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 "cplayback.h"
  31 #include "cursors.h"
  32 #include "cwindowgui.h"
  33 #include "cwindow.h"
  34 #include "edithandles.h"
  35 #include "editpopup.h"
  36 #include "edits.h"
  37 #include "edl.h"
  38 #include "edlsession.h"
  39 #include "floatauto.h"
  40 #include "floatautos.h"
  41 #include "gwindowgui.h"
  42 #include "indexstate.h"
  43 #include "intauto.h"
  44 #include "intautos.h"
  45 #include "keyframe.h"
  46 #include "keyframepopup.h"
  47 #include "keyframes.h"
  48 #include "keys.h"
  49 #include "labels.h"
  50 #include "localsession.h"
  51 #include "mainclock.h"
  52 #include "maincursor.h"
  53 #include "mainsession.h"
  54 #include "mainundo.h"
  55 #include "maskautos.h"
  56 #include "mbuttons.h"
  57 #include "mtimebar.h"
  58 #include "mwindowgui.h"
  59 #include "mwindow.h"
  60 #include "panautos.h"
  61 #include "patchbay.h"
  62 #include "playbackengine.h"
  63 #include "playtransport.h"
  64 #include "plugin.h"
  65 #include "pluginpopup.h"
  66 #include "pluginserver.h"
  67 #include "pluginset.h"
  68 #include "plugintoggles.h"
  69 #include "preferences.h"
  70 #include "resourcepixmap.h"
  71 #include "resourcethread.h"
  72 #include "swindow.h"
  73 #include "theme.h"
  74 #include "trackcanvas.h"
  75 #include "tracking.h"
  76 #include "tracks.h"
  77 #include "transition.h"
  78 #include "transitionhandles.h"
  79 #include "transitionpopup.h"
  80 #include "transportque.h"
  81 #include "vframe.h"
  82 #include "vpatchgui.inc"
  83 #include "zoombar.h"
  84
  85 #include <string.h>
  86
  87 //#define PIXMAP_AGE -5
  88 #define PIXMAP_AGE -32
  89
  90 TrackCanvas::TrackCanvas(MWindow *mwindow,
  91         TimelinePane *pane,
  92         int x,
  93         int y,
  94         int w,
  95         int h)
  96  : BC_SubWindow(x,
  97         y,
  98         w,
  99         h)
 100 {
 101         this->mwindow = mwindow;
 102         this->gui = mwindow->gui;
 103         this->pane = pane;
 104
 105         selection_midpoint = 0;
 106         drag_scroll = 0;
 107         active = 0;
 108         temp_picon = 0;
 109         resource_timer = new Timer;
 110         render_timer = new Timer;
 111         hourglass_enabled = 0;
 112         timebar_position = -1;
 113         snapped = 0;
 114 }
 115
 116 TrackCanvas::~TrackCanvas()
 117 {
 118 //      delete transition_handles;
 119         delete edit_handles;
 120         delete keyframe_pixmap;
 121         delete camerakeyframe_pixmap;
 122         delete modekeyframe_pixmap;
 123         delete pankeyframe_pixmap;
 124         delete projectorkeyframe_pixmap;
 125         delete maskkeyframe_pixmap;
 126         delete background_pixmap;
 127         if(temp_picon) delete temp_picon;
 128         delete render_timer;
 129         delete resource_timer;
 130 }
 131
 132 void TrackCanvas::create_objects()
 133 {
 134         background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 135 //      transition_handles = new TransitionHandles(mwindow, this);
 136         edit_handles = new EditHandles(mwindow, this);
 137         keyframe_pixmap = new BC_Pixmap(this, mwindow->theme->keyframe_data, PIXMAP_ALPHA);
 138         camerakeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->camerakeyframe_data, PIXMAP_ALPHA);
 139         modekeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->modekeyframe_data, PIXMAP_ALPHA);
 140         pankeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->pankeyframe_data, PIXMAP_ALPHA);
 141         projectorkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->projectorkeyframe_data, PIXMAP_ALPHA);
 142         maskkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->maskkeyframe_data, PIXMAP_ALPHA);
 143         draw();
 144         update_cursor(0);
 145         flash(0);
 146 }
 147
 148 void TrackCanvas::resize_event()
 149 {
 150 //printf("TrackCanvas::resize_event 1\n");
 151         draw(0, 0);
 152         flash(0);
 153 //printf("TrackCanvas::resize_event 2\n");
 154 }
 155
 156 int TrackCanvas::keypress_event()
 157 {
 158         return 0;
 159 }
 160
 161 int TrackCanvas::cursor_leave_event()
 162 {
 163 // Because drag motion calls get_cursor_over_window we can be sure that
 164 // all highlights get deleted now.
 165 // This ended up blocking keyboard input from the drag operations.
 166         if( timebar_position >= 0 )
 167         {
 168                 timebar_position = -1;
 169                 if( pane->timebar )
 170                         pane->timebar->update(1);
 171         }
 172
 173         return 0;
 174 //      return drag_motion();
 175 }
 176
 177 int TrackCanvas::drag_motion_event()
 178 {
 179         return gui->drag_motion();
 180 }
 181
 182 int TrackCanvas::drag_motion(Track **over_track,
 183         Edit **over_edit,
 184         PluginSet **over_pluginset,
 185         Plugin **over_plugin)
 186 {
 187         int cursor_x = get_relative_cursor_x();
 188         int cursor_y = get_relative_cursor_y();
 189
 190         if( get_cursor_over_window() &&
 191                 cursor_x >= 0 && cursor_y >= 0 &&
 192                 cursor_x < get_w() && cursor_y < get_h() )
 193         {
 194 //printf("TrackCanvas::drag_motion %d %d\n", __LINE__, pane->number);
 195 // Find the edit and track the cursor is over
 196                 for(Track *track = mwindow->edl->tracks->first; track; track = track->next)
 197                 {
 198                         int64_t track_x, track_y, track_w, track_h;
 199                         track_dimensions(track, track_x, track_y, track_w, track_h);
 200
 201                         if(cursor_y >= track_y &&
 202                                 cursor_y < track_y + track_h)
 203                         {
 204                                 *over_track = track;
 205                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
 206                                 {
 207                                         int64_t edit_x, edit_y, edit_w, edit_h;
 208                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 209                                         if( cursor_y < edit_y || cursor_y >= edit_y + edit_h ) continue;
 210                                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w ) {
 211                                                 *over_edit = edit;
 212                                                 break;
 213                                         }
 214                                         if( edit != track->edits->last ) continue;
 215                                         if( mwindow->session->current_operation != DRAG_ATRANSITION &&
 216                                             mwindow->session->current_operation != DRAG_VTRANSITION ) continue;
 217                                         if( !edit->silence() ) {
 218                                                 // add silence to allow drag transition past last edit
 219                                                 //  will be deleted by Edits::optimize if not used
 220                                                 double length = mwindow->edl->session->default_transition_length;
 221                                                 int64_t start = edit->startproject+edit->length;
 222                                                 int64_t units = track->to_units(length, 1);
 223                                                 track->edits->create_silence(start, start+units);
 224                                                 continue;
 225                                         }
 226                                         if( cursor_x >= edit_x ) { *over_edit = edit; break; }
 227                                 }
 228
 229                                 for(int i = 0; i < track->plugin_set.total; i++)
 230                                 {
 231                                         PluginSet *pluginset = track->plugin_set.values[i];
 232                                         for(Plugin *plugin = (Plugin*)pluginset->first;
 233                                                 plugin;
 234                                                 plugin = (Plugin*)plugin->next)
 235                                         {
 236                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
 237                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
 238
 239                                                 if(cursor_y >= plugin_y &&
 240                                                         cursor_y < plugin_y + plugin_h)
 241                                                 {
 242                                                         *over_pluginset = plugin->plugin_set;
 243
 244                                                         if(cursor_x >= plugin_x &&
 245                                                                 cursor_x < plugin_x + plugin_w)
 246                                                         {
 247                                                                 *over_plugin = plugin;
 248                                                                 break;
 249                                                         }
 250                                                 }
 251                                         }
 252                                 }
 253                                 break;
 254                         }
 255                 }
 256         }
 257
 258         if( !*over_track )
 259                 *over_track = pane->over_patchbay();
 260
 261         return 0;
 262 }
 263
 264
 265 int TrackCanvas::drag_stop_event()
 266 {
 267         int result = gui->drag_stop();
 268         if( !result && mwindow->session->current_operation ) {
 269                 mwindow->session->current_operation = NO_OPERATION;
 270                 drag_scroll = 0;
 271         }
 272         return result;
 273 }
 274
 275 int TrackCanvas::drag_stop(int *redraw)
 276 {
 277         int result = 0;
 278         int insertion  = 0;
 279         int over_window = 0;
 280         int cursor_x = -1, cursor_y = -1;
 281
 282         if( get_cursor_over_window() ) {
 283                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
 284                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
 285                         over_window = 1;
 286                 else {
 287                         Track *track = pane->over_patchbay();
 288                         if( track && mwindow->session->track_highlighted == track )
 289                                 over_window = 1;
 290                 }
 291         }
 292
 293         if( over_window ) {
 294                 switch(mwindow->session->current_operation) {
 295                 case DRAG_VTRANSITION:
 296                 case DRAG_ATRANSITION:
 297                         if(mwindow->session->edit_highlighted) {
 298                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
 299                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 300                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
 301                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
 302                                         mwindow->session->current_operation = NO_OPERATION;
 303                                         mwindow->paste_transition();
 304                                         result = 1;
 305                                 }
 306                         }
 307                         *redraw = 1;
 308                         break;
 309
 310 // Behavior for dragged plugins is limited by the fact that a shared plugin
 311 // can only refer to a standalone plugin that exists in the same position in
 312 // time.  Dragging a plugin from one point in time to another can't produce
 313 // a shared plugin to the original plugin.  In this case we relocate the
 314 // plugin instead of sharing it.
 315                 case DRAG_AEFFECT_COPY:
 316                 case DRAG_VEFFECT_COPY:
 317                         if( mwindow->session->track_highlighted &&
 318                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
 319                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 320                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
 321                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 322                                 mwindow->session->current_operation = NO_OPERATION;
 323
 324                                 int64_t drop_position = -1;
 325                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
 326                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
 327                                 Track *hi_track = mwindow->session->track_highlighted;
 328
 329 // Insert shared plugin in source
 330 // Move source to different location
 331                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
 332 //printf("TrackCanvas::drag_stop 6\n");
 333                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
 334                                         if( drop_position < 0 ) {
 335                                                 result = 1;
 336                                                 break;          // Do not do anything
 337                                         }
 338
 339                                         Track *track = mwindow->session->track_highlighted;
 340                                         drop_position = track->frame_align(drop_position, 0);
 341                                         mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
 342                                         result = 1;
 343                                 }
 344                                 else if( hi_track ) {
 345 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
 346                                         Edit *hi_edit = mwindow->session->edit_highlighted;
 347                                         drop_position = hi_edit ? hi_edit->startproject : 0;
 348                                         if( drop_position < 0 ) {
 349                                                 result = 1;
 350                                                 break;          // Do not do anything
 351                                         }
 352
 353                                         Track *track = mwindow->session->track_highlighted;
 354                                         drop_position = track->frame_align(drop_position, 0);
 355                                         mwindow->move_effect(drag_plugin, hi_track, drop_position);
 356                                         result = 1;
 357                                 }
 358                         }
 359                         break;
 360
 361                 case DRAG_AEFFECT:
 362                 case DRAG_VEFFECT:
 363                         if( mwindow->session->track_highlighted &&
 364                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
 365                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 366                              (mwindow->session->current_operation == DRAG_VEFFECT &&
 367                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 368 // Drop all the effects
 369                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
 370                                 Track *track = mwindow->session->track_highlighted;
 371                                 double start = 0;
 372                                 double length = track->get_length();
 373
 374                                 if(mwindow->session->plugin_highlighted) {
 375                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
 376                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
 377                                         if(length <= 0) length = track->get_length();
 378                                 }
 379                                 else if(mwindow->session->pluginset_highlighted) {
 380                                                 start = track->from_units(plugin_set->length());
 381                                         length = track->get_length() - start;
 382                                         if(length <= 0) length = track->get_length();
 383                                 }
 384                                 else if(mwindow->edl->local_session->get_selectionend() >
 385                                         mwindow->edl->local_session->get_selectionstart()) {
 386                                         start = mwindow->edl->local_session->get_selectionstart();
 387                                         length = mwindow->edl->local_session->get_selectionend() -
 388                                                 mwindow->edl->local_session->get_selectionstart();
 389                                 }
 390 // Move to a point between two edits
 391                                 else if(mwindow->session->edit_highlighted) {
 392                                         start = mwindow->session->track_highlighted->from_units(
 393                                                 mwindow->session->edit_highlighted->startproject);
 394                                         length = mwindow->session->track_highlighted->from_units(
 395                                                 mwindow->session->edit_highlighted->length);
 396                                 }
 397                                 start = mwindow->edl->align_to_frame(start, 0);
 398                                 mwindow->insert_effects_canvas(start, length);
 399                                 *redraw = 1;
 400                         }
 401                         if( mwindow->session->track_highlighted )
 402                                 result = 1;  // we have to cleanup
 403                         break;
 404
 405                 case DRAG_ASSET:
 406                         if(mwindow->session->track_highlighted) {
 407                                 double asset_duration = 0;
 408                                 int64_t asset_length_units = 0;
 409
 410                                 if(mwindow->session->current_operation == DRAG_ASSET &&
 411                                         mwindow->session->drag_assets->total) {
 412                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
 413                                         // we use video if we are over video and audio if we are over audio
 414                                         if( indexable->have_video() &&
 415                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
 416                                                 // Images have length -1
 417                                                 int64_t video_length = indexable->get_video_frames();
 418                                                 if (video_length < 0) {
 419                                                         if(mwindow->edl->session->si_useduration)
 420                                                                 video_length = mwindow->edl->session->si_duration;
 421                                                         else
 422                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ;
 423                                                 }
 424                                                 asset_duration = video_length / indexable->get_frame_rate();
 425                                         }
 426                                         else if( indexable->have_audio() &&
 427                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
 428                                                 int64_t audio_length = indexable->get_audio_samples();
 429                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
 430                                         }
 431                                         else {
 432                                                 result = 1;
 433                                                 break;  // Do not do anything
 434                                         }
 435                                 }
 436                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
 437                                          mwindow->session->drag_clips->total ) {
 438                                         EDL *clip = mwindow->session->drag_clips->values[0];
 439                                         asset_duration = clip->tracks->total_length();
 440                                 }
 441                                 else {
 442                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
 443                                 }
 444
 445                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
 446                                 int64_t drop_position = drop_edit_position (&insertion, NULL, asset_length_units);
 447                                 if( drop_position < 0 ) {
 448                                         result = 1;
 449                                         break;          // Do not do anything
 450                                 }
 451
 452                                 Track *track = mwindow->session->track_highlighted;
 453                                 double track_position = track->from_units(drop_position);
 454                                 track_position = mwindow->edl->align_to_frame(track_position, 0);
 455
 456 //                              if (!insertion) {
 457 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
 458 //                                      // Unfortunately, this is _a lot_ of work to do right
 459 //                                      printf("Problematic insertion\n");
 460 //                                      mwindow->edl->tracks->clear(track_position,
 461 //                                              track_position + asset_duration, 0);
 462 //                              }
 463                                 mwindow->paste_assets(track_position, track, !insertion);
 464                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
 465                         }
 466                         break;
 467
 468                 case DRAG_EDIT:
 469                         mwindow->session->current_operation = NO_OPERATION;
 470                         if(mwindow->session->track_highlighted) {
 471                                 if( mwindow->session->track_highlighted->data_type ==
 472                                         mwindow->session->drag_edit->track->data_type) {
 473                                         int64_t drop_position = drop_edit_position(&insertion,
 474                                                         mwindow->session->drag_edit,
 475                                                         mwindow->session->drag_edit->length);
 476                                         if( drop_position < 0 ) {
 477                                                 result = 1;
 478                                                 break;          // Do not do anything
 479                                         }
 480                                         Track *track = mwindow->session->track_highlighted;
 481                                         double track_position = track->from_units(drop_position);
 482                                         track_position = mwindow->edl->align_to_frame(track_position, 0);
 483                                         mwindow->move_edits(mwindow->session->drag_edits,
 484                                                         track, track_position, !insertion);
 485                                 }
 486
 487                                 result = 1;
 488                         }
 489                         break;
 490                 }
 491         }
 492
 493         return result;
 494 }
 495
 496 int TrackCanvas::drag_start_event()
 497 {
 498         int result = 0;
 499         int redraw = 0;
 500         int rerender = 0;
 501         int new_cursor, update_cursor;
 502
 503         if(mwindow->session->current_operation != NO_OPERATION) return 0;
 504
 505         if(is_event_win()) {
 506                 if(do_plugins(get_drag_x(), get_drag_y(),
 507                                 1, 0, redraw, rerender)) {
 508                         result = 1;
 509                 }
 510                 else if(do_edits(get_drag_x(), get_drag_y(),
 511                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
 512                         result = 1;
 513                 }
 514         }
 515
 516         return result;
 517 }
 518
 519 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
 520 {
 521         // get the canvas/track position
 522         Track *track = mwindow->session->track_highlighted;
 523         int cursor_x = get_relative_cursor_x();
 524         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 525         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 526         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 527         if( position <= 0 ) {
 528                 *is_insertion = 1;
 529                 return 0;
 530         }
 531         double cursor_position = position;
 532         int64_t drop_position = track->to_units(cursor_position, 1);
 533         if( moved_edit ) { // relative cursor position depends upon drop point
 534                 double moved_edit_start = moved_edit->track->from_units(moved_edit->startproject);
 535                 position -= mwindow->session->drag_position - moved_edit_start;
 536         }
 537         int64_t edit_position = track->to_units(position, 1);
 538         int64_t grab_position = edit_position;
 539         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
 540                 grab_position -= moved_edit_length / 2;
 541         Edit *last_edit = track->edits->last;
 542         if( !last_edit || edit_position >= (last_edit->startproject+last_edit->length) ) {
 543                 *is_insertion = 0;
 544                 return grab_position;
 545         }
 546
 547         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 548         Edit *next_edit = track->edits->first;
 549         while( next_edit ) {
 550                 Edit *edit = next_edit;  next_edit = (Edit *)edit->next;
 551                 int64_t edit_start = edit->startproject;
 552                 int64_t edit_end = edit_start + edit->length;
 553                 double edit_start_pos = edit->track->from_units(edit_start);
 554                 if( (fabs(edit_start_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 555                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
 556                         return edit_start;
 557                 }
 558                 double edit_end_pos = edit->track->from_units(edit_end);
 559                 if( (fabs(edit_end_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 560                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
 561                         return edit_end;
 562                 }
 563                 if( edit != moved_edit && !edit->silence() )
 564                         drop_start = edit_end; // reset drop zone
 565                 if( next_edit ) {
 566                         if( next_edit == moved_edit || next_edit->silence() ) continue;
 567                         drop_end = edit_end;
 568                 }
 569                 else
 570                         drop_end = INT64_MAX;
 571                 if( edit_position >= drop_start &&
 572                     edit_position+moved_edit_length < drop_end ) {
 573                         *is_insertion = 0; // fits in the zone
 574                         return edit_position;
 575                 }
 576                 if( drop_position < drop_end ) { // drop in the zone
 577                         if( (drop_end - drop_start) >= moved_edit_length ) {
 578                                 *is_insertion = 0; // fits in the zone, but over the edge
 579                                 int64_t dx0 = llabs(drop_position - drop_start);
 580                                 int64_t dx1 = llabs(drop_position - drop_end);
 581                                 return dx0 < dx1 ? drop_start : drop_end - moved_edit_length;
 582                         }
 583                         *is_insertion = 1;
 584                         int64_t edit_center = (edit_start + edit_end) / 2;
 585                         return position < edit_center ? drop_start : drop_end;
 586                 }
 587         }
 588
 589         *is_insertion = 0;
 590         return -1;
 591 }
 592
 593 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
 594 {
 595         // get the canvas/track position
 596         Track *track = plugin_set->track;
 597         double moved_plugin_length = moved_plugin->track->from_units(moved_plugin->length);
 598         int64_t track_plugin_length = track->to_units(moved_plugin_length, 0);
 599         int cursor_x = get_relative_cursor_x();
 600         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 601         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 602         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 603         if( position <= 0 ) return 0;
 604         int64_t drop_position = track->to_units(position, 1);
 605         Plugin *last_plugin = (Plugin *)plugin_set->last;
 606         if( !last_plugin ) return drop_position;
 607         double plugin_set_end = last_plugin->track->from_units(last_plugin->startproject+last_plugin->length);
 608         if( position >= plugin_set_end ) return drop_position;
 609         double moved_plugin_start = moved_plugin->track->from_units(moved_plugin->startproject);
 610         position -= mwindow->session->drag_position - moved_plugin_start;
 611         int64_t plugin_position = track->to_units(position, 1);
 612
 613         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 614         Plugin *next_plugin = (Plugin *)plugin_set->first;
 615         while( next_plugin ) {
 616                 Plugin *plugin = next_plugin;  next_plugin = (Plugin *)plugin->next;
 617                 int64_t plugin_start = plugin->startproject;
 618                 int64_t plugin_end = plugin_start + plugin->length;
 619                 double plugin_end_pos = plugin->track->from_units(plugin_end);
 620                 int64_t track_plugin_end = track->to_units(plugin_end_pos, 0);
 621                 if( plugin != moved_plugin && !plugin->silence() )
 622                         drop_start = track_plugin_end;
 623                 if( next_plugin ) {
 624                         if( next_plugin == moved_plugin || next_plugin->silence() ) continue;
 625                         drop_end = track_plugin_end;
 626                 }
 627                 else
 628                         drop_end = INT64_MAX;
 629                 if( plugin_position >= drop_start && // fits in the zone
 630                     plugin_position+track_plugin_length < drop_end ) {
 631                         return plugin_position;
 632                 }
 633                 if( drop_position < drop_end ) { // drop in the zone
 634                         if( (drop_end - drop_start) >= track_plugin_length ) {
 635                                 int64_t dx0 = llabs(drop_position - drop_start);
 636                                 int64_t dx1 = llabs(drop_position - drop_end);
 637                                 return dx0 < dx1 ? drop_start : drop_end - track_plugin_length;
 638                         }
 639                 }
 640         }
 641
 642         return -1;
 643 }
 644
 645 void TrackCanvas::draw(int mode, int hide_cursor)
 646 {
 647         const int debug = 0;
 648
 649
 650 // Swap pixmap layers
 651         if(get_w() != background_pixmap->get_w() ||
 652                 get_h() != background_pixmap->get_h())
 653         {
 654                 delete background_pixmap;
 655                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 656         }
 657
 658 // Cursor disappears after resize when this is called.
