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         if(mode != IGNORE_THREAD)
 783                 gui->resource_thread->reset(pane->number);
 784
 785 // Search every edit
 786         for(Track *current = mwindow->edl->tracks->first;
 787                 current;
 788                 current = NEXT)
 789         {
 790                 if(debug) PRINT_TRACE
 791                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
 792                 {
 793                         if(debug) PRINT_TRACE
 794                         if( current->data_type != TRACK_SUBTITLE )
 795                                 if(!edit->asset && !edit->nested_edl) continue;
 796                         if(indexes_only)
 797                         {
 798                                 if(edit->track->data_type != TRACK_AUDIO) continue;
 799
 800                                 if(edit->nested_edl &&
 801                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
 802
 803                                 if(edit->asset &&
 804                                         strcmp(indexable->path, edit->asset->path)) continue;
 805                         }
 806
 807                         if(debug) PRINT_TRACE
 808
 809                         int64_t edit_x, edit_y, edit_w, edit_h;
 810                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 811
 812 // Edit is visible
 813                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
 814                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
 815                         {
 816                                 int64_t pixmap_x, pixmap_w, pixmap_h;
 817                                 if(debug) PRINT_TRACE
 818
 819 // Search for existing pixmap containing edit
 820                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 821                                 {
 822                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
 823 // Same pointer can be different edit if editing took place
 824                                         if(pixmap->edit_id == edit->id &&
 825                                                 pixmap->pane_number == pane->number)
 826                                         {
 827                                                 pixmap->visible = 1;
 828                                                 break;
 829                                         }
 830                                 }
 831                                 if(debug) PRINT_TRACE
 832
 833 // Get new size, offset of pixmap needed
 834                                 get_pixmap_size(edit,
 835                                         edit_x,
 836                                         edit_w,
 837                                         pixmap_x,
 838                                         pixmap_w,
 839                                         pixmap_h);
 840                                 if(debug) PRINT_TRACE
 841
 842 // Draw new data
 843                                 if(pixmap_w && pixmap_h)
 844                                 {
 845 // Create pixmap if it doesn't exist
 846                                         ResourcePixmap* pixmap = create_pixmap(edit, edit_x,
 847                                                 pixmap_x, pixmap_w, pixmap_h);
 848 // Resize it if it's bigger
 849                                         if( pixmap_w > pixmap->pixmap_w ||
 850                                             pixmap_h > pixmap->pixmap_h)
 851                                                 pixmap->resize(pixmap_w, pixmap_h);
 852                                         pixmap->update_settings(edit, edit_x, edit_w,
 853                                                 pixmap_x, pixmap_w, pixmap_h);
 854 // Draw data
 855                                         if( current->show_assets() )
 856                                                 pixmap->draw_data(this,
 857                                                         edit, edit_x, edit_w,
 858                                                         pixmap_x, pixmap_w, pixmap_h,
 859                                                         mode, indexes_only);
 860                                         else {
 861                                                 set_bg_color(BLACK);
 862                                                 clear_box(0,0, pixmap_w,pixmap_h, pixmap);
 863                                         }
 864 // Draw title
 865                                         if( current->show_titles() )
 866                                                 pixmap->draw_title(this,
 867                                                         edit, edit_x, edit_w,
 868                                                         pixmap_x, pixmap_w);
 869 // Resize it if it's smaller
 870                                         if(pixmap_w < pixmap->pixmap_w ||
 871                                                 pixmap_h < pixmap->pixmap_h)
 872                                                 pixmap->resize(pixmap_w, pixmap_h);
 873
 874 // Copy pixmap to background canvas
 875                                         background_pixmap->draw_pixmap(pixmap,
 876                                                 pixmap->pixmap_x,
 877                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
 878                                                 pixmap->pixmap_w,
 879                                                 edit_h);
 880                                 }
 881                                 if(debug) PRINT_TRACE
 882
 883                         }
 884                 }
 885                 int64_t track_x, track_y, track_w, track_h;
 886                 track_dimensions(current,
 887                         track_x, track_y, track_w, track_h);
 888                 set_color((~get_resources()->get_bg_color()) & 0xffffff);
 889                 set_opaque();
 890                 int x1 = track_x, x2 = x1+track_w;
 891                 int y1 = track_y+track_h-1;
 892                 draw_line(x1,y1, x2,y1, background_pixmap);
 893         }
 894
 895
 896 // Delete unused pixmaps
 897         if(debug) PRINT_TRACE
 898         if(!indexes_only)
 899                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 900                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 901                         {
 902 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 903                                 delete gui->resource_pixmaps.values[i];
 904                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 905                         }
 906         if(debug) PRINT_TRACE
 907
 908         if(hourglass_enabled)
 909         {
 910                 stop_hourglass();
 911                 hourglass_enabled = 0;
 912         }
 913         if(debug) PRINT_TRACE
 914
 915 // can't stop thread here, because this is called for every pane
 916 //      if(mode != IGNORE_THREAD && !indexes_only)
 917 //              gui->resource_thread->start_draw();
 918         if(debug) PRINT_TRACE
 919
 920
 921 }
 922
 923 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 924         int64_t edit_x,
 925         int64_t pixmap_x,
 926         int64_t pixmap_w,
 927         int64_t pixmap_h)
 928 {
 929         ResourcePixmap *result = 0;
 930
 931         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 932         {
 933 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 934                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 935                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 936                 {
 937                         result = gui->resource_pixmaps.values[i];
 938                         break;
 939                 }
 940         }
 941
 942         if(!result)
 943         {
 944 //SET_TRACE
 945                 result = new ResourcePixmap(mwindow,
 946                         gui,
 947                         edit,
 948                         pane->number,
 949                         pixmap_w,
 950                         pixmap_h);
 951 //SET_TRACE
 952                 gui->resource_pixmaps.append(result);
 953         }
 954
 955 //      result->resize(pixmap_w, pixmap_h);
 956         return result;
 957 }
 958
 959 void TrackCanvas::get_pixmap_size(Edit *edit,
 960         int64_t edit_x,
 961         int64_t edit_w,
 962         int64_t &pixmap_x,
 963         int64_t &pixmap_w,
 964         int64_t &pixmap_h)
 965 {
 966
 967 // Align x on frame boundaries
 968
 969
 970 //      switch(edit->edits->track->data_type)
 971 //      {
 972 //              case TRACK_AUDIO:
 973
 974                         pixmap_x = edit_x;
 975                         pixmap_w = edit_w;
 976                         if(pixmap_x < 0)
 977                         {
 978                                 pixmap_w -= -edit_x;
 979                                 pixmap_x = 0;
 980                         }
 981
 982                         if(pixmap_x + pixmap_w > get_w())
 983                         {
 984                                 pixmap_w = get_w() - pixmap_x;
 985                         }
 986
 987 //                      break;
 988 //
 989 //              case TRACK_VIDEO:
 990 //              {
 991 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 992 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 993 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 994 //                      int64_t pixmap_x1 = edit_x;
 995 //                      int64_t pixmap_x2 = edit_x + edit_w;
 996 //
 997 //                      if(pixmap_x1 < 0)
 998 //                      {
 999 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
1000 //                                      pixel_increment +
1001 //                                      edit_x;
1002 //                      }
1003 //
1004 //                      if(pixmap_x2 > get_w())
1005 //                      {
1006 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
1007 //                                      pixel_increment +
1008 //                                      edit_x;
1009 //                      }
1010 //                      pixmap_x = pixmap_x1;
1011 //                      pixmap_w = pixmap_x2 - pixmap_x1;
1012 //                      break;
1013 //              }
1014 //      }
1015
1016         Track *track = edit->edits->track;
1017         pixmap_h = track->data_h;
1018         if( track->show_titles() )
1019                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
1020 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
1021 }
1022
1023 void TrackCanvas::edit_dimensions(Edit *edit,
1024         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1025 {
1026         x = Units::round(edit->track->from_units(edit->startproject) *
1027                         mwindow->edl->session->sample_rate /
1028                         mwindow->edl->local_session->zoom_sample -
1029                         mwindow->edl->local_session->view_start[pane->number]);
1030
1031         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1032
1033 // Method for calculating w so when edits are together we never get off by one error due to rounding
1034         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
1035                         mwindow->edl->session->sample_rate /
1036                         mwindow->edl->local_session->zoom_sample -
1037                         mwindow->edl->local_session->view_start[pane->number]);
1038         w = x_next - x;
1039
1040         int edit_h = 0;
1041         if( edit->track->show_titles() )
1042                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
1043         if( edit->track->show_assets() )
1044                 edit_h += edit->track->data_h;
1045         h = edit_h;
1046 }
1047
1048 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1049 {
1050         x = 0;
1051         w = get_w();
1052         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1053         h = track->vertical_span(mwindow->theme);
1054 }
1055
1056
1057 void TrackCanvas::draw_paste_destination()
1058 {
1059         //int cursor_x = get_relative_cursor_x();
1060         //int cursor_y = get_relative_cursor_y();
1061         int current_atrack = 0;
1062         int current_vtrack = 0;
1063         int current_aedit = 0;
1064         int current_vedit = 0;
1065         int64_t w = 0;
1066         int64_t x;
1067         double position;
1068         int insertion  = 0;
1069
1070 //if(pane->number == BOTTOM_RIGHT_PANE)
1071 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1072
1073         if((mwindow->session->current_operation == DRAG_ASSET &&
1074                         (mwindow->session->drag_assets->total ||
1075                         mwindow->session->drag_clips->total)) ||
1076                 (mwindow->session->current_operation == DRAG_EDIT &&
1077                         mwindow->session->drag_edits->total)) {
1078                 Indexable *indexable = 0;
1079                 EDL *clip = 0;
1080                 //int draw_box = 0;
1081
1082                 if(mwindow->session->current_operation == DRAG_ASSET &&
1083                         mwindow->session->drag_assets->size())
1084                         indexable = mwindow->session->drag_assets->get(0);
1085
1086                 if(mwindow->session->current_operation == DRAG_ASSET &&
1087                         mwindow->session->drag_clips->size())
1088                         clip = mwindow->session->drag_clips->get(0);
1089
1090                 int has_audio = 0, has_video = 0;
1091                 double paste_audio_length = 0, paste_video_length = 0;
1092                 double paste_audio_position = -1, paste_video_position = -1;
1093
1094                 if( indexable ) {
1095                         has_audio = indexable->have_audio();
1096                         paste_audio_length = !has_audio ? 0 :
1097                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1098                         has_video = indexable->have_video();
1099                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1100                         // Images have length -1
1101                         if( asset && asset->video_data && asset->video_length < 0 ) {
1102                                 paste_video_length = mwindow->edl->session->si_useduration ?
1103                                         mwindow->edl->session->si_duration / asset->frame_rate :
1104                                         1.0 / asset->frame_rate ;  // 1 frame
1105                         }
1106                         else
1107                                 paste_video_length = !has_video ? 0 :
1108                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1109                 }
1110
1111                 if( clip ) {
1112                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1113                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1114                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1115                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1116                 }
1117
1118 // 'Align cursor on frame' lengths calculations
1119                 if( mwindow->edl->session->cursor_on_frames ) {
1120                         double fps = mwindow->edl->session->frame_rate;
1121                         double aud = floor(paste_audio_length * fps) / fps;
1122                         double vid = floor(paste_video_length * fps) / fps;
1123                         double length = has_video && has_audio ?
