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