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, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1319                 return;
1320         } else
1321         if (x >= get_w())
1322         {
1323                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1324                 return;
1325         }
1326
1327 // Fix bug in heroines & cvs version as of 22.8.2005:
1328 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1329         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1330         if(x < -10)
1331         {
1332                 w += x - -10;
1333                 x = -10;
1334         }
1335
1336         if(y < -10)
1337         {
1338                 h += y - -10;
1339                 y = -10;
1340         }
1341
1342         w = MIN(w, get_w() + 20);
1343         h = MIN(h, get_h() + 20);
1344         if(w > 0 && h > 0)
1345         {
1346                 set_color(mwindow->preferences->highlight_inverse);
1347                 set_inverse();
1348                 //draw_rectangle(x, y, w, h);
1349                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1350                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1351                 set_opaque();
1352                 draw_rectangle(x, y, w, h);
1353         }
1354 //if(pane->number == TOP_RIGHT_PANE)
1355 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1356 }
1357
1358 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1359 {
1360
1361 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1362 // just draw arrows, so user has indication that something is there
1363 // FIXME: get better colors
1364
1365
1366
1367         int h1 = h / 8;
1368         int h2 = h / 4;
1369
1370         set_inverse();
1371
1372 /* these don't look so good
1373
1374         draw_line(x, y, x, y+h);
1375         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1376         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1377         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1378         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1379 */
1380         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1381         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1382
1383 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1384         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1385         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1386         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1387 */
1388         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1389         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1390
1391 // draw the box centred around x
1392         x -= w / 2;
1393 // Fix bug in heroines & cvs version as of 22.8.2005:
1394 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1395         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1396         if(x < -10)
1397         {
1398                 w += x - -10;
1399                 x = -10;
1400         }
1401         if(y < -10)
1402         {
1403                 h += y - -10;
1404                 y = -10;
1405         }
1406         w = MIN(w, get_w() + 20);
1407         h = MIN(h, get_h() + 20);
1408         set_color(mwindow->preferences->highlight_inverse);
1409         set_inverse();
1410         draw_rectangle(x, y, w, h);
1411         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1412         set_opaque();
1413 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1414 }
1415
1416 void TrackCanvas::draw_playback_cursor()
1417 {
1418 // Called before playback_cursor exists
1419 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1420 //      {
1421 //              mwindow->playback_cursor->visible = 0;
1422 //              mwindow->playback_cursor->draw();
1423 //      }
1424 }
1425
1426 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1427 {
1428         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1429         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1430
1431         edit_dimensions(edit, x, y, w, h);
1432
1433         if( edit->track->show_titles() )
1434                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1435
1436         if(side == EDIT_OUT)
1437                 x += w - handle_w;
1438
1439         h = handle_h;
1440         w = handle_w;
1441 }
1442
1443 void TrackCanvas::get_transition_coords(Edit *edit,
1444                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1445 {
1446         int transition_w = 30, transition_h = 30;
1447         int has_titles = edit->track->show_titles();
1448         int has_assets = edit->track->show_assets();
1449         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1450         double asset_h = resource_h();
1451         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
1452         double dy = has_titles ?
1453                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2 ) :
1454                 ( has_assets ? asset_h/2 : 0) ;
1455         double title_h = mwindow->theme->title_h;
1456         if( dy < title_h / 2 ) { ys = title_h;  dy = ys / 2; }
1457         y += dy;
1458
1459         x -= transition_w / 2;
1460         y -= transition_h / 2;
1461         w = transition_w;
1462         h = transition_h;
1463 }
1464
1465 void TrackCanvas::draw_highlighting()
1466 {
1467         int64_t x, y, w, h;
1468         int draw_box = 0;
1469
1470         switch(mwindow->session->current_operation)
1471         {
1472                 case DRAG_ATRANSITION:
1473                 case DRAG_VTRANSITION:
1474 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1475 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1476                         if(mwindow->session->edit_highlighted) {
1477                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1478                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1479                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1480                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1481                                         edit_dimensions(mwindow->session->edit_highlighted,
1482                                                 x, y, w, h);
1483                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1484                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1485                                                 draw_box = 1;
1486                                                 get_transition_coords(mwindow->session->edit_highlighted,
1487                                                         x, y, w, h);
1488                                         }
1489                                 }
1490                         }
1491                         break;
1492
1493 // Dragging a new effect from the Resource window
1494                 case DRAG_AEFFECT:
1495                 case DRAG_VEFFECT:
1496                         if(mwindow->session->track_highlighted &&
1497                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1498                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1499                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1500                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1501 // Put it before another plugin
1502                                 if(mwindow->session->plugin_highlighted) {
1503                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1504                                                 x, y, w, h);
1505 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1506                                 }
1507 // Put it after a plugin set
1508                                 else if( mwindow->session->pluginset_highlighted &&
1509                                          mwindow->session->pluginset_highlighted->last ) {
1510                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1511                                                 x, y, w, h);
1512 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1513                                         int64_t track_x, track_y, track_w, track_h;
1514                                         track_dimensions(mwindow->session->track_highlighted,
1515                                                 track_x, track_y, track_w, track_h);
1516
1517                                         x += w;
1518                                         w = Units::round(
1519                                                         mwindow->session->track_highlighted->get_length() *
1520                                                         mwindow->edl->session->sample_rate /
1521                                                         mwindow->edl->local_session->zoom_sample -
1522                                                         mwindow->edl->local_session->view_start[pane->number]) -
1523                                                 x;
1524 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1525                                         if(w <= 0) w = track_w;
1526                                 }
1527                                 else {
1528                                         track_dimensions(mwindow->session->track_highlighted,
1529                                                 x, y, w, h);
1530
1531 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1532 // Put it in a new plugin set determined by the selected range
1533                                         if(mwindow->edl->local_session->get_selectionend() >
1534                                                 mwindow->edl->local_session->get_selectionstart()) {
1535                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1536                                                         mwindow->edl->session->sample_rate /
1537                                                         mwindow->edl->local_session->zoom_sample -
1538                                                         mwindow->edl->local_session->view_start[pane->number]);
1539                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1540                                                         mwindow->edl->local_session->get_selectionstart()) *
1541                                                         mwindow->edl->session->sample_rate /
1542                                                         mwindow->edl->local_session->zoom_sample);
1543                                         }
1544 // Put it in a new plugin set determined by an edit boundary
1545                                         else if(mwindow->session->edit_highlighted) {
1546                                                 int64_t temp_y, temp_h;
1547                                                 edit_dimensions(mwindow->session->edit_highlighted,
1548                                                         x, temp_y, w, temp_h);
1549                                         }
1550 // Put it at the beginning of the track in a new plugin set
1551                                 }
1552
1553                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1554                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1555 //printf("TrackCanvas::draw_highlighting 1\n");
1556                                         draw_box = 1;
1557                                 }
1558                         }
1559                         break;
1560
1561                 case DRAG_ASSET:
1562                         if(mwindow->session->track_highlighted) {
1563 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1564
1565 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1566 //                              {
1567                                         draw_paste_destination();
1568 //                              }
1569                         }
1570                         break;
1571
1572                 case DRAG_EDIT:
1573                         if(mwindow->session->track_highlighted) {
1574 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1575 //
1576 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1577                                         draw_paste_destination();
1578 //                              }
1579                         }
1580                         break;
1581                 case DRAG_GROUP:
1582                         if( mwindow->session->track_highlighted && mwindow->session->drag_group &&
1583                             mwindow->session->drag_group_edit && mwindow->session->drag_group_first_track ) {
1584                                 Track *track = mwindow->session->track_highlighted;
1585                                 EDL *drag_group = mwindow->session->drag_group;
1586                                 Track *edit_track = mwindow->session->drag_group_edit->track;
1587                                 Track *drag_track = mwindow->session->drag_group_first_track;
1588                                 while( track && edit_track && edit_track != drag_track ) {
1589                                         edit_track = edit_track->previous;
1590                                         track = track->previous;
1591                                 }
1592                                 int cx = get_cursor_x();
1593                                 double cur_pos = mwindow->session->drag_group_position;
1594                                 double new_pos = mwindow->edl->get_cursor_position(cx, pane->number);
1595                                 new_pos -= mwindow->session->drag_position - cur_pos;
1596                                 new_pos = mwindow->edl->align_to_frame(new_pos, 0);
1597                                 double drop_position = new_pos;
1598                                 int color = GREEN;
1599                                 int ret = test_track_group(drag_group, track, new_pos);
1600                                 if( ret < 0 )
1601                                         color = ORANGE;
1602                                 else if( !ret ) {
1603                                         if( new_pos != drop_position ) {
1604                                                 double pos = new_pos;
1605                                                 pos += mwindow->session->drag_position - cur_pos;
1606                                                 cx = mwindow->edl->get_position_cursorx(pos, pane->number);
1607                                                 ret = test_track_group(drag_group, track, new_pos);
1608                                         }
1609                                         color = ret > 0 ? YELLOW : shift_down() ? RED : BLUE;
1610                                 }
1611                                 track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1612                                 int dx = cx - mwindow->session->drag_origin_x;
1613                                 int dy = y - mwindow->session->drag_origin_y;
1614                                 draw_selected_edits(mwindow->edl, dx, dy, color, -1);
1615                         }
1616                         break;
1617 // Dragging an effect from the timeline
1618                 case DRAG_AEFFECT_COPY:
1619                 case DRAG_VEFFECT_COPY:
1620                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1621                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1622                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1623                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1624                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1625
1626                                 int64_t plugin_position = -1;
1627                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1628                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1629                                 Track *hi_track = mwindow->session->track_highlighted;
1630                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1631 // Put it into a silence zone
1632                                 if( hi_plugin_set && hi_plugin_set->last &&
1633                                     hi_plugin_set->track == drag_plugin->track ) {
1634                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1635                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1636                                         hi_track = drag_plugin->track;
1637                                 }
1638                                 else if( hi_track ) {
1639 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1640                                         track_dimensions(hi_track, x, y, w, h);
1641                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1642                                 }
1643
1644                                 if( plugin_position < 0 ) break;
1645
1646 // Calculate length of plugin based on data type of track and units
1647                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1648                                                 mwindow->edl->local_session->zoom_sample;
1649                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1650                                                 mwindow->edl->local_session->view_start[pane->number];
1651                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1652
1653                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1654                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1655                                         draw_box = 1;
1656                                 }
1657                         }
1658                         break;
1659
1660                 case DRAG_PLUGINKEY:
1661                         if(mwindow->session->plugin_highlighted &&
1662                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1663                         {
1664 // Just highlight the plugin
1665                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1666
1667                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1668                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1669                                 {
1670                                         draw_box = 1;
1671                                 }
1672                         }
1673                         break;
1674
1675         }
1676
1677         if( draw_box )
1678                 draw_highlight_rectangle(x, y, w, h);
1679
1680         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1681 }
1682
1683 // x does not reliably draw a really big rectangle
1684 void TrackCanvas::draw_selected(int x, int y, int w, int h)
1685 {
1686         int x1 = bmax(x, 0), x2 = bmin(x+w, get_w());
1687         if( x1 > x2 ) return;
1688         int y1 = bmax(y, 0), y2 = bmin(y+h, get_h());
1689         if( y1 > y2 ) return;
1690         if( x   >= 0 && x   < get_w() ) draw_line(x,y1,   x,y2);
1691         if( x+w >= 0 && x+w < get_w() ) draw_line(x+w,y1, x+w,y2);
1692         if( y   >= 0 && y   < get_h() ) draw_line(x1,y,   x2,y);
1693         if( y+h >= 0 && y+h < get_h() ) draw_line(x1,y+h, x2,y+h);
1694 }
1695
1696 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1697 {
1698         for( Track *track=edl->tracks->first; track; track=track->next ) {
1699                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1700                         if( !edit->is_selected ) continue;
1701                         int64_t x, y, w, h;
1702                         edit_dimensions(edit, x, y, w, h);
1703                         x += dx;  y += dy;
1704                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1705                         if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1706                         set_opaque();
1707                         int inner = color1 < 0 ? color0 : !edit->group_id ? color0 :
1708                                 mwindow->get_group_color(edit->group_id);
1709                         set_color(inner);
1710                         draw_selected(x, y, w, h);
1711                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1712                         set_color(outer);
1713                         draw_selected(x-1, y-1, w+2, h+2);
1714                         draw_selected(x-2, y-2, w+1, h+1);
1715                 }
1716         }
1717 }
1718
1719 void TrackCanvas::draw_plugins()
1720 {
1721         char string[BCTEXTLEN];
1722         int current_on = 0;
1723         int current_show = 0;
1724         int current_preset = 0;
1725
1726         for(int i = 0; i < plugin_on_toggles.total; i++)
1727                 plugin_on_toggles.values[i]->in_use = 0;
1728         for(int i = 0; i < plugin_show_toggles.total; i++)
1729                 plugin_show_toggles.values[i]->in_use = 0;
1730         for(int i = 0; i < preset_edit_buttons.total; i++)
1731                 plugin_show_toggles.values[i]->in_use = 0;
1732
1733
1734         for(Track *track = mwindow->edl->tracks->first;
1735                 track;
1736                 track = track->next)
1737         {
1738                 if(track->expand_view)
1739                 {
1740                         for(int i = 0; i < track->plugin_set.total; i++)
1741                         {
1742                                 PluginSet *pluginset = track->plugin_set.values[i];
1743
1744                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1745                                 {
1746                                         int64_t total_x, y, total_w, h;
1747                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1748
1749                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1750                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1751                                                 plugin->plugin_type != PLUGIN_NONE)
1752                                         {
1753                                                 int x = total_x, w = total_w, left_margin = 5;
1754                                                 int right_margin = 5;
1755                                                 if(x < 0)
1756                                                 {
1757                                                         w -= -x;
1758                                                         x = 0;
1759                                                 }
1760                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1761
1762                                                 draw_3segmenth(x,
1763                                                         y,
1764                                                         w,
1765                                                         total_x,
1766                                                         total_w,
1767                                                         mwindow->theme->get_image("plugin_bg_data"),
1768                                                         0);
1769                                                 set_color(mwindow->theme->title_color);
1770                                                 set_font(mwindow->theme->title_font);
1771                                                 plugin->calculate_title(string, 0);
1772
1773 // Truncate string to int64_test visible in background
1774                                                 int len = strlen(string), j;
1775                                                 for(j = len; j >= 0; j--)
1776                                                 {
1777                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1778                                                         {
1779                                                                 string[j] = 0;
1780                                                         }
1781                                                         else
1782                                                                 break;
1783                                                 }
1784
1785 // Justify the text on the left boundary of the edit if it is visible.
1786 // Otherwise justify it on the left side of the screen.