 659 // Cursor doesn't redraw after editing when this isn't called.
 660         if(pane->cursor && hide_cursor) pane->cursor->hide();
 661         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
 662
 663         if(debug) PRINT_TRACE
 664         draw_resources(mode);
 665
 666         if(debug) PRINT_TRACE
 667         draw_overlays();
 668         if(debug) PRINT_TRACE
 669 }
 670
 671 void TrackCanvas::update_cursor(int flush)
 672 {
 673         switch(mwindow->edl->session->editing_mode)
 674         {
 675                 case EDITING_ARROW: set_cursor(ARROW_CURSOR, 0, flush); break;
 676                 case EDITING_IBEAM: set_cursor(IBEAM_CURSOR, 0, flush); break;
 677         }
 678 }
 679
 680
 681 void TrackCanvas::test_timer()
 682 {
 683         if(resource_timer->get_difference() > 1000 &&
 684                 !hourglass_enabled)
 685         {
 686                 start_hourglass();
 687                 hourglass_enabled = 1;
 688         }
 689 }
 690
 691
 692 void TrackCanvas::draw_indexes(Indexable *indexable)
 693 {
 694         IndexState *index_state = indexable->index_state;
 695 // Don't redraw raw samples
 696         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
 697                 return;
 698         draw_resources(0, 1, indexable);
 699         draw_overlays();
 700         flash(0);
 701 }
 702
 703 void TrackCanvas::draw_resources(int mode,
 704         int indexes_only,
 705         Indexable *indexable)
 706 {
 707         const int debug = 0;
 708
 709         if(debug) PRINT_TRACE
 710
 711 // can't stop thread here, because this is called for every pane
 712 //      if(mode != IGNORE_THREAD && !indexes_only)
 713 //              gui->resource_thread->stop_draw(!indexes_only);
 714
 715         if(mode != IGNORE_THREAD &&
 716                 !indexes_only &&
 717                 !gui->resource_thread->interrupted)
 718         {
 719                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
 720                         __LINE__);
 721
 722                 BC_Signals::dump_stack();
 723         }
 724
 725         if(debug) PRINT_TRACE
 726
 727         resource_timer->update();
 728
 729 // Age resource pixmaps for deletion
 730         if(!indexes_only)
 731                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 732                         gui->resource_pixmaps.values[i]->visible--;
 733
 734         if(mode == FORCE_REDRAW)
 735                 gui->resource_pixmaps.remove_all_objects();
 736
 737         if(debug) PRINT_TRACE
 738
 739 // Search every edit
 740         for(Track *current = mwindow->edl->tracks->first;
 741                 current;
 742                 current = NEXT)
 743         {
 744                 if(debug) PRINT_TRACE
 745                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
 746                 {
 747                         if(debug) PRINT_TRACE
 748                         if( current->data_type != TRACK_SUBTITLE )
 749                                 if(!edit->asset && !edit->nested_edl) continue;
 750                         if(indexes_only)
 751                         {
 752                                 if(edit->track->data_type != TRACK_AUDIO) continue;
 753
 754                                 if(edit->nested_edl &&
 755                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
 756
 757                                 if(edit->asset &&
 758                                         strcmp(indexable->path, edit->asset->path)) continue;
 759                         }
 760
 761                         if(debug) PRINT_TRACE
 762
 763                         int64_t edit_x, edit_y, edit_w, edit_h;
 764                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 765
 766 // Edit is visible
 767                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
 768                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
 769                         {
 770                                 int64_t pixmap_x, pixmap_w, pixmap_h;
 771                                 if(debug) PRINT_TRACE
 772
 773 // Search for existing pixmap containing edit
 774                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 775                                 {
 776                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
 777 // Same pointer can be different edit if editing took place
 778                                         if(pixmap->edit_id == edit->id &&
 779                                                 pixmap->pane_number == pane->number)
 780                                         {
 781                                                 pixmap->visible = 1;
 782                                                 break;
 783                                         }
 784                                 }
 785                                 if(debug) PRINT_TRACE
 786
 787 // Get new size, offset of pixmap needed
 788                                 get_pixmap_size(edit,
 789                                         edit_x,
 790                                         edit_w,
 791                                         pixmap_x,
 792                                         pixmap_w,
 793                                         pixmap_h);
 794                                 if(debug) PRINT_TRACE
 795
 796 // Draw new data
 797                                 if(pixmap_w && pixmap_h)
 798                                 {
 799 // Create pixmap if it doesn't exist
 800                                         ResourcePixmap* pixmap = create_pixmap(edit, edit_x,
 801                                                 pixmap_x, pixmap_w, pixmap_h);
 802 // Resize it if it's bigger
 803                                         if( pixmap_w > pixmap->pixmap_w ||
 804                                             pixmap_h > pixmap->pixmap_h)
 805                                                 pixmap->resize(pixmap_w, pixmap_h);
 806                                         pixmap->update_settings(edit, edit_x, edit_w,
 807                                                 pixmap_x, pixmap_w, pixmap_h);
 808 // Draw data
 809                                         if( current->show_assets() )
 810                                                 pixmap->draw_data(this,
 811                                                         edit, edit_x, edit_w,
 812                                                         pixmap_x, pixmap_w, pixmap_h,
 813                                                         mode, indexes_only);
 814                                         else {
 815                                                 set_bg_color(BLACK);
 816                                                 clear_box(0,0, pixmap_w,pixmap_h, pixmap);
 817                                         }
 818 // Draw title
 819                                         if( current->show_titles() )
 820                                                 pixmap->draw_title(this,
 821                                                         edit, edit_x, edit_w,
 822                                                         pixmap_x, pixmap_w);
 823 // Resize it if it's smaller
 824                                         if(pixmap_w < pixmap->pixmap_w ||
 825                                                 pixmap_h < pixmap->pixmap_h)
 826                                                 pixmap->resize(pixmap_w, pixmap_h);
 827
 828 // Copy pixmap to background canvas
 829                                         background_pixmap->draw_pixmap(pixmap,
 830                                                 pixmap->pixmap_x,
 831                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
 832                                                 pixmap->pixmap_w,
 833                                                 edit_h);
 834                                 }
 835                                 if(debug) PRINT_TRACE
 836
 837                         }
 838                 }
 839         }
 840
 841
 842 // Delete unused pixmaps
 843         if(debug) PRINT_TRACE
 844         if(!indexes_only)
 845                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 846                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 847                         {
 848 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 849                                 delete gui->resource_pixmaps.values[i];
 850                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 851                         }
 852         if(debug) PRINT_TRACE
 853
 854         if(hourglass_enabled)
 855         {
 856                 stop_hourglass();
 857                 hourglass_enabled = 0;
 858         }
 859         if(debug) PRINT_TRACE
 860
 861 // can't stop thread here, because this is called for every pane
 862 //      if(mode != IGNORE_THREAD && !indexes_only)
 863 //              gui->resource_thread->start_draw();
 864         if(debug) PRINT_TRACE
 865
 866
 867 }
 868
 869 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 870         int64_t edit_x,
 871         int64_t pixmap_x,
 872         int64_t pixmap_w,
 873         int64_t pixmap_h)
 874 {
 875         ResourcePixmap *result = 0;
 876
 877         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 878         {
 879 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 880                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 881                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 882                 {
 883                         result = gui->resource_pixmaps.values[i];
 884                         break;
 885                 }
 886         }
 887
 888         if(!result)
 889         {
 890 //SET_TRACE
 891                 result = new ResourcePixmap(mwindow,
 892                         gui,
 893                         edit,
 894                         pane->number,
 895                         pixmap_w,
 896                         pixmap_h);
 897 //SET_TRACE
 898                 gui->resource_pixmaps.append(result);
 899         }
 900
 901 //      result->resize(pixmap_w, pixmap_h);
 902         return result;
 903 }
 904
 905 void TrackCanvas::get_pixmap_size(Edit *edit,
 906         int64_t edit_x,
 907         int64_t edit_w,
 908         int64_t &pixmap_x,
 909         int64_t &pixmap_w,
 910         int64_t &pixmap_h)
 911 {
 912
 913 // Align x on frame boundaries
 914
 915
 916 //      switch(edit->edits->track->data_type)
 917 //      {
 918 //              case TRACK_AUDIO:
 919
 920                         pixmap_x = edit_x;
 921                         pixmap_w = edit_w;
 922                         if(pixmap_x < 0)
 923                         {
 924                                 pixmap_w -= -edit_x;
 925                                 pixmap_x = 0;
 926                         }
 927
 928                         if(pixmap_x + pixmap_w > get_w())
 929                         {
 930                                 pixmap_w = get_w() - pixmap_x;
 931                         }
 932
 933 //                      break;
 934 //
 935 //              case TRACK_VIDEO:
 936 //              {
 937 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 938 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 939 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 940 //                      int64_t pixmap_x1 = edit_x;
 941 //                      int64_t pixmap_x2 = edit_x + edit_w;
 942 //
 943 //                      if(pixmap_x1 < 0)
 944 //                      {
 945 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
 946 //                                      pixel_increment +
 947 //                                      edit_x;
 948 //                      }
 949 //
 950 //                      if(pixmap_x2 > get_w())
 951 //                      {
 952 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
 953 //                                      pixel_increment +
 954 //                                      edit_x;
 955 //                      }
 956 //                      pixmap_x = pixmap_x1;
 957 //                      pixmap_w = pixmap_x2 - pixmap_x1;
 958 //                      break;
 959 //              }
 960 //      }
 961
 962         pixmap_h = mwindow->edl->local_session->zoom_track;
 963         Track *track = edit->edits->track;
 964         if( track->show_titles() )
 965                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
 966 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
 967 }
 968
 969 void TrackCanvas::edit_dimensions(Edit *edit,
 970         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
 971 {
 972         x = Units::round(edit->track->from_units(edit->startproject) *
 973                         mwindow->edl->session->sample_rate /
 974                         mwindow->edl->local_session->zoom_sample -
 975                         mwindow->edl->local_session->view_start[pane->number]);
 976
 977         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
 978
 979 // Method for calculating w so when edits are together we never get off by one error due to rounding
 980         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
 981                         mwindow->edl->session->sample_rate /
 982                         mwindow->edl->local_session->zoom_sample -
 983                         mwindow->edl->local_session->view_start[pane->number]);
 984         w = x_next - x;
 985
 986         int edit_h = 0;
 987         if( edit->track->show_titles() )
 988                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
 989         if( edit->track->show_assets() )
 990                 edit_h += resource_h();
 991         h = edit_h;
 992 }
 993
 994 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
 995 {
 996         x = 0;
 997         w = get_w();
 998         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
 999         h = track->vertical_span(mwindow->theme);
1000 }
1001
1002
1003 void TrackCanvas::draw_paste_destination()
1004 {
1005         //int cursor_x = get_relative_cursor_x();
1006         //int cursor_y = get_relative_cursor_y();
1007         int current_atrack = 0;
1008         int current_vtrack = 0;
1009         int current_aedit = 0;
1010         int current_vedit = 0;
1011         int64_t w = 0;
1012         int64_t x;
1013         double position;
1014         int insertion  = 0;
1015
1016 //if(pane->number == BOTTOM_RIGHT_PANE)
1017 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1018
1019         if((mwindow->session->current_operation == DRAG_ASSET &&
1020                         (mwindow->session->drag_assets->total ||
1021                         mwindow->session->drag_clips->total)) ||
1022                 (mwindow->session->current_operation == DRAG_EDIT &&
1023                         mwindow->session->drag_edits->total)) {
1024                 Indexable *indexable = 0;
1025                 EDL *clip = 0;
1026                 //int draw_box = 0;
1027
1028                 if(mwindow->session->current_operation == DRAG_ASSET &&
1029                         mwindow->session->drag_assets->size())
1030                         indexable = mwindow->session->drag_assets->get(0);
1031
1032                 if(mwindow->session->current_operation == DRAG_ASSET &&
1033                         mwindow->session->drag_clips->size())
1034                         clip = mwindow->session->drag_clips->get(0);
1035
1036                 int has_audio = 0, has_video = 0;
1037                 double paste_audio_length = 0, paste_video_length = 0;
1038                 double paste_audio_position = -1, paste_video_position = -1;
1039
1040                 if( indexable ) {
1041                         has_audio = indexable->have_audio();
1042                         paste_audio_length = !has_audio ? 0 :
1043                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1044                         has_video = indexable->have_video();
1045                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1046                         // Images have length -1
1047                         if( asset && asset->video_data && asset->video_length < 0 ) {
1048                                 paste_video_length = mwindow->edl->session->si_useduration ?
1049                                         mwindow->edl->session->si_duration / asset->frame_rate :
1050                                         1.0 / asset->frame_rate ;  // 1 frame
1051                         }
1052                         else
1053                                 paste_video_length = !has_video ? 0 :
1054                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1055                 }
1056
1057                 if( clip ) {
1058                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1059                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1060                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1061                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1062                 }
1063
1064 // 'Align cursor on frame' lengths calculations
1065                 if( mwindow->edl->session->cursor_on_frames ) {
1066                         double fps = mwindow->edl->session->frame_rate;
1067                         double aud = floor(paste_audio_length * fps) / fps;
1068                         double vid = floor(paste_video_length * fps) / fps;
1069                         double length = has_video && has_audio ?
