cinelerra-5.1/cinelerra/trackcanvas.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2014 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "apatchgui.inc"
  23 #include "asset.h"
  24 #include "autoconf.h"
  25 #include "automation.h"
  26 #include "bcsignals.h"
  27 #include "bctimer.h"
  28 #include "clip.h"
  29 #include "bccolors.h"
  30 #include "cplayback.h"
  31 #include "cursors.h"
  32 #include "cwindowgui.h"
  33 #include "cwindow.h"
  34 #include "edithandles.h"
  35 #include "editpopup.h"
  36 #include "edits.h"
  37 #include "edl.h"
  38 #include "edlsession.h"
  39 #include "floatauto.h"
  40 #include "floatautos.h"
  41 #include "gwindowgui.h"
  42 #include "indexstate.h"
  43 #include "intauto.h"
  44 #include "intautos.h"
  45 #include "keyframe.h"
  46 #include "keyframepopup.h"
  47 #include "keyframes.h"
  48 #include "keys.h"
  49 #include "labels.h"
  50 #include "localsession.h"
  51 #include "mainclock.h"
  52 #include "maincursor.h"
  53 #include "mainsession.h"
  54 #include "mainundo.h"
  55 #include "maskautos.h"
  56 #include "mbuttons.h"
  57 #include "mtimebar.h"
  58 #include "mwindowgui.h"
  59 #include "mwindow.h"
  60 #include "panautos.h"
  61 #include "patchbay.h"
  62 #include "playbackengine.h"
  63 #include "playtransport.h"
  64 #include "plugin.h"
  65 #include "pluginpopup.h"
  66 #include "pluginserver.h"
  67 #include "pluginset.h"
  68 #include "plugintoggles.h"
  69 #include "preferences.h"
  70 #include "resourcepixmap.h"
  71 #include "resourcethread.h"
  72 #include "swindow.h"
  73 #include "theme.h"
  74 #include "trackcanvas.h"
  75 #include "tracking.h"
  76 #include "tracks.h"
  77 #include "transition.h"
  78 #include "transitionhandles.h"
  79 #include "transitionpopup.h"
  80 #include "transportque.h"
  81 #include "vframe.h"
  82 #include "vpatchgui.inc"
  83 #include "zoombar.h"
  84
  85 #include <string.h>
  86
  87 //#define PIXMAP_AGE -5
  88 #define PIXMAP_AGE -32
  89
  90 TrackCanvas::TrackCanvas(MWindow *mwindow,
  91         TimelinePane *pane,
  92         int x,
  93         int y,
  94         int w,
  95         int h)
  96  : BC_SubWindow(x,
  97         y,
  98         w,
  99         h)
 100 {
 101         this->mwindow = mwindow;
 102         this->gui = mwindow->gui;
 103         this->pane = pane;
 104
 105         selection_midpoint = 0;
 106         drag_scroll = 0;
 107         active = 0;
 108         temp_picon = 0;
 109         resource_timer = new Timer;
 110         render_timer = new Timer;
 111         hourglass_enabled = 0;
 112         timebar_position = -1;
 113         snapped = 0;
 114 }
 115
 116 TrackCanvas::~TrackCanvas()
 117 {
 118 //      delete transition_handles;
 119         delete edit_handles;
 120         delete keyframe_pixmap;
 121         delete camerakeyframe_pixmap;
 122         delete modekeyframe_pixmap;
 123         delete pankeyframe_pixmap;
 124         delete projectorkeyframe_pixmap;
 125         delete maskkeyframe_pixmap;
 126         delete background_pixmap;
 127         if(temp_picon) delete temp_picon;
 128         delete render_timer;
 129         delete resource_timer;
 130 }
 131
 132 void TrackCanvas::create_objects()
 133 {
 134         background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 135 //      transition_handles = new TransitionHandles(mwindow, this);
 136         edit_handles = new EditHandles(mwindow, this);
 137         keyframe_pixmap = new BC_Pixmap(this, mwindow->theme->keyframe_data, PIXMAP_ALPHA);
 138         camerakeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->camerakeyframe_data, PIXMAP_ALPHA);
 139         modekeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->modekeyframe_data, PIXMAP_ALPHA);
 140         pankeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->pankeyframe_data, PIXMAP_ALPHA);
 141         projectorkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->projectorkeyframe_data, PIXMAP_ALPHA);
 142         maskkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->maskkeyframe_data, PIXMAP_ALPHA);
 143         draw();
 144         update_cursor(0);
 145         flash(0);
 146 }
 147
 148 void TrackCanvas::resize_event()
 149 {
 150 //printf("TrackCanvas::resize_event 1\n");
 151         draw(0, 0);
 152         flash(0);
 153 //printf("TrackCanvas::resize_event 2\n");
 154 }
 155
 156 int TrackCanvas::keypress_event()
 157 {
 158         return 0;
 159 }
 160
 161 int TrackCanvas::cursor_leave_event()
 162 {
 163 // Because drag motion calls get_cursor_over_window we can be sure that
 164 // all highlights get deleted now.
 165 // This ended up blocking keyboard input from the drag operations.
 166         if( timebar_position >= 0 )
 167         {
 168                 timebar_position = -1;
 169                 if( pane->timebar )
 170                         pane->timebar->update(1);
 171         }
 172
 173         return 0;
 174 //      return drag_motion();
 175 }
 176
 177 int TrackCanvas::drag_motion_event()
 178 {
 179         return gui->drag_motion();
 180 }
 181
 182 int TrackCanvas::drag_motion(Track **over_track,
 183         Edit **over_edit,
 184         PluginSet **over_pluginset,
 185         Plugin **over_plugin)
 186 {
 187         int cursor_x = get_relative_cursor_x();
 188         int cursor_y = get_relative_cursor_y();
 189
 190         if( get_cursor_over_window() &&
 191                 cursor_x >= 0 && cursor_y >= 0 &&
 192                 cursor_x < get_w() && cursor_y < get_h() )
 193         {
 194 //printf("TrackCanvas::drag_motion %d %d\n", __LINE__, pane->number);
 195 // Find the edit and track the cursor is over
 196                 for(Track *track = mwindow->edl->tracks->first; track; track = track->next)
 197                 {
 198                         int64_t track_x, track_y, track_w, track_h;
 199                         track_dimensions(track, track_x, track_y, track_w, track_h);
 200
 201                         if(cursor_y >= track_y &&
 202                                 cursor_y < track_y + track_h)
 203                         {
 204                                 *over_track = track;
 205                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
 206                                 {
 207                                         int64_t edit_x, edit_y, edit_w, edit_h;
 208                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 209                                         if( cursor_y < edit_y || cursor_y >= edit_y + edit_h ) continue;
 210                                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w ) {
 211                                                 *over_edit = edit;
 212                                                 break;
 213                                         }
 214                                         if( edit != track->edits->last ) continue;
 215                                         if( mwindow->session->current_operation != DRAG_ATRANSITION &&
 216                                             mwindow->session->current_operation != DRAG_VTRANSITION ) continue;
 217                                         if( !edit->silence() ) {
 218                                                 // add silence to allow drag transition past last edit
 219                                                 //  will be deleted by Edits::optimize if not used
 220                                                 double length = mwindow->edl->session->default_transition_length;
 221                                                 int64_t start = edit->startproject+edit->length;
 222                                                 int64_t units = track->to_units(length, 1);
 223                                                 track->edits->create_silence(start, start+units);
 224                                                 continue;
 225                                         }
 226                                         if( cursor_x >= edit_x ) { *over_edit = edit; break; }
 227                                 }
 228
 229                                 for(int i = 0; i < track->plugin_set.total; i++)
 230                                 {
 231                                         PluginSet *pluginset = track->plugin_set.values[i];
 232                                         for(Plugin *plugin = (Plugin*)pluginset->first;
 233                                                 plugin;
 234                                                 plugin = (Plugin*)plugin->next)
 235                                         {
 236                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
 237                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
 238
 239                                                 if(cursor_y >= plugin_y &&
 240                                                         cursor_y < plugin_y + plugin_h)
 241                                                 {
 242                                                         *over_pluginset = plugin->plugin_set;
 243
 244                                                         if(cursor_x >= plugin_x &&
 245                                                                 cursor_x < plugin_x + plugin_w)
 246                                                         {
 247                                                                 *over_plugin = plugin;
 248                                                                 break;
 249                                                         }
 250                                                 }
 251                                         }
 252                                 }
 253                                 break;
 254                         }
 255                 }
 256         }
 257
 258         if( !*over_track )
 259                 *over_track = pane->over_patchbay();
 260
 261         return 0;
 262 }
 263
 264
 265 int TrackCanvas::drag_stop_event()
 266 {
 267         int result = gui->drag_stop();
 268         if( !result && mwindow->session->current_operation ) {
 269                 mwindow->session->current_operation = NO_OPERATION;
 270                 drag_scroll = 0;
 271         }
 272         return result;
 273 }
 274
 275 int TrackCanvas::drag_stop(int *redraw)
 276 {
 277         int result = 0;
 278         int insertion  = 0;
 279         int over_window = 0;
 280         int cursor_x = -1, cursor_y = -1;
 281
 282         if( get_cursor_over_window() ) {
 283                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
 284                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
 285                         over_window = 1;
 286                 else {
 287                         Track *track = pane->over_patchbay();
 288                         if( track && mwindow->session->track_highlighted == track )
 289                                 over_window = 1;
 290                 }
 291         }
 292
 293         if( over_window ) {
 294                 switch(mwindow->session->current_operation) {
 295                 case DRAG_VTRANSITION:
 296                 case DRAG_ATRANSITION:
 297                         if(mwindow->session->edit_highlighted) {
 298                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
 299                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 300                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
 301                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
 302                                         mwindow->session->current_operation = NO_OPERATION;
 303                                         mwindow->paste_transition();
 304                                         result = 1;
 305                                 }
 306                         }
 307                         *redraw = 1;
 308                         break;
 309
 310 // Behavior for dragged plugins is limited by the fact that a shared plugin
 311 // can only refer to a standalone plugin that exists in the same position in
 312 // time.  Dragging a plugin from one point in time to another can't produce
 313 // a shared plugin to the original plugin.  In this case we relocate the
 314 // plugin instead of sharing it.
 315                 case DRAG_AEFFECT_COPY:
 316                 case DRAG_VEFFECT_COPY:
 317                         if( mwindow->session->track_highlighted &&
 318                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
 319                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 320                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
 321                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 322                                 mwindow->session->current_operation = NO_OPERATION;
 323
 324                                 int64_t drop_position = -1;
 325                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
 326                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
 327                                 Track *hi_track = mwindow->session->track_highlighted;
 328
 329 // Insert shared plugin in source
 330 // Move source to different location
 331                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
 332 //printf("TrackCanvas::drag_stop 6\n");
 333                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
 334                                         if( drop_position < 0 ) {
 335                                                 result = 1;
 336                                                 break;          // Do not do anything
 337                                         }
 338
 339                                         Track *track = mwindow->session->track_highlighted;
 340                                         drop_position = track->frame_align(drop_position, 0);
 341                                         mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
 342                                         result = 1;
 343                                 }
 344                                 else if( hi_track ) {
 345 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
 346                                         Edit *hi_edit = mwindow->session->edit_highlighted;
 347                                         drop_position = hi_edit ? hi_edit->startproject : 0;
 348                                         if( drop_position < 0 ) {
 349                                                 result = 1;
 350                                                 break;          // Do not do anything
 351                                         }
 352
 353                                         Track *track = mwindow->session->track_highlighted;
 354                                         drop_position = track->frame_align(drop_position, 0);
 355                                         mwindow->move_effect(drag_plugin, hi_track, drop_position);
 356                                         result = 1;
 357                                 }
 358                         }
 359                         break;
 360
 361                 case DRAG_AEFFECT:
 362                 case DRAG_VEFFECT:
 363                         if( mwindow->session->track_highlighted &&
 364                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
 365                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
 366                              (mwindow->session->current_operation == DRAG_VEFFECT &&
 367                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
 368 // Drop all the effects
 369                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
 370                                 Track *track = mwindow->session->track_highlighted;
 371                                 double start = 0;
 372                                 double length = track->get_length();
 373
 374                                 if(mwindow->session->plugin_highlighted) {
 375                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
 376                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
 377                                         if(length <= 0) length = track->get_length();
 378                                 }
 379                                 else if(mwindow->session->pluginset_highlighted) {
 380                                                 start = track->from_units(plugin_set->length());
 381                                         length = track->get_length() - start;
 382                                         if(length <= 0) length = track->get_length();
 383                                 }
 384                                 else if(mwindow->edl->local_session->get_selectionend() >
 385                                         mwindow->edl->local_session->get_selectionstart()) {
 386                                         start = mwindow->edl->local_session->get_selectionstart();
 387                                         length = mwindow->edl->local_session->get_selectionend() -
 388                                                 mwindow->edl->local_session->get_selectionstart();
 389                                 }
 390 // Move to a point between two edits
 391                                 else if(mwindow->session->edit_highlighted) {
 392                                         start = mwindow->session->track_highlighted->from_units(
 393                                                 mwindow->session->edit_highlighted->startproject);
 394                                         length = mwindow->session->track_highlighted->from_units(
 395                                                 mwindow->session->edit_highlighted->length);
 396                                 }
 397                                 start = mwindow->edl->align_to_frame(start, 0);
 398                                 mwindow->insert_effects_canvas(start, length);
 399                                 *redraw = 1;
 400                         }
 401                         if( mwindow->session->track_highlighted )
 402                                 result = 1;  // we have to cleanup
 403                         break;
 404
 405                 case DRAG_ASSET:
 406                         if(mwindow->session->track_highlighted) {
 407                                 double asset_duration = 0;
 408                                 int64_t asset_length_units = 0;
 409
 410                                 if(mwindow->session->current_operation == DRAG_ASSET &&
 411                                         mwindow->session->drag_assets->total) {
 412                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
 413                                         // we use video if we are over video and audio if we are over audio
 414                                         if( indexable->have_video() &&
 415                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
 416                                                 // Images have length -1
 417                                                 int64_t video_length = indexable->get_video_frames();
 418                                                 if (video_length < 0) {
 419                                                         if(mwindow->edl->session->si_useduration)
 420                                                                 video_length = mwindow->edl->session->si_duration;
 421                                                         else
 422                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ;
 423                                                 }
 424                                                 asset_duration = video_length / indexable->get_frame_rate();
 425                                         }
 426                                         else if( indexable->have_audio() &&
 427                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
 428                                                 int64_t audio_length = indexable->get_audio_samples();
 429                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
 430                                         }
 431                                         else {
 432                                                 result = 1;
 433                                                 break;  // Do not do anything
 434                                         }
 435                                 }
 436                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
 437                                          mwindow->session->drag_clips->total ) {
 438                                         EDL *clip = mwindow->session->drag_clips->values[0];
 439                                         asset_duration = clip->tracks->total_length();
 440                                 }
 441                                 else {
 442                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
 443                                 }
 444
 445                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
 446                                 int64_t drop_position = drop_edit_position (&insertion, NULL, asset_length_units);
 447                                 if( drop_position < 0 ) {
 448                                         result = 1;
 449                                         break;          // Do not do anything
 450                                 }
 451
 452                                 Track *track = mwindow->session->track_highlighted;
 453                                 double track_position = track->from_units(drop_position);
 454                                 track_position = mwindow->edl->align_to_frame(track_position, 0);
 455
 456 //                              if (!insertion) {
 457 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
 458 //                                      // Unfortunately, this is _a lot_ of work to do right
 459 //                                      printf("Problematic insertion\n");
 460 //                                      mwindow->edl->tracks->clear(track_position,
 461 //                                              track_position + asset_duration, 0);
 462 //                              }
 463                                 mwindow->paste_assets(track_position, track, !insertion);
 464                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
 465                         }
 466                         break;
 467
 468                 case DRAG_EDIT:
 469                         mwindow->session->current_operation = NO_OPERATION;
 470                         if(mwindow->session->track_highlighted) {
 471                                 if( mwindow->session->track_highlighted->data_type ==
 472                                         mwindow->session->drag_edit->track->data_type) {
 473                                         int64_t drop_position = drop_edit_position(&insertion,
 474                                                         mwindow->session->drag_edit,
 475                                                         mwindow->session->drag_edit->length);
 476                                         if( drop_position < 0 ) {
 477                                                 result = 1;
 478                                                 break;          // Do not do anything
 479                                         }
 480                                         Track *track = mwindow->session->track_highlighted;
 481                                         double track_position = track->from_units(drop_position);
 482                                         track_position = mwindow->edl->align_to_frame(track_position, 0);
 483                                         mwindow->move_edits(mwindow->session->drag_edits,
 484                                                         track, track_position, !insertion);
 485                                 }
 486
 487                                 result = 1;
 488                         }
 489                         break;
 490                 }
 491         }
 492
 493         return result;
 494 }
 495
 496 int TrackCanvas::drag_start_event()
 497 {
 498         int result = 0;
 499         int redraw = 0;
 500         int rerender = 0;
 501         int new_cursor, update_cursor;
 502
 503         if(mwindow->session->current_operation != NO_OPERATION) return 0;
 504
 505         if(is_event_win()) {
 506                 if(do_plugins(get_drag_x(), get_drag_y(),
 507                                 1, 0, redraw, rerender)) {
 508                         result = 1;
 509                 }
 510                 else if(do_edits(get_drag_x(), get_drag_y(),
 511                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
 512                         result = 1;
 513                 }
 514         }
 515
 516         return result;
 517 }
 518
 519 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
 520 {
 521         // get the canvas/track position
 522         Track *track = mwindow->session->track_highlighted;
 523         int cursor_x = get_relative_cursor_x();
 524         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 525         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 526         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 527         if( position <= 0 ) {
 528                 *is_insertion = 1;
 529                 return 0;
 530         }
 531         double cursor_position = position;
 532         int64_t drop_position = track->to_units(cursor_position, 1);
 533         if( moved_edit ) { // relative cursor position depends upon drop point
 534                 double moved_edit_start = moved_edit->track->from_units(moved_edit->startproject);
 535                 position -= mwindow->session->drag_position - moved_edit_start;
 536         }
 537         int64_t edit_position = track->to_units(position, 1);
 538         int64_t grab_position = edit_position;
 539         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
 540                 grab_position -= moved_edit_length / 2;
 541         Edit *last_edit = track->edits->last;
 542         if( !last_edit || edit_position >= (last_edit->startproject+last_edit->length) ) {
 543                 *is_insertion = 0;
 544                 return grab_position;
 545         }
 546
 547         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 548         Edit *next_edit = track->edits->first;
 549         while( next_edit ) {
 550                 Edit *edit = next_edit;  next_edit = (Edit *)edit->next;
 551                 int64_t edit_start = edit->startproject;
 552                 int64_t edit_end = edit_start + edit->length;
 553                 double edit_start_pos = edit->track->from_units(edit_start);
 554                 if( (fabs(edit_start_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 555                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
 556                         return edit_start;
 557                 }
 558                 double edit_end_pos = edit->track->from_units(edit_end);
 559                 if( (fabs(edit_end_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
 560                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
 561                         return edit_end;
 562                 }
 563                 if( edit != moved_edit && !edit->silence() )
 564                         drop_start = edit_end; // reset drop zone
 565                 if( next_edit ) {
 566                         if( next_edit == moved_edit || next_edit->silence() ) continue;
 567                         drop_end = edit_end;
 568                 }
 569                 else
 570                         drop_end = INT64_MAX;
 571                 if( edit_position >= drop_start &&
 572                     edit_position+moved_edit_length < drop_end ) {
 573                         *is_insertion = 0; // fits in the zone
 574                         return edit_position;
 575                 }
 576                 if( drop_position < drop_end ) { // drop in the zone
 577                         if( (drop_end - drop_start) >= moved_edit_length ) {
 578                                 *is_insertion = 0; // fits in the zone, but over the edge
 579                                 int64_t dx0 = llabs(drop_position - drop_start);
 580                                 int64_t dx1 = llabs(drop_position - drop_end);
 581                                 return dx0 < dx1 ? drop_start : drop_end - moved_edit_length;
 582                         }
 583                         *is_insertion = 1;
 584                         int64_t edit_center = (edit_start + edit_end) / 2;
 585                         return position < edit_center ? drop_start : drop_end;
 586                 }
 587         }
 588
 589         *is_insertion = 0;
 590         return -1;
 591 }
 592
 593 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
 594 {
 595         // get the canvas/track position
 596         Track *track = plugin_set->track;
 597         double moved_plugin_length = moved_plugin->track->from_units(moved_plugin->length);
 598         int64_t track_plugin_length = track->to_units(moved_plugin_length, 0);
 599         int cursor_x = get_relative_cursor_x();
 600         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
 601         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
 602         double position = mwindow->edl->align_to_frame(cur_pos, 1);
 603         if( position <= 0 ) return 0;
 604         int64_t drop_position = track->to_units(position, 1);
 605         Plugin *last_plugin = (Plugin *)plugin_set->last;
 606         if( !last_plugin ) return drop_position;
 607         double plugin_set_end = last_plugin->track->from_units(last_plugin->startproject+last_plugin->length);
 608         if( position >= plugin_set_end ) return drop_position;
 609         double moved_plugin_start = moved_plugin->track->from_units(moved_plugin->startproject);
 610         position -= mwindow->session->drag_position - moved_plugin_start;
 611         int64_t plugin_position = track->to_units(position, 1);
 612
 613         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
 614         Plugin *next_plugin = (Plugin *)plugin_set->first;
 615         while( next_plugin ) {
 616                 Plugin *plugin = next_plugin;  next_plugin = (Plugin *)plugin->next;
 617                 int64_t plugin_start = plugin->startproject;
 618                 int64_t plugin_end = plugin_start + plugin->length;
 619                 double plugin_end_pos = plugin->track->from_units(plugin_end);
 620                 int64_t track_plugin_end = track->to_units(plugin_end_pos, 0);
 621                 if( plugin != moved_plugin && !plugin->silence() )
 622                         drop_start = track_plugin_end;
 623                 if( next_plugin ) {
 624                         if( next_plugin == moved_plugin || next_plugin->silence() ) continue;
 625                         drop_end = track_plugin_end;
 626                 }
 627                 else
 628                         drop_end = INT64_MAX;
 629                 if( plugin_position >= drop_start && // fits in the zone
 630                     plugin_position+track_plugin_length < drop_end ) {
 631                         return plugin_position;
 632                 }
 633                 if( drop_position < drop_end ) { // drop in the zone
 634                         if( (drop_end - drop_start) >= track_plugin_length ) {
 635                                 int64_t dx0 = llabs(drop_position - drop_start);
 636                                 int64_t dx1 = llabs(drop_position - drop_end);
 637                                 return dx0 < dx1 ? drop_start : drop_end - track_plugin_length;
 638                         }
 639                 }
 640         }
 641
 642         return -1;
 643 }
 644
 645 void TrackCanvas::draw(int mode, int hide_cursor)
 646 {
 647         const int debug = 0;
 648
 649
 650 // Swap pixmap layers
 651         if(get_w() != background_pixmap->get_w() ||
 652                 get_h() != background_pixmap->get_h())
 653         {
 654                 delete background_pixmap;
 655                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 656         }
 657
 658 // Cursor disappears after resize when this is called.