1124                                         aud < vid ? aud : vid :
1125                                 has_video ? vid :
1126                                 has_audio ? aud : 0;
1127                         paste_video_length = paste_audio_length = length;
1128                 }
1129
1130                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1131                         int64_t length = 0;
1132                         switch( mwindow->session->track_highlighted->data_type ) {
1133                         case TRACK_VIDEO: length = paste_video_length;  break;
1134                         case TRACK_AUDIO: length = paste_audio_length;  break;
1135                         }
1136                         int64_t asset_length = mwindow->session->track_highlighted->
1137                                 to_units(length, 1);
1138                         paste_audio_position = mwindow->session->track_highlighted->
1139                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1140                 }
1141                 if( has_video ) {
1142                         int64_t asset_length = mwindow->session->track_highlighted->
1143                                 to_units(paste_video_length, 1);
1144                         paste_video_position = mwindow->session->track_highlighted->
1145                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1146                 }
1147
1148 // Get destination track
1149                 for(Track *dest = mwindow->session->track_highlighted;
1150                         dest;
1151                         dest = dest->next) {
1152                         if(dest->record) {
1153 // Get source width in pixels
1154                                 w = -1;
1155 // Use start of highlighted edit
1156                                 if(mwindow->session->edit_highlighted) {
1157                                         position = mwindow->session->track_highlighted->from_units(
1158                                                 mwindow->session->edit_highlighted->startproject);
1159                                 }
1160                                 else {
1161 // Use end of highlighted track, disregarding effects
1162                                         position = mwindow->session->track_highlighted->from_units(
1163                                                 mwindow->session->track_highlighted->edits->length());
1164                                 }
1165
1166 // Get the x coordinate
1167                                 x = Units::to_int64(position *
1168                                         mwindow->edl->session->sample_rate /
1169                                         mwindow->edl->local_session->zoom_sample) -
1170                                         mwindow->edl->local_session->view_start[pane->number];
1171
1172                                 double paste_position = -1.;
1173                                 if(dest->data_type == TRACK_AUDIO) {
1174                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1175 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1176                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1177                                                         indexable->get_sample_rate() *
1178                                                         mwindow->edl->session->sample_rate /
1179                                                         mwindow->edl->local_session->zoom_sample);
1180                                                 paste_position = paste_audio_position;
1181                                         }
1182                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1183                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1184                                                         mwindow->edl->session->sample_rate /
1185                                                         mwindow->edl->local_session->zoom_sample);
1186                                                 paste_position = paste_audio_position;
1187 //printf("draw_paste_destination %d\n", x);
1188                                         }
1189                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1190                                                 current_aedit < mwindow->session->drag_edits->total) {
1191                                                 Edit *edit;
1192                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1193                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1194                                                         current_aedit++;
1195
1196                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1197                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1198                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1199                                                         paste_position = mwindow->session->track_highlighted->
1200                                                                 from_units(drop_edit_position(&insertion,
1201                                                                         mwindow->session->drag_edit,
1202                                                                         mwindow->session->drag_edit->length));
1203                                                         current_aedit++;
1204                                                 }
1205                                         }
1206                                         if( paste_position >= 0 ) {
1207                                                 position = paste_position;
1208                                                 current_atrack++;
1209                                                 //draw_box = 1;
1210                                         }
1211                                         else
1212                                                 w = -1;
1213                                 }
1214                                 else if(dest->data_type == TRACK_VIDEO) {
1215 //printf("draw_paste_destination 1\n");
1216                                         if(indexable && current_vtrack < indexable->get_video_layers())
1217                                         {
1218                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1219                                                         indexable->get_frame_rate() *
1220                                                         mwindow->edl->session->sample_rate /
1221                                                         mwindow->edl->local_session->zoom_sample);
1222                                                 paste_position = paste_video_position;
1223                                         }
1224                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1225                                                 w = Units::to_int64(clip->tracks->total_length() *
1226                                                         mwindow->edl->session->sample_rate /
1227                                                         mwindow->edl->local_session->zoom_sample);
1228                                                 paste_position = paste_video_position;
1229                                         }
1230                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1231                                                 current_vedit < mwindow->session->drag_edits->total) {
1232                                                 Edit *edit;
1233                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1234                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1235                                                         current_vedit++;
1236
1237                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1238                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1239                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1240                                                                 mwindow->edl->session->sample_rate /
1241                                                                 mwindow->edl->local_session->zoom_sample);
1242                                                         paste_position = mwindow->session->track_highlighted->
1243                                                                 from_units(drop_edit_position(&insertion,
1244                                                                         mwindow->session->drag_edit,
1245                                                                         mwindow->session->drag_edit->length));
1246                                                         current_vedit++;
1247                                                 }
1248                                         }
1249                                         if( paste_position >= 0 ) {
1250                                                 position = paste_position;
1251                                                 current_vtrack++;
1252                                                 //draw_box = 1;
1253                                         }
1254                                         else
1255                                                 w = -1;
1256                                 }
1257
1258                                 if(w >= 0) {
1259 // Get the x coordinate
1260                                         x = Units::to_int64(position *
1261                                                 mwindow->edl->session->sample_rate /
1262                                                 mwindow->edl->local_session->zoom_sample) -
1263                                                 mwindow->edl->local_session->view_start[pane->number];
1264                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1265                                         int h = dest->vertical_span(mwindow->theme);
1266
1267 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1268                                         if(x < -BC_INFINITY) {
1269                                                 w -= -BC_INFINITY - x;
1270                                                 x += -BC_INFINITY - x;
1271                                         }
1272                                         w = MIN(65535, w);
1273 // if(pane->number == TOP_RIGHT_PANE)
1274 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1275 // __LINE__, x, y, w, h);
1276                                         if (insertion)
1277                                                 draw_highlight_insertion(x, y, w, h);
1278                                         else
1279                                                 draw_highlight_rectangle(x, y, w, h);
1280                                 }
1281                         }
1282                 }
1283         }
1284 }
1285
1286 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1287 {
1288         x = Units::round(plugin->track->from_units(plugin->startproject) *
1289                 mwindow->edl->session->sample_rate /
1290                 mwindow->edl->local_session->zoom_sample -
1291                 mwindow->edl->local_session->view_start[pane->number]);
1292         w = Units::round(plugin->track->from_units(plugin->length) *
1293                 mwindow->edl->session->sample_rate /
1294                 mwindow->edl->local_session->zoom_sample);
1295         y = plugin->track->y_pixel
1296                 - mwindow->edl->local_session->track_start[pane->number];
1297         if( plugin->track->show_titles() )
1298                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1299         if( plugin->track->show_assets() )
1300                 y += plugin->track->data_h;
1301         y += plugin->plugin_set->get_number() *
1302                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1303         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1304 }
1305
1306
1307 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1308 {
1309
1310 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1311 // just draw arrows, so user has indication that something is there
1312 // FIXME: get better colors
1313
1314         if (x + w <= 0)
1315         {
1316                 draw_triangle_left(0, y + h /6,
1317                         h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1318                 return;
1319         } else
1320         if (x >= get_w())
1321         {
1322                 draw_triangle_right(get_w() - h * 2/3, y + h /6,
1323                         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) { w += x - -10;  x = -10; }
1331         if(y < -10) { h += y - -10;  y = -10; }
1332
1333         w = MIN(w, get_w() + 20);
1334         h = MIN(h, get_h() + 20);
1335         if(w > 0 && h > 0)
1336         {
1337                 set_color(mwindow->preferences->highlight_inverse);
1338                 set_inverse();
1339                 //draw_rectangle(x, y, w, h);
1340                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1341                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1342                 set_opaque();
1343                 draw_rectangle(x, y, w, h);
1344         }
1345 //if(pane->number == TOP_RIGHT_PANE)
1346 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1347 }
1348
1349 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1350 {
1351
1352 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1353 // just draw arrows, so user has indication that something is there
1354 // FIXME: get better colors
1355
1356
1357
1358         int h1 = h / 8;
1359         int h2 = h / 4;
1360
1361         set_inverse();
1362
1363 /* these don't look so good
1364
1365         draw_line(x, y, x, y+h);
1366         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1367         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1368         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1369         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1370 */
1371         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1372         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1373
1374 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1375         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1376         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1377         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1378 */
1379         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1380         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1381
1382 // draw the box centred around x
1383         x -= w / 2;
1384 // Fix bug in heroines & cvs version as of 22.8.2005:
1385 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1386         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1387         if(x < -10) { w += x - -10;  x = -10; }
1388         if(y < -10) { h += y - -10;  y = -10; }
1389         w = MIN(w, get_w() + 20);
1390         h = MIN(h, get_h() + 20);
1391         set_color(mwindow->preferences->highlight_inverse);
1392         set_inverse();
1393         draw_rectangle(x, y, w, h);
1394         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1395         set_opaque();
1396 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1397 }
1398
1399 void TrackCanvas::draw_playback_cursor()
1400 {
1401 // Called before playback_cursor exists
1402 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1403 //      {
1404 //              mwindow->playback_cursor->visible = 0;
1405 //              mwindow->playback_cursor->draw();
1406 //      }
1407 }
1408
1409 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1410 {
1411         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1412         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1413
1414         edit_dimensions(edit, x, y, w, h);
1415
1416         if( edit->track->show_titles() )
1417                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1418
1419         if(side == EDIT_OUT)
1420                 x += w - handle_w;
1421
1422         h = handle_h;
1423         w = handle_w;
1424 }
1425
1426 void TrackCanvas::get_transition_coords(Edit *edit,
1427                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1428 {
1429         int transition_w = xS(30), transition_h = yS(30);
1430         int has_titles = edit->track->show_titles();
1431         int has_assets = edit->track->show_assets();
1432         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1433         int data_h = edit->track->data_h;
1434         double ys = has_assets ? data_h : has_titles ? title_bg_h : 0;
1435         double dy = has_titles ?
1436                 ( has_assets ? title_bg_h + data_h/2 : title_bg_h/2 ) :
1437                 ( has_assets ? data_h/2 : 0) ;
1438         double title_h = mwindow->theme->title_h;
1439         if( dy < title_h / 2 ) { ys = title_h;  dy = ys / 2; }
1440         y += dy;
1441
1442         x -= transition_w / 2;
1443         y -= transition_h / 2;
1444         w = transition_w;
1445         h = transition_h;
1446 }
1447
1448 void TrackCanvas::draw_highlighting()
1449 {
1450         int64_t x, y, w, h;
1451         int draw_box = 0;
1452
1453         switch(mwindow->session->current_operation)
1454         {
1455                 case DRAG_ATRANSITION:
1456                 case DRAG_VTRANSITION:
1457 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1458 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1459                         if(mwindow->session->edit_highlighted) {
1460                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1461                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1462                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1463                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1464                                         edit_dimensions(mwindow->session->edit_highlighted,
1465                                                 x, y, w, h);
1466                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1467                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1468                                                 draw_box = 1;
1469                                                 get_transition_coords(mwindow->session->edit_highlighted,
1470                                                         x, y, w, h);
1471                                         }
1472                                 }
1473                         }
1474                         break;
1475
1476 // Dragging a new effect from the Resource window
1477                 case DRAG_AEFFECT:
1478                 case DRAG_VEFFECT:
1479                         if(mwindow->session->track_highlighted &&
1480                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1481                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1482                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1483                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1484 // Put it before another plugin
1485                                 if(mwindow->session->plugin_highlighted) {
1486                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1487                                                 x, y, w, h);
1488 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1489                                 }
1490 // Put it after a plugin set
1491                                 else if( mwindow->session->pluginset_highlighted &&
1492                                          mwindow->session->pluginset_highlighted->last ) {
1493                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1494                                                 x, y, w, h);
1495 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1496                                         int64_t track_x, track_y, track_w, track_h;
1497                                         track_dimensions(mwindow->session->track_highlighted,
1498                                                 track_x, track_y, track_w, track_h);
1499
1500                                         x += w;
1501                                         w = Units::round(
1502                                                         mwindow->session->track_highlighted->get_length() *
1503                                                         mwindow->edl->session->sample_rate /
1504                                                         mwindow->edl->local_session->zoom_sample -
1505                                                         mwindow->edl->local_session->view_start[pane->number]) -
1506                                                 x;
1507 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1508                                         if(w <= 0) w = track_w;
1509                                 }
1510                                 else {
1511                                         track_dimensions(mwindow->session->track_highlighted,
1512                                                 x, y, w, h);
1513
1514 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1515 // Put it in a new plugin set determined by the selected range
1516                                         if(mwindow->edl->local_session->get_selectionend() >
1517                                                 mwindow->edl->local_session->get_selectionstart()) {
1518                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1519                                                         mwindow->edl->session->sample_rate /
1520                                                         mwindow->edl->local_session->zoom_sample -
1521                                                         mwindow->edl->local_session->view_start[pane->number]);
1522                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1523                                                         mwindow->edl->local_session->get_selectionstart()) *
1524                                                         mwindow->edl->session->sample_rate /
1525                                                         mwindow->edl->local_session->zoom_sample);
1526                                         }
1527 // Put it in a new plugin set determined by an edit boundary
1528                                         else if(mwindow->session->edit_highlighted) {
1529                                                 int64_t temp_y, temp_h;
1530                                                 edit_dimensions(mwindow->session->edit_highlighted,
1531                                                         x, temp_y, w, temp_h);
1532                                         }
1533 // Put it at the beginning of the track in a new plugin set
1534                                 }
1535
1536                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1537                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1538 //printf("TrackCanvas::draw_highlighting 1\n");
1539                                         draw_box = 1;
1540                                 }
1541                         }
1542                         break;
1543
1544                 case DRAG_ASSET:
1545                         if(mwindow->session->track_highlighted) {
1546 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1547
1548 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1549 //                              {
1550                                         draw_paste_destination();
1551 //                              }
1552                         }
1553                         break;
1554
1555                 case DRAG_EDIT:
1556                         if(mwindow->session->track_highlighted) {
1557 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1558 //
1559 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1560                                         draw_paste_destination();
1561 //                              }
1562                         }
1563                         break;
1564                 case DRAG_GROUP:
1565                         if( mwindow->session->track_highlighted && mwindow->session->drag_group &&
1566                             mwindow->session->drag_group_edit && mwindow->session->drag_group_first_track ) {
1567                                 Track *track = mwindow->session->track_highlighted;
1568                                 EDL *drag_group = mwindow->session->drag_group;
1569                                 Track *edit_track = mwindow->session->drag_group_edit->track;
1570                                 Track *drag_track = mwindow->session->drag_group_first_track;
1571                                 while( track && edit_track && edit_track != drag_track ) {
1572                                         edit_track = edit_track->previous;
1573                                         track = track->previous;
1574                                 }
1575                                 int cx = get_cursor_x();
1576                                 double cur_pos = mwindow->session->drag_group_position;
1577                                 double new_pos = mwindow->edl->get_cursor_position(cx, pane->number);
1578                                 new_pos -= mwindow->session->drag_position - cur_pos;
1579                                 new_pos = mwindow->edl->align_to_frame(new_pos, 0);
1580                                 double drop_position = new_pos;
1581                                 int color = GREEN;
1582                                 int ret = test_track_group(drag_group, track, new_pos);
1583                                 if( ret < 0 )
1584                                         color = ORANGE;
1585                                 else if( !ret ) {
1586                                         if( new_pos != drop_position ) {
1587                                                 double pos = new_pos;
1588                                                 pos += mwindow->session->drag_position - cur_pos;
1589                                                 cx = mwindow->edl->get_position_cursorx(pos, pane->number);
1590                                                 ret = test_track_group(drag_group, track, new_pos);
1591                                         }
1592                                         color = ret > 0 ? YELLOW : shift_down() ? RED : BLUE;
1593                                 }
1594                                 track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1595                                 int dx = cx - mwindow->session->drag_origin_x;
1596                                 int dy = y - mwindow->session->drag_origin_y;
1597                                 draw_selected_edits(mwindow->edl, dx, dy, color, -1);
1598                         }
1599                         break;
1600 // Dragging an effect from the timeline
1601                 case DRAG_AEFFECT_COPY:
1602                 case DRAG_VEFFECT_COPY:
1603                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1604                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1605                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1606                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1607                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1608
1609                                 int64_t plugin_position = -1;
1610                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1611                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1612                                 Track *hi_track = mwindow->session->track_highlighted;
1613                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1614 // Put it into a silence zone
1615                                 if( hi_plugin_set && hi_plugin_set->last &&
1616                                     hi_plugin_set->track == drag_plugin->track ) {
1617                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1618                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1619                                         hi_track = drag_plugin->track;
1620                                 }
1621                                 else if( hi_track ) {
1622 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1623                                         track_dimensions(hi_track, x, y, w, h);
1624                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1625                                 }
1626
1627                                 if( plugin_position < 0 ) break;
1628
1629 // Calculate length of plugin based on data type of track and units
1630                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1631                                                 mwindow->edl->local_session->zoom_sample;
1632                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1633                                                 mwindow->edl->local_session->view_start[pane->number];
1634                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1635
1636                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1637                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1638                                         draw_box = 1;
1639                                 }
1640                         }
1641                         break;
1642
1643                 case DRAG_PLUGINKEY:
1644                         if(mwindow->session->plugin_highlighted &&
1645                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1646                         {
1647 // Just highlight the plugin
1648                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1649
1650                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1651                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1652                                 {
1653                                         draw_box = 1;
1654                                 }
1655                         }
1656                         break;
1657
1658         }
1659
1660         if( draw_box )
1661                 draw_highlight_rectangle(x, y, w, h);
1662
1663         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1664 }
1665
1666 // x does not reliably draw a really big rectangle
1667 void TrackCanvas::draw_selected(int x, int y, int w, int h)
1668 {
1669         int x1 = bmax(x, 0), x2 = bmin(x+w, get_w());
1670         if( x1 > x2 ) return;
1671         int y1 = bmax(y, 0), y2 = bmin(y+h, get_h());
1672         if( y1 > y2 ) return;
1673         if( x   >= 0 && x   < get_w() ) draw_line(x,y1,   x,y2);
1674         if( x+w >= 0 && x+w < get_w() ) draw_line(x+w,y1, x+w,y2);
1675         if( y   >= 0 && y   < get_h() ) draw_line(x1,y,   x2,y);
1676         if( y+h >= 0 && y+h < get_h() ) draw_line(x1,y+h, x2,y+h);
1677 }
1678
1679 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1680 {
1681         int dropping = 0;
1682         for( Track *track=edl->tracks->first; track; track=track->next ) {
1683                 if( !track->record && color1 < 0 ) {
1684                         if( dropping )
1685                                 dy -= track->vertical_span(mwindow->theme);
1686                         continue;
1687                 }
1688                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1689                         if( !edit->is_selected ) continue;
1690                         dropping = 1;
1691                         int64_t x, y, w, h;
1692                         edit_dimensions(edit, x, y, w, h);
1693                         x += dx;  y += dy;
1694                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1695                         if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1696                         set_opaque();
1697                         int inner = color1 < 0 ? color0 : !edit->group_id ? color0 :
1698                                 mwindow->get_group_color(edit->group_id);
1699                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1700                         set_color(track->record ? inner : outer);
1701                         draw_selected(x, y, w, h);
1702                         set_color(track->record ? outer : inner);
1703                         draw_selected(x-1, y-1, w+2, h+2);
1704                         draw_selected(x-2, y-2, w+1, h+1);
1705                 }
1706         }
1707 }
1708
1709 void TrackCanvas::draw_plugins()
1710 {
1711         char string[BCTEXTLEN];
1712         int current_on = 0;
1713         int current_show = 0;
1714         int current_preset = 0;
1715
1716         for(int i = 0; i < plugin_on_toggles.total; i++)
1717                 plugin_on_toggles.values[i]->in_use = 0;
1718         for(int i = 0; i < plugin_show_toggles.total; i++)
1719                 plugin_show_toggles.values[i]->in_use = 0;
1720         for(int i = 0; i < preset_edit_buttons.total; i++)
1721                 plugin_show_toggles.values[i]->in_use = 0;
1722
1723
1724         for(Track *track = mwindow->edl->tracks->first;
1725                 track;
1726                 track = track->next)
1727         {
1728                 if(track->expand_view)
1729                 {
1730                         for(int i = 0; i < track->plugin_set.total; i++)
1731                         {
1732                                 PluginSet *pluginset = track->plugin_set.values[i];
1733
1734                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1735                                 {
1736                                         int64_t total_x, y, total_w, h;
1737                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1738
1739                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1740                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1741                                                 plugin->plugin_type != PLUGIN_NONE)
1742                                         {
1743                                                 int x = total_x, w = total_w, left_margin = 5;
1744                                                 int right_margin = 5;
1745                                                 if(x < 0)
1746                                                 {
1747                                                         w -= -x;
1748                                                         x = 0;
1749                                                 }
1750                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1751
1752                                                 draw_3segmenth(x,
1753                                                         y,
1754                                                         w,
1755                                                         total_x,
1756                                                         total_w,
1757                                                         mwindow->theme->get_image("plugin_bg_data"),
1758                                                         0);
1759                                                 set_color(mwindow->theme->title_color);
1760                                                 set_font(mwindow->theme->title_font);
1761                                                 plugin->calculate_title(string, 0);
1762
1763 // Truncate string to int64_test visible in background
1764                                                 int len = strlen(string), j;
1765                                                 for(j = len; j >= 0; j--)
1766                                                 {
1767                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1768                                                         {
1769                                                                 string[j] = 0;
1770                                                         }
1771                                                         else
1772                                                                 break;
1773                                                 }
1774
1775 // Justify the text on the left boundary of the edit if it is visible.