1787                                                 int64_t text_x = total_x + left_margin;
1788                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1789                                                 text_x = MAX(left_margin, text_x);
1790                                                 draw_text(text_x,
1791                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1792                                                         string,
1793                                                         strlen(string),
1794                                                         0);
1795                                                 int64_t min_x = total_x + text_w;
1796
1797
1798 // Update plugin toggles
1799                                                 int toggle_x = total_x + total_w;
1800                                                 int toggle_y = y;
1801                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1802
1803 // On toggle
1804                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1805                                                 if(toggle_x > min_x)
1806                                                 {
1807                                                         if(current_on >= plugin_on_toggles.total)
1808                                                         {
1809                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1810                                                                 add_subwindow(plugin_on);
1811                                                                 plugin_on_toggles.append(plugin_on);
1812                                                         }
1813                                                         else
1814                                                         {
1815                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1816                                                         }
1817                                                         current_on++;
1818                                                 }
1819
1820 // Toggles for standalone plugins only
1821                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1822                                                 {
1823 // Show
1824                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1825                                                         if(toggle_x > min_x)
1826                                                         {
1827                                                                 if(current_show >= plugin_show_toggles.total)
1828                                                                 {
1829                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1830                                                                         add_subwindow(plugin_show);
1831                                                                         plugin_show_toggles.append(plugin_show);
1832                                                                 }
1833                                                                 else
1834                                                                 {
1835                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1836                                                                 }
1837                                                                 current_show++;
1838                                                         }
1839                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + 10;
1840                                                         if(toggle_x > min_x)
1841                                                         {
1842                                                                 if(current_preset >= preset_edit_buttons.total)
1843                                                                 {
1844                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1845                                                                         add_subwindow(preset_edit);
1846                                                                         preset_edit_buttons.append(preset_edit);
1847                                                                 }
1848                                                                 else
1849                                                                 {
1850                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1851                                                                 }
1852                                                                 current_preset++;
1853                                                         }
1854                                                 }
1855                                         }
1856                                 }
1857                         }
1858                 }
1859         }
1860
1861 // Remove unused toggles
1862
1863         while(current_preset < preset_edit_buttons.total)
1864         {
1865                 preset_edit_buttons.remove_object_number(current_preset);
1866         }
1867         while(current_show < plugin_show_toggles.total)
1868         {
1869                 plugin_show_toggles.remove_object_number(current_show);
1870         }
1871
1872         while(current_on < plugin_on_toggles.total)
1873         {
1874                 plugin_on_toggles.remove_object_number(current_on);
1875         }
1876 }
1877
1878 void TrackCanvas::refresh_plugintoggles()
1879 {
1880         for(int i = 0; i < plugin_on_toggles.total; i++)
1881         {
1882                 PluginOn *on = plugin_on_toggles.values[i];
1883                 on->reposition_window(on->get_x(), on->get_y());
1884         }
1885         for(int i = 0; i < plugin_show_toggles.total; i++)
1886         {
1887                 PluginShow *show = plugin_show_toggles.values[i];
1888                 show->reposition_window(show->get_x(), show->get_y());
1889         }
1890         for(int i = 0; i < preset_edit_buttons.total; i++)
1891         {
1892                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1893                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1894         }
1895 }
1896
1897 void TrackCanvas::draw_hard_edges()
1898 {
1899         if( !mwindow->edl->session->auto_conf->hard_edges )
1900                 return;
1901         int64_t x, y, w, h;
1902
1903         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1904                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1905                         if( !edit->hard_left && !edit->hard_right ) continue;
1906                         edit_dimensions(edit, x, y, w, h);
1907                         set_color(GREEN);
1908                         set_opaque();
1909                         int y1 = y;
1910                         if( track->show_titles() )
1911                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1912                         if( track->show_assets() )
1913                                 y1 += resource_h();
1914                         if( y1 == y )
1915                                 y1 += mwindow->theme->title_h;
1916                         if( edit->hard_left ) {
1917                                 ArrayList<int> xpt, ypt;
1918                                 xpt.append(x);              ypt.append(y1);
1919                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1920                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1921                                 fill_polygon(&xpt, &ypt);
1922                         }
1923                         if( edit->hard_right ) {
1924                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1925                                 xpt.append(x1);            ypt.append(y1);
1926                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1927                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1928                                 fill_polygon(&xpt, &ypt);
1929                         }
1930                 }
1931         }
1932 }
1933
1934 void TrackCanvas::draw_inout_points()
1935 {
1936 }
1937
1938
1939 void TrackCanvas::draw_drag_handle()
1940 {
1941         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 &&
1942             mwindow->session->current_operation != DRAG_PLUGINHANDLE2 ) return;
1943         int64_t pixel1 = Units::round(mwindow->session->drag_position *
1944                 mwindow->edl->session->sample_rate /
1945                 mwindow->edl->local_session->zoom_sample -
1946                 mwindow->edl->local_session->view_start[pane->number]);
1947         set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1948         set_inverse();
1949         draw_line(pixel1, 0, pixel1, get_h());
1950         set_opaque();
1951
1952         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 ) return;
1953         if( !mwindow->session->drag_edit ) return;
1954         int group_id = mwindow->session->drag_edit->group_id;
1955         if( !group_id ) return;
1956         int64_t dx, dy, dw, dh;
1957         edit_dimensions(mwindow->session->drag_edit, dx, dy, dw, dh);
1958         int drag_handle = mwindow->session->drag_handle;
1959         int64_t pixel0 = !drag_handle ? dx : dx + dw;
1960         int delta = pixel1 - pixel0;
1961         set_color(LTPURPLE);
1962         set_line_width(3);
1963
1964         for( Track *track=mwindow->edl->tracks->first; track; track=track->next ) {
1965                 Edit *left = 0, *right = 0;
1966                 double start = DBL_MAX, end = DBL_MIN;
1967                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1968                         if( edit->group_id != group_id ) continue;
1969                         double edit_start = edit->track->from_units(edit->startproject);
1970                         if( edit_start < start ) { start = edit_start;  left = edit; }
1971                         double edit_end = edit->track->from_units(edit->startproject+edit->length);
1972                         if( edit_end > end ) { end = edit_end;  right = edit; }
1973                 }
1974                 Edit *edit = !drag_handle ? left : right;
1975                 if( !edit ) continue;
1976                 Indexable *idxbl = edit->asset;
1977                 if( !idxbl ) idxbl = edit->nested_edl;
1978                 int can_drag = idxbl ? 1 : 0;
1979                 if( drag_handle ) {
1980                         int64_t source_len = !idxbl ? -1 :
1981                                 edit->track->data_type == TRACK_AUDIO ?
1982                                         idxbl->get_audio_samples() :
1983                                 edit->track->data_type == TRACK_VIDEO ?
1984                                         idxbl->get_video_frames() : -1;
1985                         if( edit->startsource + edit->length >= source_len )
1986                                 can_drag = 0;
1987                 }
1988                 else if( !edit->startsource )
1989                         can_drag = 0;
1990                 int64_t x, y, w, h;
1991                 edit_dimensions(edit, x, y, w, h);
1992                 if( y+h < 0 || y >= get_h() ) continue;
1993                 int edge_x = !drag_handle ? x : x + w;
1994                 int edge_y = y + h/2, k = 10;
1995                 if( edge_x >= 0 && edge_x < get_w() ) {
1996                         if( !can_drag ) {
1997                                 draw_line(edge_x-k,edge_y-k, edge_x+k,edge_y+k);
1998                                 draw_line(edge_x-k,edge_y+k, edge_x+k,edge_y-k);
1999                         }
2000                         else if( !drag_handle ) {
2001                                 draw_line(edge_x+k,edge_y-k, edge_x,edge_y);
2002                                 draw_line(edge_x+k,edge_y+k, edge_x,edge_y);
2003                         }
2004                         else {
2005                                 draw_line(edge_x,edge_y, edge_x-k,edge_y-k);
2006                                 draw_line(edge_x,edge_y, edge_x-k,edge_y+k);
2007                         }
2008                 }
2009                 edge_x += delta;
2010                 if( edge_x >= 0 && edge_x < get_w() ) {
2011                         draw_line(edge_x, y, edge_x, y+h);
2012                 }
2013         }
2014         set_line_width(1);
2015 }
2016
2017
2018 void TrackCanvas::draw_transitions()
2019 {
2020         int64_t x, y, w, h;
2021
2022         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2023                 if( !track->show_transitions() ) continue;
2024
2025                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2026                         if(!edit->transition) continue;
2027                         edit_dimensions(edit, x, y, w, h);
2028                         int strip_x = x, edit_y = y;
2029                         get_transition_coords(edit, x, y, w, h);
2030                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2031                         if( track->show_assets() && track->show_titles() )
2032                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2033                         if( strip_y < edit_y ) strip_y = edit_y;
2034
2035                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2036                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2037                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2038                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2039                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2040                                                 track->data_type);
2041                                 if( !server ) continue;
2042                                 VFrame *picon = server->get_picon();
2043                                 if( !picon ) continue;
2044                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2045                                 int track_h = edit->track->vertical_span(mwindow->theme);
2046                                 if( picon_h > track_h ) picon_h = track_h;
2047                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2048                         }
2049                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2050                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2051                                 int x = strip_x, w = strip_w;
2052                                 if( x < 0 ) {  w -= -x;  x = 0; }
2053                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2054
2055                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2056                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2057                         }
2058                 }
2059         }
2060 }
2061
2062 void TrackCanvas::draw_loop_points()
2063 {
2064 //printf("TrackCanvas::draw_loop_points 1\n");
2065         if(mwindow->edl->local_session->loop_playback)
2066         {
2067 //printf("TrackCanvas::draw_loop_points 2\n");
2068                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2069                         mwindow->edl->session->sample_rate /
2070                         mwindow->edl->local_session->zoom_sample -
2071                         mwindow->edl->local_session->view_start[pane->number]);
2072 //printf("TrackCanvas::draw_loop_points 3\n");
2073
2074                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2075                 {
2076                         set_color(GREEN);
2077                         draw_line(x, 0, x, get_h());
2078                 }
2079 //printf("TrackCanvas::draw_loop_points 4\n");
2080
2081                 x = Units::round(mwindow->edl->local_session->loop_end *
2082                         mwindow->edl->session->sample_rate /
2083                         mwindow->edl->local_session->zoom_sample -
2084                         mwindow->edl->local_session->view_start[pane->number]);
2085 //printf("TrackCanvas::draw_loop_points 5\n");
2086
2087                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2088                 {
2089                         set_color(GREEN);
2090                         draw_line(x, 0, x, get_h());
2091                 }
2092 //printf("TrackCanvas::draw_loop_points 6\n");
2093         }
2094 //printf("TrackCanvas::draw_loop_points 7\n");
2095 }
2096
2097 void TrackCanvas::draw_brender_range()
2098 {
2099         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2100         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2101         if( mwindow->edl->session->brender_end > 0 )
2102         {
2103                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2104                         mwindow->edl->session->sample_rate /
2105                         mwindow->edl->local_session->zoom_sample -
2106                         mwindow->edl->local_session->view_start[pane->number]);
2107                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2108                 {
2109                         set_color(RED);
2110                         draw_line(x1, 0, x1, get_h());
2111                 }
2112                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2113                         mwindow->edl->session->sample_rate /
2114                         mwindow->edl->local_session->zoom_sample -
2115                         mwindow->edl->local_session->view_start[pane->number]);
2116
2117                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2118                 {
2119                         set_color(RED);
2120                         draw_line(x2, 0, x2, get_h());
2121                 }
2122         }
2123 }
2124
2125 // The operations which correspond to each automation type
2126 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2127 {
2128         DRAG_MUTE,
2129         DRAG_CAMERA_X,
2130         DRAG_CAMERA_Y,
2131         DRAG_CAMERA_Z,
2132         DRAG_PROJECTOR_X,
2133         DRAG_PROJECTOR_Y,
2134         DRAG_PROJECTOR_Z,
2135         DRAG_FADE,
2136         DRAG_PAN,
2137         DRAG_MODE,
2138         DRAG_MASK,
2139         DRAG_SPEED
2140 };
2141
2142 // The buttonpress operations, so nothing changes unless the mouse moves
2143 // a certain amount.  This allows the keyframe to be used to position the
2144 // insertion point without moving itself.
2145 static int pre_auto_operations[AUTOMATION_TOTAL] =
2146 {
2147         DRAG_MUTE,
2148         DRAG_CAMERA_X,
2149         DRAG_CAMERA_Y,
2150         DRAG_CAMERA_Z,
2151         DRAG_PROJECTOR_X,
2152         DRAG_PROJECTOR_Y,
2153         DRAG_PROJECTOR_Z,
2154         DRAG_FADE,
2155         DRAG_PAN_PRE,
2156         DRAG_MODE_PRE,
2157         DRAG_MASK_PRE,
2158         DRAG_SPEED
2159 };
2160
2161
2162 int TrackCanvas::do_keyframes(int cursor_x,
2163         int cursor_y,
2164         int draw,
2165         int buttonpress,
2166         int &new_cursor,
2167         int &update_cursor,
2168         int &rerender)
2169 {
2170 // Note: button 3 (right mouse button) is not eaten to allow
2171 // track context menu to appear
2172         int result = 0;
2173         EDLSession *session = mwindow->edl->session;
2174
2175
2176
2177         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2178         {
2179                 0, 0, 0, 0, 0, 0, 0, 0,
2180                 pankeyframe_pixmap,
2181                 modekeyframe_pixmap,
2182                 maskkeyframe_pixmap,
2183                 0,
2184         };
2185
2186
2187
2188         for(Track *track = mwindow->edl->tracks->first;
2189                 track && !result;
2190                 track = track->next) {
2191                 Auto *auto_keyframe = 0;
2192                 Automation *automation = track->automation;
2193
2194
2195 // Handle keyframes in reverse drawing order if a button press
2196                 int start = 0;
2197                 int end = AUTOMATION_TOTAL;
2198                 int step = 1;
2199                 if(buttonpress)
2200                 {
2201                         start = AUTOMATION_TOTAL - 1;
2202                         end = -1;
2203                         step = -1;
2204                 }
2205                 for(int i = start; i != end && !result; i += step)
2206                 {
2207 // Event not trapped and automation visible
2208                         Autos *autos = automation->autos[i];
2209                         if(!result && session->auto_conf->autos[i] && autos) {
2210                                 switch(i) {
2211                                 case AUTOMATION_MODE:
2212                                 case AUTOMATION_PAN:
2213                                 case AUTOMATION_MASK:
2214                                         result = do_autos(track, automation->autos[i],
2215                                                 cursor_x, cursor_y, draw,
2216                                                 buttonpress, auto_pixmaps[i],
2217                                                 auto_keyframe, rerender);
2218                                                 break;
2219
2220                                 default: {
2221                                         switch(autos->get_type()) {
2222                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2223                                                 Automation automation(0, track);
2224                                                 int grouptype = automation.autogrouptype(i, track);
2225                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2226                                                         mwindow->speed_before();
2227                                                 }
2228
2229                                                 if(draw) // Do dropshadow
2230                                                         result = do_float_autos(track, autos,
2231                                                                 cursor_x, cursor_y, draw,
2232                                                                 buttonpress, 1, 1, MDGREY,
2233                                                                 auto_keyframe, grouptype);
2234                                                 result = do_float_autos(track, autos,
2235                                                         cursor_x, cursor_y, draw, buttonpress,
2236                                                         0, 0, GWindowGUI::auto_colors[i],
2237                                                         auto_keyframe, grouptype);
2238
2239                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2240                                                         mwindow->speed_after(-1);
2241                                                 if( result && buttonpress ) {
2242                                                         int color = GWindowGUI::auto_colors[i];
2243                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2244                                                 }
2245                                                 break; }
2246
2247                                         case Autos::AUTOMATION_TYPE_INT: {
2248                                                 if(draw) // Do dropshadow
2249                                                         result = do_int_autos(track, autos,
2250                                                                 cursor_x, cursor_y, draw,
2251                                                                 buttonpress, 1, 1, MDGREY,
2252                                                                 auto_keyframe);
2253                                                 result = do_int_autos(track, autos,
2254                                                         cursor_x, cursor_y, draw, buttonpress,
2255                                                         0, 0, GWindowGUI::auto_colors[i],
2256                                                         auto_keyframe);
2257                                                 break; }
2258                                         }
2259                                         break; }
2260                                 }
2261
2262                                 if(result)
2263                                 {
2264                                         if(mwindow->session->current_operation == auto_operations[i])
2265                                                 rerender = 1;
2266
2267 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2268 // __LINE__,
2269 // mwindow->session->current_operation,
2270 // auto_operations[i]);
2271                                         if(buttonpress)
2272                                         {
2273                                                 if (buttonpress == 2 && auto_keyframe )
2274                                                 {
2275                                                         double position = track->from_units(auto_keyframe->position);
2276                                                         mwindow->edl->local_session->set_selectionstart(position);
2277                                                         mwindow->edl->local_session->set_selectionend(position);
2278                                                 }
2279                                                 if (buttonpress != 3)
2280                                                 {
2281                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2282                                                                 fill_ganged_autos(get_double_click(), 0, track,
2283                                                                         (FloatAuto*)mwindow->session->drag_auto);
2284                                                         mwindow->session->current_operation = pre_auto_operations[i];
2285                                                         update_drag_caption();
2286                                                         rerender = 1;
2287                                                 }
2288                                                 else if( auto_keyframe )
2289                                                 {
2290                                                         gui->keyframe_menu->update(automation,
2291                                                                 autos,
2292                                                                 auto_keyframe);
2293                                                         gui->keyframe_menu->activate_menu();
2294                                                         rerender = 1; // the position changes
2295                                                 }
2296                                                 else if( autos )
2297                                                 {
2298                                                         gui->keyframe_hide->update(autos);
2299                                                         gui->keyframe_hide->activate_menu();
2300                                                         rerender = 1; // the position changes
2301                                                 }
2302                                                 if(buttonpress == 1 && ctrl_down() &&
2303                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2304                                                         rerender = 1; // special case: curve mode changed
2305                                         }
2306                                 }
2307                         }
2308                 }
2309
2310                 if(!result && session->auto_conf->plugins) {
2311                         Plugin *plugin;
2312                         KeyFrame *keyframe;
2313                         result = do_plugin_autos(track, cursor_x, cursor_y,
2314                                 draw, buttonpress, plugin, keyframe);
2315                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2316                                 rerender = 1;
2317                         }
2318                         if(result && (buttonpress == 1)) {
2319                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2320                                 update_drag_caption();
2321                                 rerender = 1;
2322                         }
2323                         else if (result && (buttonpress == 3)) {
2324                                 gui->keyframe_menu->update(plugin, keyframe);
2325                                 gui->keyframe_menu->activate_menu();
2326                                 rerender = 1; // the position changes
2327                         }
2328                 }
2329         }
2330
2331 // Final pass to trap event
2332         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2333                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2334                         mwindow->session->current_operation == auto_operations[i]) {
2335                         result = 1;
2336                         break;
2337                 }
2338         }
2339
2340         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2341                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2342                 result = 1;
2343         }
2344
2345         update_cursor = 1;
2346         if(result) {
2347                 new_cursor = UPRIGHT_ARROW_CURSOR;
2348         }
2349
2350         return result;
2351 }
2352
2353 void TrackCanvas::draw_keyframe_reticle()
2354 {
2355         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2356         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2357
2358         int current_op = mwindow->session->current_operation, dragging = 0;
2359         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2360                 if( current_op == auto_operations[i] ) dragging = 1;
2361         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2362
2363         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2364                 mwindow->session->drag_auto->autos->autoidx : -1;
2365
2366         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2367             keyframe_hairline == HAIRLINE_DRAGGING ) {
2368                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2369                 return;
2370         }
2371
2372         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2373             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2374                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2375                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2376                         Automation *automation = track->automation;
2377                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2378                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2379                                 // automation visible
2380                                 Autos *autos = automation->autos[i];
2381                                 if( !autos ) continue;
2382                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2383                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2384                                      auto_keyframe = auto_keyframe->next ) {
2385                                         draw_hairline(auto_keyframe, BLUE, show);
2386                                 }
2387                         }
2388                 }
2389
2390                 if( dragging )
2391                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2392         }
2393 }
2394
2395 void TrackCanvas::draw_auto(Auto *current,
2396         int x,
2397         int y,
2398         int center_pixel,
2399         int zoom_track)
2400 {
2401         int x1, y1, x2, y2;
2402
2403         x1 = x - HANDLE_W / 2;
2404         x2 = x + HANDLE_W / 2;
2405         y1 = center_pixel + y - HANDLE_W / 2;
2406         y2 = center_pixel + y + HANDLE_W / 2;
2407
2408         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2409         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2410
2411         draw_box(x1, y1, x2 - x1, y2 - y1);
2412 }
2413
2414
2415 // This draws lines for bezier in & out controls
2416 void TrackCanvas::draw_cropped_line(int x1,
2417         int y1,
2418         int x2,
2419         int y2,
2420         int min_y,
2421         int max_y)
2422 {
2423
2424
2425 // Don't care about x since it is clipped by the window.