 659 // Cursor doesn't redraw after editing when this isn't called.
 660         if(pane->cursor && hide_cursor) pane->cursor->hide();
 661         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
 662
 663         if(debug) PRINT_TRACE
 664         draw_resources(mode);
 665
 666         if(debug) PRINT_TRACE
 667         draw_overlays();
 668         if(debug) PRINT_TRACE
 669 }
 670
 671 void TrackCanvas::update_cursor(int flush)
 672 {
 673         switch(mwindow->edl->session->editing_mode)
 674         {
 675                 case EDITING_ARROW: set_cursor(ARROW_CURSOR, 0, flush); break;
 676                 case EDITING_IBEAM: set_cursor(IBEAM_CURSOR, 0, flush); break;
 677         }
 678 }
 679
 680
 681 void TrackCanvas::test_timer()
 682 {
 683         if(resource_timer->get_difference() > 1000 &&
 684                 !hourglass_enabled)
 685         {
 686                 start_hourglass();
 687                 hourglass_enabled = 1;
 688         }
 689 }
 690
 691
 692 void TrackCanvas::draw_indexes(Indexable *indexable)
 693 {
 694         IndexState *index_state = indexable->index_state;
 695 // Don't redraw raw samples
 696         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
 697                 return;
 698         draw_resources(0, 1, indexable);
 699         draw_overlays();
 700         flash(0);
 701 }
 702
 703 void TrackCanvas::draw_resources(int mode,
 704         int indexes_only,
 705         Indexable *indexable)
 706 {
 707         const int debug = 0;
 708
 709         if(debug) PRINT_TRACE
 710
 711 // can't stop thread here, because this is called for every pane
 712 //      if(mode != IGNORE_THREAD && !indexes_only)
 713 //              gui->resource_thread->stop_draw(!indexes_only);
 714
 715         if(mode != IGNORE_THREAD &&
 716                 !indexes_only &&
 717                 !gui->resource_thread->interrupted)
 718         {
 719                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
 720                         __LINE__);
 721
 722                 BC_Signals::dump_stack();
 723         }
 724
 725         if(debug) PRINT_TRACE
 726
 727         resource_timer->update();
 728
 729 // Age resource pixmaps for deletion
 730         if(!indexes_only)
 731                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 732                         gui->resource_pixmaps.values[i]->visible--;
 733
 734         if(mode == FORCE_REDRAW)
 735                 gui->resource_pixmaps.remove_all_objects();
 736
 737         if(debug) PRINT_TRACE
 738
 739 // Search every edit
 740         for(Track *current = mwindow->edl->tracks->first;
 741                 current;
 742                 current = NEXT)
 743         {
 744                 if(debug) PRINT_TRACE
 745                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
 746                 {
 747                         if(debug) PRINT_TRACE
 748                         if( current->data_type != TRACK_SUBTITLE )
 749                                 if(!edit->asset && !edit->nested_edl) continue;
 750                         if(indexes_only)
 751                         {
 752                                 if(edit->track->data_type != TRACK_AUDIO) continue;
 753
 754                                 if(edit->nested_edl &&
 755                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
 756
 757                                 if(edit->asset &&
 758                                         strcmp(indexable->path, edit->asset->path)) continue;
 759                         }
 760
 761                         if(debug) PRINT_TRACE
 762
 763                         int64_t edit_x, edit_y, edit_w, edit_h;
 764                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 765
 766 // Edit is visible
 767                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
 768                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
 769                         {
 770                                 int64_t pixmap_x, pixmap_w, pixmap_h;
 771                                 if(debug) PRINT_TRACE
 772
 773 // Search for existing pixmap containing edit
 774                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 775                                 {
 776                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
 777 // Same pointer can be different edit if editing took place
 778                                         if(pixmap->edit_id == edit->id &&
 779                                                 pixmap->pane_number == pane->number)
 780                                         {
 781                                                 pixmap->visible = 1;
 782                                                 break;
 783                                         }
 784                                 }
 785                                 if(debug) PRINT_TRACE
 786
 787 // Get new size, offset of pixmap needed
 788                                 get_pixmap_size(edit,
 789                                         edit_x,
 790                                         edit_w,
 791                                         pixmap_x,
 792                                         pixmap_w,
 793                                         pixmap_h);
 794                                 if(debug) PRINT_TRACE
 795
 796 // Draw new data
 797                                 if(pixmap_w && pixmap_h)
 798                                 {
 799 // Create pixmap if it doesn't exist
 800                                         ResourcePixmap* pixmap = create_pixmap(edit, edit_x,
 801                                                 pixmap_x, pixmap_w, pixmap_h);
 802 // Resize it if it's bigger
 803                                         if( pixmap_w > pixmap->pixmap_w ||
 804                                             pixmap_h > pixmap->pixmap_h)
 805                                                 pixmap->resize(pixmap_w, pixmap_h);
 806                                         pixmap->update_settings(edit, edit_x, edit_w,
 807                                                 pixmap_x, pixmap_w, pixmap_h);
 808 // Draw data
 809                                         if( current->show_assets() )
 810                                                 pixmap->draw_data(this,
 811                                                         edit, edit_x, edit_w,
 812                                                         pixmap_x, pixmap_w, pixmap_h,
 813                                                         mode, indexes_only);
 814                                         else {
 815                                                 set_bg_color(BLACK);
 816                                                 clear_box(0,0, pixmap_w,pixmap_h, pixmap);
 817                                         }
 818 // Draw title
 819                                         if( current->show_titles() )
 820                                                 pixmap->draw_title(this,
 821                                                         edit, edit_x, edit_w,
 822                                                         pixmap_x, pixmap_w);
 823 // Resize it if it's smaller
 824                                         if(pixmap_w < pixmap->pixmap_w ||
 825                                                 pixmap_h < pixmap->pixmap_h)
 826                                                 pixmap->resize(pixmap_w, pixmap_h);
 827
 828 // Copy pixmap to background canvas
 829                                         background_pixmap->draw_pixmap(pixmap,
 830                                                 pixmap->pixmap_x,
 831                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
 832                                                 pixmap->pixmap_w,
 833                                                 edit_h);
 834                                 }
 835                                 if(debug) PRINT_TRACE
 836
 837                         }
 838                 }
 839         }
 840
 841
 842 // Delete unused pixmaps
 843         if(debug) PRINT_TRACE
 844         if(!indexes_only)
 845                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 846                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 847                         {
 848 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 849                                 delete gui->resource_pixmaps.values[i];
 850                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 851                         }
 852         if(debug) PRINT_TRACE
 853
 854         if(hourglass_enabled)
 855         {
 856                 stop_hourglass();
 857                 hourglass_enabled = 0;
 858         }
 859         if(debug) PRINT_TRACE
 860
 861 // can't stop thread here, because this is called for every pane
 862 //      if(mode != IGNORE_THREAD && !indexes_only)
 863 //              gui->resource_thread->start_draw();
 864         if(debug) PRINT_TRACE
 865
 866
 867 }
 868
 869 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 870         int64_t edit_x,
 871         int64_t pixmap_x,
 872         int64_t pixmap_w,
 873         int64_t pixmap_h)
 874 {
 875         ResourcePixmap *result = 0;
 876
 877         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 878         {
 879 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 880                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 881                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 882                 {
 883                         result = gui->resource_pixmaps.values[i];
 884                         break;
 885                 }
 886         }
 887
 888         if(!result)
 889         {
 890 //SET_TRACE
 891                 result = new ResourcePixmap(mwindow,
 892                         gui,
 893                         edit,
 894                         pane->number,
 895                         pixmap_w,
 896                         pixmap_h);
 897 //SET_TRACE
 898                 gui->resource_pixmaps.append(result);
 899         }
 900
 901 //      result->resize(pixmap_w, pixmap_h);
 902         return result;
 903 }
 904
 905 void TrackCanvas::get_pixmap_size(Edit *edit,
 906         int64_t edit_x,
 907         int64_t edit_w,
 908         int64_t &pixmap_x,
 909         int64_t &pixmap_w,
 910         int64_t &pixmap_h)
 911 {
 912
 913 // Align x on frame boundaries
 914
 915
 916 //      switch(edit->edits->track->data_type)
 917 //      {
 918 //              case TRACK_AUDIO:
 919
 920                         pixmap_x = edit_x;
 921                         pixmap_w = edit_w;
 922                         if(pixmap_x < 0)
 923                         {
 924                                 pixmap_w -= -edit_x;
 925                                 pixmap_x = 0;
 926                         }
 927
 928                         if(pixmap_x + pixmap_w > get_w())
 929                         {
 930                                 pixmap_w = get_w() - pixmap_x;
 931                         }
 932
 933 //                      break;
 934 //
 935 //              case TRACK_VIDEO:
 936 //              {
 937 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 938 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 939 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 940 //                      int64_t pixmap_x1 = edit_x;
 941 //                      int64_t pixmap_x2 = edit_x + edit_w;
 942 //
 943 //                      if(pixmap_x1 < 0)
 944 //                      {
 945 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
 946 //                                      pixel_increment +
 947 //                                      edit_x;
 948 //                      }
 949 //
 950 //                      if(pixmap_x2 > get_w())
 951 //                      {
 952 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
 953 //                                      pixel_increment +
 954 //                                      edit_x;
 955 //                      }
 956 //                      pixmap_x = pixmap_x1;
 957 //                      pixmap_w = pixmap_x2 - pixmap_x1;
 958 //                      break;
 959 //              }
 960 //      }
 961
 962         pixmap_h = mwindow->edl->local_session->zoom_track;
 963         Track *track = edit->edits->track;
 964         if( track->show_titles() )
 965                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
 966 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
 967 }
 968
 969 void TrackCanvas::edit_dimensions(Edit *edit,
 970         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
 971 {
 972         x = Units::round(edit->track->from_units(edit->startproject) *
 973                         mwindow->edl->session->sample_rate /
 974                         mwindow->edl->local_session->zoom_sample -
 975                         mwindow->edl->local_session->view_start[pane->number]);
 976
 977         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
 978
 979 // Method for calculating w so when edits are together we never get off by one error due to rounding
 980         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
 981                         mwindow->edl->session->sample_rate /
 982                         mwindow->edl->local_session->zoom_sample -
 983                         mwindow->edl->local_session->view_start[pane->number]);
 984         w = x_next - x;
 985
 986         int edit_h = 0;
 987         if( edit->track->show_titles() )
 988                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
 989         if( edit->track->show_assets() )
 990                 edit_h += resource_h();
 991         h = edit_h;
 992 }
 993
 994 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
 995 {
 996         x = 0;
 997         w = get_w();
 998         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
 999         h = track->vertical_span(mwindow->theme);
1000 }
1001
1002
1003 void TrackCanvas::draw_paste_destination()
1004 {
1005         //int cursor_x = get_relative_cursor_x();
1006         //int cursor_y = get_relative_cursor_y();
1007         int current_atrack = 0;
1008         int current_vtrack = 0;
1009         int current_aedit = 0;
1010         int current_vedit = 0;
1011         int64_t w = 0;
1012         int64_t x;
1013         double position;
1014         int insertion  = 0;
1015
1016 //if(pane->number == BOTTOM_RIGHT_PANE)
1017 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1018
1019         if((mwindow->session->current_operation == DRAG_ASSET &&
1020                         (mwindow->session->drag_assets->total ||
1021                         mwindow->session->drag_clips->total)) ||
1022                 (mwindow->session->current_operation == DRAG_EDIT &&
1023                         mwindow->session->drag_edits->total)) {
1024                 Indexable *indexable = 0;
1025                 EDL *clip = 0;
1026                 //int draw_box = 0;
1027
1028                 if(mwindow->session->current_operation == DRAG_ASSET &&
1029                         mwindow->session->drag_assets->size())
1030                         indexable = mwindow->session->drag_assets->get(0);
1031
1032                 if(mwindow->session->current_operation == DRAG_ASSET &&
1033                         mwindow->session->drag_clips->size())
1034                         clip = mwindow->session->drag_clips->get(0);
1035
1036                 int has_audio = 0, has_video = 0;
1037                 double paste_audio_length = 0, paste_video_length = 0;
1038                 double paste_audio_position = -1, paste_video_position = -1;
1039
1040                 if( indexable ) {
1041                         has_audio = indexable->have_audio();
1042                         paste_audio_length = !has_audio ? 0 :
1043                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1044                         has_video = indexable->have_video();
1045                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1046                         // Images have length -1
1047                         if( asset && asset->video_data && asset->video_length < 0 ) {
1048                                 paste_video_length = mwindow->edl->session->si_useduration ?
1049                                         mwindow->edl->session->si_duration / asset->frame_rate :
1050                                         1.0 / asset->frame_rate ;  // 1 frame
1051                         }
1052                         else
1053                                 paste_video_length = !has_video ? 0 :
1054                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1055                 }
1056
1057                 if( clip ) {
1058                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1059                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1060                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1061                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1062                 }
1063
1064 // 'Align cursor on frame' lengths calculations
1065                 if( mwindow->edl->session->cursor_on_frames ) {
1066                         double fps = mwindow->edl->session->frame_rate;
1067                         double aud = floor(paste_audio_length * fps) / fps;
1068                         double vid = floor(paste_video_length * fps) / fps;
1069                         double length = has_video && has_audio ?
