto_colors[i],
2248                                                         auto_keyframe);
2249                                                 break; }
2250                                         }
2251                                         break; }
2252                                 }
2253
2254                                 if(result)
2255                                 {
2256                                         if(mwindow->session->current_operation == auto_operations[i])
2257                                                 rerender = 1;
2258
2259 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2260 // __LINE__,
2261 // mwindow->session->current_operation,
2262 // auto_operations[i]);
2263                                         if(buttonpress)
2264                                         {
2265                                                 if (buttonpress == 2 && auto_keyframe )
2266                                                 {
2267                                                         double position = track->from_units(auto_keyframe->position);
2268                                                         mwindow->edl->local_session->set_selectionstart(position);
2269                                                         mwindow->edl->local_session->set_selectionend(position);
2270                                                 }
2271                                                 if (buttonpress != 3)
2272                                                 {
2273                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2274                                                                 fill_ganged_autos(get_double_click(), 0, track,
2275                                                                         (FloatAuto*)mwindow->session->drag_auto);
2276                                                         mwindow->session->current_operation = pre_auto_operations[i];
2277                                                         update_drag_caption();
2278                                                         rerender = 1;
2279                                                 }
2280                                                 else if( auto_keyframe )
2281                                                 {
2282                                                         gui->keyframe_menu->update(automation,
2283                                                                 autos,
2284                                                                 auto_keyframe);
2285                                                         gui->keyframe_menu->activate_menu();
2286                                                         rerender = 1; // the position changes
2287                                                 }
2288                                                 else if( autos )
2289                                                 {
2290                                                         gui->keyframe_hide->update(autos);
2291                                                         gui->keyframe_hide->activate_menu();
2292                                                         rerender = 1; // the position changes
2293                                                 }
2294                                                 if(buttonpress == 1 && ctrl_down() &&
2295                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2296                                                         rerender = 1; // special case: curve mode changed
2297                                         }
2298                                 }
2299                         }
2300                 }
2301
2302                 if(!result && session->auto_conf->plugins) {
2303                         Plugin *plugin;
2304                         KeyFrame *keyframe;
2305                         result = do_plugin_autos(track, cursor_x, cursor_y,
2306                                 draw, buttonpress, plugin, keyframe);
2307                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2308                                 rerender = 1;
2309                         }
2310                         if(result && (buttonpress == 1)) {
2311                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2312                                 update_drag_caption();
2313                                 rerender = 1;
2314                         }
2315                         else if (result && (buttonpress == 3)) {
2316                                 gui->keyframe_menu->update(plugin, keyframe);
2317                                 gui->keyframe_menu->activate_menu();
2318                                 rerender = 1; // the position changes
2319                         }
2320                 }
2321         }
2322
2323 // Final pass to trap event
2324         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2325                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2326                         mwindow->session->current_operation == auto_operations[i]) {
2327                         result = 1;
2328                         break;
2329                 }
2330         }
2331
2332         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2333                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2334                 result = 1;
2335         }
2336
2337         update_cursor = 1;
2338         if(result) {
2339                 new_cursor = UPRIGHT_ARROW_CURSOR;
2340         }
2341
2342         return result;
2343 }
2344
2345 void TrackCanvas::draw_keyframe_reticle()
2346 {
2347         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2348         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2349
2350         int current_op = mwindow->session->current_operation, dragging = 0;
2351         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2352                 if( current_op == auto_operations[i] ) dragging = 1;
2353         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2354
2355         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2356                 mwindow->session->drag_auto->autos->autoidx : -1;
2357
2358         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2359             keyframe_hairline == HAIRLINE_DRAGGING ) {
2360                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2361                 return;
2362         }
2363
2364         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2365             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2366                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2367                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2368                         Automation *automation = track->automation;
2369                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2370                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2371                                 // automation visible
2372                                 Autos *autos = automation->autos[i];
2373                                 if( !autos ) continue;
2374                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2375                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2376                                      auto_keyframe = auto_keyframe->next ) {
2377                                         draw_hairline(auto_keyframe, BLUE, show);
2378                                 }
2379                         }
2380                 }
2381
2382                 if( dragging )
2383                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2384         }
2385 }
2386
2387 void TrackCanvas::draw_auto(Auto *current,
2388         int x,
2389         int y,
2390         int center_pixel,
2391         int zoom_track)
2392 {
2393         int x1, y1, x2, y2;
2394
2395         x1 = x - HANDLE_W / 2;
2396         x2 = x + HANDLE_W / 2;
2397         y1 = center_pixel + y - HANDLE_W / 2;
2398         y2 = center_pixel + y + HANDLE_W / 2;
2399
2400         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2401         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2402
2403         draw_box(x1, y1, x2 - x1, y2 - y1);
2404 }
2405
2406
2407 // This draws lines for bezier in & out controls
2408 void TrackCanvas::draw_cropped_line(int x1,
2409         int y1,
2410         int x2,
2411         int y2,
2412         int min_y,
2413         int max_y)
2414 {
2415
2416
2417 // Don't care about x since it is clipped by the window.
2418 // Put y coords in ascending order
2419         if(y2 < y1) {
2420                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2421                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2422         }
2423
2424
2425
2426         double slope = (double)(x2 - x1) / (y2 - y1);
2427 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2428         if(y1 < min_y) {
2429                 x1 = (int)(x1 + (min_y - y1) * slope);
2430                 y1 = min_y;
2431         }
2432         else if(y1 >= max_y) {
2433                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2434                 y1 = max_y - 1;
2435         }
2436
2437         if(y2 >= max_y) {
2438                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2439                 y2 = max_y - 1;
2440         }
2441         else if(y2 < min_y) {
2442                 x2 = (int)(x2 + (min_y - y2) * slope);
2443                 y1 = min_y;
2444         }
2445
2446
2447 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2448         if( y1 >= min_y && y1 < max_y &&
2449             y2 >= min_y && y2 < max_y )
2450                 draw_line(x1, y1, x2, y2);
2451 }
2452
2453
2454 void TrackCanvas::draw_floatauto(FloatAuto *current,
2455         int x,
2456         int y,
2457         int in_x,
2458         int in_y,
2459         int out_x,
2460         int out_y,
2461         int center_pixel,
2462         int zoom_track,
2463         int color)
2464 {
2465         int x1 = x - HANDLE_W / 2; // Center
2466         int x2 = x + HANDLE_W / 2;
2467         int y1 = center_pixel + y - HANDLE_H / 2;
2468         int y2 = center_pixel + y + HANDLE_H / 2;
2469         int ymin = center_pixel - zoom_track / 2;
2470         int ymax = center_pixel + zoom_track / 2;
2471         CLAMP(y1, ymin, ymax);
2472         CLAMP(y2, ymin, ymax);
2473
2474         if( y2-1 > y1 ) {
2475                 if( current->curve_mode == FloatAuto::LINEAR ) {
2476                         draw_box(x1, y1, x2 - x1, y2 - y1);
2477                 }
2478                 else {
2479                         ArrayList<int> polygon_x;
2480                         ArrayList<int> polygon_y;
2481                         polygon_x.append((x1 + x2) / 2 + 1);
2482                         polygon_y.append(y1 + 1);
2483                         polygon_x.append(x2 + 1);
2484                         polygon_y.append((y1 + y2) / 2 + 1);
2485                         polygon_x.append((x1 + x2) / 2 + 1);
2486                         polygon_y.append(y2 + 1);
2487                         polygon_x.append(x1 + 1);
2488                         polygon_y.append((y1 + y2) / 2 + 1);
2489                         fill_polygon(&polygon_x, &polygon_y);
2490                 }
2491         }
2492
2493 // show bezier control points (only) if this
2494 // floatauto doesn't adjust it's tangents automatically
2495         if(current->curve_mode != FloatAuto::FREE &&
2496            current->curve_mode != FloatAuto::TFREE)
2497                 return;
2498
2499         if(in_x != x)
2500                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2501         if(out_x != x)
2502                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2503 }
2504
2505 inline int quantize(float f) { return (int)floor(f + 0.5); }
2506
2507 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2508         int x, int y, int cp_x, int cp_y, int center_pixel,
2509         int zoom_track, int color)
2510 // draw the tangent and a handle for given bézier ctrl point
2511 {
2512         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2513
2514         float slope = (float)(cp_y - y)/(cp_x - x);
2515         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2516         if(slope != 0)
2517                 cp_x = x + quantize((cp_y - y) / slope);
2518
2519         y    += center_pixel;
2520         cp_y += center_pixel;
2521
2522         // drawing the tangent as a dashed line...
2523         int const dash = HANDLE_W;
2524         int const gap  = HANDLE_W / 2;
2525         float sx = 3 * (cp_x - x) / 4.;
2526         float ex = 0;
2527
2528         // q is the x displacement for a unit line of slope
2529         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2530
2531         float dist = 1/q * sx;
2532         if( dist > dash )
2533                 ex = sx - q * dash;
2534
2535         set_color(color);
2536         do {
2537                 float sy = slope * sx, ey = slope * ex;
2538                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2539                 sx = ex - q * gap;
2540                 ex = sx - q * dash;
2541         } while(q*ex > 0);
2542
2543         if(handle_visible)
2544         {
2545                 int r = HANDLE_W / 2;
2546                 int cp_x1 = cp_x - r;
2547                 int cp_y1 = cp_y - r;
2548                 set_color(BLACK);
2549                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2550                 set_color(color);
2551                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2552         }
2553 }
2554
2555
2556 int TrackCanvas::test_auto(Auto *current,
2557         int x, int y, int center_pixel, int zoom_track,
2558         int cursor_x, int cursor_y, int buttonpress)
2559 {
2560         int x1, y1, x2, y2;
2561         int result = 0;
2562
2563         x1 = x - HANDLE_W / 2;
2564         x2 = x + HANDLE_W / 2;
2565         y1 = center_pixel + y - HANDLE_H / 2;
2566         y2 = center_pixel + y + HANDLE_H / 2;
2567         int ymin = center_pixel - zoom_track / 2;
2568         int ymax = center_pixel + zoom_track / 2;
2569         CLAMP(y1, ymin, ymax);
2570         CLAMP(y2, ymin, ymax);
2571
2572         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2573         {
2574                 if(buttonpress && buttonpress != 3)
2575                 {
2576                         mwindow->session->drag_auto = current;
2577                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2578                         // Toggle Autos don't respond to vertical zoom, they always show up
2579                         // with "on" == 100% == line on top
2580                         mwindow->session->drag_start_position = current->position;
2581                         mwindow->session->drag_origin_x = cursor_x;
2582                         mwindow->session->drag_origin_y = cursor_y;
2583                 }
2584                 result = 1;
2585         }
2586
2587         if(buttonpress && buttonpress != 3 && result)
2588         {
2589 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2590                 mwindow->undo->update_undo_before();
2591         }
2592
2593         return result;
2594 }
2595
2596 // some Helpers for test_floatauto(..)
2597 // and for dragging the tangents/ctrl points
2598 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2599         float cursor_x, float cursor_y)
2600 {
2601 // Control point switched off?