2426 // Put y coords in ascending order
2427         if(y2 < y1) {
2428                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2429                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2430         }
2431
2432
2433
2434         double slope = (double)(x2 - x1) / (y2 - y1);
2435 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2436         if(y1 < min_y) {
2437                 x1 = (int)(x1 + (min_y - y1) * slope);
2438                 y1 = min_y;
2439         }
2440         else if(y1 >= max_y) {
2441                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2442                 y1 = max_y - 1;
2443         }
2444
2445         if(y2 >= max_y) {
2446                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2447                 y2 = max_y - 1;
2448         }
2449         else if(y2 < min_y) {
2450                 x2 = (int)(x2 + (min_y - y2) * slope);
2451                 y1 = min_y;
2452         }
2453
2454
2455 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2456         if( y1 >= min_y && y1 < max_y &&
2457             y2 >= min_y && y2 < max_y )
2458                 draw_line(x1, y1, x2, y2);
2459 }
2460
2461
2462 void TrackCanvas::draw_floatauto(FloatAuto *current,
2463         int x,
2464         int y,
2465         int in_x,
2466         int in_y,
2467         int out_x,
2468         int out_y,
2469         int center_pixel,
2470         int zoom_track,
2471         int color)
2472 {
2473         int x1 = x - HANDLE_W / 2; // Center
2474         int x2 = x + HANDLE_W / 2;
2475         int y1 = center_pixel + y - HANDLE_H / 2;
2476         int y2 = center_pixel + y + HANDLE_H / 2;
2477         int ymin = center_pixel - zoom_track / 2;
2478         int ymax = center_pixel + zoom_track / 2;
2479         CLAMP(y1, ymin, ymax);
2480         CLAMP(y2, ymin, ymax);
2481
2482         if( y2-1 > y1 ) {
2483                 if( current->curve_mode == FloatAuto::LINEAR ) {
2484                         draw_box(x1, y1, x2 - x1, y2 - y1);
2485                 }
2486                 else {
2487                         ArrayList<int> polygon_x;
2488                         ArrayList<int> polygon_y;
2489                         polygon_x.append((x1 + x2) / 2 + 1);
2490                         polygon_y.append(y1 + 1);
2491                         polygon_x.append(x2 + 1);
2492                         polygon_y.append((y1 + y2) / 2 + 1);
2493                         polygon_x.append((x1 + x2) / 2 + 1);
2494                         polygon_y.append(y2 + 1);
2495                         polygon_x.append(x1 + 1);
2496                         polygon_y.append((y1 + y2) / 2 + 1);
2497                         fill_polygon(&polygon_x, &polygon_y);
2498                 }
2499         }
2500
2501 // show bezier control points (only) if this
2502 // floatauto doesn't adjust it's tangents automatically
2503         if(current->curve_mode != FloatAuto::FREE &&
2504            current->curve_mode != FloatAuto::TFREE)
2505                 return;
2506
2507         if(in_x != x)
2508                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2509         if(out_x != x)
2510                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2511 }
2512
2513 inline int quantize(float f) { return (int)floor(f + 0.5); }
2514
2515 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2516         int x, int y, int cp_x, int cp_y, int center_pixel,
2517         int zoom_track, int color)
2518 // draw the tangent and a handle for given bézier ctrl point
2519 {
2520         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2521
2522         float slope = (float)(cp_y - y)/(cp_x - x);
2523         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2524         if(slope != 0)
2525                 cp_x = x + quantize((cp_y - y) / slope);
2526
2527         y    += center_pixel;
2528         cp_y += center_pixel;
2529
2530         // drawing the tangent as a dashed line...
2531         int const dash = HANDLE_W;
2532         int const gap  = HANDLE_W / 2;
2533         float sx = 3 * (cp_x - x) / 4.;
2534         float ex = 0;
2535
2536         // q is the x displacement for a unit line of slope
2537         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2538
2539         float dist = 1/q * sx;
2540         if( dist > dash )
2541                 ex = sx - q * dash;
2542
2543         set_color(color);
2544         do {
2545                 float sy = slope * sx, ey = slope * ex;
2546                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2547                 sx = ex - q * gap;
2548                 ex = sx - q * dash;
2549         } while(q*ex > 0);
2550
2551         if(handle_visible)
2552         {
2553                 int r = HANDLE_W / 2;
2554                 int cp_x1 = cp_x - r;
2555                 int cp_y1 = cp_y - r;
2556                 set_color(BLACK);
2557                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2558                 set_color(color);
2559                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2560         }
2561 }
2562
2563
2564 int TrackCanvas::test_auto(Auto *current,
2565         int x, int y, int center_pixel, int zoom_track,
2566         int cursor_x, int cursor_y, int buttonpress)
2567 {
2568         int x1, y1, x2, y2;
2569         int result = 0;
2570
2571         x1 = x - HANDLE_W / 2;
2572         x2 = x + HANDLE_W / 2;
2573         y1 = center_pixel + y - HANDLE_H / 2;
2574         y2 = center_pixel + y + HANDLE_H / 2;
2575         int ymin = center_pixel - zoom_track / 2;
2576         int ymax = center_pixel + zoom_track / 2;
2577         CLAMP(y1, ymin, ymax);
2578         CLAMP(y2, ymin, ymax);
2579
2580         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2581         {
2582                 if(buttonpress && buttonpress != 3)
2583                 {
2584                         mwindow->session->drag_auto = current;
2585                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2586                         // Toggle Autos don't respond to vertical zoom, they always show up
2587                         // with "on" == 100% == line on top
2588                         mwindow->session->drag_start_position = current->position;
2589                         mwindow->session->drag_origin_x = cursor_x;
2590                         mwindow->session->drag_origin_y = cursor_y;
2591                 }
2592                 result = 1;
2593         }
2594
2595         if(buttonpress && buttonpress != 3 && result)
2596         {
2597 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2598                 mwindow->undo->update_undo_before();
2599         }
2600
2601         return result;
2602 }
2603
2604 // some Helpers for test_floatauto(..)
2605 // and for dragging the tangents/ctrl points
2606 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2607         float cursor_x, float cursor_y)
2608 {
2609 // Control point switched off?
2610         if( x0 == ctrl_x ) return 0.0;
2611         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2612         double x = cursor_x-x0, y = cursor_y-y0;
2613 // wrong side of ctrl handle
2614         if( x*x1 < 0 ) return 0.0;
2615 // outside handle radius
2616         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2617         double xx1 = x1*x1, yy1 = y1*y1;
2618         double xx = x*x, yy = y*y;
2619 // distance squared from cursor to cursor projected to line from ctrl to handle
2620 //   along a line perpendicular to line from ctrl to handle (closest approach)
2621 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2622         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2623         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2624 }
2625
2626
2627 inline
2628 float levered_position(float position, float ref_pos)
2629 {
2630         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2631                 return 0.0;
2632         return ref_pos / position;
2633 }
2634
2635
2636 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2637 // transforms automation value into current display coords,
2638 // dependant on current automation display range for the given kind of automation
2639 {
2640         if(!mwindow || !mwindow->edl) return 0;
2641         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2642         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2643         float automation_range = automation_max - automation_min;
2644         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2645                 return 0;
2646         return (auto_value - automation_min) / automation_range;
2647 }
2648
2649
2650
2651 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2652         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2653         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2654 {
2655         int result = 0;
2656
2657         int x1 = x - HANDLE_W / 2;
2658         int x2 = x + HANDLE_W / 2;
2659         int y1 = center_pixel + y - HANDLE_W / 2;
2660         int y2 = center_pixel + y + HANDLE_W / 2;
2661         int ymin = center_pixel - zoom_track / 2;
2662         int ymax = center_pixel + zoom_track / 2;
2663         CLAMP(y1, ymin, ymax);
2664         CLAMP(y2, ymin, ymax);
2665
2666         int in_x1 = in_x - HANDLE_W / 2;
2667         int in_x2 = in_x + HANDLE_W / 2;
2668         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2669         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2670         CLAMP(in_y1, ymin, ymax);
2671         CLAMP(in_y2, ymin, ymax);
2672
2673         int out_x1 = out_x - HANDLE_W / 2;
2674         int out_x2 = out_x + HANDLE_W / 2;
2675         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2676         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2677         CLAMP(out_y1, ymin, ymax);
2678         CLAMP(out_y2, ymin, ymax);
2679
2680
2681 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2682 // buttonpress could be the start of a drag operation
2683 #define INIT_DRAG(POS,VAL) \
2684                 mwindow->session->drag_auto = current;      \
2685                 mwindow->session->drag_origin_x = cursor_x;  \
2686                 mwindow->session->drag_origin_y = cursor_y;   \
2687                 mwindow->session->drag_start_position = (POS); \
2688                 mwindow->session->drag_start_percentage = (VAL);
2689
2690 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2691
2692
2693 // without modifier we are manipulating the automation node
2694 // with ALT it's about dragging only the value of the node
2695 // with SHIFT the value snaps to the value of neighbouring nodes
2696 // CTRL indicates we are rather manipulating the tangent(s) of the node
2697
2698         if(!ctrl_down())
2699         {
2700                 if( WITHIN(x1,x2,y1,y2))
2701                 {       // cursor hits node
2702                         result = 1;
2703
2704                         if(buttonpress && (buttonpress != 3))
2705                         {
2706                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2707                                 mwindow->session->drag_handle = 0;
2708                 }       }
2709         }
2710         else // ctrl_down()
2711         {
2712                 if( WITHIN(x1,x2,y1,y2))
2713                 {
2714                         result = 1;
2715                         if(buttonpress && (buttonpress != 3))
2716                         {
2717                                 // could be ctrl-click or ctrl-drag
2718                                 // click would cycle through tangent modes
2719                                 ((FloatAuto*)current)->toggle_curve_mode();
2720
2721                                 // drag will start dragging the tangent, if applicable
2722                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2723                                 mwindow->session->drag_handle = 0;
2724                         }
2725                 }
2726
2727                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2728
2729 // Test in control
2730                 if( in_x != x && current->position > 0 &&
2731                         (FloatAuto::FREE == current->curve_mode ||
2732                          FloatAuto::TFREE == current->curve_mode))
2733 // act on in control handle only if
2734 // tangent is significant and is editable (not automatically choosen)
2735                 {
2736                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2737  // either cursor in ctrl-point handle or cursor on tangent line
2738                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2739                                 result = 1;
2740                                 if(buttonpress && (buttonpress != 3)) {
2741                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2742 //                                      lever = 1.0;
2743                                         mwindow->session->drag_handle = 1;
2744                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2745                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2746                                                   value_to_percentage(new_invalue, autogrouptype))
2747                                 }
2748                         }
2749                 }
2750
2751 // Test out control
2752                 if(out_x != x &&
2753                         (FloatAuto::FREE == current->curve_mode ||
2754                          FloatAuto::TFREE == current->curve_mode))
2755 // act on out control only if tangent is significant and is editable
2756                 {
2757                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2758                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2759                                 result = 1;
2760                                 if(buttonpress && (buttonpress != 3)) {
2761                                         if(lever == 0.0) lever=1.0;
2762 //                                      lever = 1.0;
2763                                         mwindow->session->drag_handle = 2;
2764                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2765                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2766                                                   value_to_percentage(new_outvalue, autogrouptype))
2767                                 }
2768                         }
2769                 }
2770         } // end ctrl_down()
2771
2772 #undef WITHIN
2773 #undef INIT_DRAG
2774
2775 // if(buttonpress)
2776 // 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",
2777 // mwindow->session->drag_handle,
2778 // ctrl_down(),
2779 // cursor_x,
2780 // cursor_y,
2781 // x1, x2, y1, y2);
2782         if(buttonpress && (buttonpress != 3) && result)
2783         {
2784                 mwindow->undo->update_undo_before();
2785         }
2786
2787         return result;
2788 }
2789
2790
2791 // Get the float value & y for position x on the canvas
2792 #define X_TO_FLOATLINE(x) \
2793         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2794         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2795 /* Call by reference fails for some reason here */ \
2796         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2797         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2798         double position = unit_start + x * zoom_units; \
2799         double value = 0; \
2800         if(position2 > position1) \
2801         { \
2802                 value = value1 + \
2803                         (value2 - value1) * \
2804                         (position - position1) / \
2805                         (position2 - position1); \
2806         } \
2807         else \
2808         { \
2809                 value = value1; \
2810         } \
2811         AUTOMATIONCLAMPS(value, autogrouptype); \
2812         int y = center_pixel + \
2813                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2814
2815
2816 void TrackCanvas::draw_floatline(int center_pixel,
2817         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2818         double unit_start, double zoom_units, double yscale,
2819         int x1, int y1, int x2, int y2,
2820         int color, int autogrouptype)
2821 {
2822 // Solve bezier equation for either every pixel or a certain large number of
2823 // points.