1070                                         aud < vid ? aud : vid :
1071                                 has_video ? vid :
1072                                 has_audio ? aud : 0;
1073                         paste_video_length = paste_audio_length = length;
1074                 }
1075
1076                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1077                         int64_t length = 0;
1078                         switch( mwindow->session->track_highlighted->data_type ) {
1079                         case TRACK_VIDEO: length = paste_video_length;  break;
1080                         case TRACK_AUDIO: length = paste_audio_length;  break;
1081                         }
1082                         int64_t asset_length = mwindow->session->track_highlighted->
1083                                 to_units(length, 1);
1084                         paste_audio_position = mwindow->session->track_highlighted->
1085                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1086                 }
1087                 if( has_video ) {
1088                         int64_t asset_length = mwindow->session->track_highlighted->
1089                                 to_units(paste_video_length, 1);
1090                         paste_video_position = mwindow->session->track_highlighted->
1091                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1092                 }
1093
1094 // Get destination track
1095                 for(Track *dest = mwindow->session->track_highlighted;
1096                         dest;
1097                         dest = dest->next) {
1098                         if(dest->record) {
1099 // Get source width in pixels
1100                                 w = -1;
1101 // Use start of highlighted edit
1102                                 if(mwindow->session->edit_highlighted) {
1103                                         position = mwindow->session->track_highlighted->from_units(
1104                                                 mwindow->session->edit_highlighted->startproject);
1105                                 }
1106                                 else {
1107 // Use end of highlighted track, disregarding effects
1108                                         position = mwindow->session->track_highlighted->from_units(
1109                                                 mwindow->session->track_highlighted->edits->length());
1110                                 }
1111
1112 // Get the x coordinate
1113                                 x = Units::to_int64(position *
1114                                         mwindow->edl->session->sample_rate /
1115                                         mwindow->edl->local_session->zoom_sample) -
1116                                         mwindow->edl->local_session->view_start[pane->number];
1117
1118                                 double paste_position = -1.;
1119                                 if(dest->data_type == TRACK_AUDIO) {
1120                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1121 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1122                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1123                                                         indexable->get_sample_rate() *
1124                                                         mwindow->edl->session->sample_rate /
1125                                                         mwindow->edl->local_session->zoom_sample);
1126                                                 paste_position = paste_audio_position;
1127                                         }
1128                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1129                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1130                                                         mwindow->edl->session->sample_rate /
1131                                                         mwindow->edl->local_session->zoom_sample);
1132                                                 paste_position = paste_audio_position;
1133 //printf("draw_paste_destination %d\n", x);
1134                                         }
1135                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1136                                                 current_aedit < mwindow->session->drag_edits->total) {
1137                                                 Edit *edit;
1138                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1139                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1140                                                         current_aedit++;
1141
1142                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1143                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1144                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1145                                                         paste_position = mwindow->session->track_highlighted->
1146                                                                 from_units(drop_edit_position(&insertion,
1147                                                                         mwindow->session->drag_edit,
1148                                                                         mwindow->session->drag_edit->length));
1149                                                         current_aedit++;
1150                                                 }
1151                                         }
1152                                         if( paste_position >= 0 ) {
1153                                                 position = paste_position;
1154                                                 current_atrack++;
1155                                                 //draw_box = 1;
1156                                         }
1157                                         else
1158                                                 w = -1;
1159                                 }
1160                                 else if(dest->data_type == TRACK_VIDEO) {
1161 //printf("draw_paste_destination 1\n");
1162                                         if(indexable && current_vtrack < indexable->get_video_layers())
1163                                         {
1164                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1165                                                         indexable->get_frame_rate() *
1166                                                         mwindow->edl->session->sample_rate /
1167                                                         mwindow->edl->local_session->zoom_sample);
1168                                                 paste_position = paste_video_position;
1169                                         }
1170                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1171                                                 w = Units::to_int64(clip->tracks->total_length() *
1172                                                         mwindow->edl->session->sample_rate /
1173                                                         mwindow->edl->local_session->zoom_sample);
1174                                                 paste_position = paste_video_position;
1175                                         }
1176                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1177                                                 current_vedit < mwindow->session->drag_edits->total) {
1178                                                 Edit *edit;
1179                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1180                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1181                                                         current_vedit++;
1182
1183                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1184                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1185                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1186                                                                 mwindow->edl->session->sample_rate /
1187                                                                 mwindow->edl->local_session->zoom_sample);
1188                                                         paste_position = mwindow->session->track_highlighted->
1189                                                                 from_units(drop_edit_position(&insertion,
1190                                                                         mwindow->session->drag_edit,
1191                                                                         mwindow->session->drag_edit->length));
1192                                                         current_vedit++;
1193                                                 }
1194                                         }
1195                                         if( paste_position >= 0 ) {
1196                                                 position = paste_position;
1197                                                 current_vedit++;
1198                                                 //draw_box = 1;
1199                                         }
1200                                         else
1201                                                 w = -1;
1202                                 }
1203
1204                                 if(w >= 0) {
1205 // Get the x coordinate
1206                                         x = Units::to_int64(position *
1207                                                 mwindow->edl->session->sample_rate /
1208                                                 mwindow->edl->local_session->zoom_sample) -
1209                                                 mwindow->edl->local_session->view_start[pane->number];
1210                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1211                                         int h = dest->vertical_span(mwindow->theme);
1212
1213 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1214                                         if(x < -BC_INFINITY) {
1215                                                 w -= -BC_INFINITY - x;
1216                                                 x += -BC_INFINITY - x;
1217                                         }
1218                                         w = MIN(65535, w);
1219 // if(pane->number == TOP_RIGHT_PANE)
1220 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1221 // __LINE__, x, y, w, h);
1222                                         if (insertion)
1223                                                 draw_highlight_insertion(x, y, w, h);
1224                                         else
1225                                                 draw_highlight_rectangle(x, y, w, h);
1226                                 }
1227                         }
1228                 }
1229         }
1230 }
1231
1232 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1233 {
1234         x = Units::round(plugin->track->from_units(plugin->startproject) *
1235                 mwindow->edl->session->sample_rate /
1236                 mwindow->edl->local_session->zoom_sample -
1237                 mwindow->edl->local_session->view_start[pane->number]);
1238         w = Units::round(plugin->track->from_units(plugin->length) *
1239                 mwindow->edl->session->sample_rate /
1240                 mwindow->edl->local_session->zoom_sample);
1241         y = plugin->track->y_pixel
1242                 - mwindow->edl->local_session->track_start[pane->number];
1243         if( plugin->track->show_titles() )
1244                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1245         if( plugin->track->show_assets() )
1246                 y += resource_h();
1247         y += plugin->plugin_set->get_number() *
1248                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1249         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1250 }
1251
1252 int TrackCanvas::resource_h()
1253 {
1254         return mwindow->edl->local_session->zoom_track;
1255 }
1256
1257 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1258 {
1259
1260 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1261 // just draw arrows, so user has indication that something is there
1262 // FIXME: get better colors
1263
1264         if (x + w <= 0)
1265         {
1266                 draw_triangle_left(0, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1267                 return;
1268         } else
1269         if (x >= get_w())
1270         {
1271                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1272                 return;
1273         }
1274
1275 // Fix bug in heroines & cvs version as of 22.8.2005:
1276 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1277         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1278         if(x < -10)
1279         {
1280                 w += x - -10;
1281                 x = -10;
1282         }
1283
1284         if(y < -10)
1285         {
1286                 h += y - -10;
1287                 y = -10;
1288         }
1289
1290         w = MIN(w, get_w() + 20);
1291         h = MIN(h, get_h() + 20);
1292         if(w > 0 && h > 0)
1293         {
1294                 set_color(mwindow->preferences->highlight_inverse);
1295                 set_inverse();
1296                 //draw_rectangle(x, y, w, h);
1297                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1298                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1299                 set_opaque();
1300                 draw_rectangle(x, y, w, h);
1301         }
1302 //if(pane->number == TOP_RIGHT_PANE)
1303 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1304 }
1305
1306 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1307 {
1308
1309 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1310 // just draw arrows, so user has indication that something is there
1311 // FIXME: get better colors
1312
1313
1314
1315         int h1 = h / 8;
1316         int h2 = h / 4;
1317
1318         set_inverse();
1319
1320 /* these don't look so good
1321
1322         draw_line(x, y, x, y+h);
1323         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1324         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1325         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1326         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1327 */
1328         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1329         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1330
1331 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1332         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1333         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1334         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1335 */
1336         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1337         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1338
1339 // draw the box centred around x
1340         x -= w / 2;
1341 // Fix bug in heroines & cvs version as of 22.8.2005:
1342 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1343         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1344         if(x < -10)
1345         {
1346                 w += x - -10;
1347                 x = -10;
1348         }
1349         if(y < -10)
1350         {
1351                 h += y - -10;
1352                 y = -10;
1353         }
1354         w = MIN(w, get_w() + 20);
1355         h = MIN(h, get_h() + 20);
1356         set_color(mwindow->preferences->highlight_inverse);
1357         set_inverse();
1358         draw_rectangle(x, y, w, h);
1359         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1360         set_opaque();
1361 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1362 }
1363
1364 void TrackCanvas::draw_playback_cursor()
1365 {
1366 // Called before playback_cursor exists
1367 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1368 //      {
1369 //              mwindow->playback_cursor->visible = 0;
1370 //              mwindow->playback_cursor->draw();
1371 //      }
1372 }
1373
1374 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1375 {
1376         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1377         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1378
1379         edit_dimensions(edit, x, y, w, h);
1380
1381         if( edit->track->show_titles() )
1382                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1383
1384         if(side == EDIT_OUT)
1385                 x += w - handle_w;
1386
1387         h = handle_h;
1388         w = handle_w;
1389 }
1390
1391 void TrackCanvas::get_transition_coords(Edit *edit,
1392                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1393 {
1394         int transition_w = 30, transition_h = 30;
1395         int has_titles = edit->track->show_titles();
1396         int has_assets = edit->track->show_assets();
1397         int title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1398         int asset_h2 = resource_h() / 2;
1399
1400         int iy = has_titles ?
1401                 ( has_assets ? title_bg_h + asset_h2 : title_bg_h/2 ) :
1402                 ( has_assets ? asset_h2 : 0) ;
1403         int title_h2 = mwindow->theme->title_h / 2;
1404         if( iy < title_h2 )
1405                 iy = title_h2;
1406         y += iy;
1407
1408         x -= transition_w / 2;
1409         y -= transition_h / 2;
1410         w = transition_w;
1411         h = transition_h;
1412 }
1413
1414 void TrackCanvas::draw_highlighting()
1415 {
1416         int64_t x, y, w, h;
1417         int draw_box = 0;
1418
1419         switch(mwindow->session->current_operation)
1420         {
1421                 case DRAG_ATRANSITION:
1422                 case DRAG_VTRANSITION:
1423 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1424 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1425                         if(mwindow->session->edit_highlighted) {
1426                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1427                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1428                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1429                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1430                                         edit_dimensions(mwindow->session->edit_highlighted,
1431                                                 x, y, w, h);
1432                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1433                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1434                                                 draw_box = 1;
1435                                                 get_transition_coords(mwindow->session->edit_highlighted,
1436                                                         x, y, w, h);
1437                                         }
1438                                 }
1439                         }
1440                         break;
1441
1442 // Dragging a new effect from the Resource window
1443                 case DRAG_AEFFECT:
1444                 case DRAG_VEFFECT:
1445                         if(mwindow->session->track_highlighted &&
1446                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1447                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1448                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1449                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1450 // Put it before another plugin
1451                                 if(mwindow->session->plugin_highlighted) {
1452                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1453                                                 x, y, w, h);
1454 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1455                                 }
1456 // Put it after a plugin set
1457                                 else if( mwindow->session->pluginset_highlighted &&
1458                                          mwindow->session->pluginset_highlighted->last ) {
1459                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1460                                                 x, y, w, h);
1461 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1462                                         int64_t track_x, track_y, track_w, track_h;
1463                                         track_dimensions(mwindow->session->track_highlighted,
1464                                                 track_x, track_y, track_w, track_h);
1465
1466                                         x += w;
1467                                         w = Units::round(
1468                                                         mwindow->session->track_highlighted->get_length() *
1469                                                         mwindow->edl->session->sample_rate /
1470                                                         mwindow->edl->local_session->zoom_sample -
1471                                                         mwindow->edl->local_session->view_start[pane->number]) -
1472                                                 x;
1473 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1474                                         if(w <= 0) w = track_w;
1475                                 }
1476                                 else {
1477                                         track_dimensions(mwindow->session->track_highlighted,
1478                                                 x, y, w, h);
1479
1480 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1481 // Put it in a new plugin set determined by the selected range
1482                                         if(mwindow->edl->local_session->get_selectionend() >
1483                                                 mwindow->edl->local_session->get_selectionstart()) {
1484                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1485                                                         mwindow->edl->session->sample_rate /
1486                                                         mwindow->edl->local_session->zoom_sample -
1487                                                         mwindow->edl->local_session->view_start[pane->number]);
1488                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1489                                                         mwindow->edl->local_session->get_selectionstart()) *
1490                                                         mwindow->edl->session->sample_rate /
1491                                                         mwindow->edl->local_session->zoom_sample);
1492                                         }
1493 // Put it in a new plugin set determined by an edit boundary
1494                                         else if(mwindow->session->edit_highlighted) {
1495                                                 int64_t temp_y, temp_h;
1496                                                 edit_dimensions(mwindow->session->edit_highlighted,
1497                                                         x, temp_y, w, temp_h);
1498                                         }
1499 // Put it at the beginning of the track in a new plugin set
1500                                 }
1501
1502                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1503                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1504 //printf("TrackCanvas::draw_highlighting 1\n");
1505                                         draw_box = 1;
1506                                 }
1507                         }
1508                         break;
1509
1510                 case DRAG_ASSET:
1511                         if(mwindow->session->track_highlighted) {
1512 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1513
1514 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1515 //                              {
1516                                         draw_paste_destination();
1517 //                              }
1518                         }
1519                         break;
1520
1521                 case DRAG_EDIT:
1522                         if(mwindow->session->track_highlighted) {
1523 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1524 //
1525 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1526                                         draw_paste_destination();
1527 //                              }
1528                         }
1529                         break;
1530
1531 // Dragging an effect from the timeline
1532                 case DRAG_AEFFECT_COPY:
1533                 case DRAG_VEFFECT_COPY:
1534                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1535                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1536                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1537                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1538                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1539
1540                                 int64_t plugin_position = -1;
1541                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1542                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1543                                 Track *hi_track = mwindow->session->track_highlighted;
1544                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1545 // Put it into a silence zone
1546                                 if( hi_plugin_set && hi_plugin_set->last &&
1547                                     hi_plugin_set->track == drag_plugin->track ) {
1548                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1549                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1550                                         hi_track = drag_plugin->track;
1551                                 }
1552                                 else if( hi_track ) {
1553 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1554                                         track_dimensions(hi_track, x, y, w, h);
1555                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1556                                 }
1557
1558                                 if( plugin_position < 0 ) break;
1559
1560 // Calculate length of plugin based on data type of track and units
1561                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1562                                                 mwindow->edl->local_session->zoom_sample;
1563                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1564                                                 mwindow->edl->local_session->view_start[pane->number];
1565                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1566
1567                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1568                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1569                                         draw_box = 1;
1570                                 }
1571                         }
1572                         break;
1573
1574                 case DRAG_PLUGINKEY:
1575                         if(mwindow->session->plugin_highlighted &&
1576                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1577                         {
1578 // Just highlight the plugin
1579                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1580
1581                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1582                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1583                                 {
1584                                         draw_box = 1;
1585                                 }
1586                         }
1587                         break;
1588
1589         }
1590
1591
1592         if(draw_box)
1593         {
1594                 draw_highlight_rectangle(x, y, w, h);
1595         }
1596 }
1597
1598 void TrackCanvas::draw_plugins()
1599 {
1600         char string[BCTEXTLEN];
1601         int current_on = 0;
1602         int current_show = 0;
1603         int current_preset = 0;
1604
1605         for(int i = 0; i < plugin_on_toggles.total; i++)
1606                 plugin_on_toggles.values[i]->in_use = 0;
1607         for(int i = 0; i < plugin_show_toggles.total; i++)
1608                 plugin_show_toggles.values[i]->in_use = 0;
1609         for(int i = 0; i < preset_edit_buttons.total; i++)
1610                 plugin_show_toggles.values[i]->in_use = 0;
1611
1612
1613         for(Track *track = mwindow->edl->tracks->first;
1614                 track;
1615                 track = track->next)
1616         {
1617                 if(track->expand_view)
1618                 {
1619                         for(int i = 0; i < track->plugin_set.total; i++)
1620                         {
1621                                 PluginSet *pluginset = track->plugin_set.values[i];
1622
1623                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1624                                 {
1625                                         int64_t total_x, y, total_w, h;
1626                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1627
1628                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1629                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1630                                                 plugin->plugin_type != PLUGIN_NONE)
1631                                         {
1632                                                 int x = total_x, w = total_w, left_margin = 5;
1633                                                 int right_margin = 5;
1634                                                 if(x < 0)
1635                                                 {
1636                                                         w -= -x;
1637                                                         x = 0;
1638                                                 }
1639                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1640
1641                                                 draw_3segmenth(x,
1642                                                         y,
1643                                                         w,
1644                                                         total_x,
1645                                                         total_w,
1646                                                         mwindow->theme->get_image("plugin_bg_data"),
1647                                                         0);
1648                                                 set_color(mwindow->theme->title_color);
1649                                                 set_font(mwindow->theme->title_font);
1650                                                 plugin->calculate_title(string, 0);
1651
1652 // Truncate string to int64_test visible in background
1653                                                 int len = strlen(string), j;
1654                                                 for(j = len; j >= 0; j--)
1655                                                 {
1656                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1657                                                         {
1658                                                                 string[j] = 0;
1659                                                         }
1660                                                         else
1661                                                                 break;
1662                                                 }
1663
1664 // Justify the text on the left boundary of the edit if it is visible.
1665 // Otherwise justify it on the left side of the screen.