1776 // Otherwise justify it on the left side of the screen.
1777                                                 int64_t text_x = total_x + left_margin;
1778                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1779                                                 text_x = MAX(left_margin, text_x);
1780                                                 draw_text(text_x,
1781                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1782                                                         string,
1783                                                         strlen(string),
1784                                                         0);
1785                                                 int64_t min_x = total_x + text_w;
1786
1787
1788 // Update plugin toggles
1789                                                 int toggle_x = total_x + total_w;
1790                                                 int toggle_y = y;
1791                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1792
1793 // On toggle
1794                                                 toggle_x -= PluginOn::calculate_w(mwindow) + xS(10);
1795                                                 if(toggle_x > min_x)
1796                                                 {
1797                                                         if(current_on >= plugin_on_toggles.total)
1798                                                         {
1799                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1800                                                                 add_subwindow(plugin_on);
1801                                                                 plugin_on_toggles.append(plugin_on);
1802                                                         }
1803                                                         else
1804                                                         {
1805                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1806                                                         }
1807                                                         current_on++;
1808                                                 }
1809
1810 // Toggles for standalone plugins only
1811                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1812                                                 {
1813 // Show
1814                                                         toggle_x -= PluginShow::calculate_w(mwindow) + xS(10);
1815                                                         if(toggle_x > min_x)
1816                                                         {
1817                                                                 if(current_show >= plugin_show_toggles.total)
1818                                                                 {
1819                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1820                                                                         add_subwindow(plugin_show);
1821                                                                         plugin_show_toggles.append(plugin_show);
1822                                                                 }
1823                                                                 else
1824                                                                 {
1825                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1826                                                                 }
1827                                                                 current_show++;
1828                                                         }
1829                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + xS(10);
1830                                                         if(toggle_x > min_x)
1831                                                         {
1832                                                                 if(current_preset >= preset_edit_buttons.total)
1833                                                                 {
1834                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1835                                                                         add_subwindow(preset_edit);
1836                                                                         preset_edit_buttons.append(preset_edit);
1837                                                                 }
1838                                                                 else
1839                                                                 {
1840                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1841                                                                 }
1842                                                                 current_preset++;
1843                                                         }
1844                                                 }
1845                                         }
1846                                 }
1847                         }
1848                 }
1849         }
1850
1851 // Remove unused toggles
1852
1853         while(current_preset < preset_edit_buttons.total)
1854         {
1855                 preset_edit_buttons.remove_object_number(current_preset);
1856         }
1857         while(current_show < plugin_show_toggles.total)
1858         {
1859                 plugin_show_toggles.remove_object_number(current_show);
1860         }
1861
1862         while(current_on < plugin_on_toggles.total)
1863         {
1864                 plugin_on_toggles.remove_object_number(current_on);
1865         }
1866 }
1867
1868 void TrackCanvas::refresh_plugintoggles()
1869 {
1870         for(int i = 0; i < plugin_on_toggles.total; i++)
1871         {
1872                 PluginOn *on = plugin_on_toggles.values[i];
1873                 on->reposition_window(on->get_x(), on->get_y());
1874         }
1875         for(int i = 0; i < plugin_show_toggles.total; i++)
1876         {
1877                 PluginShow *show = plugin_show_toggles.values[i];
1878                 show->reposition_window(show->get_x(), show->get_y());
1879         }
1880         for(int i = 0; i < preset_edit_buttons.total; i++)
1881         {
1882                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1883                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1884         }
1885 }
1886
1887 void TrackCanvas::draw_hard_edges()
1888 {
1889         if( !mwindow->edl->session->auto_conf->hard_edges )
1890                 return;
1891         int64_t x, y, w, h;
1892
1893         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1894                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1895                         if( !edit->hard_left && !edit->hard_right ) continue;
1896                         edit_dimensions(edit, x, y, w, h);
1897                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ||
1898                             !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1899                         set_color(GREEN);
1900                         set_opaque();
1901                         int y1 = y;
1902                         if( track->show_titles() )
1903                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1904                         if( track->show_assets() )
1905                                 y1 += track->data_h;
1906                         if( y1 == y )
1907                                 y1 += mwindow->theme->title_h;
1908                         if( edit->hard_left ) {
1909                                 ArrayList<int> xpt, ypt;
1910                                 xpt.append(x);              ypt.append(y1);
1911                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1912                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1913                                 fill_polygon(&xpt, &ypt);
1914                         }
1915                         if( edit->hard_right ) {
1916                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1917                                 xpt.append(x1);            ypt.append(y1);
1918                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1919                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1920                                 fill_polygon(&xpt, &ypt);
1921                         }
1922                 }
1923         }
1924 }
1925
1926 void TrackCanvas::draw_inout_points()
1927 {
1928 }
1929
1930
1931 void TrackCanvas::draw_drag_handle()
1932 {
1933         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 &&
1934             mwindow->session->current_operation != DRAG_PLUGINHANDLE2 ) return;
1935         int64_t pixel1 = Units::round(mwindow->session->drag_position *
1936                 mwindow->edl->session->sample_rate /
1937                 mwindow->edl->local_session->zoom_sample -
1938                 mwindow->edl->local_session->view_start[pane->number]);
1939         set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1940         set_inverse();
1941         draw_line(pixel1, 0, pixel1, get_h());
1942         set_opaque();
1943
1944         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 ) return;
1945         if( !mwindow->session->drag_edit ) return;
1946         int group_id = mwindow->session->drag_edit->group_id;
1947         if( !group_id ) return;
1948         int64_t dx, dy, dw, dh;
1949         edit_dimensions(mwindow->session->drag_edit, dx, dy, dw, dh);
1950         int drag_handle = mwindow->session->drag_handle;
1951         int64_t pixel0 = !drag_handle ? dx : dx + dw;
1952         int delta = pixel1 - pixel0;
1953         set_color(LTPURPLE);
1954         set_line_width(3);
1955
1956         for( Track *track=mwindow->edl->tracks->first; track; track=track->next ) {
1957                 Edit *left = 0, *right = 0;
1958                 double start = DBL_MAX, end = DBL_MIN;
1959                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1960                         if( edit->group_id != group_id ) continue;
1961                         double edit_start = edit->track->from_units(edit->startproject);
1962                         if( edit_start < start ) { start = edit_start;  left = edit; }
1963                         double edit_end = edit->track->from_units(edit->startproject+edit->length);
1964                         if( edit_end > end ) { end = edit_end;  right = edit; }
1965                 }
1966                 Edit *edit = !drag_handle ? left : right;
1967                 if( !edit ) continue;
1968                 Indexable *idxbl = edit->asset;
1969                 if( !idxbl ) idxbl = edit->nested_edl;
1970                 int can_drag = idxbl ? 1 : 0;
1971                 if( drag_handle ) {
1972                         int64_t source_len = !idxbl ? -1 :
1973                                 edit->track->data_type == TRACK_AUDIO ?
1974                                         idxbl->get_audio_samples() :
1975                                 edit->track->data_type == TRACK_VIDEO ?
1976                                         idxbl->get_video_frames() : -1;
1977                         if( edit->startsource + edit->length >= source_len )
1978                                 can_drag = 0;
1979                 }
1980                 else if( !edit->startsource )
1981                         can_drag = 0;
1982                 int64_t x, y, w, h;
1983                 edit_dimensions(edit, x, y, w, h);
1984                 if( y+h < 0 || y >= get_h() ) continue;
1985                 int edge_x = !drag_handle ? x : x + w;
1986                 int edge_y = y + h/2, xs10 = xS(10), ys10 = yS(10);
1987                 if( edge_x >= 0 && edge_x < get_w() ) {
1988                         if( !can_drag ) {
1989                                 draw_line(edge_x-xs10,edge_y-ys10, edge_x+xs10,edge_y+ys10);
1990                                 draw_line(edge_x-xs10,edge_y+ys10, edge_x+xs10,edge_y-ys10);
1991                         }
1992                         else if( !drag_handle ) {
1993                                 draw_line(edge_x+xs10,edge_y-ys10, edge_x,edge_y);
1994                                 draw_line(edge_x+xs10,edge_y+ys10, edge_x,edge_y);
1995                         }
1996                         else {
1997                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y-ys10);
1998                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y+ys10);
1999                         }
2000                 }
2001                 edge_x += delta;
2002                 if( edge_x >= 0 && edge_x < get_w() ) {
2003                         draw_line(edge_x, y, edge_x, y+h);
2004                 }
2005         }
2006         set_line_width(1);
2007 }
2008
2009
2010 void TrackCanvas::draw_transitions()
2011 {
2012         int64_t x, y, w, h;
2013
2014         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2015                 if( !track->show_transitions() ) continue;
2016
2017                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2018                         if(!edit->transition) continue;
2019                         edit_dimensions(edit, x, y, w, h);
2020                         int strip_x = x, edit_y = y;
2021                         get_transition_coords(edit, x, y, w, h);
2022                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2023                         if( track->show_assets() && track->show_titles() )
2024                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2025                         if( strip_y < edit_y ) strip_y = edit_y;
2026
2027                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2028                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2029                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2030                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2031                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2032                                                 track->data_type);
2033                                 if( !server ) continue;
2034                                 VFrame *picon = server->get_picon();
2035                                 if( !picon ) continue;
2036                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2037                                 int track_h = edit->track->vertical_span(mwindow->theme);
2038                                 if( picon_h > track_h ) picon_h = track_h;
2039                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2040                         }
2041                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2042                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2043                                 int x = strip_x, w = strip_w;
2044                                 if( x < 0 ) {  w -= -x;  x = 0; }
2045                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2046
2047                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2048                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2049                         }
2050                 }
2051         }
2052 }
2053
2054 void TrackCanvas::draw_loop_points()
2055 {
2056 //printf("TrackCanvas::draw_loop_points 1\n");
2057         if(mwindow->edl->local_session->loop_playback)
2058         {
2059 //printf("TrackCanvas::draw_loop_points 2\n");
2060                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2061                         mwindow->edl->session->sample_rate /
2062                         mwindow->edl->local_session->zoom_sample -
2063                         mwindow->edl->local_session->view_start[pane->number]);
2064 //printf("TrackCanvas::draw_loop_points 3\n");
2065
2066                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2067                 {
2068                         set_color(GREEN);
2069                         draw_line(x, 0, x, get_h());
2070                 }
2071 //printf("TrackCanvas::draw_loop_points 4\n");
2072
2073                 x = Units::round(mwindow->edl->local_session->loop_end *
2074                         mwindow->edl->session->sample_rate /
2075                         mwindow->edl->local_session->zoom_sample -
2076                         mwindow->edl->local_session->view_start[pane->number]);
2077 //printf("TrackCanvas::draw_loop_points 5\n");
2078
2079                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2080                 {
2081                         set_color(GREEN);
2082                         draw_line(x, 0, x, get_h());
2083                 }
2084 //printf("TrackCanvas::draw_loop_points 6\n");
2085         }
2086 //printf("TrackCanvas::draw_loop_points 7\n");
2087 }
2088
2089 void TrackCanvas::draw_brender_range()
2090 {
2091         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2092         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2093         if( mwindow->edl->session->brender_end > 0 )
2094         {
2095                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2096                         mwindow->edl->session->sample_rate /
2097                         mwindow->edl->local_session->zoom_sample -
2098                         mwindow->edl->local_session->view_start[pane->number]);
2099                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2100                 {
2101                         set_color(RED);
2102                         draw_line(x1, 0, x1, get_h());
2103                 }
2104                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2105                         mwindow->edl->session->sample_rate /
2106                         mwindow->edl->local_session->zoom_sample -
2107                         mwindow->edl->local_session->view_start[pane->number]);
2108
2109                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2110                 {
2111                         set_color(RED);
2112                         draw_line(x2, 0, x2, get_h());
2113                 }
2114         }
2115 }
2116
2117 // The operations which correspond to each automation type
2118 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2119 {
2120         DRAG_MUTE,
2121         DRAG_CAMERA_X,
2122         DRAG_CAMERA_Y,
2123         DRAG_CAMERA_Z,
2124         DRAG_PROJECTOR_X,
2125         DRAG_PROJECTOR_Y,
2126         DRAG_PROJECTOR_Z,
2127         DRAG_FADE,
2128         DRAG_PAN,
2129         DRAG_MODE,
2130         DRAG_MASK,
2131         DRAG_SPEED
2132 };
2133
2134 // The buttonpress operations, so nothing changes unless the mouse moves
2135 // a certain amount.  This allows the keyframe to be used to position the
2136 // insertion point without moving itself.