2824
2825 // Not using slope intercept
2826         x1 = MAX(0, x1);
2827         int prev_y = y1 + center_pixel;
2828
2829
2830 // Call by reference fails for some reason here
2831         FloatAuto *previous1 = previous, *next1 = next;
2832         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2833         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2834         float automation_range = automation_max - automation_min;
2835
2836         for(int x = x1; x < x2; x++)
2837         {
2838 // Interpolate value between frames
2839                 X_TO_FLOATLINE(x)
2840
2841                 if(/* x > x1 && */
2842                         y >= center_pixel - yscale / 2 &&
2843                         y < center_pixel + yscale / 2 - 1)
2844                 {
2845 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2846 // y,
2847 // (int)(center_pixel - yscale / 2),
2848 // (int)(center_pixel + yscale / 2 - 1));
2849
2850 //printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
2851                         draw_line(x - 1, prev_y  , x, y   );
2852                 }
2853                 prev_y = y;
2854         }
2855 }
2856
2857
2858
2859
2860
2861 int TrackCanvas::test_floatline(int center_pixel,
2862                 FloatAutos *autos,
2863                 double unit_start,
2864                 double zoom_units,
2865                 double yscale,
2866                 int x1,
2867                 int x2,
2868                 int cursor_x,
2869                 int cursor_y,
2870                 int buttonpress,
2871                 int autogrouptype)
2872 {
2873         int result = 0;
2874
2875
2876         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2877         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2878         float automation_range = automation_max - automation_min;
2879         FloatAuto *previous1 = 0, *next1 = 0;
2880         X_TO_FLOATLINE(cursor_x);
2881
2882         if(cursor_x >= x1 &&
2883                 cursor_x < x2 &&
2884                 cursor_y >= y - HANDLE_W / 2 &&
2885                 cursor_y < y + HANDLE_W / 2 &&
2886                 !ctrl_down())
2887         {
2888                 result = 1;
2889
2890 // Menu
2891                 if(buttonpress == 3)
2892                 {
2893                 }
2894                 else
2895 // Create keyframe
2896                 if(buttonpress)
2897                 {
2898                         Auto *current;
2899                         mwindow->undo->update_undo_before();
2900                         double position = autos->track->from_units(position1);
2901                         position = mwindow->edl->align_to_frame(position, 0);
2902                         int64_t new_position = autos->track->to_units(position,0);
2903                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2904                         ((FloatAuto*)current)->set_value(value);
2905                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2906                         mwindow->session->drag_start_position = current->position;
2907                         mwindow->session->drag_origin_x = cursor_x;
2908                         mwindow->session->drag_origin_y = cursor_y;
2909                         mwindow->session->drag_handle = 0;
2910                 }
2911         }
2912
2913
2914         return result;
2915 }
2916
2917
2918 void TrackCanvas::fill_ganged_autos(int all, float change, Track *skip, FloatAuto *fauto)
2919 {
2920         if( !skip->gang ) return;
2921 // Handles the special case of modifying a fadeauto
2922 // when there are ganged faders on several tracks
2923         double position = skip->from_units(fauto->position);
2924         int autoidx = fauto->autos->autoidx;
2925
2926         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2927                 if( (all || current->data_type == skip->data_type) &&
2928                     current->gang && current->record && current != skip ) {
2929                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2930                         float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2931                         float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2932                         int64_t current_position = current->to_units(position, 1);
2933                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
2934                         if( keyframe ) {
2935 // keyframe exists, just change it
2936                                 float value = keyframe->get_value();
2937                                 float new_value = value + change;
2938                                 CLAMP(new_value, auto_min, auto_max);
2939                                 keyframe->adjust_to_new_coordinates(current_position, new_value);
2940                         }
2941                         else {
2942 // create keyframe on neighbouring track at the point in time given by fauto
2943                                 FloatAuto *previous = 0, *next = 0;
2944                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2945                                 float new_value = value + change;
2946                                 CLAMP(new_value, auto_min, auto_max);
2947                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2948                                 keyframe->set_value(new_value);
2949                         }
2950                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2951                 }
2952         }
2953 }
2954
2955 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
2956 {
2957         double position = skip->from_units(fauto->position);
2958 // Move the gangs
2959         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2960                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2961                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2962                 float new_value = keyframe->get_value() + change;
2963                 CLAMP(new_value,
2964                       mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2965                       mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2966                 keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2967         }
2968 }
2969
2970 void TrackCanvas::clear_ganged_autos()
2971 {
2972 // remove the gangs
2973         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2974                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2975                 keyframe->autos->remove_nonsequential(keyframe);
2976         }
2977         mwindow->session->drag_auto_gang->remove_all();
2978 }
2979
2980
2981 void TrackCanvas::draw_toggleline(int center_pixel,
2982         int x1,
2983         int y1,
2984         int x2,
2985         int y2)
2986 {
2987         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2988
2989         if(y2 != y1)
2990         {
2991                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2992         }
2993 }
2994
2995 int TrackCanvas::test_toggleline(Autos *autos,
2996         int center_pixel,
2997         int x1,
2998         int y1,
2999         int x2,
3000         int y2,
3001         int cursor_x,
3002         int cursor_y,
3003         int buttonpress)
3004 {
3005         int result = 0;
3006         if(cursor_x >= x1 && cursor_x < x2)
3007         {
3008                 int miny = center_pixel + y1 - HANDLE_W / 2;
3009                 int maxy = center_pixel + y1 + HANDLE_W / 2;
3010                 if(cursor_y >= miny && cursor_y < maxy)
3011                 {
3012                         result = 1;
3013
3014 // Menu
3015                         if(buttonpress == 3)
3016                         {
3017                         }
3018                         else
3019 // Insert keyframe
3020                         if(buttonpress)
3021                         {
3022                                 Auto *current;
3023                                 double position = (double)(cursor_x +
3024                                                 mwindow->edl->local_session->view_start[pane->number]) *
3025                                         mwindow->edl->local_session->zoom_sample /
3026                                         mwindow->edl->session->sample_rate;
3027                                 int64_t unit_position = autos->track->to_units(position, 0);
3028                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
3029
3030                                 mwindow->undo->update_undo_before();
3031
3032                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
3033                                 ((IntAuto*)current)->value = new_value;
3034                                 // Toggle Autos don't respond to vertical zoom, they always show up
3035                                 // with "on" == 100% == line on top
3036                                 mwindow->session->drag_start_percentage = (float)new_value;
3037                                 mwindow->session->drag_start_position = current->position;
3038                                 mwindow->session->drag_origin_x = cursor_x;
3039                                 mwindow->session->drag_origin_y = cursor_y;
3040                         }
3041                 }
3042         };
3043
3044         return result;
3045 }
3046
3047 void TrackCanvas::calculate_viewport(Track *track,
3048         double &view_start,   // Seconds
3049         double &unit_start,
3050         double &view_end,     // Seconds
3051         double &unit_end,
3052         double &yscale,
3053         int &center_pixel,
3054         double &zoom_sample,
3055         double &zoom_units)
3056 {
3057
3058         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
3059                 mwindow->edl->local_session->zoom_sample /
3060                 mwindow->edl->session->sample_rate;
3061         unit_start = track->to_doubleunits(view_start);
3062         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
3063                 get_w()) *
3064                 mwindow->edl->local_session->zoom_sample /
3065                 mwindow->edl->session->sample_rate;
3066         unit_end = track->to_doubleunits(view_end);
3067
3068         int y = track->y_pixel
3069                         - mwindow->edl->local_session->track_start[pane->number];
3070         int has_titles = track->show_titles();
3071         int has_assets = track->show_assets();
3072         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
3073         double asset_h = resource_h();
3074         double title_h = mwindow->theme->title_h;
3075         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
3076         double dy = has_titles ?
3077                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2) :
3078                 ( has_assets ? asset_h/2 : 0) ;
3079         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
3080         yscale = ys;
3081         center_pixel = y + dy;
3082
3083         zoom_sample = mwindow->edl->local_session->zoom_sample;
3084         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
3085 }
3086
3087 float TrackCanvas::percentage_to_value(float percentage,
3088         int is_toggle,
3089         Auto *reference,
3090         int autogrouptype)
3091 {
3092         float result;
3093         if(is_toggle)
3094         {
3095                 if(percentage > 0.5)
3096                         result = 1;
3097                 else
3098                         result = 0;
3099         }
3100         else
3101         {
3102                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3103                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3104                 float automation_range = automation_max - automation_min;
3105
3106                 result = percentage * automation_range + automation_min;
3107                 if(reference)
3108                 {
3109                         FloatAuto *ptr = (FloatAuto*)reference;
3110                         result -= ptr->get_value();
3111                 }
3112 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
3113         }
3114         return result;
3115 }
3116
3117
3118 void TrackCanvas::calculate_auto_position(double *x, double *y,
3119         double *in_x, double *in_y, double *out_x, double *out_y,
3120         Auto *current, double unit_start, double zoom_units, double yscale,
3121         int autogrouptype)
3122 {
3123         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3124         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3125         float automation_range = automation_max - automation_min;
3126         FloatAuto *ptr = (FloatAuto*)current;
3127         *x = (double)(ptr->position - unit_start) / zoom_units;
3128         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
3129
3130         if(in_x) {
3131 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
3132                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
3133         }
3134
3135         if(in_y) {
3136                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
3137                                 automation_min) / automation_range - 0.5) * -yscale;
3138         }
3139
3140         if(out_x) {
3141 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
3142                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
3143         }
3144
3145         if(out_y) {
3146                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
3147                                  automation_min) / automation_range - 0.5) * -yscale;
3148         }
3149 }
3150
3151
3152 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
3153                 int draw, int buttonpress, int x_offset, int y_offset, int color,
3154                 Auto* &auto_instance, int autogrouptype)
3155 {
3156         int result = 0;
3157         int center_pixel, draw_auto;
3158         double view_start, unit_start;
3159         double view_end, unit_end, yscale;
3160         double zoom_sample, zoom_units;
3161         double in_x2, in_y2, out_x2, out_y2;
3162         double slope;
3163         //int skip = 0;
3164
3165         auto_instance = 0;
3166
3167         if(draw) set_color(color);
3168
3169         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3170                         yscale, center_pixel, zoom_sample, zoom_units);
3171
3172 // Get first auto before start
3173         Auto *current = 0, *previous = 0;
3174
3175         for( current = autos->last;
3176                 current && current->position >= unit_start;
3177                 current = PREVIOUS ) ;
3178
3179         Auto *first_auto = current ? current :
3180                  autos->first ? autos->first : autos->default_auto;
3181
3182         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
3183         if( first_auto ) {
3184                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3185                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
3186         }
3187         if( current )
3188                 current = NEXT;
3189         else {
3190                 current = autos->first;
3191                 ax = 0;
3192         }
3193
3194         do {
3195                 //skip = 0;
3196                 draw_auto = 1;
3197
3198                 if(current) {
3199                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
3200                                 current, unit_start, zoom_units, yscale, autogrouptype);
3201                 }
3202                 else {
3203                         ax2 = get_w();
3204                         ay2 = ay;
3205                         //skip = 1;
3206                 }
3207
3208                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3209
3210                 if(ax2 > get_w()) {
3211                         draw_auto = 0;
3212                         ax2 = get_w();
3213                         ay2 = ay + slope * (get_w() - ax);
3214                 }
3215
3216                 if(ax < 0) {
3217                         ay = ay + slope * (0 - ax);
3218                         ax = 0;
3219                 }
3220
3221 // Draw or test handle
3222                 if( current && !result && current != autos->default_auto ) {
3223                         if( !draw && track->record ) {
3224                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
3225                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
3226                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3227                                         buttonpress, autogrouptype);
3228                                 if( result )
3229                                         auto_instance = current;
3230                         }
3231                         if( draw && draw_auto ) {
3232                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
3233                                         (int)in_x2 + x_offset, (int)in_y2,
3234                                         (int)out_x2 + x_offset, (int)out_y2,
3235                                         (int)center_pixel + y_offset, (int)yscale, color);
3236                         }
3237                 }
3238
3239 // Draw or test joining line
3240                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
3241                         result = test_floatline(center_pixel,
3242                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3243 // Exclude auto coverage from the end of the line.  The auto overlaps
3244                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3245                                 buttonpress, autogrouptype);
3246                 }
3247                 if( draw )
3248                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3249                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3250                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3251                                 color, autogrouptype);
3252
3253                 if( current ) {
3254                         previous = current;
3255                         current = NEXT;
3256                 }
3257
3258                 ax = ax2;  ay = ay2;
3259         } while( current && current->position <= unit_end && !result );
3260
3261         if( ax < get_w() && !result ) {
3262                 ax2 = get_w();  ay2 = ay;
3263                 if(!draw && track->record /* && buttonpress != 3 */ ) {
3264                         result = test_floatline(center_pixel,
3265                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3266                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3267                                 buttonpress, autogrouptype);
3268                 }
3269                 if( draw )
3270                         draw_floatline(center_pixel,
3271                                 (FloatAuto*)previous, (FloatAuto*)current,
3272                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3273                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3274                                 color, autogrouptype);
3275         }
3276
3277         return result;
3278 }
3279
3280
3281 int TrackCanvas::do_int_autos(Track *track,
3282                 Autos *autos,
3283                 int cursor_x,
3284                 int cursor_y,
3285                 int draw,
3286                 int buttonpress,
3287                 int x_offset,
3288                 int y_offset,
3289                 int color,
3290                 Auto *&auto_instance)
3291 {
3292         int result = 0;
3293         double view_start;
3294         double unit_start;
3295         double view_end;
3296         double unit_end;
3297         double yscale;
3298         int center_pixel;
3299         double zoom_sample;
3300         double zoom_units;
3301         double ax, ay, ax2, ay2;
3302
3303         auto_instance = 0;
3304
3305         if(draw) set_color(color);
3306
3307         calculate_viewport(track,
3308                 view_start,
3309                 unit_start,
3310                 view_end,
3311                 unit_end,
3312                 yscale,
3313                 center_pixel,
3314                 zoom_sample,
3315                 zoom_units);
3316
3317
3318         double high = -yscale * 0.8 / 2;
3319         double low = yscale * 0.8 / 2;
3320
3321 // Get first auto before start
3322         Auto *current;
3323         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3324                 ;
3325
3326         if(current)
3327         {
3328                 ax = 0;
3329                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3330                 current = NEXT;
3331         }
3332         else
3333         {
3334                 current = autos->first ? autos->first : autos->default_auto;
3335                 if(current)
3336                 {
3337                         ax = 0;
3338                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3339                 }
3340                 else
3341                 {
3342                         ax = 0;
3343                         ay = yscale;
3344                 }
3345         }
3346
3347         do
3348         {
3349                 if(current)
3350                 {
3351                         ax2 = (double)(current->position - unit_start) / zoom_units;
3352                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3353                 }
3354                 else
3355                 {
3356                         ax2 = get_w();
3357                         ay2 = ay;
3358                 }
3359
3360                 if(ax2 > get_w()) ax2 = get_w();
3361
3362                 if(current && !result)