2602         if( x0 == ctrl_x ) return 0.0;
2603         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2604         double x = cursor_x-x0, y = cursor_y-y0;
2605 // wrong side of ctrl handle
2606         if( x*x1 < 0 ) return 0.0;
2607 // outside handle radius
2608         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2609         double xx1 = x1*x1, yy1 = y1*y1;
2610         double xx = x*x, yy = y*y;
2611 // distance squared from cursor to cursor projected to line from ctrl to handle
2612 //   along a line perpendicular to line from ctrl to handle (closest approach)
2613 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2614         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2615         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2616 }
2617
2618
2619 inline
2620 float levered_position(float position, float ref_pos)
2621 {
2622         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2623                 return 0.0;
2624         return ref_pos / position;
2625 }
2626
2627
2628 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2629 // transforms automation value into current display coords,
2630 // dependant on current automation display range for the given kind of automation
2631 {
2632         if(!mwindow || !mwindow->edl) return 0;
2633         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2634         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2635         float automation_range = automation_max - automation_min;
2636         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2637                 return 0;
2638         return (auto_value - automation_min) / automation_range;
2639 }
2640
2641
2642
2643 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2644         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2645         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2646 {
2647         int result = 0;
2648
2649         int x1 = x - HANDLE_W / 2;
2650         int x2 = x + HANDLE_W / 2;
2651         int y1 = center_pixel + y - HANDLE_W / 2;
2652         int y2 = center_pixel + y + HANDLE_W / 2;
2653         int ymin = center_pixel - zoom_track / 2;
2654         int ymax = center_pixel + zoom_track / 2;
2655         CLAMP(y1, ymin, ymax);
2656         CLAMP(y2, ymin, ymax);
2657
2658         int in_x1 = in_x - HANDLE_W / 2;
2659         int in_x2 = in_x + HANDLE_W / 2;
2660         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2661         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2662         CLAMP(in_y1, ymin, ymax);
2663         CLAMP(in_y2, ymin, ymax);
2664
2665         int out_x1 = out_x - HANDLE_W / 2;
2666         int out_x2 = out_x + HANDLE_W / 2;
2667         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2668         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2669         CLAMP(out_y1, ymin, ymax);
2670         CLAMP(out_y2, ymin, ymax);
2671
2672
2673 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2674 // buttonpress could be the start of a drag operation
2675 #define INIT_DRAG(POS,VAL) \
2676                 mwindow->session->drag_auto = current;      \
2677                 mwindow->session->drag_origin_x = cursor_x;  \
2678                 mwindow->session->drag_origin_y = cursor_y;   \
2679                 mwindow->session->drag_start_position = (POS); \
2680                 mwindow->session->drag_start_percentage = (VAL);
2681
2682 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2683
2684
2685 // without modifier we are manipulating the automation node
2686 // with ALT it's about dragging only the value of the node
2687 // with SHIFT the value snaps to the value of neighbouring nodes
2688 // CTRL indicates we are rather manipulating the tangent(s) of the node
2689
2690         if(!ctrl_down())
2691         {
2692                 if( WITHIN(x1,x2,y1,y2))
2693                 {       // cursor hits node
2694                         result = 1;
2695
2696                         if(buttonpress && (buttonpress != 3))
2697                         {
2698                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2699                                 mwindow->session->drag_handle = 0;
2700                 }       }
2701         }
2702         else // ctrl_down()
2703         {
2704                 if( WITHIN(x1,x2,y1,y2))
2705                 {
2706                         result = 1;
2707                         if(buttonpress && (buttonpress != 3))
2708                         {
2709                                 // could be ctrl-click or ctrl-drag
2710                                 // click would cycle through tangent modes
2711                                 ((FloatAuto*)current)->toggle_curve_mode();
2712
2713                                 // drag will start dragging the tangent, if applicable
2714                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2715                                 mwindow->session->drag_handle = 0;
2716                         }
2717                 }
2718
2719                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2720
2721 // Test in control
2722                 if( in_x != x && current->position > 0 &&
2723                         (FloatAuto::FREE == current->curve_mode ||
2724                          FloatAuto::TFREE == current->curve_mode))
2725 // act on in control handle only if
2726 // tangent is significant and is editable (not automatically choosen)
2727                 {
2728                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2729  // either cursor in ctrl-point handle or cursor on tangent line
2730                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2731                                 result = 1;
2732                                 if(buttonpress && (buttonpress != 3)) {
2733                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2734 //                                      lever = 1.0;
2735                                         mwindow->session->drag_handle = 1;
2736                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2737                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2738                                                   value_to_percentage(new_invalue, autogrouptype))
2739                                 }
2740                         }
2741                 }
2742
2743 // Test out control
2744                 if(out_x != x &&
2745                         (FloatAuto::FREE == current->curve_mode ||
2746                          FloatAuto::TFREE == current->curve_mode))
2747 // act on out control only if tangent is significant and is editable
2748                 {
2749                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2750                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2751                                 result = 1;
2752                                 if(buttonpress && (buttonpress != 3)) {
2753                                         if(lever == 0.0) lever=1.0;
2754 //                                      lever = 1.0;
2755                                         mwindow->session->drag_handle = 2;
2756                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2757                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2758                                                   value_to_percentage(new_outvalue, autogrouptype))
2759                                 }
2760                         }
2761                 }
2762         } // end ctrl_down()
2763
2764 #undef WITHIN
2765 #undef INIT_DRAG
2766
2767 // if(buttonpress)
2768 // 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",
2769 // mwindow->session->drag_handle,
2770 // ctrl_down(),
2771 // cursor_x,
2772 // cursor_y,
2773 // x1, x2, y1, y2);
2774         if(buttonpress && (buttonpress != 3) && result)
2775         {
2776                 mwindow->undo->update_undo_before();
2777         }
2778
2779         return result;
2780 }
2781
2782
2783 // Get the float value & y for position x on the canvas
2784 #define X_TO_FLOATLINE(x) \
2785         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2786         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2787 /* Call by reference fails for some reason here */ \
2788         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2789         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2790         double position = unit_start + x * zoom_units; \
2791         double value = 0; \
2792         if(position2 > position1) \
2793         { \
2794                 value = value1 + \
2795                         (value2 - value1) * \
2796                         (position - position1) / \
2797                         (position2 - position1); \
2798         } \
2799         else \
2800         { \
2801                 value = value1; \
2802         } \
2803         AUTOMATIONCLAMPS(value, autogrouptype); \
2804         int y = center_pixel + \
2805                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2806
2807
2808 void TrackCanvas::draw_floatline(int center_pixel,
2809         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2810         double unit_start, double zoom_units, double yscale,
2811         int x1, int y1, int x2, int y2,
2812         int color, int autogrouptype)
2813 {
2814 // Solve bezier equation for either every pixel or a certain large number of
2815 // points.
2816
2817 // Not using slope intercept
2818         x1 = MAX(0, x1);
2819         int prev_y = y1 + center_pixel;
2820
2821
2822 // Call by reference fails for some reason here
2823         FloatAuto *previous1 = previous, *next1 = next;
2824         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2825         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2826         float automation_range = automation_max - automation_min;
2827
2828         for(int x = x1; x < x2; x++)
2829         {
2830 // Interpolate value between frames
2831                 X_TO_FLOATLINE(x)
2832
2833                 if(/* x > x1 && */
2834                         y >= center_pixel - yscale / 2 &&
2835                         y < center_pixel + yscale / 2 - 1)
2836                 {
2837 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2838 // y,
2839 // (int)(center_pixel - yscale / 2),
2840 // (int)(center_pixel + yscale / 2 - 1));
2841
2842 //printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
2843                         draw_line(x - 1, prev_y  , x, y   );
2844                 }
2845                 prev_y = y;
2846         }
2847 }
2848
2849
2850
2851
2852
2853 int TrackCanvas::test_floatline(int center_pixel,
2854                 FloatAutos *autos,
2855                 double unit_start,
2856                 double zoom_units,
2857                 double yscale,
2858                 int x1,
2859                 int x2,
2860                 int cursor_x,
2861                 int cursor_y,
2862                 int buttonpress,
2863                 int autogrouptype)
2864 {
2865         int result = 0;
2866
2867
2868         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2869         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2870         float automation_range = automation_max - automation_min;
2871         FloatAuto *previous1 = 0, *next1 = 0;
2872         X_TO_FLOATLINE(cursor_x);
2873
2874         if(cursor_x >= x1 &&
2875                 cursor_x < x2 &&
2876                 cursor_y >= y - HANDLE_W / 2 &&
2877                 cursor_y < y + HANDLE_W / 2 &&
2878                 !ctrl_down())
2879         {
2880                 result = 1;
2881
2882 // Menu
2883                 if(buttonpress == 3)
2884                 {
2885                 }
2886                 else
2887 // Create keyframe
2888                 if(buttonpress)
2889                 {
2890                         Auto *current;
2891                         mwindow->undo->update_undo_before();
2892                         double position = autos->track->from_units(position1);
2893                         position = mwindow->edl->align_to_frame(position, 0);
2894                         int64_t new_position = autos->track->to_units(position,0);
2895                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2896                         ((FloatAuto*)current)->set_value(value);
2897                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2898                         mwindow->session->drag_start_position = current->position;
2899                         mwindow->session->drag_origin_x = cursor_x;
2900                         mwindow->session->drag_origin_y = cursor_y;
2901                         mwindow->session->drag_handle = 0;
2902                 }
2903         }
2904
2905
2906         return result;
2907 }
2908
2909
2910 void TrackCanvas::fill_ganged_autos(int all, float change, Track *skip, FloatAuto *fauto)
2911 {
2912         if( !skip->gang ) return;
2913 // Handles the special case of modifying a fadeauto
2914 // when there are ganged faders on several tracks
2915         double position = skip->from_units(fauto->position);
2916         int autoidx = fauto->autos->autoidx;
2917
2918         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2919                 if( (all || current->data_type == skip->data_type) &&
2920                     current->gang && current->record && current != skip ) {
2921                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2922                         float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2923                         float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2924                         int64_t current_position = current->to_units(position, 1);
2925                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
2926                         if( keyframe ) {
2927 // keyframe exists, just change it
2928                                 float value = keyframe->get_value();
2929                                 float new_value = value + change;
2930                                 CLAMP(new_value, auto_min, auto_max);
2931                                 keyframe->adjust_to_new_coordinates(current_position, new_value);
2932                         }
2933                         else {
2934 // create keyframe on neighbouring track at the point in time given by fauto
2935                                 FloatAuto *previous = 0, *next = 0;
2936                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2937                                 float new_value = value + change;
2938                                 CLAMP(new_value, auto_min, auto_max);
2939                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2940                                 keyframe->set_value(new_value);
2941                         }
2942                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2943                 }
2944         }
2945 }
2946
2947 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
2948 {
2949         double position = skip->from_units(fauto->position);
2950 // Move the gangs
2951         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2952                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2953                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2954                 float new_value = keyframe->get_value() + change;
2955                 CLAMP(new_value,
2956                       mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2957                       mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2958                 keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2959         }
2960 }
2961
2962 void TrackCanvas::clear_ganged_autos()
2963 {
2964 // remove the gangs
2965         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2966                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2967                 keyframe->autos->remove_nonsequential(keyframe);
2968         }
2969         mwindow->session->drag_auto_gang->remove_all();
2970 }
2971
2972
2973 void TrackCanvas::draw_toggleline(int center_pixel,
2974         int x1,
2975         int y1,
2976         int x2,
2977         int y2)
2978 {
2979         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2980
2981         if(y2 != y1)
2982         {
2983                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2984         }
2985 }
2986
2987 int TrackCanvas::test_toggleline(Autos *autos,
2988         int center_pixel,
2989         int x1,
2990         int y1,
2991         int x2,
2992         int y2,
2993         int cursor_x,
2994         int cursor_y,
2995         int buttonpress)
2996 {
2997         int result = 0;
2998         if(cursor_x >= x1 && cursor_x < x2)
2999         {
3000                 int miny = center_pixel + y1 - HANDLE_W / 2;
3001                 int maxy = center_pixel + y1 + HANDLE_W / 2;
3002                 if(cursor_y >= miny && cursor_y < maxy)
3003                 {
3004                         result = 1;
3005
3006 // Menu
3007                         if(buttonpress == 3)
3008                         {
3009                         }
3010                         else
3011 // Insert keyframe
3012                         if(buttonpress)
3013                         {
3014                                 Auto *current;
3015                                 double position = (double)(cursor_x +
3016                                                 mwindow->edl->local_session->view_start[pane->number]) *
3017                                         mwindow->edl->local_session->zoom_sample /
3018                                         mwindow->edl->session->sample_rate;
3019                                 int64_t unit_position = autos->track->to_units(position, 0);
3020                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
3021
3022                                 mwindow->undo->update_undo_before();
3023
3024                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
3025                                 ((IntAuto*)current)->value = new_value;
3026                                 // Toggle Autos don't respond to vertical zoom, they always show up
3027                                 // with "on" == 100% == line on top
3028                                 mwindow->session->drag_start_percentage = (float)new_value;
3029                                 mwindow->session->drag_start_position = current->position;
3030                                 mwindow->session->drag_origin_x = cursor_x;
3031                                 mwindow->session->drag_origin_y = cursor_y;
3032                         }
3033                 }
3034         };
3035
3036         return result;
3037 }
3038
3039 void TrackCanvas::calculate_viewport(Track *track,
3040         double &view_start,   // Seconds
3041         double &unit_start,
3042         double &view_end,     // Seconds
3043         double &unit_end,
3044         double &yscale,
3045         int &center_pixel,
3046         double &zoom_sample,
3047         double &zoom_units)
3048 {
3049
3050         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
3051                 mwindow->edl->local_session->zoom_sample /
3052                 mwindow->edl->session->sample_rate;
3053         unit_start = track->to_doubleunits(view_start);
3054         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
3055                 get_w()) *
3056                 mwindow->edl->local_session->zoom_sample /
3057                 mwindow->edl->session->sample_rate;
3058         unit_end = track->to_doubleunits(view_end);
3059
3060         int y = track->y_pixel
3061                         - mwindow->edl->local_session->track_start[pane->number];
3062         int has_titles = track->show_titles();
3063         int has_assets = track->show_assets();
3064         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
3065         double asset_h = resource_h();
3066         double title_h = mwindow->theme->title_h;
3067         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
3068         double dy = has_titles ?