2137 static int pre_auto_operations[AUTOMATION_TOTAL] =
2138 {
2139         DRAG_MUTE,
2140         DRAG_CAMERA_X,
2141         DRAG_CAMERA_Y,
2142         DRAG_CAMERA_Z,
2143         DRAG_PROJECTOR_X,
2144         DRAG_PROJECTOR_Y,
2145         DRAG_PROJECTOR_Z,
2146         DRAG_FADE,
2147         DRAG_PAN_PRE,
2148         DRAG_MODE_PRE,
2149         DRAG_MASK_PRE,
2150         DRAG_SPEED
2151 };
2152
2153
2154 int TrackCanvas::do_keyframes(int cursor_x,
2155         int cursor_y,
2156         int draw,
2157         int buttonpress,
2158         int &new_cursor,
2159         int &update_cursor,
2160         int &rerender)
2161 {
2162 // Note: button 3 (right mouse button) is not eaten to allow
2163 // track context menu to appear
2164         int result = 0;
2165         EDLSession *session = mwindow->edl->session;
2166
2167
2168
2169         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2170         {
2171                 0, 0, 0, 0, 0, 0, 0, 0,
2172                 pankeyframe_pixmap,
2173                 modekeyframe_pixmap,
2174                 maskkeyframe_pixmap,
2175                 0,
2176         };
2177
2178
2179
2180         for(Track *track = mwindow->edl->tracks->first;
2181                 track && !result;
2182                 track = track->next) {
2183                 Auto *auto_keyframe = 0;
2184                 Automation *automation = track->automation;
2185
2186
2187 // Handle keyframes in reverse drawing order if a button press
2188                 int start = 0;
2189                 int end = AUTOMATION_TOTAL;
2190                 int step = 1;
2191                 if(buttonpress)
2192                 {
2193                         start = AUTOMATION_TOTAL - 1;
2194                         end = -1;
2195                         step = -1;
2196                 }
2197                 for(int i = start; i != end && !result; i += step)
2198                 {
2199 // Event not trapped and automation visible
2200                         Autos *autos = automation->autos[i];
2201                         if(!result && session->auto_conf->autos[i] && autos) {
2202                                 switch(i) {
2203                                 case AUTOMATION_MODE:
2204                                 case AUTOMATION_PAN:
2205                                 case AUTOMATION_MASK:
2206                                         result = do_autos(track, automation->autos[i],
2207                                                 cursor_x, cursor_y, draw,
2208                                                 buttonpress, auto_pixmaps[i],
2209                                                 auto_keyframe, rerender);
2210                                                 break;
2211
2212                                 default: {
2213                                         switch(autos->get_type()) {
2214                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2215                                                 Automation automation(0, track);
2216                                                 int grouptype = automation.autogrouptype(i, track);
2217                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2218                                                         mwindow->speed_before();
2219                                                 }
2220
2221                                                 if(draw) // Do dropshadow
2222                                                         result = do_float_autos(track, autos,
2223                                                                 cursor_x, cursor_y, draw,
2224                                                                 buttonpress, 1, 1, MDGREY,
2225                                                                 auto_keyframe, grouptype);
2226                                                 result = do_float_autos(track, autos,
2227                                                         cursor_x, cursor_y, draw, buttonpress,
2228                                                         0, 0, GWindowGUI::auto_colors[i],
2229                                                         auto_keyframe, grouptype);
2230
2231                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2232                                                         mwindow->speed_after(-1);
2233                                                 if( result && buttonpress ) {
2234                                                         int color = GWindowGUI::auto_colors[i];
2235                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2236                                                 }
2237                                                 break; }
2238
2239                                         case Autos::AUTOMATION_TYPE_INT: {
2240                                                 if(draw) // Do dropshadow
2241                                                         result = do_int_autos(track, autos,
2242                                                                 cursor_x, cursor_y, draw,
2243                                                                 buttonpress, 1, 1, MDGREY,
2244                                                                 auto_keyframe);
2245                                                 result = do_int_autos(track, autos,
2246                                                         cursor_x, cursor_y, draw, buttonpress,
2247                                                         0, 0, GWindowGUI::auto_colors[i],
2248                                                         auto_keyframe);
2249                                                 break; }
2250                                         }
2251                                         break; }
2252                                 }
2253
2254                                 if(result)
2255                                 {
2256                                         if(mwindow->session->current_operation == auto_operations[i])
2257                                                 rerender = 1;
2258
2259 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2260 // __LINE__,
2261 // mwindow->session->current_operation,
2262 // auto_operations[i]);
2263                                         if(buttonpress)
2264                                         {
2265                                                 if (buttonpress == 2 && auto_keyframe )
2266                                                 {
2267                                                         double position = track->from_units(auto_keyframe->position);
2268                                                         mwindow->edl->local_session->set_selectionstart(position);
2269                                                         mwindow->edl->local_session->set_selectionend(position);
2270                                                 }
2271                                                 if (buttonpress != 3)
2272                                                 {
2273                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2274                                                                 fill_ganged_autos(get_double_click(), 0, track,
2275                                                                         (FloatAuto*)mwindow->session->drag_auto);
2276                                                         mwindow->session->current_operation = pre_auto_operations[i];
2277                                                         update_drag_caption();
2278                                                         rerender = 1;
2279                                                 }
2280                                                 else if( auto_keyframe )
2281                                                 {
2282                                                         gui->keyframe_menu->update(automation,
2283                                                                 autos,
2284                                                                 auto_keyframe);
2285                                                         gui->keyframe_menu->activate_menu();
2286                                                         rerender = 1; // the position changes
2287                                                 }
2288                                                 else if( autos )
2289                                                 {
2290                                                         gui->keyframe_hide->update(autos);
2291                                                         gui->keyframe_hide->activate_menu();
2292                                                         rerender = 1; // the position changes
2293                                                 }
2294                                                 if(buttonpress == 1 && ctrl_down() &&
2295                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2296                                                         rerender = 1; // special case: curve mode changed
2297                                         }
2298                                 }
2299                         }
2300                 }
2301
2302                 if(!result && session->auto_conf->plugins) {
2303                         Plugin *plugin;
2304                         KeyFrame *keyframe;
2305                         result = do_plugin_autos(track, cursor_x, cursor_y,
2306                                 draw, buttonpress, plugin, keyframe);
2307                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2308                                 rerender = 1;
2309                         }
2310                         if(result && (buttonpress == 1)) {
2311                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2312                                 update_drag_caption();
2313                                 rerender = 1;
2314                         }
2315                         else if (result && (buttonpress == 3)) {
2316                                 gui->keyframe_menu->update(plugin, keyframe);
2317                                 gui->keyframe_menu->activate_menu();
2318                                 rerender = 1; // the position changes
2319                         }
2320                 }
2321         }
2322
2323 // Final pass to trap event
2324         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2325                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2326                         mwindow->session->current_operation == auto_operations[i]) {
2327                         result = 1;
2328                         break;
2329                 }
2330         }
2331
2332         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2333                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2334                 result = 1;
2335         }
2336
2337         update_cursor = 1;
2338         if(result) {
2339                 new_cursor = UPRIGHT_ARROW_CURSOR;
2340         }
2341
2342         return result;
2343 }
2344
2345 void TrackCanvas::draw_keyframe_reticle()
2346 {
2347         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2348         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2349
2350         int current_op = mwindow->session->current_operation, dragging = 0;
2351         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2352                 if( current_op == auto_operations[i] ) dragging = 1;
2353         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2354
2355         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2356                 mwindow->session->drag_auto->autos->autoidx : -1;
2357
2358         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2359             keyframe_hairline == HAIRLINE_DRAGGING ) {
2360                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2361                 return;
2362         }
2363
2364         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2365             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2366                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2367                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2368                         Automation *automation = track->automation;
2369                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2370                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2371                                 // automation visible
2372                                 Autos *autos = automation->autos[i];
2373                                 if( !autos ) continue;
2374                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2375                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2376                                      auto_keyframe = auto_keyframe->next ) {
2377                                         draw_hairline(auto_keyframe, BLUE, show);
2378                                 }
2379                         }
2380                 }
2381
2382                 if( dragging )
2383                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2384         }
2385 }
2386
2387 void TrackCanvas::draw_auto(Auto *current, int x, int y,
2388                 int center_pixel, int data_h)
2389 {
2390         int x1, y1, x2, y2;
2391
2392         x1 = x - HANDLE_W / 2;
2393         x2 = x + HANDLE_W / 2;
2394         y1 = center_pixel + y - HANDLE_W / 2;
2395         y2 = center_pixel + y + HANDLE_W / 2;
2396
2397         if( y1 < center_pixel - data_h/2 ) y1 = center_pixel - data_h/2;
2398         if( y2 > center_pixel + data_h/2 ) y2 = center_pixel + data_h/2;
2399
2400         draw_box(x1, y1, x2 - x1, y2 - y1);
2401 }
2402
2403
2404 // This draws lines for bezier in & out controls
2405 void TrackCanvas::draw_cropped_line(int x1,
2406         int y1,
2407         int x2,
2408         int y2,
2409         int min_y,
2410         int max_y)
2411 {
2412
2413
2414 // Don't care about x since it is clipped by the window.
2415 // Put y coords in ascending order
2416         if(y2 < y1) {
2417                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2418                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2419         }
2420
2421
2422
2423         double slope = (double)(x2 - x1) / (y2 - y1);
2424 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2425         if(y1 < min_y) {
2426                 x1 = (int)(x1 + (min_y - y1) * slope);
2427                 y1 = min_y;
2428         }
2429         else if(y1 >= max_y) {
2430                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2431                 y1 = max_y - 1;
2432         }
2433
2434         if(y2 >= max_y) {
2435                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2436                 y2 = max_y - 1;
2437         }
2438         else if(y2 < min_y) {
2439                 x2 = (int)(x2 + (min_y - y2) * slope);
2440                 y1 = min_y;
2441         }
2442
2443
2444 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2445         if( y1 >= min_y && y1 < max_y &&
2446             y2 >= min_y && y2 < max_y )
2447                 draw_line(x1, y1, x2, y2);
2448 }
2449
2450
2451 void TrackCanvas::draw_floatauto(FloatAuto *current, int x, int y,
2452                 int in_x, int in_y, int out_x, int out_y,
2453                 int center_pixel, int data_h, int color)
2454 {
2455         int x1 = x - HANDLE_W / 2; // Center
2456         int x2 = x + HANDLE_W / 2;
2457         int y1 = center_pixel + y - HANDLE_H / 2;
2458         int y2 = center_pixel + y + HANDLE_H / 2;
2459         int ymin = center_pixel - data_h / 2;
2460         int ymax = center_pixel + data_h / 2;
2461         CLAMP(y1, ymin, ymax);
2462         CLAMP(y2, ymin, ymax);
2463
2464         if( y2-1 > y1 ) {
2465                 if( current->curve_mode == FloatAuto::LINEAR ) {
2466                         draw_box(x1, y1, x2 - x1, y2 - y1);
2467                 }
2468                 else {
2469                         ArrayList<int> polygon_x;
2470                         ArrayList<int> polygon_y;
2471                         polygon_x.append((x1 + x2) / 2 + 1);
2472                         polygon_y.append(y1 + 1);
2473                         polygon_x.append(x2 + 1);
2474                         polygon_y.append((y1 + y2) / 2 + 1);
2475                         polygon_x.append((x1 + x2) / 2 + 1);
2476                         polygon_y.append(y2 + 1);
2477                         polygon_x.append(x1 + 1);
2478                         polygon_y.append((y1 + y2) / 2 + 1);
2479                         fill_polygon(&polygon_x, &polygon_y);
2480                 }
2481         }
2482
2483 // show bezier control points (only) if this
2484 // floatauto doesn't adjust it's tangents automatically
2485         if(current->curve_mode != FloatAuto::FREE &&
2486            current->curve_mode != FloatAuto::TFREE)
2487                 return;
2488
2489         if(in_x != x)
2490                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, data_h, color);
2491         if(out_x != x)
2492                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, data_h, color);
2493 }
2494
2495 inline int quantize(float f) { return (int)floor(f + 0.5); }
2496
2497 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2498                 int x, int y, int cp_x, int cp_y, int center_pixel,
2499                 int data_h, int color)
2500 // draw the tangent and a handle for given bézier ctrl point
2501 {
2502         bool handle_visible = (abs(cp_y) <= data_h/2);
2503
2504         float slope = (float)(cp_y - y)/(cp_x - x);
2505         CLAMP(cp_y, -data_h/2, data_h/2);
2506         if(slope != 0)
2507                 cp_x = x + quantize((cp_y - y) / slope);
2508
2509         y    += center_pixel;
2510         cp_y += center_pixel;
2511
2512         // drawing the tangent as a dashed line...
2513         int const dash = HANDLE_W;
2514         int const gap  = HANDLE_W / 2;
2515         float sx = 3 * (cp_x - x) / 4.;
2516         float ex = 0;
2517
2518         // q is the x displacement for a unit line of slope
2519         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2520
2521         float dist = 1/q * sx;
2522         if( dist > dash )
2523                 ex = sx - q * dash;
2524
2525         set_color(color);
2526         do {
2527                 float sy = slope * sx, ey = slope * ex;
2528                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2529                 sx = ex - q * gap;
2530                 ex = sx - q * dash;
2531         } while(q*ex > 0);
2532
2533         if(handle_visible)
2534         {
2535                 int r = HANDLE_W / 2;
2536                 int cp_x1 = cp_x - r;
2537                 int cp_y1 = cp_y - r;
2538                 set_color(BLACK);
2539                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2540                 set_color(color);
2541                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2542         }
2543 }
2544
2545
2546 int TrackCanvas::test_auto(Auto *current,
2547         int x, int y, int center_pixel, int data_h,
2548         int cursor_x, int cursor_y, int buttonpress)
2549 {
2550         int x1, y1, x2, y2;
2551         int result = 0;
2552
2553         x1 = x - HANDLE_W / 2;
2554         x2 = x + HANDLE_W / 2;
2555         y1 = center_pixel + y - HANDLE_H / 2;
2556         y2 = center_pixel + y + HANDLE_H / 2;
2557         int ymin = center_pixel - data_h/2;
2558         int ymax = center_pixel + data_h/2;
2559         CLAMP(y1, ymin, ymax);
2560         CLAMP(y2, ymin, ymax);
2561
2562         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2563         {
2564                 if(buttonpress && buttonpress != 3)
2565                 {
2566                         mwindow->session->drag_auto = current;
2567                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2568                         // Toggle Autos don't respond to vertical zoom, they always show up
2569                         // with "on" == 100% == line on top
2570                         mwindow->session->drag_start_position = current->position;
2571                         mwindow->session->drag_origin_x = cursor_x;
2572                         mwindow->session->drag_origin_y = cursor_y;
2573                 }
2574                 result = 1;
2575         }
2576
2577         if(buttonpress && buttonpress != 3 && result)
2578         {
2579 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2580                 mwindow->undo->update_undo_before();
2581         }
2582
2583         return result;
2584 }
2585
2586 // some Helpers for test_floatauto(..)
2587 // and for dragging the tangents/ctrl points
2588 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2589         float cursor_x, float cursor_y)
2590 {
2591 // Control point switched off?
