cinelerra-5.1/cinelerra/trackcanvas.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2014 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "apatchgui.inc"
  23 #include "asset.h"
  24 #include "autoconf.h"
  25 #include "automation.h"
  26 #include "bcsignals.h"
  27 #include "bctimer.h"
  28 #include "clip.h"
  29 #include "bccolors.h"
  30 #include "cache.h"
  31 #include "canvas.h"
  32 #include "cplayback.h"
  33 #include "cursors.h"
  34 #include "cwindowgui.h"
  35 #include "cwindow.h"
  36 #include "edithandles.h"
  37 #include "editpopup.h"
  38 #include "edits.h"
  39 #include "edl.h"
  40 #include "edlsession.h"
  41 #include "floatauto.h"
  42 #include "floatautos.h"
  43 #include "gwindowgui.h"
  44 #include "indexstate.h"
  45 #include "intauto.h"
  46 #include "intautos.h"
  47 #include "keyframe.h"
  48 #include "keyframepopup.h"
  49 #include "keyframes.h"
  50 #include "keys.h"
  51 #include "labels.h"
  52 #include "localsession.h"
  53 #include "mainclock.h"
  54 #include "maincursor.h"
  55 #include "mainsession.h"
  56 #include "mainundo.h"
  57 #include "maskautos.h"
  58 #include "mbuttons.h"
  59 #include "mtimebar.h"
  60 #include "mwindowgui.h"
  61 #include "mwindow.h"
  62 #include "panautos.h"
  63 #include "patchbay.h"
  64 #include "playbackengine.h"
  65 #include "playtransport.h"
  66 #include "plugin.h"
  67 #include "pluginpopup.h"
  68 #include "pluginserver.h"
  69 #include "pluginset.h"
  70 #include "plugintoggles.h"
  71 #include "preferences.h"
  72 #include "renderengine.h"
  73 #include "resourcepixmap.h"
  74 #include "resourcethread.h"
  75 #include "swindow.h"
  76 #include "theme.h"
  77 #include "trackcanvas.h"
  78 #include "tracking.h"
  79 #include "trackpopup.h"
  80 #include "tracks.h"
  81 #include "transition.h"
  82 #include "transitionhandles.h"
  83 #include "transitionpopup.h"
  84 #include "transportque.h"
  85 #include "vframe.h"
  86 #include "vpatchgui.inc"
  87 #include "vrender.h"
  88 #include "zoombar.h"
  89
  90 #include <string.h>
  91
  92 //#define PIXMAP_AGE -5
  93 #define PIXMAP_AGE -32
  94
  95 TrackCanvas::TrackCanvas(MWindow *mwindow,
  96         TimelinePane *pane,
  97         int x,
  98         int y,
  99         int w,
 100         int h)
 101  : BC_SubWindow(x,
 102         y,
 103         w,
 104         h)
 105 {
 106         this->mwindow = mwindow;
 107         this->gui = mwindow->gui;
 108         this->pane = pane;
 109
 110         selection_midpoint = 0;
 111         drag_scroll = 0;
 112         active = 0;
 113         temp_picon = 0;
 114         resource_timer = new Timer;
 115         render_timer = new Timer;
 116         hourglass_enabled = 0;
 117         timebar_position = -1;
 118         snapped = 0;
 119 }
 120
 121 TrackCanvas::~TrackCanvas()
 122 {
 123 //      delete transition_handles;
 124         delete edit_handles;
 125         delete keyframe_pixmap;
 126         delete camerakeyframe_pixmap;
 127         delete modekeyframe_pixmap;
 128         delete pankeyframe_pixmap;
 129         delete projectorkeyframe_pixmap;
 130         delete maskkeyframe_pixmap;
 131         delete background_pixmap;
 132         if(temp_picon) delete temp_picon;
 133         delete render_timer;
 134         delete resource_timer;
 135 }
 136
 137 void TrackCanvas::create_objects()
 138 {
 139         background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 140 //      transition_handles = new TransitionHandles(mwindow, this);
 141         edit_handles = new EditHandles(mwindow, this);
 142         keyframe_pixmap = new BC_Pixmap(this, mwindow->theme->keyframe_data, PIXMAP_ALPHA);
 143         camerakeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->camerakeyframe_data, PIXMAP_ALPHA);
 144         modekeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->modekeyframe_data, PIXMAP_ALPHA);
 145         pankeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->pankeyframe_data, PIXMAP_ALPHA);
 146         projectorkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->projectorkeyframe_data, PIXMAP_ALPHA);
 147         maskkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->maskkeyframe_data, PIXMAP_ALPHA);
 148         draw(NORMAL_DRAW, 1);
 149         update_cursor(0);
 150         flash(0);
 151 }
 152
 153 void TrackCanvas::resize_event()
 154 {
 155 //printf("TrackCanvas::resize_event 1\n");
 156         draw(NORMAL_DRAW, 0);
 157         flash(0);
 158 //printf("TrackCanvas::resize_event 2\n");
 159 }
 160
 161 int TrackCanvas::keypress_event()
 162 {
 163         return 0;
 164 }
 165
 166 int TrackCanvas::cursor_leave_event()
 167 {
 168 // Because drag motion calls get_cursor_over_window we can be sure that
 169 // all highlights get deleted now.
 170 // This ended up blocking keyboard input from the drag operations.
 171         if( timebar_position >= 0 )
 172         {
 173                 timebar_position = -1;
 174                 if( pane->timebar )
 175                         pane->timebar->update(1);
 176         }
 177
 178         return 0;
 179 //      return drag_motion();
 180 }
 181
 182 int TrackCanvas::drag_motion_event()
 183 {
 184         return gui->drag_motion();
 185 }
 186
 187 int TrackCanvas::drag_motion(
 188                 Track **over_track, Edit **over_edit,
 189                 PluginSet **over_pluginset, Plugin **over_plugin)
 190 {
 191         int cursor_x = get_relative_cursor_x();
 192         int cursor_y = get_relative_cursor_y();
 193         if( get_cursor_over_window() ) {
 194                 drag_cursor_motion(cursor_x, cursor_y,
 195                         over_track, over_edit, over_pluginset, over_plugin);
 196         }
 197         if( over_track && !*over_track )
 198                 *over_track = pane->over_patchbay();
 199         return 0;
 200 }
 201
 202 int TrackCanvas::drag_cursor_motion(int cursor_x, int cursor_y,
 203                 Track **over_track, Edit **over_edit,
 204                 PluginSet **over_pluginset, Plugin **over_plugin)
 205 {
 206         if( cursor_x >= 0 && cursor_y >= 0 &&
 207             cursor_x < get_w() && cursor_y < get_h() )
 208         {
 209 //printf("TrackCanvas::drag_motion %d %d\n", __LINE__, pane->number);
 210 // Find the edit and track the cursor is over
 211                 for(Track *track = mwindow->edl->tracks->first; track; track = track->next)
 212                 {
 213                         int64_t track_x, track_y, track_w, track_h;
 214                         track_dimensions(track, track_x, track_y, track_w, track_h);
 215
 216                         if(cursor_y >= track_y &&
 217                                 cursor_y < track_y + track_h)
 218                         {
 219                                 *over_track = track;
 220                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
 221                                 {
 222                                         int64_t edit_x, edit_y, edit_w, edit_h;
 223                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 224                                         if( cursor_y < edit_y || cursor_y >= edit_y + edit_h ) continue;
 225                                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w ) {
 226                                                 *over_edit = edit;
 227                                                 break;
 228                                         }
 229                                         if( edit != track->edits->last ) continue;
 230                                         if( mwindow->session->current_operation != DRAG_ATRANSITION &&
 231                                             mwindow->session->current_operation != DRAG_VTRANSITION ) continue;
 232                                         if( !edit->silence() ) {
 233                                                 // add silence to allow drag transition past last edit
 234                                                 //  will be deleted by Edits::optimize if not used
 235                                                 double length = mwindow->edl->session->default_transition_length;
 236                                                 int64_t start = edit->startproject+edit->length;
 237                                                 int64_t units = track->to_units(length, 1);
 238                                                 track->edits->create_silence(start, start+units);
 239                                                 continue;
 240                                         }
 241                                         if( cursor_x >= edit_x ) { *over_edit = edit; break; }
 242                                 }
 243
 244                                 for(int i = 0; i < track->plugin_set.total; i++)
 245                                 {
 246                                         PluginSet *pluginset = track->plugin_set.values[i];
 247                                         for(Plugin *plugin = (Plugin*)pluginset->first;
 248                                                 plugin;
 249                                                 plugin = (Plugin*)plugin->next)
 250                                         {
 251                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
 252                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
 253
 254                                                 if(cursor_y >= plugin_y &&
 255                                                         cursor_y < plugin_y + plugin_h)
 256                                                 {
 257                                                         *over_pluginset = plugin->plugin_set;
 258
 259                                                         if(cursor_x >= plugin_x &&
 260                                                                 cursor_x < plugin_x + plugin_w)
 261                                                         {
 262                                                                 *over_plugin = plugin;
 263                                                                 break;
 264                                                         }
 265                                                 }
 266                                         }
 267                                 }
 268                                 break;
 269                         }
 270                 }
 271         }
 272
 273         return 0;
 274 }
 275
 276
 277 int TrackCanvas::drag_stop_event()
 278 {
 279         int result = gui->drag_stop();
 280         if( !result && mwindow->session->current_operation ) {
 281                 mwindow->session->current_operation = NO_OPERATION;
 282                 drag_scroll = 0;
 283         }
 284         return result;
 285 }
 286
 287 int TrackCanvas::drag_stop(int *redraw)
 288 {
 289         int result = 0;
 290         int insertion  = 0;
 291         int over_window = 0;
 292         int cursor_x = -1, cursor_y = -1;
 293
 294         if( get_cursor_over_window() ) {
 295                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
 296                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
 297                         over_window = 1;
 298                 else {
 299                         Track *track = pane->over_patchbay();
 300                         if( track && mwindow->session->track_highlighted == track )
 301                                 over_window = 1;
 302                 }
 303         }
 304
 305         if( over_window ) {
 306                 switch(mwindow->session->current_operation) {
 307                 case DRAG_VTRANSITION:
 308                 case DRAG_ATRANSITION:
 309                         if(mwindow->session->edit_highlighted) {
 310                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
 311                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 312                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
 313                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
 314                                         mwindow->session->current_operation = NO_OPERATION;
 315                                         mwindow->paste_transition();
 316                                         result = 1;
 317                                 }
 318                         }
 319                         *redraw = 1;
 320                         break;
 321
 322 // Behavior for dragged plugins is limited by the fact that a shared plugin
 323 // can only refer to a standalone plugin that exists in the same position in
 324 // time.  Dragging a plugin from one point in time to another can't produce
 325 // a shared plugin to the original plugin.  In this case we relocate the
 326 // plugin instead of sharing it.
 327                 case DRAG_AEFFECT_COPY:
 328                 case DRAG_VEFFECT_COPY:
 329                         if( mwindow->session->track_highlighted &&
 330                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
 331                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 332                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
 333                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 334                                 mwindow->session->current_operation = NO_OPERATION;
 335
 336                                 int64_t drop_position = -1;
 337                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
 338                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
 339                                 Track *hi_track = mwindow->session->track_highlighted;
 340
 341 // Insert shared plugin in source
 342 // Move source to different location
 343                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
 344 //printf("TrackCanvas::drag_stop 6\n");
 345                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
 346                                         if( drop_position < 0 ) {
 347                                                 result = 1;
 348                                                 break;          // Do not do anything
 349                                         }
 350
 351                                         Track *track = mwindow->session->track_highlighted;
 352                                         drop_position = track->frame_align(drop_position, 0);
 353                                         mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
 354                                         result = 1;
 355                                 }
 356                                 else if( hi_track ) {
 357 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
 358                                         Edit *hi_edit = mwindow->session->edit_highlighted;
 359                                         drop_position = hi_edit ? hi_edit->startproject : 0;
 360                                         if( drop_position < 0 ) {
 361                                                 result = 1;
 362                                                 break;          // Do not do anything
 363                                         }
 364
 365                                         Track *track = mwindow->session->track_highlighted;
 366                                         drop_position = track->frame_align(drop_position, 0);
 367                                         mwindow->move_effect(drag_plugin, hi_track, drop_position);
 368                                         result = 1;
 369                                 }
 370                         }
 371                         break;
 372
 373                 case DRAG_AEFFECT:
 374                 case DRAG_VEFFECT:
 375                         if( mwindow->session->track_highlighted &&
 376                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
 377                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 378                              (mwindow->session->current_operation == DRAG_VEFFECT &&
 379                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 380 // Drop all the effects
 381                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
 382                                 Track *track = mwindow->session->track_highlighted;
 383                                 double start = 0;
 384                                 double length = track->get_length();
 385
 386                                 if(mwindow->session->plugin_highlighted) {
 387                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
 388                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
 389                                         if(length <= 0) length = track->get_length();
 390                                 }
 391                                 else if(mwindow->session->pluginset_highlighted) {
 392                                                 start = track->from_units(plugin_set->length());
 393                                         length = track->get_length() - start;
 394                                         if(length <= 0) length = track->get_length();
 395                                 }
 396                                 else if(mwindow->edl->local_session->get_selectionend() >
 397                                         mwindow->edl->local_session->get_selectionstart()) {
 398                                         start = mwindow->edl->local_session->get_selectionstart();
 399                                         length = mwindow->edl->local_session->get_selectionend() -
 400                                                 mwindow->edl->local_session->get_selectionstart();
 401                                 }
 402 // Move to a point between two edits
 403                                 else if(mwindow->session->edit_highlighted) {
 404                                         start = mwindow->session->track_highlighted->from_units(
 405                                                 mwindow->session->edit_highlighted->startproject);
 406                                         length = mwindow->session->track_highlighted->from_units(
 407                                                 mwindow->session->edit_highlighted->length);
 408                                 }
 409                                 start = mwindow->edl->align_to_frame(start, 0);
 410                                 mwindow->insert_effects_canvas(start, length);
 411                                 *redraw = 1;
 412                         }
 413                         if( mwindow->session->track_highlighted )
 414                                 result = 1;  // we have to cleanup
 415                         break;
 416
 417                 case DRAG_ASSET:
 418                         if(mwindow->session->track_highlighted) {
 419                                 double asset_duration = 0;
 420                                 int64_t asset_length_units = 0;
 421
 422                                 if(mwindow->session->current_operation == DRAG_ASSET &&
 423                                         mwindow->session->drag_assets->total) {
 424                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
 425                                         // we use video if we are over video and audio if we are over audio
 426                                         if( indexable->have_video() &&
 427                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
 428                                                 // Images have length -1
 429                                                 int64_t video_length = indexable->get_video_frames();
 430                                                 if (video_length < 0) {
 431                                                         if(mwindow->edl->session->si_useduration)
 432                                                                 video_length = mwindow->edl->session->si_duration;
 433                                                         else
 434                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ;
 435                                                 }
 436                                                 asset_duration = video_length / indexable->get_frame_rate();
 437                                         }
 438                                         else if( indexable->have_audio() &&
 439                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
 440                                                 int64_t audio_length = indexable->get_audio_samples();
 441                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
 442                                         }
 443                                         else {
 444                                                 result = 1;
 445                                                 break;  // Do not do anything
 446                                         }
 447                                 }
 448                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
 449                                          mwindow->session->drag_clips->total ) {
 450                                         EDL *clip = mwindow->session->drag_clips->values[0];
 451                                         asset_duration = clip->tracks->total_length();
 452                                 }
 453                                 else {
 454                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
 455                                 }
 456
 457                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
 458                                 int64_t drop_position = drop_edit_position (&insertion, NULL, asset_length_units);
 459                                 if( drop_position < 0 ) {
 460                                         result = 1;
 461                                         break;          // Do not do anything
 462                                 }
 463
 464                                 Track *track = mwindow->session->track_highlighted;
 465                                 double track_position = track->from_units(drop_position);
 466                                 track_position = mwindow->edl->align_to_frame(track_position, 0);
 467
 468 //                              if (!insertion) {
 469 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
 470 //                                      // Unfortunately, this is _a lot_ of work to do right
 471 //                                      printf("Problematic insertion\n");
 472 //                                      mwindow->edl->tracks->clear(track_position,
 473 //                                              track_position + asset_duration, 0);
 474 //                              }
 475                                 mwindow->paste_assets(track_position, track, !insertion);
 476                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
 477                         }
 478                         break;
 479
 480                 case DRAG_EDIT:
 481                         mwindow->session->current_operation = NO_OPERATION;
 482                         if(mwindow->session->track_highlighted) {
 483                                 if( mwindow->session->track_highlighted->data_type ==
 484                                         mwindow->session->drag_edit->track->data_type) {
 485                                         int64_t drop_position = drop_edit_position(&insertion,
 486                                                         mwindow->session->drag_edit,
 487                                                         mwindow->session->drag_edit->length);
 488                                         if( drop_position < 0 ) {
 489                                                 result = 1;
 490                                                 break;          // Do not do anything
 491                                         }
 492                                         Track *track = mwindow->session->track_highlighted;
 493                                         double track_position = track->from_units(drop_position);
 494                                         track_position = mwindow->edl->align_to_frame(track_position, 0);
 495                                         mwindow->move_edits(mwindow->session->drag_edits,
 496                                                         track, track_position, insertion);
 497                                 }
 498
 499                                 result = 1;
 500                         }
 501                         break;
 502                 case DRAG_GROUP:
 503                         mwindow->session->current_operation = NO_OPERATION;
 504                         EDL *drag_group = mwindow->session->drag_group;
 505                         if( drag_group ) {
 506                                 Track *drop_track = mwindow->session->track_highlighted;
 507                                 Track *drag_track = mwindow->session->drag_group_first_track;
 508                                 Edit *drag_edit = mwindow->session->drag_group_edit;
 509                                 Track *edit_track = drag_edit ? drag_edit->track : 0;
 510                                 while( drop_track && edit_track ) {
 511                                         if( edit_track == drag_track ) break;
 512                                         edit_track = edit_track->previous;
 513                                         drop_track = drop_track->previous;
 514                                 }
 515                                 if( drop_track ) {
 516                                         double cur_pos = mwindow->session->drag_group_position;
 517                                         double new_pos = mwindow->edl->get_cursor_position(cursor_x, pane->number);
 518                                         new_pos -= mwindow->session->drag_position - cur_pos;
 519                                         new_pos = mwindow->edl->align_to_frame(new_pos, 0);
 520                                         double drop_position = new_pos;
 521                                         int ret = test_track_group(drag_group, drop_track, new_pos);
 522                                         if( !ret && new_pos != drop_position ) {
 523                                                 drop_position = new_pos;
 524                                                 ret = test_track_group(drag_group, drop_track, new_pos);
 525                                         }
 526                                         if( ret >= 0 )
 527                                                 mwindow->move_group(drag_group, drop_track, drop_position,
 528                                                         ret > 0 ? !shift_down() : shift_down());
 529                                         drag_group->remove_user();
 530                                         mwindow->session->drag_group = 0;
 531                                 }
 532                         }
 533                         result = 1;
 534                         break;
 535                 }
 536         }
 537
 538         return result;
 539 }
 540
 541 int TrackCanvas::drag_start_event()
 542 {
 543         int result = 0;
 544         int redraw = 0;
 545         int rerender = 0;
 546         int new_cursor, update_cursor;
 547
 548         if( mwindow->session->current_operation == GROUP_TOGGLE )
 549                 mwindow->session->current_operation = NO_OPERATION;
 550         else if( mwindow->session->current_operation != NO_OPERATION )
 551                 return 0;
 552
 553         if(is_event_win()) {
 554                 if(do_plugins(get_drag_x(), get_drag_y(),
 555                                 1, 0, redraw, rerender)) {
 556                         result = 1;
 557                 }
 558                 else if(do_edits(get_drag_x(), get_drag_y(),
 559                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
 560                         result = 1;
 561                 }
 562         }
 563
 564         return result;
 565 }
 566
 567 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
 568 {
 569         // get the canvas/track position
 570         Track *track = mwindow->session->track_highlighted;
 571         int cursor_x = get_relative_cursor_x();
 572         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 573         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 574         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 575         if( position <= 0 ) {
 576                 *is_insertion = 1;
 577                 return 0;
 578         }
 579         double cursor_position = position;
 580         int64_t drop_position = track->to_units(cursor_position, 1);
 581         if( moved_edit ) { // relative cursor position depends upon drop point
 582                 double moved_edit_start = moved_edit->track->from_units(moved_edit->startproject);
 583                 position -= mwindow->session->drag_position - moved_edit_start;
 584         }
 585         int64_t edit_position = track->to_units(position, 1);
 586         int64_t grab_position = edit_position;
 587         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
 588                 grab_position -= moved_edit_length / 2;
 589         Edit *last_edit = track->edits->last;
 590         if( !last_edit || edit_position >= (last_edit->startproject+last_edit->length) ) {
 591                 *is_insertion = 0;
 592                 return edit_position;
 593         }
 594
 595         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 596         Edit *next_edit = track->edits->first;
 597         while( next_edit ) {
 598                 Edit *edit = next_edit;  next_edit = (Edit *)edit->next;
 599                 int64_t edit_start = edit->startproject;
 600                 int64_t edit_end = edit_start + edit->length;
 601                 double edit_start_pos = edit->track->from_units(edit_start);
 602                 if( (fabs(edit_start_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 603                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
 604                         return edit_start;
 605                 }
 606                 double edit_end_pos = edit->track->from_units(edit_end);
 607                 if( (fabs(edit_end_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 608                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
 609                         return edit_end;
 610                 }
 611                 if( edit != moved_edit && !edit->silence() )
 612                         drop_start = edit_end; // reset drop zone
 613                 if( next_edit ) {
 614                         if( next_edit == moved_edit || next_edit->silence() ) continue;
 615                         drop_end = edit_end;
 616                 }
 617                 else
 618                         drop_end = INT64_MAX;
 619                 if( edit_position >= drop_start &&
 620                     edit_position+moved_edit_length < drop_end ) {
 621                         *is_insertion = 0; // fits in the zone
 622                         return edit_position;
 623                 }
 624                 if( drop_position < drop_end ) { // drop in the zone
 625                         if( (drop_end - drop_start) >= moved_edit_length ) {
 626                                 *is_insertion = 0; // fits in the zone, but over the edge
 627                                 int64_t dx0 = llabs(drop_position - drop_start);
 628                                 int64_t dx1 = llabs(drop_position - drop_end);
 629                                 return dx0 < dx1 ? drop_start : drop_end - moved_edit_length;
 630                         }
 631                         *is_insertion = 1;
 632                         int64_t edit_center = (edit_start + edit_end) / 2;
 633                         return position < edit_center ? drop_start : drop_end;
 634                 }
 635         }
 636
 637         *is_insertion = 0;
 638         return -1;
 639 }
 640
 641 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
 642 {
 643         // get the canvas/track position
 644         Track *track = plugin_set->track;
 645         double moved_plugin_length = moved_plugin->track->from_units(moved_plugin->length);
 646         int64_t track_plugin_length = track->to_units(moved_plugin_length, 0);
 647         int cursor_x = get_relative_cursor_x();
 648         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 649         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 650         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 651         if( position <= 0 ) return 0;
 652         int64_t drop_position = track->to_units(position, 1);
 653         Plugin *last_plugin = (Plugin *)plugin_set->last;
 654         if( !last_plugin ) return drop_position;
 655         double plugin_set_end = last_plugin->track->from_units(last_plugin->startproject+last_plugin->length);
 656         if( position >= plugin_set_end ) return drop_position;
 657         double moved_plugin_start = moved_plugin->track->from_units(moved_plugin->startproject);
 658         position -= mwindow->session->drag_position - moved_plugin_start;
 659         int64_t plugin_position = track->to_units(position, 1);
 660
 661         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 662         Plugin *next_plugin = (Plugin *)plugin_set->first;
 663         while( next_plugin ) {
 664                 Plugin *plugin = next_plugin;  next_plugin = (Plugin *)plugin->next;
 665                 int64_t plugin_start = plugin->startproject;
 666                 int64_t plugin_end = plugin_start + plugin->length;
 667                 double plugin_end_pos = plugin->track->from_units(plugin_end);
 668                 int64_t track_plugin_end = track->to_units(plugin_end_pos, 0);
 669                 if( plugin != moved_plugin && !plugin->silence() )
 670                         drop_start = track_plugin_end;
 671                 if( next_plugin ) {
 672                         if( next_plugin == moved_plugin || next_plugin->silence() ) continue;
 673                         drop_end = track_plugin_end;
 674                 }
 675                 else
 676                         drop_end = INT64_MAX;
 677                 if( plugin_position >= drop_start && // fits in the zone
 678                     plugin_position+track_plugin_length < drop_end ) {
 679                         return plugin_position;
 680                 }
 681                 if( drop_position < drop_end ) { // drop in the zone
 682                         if( (drop_end - drop_start) >= track_plugin_length ) {
 683                                 int64_t dx0 = llabs(drop_position - drop_start);
 684                                 int64_t dx1 = llabs(drop_position - drop_end);
 685                                 return dx0 < dx1 ? drop_start : drop_end - track_plugin_length;
 686                         }
 687                 }
 688         }
 689
 690         return -1;
 691 }
 692
 693 void TrackCanvas::draw(int mode, int hide_cursor)
 694 {
 695         const int debug = 0;
 696
 697 // Swap pixmap layers
 698         if(get_w() != background_pixmap->get_w() ||
 699                 get_h() != background_pixmap->get_h())
 700         {
 701                 delete background_pixmap;
 702                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 703         }
 704
 705 // Cursor disappears after resize when this is called.