1666                                                 int64_t text_x = total_x + left_margin;
1667                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1668                                                 text_x = MAX(left_margin, text_x);
1669                                                 draw_text(text_x,
1670                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1671                                                         string,
1672                                                         strlen(string),
1673                                                         0);
1674                                                 int64_t min_x = total_x + text_w;
1675
1676
1677 // Update plugin toggles
1678                                                 int toggle_x = total_x + total_w;
1679                                                 int toggle_y = y;
1680                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1681
1682 // On toggle
1683                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1684                                                 if(toggle_x > min_x)
1685                                                 {
1686                                                         if(current_on >= plugin_on_toggles.total)
1687                                                         {
1688                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1689                                                                 add_subwindow(plugin_on);
1690                                                                 plugin_on_toggles.append(plugin_on);
1691                                                         }
1692                                                         else
1693                                                         {
1694                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1695                                                         }
1696                                                         current_on++;
1697                                                 }
1698
1699 // Toggles for standalone plugins only
1700                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1701                                                 {
1702 // Show
1703                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1704                                                         if(toggle_x > min_x)
1705                                                         {
1706                                                                 if(current_show >= plugin_show_toggles.total)
1707                                                                 {
1708                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1709                                                                         add_subwindow(plugin_show);
1710                                                                         plugin_show_toggles.append(plugin_show);
1711                                                                 }
1712                                                                 else
1713                                                                 {
1714                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1715                                                                 }
1716                                                                 current_show++;
1717                                                         }
1718                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + 10;
1719                                                         if(toggle_x > min_x)
1720                                                         {
1721                                                                 if(current_preset >= preset_edit_buttons.total)
1722                                                                 {
1723                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1724                                                                         add_subwindow(preset_edit);
1725                                                                         preset_edit_buttons.append(preset_edit);
1726                                                                 }
1727                                                                 else
1728                                                                 {
1729                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1730                                                                 }
1731                                                                 current_preset++;
1732                                                         }
1733                                                 }
1734                                         }
1735                                 }
1736                         }
1737                 }
1738         }
1739
1740 // Remove unused toggles
1741
1742         while(current_preset < preset_edit_buttons.total)
1743         {
1744                 preset_edit_buttons.remove_object_number(current_preset);
1745         }
1746         while(current_show < plugin_show_toggles.total)
1747         {
1748                 plugin_show_toggles.remove_object_number(current_show);
1749         }
1750
1751         while(current_on < plugin_on_toggles.total)
1752         {
1753                 plugin_on_toggles.remove_object_number(current_on);
1754         }
1755 }
1756
1757 void TrackCanvas::refresh_plugintoggles()
1758 {
1759         for(int i = 0; i < plugin_on_toggles.total; i++)
1760         {
1761                 PluginOn *on = plugin_on_toggles.values[i];
1762                 on->reposition_window(on->get_x(), on->get_y());
1763         }
1764         for(int i = 0; i < plugin_show_toggles.total; i++)
1765         {
1766                 PluginShow *show = plugin_show_toggles.values[i];
1767                 show->reposition_window(show->get_x(), show->get_y());
1768         }
1769         for(int i = 0; i < preset_edit_buttons.total; i++)
1770         {
1771                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1772                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1773         }
1774 }
1775
1776 void TrackCanvas::draw_hard_edges()
1777 {
1778         int64_t x, y, w, h;
1779
1780         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1781                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1782                         if( !edit->hard_left && !edit->hard_right ) continue;
1783                         edit_dimensions(edit, x, y, w, h);
1784                         set_color(GREEN);
1785                         set_opaque();
1786                         int y1 = y;
1787                         if( track->show_titles() )
1788                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1789                         if( track->show_assets() )
1790                                 y1 += resource_h();
1791                         if( y1 == y )
1792                                 y1 += mwindow->theme->title_h;
1793                         if( edit->hard_left ) {
1794                                 ArrayList<int> xpt, ypt;
1795                                 xpt.append(x);              ypt.append(y1);
1796                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1797                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1798                                 fill_polygon(&xpt, &ypt);
1799                         }
1800                         if( edit->hard_right ) {
1801                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1802                                 xpt.append(x1);            ypt.append(y1);
1803                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1804                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1805                                 fill_polygon(&xpt, &ypt);
1806                         }
1807                 }
1808         }
1809 }
1810
1811 void TrackCanvas::draw_inout_points()
1812 {
1813 }
1814
1815
1816 void TrackCanvas::draw_drag_handle()
1817 {
1818         if(mwindow->session->current_operation == DRAG_EDITHANDLE2 ||
1819                 mwindow->session->current_operation == DRAG_PLUGINHANDLE2)
1820         {
1821 //printf("TrackCanvas::draw_drag_handle 1 %ld %ld\n", mwindow->session->drag_sample, mwindow->edl->local_session->view_start);
1822                 int64_t pixel1 = Units::round(mwindow->session->drag_position *
1823                         mwindow->edl->session->sample_rate /
1824                         mwindow->edl->local_session->zoom_sample -
1825                         mwindow->edl->local_session->view_start[pane->number]);
1826 //printf("TrackCanvas::draw_drag_handle 2 %d %jd\n", pane->number, pixel1);
1827                 set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1828                 set_inverse();
1829 //printf("TrackCanvas::draw_drag_handle 3\n");
1830                 draw_line(pixel1, 0, pixel1, get_h());
1831                 set_opaque();
1832 //printf("TrackCanvas::draw_drag_handle 4\n");
1833         }
1834 }
1835
1836
1837 void TrackCanvas::draw_transitions()
1838 {
1839         int64_t x, y, w, h;
1840
1841         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1842                 if( !track->show_transitions() ) continue;
1843
1844                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1845                         if(!edit->transition) continue;
1846                         edit_dimensions(edit, x, y, w, h);
1847                         int strip_x = x, edit_y = y;
1848                         get_transition_coords(edit, x, y, w, h);
1849                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
1850                         if( strip_y < edit_y ) strip_y = edit_y;
1851
1852                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
1853                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
1854                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1855                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1856                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
1857                                                 track->data_type);
1858                                 if( !server ) continue;
1859                                 VFrame *picon = server->get_picon();
1860                                 if( !picon ) continue;
1861                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
1862                                 int track_h = edit->track->vertical_span(mwindow->theme);
1863                                 if( picon_h > track_h ) picon_h = track_h;
1864                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
1865                         }
1866                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
1867                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
1868                                 int x = strip_x, w = strip_w;
1869                                 if( x < 0 ) {  w -= -x;  x = 0; }
1870                                 if( w + x > get_w() ) w -= (w + x) - get_w();
1871
1872                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
1873                                         mwindow->theme->get_image("plugin_bg_data"), 0);
1874                         }
1875                 }
1876         }
1877 }
1878
1879 void TrackCanvas::draw_loop_points()
1880 {
1881 //printf("TrackCanvas::draw_loop_points 1\n");
1882         if(mwindow->edl->local_session->loop_playback)
1883         {
1884 //printf("TrackCanvas::draw_loop_points 2\n");
1885                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
1886                         mwindow->edl->session->sample_rate /
1887                         mwindow->edl->local_session->zoom_sample -
1888                         mwindow->edl->local_session->view_start[pane->number]);
1889 //printf("TrackCanvas::draw_loop_points 3\n");
1890
1891                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1892                 {
1893                         set_color(GREEN);
1894                         draw_line(x, 0, x, get_h());
1895                 }
1896 //printf("TrackCanvas::draw_loop_points 4\n");
1897
1898                 x = Units::round(mwindow->edl->local_session->loop_end *
1899                         mwindow->edl->session->sample_rate /
1900                         mwindow->edl->local_session->zoom_sample -
1901                         mwindow->edl->local_session->view_start[pane->number]);
1902 //printf("TrackCanvas::draw_loop_points 5\n");
1903
1904                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1905                 {
1906                         set_color(GREEN);
1907                         draw_line(x, 0, x, get_h());
1908                 }
1909 //printf("TrackCanvas::draw_loop_points 6\n");
1910         }
1911 //printf("TrackCanvas::draw_loop_points 7\n");
1912 }
1913
1914 void TrackCanvas::draw_brender_range()
1915 {
1916         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
1917         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
1918         if( mwindow->edl->session->brender_end > 0 )
1919         {
1920                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
1921                         mwindow->edl->session->sample_rate /
1922                         mwindow->edl->local_session->zoom_sample -
1923                         mwindow->edl->local_session->view_start[pane->number]);
1924                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
1925                 {
1926                         set_color(RED);
1927                         draw_line(x1, 0, x1, get_h());
1928                 }
1929                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
1930                         mwindow->edl->session->sample_rate /
1931                         mwindow->edl->local_session->zoom_sample -
1932                         mwindow->edl->local_session->view_start[pane->number]);
1933
1934                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
1935                 {
1936                         set_color(RED);
1937                         draw_line(x2, 0, x2, get_h());
1938                 }
1939         }
1940 }
1941
1942 // The operations which correspond to each automation type
1943 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
1944 {
1945         DRAG_MUTE,
1946         DRAG_CAMERA_X,
1947         DRAG_CAMERA_Y,
1948         DRAG_CAMERA_Z,
1949         DRAG_PROJECTOR_X,
1950         DRAG_PROJECTOR_Y,
1951         DRAG_PROJECTOR_Z,
1952         DRAG_FADE,
1953         DRAG_PAN,
1954         DRAG_MODE,
1955         DRAG_MASK,
1956         DRAG_SPEED
1957 };
1958
1959 // The buttonpress operations, so nothing changes unless the mouse moves
1960 // a certain amount.  This allows the keyframe to be used to position the
1961 // insertion point without moving itself.
1962 static int pre_auto_operations[AUTOMATION_TOTAL] =
1963 {
1964         DRAG_MUTE,
1965         DRAG_CAMERA_X,
1966         DRAG_CAMERA_Y,
1967         DRAG_CAMERA_Z,
1968         DRAG_PROJECTOR_X,
1969         DRAG_PROJECTOR_Y,
1970         DRAG_PROJECTOR_Z,
1971         DRAG_FADE,
1972         DRAG_PAN_PRE,
1973         DRAG_MODE_PRE,
1974         DRAG_MASK_PRE,
1975         DRAG_SPEED
1976 };
1977
1978
1979 int TrackCanvas::do_keyframes(int cursor_x,
1980         int cursor_y,
1981         int draw,
1982         int buttonpress,
1983         int &new_cursor,
1984         int &update_cursor,
1985         int &rerender)
1986 {
1987 // Note: button 3 (right mouse button) is not eaten to allow
1988 // track context menu to appear
1989         int result = 0;
1990         EDLSession *session = mwindow->edl->session;
1991
1992
1993
1994         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
1995         {
1996                 0, 0, 0, 0, 0, 0, 0, 0,
1997                 pankeyframe_pixmap,
1998                 modekeyframe_pixmap,
1999                 maskkeyframe_pixmap,
2000         };
2001
2002
2003
2004         for(Track *track = mwindow->edl->tracks->first;
2005                 track && !result;
2006                 track = track->next) {
2007                 Auto *auto_keyframe = 0;
2008                 Automation *automation = track->automation;
2009
2010
2011 // Handle keyframes in reverse drawing order if a button press
2012                 int start = 0;
2013                 int end = AUTOMATION_TOTAL;
2014                 int step = 1;
2015                 if(buttonpress)
2016                 {
2017                         start = AUTOMATION_TOTAL - 1;
2018                         end = -1;
2019                         step = -1;
2020                 }
2021                 for(int i = start; i != end && !result; i += step)
2022                 {
2023 // Event not trapped and automation visible
2024                         Autos *autos = automation->autos[i];
2025                         if(!result && session->auto_conf->autos[i] && autos) {
2026                                 switch(i) {
2027                                 case AUTOMATION_MODE:
2028                                 case AUTOMATION_PAN:
2029                                 case AUTOMATION_MASK:
2030                                         result = do_autos(track, automation->autos[i],
2031                                                 cursor_x, cursor_y, draw,
2032                                                 buttonpress, auto_pixmaps[i],
2033                                                 auto_keyframe, rerender);
2034                                                 break;
2035
2036                                 default: {
2037                                         switch(autos->get_type()) {
2038                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2039                                                 Automation automation(0, track);
2040                                                 int grouptype = automation.autogrouptype(i, track);
2041                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2042                                                         mwindow->speed_before();
2043                                                 }
2044
2045                                                 if(draw) // Do dropshadow
2046                                                         result = do_float_autos(track, autos,
2047                                                                 cursor_x, cursor_y, draw,
2048                                                                 buttonpress, 1, 1, MDGREY,
2049                                                                 auto_keyframe, grouptype);
2050                                                 result = do_float_autos(track, autos,
2051                                                         cursor_x, cursor_y, draw, buttonpress,
2052                                                         0, 0, GWindowGUI::auto_colors[i],
2053                                                         auto_keyframe, grouptype);
2054
2055                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2056                                                         mwindow->speed_after(-1);
2057                                                 int current_grouptype = mwindow->edl->local_session->zoombar_showautotype;
2058                                                 if( result && buttonpress && grouptype != current_grouptype ) {
2059                                                         mwindow->edl->local_session->zoombar_showautotype = grouptype;
2060                                                         mwindow->gui->zoombar->update_autozoom();
2061                                                 }
2062                                                 break; }
2063
2064                                         case Autos::AUTOMATION_TYPE_INT: {
2065                                                 if(draw) // Do dropshadow
2066                                                         result = do_int_autos(track, autos,
2067                                                                 cursor_x, cursor_y, draw,
2068                                                                 buttonpress, 1, 1, MDGREY,
2069                                                                 auto_keyframe);
2070                                                 result = do_int_autos(track, autos,
2071                                                         cursor_x, cursor_y, draw, buttonpress,
2072                                                         0, 0, GWindowGUI::auto_colors[i],
2073                                                         auto_keyframe);
2074                                                 break; }
2075                                         }
2076                                         break; }
2077                                 }
2078
2079                                 if(result)
2080                                 {
2081                                         if(mwindow->session->current_operation == auto_operations[i])
2082                                                 rerender = 1;
2083
2084 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2085 // __LINE__,
2086 // mwindow->session->current_operation,
2087 // auto_operations[i]);
2088                                         if(buttonpress)
2089                                         {
2090                                                 if (buttonpress != 3)
2091                                                 {
2092                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2093                                                                 synchronize_autos(0,
2094                                                                         track,
2095                                                                         (FloatAuto*)mwindow->session->drag_auto,
2096                                                                         1);
2097                                                         mwindow->session->current_operation = pre_auto_operations[i];
2098                                                         update_drag_caption();
2099                                                         rerender = 1;
2100                                                 }
2101                                                 else if( auto_keyframe )
2102                                                 {
2103                                                         gui->keyframe_menu->update(automation,
2104                                                                 autos,
2105                                                                 auto_keyframe);
2106                                                         gui->keyframe_menu->activate_menu();
2107                                                         rerender = 1; // the position changes
2108                                                 }
2109                                                 else if( autos )
2110                                                 {
2111                                                         gui->keyframe_hide->update(autos);
2112                                                         gui->keyframe_hide->activate_menu();
2113                                                         rerender = 1; // the position changes
2114                                                 }
2115                                                 if(buttonpress == 1 && ctrl_down() &&
2116                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2117                                                         rerender = 1; // special case: curve mode changed
2118                                         }
2119                                 }
2120                         }
2121                 }
2122
2123                 if(!result && session->auto_conf->plugins) {
2124                         Plugin *plugin;
2125                         KeyFrame *keyframe;
2126                         result = do_plugin_autos(track, cursor_x, cursor_y,
2127                                 draw, buttonpress, plugin, keyframe);
2128                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2129                                 rerender = 1;
2130                         }
2131                         if(result && (buttonpress == 1)) {
2132                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2133                                 update_drag_caption();
2134                                 rerender = 1;
2135                         }
2136                         else if (result && (buttonpress == 3)) {
2137                                 gui->keyframe_menu->update(plugin, keyframe);
2138                                 gui->keyframe_menu->activate_menu();
2139                                 rerender = 1; // the position changes
2140                         }
2141                 }
2142         }
2143
2144 // Final pass to trap event
2145         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2146                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2147                         mwindow->session->current_operation == auto_operations[i]) {
2148                         result = 1;
2149                         break;
2150                 }
2151         }
2152
2153         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2154                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2155                 result = 1;
2156         }
2157
2158         update_cursor = 1;
2159         if(result) {
2160                 new_cursor = UPRIGHT_ARROW_CURSOR;
2161         }
2162
2163
2164         return result;
2165 }
2166
2167 void TrackCanvas::draw_keyframe_reticle()
2168 {
2169         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2170         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2171
2172         int current_op = mwindow->session->current_operation, dragging = 0;
2173         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2174                 if( current_op == auto_operations[i] ) dragging = 1;
2175
2176         if( keyframe_hairline == HAIRLINE_DRAGGING && dragging ) {
2177                 if( mwindow->session->drag_auto && get_buttonpress() == 1 ) {
2178                         draw_hairline(mwindow->session->drag_auto, RED);
2179                         return;
2180                 }
2181         }
2182
2183         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == 2 &&
2184             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2185                 for( Track *track = mwindow->edl->tracks->first; track;
2186                      track=track->next ) {
2187                         Automation *automation = track->automation;
2188                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2189                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2190                                 // automation visible
2191                                 Autos *autos = automation->autos[i];
2192                                 if( !autos ) continue;
2193                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2194                                      auto_keyframe = auto_keyframe->next ) {
2195                                         draw_hairline(auto_keyframe, BLUE);
2196                                 }
2197                         }
2198
2199                         if( dragging && mwindow->session->drag_auto ) {
2200                                 draw_hairline(mwindow->session->drag_auto, RED);
2201                         }
2202                 }
2203         }
2204 }
2205
2206 void TrackCanvas::draw_auto(Auto *current,
2207         int x,
2208         int y,
2209         int center_pixel,
2210         int zoom_track)
2211 {
2212         int x1, y1, x2, y2;
2213
2214         x1 = x - HANDLE_W / 2;
2215         x2 = x + HANDLE_W / 2;
2216         y1 = center_pixel + y - HANDLE_W / 2;
2217         y2 = center_pixel + y + HANDLE_W / 2;
2218
2219         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2220         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2221
2222         draw_box(x1, y1, x2 - x1, y2 - y1);
2223 }
2224
2225
2226 // This draws lines for bezier in & out controls
2227 void TrackCanvas::draw_cropped_line(int x1,
2228         int y1,
2229         int x2,
2230         int y2,
2231         int min_y,
2232         int max_y)
2233 {
2234
2235
2236 // Don't care about x since it is clipped by the window.