2592         if( x0 == ctrl_x ) return 0.0;
2593         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2594         double x = cursor_x-x0, y = cursor_y-y0;
2595 // wrong side of ctrl handle
2596         if( x*x1 < 0 ) return 0.0;
2597 // outside handle radius
2598         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2599         double xx1 = x1*x1, yy1 = y1*y1;
2600         double xx = x*x, yy = y*y;
2601 // distance squared from cursor to cursor projected to line from ctrl to handle
2602 //   along a line perpendicular to line from ctrl to handle (closest approach)
2603 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2604         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2605         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2606 }
2607
2608
2609 inline
2610 float levered_position(float position, float ref_pos)
2611 {
2612         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2613                 return 0.0;
2614         return ref_pos / position;
2615 }
2616
2617
2618 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2619 // transforms automation value into current display coords,
2620 // dependant on current automation display range for the given kind of automation
2621 {
2622         if(!mwindow || !mwindow->edl) return 0;
2623         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2624         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2625         float automation_range = automation_max - automation_min;
2626         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2627                 return 0;
2628         return (auto_value - automation_min) / automation_range;
2629 }
2630
2631
2632
2633 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2634         int in_y, int out_x, int out_y, int center_pixel, int data_h,
2635         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2636 {
2637         int result = 0;
2638
2639         int x1 = x - HANDLE_W / 2;
2640         int x2 = x + HANDLE_W / 2;
2641         int y1 = center_pixel + y - HANDLE_W / 2;
2642         int y2 = center_pixel + y + HANDLE_W / 2;
2643         int ymin = center_pixel - data_h/2;
2644         int ymax = center_pixel + data_h/2;
2645         CLAMP(y1, ymin, ymax);
2646         CLAMP(y2, ymin, ymax);
2647
2648         int in_x1 = in_x - HANDLE_W / 2;
2649         int in_x2 = in_x + HANDLE_W / 2;
2650         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2651         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2652         CLAMP(in_y1, ymin, ymax);
2653         CLAMP(in_y2, ymin, ymax);
2654
2655         int out_x1 = out_x - HANDLE_W / 2;
2656         int out_x2 = out_x + HANDLE_W / 2;
2657         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2658         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2659         CLAMP(out_y1, ymin, ymax);
2660         CLAMP(out_y2, ymin, ymax);
2661
2662
2663 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2664 // buttonpress could be the start of a drag operation
2665 #define INIT_DRAG(POS,VAL) \
2666                 mwindow->session->drag_auto = current;      \
2667                 mwindow->session->drag_origin_x = cursor_x;  \
2668                 mwindow->session->drag_origin_y = cursor_y;   \
2669                 mwindow->session->drag_start_position = (POS); \
2670                 mwindow->session->drag_start_percentage = (VAL);
2671
2672 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2673
2674
2675 // without modifier we are manipulating the automation node
2676 // with ALT it's about dragging only the value of the node
2677 // with SHIFT the value snaps to the value of neighbouring nodes
2678 // CTRL indicates we are rather manipulating the tangent(s) of the node
2679
2680         if(!ctrl_down())
2681         {
2682                 if( WITHIN(x1,x2,y1,y2))
2683                 {       // cursor hits node
2684                         result = 1;
2685
2686                         if(buttonpress && (buttonpress != 3))
2687                         {
2688                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2689                                 mwindow->session->drag_handle = 0;
2690                 }       }
2691         }
2692         else // ctrl_down()
2693         {
2694                 if( WITHIN(x1,x2,y1,y2))
2695                 {
2696                         result = 1;
2697                         if(buttonpress && (buttonpress != 3))
2698                         {
2699                                 // could be ctrl-click or ctrl-drag
2700                                 // click would cycle through tangent modes
2701                                 ((FloatAuto*)current)->toggle_curve_mode();
2702
2703                                 // drag will start dragging the tangent, if applicable
2704                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2705                                 mwindow->session->drag_handle = 0;
2706                         }
2707                 }
2708
2709                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2710
2711 // Test in control
2712                 if( in_x != x && current->position > 0 &&
2713                         (FloatAuto::FREE == current->curve_mode ||
2714                          FloatAuto::TFREE == current->curve_mode))
2715 // act on in control handle only if
2716 // tangent is significant and is editable (not automatically choosen)
2717                 {
2718                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2719  // either cursor in ctrl-point handle or cursor on tangent line
2720                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2721                                 result = 1;
2722                                 if(buttonpress && (buttonpress != 3)) {
2723                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2724 //                                      lever = 1.0;
2725                                         mwindow->session->drag_handle = 1;
2726                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2727                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2728                                                   value_to_percentage(new_invalue, autogrouptype))
2729                                 }
2730                         }
2731                 }
2732
2733 // Test out control
2734                 if(out_x != x &&
2735                         (FloatAuto::FREE == current->curve_mode ||
2736                          FloatAuto::TFREE == current->curve_mode))
2737 // act on out control only if tangent is significant and is editable
2738                 {
2739                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2740                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2741                                 result = 1;
2742                                 if(buttonpress && (buttonpress != 3)) {
2743                                         if(lever == 0.0) lever=1.0;
2744 //                                      lever = 1.0;
2745                                         mwindow->session->drag_handle = 2;
2746                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2747                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2748                                                   value_to_percentage(new_outvalue, autogrouptype))
2749                                 }
2750                         }
2751                 }
2752         } // end ctrl_down()
2753
2754 #undef WITHIN
2755 #undef INIT_DRAG
2756
2757 // if(buttonpress)
2758 // 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",
2759 // mwindow->session->drag_handle,
2760 // ctrl_down(),
2761 // cursor_x,
2762 // cursor_y,
2763 // x1, x2, y1, y2);
2764         if(buttonpress && (buttonpress != 3) && result)
2765         {
2766                 mwindow->undo->update_undo_before();
2767         }
2768
2769         return result;
2770 }
2771
2772 static int is_linear(FloatAuto *prev, FloatAuto *next)
2773 {
2774         if( !prev || !next ) return 1;
2775         if( prev->curve_mode == FloatAuto::LINEAR ) return 1;
2776         int64_t ipos = prev->get_control_in_position();
2777         int64_t opos = prev->get_control_out_position();
2778         if( !ipos && !opos ) return 1;
2779         if( !ipos || !opos ) return 0;
2780         float ival = prev->get_control_in_value();
2781         float oval = prev->get_control_out_value();
2782         float cval = prev->get_value(), nval = next->get_value();
2783         if( !ival && !oval && EQUIV(cval, nval) ) return 1;
2784         float ig = ival / ipos, og = oval / opos;
2785         int64_t cpos = prev->position, npos = next->position;
2786         float g = (nval - cval) / (npos - cpos);
2787         if( EQUIV(ig, g) && EQUIV(og, g) ) return 1;
2788         return 0;
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         int ytop = center_pixel - yscale / 2;
2823         int ybot = center_pixel + yscale / 2 - 1;
2824         y1 += center_pixel;  y2 += center_pixel;
2825         if( (y1 < ytop && y1 >= ybot) && (y2 < ytop || y2 >= ybot) ) return;
2826 // check for line draw
2827         if( is_linear(previous, next) ) {
2828                 draw_line(x1, y1, x2, y2);
2829                 return;
2830         }
2831
2832 // Solve bezier equation for either every pixel or a certain large number of
2833 // points.
2834
2835 // Not using slope intercept
2836         x1 = MAX(0, x1);
2837         draw_pixel(x1, y1);
2838         int prev_y = y1;
2839
2840 // Call by reference fails for some reason here
2841         FloatAuto *previous1 = previous, *next1 = next;
2842         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2843         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2844         float automation_range = automation_max - automation_min;
2845         for( int x=x1; x<x2; ++x ) {
2846 // Interpolate value between frames
2847                 X_TO_FLOATLINE(x)
2848
2849                 if( /* x > x1 && */ y >= ytop && y < ybot ) {
2850                         int x1 = x-1, y1 = prev_y, x2 = x, y2 = y;
2851                         if( abs(y2-y1) < 2 )
2852                                 draw_pixel(x2, y2);
2853                         else
2854                                 draw_bline(x1, y1, x2, y2);
2855                 }
2856                 prev_y = y;
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 title_h = mwindow->theme->title_h;
3074         double data_h = track->data_h;
3075         double ys = has_assets ? data_h : has_titles ? title_bg_h : 0;
3076         double dy = has_titles ?
3077                 ( has_assets ? title_bg_h + data_h/2 : title_bg_h/2) :
3078                 ( has_assets ? data_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 += track->data_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)  + xS(TOOLTIP_MARGIN) * 2;
3692                 int th = get_text_height(font, text) + yS(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 += xS(TOOLTIP_MARGIN);
3701                 ay += yS(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, 0, 0, get_w(), get_h(), 0, 0);
3713
3714 // In/Out points
3715         draw_inout_points();
3716
3717 // Transitions
3718         draw_transitions();
3719
3720 // Plugins
3721         draw_plugins();
3722         draw_hard_edges();
3723
3724 // Loop points
3725         draw_loop_points();
3726         draw_brender_range();
3727
3728 // Highlighted areas
3729         draw_highlighting();
3730
3731 // Automation
3732         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3733
3734 // Selection cursor
3735         if(pane->cursor) pane->cursor->restore(1);
3736
3737 // Handle dragging
3738         draw_drag_handle();
3739
3740 // Playback cursor
3741         draw_playback_cursor();
3742
3743         draw_keyframe_reticle();
3744
3745         show_window(0);
3746 }
3747
3748 int TrackCanvas::activate()
3749 {
3750         if(!active)
3751         {
3752 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3753 //BC_Signals::dump_stack();
3754                 get_top_level()->deactivate();
3755                 active = 1;
3756                 set_active_subwindow(this);
3757                 pane->cursor->activate();
3758                 gui->focused_pane = pane->number;
3759         }
3760         return 0;
3761 }
3762
3763 int TrackCanvas::deactivate()
3764 {
3765         if(active)
3766         {
3767                 active = 0;
3768                 pane->cursor->deactivate();
3769         }
3770         return 0;
3771 }
3772
3773
3774 void TrackCanvas::update_drag_handle()
3775 {
3776         double new_position;
3777         int cursor_x = get_cursor_x();
3778
3779         new_position =
3780                 (double)(cursor_x +
3781                 mwindow->edl->local_session->view_start[pane->number]) *
3782                 mwindow->edl->local_session->zoom_sample /
3783                 mwindow->edl->session->sample_rate;
3784
3785         new_position =
3786                 mwindow->edl->align_to_frame(new_position, 0);
3787
3788         if( ctrl_down() && alt_down() ) {
3789 #define snapper(v) do { \
3790         double pos = (v); \
3791         if( pos < 0 ) break; \
3792         double dist = fabs(new_position - pos); \
3793         if( dist >= snap_min ) break; \
3794         snap_position = pos;  snap_min = dist; \
3795 } while(0)
3796                 double snap_position = new_position;
3797                 double snap_min = DBL_MAX;
3798                 if( mwindow->edl->local_session->inpoint_valid() )
3799                         snapper(mwindow->edl->local_session->get_inpoint());
3800                 if( mwindow->edl->local_session->outpoint_valid() )
3801                         snapper(mwindow->edl->local_session->get_outpoint());
3802                 snapper(mwindow->edl->prev_edit(new_position));
3803                 snapper(mwindow->edl->next_edit(new_position));
3804                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3805                 if( prev_label ) snapper(prev_label->position);
3806                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3807                 if( next_label ) snapper(next_label->position);
3808                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3809                         mwindow->edl->local_session->zoom_sample -
3810                         mwindow->edl->local_session->view_start[pane->number];
3811                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3812                         snapped = 1;
3813                         new_position = snap_position;
3814                 }
3815 #undef snapper
3816         }
3817
3818         if(new_position != mwindow->session->drag_position)
3819         {
3820                 mwindow->session->drag_position = new_position;
3821                 gui->mainclock->update(new_position);
3822                 timebar_position = new_position;
3823                 gui->update_timebar(0);
3824
3825                 EDL *edl = new EDL;
3826                 edl->create_objects();
3827                 edl->copy_all(mwindow->edl);
3828                 MainSession *session = mwindow->session;
3829                 int handle_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3830                 edl->modify_edithandles(session->drag_start,
3831                         session->drag_position, session->drag_handle, handle_mode,
3832                         edl->session->labels_follow_edits,
3833                         edl->session->plugins_follow_edits,
3834                         edl->session->autos_follow_edits,
3835                         !session->drag_edit ? 0 : session->drag_edit->group_id);
3836
3837                 double position = -1;
3838                 int show_edge = !session->drag_handle ? 1 : 2;
3839                 switch( handle_mode ) {
3840                 case MOVE_RIPPLE:
3841                 case MOVE_EDGE:
3842                         position = session->drag_handle ?
3843                                 session->drag_position : session->drag_start;
3844                         show_edge = 3 - show_edge;
3845                         break;
3846                 case MOVE_ROLL:
3847                 case MOVE_SLIDE:
3848                         position = session->drag_position;
3849                         break;
3850                 case MOVE_SLIP:
3851                         position = session->drag_start;
3852                         show_edge = 3 - show_edge;
3853                         break;
3854                 }
3855
3856                 if( position < 0 ) position = 0;
3857                 Track *track = session->drag_handle_track();
3858                 int64_t pos = track->to_units(position, 0);
3859                 render_handle_frame(edl, pos, shift_down() ? 0 : show_edge);
3860                 edl->remove_user();
3861         }
3862 }
3863
3864 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3865 {
3866         int result = 0;
3867         int64_t left = pos-1;
3868         if( left < 0 ) left = 0;
3869         switch( mode ) {
3870         case 0: {
3871                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3872                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3873                 TransportCommand command;
3874                 command.command = CURRENT_FRAME;
3875                 command.get_edl()->copy_all((EDL *)edl);
3876                 command.change_type = CHANGE_ALL;
3877                 command.realtime = 0;
3878                 Preferences *preferences = mwindow->preferences;
3879                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3880                 CICache *video_cache = new CICache(preferences);
3881                 render_engine->set_vcache(video_cache);
3882                 render_engine->arm_command(&command);
3883                 VRender *vrender = render_engine->vrender;
3884                 result = vrender &&
3885                         !vrender->process_buffer(&vlt, left, 0) &&
3886                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3887                 delete render_engine;
3888                 delete video_cache;
3889                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3890                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3891                 float ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2;
3892                 canvas->get_transfers(edl, ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2);
3893                 float cw = canvas->w/2, ch = canvas->h/2;
3894                 float cdx = (cx2 - cx1)/2, cdy = (cy2 - cy1)/2;
3895                 int cx = cx1/2, cy = cy1/2 + ch/2;
3896                 int ow = ox2 - ox2, oh = oy2 - oy1;
3897                 BC_WindowBase *window = canvas->get_canvas();
3898                 window->set_color(BLACK);
3899                 window->clear_box(0,0, window->get_w(),window->get_h());
3900                 window->draw_vframe(&vlt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);  cx += cw;
3901                 window->draw_vframe(&vrt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);
3902                 window->flash(1);
3903                 mwindow->cwindow->gui->unlock_window();
3904                 break; }
3905         case 1:
3906         case 2: {
3907                 Track *track = mwindow->session->drag_handle_track();
3908                 double position = track->from_units(mode == 1 ? left : pos);
3909                 if( position < 0 ) position = 0;
3910                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3911                 if( playback_engine->is_playing_back )
3912                         playback_engine->stop_playback(1);
3913                 edl->local_session->set_selectionstart(position);
3914                 edl->local_session->set_selectionend(position);
3915                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3916                 break; }
3917         }
3918         return result;
3919 }
3920
3921 int TrackCanvas::update_drag_edit()
3922 {
3923         int result = 0;
3924
3925
3926
3927         return result;
3928 }
3929
3930 int TrackCanvas::get_drag_values(float *percentage,
3931         int64_t *position,
3932         int do_clamp,
3933         int cursor_x,
3934         int cursor_y,
3935         Auto *current)
3936 {
3937         //int x = cursor_x - mwindow->session->drag_origin_x;
3938         //int y = cursor_y - mwindow->session->drag_origin_y;
3939         *percentage = 0;
3940         *position = 0;
3941
3942         if(!current->autos->track->record) return 1;
3943         double view_start;
3944         double unit_start;
3945         double view_end;
3946         double unit_end;
3947         double yscale;
3948         int center_pixel;
3949         double zoom_sample;
3950         double zoom_units;
3951
3952         calculate_viewport(current->autos->track,
3953                 view_start,
3954                 unit_start,
3955                 view_end,
3956                 unit_end,
3957                 yscale,
3958                 center_pixel,
3959                 zoom_sample,
3960                 zoom_units);
3961
3962         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3963                 yscale +
3964                 mwindow->session->drag_start_percentage;
3965         if(do_clamp) CLAMP(*percentage, 0, 1);
3966
3967         *position = Units::to_int64(zoom_units *
3968                 (cursor_x - mwindow->session->drag_origin_x) +
3969                 mwindow->session->drag_start_position + 0.5);
3970
3971         if((do_clamp) && *position < 0) *position = 0;
3972         return 0;
3973 }
3974
3975
3976 #define UPDATE_DRAG_HEAD(do_clamp) \
3977         int result = 0, center_pixel; \
3978         if(!current->autos->track->record) return 0; \
3979         double view_start, unit_start, view_end, unit_end; \
3980         double yscale, zoom_sample, zoom_units; \
3981  \
3982         calculate_viewport(current->autos->track,  \
3983                 view_start, unit_start, view_end, unit_end, \
3984                 yscale, center_pixel, zoom_sample, zoom_units); \
3985  \
3986         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3987                 yscale +  mwindow->session->drag_start_percentage; \
3988         if(do_clamp) CLAMP(percentage, 0, 1); \
3989  \
3990         int64_t position = Units::to_int64(zoom_units * \
3991                 (cursor_x - mwindow->session->drag_origin_x) + \
3992                 mwindow->session->drag_start_position); \
3993         if((do_clamp) && position < 0) position = 0;
3994
3995
3996 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3997 {
3998         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
3999
4000         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
4001         int x = cursor_x - mwindow->session->drag_origin_x;
4002         int y = cursor_y - mwindow->session->drag_origin_y;
4003         float value, old_value;
4004
4005         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
4006 // not really editing the node, rather start editing the curve
4007 // tangent is editable and drag movement is significant
4008                 if( (FloatAuto::FREE == current->curve_mode ||
4009                      FloatAuto::TFREE==current->curve_mode) &&
4010                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
4011                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
4012         }
4013
4014         switch(mwindow->session->drag_handle) {
4015         case 0: // Center
4016 // Snap to nearby values
4017                 old_value = current->get_value();
4018                 if(shift_down()) {
4019                         double value1, value2, distance1=-1, distance2=-1;
4020
4021                         if(current->previous) {
4022                                 int autogrouptype = current->previous->autos->autogrouptype;
4023                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4024                                 value1 = ((FloatAuto*)current->previous)->get_value();
4025                                 distance1 = fabs(value - value1);
4026                                 current->set_value(value1);
4027                         }
4028
4029                         if(current->next) {
4030                                 int autogrouptype = current->next->autos->autogrouptype;
4031                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4032                                 value2 = ((FloatAuto*)current->next)->get_value();
4033                                 distance2 = fabs(value - value2);
4034                                 if(!current->previous || distance2 < distance1) {
4035                                         current->set_value(value2);
4036                                 }
4037                         }
4038
4039                         if(!current->previous && !current->next) {
4040                                 current->set_value( ((FloatAutos*)current->autos)->default_);
4041                         }
4042                         value = current->get_value();
4043                 }
4044                 else {
4045                         int autogrouptype = current->autos->autogrouptype;
4046                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
4047                 }
4048
4049                 if(alt_down() && !shift_down())
4050 // ALT constrains movement: fixed position, only changing the value
4051                         position = mwindow->session->drag_start_position;
4052
4053                 if(value != old_value || position != current->position) {
4054                         result = 1;
4055                         float change = value - old_value;
4056                         current->adjust_to_new_coordinates(position, value);
4057                         update_ganged_autos(change, current->autos->track, current);
4058                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4059                         show_message(current, color, ", %.2f", current->get_value());
4060                 }
4061                 break;
4062
4063 // In control
4064         case 1: {
4065                 int autogrouptype = current->autos->autogrouptype;
4066                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4067                 if(value != current->get_control_in_value())
4068                 {
4069                         result = 1;
4070                         // note: (position,value) need not be at the location of the ctrl point,
4071                         // but could be somewhere in between on the curve (or even outward or
4072                         // on the opposit side). We set the new control point such as
4073                         // to point the curve through (position,value)
4074                         current->set_control_in_value(
4075                                 value * levered_position(position - current->position,
4076                                                          current->get_control_in_position()));
4077                         update_ganged_autos(0, current->autos->track, current);
4078                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4079                         show_message(current, color, ", %.2f", current->get_control_in_value());
4080                 }
4081                 break; }
4082
4083 // Out control
4084         case 2: {
4085                 int autogrouptype = current->autos->autogrouptype;
4086                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4087                 if(value != current->get_control_out_value()) {
4088                         result = 1;
4089                         current->set_control_out_value(
4090                                 value * levered_position(position - current->position,
4091                                                          current->get_control_out_position()));
4092                         update_ganged_autos(0, current->autos->track, current);
4093                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4094                         show_message(current, color, ", %.2f", current->get_control_out_value());
4095                 }
4096                 break; }
4097         }
4098
4099         return result;
4100 }
4101
4102 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4103 {
4104         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4105
4106         UPDATE_DRAG_HEAD(1);
4107         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4108
4109         if(value != current->value || position != current->position)
4110         {
4111                 result = 1;
4112                 current->value = value;
4113                 current->position = position;
4114                 show_message(current, -1, ", %d", current->value);
4115         }
4116
4117         return result;
4118 }
4119
4120 // Autos which can't change value through dragging.