 706 // Cursor doesn't redraw after editing when this isn't called.
 707         if(pane->cursor && hide_cursor) pane->cursor->hide();
 708         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
 709
 710         if(debug) PRINT_TRACE
 711         draw_resources(mode);
 712
 713         if(debug) PRINT_TRACE
 714         draw_overlays();
 715         if(debug) PRINT_TRACE
 716 }
 717
 718 void TrackCanvas::update_cursor(int flush)
 719 {
 720         if( arrow_mode() )
 721                 set_cursor(ARROW_CURSOR, 0, flush);
 722         else if( ibeam_mode() )
 723                 set_cursor(IBEAM_CURSOR, 0, flush);
 724 }
 725
 726
 727 void TrackCanvas::test_timer()
 728 {
 729         if( resource_timer->get_difference() > 1000 && !hourglass_enabled ) {
 730                 start_hourglass();
 731                 hourglass_enabled = 1;
 732         }
 733 }
 734
 735
 736 void TrackCanvas::draw_indexes(Indexable *indexable)
 737 {
 738         IndexState *index_state = indexable->index_state;
 739 // Don't redraw raw samples
 740         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
 741                 return;
 742         draw_resources(NORMAL_DRAW, 1, indexable);
 743         draw_overlays();
 744         flash(0);
 745 }
 746
 747 void TrackCanvas::draw_resources(int mode,
 748         int indexes_only,
 749         Indexable *indexable)
 750 {
 751         const int debug = 0;
 752
 753         if(debug) PRINT_TRACE
 754
 755 // can't stop thread here, because this is called for every pane
 756 //      if(mode != IGNORE_THREAD && !indexes_only)
 757 //              gui->resource_thread->stop_draw(!indexes_only);
 758
 759         if(mode != IGNORE_THREAD &&
 760                 !indexes_only &&
 761                 !gui->resource_thread->interrupted)
 762         {
 763                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
 764                         __LINE__);
 765
 766                 BC_Signals::dump_stack();
 767         }
 768
 769         if(debug) PRINT_TRACE
 770
 771         resource_timer->update();
 772
 773 // Age resource pixmaps for deletion
 774         if(!indexes_only)
 775                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 776                         gui->resource_pixmaps.values[i]->visible--;
 777
 778         if(mode == FORCE_REDRAW)
 779                 gui->resource_pixmaps.remove_all_objects();
 780
 781         if(debug) PRINT_TRACE
 782
 783 // Search every edit
 784         for(Track *current = mwindow->edl->tracks->first;
 785                 current;
 786                 current = NEXT)
 787         {
 788                 if(debug) PRINT_TRACE
 789                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
 790                 {
 791                         if(debug) PRINT_TRACE
 792                         if( current->data_type != TRACK_SUBTITLE )
 793                                 if(!edit->asset && !edit->nested_edl) continue;
 794                         if(indexes_only)
 795                         {
 796                                 if(edit->track->data_type != TRACK_AUDIO) continue;
 797
 798                                 if(edit->nested_edl &&
 799                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
 800
 801                                 if(edit->asset &&
 802                                         strcmp(indexable->path, edit->asset->path)) continue;
 803                         }
 804
 805                         if(debug) PRINT_TRACE
 806
 807                         int64_t edit_x, edit_y, edit_w, edit_h;
 808                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 809
 810 // Edit is visible
 811                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
 812                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
 813                         {
 814                                 int64_t pixmap_x, pixmap_w, pixmap_h;
 815                                 if(debug) PRINT_TRACE
 816
 817 // Search for existing pixmap containing edit
 818                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 819                                 {
 820                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
 821 // Same pointer can be different edit if editing took place
 822                                         if(pixmap->edit_id == edit->id &&
 823                                                 pixmap->pane_number == pane->number)
 824                                         {
 825                                                 pixmap->visible = 1;
 826                                                 break;
 827                                         }
 828                                 }
 829                                 if(debug) PRINT_TRACE
 830
 831 // Get new size, offset of pixmap needed
 832                                 get_pixmap_size(edit,
 833                                         edit_x,
 834                                         edit_w,
 835                                         pixmap_x,
 836                                         pixmap_w,
 837                                         pixmap_h);
 838                                 if(debug) PRINT_TRACE
 839
 840 // Draw new data
 841                                 if(pixmap_w && pixmap_h)
 842                                 {
 843 // Create pixmap if it doesn't exist
 844                                         ResourcePixmap* pixmap = create_pixmap(edit, edit_x,
 845                                                 pixmap_x, pixmap_w, pixmap_h);
 846 // Resize it if it's bigger
 847                                         if( pixmap_w > pixmap->pixmap_w ||
 848                                             pixmap_h > pixmap->pixmap_h)
 849                                                 pixmap->resize(pixmap_w, pixmap_h);
 850                                         pixmap->update_settings(edit, edit_x, edit_w,
 851                                                 pixmap_x, pixmap_w, pixmap_h);
 852 // Draw data
 853                                         if( current->show_assets() )
 854                                                 pixmap->draw_data(this,
 855                                                         edit, edit_x, edit_w,
 856                                                         pixmap_x, pixmap_w, pixmap_h,
 857                                                         mode, indexes_only);
 858                                         else {
 859                                                 set_bg_color(BLACK);
 860                                                 clear_box(0,0, pixmap_w,pixmap_h, pixmap);
 861                                         }
 862 // Draw title
 863                                         if( current->show_titles() )
 864                                                 pixmap->draw_title(this,
 865                                                         edit, edit_x, edit_w,
 866                                                         pixmap_x, pixmap_w);
 867 // Resize it if it's smaller
 868                                         if(pixmap_w < pixmap->pixmap_w ||
 869                                                 pixmap_h < pixmap->pixmap_h)
 870                                                 pixmap->resize(pixmap_w, pixmap_h);
 871
 872 // Copy pixmap to background canvas
 873                                         background_pixmap->draw_pixmap(pixmap,
 874                                                 pixmap->pixmap_x,
 875                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
 876                                                 pixmap->pixmap_w,
 877                                                 edit_h);
 878                                 }
 879                                 if(debug) PRINT_TRACE
 880
 881                         }
 882                 }
 883                 int64_t track_x, track_y, track_w, track_h;
 884                 track_dimensions(current,
 885                         track_x, track_y, track_w, track_h);
 886                 set_color((~get_resources()->get_bg_color()) & 0xffffff);
 887                 set_opaque();
 888                 int x1 = track_x, x2 = x1+track_w;
 889                 int y1 = track_y+track_h-1;
 890                 draw_line(x1,y1, x2,y1, background_pixmap);
 891         }
 892
 893
 894 // Delete unused pixmaps
 895         if(debug) PRINT_TRACE
 896         if(!indexes_only)
 897                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 898                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 899                         {
 900 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 901                                 delete gui->resource_pixmaps.values[i];
 902                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 903                         }
 904         if(debug) PRINT_TRACE
 905
 906         if(hourglass_enabled)
 907         {
 908                 stop_hourglass();
 909                 hourglass_enabled = 0;
 910         }
 911         if(debug) PRINT_TRACE
 912
 913 // can't stop thread here, because this is called for every pane
 914 //      if(mode != IGNORE_THREAD && !indexes_only)
 915 //              gui->resource_thread->start_draw();
 916         if(debug) PRINT_TRACE
 917
 918
 919 }
 920
 921 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 922         int64_t edit_x,
 923         int64_t pixmap_x,
 924         int64_t pixmap_w,
 925         int64_t pixmap_h)
 926 {
 927         ResourcePixmap *result = 0;
 928
 929         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 930         {
 931 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 932                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 933                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 934                 {
 935                         result = gui->resource_pixmaps.values[i];
 936                         break;
 937                 }
 938         }
 939
 940         if(!result)
 941         {
 942 //SET_TRACE
 943                 result = new ResourcePixmap(mwindow,
 944                         gui,
 945                         edit,
 946                         pane->number,
 947                         pixmap_w,
 948                         pixmap_h);
 949 //SET_TRACE
 950                 gui->resource_pixmaps.append(result);
 951         }
 952
 953 //      result->resize(pixmap_w, pixmap_h);
 954         return result;
 955 }
 956
 957 void TrackCanvas::get_pixmap_size(Edit *edit,
 958         int64_t edit_x,
 959         int64_t edit_w,
 960         int64_t &pixmap_x,
 961         int64_t &pixmap_w,
 962         int64_t &pixmap_h)
 963 {
 964
 965 // Align x on frame boundaries
 966
 967
 968 //      switch(edit->edits->track->data_type)
 969 //      {
 970 //              case TRACK_AUDIO:
 971
 972                         pixmap_x = edit_x;
 973                         pixmap_w = edit_w;
 974                         if(pixmap_x < 0)
 975                         {
 976                                 pixmap_w -= -edit_x;
 977                                 pixmap_x = 0;
 978                         }
 979
 980                         if(pixmap_x + pixmap_w > get_w())
 981                         {
 982                                 pixmap_w = get_w() - pixmap_x;
 983                         }
 984
 985 //                      break;
 986 //
 987 //              case TRACK_VIDEO:
 988 //              {
 989 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 990 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 991 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 992 //                      int64_t pixmap_x1 = edit_x;
 993 //                      int64_t pixmap_x2 = edit_x + edit_w;
 994 //
 995 //                      if(pixmap_x1 < 0)
 996 //                      {
 997 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
 998 //                                      pixel_increment +
 999 //                                      edit_x;
1000 //                      }
1001 //
1002 //                      if(pixmap_x2 > get_w())
1003 //                      {
1004 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
1005 //                                      pixel_increment +
1006 //                                      edit_x;
1007 //                      }
1008 //                      pixmap_x = pixmap_x1;
1009 //                      pixmap_w = pixmap_x2 - pixmap_x1;
1010 //                      break;
1011 //              }
1012 //      }
1013
1014         pixmap_h = mwindow->edl->local_session->zoom_track;
1015         Track *track = edit->edits->track;
1016         if( track->show_titles() )
1017                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
1018 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
1019 }
1020
1021 void TrackCanvas::edit_dimensions(Edit *edit,
1022         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1023 {
1024         x = Units::round(edit->track->from_units(edit->startproject) *
1025                         mwindow->edl->session->sample_rate /
1026                         mwindow->edl->local_session->zoom_sample -
1027                         mwindow->edl->local_session->view_start[pane->number]);
1028
1029         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1030
1031 // Method for calculating w so when edits are together we never get off by one error due to rounding
1032         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
1033                         mwindow->edl->session->sample_rate /
1034                         mwindow->edl->local_session->zoom_sample -
1035                         mwindow->edl->local_session->view_start[pane->number]);
1036         w = x_next - x;
1037
1038         int edit_h = 0;
1039         if( edit->track->show_titles() )
1040                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
1041         if( edit->track->show_assets() )
1042                 edit_h += resource_h();
1043         h = edit_h;
1044 }
1045
1046 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1047 {
1048         x = 0;
1049         w = get_w();
1050         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1051         h = track->vertical_span(mwindow->theme);
1052 }
1053
1054
1055 void TrackCanvas::draw_paste_destination()
1056 {
1057         //int cursor_x = get_relative_cursor_x();
1058         //int cursor_y = get_relative_cursor_y();
1059         int current_atrack = 0;
1060         int current_vtrack = 0;
1061         int current_aedit = 0;
1062         int current_vedit = 0;
1063         int64_t w = 0;
1064         int64_t x;
1065         double position;
1066         int insertion  = 0;
1067
1068 //if(pane->number == BOTTOM_RIGHT_PANE)
1069 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1070
1071         if((mwindow->session->current_operation == DRAG_ASSET &&
1072                         (mwindow->session->drag_assets->total ||
1073                         mwindow->session->drag_clips->total)) ||
1074                 (mwindow->session->current_operation == DRAG_EDIT &&
1075                         mwindow->session->drag_edits->total)) {
1076                 Indexable *indexable = 0;
1077                 EDL *clip = 0;
1078                 //int draw_box = 0;
1079
1080                 if(mwindow->session->current_operation == DRAG_ASSET &&
1081                         mwindow->session->drag_assets->size())
1082                         indexable = mwindow->session->drag_assets->get(0);
1083
1084                 if(mwindow->session->current_operation == DRAG_ASSET &&
1085                         mwindow->session->drag_clips->size())
1086                         clip = mwindow->session->drag_clips->get(0);
1087
1088                 int has_audio = 0, has_video = 0;
1089                 double paste_audio_length = 0, paste_video_length = 0;
1090                 double paste_audio_position = -1, paste_video_position = -1;
1091
1092                 if( indexable ) {
1093                         has_audio = indexable->have_audio();
1094                         paste_audio_length = !has_audio ? 0 :
1095                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1096                         has_video = indexable->have_video();
1097                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1098                         // Images have length -1
1099                         if( asset && asset->video_data && asset->video_length < 0 ) {
1100                                 paste_video_length = mwindow->edl->session->si_useduration ?
1101                                         mwindow->edl->session->si_duration / asset->frame_rate :
1102                                         1.0 / asset->frame_rate ;  // 1 frame
1103                         }
1104                         else
1105                                 paste_video_length = !has_video ? 0 :
1106                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1107                 }
1108
1109                 if( clip ) {
1110                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1111                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1112                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1113                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1114                 }
1115
1116 // 'Align cursor on frame' lengths calculations
1117                 if( mwindow->edl->session->cursor_on_frames ) {
1118                         double fps = mwindow->edl->session->frame_rate;
1119                         double aud = floor(paste_audio_length * fps) / fps;
1120                         double vid = floor(paste_video_length * fps) / fps;
1121                         double length = has_video && has_audio ?
1122                                         aud < vid ? aud : vid :
1123                                 has_video ? vid :
1124                                 has_audio ? aud : 0;
1125                         paste_video_length = paste_audio_length = length;
1126                 }
1127
1128                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1129                         int64_t length = 0;
1130                         switch( mwindow->session->track_highlighted->data_type ) {
1131                         case TRACK_VIDEO: length = paste_video_length;  break;
1132                         case TRACK_AUDIO: length = paste_audio_length;  break;
1133                         }
1134                         int64_t asset_length = mwindow->session->track_highlighted->
1135                                 to_units(length, 1);
1136                         paste_audio_position = mwindow->session->track_highlighted->
1137                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1138                 }
1139                 if( has_video ) {
1140                         int64_t asset_length = mwindow->session->track_highlighted->
1141                                 to_units(paste_video_length, 1);
1142                         paste_video_position = mwindow->session->track_highlighted->
1143                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1144                 }
1145
1146 // Get destination track
1147                 for(Track *dest = mwindow->session->track_highlighted;
1148                         dest;
1149                         dest = dest->next) {
1150                         if(dest->record) {
1151 // Get source width in pixels
1152                                 w = -1;
1153 // Use start of highlighted edit
1154                                 if(mwindow->session->edit_highlighted) {
1155                                         position = mwindow->session->track_highlighted->from_units(
1156                                                 mwindow->session->edit_highlighted->startproject);
1157                                 }
1158                                 else {
1159 // Use end of highlighted track, disregarding effects
1160                                         position = mwindow->session->track_highlighted->from_units(
1161                                                 mwindow->session->track_highlighted->edits->length());
1162                                 }
1163
1164 // Get the x coordinate
1165                                 x = Units::to_int64(position *
1166                                         mwindow->edl->session->sample_rate /
1167                                         mwindow->edl->local_session->zoom_sample) -
1168                                         mwindow->edl->local_session->view_start[pane->number];
1169
1170                                 double paste_position = -1.;
1171                                 if(dest->data_type == TRACK_AUDIO) {
1172                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1173 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1174                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1175                                                         indexable->get_sample_rate() *
1176                                                         mwindow->edl->session->sample_rate /
1177                                                         mwindow->edl->local_session->zoom_sample);
1178                                                 paste_position = paste_audio_position;
1179                                         }
1180                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1181                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1182                                                         mwindow->edl->session->sample_rate /
1183                                                         mwindow->edl->local_session->zoom_sample);
1184                                                 paste_position = paste_audio_position;
1185 //printf("draw_paste_destination %d\n", x);
1186                                         }
1187                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1188                                                 current_aedit < mwindow->session->drag_edits->total) {
1189                                                 Edit *edit;
1190                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1191                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1192                                                         current_aedit++;
1193
1194                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1195                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1196                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1197                                                         paste_position = mwindow->session->track_highlighted->
1198                                                                 from_units(drop_edit_position(&insertion,
1199                                                                         mwindow->session->drag_edit,
1200                                                                         mwindow->session->drag_edit->length));
1201                                                         current_aedit++;
1202                                                 }
1203                                         }
1204                                         if( paste_position >= 0 ) {
1205                                                 position = paste_position;
1206                                                 current_atrack++;
1207                                                 //draw_box = 1;
1208                                         }
1209                                         else
1210                                                 w = -1;
1211                                 }
1212                                 else if(dest->data_type == TRACK_VIDEO) {
1213 //printf("draw_paste_destination 1\n");
1214                                         if(indexable && current_vtrack < indexable->get_video_layers())
1215                                         {
1216                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1217                                                         indexable->get_frame_rate() *
1218                                                         mwindow->edl->session->sample_rate /
1219                                                         mwindow->edl->local_session->zoom_sample);
1220                                                 paste_position = paste_video_position;
1221                                         }
1222                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1223                                                 w = Units::to_int64(clip->tracks->total_length() *
1224                                                         mwindow->edl->session->sample_rate /
1225                                                         mwindow->edl->local_session->zoom_sample);
1226                                                 paste_position = paste_video_position;
1227                                         }
1228                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1229                                                 current_vedit < mwindow->session->drag_edits->total) {
1230                                                 Edit *edit;
1231                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1232                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1233                                                         current_vedit++;
1234
1235                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1236                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1237                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1238                                                                 mwindow->edl->session->sample_rate /
1239                                                                 mwindow->edl->local_session->zoom_sample);
1240                                                         paste_position = mwindow->session->track_highlighted->
1241                                                                 from_units(drop_edit_position(&insertion,
1242                                                                         mwindow->session->drag_edit,
1243                                                                         mwindow->session->drag_edit->length));
1244                                                         current_vedit++;
1245                                                 }
1246                                         }
1247                                         if( paste_position >= 0 ) {
1248                                                 position = paste_position;
1249                                                 current_vtrack++;
1250                                                 //draw_box = 1;
1251                                         }
1252                                         else
1253                                                 w = -1;
1254                                 }
1255
1256                                 if(w >= 0) {
1257 // Get the x coordinate
1258                                         x = Units::to_int64(position *
1259                                                 mwindow->edl->session->sample_rate /
1260                                                 mwindow->edl->local_session->zoom_sample) -
1261                                                 mwindow->edl->local_session->view_start[pane->number];
1262                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1263                                         int h = dest->vertical_span(mwindow->theme);
1264
1265 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1266                                         if(x < -BC_INFINITY) {
1267                                                 w -= -BC_INFINITY - x;
1268                                                 x += -BC_INFINITY - x;
1269                                         }
1270                                         w = MIN(65535, w);
1271 // if(pane->number == TOP_RIGHT_PANE)
1272 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1273 // __LINE__, x, y, w, h);
1274                                         if (insertion)
1275                                                 draw_highlight_insertion(x, y, w, h);
1276                                         else
1277                                                 draw_highlight_rectangle(x, y, w, h);
1278                                 }
1279                         }
1280                 }
1281         }
1282 }
1283
1284 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1285 {
1286         x = Units::round(plugin->track->from_units(plugin->startproject) *
1287                 mwindow->edl->session->sample_rate /
1288                 mwindow->edl->local_session->zoom_sample -
1289                 mwindow->edl->local_session->view_start[pane->number]);
1290         w = Units::round(plugin->track->from_units(plugin->length) *
1291                 mwindow->edl->session->sample_rate /
1292                 mwindow->edl->local_session->zoom_sample);
1293         y = plugin->track->y_pixel
1294                 - mwindow->edl->local_session->track_start[pane->number];
1295         if( plugin->track->show_titles() )
1296                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1297         if( plugin->track->show_assets() )
1298                 y += resource_h();
1299         y += plugin->plugin_set->get_number() *
1300                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1301         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1302 }
1303
1304 int TrackCanvas::resource_h()
1305 {
1306         return mwindow->edl->local_session->zoom_track;
1307 }
1308
1309 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1310 {
1311
1312 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1313 // just draw arrows, so user has indication that something is there
1314 // FIXME: get better colors
1315
1316         if (x + w <= 0)
1317         {
1318                 draw_triangle_left(0, y + h /6,
1319                         h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1320                 return;
1321         } else
1322         if (x >= get_w())
1323         {
1324                 draw_triangle_right(get_w() - h * 2/3, y + h /6,
1325                         h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1326                 return;
1327         }
1328
1329 // Fix bug in heroines & cvs version as of 22.8.2005:
1330 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1331         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1332         if(x < -10) { w += x - -10;  x = -10; }
1333         if(y < -10) { h += y - -10;  y = -10; }
1334
1335         w = MIN(w, get_w() + 20);
1336         h = MIN(h, get_h() + 20);
1337         if(w > 0 && h > 0)
1338         {
1339                 set_color(mwindow->preferences->highlight_inverse);
1340                 set_inverse();
1341                 //draw_rectangle(x, y, w, h);
1342                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1343                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1344                 set_opaque();
1345                 draw_rectangle(x, y, w, h);
1346         }
1347 //if(pane->number == TOP_RIGHT_PANE)
1348 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1349 }
1350
1351 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1352 {
1353
1354 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1355 // just draw arrows, so user has indication that something is there
1356 // FIXME: get better colors
1357
1358
1359
1360         int h1 = h / 8;
1361         int h2 = h / 4;
1362
1363         set_inverse();
1364
1365 /* these don't look so good
1366
1367         draw_line(x, y, x, y+h);
1368         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1369         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1370         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1371         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1372 */
1373         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1374         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1375
1376 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1377         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1378         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1379         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1380 */
1381         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1382         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1383
1384 // draw the box centred around x
1385         x -= w / 2;
1386 // Fix bug in heroines & cvs version as of 22.8.2005:
1387 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1388         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1389         if(x < -10) { w += x - -10;  x = -10; }
1390         if(y < -10) { h += y - -10;  y = -10; }
1391         w = MIN(w, get_w() + 20);
1392         h = MIN(h, get_h() + 20);
1393         set_color(mwindow->preferences->highlight_inverse);
1394         set_inverse();
1395         draw_rectangle(x, y, w, h);
1396         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1397         set_opaque();
1398 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1399 }
1400
1401 void TrackCanvas::draw_playback_cursor()
1402 {
1403 // Called before playback_cursor exists
1404 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1405 //      {
1406 //              mwindow->playback_cursor->visible = 0;
1407 //              mwindow->playback_cursor->draw();
1408 //      }
1409 }
1410
1411 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1412 {
1413         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1414         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1415
1416         edit_dimensions(edit, x, y, w, h);
1417
1418         if( edit->track->show_titles() )
1419                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1420
1421         if(side == EDIT_OUT)
1422                 x += w - handle_w;
1423
1424         h = handle_h;
1425         w = handle_w;
1426 }
1427
1428 void TrackCanvas::get_transition_coords(Edit *edit,
1429                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1430 {
1431         int transition_w = xS(30), transition_h = yS(30);
1432         int has_titles = edit->track->show_titles();
1433         int has_assets = edit->track->show_assets();
1434         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1435         double asset_h = resource_h();
1436         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
1437         double dy = has_titles ?