3069                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2) :
3070                 ( has_assets ? asset_h/2 : 0) ;
3071         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
3072         yscale = ys;
3073         center_pixel = y + dy;
3074
3075         zoom_sample = mwindow->edl->local_session->zoom_sample;
3076         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
3077 }
3078
3079 float TrackCanvas::percentage_to_value(float percentage,
3080         int is_toggle,
3081         Auto *reference,
3082         int autogrouptype)
3083 {
3084         float result;
3085         if(is_toggle)
3086         {
3087                 if(percentage > 0.5)
3088                         result = 1;
3089                 else
3090                         result = 0;
3091         }
3092         else
3093         {
3094                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3095                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3096                 float automation_range = automation_max - automation_min;
3097
3098                 result = percentage * automation_range + automation_min;
3099                 if(reference)
3100                 {
3101                         FloatAuto *ptr = (FloatAuto*)reference;
3102                         result -= ptr->get_value();
3103                 }
3104 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
3105         }
3106         return result;
3107 }
3108
3109
3110 void TrackCanvas::calculate_auto_position(double *x, double *y,
3111         double *in_x, double *in_y, double *out_x, double *out_y,
3112         Auto *current, double unit_start, double zoom_units, double yscale,
3113         int autogrouptype)
3114 {
3115         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3116         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3117         float automation_range = automation_max - automation_min;
3118         FloatAuto *ptr = (FloatAuto*)current;
3119         *x = (double)(ptr->position - unit_start) / zoom_units;
3120         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
3121
3122         if(in_x) {
3123 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
3124                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
3125         }
3126
3127         if(in_y) {
3128                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
3129                                 automation_min) / automation_range - 0.5) * -yscale;
3130         }
3131
3132         if(out_x) {
3133 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
3134                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
3135         }
3136
3137         if(out_y) {
3138                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
3139                                  automation_min) / automation_range - 0.5) * -yscale;
3140         }
3141 }
3142
3143
3144 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
3145                 int draw, int buttonpress, int x_offset, int y_offset, int color,
3146                 Auto* &auto_instance, int autogrouptype)
3147 {
3148         int result = 0;
3149         int center_pixel, draw_auto;
3150         double view_start, unit_start;
3151         double view_end, unit_end, yscale;
3152         double zoom_sample, zoom_units;
3153         double in_x2, in_y2, out_x2, out_y2;
3154         double slope;
3155         //int skip = 0;
3156
3157         auto_instance = 0;
3158
3159         if(draw) set_color(color);
3160
3161         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3162                         yscale, center_pixel, zoom_sample, zoom_units);
3163
3164 // Get first auto before start
3165         Auto *current = 0, *previous = 0;
3166
3167         for( current = autos->last;
3168                 current && current->position >= unit_start;
3169                 current = PREVIOUS ) ;
3170
3171         Auto *first_auto = current ? current :
3172                  autos->first ? autos->first : autos->default_auto;
3173
3174         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
3175         if( first_auto ) {
3176                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3177                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
3178         }
3179         if( current )
3180                 current = NEXT;
3181         else {
3182                 current = autos->first;
3183                 ax = 0;
3184         }
3185
3186         do {
3187                 //skip = 0;
3188                 draw_auto = 1;
3189
3190                 if(current) {
3191                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
3192                                 current, unit_start, zoom_units, yscale, autogrouptype);
3193                 }
3194                 else {
3195                         ax2 = get_w();
3196                         ay2 = ay;
3197                         //skip = 1;
3198                 }
3199
3200                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3201
3202                 if(ax2 > get_w()) {
3203                         draw_auto = 0;
3204                         ax2 = get_w();
3205                         ay2 = ay + slope * (get_w() - ax);
3206                 }
3207
3208                 if(ax < 0) {
3209                         ay = ay + slope * (0 - ax);
3210                         ax = 0;
3211                 }
3212
3213 // Draw or test handle
3214                 if( current && !result && current != autos->default_auto ) {
3215                         if( !draw && track->record ) {
3216                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
3217                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
3218                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3219                                         buttonpress, autogrouptype);
3220                                 if( result )
3221                                         auto_instance = current;
3222                         }
3223                         if( draw && draw_auto ) {
3224                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
3225                                         (int)in_x2 + x_offset, (int)in_y2,
3226                                         (int)out_x2 + x_offset, (int)out_y2,
3227                                         (int)center_pixel + y_offset, (int)yscale, color);
3228                         }
3229                 }
3230
3231 // Draw or test joining line
3232                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
3233                         result = test_floatline(center_pixel,
3234                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3235 // Exclude auto coverage from the end of the line.  The auto overlaps
3236                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3237                                 buttonpress, autogrouptype);
3238                 }
3239                 if( draw )
3240                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3241                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3242                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3243                                 color, autogrouptype);
3244
3245                 if( current ) {
3246                         previous = current;
3247                         current = NEXT;
3248                 }
3249
3250                 ax = ax2;  ay = ay2;
3251         } while( current && current->position <= unit_end && !result );
3252
3253         if( ax < get_w() && !result ) {
3254                 ax2 = get_w();  ay2 = ay;
3255                 if(!draw && track->record /* && buttonpress != 3 */ ) {
3256                         result = test_floatline(center_pixel,
3257                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3258                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3259                                 buttonpress, autogrouptype);
3260                 }
3261                 if( draw )
3262                         draw_floatline(center_pixel,
3263                                 (FloatAuto*)previous, (FloatAuto*)current,
3264                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3265                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3266                                 color, autogrouptype);
3267         }
3268
3269         return result;
3270 }
3271
3272
3273 int TrackCanvas::do_int_autos(Track *track,
3274                 Autos *autos,
3275                 int cursor_x,
3276                 int cursor_y,
3277                 int draw,
3278                 int buttonpress,
3279                 int x_offset,
3280                 int y_offset,
3281                 int color,
3282                 Auto *&auto_instance)
3283 {
3284         int result = 0;
3285         double view_start;
3286         double unit_start;
3287         double view_end;
3288         double unit_end;
3289         double yscale;
3290         int center_pixel;
3291         double zoom_sample;
3292         double zoom_units;
3293         double ax, ay, ax2, ay2;
3294
3295         auto_instance = 0;
3296
3297         if(draw) set_color(color);
3298
3299         calculate_viewport(track,
3300                 view_start,
3301                 unit_start,
3302                 view_end,
3303                 unit_end,
3304                 yscale,
3305                 center_pixel,
3306                 zoom_sample,
3307                 zoom_units);
3308
3309
3310         double high = -yscale * 0.8 / 2;
3311         double low = yscale * 0.8 / 2;
3312
3313 // Get first auto before start
3314         Auto *current;
3315         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3316                 ;
3317
3318         if(current)
3319         {
3320                 ax = 0;
3321                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3322                 current = NEXT;
3323         }
3324         else
3325         {
3326                 current = autos->first ? autos->first : autos->default_auto;
3327                 if(current)
3328                 {
3329                         ax = 0;
3330                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3331                 }
3332                 else
3333                 {
3334                         ax = 0;
3335                         ay = yscale;
3336                 }
3337         }
3338
3339         do
3340         {
3341                 if(current)
3342                 {
3343                         ax2 = (double)(current->position - unit_start) / zoom_units;
3344                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3345                 }
3346                 else
3347                 {
3348                         ax2 = get_w();
3349                         ay2 = ay;
3350                 }
3351
3352                 if(ax2 > get_w()) ax2 = get_w();
3353
3354                 if(current && !result)
3355                 {
3356                         if(current != autos->default_auto)
3357                         {
3358                                 if(!draw)
3359                                 {
3360                                         if(track->record)
3361                                         {
3362                                                 result = test_auto(current,
3363                                                         (int)ax2,
3364                                                         (int)ay2,
3365                                                         (int)center_pixel,
3366                                                         (int)yscale,
3367                                                         cursor_x,
3368                                                         cursor_y,
3369                                                         buttonpress);
3370                                                 if (result)
3371                                                         auto_instance = current;
3372                                         }
3373                                 }
3374                                 else
3375                                         draw_auto(current,
3376                                                 (int)ax2 + x_offset,
3377                                                 (int)ay2 + y_offset,
3378                                                 (int)center_pixel,
3379                                                 (int)yscale);
3380                         }
3381
3382                         current = NEXT;
3383                 }
3384
3385                 if(!draw)
3386                 {
3387                         if(!result)
3388                         {
3389                                 if(track->record /* && buttonpress != 3 */)
3390                                 {
3391                                         result = test_toggleline(autos,
3392                                                 center_pixel,
3393                                                 (int)ax,
3394                                                 (int)ay,
3395                                                 (int)ax2,
3396                                                 (int)ay2,
3397                                                 cursor_x,
3398                                                 cursor_y,
3399                                                 buttonpress);
3400                                 }
3401                         }
3402                 }
3403                 else
3404                         draw_toggleline(center_pixel + y_offset,
3405                                 (int)ax,
3406                                 (int)ay,
3407                                 (int)ax2,
3408                                 (int)ay2);
3409
3410                 ax = ax2;
3411                 ay = ay2;
3412         }while(current && current->position <= unit_end && !result);
3413
3414         if(ax < get_w() && !result)
3415         {
3416                 ax2 = get_w();
3417                 ay2 = ay;
3418                 if(!draw)
3419                 {
3420                         if(track->record /* && buttonpress != 3 */)
3421                         {
3422                                 result = test_toggleline(autos,
3423                                         center_pixel,
3424                                         (int)ax,
3425                                         (int)ay,
3426                                         (int)ax2,
3427                                         (int)ay2,
3428                                         cursor_x,
3429                                         cursor_y,
3430                                         buttonpress);
3431                         }
3432                 }
3433                 else
3434                         draw_toggleline(center_pixel + y_offset,
3435                                 (int)ax,
3436                                 (int)ay,
3437                                 (int)ax2,
3438                                 (int)ay2);
3439         }
3440         return result;
3441 }
3442
3443 int TrackCanvas::do_autos(Track *track,
3444                 Autos *autos,
3445                 int cursor_x,
3446                 int cursor_y,
3447                 int draw,
3448                 int buttonpress,
3449                 BC_Pixmap *pixmap,
3450                 Auto * &auto_instance,
3451                 int &rerender)
3452 {
3453         int result = 0;
3454
3455         double view_start;
3456         double unit_start;
3457         double view_end;
3458         double unit_end;
3459         double yscale;
3460         int center_pixel;
3461         double zoom_sample;
3462         double zoom_units;
3463
3464         calculate_viewport(track,
3465                 view_start,
3466                 unit_start,
3467                 view_end,
3468                 unit_end,
3469                 yscale,
3470                 center_pixel,
3471                 zoom_sample,
3472                 zoom_units);
3473
3474         Auto *current;
3475         auto_instance = 0;
3476
3477         for(current = autos->first; current && !result; current = NEXT)
3478         {