4121
4122 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4123 {
4124         Auto *current = (Auto*)mwindow->session->drag_auto;
4125
4126         UPDATE_DRAG_HEAD(1)
4127         if(position != current->position)
4128         {
4129                 result = 1;
4130                 current->position = position;
4131                 show_message(current, -1, "");
4132
4133                 double position_f = current->autos->track->from_units(current->position);
4134                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4135                         mwindow->edl->local_session->get_selectionend(1)) /
4136                         2;
4137                 if(!shift_down())
4138                 {
4139                         mwindow->edl->local_session->set_selectionstart(position_f);
4140                         mwindow->edl->local_session->set_selectionend(position_f);
4141                 }
4142                 else
4143                 if(position_f < center_f)
4144                 {
4145                         mwindow->edl->local_session->set_selectionstart(position_f);
4146                 }
4147                 else
4148                         mwindow->edl->local_session->set_selectionend(position_f);
4149         }
4150
4151
4152         return result;
4153 }
4154
4155 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4156 {
4157         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4158
4159         UPDATE_DRAG_HEAD(1)
4160         if(position != current->position)
4161         {
4162 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4163                 Track *track = current->autos->track;
4164                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4165                 PluginSet *pluginset;
4166                 Plugin *plugin = 0;
4167 // figure out the correct pluginset & correct plugin
4168                 int found = 0;
4169                 for(int i = 0; i < track->plugin_set.total; i++)
4170                 {
4171                         pluginset = track->plugin_set.values[i];
4172                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4173                         {
4174                                 KeyFrames *keyframes = plugin->keyframes;
4175                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4176                                         currentkeyframe;
4177                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4178                                 {
4179                                         if (currentkeyframe == current)
4180                                         {
4181                                                 found = 1;
4182                                                 break;
4183                                         }
4184
4185                                 }
4186                                 if (found) break;
4187                         }
4188                         if (found) break;
4189                 }
4190
4191                 mwindow->session->plugin_highlighted = plugin;
4192                 mwindow->session->track_highlighted = track;
4193                 result = 1;
4194                 current->position = position;
4195                 show_message(current, -1, "");
4196
4197                 double position_f = current->autos->track->from_units(current->position);
4198                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4199                         mwindow->edl->local_session->get_selectionend(1)) /
4200                         2;
4201                 if(!shift_down())
4202                 {
4203                         mwindow->edl->local_session->set_selectionstart(position_f);
4204                         mwindow->edl->local_session->set_selectionend(position_f);
4205                 }
4206                 else
4207                 if(position_f < center_f)
4208                 {
4209                         mwindow->edl->local_session->set_selectionstart(position_f);
4210                 }
4211                 else
4212                         mwindow->edl->local_session->set_selectionend(position_f);
4213         }
4214
4215
4216         return result;
4217 }
4218
4219 void TrackCanvas::update_drag_caption()
4220 {
4221         switch(mwindow->session->current_operation)
4222         {
4223                 case DRAG_FADE:
4224
4225                         break;
4226         }
4227 }
4228
4229
4230
4231 int TrackCanvas::cursor_update(int in_motion)
4232 {
4233         int result = 0;
4234         int cursor_x = 0;
4235         int cursor_y = 0;
4236         int update_clock = 0;
4237         int update_zoom = 0;
4238         int update_scroll = 0;
4239         int update_overlay = 0;
4240         int update_cursor = 0;
4241         int rerender = 0;
4242         double position = 0.;
4243 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4244
4245 // Default cursor
4246         int new_cursor =
4247                 arrow_mode() ? ARROW_CURSOR :
4248                 ibeam_mode() ? IBEAM_CURSOR : 0;
4249
4250         switch(mwindow->session->current_operation)
4251         {
4252                 case DRAG_EDITHANDLE1:
4253 // Outside threshold.  Upgrade status
4254                         if(active)
4255                         {
4256                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4257                                 {
4258                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
4259                                         update_overlay = 1;
4260                                 }
4261                         }
4262                         break;
4263
4264                 case DRAG_EDITHANDLE2:
4265                         if(active)
4266                         {
4267                                 update_drag_handle();
4268                                 update_overlay = 1;
4269                         }
4270                         break;
4271
4272                 case DRAG_PLUGINHANDLE1:
4273                         if(active)
4274                         {
4275                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4276                                 {
4277                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4278                                         update_overlay = 1;
4279                                 }
4280                         }
4281                         break;
4282
4283                 case DRAG_PLUGINHANDLE2:
4284                         if(active)
4285                         {
4286                                 update_drag_handle();
4287                                 update_overlay = 1;
4288                         }
4289                         break;
4290
4291 // Rubber band curves
4292                 case DRAG_FADE:
4293                 case DRAG_SPEED:
4294                 case DRAG_CZOOM:
4295                 case DRAG_PZOOM:
4296                 case DRAG_CAMERA_X:
4297                 case DRAG_CAMERA_Y:
4298                 case DRAG_CAMERA_Z:
4299                 case DRAG_PROJECTOR_X:
4300                 case DRAG_PROJECTOR_Y:
4301                 case DRAG_PROJECTOR_Z:
4302                         if(active) rerender = update_overlay =
4303                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4304                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4305                                 mwindow->speed_after(!in_motion ? 1 : 0);
4306                         break;
4307
4308                 case DRAG_PLAY:
4309                         if(active) rerender = update_overlay =
4310                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4311                         break;
4312
4313                 case DRAG_MUTE:
4314                         if(active) rerender = update_overlay =
4315                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4316                         break;
4317
4318 // Keyframe icons are sticky
4319                 case DRAG_PAN_PRE:
4320                 case DRAG_MASK_PRE:
4321                 case DRAG_MODE_PRE:
4322                 case DRAG_PLUGINKEY_PRE:
4323                         if(active) {
4324                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4325                                         mwindow->session->current_operation++;
4326                                         update_overlay = 1;
4327
4328                                         mwindow->undo->update_undo_before();
4329                                 }
4330                         }
4331                         break;
4332
4333                 case DRAG_PAN:
4334                 case DRAG_MASK:
4335                 case DRAG_MODE:
4336                         if(active) rerender = update_overlay =
4337                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4338                         break;
4339
4340                 case DRAG_PLUGINKEY:
4341                         if(active) rerender = update_overlay =
4342                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4343                         break;
4344
4345                 case SELECT_REGION:
4346                         if(active) {
4347                                 cursor_x = get_cursor_x();
4348                                 cursor_y = get_cursor_y();
4349                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4350                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4351
4352                                 position = mwindow->edl->align_to_frame(position, 0);
4353                                 position = MAX(position, 0);
4354
4355                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4356                                 double end = mwindow->edl->local_session->get_selectionend(1);
4357                                 if(position < selection_midpoint) {
4358                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4359                                         mwindow->edl->local_session->set_selectionstart(position);
4360                                 }
4361                                 else {
4362                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4363                                         mwindow->edl->local_session->set_selectionend(position);
4364                                 }
4365         // Que the CWindow
4366                                 gui->unlock_window();
4367                                 int dir =
4368                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4369                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4370                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4371                                 gui->lock_window("TrackCanvas::cursor_update 1");
4372         // Update the faders
4373                                 mwindow->update_plugin_guis();
4374                                 gui->update_patchbay();
4375
4376                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4377
4378                                 gui->hide_cursor(0);
4379                                 gui->draw_cursor(1);
4380                                 gui->update_timebar(0);
4381                                 gui->flash_canvas(1);
4382                                 result = 1;
4383                                 update_clock = 1;
4384                                 update_zoom = 1;
4385                                 update_scroll = 1;
4386                         }
4387                         break;
4388
4389                 case DROP_TARGETING:
4390                         new_cursor = GRABBED_CURSOR;
4391                         result = 1;
4392                         break;
4393
4394                 default:
4395                         if(is_event_win() && cursor_inside()) {
4396 // Update clocks
4397                                 cursor_x = get_cursor_x();
4398                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4399                                 position = mwindow->edl->align_to_frame(position, 0);
4400                                 update_clock = 1;
4401 // set all timebars
4402                                 for(int i = 0; i < TOTAL_PANES; i++)
4403                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4404
4405 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4406                                 gui->update_timebar(0);
4407 // Update cursor
4408                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4409                                                 0, new_cursor, update_cursor)) break;
4410                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4411                                         0, 0, new_cursor, update_cursor, rerender)) break;
4412                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4413                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4414 // Plugin boundaries
4415                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4416                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4417                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4418                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4419                         }
4420                         break;
4421         }
4422
4423 //printf("TrackCanvas::cursor_update 1\n");
4424         if(update_cursor && new_cursor != get_cursor())
4425         {
4426                 set_cursor(new_cursor, 0, 1);
4427         }
4428
4429 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4430         if(rerender && render_timer->get_difference() > 0.25 ) {
4431                 render_timer->update();
4432                 mwindow->restart_brender();
4433                 mwindow->sync_parameters(CHANGE_PARAMS);
4434                 mwindow->update_plugin_guis();
4435                 gui->unlock_window();
4436                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4437                 gui->lock_window("TrackCanvas::cursor_update 2");
4438         }
4439         if(rerender) {
4440 // Update faders
4441                 gui->update_patchbay();
4442         }
4443
4444
4445         if(update_clock) {
4446                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4447                         gui->mainclock->update(position);
4448         }
4449
4450         if(update_zoom) {
4451                 gui->zoombar->update();
4452         }
4453
4454         if(update_scroll) {
4455                 if(!drag_scroll &&
4456                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4457                         start_dragscroll();
4458                 else
4459                 if(drag_scroll &&
4460                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4461                         stop_dragscroll();
4462         }
4463
4464         if(update_overlay) {
4465                 gui->draw_overlays(1);
4466         }
4467
4468 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4469         return result;
4470 }
4471
4472 int TrackCanvas::cursor_motion_event()
4473 {
4474         return cursor_update(1);
4475 }
4476
4477 void TrackCanvas::start_dragscroll()
4478 {
4479         if(!drag_scroll) {
4480                 drag_scroll = 1;
4481                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4482 //printf("TrackCanvas::start_dragscroll 1\n");
4483         }
4484 }
4485
4486 void TrackCanvas::stop_dragscroll()
4487 {
4488         if(drag_scroll) {
4489                 drag_scroll = 0;
4490                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4491 //printf("TrackCanvas::stop_dragscroll 1\n");
4492         }
4493 }
4494
4495 int TrackCanvas::repeat_event(int64_t duration)
4496 {
4497         if(!drag_scroll) return 0;
4498         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4499
4500         int sample_movement = 0;
4501         int track_movement = 0;
4502         int64_t x_distance = 0;
4503         int64_t y_distance = 0;
4504         double position = 0;
4505         int result = 0;
4506
4507         switch(mwindow->session->current_operation) {
4508                 case SELECT_REGION:
4509 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4510                 if(get_cursor_x() > get_w()) {
4511                                 x_distance = get_cursor_x() - get_w();
4512                                 sample_movement = 1;
4513                 }
4514                 else if(get_cursor_x() < 0) {
4515                         x_distance = get_cursor_x();
4516                         sample_movement = 1;
4517                 }
4518
4519                 if(get_cursor_y() > get_h()) {
4520                         y_distance = get_cursor_y() - get_h();
4521                         track_movement = 1;
4522                 }
4523                 else if(get_cursor_y() < 0) {
4524                         y_distance = get_cursor_y();
4525                         track_movement = 1;
4526                 }
4527                 result = 1;
4528                 break;
4529         }
4530
4531         if(sample_movement) {
4532                 position = (double)(get_cursor_x() +
4533                         mwindow->edl->local_session->view_start[pane->number] +
4534                         x_distance) *
4535                         mwindow->edl->local_session->zoom_sample /
4536                         mwindow->edl->session->sample_rate;
4537                 position = mwindow->edl->align_to_frame(position, 0);
4538                 position = MAX(position, 0);
4539
4540 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4541                 switch(mwindow->session->current_operation) {
4542                 case SELECT_REGION:
4543                         if(position < selection_midpoint) {
4544                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4545                                 mwindow->edl->local_session->set_selectionstart(position);
4546 // Que the CWindow
4547                                 gui->unlock_window();
4548                                 mwindow->cwindow->update(1, 0, 0);
4549                                 gui->lock_window("TrackCanvas::repeat_event");
4550 // Update the faders
4551                                 mwindow->update_plugin_guis();
4552                                 gui->update_patchbay();
4553                         }
4554                         else {
4555                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4556                                 mwindow->edl->local_session->set_selectionend(position);
4557 // Don't que the CWindow
4558                         }
4559                         break;
4560                 }
4561
4562                 mwindow->samplemovement(
4563                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4564                         pane->number);
4565         }
4566
4567         if(track_movement) {
4568                 mwindow->trackmovement(y_distance, pane->number);
4569         }
4570
4571         return result;
4572 }
4573
4574 int TrackCanvas::button_release_event()
4575 {
4576         int redraw = -1, update_overlay = 0;
4577         int result = 0, load_flags = 0;
4578
4579 // printf("TrackCanvas::button_release_event %d\n",
4580 // mwindow->session->current_operation);
4581         if(active) {
4582                 switch(mwindow->session->current_operation) {
4583                 case DRAG_EDITHANDLE2:
4584                         mwindow->session->current_operation = NO_OPERATION;
4585                         drag_scroll = 0;
4586                         result = 1;
4587
4588                         end_edithandle_selection();
4589                         break;
4590
4591                 case DRAG_EDITHANDLE1:
4592                         mwindow->session->current_operation = NO_OPERATION;
4593                         drag_scroll = 0;
4594                         result = 1;
4595                         break;
4596
4597                 case DRAG_PLUGINHANDLE2:
4598                         mwindow->session->current_operation = NO_OPERATION;
4599                         drag_scroll = 0;
4600                         result = 1;
4601
4602                         end_pluginhandle_selection();
4603                         break;
4604
4605                 case DRAG_PLUGINHANDLE1:
4606                         mwindow->session->current_operation = NO_OPERATION;
4607                         drag_scroll = 0;
4608                         result = 1;
4609                         break;
4610
4611                 case DRAG_SPEED:
4612                         redraw = FORCE_REDRAW;
4613                         load_flags |= LOAD_EDITS;
4614                 case DRAG_FADE:
4615 // delete the drag_auto_gang first and remove out of order keys
4616                         clear_ganged_autos();
4617                 case DRAG_CZOOM:
4618                 case DRAG_PZOOM:
4619                 case DRAG_PLAY:
4620                 case DRAG_MUTE:
4621                 case DRAG_MASK:
4622                 case DRAG_MODE:
4623                 case DRAG_PAN:
4624                 case DRAG_CAMERA_X:
4625                 case DRAG_CAMERA_Y:
4626                 case DRAG_CAMERA_Z:
4627                 case DRAG_PROJECTOR_X:
4628                 case DRAG_PROJECTOR_Y:
4629                 case DRAG_PROJECTOR_Z:
4630                 case DRAG_PLUGINKEY:
4631                         load_flags |= LOAD_AUTOMATION;
4632                         mwindow->session->current_operation = NO_OPERATION;
4633                         mwindow->session->drag_handle = 0;
4634 // Remove any out-of-order keyframe
4635                         if(mwindow->session->drag_auto) {
4636                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4637                                                 mwindow->session->drag_auto);
4638 //                              mwindow->session->drag_auto->autos->optimize();
4639                                 update_overlay = 1;
4640                         }
4641
4642                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4643                         result = 1;
4644                         break;
4645
4646                 case DRAG_EDIT:
4647                 case DRAG_GROUP:
4648                 case DRAG_AEFFECT_COPY:
4649                 case DRAG_VEFFECT_COPY:
4650 // Trap in drag stop
4651                         break;
4652
4653                 case DROP_TARGETING: {