3363                 {
3364                         if(current != autos->default_auto)
3365                         {
3366                                 if(!draw)
3367                                 {
3368                                         if(track->record)
3369                                         {
3370                                                 result = test_auto(current,
3371                                                         (int)ax2,
3372                                                         (int)ay2,
3373                                                         (int)center_pixel,
3374                                                         (int)yscale,
3375                                                         cursor_x,
3376                                                         cursor_y,
3377                                                         buttonpress);
3378                                                 if (result)
3379                                                         auto_instance = current;
3380                                         }
3381                                 }
3382                                 else
3383                                         draw_auto(current,
3384                                                 (int)ax2 + x_offset,
3385                                                 (int)ay2 + y_offset,
3386                                                 (int)center_pixel,
3387                                                 (int)yscale);
3388                         }
3389
3390                         current = NEXT;
3391                 }
3392
3393                 if(!draw)
3394                 {
3395                         if(!result)
3396                         {
3397                                 if(track->record /* && buttonpress != 3 */)
3398                                 {
3399                                         result = test_toggleline(autos,
3400                                                 center_pixel,
3401                                                 (int)ax,
3402                                                 (int)ay,
3403                                                 (int)ax2,
3404                                                 (int)ay2,
3405                                                 cursor_x,
3406                                                 cursor_y,
3407                                                 buttonpress);
3408                                 }
3409                         }
3410                 }
3411                 else
3412                         draw_toggleline(center_pixel + y_offset,
3413                                 (int)ax,
3414                                 (int)ay,
3415                                 (int)ax2,
3416                                 (int)ay2);
3417
3418                 ax = ax2;
3419                 ay = ay2;
3420         }while(current && current->position <= unit_end && !result);
3421
3422         if(ax < get_w() && !result)
3423         {
3424                 ax2 = get_w();
3425                 ay2 = ay;
3426                 if(!draw)
3427                 {
3428                         if(track->record /* && buttonpress != 3 */)
3429                         {
3430                                 result = test_toggleline(autos,
3431                                         center_pixel,
3432                                         (int)ax,
3433                                         (int)ay,
3434                                         (int)ax2,
3435                                         (int)ay2,
3436                                         cursor_x,
3437                                         cursor_y,
3438                                         buttonpress);
3439                         }
3440                 }
3441                 else
3442                         draw_toggleline(center_pixel + y_offset,
3443                                 (int)ax,
3444                                 (int)ay,
3445                                 (int)ax2,
3446                                 (int)ay2);
3447         }
3448         return result;
3449 }
3450
3451 int TrackCanvas::do_autos(Track *track,
3452                 Autos *autos,
3453                 int cursor_x,
3454                 int cursor_y,
3455                 int draw,
3456                 int buttonpress,
3457                 BC_Pixmap *pixmap,
3458                 Auto * &auto_instance,
3459                 int &rerender)
3460 {
3461         int result = 0;
3462
3463         double view_start;
3464         double unit_start;
3465         double view_end;
3466         double unit_end;
3467         double yscale;
3468         int center_pixel;
3469         double zoom_sample;
3470         double zoom_units;
3471
3472         calculate_viewport(track,
3473                 view_start,
3474                 unit_start,
3475                 view_end,
3476                 unit_end,
3477                 yscale,
3478                 center_pixel,
3479                 zoom_sample,
3480                 zoom_units);
3481
3482         Auto *current;
3483         auto_instance = 0;
3484
3485         for(current = autos->first; current && !result; current = NEXT)
3486         {
3487                 if(current->position >= unit_start && current->position < unit_end)
3488                 {
3489                         int64_t x, y;
3490                         x = (int64_t)((double)(current->position - unit_start) /
3491                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3492                         y = center_pixel - pixmap->get_h() / 2;
3493
3494                         if(!draw)
3495                         {
3496                                 if(cursor_x >= x && cursor_y >= y &&
3497                                         cursor_x < x + pixmap->get_w() &&
3498                                         cursor_y < y + pixmap->get_h())
3499                                 {
3500                                         result = 1;
3501                                         auto_instance = current;
3502
3503                                         if(buttonpress && (buttonpress != 3))
3504                                         {
3505                                                 mwindow->session->drag_auto = current;
3506                                                 mwindow->session->drag_start_position = current->position;
3507                                                 mwindow->session->drag_origin_x = cursor_x;
3508                                                 mwindow->session->drag_origin_y = cursor_y;
3509
3510                                                 double position = autos->track->from_units(current->position);
3511                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3512                                                         mwindow->edl->local_session->get_selectionend(1)) /
3513                                                         2;
3514
3515                                                 if(!shift_down())
3516                                                 {
3517                                                         mwindow->edl->local_session->set_selectionstart(position);
3518                                                         mwindow->edl->local_session->set_selectionend(position);
3519                                                 }
3520                                                 else
3521                                                 if(position < center)
3522                                                 {
3523                                                         mwindow->edl->local_session->set_selectionstart(position);
3524                                                 }
3525                                                 else
3526                                                         mwindow->edl->local_session->set_selectionend(position);
3527
3528                                                 rerender = 1;
3529                                         }
3530                                 }
3531                         }
3532                         else
3533                                 draw_pixmap(pixmap, x, y);
3534                 }
3535         }
3536
3537
3538         return result;
3539 }
3540
3541 // so this means it is always >0 when keyframe is found
3542 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3543                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3544                 KeyFrame* &keyframe_instance)
3545 {
3546         int result = 0;
3547
3548         double view_start;
3549         double unit_start;
3550         double view_end;
3551         double unit_end;
3552         double yscale;
3553         int center_pixel;
3554         double zoom_sample;
3555         double zoom_units;
3556
3557         if(!track->expand_view) return 0;
3558
3559         calculate_viewport(track,
3560                 view_start,
3561                 unit_start,
3562                 view_end,
3563                 unit_end,
3564                 yscale,
3565                 center_pixel,
3566                 zoom_sample,
3567                 zoom_units);
3568
3569
3570
3571         for(int i = 0; i < track->plugin_set.total && !result; i++)
3572         {
3573                 PluginSet *plugin_set = track->plugin_set.values[i];
3574                 int center_pixel = track->y_pixel -
3575                         mwindow->edl->local_session->track_start[pane->number];
3576                 if( track->show_titles() )
3577                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3578                 if( track->show_assets() )
3579                         center_pixel += resource_h();
3580                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3581
3582                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3583                         plugin && !result;
3584                         plugin = (Plugin*)plugin->next)
3585                 {
3586                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3587                                 keyframe && !result;
3588                                 keyframe = (KeyFrame*)keyframe->next)
3589                         {
3590 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3591                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3592                                 {
3593                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3594                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3595
3596 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3597                                         if(!draw)
3598                                         {
3599                                                 if(cursor_x >= x && cursor_y >= y &&
3600                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3601                                                         cursor_y < y + keyframe_pixmap->get_h())
3602                                                 {
3603                                                         result = 1;
3604                                                         keyframe_plugin = plugin;
3605                                                         keyframe_instance = keyframe;
3606
3607                                                         if(buttonpress)
3608                                                         {
3609                                                                 mwindow->session->drag_auto = keyframe;
3610                                                                 mwindow->session->drag_start_position = keyframe->position;
3611                                                                 mwindow->session->drag_origin_x = cursor_x;
3612                                                                 mwindow->session->drag_origin_y = cursor_y;
3613
3614                                                                 double position = track->from_units(keyframe->position);
3615                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3616                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3617                                                                         2;
3618
3619                                                                 if(!shift_down())
3620                                                                 {
3621                                                                         mwindow->edl->local_session->set_selectionstart(position);
3622                                                                         mwindow->edl->local_session->set_selectionend(position);
3623                                                                 }
3624                                                                 else
3625                                                                 if(position < center)
3626                                                                 {
3627                                                                         mwindow->edl->local_session->set_selectionstart(position);
3628                                                                 }
3629                                                                 else
3630                                                                         mwindow->edl->local_session->set_selectionend(position);
3631                                                         }
3632                                                 }
3633                                         }
3634                                         else
3635                                                 draw_pixmap(keyframe_pixmap,
3636                                                         x,
3637                                                         y);
3638                                 }
3639                         }
3640                 }
3641         }
3642
3643
3644
3645 //      if(buttonpress && buttonpress != 3 && result)
3646 //      {
3647 //              mwindow->undo->update_undo_before();
3648 //      }
3649
3650         return result;
3651 }
3652
3653 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
3654 {
3655         Track *track = auto_keyframe->autos->track;
3656         int autogrouptype = auto_keyframe->autos->autogrouptype;
3657
3658         int center_pixel;
3659         double view_start, unit_start;
3660         double view_end, unit_end, yscale;
3661         double zoom_sample, zoom_units;
3662
3663         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3664                         yscale, center_pixel, zoom_sample, zoom_units);
3665         if( auto_keyframe->position < unit_start ||
3666             auto_keyframe->position >= unit_end )
3667                 return 0;
3668
3669         double ax = 0, ay = 0;
3670         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3671                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3672
3673         set_color(color);
3674         draw_line(ax, 0, ax, get_h());
3675
3676         char text[BCSTRLEN];
3677         if( show ) {
3678                 if( auto_keyframe->is_floatauto() ) {
3679                         FloatAuto *float_auto = (FloatAuto *)auto_keyframe;
3680                         sprintf(text, "%0.2f", float_auto->get_value());
3681                 }
3682                 else if( auto_keyframe->is_intauto() ) {
3683                         IntAuto *int_auto = (IntAuto *)auto_keyframe;
3684                         sprintf(text, "%d", int_auto->value);
3685                 }
3686                 else
3687                         show = 0;
3688         }
3689         if( show ) {
3690                 int font = MEDIUMFONT;
3691                 int tw = get_text_width(font, text)  + TOOLTIP_MARGIN * 2;
3692                 int th = get_text_height(font, text) + TOOLTIP_MARGIN * 2;
3693                 set_color(get_resources()->tooltip_bg_color);
3694                 ax += HANDLE_W/2;
3695                 ay += center_pixel + HANDLE_W/2;
3696                 draw_box(ax, ay, tw, th);
3697                 set_color(BLACK);
3698                 draw_rectangle(ax, ay, tw, th);
3699                 set_font(font);
3700                 ax += TOOLTIP_MARGIN;
3701                 ay += TOOLTIP_MARGIN + get_text_ascent(font);
3702                 draw_text(ax, ay, text);
3703         }
3704         return 0;
3705 }
3706
3707 void TrackCanvas::draw_overlays()
3708 {
3709         int new_cursor, update_cursor, rerender;
3710
3711 // Move background pixmap to foreground pixmap
3712         draw_pixmap(background_pixmap,
3713                 0,
3714                 0,
3715                 get_w(),
3716                 get_h(),
3717                 0,
3718                 0);
3719
3720 // In/Out points
3721         draw_inout_points();
3722
3723 // Transitions
3724         draw_transitions();
3725
3726 // Plugins
3727         draw_plugins();
3728         draw_hard_edges();
3729
3730 // Loop points
3731         draw_loop_points();
3732         draw_brender_range();
3733
3734 // Highlighted areas
3735         draw_highlighting();
3736
3737 // Automation
3738         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3739
3740 // Selection cursor
3741         if(pane->cursor) pane->cursor->restore(1);
3742
3743 // Handle dragging
3744         draw_drag_handle();
3745
3746 // Playback cursor
3747         draw_playback_cursor();
3748
3749         draw_keyframe_reticle();
3750
3751         show_window(0);
3752 }
3753
3754 int TrackCanvas::activate()
3755 {
3756         if(!active)
3757         {
3758 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3759 //BC_Signals::dump_stack();
3760                 get_top_level()->deactivate();
3761                 active = 1;
3762                 set_active_subwindow(this);
3763                 pane->cursor->activate();
3764                 gui->focused_pane = pane->number;
3765         }
3766         return 0;
3767 }
3768
3769 int TrackCanvas::deactivate()
3770 {
3771         if(active)
3772         {
3773                 active = 0;
3774                 pane->cursor->deactivate();
3775         }
3776         return 0;
3777 }
3778
3779
3780 void TrackCanvas::update_drag_handle()
3781 {
3782         double new_position;
3783         int cursor_x = get_cursor_x();
3784
3785         new_position =
3786                 (double)(cursor_x +
3787                 mwindow->edl->local_session->view_start[pane->number]) *
3788                 mwindow->edl->local_session->zoom_sample /
3789                 mwindow->edl->session->sample_rate;
3790
3791         new_position =
3792                 mwindow->edl->align_to_frame(new_position, 0);
3793
3794         if( ctrl_down() && alt_down() ) {
3795 #define snapper(v) do { \
3796         double pos = (v); \
3797         if( pos < 0 ) break; \
3798         double dist = fabs(new_position - pos); \
3799         if( dist >= snap_min ) break; \
3800         snap_position = pos;  snap_min = dist; \
3801 } while(0)
3802                 double snap_position = new_position;
3803                 double snap_min = DBL_MAX;
3804                 if( mwindow->edl->local_session->inpoint_valid() )
3805                         snapper(mwindow->edl->local_session->get_inpoint());
3806                 if( mwindow->edl->local_session->outpoint_valid() )
3807                         snapper(mwindow->edl->local_session->get_outpoint());
3808                 snapper(mwindow->edl->prev_edit(new_position));
3809                 snapper(mwindow->edl->next_edit(new_position));
3810                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3811                 if( prev_label ) snapper(prev_label->position);
3812                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3813                 if( next_label ) snapper(next_label->position);
3814                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3815                         mwindow->edl->local_session->zoom_sample -
3816                         mwindow->edl->local_session->view_start[pane->number];
3817                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3818                         snapped = 1;
3819                         new_position = snap_position;
3820                 }
3821 #undef snapper
3822         }
3823
3824         if(new_position != mwindow->session->drag_position)
3825         {
3826                 mwindow->session->drag_position = new_position;
3827                 gui->mainclock->update(new_position);
3828                 timebar_position = new_position;
3829                 gui->update_timebar(0);
3830
3831                 EDL *edl = new EDL;
3832                 edl->create_objects();
3833                 edl->copy_all(mwindow->edl);
3834                 MainSession *session = mwindow->session;
3835                 int handle_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3836                 edl->modify_edithandles(session->drag_start,
3837                         session->drag_position, session->drag_handle, handle_mode,
3838                         edl->session->labels_follow_edits,
3839                         edl->session->plugins_follow_edits,
3840                         edl->session->autos_follow_edits,
3841                         !session->drag_edit ? 0 : session->drag_edit->group_id);
3842
3843                 double position = -1;
3844                 int show_edge = !session->drag_handle ? 1 : 2;
3845                 switch( handle_mode ) {
3846                 case MOVE_RIPPLE:
3847                 case MOVE_EDGE:
3848                         position = session->drag_handle ?