3479                 if(current->position >= unit_start && current->position < unit_end)
3480                 {
3481                         int64_t x, y;
3482                         x = (int64_t)((double)(current->position - unit_start) /
3483                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3484                         y = center_pixel - pixmap->get_h() / 2;
3485
3486                         if(!draw)
3487                         {
3488                                 if(cursor_x >= x && cursor_y >= y &&
3489                                         cursor_x < x + pixmap->get_w() &&
3490                                         cursor_y < y + pixmap->get_h())
3491                                 {
3492                                         result = 1;
3493                                         auto_instance = current;
3494
3495                                         if(buttonpress && (buttonpress != 3))
3496                                         {
3497                                                 mwindow->session->drag_auto = current;
3498                                                 mwindow->session->drag_start_position = current->position;
3499                                                 mwindow->session->drag_origin_x = cursor_x;
3500                                                 mwindow->session->drag_origin_y = cursor_y;
3501
3502                                                 double position = autos->track->from_units(current->position);
3503                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3504                                                         mwindow->edl->local_session->get_selectionend(1)) /
3505                                                         2;
3506
3507                                                 if(!shift_down())
3508                                                 {
3509                                                         mwindow->edl->local_session->set_selectionstart(position);
3510                                                         mwindow->edl->local_session->set_selectionend(position);
3511                                                 }
3512                                                 else
3513                                                 if(position < center)
3514                                                 {
3515                                                         mwindow->edl->local_session->set_selectionstart(position);
3516                                                 }
3517                                                 else
3518                                                         mwindow->edl->local_session->set_selectionend(position);
3519
3520                                                 rerender = 1;
3521                                         }
3522                                 }
3523                         }
3524                         else
3525                                 draw_pixmap(pixmap, x, y);
3526                 }
3527         }
3528
3529
3530         return result;
3531 }
3532
3533 // so this means it is always >0 when keyframe is found
3534 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3535                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3536                 KeyFrame* &keyframe_instance)
3537 {
3538         int result = 0;
3539
3540         double view_start;
3541         double unit_start;
3542         double view_end;
3543         double unit_end;
3544         double yscale;
3545         int center_pixel;
3546         double zoom_sample;
3547         double zoom_units;
3548
3549         if(!track->expand_view) return 0;
3550
3551         calculate_viewport(track,
3552                 view_start,
3553                 unit_start,
3554                 view_end,
3555                 unit_end,
3556                 yscale,
3557                 center_pixel,
3558                 zoom_sample,
3559                 zoom_units);
3560
3561
3562
3563         for(int i = 0; i < track->plugin_set.total && !result; i++)
3564         {
3565                 PluginSet *plugin_set = track->plugin_set.values[i];
3566                 int center_pixel = track->y_pixel -
3567                         mwindow->edl->local_session->track_start[pane->number];
3568                 if( track->show_titles() )
3569                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3570                 if( track->show_assets() )
3571                         center_pixel += resource_h();
3572                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3573
3574                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3575                         plugin && !result;
3576                         plugin = (Plugin*)plugin->next)
3577                 {
3578                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3579                                 keyframe && !result;
3580                                 keyframe = (KeyFrame*)keyframe->next)
3581                         {
3582 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3583                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3584                                 {
3585                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3586                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3587
3588 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3589                                         if(!draw)
3590                                         {
3591                                                 if(cursor_x >= x && cursor_y >= y &&
3592                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3593                                                         cursor_y < y + keyframe_pixmap->get_h())
3594                                                 {
3595                                                         result = 1;
3596                                                         keyframe_plugin = plugin;
3597                                                         keyframe_instance = keyframe;
3598
3599                                                         if(buttonpress)
3600                                                         {
3601                                                                 mwindow->session->drag_auto = keyframe;
3602                                                                 mwindow->session->drag_start_position = keyframe->position;
3603                                                                 mwindow->session->drag_origin_x = cursor_x;
3604                                                                 mwindow->session->drag_origin_y = cursor_y;
3605
3606                                                                 double position = track->from_units(keyframe->position);
3607                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3608                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3609                                                                         2;
3610
3611                                                                 if(!shift_down())
3612                                                                 {
3613                                                                         mwindow->edl->local_session->set_selectionstart(position);
3614                                                                         mwindow->edl->local_session->set_selectionend(position);
3615                                                                 }
3616                                                                 else
3617                                                                 if(position < center)
3618                                                                 {
3619                                                                         mwindow->edl->local_session->set_selectionstart(position);
3620                                                                 }
3621                                                                 else
3622                                                                         mwindow->edl->local_session->set_selectionend(position);
3623                                                         }
3624                                                 }
3625                                         }
3626                                         else
3627                                                 draw_pixmap(keyframe_pixmap,
3628                                                         x,
3629                                                         y);
3630                                 }
3631                         }
3632                 }
3633         }
3634
3635
3636
3637 //      if(buttonpress && buttonpress != 3 && result)
3638 //      {
3639 //              mwindow->undo->update_undo_before();
3640 //      }
3641
3642         return result;
3643 }
3644
3645 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
3646 {
3647         Track *track = auto_keyframe->autos->track;
3648         int autogrouptype = auto_keyframe->autos->autogrouptype;
3649
3650         int center_pixel;
3651         double view_start, unit_start;
3652         double view_end, unit_end, yscale;
3653         double zoom_sample, zoom_units;
3654
3655         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3656                         yscale, center_pixel, zoom_sample, zoom_units);
3657         if( auto_keyframe->position < unit_start ||
3658             auto_keyframe->position >= unit_end )
3659                 return 0;
3660
3661         double ax = 0, ay = 0;
3662         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3663                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3664
3665         set_color(color);
3666         draw_line(ax, 0, ax, get_h());
3667
3668         char text[BCSTRLEN];
3669         if( show ) {
3670                 if( auto_keyframe->is_floatauto() ) {
3671                         FloatAuto *float_auto = (FloatAuto *)auto_keyframe;
3672                         sprintf(text, "%0.2f", float_auto->get_value());
3673                 }
3674                 else if( auto_keyframe->is_intauto() ) {
3675                         IntAuto *int_auto = (IntAuto *)auto_keyframe;
3676                         sprintf(text, "%d", int_auto->value);
3677                 }
3678                 else
3679                         show = 0;
3680         }
3681         if( show ) {
3682                 int font = MEDIUMFONT;
3683                 int tw = get_text_width(font, text)  + xS(TOOLTIP_MARGIN) * 2;
3684                 int th = get_text_height(font, text) + yS(TOOLTIP_MARGIN) * 2;
3685                 set_color(get_resources()->tooltip_bg_color);
3686                 ax += HANDLE_W/2;
3687                 ay += center_pixel + HANDLE_W/2;
3688                 draw_box(ax, ay, tw, th);
3689                 set_color(BLACK);
3690                 draw_rectangle(ax, ay, tw, th);
3691                 set_font(font);
3692                 ax += xS(TOOLTIP_MARGIN);
3693                 ay += yS(TOOLTIP_MARGIN) + get_text_ascent(font);
3694                 draw_text(ax, ay, text);
3695         }
3696         return 0;
3697 }
3698
3699 void TrackCanvas::draw_overlays()
3700 {
3701         int new_cursor, update_cursor, rerender;
3702
3703 // Move background pixmap to foreground pixmap
3704         draw_pixmap(background_pixmap, 0, 0, get_w(), get_h(), 0, 0);
3705
3706 // In/Out points
3707         draw_inout_points();
3708
3709 // Transitions
3710         draw_transitions();
3711
3712 // Plugins
3713         draw_plugins();
3714         draw_hard_edges();
3715
3716 // Loop points
3717         draw_loop_points();
3718         draw_brender_range();
3719
3720 // Highlighted areas
3721         draw_highlighting();
3722
3723 // Automation
3724         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3725
3726 // Selection cursor
3727         if(pane->cursor) pane->cursor->restore(1);
3728
3729 // Handle dragging
3730         draw_drag_handle();
3731
3732 // Playback cursor
3733         draw_playback_cursor();
3734
3735         draw_keyframe_reticle();
3736
3737         show_window(0);
3738 }
3739
3740 int TrackCanvas::activate()
3741 {
3742         if(!active)
3743         {
3744 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3745 //BC_Signals::dump_stack();
3746                 get_top_level()->deactivate();
3747                 active = 1;
3748                 set_active_subwindow(this);
3749                 pane->cursor->activate();
3750                 gui->focused_pane = pane->number;
3751         }
3752         return 0;
3753 }
3754
3755 int TrackCanvas::deactivate()
3756 {
3757         if(active)
3758         {
3759                 active = 0;
3760                 pane->cursor->deactivate();
3761         }
3762         return 0;
3763 }
3764
3765
3766 void TrackCanvas::update_drag_handle()
3767 {
3768         double new_position;
3769         int cursor_x = get_cursor_x();
3770
3771         new_position =
3772                 (double)(cursor_x +
3773                 mwindow->edl->local_session->view_start[pane->number]) *
3774                 mwindow->edl->local_session->zoom_sample /
3775                 mwindow->edl->session->sample_rate;
3776
3777         new_position =
3778                 mwindow->edl->align_to_frame(new_position, 0);
3779
3780         if( ctrl_down() && alt_down() ) {
3781 #define snapper(v) do { \
3782         double pos = (v); \
3783         if( pos < 0 ) break; \
3784         double dist = fabs(new_position - pos); \
3785         if( dist >= snap_min ) break; \
3786         snap_position = pos;  snap_min = dist; \
3787 } while(0)
3788                 double snap_position = new_position;
3789                 double snap_min = DBL_MAX;
3790                 if( mwindow->edl->local_session->inpoint_valid() )
3791                         snapper(mwindow->edl->local_session->get_inpoint());
3792                 if( mwindow->edl->local_session->outpoint_valid() )
3793                         snapper(mwindow->edl->local_session->get_outpoint());
3794                 snapper(mwindow->edl->prev_edit(new_position));
3795                 snapper(mwindow->edl->next_edit(new_position));
3796                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3797                 if( prev_label ) snapper(prev_label->position);
3798                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3799                 if( next_label ) snapper(next_label->position);
3800                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3801                         mwindow->edl->local_session->zoom_sample -
3802                         mwindow->edl->local_session->view_start[pane->number];
3803                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3804                         snapped = 1;
3805                         new_position = snap_position;
3806                 }
3807 #undef snapper
3808         }
3809
3810         if(new_position != mwindow->session->drag_position)
3811         {
3812                 mwindow->session->drag_position = new_position;
3813                 gui->mainclock->update(new_position);
3814                 timebar_position = new_position;
3815                 gui->update_timebar(0);
3816
3817                 EDL *edl = new EDL;
3818                 edl->create_objects();
3819                 edl->copy_all(mwindow->edl);
3820                 MainSession *session = mwindow->session;
3821                 int handle_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3822                 edl->modify_edithandles(session->drag_start,
3823                         session->drag_position, session->drag_handle, handle_mode,
3824                         edl->session->labels_follow_edits,
3825                         edl->session->plugins_follow_edits,
3826                         edl->session->autos_follow_edits,
3827                         !session->drag_edit ? 0 : session->drag_edit->group_id);
3828
3829                 double position = -1;
3830                 int show_edge = !session->drag_handle ? 1 : 2;
3831                 switch( handle_mode ) {
3832                 case MOVE_RIPPLE:
3833                 case MOVE_EDGE:
3834                         position = session->drag_handle ?