1438                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2 ) :
1439                 ( has_assets ? asset_h/2 : 0) ;
1440         double title_h = mwindow->theme->title_h;
1441         if( dy < title_h / 2 ) { ys = title_h;  dy = ys / 2; }
1442         y += dy;
1443
1444         x -= transition_w / 2;
1445         y -= transition_h / 2;
1446         w = transition_w;
1447         h = transition_h;
1448 }
1449
1450 void TrackCanvas::draw_highlighting()
1451 {
1452         int64_t x, y, w, h;
1453         int draw_box = 0;
1454
1455         switch(mwindow->session->current_operation)
1456         {
1457                 case DRAG_ATRANSITION:
1458                 case DRAG_VTRANSITION:
1459 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1460 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1461                         if(mwindow->session->edit_highlighted) {
1462                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1463                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1464                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1465                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1466                                         edit_dimensions(mwindow->session->edit_highlighted,
1467                                                 x, y, w, h);
1468                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1469                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1470                                                 draw_box = 1;
1471                                                 get_transition_coords(mwindow->session->edit_highlighted,
1472                                                         x, y, w, h);
1473                                         }
1474                                 }
1475                         }
1476                         break;
1477
1478 // Dragging a new effect from the Resource window
1479                 case DRAG_AEFFECT:
1480                 case DRAG_VEFFECT:
1481                         if(mwindow->session->track_highlighted &&
1482                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1483                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1484                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1485                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1486 // Put it before another plugin
1487                                 if(mwindow->session->plugin_highlighted) {
1488                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1489                                                 x, y, w, h);
1490 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1491                                 }
1492 // Put it after a plugin set
1493                                 else if( mwindow->session->pluginset_highlighted &&
1494                                          mwindow->session->pluginset_highlighted->last ) {
1495                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1496                                                 x, y, w, h);
1497 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1498                                         int64_t track_x, track_y, track_w, track_h;
1499                                         track_dimensions(mwindow->session->track_highlighted,
1500                                                 track_x, track_y, track_w, track_h);
1501
1502                                         x += w;
1503                                         w = Units::round(
1504                                                         mwindow->session->track_highlighted->get_length() *
1505                                                         mwindow->edl->session->sample_rate /
1506                                                         mwindow->edl->local_session->zoom_sample -
1507                                                         mwindow->edl->local_session->view_start[pane->number]) -
1508                                                 x;
1509 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1510                                         if(w <= 0) w = track_w;
1511                                 }
1512                                 else {
1513                                         track_dimensions(mwindow->session->track_highlighted,
1514                                                 x, y, w, h);
1515
1516 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1517 // Put it in a new plugin set determined by the selected range
1518                                         if(mwindow->edl->local_session->get_selectionend() >
1519                                                 mwindow->edl->local_session->get_selectionstart()) {
1520                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1521                                                         mwindow->edl->session->sample_rate /
1522                                                         mwindow->edl->local_session->zoom_sample -
1523                                                         mwindow->edl->local_session->view_start[pane->number]);
1524                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1525                                                         mwindow->edl->local_session->get_selectionstart()) *
1526                                                         mwindow->edl->session->sample_rate /
1527                                                         mwindow->edl->local_session->zoom_sample);
1528                                         }
1529 // Put it in a new plugin set determined by an edit boundary
1530                                         else if(mwindow->session->edit_highlighted) {
1531                                                 int64_t temp_y, temp_h;
1532                                                 edit_dimensions(mwindow->session->edit_highlighted,
1533                                                         x, temp_y, w, temp_h);
1534                                         }
1535 // Put it at the beginning of the track in a new plugin set
1536                                 }
1537
1538                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1539                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1540 //printf("TrackCanvas::draw_highlighting 1\n");
1541                                         draw_box = 1;
1542                                 }
1543                         }
1544                         break;
1545
1546                 case DRAG_ASSET:
1547                         if(mwindow->session->track_highlighted) {
1548 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1549
1550 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1551 //                              {
1552                                         draw_paste_destination();
1553 //                              }
1554                         }
1555                         break;
1556
1557                 case DRAG_EDIT:
1558                         if(mwindow->session->track_highlighted) {
1559 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1560 //
1561 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1562                                         draw_paste_destination();
1563 //                              }
1564                         }
1565                         break;
1566                 case DRAG_GROUP:
1567                         if( mwindow->session->track_highlighted && mwindow->session->drag_group &&
1568                             mwindow->session->drag_group_edit && mwindow->session->drag_group_first_track ) {
1569                                 Track *track = mwindow->session->track_highlighted;
1570                                 EDL *drag_group = mwindow->session->drag_group;
1571                                 Track *edit_track = mwindow->session->drag_group_edit->track;
1572                                 Track *drag_track = mwindow->session->drag_group_first_track;
1573                                 while( track && edit_track && edit_track != drag_track ) {
1574                                         edit_track = edit_track->previous;
1575                                         track = track->previous;
1576                                 }
1577                                 int cx = get_cursor_x();
1578                                 double cur_pos = mwindow->session->drag_group_position;
1579                                 double new_pos = mwindow->edl->get_cursor_position(cx, pane->number);
1580                                 new_pos -= mwindow->session->drag_position - cur_pos;
1581                                 new_pos = mwindow->edl->align_to_frame(new_pos, 0);
1582                                 double drop_position = new_pos;
1583                                 int color = GREEN;
1584                                 int ret = test_track_group(drag_group, track, new_pos);
1585                                 if( ret < 0 )
1586                                         color = ORANGE;
1587                                 else if( !ret ) {
1588                                         if( new_pos != drop_position ) {
1589                                                 double pos = new_pos;
1590                                                 pos += mwindow->session->drag_position - cur_pos;
1591                                                 cx = mwindow->edl->get_position_cursorx(pos, pane->number);
1592                                                 ret = test_track_group(drag_group, track, new_pos);
1593                                         }
1594                                         color = ret > 0 ? YELLOW : shift_down() ? RED : BLUE;
1595                                 }
1596                                 track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1597                                 int dx = cx - mwindow->session->drag_origin_x;
1598                                 int dy = y - mwindow->session->drag_origin_y;
1599                                 draw_selected_edits(mwindow->edl, dx, dy, color, -1);
1600                         }
1601                         break;
1602 // Dragging an effect from the timeline
1603                 case DRAG_AEFFECT_COPY:
1604                 case DRAG_VEFFECT_COPY:
1605                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1606                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1607                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1608                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1609                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1610
1611                                 int64_t plugin_position = -1;
1612                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1613                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1614                                 Track *hi_track = mwindow->session->track_highlighted;
1615                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1616 // Put it into a silence zone
1617                                 if( hi_plugin_set && hi_plugin_set->last &&
1618                                     hi_plugin_set->track == drag_plugin->track ) {
1619                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1620                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1621                                         hi_track = drag_plugin->track;
1622                                 }
1623                                 else if( hi_track ) {
1624 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1625                                         track_dimensions(hi_track, x, y, w, h);
1626                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1627                                 }
1628
1629                                 if( plugin_position < 0 ) break;
1630
1631 // Calculate length of plugin based on data type of track and units
1632                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1633                                                 mwindow->edl->local_session->zoom_sample;
1634                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1635                                                 mwindow->edl->local_session->view_start[pane->number];
1636                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1637
1638                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1639                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1640                                         draw_box = 1;
1641                                 }
1642                         }
1643                         break;
1644
1645                 case DRAG_PLUGINKEY:
1646                         if(mwindow->session->plugin_highlighted &&
1647                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1648                         {
1649 // Just highlight the plugin
1650                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1651
1652                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1653                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1654                                 {
1655                                         draw_box = 1;
1656                                 }
1657                         }
1658                         break;
1659
1660         }
1661
1662         if( draw_box )
1663                 draw_highlight_rectangle(x, y, w, h);
1664
1665         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1666 }
1667
1668 // x does not reliably draw a really big rectangle
1669 void TrackCanvas::draw_selected(int x, int y, int w, int h)
1670 {
1671         int x1 = bmax(x, 0), x2 = bmin(x+w, get_w());
1672         if( x1 > x2 ) return;
1673         int y1 = bmax(y, 0), y2 = bmin(y+h, get_h());
1674         if( y1 > y2 ) return;
1675         if( x   >= 0 && x   < get_w() ) draw_line(x,y1,   x,y2);
1676         if( x+w >= 0 && x+w < get_w() ) draw_line(x+w,y1, x+w,y2);
1677         if( y   >= 0 && y   < get_h() ) draw_line(x1,y,   x2,y);
1678         if( y+h >= 0 && y+h < get_h() ) draw_line(x1,y+h, x2,y+h);
1679 }
1680
1681 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1682 {
1683         int dropping = 0;
1684         for( Track *track=edl->tracks->first; track; track=track->next ) {
1685                 if( !track->record && color1 < 0 ) {
1686                         if( dropping )
1687                                 dy -= track->vertical_span(mwindow->theme);
1688                         continue;
1689                 }
1690                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1691                         if( !edit->is_selected ) continue;
1692                         dropping = 1;
1693                         int64_t x, y, w, h;
1694                         edit_dimensions(edit, x, y, w, h);
1695                         x += dx;  y += dy;
1696                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1697                         if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1698                         set_opaque();
1699                         int inner = color1 < 0 ? color0 : !edit->group_id ? color0 :
1700                                 mwindow->get_group_color(edit->group_id);
1701                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1702                         set_color(track->record ? inner : outer);
1703                         draw_selected(x, y, w, h);
1704                         set_color(track->record ? outer : inner);
1705                         draw_selected(x-1, y-1, w+2, h+2);
1706                         draw_selected(x-2, y-2, w+1, h+1);
1707                 }
1708         }
1709 }
1710
1711 void TrackCanvas::draw_plugins()
1712 {
1713         char string[BCTEXTLEN];
1714         int current_on = 0;
1715         int current_show = 0;
1716         int current_preset = 0;
1717
1718         for(int i = 0; i < plugin_on_toggles.total; i++)
1719                 plugin_on_toggles.values[i]->in_use = 0;
1720         for(int i = 0; i < plugin_show_toggles.total; i++)
1721                 plugin_show_toggles.values[i]->in_use = 0;
1722         for(int i = 0; i < preset_edit_buttons.total; i++)
1723                 plugin_show_toggles.values[i]->in_use = 0;
1724
1725
1726         for(Track *track = mwindow->edl->tracks->first;
1727                 track;
1728                 track = track->next)
1729         {
1730                 if(track->expand_view)
1731                 {
1732                         for(int i = 0; i < track->plugin_set.total; i++)
1733                         {
1734                                 PluginSet *pluginset = track->plugin_set.values[i];
1735
1736                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1737                                 {
1738                                         int64_t total_x, y, total_w, h;
1739                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1740
1741                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1742                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1743                                                 plugin->plugin_type != PLUGIN_NONE)
1744                                         {
1745                                                 int x = total_x, w = total_w, left_margin = 5;
1746                                                 int right_margin = 5;
1747                                                 if(x < 0)
1748                                                 {
1749                                                         w -= -x;
1750                                                         x = 0;
1751                                                 }
1752                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1753
1754                                                 draw_3segmenth(x,
1755                                                         y,
1756                                                         w,
1757                                                         total_x,
1758                                                         total_w,
1759                                                         mwindow->theme->get_image("plugin_bg_data"),
1760                                                         0);
1761                                                 set_color(mwindow->theme->title_color);
1762                                                 set_font(mwindow->theme->title_font);
1763                                                 plugin->calculate_title(string, 0);
1764
1765 // Truncate string to int64_test visible in background
1766                                                 int len = strlen(string), j;
1767                                                 for(j = len; j >= 0; j--)
1768                                                 {
1769                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1770                                                         {
1771                                                                 string[j] = 0;
1772                                                         }
1773                                                         else
1774                                                                 break;
1775                                                 }
1776
1777 // Justify the text on the left boundary of the edit if it is visible.
1778 // Otherwise justify it on the left side of the screen.
1779                                                 int64_t text_x = total_x + left_margin;
1780                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1781                                                 text_x = MAX(left_margin, text_x);
1782                                                 draw_text(text_x,
1783                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1784                                                         string,
1785                                                         strlen(string),
1786                                                         0);
1787                                                 int64_t min_x = total_x + text_w;
1788
1789
1790 // Update plugin toggles
1791                                                 int toggle_x = total_x + total_w;
1792                                                 int toggle_y = y;
1793                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1794
1795 // On toggle
1796                                                 toggle_x -= PluginOn::calculate_w(mwindow) + xS(10);
1797                                                 if(toggle_x > min_x)
1798                                                 {
1799                                                         if(current_on >= plugin_on_toggles.total)
1800                                                         {
1801                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1802                                                                 add_subwindow(plugin_on);
1803                                                                 plugin_on_toggles.append(plugin_on);
1804                                                         }
1805                                                         else
1806                                                         {
1807                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1808                                                         }
1809                                                         current_on++;
1810                                                 }
1811
1812 // Toggles for standalone plugins only
1813                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1814                                                 {
1815 // Show
1816                                                         toggle_x -= PluginShow::calculate_w(mwindow) + xS(10);
1817                                                         if(toggle_x > min_x)
1818                                                         {
1819                                                                 if(current_show >= plugin_show_toggles.total)
1820                                                                 {
1821                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1822                                                                         add_subwindow(plugin_show);
1823                                                                         plugin_show_toggles.append(plugin_show);
1824                                                                 }
1825                                                                 else
1826                                                                 {
1827                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1828                                                                 }
1829                                                                 current_show++;
1830                                                         }
1831                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + xS(10);
1832                                                         if(toggle_x > min_x)
1833                                                         {
1834                                                                 if(current_preset >= preset_edit_buttons.total)
1835                                                                 {
1836                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1837                                                                         add_subwindow(preset_edit);
1838                                                                         preset_edit_buttons.append(preset_edit);
1839                                                                 }
1840                                                                 else
1841                                                                 {
1842                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1843                                                                 }
1844                                                                 current_preset++;
1845                                                         }
1846                                                 }
1847                                         }
1848                                 }
1849                         }
1850                 }
1851         }
1852
1853 // Remove unused toggles
1854
1855         while(current_preset < preset_edit_buttons.total)
1856         {
1857                 preset_edit_buttons.remove_object_number(current_preset);
1858         }
1859         while(current_show < plugin_show_toggles.total)
1860         {
1861                 plugin_show_toggles.remove_object_number(current_show);
1862         }
1863
1864         while(current_on < plugin_on_toggles.total)
1865         {
1866                 plugin_on_toggles.remove_object_number(current_on);
1867         }
1868 }
1869
1870 void TrackCanvas::refresh_plugintoggles()
1871 {
1872         for(int i = 0; i < plugin_on_toggles.total; i++)
1873         {
1874                 PluginOn *on = plugin_on_toggles.values[i];
1875                 on->reposition_window(on->get_x(), on->get_y());
1876         }
1877         for(int i = 0; i < plugin_show_toggles.total; i++)
1878         {
1879                 PluginShow *show = plugin_show_toggles.values[i];
1880                 show->reposition_window(show->get_x(), show->get_y());
1881         }
1882         for(int i = 0; i < preset_edit_buttons.total; i++)
1883         {
1884                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1885                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1886         }
1887 }
1888
1889 void TrackCanvas::draw_hard_edges()
1890 {
1891         if( !mwindow->edl->session->auto_conf->hard_edges )
1892                 return;
1893         int64_t x, y, w, h;
1894
1895         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1896                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1897                         if( !edit->hard_left && !edit->hard_right ) continue;
1898                         edit_dimensions(edit, x, y, w, h);
1899                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ||
1900                             !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1901                         set_color(GREEN);
1902                         set_opaque();
1903                         int y1 = y;
1904                         if( track->show_titles() )
1905                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1906                         if( track->show_assets() )
1907                                 y1 += resource_h();
1908                         if( y1 == y )
1909                                 y1 += mwindow->theme->title_h;
1910                         if( edit->hard_left ) {
1911                                 ArrayList<int> xpt, ypt;
1912                                 xpt.append(x);              ypt.append(y1);
1913                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1914                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1915                                 fill_polygon(&xpt, &ypt);
1916                         }
1917                         if( edit->hard_right ) {
1918                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1919                                 xpt.append(x1);            ypt.append(y1);
1920                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1921                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1922                                 fill_polygon(&xpt, &ypt);
1923                         }
1924                 }
1925         }
1926 }
1927
1928 void TrackCanvas::draw_inout_points()
1929 {
1930 }
1931
1932
1933 void TrackCanvas::draw_drag_handle()
1934 {
1935         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 &&
1936             mwindow->session->current_operation != DRAG_PLUGINHANDLE2 ) return;
1937         int64_t pixel1 = Units::round(mwindow->session->drag_position *
1938                 mwindow->edl->session->sample_rate /
1939                 mwindow->edl->local_session->zoom_sample -
1940                 mwindow->edl->local_session->view_start[pane->number]);
1941         set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1942         set_inverse();
1943         draw_line(pixel1, 0, pixel1, get_h());
1944         set_opaque();
1945
1946         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 ) return;
1947         if( !mwindow->session->drag_edit ) return;
1948         int group_id = mwindow->session->drag_edit->group_id;
1949         if( !group_id ) return;
1950         int64_t dx, dy, dw, dh;
1951         edit_dimensions(mwindow->session->drag_edit, dx, dy, dw, dh);
1952         int drag_handle = mwindow->session->drag_handle;
1953         int64_t pixel0 = !drag_handle ? dx : dx + dw;
1954         int delta = pixel1 - pixel0;
1955         set_color(LTPURPLE);
1956         set_line_width(3);
1957
1958         for( Track *track=mwindow->edl->tracks->first; track; track=track->next ) {
1959                 Edit *left = 0, *right = 0;
1960                 double start = DBL_MAX, end = DBL_MIN;
1961                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1962                         if( edit->group_id != group_id ) continue;
1963                         double edit_start = edit->track->from_units(edit->startproject);
1964                         if( edit_start < start ) { start = edit_start;  left = edit; }
1965                         double edit_end = edit->track->from_units(edit->startproject+edit->length);
1966                         if( edit_end > end ) { end = edit_end;  right = edit; }
1967                 }
1968                 Edit *edit = !drag_handle ? left : right;
1969                 if( !edit ) continue;
1970                 Indexable *idxbl = edit->asset;
1971                 if( !idxbl ) idxbl = edit->nested_edl;
1972                 int can_drag = idxbl ? 1 : 0;
1973                 if( drag_handle ) {
1974                         int64_t source_len = !idxbl ? -1 :
1975                                 edit->track->data_type == TRACK_AUDIO ?
1976                                         idxbl->get_audio_samples() :
1977                                 edit->track->data_type == TRACK_VIDEO ?