3849                                 session->drag_position : session->drag_start;
3850                         show_edge = 3 - show_edge;
3851                         break;
3852                 case MOVE_ROLL:
3853                 case MOVE_SLIDE:
3854                         position = session->drag_position;
3855                         break;
3856                 case MOVE_SLIP:
3857                         position = session->drag_start;
3858                         show_edge = 3 - show_edge;
3859                         break;
3860                 }
3861
3862                 if( position < 0 ) position = 0;
3863                 Track *track = session->drag_handle_track();
3864                 int64_t pos = track->to_units(position, 0);
3865                 render_handle_frame(edl, pos, shift_down() ? 0 : show_edge);
3866                 edl->remove_user();
3867         }
3868 }
3869
3870 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3871 {
3872         int result = 0;
3873         int64_t left = pos-1;
3874         if( left < 0 ) left = 0;
3875         switch( mode ) {
3876         case 0: {
3877                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3878                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3879                 TransportCommand command;
3880                 command.command = CURRENT_FRAME;
3881                 command.get_edl()->copy_all((EDL *)edl);
3882                 command.change_type = CHANGE_ALL;
3883                 command.realtime = 0;
3884                 Preferences *preferences = mwindow->preferences;
3885                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3886                 CICache *video_cache = new CICache(preferences);
3887                 render_engine->set_vcache(video_cache);
3888                 render_engine->arm_command(&command);
3889                 VRender *vrender = render_engine->vrender;
3890                 result = vrender &&
3891                         !vrender->process_buffer(&vlt, left, 0) &&
3892                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3893                 delete render_engine;
3894                 delete video_cache;
3895                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3896                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3897                 int w = canvas->w, h = canvas->h, w2 = w/2, h2 = h/2;
3898                 int lx = 0, ly = h2/2, rx = w2, ry = h2/2;
3899                 BC_WindowBase *window = canvas->get_canvas();
3900                 window->set_color(BLACK);
3901                 window->clear_box(0,0, window->get_w(),window->get_h());
3902                 window->draw_vframe(&vlt, lx,ly, w2,h2, 0,0,vlt.get_w(),vlt.get_h());
3903                 window->draw_vframe(&vrt, rx,ry, w2,h2, 0,0,vrt.get_w(),vrt.get_h());
3904                 window->flash(1);
3905                 mwindow->cwindow->gui->unlock_window();
3906                 break; }
3907         case 1:
3908         case 2: {
3909                 Track *track = mwindow->session->drag_handle_track();
3910                 double position = track->from_units(mode == 1 ? left : pos);
3911                 if( position < 0 ) position = 0;
3912                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3913                 if( playback_engine->is_playing_back )
3914                         playback_engine->stop_playback(1);
3915                 edl->local_session->set_selectionstart(position);
3916                 edl->local_session->set_selectionend(position);
3917                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3918                 break; }
3919         }
3920         return result;
3921 }
3922
3923 int TrackCanvas::update_drag_edit()
3924 {
3925         int result = 0;
3926
3927
3928
3929         return result;
3930 }
3931
3932 int TrackCanvas::get_drag_values(float *percentage,
3933         int64_t *position,
3934         int do_clamp,
3935         int cursor_x,
3936         int cursor_y,
3937         Auto *current)
3938 {
3939         //int x = cursor_x - mwindow->session->drag_origin_x;
3940         //int y = cursor_y - mwindow->session->drag_origin_y;
3941         *percentage = 0;
3942         *position = 0;
3943
3944         if(!current->autos->track->record) return 1;
3945         double view_start;
3946         double unit_start;
3947         double view_end;
3948         double unit_end;
3949         double yscale;
3950         int center_pixel;
3951         double zoom_sample;
3952         double zoom_units;
3953
3954         calculate_viewport(current->autos->track,
3955                 view_start,
3956                 unit_start,
3957                 view_end,
3958                 unit_end,
3959                 yscale,
3960                 center_pixel,
3961                 zoom_sample,
3962                 zoom_units);
3963
3964         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3965                 yscale +
3966                 mwindow->session->drag_start_percentage;
3967         if(do_clamp) CLAMP(*percentage, 0, 1);
3968
3969         *position = Units::to_int64(zoom_units *
3970                 (cursor_x - mwindow->session->drag_origin_x) +
3971                 mwindow->session->drag_start_position + 0.5);
3972
3973         if((do_clamp) && *position < 0) *position = 0;
3974         return 0;
3975 }
3976
3977
3978 #define UPDATE_DRAG_HEAD(do_clamp) \
3979         int result = 0, center_pixel; \
3980         if(!current->autos->track->record) return 0; \
3981         double view_start, unit_start, view_end, unit_end; \
3982         double yscale, zoom_sample, zoom_units; \
3983  \
3984         calculate_viewport(current->autos->track,  \
3985                 view_start, unit_start, view_end, unit_end, \
3986                 yscale, center_pixel, zoom_sample, zoom_units); \
3987  \
3988         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3989                 yscale +  mwindow->session->drag_start_percentage; \
3990         if(do_clamp) CLAMP(percentage, 0, 1); \
3991  \
3992         int64_t position = Units::to_int64(zoom_units * \
3993                 (cursor_x - mwindow->session->drag_origin_x) + \
3994                 mwindow->session->drag_start_position); \
3995         if((do_clamp) && position < 0) position = 0;
3996
3997
3998 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3999 {
4000         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
4001
4002         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
4003         int x = cursor_x - mwindow->session->drag_origin_x;
4004         int y = cursor_y - mwindow->session->drag_origin_y;
4005         float value, old_value;
4006
4007         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
4008 // not really editing the node, rather start editing the curve
4009 // tangent is editable and drag movement is significant
4010                 if( (FloatAuto::FREE == current->curve_mode ||
4011                      FloatAuto::TFREE==current->curve_mode) &&
4012                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
4013                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
4014         }
4015
4016         switch(mwindow->session->drag_handle) {
4017         case 0: // Center
4018 // Snap to nearby values
4019                 old_value = current->get_value();
4020                 if(shift_down()) {
4021                         double value1, value2, distance1=-1, distance2=-1;
4022
4023                         if(current->previous) {
4024                                 int autogrouptype = current->previous->autos->autogrouptype;
4025                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4026                                 value1 = ((FloatAuto*)current->previous)->get_value();
4027                                 distance1 = fabs(value - value1);
4028                                 current->set_value(value1);
4029                         }
4030
4031                         if(current->next) {
4032                                 int autogrouptype = current->next->autos->autogrouptype;
4033                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4034                                 value2 = ((FloatAuto*)current->next)->get_value();
4035                                 distance2 = fabs(value - value2);
4036                                 if(!current->previous || distance2 < distance1) {
4037                                         current->set_value(value2);
4038                                 }
4039                         }
4040
4041                         if(!current->previous && !current->next) {
4042                                 current->set_value( ((FloatAutos*)current->autos)->default_);
4043                         }
4044                         value = current->get_value();
4045                 }
4046                 else {
4047                         int autogrouptype = current->autos->autogrouptype;
4048                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
4049                 }
4050
4051                 if(alt_down() && !shift_down())
4052 // ALT constrains movement: fixed position, only changing the value
4053                         position = mwindow->session->drag_start_position;
4054
4055                 if(value != old_value || position != current->position) {
4056                         result = 1;
4057                         float change = value - old_value;
4058                         current->adjust_to_new_coordinates(position, value);
4059                         update_ganged_autos(change, current->autos->track, current);
4060                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4061                         show_message(current, color, ", %.2f", current->get_value());
4062                 }
4063                 break;
4064
4065 // In control
4066         case 1: {
4067                 int autogrouptype = current->autos->autogrouptype;
4068                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4069                 if(value != current->get_control_in_value())
4070                 {
4071                         result = 1;
4072                         // note: (position,value) need not be at the location of the ctrl point,
4073                         // but could be somewhere in between on the curve (or even outward or
4074                         // on the opposit side). We set the new control point such as
4075                         // to point the curve through (position,value)
4076                         current->set_control_in_value(
4077                                 value * levered_position(position - current->position,
4078                                                          current->get_control_in_position()));
4079                         update_ganged_autos(0, current->autos->track, current);
4080                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4081                         show_message(current, color, ", %.2f", current->get_control_in_value());
4082                 }
4083                 break; }
4084
4085 // Out control
4086         case 2: {
4087                 int autogrouptype = current->autos->autogrouptype;
4088                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4089                 if(value != current->get_control_out_value()) {
4090                         result = 1;
4091                         current->set_control_out_value(
4092                                 value * levered_position(position - current->position,
4093                                                          current->get_control_out_position()));
4094                         update_ganged_autos(0, current->autos->track, current);
4095                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4096                         show_message(current, color, ", %.2f", current->get_control_out_value());
4097                 }
4098                 break; }
4099         }
4100
4101         return result;
4102 }
4103
4104 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4105 {
4106         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4107
4108         UPDATE_DRAG_HEAD(1);
4109         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4110
4111         if(value != current->value || position != current->position)
4112         {
4113                 result = 1;
4114                 current->value = value;
4115                 current->position = position;
4116                 show_message(current, -1, ", %d", current->value);
4117         }
4118
4119         return result;
4120 }
4121
4122 // Autos which can't change value through dragging.
4123
4124 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4125 {
4126         Auto *current = (Auto*)mwindow->session->drag_auto;
4127
4128         UPDATE_DRAG_HEAD(1)
4129         if(position != current->position)
4130         {
4131                 result = 1;
4132                 current->position = position;
4133                 show_message(current, -1, "");
4134
4135                 double position_f = current->autos->track->from_units(current->position);
4136                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4137                         mwindow->edl->local_session->get_selectionend(1)) /
4138                         2;
4139                 if(!shift_down())
4140                 {
4141                         mwindow->edl->local_session->set_selectionstart(position_f);
4142                         mwindow->edl->local_session->set_selectionend(position_f);
4143                 }
4144                 else
4145                 if(position_f < center_f)
4146                 {
4147                         mwindow->edl->local_session->set_selectionstart(position_f);
4148                 }
4149                 else
4150                         mwindow->edl->local_session->set_selectionend(position_f);
4151         }
4152
4153
4154         return result;
4155 }
4156
4157 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4158 {
4159         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4160
4161         UPDATE_DRAG_HEAD(1)
4162         if(position != current->position)
4163         {
4164 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4165                 Track *track = current->autos->track;
4166                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4167                 PluginSet *pluginset;
4168                 Plugin *plugin = 0;
4169 // figure out the correct pluginset & correct plugin
4170                 int found = 0;
4171                 for(int i = 0; i < track->plugin_set.total; i++)
4172                 {
4173                         pluginset = track->plugin_set.values[i];
4174                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4175                         {
4176                                 KeyFrames *keyframes = plugin->keyframes;
4177                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4178                                         currentkeyframe;
4179                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4180                                 {
4181                                         if (currentkeyframe == current)
4182                                         {
4183                                                 found = 1;
4184                                                 break;
4185                                         }
4186
4187                                 }
4188                                 if (found) break;
4189                         }
4190                         if (found) break;
4191                 }
4192
4193                 mwindow->session->plugin_highlighted = plugin;
4194                 mwindow->session->track_highlighted = track;
4195                 result = 1;
4196                 current->position = position;
4197                 show_message(current, -1, "");
4198
4199                 double position_f = current->autos->track->from_units(current->position);
4200                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4201                         mwindow->edl->local_session->get_selectionend(1)) /
4202                         2;
4203                 if(!shift_down())
4204                 {
4205                         mwindow->edl->local_session->set_selectionstart(position_f);
4206                         mwindow->edl->local_session->set_selectionend(position_f);
4207                 }
4208                 else
4209                 if(position_f < center_f)
4210                 {
4211                         mwindow->edl->local_session->set_selectionstart(position_f);
4212                 }
4213                 else
4214                         mwindow->edl->local_session->set_selectionend(position_f);
4215         }
4216
4217
4218         return result;
4219 }
4220
4221 void TrackCanvas::update_drag_caption()
4222 {
4223         switch(mwindow->session->current_operation)
4224         {
4225                 case DRAG_FADE:
4226
4227                         break;
4228         }
4229 }
4230
4231
4232
4233 int TrackCanvas::cursor_update(int in_motion)
4234 {
4235         int result = 0;
4236         int cursor_x = 0;
4237         int cursor_y = 0;
4238         int update_clock = 0;
4239         int update_zoom = 0;
4240         int update_scroll = 0;
4241         int update_overlay = 0;
4242         int update_cursor = 0;
4243         int rerender = 0;
4244         double position = 0.;
4245 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4246
4247 // Default cursor
4248         int new_cursor =
4249                 arrow_mode() ? ARROW_CURSOR :
4250                 ibeam_mode() ? IBEAM_CURSOR : 0;
4251
4252         switch(mwindow->session->current_operation)
4253         {
4254                 case DRAG_EDITHANDLE1:
4255 // Outside threshold.  Upgrade status
4256                         if(active)
4257                         {
4258                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4259                                 {
4260                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
4261                                         update_overlay = 1;
4262                                 }
4263                         }
4264                         break;
4265
4266                 case DRAG_EDITHANDLE2:
4267                         if(active)
4268                         {
4269                                 update_drag_handle();
4270                                 update_overlay = 1;
4271                         }
4272                         break;
4273
4274                 case DRAG_PLUGINHANDLE1:
4275                         if(active)
4276                         {
4277                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4278                                 {
4279                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4280                                         update_overlay = 1;
4281                                 }
4282                         }
4283                         break;
4284
4285                 case DRAG_PLUGINHANDLE2:
4286                         if(active)
4287                         {
4288                                 update_drag_handle();
4289                                 update_overlay = 1;
4290                         }
4291                         break;
4292
4293 // Rubber band curves
4294                 case DRAG_FADE:
4295                 case DRAG_SPEED:
4296                 case DRAG_CZOOM:
4297                 case DRAG_PZOOM:
4298                 case DRAG_CAMERA_X:
4299                 case DRAG_CAMERA_Y:
4300                 case DRAG_CAMERA_Z:
4301                 case DRAG_PROJECTOR_X:
4302                 case DRAG_PROJECTOR_Y:
4303                 case DRAG_PROJECTOR_Z:
4304                         if(active) rerender = update_overlay =
4305                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4306                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4307                                 mwindow->speed_after(!in_motion ? 1 : 0);
4308                         break;
4309
4310                 case DRAG_PLAY:
4311                         if(active) rerender = update_overlay =
4312                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4313                         break;
4314
4315                 case DRAG_MUTE:
4316                         if(active) rerender = update_overlay =
4317                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4318                         break;
4319
4320 // Keyframe icons are sticky
4321                 case DRAG_PAN_PRE:
4322                 case DRAG_MASK_PRE:
4323                 case DRAG_MODE_PRE:
4324                 case DRAG_PLUGINKEY_PRE:
4325                         if(active) {
4326                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4327                                         mwindow->session->current_operation++;
4328                                         update_overlay = 1;
4329
4330                                         mwindow->undo->update_undo_before();
4331                                 }
4332                         }
4333                         break;
4334
4335                 case DRAG_PAN:
4336                 case DRAG_MASK:
4337                 case DRAG_MODE:
4338                         if(active) rerender = update_overlay =
4339                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4340                         break;
4341
4342                 case DRAG_PLUGINKEY:
4343                         if(active) rerender = update_overlay =
4344                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4345                         break;
4346
4347                 case SELECT_REGION:
4348                         if(active) {
4349                                 cursor_x = get_cursor_x();
4350                                 cursor_y = get_cursor_y();
4351                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4352                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4353
4354                                 position = mwindow->edl->align_to_frame(position, 0);
4355                                 position = MAX(position, 0);
4356
4357                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4358                                 double end = mwindow->edl->local_session->get_selectionend(1);
4359                                 if(position < selection_midpoint) {
4360                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4361                                         mwindow->edl->local_session->set_selectionstart(position);
4362                                 }
4363                                 else {
4364                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4365                                         mwindow->edl->local_session->set_selectionend(position);
4366                                 }
4367         // Que the CWindow
4368                                 gui->unlock_window();
4369                                 int dir =
4370                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4371                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4372                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4373                                 gui->lock_window("TrackCanvas::cursor_update 1");
4374         // Update the faders
4375                                 mwindow->update_plugin_guis();
4376                                 gui->update_patchbay();
4377
4378                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4379
4380                                 gui->hide_cursor(0);
4381                                 gui->draw_cursor(1);
4382                                 gui->update_timebar(0);
4383                                 gui->flash_canvas(1);
4384                                 result = 1;
4385                                 update_clock = 1;
4386                                 update_zoom = 1;
4387                                 update_scroll = 1;
4388                         }
4389                         break;
4390
4391                 case DROP_TARGETING:
4392                         new_cursor = GRABBED_CURSOR;
4393                         result = 1;
4394                         break;
4395
4396                 default:
4397                         if(is_event_win() && cursor_inside()) {
4398 // Update clocks
4399                                 cursor_x = get_cursor_x();
4400                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4401                                 position = mwindow->edl->align_to_frame(position, 0);
4402                                 update_clock = 1;
4403 // set all timebars
4404                                 for(int i = 0; i < TOTAL_PANES; i++)
4405                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4406
4407 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4408                                 gui->update_timebar(0);
4409 // Update cursor
4410                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4411                                                 0, new_cursor, update_cursor)) break;
4412                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4413                                         0, 0, new_cursor, update_cursor, rerender)) break;
4414                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4415                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4416 // Plugin boundaries
4417                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4418                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4419                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4420                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4421                         }
4422                         break;
4423         }
4424
4425 //printf("TrackCanvas::cursor_update 1\n");
4426         if(update_cursor && new_cursor != get_cursor())
4427         {
4428                 set_cursor(new_cursor, 0, 1);
4429         }
4430
4431 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4432         if(rerender && render_timer->get_difference() > 0.25 ) {
4433                 render_timer->update();
4434                 mwindow->restart_brender();
4435                 mwindow->sync_parameters(CHANGE_PARAMS);
4436                 mwindow->update_plugin_guis();
4437                 gui->unlock_window();