2237 // Put y coords in ascending order
2238         if(y2 < y1) {
2239                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2240                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2241         }
2242
2243
2244
2245         double slope = (double)(x2 - x1) / (y2 - y1);
2246 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2247         if(y1 < min_y) {
2248                 x1 = (int)(x1 + (min_y - y1) * slope);
2249                 y1 = min_y;
2250         }
2251         else if(y1 >= max_y) {
2252                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2253                 y1 = max_y - 1;
2254         }
2255
2256         if(y2 >= max_y) {
2257                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2258                 y2 = max_y - 1;
2259         }
2260         else if(y2 < min_y) {
2261                 x2 = (int)(x2 + (min_y - y2) * slope);
2262                 y1 = min_y;
2263         }
2264
2265
2266 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2267         if( y1 >= min_y && y1 < max_y &&
2268             y2 >= min_y && y2 < max_y )
2269                 draw_line(x1, y1, x2, y2);
2270 }
2271
2272
2273 void TrackCanvas::draw_floatauto(FloatAuto *current,
2274         int x,
2275         int y,
2276         int in_x,
2277         int in_y,
2278         int out_x,
2279         int out_y,
2280         int center_pixel,
2281         int zoom_track,
2282         int color)
2283 {
2284         int x1 = x - HANDLE_W / 2; // Center
2285         int x2 = x + HANDLE_W / 2;
2286         int y1 = center_pixel + y - HANDLE_H / 2;
2287         int y2 = center_pixel + y + HANDLE_H / 2;
2288         int ymin = center_pixel - zoom_track / 2;
2289         int ymax = center_pixel + zoom_track / 2;
2290         CLAMP(y1, ymin, ymax);
2291         CLAMP(y2, ymin, ymax);
2292
2293         if(y2 - 1 > y1)
2294         {
2295                 set_color(BLACK);
2296                 draw_box(x1 + 1, y1 + 1, x2 - x1, y2 - y1);
2297                 set_color(color);
2298                 draw_box(x1, y1, x2 - x1, y2 - y1);
2299         }
2300
2301 // show bezier control points (only) if this
2302 // floatauto doesn't adjust it's tangents automatically
2303         if(current->curve_mode != FloatAuto::FREE &&
2304            current->curve_mode != FloatAuto::TFREE)
2305                 return;
2306
2307         if(in_x != x)
2308                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2309         if(out_x != x)
2310                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2311 }
2312
2313 inline int quantize(float f) { return (int)floor(f + 0.5); }
2314
2315 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2316         int x, int y, int cp_x, int cp_y, int center_pixel,
2317         int zoom_track, int color)
2318 // draw the tangent and a handle for given bézier ctrl point
2319 {
2320         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2321
2322         float slope = (float)(cp_y - y)/(cp_x - x);
2323         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2324         if(slope != 0)
2325                 cp_x = x + quantize((cp_y - y) / slope);
2326
2327         y    += center_pixel;
2328         cp_y += center_pixel;
2329
2330         // drawing the tangent as a dashed line...
2331         int const dash = HANDLE_W;
2332         int const gap  = HANDLE_W / 2;
2333         float sx = 3 * (cp_x - x) / 4.;
2334         float ex = 0;
2335
2336         // q is the x displacement for a unit line of slope
2337         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2338
2339         float dist = 1/q * sx;
2340         if( dist > dash )
2341                 ex = sx - q * dash;
2342
2343         set_color(color);
2344         do {
2345                 float sy = slope * sx, ey = slope * ex;
2346                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2347                 sx = ex - q * gap;
2348                 ex = sx - q * dash;
2349         } while(q*ex > 0);
2350
2351         if(handle_visible)
2352         {
2353                 int r = HANDLE_W / 2;
2354                 int cp_x1 = cp_x - r;
2355                 int cp_y1 = cp_y - r;
2356                 set_color(BLACK);
2357                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2358                 set_color(color);
2359                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2360         }
2361 }
2362
2363
2364 int TrackCanvas::test_auto(Auto *current,
2365         int x, int y, int center_pixel, int zoom_track,
2366         int cursor_x, int cursor_y, int buttonpress)
2367 {
2368         int x1, y1, x2, y2;
2369         int result = 0;
2370
2371         x1 = x - HANDLE_W / 2;
2372         x2 = x + HANDLE_W / 2;
2373         y1 = center_pixel + y - HANDLE_H / 2;
2374         y2 = center_pixel + y + HANDLE_H / 2;
2375         int ymin = center_pixel - zoom_track / 2;
2376         int ymax = center_pixel + zoom_track / 2;
2377         CLAMP(y1, ymin, ymax);
2378         CLAMP(y2, ymin, ymax);
2379
2380         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2381         {
2382                 if(buttonpress && buttonpress != 3)
2383                 {
2384                         mwindow->session->drag_auto = current;
2385                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2386                         // Toggle Autos don't respond to vertical zoom, they always show up
2387                         // with "on" == 100% == line on top
2388                         mwindow->session->drag_start_position = current->position;
2389                         mwindow->session->drag_origin_x = cursor_x;
2390                         mwindow->session->drag_origin_y = cursor_y;
2391                 }
2392                 result = 1;
2393         }
2394
2395         if(buttonpress && buttonpress != 3 && result)
2396         {
2397 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2398                 mwindow->undo->update_undo_before();
2399         }
2400
2401         return result;
2402 }
2403
2404 // some Helpers for test_floatauto(..)
2405 // and for dragging the tangents/ctrl points
2406 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2407         float cursor_x, float cursor_y)
2408 {
2409 // Control point switched off?
2410         if( x0 == ctrl_x ) return 0.0;
2411         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2412         double x = cursor_x-x0, y = cursor_y-y0;
2413 // wrong side of ctrl handle
2414         if( x*x1 < 0 ) return 0.0;
2415 // outside handle radius
2416         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2417         double xx1 = x1*x1, yy1 = y1*y1;
2418         double xx = x*x, yy = y*y;
2419 // distance squared from cursor to cursor projected to line from ctrl to handle
2420 //   along a line perpendicular to line from ctrl to handle (closest approach)
2421 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2422         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2423         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2424 }
2425
2426
2427 inline
2428 float levered_position(float position, float ref_pos)
2429 {
2430         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2431                 return 0.0;
2432         return ref_pos / position;
2433 }
2434
2435
2436 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2437 // transforms automation value into current display coords,
2438 // dependant on current automation display range for the given kind of automation
2439 {
2440         if(!mwindow || !mwindow->edl) return 0;
2441         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2442         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2443         float automation_range = automation_max - automation_min;
2444         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2445                 return 0;
2446         return (auto_value - automation_min) / automation_range;
2447 }
2448
2449
2450
2451 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2452         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2453         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2454 {
2455         int result = 0;
2456
2457         int x1 = x - HANDLE_W / 2;
2458         int x2 = x + HANDLE_W / 2;
2459         int y1 = center_pixel + y - HANDLE_W / 2;
2460         int y2 = center_pixel + y + HANDLE_W / 2;
2461         int ymin = center_pixel - zoom_track / 2;
2462         int ymax = center_pixel + zoom_track / 2;
2463         CLAMP(y1, ymin, ymax);
2464         CLAMP(y2, ymin, ymax);
2465
2466         int in_x1 = in_x - HANDLE_W / 2;
2467         int in_x2 = in_x + HANDLE_W / 2;
2468         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2469         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2470         CLAMP(in_y1, ymin, ymax);
2471         CLAMP(in_y2, ymin, ymax);
2472
2473         int out_x1 = out_x - HANDLE_W / 2;
2474         int out_x2 = out_x + HANDLE_W / 2;
2475         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2476         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2477         CLAMP(out_y1, ymin, ymax);
2478         CLAMP(out_y2, ymin, ymax);
2479
2480
2481 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2482 // buttonpress could be the start of a drag operation
2483 #define INIT_DRAG(POS,VAL) \
2484                 mwindow->session->drag_auto = current;      \
2485                 mwindow->session->drag_origin_x = cursor_x;  \
2486                 mwindow->session->drag_origin_y = cursor_y;   \
2487                 mwindow->session->drag_start_position = (POS); \
2488                 mwindow->session->drag_start_percentage = (VAL);
2489
2490 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2491
2492
2493 // without modifier we are manipulating the automation node
2494 // with ALT it's about dragging only the value of the node
2495 // with SHIFT the value snaps to the value of neighbouring nodes
2496 // CTRL indicates we are rather manipulating the tangent(s) of the node
2497
2498         if(!ctrl_down())
2499         {
2500                 if( WITHIN(x1,x2,y1,y2))
2501                 {       // cursor hits node
2502                         result = 1;
2503
2504                         if(buttonpress && (buttonpress != 3))
2505                         {
2506                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2507                                 mwindow->session->drag_handle = 0;
2508                 }       }
2509         }
2510         else // ctrl_down()
2511         {
2512                 if( WITHIN(x1,x2,y1,y2))
2513                 {
2514                         result = 1;
2515                         if(buttonpress && (buttonpress != 3))
2516                         {
2517                                 // could be ctrl-click or ctrl-drag
2518                                 // click would cycle through tangent modes
2519                                 ((FloatAuto*)current)->toggle_curve_mode();
2520
2521                                 // drag will start dragging the tangent, if applicable
2522                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2523                                 mwindow->session->drag_handle = 0;
2524                         }
2525                 }
2526
2527                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2528
2529 // Test in control
2530                 if( in_x != x && current->position > 0 &&
2531                         (FloatAuto::FREE == current->curve_mode ||
2532                          FloatAuto::TFREE == current->curve_mode))
2533 // act on in control handle only if
2534 // tangent is significant and is editable (not automatically choosen)
2535                 {
2536                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2537  // either cursor in ctrl-point handle or cursor on tangent line
2538                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2539                                 result = 1;
2540                                 if(buttonpress && (buttonpress != 3)) {
2541                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2542 //                                      lever = 1.0;
2543                                         mwindow->session->drag_handle = 1;
2544                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2545                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2546                                                   value_to_percentage(new_invalue, autogrouptype))
2547                                 }
2548                         }
2549                 }
2550
2551 // Test out control
2552                 if(out_x != x &&
2553                         (FloatAuto::FREE == current->curve_mode ||
2554                          FloatAuto::TFREE == current->curve_mode))
2555 // act on out control only if tangent is significant and is editable
2556                 {
2557                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2558                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2559                                 result = 1;
2560                                 if(buttonpress && (buttonpress != 3)) {
2561                                         if(lever == 0.0) lever=1.0;
2562 //                                      lever = 1.0;
2563                                         mwindow->session->drag_handle = 2;
2564                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2565                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2566                                                   value_to_percentage(new_outvalue, autogrouptype))
2567                                 }
2568                         }
2569                 }
2570         } // end ctrl_down()
2571
2572 #undef WITHIN
2573 #undef INIT_DRAG
2574
2575 // if(buttonpress)
2576 // 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",
2577 // mwindow->session->drag_handle,
2578 // ctrl_down(),
2579 // cursor_x,
2580 // cursor_y,
2581 // x1, x2, y1, y2);
2582         if(buttonpress && (buttonpress != 3) && result)
2583         {
2584                 mwindow->undo->update_undo_before();
2585         }
2586
2587         return result;
2588 }
2589
2590
2591 // Get the float value & y for position x on the canvas
2592 #define X_TO_FLOATLINE(x) \
2593         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2594         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2595 /* Call by reference fails for some reason here */ \
2596         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2597         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2598         double position = unit_start + x * zoom_units; \
2599         double value = 0; \
2600         if(position2 > position1) \
2601         { \
2602                 value = value1 + \
2603                         (value2 - value1) * \
2604                         (position - position1) / \
2605                         (position2 - position1); \
2606         } \
2607         else \
2608         { \
2609                 value = value1; \
2610         } \
2611         AUTOMATIONCLAMPS(value, autogrouptype); \
2612         int y = center_pixel + \
2613                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2614
2615
2616 void TrackCanvas::draw_floatline(int center_pixel,
2617         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2618         double unit_start, double zoom_units, double yscale,
2619         int x1, int y1, int x2, int y2,
2620         int color, int autogrouptype)
2621 {
2622 // Solve bezier equation for either every pixel or a certain large number of
2623 // points.
2624
2625 // Not using slope intercept
2626         x1 = MAX(0, x1);
2627         int prev_y = y1 + center_pixel;
2628
2629
2630 // Call by reference fails for some reason here
2631         FloatAuto *previous1 = previous, *next1 = next;
2632         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2633         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2634         float automation_range = automation_max - automation_min;
2635
2636         for(int x = x1; x < x2; x++)
2637         {
2638 // Interpolate value between frames
2639                 X_TO_FLOATLINE(x)
2640
2641                 if(/* x > x1 && */
2642                         y >= center_pixel - yscale / 2 &&
2643                         y < center_pixel + yscale / 2 - 1)
2644                 {
2645 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2646 // y,
2647 // (int)(center_pixel - yscale / 2),
2648 // (int)(center_pixel + yscale / 2 - 1));
2649
2650 //printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
2651                         draw_line(x - 1, prev_y  , x, y   );
2652                 }
2653                 prev_y = y;
2654         }
2655 }
2656
2657
2658
2659
2660
2661 int TrackCanvas::test_floatline(int center_pixel,
2662                 FloatAutos *autos,
2663                 double unit_start,
2664                 double zoom_units,
2665                 double yscale,
2666                 int x1,
2667                 int x2,
2668                 int cursor_x,
2669                 int cursor_y,
2670                 int buttonpress,
2671                 int autogrouptype)
2672 {
2673         int result = 0;
2674
2675
2676         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2677         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2678         float automation_range = automation_max - automation_min;
2679         FloatAuto *previous1 = 0, *next1 = 0;
2680         X_TO_FLOATLINE(cursor_x);
2681
2682         if(cursor_x >= x1 &&
2683                 cursor_x < x2 &&
2684                 cursor_y >= y - HANDLE_W / 2 &&
2685                 cursor_y < y + HANDLE_W / 2 &&
2686                 !ctrl_down())
2687         {
2688                 result = 1;
2689
2690 // Menu
2691                 if(buttonpress == 3)
2692                 {
2693                 }
2694                 else
2695 // Create keyframe
2696                 if(buttonpress)
2697                 {
2698                         Auto *current;
2699                         mwindow->undo->update_undo_before();
2700                         double position = autos->track->from_units(position1);
2701                         position = mwindow->edl->align_to_frame(position, 0);
2702                         int64_t new_position = autos->track->to_units(position,0);
2703                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2704                         ((FloatAuto*)current)->set_value(value);
2705                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2706                         mwindow->session->drag_start_position = current->position;
2707                         mwindow->session->drag_origin_x = cursor_x;
2708                         mwindow->session->drag_origin_y = cursor_y;
2709                         mwindow->session->drag_handle = 0;
2710                 }
2711         }
2712
2713
2714         return result;
2715 }
2716
2717
2718 void TrackCanvas::synchronize_autos(float change,
2719                 Track *skip, FloatAuto *fauto, int fill_gangs)
2720 {
2721 // Handles the special case of modifying a fadeauto
2722 // when there are ganged faders on several tracks
2723 // (skip and fauto may be NULL if fill_gangs==-1)
2724
2725         if( fill_gangs > 0 && skip->gang ) {
2726                 double position = skip->from_units(fauto->position);
2727                 int autoidx = fauto->autos->autoidx;
2728
2729                 for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2730                         if( (current->data_type == skip->data_type || get_double_click()) &&
2731                             current->gang && current->record && current != skip ) {
2732                                 int64_t current_position = current->to_units(position, 1);
2733                                 FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2734                                 float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2735                                 float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2736                                 FloatAuto *previous = 0, *next = 0;
2737                                 FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(current_position);
2738                                 if( !keyframe ) {
2739 // create keyframe on neighbouring track at the point in time given by fauto
2740                                         float init_value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2741                                         float new_value = init_value + change;
2742                                         CLAMP(new_value, auto_min, auto_max);
2743                                         keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2744                                         keyframe->set_value(new_value);
2745                                 }
2746                                 else {
2747 // keyframe exists, just change it
2748                                         float new_value = keyframe->get_value() + change;
2749                                         CLAMP(new_value, auto_min, auto_max);
2750                                         keyframe->adjust_to_new_coordinates(current_position, new_value);
2751 // need to (re)set the position, as the existing node could be on a "equivalent" position (within half a frame)
2752                                 }
2753
2754                                 mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2755                         }
2756                 }
2757         }
2758         else if( !fill_gangs ) {
2759                 double position = skip->from_units(fauto->position);
2760 // Move the gangs
2761                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2762                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2763                         int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2764                         float new_value = keyframe->get_value() + change;
2765                         CLAMP(new_value,
2766                               mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2767                               mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2768                         keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2769                 }
2770
2771         }
2772         else {
2773 // remove the gangs
2774                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2775                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2776                         keyframe->autos->remove_nonsequential(
2777                                         keyframe);
2778                 }
2779                 mwindow->session->drag_auto_gang->remove_all();
2780         }
2781 }
2782
2783
2784 void TrackCanvas::draw_toggleline(int center_pixel,
2785         int x1,
2786         int y1,
2787         int x2,
2788         int y2)
2789 {
2790         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2791
2792         if(y2 != y1)
2793         {
2794                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2795         }
2796 }
2797
2798 int TrackCanvas::test_toggleline(Autos *autos,
2799         int center_pixel,
2800         int x1,
2801         int y1,
2802         int x2,
2803         int y2,
2804         int cursor_x,
2805         int cursor_y,
2806         int buttonpress)
2807 {
2808         int result = 0;
2809         if(cursor_x >= x1 && cursor_x < x2)
2810         {
2811                 int miny = center_pixel + y1 - HANDLE_W / 2;
2812                 int maxy = center_pixel + y1 + HANDLE_W / 2;
2813                 if(cursor_y >= miny && cursor_y < maxy)
2814                 {
2815                         result = 1;
2816
2817 // Menu
2818                         if(buttonpress == 3)
2819                         {
2820                         }
2821                         else
2822 // Insert keyframe
2823                         if(buttonpress)
2824                         {
2825                                 Auto *current;
2826                                 double position = (double)(cursor_x +
2827                                                 mwindow->edl->local_session->view_start[pane->number]) *
2828                                         mwindow->edl->local_session->zoom_sample /
2829                                         mwindow->edl->session->sample_rate;
2830                                 int64_t unit_position = autos->track->to_units(position, 0);
2831                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
2832
2833                                 mwindow->undo->update_undo_before();
2834
2835                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
2836                                 ((IntAuto*)current)->value = new_value;
2837                                 // Toggle Autos don't respond to vertical zoom, they always show up
2838                                 // with "on" == 100% == line on top
2839                                 mwindow->session->drag_start_percentage = (float)new_value;
2840                                 mwindow->session->drag_start_position = current->position;
2841                                 mwindow->session->drag_origin_x = cursor_x;
2842                                 mwindow->session->drag_origin_y = cursor_y;
2843                         }
2844                 }
2845         };
2846
2847         return result;
2848 }
2849
2850 void TrackCanvas::calculate_viewport(Track *track,
2851         double &view_start,   // Seconds
2852         double &unit_start,
2853         double &view_end,     // Seconds
2854         double &unit_end,
2855         double &yscale,
2856         int &center_pixel,
2857         double &zoom_sample,
2858         double &zoom_units)
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         yscale = resource_h();
2870         center_pixel = track->y_pixel
2871                         - mwindow->edl->local_session->track_start[pane->number];
2872         if( track->show_assets() )
2873                 center_pixel += yscale / 2;
2874         if( track->show_titles() )
2875                 center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
2876         zoom_sample = mwindow->edl->local_session->zoom_sample;
2877
2878         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
2879 }
2880
2881 float TrackCanvas::percentage_to_value(float percentage,
2882         int is_toggle,
2883         Auto *reference,
2884         int autogrouptype)
2885 {
2886         float result;
2887         if(is_toggle)
2888         {
2889                 if(percentage > 0.5)
2890                         result = 1;
2891                 else
2892                         result = 0;
2893         }
2894         else
2895         {
2896                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2897                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2898                 float automation_range = automation_max - automation_min;
2899
2900                 result = percentage * automation_range + automation_min;
2901                 if(reference)
2902                 {
2903                         FloatAuto *ptr = (FloatAuto*)reference;
2904                         result -= ptr->get_value();
2905                 }
2906 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
2907         }
2908         return result;
2909 }
2910
2911
2912 void TrackCanvas::calculate_auto_position(double *x, double *y,
2913         double *in_x, double *in_y, double *out_x, double *out_y,
2914         Auto *current, double unit_start, double zoom_units, double yscale,
2915         int autogrouptype)
2916 {
2917         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2918         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2919         float automation_range = automation_max - automation_min;
2920         FloatAuto *ptr = (FloatAuto*)current;
2921         *x = (double)(ptr->position - unit_start) / zoom_units;
2922         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
2923