1978                                         idxbl->get_video_frames() : -1;
1979                         if( edit->startsource + edit->length >= source_len )
1980                                 can_drag = 0;
1981                 }
1982                 else if( !edit->startsource )
1983                         can_drag = 0;
1984                 int64_t x, y, w, h;
1985                 edit_dimensions(edit, x, y, w, h);
1986                 if( y+h < 0 || y >= get_h() ) continue;
1987                 int edge_x = !drag_handle ? x : x + w;
1988                 int edge_y = y + h/2, xs10 = xS(10), ys10 = yS(10);
1989                 if( edge_x >= 0 && edge_x < get_w() ) {
1990                         if( !can_drag ) {
1991                                 draw_line(edge_x-xs10,edge_y-ys10, edge_x+xs10,edge_y+ys10);
1992                                 draw_line(edge_x-xs10,edge_y+ys10, edge_x+xs10,edge_y-ys10);
1993                         }
1994                         else if( !drag_handle ) {
1995                                 draw_line(edge_x+xs10,edge_y-ys10, edge_x,edge_y);
1996                                 draw_line(edge_x+xs10,edge_y+ys10, edge_x,edge_y);
1997                         }
1998                         else {
1999                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y-ys10);
2000                                 draw_line(edge_x,edge_y, edge_x-xs10,edge_y+ys10);
2001                         }
2002                 }
2003                 edge_x += delta;
2004                 if( edge_x >= 0 && edge_x < get_w() ) {
2005                         draw_line(edge_x, y, edge_x, y+h);
2006                 }
2007         }
2008         set_line_width(1);
2009 }
2010
2011
2012 void TrackCanvas::draw_transitions()
2013 {
2014         int64_t x, y, w, h;
2015
2016         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2017                 if( !track->show_transitions() ) continue;
2018
2019                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2020                         if(!edit->transition) continue;
2021                         edit_dimensions(edit, x, y, w, h);
2022                         int strip_x = x, edit_y = y;
2023                         get_transition_coords(edit, x, y, w, h);
2024                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2025                         if( track->show_assets() && track->show_titles() )
2026                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2027                         if( strip_y < edit_y ) strip_y = edit_y;
2028
2029                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2030                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2031                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2032                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2033                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2034                                                 track->data_type);
2035                                 if( !server ) continue;
2036                                 VFrame *picon = server->get_picon();
2037                                 if( !picon ) continue;
2038                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2039                                 int track_h = edit->track->vertical_span(mwindow->theme);
2040                                 if( picon_h > track_h ) picon_h = track_h;
2041                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2042                         }
2043                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2044                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2045                                 int x = strip_x, w = strip_w;
2046                                 if( x < 0 ) {  w -= -x;  x = 0; }
2047                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2048
2049                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2050                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2051                         }
2052                 }
2053         }
2054 }
2055
2056 void TrackCanvas::draw_loop_points()
2057 {
2058 //printf("TrackCanvas::draw_loop_points 1\n");
2059         if(mwindow->edl->local_session->loop_playback)
2060         {
2061 //printf("TrackCanvas::draw_loop_points 2\n");
2062                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2063                         mwindow->edl->session->sample_rate /
2064                         mwindow->edl->local_session->zoom_sample -
2065                         mwindow->edl->local_session->view_start[pane->number]);
2066 //printf("TrackCanvas::draw_loop_points 3\n");
2067
2068                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2069                 {
2070                         set_color(GREEN);
2071                         draw_line(x, 0, x, get_h());
2072                 }
2073 //printf("TrackCanvas::draw_loop_points 4\n");
2074
2075                 x = Units::round(mwindow->edl->local_session->loop_end *
2076                         mwindow->edl->session->sample_rate /
2077                         mwindow->edl->local_session->zoom_sample -
2078                         mwindow->edl->local_session->view_start[pane->number]);
2079 //printf("TrackCanvas::draw_loop_points 5\n");
2080
2081                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2082                 {
2083                         set_color(GREEN);
2084                         draw_line(x, 0, x, get_h());
2085                 }
2086 //printf("TrackCanvas::draw_loop_points 6\n");
2087         }
2088 //printf("TrackCanvas::draw_loop_points 7\n");
2089 }
2090
2091 void TrackCanvas::draw_brender_range()
2092 {
2093         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2094         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2095         if( mwindow->edl->session->brender_end > 0 )
2096         {
2097                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2098                         mwindow->edl->session->sample_rate /
2099                         mwindow->edl->local_session->zoom_sample -
2100                         mwindow->edl->local_session->view_start[pane->number]);
2101                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2102                 {
2103                         set_color(RED);
2104                         draw_line(x1, 0, x1, get_h());
2105                 }
2106                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2107                         mwindow->edl->session->sample_rate /
2108                         mwindow->edl->local_session->zoom_sample -
2109                         mwindow->edl->local_session->view_start[pane->number]);
2110
2111                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2112                 {
2113                         set_color(RED);
2114                         draw_line(x2, 0, x2, get_h());
2115                 }
2116         }
2117 }
2118
2119 // The operations which correspond to each automation type
2120 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2121 {
2122         DRAG_MUTE,
2123         DRAG_CAMERA_X,
2124         DRAG_CAMERA_Y,
2125         DRAG_CAMERA_Z,
2126         DRAG_PROJECTOR_X,
2127         DRAG_PROJECTOR_Y,
2128         DRAG_PROJECTOR_Z,
2129         DRAG_FADE,
2130         DRAG_PAN,
2131         DRAG_MODE,
2132         DRAG_MASK,
2133         DRAG_SPEED
2134 };
2135
2136 // The buttonpress operations, so nothing changes unless the mouse moves
2137 // a certain amount.  This allows the keyframe to be used to position the
2138 // insertion point without moving itself.
2139 static int pre_auto_operations[AUTOMATION_TOTAL] =
2140 {
2141         DRAG_MUTE,
2142         DRAG_CAMERA_X,
2143         DRAG_CAMERA_Y,
2144         DRAG_CAMERA_Z,
2145         DRAG_PROJECTOR_X,
2146         DRAG_PROJECTOR_Y,
2147         DRAG_PROJECTOR_Z,
2148         DRAG_FADE,
2149         DRAG_PAN_PRE,
2150         DRAG_MODE_PRE,
2151         DRAG_MASK_PRE,
2152         DRAG_SPEED
2153 };
2154
2155
2156 int TrackCanvas::do_keyframes(int cursor_x,
2157         int cursor_y,
2158         int draw,
2159         int buttonpress,
2160         int &new_cursor,
2161         int &update_cursor,
2162         int &rerender)
2163 {
2164 // Note: button 3 (right mouse button) is not eaten to allow
2165 // track context menu to appear
2166         int result = 0;
2167         EDLSession *session = mwindow->edl->session;
2168
2169
2170
2171         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2172         {
2173                 0, 0, 0, 0, 0, 0, 0, 0,
2174                 pankeyframe_pixmap,
2175                 modekeyframe_pixmap,
2176                 maskkeyframe_pixmap,
2177                 0,
2178         };
2179
2180
2181
2182         for(Track *track = mwindow->edl->tracks->first;
2183                 track && !result;
2184                 track = track->next) {
2185                 Auto *auto_keyframe = 0;
2186                 Automation *automation = track->automation;
2187
2188
2189 // Handle keyframes in reverse drawing order if a button press
2190                 int start = 0;
2191                 int end = AUTOMATION_TOTAL;
2192                 int step = 1;
2193                 if(buttonpress)
2194                 {
2195                         start = AUTOMATION_TOTAL - 1;
2196                         end = -1;
2197                         step = -1;
2198                 }
2199                 for(int i = start; i != end && !result; i += step)
2200                 {
2201 // Event not trapped and automation visible
2202                         Autos *autos = automation->autos[i];
2203                         if(!result && session->auto_conf->autos[i] && autos) {
2204                                 switch(i) {
2205                                 case AUTOMATION_MODE:
2206                                 case AUTOMATION_PAN:
2207                                 case AUTOMATION_MASK:
2208                                         result = do_autos(track, automation->autos[i],
2209                                                 cursor_x, cursor_y, draw,
2210                                                 buttonpress, auto_pixmaps[i],
2211                                                 auto_keyframe, rerender);
2212                                                 break;
2213
2214                                 default: {
2215                                         switch(autos->get_type()) {
2216                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2217                                                 Automation automation(0, track);
2218                                                 int grouptype = automation.autogrouptype(i, track);
2219                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2220                                                         mwindow->speed_before();
2221                                                 }
2222
2223                                                 if(draw) // Do dropshadow
2224                                                         result = do_float_autos(track, autos,
2225                                                                 cursor_x, cursor_y, draw,
2226                                                                 buttonpress, 1, 1, MDGREY,
2227                                                                 auto_keyframe, grouptype);
2228                                                 result = do_float_autos(track, autos,
2229                                                         cursor_x, cursor_y, draw, buttonpress,
2230                                                         0, 0, GWindowGUI::auto_colors[i],
2231                                                         auto_keyframe, grouptype);
2232
2233                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2234                                                         mwindow->speed_after(-1);
2235                                                 if( result && buttonpress ) {
2236                                                         int color = GWindowGUI::auto_colors[i];
2237                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2238                                                 }
2239                                                 break; }
2240
2241                                         case Autos::AUTOMATION_TYPE_INT: {
2242                                                 if(draw) // Do dropshadow
2243                                                         result = do_int_autos(track, autos,
2244                                                                 cursor_x, cursor_y, draw,
2245                                                                 buttonpress, 1, 1, MDGREY,
2246                                                                 auto_keyframe);
2247                                                 result = do_int_autos(track, autos,
2248                                                         cursor_x, cursor_y, draw, buttonpress,
2249                                                         0, 0, GWindowGUI::auto_colors[i],
2250                                                         auto_keyframe);
2251                                                 break; }
2252                                         }
2253                                         break; }
2254                                 }
2255
2256                                 if(result)
2257                                 {
2258                                         if(mwindow->session->current_operation == auto_operations[i])
2259                                                 rerender = 1;
2260
2261 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2262 // __LINE__,
2263 // mwindow->session->current_operation,
2264 // auto_operations[i]);
2265                                         if(buttonpress)
2266                                         {
2267                                                 if (buttonpress == 2 && auto_keyframe )
2268                                                 {
2269                                                         double position = track->from_units(auto_keyframe->position);
2270                                                         mwindow->edl->local_session->set_selectionstart(position);
2271                                                         mwindow->edl->local_session->set_selectionend(position);
2272                                                 }
2273                                                 if (buttonpress != 3)
2274                                                 {
2275                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2276                                                                 fill_ganged_autos(get_double_click(), 0, track,
2277                                                                         (FloatAuto*)mwindow->session->drag_auto);
2278                                                         mwindow->session->current_operation = pre_auto_operations[i];
2279                                                         update_drag_caption();
2280                                                         rerender = 1;
2281                                                 }
2282                                                 else if( auto_keyframe )
2283                                                 {
2284                                                         gui->keyframe_menu->update(automation,
2285                                                                 autos,
2286                                                                 auto_keyframe);
2287                                                         gui->keyframe_menu->activate_menu();
2288                                                         rerender = 1; // the position changes
2289                                                 }
2290                                                 else if( autos )
2291                                                 {
2292                                                         gui->keyframe_hide->update(autos);
2293                                                         gui->keyframe_hide->activate_menu();
2294                                                         rerender = 1; // the position changes
2295                                                 }
2296                                                 if(buttonpress == 1 && ctrl_down() &&
2297                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2298                                                         rerender = 1; // special case: curve mode changed
2299                                         }
2300                                 }
2301                         }
2302                 }
2303
2304                 if(!result && session->auto_conf->plugins) {
2305                         Plugin *plugin;
2306                         KeyFrame *keyframe;
2307                         result = do_plugin_autos(track, cursor_x, cursor_y,
2308                                 draw, buttonpress, plugin, keyframe);
2309                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2310                                 rerender = 1;
2311                         }
2312                         if(result && (buttonpress == 1)) {
2313                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2314                                 update_drag_caption();
2315                                 rerender = 1;
2316                         }
2317                         else if (result && (buttonpress == 3)) {
2318                                 gui->keyframe_menu->update(plugin, keyframe);
2319                                 gui->keyframe_menu->activate_menu();
2320                                 rerender = 1; // the position changes
2321                         }
2322                 }
2323         }
2324
2325 // Final pass to trap event
2326         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2327                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2328                         mwindow->session->current_operation == auto_operations[i]) {
2329                         result = 1;
2330                         break;
2331                 }
2332         }
2333
2334         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2335                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2336                 result = 1;
2337         }
2338
2339         update_cursor = 1;
2340         if(result) {
2341                 new_cursor = UPRIGHT_ARROW_CURSOR;
2342         }
2343
2344         return result;
2345 }
2346
2347 void TrackCanvas::draw_keyframe_reticle()
2348 {
2349         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2350         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2351
2352         int current_op = mwindow->session->current_operation, dragging = 0;
2353         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2354                 if( current_op == auto_operations[i] ) dragging = 1;
2355         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2356
2357         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2358                 mwindow->session->drag_auto->autos->autoidx : -1;
2359
2360         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2361             keyframe_hairline == HAIRLINE_DRAGGING ) {
2362                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2363                 return;
2364         }
2365
2366         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2367             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2368                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2369                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2370                         Automation *automation = track->automation;
2371                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2372                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2373                                 // automation visible
2374                                 Autos *autos = automation->autos[i];
2375                                 if( !autos ) continue;
2376                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2377                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2378                                      auto_keyframe = auto_keyframe->next ) {
2379                                         draw_hairline(auto_keyframe, BLUE, show);
2380                                 }
2381                         }
2382                 }
2383
2384                 if( dragging )
2385                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2386         }
2387 }
2388
2389 void TrackCanvas::draw_auto(Auto *current,
2390         int x,
2391         int y,
2392         int center_pixel,
2393         int zoom_track)
2394 {
2395         int x1, y1, x2, y2;
2396
2397         x1 = x - HANDLE_W / 2;
2398         x2 = x + HANDLE_W / 2;
2399         y1 = center_pixel + y - HANDLE_W / 2;
2400         y2 = center_pixel + y + HANDLE_W / 2;
2401
2402         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2403         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2404
2405         draw_box(x1, y1, x2 - x1, y2 - y1);
2406 }
2407
2408
2409 // This draws lines for bezier in & out controls
2410 void TrackCanvas::draw_cropped_line(int x1,
2411         int y1,
2412         int x2,
2413         int y2,
2414         int min_y,
2415         int max_y)
2416 {
2417
2418
2419 // Don't care about x since it is clipped by the window.
2420 // Put y coords in ascending order
2421         if(y2 < y1) {
2422                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2423                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2424         }
2425
2426
2427
2428         double slope = (double)(x2 - x1) / (y2 - y1);
2429 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2430         if(y1 < min_y) {
2431                 x1 = (int)(x1 + (min_y - y1) * slope);
2432                 y1 = min_y;
2433         }
2434         else if(y1 >= max_y) {
2435                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2436                 y1 = max_y - 1;
2437         }
2438
2439         if(y2 >= max_y) {
2440                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2441                 y2 = max_y - 1;
2442         }
2443         else if(y2 < min_y) {
2444                 x2 = (int)(x2 + (min_y - y2) * slope);
2445                 y1 = min_y;
2446         }
2447
2448
2449 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2450         if( y1 >= min_y && y1 < max_y &&
2451             y2 >= min_y && y2 < max_y )
2452                 draw_line(x1, y1, x2, y2);
2453 }
2454
2455
2456 void TrackCanvas::draw_floatauto(FloatAuto *current,
2457         int x,
2458         int y,
2459         int in_x,
2460         int in_y,
2461         int out_x,
2462         int out_y,
2463         int center_pixel,
2464         int zoom_track,
2465         int color)
2466 {
2467         int x1 = x - HANDLE_W / 2; // Center
2468         int x2 = x + HANDLE_W / 2;
2469         int y1 = center_pixel + y - HANDLE_H / 2;
2470         int y2 = center_pixel + y + HANDLE_H / 2;
2471         int ymin = center_pixel - zoom_track / 2;
2472         int ymax = center_pixel + zoom_track / 2;
2473         CLAMP(y1, ymin, ymax);
2474         CLAMP(y2, ymin, ymax);
2475
2476         if( y2-1 > y1 ) {
2477                 if( current->curve_mode == FloatAuto::LINEAR ) {
2478                         draw_box(x1, y1, x2 - x1, y2 - y1);
2479                 }
2480                 else {
2481                         ArrayList<int> polygon_x;
2482                         ArrayList<int> polygon_y;
2483                         polygon_x.append((x1 + x2) / 2 + 1);
2484                         polygon_y.append(y1 + 1);
2485                         polygon_x.append(x2 + 1);
2486                         polygon_y.append((y1 + y2) / 2 + 1);
2487                         polygon_x.append((x1 + x2) / 2 + 1);
2488                         polygon_y.append(y2 + 1);
2489                         polygon_x.append(x1 + 1);
2490                         polygon_y.append((y1 + y2) / 2 + 1);
2491                         fill_polygon(&polygon_x, &polygon_y);
2492                 }
2493         }
2494
2495 // show bezier control points (only) if this
2496 // floatauto doesn't adjust it's tangents automatically
2497         if(current->curve_mode != FloatAuto::FREE &&
2498            current->curve_mode != FloatAuto::TFREE)
2499                 return;
2500
2501         if(in_x != x)
2502                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2503         if(out_x != x)
2504                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2505 }
2506
2507 inline int quantize(float f) { return (int)floor(f + 0.5); }
2508
2509 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2510         int x, int y, int cp_x, int cp_y, int center_pixel,
2511         int zoom_track, int color)
2512 // draw the tangent and a handle for given bézier ctrl point
2513 {
2514         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2515
2516         float slope = (float)(cp_y - y)/(cp_x - x);
2517         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2518         if(slope != 0)
2519                 cp_x = x + quantize((cp_y - y) / slope);
2520
2521         y    += center_pixel;
2522         cp_y += center_pixel;
2523
2524         // drawing the tangent as a dashed line...
2525         int const dash = HANDLE_W;
2526         int const gap  = HANDLE_W / 2;
2527         float sx = 3 * (cp_x - x) / 4.;
2528         float ex = 0;
2529
2530         // q is the x displacement for a unit line of slope
2531         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2532
2533         float dist = 1/q * sx;
2534         if( dist > dash )
2535                 ex = sx - q * dash;
2536
2537         set_color(color);
2538         do {
2539                 float sy = slope * sx, ey = slope * ex;
2540                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2541                 sx = ex - q * gap;
2542                 ex = sx - q * dash;
2543         } while(q*ex > 0);
2544
2545         if(handle_visible)
2546         {
2547                 int r = HANDLE_W / 2;
2548                 int cp_x1 = cp_x - r;
2549                 int cp_y1 = cp_y - r;
2550                 set_color(BLACK);
2551                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2552                 set_color(color);
2553                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2554         }
2555 }
2556
2557
2558 int TrackCanvas::test_auto(Auto *current,
2559         int x, int y, int center_pixel, int zoom_track,
2560         int cursor_x, int cursor_y, int buttonpress)
2561 {
2562         int x1, y1, x2, y2;
2563         int result = 0;
2564
2565         x1 = x - HANDLE_W / 2;
2566         x2 = x + HANDLE_W / 2;
2567         y1 = center_pixel + y - HANDLE_H / 2;
2568         y2 = center_pixel + y + HANDLE_H / 2;
2569         int ymin = center_pixel - zoom_track / 2;
2570         int ymax = center_pixel + zoom_track / 2;
2571         CLAMP(y1, ymin, ymax);
2572         CLAMP(y2, ymin, ymax);
2573
2574         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2575         {
2576                 if(buttonpress && buttonpress != 3)
2577                 {
2578                         mwindow->session->drag_auto = current;
2579                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2580                         // Toggle Autos don't respond to vertical zoom, they always show up
2581                         // with "on" == 100% == line on top
2582                         mwindow->session->drag_start_position = current->position;
2583                         mwindow->session->drag_origin_x = cursor_x;
2584                         mwindow->session->drag_origin_y = cursor_y;
2585                 }
2586                 result = 1;
2587         }
2588
2589         if(buttonpress && buttonpress != 3 && result)
2590         {
2591 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2592                 mwindow->undo->update_undo_before();
2593         }
2594
2595         return result;
2596 }
2597
2598 // some Helpers for test_floatauto(..)
2599 // and for dragging the tangents/ctrl points
2600 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2601         float cursor_x, float cursor_y)
2602 {
2603 // Control point switched off?