3835                                 session->drag_position : session->drag_start;
3836                         show_edge = 3 - show_edge;
3837                         break;
3838                 case MOVE_ROLL:
3839                 case MOVE_SLIDE:
3840                         position = session->drag_position;
3841                         break;
3842                 case MOVE_SLIP:
3843                         position = session->drag_start;
3844                         show_edge = 3 - show_edge;
3845                         break;
3846                 }
3847
3848                 if( position < 0 ) position = 0;
3849                 Track *track = session->drag_handle_track();
3850                 int64_t pos = track->to_units(position, 0);
3851                 render_handle_frame(edl, pos, shift_down() ? 0 : show_edge);
3852                 edl->remove_user();
3853         }
3854 }
3855
3856 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3857 {
3858         int result = 0;
3859         int64_t left = pos-1;
3860         if( left < 0 ) left = 0;
3861         switch( mode ) {
3862         case 0: {
3863                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3864                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3865                 TransportCommand command;
3866                 command.command = CURRENT_FRAME;
3867                 command.get_edl()->copy_all((EDL *)edl);
3868                 command.change_type = CHANGE_ALL;
3869                 command.realtime = 0;
3870                 Preferences *preferences = mwindow->preferences;
3871                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3872                 CICache *video_cache = new CICache(preferences);
3873                 render_engine->set_vcache(video_cache);
3874                 render_engine->arm_command(&command);
3875                 VRender *vrender = render_engine->vrender;
3876                 result = vrender &&
3877                         !vrender->process_buffer(&vlt, left, 0) &&
3878                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3879                 delete render_engine;
3880                 delete video_cache;
3881                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3882                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3883                 int w = canvas->w, h = canvas->h, w2 = w/2, h2 = h/2;
3884                 int lx = 0, ly = h2/2, rx = w2, ry = h2/2;
3885                 BC_WindowBase *window = canvas->get_canvas();
3886                 window->set_color(BLACK);
3887                 window->clear_box(0,0, window->get_w(),window->get_h());
3888                 window->draw_vframe(&vlt, lx,ly, w2,h2, 0,0,vlt.get_w(),vlt.get_h());
3889                 window->draw_vframe(&vrt, rx,ry, w2,h2, 0,0,vrt.get_w(),vrt.get_h());
3890                 window->flash(1);
3891                 mwindow->cwindow->gui->unlock_window();
3892                 break; }
3893         case 1:
3894         case 2: {
3895                 Track *track = mwindow->session->drag_handle_track();
3896                 double position = track->from_units(mode == 1 ? left : pos);
3897                 if( position < 0 ) position = 0;
3898                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3899                 if( playback_engine->is_playing_back )
3900                         playback_engine->stop_playback(1);
3901                 edl->local_session->set_selectionstart(position);
3902                 edl->local_session->set_selectionend(position);
3903                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3904                 break; }
3905         }
3906         return result;
3907 }
3908
3909 int TrackCanvas::update_drag_edit()
3910 {
3911         int result = 0;
3912
3913
3914
3915         return result;
3916 }
3917
3918 int TrackCanvas::get_drag_values(float *percentage,
3919         int64_t *position,
3920         int do_clamp,
3921         int cursor_x,
3922         int cursor_y,
3923         Auto *current)
3924 {
3925         //int x = cursor_x - mwindow->session->drag_origin_x;
3926         //int y = cursor_y - mwindow->session->drag_origin_y;
3927         *percentage = 0;
3928         *position = 0;
3929
3930         if(!current->autos->track->record) return 1;
3931         double view_start;
3932         double unit_start;
3933         double view_end;
3934         double unit_end;
3935         double yscale;
3936         int center_pixel;
3937         double zoom_sample;
3938         double zoom_units;
3939
3940         calculate_viewport(current->autos->track,
3941                 view_start,
3942                 unit_start,
3943                 view_end,
3944                 unit_end,
3945                 yscale,
3946                 center_pixel,
3947                 zoom_sample,
3948                 zoom_units);
3949
3950         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3951                 yscale +
3952                 mwindow->session->drag_start_percentage;
3953         if(do_clamp) CLAMP(*percentage, 0, 1);
3954
3955         *position = Units::to_int64(zoom_units *
3956                 (cursor_x - mwindow->session->drag_origin_x) +
3957                 mwindow->session->drag_start_position + 0.5);
3958
3959         if((do_clamp) && *position < 0) *position = 0;
3960         return 0;
3961 }
3962
3963
3964 #define UPDATE_DRAG_HEAD(do_clamp) \
3965         int result = 0, center_pixel; \
3966         if(!current->autos->track->record) return 0; \
3967         double view_start, unit_start, view_end, unit_end; \
3968         double yscale, zoom_sample, zoom_units; \
3969  \
3970         calculate_viewport(current->autos->track,  \
3971                 view_start, unit_start, view_end, unit_end, \
3972                 yscale, center_pixel, zoom_sample, zoom_units); \
3973  \
3974         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3975                 yscale +  mwindow->session->drag_start_percentage; \
3976         if(do_clamp) CLAMP(percentage, 0, 1); \
3977  \
3978         int64_t position = Units::to_int64(zoom_units * \
3979                 (cursor_x - mwindow->session->drag_origin_x) + \
3980                 mwindow->session->drag_start_position); \
3981         if((do_clamp) && position < 0) position = 0;
3982
3983
3984 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3985 {
3986         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
3987
3988         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
3989         int x = cursor_x - mwindow->session->drag_origin_x;
3990         int y = cursor_y - mwindow->session->drag_origin_y;
3991         float value, old_value;
3992
3993         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
3994 // not really editing the node, rather start editing the curve
3995 // tangent is editable and drag movement is significant
3996                 if( (FloatAuto::FREE == current->curve_mode ||
3997                      FloatAuto::TFREE==current->curve_mode) &&
3998                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
3999                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
4000         }
4001
4002         switch(mwindow->session->drag_handle) {
4003         case 0: // Center
4004 // Snap to nearby values
4005                 old_value = current->get_value();
4006                 if(shift_down()) {
4007                         double value1, value2, distance1=-1, distance2=-1;
4008
4009                         if(current->previous) {
4010                                 int autogrouptype = current->previous->autos->autogrouptype;
4011                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4012                                 value1 = ((FloatAuto*)current->previous)->get_value();
4013                                 distance1 = fabs(value - value1);
4014                                 current->set_value(value1);
4015                         }
4016
4017                         if(current->next) {
4018                                 int autogrouptype = current->next->autos->autogrouptype;
4019                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4020                                 value2 = ((FloatAuto*)current->next)->get_value();
4021                                 distance2 = fabs(value - value2);
4022                                 if(!current->previous || distance2 < distance1) {
4023                                         current->set_value(value2);
4024                                 }
4025                         }
4026
4027                         if(!current->previous && !current->next) {
4028                                 current->set_value( ((FloatAutos*)current->autos)->default_);
4029                         }
4030                         value = current->get_value();
4031                 }
4032                 else {
4033                         int autogrouptype = current->autos->autogrouptype;
4034                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
4035                 }
4036
4037                 if(alt_down() && !shift_down())
4038 // ALT constrains movement: fixed position, only changing the value
4039                         position = mwindow->session->drag_start_position;
4040
4041                 if(value != old_value || position != current->position) {
4042                         result = 1;
4043                         float change = value - old_value;
4044                         current->adjust_to_new_coordinates(position, value);
4045                         update_ganged_autos(change, current->autos->track, current);
4046                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4047                         show_message(current, color, ", %.2f", current->get_value());
4048                 }
4049                 break;
4050
4051 // In control
4052         case 1: {
4053                 int autogrouptype = current->autos->autogrouptype;
4054                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4055                 if(value != current->get_control_in_value())
4056                 {
4057                         result = 1;
4058                         // note: (position,value) need not be at the location of the ctrl point,
4059                         // but could be somewhere in between on the curve (or even outward or
4060                         // on the opposit side). We set the new control point such as
4061                         // to point the curve through (position,value)
4062                         current->set_control_in_value(
4063                                 value * levered_position(position - current->position,
4064                                                          current->get_control_in_position()));
4065                         update_ganged_autos(0, current->autos->track, current);
4066                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4067                         show_message(current, color, ", %.2f", current->get_control_in_value());
4068                 }
4069                 break; }
4070
4071 // Out control
4072         case 2: {
4073                 int autogrouptype = current->autos->autogrouptype;
4074                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4075                 if(value != current->get_control_out_value()) {
4076                         result = 1;
4077                         current->set_control_out_value(
4078                                 value * levered_position(position - current->position,
4079                                                          current->get_control_out_position()));
4080                         update_ganged_autos(0, current->autos->track, current);
4081                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4082                         show_message(current, color, ", %.2f", current->get_control_out_value());
4083                 }
4084                 break; }
4085         }
4086
4087         return result;
4088 }
4089
4090 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4091 {
4092         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4093
4094         UPDATE_DRAG_HEAD(1);
4095         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4096
4097         if(value != current->value || position != current->position)
4098         {
4099                 result = 1;
4100                 current->value = value;
4101                 current->position = position;
4102                 show_message(current, -1, ", %d", current->value);
4103         }
4104
4105         return result;
4106 }
4107
4108 // Autos which can't change value through dragging.
4109
4110 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4111 {
4112         Auto *current = (Auto*)mwindow->session->drag_auto;
4113
4114         UPDATE_DRAG_HEAD(1)
4115         if(position != current->position)
4116         {
4117                 result = 1;
4118                 current->position = position;
4119                 show_message(current, -1, "");
4120
4121                 double position_f = current->autos->track->from_units(current->position);
4122                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4123                         mwindow->edl->local_session->get_selectionend(1)) /
4124                         2;
4125                 if(!shift_down())
4126                 {
4127                         mwindow->edl->local_session->set_selectionstart(position_f);
4128                         mwindow->edl->local_session->set_selectionend(position_f);
4129                 }
4130                 else
4131                 if(position_f < center_f)
4132                 {
4133                         mwindow->edl->local_session->set_selectionstart(position_f);
4134                 }
4135                 else
4136                         mwindow->edl->local_session->set_selectionend(position_f);
4137         }
4138
4139
4140         return result;
4141 }
4142
4143 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4144 {
4145         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4146
4147         UPDATE_DRAG_HEAD(1)
4148         if(position != current->position)
4149         {
4150 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4151                 Track *track = current->autos->track;
4152                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4153                 PluginSet *pluginset;
4154                 Plugin *plugin = 0;
4155 // figure out the correct pluginset & correct plugin
4156                 int found = 0;
4157                 for(int i = 0; i < track->plugin_set.total; i++)
4158                 {
4159                         pluginset = track->plugin_set.values[i];
4160                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4161                         {
4162                                 KeyFrames *keyframes = plugin->keyframes;
4163                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4164                                         currentkeyframe;
4165                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4166                                 {
4167                                         if (currentkeyframe == current)
4168                                         {
4169                                                 found = 1;
4170                                                 break;
4171                                         }
4172
4173                                 }
4174                                 if (found) break;
4175                         }
4176                         if (found) break;
4177                 }
4178
4179                 mwindow->session->plugin_highlighted = plugin;
4180                 mwindow->session->track_highlighted = track;
4181                 result = 1;
4182                 current->position = position;
4183                 show_message(current, -1, "");
4184
4185                 double position_f = current->autos->track->from_units(current->position);
4186                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4187                         mwindow->edl->local_session->get_selectionend(1)) /
4188                         2;
4189                 if(!shift_down())
4190                 {
4191                         mwindow->edl->local_session->set_selectionstart(position_f);
4192                         mwindow->edl->local_session->set_selectionend(position_f);
4193                 }
4194                 else
4195                 if(position_f < center_f)
4196                 {
4197                         mwindow->edl->local_session->set_selectionstart(position_f);
4198                 }
4199                 else
4200                         mwindow->edl->local_session->set_selectionend(position_f);
4201         }
4202
4203
4204         return result;
4205 }
4206
4207 void TrackCanvas::update_drag_caption()
4208 {
4209         switch(mwindow->session->current_operation)
4210         {
4211                 case DRAG_FADE:
4212
4213                         break;
4214         }
4215 }
4216
4217
4218
4219 int TrackCanvas::cursor_update(int in_motion)
4220 {
4221         int result = 0;
4222         int cursor_x = 0;
4223         int cursor_y = 0;
4224         int update_clock = 0;
4225         int update_zoom = 0;
4226         int update_scroll = 0;
4227         int update_overlay = 0;
4228         int update_cursor = 0;
4229         int rerender = 0;
4230         double position = 0.;
4231 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4232
4233 // Default cursor
4234         int new_cursor =
4235                 arrow_mode() ? ARROW_CURSOR :
4236                 ibeam_mode() ? IBEAM_CURSOR : 0;
4237
4238         switch(mwindow->session->current_operation)
4239         {
4240                 case DRAG_EDITHANDLE1:
4241 // Outside threshold.  Upgrade status
4242                         if(active)
4243                         {
4244                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4245                                 {
4246                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
4247                                         update_overlay = 1;
4248                                 }
4249                         }
4250                         break;
4251
4252                 case DRAG_EDITHANDLE2:
4253                         if(active)
4254                         {
4255                                 update_drag_handle();
4256                                 update_overlay = 1;
4257                         }
4258                         break;
4259
4260                 case DRAG_PLUGINHANDLE1:
4261                         if(active)
4262                         {
4263                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4264                                 {
4265                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4266                                         update_overlay = 1;
4267                                 }
4268                         }
4269                         break;
4270
4271                 case DRAG_PLUGINHANDLE2:
4272                         if(active)
4273                         {
4274                                 update_drag_handle();
4275                                 update_overlay = 1;
4276                         }
4277                         break;
4278
4279 // Rubber band curves
4280                 case DRAG_FADE:
4281                 case DRAG_SPEED:
4282                 case DRAG_CZOOM:
4283                 case DRAG_PZOOM:
4284                 case DRAG_CAMERA_X:
4285                 case DRAG_CAMERA_Y:
4286                 case DRAG_CAMERA_Z:
4287                 case DRAG_PROJECTOR_X:
4288                 case DRAG_PROJECTOR_Y:
4289                 case DRAG_PROJECTOR_Z:
4290                         if(active) rerender = update_overlay =
4291                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4292                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4293                                 mwindow->speed_after(!in_motion ? 1 : 0);