4438                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4439                 gui->lock_window("TrackCanvas::cursor_update 2");
4440         }
4441         if(rerender) {
4442 // Update faders
4443                 gui->update_patchbay();
4444         }
4445
4446
4447         if(update_clock) {
4448                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4449                         gui->mainclock->update(position);
4450         }
4451
4452         if(update_zoom) {
4453                 gui->zoombar->update();
4454         }
4455
4456         if(update_scroll) {
4457                 if(!drag_scroll &&
4458                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4459                         start_dragscroll();
4460                 else
4461                 if(drag_scroll &&
4462                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4463                         stop_dragscroll();
4464         }
4465
4466         if(update_overlay) {
4467                 gui->draw_overlays(1);
4468         }
4469
4470 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4471         return result;
4472 }
4473
4474 int TrackCanvas::cursor_motion_event()
4475 {
4476         return cursor_update(1);
4477 }
4478
4479 void TrackCanvas::start_dragscroll()
4480 {
4481         if(!drag_scroll) {
4482                 drag_scroll = 1;
4483                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4484 //printf("TrackCanvas::start_dragscroll 1\n");
4485         }
4486 }
4487
4488 void TrackCanvas::stop_dragscroll()
4489 {
4490         if(drag_scroll) {
4491                 drag_scroll = 0;
4492                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4493 //printf("TrackCanvas::stop_dragscroll 1\n");
4494         }
4495 }
4496
4497 int TrackCanvas::repeat_event(int64_t duration)
4498 {
4499         if(!drag_scroll) return 0;
4500         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4501
4502         int sample_movement = 0;
4503         int track_movement = 0;
4504         int64_t x_distance = 0;
4505         int64_t y_distance = 0;
4506         double position = 0;
4507         int result = 0;
4508
4509         switch(mwindow->session->current_operation) {
4510                 case SELECT_REGION:
4511 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4512                 if(get_cursor_x() > get_w()) {
4513                                 x_distance = get_cursor_x() - get_w();
4514                                 sample_movement = 1;
4515                 }
4516                 else if(get_cursor_x() < 0) {
4517                         x_distance = get_cursor_x();
4518                         sample_movement = 1;
4519                 }
4520
4521                 if(get_cursor_y() > get_h()) {
4522                         y_distance = get_cursor_y() - get_h();
4523                         track_movement = 1;
4524                 }
4525                 else if(get_cursor_y() < 0) {
4526                         y_distance = get_cursor_y();
4527                         track_movement = 1;
4528                 }
4529                 result = 1;
4530                 break;
4531         }
4532
4533         if(sample_movement) {
4534                 position = (double)(get_cursor_x() +
4535                         mwindow->edl->local_session->view_start[pane->number] +
4536                         x_distance) *
4537                         mwindow->edl->local_session->zoom_sample /
4538                         mwindow->edl->session->sample_rate;
4539                 position = mwindow->edl->align_to_frame(position, 0);
4540                 position = MAX(position, 0);
4541
4542 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4543                 switch(mwindow->session->current_operation) {
4544                 case SELECT_REGION:
4545                         if(position < selection_midpoint) {
4546                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4547                                 mwindow->edl->local_session->set_selectionstart(position);
4548 // Que the CWindow
4549                                 gui->unlock_window();
4550                                 mwindow->cwindow->update(1, 0, 0);
4551                                 gui->lock_window("TrackCanvas::repeat_event");
4552 // Update the faders
4553                                 mwindow->update_plugin_guis();
4554                                 gui->update_patchbay();
4555                         }
4556                         else {
4557                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4558                                 mwindow->edl->local_session->set_selectionend(position);
4559 // Don't que the CWindow
4560                         }
4561                         break;
4562                 }
4563
4564                 mwindow->samplemovement(
4565                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4566                         pane->number);
4567         }
4568
4569         if(track_movement) {
4570                 mwindow->trackmovement(y_distance, pane->number);
4571         }
4572
4573         return result;
4574 }
4575
4576 int TrackCanvas::button_release_event()
4577 {
4578         int redraw = -1, update_overlay = 0;
4579         int result = 0, load_flags = 0;
4580
4581 // printf("TrackCanvas::button_release_event %d\n",
4582 // mwindow->session->current_operation);
4583         if(active) {
4584                 switch(mwindow->session->current_operation) {
4585                 case DRAG_EDITHANDLE2:
4586                         mwindow->session->current_operation = NO_OPERATION;
4587                         drag_scroll = 0;
4588                         result = 1;
4589
4590                         end_edithandle_selection();
4591                         break;
4592
4593                 case DRAG_EDITHANDLE1:
4594                         mwindow->session->current_operation = NO_OPERATION;
4595                         drag_scroll = 0;
4596                         result = 1;
4597                         break;
4598
4599                 case DRAG_PLUGINHANDLE2:
4600                         mwindow->session->current_operation = NO_OPERATION;
4601                         drag_scroll = 0;
4602                         result = 1;
4603
4604                         end_pluginhandle_selection();
4605                         break;
4606
4607                 case DRAG_PLUGINHANDLE1:
4608                         mwindow->session->current_operation = NO_OPERATION;
4609                         drag_scroll = 0;
4610                         result = 1;
4611                         break;
4612
4613                 case DRAG_SPEED:
4614                         redraw = FORCE_REDRAW;
4615                         load_flags |= LOAD_EDITS;
4616                 case DRAG_FADE:
4617 // delete the drag_auto_gang first and remove out of order keys
4618                         clear_ganged_autos();
4619                 case DRAG_CZOOM:
4620                 case DRAG_PZOOM:
4621                 case DRAG_PLAY:
4622                 case DRAG_MUTE:
4623                 case DRAG_MASK:
4624                 case DRAG_MODE:
4625                 case DRAG_PAN:
4626                 case DRAG_CAMERA_X:
4627                 case DRAG_CAMERA_Y:
4628                 case DRAG_CAMERA_Z:
4629                 case DRAG_PROJECTOR_X:
4630                 case DRAG_PROJECTOR_Y:
4631                 case DRAG_PROJECTOR_Z:
4632                 case DRAG_PLUGINKEY:
4633                         load_flags |= LOAD_AUTOMATION;
4634                         mwindow->session->current_operation = NO_OPERATION;
4635                         mwindow->session->drag_handle = 0;
4636 // Remove any out-of-order keyframe
4637                         if(mwindow->session->drag_auto) {
4638                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4639                                                 mwindow->session->drag_auto);
4640 //                              mwindow->session->drag_auto->autos->optimize();
4641                                 update_overlay = 1;
4642                         }
4643
4644                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4645                         result = 1;
4646                         break;
4647
4648                 case DRAG_EDIT:
4649                 case DRAG_GROUP:
4650                 case DRAG_AEFFECT_COPY:
4651                 case DRAG_VEFFECT_COPY:
4652 // Trap in drag stop
4653                         break;
4654
4655                 case DROP_TARGETING: {
4656                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4657                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4658                         drag_cursor_motion(cursor_x, cursor_y,
4659                                 &track, &edit, &pluginset, &plugin);
4660                         double position =
4661                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4662                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4663                         mwindow->session->current_operation = NO_OPERATION;
4664                         result = 1;
4665                         break; }
4666
4667                 case GROUP_TOGGLE: {
4668                         Edit *edit = mwindow->session->drag_edit;
4669                         if( edit ) {
4670                                 if( shift_down() && edit->is_selected ) {
4671                                         if( edit->group_id > 0 ) {
4672                                                 mwindow->edl->tracks->clear_selected_edits();
4673                                                 mwindow->edl->tracks->del_group(edit->group_id);
4674                                         }
4675                                         else {
4676                                                 int id = mwindow->session->group_number++;
4677                                                 mwindow->edl->tracks->new_group(id);
4678                                         }
4679                                         redraw = 0;
4680                                 }
4681                                 else {
4682                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4683                                                 mwindow->edl->tracks->clear_selected_edits();
4684                                         edit->set_selected(-1);
4685                                 }
4686                         }
4687                         mwindow->session->current_operation = NO_OPERATION;
4688                         update_overlay = 1;
4689                         result = 1;
4690                         drag_scroll = 0;
4691                         break; }
4692
4693                 default:
4694                         if( mwindow->session->current_operation ) {
4695 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4696 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4697 //                              }
4698
4699                                 mwindow->session->current_operation = NO_OPERATION;
4700                                 drag_scroll = 0;
4701                                 //result = 0;
4702                                 break;
4703                         }
4704                         break;
4705                 }
4706         }
4707
4708         if( mwindow->edl->local_session->zoombar_showautocolor >= 0 )
4709                 mwindow->gui->zoombar->update_autozoom(-1);
4710
4711         if (result)
4712                 cursor_update(0);
4713
4714         if(update_overlay) {
4715                 gui->draw_overlays(1);
4716         }
4717         if(redraw >= 0) {
4718                 gui->draw_canvas(redraw, 0);
4719                 gui->flash_canvas(1);
4720         }
4721         return result;
4722 }
4723
4724 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4725         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4726 {
4727         Edit *edit_result = 0;
4728         int handle_result = -1;
4729         int result = 0;
4730
4731         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4732                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4733                         int64_t edit_x, edit_y, edit_w, edit_h;
4734                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4735
4736                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4737                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4738                                 if( cursor_x < edit_x + HANDLE_W ) {
4739                                         edit_result = edit;
4740                                         handle_result = 0;
4741                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4742                                             track->show_assets() ) {
4743                                                 new_cursor = DOWNLEFT_RESIZE;
4744                                                 if( button_press == LEFT_BUTTON )
4745                                                         result = -1;
4746                                         }
4747                                         else
4748                                                 result = 1;
4749                                 }
4750                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4751                                         edit_result = edit;
4752                                         handle_result = 1;
4753                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4754                                             track->show_assets() ) {
4755                                                 new_cursor = DOWNRIGHT_RESIZE;
4756                                                 if( button_press == LEFT_BUTTON )
4757                                                         result = -1;
4758                                         }
4759                                         else
4760                                                 result = 1;
4761                                 }
4762                         }
4763                 }
4764         }
4765
4766         if( result > 0 ) {
4767                 int group_id = edit_result->group_id;
4768                 if( group_id > 0 ) {
4769                         Track *track = edit_result->track;
4770                         Edit *left = 0, *right = 0;
4771                         double start = DBL_MAX, end = DBL_MIN;
4772                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4773                                 if( edit->group_id != group_id ) continue;
4774                                 double edit_start = edit->track->from_units(edit->startproject);
4775                                 if( edit_start < start ) { start = edit_start;  left = edit; }
4776                                 double edit_end = edit->track->from_units(edit->startproject+edit->length);
4777                                 if( edit_end > end ) { end = edit_end;  right = edit; }
4778                         }
4779                         Edit *edit = !handle_result ? left : right;
4780                         if( edit != edit_result )
4781                                 result = 0;
4782                 }
4783         }
4784
4785         update_cursor = 1;
4786         if( result > 0 ) {
4787                 double position = 0;
4788                 if( handle_result == 0 ) {
4789                         position = edit_result->track->from_units(edit_result->startproject);
4790                         new_cursor = LEFT_CURSOR;
4791                 }
4792                 else if( handle_result == 1 ) {
4793                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4794                         new_cursor = RIGHT_CURSOR;
4795                 }
4796
4797 // Reposition cursor
4798                 if( button_press ) {
4799                         mwindow->session->drag_edit = edit_result;
4800                         mwindow->session->drag_handle = handle_result;
4801                         mwindow->session->drag_button = get_buttonpress() - 1;
4802                         mwindow->session->drag_position = position;
4803                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4804                         mwindow->session->drag_origin_x = get_cursor_x();
4805                         mwindow->session->drag_origin_y = get_cursor_y();
4806                         mwindow->session->drag_start = position;
4807
4808                         rerender = start_selection(position);
4809                         update_overlay = 1;
4810                 }
4811         }
4812         else if( result < 0 && !edit_result->silence() ) {
4813                 mwindow->undo->update_undo_before();
4814                 if( !shift_down() ) {
4815                         if( handle_result == 0 )
4816                                 edit_result->hard_left = !edit_result->hard_left;
4817                         else if( handle_result == 1 )
4818                                 edit_result->hard_right = !edit_result->hard_right;
4819                 }
4820                 else {
4821                         int status = handle_result == 0 ? edit_result->hard_left :
4822                                      handle_result == 1 ? edit_result->hard_right : 0;
4823                         int new_status = !status;
4824                         int64_t edit_edge = edit_result->startproject;
4825                         if( handle_result == 1 ) edit_edge += edit_result->length;
4826                         double edge_position = edit_result->track->from_units(edit_edge);
4827                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4828                                 int64_t track_position = track->to_units(edge_position, 1);
4829                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4830                                 if( left_edit ) {
4831                                         int64_t left_edge = left_edit->startproject;
4832                                         double left_position = track->from_units(left_edge);
4833                                         if( EQUIV(edge_position, left_position) ) {
4834                                                 left_edit->hard_left = new_status;
4835                                                 if( left_edit->previous )
4836                                                         left_edit->previous->hard_right = new_status;
4837                                         }
4838                                 }
4839                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4840                                 if( right_edit ) {
4841                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4842                                         double right_position = track->from_units(right_edge);
4843                                         if( EQUIV(edge_position, right_position) ) {
4844                                                 right_edit->hard_right = new_status;
4845                                                 if( right_edit->next )
4846                                                         right_edit->next->hard_left = new_status;
4847                                         }
4848                                 }
4849                         }
4850                 }
4851                 rerender = update_overlay = 1;
4852                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4853                 result = 1;
4854         }
4855
4856         return result;
4857 }
4858
4859 int TrackCanvas::do_plugin_handles(int cursor_x,
4860         int cursor_y,
4861         int button_press,
4862         int &rerender,
4863         int &update_overlay,
4864         int &new_cursor,
4865         int &update_cursor)
4866 {
4867         Plugin *plugin_result = 0;
4868         int handle_result = 0;
4869         int result = 0;
4870
4871         for(Track *track = mwindow->edl->tracks->first;
4872                 track && !result;
4873                 track = track->next) {
4874                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4875                         PluginSet *plugin_set = track->plugin_set.values[i];
4876                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4877                                 plugin && !result;
4878                                 plugin = (Plugin*)plugin->next) {
4879                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4880                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4881
4882                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4883                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4884                                         if(cursor_x < plugin_x + HANDLE_W) {
4885                                                 plugin_result = plugin;
4886                                                 handle_result = 0;
4887                                                 result = 1;
4888                                         }
4889                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4890                                                 plugin_result = plugin;
4891                                                 handle_result = 1;
4892                                                 result = 1;
4893                                         }
4894                                 }
4895                         }
4896
4897                         if(result && shift_down())
4898                                 mwindow->session->trim_edits = plugin_set;
4899                 }
4900         }
4901
4902         update_cursor = 1;
4903         if(result) {
4904                 double position = 0;
4905                 if(handle_result == 0) {
4906                         position = plugin_result->track->from_units(plugin_result->startproject);
4907                         new_cursor = LEFT_CURSOR;
4908                 }
4909                 else if(handle_result == 1) {
4910                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4911                         new_cursor = RIGHT_CURSOR;
4912                 }
4913
4914                 if(button_press) {
4915                         mwindow->session->drag_plugin = plugin_result;
4916                         mwindow->session->drag_handle = handle_result;
4917                         mwindow->session->drag_button = get_buttonpress() - 1;
4918                         mwindow->session->drag_position = position;
4919                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4920                         mwindow->session->drag_origin_x = get_cursor_x();
4921                         mwindow->session->drag_origin_y = get_cursor_y();
4922                         mwindow->session->drag_start = position;
4923
4924                         rerender = start_selection(position);
4925                         update_overlay = 1;
4926                 }
4927         }
4928
4929         return result;
4930 }
4931
4932
4933 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4934 {
4935         int result = 0;
4936
4937         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4938         drag_cursor_motion(cursor_x, cursor_y,
4939                 &track, &edit, &pluginset, &plugin);
4940
4941         if( button_press && track ) {
4942                 switch( get_buttonpress() ) {
4943                 case RIGHT_BUTTON: {
4944                         double position =
4945                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4946                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
4947                         mwindow->session->current_operation = NO_OPERATION;
4948                         result = 1;
4949                         break; }
4950                 case MIDDLE_BUTTON:
4951                         set_cursor(GRABBED_CURSOR, 0, 1);
4952                         mwindow->session->current_operation = DROP_TARGETING;
4953                         result = 1;
4954                         break;
4955                 }
4956         }
4957
4958         return result;
4959 }
4960
4961 int TrackCanvas::arrow_mode()
4962 {
4963         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
4964 }
4965 int TrackCanvas::ibeam_mode()
4966 {
4967         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
4968 }
4969
4970 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4971         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4972 {
4973         int result = 0;
4974
4975         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4976                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4977                         int64_t edit_x, edit_y, edit_w, edit_h;
4978                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4979
4980 // Cursor inside a track
4981 // Cursor inside an edit
4982                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4983                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4984                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
4985                                         if( get_double_click() ) {
4986                                                 mwindow->edl->tracks->clear_selected_edits();
4987                                                 mwindow->edl->tracks->select_affected_edits(
4988                                                         edit->track->from_units(edit->startproject),
4989                                                         edit->track, 1);
4990                                                 double start = edit->track->from_units(edit->startproject);
4991                                                 start = mwindow->edl->align_to_frame(start, 0);
4992                                                 mwindow->edl->local_session->set_selectionstart(start);
4993                                                 double end = edit->track->from_units(edit->startproject+edit->length);
4994                                                 end = mwindow->edl->align_to_frame(end, 0);
4995                                                 mwindow->edl->local_session->set_selectionend(end);
4996                                                 result = 1; // Select edit duration or select_region
4997                                         }
4998                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
4999                                                 mwindow->session->drag_edit = edit;
5000                                                 mwindow->session->current_operation = GROUP_TOGGLE;