2604         if( x0 == ctrl_x ) return 0.0;
2605         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2606         double x = cursor_x-x0, y = cursor_y-y0;
2607 // wrong side of ctrl handle
2608         if( x*x1 < 0 ) return 0.0;
2609 // outside handle radius
2610         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2611         double xx1 = x1*x1, yy1 = y1*y1;
2612         double xx = x*x, yy = y*y;
2613 // distance squared from cursor to cursor projected to line from ctrl to handle
2614 //   along a line perpendicular to line from ctrl to handle (closest approach)
2615 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2616         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2617         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2618 }
2619
2620
2621 inline
2622 float levered_position(float position, float ref_pos)
2623 {
2624         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2625                 return 0.0;
2626         return ref_pos / position;
2627 }
2628
2629
2630 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2631 // transforms automation value into current display coords,
2632 // dependant on current automation display range for the given kind of automation
2633 {
2634         if(!mwindow || !mwindow->edl) return 0;
2635         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2636         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2637         float automation_range = automation_max - automation_min;
2638         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2639                 return 0;
2640         return (auto_value - automation_min) / automation_range;
2641 }
2642
2643
2644
2645 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2646         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2647         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2648 {
2649         int result = 0;
2650
2651         int x1 = x - HANDLE_W / 2;
2652         int x2 = x + HANDLE_W / 2;
2653         int y1 = center_pixel + y - HANDLE_W / 2;
2654         int y2 = center_pixel + y + HANDLE_W / 2;
2655         int ymin = center_pixel - zoom_track / 2;
2656         int ymax = center_pixel + zoom_track / 2;
2657         CLAMP(y1, ymin, ymax);
2658         CLAMP(y2, ymin, ymax);
2659
2660         int in_x1 = in_x - HANDLE_W / 2;
2661         int in_x2 = in_x + HANDLE_W / 2;
2662         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2663         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2664         CLAMP(in_y1, ymin, ymax);
2665         CLAMP(in_y2, ymin, ymax);
2666
2667         int out_x1 = out_x - HANDLE_W / 2;
2668         int out_x2 = out_x + HANDLE_W / 2;
2669         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2670         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2671         CLAMP(out_y1, ymin, ymax);
2672         CLAMP(out_y2, ymin, ymax);
2673
2674
2675 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2676 // buttonpress could be the start of a drag operation
2677 #define INIT_DRAG(POS,VAL) \
2678                 mwindow->session->drag_auto = current;      \
2679                 mwindow->session->drag_origin_x = cursor_x;  \
2680                 mwindow->session->drag_origin_y = cursor_y;   \
2681                 mwindow->session->drag_start_position = (POS); \
2682                 mwindow->session->drag_start_percentage = (VAL);
2683
2684 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2685
2686
2687 // without modifier we are manipulating the automation node
2688 // with ALT it's about dragging only the value of the node
2689 // with SHIFT the value snaps to the value of neighbouring nodes
2690 // CTRL indicates we are rather manipulating the tangent(s) of the node
2691
2692         if(!ctrl_down())
2693         {
2694                 if( WITHIN(x1,x2,y1,y2))
2695                 {       // cursor hits node
2696                         result = 1;
2697
2698                         if(buttonpress && (buttonpress != 3))
2699                         {
2700                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2701                                 mwindow->session->drag_handle = 0;
2702                 }       }
2703         }
2704         else // ctrl_down()
2705         {
2706                 if( WITHIN(x1,x2,y1,y2))
2707                 {
2708                         result = 1;
2709                         if(buttonpress && (buttonpress != 3))
2710                         {
2711                                 // could be ctrl-click or ctrl-drag
2712                                 // click would cycle through tangent modes
2713                                 ((FloatAuto*)current)->toggle_curve_mode();
2714
2715                                 // drag will start dragging the tangent, if applicable
2716                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2717                                 mwindow->session->drag_handle = 0;
2718                         }
2719                 }
2720
2721                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2722
2723 // Test in control
2724                 if( in_x != x && current->position > 0 &&
2725                         (FloatAuto::FREE == current->curve_mode ||
2726                          FloatAuto::TFREE == current->curve_mode))
2727 // act on in control handle only if
2728 // tangent is significant and is editable (not automatically choosen)
2729                 {
2730                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2731  // either cursor in ctrl-point handle or cursor on tangent line
2732                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2733                                 result = 1;
2734                                 if(buttonpress && (buttonpress != 3)) {
2735                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2736 //                                      lever = 1.0;
2737                                         mwindow->session->drag_handle = 1;
2738                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2739                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2740                                                   value_to_percentage(new_invalue, autogrouptype))
2741                                 }
2742                         }
2743                 }
2744
2745 // Test out control
2746                 if(out_x != x &&
2747                         (FloatAuto::FREE == current->curve_mode ||
2748                          FloatAuto::TFREE == current->curve_mode))
2749 // act on out control only if tangent is significant and is editable
2750                 {
2751                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2752                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2753                                 result = 1;
2754                                 if(buttonpress && (buttonpress != 3)) {
2755                                         if(lever == 0.0) lever=1.0;
2756 //                                      lever = 1.0;
2757                                         mwindow->session->drag_handle = 2;
2758                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2759                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2760                                                   value_to_percentage(new_outvalue, autogrouptype))
2761                                 }
2762                         }
2763                 }
2764         } // end ctrl_down()
2765
2766 #undef WITHIN
2767 #undef INIT_DRAG
2768
2769 // if(buttonpress)
2770 // 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",
2771 // mwindow->session->drag_handle,
2772 // ctrl_down(),
2773 // cursor_x,
2774 // cursor_y,
2775 // x1, x2, y1, y2);
2776         if(buttonpress && (buttonpress != 3) && result)
2777         {
2778                 mwindow->undo->update_undo_before();
2779         }
2780
2781         return result;
2782 }
2783
2784 static int is_linear(FloatAuto *prev, FloatAuto *next)
2785 {
2786         if( !prev || !next ) return 1;
2787         if( prev->curve_mode == FloatAuto::LINEAR ) return 1;
2788         int64_t ipos = prev->get_control_in_position();
2789         int64_t opos = prev->get_control_out_position();
2790         if( !ipos && !opos ) return 1;
2791         if( !ipos || !opos ) return 0;
2792         float ival = prev->get_control_in_value();
2793         float oval = prev->get_control_out_value();
2794         float cval = prev->get_value(), nval = next->get_value();
2795         if( !ival && !oval && EQUIV(cval, nval) ) return 1;
2796         float ig = ival / ipos, og = oval / opos;
2797         int64_t cpos = prev->position, npos = next->position;
2798         float g = (nval - cval) / (npos - cpos);
2799         if( EQUIV(ig, g) && EQUIV(og, g) ) return 1;
2800         return 0;
2801 }
2802
2803 // Get the float value & y for position x on the canvas
2804 #define X_TO_FLOATLINE(x) \
2805         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2806         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2807 /* Call by reference fails for some reason here */ \
2808         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2809         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2810         double position = unit_start + x * zoom_units; \
2811         double value = 0; \
2812         if(position2 > position1) \
2813         { \
2814                 value = value1 + \
2815                         (value2 - value1) * \
2816                         (position - position1) / \
2817                         (position2 - position1); \
2818         } \
2819         else \
2820         { \
2821                 value = value1; \
2822         } \
2823         AUTOMATIONCLAMPS(value, autogrouptype); \
2824         int y = center_pixel + \
2825                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2826
2827
2828 void TrackCanvas::draw_floatline(int center_pixel,
2829         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2830         double unit_start, double zoom_units, double yscale,
2831         int x1, int y1, int x2, int y2,
2832         int color, int autogrouptype)
2833 {
2834         int ytop = center_pixel - yscale / 2;
2835         int ybot = center_pixel + yscale / 2 - 1;
2836         y1 += center_pixel;  y2 += center_pixel;
2837         if( (y1 < ytop && y1 >= ybot) && (y2 < ytop || y2 >= ybot) ) return;
2838 // check for line draw
2839         if( is_linear(previous, next) ) {
2840                 draw_line(x1, y1, x2, y2);
2841                 return;
2842         }
2843
2844 // Solve bezier equation for either every pixel or a certain large number of
2845 // points.
2846
2847 // Not using slope intercept
2848         x1 = MAX(0, x1);
2849         draw_pixel(x1, y1);
2850         int prev_y = y1;
2851
2852 // Call by reference fails for some reason here
2853         FloatAuto *previous1 = previous, *next1 = next;
2854         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2855         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2856         float automation_range = automation_max - automation_min;
2857         for( int x=x1; x<x2; ++x ) {
2858 // Interpolate value between frames
2859                 X_TO_FLOATLINE(x)
2860
2861                 if( /* x > x1 && */ y >= ytop && y < ybot ) {
2862                         int x1 = x-1, y1 = prev_y, x2 = x, y2 = y;
2863                         if( abs(y2-y1) < 2 )
2864                                 draw_pixel(x2, y2);
2865                         else
2866                                 draw_bline(x1, y1, x2, y2);
2867                 }
2868                 prev_y = y;
2869         }
2870 }
2871
2872
2873 int TrackCanvas::test_floatline(int center_pixel,
2874                 FloatAutos *autos,
2875                 double unit_start,
2876                 double zoom_units,
2877                 double yscale,
2878                 int x1,
2879                 int x2,
2880                 int cursor_x,
2881                 int cursor_y,
2882                 int buttonpress,
2883                 int autogrouptype)
2884 {
2885         int result = 0;
2886
2887
2888         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2889         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2890         float automation_range = automation_max - automation_min;
2891         FloatAuto *previous1 = 0, *next1 = 0;
2892         X_TO_FLOATLINE(cursor_x);
2893
2894         if(cursor_x >= x1 &&
2895                 cursor_x < x2 &&
2896                 cursor_y >= y - HANDLE_W / 2 &&
2897                 cursor_y < y + HANDLE_W / 2 &&
2898                 !ctrl_down())
2899         {
2900                 result = 1;
2901
2902 // Menu
2903                 if(buttonpress == 3)
2904                 {
2905                 }
2906                 else
2907 // Create keyframe
2908                 if(buttonpress)
2909                 {
2910                         Auto *current;
2911                         mwindow->undo->update_undo_before();
2912                         double position = autos->track->from_units(position1);
2913                         position = mwindow->edl->align_to_frame(position, 0);
2914                         int64_t new_position = autos->track->to_units(position,0);
2915                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2916                         ((FloatAuto*)current)->set_value(value);
2917                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2918                         mwindow->session->drag_start_position = current->position;
2919                         mwindow->session->drag_origin_x = cursor_x;
2920                         mwindow->session->drag_origin_y = cursor_y;
2921                         mwindow->session->drag_handle = 0;
2922                 }
2923         }
2924
2925
2926         return result;
2927 }
2928
2929
2930 void TrackCanvas::fill_ganged_autos(int all, float change, Track *skip, FloatAuto *fauto)
2931 {
2932         if( !skip->gang ) return;
2933 // Handles the special case of modifying a fadeauto
2934 // when there are ganged faders on several tracks
2935         double position = skip->from_units(fauto->position);
2936         int autoidx = fauto->autos->autoidx;
2937
2938         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2939                 if( (all || current->data_type == skip->data_type) &&
2940                     current->gang && current->record && current != skip ) {
2941                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2942                         float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2943                         float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2944                         int64_t current_position = current->to_units(position, 1);
2945                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
2946                         if( keyframe ) {
2947 // keyframe exists, just change it
2948                                 float value = keyframe->get_value();
2949                                 float new_value = value + change;
2950                                 CLAMP(new_value, auto_min, auto_max);
2951                                 keyframe->adjust_to_new_coordinates(current_position, new_value);
2952                         }
2953                         else {
2954 // create keyframe on neighbouring track at the point in time given by fauto
2955                                 FloatAuto *previous = 0, *next = 0;
2956                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2957                                 float new_value = value + change;
2958                                 CLAMP(new_value, auto_min, auto_max);
2959                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2960                                 keyframe->set_value(new_value);
2961                         }
2962                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2963                 }
2964         }
2965 }
2966
2967 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
2968 {
2969         double position = skip->from_units(fauto->position);
2970 // Move the gangs
2971         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2972                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2973                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2974                 float new_value = keyframe->get_value() + change;
2975                 CLAMP(new_value,
2976                       mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2977                       mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2978                 keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2979         }
2980 }
2981
2982 void TrackCanvas::clear_ganged_autos()
2983 {
2984 // remove the gangs
2985         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2986                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2987                 keyframe->autos->remove_nonsequential(keyframe);
2988         }
2989         mwindow->session->drag_auto_gang->remove_all();
2990 }
2991
2992
2993 void TrackCanvas::draw_toggleline(int center_pixel,
2994         int x1,
2995         int y1,
2996         int x2,
2997         int y2)
2998 {
2999         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
3000
3001         if(y2 != y1)
3002         {
3003                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
3004         }
3005 }
3006
3007 int TrackCanvas::test_toggleline(Autos *autos,
3008         int center_pixel,
3009         int x1,
3010         int y1,
3011         int x2,
3012         int y2,
3013         int cursor_x,
3014         int cursor_y,
3015         int buttonpress)
3016 {
3017         int result = 0;
3018         if(cursor_x >= x1 && cursor_x < x2)
3019         {
3020                 int miny = center_pixel + y1 - HANDLE_W / 2;
3021                 int maxy = center_pixel + y1 + HANDLE_W / 2;
3022                 if(cursor_y >= miny && cursor_y < maxy)
3023                 {
3024                         result = 1;
3025
3026 // Menu
3027                         if(buttonpress == 3)
3028                         {
3029                         }
3030                         else
3031 // Insert keyframe
3032                         if(buttonpress)
3033                         {
3034                                 Auto *current;
3035                                 double position = (double)(cursor_x +
3036                                                 mwindow->edl->local_session->view_start[pane->number]) *
3037                                         mwindow->edl->local_session->zoom_sample /
3038                                         mwindow->edl->session->sample_rate;
3039                                 int64_t unit_position = autos->track->to_units(position, 0);
3040                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
3041
3042                                 mwindow->undo->update_undo_before();
3043
3044                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
3045                                 ((IntAuto*)current)->value = new_value;
3046                                 // Toggle Autos don't respond to vertical zoom, they always show up
3047                                 // with "on" == 100% == line on top
3048                                 mwindow->session->drag_start_percentage = (float)new_value;
3049                                 mwindow->session->drag_start_position = current->position;
3050                                 mwindow->session->drag_origin_x = cursor_x;
3051                                 mwindow->session->drag_origin_y = cursor_y;
3052                         }
3053                 }
3054         };
3055
3056         return result;
3057 }
3058
3059 void TrackCanvas::calculate_viewport(Track *track,
3060         double &view_start,   // Seconds
3061         double &unit_start,
3062         double &view_end,     // Seconds
3063         double &unit_end,
3064         double &yscale,
3065         int &center_pixel,
3066         double &zoom_sample,
3067         double &zoom_units)
3068 {
3069
3070         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
3071                 mwindow->edl->local_session->zoom_sample /
3072                 mwindow->edl->session->sample_rate;
3073         unit_start = track->to_doubleunits(view_start);
3074         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
3075                 get_w()) *
3076                 mwindow->edl->local_session->zoom_sample /
3077                 mwindow->edl->session->sample_rate;
3078         unit_end = track->to_doubleunits(view_end);
3079
3080         int y = track->y_pixel
3081                         - mwindow->edl->local_session->track_start[pane->number];
3082         int has_titles = track->show_titles();
3083         int has_assets = track->show_assets();
3084         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
3085         double asset_h = resource_h();
3086         double title_h = mwindow->theme->title_h;
3087         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
3088         double dy = has_titles ?
3089                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2) :
3090                 ( has_assets ? asset_h/2 : 0) ;
3091         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
3092         yscale = ys;
3093         center_pixel = y + dy;
3094
3095         zoom_sample = mwindow->edl->local_session->zoom_sample;
3096         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
3097 }
3098
3099 float TrackCanvas::percentage_to_value(float percentage,
3100         int is_toggle,
3101         Auto *reference,
3102         int autogrouptype)
3103 {
3104         float result;
3105         if(is_toggle)
3106         {
3107                 if(percentage > 0.5)
3108                         result = 1;
3109                 else
3110                         result = 0;
3111         }
3112         else
3113         {
3114                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3115                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3116                 float automation_range = automation_max - automation_min;
3117
3118                 result = percentage * automation_range + automation_min;
3119                 if(reference)
3120                 {
3121                         FloatAuto *ptr = (FloatAuto*)reference;
3122                         result -= ptr->get_value();
3123                 }
3124 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
3125         }
3126         return result;
3127 }
3128
3129
3130 void TrackCanvas::calculate_auto_position(double *x, double *y,
3131         double *in_x, double *in_y, double *out_x, double *out_y,
3132         Auto *current, double unit_start, double zoom_units, double yscale,
3133         int autogrouptype)
3134 {
3135         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
3136         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
3137         float automation_range = automation_max - automation_min;
3138         FloatAuto *ptr = (FloatAuto*)current;
3139         *x = (double)(ptr->position - unit_start) / zoom_units;
3140         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
3141
3142         if(in_x) {
3143 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
3144                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
3145         }
3146
3147         if(in_y) {
3148                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
3149                                 automation_min) / automation_range - 0.5) * -yscale;
3150         }
3151
3152         if(out_x) {
3153 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
3154                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
3155         }
3156
3157         if(out_y) {
3158                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
3159                                  automation_min) / automation_range - 0.5) * -yscale;
3160         }
3161 }
3162
3163
3164 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
3165                 int draw, int buttonpress, int x_offset, int y_offset, int color,
3166                 Auto* &auto_instance, int autogrouptype)
3167 {
3168         int result = 0;
3169         int center_pixel, draw_auto;
3170         double view_start, unit_start;
3171         double view_end, unit_end, yscale;
3172         double zoom_sample, zoom_units;
3173         double in_x2, in_y2, out_x2, out_y2;
3174         double slope;
3175         //int skip = 0;
3176
3177         auto_instance = 0;
3178
3179         if(draw) set_color(color);
3180
3181         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3182                         yscale, center_pixel, zoom_sample, zoom_units);
3183
3184 // Get first auto before start
3185         Auto *current = 0, *previous = 0;
3186
3187         for( current = autos->last;
3188                 current && current->position >= unit_start;
3189                 current = PREVIOUS ) ;
3190
3191         Auto *first_auto = current ? current :
3192                  autos->first ? autos->first : autos->default_auto;
3193
3194         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
3195         if( first_auto ) {
3196                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3197                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
3198         }
3199         if( current )
3200                 current = NEXT;
3201         else {
3202                 current = autos->first;
3203                 ax = 0;
3204         }
3205
3206         do {
3207                 //skip = 0;
3208                 draw_auto = 1;
3209
3210                 if(current) {
3211                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
3212                                 current, unit_start, zoom_units, yscale, autogrouptype);
3213                 }
3214                 else {
3215                         ax2 = get_w();
3216                         ay2 = ay;
3217                         //skip = 1;
3218                 }
3219
3220                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3221
3222                 if(ax2 > get_w()) {
3223                         draw_auto = 0;
3224                         ax2 = get_w();
3225                         ay2 = ay + slope * (get_w() - ax);
3226                 }
3227
3228                 if(ax < 0) {
3229                         ay = ay + slope * (0 - ax);
3230                         ax = 0;
3231                 }
3232
3233 // Draw or test handle
3234                 if( current && !result && current != autos->default_auto ) {
3235                         if( !draw && track->record ) {
3236                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
3237                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
3238                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3239                                         buttonpress, autogrouptype);
3240                                 if( result )
3241                                         auto_instance = current;
3242                         }
3243                         if( draw && draw_auto ) {
3244                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
3245                                         (int)in_x2 + x_offset, (int)in_y2,
3246                                         (int)out_x2 + x_offset, (int)out_y2,
3247                                         (int)center_pixel + y_offset, (int)yscale, color);
3248                         }
3249                 }
3250
3251 // Draw or test joining line
3252                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
3253                         result = test_floatline(center_pixel,
3254                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3255 // Exclude auto coverage from the end of the line.  The auto overlaps
3256                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3257                                 buttonpress, autogrouptype);
3258                 }
3259                 if( draw )
3260                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3261                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3262                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3263                                 color, autogrouptype);
3264
3265                 if( current ) {
3266                         previous = current;
3267                         current = NEXT;
3268                 }
3269
3270                 ax = ax2;  ay = ay2;
3271         } while( current && current->position <= unit_end && !result );
3272
3273         if( ax < get_w() && !result ) {
3274                 ax2 = get_w();  ay2 = ay;
3275                 if(!draw && track->record /* && buttonpress != 3 */ ) {
3276                         result = test_floatline(center_pixel,
3277                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3278                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3279                                 buttonpress, autogrouptype);
3280                 }
3281                 if( draw )
3282                         draw_floatline(center_pixel,
3283                                 (FloatAuto*)previous, (FloatAuto*)current,
3284                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3285                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3286                                 color, autogrouptype);
3287         }
3288
3289         return result;
3290 }
3291
3292
3293 int TrackCanvas::do_int_autos(Track *track,
3294                 Autos *autos,
3295                 int cursor_x,
3296                 int cursor_y,
3297                 int draw,
3298                 int buttonpress,
3299                 int x_offset,
3300                 int y_offset,
3301                 int color,
3302                 Auto *&auto_instance)
3303 {
3304         int result = 0;
3305         double view_start;
3306         double unit_start;
3307         double view_end;
3308         double unit_end;
3309         double yscale;
3310         int center_pixel;
3311         double zoom_sample;
3312         double zoom_units;
3313         double ax, ay, ax2, ay2;
3314
3315         auto_instance = 0;
3316
3317         if(draw) set_color(color);
3318
3319         calculate_viewport(track,
3320                 view_start,
3321                 unit_start,
3322                 view_end,
3323                 unit_end,
3324                 yscale,
3325                 center_pixel,
3326                 zoom_sample,
3327                 zoom_units);
3328
3329
3330         double high = -yscale * 0.8 / 2;
3331         double low = yscale * 0.8 / 2;
3332
3333 // Get first auto before start
3334         Auto *current;
3335         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3336                 ;
3337
3338         if(current)
3339         {
3340                 ax = 0;
3341                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3342                 current = NEXT;
3343         }
3344         else
3345         {
3346                 current = autos->first ? autos->first : autos->default_auto;
3347                 if(current)
3348                 {
3349                         ax = 0;
3350                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3351                 }
3352                 else
3353                 {
3354                         ax = 0;
3355                         ay = yscale;
3356                 }
3357         }
3358
3359         do
3360         {
3361                 if(current)
3362                 {
3363                         ax2 = (double)(current->position - unit_start) / zoom_units;
3364                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3365                 }
3366                 else
3367                 {
3368                         ax2 = get_w();
3369                         ay2 = ay;
3370                 }
3371
3372                 if(ax2 > get_w()) ax2 = get_w();
3373
3374                 if(current && !result)
3375                 {
3376                         if(current != autos->default_auto)
3377                         {
3378                                 if(!draw)
3379                                 {
3380                                         if(track->record)
3381                                         {
3382                                                 result = test_auto(current,
3383                                                         (int)ax2,
3384                                                         (int)ay2,
3385                                                         (int)center_pixel,
3386                                                         (int)yscale,
3387                                                         cursor_x,
3388                                                         cursor_y,
3389                                                         buttonpress);
3390                                                 if (result)
3391                                                         auto_instance = current;
3392                                         }
3393                                 }
3394                                 else
3395                                         draw_auto(current,