2924         if(in_x) {
2925 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
2926                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
2927         }
2928
2929         if(in_y) {
2930                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
2931                                 automation_min) / automation_range - 0.5) * -yscale;
2932         }
2933
2934         if(out_x) {
2935 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
2936                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
2937         }
2938
2939         if(out_y) {
2940                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
2941                                  automation_min) / automation_range - 0.5) * -yscale;
2942         }
2943 }
2944
2945
2946 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
2947                 int draw, int buttonpress, int x_offset, int y_offset, int color,
2948                 Auto* &auto_instance, int autogrouptype)
2949 {
2950         int result = 0;
2951         int center_pixel, draw_auto;
2952         double view_start, unit_start;
2953         double view_end, unit_end, yscale;
2954         double zoom_sample, zoom_units;
2955         double in_x2, in_y2, out_x2, out_y2;
2956         double slope;
2957         //int skip = 0;
2958
2959         auto_instance = 0;
2960
2961         if(draw) set_color(color);
2962
2963         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
2964                         yscale, center_pixel, zoom_sample, zoom_units);
2965
2966 // Get first auto before start
2967         Auto *current = 0, *previous = 0;
2968
2969         for( current = autos->last;
2970                 current && current->position >= unit_start;
2971                 current = PREVIOUS ) ;
2972
2973         Auto *first_auto = current ? current :
2974                  autos->first ? autos->first : autos->default_auto;
2975
2976         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
2977         if( first_auto ) {
2978                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
2979                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
2980         }
2981         if( current )
2982                 current = NEXT;
2983         else {
2984                 current = autos->first;
2985                 ax = 0;
2986         }
2987
2988         do {
2989                 //skip = 0;
2990                 draw_auto = 1;
2991
2992                 if(current) {
2993                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
2994                                 current, unit_start, zoom_units, yscale, autogrouptype);
2995                 }
2996                 else {
2997                         ax2 = get_w();
2998                         ay2 = ay;
2999                         //skip = 1;
3000                 }
3001
3002                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
3003
3004                 if(ax2 > get_w()) {
3005                         draw_auto = 0;
3006                         ax2 = get_w();
3007                         ay2 = ay + slope * (get_w() - ax);
3008                 }
3009
3010                 if(ax < 0) {
3011                         ay = ay + slope * (0 - ax);
3012                         ax = 0;
3013                 }
3014
3015 // Draw or test handle
3016                 if( current && !result && current != autos->default_auto ) {
3017                         if( !draw && track->record ) {
3018                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
3019                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
3020                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
3021                                         buttonpress, autogrouptype);
3022                                 if( result )
3023                                         auto_instance = current;
3024                         }
3025                         if( draw && draw_auto ) {
3026                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
3027                                         (int)in_x2 + x_offset, (int)in_y2,
3028                                         (int)out_x2 + x_offset, (int)out_y2,
3029                                         (int)center_pixel + y_offset, (int)yscale, color);
3030                         }
3031                 }
3032
3033 // Draw or test joining line
3034                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
3035                         result = test_floatline(center_pixel,
3036                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3037 // Exclude auto coverage from the end of the line.  The auto overlaps
3038                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
3039                                 buttonpress, autogrouptype);
3040                 }
3041                 if( draw )
3042                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
3043                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3044                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3045                                 color, autogrouptype);
3046
3047                 if( current ) {
3048                         previous = current;
3049                         current = NEXT;
3050                 }
3051
3052                 ax = ax2;  ay = ay2;
3053         } while( current && current->position <= unit_end && !result );
3054
3055         if( ax < get_w() && !result ) {
3056                 ax2 = get_w();  ay2 = ay;
3057                 if(!draw && track->record /* && buttonpress != 3 */ ) {
3058                         result = test_floatline(center_pixel,
3059                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3060                                 (int)ax, (int)ax2, cursor_x, cursor_y,
3061                                 buttonpress, autogrouptype);
3062                 }
3063                 if( draw )
3064                         draw_floatline(center_pixel,
3065                                 (FloatAuto*)previous, (FloatAuto*)current,
3066                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
3067                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
3068                                 color, autogrouptype);
3069         }
3070
3071         return result;
3072 }
3073
3074
3075 int TrackCanvas::do_int_autos(Track *track,
3076                 Autos *autos,
3077                 int cursor_x,
3078                 int cursor_y,
3079                 int draw,
3080                 int buttonpress,
3081                 int x_offset,
3082                 int y_offset,
3083                 int color,
3084                 Auto *&auto_instance)
3085 {
3086         int result = 0;
3087         double view_start;
3088         double unit_start;
3089         double view_end;
3090         double unit_end;
3091         double yscale;
3092         int center_pixel;
3093         double zoom_sample;
3094         double zoom_units;
3095         double ax, ay, ax2, ay2;
3096
3097         auto_instance = 0;
3098
3099         if(draw) set_color(color);
3100
3101         calculate_viewport(track,
3102                 view_start,
3103                 unit_start,
3104                 view_end,
3105                 unit_end,
3106                 yscale,
3107                 center_pixel,
3108                 zoom_sample,
3109                 zoom_units);
3110
3111
3112         double high = -yscale * 0.8 / 2;
3113         double low = yscale * 0.8 / 2;
3114
3115 // Get first auto before start
3116         Auto *current;
3117         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
3118                 ;
3119
3120         if(current)
3121         {
3122                 ax = 0;
3123                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3124                 current = NEXT;
3125         }
3126         else
3127         {
3128                 current = autos->first ? autos->first : autos->default_auto;
3129                 if(current)
3130                 {
3131                         ax = 0;
3132                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3133                 }
3134                 else
3135                 {
3136                         ax = 0;
3137                         ay = yscale;
3138                 }
3139         }
3140
3141         do
3142         {
3143                 if(current)
3144                 {
3145                         ax2 = (double)(current->position - unit_start) / zoom_units;
3146                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3147                 }
3148                 else
3149                 {
3150                         ax2 = get_w();
3151                         ay2 = ay;
3152                 }
3153
3154                 if(ax2 > get_w()) ax2 = get_w();
3155
3156                 if(current && !result)
3157                 {
3158                         if(current != autos->default_auto)
3159                         {
3160                                 if(!draw)
3161                                 {
3162                                         if(track->record)
3163                                         {
3164                                                 result = test_auto(current,
3165                                                         (int)ax2,
3166                                                         (int)ay2,
3167                                                         (int)center_pixel,
3168                                                         (int)yscale,
3169                                                         cursor_x,
3170                                                         cursor_y,
3171                                                         buttonpress);
3172                                                 if (result)
3173                                                         auto_instance = current;
3174                                         }
3175                                 }
3176                                 else
3177                                         draw_auto(current,
3178                                                 (int)ax2 + x_offset,
3179                                                 (int)ay2 + y_offset,
3180                                                 (int)center_pixel,
3181                                                 (int)yscale);
3182                         }
3183
3184                         current = NEXT;
3185                 }
3186
3187                 if(!draw)
3188                 {
3189                         if(!result)
3190                         {
3191                                 if(track->record /* && buttonpress != 3 */)
3192                                 {
3193                                         result = test_toggleline(autos,
3194                                                 center_pixel,
3195                                                 (int)ax,
3196                                                 (int)ay,
3197                                                 (int)ax2,
3198                                                 (int)ay2,
3199                                                 cursor_x,
3200                                                 cursor_y,
3201                                                 buttonpress);
3202                                 }
3203                         }
3204                 }
3205                 else
3206                         draw_toggleline(center_pixel + y_offset,
3207                                 (int)ax,
3208                                 (int)ay,
3209                                 (int)ax2,
3210                                 (int)ay2);
3211
3212                 ax = ax2;
3213                 ay = ay2;
3214         }while(current && current->position <= unit_end && !result);
3215
3216         if(ax < get_w() && !result)
3217         {
3218                 ax2 = get_w();
3219                 ay2 = ay;
3220                 if(!draw)
3221                 {
3222                         if(track->record /* && buttonpress != 3 */)
3223                         {
3224                                 result = test_toggleline(autos,
3225                                         center_pixel,
3226                                         (int)ax,
3227                                         (int)ay,
3228                                         (int)ax2,
3229                                         (int)ay2,
3230                                         cursor_x,
3231                                         cursor_y,
3232                                         buttonpress);
3233                         }
3234                 }
3235                 else
3236                         draw_toggleline(center_pixel + y_offset,
3237                                 (int)ax,
3238                                 (int)ay,
3239                                 (int)ax2,
3240                                 (int)ay2);
3241         }
3242         return result;
3243 }
3244
3245 int TrackCanvas::do_autos(Track *track,
3246                 Autos *autos,
3247                 int cursor_x,
3248                 int cursor_y,
3249                 int draw,
3250                 int buttonpress,
3251                 BC_Pixmap *pixmap,
3252                 Auto * &auto_instance,
3253                 int &rerender)
3254 {
3255         int result = 0;
3256
3257         double view_start;
3258         double unit_start;
3259         double view_end;
3260         double unit_end;
3261         double yscale;
3262         int center_pixel;
3263         double zoom_sample;
3264         double zoom_units;
3265
3266         calculate_viewport(track,
3267                 view_start,
3268                 unit_start,
3269                 view_end,
3270                 unit_end,
3271                 yscale,
3272                 center_pixel,
3273                 zoom_sample,
3274                 zoom_units);
3275
3276         Auto *current;
3277         auto_instance = 0;
3278
3279         for(current = autos->first; current && !result; current = NEXT)
3280         {
3281                 if(current->position >= unit_start && current->position < unit_end)
3282                 {
3283                         int64_t x, y;
3284                         x = (int64_t)((double)(current->position - unit_start) /
3285                                 zoom_units - (pixmap->get_w() / 2.0 + 0.5));
3286                         y = center_pixel - pixmap->get_h() / 2;
3287
3288                         if(!draw)
3289                         {
3290                                 if(cursor_x >= x && cursor_y >= y &&
3291                                         cursor_x < x + pixmap->get_w() &&
3292                                         cursor_y < y + pixmap->get_h())
3293                                 {
3294                                         result = 1;
3295                                         auto_instance = current;
3296
3297                                         if(buttonpress && (buttonpress != 3))
3298                                         {
3299                                                 mwindow->session->drag_auto = current;
3300                                                 mwindow->session->drag_start_position = current->position;
3301                                                 mwindow->session->drag_origin_x = cursor_x;
3302                                                 mwindow->session->drag_origin_y = cursor_y;
3303
3304                                                 double position = autos->track->from_units(current->position);
3305                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3306                                                         mwindow->edl->local_session->get_selectionend(1)) /
3307                                                         2;
3308
3309                                                 if(!shift_down())
3310                                                 {
3311                                                         mwindow->edl->local_session->set_selectionstart(position);
3312                                                         mwindow->edl->local_session->set_selectionend(position);
3313                                                 }
3314                                                 else
3315                                                 if(position < center)
3316                                                 {
3317                                                         mwindow->edl->local_session->set_selectionstart(position);
3318                                                 }
3319                                                 else
3320                                                         mwindow->edl->local_session->set_selectionend(position);
3321
3322                                                 rerender = 1;
3323                                         }
3324                                 }
3325                         }
3326                         else
3327                                 draw_pixmap(pixmap, x, y);
3328                 }
3329         }
3330
3331
3332         return result;
3333 }
3334
3335 // so this means it is always >0 when keyframe is found
3336 int TrackCanvas::do_plugin_autos(Track *track, int cursor_x, int cursor_y,
3337                 int draw, int buttonpress, Plugin* &keyframe_plugin,
3338                 KeyFrame* &keyframe_instance)
3339 {
3340         int result = 0;
3341
3342         double view_start;
3343         double unit_start;
3344         double view_end;
3345         double unit_end;
3346         double yscale;
3347         int center_pixel;
3348         double zoom_sample;
3349         double zoom_units;
3350
3351         if(!track->expand_view) return 0;
3352
3353         calculate_viewport(track,
3354                 view_start,
3355                 unit_start,
3356                 view_end,
3357                 unit_end,
3358                 yscale,
3359                 center_pixel,
3360                 zoom_sample,
3361                 zoom_units);
3362
3363
3364
3365         for(int i = 0; i < track->plugin_set.total && !result; i++)
3366         {
3367                 PluginSet *plugin_set = track->plugin_set.values[i];
3368                 int center_pixel = track->y_pixel -
3369                         mwindow->edl->local_session->track_start[pane->number];
3370                 if( track->show_titles() )
3371                         center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
3372                 if( track->show_assets() )
3373                         center_pixel += resource_h();
3374                 center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
3375
3376                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3377                         plugin && !result;
3378                         plugin = (Plugin*)plugin->next)
3379                 {
3380                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3381                                 keyframe && !result;
3382                                 keyframe = (KeyFrame*)keyframe->next)
3383                         {
3384 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3385                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3386                                 {
3387                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3388                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3389
3390 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3391                                         if(!draw)
3392                                         {
3393                                                 if(cursor_x >= x && cursor_y >= y &&
3394                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3395                                                         cursor_y < y + keyframe_pixmap->get_h())
3396                                                 {
3397                                                         result = 1;
3398                                                         keyframe_plugin = plugin;
3399                                                         keyframe_instance = keyframe;
3400
3401                                                         if(buttonpress)
3402                                                         {
3403                                                                 mwindow->session->drag_auto = keyframe;
3404                                                                 mwindow->session->drag_start_position = keyframe->position;
3405                                                                 mwindow->session->drag_origin_x = cursor_x;
3406                                                                 mwindow->session->drag_origin_y = cursor_y;
3407
3408                                                                 double position = track->from_units(keyframe->position);
3409                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3410                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3411                                                                         2;
3412
3413                                                                 if(!shift_down())
3414                                                                 {
3415                                                                         mwindow->edl->local_session->set_selectionstart(position);
3416                                                                         mwindow->edl->local_session->set_selectionend(position);
3417                                                                 }
3418                                                                 else
3419                                                                 if(position < center)
3420                                                                 {
3421                                                                         mwindow->edl->local_session->set_selectionstart(position);
3422                                                                 }
3423                                                                 else
3424                                                                         mwindow->edl->local_session->set_selectionend(position);
3425                                                         }
3426                                                 }
3427                                         }
3428                                         else
3429                                                 draw_pixmap(keyframe_pixmap,
3430                                                         x,
3431                                                         y);
3432                                 }
3433                         }
3434                 }
3435         }
3436
3437
3438
3439 //      if(buttonpress && buttonpress != 3 && result)
3440 //      {
3441 //              mwindow->undo->update_undo_before();
3442 //      }
3443
3444         return result;
3445 }
3446
3447 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color)
3448 {
3449         Track *track = auto_keyframe->autos->track;
3450         int autogrouptype = auto_keyframe->autos->get_type();
3451
3452         int center_pixel;
3453         double view_start, unit_start;
3454         double view_end, unit_end, yscale;
3455         double zoom_sample, zoom_units;
3456
3457         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3458                         yscale, center_pixel, zoom_sample, zoom_units);
3459
3460         double ax = 0, ay = 0;
3461         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3462                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3463
3464         set_color(color);
3465         draw_line(ax, 0, ax, get_h());
3466         return 0;
3467 }
3468
3469 void TrackCanvas::draw_overlays()
3470 {
3471         int new_cursor, update_cursor, rerender;
3472
3473 // Move background pixmap to foreground pixmap
3474         draw_pixmap(background_pixmap,
3475                 0,
3476                 0,
3477                 get_w(),
3478                 get_h(),
3479                 0,
3480                 0);
3481
3482 // In/Out points
3483         draw_inout_points();
3484
3485 // Transitions
3486         draw_transitions();
3487
3488 // Plugins
3489         draw_plugins();
3490         draw_hard_edges();
3491
3492 // Loop points
3493         draw_loop_points();
3494         draw_brender_range();
3495
3496 // Highlighted areas
3497         draw_highlighting();
3498
3499 // Automation
3500         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3501
3502 // Selection cursor
3503         if(pane->cursor) pane->cursor->restore(1);
3504
3505 // Handle dragging
3506         draw_drag_handle();
3507
3508 // Playback cursor
3509         draw_playback_cursor();
3510
3511         draw_keyframe_reticle();
3512
3513         show_window(0);
3514 }
3515
3516 int TrackCanvas::activate()
3517 {
3518         if(!active)
3519         {
3520 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3521 //BC_Signals::dump_stack();
3522                 get_top_level()->deactivate();
3523                 active = 1;
3524                 set_active_subwindow(this);
3525                 pane->cursor->activate();
3526                 gui->focused_pane = pane->number;
3527         }
3528         return 0;
3529 }
3530
3531 int TrackCanvas::deactivate()
3532 {
3533         if(active)
3534         {
3535                 active = 0;
3536                 pane->cursor->deactivate();
3537         }
3538         return 0;
3539 }
3540
3541
3542 void TrackCanvas::update_drag_handle()
3543 {
3544         double new_position;
3545         int cursor_x = get_cursor_x();
3546
3547         new_position =
3548                 (double)(cursor_x +
3549                 mwindow->edl->local_session->view_start[pane->number]) *
3550                 mwindow->edl->local_session->zoom_sample /
3551                 mwindow->edl->session->sample_rate;
3552
3553         new_position =
3554                 mwindow->edl->align_to_frame(new_position, 0);
3555
3556         if( ctrl_down() && alt_down() ) {
3557 #define snapper(v) do { \
3558         double pos = (v); \
3559         if( pos < 0 ) break; \
3560         double dist = fabs(new_position - pos); \
3561         if( dist >= snap_min ) break; \
3562         snap_position = pos;  snap_min = dist; \
3563 } while(0)
3564                 double snap_position = new_position;
3565                 double snap_min = DBL_MAX;
3566                 if( mwindow->edl->local_session->inpoint_valid() )
3567                         snapper(mwindow->edl->local_session->get_inpoint());
3568                 if( mwindow->edl->local_session->outpoint_valid() )
3569                         snapper(mwindow->edl->local_session->get_outpoint());
3570                 snapper(mwindow->edl->prev_edit(new_position));
3571                 snapper(mwindow->edl->next_edit(new_position));
3572                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3573                 if( prev_label ) snapper(prev_label->position);
3574                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3575                 if( next_label ) snapper(next_label->position);
3576                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3577                         mwindow->edl->local_session->zoom_sample -
3578                         mwindow->edl->local_session->view_start[pane->number];
3579                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3580                         snapped = 1;
3581                         new_position = snap_position;
3582                 }
3583 #undef snapper
3584         }
3585
3586         if(new_position != mwindow->session->drag_position)
3587         {
3588                 mwindow->session->drag_position = new_position;
3589                 gui->mainclock->update(new_position);
3590
3591
3592                 timebar_position = new_position;
3593                 gui->update_timebar(0);
3594 // Que the CWindow.  Doesn't do anything if selectionstart and selection end
3595 // aren't changed.