5001                                                 result = 1;
5002                                         }
5003                                         if( result ) {
5004                                                 rerender = 1;
5005                                                 update_cursor = -1;
5006                                         }
5007                                 }
5008                                 else if( drag_start && track->record ) {
5009                                         mwindow->session->drag_edit = edit;
5010                                         mwindow->session->drag_origin_x = cursor_x;
5011                                         mwindow->session->drag_origin_y = cursor_y;
5012 // Where the drag started, so we know relative position inside the edit later
5013                                         mwindow->session->drag_position =
5014                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
5015                                         drag_start = 0; // if unselected "fast" drag
5016                                         if( !edit->silence() && !edit->is_selected ) {
5017                                                 mwindow->edl->tracks->clear_selected_edits();
5018                                                 if( ibeam_mode() ) {
5019                                                         double start = edit->track->from_units(edit->startproject);
5020                                                         mwindow->edl->local_session->set_selectionstart(start);
5021                                                         mwindow->edl->local_session->set_selectionend(start);
5022                                                         edit->set_selected(1);
5023                                                 }
5024                                                 else
5025                                                         mwindow->edl->tracks->select_affected_edits(
5026                                                                 edit->track->from_units(edit->startproject),
5027                                                                 edit->track, 1);
5028                                                 drag_start = 1;
5029                                         }
5030 // Construct list of all affected edits
5031                                         if( drag_start || ibeam_mode() ) {
5032                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
5033                                                 if( mwindow->session->drag_edits->size() > 0 ) {
5034                                                         mwindow->session->current_operation = DRAG_EDIT;
5035 // Need to create drag window
5036                                                         int cx, cy;  get_abs_cursor(cx, cy);
5037                                                         gui->drag_popup = new BC_DragWindow(gui,
5038                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
5039                                                         result = 1;
5040                                                 }
5041                                                 else {
5042                                                         rerender = start_selection(mwindow->session->drag_position);
5043                                                         mwindow->session->current_operation = SELECT_REGION;
5044                                                         update_cursor = 1;
5045                                                 }
5046                                         }
5047                                         else if( edit->is_selected && arrow_mode() ) {
5048                                                 if( mwindow->session->drag_group )
5049                                                         mwindow->session->drag_group->remove_user();
5050                                                 double start_position = 0;
5051                                                 mwindow->session->drag_group =
5052                                                         mwindow->edl->selected_edits_to_clip(0, &start_position,
5053                                                                 &mwindow->session->drag_group_first_track);
5054                                                 if( mwindow->session->drag_group ) {
5055                                                         mwindow->session->current_operation = DRAG_GROUP;
5056                                                         mwindow->session->drag_group_position = start_position;
5057                                                         mwindow->session->drag_group_edit = edit;
5058                                                         mwindow->session->drag_origin_y = edit_y;
5059                                                         result = 1;
5060                                                 }
5061                                         }
5062                                 }
5063                         }
5064                 }
5065         }
5066         return result;
5067 }
5068
5069
5070 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
5071 {
5072         Track *src = group->tracks->first;
5073         for( Track *track=first_track; track && src; track=track->next ) {
5074                 if( !track->record ) continue;
5075                 if( src->data_type != track->data_type ) return -1;
5076                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
5077                         if( src_edit->silence() ) continue;
5078                         if( edit_intersects(track, src_edit, pos) ) return 0;
5079                 }
5080                 src = src->next;
5081         }
5082         return !src ? 1 : 0;
5083 }
5084
5085 int TrackCanvas::edit_intersects(Track *track, Edit *src_edit, double &pos)
5086 {
5087         if( pos < 0 ) { pos = 0;  return 1; }
5088         int64_t src_start = src_edit->startproject;
5089         int64_t src_end = src_start + src_edit->length;
5090         double new_start = src_edit->track->from_units(src_start) + pos;
5091         double new_end = src_edit->track->from_units(src_end) + pos;
5092         int64_t trk_start = track->to_units(new_start, 1);
5093         int64_t trk_end = track->to_units(new_end, 1);
5094         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
5095                 if( edit->is_selected || edit->silence() ) continue;
5096                 int64_t edit_start = edit->startproject;
5097                 if( edit_start >= trk_end ) continue;
5098                 int64_t edit_end = edit_start + edit->length;
5099                 if( trk_start >= edit_end ) continue;
5100                 int64_t lt_dist = labs(trk_end - edit_start);
5101                 int64_t rt_dist = labs(edit_end - trk_start);
5102                 int64_t position;
5103                 if( lt_dist < rt_dist ) {
5104                         position = edit_start;
5105                         lt_dist = abs(trk_start - edit_start);
5106                         rt_dist = abs(trk_end - edit_start);
5107                         if( lt_dist > rt_dist )
5108                                 position -= src_end;
5109                 }
5110                 else {
5111                         position = edit_end;
5112                         lt_dist = abs(trk_start - edit_end);
5113                         rt_dist = abs(trk_end - edit_end);
5114                         if( lt_dist > rt_dist )
5115                                 position -= src_end;
5116                 }
5117                 pos = edit->track->from_units(position);
5118                 return 1;
5119         }
5120         return 0;
5121 }
5122
5123 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5124 {
5125         return 0;
5126 }
5127
5128 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5129         int button_press, int &redraw, int &rerender)
5130 {
5131         Plugin *plugin = 0;
5132         int result = 0;
5133         int done = 0;
5134         int64_t x, y, w, h;
5135         Track *track = 0;
5136
5137         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5138                 if(!track->expand_view) continue;
5139
5140                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5141                         // first check if plugins are visible at all
5142                         if (!track->expand_view)
5143                                 continue;
5144                         PluginSet *plugin_set = track->plugin_set.values[i];
5145                         for(plugin = (Plugin*)plugin_set->first;
5146                                 plugin && !done;
5147                                 plugin = (Plugin*)plugin->next) {
5148                                 plugin_dimensions(plugin, x, y, w, h);
5149                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5150                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5151                                         if(cursor_x >= x && cursor_x < x + w &&
5152                                                 cursor_y >= y && cursor_y < y + h) {
5153                                                 done = 1;
5154                                                 break;
5155                                         }
5156                                 }
5157                         }
5158                 }
5159         }
5160
5161         if(plugin) {
5162 // Start plugin popup
5163                 if(button_press) {
5164                         if(get_buttonpress() == RIGHT_BUTTON ) {
5165                                 gui->plugin_menu->update(plugin);
5166                                 gui->plugin_menu->activate_menu();
5167                                 result = 1;
5168                         }
5169                         else if (get_double_click() && !drag_start) {
5170 // Select range of plugin on doubleclick over plugin
5171                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5172                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5173                                         plugin->track->from_units(plugin->length));
5174                                 if(mwindow->edl->session->cursor_on_frames) {
5175                                         mwindow->edl->local_session->set_selectionstart(
5176                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5177                                         mwindow->edl->local_session->set_selectionend(
5178                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5179                                 }
5180                                 rerender = 1;
5181                                 redraw = 1;
5182                                 result = 1;
5183                         }
5184                 }
5185                 else
5186 // Move plugin
5187                 if( drag_start && plugin->track->record && !plugin->silence() ) {
5188                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5189                                 if( plugin->track->data_type == TRACK_AUDIO )
5190                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5191                                 else if( plugin->track->data_type == TRACK_VIDEO )
5192                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5193
5194                                 mwindow->session->drag_plugin = plugin;
5195                                 mwindow->session->drag_origin_x = cursor_x;
5196                                 mwindow->session->drag_origin_y = cursor_y;
5197                                 // Where the drag started, so we know relative position inside the edit later
5198                                 mwindow->session->drag_position =
5199                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5200                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5201 // Create picon
5202                                 switch(plugin->plugin_type) {
5203                                 case PLUGIN_STANDALONE: {
5204                                         PluginServer *server =
5205                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5206                                         if( !server ) break;
5207                                         VFrame *frame = server->picon;
5208                                         if(!frame) {
5209                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5210                                                         frame = mwindow->theme->get_image("aeffect_icon");
5211                                                 }
5212                                                 else {
5213                                                         frame = mwindow->theme->get_image("veffect_icon");
5214                                                 }
5215                                         }
5216                                         int cx, cy;
5217                                         get_abs_cursor(cx, cy);
5218                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5219                                                 break; }
5220
5221                                 case PLUGIN_SHAREDPLUGIN:
5222                                 case PLUGIN_SHAREDMODULE: {
5223                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5224                                         int cx, cy;
5225                                         get_abs_cursor(cx, cy);
5226                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5227                                         break; }
5228                                 }
5229
5230                                 result = 1;
5231                         }
5232                 }
5233         }
5234
5235         return result;
5236 }
5237
5238 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5239         int button_press, int &new_cursor, int &update_cursor)
5240 {
5241         Transition *transition = 0;
5242         int result = 0;
5243         int64_t x, y, w, h;
5244
5245
5246         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5247                 if( !track->show_transitions() ) continue;
5248
5249                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5250                         if( edit->transition ) {
5251                                 edit_dimensions(edit, x, y, w, h);
5252                                 get_transition_coords(edit, x, y, w, h);
5253
5254                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5255                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5256                                         if( cursor_x >= x && cursor_x < x + w &&
5257                                                 cursor_y >= y && cursor_y < y + h ) {
5258                                                 transition = edit->transition;
5259                                                 result = 1;
5260                                                 break;
5261                                         }
5262                                 }
5263                         }
5264                 }
5265         }
5266
5267         update_cursor = 1;
5268         if(transition) {
5269                 if(!button_press) {
5270                         new_cursor = UPRIGHT_ARROW_CURSOR;
5271                 }
5272                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5273                         gui->transition_menu->update(transition);
5274                         gui->transition_menu->activate_menu();
5275                 }
5276         }
5277
5278         return result;
5279 }
5280
5281 int TrackCanvas::button_press_event()
5282 {
5283         int result = 0;
5284         int cursor_x, cursor_y;
5285         int new_cursor;
5286
5287         cursor_x = get_cursor_x();
5288         cursor_y = get_cursor_y();
5289         mwindow->session->trim_edits = 0;
5290
5291         if(is_event_win() && cursor_inside()) {
5292 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5293
5294                 result = 1;
5295                 if(!active) {
5296                         activate();
5297                 }
5298
5299                 if( get_buttonpress() == LEFT_BUTTON ) {
5300                         gui->stop_transport("TrackCanvas::button_press_event");
5301                 }
5302
5303                 int update_overlay = 0, update_cursor = 0, rerender = 0, update_message = 0;
5304
5305                 if(get_buttonpress() == WHEEL_UP) {
5306                         if(shift_down())
5307                                 mwindow->expand_sample();
5308                         else if(ctrl_down())
5309                                 mwindow->move_left(get_w()/ 10);
5310                         else
5311                                 mwindow->move_up(get_h() / 10);
5312                 }
5313                 else if(get_buttonpress() == WHEEL_DOWN) {
5314                         if(shift_down())
5315                                 mwindow->zoom_in_sample();
5316                         else if(ctrl_down())
5317                                 mwindow->move_right(get_w() / 10);
5318                         else
5319                                 mwindow->move_down(get_h() / 10);
5320                 }
5321                 else if(get_buttonpress() == 6) {
5322                         if(ctrl_down())
5323                                 mwindow->move_left(get_w());
5324                         else if(alt_down())
5325                                 mwindow->move_left(get_w() / 20);
5326                         else
5327                                 mwindow->move_left(get_w() / 5);
5328                 }
5329                 else if(get_buttonpress() == 7) {
5330                         if(ctrl_down())
5331                                 mwindow->move_right(get_w());
5332                         else if(alt_down())
5333                                 mwindow->move_right(get_w() / 20);
5334                         else
5335                                 mwindow->move_right(get_w() / 5);
5336                 }
5337                 else {
5338                         if( arrow_mode() ) do {
5339 // Test handles and resource boundaries and highlight a track
5340                                 if( do_transitions(cursor_x, cursor_y,
5341                                                 1, new_cursor, update_cursor) ) break;
5342
5343                                 if( do_keyframes(cursor_x, cursor_y,
5344                                         0, get_buttonpress(), new_cursor,
5345                                         update_cursor, rerender) ) break;
5346                                 update_message = 1;
5347 // Test edit boundaries
5348                                 if( do_edit_handles(cursor_x, cursor_y,
5349                                         1, rerender, update_overlay, new_cursor,
5350                                         update_cursor) ) break;
5351 // Test plugin boundaries
5352                                 if( do_plugin_handles(cursor_x, cursor_y,
5353                                         1, rerender, update_overlay, new_cursor,
5354                                         update_cursor) ) break;
5355
5356                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5357                                         update_overlay, rerender, new_cursor,
5358                                         update_cursor) ) break;
5359
5360                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5361                                         update_cursor, rerender) ) break;
5362
5363                                 if( test_resources(cursor_x, cursor_y) ) break;
5364
5365                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5366
5367                                 result = 0;
5368                         } while(0);
5369                         else if( ibeam_mode() ) do {
5370 // Test handles only and select a region
5371                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5372 //printf("TrackCanvas::button_press_event %d\n", position);
5373
5374                                 if( do_transitions(cursor_x, cursor_y,
5375                                                 1, new_cursor, update_cursor)) break;
5376                                 if(do_keyframes(cursor_x, cursor_y,
5377                                         0, get_buttonpress(), new_cursor,
5378                                         update_cursor, rerender)) {
5379                                         update_overlay = 1;
5380                                         break;
5381                                 }
5382                                 update_message = 1;
5383 // Test edit boundaries
5384                                 if( do_edit_handles(cursor_x, cursor_y,
5385                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5386 // Test plugin boundaries
5387                                 if( do_plugin_handles(cursor_x, cursor_y,
5388                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5389
5390                                 if( do_edits(cursor_x, cursor_y,
5391                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5392
5393                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5394
5395                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5396 // Highlight selection
5397                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5398                                 rerender = start_selection(position);
5399                                 mwindow->session->current_operation = SELECT_REGION;
5400                                 update_cursor = 1;
5401                         } while(0);
5402                 }
5403
5404                 if( rerender ) {
5405                         gui->unlock_window();
5406                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5407                         gui->lock_window("TrackCanvas::button_press_event 2");
5408 // Update faders
5409                         mwindow->update_plugin_guis();
5410                         gui->update_patchbay();
5411                 }
5412
5413                 if( update_message )
5414                         gui->default_message();
5415
5416                 if( update_overlay )
5417                         gui->draw_overlays(1);
5418
5419                 if( update_cursor < 0 ) {
5420 // double_click edit
5421                         gui->swindow->update_selection();
5422                         gui->draw_canvas(0, 0);
5423                 }
5424                 if( update_cursor ) {
5425                         gui->update_timebar(0);
5426                         gui->hide_cursor(0);
5427                         gui->show_cursor(1);
5428                         gui->zoombar->update();
5429                         gui->flash_canvas(1);
5430                 }
5431         }
5432
5433         return result;
5434 }
5435
5436 int TrackCanvas::start_selection(double position)
5437 {
5438         int rerender = 0;
5439         position = mwindow->edl->align_to_frame(position, 1);
5440
5441
5442 // Extend a border
5443         if(shift_down())
5444         {
5445                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5446                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5447
5448                 if(position < midpoint)
5449                 {
5450                         mwindow->edl->local_session->set_selectionstart(position);
5451                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5452 // Que the CWindow
5453                         rerender = 1;
5454                 }
5455                 else
5456                 {
5457                         mwindow->edl->local_session->set_selectionend(position);
5458                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5459 // Don't que the CWindow for the end
5460                 }
5461         }
5462         else
5463 // Start a new selection
5464         {
5465 //printf("TrackCanvas::start_selection %f\n", position);
5466                 mwindow->edl->local_session->set_selectionstart(position);
5467                 mwindow->edl->local_session->set_selectionend(position);
5468                 selection_midpoint = position;
5469 // Que the CWindow
5470                 rerender = 1;
5471         }
5472
5473         return rerender;
5474 }
5475
5476 void TrackCanvas::end_edithandle_selection()
5477 {
5478         mwindow->modify_edithandles();
5479 }
5480
5481 void TrackCanvas::end_pluginhandle_selection()
5482 {
5483         mwindow->modify_pluginhandles();
5484 }
5485
5486
5487 double TrackCanvas::time_visible()
5488 {
5489         return (double)get_w() *
5490                 mwindow->edl->local_session->zoom_sample /
5491                 mwindow->edl->session->sample_rate;
5492 }
5493
5494
5495 void TrackCanvas::show_message(Auto *current, int box_color, const char *fmt, ...)
5496 {
5497         char string[BCTEXTLEN];
5498         char *cp = string, *ep = cp + sizeof(string)-1;
5499         if( box_color >= 0 ) {
5500                 cp += snprintf(string, ep-cp, "%-8s ",
5501                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5502         }
5503         char string2[BCTEXTLEN];
5504         Units::totext(string2,
5505                 current->autos->track->from_units(current->position),
5506                 mwindow->edl->session->time_format,
5507                 mwindow->edl->session->sample_rate,
5508                 mwindow->edl->session->frame_rate,
5509                 mwindow->edl->session->frames_per_foot);
5510         cp += snprintf(cp, ep-cp, "%s", string2);
5511         va_list ap;
5512         va_start(ap, fmt);
5513         vsnprintf(cp, ep-cp, fmt, ap);
5514         va_end(ap);
5515         gui->show_message(string, -1, box_color);
5516 }
5517
5518 // Patchbay* TrackCanvas::get_patchbay()
5519 // {
5520 //      if(pane->patchbay) return pane->patchbay;
5521 //      if(gui->total_panes() == 2 &&
5522 //              gui->pane[TOP_LEFT_PANE] &&
5523 //              gui->pane[TOP_RIGHT_PANE])
5524 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5525 //      if(gui->total_panes() == 4)
5526 //      {
5527 //              if(pane->number == TOP_RIGHT_PANE)
5528 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5529 //              else
5530 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5531 //      }
5532 //
5533 //      return 0;
5534 // }
5535
5536