3396                                                 (int)ax2 + x_offset,
3397                                                 (int)ay2 + y_offset,
3398                                                 (int)center_pixel,
3399                                                 (int)yscale);
3400                         }
3401
3402                         current = NEXT;
3403                 }
3404
3405                 if(!draw)
3406                 {
3407                         if(!result)
3408                         {
3409                                 if(track->record /* && buttonpress != 3 */)
3410                                 {
3411                                         result = test_toggleline(autos,
3412                                                 center_pixel,
3413                                                 (int)ax,
3414                                                 (int)ay,
3415                                                 (int)ax2,
3416                                                 (int)ay2,
3417                                                 cursor_x,
3418                                                 cursor_y,
3419                                                 buttonpress);
3420                                 }
3421                         }
3422                 }
3423                 else
3424                         draw_toggleline(center_pixel + y_offset,
3425                                 (int)ax,
3426                                 (int)ay,
3427                                 (int)ax2,
3428                                 (int)ay2);
3429
3430                 ax = ax2;
3431                 ay = ay2;
3432         }while(current && current->position <= unit_end && !result);
3433
3434         if(ax < get_w() && !result)
3435         {
3436                 ax2 = get_w();
3437                 ay2 = ay;
3438                 if(!draw)
3439                 {
3440                         if(track->record /* && buttonpress != 3 */)
3441                         {
3442                                 result = test_toggleline(autos,
3443                                         center_pixel,
3444                                         (int)ax,
3445                                         (int)ay,
3446                                         (int)ax2,
3447                                         (int)ay2,
3448                                         cursor_x,
3449                                         cursor_y,
3450                                         buttonpress);
3451                         }
3452                 }
3453                 else
3454                         draw_toggleline(center_pixel + y_offset,
3455                                 (int)ax,
3456                                 (int)ay,
3457                                 (int)ax2,
3458                                 (int)ay2);
3459         }
3460         return result;
3461 }
3462
3463 int TrackCanvas::do_autos(Track *track,
3464                 Autos *autos,
3465                 int cursor_x,
3466                 int cursor_y,
3467                 int draw,
3468                 int buttonpress,
3469                 BC_Pixmap *pixmap,
3470                 Auto * &auto_instance,
3471                 int &rerender)
3472 {
3473         int result = 0;
3474
3475         double view_start;
3476         double unit_start;
3477         double view_end;
3478         double unit_end;
3479         double yscale;
3480         int center_pixel;
3481         double zoom_sample;
3482         double zoom_units;
3483
3484         calculate_viewport(track,
3485                 view_start,
3486                 unit_start,
3487                 view_end,
3488                 unit_end,
3489                 yscale,
3490                 center_pixel,
3491                 zoom_sample,
3492                 zoom_units);
3493
3494         Auto *current;
3495         auto_instance = 0;
3496
3497         for(current = autos->first; current && !result; current = NEXT)
3498         {
3499                 if(current->position >= unit_start && current->position < unit_end)
3500                 {
3501                         int64_t x, y;
3502                         x = (int64_t)((double)(current->position - unit_start) /
3503                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3504                         y = center_pixel - pixmap->get_h() / 2;
3505
3506                         if(!draw)
3507                         {
3508                                 if(cursor_x >= x && cursor_y >= y &&
3509                                         cursor_x < x + pixmap->get_w() &&
3510                                         cursor_y < y + pixmap->get_h())
3511                                 {
3512                                         result = 1;
3513                                         auto_instance = current;
3514
3515                                         if(buttonpress && (buttonpress != 3))
3516                                         {
3517                                                 mwindow->session->drag_auto = current;
3518                                                 mwindow->session->drag_start_position = current->position;
3519                                                 mwindow->session->drag_origin_x = cursor_x;
3520                                                 mwindow->session->drag_origin_y = cursor_y;
3521
3522                                                 double position = autos->track->from_units(current->position);
3523                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3524                                                         mwindow->edl->local_session->get_selectionend(1)) /
3525                                                         2;
3526
3527                                                 if(!shift_down())
3528                                                 {
3529                                                         mwindow->edl->local_session->set_selectionstart(position);
3530                                                         mwindow->edl->local_session->set_selectionend(position);
3531                                                 }
3532                                                 else
3533                                                 if(position < center)
3534                                                 {
3535                                                         mwindow->edl->local_session->set_selectionstart(position);
3536                                                 }
3537                                                 else
3538                                                         mwindow->edl->local_session->set_selectionend(position);
3539
3540                                                 rerender = 1;
3541                                         }
3542                                 }
3543                         }
3544                         else
3545                                 draw_pixmap(pixmap, x, y);
3546                 }
3547         }
3548
3549
3550         return result;
3551 }
3552
3553 // so this means it is always >0 when keyframe is found
3554 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3555                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3556                 KeyFrame* &keyframe_instance)
3557 {
3558         int result = 0;
3559
3560         double view_start;
3561         double unit_start;
3562         double view_end;
3563         double unit_end;
3564         double yscale;
3565         int center_pixel;
3566         double zoom_sample;
3567         double zoom_units;
3568
3569         if(!track->expand_view) return 0;
3570
3571         calculate_viewport(track,
3572                 view_start,
3573                 unit_start,
3574                 view_end,
3575                 unit_end,
3576                 yscale,
3577                 center_pixel,
3578                 zoom_sample,
3579                 zoom_units);
3580
3581
3582
3583         for(int i = 0; i < track->plugin_set.total && !result; i++)
3584         {
3585                 PluginSet *plugin_set = track->plugin_set.values[i];
3586                 int center_pixel = track->y_pixel -
3587                         mwindow->edl->local_session->track_start[pane->number];
3588                 if( track->show_titles() )
3589                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3590                 if( track->show_assets() )
3591                         center_pixel += resource_h();
3592                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3593
3594                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3595                         plugin && !result;
3596                         plugin = (Plugin*)plugin->next)
3597                 {
3598                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3599                                 keyframe && !result;
3600                                 keyframe = (KeyFrame*)keyframe->next)
3601                         {
3602 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3603                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3604                                 {
3605                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3606                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3607
3608 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3609                                         if(!draw)
3610                                         {
3611                                                 if(cursor_x >= x && cursor_y >= y &&
3612                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3613                                                         cursor_y < y + keyframe_pixmap->get_h())
3614                                                 {
3615                                                         result = 1;
3616                                                         keyframe_plugin = plugin;
3617                                                         keyframe_instance = keyframe;
3618
3619                                                         if(buttonpress)
3620                                                         {
3621                                                                 mwindow->session->drag_auto = keyframe;
3622                                                                 mwindow->session->drag_start_position = keyframe->position;
3623                                                                 mwindow->session->drag_origin_x = cursor_x;
3624                                                                 mwindow->session->drag_origin_y = cursor_y;
3625
3626                                                                 double position = track->from_units(keyframe->position);
3627                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3628                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3629                                                                         2;
3630
3631                                                                 if(!shift_down())
3632                                                                 {
3633                                                                         mwindow->edl->local_session->set_selectionstart(position);
3634                                                                         mwindow->edl->local_session->set_selectionend(position);
3635                                                                 }
3636                                                                 else
3637                                                                 if(position < center)
3638                                                                 {
3639                                                                         mwindow->edl->local_session->set_selectionstart(position);
3640                                                                 }
3641                                                                 else
3642                                                                         mwindow->edl->local_session->set_selectionend(position);
3643                                                         }
3644                                                 }
3645                                         }
3646                                         else
3647                                                 draw_pixmap(keyframe_pixmap,
3648                                                         x,
3649                                                         y);
3650                                 }
3651                         }
3652                 }
3653         }
3654
3655
3656
3657 //      if(buttonpress && buttonpress != 3 && result)
3658 //      {
3659 //              mwindow->undo->update_undo_before();
3660 //      }
3661
3662         return result;
3663 }
3664
3665 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
3666 {
3667         Track *track = auto_keyframe->autos->track;
3668         int autogrouptype = auto_keyframe->autos->autogrouptype;
3669
3670         int center_pixel;
3671         double view_start, unit_start;
3672         double view_end, unit_end, yscale;
3673         double zoom_sample, zoom_units;
3674
3675         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3676                         yscale, center_pixel, zoom_sample, zoom_units);
3677         if( auto_keyframe->position < unit_start ||
3678             auto_keyframe->position >= unit_end )
3679                 return 0;
3680
3681         double ax = 0, ay = 0;
3682         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3683                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3684
3685         set_color(color);
3686         draw_line(ax, 0, ax, get_h());
3687
3688         char text[BCSTRLEN];
3689         if( show ) {
3690                 if( auto_keyframe->is_floatauto() ) {
3691                         FloatAuto *float_auto = (FloatAuto *)auto_keyframe;
3692                         sprintf(text, "%0.2f", float_auto->get_value());
3693                 }
3694                 else if( auto_keyframe->is_intauto() ) {
3695                         IntAuto *int_auto = (IntAuto *)auto_keyframe;
3696                         sprintf(text, "%d", int_auto->value);
3697                 }
3698                 else
3699                         show = 0;
3700         }
3701         if( show ) {
3702                 int font = MEDIUMFONT;
3703                 int tw = get_text_width(font, text)  + xS(TOOLTIP_MARGIN) * 2;
3704                 int th = get_text_height(font, text) + yS(TOOLTIP_MARGIN) * 2;
3705                 set_color(get_resources()->tooltip_bg_color);
3706                 ax += HANDLE_W/2;
3707                 ay += center_pixel + HANDLE_W/2;
3708                 draw_box(ax, ay, tw, th);
3709                 set_color(BLACK);
3710                 draw_rectangle(ax, ay, tw, th);
3711                 set_font(font);
3712                 ax += xS(TOOLTIP_MARGIN);
3713                 ay += yS(TOOLTIP_MARGIN) + get_text_ascent(font);
3714                 draw_text(ax, ay, text);
3715         }
3716         return 0;
3717 }
3718
3719 void TrackCanvas::draw_overlays()
3720 {
3721         int new_cursor, update_cursor, rerender;
3722
3723 // Move background pixmap to foreground pixmap
3724         draw_pixmap(background_pixmap, 0, 0, get_w(), get_h(), 0, 0);
3725
3726 // In/Out points
3727         draw_inout_points();
3728
3729 // Transitions
3730         draw_transitions();
3731
3732 // Plugins
3733         draw_plugins();
3734         draw_hard_edges();
3735
3736 // Loop points
3737         draw_loop_points();
3738         draw_brender_range();
3739
3740 // Highlighted areas
3741         draw_highlighting();
3742
3743 // Automation
3744         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3745
3746 // Selection cursor
3747         if(pane->cursor) pane->cursor->restore(1);
3748
3749 // Handle dragging
3750         draw_drag_handle();
3751
3752 // Playback cursor
3753         draw_playback_cursor();
3754
3755         draw_keyframe_reticle();
3756
3757         show_window(0);
3758 }
3759
3760 int TrackCanvas::activate()
3761 {
3762         if(!active)
3763         {
3764 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3765 //BC_Signals::dump_stack();
3766                 get_top_level()->deactivate();
3767                 active = 1;
3768                 set_active_subwindow(this);
3769                 pane->cursor->activate();
3770                 gui->focused_pane = pane->number;
3771         }
3772         return 0;
3773 }
3774
3775 int TrackCanvas::deactivate()
3776 {
3777         if(active)
3778         {
3779                 active = 0;
3780                 pane->cursor->deactivate();
3781         }
3782         return 0;
3783 }
3784
3785
3786 void TrackCanvas::update_drag_handle()
3787 {
3788         double new_position;
3789         int cursor_x = get_cursor_x();
3790
3791         new_position =
3792                 (double)(cursor_x +
3793                 mwindow->edl->local_session->view_start[pane->number]) *
3794                 mwindow->edl->local_session->zoom_sample /
3795                 mwindow->edl->session->sample_rate;
3796
3797         new_position =
3798                 mwindow->edl->align_to_frame(new_position, 0);
3799
3800         if( ctrl_down() && alt_down() ) {
3801 #define snapper(v) do { \
3802         double pos = (v); \
3803         if( pos < 0 ) break; \
3804         double dist = fabs(new_position - pos); \
3805         if( dist >= snap_min ) break; \
3806         snap_position = pos;  snap_min = dist; \
3807 } while(0)
3808                 double snap_position = new_position;
3809                 double snap_min = DBL_MAX;
3810                 if( mwindow->edl->local_session->inpoint_valid() )
3811                         snapper(mwindow->edl->local_session->get_inpoint());
3812                 if( mwindow->edl->local_session->outpoint_valid() )
3813                         snapper(mwindow->edl->local_session->get_outpoint());
3814                 snapper(mwindow->edl->prev_edit(new_position));
3815                 snapper(mwindow->edl->next_edit(new_position));
3816                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3817                 if( prev_label ) snapper(prev_label->position);
3818                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3819                 if( next_label ) snapper(next_label->position);
3820                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3821                         mwindow->edl->local_session->zoom_sample -
3822                         mwindow->edl->local_session->view_start[pane->number];
3823                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3824                         snapped = 1;
3825                         new_position = snap_position;
3826                 }
3827 #undef snapper
3828         }
3829
3830         if(new_position != mwindow->session->drag_position)
3831         {
3832                 mwindow->session->drag_position = new_position;
3833                 gui->mainclock->update(new_position);
3834                 timebar_position = new_position;
3835                 gui->update_timebar(0);
3836
3837                 EDL *edl = new EDL;
3838                 edl->create_objects();
3839                 edl->copy_all(mwindow->edl);
3840                 MainSession *session = mwindow->session;
3841                 int handle_mode = mwindow->edl->session->edit_handle_mode[session->drag_button];
3842                 edl->modify_edithandles(session->drag_start,
3843                         session->drag_position, session->drag_handle, handle_mode,
3844                         edl->session->labels_follow_edits,
3845                         edl->session->plugins_follow_edits,
3846                         edl->session->autos_follow_edits,
3847                         !session->drag_edit ? 0 : session->drag_edit->group_id);
3848
3849                 double position = -1;
3850                 int show_edge = !session->drag_handle ? 1 : 2;
3851                 switch( handle_mode ) {
3852                 case MOVE_RIPPLE:
3853                 case MOVE_EDGE:
3854                         position = session->drag_handle ?
3855                                 session->drag_position : session->drag_start;
3856                         show_edge = 3 - show_edge;
3857                         break;
3858                 case MOVE_ROLL:
3859                 case MOVE_SLIDE:
3860                         position = session->drag_position;
3861                         break;
3862                 case MOVE_SLIP:
3863                         position = session->drag_start;
3864                         show_edge = 3 - show_edge;
3865                         break;
3866                 }
3867
3868                 if( position < 0 ) position = 0;
3869                 Track *track = session->drag_handle_track();
3870                 int64_t pos = track->to_units(position, 0);
3871                 render_handle_frame(edl, pos, shift_down() ? 0 : show_edge);
3872                 edl->remove_user();
3873         }
3874 }
3875
3876 int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
3877 {
3878         int result = 0;
3879         int64_t left = pos-1;
3880         if( left < 0 ) left = 0;
3881         switch( mode ) {
3882         case 0: {
3883                 VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
3884                 VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
3885                 TransportCommand command;
3886                 command.command = CURRENT_FRAME;
3887                 command.get_edl()->copy_all((EDL *)edl);
3888                 command.change_type = CHANGE_ALL;
3889                 command.realtime = 0;
3890                 Preferences *preferences = mwindow->preferences;
3891                 RenderEngine *render_engine = new RenderEngine(0, preferences, 0, 0);
3892                 CICache *video_cache = new CICache(preferences);
3893                 render_engine->set_vcache(video_cache);
3894                 render_engine->arm_command(&command);
3895                 VRender *vrender = render_engine->vrender;
3896                 result = vrender &&
3897                         !vrender->process_buffer(&vlt, left, 0) &&
3898                         !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
3899                 delete render_engine;
3900                 delete video_cache;
3901                 mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
3902                 Canvas *canvas = mwindow->cwindow->gui->canvas;
3903                 float ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2;
3904                 canvas->get_transfers(edl, ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2);
3905                 float cw = canvas->w/2, ch = canvas->h/2;
3906                 float cdx = (cx2 - cx1)/2, cdy = (cy2 - cy1)/2;
3907                 int cx = cx1/2, cy = cy1/2 + ch/2;
3908                 int ow = ox2 - ox2, oh = oy2 - oy1;
3909                 BC_WindowBase *window = canvas->get_canvas();
3910                 window->set_color(BLACK);
3911                 window->clear_box(0,0, window->get_w(),window->get_h());
3912                 window->draw_vframe(&vlt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);  cx += cw;
3913                 window->draw_vframe(&vrt, cx,cy, cdx,cdy, ox1,oy1, ow,oh);
3914                 window->flash(1);
3915                 mwindow->cwindow->gui->unlock_window();
3916                 break; }
3917         case 1:
3918         case 2: {
3919                 Track *track = mwindow->session->drag_handle_track();
3920                 double position = track->from_units(mode == 1 ? left : pos);
3921                 if( position < 0 ) position = 0;
3922                 PlaybackEngine *playback_engine = mwindow->cwindow->playback_engine;
3923                 if( playback_engine->is_playing_back )
3924                         playback_engine->stop_playback(1);
3925                 edl->local_session->set_selectionstart(position);
3926                 edl->local_session->set_selectionend(position);
3927                 mwindow->cwindow->playback_engine->refresh_frame(CHANGE_EDL, edl, 0);
3928                 break; }
3929         }
3930         return result;
3931 }
3932
3933 int TrackCanvas::update_drag_edit()
3934 {
3935         int result = 0;
3936
3937
3938
3939         return result;
3940 }
3941
3942 int TrackCanvas::get_drag_values(float *percentage,
3943         int64_t *position,
3944         int do_clamp,
3945         int cursor_x,
3946         int cursor_y,
3947         Auto *current)
3948 {
3949         //int x = cursor_x - mwindow->session->drag_origin_x;
3950         //int y = cursor_y - mwindow->session->drag_origin_y;
3951         *percentage = 0;
3952         *position = 0;
3953
3954         if(!current->autos->track->record) return 1;
3955         double view_start;
3956         double unit_start;
3957         double view_end;
3958         double unit_end;
3959         double yscale;
3960         int center_pixel;
3961         double zoom_sample;
3962         double zoom_units;
3963
3964         calculate_viewport(current->autos->track,
3965                 view_start,
3966                 unit_start,
3967                 view_end,
3968                 unit_end,
3969                 yscale,
3970                 center_pixel,
3971                 zoom_sample,
3972                 zoom_units);
3973
3974         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3975                 yscale +
3976                 mwindow->session->drag_start_percentage;
3977         if(do_clamp) CLAMP(*percentage, 0, 1);
3978
3979         *position = Units::to_int64(zoom_units *
3980                 (cursor_x - mwindow->session->drag_origin_x) +
3981                 mwindow->session->drag_start_position + 0.5);
3982
3983         if((do_clamp) && *position < 0) *position = 0;
3984         return 0;
3985 }
3986
3987
3988 #define UPDATE_DRAG_HEAD(do_clamp) \
3989         int result = 0, center_pixel; \
3990         if(!current->autos->track->record) return 0; \
3991         double view_start, unit_start, view_end, unit_end; \
3992         double yscale, zoom_sample, zoom_units; \
3993  \
3994         calculate_viewport(current->autos->track,  \
3995                 view_start, unit_start, view_end, unit_end, \
3996                 yscale, center_pixel, zoom_sample, zoom_units); \
3997  \
3998         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3999                 yscale +  mwindow->session->drag_start_percentage; \
4000         if(do_clamp) CLAMP(percentage, 0, 1); \
4001  \
4002         int64_t position = Units::to_int64(zoom_units * \
4003                 (cursor_x - mwindow->session->drag_origin_x) + \
4004                 mwindow->session->drag_start_position); \
4005         if((do_clamp) && position < 0) position = 0;
4006
4007
4008 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
4009 {
4010         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
4011
4012         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
4013         int x = cursor_x - mwindow->session->drag_origin_x;
4014         int y = cursor_y - mwindow->session->drag_origin_y;
4015         float value, old_value;
4016
4017         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
4018 // not really editing the node, rather start editing the curve
4019 // tangent is editable and drag movement is significant
4020                 if( (FloatAuto::FREE == current->curve_mode ||
4021                      FloatAuto::TFREE==current->curve_mode) &&
4022                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
4023                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
4024         }
4025
4026         switch(mwindow->session->drag_handle) {
4027         case 0: // Center
4028 // Snap to nearby values
4029                 old_value = current->get_value();
4030                 if(shift_down()) {
4031                         double value1, value2, distance1=-1, distance2=-1;
4032
4033                         if(current->previous) {
4034                                 int autogrouptype = current->previous->autos->autogrouptype;
4035                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4036                                 value1 = ((FloatAuto*)current->previous)->get_value();
4037                                 distance1 = fabs(value - value1);
4038                                 current->set_value(value1);
4039                         }
4040
4041                         if(current->next) {
4042                                 int autogrouptype = current->next->autos->autogrouptype;
4043                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
4044                                 value2 = ((FloatAuto*)current->next)->get_value();
4045                                 distance2 = fabs(value - value2);
4046                                 if(!current->previous || distance2 < distance1) {
4047                                         current->set_value(value2);
4048                                 }
4049                         }
4050
4051                         if(!current->previous && !current->next) {
4052                                 current->set_value( ((FloatAutos*)current->autos)->default_);
4053                         }
4054                         value = current->get_value();
4055                 }
4056                 else {
4057                         int autogrouptype = current->autos->autogrouptype;
4058                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
4059                 }
4060
4061                 if(alt_down() && !shift_down())
4062 // ALT constrains movement: fixed position, only changing the value
4063                         position = mwindow->session->drag_start_position;
4064
4065                 if(value != old_value || position != current->position) {
4066                         result = 1;
4067                         float change = value - old_value;
4068                         current->adjust_to_new_coordinates(position, value);
4069                         update_ganged_autos(change, current->autos->track, current);
4070                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4071                         show_message(current, color, ", %.2f", current->get_value());
4072                 }
4073                 break;
4074
4075 // In control
4076         case 1: {
4077                 int autogrouptype = current->autos->autogrouptype;
4078                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4079                 if(value != current->get_control_in_value())
4080                 {
4081                         result = 1;
4082                         // note: (position,value) need not be at the location of the ctrl point,
4083                         // but could be somewhere in between on the curve (or even outward or
4084                         // on the opposit side). We set the new control point such as
4085                         // to point the curve through (position,value)
4086                         current->set_control_in_value(
4087                                 value * levered_position(position - current->position,
4088                                                          current->get_control_in_position()));
4089                         update_ganged_autos(0, current->autos->track, current);
4090                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4091                         show_message(current, color, ", %.2f", current->get_control_in_value());
4092                 }
4093                 break; }
4094
4095 // Out control
4096         case 2: {
4097                 int autogrouptype = current->autos->autogrouptype;
4098                 value = percentage_to_value(percentage, 0, current, autogrouptype);
4099                 if(value != current->get_control_out_value()) {
4100                         result = 1;
4101                         current->set_control_out_value(
4102                                 value * levered_position(position - current->position,
4103                                                          current->get_control_out_position()));
4104                         update_ganged_autos(0, current->autos->track, current);
4105                         int color = GWindowGUI::auto_colors[current->autos->autoidx];
4106                         show_message(current, color, ", %.2f", current->get_control_out_value());
4107                 }
4108                 break; }
4109         }
4110
4111         return result;
4112 }
4113
4114 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
4115 {
4116         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
4117
4118         UPDATE_DRAG_HEAD(1);
4119         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
4120
4121         if(value != current->value || position != current->position)
4122         {
4123                 result = 1;
4124                 current->value = value;
4125                 current->position = position;
4126                 show_message(current, -1, ", %d", current->value);
4127         }
4128
4129         return result;
4130 }
4131
4132 // Autos which can't change value through dragging.