4654                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4655                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4656                         drag_cursor_motion(cursor_x, cursor_y,
4657                                 &track, &edit, &pluginset, &plugin);
4658                         double position =
4659                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4660                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4661                         mwindow->session->current_operation = NO_OPERATION;
4662                         result = 1;
4663                         break; }
4664
4665                 case GROUP_TOGGLE: {
4666                         Edit *edit = mwindow->session->drag_edit;
4667                         if( edit ) {
4668                                 if( shift_down() && edit->is_selected ) {
4669                                         if( edit->group_id > 0 ) {
4670                                                 mwindow->edl->tracks->clear_selected_edits();
4671                                                 mwindow->edl->tracks->del_group(edit->group_id);
4672                                         }
4673                                         else {
4674                                                 int id = mwindow->session->group_number++;
4675                                                 mwindow->edl->tracks->new_group(id);
4676                                         }
4677                                         redraw = 0;
4678                                 }
4679                                 else {
4680                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4681                                                 mwindow->edl->tracks->clear_selected_edits();
4682                                         edit->set_selected(-1);
4683                                 }
4684                         }
4685                         mwindow->session->current_operation = NO_OPERATION;
4686                         update_overlay = 1;
4687                         result = 1;
4688                         drag_scroll = 0;
4689                         break; }
4690
4691                 default:
4692                         if( mwindow->session->current_operation ) {
4693 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4694 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4695 //                              }
4696
4697                                 mwindow->session->current_operation = NO_OPERATION;
4698                                 drag_scroll = 0;
4699                                 //result = 0;
4700                                 break;
4701                         }
4702                         break;
4703                 }
4704         }
4705
4706         if( mwindow->edl->local_session->zoombar_showautocolor >= 0 )
4707                 mwindow->gui->zoombar->update_autozoom(-1);
4708
4709         if (result)
4710                 cursor_update(0);
4711
4712         if(update_overlay) {
4713                 gui->draw_overlays(1);
4714         }
4715         if(redraw >= 0) {
4716                 gui->draw_canvas(redraw, 0);
4717                 gui->flash_canvas(1);
4718         }
4719         return result;
4720 }
4721
4722 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4723         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4724 {
4725         Edit *edit_result = 0;
4726         int handle_result = -1;
4727         int result = 0;
4728
4729         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4730                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4731                         int64_t edit_x, edit_y, edit_w, edit_h;
4732                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4733
4734                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4735                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4736                                 if( cursor_x < edit_x + HANDLE_W ) {
4737                                         edit_result = edit;
4738                                         handle_result = 0;
4739                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4740                                             track->show_assets() ) {
4741                                                 new_cursor = DOWNLEFT_RESIZE;
4742                                                 if( button_press == LEFT_BUTTON )
4743                                                         result = -1;
4744                                         }
4745                                         else
4746                                                 result = 1;
4747                                 }
4748                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4749                                         edit_result = edit;
4750                                         handle_result = 1;
4751                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4752                                             track->show_assets() ) {
4753                                                 new_cursor = DOWNRIGHT_RESIZE;
4754                                                 if( button_press == LEFT_BUTTON )
4755                                                         result = -1;
4756                                         }
4757                                         else
4758                                                 result = 1;
4759                                 }
4760                         }
4761                 }
4762         }
4763
4764         if( result > 0 ) {
4765                 int group_id = edit_result->group_id;
4766                 if( group_id > 0 ) {
4767                         Track *track = edit_result->track;
4768                         Edit *left = 0, *right = 0;
4769                         double start = DBL_MAX, end = DBL_MIN;
4770                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4771                                 if( edit->group_id != group_id ) continue;
4772                                 double edit_start = edit->track->from_units(edit->startproject);
4773                                 if( edit_start < start ) { start = edit_start;  left = edit; }
4774                                 double edit_end = edit->track->from_units(edit->startproject+edit->length);
4775                                 if( edit_end > end ) { end = edit_end;  right = edit; }
4776                         }
4777                         Edit *edit = !handle_result ? left : right;
4778                         if( edit != edit_result )
4779                                 result = 0;
4780                 }
4781         }
4782
4783         update_cursor = 1;
4784         if( result > 0 ) {
4785                 double position = 0;
4786                 if( handle_result == 0 ) {
4787                         position = edit_result->track->from_units(edit_result->startproject);
4788                         new_cursor = LEFT_CURSOR;
4789                 }
4790                 else if( handle_result == 1 ) {
4791                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4792                         new_cursor = RIGHT_CURSOR;
4793                 }
4794
4795 // Reposition cursor
4796                 if( button_press ) {
4797                         mwindow->session->drag_edit = edit_result;
4798                         mwindow->session->drag_handle = handle_result;
4799                         mwindow->session->drag_button = get_buttonpress() - 1;
4800                         mwindow->session->drag_position = position;
4801                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4802                         mwindow->session->drag_origin_x = get_cursor_x();
4803                         mwindow->session->drag_origin_y = get_cursor_y();
4804                         mwindow->session->drag_start = position;
4805
4806                         rerender = start_selection(position);
4807                         update_overlay = 1;
4808                 }
4809         }
4810         else if( result < 0 && !edit_result->silence() ) {
4811                 mwindow->undo->update_undo_before();
4812                 if( !shift_down() ) {
4813                         if( handle_result == 0 )
4814                                 edit_result->hard_left = !edit_result->hard_left;
4815                         else if( handle_result == 1 )
4816                                 edit_result->hard_right = !edit_result->hard_right;
4817                 }
4818                 else {
4819                         int status = handle_result == 0 ? edit_result->hard_left :
4820                                      handle_result == 1 ? edit_result->hard_right : 0;
4821                         int new_status = !status;
4822                         int64_t edit_edge = edit_result->startproject;
4823                         if( handle_result == 1 ) edit_edge += edit_result->length;
4824                         double edge_position = edit_result->track->from_units(edit_edge);
4825                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4826                                 int64_t track_position = track->to_units(edge_position, 1);
4827                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4828                                 if( left_edit ) {
4829                                         int64_t left_edge = left_edit->startproject;
4830                                         double left_position = track->from_units(left_edge);
4831                                         if( EQUIV(edge_position, left_position) ) {
4832                                                 left_edit->hard_left = new_status;
4833                                                 if( left_edit->previous )
4834                                                         left_edit->previous->hard_right = new_status;
4835                                         }
4836                                 }
4837                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4838                                 if( right_edit ) {
4839                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4840                                         double right_position = track->from_units(right_edge);
4841                                         if( EQUIV(edge_position, right_position) ) {
4842                                                 right_edit->hard_right = new_status;
4843                                                 if( right_edit->next )
4844                                                         right_edit->next->hard_left = new_status;
4845                                         }
4846                                 }
4847                         }
4848                 }
4849                 rerender = update_overlay = 1;
4850                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4851                 result = 1;
4852         }
4853
4854         return result;
4855 }
4856
4857 int TrackCanvas::do_plugin_handles(int cursor_x,
4858         int cursor_y,
4859         int button_press,
4860         int &rerender,
4861         int &update_overlay,
4862         int &new_cursor,
4863         int &update_cursor)
4864 {
4865         Plugin *plugin_result = 0;
4866         int handle_result = 0;
4867         int result = 0;
4868
4869         for(Track *track = mwindow->edl->tracks->first;
4870                 track && !result;
4871                 track = track->next) {
4872                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4873                         PluginSet *plugin_set = track->plugin_set.values[i];
4874                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4875                                 plugin && !result;
4876                                 plugin = (Plugin*)plugin->next) {
4877                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4878                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4879
4880                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4881                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4882                                         if(cursor_x < plugin_x + HANDLE_W) {
4883                                                 plugin_result = plugin;
4884                                                 handle_result = 0;
4885                                                 result = 1;
4886                                         }
4887                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4888                                                 plugin_result = plugin;
4889                                                 handle_result = 1;
4890                                                 result = 1;
4891                                         }
4892                                 }
4893                         }
4894
4895                         if(result && shift_down())
4896                                 mwindow->session->trim_edits = plugin_set;
4897                 }
4898         }
4899
4900         update_cursor = 1;
4901         if(result) {
4902                 double position = 0;
4903                 if(handle_result == 0) {
4904                         position = plugin_result->track->from_units(plugin_result->startproject);
4905                         new_cursor = LEFT_CURSOR;
4906                 }
4907                 else if(handle_result == 1) {
4908                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4909                         new_cursor = RIGHT_CURSOR;
4910                 }
4911
4912                 if(button_press) {
4913                         mwindow->session->drag_plugin = plugin_result;
4914                         mwindow->session->drag_handle = handle_result;
4915                         mwindow->session->drag_button = get_buttonpress() - 1;
4916                         mwindow->session->drag_position = position;
4917                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4918                         mwindow->session->drag_origin_x = get_cursor_x();
4919                         mwindow->session->drag_origin_y = get_cursor_y();
4920                         mwindow->session->drag_start = position;
4921
4922                         rerender = start_selection(position);
4923                         update_overlay = 1;
4924                 }
4925         }
4926
4927         return result;
4928 }
4929
4930
4931 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4932 {
4933         int result = 0;
4934
4935         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4936         drag_cursor_motion(cursor_x, cursor_y,
4937                 &track, &edit, &pluginset, &plugin);
4938
4939         if( button_press && track ) {
4940                 switch( get_buttonpress() ) {
4941                 case RIGHT_BUTTON: {
4942                         double position =
4943                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4944                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
4945                         mwindow->session->current_operation = NO_OPERATION;
4946                         result = 1;
4947                         break; }
4948                 case MIDDLE_BUTTON:
4949                         set_cursor(GRABBED_CURSOR, 0, 1);
4950                         mwindow->session->current_operation = DROP_TARGETING;
4951                         result = 1;
4952                         break;
4953                 }
4954         }
4955
4956         return result;
4957 }
4958
4959 int TrackCanvas::arrow_mode()
4960 {
4961         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
4962 }
4963 int TrackCanvas::ibeam_mode()
4964 {
4965         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
4966 }
4967
4968 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4969         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4970 {
4971         int result = 0;
4972
4973         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4974                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4975                         int64_t edit_x, edit_y, edit_w, edit_h;
4976                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4977
4978 // Cursor inside a track
4979 // Cursor inside an edit
4980                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4981                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4982                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
4983                                         if( get_double_click() ) {
4984                                                 mwindow->edl->tracks->clear_selected_edits();
4985                                                 mwindow->edl->tracks->select_affected_edits(
4986                                                         edit->track->from_units(edit->startproject),
4987                                                         edit->track, 1);
4988                                                 double start = edit->track->from_units(edit->startproject);
4989                                                 start = mwindow->edl->align_to_frame(start, 0);
4990                                                 mwindow->edl->local_session->set_selectionstart(start);
4991                                                 double end = edit->track->from_units(edit->startproject+edit->length);
4992                                                 end = mwindow->edl->align_to_frame(end, 0);
4993                                                 mwindow->edl->local_session->set_selectionend(end);
4994                                                 result = 1; // Select edit duration or select_region
4995                                         }
4996                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
4997                                                 mwindow->session->drag_edit = edit;
4998                                                 mwindow->session->current_operation = GROUP_TOGGLE;
4999                                                 result = 1;
5000                                         }
5001                                         if( result ) {
5002                                                 rerender = 1;
5003                                                 update_cursor = -1;
5004                                         }
5005                                 }
5006                                 else if( drag_start && track->record ) {
5007                                         mwindow->session->drag_edit = edit;
5008                                         mwindow->session->drag_origin_x = cursor_x;
5009                                         mwindow->session->drag_origin_y = cursor_y;
5010 // Where the drag started, so we know relative position inside the edit later
5011                                         mwindow->session->drag_position =
5012                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
5013                                         drag_start = 0; // if unselected "fast" drag
5014                                         if( !edit->silence() && !edit->is_selected ) {
5015                                                 mwindow->edl->tracks->clear_selected_edits();
5016                                                 if( ibeam_mode() ) {
5017                                                         double start = edit->track->from_units(edit->startproject);
5018                                                         mwindow->edl->local_session->set_selectionstart(start);
5019                                                         mwindow->edl->local_session->set_selectionend(start);
5020                                                         edit->set_selected(1);
5021                                                 }
5022                                                 else
5023                                                         mwindow->edl->tracks->select_affected_edits(
5024                                                                 edit->track->from_units(edit->startproject),
5025                                                                 edit->track, 1);
5026                                                 drag_start = 1;
5027                                         }
5028 // Construct list of all affected edits
5029                                         if( drag_start || ibeam_mode() ) {
5030                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
5031                                                 if( mwindow->session->drag_edits->size() > 0 ) {
5032                                                         mwindow->session->current_operation = DRAG_EDIT;
5033 // Need to create drag window
5034                                                         int cx, cy;  get_abs_cursor(cx, cy);
5035                                                         gui->drag_popup = new BC_DragWindow(gui,
5036                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
5037                                                         result = 1;
5038                                                 }
5039                                                 else {
5040                                                         rerender = start_selection(mwindow->session->drag_position);
5041                                                         mwindow->session->current_operation = SELECT_REGION;
5042                                                         update_cursor = 1;
5043                                                 }
5044                                         }
5045                                         else if( edit->is_selected && arrow_mode() ) {
5046                                                 if( mwindow->session->drag_group )
5047                                                         mwindow->session->drag_group->remove_user();
5048                                                 double start_position = 0;
5049                                                 mwindow->session->drag_group =
5050                                                         mwindow->edl->selected_edits_to_clip(0, &start_position,
5051                                                                 &mwindow->session->drag_group_first_track);
5052                                                 if( mwindow->session->drag_group ) {
5053                                                         mwindow->session->current_operation = DRAG_GROUP;