1070                                         aud < vid ? aud : vid :
1071                                 has_video ? vid :
1072                                 has_audio ? aud : 0;
1073                         paste_video_length = paste_audio_length = length;
1074                 }
1075
1076                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1077                         int64_t length = 0;
1078                         switch( mwindow->session->track_highlighted->data_type ) {
1079                         case TRACK_VIDEO: length = paste_video_length;  break;
1080                         case TRACK_AUDIO: length = paste_audio_length;  break;
1081                         }
1082                         int64_t asset_length = mwindow->session->track_highlighted->
1083                                 to_units(length, 1);
1084                         paste_audio_position = mwindow->session->track_highlighted->
1085                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1086                 }
1087                 if( has_video ) {
1088                         int64_t asset_length = mwindow->session->track_highlighted->
1089                                 to_units(paste_video_length, 1);
1090                         paste_video_position = mwindow->session->track_highlighted->
1091                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1092                 }
1093
1094 // Get destination track
1095                 for(Track *dest = mwindow->session->track_highlighted;
1096                         dest;
1097                         dest = dest->next) {
1098                         if(dest->record) {
1099 // Get source width in pixels
1100                                 w = -1;
1101 // Use start of highlighted edit
1102                                 if(mwindow->session->edit_highlighted) {
1103                                         position = mwindow->session->track_highlighted->from_units(
1104                                                 mwindow->session->edit_highlighted->startproject);
1105                                 }
1106                                 else {
1107 // Use end of highlighted track, disregarding effects
1108                                         position = mwindow->session->track_highlighted->from_units(
1109                                                 mwindow->session->track_highlighted->edits->length());
1110                                 }
1111
1112 // Get the x coordinate
1113                                 x = Units::to_int64(position *
1114                                         mwindow->edl->session->sample_rate /
1115                                         mwindow->edl->local_session->zoom_sample) -
1116                                         mwindow->edl->local_session->view_start[pane->number];
1117
1118                                 double paste_position = -1.;
1119                                 if(dest->data_type == TRACK_AUDIO) {
1120                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1121 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1122                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1123                                                         indexable->get_sample_rate() *
1124                                                         mwindow->edl->session->sample_rate /
1125                                                         mwindow->edl->local_session->zoom_sample);
1126                                                 paste_position = paste_audio_position;
1127                                         }
1128                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1129                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1130                                                         mwindow->edl->session->sample_rate /
1131                                                         mwindow->edl->local_session->zoom_sample);
1132                                                 paste_position = paste_audio_position;
1133 //printf("draw_paste_destination %d\n", x);
1134                                         }
1135                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1136                                                 current_aedit < mwindow->session->drag_edits->total) {
1137                                                 Edit *edit;
1138                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1139                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1140                                                         current_aedit++;
1141
1142                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1143                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1144                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1145                                                         paste_position = mwindow->session->track_highlighted->
1146                                                                 from_units(drop_edit_position(&insertion,
1147                                                                         mwindow->session->drag_edit,
1148                                                                         mwindow->session->drag_edit->length));
1149                                                         current_aedit++;
1150                                                 }
1151                                         }
1152                                         if( paste_position >= 0 ) {
1153                                                 position = paste_position;
1154                                                 current_atrack++;
1155                                                 //draw_box = 1;
1156                                         }
1157                                         else
1158                                                 w = -1;
1159                                 }
1160                                 else if(dest->data_type == TRACK_VIDEO) {
1161 //printf("draw_paste_destination 1\n");
1162                                         if(indexable && current_vtrack < indexable->get_video_layers())
1163                                         {
1164                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1165                                                         indexable->get_frame_rate() *
1166                                                         mwindow->edl->session->sample_rate /
1167                                                         mwindow->edl->local_session->zoom_sample);
1168                                                 paste_position = paste_video_position;
1169                                         }
1170                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1171                                                 w = Units::to_int64(clip->tracks->total_length() *
1172                                                         mwindow->edl->session->sample_rate /
1173                                                         mwindow->edl->local_session->zoom_sample);
1174                                                 paste_position = paste_video_position;
1175                                         }
1176                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1177                                                 current_vedit < mwindow->session->drag_edits->total) {
1178                                                 Edit *edit;
1179                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1180                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1181                                                         current_vedit++;
1182
1183                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1184                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1185                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1186                                                                 mwindow->edl->session->sample_rate /
1187                                                                 mwindow->edl->local_session->zoom_sample);
1188                                                         paste_position = mwindow->session->track_highlighted->
1189                                                                 from_units(drop_edit_position(&insertion,
1190                                                                         mwindow->session->drag_edit,
1191                                                                         mwindow->session->drag_edit->length));
1192                                                         current_vedit++;
1193                                                 }
1194                                         }
1195                                         if( paste_position >= 0 ) {
1196                                                 position = paste_position;
1197                                                 current_vedit++;
1198                                                 //draw_box = 1;
1199                                         }
1200                                         else
1201                                                 w = -1;
1202                                 }
1203
1204                                 if(w >= 0) {
1205 // Get the x coordinate
1206                                         x = Units::to_int64(position *
1207                                                 mwindow->edl->session->sample_rate /
1208                                                 mwindow->edl->local_session->zoom_sample) -
1209                                                 mwindow->edl->local_session->view_start[pane->number];
1210                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1211                                         int h = dest->vertical_span(mwindow->theme);
1212
1213 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1214                                         if(x < -BC_INFINITY) {
1215                                                 w -= -BC_INFINITY - x;
1216                                                 x += -BC_INFINITY - x;
1217                                         }
1218                                         w = MIN(65535, w);
1219 // if(pane->number == TOP_RIGHT_PANE)
1220 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1221 // __LINE__, x, y, w, h);
1222                                         if (insertion)
1223                                                 draw_highlight_insertion(x, y, w, h);
1224                                         else
1225                                                 draw_highlight_rectangle(x, y, w, h);
1226                                 }
1227                         }
1228                 }
1229         }
1230 }
1231
1232 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1233 {
1234         x = Units::round(plugin->track->from_units(plugin->startproject) *
1235                 mwindow->edl->session->sample_rate /
1236                 mwindow->edl->local_session->zoom_sample -
1237                 mwindow->edl->local_session->view_start[pane->number]);
1238         w = Units::round(plugin->track->from_units(plugin->length) *
1239                 mwindow->edl->session->sample_rate /
1240                 mwindow->edl->local_session->zoom_sample);
1241         y = plugin->track->y_pixel
1242                 - mwindow->edl->local_session->track_start[pane->number];
1243         if( plugin->track->show_titles() )
1244                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1245         if( plugin->track->show_assets() )
1246                 y += resource_h();
1247         y += plugin->plugin_set->get_number() *
1248                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1249         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1250 }
1251
1252 int TrackCanvas::resource_h()
1253 {
1254         return mwindow->edl->local_session->zoom_track;
1255 }
1256
1257 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1258 {
1259
1260 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1261 // just draw arrows, so user has indication that something is there
1262 // FIXME: get better colors
1263
1264         if (x + w <= 0)
1265         {
1266                 draw_triangle_left(0, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1267                 return;
1268         } else
1269         if (x >= get_w())
1270         {
1271                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1272                 return;
1273         }
1274
1275 // Fix bug in heroines & cvs version as of 22.8.2005:
1276 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1277         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1278         if(x < -10)
1279         {
1280                 w += x - -10;
1281                 x = -10;
1282         }
1283
1284         if(y < -10)
1285         {
1286                 h += y - -10;
1287                 y = -10;
1288         }
1289
1290         w = MIN(w, get_w() + 20);
1291         h = MIN(h, get_h() + 20);
1292         if(w > 0 && h > 0)
1293         {
1294                 set_color(mwindow->preferences->highlight_inverse);
1295                 set_inverse();
1296                 //draw_rectangle(x, y, w, h);
1297                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1298                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1299                 set_opaque();
1300                 draw_rectangle(x, y, w, h);
1301         }
1302 //if(pane->number == TOP_RIGHT_PANE)
1303 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1304 }
1305
1306 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1307 {
1308
1309 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1310 // just draw arrows, so user has indication that something is there
1311 // FIXME: get better colors
1312
1313
1314
1315         int h1 = h / 8;
1316         int h2 = h / 4;
1317
1318         set_inverse();
1319
1320 /* these don't look so good
1321
1322         draw_line(x, y, x, y+h);
1323         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1324         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1325         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1326         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1327 */
1328         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1329         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1330
1331 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1332         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1333         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1334         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1335 */
1336         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1337         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1338
1339 // draw the box centred around x
1340         x -= w / 2;
1341 // Fix bug in heroines & cvs version as of 22.8.2005:
1342 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1343         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1344         if(x < -10)
1345         {
1346                 w += x - -10;
1347                 x = -10;
1348         }
1349         if(y < -10)
1350         {
1351                 h += y - -10;
1352                 y = -10;
1353         }
1354         w = MIN(w, get_w() + 20);
1355         h = MIN(h, get_h() + 20);
1356         set_color(mwindow->preferences->highlight_inverse);
1357         set_inverse();
1358         draw_rectangle(x, y, w, h);
1359         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1360         set_opaque();
1361 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1362 }
1363
1364 void TrackCanvas::draw_playback_cursor()
1365 {
1366 // Called before playback_cursor exists
1367 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1368 //      {
1369 //              mwindow->playback_cursor->visible = 0;
1370 //              mwindow->playback_cursor->draw();
1371 //      }
1372 }
1373
1374 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1375 {
1376         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1377         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1378
1379         edit_dimensions(edit, x, y, w, h);
1380
1381         if( edit->track->show_titles() )
1382                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1383
1384         if(side == EDIT_OUT)
1385                 x += w - handle_w;
1386
1387         h = handle_h;
1388         w = handle_w;
1389 }
1390
1391 void TrackCanvas::get_transition_coords(Edit *edit,
1392                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1393 {
1394         int transition_w = 30, transition_h = 30;
1395         int has_titles = edit->track->show_titles();
1396         int has_assets = edit->track->show_assets();
1397         int title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1398         int asset_h2 = resource_h() / 2;
1399
1400         int iy = has_titles ?
1401                 ( has_assets ? title_bg_h + asset_h2 : title_bg_h/2 ) :
1402                 ( has_assets ? asset_h2 : 0) ;
1403         int title_h2 = mwindow->theme->title_h / 2;
1404         if( iy < title_h2 )
1405                 iy = title_h2;
1406         y += iy;
1407
1408         x -= transition_w / 2;
1409         y -= transition_h / 2;
1410         w = transition_w;
1411         h = transition_h;
1412 }
1413
1414 void TrackCanvas::draw_highlighting()
1415 {
1416         int64_t x, y, w, h;
1417         int draw_box = 0;
1418
1419         switch(mwindow->session->current_operation)
1420         {
1421                 case DRAG_ATRANSITION:
1422                 case DRAG_VTRANSITION:
1423 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1424 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1425                         if(mwindow->session->edit_highlighted) {
1426                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1427                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1428                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1429                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1430                                         edit_dimensions(mwindow->session->edit_highlighted,
1431                                                 x, y, w, h);
1432                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1433                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1434                                                 draw_box = 1;
1435                                                 get_transition_coords(mwindow->session->edit_highlighted,
1436                                                         x, y, w, h);
1437                                         }
1438                                 }
1439                         }
1440                         break;
1441
1442 // Dragging a new effect from the Resource window
1443                 case DRAG_AEFFECT:
1444                 case DRAG_VEFFECT:
1445                         if(mwindow->session->track_highlighted &&
1446                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1447                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1448                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1449                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1450 // Put it before another plugin
1451                                 if(mwindow->session->plugin_highlighted) {
1452                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1453                                                 x, y, w, h);
1454 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1455                                 }
1456 // Put it after a plugin set
1457                                 else if( mwindow->session->pluginset_highlighted &&
1458                                          mwindow->session->pluginset_highlighted->last ) {
1459                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1460                                                 x, y, w, h);
1461 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1462                                         int64_t track_x, track_y, track_w, track_h;
1463                                         track_dimensions(mwindow->session->track_highlighted,
1464                                                 track_x, track_y, track_w, track_h);
1465
1466                                         x += w;
1467                                         w = Units::round(
1468                                                         mwindow->session->track_highlighted->get_length() *
1469                                                         mwindow->edl->session->sample_rate /
1470                                                         mwindow->edl->local_session->zoom_sample -
1471                                                         mwindow->edl->local_session->view_start[pane->number]) -
1472                                                 x;
1473 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1474                                         if(w <= 0) w = track_w;
1475                                 }
1476                                 else {
1477                                         track_dimensions(mwindow->session->track_highlighted,
1478                                                 x, y, w, h);
1479
1480 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1481 // Put it in a new plugin set determined by the selected range
1482                                         if(mwindow->edl->local_session->get_selectionend() >
1483                                                 mwindow->edl->local_session->get_selectionstart()) {
1484                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1485                                                         mwindow->edl->session->sample_rate /
1486                                                         mwindow->edl->local_session->zoom_sample -
1487                                                         mwindow->edl->local_session->view_start[pane->number]);
1488                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1489                                                         mwindow->edl->local_session->get_selectionstart()) *
1490                                                         mwindow->edl->session->sample_rate /
1491                                                         mwindow->edl->local_session->zoom_sample);
1492                                         }
1493 // Put it in a new plugin set determined by an edit boundary
1494                                         else if(mwindow->session->edit_highlighted) {
1495                                                 int64_t temp_y, temp_h;
1496                                                 edit_dimensions(mwindow->session->edit_highlighted,
1497                                                         x, temp_y, w, temp_h);
1498                                         }
1499 // Put it at the beginning of the track in a new plugin set
1500                                 }
1501
1502                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1503                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1504 //printf("TrackCanvas::draw_highlighting 1\n");
1505                                         draw_box = 1;
1506                                 }
1507                         }
1508                         break;
1509
1510                 case DRAG_ASSET:
1511                         if(mwindow->session->track_highlighted) {
1512 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1513
1514 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1515 //                              {
1516                                         draw_paste_destination();
1517 //                              }
1518                         }
1519                         break;
1520
1521                 case DRAG_EDIT:
1522                         if(mwindow->session->track_highlighted) {
1523 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1524 //
1525 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1526                                         draw_paste_destination();
1527 //                              }
1528                         }
1529                         break;
1530
1531 // Dragging an effect from the timeline
1532                 case DRAG_AEFFECT_COPY:
1533                 case DRAG_VEFFECT_COPY:
1534                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1535                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1536                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1537                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1538                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1539
1540                                 int64_t plugin_position = -1;
1541                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1542                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1543                                 Track *hi_track = mwindow->session->track_highlighted;
1544                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1545 // Put it into a silence zone
1546                                 if( hi_plugin_set && hi_plugin_set->last &&
1547                                     hi_plugin_set->track == drag_plugin->track ) {
1548                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1549                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1550                                         hi_track = drag_plugin->track;
1551                                 }
1552                                 else if( hi_track ) {
1553 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1554                                         track_dimensions(hi_track, x, y, w, h);
1555                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1556                                 }
1557
1558                                 if( plugin_position < 0 ) break;
1559
1560 // Calculate length of plugin based on data type of track and units
1561                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1562                                                 mwindow->edl->local_session->zoom_sample;
1563                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1564                                                 mwindow->edl->local_session->view_start[pane->number];
1565                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1566
1567                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1568                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1569                                         draw_box = 1;
1570                                 }
1571                         }
1572                         break;
1573
1574                 case DRAG_PLUGINKEY:
1575                         if(mwindow->session->plugin_highlighted &&
1576                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1577                         {
1578 // Just highlight the plugin
1579                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1580
1581                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1582                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1583                                 {
1584                                         draw_box = 1;
1585                                 }
1586                         }
1587                         break;
1588
1589         }
1590
1591
1592         if(draw_box)
1593         {
1594                 draw_highlight_rectangle(x, y, w, h);
1595         }
1596 }
1597
1598 void TrackCanvas::draw_plugins()
1599 {
1600         char string[BCTEXTLEN];
1601         int current_on = 0;
1602         int current_show = 0;
1603         int current_preset = 0;
1604
1605         for(int i = 0; i < plugin_on_toggles.total; i++)
1606                 plugin_on_toggles.values[i]->in_use = 0;
1607         for(int i = 0; i < plugin_show_toggles.total; i++)
1608                 plugin_show_toggles.values[i]->in_use = 0;
1609         for(int i = 0; i < preset_edit_buttons.total; i++)
1610                 plugin_show_toggles.values[i]->in_use = 0;
1611
1612
1613         for(Track *track = mwindow->edl->tracks->first;
1614                 track;
1615                 track = track->next)
1616         {
1617                 if(track->expand_view)
1618                 {
1619                         for(int i = 0; i < track->plugin_set.total; i++)
1620                         {
1621                                 PluginSet *pluginset = track->plugin_set.values[i];
1622
1623                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1624                                 {
1625                                         int64_t total_x, y, total_w, h;
1626                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1627
1628                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1629                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1630                                                 plugin->plugin_type != PLUGIN_NONE)
1631                                         {
1632                                                 int x = total_x, w = total_w, left_margin = 5;
1633                                                 int right_margin = 5;
1634                                                 if(x < 0)
1635                                                 {
1636                                                         w -= -x;
1637                                                         x = 0;
1638                                                 }
1639                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1640
1641                                                 draw_3segmenth(x,
1642                                                         y,
1643                                                         w,
1644                                                         total_x,
1645                                                         total_w,
1646                                                         mwindow->theme->get_image("plugin_bg_data"),
1647                                                         0);
1648                                                 set_color(mwindow->theme->title_color);
1649                                                 set_font(mwindow->theme->title_font);
1650                                                 plugin->calculate_title(string, 0);
1651
1652 // Truncate string to int64_test visible in background
1653                                                 int len = strlen(string), j;
1654                                                 for(j = len; j >= 0; j--)
1655                                                 {
1656                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1657                                                         {
1658                                                                 string[j] = 0;
1659                                                         }
1660                                                         else
1661                                                                 break;
1662                                                 }
1663
1664 // Justify the text on the left boundary of the edit if it is visible.
1665 // Otherwise justify it on the left side of the screen.
1666                                                 int64_t text_x = total_x + left_margin;
1667                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1668                                                 text_x = MAX(left_margin, text_x);
1669                                                 draw_text(text_x,
1670                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1671                                                         string,
1672                                                         strlen(string),
1673                                                         0);
1674                                                 int64_t min_x = total_x + text_w;
1675
1676
1677 // Update plugin toggles
1678                                                 int toggle_x = total_x + total_w;
1679                                                 int toggle_y = y;
1680                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1681
1682 // On toggle
1683                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1684                                                 if(toggle_x > min_x)
1685                                                 {
1686                                                         if(current_on >= plugin_on_toggles.total)
1687                                                         {
1688                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1689                                                                 add_subwindow(plugin_on);
1690                                                                 plugin_on_toggles.append(plugin_on);
1691                                                         }
1692                                                         else
1693                                                         {
1694                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1695                                                         }
1696                                                         current_on++;
1697                                                 }
1698
1699 // Toggles for standalone plugins only
1700                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1701                                                 {
1702 // Show
1703                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1704                                                         if(toggle_x > min_x)
1705                                                         {
1706                                                                 if(current_show >= plugin_show_toggles.total)
1707                                                                 {
1708                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1709                                                                         add_subwindow(plugin_show);
1710                                                                         plugin_show_toggles.append(plugin_show);
1711                                                                 }
1712                                                                 else
1713                                                                 {
1714                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1715                                                                 }
1716                                                                 current_show++;
1717                                                         }
1718                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + 10;
1719                                                         if(toggle_x > min_x)
1720                                                         {
1721                                                                 if(current_preset >= preset_edit_buttons.total)
1722                                                                 {
1723                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1724                                                                         add_subwindow(preset_edit);
1725                                                                         preset_edit_buttons.append(preset_edit);
1726                                                                 }
1727                                                                 else
1728                                                                 {
1729                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1730                                                                 }
1731                                                                 current_preset++;
1732                                                         }
1733                                                 }
1734                                         }
1735                                 }
1736                         }
1737                 }
1738         }
1739
1740 // Remove unused toggles
1741
1742         while(current_preset < preset_edit_buttons.total)
1743         {
1744                 preset_edit_buttons.remove_object_number(current_preset);
1745         }
1746         while(current_show < plugin_show_toggles.total)
1747         {
1748                 plugin_show_toggles.remove_object_number(current_show);
1749         }
1750
1751         while(current_on < plugin_on_toggles.total)
1752         {
1753                 plugin_on_toggles.remove_object_number(current_on);
1754         }
1755 }
1756
1757 void TrackCanvas::refresh_plugintoggles()
1758 {
1759         for(int i = 0; i < plugin_on_toggles.total; i++)
1760         {
1761                 PluginOn *on = plugin_on_toggles.values[i];
1762                 on->reposition_window(on->get_x(), on->get_y());
1763         }
1764         for(int i = 0; i < plugin_show_toggles.total; i++)
1765         {
1766                 PluginShow *show = plugin_show_toggles.values[i];
1767                 show->reposition_window(show->get_x(), show->get_y());
1768         }
1769         for(int i = 0; i < preset_edit_buttons.total; i++)
1770         {
1771                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1772                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1773         }
1774 }
1775
1776 void TrackCanvas::draw_hard_edges()
1777 {
1778         int64_t x, y, w, h;
1779
1780         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1781                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1782                         if( !edit->hard_left && !edit->hard_right ) continue;
1783                         edit_dimensions(edit, x, y, w, h);
1784                         set_color(GREEN);
1785                         set_opaque();
1786                         int y1 = y;
1787                         if( track->show_titles() )
1788                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1789                         if( track->show_assets() )
1790                                 y1 += resource_h();
1791                         if( y1 == y )
1792                                 y1 += mwindow->theme->title_h;
1793                         if( edit->hard_left ) {
1794                                 ArrayList<int> xpt, ypt;
1795                                 xpt.append(x);              ypt.append(y1);
1796                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1797                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1798                                 fill_polygon(&xpt, &ypt);
1799                         }
1800                         if( edit->hard_right ) {
1801                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1802                                 xpt.append(x1);            ypt.append(y1);
1803                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1804                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1805                                 fill_polygon(&xpt, &ypt);
1806                         }
1807                 }
1808         }
1809 }
1810
1811 void TrackCanvas::draw_inout_points()
1812 {
1813 }
1814
1815
1816 void TrackCanvas::draw_drag_handle()
1817 {
1818         if(mwindow->session->current_operation == DRAG_EDITHANDLE2 ||
1819                 mwindow->session->current_operation == DRAG_PLUGINHANDLE2)
1820         {
1821 //printf("TrackCanvas::draw_drag_handle 1 %ld %ld\n", mwindow->session->drag_sample, mwindow->edl->local_session->view_start);
1822                 int64_t pixel1 = Units::round(mwindow->session->drag_position *
1823                         mwindow->edl->session->sample_rate /
1824                         mwindow->edl->local_session->zoom_sample -
1825                         mwindow->edl->local_session->view_start[pane->number]);
1826 //printf("TrackCanvas::draw_drag_handle 2 %d %jd\n", pane->number, pixel1);
1827                 set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1828                 set_inverse();
1829 //printf("TrackCanvas::draw_drag_handle 3\n");
1830                 draw_line(pixel1, 0, pixel1, get_h());
1831                 set_opaque();
1832 //printf("TrackCanvas::draw_drag_handle 4\n");
1833         }
1834 }
1835
1836
1837 void TrackCanvas::draw_transitions()
1838 {
1839         int64_t x, y, w, h;
1840
1841         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1842                 if( !track->show_transitions() ) continue;
1843
1844                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1845                         if(!edit->transition) continue;
1846                         edit_dimensions(edit, x, y, w, h);
1847                         int strip_x = x;
1848                         get_transition_coords(edit, x, y, w, h);
1849                         int strip_h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1850                         int track_y = edit->edits->track->y_pixel;
1851                         int strip_y = y - strip_h;
1852                         if( strip_y < track_y ) strip_y = track_y;
1853
1854                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
1855                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
1856                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1857                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1858                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
1859                                                 track->data_type);
1860                                 if( !server ) continue;
1861                                 VFrame *picon = server->get_picon();
1862                                 if( !picon ) continue;
1863                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
1864                                 int track_h = edit->track->vertical_span(mwindow->theme);
1865                                 if( picon_h > track_h ) picon_h = track_h;
1866                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
1867                         }
1868                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
1869                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
1870                                 int x = strip_x, w = strip_w;
1871                                 if( x < 0 ) {  w -= -x;  x = 0; }
1872                                 if( w + x > get_w() ) w -= (w + x) - get_w();
1873
1874                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
1875                                         mwindow->theme->get_image("plugin_bg_data"), 0);
1876                         }
1877                 }
1878         }
1879 }
1880
1881 void TrackCanvas::draw_loop_points()
1882 {
1883 //printf("TrackCanvas::draw_loop_points 1\n");
1884         if(mwindow->edl->local_session->loop_playback)
1885         {
1886 //printf("TrackCanvas::draw_loop_points 2\n");
1887                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
1888                         mwindow->edl->session->sample_rate /
1889                         mwindow->edl->local_session->zoom_sample -
1890                         mwindow->edl->local_session->view_start[pane->number]);
1891 //printf("TrackCanvas::draw_loop_points 3\n");
1892
1893                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1894                 {
1895                         set_color(GREEN);
1896                         draw_line(x, 0, x, get_h());
1897                 }
1898 //printf("TrackCanvas::draw_loop_points 4\n");
1899
1900                 x = Units::round(mwindow->edl->local_session->loop_end *
1901                         mwindow->edl->session->sample_rate /
1902                         mwindow->edl->local_session->zoom_sample -
1903                         mwindow->edl->local_session->view_start[pane->number]);
1904 //printf("TrackCanvas::draw_loop_points 5\n");
1905
1906                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1907                 {
1908                         set_color(GREEN);
1909                         draw_line(x, 0, x, get_h());
1910                 }
1911 //printf("TrackCanvas::draw_loop_points 6\n");
1912         }
1913 //printf("TrackCanvas::draw_loop_points 7\n");
1914 }
1915
1916 void TrackCanvas::draw_brender_range()
1917 {
1918         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
1919         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
1920         if( mwindow->edl->session->brender_end > 0 )
1921         {
1922                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
1923                         mwindow->edl->session->sample_rate /
1924                         mwindow->edl->local_session->zoom_sample -
1925                         mwindow->edl->local_session->view_start[pane->number]);
1926                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
1927                 {
1928                         set_color(RED);
1929                         draw_line(x1, 0, x1, get_h());
1930                 }
1931                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
1932                         mwindow->edl->session->sample_rate /
1933                         mwindow->edl->local_session->zoom_sample -
1934                         mwindow->edl->local_session->view_start[pane->number]);
1935
1936                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
1937                 {
1938                         set_color(RED);
1939                         draw_line(x2, 0, x2, get_h());
1940                 }
1941         }
1942 }
1943
1944 // The operations which correspond to each automation type
1945 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
1946 {
1947         DRAG_MUTE,
1948         DRAG_CAMERA_X,
1949         DRAG_CAMERA_Y,
1950         DRAG_CAMERA_Z,
1951         DRAG_PROJECTOR_X,
1952         DRAG_PROJECTOR_Y,
1953         DRAG_PROJECTOR_Z,
1954         DRAG_FADE,
1955         DRAG_PAN,
1956         DRAG_MODE,
1957         DRAG_MASK,
1958         DRAG_SPEED
1959 };
1960
1961 // The buttonpress operations, so nothing changes unless the mouse moves
1962 // a certain amount.  This allows the keyframe to be used to position the
1963 // insertion point without moving itself.