4294                         break;
4295
4296                 case DRAG_PLAY:
4297                         if(active) rerender = update_overlay =
4298                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4299                         break;
4300
4301                 case DRAG_MUTE:
4302                         if(active) rerender = update_overlay =
4303                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4304                         break;
4305
4306 // Keyframe icons are sticky
4307                 case DRAG_PAN_PRE:
4308                 case DRAG_MASK_PRE:
4309                 case DRAG_MODE_PRE:
4310                 case DRAG_PLUGINKEY_PRE:
4311                         if(active) {
4312                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4313                                         mwindow->session->current_operation++;
4314                                         update_overlay = 1;
4315
4316                                         mwindow->undo->update_undo_before();
4317                                 }
4318                         }
4319                         break;
4320
4321                 case DRAG_PAN:
4322                 case DRAG_MASK:
4323                 case DRAG_MODE:
4324                         if(active) rerender = update_overlay =
4325                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4326                         break;
4327
4328                 case DRAG_PLUGINKEY:
4329                         if(active) rerender = update_overlay =
4330                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4331                         break;
4332
4333                 case SELECT_REGION:
4334                         if(active) {
4335                                 cursor_x = get_cursor_x();
4336                                 cursor_y = get_cursor_y();
4337                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4338                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4339
4340                                 position = mwindow->edl->align_to_frame(position, 0);
4341                                 position = MAX(position, 0);
4342
4343                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4344                                 double end = mwindow->edl->local_session->get_selectionend(1);
4345                                 if(position < selection_midpoint) {
4346                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4347                                         mwindow->edl->local_session->set_selectionstart(position);
4348                                 }
4349                                 else {
4350                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4351                                         mwindow->edl->local_session->set_selectionend(position);
4352                                 }
4353         // Que the CWindow
4354                                 gui->unlock_window();
4355                                 int dir =
4356                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4357                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4358                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4359                                 gui->lock_window("TrackCanvas::cursor_update 1");
4360         // Update the faders
4361                                 mwindow->update_plugin_guis();
4362                                 gui->update_patchbay();
4363
4364                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4365
4366                                 gui->hide_cursor(0);
4367                                 gui->draw_cursor(1);
4368                                 gui->update_timebar(0);
4369                                 gui->flash_canvas(1);
4370                                 result = 1;
4371                                 update_clock = 1;
4372                                 update_zoom = 1;
4373                                 update_scroll = 1;
4374                         }
4375                         break;
4376
4377                 case DROP_TARGETING:
4378                         new_cursor = GRABBED_CURSOR;
4379                         result = 1;
4380                         break;
4381
4382                 default:
4383                         if(is_event_win() && cursor_inside()) {
4384 // Update clocks
4385                                 cursor_x = get_cursor_x();
4386                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4387                                 position = mwindow->edl->align_to_frame(position, 0);
4388                                 update_clock = 1;
4389 // set all timebars
4390                                 for(int i = 0; i < TOTAL_PANES; i++)
4391                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4392
4393 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4394                                 gui->update_timebar(0);
4395 // Update cursor
4396                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4397                                                 0, new_cursor, update_cursor)) break;
4398                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4399                                         0, 0, new_cursor, update_cursor, rerender)) break;
4400                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4401                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4402 // Plugin boundaries
4403                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4404                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4405                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4406                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4407                         }
4408                         break;
4409         }
4410
4411 //printf("TrackCanvas::cursor_update 1\n");
4412         if(update_cursor && new_cursor != get_cursor())
4413         {
4414                 set_cursor(new_cursor, 0, 1);
4415         }
4416
4417 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4418         if(rerender && render_timer->get_difference() > 0.25 ) {
4419                 render_timer->update();
4420                 mwindow->restart_brender();
4421                 mwindow->sync_parameters(CHANGE_PARAMS);
4422                 mwindow->update_plugin_guis();
4423                 gui->unlock_window();
4424                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4425                 gui->lock_window("TrackCanvas::cursor_update 2");
4426         }
4427         if(rerender) {
4428 // Update faders
4429                 gui->update_patchbay();
4430         }
4431
4432
4433         if(update_clock) {
4434                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4435                         gui->mainclock->update(position);
4436         }
4437
4438         if(update_zoom) {
4439                 gui->zoombar->update();
4440         }
4441
4442         if(update_scroll) {
4443                 if(!drag_scroll &&
4444                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4445                         start_dragscroll();
4446                 else
4447                 if(drag_scroll &&
4448                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4449                         stop_dragscroll();
4450         }
4451
4452         if(update_overlay) {
4453                 gui->draw_overlays(1);
4454         }
4455
4456 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4457         return result;
4458 }
4459
4460 int TrackCanvas::cursor_motion_event()
4461 {
4462         return cursor_update(1);
4463 }
4464
4465 void TrackCanvas::start_dragscroll()
4466 {
4467         if(!drag_scroll) {
4468                 drag_scroll = 1;
4469                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4470 //printf("TrackCanvas::start_dragscroll 1\n");
4471         }
4472 }
4473
4474 void TrackCanvas::stop_dragscroll()
4475 {
4476         if(drag_scroll) {
4477                 drag_scroll = 0;
4478                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4479 //printf("TrackCanvas::stop_dragscroll 1\n");
4480         }
4481 }
4482
4483 int TrackCanvas::repeat_event(int64_t duration)
4484 {
4485         if(!drag_scroll) return 0;
4486         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4487
4488         int sample_movement = 0;
4489         int track_movement = 0;
4490         int64_t x_distance = 0;
4491         int64_t y_distance = 0;
4492         double position = 0;
4493         int result = 0;
4494
4495         switch(mwindow->session->current_operation) {
4496                 case SELECT_REGION:
4497 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4498                 if(get_cursor_x() > get_w()) {
4499                                 x_distance = get_cursor_x() - get_w();
4500                                 sample_movement = 1;
4501                 }
4502                 else if(get_cursor_x() < 0) {
4503                         x_distance = get_cursor_x();
4504                         sample_movement = 1;
4505                 }
4506
4507                 if(get_cursor_y() > get_h()) {
4508                         y_distance = get_cursor_y() - get_h();
4509                         track_movement = 1;
4510                 }
4511                 else if(get_cursor_y() < 0) {
4512                         y_distance = get_cursor_y();
4513                         track_movement = 1;
4514                 }
4515                 result = 1;
4516                 break;
4517         }
4518
4519         if(sample_movement) {
4520                 position = (double)(get_cursor_x() +
4521                         mwindow->edl->local_session->view_start[pane->number] +
4522                         x_distance) *
4523                         mwindow->edl->local_session->zoom_sample /
4524                         mwindow->edl->session->sample_rate;
4525                 position = mwindow->edl->align_to_frame(position, 0);
4526                 position = MAX(position, 0);
4527
4528 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4529                 switch(mwindow->session->current_operation) {
4530                 case SELECT_REGION:
4531                         if(position < selection_midpoint) {
4532                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4533                                 mwindow->edl->local_session->set_selectionstart(position);
4534 // Que the CWindow
4535                                 gui->unlock_window();
4536                                 mwindow->cwindow->update(1, 0, 0);
4537                                 gui->lock_window("TrackCanvas::repeat_event");
4538 // Update the faders
4539                                 mwindow->update_plugin_guis();
4540                                 gui->update_patchbay();
4541                         }
4542                         else {
4543                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4544                                 mwindow->edl->local_session->set_selectionend(position);
4545 // Don't que the CWindow
4546                         }
4547                         break;
4548                 }
4549
4550                 mwindow->samplemovement(
4551                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4552                         pane->number);
4553         }
4554
4555         if(track_movement) {
4556                 mwindow->trackmovement(y_distance, pane->number);
4557         }
4558
4559         return result;
4560 }
4561
4562 int TrackCanvas::button_release_event()
4563 {
4564         int redraw = -1, update_overlay = 0;
4565         int result = 0, load_flags = 0;
4566
4567 // printf("TrackCanvas::button_release_event %d\n",
4568 // mwindow->session->current_operation);
4569         if(active) {
4570                 switch(mwindow->session->current_operation) {
4571                 case DRAG_EDITHANDLE2:
4572                         mwindow->session->current_operation = NO_OPERATION;
4573                         drag_scroll = 0;
4574                         result = 1;
4575
4576                         end_edithandle_selection();
4577                         break;
4578
4579                 case DRAG_EDITHANDLE1:
4580                         mwindow->session->current_operation = NO_OPERATION;
4581                         drag_scroll = 0;
4582                         result = 1;
4583                         break;
4584
4585                 case DRAG_PLUGINHANDLE2:
4586                         mwindow->session->current_operation = NO_OPERATION;
4587                         drag_scroll = 0;
4588                         result = 1;
4589
4590                         end_pluginhandle_selection();
4591                         break;
4592
4593                 case DRAG_PLUGINHANDLE1:
4594                         mwindow->session->current_operation = NO_OPERATION;
4595                         drag_scroll = 0;
4596                         result = 1;
4597                         break;
4598
4599                 case DRAG_SPEED:
4600                         redraw = FORCE_REDRAW;
4601                         load_flags |= LOAD_EDITS;
4602                 case DRAG_FADE:
4603 // delete the drag_auto_gang first and remove out of order keys
4604                         clear_ganged_autos();
4605                 case DRAG_CZOOM:
4606                 case DRAG_PZOOM:
4607                 case DRAG_PLAY:
4608                 case DRAG_MUTE:
4609                 case DRAG_MASK:
4610                 case DRAG_MODE:
4611                 case DRAG_PAN:
4612                 case DRAG_CAMERA_X:
4613                 case DRAG_CAMERA_Y:
4614                 case DRAG_CAMERA_Z:
4615                 case DRAG_PROJECTOR_X:
4616                 case DRAG_PROJECTOR_Y:
4617                 case DRAG_PROJECTOR_Z:
4618                 case DRAG_PLUGINKEY:
4619                         load_flags |= LOAD_AUTOMATION;
4620                         mwindow->session->current_operation = NO_OPERATION;
4621                         mwindow->session->drag_handle = 0;
4622 // Remove any out-of-order keyframe
4623                         if(mwindow->session->drag_auto) {
4624                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4625                                                 mwindow->session->drag_auto);
4626 //                              mwindow->session->drag_auto->autos->optimize();
4627                                 update_overlay = 1;
4628                         }
4629
4630                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4631                         result = 1;
4632                         break;
4633
4634                 case DRAG_EDIT:
4635                 case DRAG_GROUP:
4636                 case DRAG_AEFFECT_COPY:
4637                 case DRAG_VEFFECT_COPY:
4638 // Trap in drag stop
4639                         break;
4640
4641                 case DROP_TARGETING: {
4642                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4643                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4644                         drag_cursor_motion(cursor_x, cursor_y,
4645                                 &track, &edit, &pluginset, &plugin);
4646                         double position =
4647                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4648                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4649                         mwindow->session->current_operation = NO_OPERATION;
4650                         result = 1;
4651                         break; }
4652
4653                 case GROUP_TOGGLE: {
4654                         Edit *edit = mwindow->session->drag_edit;
4655                         if( edit ) {
4656                                 if( shift_down() && edit->is_selected ) {
4657                                         if( edit->group_id > 0 ) {
4658                                                 mwindow->edl->tracks->clear_selected_edits();
4659                                                 mwindow->edl->tracks->del_group(edit->group_id);
4660                                         }
4661                                         else {
4662                                                 int id = mwindow->session->group_number++;
4663                                                 mwindow->edl->tracks->new_group(id);
4664                                         }
4665                                         redraw = 0;
4666                                 }
4667                                 else {
4668                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4669                                                 mwindow->edl->tracks->clear_selected_edits();
4670                                         edit->set_selected(-1);
4671                                 }
4672                         }
4673                         mwindow->session->current_operation = NO_OPERATION;
4674                         update_overlay = 1;
4675                         result = 1;
4676                         drag_scroll = 0;
4677                         break; }
4678
4679                 default:
4680                         if( mwindow->session->current_operation ) {
4681 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4682 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4683 //                              }
4684
4685                                 mwindow->session->current_operation = NO_OPERATION;
4686                                 drag_scroll = 0;
4687                                 //result = 0;
4688                                 break;
4689                         }
4690                         break;
4691                 }
4692         }
4693
4694         if( mwindow->edl->local_session->zoombar_showautocolor >= 0 )
4695                 mwindow->gui->zoombar->update_autozoom(-1);
4696
4697         if (result)
4698                 cursor_update(0);
4699
4700         if(update_overlay) {
4701                 gui->draw_overlays(1);
4702         }
4703         if(redraw >= 0) {
4704                 gui->draw_canvas(redraw, 0);
4705                 gui->flash_canvas(1);
4706         }
4707         return result;
4708 }
4709
4710 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4711         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4712 {
4713         Edit *edit_result = 0;
4714         int handle_result = -1;
4715         int result = 0;
4716
4717         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4718                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4719                         int64_t edit_x, edit_y, edit_w, edit_h;
4720                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4721
4722                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4723                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4724                                 if( cursor_x < edit_x + HANDLE_W ) {
4725                                         edit_result = edit;
4726                                         handle_result = 0;
4727                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4728                                             track->show_assets() ) {
4729                                                 new_cursor = DOWNLEFT_RESIZE;
4730                                                 if( button_press == LEFT_BUTTON )
4731                                                         result = -1;
4732                                         }
4733                                         else
4734                                                 result = 1;
4735                                 }
4736                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4737                                         edit_result = edit;
4738                                         handle_result = 1;