3596 //              mwindow->cwindow->update(1, 0, 0);
3597         }
3598 }
3599
3600 int TrackCanvas::update_drag_edit()
3601 {
3602         int result = 0;
3603
3604
3605
3606         return result;
3607 }
3608
3609 int TrackCanvas::get_drag_values(float *percentage,
3610         int64_t *position,
3611         int do_clamp,
3612         int cursor_x,
3613         int cursor_y,
3614         Auto *current)
3615 {
3616         //int x = cursor_x - mwindow->session->drag_origin_x;
3617         //int y = cursor_y - mwindow->session->drag_origin_y;
3618         *percentage = 0;
3619         *position = 0;
3620
3621         if(!current->autos->track->record) return 1;
3622         double view_start;
3623         double unit_start;
3624         double view_end;
3625         double unit_end;
3626         double yscale;
3627         int center_pixel;
3628         double zoom_sample;
3629         double zoom_units;
3630
3631         calculate_viewport(current->autos->track,
3632                 view_start,
3633                 unit_start,
3634                 view_end,
3635                 unit_end,
3636                 yscale,
3637                 center_pixel,
3638                 zoom_sample,
3639                 zoom_units);
3640
3641         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3642                 yscale +
3643                 mwindow->session->drag_start_percentage;
3644         if(do_clamp) CLAMP(*percentage, 0, 1);
3645
3646         *position = Units::to_int64(zoom_units *
3647                 (cursor_x - mwindow->session->drag_origin_x) +
3648                 mwindow->session->drag_start_position + 0.5);
3649
3650         if((do_clamp) && *position < 0) *position = 0;
3651         return 0;
3652 }
3653
3654
3655 #define UPDATE_DRAG_HEAD(do_clamp) \
3656         int result = 0, center_pixel; \
3657         if(!current->autos->track->record) return 0; \
3658         double view_start, unit_start, view_end, unit_end; \
3659         double yscale, zoom_sample, zoom_units; \
3660  \
3661         calculate_viewport(current->autos->track,  \
3662                 view_start, unit_start, view_end, unit_end, \
3663                 yscale, center_pixel, zoom_sample, zoom_units); \
3664  \
3665         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3666                 yscale +  mwindow->session->drag_start_percentage; \
3667         if(do_clamp) CLAMP(percentage, 0, 1); \
3668  \
3669         int64_t position = Units::to_int64(zoom_units * \
3670                 (cursor_x - mwindow->session->drag_origin_x) + \
3671                 mwindow->session->drag_start_position); \
3672         if((do_clamp) && position < 0) position = 0;
3673
3674
3675 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3676 {
3677         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
3678
3679         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
3680         int x = cursor_x - mwindow->session->drag_origin_x;
3681         int y = cursor_y - mwindow->session->drag_origin_y;
3682         float value, old_value;
3683
3684         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
3685 // not really editing the node, rather start editing the curve
3686 // tangent is editable and drag movement is significant
3687                 if( (FloatAuto::FREE == current->curve_mode ||
3688                      FloatAuto::TFREE==current->curve_mode) &&
3689                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
3690                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
3691         }
3692
3693         switch(mwindow->session->drag_handle) {
3694         case 0: // Center
3695 // Snap to nearby values
3696                 old_value = current->get_value();
3697                 if(shift_down()) {
3698                         double value1, value2, distance1, distance2;
3699
3700                         if(current->previous) {
3701                                 int autogrouptype = current->previous->autos->autogrouptype;
3702                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3703                                 value1 = ((FloatAuto*)current->previous)->get_value();
3704                                 distance1 = fabs(value - value1);
3705                                 current->set_value(value1);
3706                         }
3707
3708                         if(current->next) {
3709                                 int autogrouptype = current->next->autos->autogrouptype;
3710                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3711                                 value2 = ((FloatAuto*)current->next)->get_value();
3712                                 distance2 = fabs(value - value2);
3713                                 if(!current->previous || distance2 < distance1) {
3714                                         current->set_value(value2);
3715                                 }
3716                         }
3717
3718                         if(!current->previous && !current->next) {
3719                                 current->set_value( ((FloatAutos*)current->autos)->default_);
3720                         }
3721                         value = current->get_value();
3722                 }
3723                 else {
3724                         int autogrouptype = current->autos->autogrouptype;
3725                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
3726                 }
3727
3728                 if(alt_down() && !shift_down())
3729 // ALT constrains movement: fixed position, only changing the value
3730                         position = mwindow->session->drag_start_position;
3731
3732                 if(value != old_value || position != current->position) {
3733                         result = 1;
3734                         float change = value - old_value;
3735                         current->adjust_to_new_coordinates(position, value);
3736                         synchronize_autos(change, current->autos->track, current, 0);
3737                         show_message(current, 1,", %.2f", current->get_value());
3738                 }
3739                 break;
3740
3741 // In control
3742         case 1: {
3743                 int autogrouptype = current->autos->autogrouptype;
3744                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3745                 if(value != current->get_control_in_value())
3746                 {
3747                         result = 1;
3748                         // note: (position,value) need not be at the location of the ctrl point,
3749                         // but could be somewhere in between on the curve (or even outward or
3750                         // on the opposit side). We set the new control point such as
3751                         // to point the curve through (position,value)
3752                         current->set_control_in_value(
3753                                 value * levered_position(position - current->position,
3754                                                          current->get_control_in_position()));
3755                         synchronize_autos(0, current->autos->track, current, 0);
3756                         show_message(current, 1,", %.2f", current->get_control_in_value());
3757                 }
3758                 break; }
3759
3760 // Out control
3761         case 2: {
3762                 int autogrouptype = current->autos->autogrouptype;
3763                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3764                 if(value != current->get_control_out_value()) {
3765                         result = 1;
3766                         current->set_control_out_value(
3767                                 value * levered_position(position - current->position,
3768                                                          current->get_control_out_position()));
3769                         synchronize_autos(0, current->autos->track, current, 0);
3770                         show_message(current, 1,", %.2f", current->get_control_out_value());
3771                 }
3772                 break; }
3773         }
3774
3775         return result;
3776 }
3777
3778 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
3779 {
3780         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
3781
3782         UPDATE_DRAG_HEAD(1);
3783         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
3784
3785         if(value != current->value || position != current->position)
3786         {
3787                 result = 1;
3788                 current->value = value;
3789                 current->position = position;
3790                 show_message(current, 0,", %d", current->value);
3791         }
3792
3793         return result;
3794 }
3795
3796 // Autos which can't change value through dragging.
3797
3798 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
3799 {
3800         Auto *current = (Auto*)mwindow->session->drag_auto;
3801
3802         UPDATE_DRAG_HEAD(1)
3803         if(position != current->position)
3804         {
3805                 result = 1;
3806                 current->position = position;
3807                 show_message(current, 0,"");
3808
3809                 double position_f = current->autos->track->from_units(current->position);
3810                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
3811                         mwindow->edl->local_session->get_selectionend(1)) /
3812                         2;
3813                 if(!shift_down())
3814                 {
3815                         mwindow->edl->local_session->set_selectionstart(position_f);
3816                         mwindow->edl->local_session->set_selectionend(position_f);
3817                 }
3818                 else
3819                 if(position_f < center_f)
3820                 {
3821                         mwindow->edl->local_session->set_selectionstart(position_f);
3822                 }
3823                 else
3824                         mwindow->edl->local_session->set_selectionend(position_f);
3825         }
3826
3827
3828         return result;
3829 }
3830
3831 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
3832 {
3833         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
3834
3835         UPDATE_DRAG_HEAD(1)
3836         if(position != current->position)
3837         {
3838 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
3839                 Track *track = current->autos->track;
3840                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
3841                 PluginSet *pluginset;
3842                 Plugin *plugin = 0;
3843 // figure out the correct pluginset & correct plugin
3844                 int found = 0;
3845                 for(int i = 0; i < track->plugin_set.total; i++)
3846                 {
3847                         pluginset = track->plugin_set.values[i];
3848                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
3849                         {
3850                                 KeyFrames *keyframes = plugin->keyframes;
3851                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
3852                                         currentkeyframe;
3853                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
3854                                 {
3855                                         if (currentkeyframe == current)
3856                                         {
3857                                                 found = 1;
3858                                                 break;
3859                                         }
3860
3861                                 }
3862                                 if (found) break;
3863                         }
3864                         if (found) break;
3865                 }
3866
3867                 mwindow->session->plugin_highlighted = plugin;
3868                 mwindow->session->track_highlighted = track;
3869                 result = 1;
3870                 current->position = position;
3871                 show_message(current, 0,"");
3872
3873                 double position_f = current->autos->track->from_units(current->position);
3874                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
3875                         mwindow->edl->local_session->get_selectionend(1)) /
3876                         2;
3877                 if(!shift_down())
3878                 {
3879                         mwindow->edl->local_session->set_selectionstart(position_f);
3880                         mwindow->edl->local_session->set_selectionend(position_f);
3881                 }
3882                 else
3883                 if(position_f < center_f)
3884                 {
3885                         mwindow->edl->local_session->set_selectionstart(position_f);
3886                 }
3887                 else
3888                         mwindow->edl->local_session->set_selectionend(position_f);
3889         }
3890
3891
3892         return result;
3893 }
3894
3895 void TrackCanvas::update_drag_caption()
3896 {
3897         switch(mwindow->session->current_operation)
3898         {
3899                 case DRAG_FADE:
3900
3901                         break;
3902         }
3903 }
3904
3905
3906
3907 int TrackCanvas::cursor_update(int in_motion)
3908 {
3909         int result = 0;
3910         int cursor_x = 0;
3911         int cursor_y = 0;
3912         int update_clock = 0;
3913         int update_zoom = 0;
3914         int update_scroll = 0;
3915         int update_overlay = 0;
3916         int update_cursor = 0;
3917         int new_cursor = 0;
3918         int rerender = 0;
3919         double position = 0.;
3920 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
3921
3922 // Default cursor
3923         switch(mwindow->edl->session->editing_mode)
3924         {
3925                 case EDITING_ARROW: new_cursor = ARROW_CURSOR; break;
3926                 case EDITING_IBEAM: new_cursor = IBEAM_CURSOR; break;
3927         }
3928
3929         switch(mwindow->session->current_operation)
3930         {
3931                 case DRAG_EDITHANDLE1:
3932 // Outside threshold.  Upgrade status
3933                         if(active)
3934                         {
3935                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
3936                                 {
3937                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
3938                                         update_overlay = 1;
3939                                 }
3940                         }
3941                         break;
3942
3943                 case DRAG_EDITHANDLE2:
3944                         if(active)
3945                         {
3946                                 update_drag_handle();
3947                                 update_overlay = 1;
3948                         }
3949                         break;
3950
3951                 case DRAG_PLUGINHANDLE1:
3952                         if(active)
3953                         {
3954                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
3955                                 {
3956                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
3957                                         update_overlay = 1;
3958                                 }
3959                         }
3960                         break;
3961
3962                 case DRAG_PLUGINHANDLE2:
3963                         if(active)
3964                         {
3965                                 update_drag_handle();
3966                                 update_overlay = 1;
3967                         }
3968                         break;
3969
3970 // Rubber band curves
3971                 case DRAG_FADE:
3972                 case DRAG_SPEED:
3973                 case DRAG_CZOOM:
3974                 case DRAG_PZOOM:
3975                 case DRAG_CAMERA_X:
3976                 case DRAG_CAMERA_Y:
3977                 case DRAG_CAMERA_Z:
3978                 case DRAG_PROJECTOR_X:
3979                 case DRAG_PROJECTOR_Y:
3980                 case DRAG_PROJECTOR_Z:
3981                         if(active) rerender = update_overlay =
3982                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
3983                         if( rerender && mwindow->session->current_operation == DRAG_SPEED )
3984                                 mwindow->speed_after(!in_motion ? 1 : 0);
3985                         break;
3986
3987                 case DRAG_PLAY:
3988                         if(active) rerender = update_overlay =
3989                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
3990                         break;
3991
3992                 case DRAG_MUTE:
3993                         if(active) rerender = update_overlay =
3994                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
3995                         break;
3996
3997 // Keyframe icons are sticky
3998                 case DRAG_PAN_PRE:
3999                 case DRAG_MASK_PRE:
4000                 case DRAG_MODE_PRE:
4001                 case DRAG_PLUGINKEY_PRE:
4002                         if(active) {
4003                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4004                                         mwindow->session->current_operation++;
4005                                         update_overlay = 1;
4006
4007                                         mwindow->undo->update_undo_before();
4008                                 }
4009                         }
4010                         break;
4011
4012                 case DRAG_PAN:
4013                 case DRAG_MASK:
4014                 case DRAG_MODE:
4015                         if(active) rerender = update_overlay =
4016                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4017                         break;
4018
4019                 case DRAG_PLUGINKEY:
4020                         if(active) rerender = update_overlay =
4021                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4022                         break;
4023
4024                 case SELECT_REGION:
4025                         if(active) {
4026                                 cursor_x = get_cursor_x();
4027                                 cursor_y = get_cursor_y();
4028                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4029                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4030
4031                                 position = mwindow->edl->align_to_frame(position, 0);
4032                                 position = MAX(position, 0);
4033
4034                                 double start = mwindow->edl->local_session->get_selectionstart(1);
4035                                 double end = mwindow->edl->local_session->get_selectionend(1);
4036                                 if(position < selection_midpoint) {
4037                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4038                                         mwindow->edl->local_session->set_selectionstart(position);
4039                                 }
4040                                 else {
4041                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4042                                         mwindow->edl->local_session->set_selectionend(position);
4043                                 }
4044         // Que the CWindow
4045                                 gui->unlock_window();
4046                                 int dir =
4047                                         start != mwindow->edl->local_session->get_selectionstart(1) ? 1 :
4048                                         end != mwindow->edl->local_session->get_selectionend(1) ? -1 : 0;
4049                                 mwindow->cwindow->update(dir, 0, 0, 0, 1);
4050                                 gui->lock_window("TrackCanvas::cursor_update 1");
4051         // Update the faders
4052                                 mwindow->update_plugin_guis();
4053                                 gui->update_patchbay();
4054
4055                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4056
4057                                 gui->hide_cursor(0);
4058                                 gui->draw_cursor(1);
4059                                 gui->update_timebar(0);
4060                                 gui->flash_canvas(1);
4061                                 result = 1;
4062                                 update_clock = 1;
4063                                 update_zoom = 1;
4064                                 update_scroll = 1;
4065                         }
4066                         break;
4067
4068                 default:
4069                         if(is_event_win() && cursor_inside()) {
4070 // Update clocks
4071                                 cursor_x = get_cursor_x();
4072                                 position = (double)cursor_x *
4073                                         (double)mwindow->edl->local_session->zoom_sample /
4074                                         (double)mwindow->edl->session->sample_rate +
4075                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4076                                         (double)mwindow->edl->local_session->zoom_sample /
4077                                         (double)mwindow->edl->session->sample_rate;
4078                                 position = mwindow->edl->align_to_frame(position, 0);
4079                                 update_clock = 1;
4080
4081 // set all timebars
4082                                 for(int i = 0; i < TOTAL_PANES; i++)
4083                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4084
4085 //printf("TrackCanvas::cursor_update %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4086                                 gui->update_timebar(0);
4087 // Update cursor
4088                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4089                                                 0, new_cursor, update_cursor)) break;
4090                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4091                                         0, 0, new_cursor, update_cursor, rerender)) break;
4092                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4093                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4094 // Plugin boundaries
4095                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4096                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4097                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4098                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4099                         }
4100                         break;
4101         }
4102
4103 //printf("TrackCanvas::cursor_update 1\n");
4104         if(update_cursor && new_cursor != get_cursor())
4105         {
4106                 set_cursor(new_cursor, 0, 1);
4107         }
4108
4109 //printf("TrackCanvas::cursor_update 1 %d\n", rerender);
4110         if(rerender && render_timer->get_difference() > 0.25 ) {
4111                 render_timer->update();
4112                 mwindow->restart_brender();
4113                 mwindow->sync_parameters(CHANGE_PARAMS);
4114                 mwindow->update_plugin_guis();
4115                 gui->unlock_window();
4116                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4117                 gui->lock_window("TrackCanvas::cursor_update 2");
4118         }
4119         if(rerender) {
4120 // Update faders
4121                 gui->update_patchbay();
4122         }
4123
4124
4125         if(update_clock) {
4126                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4127                         gui->mainclock->update(position);
4128         }
4129
4130         if(update_zoom) {
4131                 gui->zoombar->update();
4132         }
4133
4134         if(update_scroll) {
4135                 if(!drag_scroll &&
4136                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4137                         start_dragscroll();
4138                 else
4139                 if(drag_scroll &&
4140                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4141                         stop_dragscroll();
4142         }