5054                                                         mwindow->session->drag_group_position = start_position;
5055                                                         mwindow->session->drag_group_edit = edit;
5056                                                         mwindow->session->drag_origin_y = edit_y;
5057                                                         result = 1;
5058                                                 }
5059                                         }
5060                                 }
5061                         }
5062                 }
5063         }
5064         return result;
5065 }
5066
5067 // returns -1=doesnt fit, 1=fits, 0=fits but overwrites
5068 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
5069 {
5070         int intersects = 0;
5071         Track *src = group->tracks->first;
5072         for( Track *track=first_track; track && src; track=track->next ) {
5073                 if( !track->record ) return -1;
5074                 if( src->data_type != track->data_type ) return -1;
5075                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
5076                         if( src_edit->silence() ) continue;
5077                         if( !intersects && edit_intersects(track, src_edit, pos) )
5078                                 intersects = 1;
5079                 }
5080                 src = src->next;
5081         }
5082         return src ? -1 : !intersects ? 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         int pane_no = pane->number;
5089         int cur_pix = track->edl->get_position_cursorx(pos, pane_no);
5090         int64_t src_start = src_edit->startproject;
5091         int64_t src_end = src_start + src_edit->length;
5092         double new_start = src_edit->track->from_units(src_start) + pos;
5093         double new_end = src_edit->track->from_units(src_end) + pos;
5094         int64_t trk_start = track->to_units(new_start, 1);
5095         int64_t trk_end = track->to_units(new_end, 1);
5096         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
5097                 if( edit->is_selected || edit->silence() ) continue;
5098                 int64_t edit_start = edit->startproject;
5099                 if( edit_start >= trk_end ) continue;
5100                 int64_t edit_end = edit_start + edit->length;
5101                 if( trk_start >= edit_end ) continue;
5102
5103                 int64_t lt_dist = labs(trk_end - edit_start);
5104                 int64_t rt_dist = labs(edit_end - trk_start);
5105                 int64_t position;
5106                 if( lt_dist < rt_dist ) {
5107                         position = edit_start;
5108                         lt_dist = abs(trk_start - edit_start);
5109                         rt_dist = abs(trk_end - edit_start);
5110                         if( lt_dist > rt_dist )
5111                                 position -= src_end;
5112                 }
5113                 else {
5114                         position = edit_end;
5115                         lt_dist = abs(trk_start - edit_end);
5116                         rt_dist = abs(trk_end - edit_end);
5117                         if( lt_dist > rt_dist )
5118                                 position -= src_end;
5119                 }
5120                 double new_pos = edit->track->from_units(position);
5121                 int new_pix = track->edl->get_position_cursorx(new_pos, pane_no);
5122                 if( abs(new_pix-cur_pix) < HANDLE_W )
5123                         pos = new_pos;
5124                 return 1;
5125         }
5126         return 0;
5127 }
5128
5129 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5130 {
5131         return 0;
5132 }
5133
5134 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5135         int button_press, int &redraw, int &rerender)
5136 {
5137         Plugin *plugin = 0;
5138         int result = 0;
5139         int done = 0;
5140         int64_t x, y, w, h;
5141         Track *track = 0;
5142
5143         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5144                 if(!track->expand_view) continue;
5145
5146                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5147                         // first check if plugins are visible at all
5148                         if (!track->expand_view)
5149                                 continue;
5150                         PluginSet *plugin_set = track->plugin_set.values[i];
5151                         for(plugin = (Plugin*)plugin_set->first;
5152                                 plugin && !done;
5153                                 plugin = (Plugin*)plugin->next) {
5154                                 plugin_dimensions(plugin, x, y, w, h);
5155                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5156                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5157                                         if(cursor_x >= x && cursor_x < x + w &&
5158                                                 cursor_y >= y && cursor_y < y + h) {
5159                                                 done = 1;
5160                                                 break;
5161                                         }
5162                                 }
5163                         }
5164                 }
5165         }
5166
5167         if(plugin) {
5168 // Start plugin popup
5169                 if(button_press) {
5170                         if(get_buttonpress() == RIGHT_BUTTON ) {
5171                                 gui->plugin_menu->update(plugin);
5172                                 gui->plugin_menu->activate_menu();
5173                                 result = 1;
5174                         }
5175                         else if (get_double_click() && !drag_start) {
5176 // Select range of plugin on doubleclick over plugin
5177                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5178                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5179                                         plugin->track->from_units(plugin->length));
5180                                 if(mwindow->edl->session->cursor_on_frames) {
5181                                         mwindow->edl->local_session->set_selectionstart(
5182                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5183                                         mwindow->edl->local_session->set_selectionend(
5184                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5185                                 }
5186                                 rerender = 1;
5187                                 redraw = 1;
5188                                 result = 1;
5189                         }
5190                 }
5191                 else
5192 // Move plugin
5193                 if( drag_start && plugin->track->record && !plugin->silence() ) {
5194                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5195                                 if( plugin->track->data_type == TRACK_AUDIO )
5196                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5197                                 else if( plugin->track->data_type == TRACK_VIDEO )
5198                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5199
5200                                 mwindow->session->drag_plugin = plugin;
5201                                 mwindow->session->drag_origin_x = cursor_x;
5202                                 mwindow->session->drag_origin_y = cursor_y;
5203                                 // Where the drag started, so we know relative position inside the edit later
5204                                 mwindow->session->drag_position =
5205                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5206                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5207 // Create picon
5208                                 switch(plugin->plugin_type) {
5209                                 case PLUGIN_STANDALONE: {
5210                                         PluginServer *server =
5211                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5212                                         if( !server ) break;
5213                                         VFrame *frame = server->picon;
5214                                         if(!frame) {
5215                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5216                                                         frame = mwindow->theme->get_image("aeffect_icon");
5217                                                 }
5218                                                 else {
5219                                                         frame = mwindow->theme->get_image("veffect_icon");
5220                                                 }
5221                                         }
5222                                         int cx, cy;
5223                                         get_abs_cursor(cx, cy);
5224                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5225                                                 break; }
5226
5227                                 case PLUGIN_SHAREDPLUGIN:
5228                                 case PLUGIN_SHAREDMODULE: {
5229                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5230                                         int cx, cy;
5231                                         get_abs_cursor(cx, cy);
5232                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5233                                         break; }
5234                                 }
5235
5236                                 result = 1;
5237                         }
5238                 }
5239         }
5240
5241         return result;
5242 }
5243
5244 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5245         int button_press, int &new_cursor, int &update_cursor)
5246 {
5247         Transition *transition = 0;
5248         int result = 0;
5249         int64_t x, y, w, h;
5250
5251
5252         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5253                 if( !track->show_transitions() ) continue;
5254
5255                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5256                         if( edit->transition ) {
5257                                 edit_dimensions(edit, x, y, w, h);
5258                                 get_transition_coords(edit, x, y, w, h);
5259
5260                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5261                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5262                                         if( cursor_x >= x && cursor_x < x + w &&
5263                                                 cursor_y >= y && cursor_y < y + h ) {
5264                                                 transition = edit->transition;
5265                                                 result = 1;
5266                                                 break;
5267                                         }
5268                                 }
5269                         }
5270                 }
5271         }
5272
5273         update_cursor = 1;
5274         if(transition) {
5275                 if(!button_press) {
5276                         new_cursor = UPRIGHT_ARROW_CURSOR;
5277                 }
5278                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5279                         gui->transition_menu->update(transition);
5280                         gui->transition_menu->activate_menu();
5281                 }
5282         }
5283
5284         return result;
5285 }
5286
5287 int TrackCanvas::button_press_event()
5288 {
5289         int result = 0;
5290         int cursor_x, cursor_y;
5291         int new_cursor;
5292
5293         cursor_x = get_cursor_x();
5294         cursor_y = get_cursor_y();
5295         mwindow->session->trim_edits = 0;
5296
5297         if(is_event_win() && cursor_inside()) {
5298 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5299
5300                 result = 1;
5301                 if(!active) {
5302                         activate();
5303                 }
5304
5305                 if( get_buttonpress() == LEFT_BUTTON ) {
5306                         gui->stop_transport("TrackCanvas::button_press_event");
5307                 }
5308
5309                 int update_overlay = 0, update_cursor = 0, rerender = 0, update_message = 0;
5310
5311                 if(get_buttonpress() == WHEEL_UP) {
5312                         if(shift_down())
5313                                 mwindow->expand_sample();
5314                         else if(ctrl_down())
5315                                 mwindow->move_left(get_w()/ 10);
5316                         else
5317                                 mwindow->move_up(get_h() / 10);
5318                 }
5319                 else if(get_buttonpress() == WHEEL_DOWN) {
5320                         if(shift_down())
5321                                 mwindow->zoom_in_sample();
5322                         else if(ctrl_down())
5323                                 mwindow->move_right(get_w() / 10);
5324                         else
5325                                 mwindow->move_down(get_h() / 10);
5326                 }
5327                 else if(get_buttonpress() == 6) {
5328                         if(ctrl_down())
5329                                 mwindow->move_left(get_w());
5330                         else if(alt_down())
5331                                 mwindow->move_left(get_w() / 20);
5332                         else
5333                                 mwindow->move_left(get_w() / 5);
5334                 }
5335                 else if(get_buttonpress() == 7) {
5336                         if(ctrl_down())
5337                                 mwindow->move_right(get_w());
5338                         else if(alt_down())
5339                                 mwindow->move_right(get_w() / 20);
5340                         else
5341                                 mwindow->move_right(get_w() / 5);
5342                 }
5343                 else {
5344                         if( arrow_mode() ) do {
5345 // Test handles and resource boundaries and highlight a track
5346                                 if( do_transitions(cursor_x, cursor_y,
5347                                                 1, new_cursor, update_cursor) ) break;
5348
5349                                 if( do_keyframes(cursor_x, cursor_y,
5350                                         0, get_buttonpress(), new_cursor,
5351                                         update_cursor, rerender) ) break;
5352                                 update_message = 1;
5353 // Test edit boundaries
5354                                 if( do_edit_handles(cursor_x, cursor_y,
5355                                         1, rerender, update_overlay, new_cursor,
5356                                         update_cursor) ) break;
5357 // Test plugin boundaries
5358                                 if( do_plugin_handles(cursor_x, cursor_y,
5359                                         1, rerender, update_overlay, new_cursor,
5360                                         update_cursor) ) break;
5361
5362                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5363                                         update_overlay, rerender, new_cursor,
5364                                         update_cursor) ) break;
5365
5366                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5367                                         update_cursor, rerender) ) break;
5368
5369                                 if( test_resources(cursor_x, cursor_y) ) break;
5370
5371                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5372
5373                                 result = 0;
5374                         } while(0);
5375                         else if( ibeam_mode() ) do {
5376 // Test handles only and select a region
5377                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5378 //printf("TrackCanvas::button_press_event %d\n", position);
5379
5380                                 if( do_transitions(cursor_x, cursor_y,
5381                                                 1, new_cursor, update_cursor)) break;
5382                                 if(do_keyframes(cursor_x, cursor_y,
5383                                         0, get_buttonpress(), new_cursor,
5384                                         update_cursor, rerender)) {
5385                                         update_overlay = 1;
5386                                         break;
5387                                 }
5388                                 update_message = 1;
5389 // Test edit boundaries
5390                                 if( do_edit_handles(cursor_x, cursor_y,
5391                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5392 // Test plugin boundaries
5393                                 if( do_plugin_handles(cursor_x, cursor_y,
5394                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5395
5396                                 if( do_edits(cursor_x, cursor_y,
5397                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5398
5399                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5400
5401                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5402 // Highlight selection
5403                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5404                                 rerender = start_selection(position);
5405                                 mwindow->session->current_operation = SELECT_REGION;
5406                                 update_cursor = 1;
5407                         } while(0);
5408                 }
5409
5410                 if( rerender ) {
5411                         gui->unlock_window();
5412                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5413                         gui->lock_window("TrackCanvas::button_press_event 2");
5414 // Update faders
5415                         mwindow->update_plugin_guis();
5416                         gui->update_patchbay();
5417                 }
5418
5419                 if( update_message )
5420                         gui->default_message();
5421
5422                 if( update_overlay )
5423                         gui->draw_overlays(1);
5424
5425                 if( update_cursor < 0 ) {
5426 // double_click edit
5427                         gui->swindow->update_selection();
5428                         gui->draw_canvas(0, 0);
5429                 }
5430                 if( update_cursor ) {
5431                         gui->update_timebar(0);
5432                         gui->hide_cursor(0);
5433                         gui->show_cursor(1);
5434                         gui->zoombar->update();
5435                         gui->flash_canvas(1);
5436                 }
5437         }
5438
5439         return result;
5440 }
5441
5442 int TrackCanvas::start_selection(double position)
5443 {
5444         int rerender = 0;
5445         position = mwindow->edl->align_to_frame(position, 1);
5446
5447
5448 // Extend a border
5449         if(shift_down())
5450         {
5451                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5452                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5453
5454                 if(position < midpoint)
5455                 {
5456                         mwindow->edl->local_session->set_selectionstart(position);
5457                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5458 // Que the CWindow
5459                         rerender = 1;
5460                 }
5461                 else
5462                 {
5463                         mwindow->edl->local_session->set_selectionend(position);
5464                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5465 // Don't que the CWindow for the end
5466                 }
5467         }
5468         else
5469 // Start a new selection
5470         {
5471 //printf("TrackCanvas::start_selection %f\n", position);
5472                 mwindow->edl->local_session->set_selectionstart(position);
5473                 mwindow->edl->local_session->set_selectionend(position);
5474                 selection_midpoint = position;
5475 // Que the CWindow
5476                 rerender = 1;
5477         }
5478
5479         return rerender;
5480 }
5481
5482 void TrackCanvas::end_edithandle_selection()
5483 {
5484         mwindow->modify_edithandles();
5485 }
5486
5487 void TrackCanvas::end_pluginhandle_selection()
5488 {
5489         mwindow->modify_pluginhandles();
5490 }
5491
5492
5493 double TrackCanvas::time_visible()
5494 {
5495         return (double)get_w() *
5496                 mwindow->edl->local_session->zoom_sample /
5497                 mwindow->edl->session->sample_rate;
5498 }
5499
5500
5501 void TrackCanvas::show_message(Auto *current, int box_color, const char *fmt, ...)
5502 {
5503         char string[BCTEXTLEN];
5504         char *cp = string, *ep = cp + sizeof(string)-1;
5505         if( box_color >= 0 ) {
5506                 cp += snprintf(string, ep-cp, "%-8s ",
5507                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5508         }
5509         char string2[BCTEXTLEN];
5510         Units::totext(string2,
5511                 current->autos->track->from_units(current->position),
5512                 mwindow->edl->session->time_format,
5513                 mwindow->edl->session->sample_rate,
5514                 mwindow->edl->session->frame_rate,
5515                 mwindow->edl->session->frames_per_foot);
5516         cp += snprintf(cp, ep-cp, "%s", string2);
5517         va_list ap;
5518         va_start(ap, fmt);
5519         vsnprintf(cp, ep-cp, fmt, ap);
5520         va_end(ap);
5521         gui->show_message(string, -1, box_color);
5522 }
5523
5524 // Patchbay* TrackCanvas::get_patchbay()
5525 // {
5526 //      if(pane->patchbay) return pane->patchbay;
5527 //      if(gui->total_panes() == 2 &&
5528 //              gui->pane[TOP_LEFT_PANE] &&
5529 //              gui->pane[TOP_RIGHT_PANE])
5530 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5531 //      if(gui->total_panes() == 4)
5532 //      {
5533 //              if(pane->number == TOP_RIGHT_PANE)
5534 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5535 //              else
5536 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5537 //      }
5538 //
5539 //      return 0;
5540 // }
5541
5542