4739                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4740                                             track->show_assets() ) {
4741                                                 new_cursor = DOWNRIGHT_RESIZE;
4742                                                 if( button_press == LEFT_BUTTON )
4743                                                         result = -1;
4744                                         }
4745                                         else
4746                                                 result = 1;
4747                                 }
4748                         }
4749                 }
4750         }
4751
4752         if( result > 0 ) {
4753                 int group_id = edit_result->group_id;
4754                 if( group_id > 0 ) {
4755                         Track *track = edit_result->track;
4756                         Edit *left = 0, *right = 0;
4757                         double start = DBL_MAX, end = DBL_MIN;
4758                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4759                                 if( edit->group_id != group_id ) continue;
4760                                 double edit_start = edit->track->from_units(edit->startproject);
4761                                 if( edit_start < start ) { start = edit_start;  left = edit; }
4762                                 double edit_end = edit->track->from_units(edit->startproject+edit->length);
4763                                 if( edit_end > end ) { end = edit_end;  right = edit; }
4764                         }
4765                         Edit *edit = !handle_result ? left : right;
4766                         if( edit != edit_result )
4767                                 result = 0;
4768                 }
4769         }
4770
4771         update_cursor = 1;
4772         if( result > 0 ) {
4773                 double position = 0;
4774                 if( handle_result == 0 ) {
4775                         position = edit_result->track->from_units(edit_result->startproject);
4776                         new_cursor = LEFT_CURSOR;
4777                 }
4778                 else if( handle_result == 1 ) {
4779                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4780                         new_cursor = RIGHT_CURSOR;
4781                 }
4782
4783 // Reposition cursor
4784                 if( button_press ) {
4785                         mwindow->session->drag_edit = edit_result;
4786                         mwindow->session->drag_handle = handle_result;
4787                         mwindow->session->drag_button = get_buttonpress() - 1;
4788                         mwindow->session->drag_position = position;
4789                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4790                         mwindow->session->drag_origin_x = get_cursor_x();
4791                         mwindow->session->drag_origin_y = get_cursor_y();
4792                         mwindow->session->drag_start = position;
4793
4794                         rerender = start_selection(position);
4795                         update_overlay = 1;
4796                 }
4797         }
4798         else if( result < 0 && !edit_result->silence() ) {
4799                 mwindow->undo->update_undo_before();
4800                 if( !shift_down() ) {
4801                         if( handle_result == 0 )
4802                                 edit_result->hard_left = !edit_result->hard_left;
4803                         else if( handle_result == 1 )
4804                                 edit_result->hard_right = !edit_result->hard_right;
4805                 }
4806                 else {
4807                         int status = handle_result == 0 ? edit_result->hard_left :
4808                                      handle_result == 1 ? edit_result->hard_right : 0;
4809                         int new_status = !status;
4810                         int64_t edit_edge = edit_result->startproject;
4811                         if( handle_result == 1 ) edit_edge += edit_result->length;
4812                         double edge_position = edit_result->track->from_units(edit_edge);
4813                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4814                                 int64_t track_position = track->to_units(edge_position, 1);
4815                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4816                                 if( left_edit ) {
4817                                         int64_t left_edge = left_edit->startproject;
4818                                         double left_position = track->from_units(left_edge);
4819                                         if( EQUIV(edge_position, left_position) ) {
4820                                                 left_edit->hard_left = new_status;
4821                                                 if( left_edit->previous )
4822                                                         left_edit->previous->hard_right = new_status;
4823                                         }
4824                                 }
4825                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4826                                 if( right_edit ) {
4827                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4828                                         double right_position = track->from_units(right_edge);
4829                                         if( EQUIV(edge_position, right_position) ) {
4830                                                 right_edit->hard_right = new_status;
4831                                                 if( right_edit->next )
4832                                                         right_edit->next->hard_left = new_status;
4833                                         }
4834                                 }
4835                         }
4836                 }
4837                 rerender = update_overlay = 1;
4838                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4839                 result = 1;
4840         }
4841
4842         return result;
4843 }
4844
4845 int TrackCanvas::do_plugin_handles(int cursor_x,
4846         int cursor_y,
4847         int button_press,
4848         int &rerender,
4849         int &update_overlay,
4850         int &new_cursor,
4851         int &update_cursor)
4852 {
4853         Plugin *plugin_result = 0;
4854         int handle_result = 0;
4855         int result = 0;
4856
4857         for(Track *track = mwindow->edl->tracks->first;
4858                 track && !result;
4859                 track = track->next) {
4860                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4861                         PluginSet *plugin_set = track->plugin_set.values[i];
4862                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4863                                 plugin && !result;
4864                                 plugin = (Plugin*)plugin->next) {
4865                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4866                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4867
4868                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4869                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4870                                         if(cursor_x < plugin_x + HANDLE_W) {
4871                                                 plugin_result = plugin;
4872                                                 handle_result = 0;
4873                                                 result = 1;
4874                                         }
4875                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4876                                                 plugin_result = plugin;
4877                                                 handle_result = 1;
4878                                                 result = 1;
4879                                         }
4880                                 }
4881                         }
4882
4883                         if(result && shift_down())
4884                                 mwindow->session->trim_edits = plugin_set;
4885                 }
4886         }
4887
4888         update_cursor = 1;
4889         if(result) {
4890                 double position = 0;
4891                 if(handle_result == 0) {
4892                         position = plugin_result->track->from_units(plugin_result->startproject);
4893                         new_cursor = LEFT_CURSOR;
4894                 }
4895                 else if(handle_result == 1) {
4896                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4897                         new_cursor = RIGHT_CURSOR;
4898                 }
4899
4900                 if(button_press) {
4901                         mwindow->session->drag_plugin = plugin_result;
4902                         mwindow->session->drag_handle = handle_result;
4903                         mwindow->session->drag_button = get_buttonpress() - 1;
4904                         mwindow->session->drag_position = position;
4905                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4906                         mwindow->session->drag_origin_x = get_cursor_x();
4907                         mwindow->session->drag_origin_y = get_cursor_y();
4908                         mwindow->session->drag_start = position;
4909
4910                         rerender = start_selection(position);
4911                         update_overlay = 1;
4912                 }
4913         }
4914
4915         return result;
4916 }
4917
4918
4919 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4920 {
4921         int result = 0;
4922
4923         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4924         drag_cursor_motion(cursor_x, cursor_y,
4925                 &track, &edit, &pluginset, &plugin);
4926
4927         if( button_press && track ) {
4928                 switch( get_buttonpress() ) {
4929                 case RIGHT_BUTTON: {
4930                         double position =
4931                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4932                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
4933                         mwindow->session->current_operation = NO_OPERATION;
4934                         result = 1;
4935                         break; }
4936                 case MIDDLE_BUTTON:
4937                         set_cursor(GRABBED_CURSOR, 0, 1);
4938                         mwindow->session->current_operation = DROP_TARGETING;
4939                         result = 1;
4940                         break;
4941                 }
4942         }
4943
4944         return result;
4945 }
4946
4947 int TrackCanvas::arrow_mode()
4948 {
4949         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
4950 }
4951 int TrackCanvas::ibeam_mode()
4952 {
4953         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
4954 }
4955
4956 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4957         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4958 {
4959         int result = 0;
4960
4961         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4962                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4963                         int64_t edit_x, edit_y, edit_w, edit_h;
4964                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4965
4966 // Cursor inside a track
4967 // Cursor inside an edit
4968                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4969                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4970                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
4971                                         if( get_double_click() ) {
4972                                                 mwindow->edl->tracks->clear_selected_edits();
4973                                                 mwindow->edl->tracks->select_affected_edits(
4974                                                         edit->track->from_units(edit->startproject),
4975                                                         edit->track, 1);
4976                                                 double start = edit->track->from_units(edit->startproject);
4977                                                 start = mwindow->edl->align_to_frame(start, 0);
4978                                                 mwindow->edl->local_session->set_selectionstart(start);
4979                                                 double end = edit->track->from_units(edit->startproject+edit->length);
4980                                                 end = mwindow->edl->align_to_frame(end, 0);
4981                                                 mwindow->edl->local_session->set_selectionend(end);
4982                                                 result = 1; // Select edit duration or select_region
4983                                         }
4984                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
4985                                                 mwindow->session->drag_edit = edit;
4986                                                 mwindow->session->current_operation = GROUP_TOGGLE;
4987                                                 result = 1;
4988                                         }
4989                                         if( result ) {
4990                                                 rerender = 1;
4991                                                 update_cursor = -1;
4992                                         }
4993                                 }
4994                                 else if( drag_start && track->record ) {
4995                                         mwindow->session->drag_edit = edit;
4996                                         mwindow->session->drag_origin_x = cursor_x;
4997                                         mwindow->session->drag_origin_y = cursor_y;
4998 // Where the drag started, so we know relative position inside the edit later
4999                                         mwindow->session->drag_position =
5000                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
5001                                         drag_start = 0; // if unselected "fast" drag
5002                                         if( !edit->silence() && !edit->is_selected ) {
5003                                                 mwindow->edl->tracks->clear_selected_edits();
5004                                                 if( ibeam_mode() ) {
5005                                                         double start = edit->track->from_units(edit->startproject);
5006                                                         mwindow->edl->local_session->set_selectionstart(start);
5007                                                         mwindow->edl->local_session->set_selectionend(start);
5008                                                         edit->set_selected(1);
5009                                                 }
5010                                                 else
5011                                                         mwindow->edl->tracks->select_affected_edits(
5012                                                                 edit->track->from_units(edit->startproject),
5013                                                                 edit->track, 1);
5014                                                 drag_start = 1;
5015                                         }
5016 // Construct list of all affected edits
5017                                         if( drag_start || ibeam_mode() ) {
5018                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
5019                                                 if( mwindow->session->drag_edits->size() > 0 ) {
5020                                                         mwindow->session->current_operation = DRAG_EDIT;
5021 // Need to create drag window
5022                                                         int cx, cy;  get_abs_cursor(cx, cy);
5023                                                         gui->drag_popup = new BC_DragWindow(gui,
5024                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
5025                                                         result = 1;
5026                                                 }
5027                                                 else {
5028                                                         rerender = start_selection(mwindow->session->drag_position);
5029                                                         mwindow->session->current_operation = SELECT_REGION;
5030                                                         update_cursor = 1;
5031                                                 }
5032                                         }
5033                                         else if( edit->is_selected && arrow_mode() ) {
5034                                                 if( mwindow->session->drag_group )
5035                                                         mwindow->session->drag_group->remove_user();
5036                                                 double start_position = 0;
5037                                                 mwindow->session->drag_group =
5038                                                         mwindow->edl->selected_edits_to_clip(0, &start_position,
5039                                                                 &mwindow->session->drag_group_first_track);
5040                                                 if( mwindow->session->drag_group ) {
5041                                                         mwindow->session->current_operation = DRAG_GROUP;
5042                                                         mwindow->session->drag_group_position = start_position;
5043                                                         mwindow->session->drag_group_edit = edit;
5044                                                         mwindow->session->drag_origin_y = edit_y;
5045                                                         result = 1;
5046                                                 }
5047                                         }
5048                                 }
5049                         }
5050                 }
5051         }
5052         return result;
5053 }
5054
5055 // returns -1=doesnt fit, 1=fits, 0=fits but overwrites
5056 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
5057 {
5058         int intersects = 0;
5059         Track *src = group->tracks->first;
5060         for( Track *track=first_track; track && src; track=track->next ) {
5061                 if( !track->record ) return -1;
5062                 if( src->data_type != track->data_type ) return -1;
5063                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
5064                         if( src_edit->silence() ) continue;
5065                         if( !intersects && edit_intersects(track, src_edit, pos) )
5066                                 intersects = 1;
5067                 }
5068                 src = src->next;
5069         }
5070         return src ? -1 : !intersects ? 1 : 0;
5071 }
5072
5073 int TrackCanvas::edit_intersects(Track *track, Edit *src_edit, double &pos)
5074 {
5075         if( pos < 0 ) { pos = 0;  return 1; }
5076         int pane_no = pane->number;
5077         int cur_pix = track->edl->get_position_cursorx(pos, pane_no);
5078         int64_t src_start = src_edit->startproject;
5079         int64_t src_end = src_start + src_edit->length;
5080         double new_start = src_edit->track->from_units(src_start) + pos;
5081         double new_end = src_edit->track->from_units(src_end) + pos;
5082         int64_t trk_start = track->to_units(new_start, 1);
5083         int64_t trk_end = track->to_units(new_end, 1);
5084         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
5085                 if( edit->is_selected || edit->silence() ) continue;
5086                 int64_t edit_start = edit->startproject;
5087                 if( edit_start >= trk_end ) continue;
5088                 int64_t edit_end = edit_start + edit->length;
5089                 if( trk_start >= edit_end ) continue;