1964 static int pre_auto_operations[AUTOMATION_TOTAL] =
1965 {
1966         DRAG_MUTE,
1967         DRAG_CAMERA_X,
1968         DRAG_CAMERA_Y,
1969         DRAG_CAMERA_Z,
1970         DRAG_PROJECTOR_X,
1971         DRAG_PROJECTOR_Y,
1972         DRAG_PROJECTOR_Z,
1973         DRAG_FADE,
1974         DRAG_PAN_PRE,
1975         DRAG_MODE_PRE,
1976         DRAG_MASK_PRE,
1977         DRAG_SPEED
1978 };
1979
1980
1981 int TrackCanvas::do_keyframes(int cursor_x,
1982         int cursor_y,
1983         int draw,
1984         int buttonpress,
1985         int &new_cursor,
1986         int &update_cursor,
1987         int &rerender)
1988 {
1989 // Note: button 3 (right mouse button) is not eaten to allow
1990 // track context menu to appear
1991         int result = 0;
1992         EDLSession *session = mwindow->edl->session;
1993
1994
1995
1996         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
1997         {
1998                 0, 0, 0, 0, 0, 0, 0, 0,
1999                 pankeyframe_pixmap,
2000                 modekeyframe_pixmap,
2001                 maskkeyframe_pixmap,
2002         };
2003
2004
2005
2006         for(Track *track = mwindow->edl->tracks->first;
2007                 track && !result;
2008                 track = track->next) {
2009                 Auto *auto_keyframe = 0;
2010                 Automation *automation = track->automation;
2011
2012
2013 // Handle keyframes in reverse drawing order if a button press
2014                 int start = 0;
2015                 int end = AUTOMATION_TOTAL;
2016                 int step = 1;
2017                 if(buttonpress)
2018                 {
2019                         start = AUTOMATION_TOTAL - 1;
2020                         end = -1;
2021                         step = -1;
2022                 }
2023                 for(int i = start; i != end && !result; i += step)
2024                 {
2025 // Event not trapped and automation visible
2026                         Autos *autos = automation->autos[i];
2027                         if(!result && session->auto_conf->autos[i] && autos) {
2028                                 switch(i) {
2029                                 case AUTOMATION_MODE:
2030                                 case AUTOMATION_PAN:
2031                                 case AUTOMATION_MASK:
2032                                         result = do_autos(track, automation->autos[i],
2033                                                 cursor_x, cursor_y, draw,
2034                                                 buttonpress, auto_pixmaps[i],
2035                                                 auto_keyframe, rerender);
2036                                                 break;
2037
2038                                 default: {
2039                                         switch(autos->get_type()) {
2040                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2041                                                 Automation automation(0, track);
2042                                                 int grouptype = automation.autogrouptype(i, track);
2043                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2044                                                         mwindow->speed_before();
2045                                                 }
2046
2047                                                 if(draw) // Do dropshadow
2048                                                         result = do_float_autos(track, autos,
2049                                                                 cursor_x, cursor_y, draw,
2050                                                                 buttonpress, 1, 1, MDGREY,
2051                                                                 auto_keyframe, grouptype);
2052                                                 result = do_float_autos(track, autos,
2053                                                         cursor_x, cursor_y, draw, buttonpress,
2054                                                         0, 0, GWindowGUI::auto_colors[i],
2055                                                         auto_keyframe, grouptype);
2056
2057                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2058                                                         mwindow->speed_after(-1);
2059                                                 int current_grouptype = mwindow->edl->local_session->zoombar_showautotype;
2060                                                 if( result && buttonpress && grouptype != current_grouptype ) {
2061                                                         mwindow->edl->local_session->zoombar_showautotype = grouptype;
2062                                                         mwindow->gui->zoombar->update_autozoom();
2063                                                 }
2064                                                 break; }
2065
2066                                         case Autos::AUTOMATION_TYPE_INT: {
2067                                                 if(draw) // Do dropshadow
2068                                                         result = do_int_autos(track, autos,
2069                                                                 cursor_x, cursor_y, draw,
2070                                                                 buttonpress, 1, 1, MDGREY,
2071                                                                 auto_keyframe);
2072                                                 result = do_int_autos(track, autos,
2073                                                         cursor_x, cursor_y, draw, buttonpress,
2074                                                         0, 0, GWindowGUI::auto_colors[i],
2075                                                         auto_keyframe);
2076                                                 break; }
2077                                         }
2078                                         break; }
2079                                 }
2080
2081                                 if(result)
2082                                 {
2083                                         if(mwindow->session->current_operation == auto_operations[i])
2084                                                 rerender = 1;
2085
2086 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2087 // __LINE__,
2088 // mwindow->session->current_operation,
2089 // auto_operations[i]);
2090                                         if(buttonpress)
2091                                         {
2092                                                 if (buttonpress != 3)
2093                                                 {
2094                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2095                                                                 synchronize_autos(0,
2096                                                                         track,
2097                                                                         (FloatAuto*)mwindow->session->drag_auto,
2098                                                                         1);
2099                                                         mwindow->session->current_operation = pre_auto_operations[i];
2100                                                         update_drag_caption();
2101                                                         rerender = 1;
2102                                                 }
2103                                                 else if( auto_keyframe )
2104                                                 {
2105                                                         gui->keyframe_menu->update(automation,
2106                                                                 autos,
2107                                                                 auto_keyframe);
2108                                                         gui->keyframe_menu->activate_menu();
2109                                                         rerender = 1; // the position changes
2110                                                 }
2111                                                 else if( autos )
2112                                                 {
2113                                                         gui->keyframe_hide->update(autos);
2114                                                         gui->keyframe_hide->activate_menu();
2115                                                         rerender = 1; // the position changes
2116                                                 }
2117                                                 if(buttonpress == 1 && ctrl_down() &&
2118                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2119                                                         rerender = 1; // special case: curve mode changed
2120                                         }
2121                                 }
2122                         }
2123                 }
2124
2125                 if(!result && session->auto_conf->plugins) {
2126                         Plugin *plugin;
2127                         KeyFrame *keyframe;
2128                         result = do_plugin_autos(track, cursor_x, cursor_y,
2129                                 draw, buttonpress, plugin, keyframe);
2130                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2131                                 rerender = 1;
2132                         }
2133                         if(result && (buttonpress == 1)) {
2134                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2135                                 update_drag_caption();
2136                                 rerender = 1;
2137                         }
2138                         else if (result && (buttonpress == 3)) {
2139                                 gui->keyframe_menu->update(plugin, keyframe);
2140                                 gui->keyframe_menu->activate_menu();
2141                                 rerender = 1; // the position changes
2142                         }
2143                 }
2144         }
2145
2146 // Final pass to trap event
2147         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2148                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2149                         mwindow->session->current_operation == auto_operations[i]) {
2150                         result = 1;
2151                         break;
2152                 }
2153         }
2154
2155         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2156                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2157                 result = 1;
2158         }
2159
2160         update_cursor = 1;
2161         if(result) {
2162                 new_cursor = UPRIGHT_ARROW_CURSOR;
2163         }
2164
2165
2166         return result;
2167 }
2168
2169 void TrackCanvas::draw_keyframe_reticle()
2170 {
2171         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2172         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2173
2174         int current_op = mwindow->session->current_operation, dragging = 0;
2175         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2176                 if( current_op == auto_operations[i] ) dragging = 1;
2177
2178         if( keyframe_hairline == HAIRLINE_DRAGGING && dragging ) {
2179                 if( mwindow->session->drag_auto && get_buttonpress() == 1 ) {
2180                         draw_hairline(mwindow->session->drag_auto, RED);
2181                         return;
2182                 }
2183         }
2184
2185         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == 2 &&
2186             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2187                 for( Track *track = mwindow->edl->tracks->first; track;
2188                      track=track->next ) {
2189                         Automation *automation = track->automation;
2190                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2191                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2192                                 // automation visible
2193                                 Autos *autos = automation->autos[i];
2194                                 if( !autos ) continue;
2195                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2196                                      auto_keyframe = auto_keyframe->next ) {
2197                                         draw_hairline(auto_keyframe, BLUE);
2198                                 }
2199                         }
2200
2201                         if( dragging && mwindow->session->drag_auto ) {
2202                                 draw_hairline(mwindow->session->drag_auto, RED);
2203                         }
2204                 }
2205         }
2206 }
2207
2208 void TrackCanvas::draw_auto(Auto *current,
2209         int x,
2210         int y,
2211         int center_pixel,
2212         int zoom_track)
2213 {
2214         int x1, y1, x2, y2;
2215
2216         x1 = x - HANDLE_W / 2;
2217         x2 = x + HANDLE_W / 2;
2218         y1 = center_pixel + y - HANDLE_W / 2;
2219         y2 = center_pixel + y + HANDLE_W / 2;
2220
2221         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2222         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2223
2224         draw_box(x1, y1, x2 - x1, y2 - y1);
2225 }
2226
2227
2228 // This draws lines for bezier in & out controls
2229 void TrackCanvas::draw_cropped_line(int x1,
2230         int y1,
2231         int x2,
2232         int y2,
2233         int min_y,
2234         int max_y)
2235 {
2236
2237
2238 // Don't care about x since it is clipped by the window.
2239 // Put y coords in ascending order
2240         if(y2 < y1) {
2241                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2242                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2243         }
2244
2245
2246
2247         double slope = (double)(x2 - x1) / (y2 - y1);
2248 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2249         if(y1 < min_y) {
2250                 x1 = (int)(x1 + (min_y - y1) * slope);
2251                 y1 = min_y;
2252         }
2253         else if(y1 >= max_y) {
2254                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2255                 y1 = max_y - 1;
2256         }
2257
2258         if(y2 >= max_y) {
2259                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2260                 y2 = max_y - 1;
2261         }
2262         else if(y2 < min_y) {
2263                 x2 = (int)(x2 + (min_y - y2) * slope);
2264                 y1 = min_y;
2265         }
2266
2267
2268 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2269         if( y1 >= min_y && y1 < max_y &&
2270             y2 >= min_y && y2 < max_y )
2271                 draw_line(x1, y1, x2, y2);
2272 }
2273
2274
2275 void TrackCanvas::draw_floatauto(FloatAuto *current,
2276         int x,
2277         int y,
2278         int in_x,
2279         int in_y,
2280         int out_x,
2281         int out_y,
2282         int center_pixel,
2283         int zoom_track,
2284         int color)
2285 {
2286         int x1 = x - HANDLE_W / 2; // Center
2287         int x2 = x + HANDLE_W / 2;
2288         int y1 = center_pixel + y - HANDLE_H / 2;
2289         int y2 = center_pixel + y + HANDLE_H / 2;
2290         int ymin = center_pixel - zoom_track / 2;
2291         int ymax = center_pixel + zoom_track / 2;
2292         CLAMP(y1, ymin, ymax);
2293         CLAMP(y2, ymin, ymax);
2294
2295         if(y2 - 1 > y1)
2296         {
2297                 set_color(BLACK);
2298                 draw_box(x1 + 1, y1 + 1, x2 - x1, y2 - y1);
2299                 set_color(color);
2300                 draw_box(x1, y1, x2 - x1, y2 - y1);
2301         }
2302
2303 // show bezier control points (only) if this
2304 // floatauto doesn't adjust it's tangents automatically
2305         if(current->curve_mode != FloatAuto::FREE &&
2306            current->curve_mode != FloatAuto::TFREE)
2307                 return;
2308
2309         if(in_x != x)
2310                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2311         if(out_x != x)
2312                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2313 }
2314
2315 inline int quantize(float f) { return (int)floor(f + 0.5); }
2316
2317 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2318         int x, int y, int cp_x, int cp_y, int center_pixel,
2319         int zoom_track, int color)
2320 // draw the tangent and a handle for given bézier ctrl point
2321 {
2322         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2323
2324         float slope = (float)(cp_y - y)/(cp_x - x);
2325         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2326         if(slope != 0)
2327                 cp_x = x + quantize((cp_y - y) / slope);
2328
2329         y    += center_pixel;
2330         cp_y += center_pixel;
2331
2332         // drawing the tangent as a dashed line...
2333         int const dash = HANDLE_W;
2334         int const gap  = HANDLE_W / 2;
2335         float sx = 3 * (cp_x - x) / 4.;
2336         float ex = 0;
2337
2338         // q is the x displacement for a unit line of slope
2339         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2340
2341         float dist = 1/q * sx;
2342         if( dist > dash )
2343                 ex = sx - q * dash;
2344
2345         set_color(color);
2346         do {
2347                 float sy = slope * sx, ey = slope * ex;
2348                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2349                 sx = ex - q * gap;
2350                 ex = sx - q * dash;
2351         } while(q*ex > 0);
2352
2353         if(handle_visible)
2354         {
2355                 int r = HANDLE_W / 2;
2356                 int cp_x1 = cp_x - r;
2357                 int cp_y1 = cp_y - r;
2358                 set_color(BLACK);
2359                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2360                 set_color(color);
2361                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2362         }
2363 }
2364
2365
2366 int TrackCanvas::test_auto(Auto *current,
2367         int x, int y, int center_pixel, int zoom_track,
2368         int cursor_x, int cursor_y, int buttonpress)
2369 {
2370         int x1, y1, x2, y2;
2371         int result = 0;
2372
2373         x1 = x - HANDLE_W / 2;
2374         x2 = x + HANDLE_W / 2;
2375         y1 = center_pixel + y - HANDLE_H / 2;
2376         y2 = center_pixel + y + HANDLE_H / 2;
2377         int ymin = center_pixel - zoom_track / 2;
2378         int ymax = center_pixel + zoom_track / 2;
2379         CLAMP(y1, ymin, ymax);
2380         CLAMP(y2, ymin, ymax);
2381
2382         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2383         {
2384                 if(buttonpress && buttonpress != 3)
2385                 {
2386                         mwindow->session->drag_auto = current;
2387                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2388                         // Toggle Autos don't respond to vertical zoom, they always show up
2389                         // with "on" == 100% == line on top
2390                         mwindow->session->drag_start_position = current->position;
2391                         mwindow->session->drag_origin_x = cursor_x;
2392                         mwindow->session->drag_origin_y = cursor_y;
2393                 }
2394                 result = 1;
2395         }
2396
2397         if(buttonpress && buttonpress != 3 && result)
2398         {
2399 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2400                 mwindow->undo->update_undo_before();
2401         }
2402
2403         return result;
2404 }
2405
2406 // some Helpers for test_floatauto(..)
2407 // and for dragging the tangents/ctrl points
2408 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2409         float cursor_x, float cursor_y)
2410 {
2411 // Control point switched off?