4133
4134 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
4135 {
4136         Auto *current = (Auto*)mwindow->session->drag_auto;
4137
4138         UPDATE_DRAG_HEAD(1)
4139         if(position != current->position)
4140         {
4141                 result = 1;
4142                 current->position = position;
4143                 show_message(current, -1, "");
4144
4145                 double position_f = current->autos->track->from_units(current->position);
4146                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4147                         mwindow->edl->local_session->get_selectionend(1)) /
4148                         2;
4149                 if(!shift_down())
4150                 {
4151                         mwindow->edl->local_session->set_selectionstart(position_f);
4152                         mwindow->edl->local_session->set_selectionend(position_f);
4153                 }
4154                 else
4155                 if(position_f < center_f)
4156                 {
4157                         mwindow->edl->local_session->set_selectionstart(position_f);
4158                 }
4159                 else
4160                         mwindow->edl->local_session->set_selectionend(position_f);
4161         }
4162
4163
4164         return result;
4165 }
4166
4167 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
4168 {
4169         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
4170
4171         UPDATE_DRAG_HEAD(1)
4172         if(position != current->position)
4173         {
4174 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
4175                 Track *track = current->autos->track;
4176                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
4177                 PluginSet *pluginset;
4178                 Plugin *plugin = 0;
4179 // figure out the correct pluginset & correct plugin
4180                 int found = 0;
4181                 for(int i = 0; i < track->plugin_set.total; i++)
4182                 {
4183                         pluginset = track->plugin_set.values[i];
4184                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
4185                         {
4186                                 KeyFrames *keyframes = plugin->keyframes;
4187                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
4188                                         currentkeyframe;
4189                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
4190                                 {
4191                                         if (currentkeyframe == current)
4192                                         {
4193                                                 found = 1;
4194                                                 break;
4195                                         }
4196
4197                                 }
4198                                 if (found) break;
4199                         }
4200                         if (found) break;
4201                 }
4202
4203                 mwindow->session->plugin_highlighted = plugin;
4204                 mwindow->session->track_highlighted = track;
4205                 result = 1;
4206                 current->position = position;
4207                 show_message(current, -1, "");
4208
4209                 double position_f = current->autos->track->from_units(current->position);
4210                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
4211                         mwindow->edl->local_session->get_selectionend(1)) /
4212                         2;
4213                 if(!shift_down())
4214                 {
4215                         mwindow->edl->local_session->set_selectionstart(position_f);
4216                         mwindow->edl->local_session->set_selectionend(position_f);
4217                 }
4218                 else
4219                 if(position_f < center_f)
4220                 {
4221                         mwindow->edl->local_session->set_selectionstart(position_f);
4222                 }
4223                 else
4224                         mwindow->edl->local_session->set_selectionend(position_f);
4225         }
4226
4227
4228         return result;
4229 }
4230
4231 void TrackCanvas::update_drag_caption()
4232 {
4233         switch(mwindow->session->current_operation)
4234         {
4235                 case DRAG_FADE:
4236
4237                         break;
4238         }
4239 }
4240
4241
4242
4243 int TrackCanvas::cursor_update(int in_motion)
4244 {
4245         int result = 0;
4246         int cursor_x = 0;
4247         int cursor_y = 0;
4248         int update_clock = 0;
4249         int update_zoom = 0;
4250         int update_scroll = 0;
4251         int update_overlay = 0;
4252         int update_cursor = 0;
4253         int rerender = 0;
4254         double position = 0.;
4255 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4256
4257 // Default cursor
4258         int new_cursor =
4259                 arrow_mode() ? ARROW_CURSOR :
4260                 ibeam_mode() ? IBEAM_CURSOR : 0;
4261
4262         switch(mwindow->session->current_operation)
4263         {
4264                 case DRAG_EDITHANDLE1:
4265 // Outside threshold.  Upgrade status
4266                         if(active)
4267                         {
4268                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4269                                 {
4270                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
4271                                         update_overlay = 1;
4272                                 }
4273                         }
4274                         break;
4275
4276                 case DRAG_EDITHANDLE2:
4277                         if(active)
4278                         {
4279                                 update_drag_handle();
4280                                 update_overlay = 1;
4281                         }
4282                         break;
4283
4284                 case DRAG_PLUGINHANDLE1:
4285                         if(active)
4286                         {
4287                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
4288                                 {
4289                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
4290                                         update_overlay = 1;
4291                                 }
4292                         }
4293                         break;
4294
4295                 case DRAG_PLUGINHANDLE2:
4296                         if(active)
4297                         {
4298                                 update_drag_handle();
4299                                 update_overlay = 1;
4300                         }
4301                         break;
4302
4303 // Rubber band curves
4304                 case DRAG_FADE:
4305                 case DRAG_SPEED:
4306                 case DRAG_CZOOM:
4307                 case DRAG_PZOOM:
4308                 case DRAG_CAMERA_X:
4309                 case DRAG_CAMERA_Y:
4310                 case DRAG_CAMERA_Z:
4311                 case DRAG_PROJECTOR_X:
4312                 case DRAG_PROJECTOR_Y:
4313                 case DRAG_PROJECTOR_Z:
4314                         if(active) rerender = update_overlay =
4315                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
4316                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
4317                                 mwindow->speed_after(!in_motion ? 1 : 0);
4318                         break;
4319
4320                 case DRAG_PLAY:
4321                         if(active) rerender = update_overlay =
4322                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4323                         break;
4324
4325                 case DRAG_MUTE:
4326                         if(active) rerender = update_overlay =
4327                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
4328                         break;
4329
4330 // Keyframe icons are sticky
4331                 case DRAG_PAN_PRE:
4332                 case DRAG_MASK_PRE:
4333                 case DRAG_MODE_PRE:
4334                 case DRAG_PLUGINKEY_PRE:
4335                         if(active) {
4336                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4337                                         mwindow->session->current_operation++;
4338                                         update_overlay = 1;
4339
4340                                         mwindow->undo->update_undo_before();
4341                                 }
4342                         }
4343                         break;
4344
4345                 case DRAG_PAN:
4346                 case DRAG_MASK:
4347                 case DRAG_MODE:
4348                         if(active) rerender = update_overlay =
4349                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4350                         break;
4351
4352                 case DRAG_PLUGINKEY:
4353                         if(active) rerender = update_overlay =
4354                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4355                         break;
4356
4357                 case SELECT_REGION:
4358                         if(active) {
4359                                 cursor_x = get_cursor_x();
4360                                 cursor_y = get_cursor_y();
4361                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4362                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4363
4364                                 position = mwindow->edl->align_to_frame(position, 0);
4365                                 position = MAX(position, 0);
4366
4367                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4368                                 double end = mwindow->edl->local_session->get_selectionend(1);
4369                                 if(position < selection_midpoint) {
4370                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4371                                         mwindow->edl->local_session->set_selectionstart(position);
4372                                 }
4373                                 else {
4374                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4375                                         mwindow->edl->local_session->set_selectionend(position);
4376                                 }
4377         // Que the CWindow
4378                                 gui->unlock_window();
4379                                 int dir =
4380                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4381                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4382                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4383                                 gui->lock_window("TrackCanvas::cursor_update 1");
4384         // Update the faders
4385                                 mwindow->update_plugin_guis();
4386                                 gui->update_patchbay();
4387
4388                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4389
4390                                 gui->hide_cursor(0);
4391                                 gui->draw_cursor(1);
4392                                 gui->update_timebar(0);
4393                                 gui->flash_canvas(1);
4394                                 result = 1;
4395                                 update_clock = 1;
4396                                 update_zoom = 1;
4397                                 update_scroll = 1;
4398                         }
4399                         break;
4400
4401                 case DROP_TARGETING:
4402                         new_cursor = GRABBED_CURSOR;
4403                         result = 1;
4404                         break;
4405
4406                 default:
4407                         if(is_event_win() && cursor_inside()) {
4408 // Update clocks
4409                                 cursor_x = get_cursor_x();
4410                                 position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4411                                 position = mwindow->edl->align_to_frame(position, 0);
4412                                 update_clock = 1;
4413 // set all timebars
4414                                 for(int i = 0; i < TOTAL_PANES; i++)
4415                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4416
4417 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4418                                 gui->update_timebar(0);
4419 // Update cursor
4420                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4421                                                 0, new_cursor, update_cursor)) break;
4422                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4423                                         0, 0, new_cursor, update_cursor, rerender)) break;
4424                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4425                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4426 // Plugin boundaries
4427                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4428                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4429                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4430                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4431                         }
4432                         break;
4433         }
4434
4435 //printf("TrackCanvas::cursor_update 1\n");
4436         if(update_cursor && new_cursor != get_cursor())
4437         {
4438                 set_cursor(new_cursor, 0, 1);
4439         }
4440
4441 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4442         if(rerender && render_timer->get_difference() > 0.25 ) {
4443                 render_timer->update();
4444                 mwindow->restart_brender();
4445                 mwindow->sync_parameters(CHANGE_PARAMS);
4446                 mwindow->update_plugin_guis();
4447                 gui->unlock_window();
4448                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4449                 gui->lock_window("TrackCanvas::cursor_update 2");
4450         }
4451         if(rerender) {
4452 // Update faders
4453                 gui->update_patchbay();
4454         }
4455
4456
4457         if(update_clock) {
4458                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4459                         gui->mainclock->update(position);
4460         }
4461
4462         if(update_zoom) {
4463                 gui->zoombar->update();
4464         }
4465
4466         if(update_scroll) {
4467                 if(!drag_scroll &&
4468                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4469                         start_dragscroll();
4470                 else
4471                 if(drag_scroll &&
4472                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4473                         stop_dragscroll();
4474         }
4475
4476         if(update_overlay) {
4477                 gui->draw_overlays(1);
4478         }
4479
4480 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4481         return result;
4482 }
4483
4484 int TrackCanvas::cursor_motion_event()
4485 {
4486         return cursor_update(1);
4487 }
4488
4489 void TrackCanvas::start_dragscroll()
4490 {
4491         if(!drag_scroll) {
4492                 drag_scroll = 1;
4493                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4494 //printf("TrackCanvas::start_dragscroll 1\n");
4495         }
4496 }
4497
4498 void TrackCanvas::stop_dragscroll()
4499 {
4500         if(drag_scroll) {
4501                 drag_scroll = 0;
4502                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4503 //printf("TrackCanvas::stop_dragscroll 1\n");
4504         }
4505 }
4506
4507 int TrackCanvas::repeat_event(int64_t duration)
4508 {
4509         if(!drag_scroll) return 0;
4510         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4511
4512         int sample_movement = 0;
4513         int track_movement = 0;
4514         int64_t x_distance = 0;
4515         int64_t y_distance = 0;
4516         double position = 0;
4517         int result = 0;
4518
4519         switch(mwindow->session->current_operation) {
4520                 case SELECT_REGION:
4521 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4522                 if(get_cursor_x() > get_w()) {
4523                                 x_distance = get_cursor_x() - get_w();
4524                                 sample_movement = 1;
4525                 }
4526                 else if(get_cursor_x() < 0) {
4527                         x_distance = get_cursor_x();
4528                         sample_movement = 1;
4529                 }
4530
4531                 if(get_cursor_y() > get_h()) {
4532                         y_distance = get_cursor_y() - get_h();
4533                         track_movement = 1;
4534                 }
4535                 else if(get_cursor_y() < 0) {
4536                         y_distance = get_cursor_y();
4537                         track_movement = 1;
4538                 }
4539                 result = 1;
4540                 break;
4541         }
4542
4543         if(sample_movement) {
4544                 position = (double)(get_cursor_x() +
4545                         mwindow->edl->local_session->view_start[pane->number] +
4546                         x_distance) *
4547                         mwindow->edl->local_session->zoom_sample /
4548                         mwindow->edl->session->sample_rate;
4549                 position = mwindow->edl->align_to_frame(position, 0);
4550                 position = MAX(position, 0);
4551
4552 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4553                 switch(mwindow->session->current_operation) {
4554                 case SELECT_REGION:
4555                         if(position < selection_midpoint) {
4556                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4557                                 mwindow->edl->local_session->set_selectionstart(position);
4558 // Que the CWindow
4559                                 gui->unlock_window();
4560                                 mwindow->cwindow->update(1, 0, 0);
4561                                 gui->lock_window("TrackCanvas::repeat_event");
4562 // Update the faders
4563                                 mwindow->update_plugin_guis();
4564                                 gui->update_patchbay();
4565                         }
4566                         else {
4567                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4568                                 mwindow->edl->local_session->set_selectionend(position);
4569 // Don't que the CWindow
4570                         }
4571                         break;
4572                 }
4573
4574                 mwindow->samplemovement(
4575                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4576                         pane->number);
4577         }
4578
4579         if(track_movement) {
4580                 mwindow->trackmovement(y_distance, pane->number);
4581         }
4582
4583         return result;
4584 }
4585
4586 int TrackCanvas::button_release_event()
4587 {
4588         int redraw = -1, update_overlay = 0;
4589         int result = 0, load_flags = 0;
4590
4591 // printf("TrackCanvas::button_release_event %d\n",
4592 // mwindow->session->current_operation);
4593         if(active) {
4594                 switch(mwindow->session->current_operation) {
4595                 case DRAG_EDITHANDLE2:
4596                         mwindow->session->current_operation = NO_OPERATION;
4597                         drag_scroll = 0;
4598                         result = 1;
4599
4600                         end_edithandle_selection();
4601                         break;
4602
4603                 case DRAG_EDITHANDLE1:
4604                         mwindow->session->current_operation = NO_OPERATION;
4605                         drag_scroll = 0;
4606                         result = 1;
4607                         break;
4608
4609                 case DRAG_PLUGINHANDLE2:
4610                         mwindow->session->current_operation = NO_OPERATION;
4611                         drag_scroll = 0;
4612                         result = 1;
4613
4614                         end_pluginhandle_selection();
4615                         break;
4616
4617                 case DRAG_PLUGINHANDLE1:
4618                         mwindow->session->current_operation = NO_OPERATION;
4619                         drag_scroll = 0;
4620                         result = 1;
4621                         break;
4622
4623                 case DRAG_SPEED:
4624                         redraw = FORCE_REDRAW;
4625                         load_flags |= LOAD_EDITS;
4626                 case DRAG_FADE:
4627 // delete the drag_auto_gang first and remove out of order keys
4628                         clear_ganged_autos();
4629                 case DRAG_CZOOM:
4630                 case DRAG_PZOOM:
4631                 case DRAG_PLAY:
4632                 case DRAG_MUTE:
4633                 case DRAG_MASK:
4634                 case DRAG_MODE:
4635                 case DRAG_PAN:
4636                 case DRAG_CAMERA_X:
4637                 case DRAG_CAMERA_Y:
4638                 case DRAG_CAMERA_Z:
4639                 case DRAG_PROJECTOR_X:
4640                 case DRAG_PROJECTOR_Y:
4641                 case DRAG_PROJECTOR_Z:
4642                 case DRAG_PLUGINKEY:
4643                         load_flags |= LOAD_AUTOMATION;
4644                         mwindow->session->current_operation = NO_OPERATION;
4645                         mwindow->session->drag_handle = 0;
4646 // Remove any out-of-order keyframe
4647                         if(mwindow->session->drag_auto) {
4648                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4649                                                 mwindow->session->drag_auto);
4650 //                              mwindow->session->drag_auto->autos->optimize();
4651                                 update_overlay = 1;
4652                         }
4653
4654                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4655                         result = 1;
4656                         break;
4657
4658                 case DRAG_EDIT:
4659                 case DRAG_GROUP:
4660                 case DRAG_AEFFECT_COPY:
4661                 case DRAG_VEFFECT_COPY:
4662 // Trap in drag stop
4663                         break;
4664
4665                 case DROP_TARGETING: {
4666                         int cursor_x = get_cursor_x(), cursor_y = get_cursor_y();
4667                         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4668                         drag_cursor_motion(cursor_x, cursor_y,
4669                                 &track, &edit, &pluginset, &plugin);
4670                         double position =
4671                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4672                         gui->edit_menu->activate_menu(track, edit, pluginset, plugin, position);
4673                         mwindow->session->current_operation = NO_OPERATION;
4674                         result = 1;
4675                         break; }
4676
4677                 case GROUP_TOGGLE: {
4678                         Edit *edit = mwindow->session->drag_edit;
4679                         if( edit ) {
4680                                 if( shift_down() && edit->is_selected ) {
4681                                         if( edit->group_id > 0 ) {
4682                                                 mwindow->edl->tracks->clear_selected_edits();
4683                                                 mwindow->edl->tracks->del_group(edit->group_id);
4684                                         }
4685                                         else {
4686                                                 int id = mwindow->session->group_number++;
4687                                                 mwindow->edl->tracks->new_group(id);
4688                                         }
4689                                         redraw = 0;
4690                                 }
4691                                 else {
4692                                         if( mwindow->preferences->ctrl_toggle && !ctrl_down() )
4693                                                 mwindow->edl->tracks->clear_selected_edits();
4694                                         edit->set_selected(-1);
4695                                 }
4696                         }
4697                         mwindow->session->current_operation = NO_OPERATION;
4698                         update_overlay = 1;
4699                         result = 1;
4700                         drag_scroll = 0;
4701                         break; }
4702
4703                 default:
4704                         if( mwindow->session->current_operation ) {
4705 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4706 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4707 //                              }
4708
4709                                 mwindow->session->current_operation = NO_OPERATION;
4710                                 drag_scroll = 0;
4711                                 //result = 0;
4712                                 break;
4713                         }
4714                         break;
4715                 }
4716         }
4717
4718         if( mwindow->edl->local_session->zoombar_showautocolor >= 0 )
4719                 mwindow->gui->zoombar->update_autozoom(-1);
4720
4721         if (result)
4722                 cursor_update(0);
4723
4724         if(update_overlay) {
4725                 gui->draw_overlays(1);
4726         }
4727         if(redraw >= 0) {
4728                 gui->draw_canvas(redraw, 0);
4729                 gui->flash_canvas(1);
4730         }
4731         return result;
4732 }
4733
4734 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4735         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4736 {
4737         Edit *edit_result = 0;
4738         int handle_result = -1;
4739         int result = 0;
4740
4741         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4742                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4743                         int64_t edit_x, edit_y, edit_w, edit_h;
4744                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4745
4746                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4747                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4748                                 if( cursor_x < edit_x + HANDLE_W ) {
4749                                         edit_result = edit;
4750                                         handle_result = 0;
4751                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4752                                             track->show_assets() ) {
4753                                                 new_cursor = DOWNLEFT_RESIZE;
4754                                                 if( button_press == LEFT_BUTTON )
4755                                                         result = -1;
4756                                         }
4757                                         else
4758                                                 result = 1;
4759                                 }
4760                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4761                                         edit_result = edit;
4762                                         handle_result = 1;
4763                                         if( cursor_y >= edit_y+edit_h - HANDLE_W &&
4764                                             track->show_assets() ) {
4765                                                 new_cursor = DOWNRIGHT_RESIZE;
4766                                                 if( button_press == LEFT_BUTTON )
4767                                                         result = -1;
4768                                         }
4769                                         else
4770                                                 result = 1;
4771                                 }
4772                         }
4773                 }
4774         }
4775
4776         if( result > 0 ) {
4777                 int group_id = edit_result->group_id;
4778                 if( group_id > 0 ) {
4779                         Track *track = edit_result->track;
4780                         Edit *left = 0, *right = 0;
4781                         double start = DBL_MAX, end = DBL_MIN;
4782                         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
4783                                 if( edit->group_id != group_id ) continue;
4784                                 double edit_start = edit->track->from_units(edit->startproject);
4785                                 if( edit_start < start ) { start = edit_start;  left = edit; }
4786                                 double edit_end = edit->track->from_units(edit->startproject+edit->length);
4787                                 if( edit_end > end ) { end = edit_end;  right = edit; }
4788                         }
4789                         Edit *edit = !handle_result ? left : right;
4790                         if( edit != edit_result )
4791                                 result = 0;
4792                 }
4793         }
4794
4795         update_cursor = 1;
4796         if( result > 0 ) {
4797                 double position = 0;
4798                 if( handle_result == 0 ) {
4799                         position = edit_result->track->from_units(edit_result->startproject);
4800                         new_cursor = LEFT_CURSOR;
4801                 }
4802                 else if( handle_result == 1 ) {
4803                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4804                         new_cursor = RIGHT_CURSOR;
4805                 }
4806
4807 // Reposition cursor
4808                 if( button_press ) {
4809                         mwindow->session->drag_edit = edit_result;
4810                         mwindow->session->drag_handle = handle_result;
4811                         mwindow->session->drag_button = get_buttonpress() - 1;
4812                         mwindow->session->drag_position = position;
4813                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4814                         mwindow->session->drag_origin_x = get_cursor_x();
4815                         mwindow->session->drag_origin_y = get_cursor_y();
4816                         mwindow->session->drag_start = position;
4817
4818                         rerender = start_selection(position);
4819                         update_overlay = 1;
4820                 }
4821         }
4822         else if( result < 0 && !edit_result->silence() ) {
4823                 mwindow->undo->update_undo_before();
4824                 if( !shift_down() ) {
4825                         if( handle_result == 0 )
4826                                 edit_result->hard_left = !edit_result->hard_left;
4827                         else if( handle_result == 1 )
4828                                 edit_result->hard_right = !edit_result->hard_right;
4829                 }
4830                 else {
4831                         int status = handle_result == 0 ? edit_result->hard_left :
4832                                      handle_result == 1 ? edit_result->hard_right : 0;
4833                         int new_status = !status;
4834                         int64_t edit_edge = edit_result->startproject;
4835                         if( handle_result == 1 ) edit_edge += edit_result->length;
4836                         double edge_position = edit_result->track->from_units(edit_edge);
4837                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4838                                 int64_t track_position = track->to_units(edge_position, 1);
4839                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4840                                 if( left_edit ) {
4841                                         int64_t left_edge = left_edit->startproject;
4842                                         double left_position = track->from_units(left_edge);
4843                                         if( EQUIV(edge_position, left_position) ) {
4844                                                 left_edit->hard_left = new_status;
4845                                                 if( left_edit->previous )
4846                                                         left_edit->previous->hard_right = new_status;
4847                                         }
4848                                 }
4849                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4850                                 if( right_edit ) {
4851                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4852                                         double right_position = track->from_units(right_edge);
4853                                         if( EQUIV(edge_position, right_position) ) {
4854                                                 right_edit->hard_right = new_status;
4855                                                 if( right_edit->next )
4856                                                         right_edit->next->hard_left = new_status;
4857                                         }
4858                                 }
4859                         }
4860                 }
4861                 rerender = update_overlay = 1;
4862                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4863                 result = 1;
4864         }
4865
4866         return result;
4867 }
4868
4869 int TrackCanvas::do_plugin_handles(int cursor_x,
4870         int cursor_y,
4871         int button_press,
4872         int &rerender,
4873         int &update_overlay,
4874         int &new_cursor,
4875         int &update_cursor)
4876 {
4877         Plugin *plugin_result = 0;
4878         int handle_result = 0;
4879         int result = 0;
4880
4881         for(Track *track = mwindow->edl->tracks->first;
4882                 track && !result;