5090
5091                 int64_t lt_dist = labs(trk_end - edit_start);
5092                 int64_t rt_dist = labs(edit_end - trk_start);
5093                 int64_t position;
5094                 if( lt_dist < rt_dist ) {
5095                         position = edit_start;
5096                         lt_dist = abs(trk_start - edit_start);
5097                         rt_dist = abs(trk_end - edit_start);
5098                         if( lt_dist > rt_dist )
5099                                 position -= src_end;
5100                 }
5101                 else {
5102                         position = edit_end;
5103                         lt_dist = abs(trk_start - edit_end);
5104                         rt_dist = abs(trk_end - edit_end);
5105                         if( lt_dist > rt_dist )
5106                                 position -= src_end;
5107                 }
5108                 double new_pos = edit->track->from_units(position);
5109                 int new_pix = track->edl->get_position_cursorx(new_pos, pane_no);
5110                 if( abs(new_pix-cur_pix) < HANDLE_W )
5111                         pos = new_pos;
5112                 return 1;
5113         }
5114         return 0;
5115 }
5116
5117 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5118 {
5119         return 0;
5120 }
5121
5122 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5123         int button_press, int &redraw, int &rerender)
5124 {
5125         Plugin *plugin = 0;
5126         int result = 0;
5127         int done = 0;
5128         int64_t x, y, w, h;
5129         Track *track = 0;
5130
5131         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5132                 if(!track->expand_view) continue;
5133
5134                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5135                         // first check if plugins are visible at all
5136                         if (!track->expand_view)
5137                                 continue;
5138                         PluginSet *plugin_set = track->plugin_set.values[i];
5139                         for(plugin = (Plugin*)plugin_set->first;
5140                                 plugin && !done;
5141                                 plugin = (Plugin*)plugin->next) {
5142                                 plugin_dimensions(plugin, x, y, w, h);
5143                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5144                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5145                                         if(cursor_x >= x && cursor_x < x + w &&
5146                                                 cursor_y >= y && cursor_y < y + h) {
5147                                                 done = 1;
5148                                                 break;
5149                                         }
5150                                 }
5151                         }
5152                 }
5153         }
5154
5155         if(plugin) {
5156 // Start plugin popup
5157                 if(button_press) {
5158                         if(get_buttonpress() == RIGHT_BUTTON ) {
5159                                 gui->plugin_menu->update(plugin);
5160                                 gui->plugin_menu->activate_menu();
5161                                 result = 1;
5162                         }
5163                         else if (get_double_click() && !drag_start) {
5164 // Select range of plugin on doubleclick over plugin
5165                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5166                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5167                                         plugin->track->from_units(plugin->length));
5168                                 if(mwindow->edl->session->cursor_on_frames) {
5169                                         mwindow->edl->local_session->set_selectionstart(
5170                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5171                                         mwindow->edl->local_session->set_selectionend(
5172                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5173                                 }
5174                                 rerender = 1;
5175                                 redraw = 1;
5176                                 result = 1;
5177                         }
5178                 }
5179                 else
5180 // Move plugin
5181                 if( drag_start && plugin->track->record && !plugin->silence() ) {
5182                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5183                                 if( plugin->track->data_type == TRACK_AUDIO )
5184                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5185                                 else if( plugin->track->data_type == TRACK_VIDEO )
5186                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5187
5188                                 mwindow->session->drag_plugin = plugin;
5189                                 mwindow->session->drag_origin_x = cursor_x;
5190                                 mwindow->session->drag_origin_y = cursor_y;
5191                                 // Where the drag started, so we know relative position inside the edit later
5192                                 mwindow->session->drag_position =
5193                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5194                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5195 // Create picon
5196                                 switch(plugin->plugin_type) {
5197                                 case PLUGIN_STANDALONE: {
5198                                         PluginServer *server =
5199                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5200                                         if( !server ) break;
5201                                         VFrame *frame = server->picon;
5202                                         if(!frame) {
5203                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5204                                                         frame = mwindow->theme->get_image("aeffect_icon");
5205                                                 }
5206                                                 else {
5207                                                         frame = mwindow->theme->get_image("veffect_icon");
5208                                                 }
5209                                         }
5210                                         int cx, cy;
5211                                         get_abs_cursor(cx, cy);
5212                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5213                                                 break; }
5214
5215                                 case PLUGIN_SHAREDPLUGIN:
5216                                 case PLUGIN_SHAREDMODULE: {
5217                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5218                                         int cx, cy;
5219                                         get_abs_cursor(cx, cy);
5220                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5221                                         break; }
5222                                 }
5223
5224                                 result = 1;
5225                         }
5226                 }
5227         }
5228
5229         return result;
5230 }
5231
5232 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5233         int button_press, int &new_cursor, int &update_cursor)
5234 {
5235         Transition *transition = 0;
5236         int result = 0;
5237         int64_t x, y, w, h;
5238
5239
5240         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5241                 if( !track->show_transitions() ) continue;
5242
5243                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5244                         if( edit->transition ) {
5245                                 edit_dimensions(edit, x, y, w, h);
5246                                 get_transition_coords(edit, x, y, w, h);
5247
5248                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5249                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5250                                         if( cursor_x >= x && cursor_x < x + w &&
5251                                                 cursor_y >= y && cursor_y < y + h ) {
5252                                                 transition = edit->transition;
5253                                                 result = 1;
5254                                                 break;
5255                                         }
5256                                 }
5257                         }
5258                 }
5259         }
5260
5261         update_cursor = 1;
5262         if(transition) {
5263                 if(!button_press) {
5264                         new_cursor = UPRIGHT_ARROW_CURSOR;
5265                 }
5266                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5267                         gui->transition_menu->update(transition);
5268                         gui->transition_menu->activate_menu();
5269                 }
5270         }
5271
5272         return result;
5273 }
5274
5275 int TrackCanvas::button_press_event()
5276 {
5277         int result = 0;
5278         int cursor_x, cursor_y;
5279         int new_cursor;
5280
5281         cursor_x = get_cursor_x();
5282         cursor_y = get_cursor_y();
5283         mwindow->session->trim_edits = 0;
5284
5285         if(is_event_win() && cursor_inside()) {
5286 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5287
5288                 result = 1;
5289                 if(!active) {
5290                         activate();
5291                 }
5292
5293                 if( get_buttonpress() == LEFT_BUTTON ) {
5294                         gui->stop_transport("TrackCanvas::button_press_event");
5295                 }
5296
5297                 int update_overlay = 0, update_cursor = 0, rerender = 0, update_message = 0;
5298
5299                 if(get_buttonpress() == WHEEL_UP) {
5300                         if(shift_down())
5301                                 mwindow->expand_sample();
5302                         else if(ctrl_down())
5303                                 mwindow->move_left(get_w()/ 10);
5304                         else
5305                                 mwindow->move_up(get_h() / 10);
5306                 }
5307                 else if(get_buttonpress() == WHEEL_DOWN) {
5308                         if(shift_down())
5309                                 mwindow->zoom_in_sample();
5310                         else if(ctrl_down())
5311                                 mwindow->move_right(get_w() / 10);
5312                         else
5313                                 mwindow->move_down(get_h() / 10);
5314                 }
5315                 else if(get_buttonpress() == 6) {
5316                         if(ctrl_down())
5317                                 mwindow->move_left(get_w());
5318                         else if(alt_down())
5319                                 mwindow->move_left(get_w() / 20);
5320                         else
5321                                 mwindow->move_left(get_w() / 5);
5322                 }
5323                 else if(get_buttonpress() == 7) {
5324                         if(ctrl_down())
5325                                 mwindow->move_right(get_w());
5326                         else if(alt_down())
5327                                 mwindow->move_right(get_w() / 20);
5328                         else
5329                                 mwindow->move_right(get_w() / 5);
5330                 }
5331                 else {
5332                         if( arrow_mode() ) do {
5333 // Test handles and resource boundaries and highlight a track
5334                                 if( do_transitions(cursor_x, cursor_y,
5335                                                 1, new_cursor, update_cursor) ) break;
5336
5337                                 if( do_keyframes(cursor_x, cursor_y,
5338                                         0, get_buttonpress(), new_cursor,
5339                                         update_cursor, rerender) ) break;
5340                                 update_message = 1;
5341 // Test edit boundaries
5342                                 if( do_edit_handles(cursor_x, cursor_y,
5343                                         1, rerender, update_overlay, new_cursor,
5344                                         update_cursor) ) break;
5345 // Test plugin boundaries
5346                                 if( do_plugin_handles(cursor_x, cursor_y,
5347                                         1, rerender, update_overlay, new_cursor,
5348                                         update_cursor) ) break;
5349
5350                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5351                                         update_overlay, rerender, new_cursor,
5352                                         update_cursor) ) break;
5353
5354                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5355                                         update_cursor, rerender) ) break;
5356
5357                                 if( test_resources(cursor_x, cursor_y) ) break;
5358
5359                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5360
5361                                 result = 0;
5362                         } while(0);
5363                         else if( ibeam_mode() ) do {
5364 // Test handles only and select a region
5365                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5366 //printf("TrackCanvas::button_press_event %d\n", position);
5367
5368                                 if( do_transitions(cursor_x, cursor_y,
5369                                                 1, new_cursor, update_cursor)) break;
5370                                 if(do_keyframes(cursor_x, cursor_y,
5371                                         0, get_buttonpress(), new_cursor,
5372                                         update_cursor, rerender)) {
5373                                         update_overlay = 1;
5374                                         break;
5375                                 }
5376                                 update_message = 1;
5377 // Test edit boundaries
5378                                 if( do_edit_handles(cursor_x, cursor_y,
5379                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5380 // Test plugin boundaries
5381                                 if( do_plugin_handles(cursor_x, cursor_y,
5382                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5383
5384                                 if( do_edits(cursor_x, cursor_y,
5385                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5386
5387                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5388
5389                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5390 // Highlight selection
5391                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5392                                 rerender = start_selection(position);
5393                                 mwindow->session->current_operation = SELECT_REGION;
5394                                 update_cursor = 1;
5395                         } while(0);
5396                 }
5397
5398                 if( rerender ) {
5399                         gui->unlock_window();
5400                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5401                         gui->lock_window("TrackCanvas::button_press_event 2");
5402 // Update faders
5403                         mwindow->update_plugin_guis();
5404                         gui->update_patchbay();
5405                 }
5406
5407                 if( update_message )
5408                         gui->default_message();
5409
5410                 if( update_overlay )
5411                         gui->draw_overlays(1);
5412
5413                 if( update_cursor < 0 ) {
5414 // double_click edit
5415                         gui->swindow->update_selection();
5416                         gui->draw_canvas(0, 0);
5417                 }
5418                 if( update_cursor ) {
5419                         gui->update_timebar(0);
5420                         gui->hide_cursor(0);
5421                         gui->show_cursor(1);
5422                         gui->zoombar->update();
5423                         gui->flash_canvas(1);
5424                 }
5425         }
5426
5427         return result;
5428 }
5429
5430 int TrackCanvas::start_selection(double position)
5431 {
5432         int rerender = 0;
5433         position = mwindow->edl->align_to_frame(position, 1);
5434
5435
5436 // Extend a border
5437         if(shift_down())
5438         {
5439                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5440                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5441
5442                 if(position < midpoint)
5443                 {
5444                         mwindow->edl->local_session->set_selectionstart(position);
5445                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5446 // Que the CWindow
5447                         rerender = 1;
5448                 }
5449                 else
5450                 {
5451                         mwindow->edl->local_session->set_selectionend(position);
5452                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5453 // Don't que the CWindow for the end
5454                 }
5455         }
5456         else
5457 // Start a new selection
5458         {
5459 //printf("TrackCanvas::start_selection %f\n", position);
5460                 mwindow->edl->local_session->set_selectionstart(position);
5461                 mwindow->edl->local_session->set_selectionend(position);
5462                 selection_midpoint = position;
5463 // Que the CWindow
5464                 rerender = 1;
5465         }
5466
5467         return rerender;
5468 }
5469
5470 void TrackCanvas::end_edithandle_selection()
5471 {
5472         mwindow->modify_edithandles();
5473 }
5474
5475 void TrackCanvas::end_pluginhandle_selection()
5476 {
5477         mwindow->modify_pluginhandles();
5478 }
5479
5480
5481 double TrackCanvas::time_visible()
5482 {
5483         return (double)get_w() *
5484                 mwindow->edl->local_session->zoom_sample /
5485                 mwindow->edl->session->sample_rate;
5486 }
5487
5488
5489 void TrackCanvas::show_message(Auto *current, int box_color, const char *fmt, ...)
5490 {
5491         char string[BCTEXTLEN];
5492         char *cp = string, *ep = cp + sizeof(string)-1;
5493         if( box_color >= 0 ) {
5494                 cp += snprintf(string, ep-cp, "%-8s ",
5495                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5496         }
5497         char string2[BCTEXTLEN];
5498         Units::totext(string2,
5499                 current->autos->track->from_units(current->position),
5500                 mwindow->edl->session->time_format,
5501                 mwindow->edl->session->sample_rate,
5502                 mwindow->edl->session->frame_rate,
5503                 mwindow->edl->session->frames_per_foot);
5504         cp += snprintf(cp, ep-cp, "%s", string2);
5505         va_list ap;
5506         va_start(ap, fmt);
5507         vsnprintf(cp, ep-cp, fmt, ap);
5508         va_end(ap);
5509         gui->show_message(string, -1, box_color);
5510 }
5511
5512 // Patchbay* TrackCanvas::get_patchbay()
5513 // {
5514 //      if(pane->patchbay) return pane->patchbay;
5515 //      if(gui->total_panes() == 2 &&
5516 //              gui->pane[TOP_LEFT_PANE] &&
5517 //              gui->pane[TOP_RIGHT_PANE])
5518 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5519 //      if(gui->total_panes() == 4)
5520 //      {
5521 //              if(pane->number == TOP_RIGHT_PANE)
5522 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5523 //              else
5524 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5525 //      }
5526 //
5527 //      return 0;
5528 // }
5529
5530