2412         if( x0 == ctrl_x ) return 0.0;
2413         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2414         double x = cursor_x-x0, y = cursor_y-y0;
2415 // wrong side of ctrl handle
2416         if( x*x1 < 0 ) return 0.0;
2417 // outside handle radius
2418         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2419         double xx1 = x1*x1, yy1 = y1*y1;
2420         double xx = x*x, yy = y*y;
2421 // distance squared from cursor to cursor projected to line from ctrl to handle
2422 //   along a line perpendicular to line from ctrl to handle (closest approach)
2423 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2424         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2425         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2426 }
2427
2428
2429 inline
2430 float levered_position(float position, float ref_pos)
2431 {
2432         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2433                 return 0.0;
2434         return ref_pos / position;
2435 }
2436
2437
2438 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2439 // transforms automation value into current display coords,
2440 // dependant on current automation display range for the given kind of automation
2441 {
2442         if(!mwindow || !mwindow->edl) return 0;
2443         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2444         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2445         float automation_range = automation_max - automation_min;
2446         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2447                 return 0;
2448         return (auto_value - automation_min) / automation_range;
2449 }
2450
2451
2452
2453 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2454         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2455         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2456 {
2457         int result = 0;
2458
2459         int x1 = x - HANDLE_W / 2;
2460         int x2 = x + HANDLE_W / 2;
2461         int y1 = center_pixel + y - HANDLE_W / 2;
2462         int y2 = center_pixel + y + HANDLE_W / 2;
2463         int ymin = center_pixel - zoom_track / 2;
2464         int ymax = center_pixel + zoom_track / 2;
2465         CLAMP(y1, ymin, ymax);
2466         CLAMP(y2, ymin, ymax);
2467
2468         int in_x1 = in_x - HANDLE_W / 2;
2469         int in_x2 = in_x + HANDLE_W / 2;
2470         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2471         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2472         CLAMP(in_y1, ymin, ymax);
2473         CLAMP(in_y2, ymin, ymax);
2474
2475         int out_x1 = out_x - HANDLE_W / 2;
2476         int out_x2 = out_x + HANDLE_W / 2;
2477         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2478         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2479         CLAMP(out_y1, ymin, ymax);
2480         CLAMP(out_y2, ymin, ymax);
2481
2482
2483 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2484 // buttonpress could be the start of a drag operation
2485 #define INIT_DRAG(POS,VAL) \
2486                 mwindow->session->drag_auto = current;      \
2487                 mwindow->session->drag_origin_x = cursor_x;  \
2488                 mwindow->session->drag_origin_y = cursor_y;   \
2489                 mwindow->session->drag_start_position = (POS); \
2490                 mwindow->session->drag_start_percentage = (VAL);
2491
2492 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2493
2494
2495 // without modifier we are manipulating the automation node
2496 // with ALT it's about dragging only the value of the node
2497 // with SHIFT the value snaps to the value of neighbouring nodes
2498 // CTRL indicates we are rather manipulating the tangent(s) of the node
2499
2500         if(!ctrl_down())
2501         {
2502                 if( WITHIN(x1,x2,y1,y2))
2503                 {       // cursor hits node
2504                         result = 1;
2505
2506                         if(buttonpress && (buttonpress != 3))
2507                         {
2508                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2509                                 mwindow->session->drag_handle = 0;
2510                 }       }
2511         }
2512         else // ctrl_down()
2513         {
2514                 if( WITHIN(x1,x2,y1,y2))
2515                 {
2516                         result = 1;
2517                         if(buttonpress && (buttonpress != 3))
2518                         {
2519                                 // could be ctrl-click or ctrl-drag
2520                                 // click would cycle through tangent modes
2521                                 ((FloatAuto*)current)->toggle_curve_mode();
2522
2523                                 // drag will start dragging the tangent, if applicable
2524                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2525                                 mwindow->session->drag_handle = 0;
2526                         }
2527                 }
2528
2529                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2530
2531 // Test in control
2532                 if( in_x != x && current->position > 0 &&
2533                         (FloatAuto::FREE == current->curve_mode ||
2534                          FloatAuto::TFREE == current->curve_mode))
2535 // act on in control handle only if
2536 // tangent is significant and is editable (not automatically choosen)
2537                 {
2538                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2539  // either cursor in ctrl-point handle or cursor on tangent line
2540                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2541                                 result = 1;
2542                                 if(buttonpress && (buttonpress != 3)) {
2543                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2544 //                                      lever = 1.0;
2545                                         mwindow->session->drag_handle = 1;
2546                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2547                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2548                                                   value_to_percentage(new_invalue, autogrouptype))
2549                                 }
2550                         }
2551                 }
2552
2553 // Test out control
2554                 if(out_x != x &&
2555                         (FloatAuto::FREE == current->curve_mode ||
2556                          FloatAuto::TFREE == current->curve_mode))
2557 // act on out control only if tangent is significant and is editable
2558                 {
2559                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2560                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2561                                 result = 1;
2562                                 if(buttonpress && (buttonpress != 3)) {
2563                                         if(lever == 0.0) lever=1.0;
2564 //                                      lever = 1.0;
2565                                         mwindow->session->drag_handle = 2;
2566                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2567                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2568                                                   value_to_percentage(new_outvalue, autogrouptype))
2569                                 }
2570                         }
2571                 }
2572         } // end ctrl_down()
2573
2574 #undef WITHIN
2575 #undef INIT_DRAG
2576
2577 // if(buttonpress)
2578 // 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",
2579 // mwindow->session->drag_handle,
2580 // ctrl_down(),
2581 // cursor_x,
2582 // cursor_y,
2583 // x1, x2, y1, y2);
2584         if(buttonpress && (buttonpress != 3) && result)
2585         {
2586                 mwindow->undo->update_undo_before();
2587         }
2588
2589         return result;
2590 }
2591
2592
2593 // Get the float value & y for position x on the canvas
2594 #define X_TO_FLOATLINE(x) \
2595         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2596         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2597 /* Call by reference fails for some reason here */ \
2598         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2599         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2600         double position = unit_start + x * zoom_units; \
2601         double value = 0; \
2602         if(position2 > position1) \
2603         { \
2604                 value = value1 + \
2605                         (value2 - value1) * \
2606                         (position - position1) / \
2607                         (position2 - position1); \
2608         } \
2609         else \
2610         { \
2611                 value = value1; \
2612         } \
2613         AUTOMATIONCLAMPS(value, autogrouptype); \
2614         int y = center_pixel + \
2615                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2616
2617
2618 void TrackCanvas::draw_floatline(int center_pixel,
2619         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2620         double unit_start, double zoom_units, double yscale,
2621         int x1, int y1, int x2, int y2,
2622         int color, int autogrouptype)
2623 {
2624 // Solve bezier equation for either every pixel or a certain large number of
2625 // points.
2626
2627 // Not using slope intercept
2628         x1 = MAX(0, x1);
2629         int prev_y = y1 + center_pixel;
2630
2631
2632 // Call by reference fails for some reason here
2633         FloatAuto *previous1 = previous, *next1 = next;
2634         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2635         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2636         float automation_range = automation_max - automation_min;
2637
2638         for(int x = x1; x < x2; x++)
2639         {
2640 // Interpolate value between frames
2641                 X_TO_FLOATLINE(x)
2642
2643                 if(/* x > x1 && */
2644                         y >= center_pixel - yscale / 2 &&
2645                         y < center_pixel + yscale / 2 - 1)
2646                 {
2647 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2648 // y,
2649 // (int)(center_pixel - yscale / 2),
2650 // (int)(center_pixel + yscale / 2 - 1));
2651
2652 //printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
2653                         draw_line(x - 1, prev_y  , x, y   );
2654                 }
2655                 prev_y = y;
2656         }
2657 }
2658
2659
2660
2661
2662
2663 int TrackCanvas::test_floatline(int center_pixel,
2664                 FloatAutos *autos,
2665                 double unit_start,
2666                 double zoom_units,
2667                 double yscale,
2668                 int x1,
2669                 int x2,
2670                 int cursor_x,
2671                 int cursor_y,
2672                 int buttonpress,
2673                 int autogrouptype)
2674 {
2675         int result = 0;
2676
2677
2678         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2679         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2680         float automation_range = automation_max - automation_min;
2681         FloatAuto *previous1 = 0, *next1 = 0;
2682         X_TO_FLOATLINE(cursor_x);
2683
2684         if(cursor_x >= x1 &&
2685                 cursor_x < x2 &&
2686                 cursor_y >= y - HANDLE_W / 2 &&
2687                 cursor_y < y + HANDLE_W / 2 &&
2688                 !ctrl_down())
2689         {
2690                 result = 1;
2691
2692 // Menu
2693                 if(buttonpress == 3)
2694                 {
2695                 }
2696                 else
2697 // Create keyframe
2698                 if(buttonpress)
2699                 {
2700                         Auto *current;
2701                         mwindow->undo->update_undo_before();
2702                         double position = autos->track->from_units(position1);
2703                         position = mwindow->edl->align_to_frame(position, 0);
2704                         int64_t new_position = autos->track->to_units(position,0);
2705                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2706                         ((FloatAuto*)current)->set_value(value);
2707                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2708                         mwindow->session->drag_start_position = current->position;
2709                         mwindow->session->drag_origin_x = cursor_x;
2710                         mwindow->session->drag_origin_y = cursor_y;
2711                         mwindow->session->drag_handle = 0;
2712                 }
2713         }
2714
2715
2716         return result;
2717 }
2718
2719
2720 void TrackCanvas::synchronize_autos(float change,
2721                 Track *skip, FloatAuto *fauto, int fill_gangs)
2722 {
2723 // Handles the special case of modifying a fadeauto
2724 // when there are ganged faders on several tracks
2725 // (skip and fauto may be NULL if fill_gangs==-1)
2726
2727         if( fill_gangs > 0 && skip->gang ) {
2728                 double position = skip->from_units(fauto->position);
2729                 int autoidx = fauto->autos->autoidx;
2730
2731                 for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2732                         if( (current->data_type == skip->data_type || get_double_click()) &&
2733                             current->gang && current->record && current != skip ) {
2734                                 int64_t current_position = current->to_units(position, 1);
2735                                 FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2736                                 float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2737                                 float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2738                                 FloatAuto *previous = 0, *next = 0;
2739                                 FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(current_position);
2740                                 if( !keyframe ) {
2741 // create keyframe on neighbouring track at the point in time given by fauto
2742                                         float init_value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2743                                         float new_value = init_value + change;
2744                                         CLAMP(new_value, auto_min, auto_max);
2745                                         keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2746                                         keyframe->set_value(new_value);
2747                                 }
2748                                 else {
2749 // keyframe exists, just change it
2750                                         float new_value = keyframe->get_value() + change;
2751                                         CLAMP(new_value, auto_min, auto_max);
2752                                         keyframe->adjust_to_new_coordinates(current_position, new_value);
2753 // need to (re)set the position, as the existing node could be on a "equivalent" position (within half a frame)
2754                                 }
2755
2756                                 mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2757                         }
2758                 }
2759         }
2760         else if( !fill_gangs ) {
2761                 double position = skip->from_units(fauto->position);
2762 // Move the gangs
2763                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2764                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2765                         int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2766                         float new_value = keyframe->get_value() + change;
2767                         CLAMP(new_value,
2768                               mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2769                               mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2770                         keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2771                 }
2772
2773         }
2774         else {
2775 // remove the gangs
2776                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2777                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2778                         keyframe->autos->remove_nonsequential(
2779                                         keyframe);
2780                 }
2781                 mwindow->session->drag_auto_gang->remove_all();
2782         }
2783 }
2784
2785
2786 void TrackCanvas::draw_toggleline(int center_pixel,
2787         int x1,
2788         int y1,
2789         int x2,
2790         int y2)
2791 {
2792         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2793
2794         if(y2 != y1)
2795         {
2796                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2797         }
2798 }
2799
2800 int TrackCanvas::test_toggleline(Autos *autos,
2801         int center_pixel,
2802         int x1,
2803         int y1,
2804         int x2,
2805         int y2,
2806         int cursor_x,
2807         int cursor_y,
2808         int buttonpress)
2809 {
2810         int result = 0;
2811         if(cursor_x >= x1 && cursor_x < x2)
2812         {
2813                 int miny = center_pixel + y1 - HANDLE_W / 2;
2814                 int maxy = center_pixel + y1 + HANDLE_W / 2;
2815                 if(cursor_y >= miny && cursor_y < maxy)
2816                 {
2817                         result = 1;
2818
2819 // Menu
2820                         if(buttonpress == 3)
2821                         {
2822                         }
2823                         else
2824 // Insert keyframe
2825                         if(buttonpress)
2826                         {
2827                                 Auto *current;
2828                                 double position = (double)(cursor_x +
2829                                                 mwindow->edl->local_session->view_start[pane->number]) *
2830                                         mwindow->edl->local_session->zoom_sample /
2831                                         mwindow->edl->session->sample_rate;
2832                                 int64_t unit_position = autos->track->to_units(position, 0);
2833                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
2834
2835                                 mwindow->undo->update_undo_before();
2836
2837                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
2838                                 ((IntAuto*)current)->value = new_value;
2839                                 // Toggle Autos don't respond to vertical zoom, they always show up
2840                                 // with "on" == 100% == line on top
2841                                 mwindow->session->drag_start_percentage = (float)new_value;
2842                                 mwindow->session->drag_start_position = current->position;
2843                                 mwindow->session->drag_origin_x = cursor_x;
2844                                 mwindow->session->drag_origin_y = cursor_y;
2845                         }
2846                 }
2847         };
2848
2849         return result;
2850 }
2851
2852 void TrackCanvas::calculate_viewport(Track *track,
2853         double &view_start,   // Seconds
2854         double &unit_start,
2855         double &view_end,     // Seconds
2856         double &unit_end,
2857         double &yscale,
2858         int &center_pixel,
2859         double &zoom_sample,
2860         double &zoom_units)
2861 {
2862         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
2863                 mwindow->edl->local_session->zoom_sample /
2864                 mwindow->edl->session->sample_rate;
2865         unit_start = track->to_doubleunits(view_start);
2866         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
2867                 get_w()) *
2868                 mwindow->edl->local_session->zoom_sample /
2869                 mwindow->edl->session->sample_rate;
2870         unit_end = track->to_doubleunits(view_end);
2871         yscale = resource_h();
2872         center_pixel = track->y_pixel
2873                         - mwindow->edl->local_session->track_start[pane->number];
2874         if( track->show_assets() )
2875                 center_pixel += yscale / 2;
2876         if( track->show_titles() )
2877                 center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
2878         zoom_sample = mwindow->edl->local_session->zoom_sample;
2879
2880         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
2881 }
2882
2883 float TrackCanvas::percentage_to_value(float percentage,
2884         int is_toggle,
2885         Auto *reference,
2886         int autogrouptype)
2887 {
2888         float result;
2889         if(is_toggle)
2890         {
2891                 if(percentage > 0.5)
2892                         result = 1;
2893                 else
2894                         result = 0;
2895         }
2896         else
2897         {
2898                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2899                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2900                 float automation_range = automation_max - automation_min;
2901
2902                 result = percentage * automation_range + automation_min;
2903                 if(reference)
2904                 {
2905                         FloatAuto *ptr = (FloatAuto*)reference;
2906                         result -= ptr->get_value();
2907                 }
2908 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
2909         }
2910         return result;
2911 }
2912
2913
2914 void TrackCanvas::calculate_auto_position(double *x, double *y,
2915         double *in_x, double *in_y, double *out_x, double *out_y,
2916         Auto *current, double unit_start, double zoom_units, double yscale,
2917         int autogrouptype)
2918 {
2919         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2920         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2921         float automation_range = automation_max - automation_min;
2922         FloatAuto *ptr = (FloatAuto*)current;
2923         *x = (double)(ptr->position - unit_start) / zoom_units;
2924         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
2925
2926         if(in_x) {
2927 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
2928                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
2929         }
2930
2931         if(in_y) {
2932                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
2933                                 automation_min) / automation_range - 0.5) * -yscale;
2934         }
2935
2936         if(out_x) {
2937 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
2938                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
2939         }
2940
2941         if(out_y) {
2942                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
2943                                  automation_min) / automation_range - 0.5) * -yscale;
2944         }
2945 }
2946
2947
2948 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
2949                 int draw, int buttonpress, int x_offset, int y_offset, int color,
2950                 Auto* &auto_instance, int autogrouptype)
2951 {
2952         int result = 0;
2953         int center_pixel, draw_auto;
2954         double view_start, unit_start;
2955         double view_end, unit_end, yscale;
2956         double zoom_sample, zoom_units;
2957         double in_x2, in_y2, out_x2, out_y2;
2958         double slope;
2959         //int skip = 0;
2960
2961         auto_instance = 0;
2962
2963         if(draw) set_color(color);
2964
2965         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
2966                         yscale, center_pixel, zoom_sample, zoom_units);
2967
2968 // Get first auto before start
2969         Auto *current = 0, *previous = 0;
2970
2971         for( current = autos->last;
2972                 current && current->position >= unit_start;
2973                 current = PREVIOUS ) ;
2974
2975         Auto *first_auto = current ? current :
2976                  autos->first ? autos->first : autos->default_auto;
2977
2978         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
2979         if( first_auto ) {
2980                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
2981                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
2982         }
2983         if( current )
2984                 current = NEXT;
2985         else {
2986                 current = autos->first;
2987                 ax = 0;
2988         }
2989
2990         do {
2991                 //skip = 0;
2992                 draw_auto = 1;
2993
2994                 if(current) {
2995                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
2996                                 current, unit_start, zoom_units, yscale, autogrouptype);
2997                 }
2998                 else {
2999                         ax2 = get_w();
3000                         ay2 = ay;
3001                         //skip = 1;
3002                 }
3003
3004                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3005
3006                 if(ax2 > get_w()) {
3007                         draw_auto = 0;
3008                         ax2 = get_w();
3009                         ay2 = ay + slope * (get_w() - ax);
3010                 }
3011
3012                 if(ax < 0) {
3013                         ay = ay + slope * (0 - ax);
3014                         ax = 0;
3015                 }
3016
3017 // Draw or test handle
3018                 if( current && !result && current != autos->default_auto ) {
3019                         if( !draw && track->record ) {
3020                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
3021                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
3022                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3023                                         buttonpress, autogrouptype);
3024                                 if( result )
3025                                         auto_instance = current;
3026                         }
3027                         if( draw && draw_auto ) {
3028                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
3029                                         (int)in_x2 + x_offset, (int)in_y2,
3030                                         (int)out_x2 + x_offset, (int)out_y2,
3031                                         (int)center_pixel + y_offset, (int)yscale, color);
3032                         }
3033                 }
3034
3035 // Draw or test joining line
3036                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
3037                         result = test_floatline(center_pixel,
3038                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3039 // Exclude auto coverage from the end of the line.  The auto overlaps
3040                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3041                                 buttonpress, autogrouptype);
3042                 }
3043                 if( draw )
3044                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3045                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3046                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3047                                 color, autogrouptype);
3048
3049                 if( current ) {
3050                         previous = current;
3051                         current = NEXT;
3052                 }
3053
3054                 ax = ax2;  ay = ay2;
3055         } while( current && current->position <= unit_end && !result );
3056
3057         if( ax < get_w() && !result ) {
3058                 ax2 = get_w();  ay2 = ay;
3059                 if(!draw && track->record /* && buttonpress != 3 */ ) {
3060                         result = test_floatline(center_pixel,
3061                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3062                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3063                                 buttonpress, autogrouptype);
3064                 }
3065                 if( draw )
3066                         draw_floatline(center_pixel,
3067                                 (FloatAuto*)previous, (FloatAuto*)current,
3068                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3069                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3070                                 color, autogrouptype);
3071         }
3072
3073         return result;
3074 }
3075
3076
3077 int TrackCanvas::do_int_autos(Track *track,
3078                 Autos *autos,
3079                 int cursor_x,
3080                 int cursor_y,
3081                 int draw,
3082                 int buttonpress,
3083                 int x_offset,
3084                 int y_offset,
3085                 int color,
3086                 Auto *&auto_instance)
3087 {
3088         int result = 0;
3089         double view_start;
3090         double unit_start;
3091         double view_end;
3092         double unit_end;
3093         double yscale;
3094         int center_pixel;
3095         double zoom_sample;
3096         double zoom_units;
3097         double ax, ay, ax2, ay2;
3098
3099         auto_instance = 0;
3100
3101         if(draw) set_color(color);
3102
3103         calculate_viewport(track,
3104                 view_start,
3105                 unit_start,
3106                 view_end,
3107                 unit_end,