4883                 track = track->next) {
4884                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4885                         PluginSet *plugin_set = track->plugin_set.values[i];
4886                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4887                                 plugin && !result;
4888                                 plugin = (Plugin*)plugin->next) {
4889                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4890                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4891
4892                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4893                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4894                                         if(cursor_x < plugin_x + HANDLE_W) {
4895                                                 plugin_result = plugin;
4896                                                 handle_result = 0;
4897                                                 result = 1;
4898                                         }
4899                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4900                                                 plugin_result = plugin;
4901                                                 handle_result = 1;
4902                                                 result = 1;
4903                                         }
4904                                 }
4905                         }
4906
4907                         if(result && shift_down())
4908                                 mwindow->session->trim_edits = plugin_set;
4909                 }
4910         }
4911
4912         update_cursor = 1;
4913         if(result) {
4914                 double position = 0;
4915                 if(handle_result == 0) {
4916                         position = plugin_result->track->from_units(plugin_result->startproject);
4917                         new_cursor = LEFT_CURSOR;
4918                 }
4919                 else if(handle_result == 1) {
4920                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4921                         new_cursor = RIGHT_CURSOR;
4922                 }
4923
4924                 if(button_press) {
4925                         mwindow->session->drag_plugin = plugin_result;
4926                         mwindow->session->drag_handle = handle_result;
4927                         mwindow->session->drag_button = get_buttonpress() - 1;
4928                         mwindow->session->drag_position = position;
4929                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4930                         mwindow->session->drag_origin_x = get_cursor_x();
4931                         mwindow->session->drag_origin_y = get_cursor_y();
4932                         mwindow->session->drag_start = position;
4933
4934                         rerender = start_selection(position);
4935                         update_overlay = 1;
4936                 }
4937         }
4938
4939         return result;
4940 }
4941
4942
4943 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4944 {
4945         int result = 0;
4946
4947         Track *track=0;  Edit *edit=0;  PluginSet *pluginset=0;  Plugin *plugin=0;
4948         drag_cursor_motion(cursor_x, cursor_y,
4949                 &track, &edit, &pluginset, &plugin);
4950
4951         if( button_press && track ) {
4952                 switch( get_buttonpress() ) {
4953                 case RIGHT_BUTTON: {
4954                         double position =
4955                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
4956                         gui->track_menu->activate_menu(track, edit, pluginset, plugin, position);
4957                         mwindow->session->current_operation = NO_OPERATION;
4958                         result = 1;
4959                         break; }
4960                 case MIDDLE_BUTTON:
4961                         set_cursor(GRABBED_CURSOR, 0, 1);
4962                         mwindow->session->current_operation = DROP_TARGETING;
4963                         result = 1;
4964                         break;
4965                 }
4966         }
4967
4968         return result;
4969 }
4970
4971 int TrackCanvas::arrow_mode()
4972 {
4973         return mwindow->edl->session->editing_mode == EDITING_ARROW ? 1 : 0;
4974 }
4975 int TrackCanvas::ibeam_mode()
4976 {
4977         return mwindow->edl->session->editing_mode == EDITING_IBEAM ? 1 : 0;
4978 }
4979
4980 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4981         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4982 {
4983         int result = 0;
4984
4985         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4986                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4987                         int64_t edit_x, edit_y, edit_w, edit_h;
4988                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4989
4990 // Cursor inside a track
4991 // Cursor inside an edit
4992                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4993                             cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4994                                 if( button_press && get_buttonpress() == LEFT_BUTTON ) {
4995                                         if( get_double_click() ) {
4996                                                 mwindow->edl->tracks->clear_selected_edits();
4997                                                 mwindow->edl->tracks->select_affected_edits(
4998                                                         edit->track->from_units(edit->startproject),
4999                                                         edit->track, 1);
5000                                                 double start = edit->track->from_units(edit->startproject);
5001                                                 start = mwindow->edl->align_to_frame(start, 0);
5002                                                 mwindow->edl->local_session->set_selectionstart(start);
5003                                                 double end = edit->track->from_units(edit->startproject+edit->length);
5004                                                 end = mwindow->edl->align_to_frame(end, 0);
5005                                                 mwindow->edl->local_session->set_selectionend(end);
5006                                                 result = 1; // Select edit duration or select_region
5007                                         }
5008                                         else if( arrow_mode() || (ibeam_mode() && ctrl_down()) ) {
5009                                                 mwindow->session->drag_edit = edit;
5010                                                 mwindow->session->current_operation = GROUP_TOGGLE;
5011                                                 result = 1;
5012                                         }
5013                                         if( result ) {
5014                                                 rerender = 1;
5015                                                 update_cursor = -1;
5016                                         }
5017                                 }
5018                                 else if( drag_start && track->record ) {
5019                                         mwindow->session->drag_edit = edit;
5020                                         mwindow->session->drag_origin_x = cursor_x;
5021                                         mwindow->session->drag_origin_y = cursor_y;
5022 // Where the drag started, so we know relative position inside the edit later
5023                                         mwindow->session->drag_position =
5024                                                 mwindow->edl->get_cursor_position(cursor_x, pane->number);
5025                                         drag_start = 0; // if unselected "fast" drag
5026                                         if( !edit->silence() && !edit->is_selected ) {
5027                                                 mwindow->edl->tracks->clear_selected_edits();
5028                                                 if( ibeam_mode() ) {
5029                                                         double start = edit->track->from_units(edit->startproject);
5030                                                         mwindow->edl->local_session->set_selectionstart(start);
5031                                                         mwindow->edl->local_session->set_selectionend(start);
5032                                                         edit->set_selected(1);
5033                                                 }
5034                                                 else
5035                                                         mwindow->edl->tracks->select_affected_edits(
5036                                                                 edit->track->from_units(edit->startproject),
5037                                                                 edit->track, 1);
5038                                                 drag_start = 1;
5039                                         }
5040 // Construct list of all affected edits
5041                                         if( drag_start || ibeam_mode() ) {
5042                                                 mwindow->edl->tracks->get_selected_edits(mwindow->session->drag_edits);
5043                                                 if( mwindow->session->drag_edits->size() > 0 ) {
5044                                                         mwindow->session->current_operation = DRAG_EDIT;
5045 // Need to create drag window
5046                                                         int cx, cy;  get_abs_cursor(cx, cy);
5047                                                         gui->drag_popup = new BC_DragWindow(gui,
5048                                                                 mwindow->theme->get_image("clip_icon"), cx, cy);
5049                                                         result = 1;
5050                                                 }
5051                                                 else {
5052                                                         rerender = start_selection(mwindow->session->drag_position);
5053                                                         mwindow->session->current_operation = SELECT_REGION;
5054                                                         update_cursor = 1;
5055                                                 }
5056                                         }
5057                                         else if( edit->is_selected && arrow_mode() ) {
5058                                                 if( mwindow->session->drag_group )
5059                                                         mwindow->session->drag_group->remove_user();
5060                                                 double start_position = 0;
5061                                                 mwindow->session->drag_group =
5062                                                         mwindow->edl->selected_edits_to_clip(0, &start_position,
5063                                                                 &mwindow->session->drag_group_first_track);
5064                                                 if( mwindow->session->drag_group ) {
5065                                                         mwindow->session->current_operation = DRAG_GROUP;
5066                                                         mwindow->session->drag_group_position = start_position;
5067                                                         mwindow->session->drag_group_edit = edit;
5068                                                         mwindow->session->drag_origin_y = edit_y;
5069                                                         result = 1;
5070                                                 }
5071                                         }
5072                                 }
5073                         }
5074                 }
5075         }
5076         return result;
5077 }
5078
5079 // returns -1=doesnt fit, 1=fits, 0=fits but overwrites
5080 int TrackCanvas::test_track_group(EDL *group, Track *first_track, double &pos)
5081 {
5082         int intersects = 0;
5083         Track *src = group->tracks->first;
5084         for( Track *track=first_track; track && src; track=track->next ) {
5085                 if( !track->record ) return -1;
5086                 if( src->data_type != track->data_type ) return -1;
5087                 for( Edit *src_edit=src->edits->first; src_edit; src_edit=src_edit->next ) {
5088                         if( src_edit->silence() ) continue;
5089                         if( !intersects && edit_intersects(track, src_edit, pos) )
5090                                 intersects = 1;
5091                 }
5092                 src = src->next;
5093         }
5094         return src ? -1 : !intersects ? 1 : 0;
5095 }
5096
5097 int TrackCanvas::edit_intersects(Track *track, Edit *src_edit, double &pos)
5098 {
5099         if( pos < 0 ) { pos = 0;  return 1; }
5100         int pane_no = pane->number;
5101         int cur_pix = track->edl->get_position_cursorx(pos, pane_no);
5102         int64_t src_start = src_edit->startproject;
5103         int64_t src_end = src_start + src_edit->length;
5104         double new_start = src_edit->track->from_units(src_start) + pos;
5105         double new_end = src_edit->track->from_units(src_end) + pos;
5106         int64_t trk_start = track->to_units(new_start, 1);
5107         int64_t trk_end = track->to_units(new_end, 1);
5108         for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
5109                 if( edit->is_selected || edit->silence() ) continue;
5110                 int64_t edit_start = edit->startproject;
5111                 if( edit_start >= trk_end ) continue;
5112                 int64_t edit_end = edit_start + edit->length;
5113                 if( trk_start >= edit_end ) continue;
5114
5115                 int64_t lt_dist = labs(trk_end - edit_start);
5116                 int64_t rt_dist = labs(edit_end - trk_start);
5117                 int64_t position;
5118                 if( lt_dist < rt_dist ) {
5119                         position = edit_start;
5120                         lt_dist = abs(trk_start - edit_start);
5121                         rt_dist = abs(trk_end - edit_start);
5122                         if( lt_dist > rt_dist )
5123                                 position -= src_end;
5124                 }
5125                 else {
5126                         position = edit_end;
5127                         lt_dist = abs(trk_start - edit_end);
5128                         rt_dist = abs(trk_end - edit_end);
5129                         if( lt_dist > rt_dist )
5130                                 position -= src_end;
5131                 }
5132                 double new_pos = edit->track->from_units(position);
5133                 int new_pix = track->edl->get_position_cursorx(new_pos, pane_no);
5134                 if( abs(new_pix-cur_pix) < HANDLE_W )
5135                         pos = new_pos;
5136                 return 1;
5137         }
5138         return 0;
5139 }
5140
5141 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
5142 {
5143         return 0;
5144 }
5145
5146 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
5147         int button_press, int &redraw, int &rerender)
5148 {
5149         Plugin *plugin = 0;
5150         int result = 0;
5151         int done = 0;
5152         int64_t x, y, w, h;
5153         Track *track = 0;
5154
5155         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
5156                 if(!track->expand_view) continue;
5157
5158                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
5159                         // first check if plugins are visible at all
5160                         if (!track->expand_view)
5161                                 continue;
5162                         PluginSet *plugin_set = track->plugin_set.values[i];
5163                         for(plugin = (Plugin*)plugin_set->first;
5164                                 plugin && !done;
5165                                 plugin = (Plugin*)plugin->next) {
5166                                 plugin_dimensions(plugin, x, y, w, h);
5167                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
5168                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
5169                                         if(cursor_x >= x && cursor_x < x + w &&
5170                                                 cursor_y >= y && cursor_y < y + h) {
5171                                                 done = 1;
5172                                                 break;
5173                                         }
5174                                 }
5175                         }
5176                 }
5177         }
5178
5179         if(plugin) {
5180 // Start plugin popup
5181                 if(button_press) {
5182                         if(get_buttonpress() == RIGHT_BUTTON ) {
5183                                 gui->plugin_menu->update(plugin);
5184                                 gui->plugin_menu->activate_menu();
5185                                 result = 1;
5186                         }
5187                         else if (get_double_click() && !drag_start) {
5188 // Select range of plugin on doubleclick over plugin
5189                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
5190                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
5191                                         plugin->track->from_units(plugin->length));
5192                                 if(mwindow->edl->session->cursor_on_frames) {
5193                                         mwindow->edl->local_session->set_selectionstart(
5194                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
5195                                         mwindow->edl->local_session->set_selectionend(
5196                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
5197                                 }
5198                                 rerender = 1;
5199                                 redraw = 1;
5200                                 result = 1;
5201                         }
5202                 }
5203                 else
5204 // Move plugin
5205                 if( drag_start && plugin->track->record && !plugin->silence() ) {
5206                         if( mwindow->edl->session->editing_mode == EDITING_ARROW ) {
5207                                 if( plugin->track->data_type == TRACK_AUDIO )
5208                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
5209                                 else if( plugin->track->data_type == TRACK_VIDEO )
5210                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
5211
5212                                 mwindow->session->drag_plugin = plugin;
5213                                 mwindow->session->drag_origin_x = cursor_x;
5214                                 mwindow->session->drag_origin_y = cursor_y;
5215                                 // Where the drag started, so we know relative position inside the edit later
5216                                 mwindow->session->drag_position =
5217                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
5218                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
5219 // Create picon
5220                                 switch(plugin->plugin_type) {
5221                                 case PLUGIN_STANDALONE: {
5222                                         PluginServer *server =
5223                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
5224                                         if( !server ) break;
5225                                         VFrame *frame = server->picon;
5226                                         if(!frame) {
5227                                                 if(plugin->track->data_type == TRACK_AUDIO) {
5228                                                         frame = mwindow->theme->get_image("aeffect_icon");
5229                                                 }
5230                                                 else {
5231                                                         frame = mwindow->theme->get_image("veffect_icon");
5232                                                 }
5233                                         }
5234                                         int cx, cy;
5235                                         get_abs_cursor(cx, cy);
5236                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5237                                                 break; }
5238
5239                                 case PLUGIN_SHAREDPLUGIN:
5240                                 case PLUGIN_SHAREDMODULE: {
5241                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
5242                                         int cx, cy;
5243                                         get_abs_cursor(cx, cy);
5244                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
5245                                         break; }
5246                                 }
5247
5248                                 result = 1;
5249                         }
5250                 }
5251         }
5252
5253         return result;
5254 }
5255
5256 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
5257         int button_press, int &new_cursor, int &update_cursor)
5258 {
5259         Transition *transition = 0;
5260         int result = 0;
5261         int64_t x, y, w, h;
5262
5263
5264         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
5265                 if( !track->show_transitions() ) continue;
5266
5267                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
5268                         if( edit->transition ) {
5269                                 edit_dimensions(edit, x, y, w, h);
5270                                 get_transition_coords(edit, x, y, w, h);
5271
5272                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
5273                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
5274                                         if( cursor_x >= x && cursor_x < x + w &&
5275                                                 cursor_y >= y && cursor_y < y + h ) {
5276                                                 transition = edit->transition;
5277                                                 result = 1;
5278                                                 break;
5279                                         }
5280                                 }
5281                         }
5282                 }
5283         }
5284
5285         update_cursor = 1;
5286         if(transition) {
5287                 if(!button_press) {
5288                         new_cursor = UPRIGHT_ARROW_CURSOR;
5289                 }
5290                 else if(get_buttonpress() == RIGHT_BUTTON ) {
5291                         gui->transition_menu->update(transition);
5292                         gui->transition_menu->activate_menu();
5293                 }
5294         }
5295
5296         return result;
5297 }
5298
5299 int TrackCanvas::button_press_event()
5300 {
5301         int result = 0;
5302         int cursor_x, cursor_y;
5303         int new_cursor;
5304
5305         cursor_x = get_cursor_x();
5306         cursor_y = get_cursor_y();
5307         mwindow->session->trim_edits = 0;
5308
5309         if(is_event_win() && cursor_inside()) {
5310 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5311
5312                 result = 1;
5313                 if(!active) {
5314                         activate();
5315                 }
5316
5317                 if( get_buttonpress() == LEFT_BUTTON ) {
5318                         gui->stop_transport("TrackCanvas::button_press_event");
5319                 }
5320
5321                 int update_overlay = 0, update_cursor = 0, rerender = 0, update_message = 0;
5322
5323                 if(get_buttonpress() == WHEEL_UP) {
5324                         if(shift_down())
5325                                 mwindow->expand_sample();
5326                         else if(ctrl_down())
5327                                 mwindow->move_left(get_w()/ 10);
5328                         else
5329                                 mwindow->move_up(get_h() / 10);
5330                 }
5331                 else if(get_buttonpress() == WHEEL_DOWN) {
5332                         if(shift_down())
5333                                 mwindow->zoom_in_sample();
5334                         else if(ctrl_down())
5335                                 mwindow->move_right(get_w() / 10);
5336                         else
5337                                 mwindow->move_down(get_h() / 10);
5338                 }
5339                 else if(get_buttonpress() == 6) {
5340                         if(ctrl_down())
5341                                 mwindow->move_left(get_w());
5342                         else if(alt_down())
5343                                 mwindow->move_left(get_w() / 20);
5344                         else
5345                                 mwindow->move_left(get_w() / 5);
5346                 }
5347                 else if(get_buttonpress() == 7) {
5348                         if(ctrl_down())
5349                                 mwindow->move_right(get_w());
5350                         else if(alt_down())
5351                                 mwindow->move_right(get_w() / 20);
5352                         else
5353                                 mwindow->move_right(get_w() / 5);
5354                 }
5355                 else {
5356                         if( arrow_mode() ) do {
5357 // Test handles and resource boundaries and highlight a track
5358                                 if( do_transitions(cursor_x, cursor_y,
5359                                                 1, new_cursor, update_cursor) ) break;
5360
5361                                 if( do_keyframes(cursor_x, cursor_y,
5362                                         0, get_buttonpress(), new_cursor,
5363                                         update_cursor, rerender) ) break;
5364                                 update_message = 1;
5365 // Test edit boundaries
5366                                 if( do_edit_handles(cursor_x, cursor_y,
5367                                         1, rerender, update_overlay, new_cursor,
5368                                         update_cursor) ) break;
5369 // Test plugin boundaries
5370                                 if( do_plugin_handles(cursor_x, cursor_y,
5371                                         1, rerender, update_overlay, new_cursor,
5372                                         update_cursor) ) break;
5373
5374                                 if( do_edits(cursor_x, cursor_y, 1, 0,
5375                                         update_overlay, rerender, new_cursor,
5376                                         update_cursor) ) break;
5377
5378                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
5379                                         update_cursor, rerender) ) break;
5380
5381                                 if( test_resources(cursor_x, cursor_y) ) break;
5382
5383                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5384
5385                                 result = 0;
5386                         } while(0);
5387                         else if( ibeam_mode() ) do {
5388 // Test handles only and select a region
5389                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
5390 //printf("TrackCanvas::button_press_event %d\n", position);
5391
5392                                 if( do_transitions(cursor_x, cursor_y,
5393                                                 1, new_cursor, update_cursor)) break;
5394                                 if(do_keyframes(cursor_x, cursor_y,
5395                                         0, get_buttonpress(), new_cursor,
5396                                         update_cursor, rerender)) {
5397                                         update_overlay = 1;
5398                                         break;
5399                                 }
5400                                 update_message = 1;
5401 // Test edit boundaries
5402                                 if( do_edit_handles(cursor_x, cursor_y,
5403                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5404 // Test plugin boundaries
5405                                 if( do_plugin_handles(cursor_x, cursor_y,
5406                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
5407
5408                                 if( do_edits(cursor_x, cursor_y,
5409                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
5410
5411                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
5412
5413                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
5414 // Highlight selection
5415                                 if( get_buttonpress() != LEFT_BUTTON ) break;
5416                                 rerender = start_selection(position);
5417                                 mwindow->session->current_operation = SELECT_REGION;
5418                                 update_cursor = 1;
5419                         } while(0);
5420                 }
5421
5422                 if( rerender ) {
5423                         gui->unlock_window();
5424                         mwindow->cwindow->update(1, 0, 0, 0, 1);
5425                         gui->lock_window("TrackCanvas::button_press_event 2");
5426 // Update faders
5427                         mwindow->update_plugin_guis();
5428                         gui->update_patchbay();
5429                 }
5430
5431                 if( update_message )
5432                         gui->default_message();
5433
5434                 if( update_overlay )
5435                         gui->draw_overlays(1);
5436
5437                 if( update_cursor < 0 ) {
5438 // double_click edit
5439                         gui->swindow->update_selection();
5440                         gui->draw_canvas(0, 0);
5441                 }
5442                 if( update_cursor ) {
5443                         gui->update_timebar(0);
5444                         gui->hide_cursor(0);
5445                         gui->show_cursor(1);
5446                         gui->zoombar->update();
5447                         gui->flash_canvas(1);
5448                 }
5449         }
5450
5451         return result;
5452 }
5453
5454 int TrackCanvas::start_selection(double position)
5455 {
5456         int rerender = 0;
5457         position = mwindow->edl->align_to_frame(position, 1);
5458
5459
5460 // Extend a border
5461         if(shift_down())
5462         {
5463                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
5464                         mwindow->edl->local_session->get_selectionend(1)) / 2;
5465
5466                 if(position < midpoint)
5467                 {
5468                         mwindow->edl->local_session->set_selectionstart(position);
5469                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
5470 // Que the CWindow
5471                         rerender = 1;
5472                 }
5473                 else
5474                 {
5475                         mwindow->edl->local_session->set_selectionend(position);
5476                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
5477 // Don't que the CWindow for the end
5478                 }
5479         }
5480         else
5481 // Start a new selection
5482         {
5483 //printf("TrackCanvas::start_selection %f\n", position);
5484                 mwindow->edl->local_session->set_selectionstart(position);
5485                 mwindow->edl->local_session->set_selectionend(position);
5486                 selection_midpoint = position;
5487 // Que the CWindow
5488                 rerender = 1;
5489         }
5490
5491         return rerender;
5492 }
5493
5494 void TrackCanvas::end_edithandle_selection()
5495 {
5496         mwindow->modify_edithandles();
5497 }
5498
5499 void TrackCanvas::end_pluginhandle_selection()
5500 {
5501         mwindow->modify_pluginhandles();
5502 }
5503
5504
5505 double TrackCanvas::time_visible()
5506 {
5507         return (double)get_w() *
5508                 mwindow->edl->local_session->zoom_sample /
5509                 mwindow->edl->session->sample_rate;
5510 }
5511
5512
5513 void TrackCanvas::show_message(Auto *current, int box_color, const char *fmt, ...)
5514 {
5515         char string[BCTEXTLEN];
5516         char *cp = string, *ep = cp + sizeof(string)-1;
5517         if( box_color >= 0 ) {
5518                 cp += snprintf(string, ep-cp, "%-8s ",
5519                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5520         }
5521         char string2[BCTEXTLEN];
5522         Units::totext(string2,
5523                 current->autos->track->from_units(current->position),
5524                 mwindow->edl->session->time_format,
5525                 mwindow->edl->session->sample_rate,
5526                 mwindow->edl->session->frame_rate,
5527                 mwindow->edl->session->frames_per_foot);
5528         cp += snprintf(cp, ep-cp, "%s", string2);
5529         va_list ap;
5530         va_start(ap, fmt);
5531         vsnprintf(cp, ep-cp, fmt, ap);
5532         va_end(ap);
5533         gui->show_message(string, -1, box_color);
5534 }
5535
5536 // Patchbay* TrackCanvas::get_patchbay()
5537 // {
5538 //      if(pane->patchbay) return pane->patchbay;
5539 //      if(gui->total_panes() == 2 &&
5540 //              gui->pane[TOP_LEFT_PANE] &&
5541 //              gui->pane[TOP_RIGHT_PANE])
5542 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5543 //      if(gui->total_panes() == 4)
5544 //      {
5545 //              if(pane->number == TOP_RIGHT_PANE)
5546 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5547 //              else
5548 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5549 //      }
5550 //
5551 //      return 0;
5552 // }
5553
5554