3108                 yscale,
3109                 center_pixel,
3110                 zoom_sample,
3111                 zoom_units);
3112
3113
3114         double high = -yscale * 0.8 / 2;
3115         double low = yscale * 0.8 / 2;
3116
3117 // Get first auto before start
3118         Auto *current;
3119         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3120                 ;
3121
3122         if(current)
3123         {
3124                 ax = 0;
3125                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3126                 current = NEXT;
3127         }
3128         else
3129         {
3130                 current = autos->first ? autos->first : autos->default_auto;
3131                 if(current)
3132                 {
3133                         ax = 0;
3134                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3135                 }
3136                 else
3137                 {
3138                         ax = 0;
3139                         ay = yscale;
3140                 }
3141         }
3142
3143         do
3144         {
3145                 if(current)
3146                 {
3147                         ax2 = (double)(current->position - unit_start) / zoom_units;
3148                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3149                 }
3150                 else
3151                 {
3152                         ax2 = get_w();
3153                         ay2 = ay;
3154                 }
3155
3156                 if(ax2 > get_w()) ax2 = get_w();
3157
3158                 if(current && !result)
3159                 {
3160                         if(current != autos->default_auto)
3161                         {
3162                                 if(!draw)
3163                                 {
3164                                         if(track->record)
3165                                         {
3166                                                 result = test_auto(current,
3167                                                         (int)ax2,
3168                                                         (int)ay2,
3169                                                         (int)center_pixel,
3170                                                         (int)yscale,
3171                                                         cursor_x,
3172                                                         cursor_y,
3173                                                         buttonpress);
3174                                                 if (result)
3175                                                         auto_instance = current;
3176                                         }
3177                                 }
3178                                 else
3179                                         draw_auto(current,
3180                                                 (int)ax2 + x_offset,
3181                                                 (int)ay2 + y_offset,
3182                                                 (int)center_pixel,
3183                                                 (int)yscale);
3184                         }
3185
3186                         current = NEXT;
3187                 }
3188
3189                 if(!draw)
3190                 {
3191                         if(!result)
3192                         {
3193                                 if(track->record /* && buttonpress != 3 */)
3194                                 {
3195                                         result = test_toggleline(autos,
3196                                                 center_pixel,
3197                                                 (int)ax,
3198                                                 (int)ay,
3199                                                 (int)ax2,
3200                                                 (int)ay2,
3201                                                 cursor_x,
3202                                                 cursor_y,
3203                                                 buttonpress);
3204                                 }
3205                         }
3206                 }
3207                 else
3208                         draw_toggleline(center_pixel + y_offset,
3209                                 (int)ax,
3210                                 (int)ay,
3211                                 (int)ax2,
3212                                 (int)ay2);
3213
3214                 ax = ax2;
3215                 ay = ay2;
3216         }while(current && current->position <= unit_end && !result);
3217
3218         if(ax < get_w() && !result)
3219         {
3220                 ax2 = get_w();
3221                 ay2 = ay;
3222                 if(!draw)
3223                 {
3224                         if(track->record /* && buttonpress != 3 */)
3225                         {
3226                                 result = test_toggleline(autos,
3227                                         center_pixel,
3228                                         (int)ax,
3229                                         (int)ay,
3230                                         (int)ax2,
3231                                         (int)ay2,
3232                                         cursor_x,
3233                                         cursor_y,
3234                                         buttonpress);
3235                         }
3236                 }
3237                 else
3238                         draw_toggleline(center_pixel + y_offset,
3239                                 (int)ax,
3240                                 (int)ay,
3241                                 (int)ax2,
3242                                 (int)ay2);
3243         }
3244         return result;
3245 }
3246
3247 int TrackCanvas::do_autos(Track *track,
3248                 Autos *autos,
3249                 int cursor_x,
3250                 int cursor_y,
3251                 int draw,
3252                 int buttonpress,
3253                 BC_Pixmap *pixmap,
3254                 Auto * &auto_instance,
3255                 int &rerender)
3256 {
3257         int result = 0;
3258
3259         double view_start;
3260         double unit_start;
3261         double view_end;
3262         double unit_end;
3263         double yscale;
3264         int center_pixel;
3265         double zoom_sample;
3266         double zoom_units;
3267
3268         calculate_viewport(track,
3269                 view_start,
3270                 unit_start,
3271                 view_end,
3272                 unit_end,
3273                 yscale,
3274                 center_pixel,
3275                 zoom_sample,
3276                 zoom_units);
3277
3278         Auto *current;
3279         auto_instance = 0;
3280
3281         for(current = autos->first; current && !result; current = NEXT)
3282         {
3283                 if(current->position >= unit_start && current->position < unit_end)
3284                 {
3285                         int64_t x, y;
3286                         x = (int64_t)((double)(current->position - unit_start) /
3287                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3288                         y = center_pixel - pixmap->get_h() / 2;
3289
3290                         if(!draw)
3291                         {
3292                                 if(cursor_x >= x && cursor_y >= y &&
3293                                         cursor_x < x + pixmap->get_w() &&
3294                                         cursor_y < y + pixmap->get_h())
3295                                 {
3296                                         result = 1;
3297                                         auto_instance = current;
3298
3299                                         if(buttonpress && (buttonpress != 3))
3300                                         {
3301                                                 mwindow->session->drag_auto = current;
3302                                                 mwindow->session->drag_start_position = current->position;
3303                                                 mwindow->session->drag_origin_x = cursor_x;
3304                                                 mwindow->session->drag_origin_y = cursor_y;
3305
3306                                                 double position = autos->track->from_units(current->position);
3307                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3308                                                         mwindow->edl->local_session->get_selectionend(1)) /
3309                                                         2;
3310
3311                                                 if(!shift_down())
3312                                                 {
3313                                                         mwindow->edl->local_session->set_selectionstart(position);
3314                                                         mwindow->edl->local_session->set_selectionend(position);
3315                                                 }
3316                                                 else
3317                                                 if(position < center)
3318                                                 {
3319                                                         mwindow->edl->local_session->set_selectionstart(position);
3320                                                 }
3321                                                 else
3322                                                         mwindow->edl->local_session->set_selectionend(position);
3323
3324                                                 rerender = 1;
3325                                         }
3326                                 }
3327                         }
3328                         else
3329                                 draw_pixmap(pixmap, x, y);
3330                 }
3331         }
3332
3333
3334         return result;
3335 }
3336
3337 // so this means it is always >0 when keyframe is found
3338 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3339                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3340                 KeyFrame* &keyframe_instance)
3341 {
3342         int result = 0;
3343
3344         double view_start;
3345         double unit_start;
3346         double view_end;
3347         double unit_end;
3348         double yscale;
3349         int center_pixel;
3350         double zoom_sample;
3351         double zoom_units;
3352
3353         if(!track->expand_view) return 0;
3354
3355         calculate_viewport(track,
3356                 view_start,
3357                 unit_start,
3358                 view_end,
3359                 unit_end,
3360                 yscale,
3361                 center_pixel,
3362                 zoom_sample,
3363                 zoom_units);
3364
3365
3366
3367         for(int i = 0; i < track->plugin_set.total && !result; i++)
3368         {
3369                 PluginSet *plugin_set = track->plugin_set.values[i];
3370                 int center_pixel = track->y_pixel -
3371                         mwindow->edl->local_session->track_start[pane->number];
3372                 if( track->show_titles() )
3373                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3374                 if( track->show_assets() )
3375                         center_pixel += resource_h();
3376                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3377
3378                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3379                         plugin && !result;
3380                         plugin = (Plugin*)plugin->next)
3381                 {
3382                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3383                                 keyframe && !result;
3384                                 keyframe = (KeyFrame*)keyframe->next)
3385                         {
3386 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3387                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3388                                 {
3389                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3390                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3391
3392 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3393                                         if(!draw)
3394                                         {
3395                                                 if(cursor_x >= x && cursor_y >= y &&
3396                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3397                                                         cursor_y < y + keyframe_pixmap->get_h())
3398                                                 {
3399                                                         result = 1;
3400                                                         keyframe_plugin = plugin;
3401                                                         keyframe_instance = keyframe;
3402
3403                                                         if(buttonpress)
3404                                                         {
3405                                                                 mwindow->session->drag_auto = keyframe;
3406                                                                 mwindow->session->drag_start_position = keyframe->position;
3407                                                                 mwindow->session->drag_origin_x = cursor_x;
3408                                                                 mwindow->session->drag_origin_y = cursor_y;
3409
3410                                                                 double position = track->from_units(keyframe->position);
3411                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3412                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3413                                                                         2;
3414
3415                                                                 if(!shift_down())
3416                                                                 {
3417                                                                         mwindow->edl->local_session->set_selectionstart(position);
3418                                                                         mwindow->edl->local_session->set_selectionend(position);
3419                                                                 }
3420                                                                 else
3421                                                                 if(position < center)
3422                                                                 {
3423                                                                         mwindow->edl->local_session->set_selectionstart(position);
3424                                                                 }
3425                                                                 else
3426                                                                         mwindow->edl->local_session->set_selectionend(position);
3427                                                         }
3428                                                 }
3429                                         }
3430                                         else
3431                                                 draw_pixmap(keyframe_pixmap,
3432                                                         x,
3433                                                         y);
3434                                 }
3435                         }
3436                 }
3437         }
3438
3439
3440
3441 //      if(buttonpress && buttonpress != 3 && result)
3442 //      {
3443 //              mwindow->undo->update_undo_before();
3444 //      }
3445
3446         return result;
3447 }
3448
3449 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color)
3450 {
3451         Track *track = auto_keyframe->autos->track;
3452         int autogrouptype = auto_keyframe->autos->get_type();
3453
3454         int center_pixel;
3455         double view_start, unit_start;
3456         double view_end, unit_end, yscale;
3457         double zoom_sample, zoom_units;
3458
3459         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3460                         yscale, center_pixel, zoom_sample, zoom_units);
3461
3462         double ax = 0, ay = 0;
3463         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3464                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3465
3466         set_color(color);
3467         draw_line(ax, 0, ax, get_h());
3468         return 0;
3469 }
3470
3471 void TrackCanvas::draw_overlays()
3472 {
3473         int new_cursor, update_cursor, rerender;
3474
3475 // Move background pixmap to foreground pixmap
3476         draw_pixmap(background_pixmap,
3477                 0,
3478                 0,
3479                 get_w(),
3480                 get_h(),
3481                 0,
3482                 0);
3483
3484 // In/Out points
3485         draw_inout_points();
3486
3487 // Transitions
3488         draw_transitions();
3489
3490 // Plugins
3491         draw_plugins();
3492         draw_hard_edges();
3493
3494 // Loop points
3495         draw_loop_points();
3496         draw_brender_range();
3497
3498 // Highlighted areas
3499         draw_highlighting();
3500
3501 // Automation
3502         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3503
3504 // Selection cursor
3505         if(pane->cursor) pane->cursor->restore(1);
3506
3507 // Handle dragging
3508         draw_drag_handle();
3509
3510 // Playback cursor
3511         draw_playback_cursor();
3512
3513         draw_keyframe_reticle();
3514
3515         show_window(0);
3516 }
3517
3518 int TrackCanvas::activate()
3519 {
3520         if(!active)
3521         {
3522 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3523 //BC_Signals::dump_stack();
3524                 get_top_level()->deactivate();
3525                 active = 1;
3526                 set_active_subwindow(this);
3527                 pane->cursor->activate();
3528                 gui->focused_pane = pane->number;
3529         }
3530         return 0;
3531 }
3532
3533 int TrackCanvas::deactivate()
3534 {
3535         if(active)
3536         {
3537                 active = 0;
3538                 pane->cursor->deactivate();
3539         }
3540         return 0;
3541 }
3542
3543
3544 void TrackCanvas::update_drag_handle()
3545 {
3546         double new_position;
3547         int cursor_x = get_cursor_x();
3548
3549         new_position =
3550                 (double)(cursor_x +
3551                 mwindow->edl->local_session->view_start[pane->number]) *
3552                 mwindow->edl->local_session->zoom_sample /
3553                 mwindow->edl->session->sample_rate;
3554
3555         new_position =
3556                 mwindow->edl->align_to_frame(new_position, 0);
3557
3558         if( ctrl_down() && alt_down() ) {
3559 #define snapper(v) do { \
3560         double pos = (v); \
3561         if( pos < 0 ) break; \
3562         double dist = fabs(new_position - pos); \
3563         if( dist >= snap_min ) break; \
3564         snap_position = pos;  snap_min = dist; \
3565 } while(0)
3566                 double snap_position = new_position;
3567                 double snap_min = DBL_MAX;
3568                 if( mwindow->edl->local_session->inpoint_valid() )
3569                         snapper(mwindow->edl->local_session->get_inpoint());
3570                 if( mwindow->edl->local_session->outpoint_valid() )
3571                         snapper(mwindow->edl->local_session->get_outpoint());
3572                 snapper(mwindow->edl->prev_edit(new_position));
3573                 snapper(mwindow->edl->next_edit(new_position));
3574                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3575                 if( prev_label ) snapper(prev_label->position);
3576                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3577                 if( next_label ) snapper(next_label->position);
3578                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3579                         mwindow->edl->local_session->zoom_sample -
3580                         mwindow->edl->local_session->view_start[pane->number];
3581                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3582                         snapped = 1;
3583                         new_position = snap_position;
3584                 }
3585 #undef snapper
3586         }
3587
3588         if(new_position != mwindow->session->drag_position)
3589         {
3590                 mwindow->session->drag_position = new_position;
3591                 gui->mainclock->update(new_position);
3592
3593
3594                 timebar_position = new_position;
3595                 gui->update_timebar(0);
3596 // Que the CWindow.  Doesn't do anything if selectionstart and selection end
3597 // aren't changed.
3598 //              mwindow->cwindow->update(1, 0, 0);
3599         }
3600 }
3601
3602 int TrackCanvas::update_drag_edit()
3603 {
3604         int result = 0;
3605
3606
3607
3608         return result;
3609 }
3610
3611 int TrackCanvas::get_drag_values(float *percentage,
3612         int64_t *position,
3613         int do_clamp,
3614         int cursor_x,
3615         int cursor_y,
3616         Auto *current)
3617 {
3618         //int x = cursor_x - mwindow->session->drag_origin_x;
3619         //int y = cursor_y - mwindow->session->drag_origin_y;
3620         *percentage = 0;
3621         *position = 0;
3622
3623         if(!current->autos->track->record) return 1;
3624         double view_start;
3625         double unit_start;
3626         double view_end;
3627         double unit_end;
3628         double yscale;
3629         int center_pixel;
3630         double zoom_sample;
3631         double zoom_units;
3632
3633         calculate_viewport(current->autos->track,
3634                 view_start,
3635                 unit_start,
3636                 view_end,
3637                 unit_end,
3638                 yscale,
3639                 center_pixel,
3640                 zoom_sample,
3641                 zoom_units);
3642
3643         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3644                 yscale +
3645                 mwindow->session->drag_start_percentage;
3646         if(do_clamp) CLAMP(*percentage, 0, 1);
3647
3648         *position = Units::to_int64(zoom_units *
3649                 (cursor_x - mwindow->session->drag_origin_x) +
3650                 mwindow->session->drag_start_position + 0.5);
3651
3652         if((do_clamp) && *position < 0) *position = 0;
3653         return 0;
3654 }
3655
3656
3657 #define UPDATE_DRAG_HEAD(do_clamp) \
3658         int result = 0, center_pixel; \
3659         if(!current->autos->track->record) return 0; \
3660         double view_start, unit_start, view_end, unit_end; \
3661         double yscale, zoom_sample, zoom_units; \
3662  \
3663         calculate_viewport(current->autos->track,  \
3664                 view_start, unit_start, view_end, unit_end, \
3665                 yscale, center_pixel, zoom_sample, zoom_units); \
3666  \
3667         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3668                 yscale +  mwindow->session->drag_start_percentage; \
3669         if(do_clamp) CLAMP(percentage, 0, 1); \
3670  \
3671         int64_t position = Units::to_int64(zoom_units * \
3672                 (cursor_x - mwindow->session->drag_origin_x) + \
3673                 mwindow->session->drag_start_position); \
3674         if((do_clamp) && position < 0) position = 0;
3675
3676
3677 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3678 {
3679         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
3680
3681         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
3682         int x = cursor_x - mwindow->session->drag_origin_x;
3683         int y = cursor_y - mwindow->session->drag_origin_y;
3684         float value, old_value;
3685
3686         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
3687 // not really editing the node, rather start editing the curve
3688 // tangent is editable and drag movement is significant
3689                 if( (FloatAuto::FREE == current->curve_mode ||
3690                      FloatAuto::TFREE==current->curve_mode) &&
3691                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
3692                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
3693         }
3694
3695         switch(mwindow->session->drag_handle) {
3696         case 0: // Center
3697 // Snap to nearby values
3698                 old_value = current->get_value();
3699                 if(shift_down()) {
3700                         double value1, value2, distance1, distance2;
3701
3702                         if(current->previous) {
3703                                 int autogrouptype = current->previous->autos->autogrouptype;
3704                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3705                                 value1 = ((FloatAuto*)current->previous)->get_value();
3706                                 distance1 = fabs(value - value1);
3707                                 current->set_value(value1);
3708                         }
3709
3710                         if(current->next) {
3711                                 int autogrouptype = current->next->autos->autogrouptype;
3712                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3713                                 value2 = ((FloatAuto*)current->next)->get_value();
3714                                 distance2 = fabs(value - value2);
3715                                 if(!current->previous || distance2 < distance1) {
3716                                         current->set_value(value2);
3717                                 }
3718                         }
3719
3720                         if(!current->previous && !current->next) {
3721                                 current->set_value( ((FloatAutos*)current->autos)->default_);
3722                         }
3723                         value = current->get_value();
3724                 }
3725                 else {
3726                         int autogrouptype = current->autos->autogrouptype;
3727                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
3728                 }
3729
3730                 if(alt_down() && !shift_down())
3731 // ALT constrains movement: fixed position, only changing the value
3732                         position = mwindow->session->drag_start_position;
3733
3734                 if(value != old_value || position != current->position) {
3735                         result = 1;
3736                         float change = value - old_value;
3737                         current->adjust_to_new_coordinates(position, value);
3738                         synchronize_autos(change, current->autos->track, current, 0);
3739                         show_message(current, 1,", %.2f", current->get_value());
3740                 }
3741                 break;
3742
3743 // In control
3744         case 1: {
3745                 int autogrouptype = current->autos->autogrouptype;
3746                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3747                 if(value != current->get_control_in_value())
3748                 {
3749                         result = 1;
3750                         // note: (position,value) need not be at the location of the ctrl point,
3751                         // but could be somewhere in between on the curve (or even outward or
3752                         // on the opposit side). We set the new control point such as
3753                         // to point the curve through (position,value)
3754                         current->set_control_in_value(
3755                                 value * levered_position(position - current->position,
3756                                                          current->get_control_in_position()));
3757                         synchronize_autos(0, current->autos->track, current, 0);
3758                         show_message(current, 1,", %.2f", current->get_control_in_value());
3759                 }
3760                 break; }
3761
3762 // Out control
3763         case 2: {
3764                 int autogrouptype = current->autos->autogrouptype;
3765                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3766                 if(value != current->get_control_out_value()) {
3767                         result = 1;
3768                         current->set_control_out_value(
3769                                 value * levered_position(position - current->position,
3770                                                          current->get_control_out_position()));
3771                         synchronize_autos(0, current->autos->track, current, 0);
3772                         show_message(current, 1,", %.2f", current->get_control_out_value());
3773                 }
3774                 break; }
3775         }
3776
3777         return result;
3778 }
3779
3780 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
3781 {
3782         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
3783
3784         UPDATE_DRAG_HEAD(1);
3785         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
3786
3787         if(value != current->value || position != current->position)
3788         {
3789                 result = 1;
3790                 current->value = value;
3791                 current->position = position;
3792                 show_message(current, 0,", %d", current->value);
3793         }
3794
3795         return result;
3796 }
3797
3798 // Autos which can't change value through dragging.
3799
3800 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
3801 {
3802         Auto *current = (Auto*)mwindow->session->drag_auto;
3803
3804         UPDATE_DRAG_HEAD(1)
3805         if(position != current->position)
3806         {
3807                 result = 1;
3808                 current->position = position;
3809                 show_message(current, 0,"");
3810
3811                 double position_f = current->autos->track->from_units(current->position);
3812                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
3813                         mwindow->edl->local_session->get_selectionend(1)) /
3814                         2;
3815                 if(!shift_down())
3816                 {
3817                         mwindow->edl->local_session->set_selectionstart(position_f);
3818                         mwindow->edl->local_session->set_selectionend(position_f);
3819                 }
3820                 else
3821                 if(position_f < center_f)
3822                 {
3823                         mwindow->edl->local_session->set_selectionstart(position_f);
3824                 }
3825                 else
3826                         mwindow->edl->local_session->set_selectionend(position_f);
3827         }
3828
3829
3830         return result;
3831 }
3832
3833 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
3834 {
3835         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
3836
3837         UPDATE_DRAG_HEAD(1)
3838         if(position != current->position)
3839         {
3840 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
3841                 Track *track = current->autos->track;
3842                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
3843                 PluginSet *pluginset;
3844                 Plugin *plugin = 0;
3845 // figure out the correct pluginset & correct plugin
3846                 int found = 0;
3847                 for(int i = 0; i < track->plugin_set.total; i++)
3848                 {
3849                         pluginset = track->plugin_set.values[i];
3850                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
3851                         {
3852                                 KeyFrames *keyframes = plugin->keyframes;
3853                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
3854                                         currentkeyframe;
3855                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
3856                                 {
3857                                         if (currentkeyframe == current)
3858                                         {
3859                                                 found = 1;
3860                                                 break;
3861                                         }
3862
3863                                 }
3864                                 if (found) break;
3865                         }
3866                         if (found) break;
3867                 }
3868
3869                 mwindow->session->plugin_highlighted = plugin;
3870                 mwindow->session->track_highlighted = track;
3871                 result = 1;
3872                 current->position = position;
3873                 show_message(current, 0,"");
3874
3875                 double position_f = current->autos->track->from_units(current->position);
3876                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
3877                         mwindow->edl->local_session->get_selectionend(1)) /
3878                         2;
3879                 if(!shift_down())
3880                 {
3881                         mwindow->edl->local_session->set_selectionstart(position_f);
3882                         mwindow->edl->local_session->set_selectionend(position_f);
3883                 }
3884                 else
3885                 if(position_f < center_f)
3886                 {
3887                         mwindow->edl->local_session->set_selectionstart(position_f);
3888                 }
3889                 else
3890                         mwindow->edl->local_session->set_selectionend(position_f);
3891         }
3892
3893
3894         return result;
3895 }
3896
3897 void TrackCanvas::update_drag_caption()
3898 {
3899         switch(mwindow->session->current_operation)
3900         {
3901                 case DRAG_FADE:
3902
3903                         break;
3904         }
3905 }
3906
3907
3908
3909 int TrackCanvas::cursor_update(int in_motion)
3910 {
3911         int result = 0;
3912         int cursor_x = 0;
3913         int cursor_y = 0;
3914         int update_clock = 0;
3915         int update_zoom = 0;
3916         int update_scroll = 0;
3917         int update_overlay = 0;
3918         int update_cursor = 0;
3919         int new_cursor = 0;
3920         int rerender = 0;
3921         double position = 0.;
3922 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
3923
3924 // Default cursor
3925         switch(mwindow->edl->session->editing_mode)
3926         {
3927                 case EDITING_ARROW: new_cursor = ARROW_CURSOR; break;
3928                 case EDITING_IBEAM: new_cursor = IBEAM_CURSOR; break;
3929         }
3930
3931         switch(mwindow->session->current_operation)
3932         {
3933                 case DRAG_EDITHANDLE1:
3934 // Outside threshold.  Upgrade status
3935                         if(active)
3936                         {
3937                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
3938                                 {
3939                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
3940                                         update_overlay = 1;
3941                                 }
3942                         }
3943                         break;
3944
3945                 case DRAG_EDITHANDLE2:
3946                         if(active)
3947                         {
3948                                 update_drag_handle();
3949                                 update_overlay = 1;
3950                         }
3951                         break;
3952
3953                 case DRAG_PLUGINHANDLE1:
3954                         if(active)
3955                         {
3956                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
3957                                 {
3958                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
3959                                         update_overlay = 1;
3960                                 }
3961                         }
3962                         break;
3963
3964                 case DRAG_PLUGINHANDLE2:
3965                         if(active)
3966                         {
3967                                 update_drag_handle();
3968                                 update_overlay = 1;
3969                         }
3970                         break;
3971
3972 // Rubber band curves
3973                 case DRAG_FADE:
3974                 case DRAG_SPEED:
3975                 case DRAG_CZOOM:
3976                 case DRAG_PZOOM:
3977                 case DRAG_CAMERA_X:
3978                 case DRAG_CAMERA_Y:
3979                 case DRAG_CAMERA_Z:
3980                 case DRAG_PROJECTOR_X:
3981                 case DRAG_PROJECTOR_Y:
3982                 case DRAG_PROJECTOR_Z:
3983                         if(active) rerender = update_overlay =
3984                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
3985                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
3986                                 mwindow->speed_after(!in_motion ? 1 : 0);
3987                         break;
3988
3989                 case DRAG_PLAY:
3990                         if(active) rerender = update_overlay =
3991                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
3992                         break;
3993
3994                 case DRAG_MUTE:
3995                         if(active) rerender = update_overlay =
3996                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
3997                         break;
3998
3999 // Keyframe icons are sticky
4000                 case DRAG_PAN_PRE:
4001                 case DRAG_MASK_PRE:
4002                 case DRAG_MODE_PRE:
4003                 case DRAG_PLUGINKEY_PRE:
4004                         if(active) {
4005                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4006                                         mwindow->session->current_operation++;
4007                                         update_overlay = 1;
4008
4009                                         mwindow->undo->update_undo_before();
4010                                 }
4011                         }
4012                         break;
4013
4014                 case DRAG_PAN:
4015                 case DRAG_MASK:
4016                 case DRAG_MODE:
4017                         if(active) rerender = update_overlay =
4018                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4019                         break;
4020
4021                 case DRAG_PLUGINKEY:
4022                         if(active) rerender = update_overlay =
4023                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4024                         break;
4025
4026                 case SELECT_REGION:
4027                         if(active) {
4028                                 cursor_x = get_cursor_x();
4029                                 cursor_y = get_cursor_y();
4030                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4031                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4032
4033                                 position = mwindow->edl->align_to_frame(position, 0);
4034                                 position = MAX(position, 0);
4035
4036                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4037                                 double end = mwindow->edl->local_session->get_selectionend(1);
4038                                 if(position < selection_midpoint) {
4039                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4040                                         mwindow->edl->local_session->set_selectionstart(position);
4041                                 }
4042                                 else {
4043                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4044                                         mwindow->edl->local_session->set_selectionend(position);
4045                                 }
4046         // Que the CWindow
4047                                 gui->unlock_window();
4048                                 int dir =
4049                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4050                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4051                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4052                                 gui->lock_window("TrackCanvas::cursor_update 1");
4053         // Update the faders
4054                                 mwindow->update_plugin_guis();
4055                                 gui->update_patchbay();
4056
4057                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4058
4059                                 gui->hide_cursor(0);
4060                                 gui->draw_cursor(1);
4061                                 gui->update_timebar(0);
4062                                 gui->flash_canvas(1);
4063                                 result = 1;
4064                                 update_clock = 1;
4065                                 update_zoom = 1;
4066                                 update_scroll = 1;
4067                         }
4068                         break;
4069
4070                 default:
4071                         if(is_event_win() && cursor_inside()) {
4072 // Update clocks
4073                                 cursor_x = get_cursor_x();
4074                                 position = (double)cursor_x *
4075                                         (double)mwindow->edl->local_session->zoom_sample /
4076                                         (double)mwindow->edl->session->sample_rate +
4077                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4078                                         (double)mwindow->edl->local_session->zoom_sample /
4079                                         (double)mwindow->edl->session->sample_rate;
4080                                 position = mwindow->edl->align_to_frame(position, 0);
4081                                 update_clock = 1;
4082
4083 // set all timebars
4084                                 for(int i = 0; i < TOTAL_PANES; i++)
4085                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4086
4087 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4088                                 gui->update_timebar(0);
4089 // Update cursor
4090                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4091                                                 0, new_cursor, update_cursor)) break;
4092                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4093                                         0, 0, new_cursor, update_cursor, rerender)) break;
4094                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4095                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4096 // Plugin boundaries
4097                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4098                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4099                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4100                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4101                         }
4102                         break;
4103         }
4104
4105 //printf("TrackCanvas::cursor_update 1\n");
4106         if(update_cursor && new_cursor != get_cursor())
4107         {
4108                 set_cursor(new_cursor, 0, 1);
4109         }
4110
4111 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4112         if(rerender && render_timer->get_difference() > 0.25 ) {
4113                 render_timer->update();
4114                 mwindow->restart_brender();
4115                 mwindow->sync_parameters(CHANGE_PARAMS);
4116                 mwindow->update_plugin_guis();
4117                 gui->unlock_window();
4118                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4119                 gui->lock_window("TrackCanvas::cursor_update 2");
4120         }
4121         if(rerender) {
4122 // Update faders
4123                 gui->update_patchbay();
4124         }
4125
4126
4127         if(update_clock) {
4128                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4129                         gui->mainclock->update(position);
4130         }
4131
4132         if(update_zoom) {
4133                 gui->zoombar->update();
4134         }
4135
4136         if(update_scroll) {
4137                 if(!drag_scroll &&
4138                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4139                         start_dragscroll();
4140                 else
4141                 if(drag_scroll &&
4142                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4143                         stop_dragscroll();
4144         }
4145
4146         if(update_overlay) {
4147                 gui->draw_overlays(1);
4148         }
4149
4150 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4151         return result;
4152 }
4153
4154 int TrackCanvas::cursor_motion_event()
4155 {
4156         return cursor_update(1);
4157 }
4158
4159 void TrackCanvas::start_dragscroll()
4160 {
4161         if(!drag_scroll) {
4162                 drag_scroll = 1;
4163                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4164 //printf("TrackCanvas::start_dragscroll 1\n");
4165         }
4166 }
4167
4168 void TrackCanvas::stop_dragscroll()
4169 {
4170         if(drag_scroll) {
4171                 drag_scroll = 0;
4172                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4173 //printf("TrackCanvas::stop_dragscroll 1\n");
4174         }
4175 }
4176
4177 int TrackCanvas::repeat_event(int64_t duration)
4178 {
4179         if(!drag_scroll) return 0;
4180         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4181
4182         int sample_movement = 0;
4183         int track_movement = 0;
4184         int64_t x_distance = 0;
4185         int64_t y_distance = 0;
4186         double position = 0;
4187         int result = 0;
4188
4189         switch(mwindow->session->current_operation) {
4190                 case SELECT_REGION:
4191 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4192                 if(get_cursor_x() > get_w()) {
4193                                 x_distance = get_cursor_x() - get_w();
4194                                 sample_movement = 1;
4195                 }
4196                 else if(get_cursor_x() < 0) {
4197                         x_distance = get_cursor_x();
4198                         sample_movement = 1;
4199                 }
4200
4201                 if(get_cursor_y() > get_h()) {
4202                         y_distance = get_cursor_y() - get_h();
4203                         track_movement = 1;
4204                 }
4205                 else if(get_cursor_y() < 0) {
4206                         y_distance = get_cursor_y();
4207                         track_movement = 1;
4208                 }
4209                 result = 1;
4210                 break;
4211         }
4212
4213         if(sample_movement) {
4214                 position = (double)(get_cursor_x() +
4215                         mwindow->edl->local_session->view_start[pane->number] +
4216                         x_distance) *
4217                         mwindow->edl->local_session->zoom_sample /
4218                         mwindow->edl->session->sample_rate;
4219                 position = mwindow->edl->align_to_frame(position, 0);
4220                 position = MAX(position, 0);
4221
4222 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4223                 switch(mwindow->session->current_operation) {
4224                 case SELECT_REGION:
4225                         if(position < selection_midpoint) {
4226                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4227                                 mwindow->edl->local_session->set_selectionstart(position);
4228 // Que the CWindow
4229                                 gui->unlock_window();
4230                                 mwindow->cwindow->update(1, 0, 0);
4231                                 gui->lock_window("TrackCanvas::repeat_event");
4232 // Update the faders
4233                                 mwindow->update_plugin_guis();
4234                                 gui->update_patchbay();
4235                         }
4236                         else {
4237                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4238                                 mwindow->edl->local_session->set_selectionend(position);
4239 // Don't que the CWindow
4240                         }
4241                         break;
4242                 }
4243
4244                 mwindow->samplemovement(
4245                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4246                         pane->number);
4247         }
4248
4249         if(track_movement) {
4250                 mwindow->trackmovement(y_distance, pane->number);
4251         }
4252
4253         return result;
4254 }
4255
4256 int TrackCanvas::button_release_event()
4257 {
4258         int redraw = -1, update_overlay = 0;
4259         int result = 0, load_flags = 0;
4260
4261 // printf("TrackCanvas::button_release_event %d\n",
4262 // mwindow->session->current_operation);
4263         if(active) {
4264                 switch(mwindow->session->current_operation) {
4265                 case DRAG_EDITHANDLE2:
4266                         mwindow->session->current_operation = NO_OPERATION;
4267                         drag_scroll = 0;
4268                         result = 1;
4269
4270                         end_edithandle_selection();
4271                         break;
4272
4273                 case DRAG_EDITHANDLE1:
4274                         mwindow->session->current_operation = NO_OPERATION;
4275                         drag_scroll = 0;
4276                         result = 1;
4277                         break;
4278
4279                 case DRAG_PLUGINHANDLE2:
4280                         mwindow->session->current_operation = NO_OPERATION;
4281                         drag_scroll = 0;
4282                         result = 1;
4283
4284                         end_pluginhandle_selection();
4285                         break;
4286
4287                 case DRAG_PLUGINHANDLE1:
4288                         mwindow->session->current_operation = NO_OPERATION;
4289                         drag_scroll = 0;
4290                         result = 1;
4291                         break;
4292
4293                 case DRAG_SPEED:
4294                         redraw = FORCE_REDRAW;
4295                         load_flags |= LOAD_EDITS;
4296                 case DRAG_FADE:
4297 // delete the drag_auto_gang first and remove out of order keys
4298                         synchronize_autos(0, 0, 0, -1);
4299                 case DRAG_CZOOM:
4300                 case DRAG_PZOOM:
4301                 case DRAG_PLAY:
4302                 case DRAG_MUTE:
4303                 case DRAG_MASK:
4304                 case DRAG_MODE:
4305                 case DRAG_PAN:
4306                 case DRAG_CAMERA_X:
4307                 case DRAG_CAMERA_Y:
4308                 case DRAG_CAMERA_Z:
4309                 case DRAG_PROJECTOR_X:
4310                 case DRAG_PROJECTOR_Y:
4311                 case DRAG_PROJECTOR_Z:
4312                 case DRAG_PLUGINKEY:
4313                         load_flags |= LOAD_AUTOMATION;
4314                         mwindow->session->current_operation = NO_OPERATION;
4315                         mwindow->session->drag_handle = 0;
4316 // Remove any out-of-order keyframe
4317                         if(mwindow->session->drag_auto) {
4318                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4319                                                 mwindow->session->drag_auto);
4320 //                              mwindow->session->drag_auto->autos->optimize();
4321                                 update_overlay = 1;
4322                         }
4323
4324                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4325                         result = 1;
4326                         break;
4327
4328                 case DRAG_EDIT:
4329                 case DRAG_AEFFECT_COPY:
4330                 case DRAG_VEFFECT_COPY:
4331 // Trap in drag stop
4332                         break;
4333
4334
4335                 default:
4336                         if(mwindow->session->current_operation) {
4337 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4338 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4339 //                              }
4340
4341                                 mwindow->session->current_operation = NO_OPERATION;
4342                                 drag_scroll = 0;
4343 // Traps button release events
4344 //                              result = 1;
4345                         }
4346                         break;
4347                 }
4348         }
4349
4350         if (result)
4351                 cursor_update(0);
4352
4353         if(update_overlay) {
4354                 gui->draw_overlays(1);
4355         }
4356         if(redraw >= 0) {
4357                 gui->draw_canvas(redraw, 0);
4358                 gui->flash_canvas(1);
4359         }
4360         return result;
4361 }
4362
4363 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4364         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4365 {
4366         Edit *edit_result = 0;
4367         int handle_result = -1;
4368         int result = 0;
4369
4370         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4371                 if( !track->show_assets() ) continue;
4372
4373                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4374                         int64_t edit_x, edit_y, edit_w, edit_h;
4375                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4376
4377                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4378                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4379                                 if( cursor_x < edit_x + HANDLE_W ) {
4380                                         edit_result = edit;
4381                                         handle_result = 0;
4382                                         if( cursor_y >= edit_y+edit_h - HANDLE_W ) {
4383                                                 new_cursor = DOWNLEFT_RESIZE;
4384                                                 if( button_press == LEFT_BUTTON )
4385                                                         result = -1;
4386                                         }
4387                                         else
4388                                                 result = 1;
4389                                 }
4390                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4391                                         edit_result = edit;
4392                                         handle_result = 1;
4393                                         if( cursor_y >= edit_y+edit_h - HANDLE_W ) {
4394                                                 new_cursor = DOWNRIGHT_RESIZE;
4395                                                 if( button_press == LEFT_BUTTON )
4396                                                         result = -1;
4397                                         }
4398                                         else
4399                                                 result = 1;
4400                                 }
4401                         }
4402                 }
4403         }
4404
4405         update_cursor = 1;
4406         if( result > 0 ) {
4407                 double position = 0;
4408                 if( handle_result == 0 ) {
4409                         position = edit_result->track->from_units(edit_result->startproject);
4410                         new_cursor = LEFT_CURSOR;
4411                 }
4412                 else if( handle_result == 1 ) {
4413                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4414                         new_cursor = RIGHT_CURSOR;
4415                 }
4416
4417 // Reposition cursor
4418                 if( button_press ) {
4419                         mwindow->session->drag_edit = edit_result;
4420                         mwindow->session->drag_handle = handle_result;
4421                         mwindow->session->drag_button = get_buttonpress() - 1;
4422                         mwindow->session->drag_position = position;
4423                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4424                         mwindow->session->drag_origin_x = get_cursor_x();
4425                         mwindow->session->drag_origin_y = get_cursor_y();
4426                         mwindow->session->drag_start = position;
4427
4428                         rerender = start_selection(position);
4429                         update_overlay = 1;
4430                 }
4431         }
4432         else if( result <  0) {
4433                 mwindow->undo->update_undo_before();
4434                 if( !shift_down() ) {
4435                         if( handle_result == 0 )
4436                                 edit_result->hard_left = !edit_result->hard_left;
4437                         else if( handle_result == 1 )
4438                                 edit_result->hard_right = !edit_result->hard_right;
4439                 }
4440                 else {
4441                         int status = handle_result == 0 ? edit_result->hard_left :
4442                                      handle_result == 1 ? edit_result->hard_right : 0;
4443                         int new_status = !status;
4444                         int64_t edit_edge = edit_result->startproject;
4445                         if( handle_result == 1 ) edit_edge += edit_result->length;
4446                         double edge_position = edit_result->track->from_units(edit_edge);
4447                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4448                                 int64_t track_position = track->to_units(edge_position, 1);
4449                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4450                                 if( left_edit ) {
4451                                         int64_t left_edge = left_edit->startproject;
4452                                         double left_position = track->from_units(left_edge);
4453                                         if( EQUIV(edge_position, left_position) ) {
4454                                                 left_edit->hard_left = new_status;
4455                                                 if( left_edit->previous )
4456                                                         left_edit->previous->hard_right = new_status;
4457                                         }
4458                                 }
4459                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4460                                 if( right_edit ) {
4461                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4462                                         double right_position = track->from_units(right_edge);
4463                                         if( EQUIV(edge_position, right_position) ) {
4464                                                 right_edit->hard_right = new_status;
4465                                                 if( right_edit->next )
4466                                                         right_edit->next->hard_left = new_status;
4467                                         }
4468                                 }
4469                         }
4470                 }
4471                 rerender = update_overlay = 1;
4472                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4473                 result = 1;
4474         }
4475
4476         return result;
4477 }
4478
4479 int TrackCanvas::do_plugin_handles(int cursor_x,
4480         int cursor_y,
4481         int button_press,
4482         int &rerender,
4483         int &update_overlay,
4484         int &new_cursor,
4485         int &update_cursor)
4486 {
4487         Plugin *plugin_result = 0;
4488         int handle_result = 0;
4489         int result = 0;
4490
4491         for(Track *track = mwindow->edl->tracks->first;
4492                 track && !result;
4493                 track = track->next) {
4494                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4495                         PluginSet *plugin_set = track->plugin_set.values[i];
4496                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4497                                 plugin && !result;
4498                                 plugin = (Plugin*)plugin->next) {
4499                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4500                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4501
4502                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4503                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4504                                         if(cursor_x < plugin_x + HANDLE_W) {
4505                                                 plugin_result = plugin;
4506                                                 handle_result = 0;
4507                                                 result = 1;
4508                                         }
4509                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4510                                                 plugin_result = plugin;
4511                                                 handle_result = 1;
4512                                                 result = 1;
4513                                         }
4514                                 }
4515                         }
4516
4517                         if(result && shift_down())
4518                                 mwindow->session->trim_edits = plugin_set;
4519                 }
4520         }
4521
4522         update_cursor = 1;
4523         if(result) {
4524                 double position = 0;
4525                 if(handle_result == 0) {
4526                         position = plugin_result->track->from_units(plugin_result->startproject);
4527                         new_cursor = LEFT_CURSOR;
4528                 }
4529                 else if(handle_result == 1) {
4530                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4531                         new_cursor = RIGHT_CURSOR;
4532                 }
4533
4534                 if(button_press) {
4535                         mwindow->session->drag_plugin = plugin_result;
4536                         mwindow->session->drag_handle = handle_result;
4537                         mwindow->session->drag_button = get_buttonpress() - 1;
4538                         mwindow->session->drag_position = position;
4539                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4540                         mwindow->session->drag_origin_x = get_cursor_x();
4541                         mwindow->session->drag_origin_y = get_cursor_y();
4542                         mwindow->session->drag_start = position;
4543
4544                         rerender = start_selection(position);
4545                         update_overlay = 1;
4546                 }
4547         }
4548
4549         return result;
4550 }
4551
4552
4553 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4554 {
4555         int result = 0;
4556
4557         for(Track *track = mwindow->edl->tracks->first;
4558                 track && !result;
4559                 track = track->next) {
4560                 int64_t track_x, track_y, track_w, track_h;
4561                 track_dimensions(track, track_x, track_y, track_w, track_h);
4562
4563                 if( button_press && get_buttonpress() == RIGHT_BUTTON &&
4564                     cursor_y >= track_y && cursor_y < track_y + track_h) {
4565                         double pos = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4566                         int64_t position = track->to_units(pos, 0);
4567                         gui->edit_menu->update(track, track->edits->editof(position, PLAY_FORWARD, 0));
4568                         gui->edit_menu->activate_menu();
4569                         result = 1;
4570                 }
4571         }
4572
4573         return result;
4574 }
4575
4576 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4577         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4578 {
4579         int result = 0;
4580
4581         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4582                 if( !track->show_assets() ) continue;
4583
4584                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4585                         int64_t edit_x, edit_y, edit_w, edit_h;
4586                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4587
4588 // Cursor inside a track
4589 // Cursor inside an edit
4590                         if(cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4591                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h) {
4592 // Select duration of edit
4593                                 if(button_press) {
4594                                         if(get_double_click() && !drag_start) {
4595                                                 mwindow->edl->local_session->set_selectionstart(edit->track->from_units(edit->startproject));
4596                                                 mwindow->edl->local_session->set_selectionend(edit->track->from_units(edit->startproject) +
4597                                                         edit->track->from_units(edit->length));
4598                                                 if(mwindow->edl->session->cursor_on_frames)
4599                                                 {
4600                                                         mwindow->edl->local_session->set_selectionstart(
4601                                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
4602                                                         mwindow->edl->local_session->set_selectionend(
4603                                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
4604                                                 }
4605                                                 redraw = 1;
4606                                                 rerender = 1;
4607                                                 update_cursor = -1;
4608                                                 result = 1;
4609                                         }
4610                                 }
4611                                 else if(drag_start && track->record) {
4612                                         if(mwindow->edl->session->editing_mode == EDITING_ARROW) {
4613 // Need to create drag window
4614                                                 mwindow->session->current_operation = DRAG_EDIT;
4615                                                 mwindow->session->drag_edit = edit;
4616 //printf("TrackCanvas::do_edits 2\n");
4617
4618 // Drag only one edit if ctrl is initially down
4619                                                 if(ctrl_down()) {
4620                                                         mwindow->session->drag_edits->remove_all();
4621                                                         mwindow->session->drag_edits->append(edit);
4622                                                 }
4623                                                 else {
4624 // Construct list of all affected edits
4625                                                         mwindow->edl->tracks->get_affected_edits(
4626                                                                 mwindow->session->drag_edits,
4627                                                                 edit->track->from_units(edit->startproject),
4628                                                                 edit->track);
4629                                                 }
4630                                                 mwindow->session->drag_origin_x = cursor_x;
4631                                                 mwindow->session->drag_origin_y = cursor_y;
4632                                                 // Where the drag started, so we know relative position inside the edit later
4633                                                 mwindow->session->drag_position = (double)cursor_x *
4634                                                         mwindow->edl->local_session->zoom_sample /
4635                                                         mwindow->edl->session->sample_rate +
4636                                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4637                                                         mwindow->edl->local_session->zoom_sample /
4638                                                         mwindow->edl->session->sample_rate;
4639
4640                                                 int cx, cy;
4641                                                 get_abs_cursor(cx, cy);
4642                                                 gui->drag_popup = new BC_DragWindow(gui,
4643                                                         mwindow->theme->get_image("clip_icon"), cx, cy);
4644
4645                                                 result = 1;
4646                                         }
4647                                 }
4648                         }
4649                 }
4650         }
4651         return result;
4652 }
4653
4654
4655 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
4656 {
4657         return 0;
4658 }
4659
4660 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
4661         int button_press, int &redraw, int &rerender)
4662 {
4663         Plugin *plugin = 0;
4664         int result = 0;
4665         int done = 0;
4666         int64_t x, y, w, h;
4667         Track *track = 0;
4668
4669         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
4670                 if(!track->expand_view) continue;
4671
4672                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
4673                         // first check if plugins are visible at all
4674                         if (!track->expand_view)
4675                                 continue;
4676                         PluginSet *plugin_set = track->plugin_set.values[i];
4677                         for(plugin = (Plugin*)plugin_set->first;
4678                                 plugin && !done;
4679                                 plugin = (Plugin*)plugin->next) {
4680                                 plugin_dimensions(plugin, x, y, w, h);
4681                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
4682                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
4683                                         if(cursor_x >= x && cursor_x < x + w &&
4684                                                 cursor_y >= y && cursor_y < y + h) {
4685                                                 done = 1;
4686                                                 break;
4687                                         }
4688                                 }
4689                         }
4690                 }
4691         }
4692
4693         if(plugin) {
4694 // Start plugin popup
4695                 if(button_press) {
4696                         if(get_buttonpress() == 3) {
4697                                 gui->plugin_menu->update(plugin);
4698                                 gui->plugin_menu->activate_menu();
4699                                 result = 1;
4700                         }
4701                         else if (get_double_click() && !drag_start) {
4702 // Select range of plugin on doubleclick over plugin
4703                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
4704                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
4705                                         plugin->track->from_units(plugin->length));
4706                                 if(mwindow->edl->session->cursor_on_frames) {
4707                                         mwindow->edl->local_session->set_selectionstart(
4708                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
4709                                         mwindow->edl->local_session->set_selectionend(
4710                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
4711                                 }
4712                                 rerender = 1;
4713                                 redraw = 1;
4714                                 result = 1;
4715                         }
4716                 }
4717                 else
4718 // Move plugin
4719                 if(drag_start && plugin->track->record) {
4720                         if(mwindow->edl->session->editing_mode == EDITING_ARROW) {
4721                                 if(plugin->track->data_type == TRACK_AUDIO)
4722                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
4723                                 else if(plugin->track->data_type == TRACK_VIDEO)
4724                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
4725
4726                                 mwindow->session->drag_plugin = plugin;
4727                                 mwindow->session->drag_origin_x = cursor_x;
4728                                 mwindow->session->drag_origin_y = cursor_y;
4729                                 // Where the drag started, so we know relative position inside the edit later
4730                                 mwindow->session->drag_position =
4731                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4732                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4733 // Create picon
4734                                 switch(plugin->plugin_type) {
4735                                 case PLUGIN_STANDALONE: {
4736                                         PluginServer *server =
4737                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
4738                                         if( !server ) break;
4739                                         VFrame *frame = server->picon;
4740                                         if(!frame) {
4741                                                 if(plugin->track->data_type == TRACK_AUDIO) {
4742                                                         frame = mwindow->theme->get_image("aeffect_icon");
4743                                                 }
4744                                                 else {
4745                                                         frame = mwindow->theme->get_image("veffect_icon");
4746                                                 }
4747                                         }
4748                                         int cx, cy;
4749                                         get_abs_cursor(cx, cy);
4750                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
4751                                                 break; }
4752
4753                                 case PLUGIN_SHAREDPLUGIN:
4754                                 case PLUGIN_SHAREDMODULE: {
4755                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
4756                                         int cx, cy;
4757                                         get_abs_cursor(cx, cy);
4758                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
4759                                         break; }
4760                                 }
4761
4762                                 result = 1;
4763                         }
4764                 }
4765         }
4766
4767         return result;
4768 }
4769
4770 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
4771         int button_press, int &new_cursor, int &update_cursor)
4772 {
4773         Transition *transition = 0;
4774         int result = 0;
4775         int64_t x, y, w, h;
4776
4777
4778         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
4779                 if( !track->show_transitions() ) continue;
4780
4781                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
4782                         if( edit->transition ) {
4783                                 edit_dimensions(edit, x, y, w, h);
4784                                 get_transition_coords(edit, x, y, w, h);
4785
4786                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
4787                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
4788                                         if( cursor_x >= x && cursor_x < x + w &&
4789                                                 cursor_y >= y && cursor_y < y + h ) {
4790                                                 transition = edit->transition;
4791                                                 result = 1;
4792                                                 break;
4793                                         }
4794                                 }
4795                         }
4796                 }
4797         }
4798
4799         update_cursor = 1;
4800         if(transition) {
4801                 if(!button_press) {
4802                         new_cursor = UPRIGHT_ARROW_CURSOR;
4803                 }
4804                 else if(get_buttonpress() == 3) {
4805                         gui->transition_menu->update(transition);
4806                         gui->transition_menu->activate_menu();
4807                 }
4808         }
4809
4810         return result;
4811 }
4812
4813 int TrackCanvas::button_press_event()
4814 {
4815         int result = 0;
4816         int cursor_x, cursor_y;
4817         int new_cursor;
4818
4819         cursor_x = get_cursor_x();
4820         cursor_y = get_cursor_y();
4821         mwindow->session->trim_edits = 0;
4822
4823         if(is_event_win() && cursor_inside()) {
4824 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4825
4826                 result = 1;
4827                 if(!active) {
4828                         activate();
4829                 }
4830
4831                 if( get_buttonpress() == LEFT_BUTTON ) {
4832                         gui->stop_transport("TrackCanvas::button_press_event");
4833                 }
4834
4835                 int update_overlay = 0, update_cursor = 0, rerender = 0;
4836
4837                 if(get_buttonpress() == WHEEL_UP) {
4838                         if(shift_down())
4839                                 mwindow->expand_sample();
4840                         else if(ctrl_down())
4841                                 mwindow->move_left(get_w()/ 10);
4842                         else
4843                                 mwindow->move_up(get_h() / 10);
4844                 }
4845                 else if(get_buttonpress() == WHEEL_DOWN) {
4846                         if(shift_down())
4847                                 mwindow->zoom_in_sample();
4848                         else if(ctrl_down())
4849                                 mwindow->move_right(get_w() / 10);
4850                         else
4851                                 mwindow->move_down(get_h() / 10);
4852                 }
4853                 else if(get_buttonpress() == 6) {
4854                         if(ctrl_down())
4855                                 mwindow->move_left(get_w());
4856                         else if(alt_down())
4857                                 mwindow->move_left(get_w() / 20);
4858                         else
4859                                 mwindow->move_left(get_w() / 5);
4860                 }
4861                 else if(get_buttonpress() == 7) {
4862                         if(ctrl_down())
4863                                 mwindow->move_right(get_w());
4864                         else if(alt_down())
4865                                 mwindow->move_right(get_w() / 20);
4866                         else
4867                                 mwindow->move_right(get_w() / 5);
4868                 }
4869                 else {
4870                         switch(mwindow->edl->session->editing_mode) {
4871 // Test handles and resource boundaries and highlight a track
4872                         case EDITING_ARROW: {
4873                                 if( do_transitions(cursor_x, cursor_y,
4874                                                 1, new_cursor, update_cursor) ) break;
4875
4876                                 if( do_keyframes(cursor_x, cursor_y,
4877                                         0, get_buttonpress(), new_cursor,
4878                                         update_cursor, rerender) ) break;
4879 // Test edit boundaries
4880                                 if( do_edit_handles(cursor_x, cursor_y,
4881                                         1, rerender, update_overlay, new_cursor,
4882                                         update_cursor) ) break;
4883 // Test plugin boundaries
4884                                 if( do_plugin_handles(cursor_x, cursor_y,
4885                                         1, rerender, update_overlay, new_cursor,
4886                                         update_cursor) ) break;
4887
4888                                 if( do_edits(cursor_x, cursor_y, 1, 0,
4889                                         update_cursor, rerender, new_cursor,
4890                                         update_cursor) ) break;
4891
4892                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
4893                                         update_cursor, rerender) ) break;
4894
4895                                 if( test_resources(cursor_x, cursor_y) ) break;
4896
4897                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
4898
4899                                 result = 0;
4900                                 break; }
4901
4902 // Test handles only and select a region
4903                         case EDITING_IBEAM: {
4904                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4905 //printf("TrackCanvas::button_press_event %d\n", position);
4906
4907                                 if( do_transitions(cursor_x, cursor_y,
4908                                                 1, new_cursor, update_cursor)) break;
4909                                 if(do_keyframes(cursor_x, cursor_y,
4910                                         0, get_buttonpress(), new_cursor,
4911                                         update_cursor, rerender)) {
4912                                         update_overlay = 1;
4913                                         break;
4914                                 }
4915 // Test edit boundaries
4916                                 if( do_edit_handles(cursor_x, cursor_y,
4917                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
4918 // Test plugin boundaries
4919                                 if( do_plugin_handles(cursor_x, cursor_y,
4920                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
4921
4922                                 if( do_edits(cursor_x, cursor_y,
4923                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
4924
4925                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
4926
4927                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
4928 // Highlight selection
4929                                 if( get_buttonpress() != LEFT_BUTTON ) break;
4930                                 rerender = start_selection(position);
4931                                 mwindow->session->current_operation = SELECT_REGION;
4932                                 update_cursor = 1;
4933                                 break; }
4934                         }
4935                 }
4936
4937                 if( rerender ) {
4938                         gui->unlock_window();
4939                         mwindow->cwindow->update(1, 0, 0, 0, 1);
4940                         gui->lock_window("TrackCanvas::button_press_event 2");
4941 // Update faders
4942                         mwindow->update_plugin_guis();
4943                         gui->update_patchbay();
4944                 }
4945
4946                 if( update_overlay ) {
4947                         gui->draw_overlays(1);
4948                 }
4949                 if( update_cursor < 0 ) {
4950 // double_click edit
4951                         gui->swindow->update_selection();
4952                 }
4953                 if( update_cursor ) {
4954                         gui->update_timebar(0);
4955                         gui->hide_cursor(0);
4956                         gui->show_cursor(1);
4957                         gui->zoombar->update();
4958                         gui->flash_canvas(1);
4959                 }
4960         }
4961
4962         return result;
4963 }
4964
4965 int TrackCanvas::start_selection(double position)
4966 {
4967         int rerender = 0;
4968         position = mwindow->edl->align_to_frame(position, 1);
4969
4970
4971 // Extend a border
4972         if(shift_down())
4973         {
4974                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
4975                         mwindow->edl->local_session->get_selectionend(1)) / 2;
4976
4977                 if(position < midpoint)
4978                 {
4979                         mwindow->edl->local_session->set_selectionstart(position);
4980                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
4981 // Que the CWindow
4982                         rerender = 1;
4983                 }
4984                 else
4985                 {
4986                         mwindow->edl->local_session->set_selectionend(position);
4987                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
4988 // Don't que the CWindow for the end
4989                 }
4990         }
4991         else
4992 // Start a new selection
4993         {
4994 //printf("TrackCanvas::start_selection %f\n", position);
4995                 mwindow->edl->local_session->set_selectionstart(position);
4996                 mwindow->edl->local_session->set_selectionend(position);
4997                 selection_midpoint = position;
4998 // Que the CWindow
4999                 rerender = 1;
5000         }
5001
5002         return rerender;
5003 }
5004
5005 void TrackCanvas::end_edithandle_selection()
5006 {
5007         mwindow->modify_edithandles();
5008 }
5009
5010 void TrackCanvas::end_pluginhandle_selection()
5011 {
5012         mwindow->modify_pluginhandles();
5013 }
5014
5015
5016 double TrackCanvas::time_visible()
5017 {
5018         return (double)get_w() *
5019                 mwindow->edl->local_session->zoom_sample /
5020                 mwindow->edl->session->sample_rate;
5021 }
5022
5023
5024 void TrackCanvas::show_message(Auto *current, int show_curve_type, const char *fmt, ...)
5025 {
5026         char string[BCTEXTLEN];
5027         char *cp = string, *ep = cp + sizeof(string)-1;
5028         if( show_curve_type ) {
5029                 cp += snprintf(string, ep-cp, "%-8s ",
5030                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5031         }
5032         char string2[BCTEXTLEN];
5033         Units::totext(string2,
5034                 current->autos->track->from_units(current->position),
5035                 mwindow->edl->session->time_format,
5036                 mwindow->edl->session->sample_rate,
5037                 mwindow->edl->session->frame_rate,
5038                 mwindow->edl->session->frames_per_foot);
5039         cp += snprintf(cp, ep-cp, "%s", string2);
5040         va_list ap;
5041         va_start(ap, fmt);
5042         vsnprintf(cp, ep-cp, fmt, ap);
5043         va_end(ap);
5044         gui->show_message(string);
5045 }
5046
5047 // Patchbay* TrackCanvas::get_patchbay()
5048 // {
5049 //      if(pane->patchbay) return pane->patchbay;
5050 //      if(gui->total_panes() == 2 &&
5051 //              gui->pane[TOP_LEFT_PANE] &&
5052 //              gui->pane[TOP_RIGHT_PANE])
5053 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5054 //      if(gui->total_panes() == 4)
5055 //      {
5056 //              if(pane->number == TOP_RIGHT_PANE)
5057 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5058 //              else
5059 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5060 //      }
5061 //
5062 //      return 0;
5063 // }
5064
5065