4143
4144         if(update_overlay) {
4145                 gui->draw_overlays(1);
4146         }
4147
4148 //printf("TrackCanvas::cursor_update %d\n", __LINE__);
4149         return result;
4150 }
4151
4152 int TrackCanvas::cursor_motion_event()
4153 {
4154         return cursor_update(1);
4155 }
4156
4157 void TrackCanvas::start_dragscroll()
4158 {
4159         if(!drag_scroll) {
4160                 drag_scroll = 1;
4161                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4162 //printf("TrackCanvas::start_dragscroll 1\n");
4163         }
4164 }
4165
4166 void TrackCanvas::stop_dragscroll()
4167 {
4168         if(drag_scroll) {
4169                 drag_scroll = 0;
4170                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4171 //printf("TrackCanvas::stop_dragscroll 1\n");
4172         }
4173 }
4174
4175 int TrackCanvas::repeat_event(int64_t duration)
4176 {
4177         if(!drag_scroll) return 0;
4178         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4179
4180         int sample_movement = 0;
4181         int track_movement = 0;
4182         int64_t x_distance = 0;
4183         int64_t y_distance = 0;
4184         double position = 0;
4185         int result = 0;
4186
4187         switch(mwindow->session->current_operation) {
4188                 case SELECT_REGION:
4189 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4190                 if(get_cursor_x() > get_w()) {
4191                                 x_distance = get_cursor_x() - get_w();
4192                                 sample_movement = 1;
4193                 }
4194                 else if(get_cursor_x() < 0) {
4195                         x_distance = get_cursor_x();
4196                         sample_movement = 1;
4197                 }
4198
4199                 if(get_cursor_y() > get_h()) {
4200                         y_distance = get_cursor_y() - get_h();
4201                         track_movement = 1;
4202                 }
4203                 else if(get_cursor_y() < 0) {
4204                         y_distance = get_cursor_y();
4205                         track_movement = 1;
4206                 }
4207                 result = 1;
4208                 break;
4209         }
4210
4211         if(sample_movement) {
4212                 position = (double)(get_cursor_x() +
4213                         mwindow->edl->local_session->view_start[pane->number] +
4214                         x_distance) *
4215                         mwindow->edl->local_session->zoom_sample /
4216                         mwindow->edl->session->sample_rate;
4217                 position = mwindow->edl->align_to_frame(position, 0);
4218                 position = MAX(position, 0);
4219
4220 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4221                 switch(mwindow->session->current_operation) {
4222                 case SELECT_REGION:
4223                         if(position < selection_midpoint) {
4224                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4225                                 mwindow->edl->local_session->set_selectionstart(position);
4226 // Que the CWindow
4227                                 gui->unlock_window();
4228                                 mwindow->cwindow->update(1, 0, 0);
4229                                 gui->lock_window("TrackCanvas::repeat_event");
4230 // Update the faders
4231                                 mwindow->update_plugin_guis();
4232                                 gui->update_patchbay();
4233                         }
4234                         else {
4235                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4236                                 mwindow->edl->local_session->set_selectionend(position);
4237 // Don't que the CWindow
4238                         }
4239                         break;
4240                 }
4241
4242                 mwindow->samplemovement(
4243                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4244                         pane->number);
4245         }
4246
4247         if(track_movement) {
4248                 mwindow->trackmovement(y_distance, pane->number);
4249         }
4250
4251         return result;
4252 }
4253
4254 int TrackCanvas::button_release_event()
4255 {
4256         int redraw = -1, update_overlay = 0;
4257         int result = 0, load_flags = 0;
4258
4259 // printf("TrackCanvas::button_release_event %d\n",
4260 // mwindow->session->current_operation);
4261         if(active) {
4262                 switch(mwindow->session->current_operation) {
4263                 case DRAG_EDITHANDLE2:
4264                         mwindow->session->current_operation = NO_OPERATION;
4265                         drag_scroll = 0;
4266                         result = 1;
4267
4268                         end_edithandle_selection();
4269                         break;
4270
4271                 case DRAG_EDITHANDLE1:
4272                         mwindow->session->current_operation = NO_OPERATION;
4273                         drag_scroll = 0;
4274                         result = 1;
4275                         break;
4276
4277                 case DRAG_PLUGINHANDLE2:
4278                         mwindow->session->current_operation = NO_OPERATION;
4279                         drag_scroll = 0;
4280                         result = 1;
4281
4282                         end_pluginhandle_selection();
4283                         break;
4284
4285                 case DRAG_PLUGINHANDLE1:
4286                         mwindow->session->current_operation = NO_OPERATION;
4287                         drag_scroll = 0;
4288                         result = 1;
4289                         break;
4290
4291                 case DRAG_SPEED:
4292                         redraw = FORCE_REDRAW;
4293                         load_flags |= LOAD_EDITS;
4294                 case DRAG_FADE:
4295 // delete the drag_auto_gang first and remove out of order keys
4296                         synchronize_autos(0, 0, 0, -1);
4297                 case DRAG_CZOOM:
4298                 case DRAG_PZOOM:
4299                 case DRAG_PLAY:
4300                 case DRAG_MUTE:
4301                 case DRAG_MASK:
4302                 case DRAG_MODE:
4303                 case DRAG_PAN:
4304                 case DRAG_CAMERA_X:
4305                 case DRAG_CAMERA_Y:
4306                 case DRAG_CAMERA_Z:
4307                 case DRAG_PROJECTOR_X:
4308                 case DRAG_PROJECTOR_Y:
4309                 case DRAG_PROJECTOR_Z:
4310                 case DRAG_PLUGINKEY:
4311                         load_flags |= LOAD_AUTOMATION;
4312                         mwindow->session->current_operation = NO_OPERATION;
4313                         mwindow->session->drag_handle = 0;
4314 // Remove any out-of-order keyframe
4315                         if(mwindow->session->drag_auto) {
4316                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4317                                                 mwindow->session->drag_auto);
4318 //                              mwindow->session->drag_auto->autos->optimize();
4319                                 update_overlay = 1;
4320                         }
4321
4322                         mwindow->undo->update_undo_after(_("keyframe"), load_flags);
4323                         result = 1;
4324                         break;
4325
4326                 case DRAG_EDIT:
4327                 case DRAG_AEFFECT_COPY:
4328                 case DRAG_VEFFECT_COPY:
4329 // Trap in drag stop
4330                         break;
4331
4332
4333                 default:
4334                         if(mwindow->session->current_operation) {
4335 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4336 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4337 //                              }
4338
4339                                 mwindow->session->current_operation = NO_OPERATION;
4340                                 drag_scroll = 0;
4341 // Traps button release events
4342 //                              result = 1;
4343                         }
4344                         break;
4345                 }
4346         }
4347
4348         if (result)
4349                 cursor_update(0);
4350
4351         if(update_overlay) {
4352                 gui->draw_overlays(1);
4353         }
4354         if(redraw >= 0) {
4355                 gui->draw_canvas(redraw, 0);
4356                 gui->flash_canvas(1);
4357         }
4358         return result;
4359 }
4360
4361 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4362         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4363 {
4364         Edit *edit_result = 0;
4365         int handle_result = -1;
4366         int result = 0;
4367
4368         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4369                 if( !track->show_assets() ) continue;
4370
4371                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4372                         int64_t edit_x, edit_y, edit_w, edit_h;
4373                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4374
4375                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4376                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4377                                 if( cursor_x < edit_x + HANDLE_W ) {
4378                                         edit_result = edit;
4379                                         handle_result = 0;
4380                                         if( cursor_y >= edit_y+edit_h - HANDLE_W ) {
4381                                                 new_cursor = DOWNLEFT_RESIZE;
4382                                                 if( button_press == LEFT_BUTTON )
4383                                                         result = -1;
4384                                         }
4385                                         else
4386                                                 result = 1;
4387                                 }
4388                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4389                                         edit_result = edit;
4390                                         handle_result = 1;
4391                                         if( cursor_y >= edit_y+edit_h - HANDLE_W ) {
4392                                                 new_cursor = DOWNRIGHT_RESIZE;
4393                                                 if( button_press == LEFT_BUTTON )
4394                                                         result = -1;
4395                                         }
4396                                         else
4397                                                 result = 1;
4398                                 }
4399                         }
4400                 }
4401         }
4402
4403         update_cursor = 1;
4404         if( result > 0 ) {
4405                 double position = 0;
4406                 if( handle_result == 0 ) {
4407                         position = edit_result->track->from_units(edit_result->startproject);
4408                         new_cursor = LEFT_CURSOR;
4409                 }
4410                 else if( handle_result == 1 ) {
4411                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4412                         new_cursor = RIGHT_CURSOR;
4413                 }
4414
4415 // Reposition cursor
4416                 if( button_press ) {
4417                         mwindow->session->drag_edit = edit_result;
4418                         mwindow->session->drag_handle = handle_result;
4419                         mwindow->session->drag_button = get_buttonpress() - 1;
4420                         mwindow->session->drag_position = position;
4421                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4422                         mwindow->session->drag_origin_x = get_cursor_x();
4423                         mwindow->session->drag_origin_y = get_cursor_y();
4424                         mwindow->session->drag_start = position;
4425
4426                         rerender = start_selection(position);
4427                         update_overlay = 1;
4428                 }
4429         }
4430         else if( result <  0) {
4431                 mwindow->undo->update_undo_before();
4432                 if( !shift_down() ) {
4433                         if( handle_result == 0 )
4434                                 edit_result->hard_left = !edit_result->hard_left;
4435                         else if( handle_result == 1 )
4436                                 edit_result->hard_right = !edit_result->hard_right;
4437                 }
4438                 else {
4439                         int status = handle_result == 0 ? edit_result->hard_left :
4440                                      handle_result == 1 ? edit_result->hard_right : 0;
4441                         int new_status = !status;
4442                         int64_t edit_edge = edit_result->startproject;
4443                         if( handle_result == 1 ) edit_edge += edit_result->length;
4444                         double edge_position = edit_result->track->from_units(edit_edge);
4445                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4446                                 int64_t track_position = track->to_units(edge_position, 1);
4447                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4448                                 if( left_edit ) {
4449                                         int64_t left_edge = left_edit->startproject;
4450                                         double left_position = track->from_units(left_edge);
4451                                         if( EQUIV(edge_position, left_position) ) {
4452                                                 left_edit->hard_left = new_status;
4453                                                 if( left_edit->previous )
4454                                                         left_edit->previous->hard_right = new_status;
4455                                         }
4456                                 }
4457                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4458                                 if( right_edit ) {
4459                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4460                                         double right_position = track->from_units(right_edge);
4461                                         if( EQUIV(edge_position, right_position) ) {
4462                                                 right_edit->hard_right = new_status;
4463                                                 if( right_edit->next )
4464                                                         right_edit->next->hard_left = new_status;
4465                                         }
4466                                 }
4467                         }
4468                 }
4469                 rerender = update_overlay = 1;
4470                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4471                 result = 1;
4472         }
4473
4474         return result;
4475 }
4476
4477 int TrackCanvas::do_plugin_handles(int cursor_x,
4478         int cursor_y,
4479         int button_press,
4480         int &rerender,
4481         int &update_overlay,
4482         int &new_cursor,
4483         int &update_cursor)
4484 {
4485         Plugin *plugin_result = 0;
4486         int handle_result = 0;
4487         int result = 0;
4488
4489         for(Track *track = mwindow->edl->tracks->first;
4490                 track && !result;
4491                 track = track->next) {
4492                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4493                         PluginSet *plugin_set = track->plugin_set.values[i];
4494                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4495                                 plugin && !result;
4496                                 plugin = (Plugin*)plugin->next) {
4497                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4498                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4499
4500                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4501                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4502                                         if(cursor_x < plugin_x + HANDLE_W) {
4503                                                 plugin_result = plugin;
4504                                                 handle_result = 0;
4505                                                 result = 1;
4506                                         }
4507                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4508                                                 plugin_result = plugin;
4509                                                 handle_result = 1;
4510                                                 result = 1;
4511                                         }
4512                                 }
4513                         }
4514
4515                         if(result && shift_down())
4516                                 mwindow->session->trim_edits = plugin_set;
4517                 }
4518         }
4519
4520         update_cursor = 1;
4521         if(result) {
4522                 double position = 0;
4523                 if(handle_result == 0) {
4524                         position = plugin_result->track->from_units(plugin_result->startproject);
4525                         new_cursor = LEFT_CURSOR;
4526                 }
4527                 else if(handle_result == 1) {
4528                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4529                         new_cursor = RIGHT_CURSOR;
4530                 }
4531
4532                 if(button_press) {
4533                         mwindow->session->drag_plugin = plugin_result;
4534                         mwindow->session->drag_handle = handle_result;
4535                         mwindow->session->drag_button = get_buttonpress() - 1;
4536                         mwindow->session->drag_position = position;
4537                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4538                         mwindow->session->drag_origin_x = get_cursor_x();
4539                         mwindow->session->drag_origin_y = get_cursor_y();
4540                         mwindow->session->drag_start = position;
4541
4542                         rerender = start_selection(position);
4543                         update_overlay = 1;
4544                 }
4545         }
4546
4547         return result;
4548 }
4549
4550
4551 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4552 {
4553         int result = 0;
4554
4555         for(Track *track = mwindow->edl->tracks->first;
4556                 track && !result;
4557                 track = track->next) {
4558                 int64_t track_x, track_y, track_w, track_h;
4559                 track_dimensions(track, track_x, track_y, track_w, track_h);
4560
4561                 if( button_press && get_buttonpress() == RIGHT_BUTTON &&
4562                     cursor_y >= track_y && cursor_y < track_y + track_h) {
4563                         double pos = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4564                         int64_t position = track->to_units(pos, 0);
4565                         gui->edit_menu->update(track, track->edits->editof(position, PLAY_FORWARD, 0));
4566                         gui->edit_menu->activate_menu();
4567                         result = 1;
4568                 }
4569         }
4570
4571         return result;
4572 }
4573
4574 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4575         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4576 {
4577         int result = 0;
4578
4579         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4580                 if( !track->show_assets() ) continue;
4581
4582                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4583                         int64_t edit_x, edit_y, edit_w, edit_h;
4584                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4585
4586 // Cursor inside a track
4587 // Cursor inside an edit
4588                         if(cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4589                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h) {
4590 // Select duration of edit
4591                                 if(button_press) {
4592                                         if(get_double_click() && !drag_start) {
4593                                                 mwindow->edl->local_session->set_selectionstart(edit->track->from_units(edit->startproject));
4594                                                 mwindow->edl->local_session->set_selectionend(edit->track->from_units(edit->startproject) +
4595                                                         edit->track->from_units(edit->length));
4596                                                 if(mwindow->edl->session->cursor_on_frames)
4597                                                 {
4598                                                         mwindow->edl->local_session->set_selectionstart(
4599                                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
4600                                                         mwindow->edl->local_session->set_selectionend(
4601                                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
4602                                                 }
4603                                                 redraw = 1;
4604                                                 rerender = 1;
4605                                                 update_cursor = -1;
4606                                                 result = 1;
4607                                         }
4608                                 }
4609                                 else if(drag_start && track->record) {
4610                                         if(mwindow->edl->session->editing_mode == EDITING_ARROW) {
4611 // Need to create drag window
4612                                                 mwindow->session->current_operation = DRAG_EDIT;
4613                                                 mwindow->session->drag_edit = edit;
4614 //printf("TrackCanvas::do_edits 2\n");
4615
4616 // Drag only one edit if ctrl is initially down
4617                                                 if(ctrl_down()) {
4618                                                         mwindow->session->drag_edits->remove_all();
4619                                                         mwindow->session->drag_edits->append(edit);
4620                                                 }
4621                                                 else {
4622 // Construct list of all affected edits
4623                                                         mwindow->edl->tracks->get_affected_edits(
4624                                                                 mwindow->session->drag_edits,
4625                                                                 edit->track->from_units(edit->startproject),
4626                                                                 edit->track);
4627                                                 }
4628                                                 mwindow->session->drag_origin_x = cursor_x;
4629                                                 mwindow->session->drag_origin_y = cursor_y;
4630                                                 // Where the drag started, so we know relative position inside the edit later
4631                                                 mwindow->session->drag_position = (double)cursor_x *
4632                                                         mwindow->edl->local_session->zoom_sample /
4633                                                         mwindow->edl->session->sample_rate +
4634                                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4635                                                         mwindow->edl->local_session->zoom_sample /
4636                                                         mwindow->edl->session->sample_rate;
4637
4638                                                 int cx, cy;
4639                                                 get_abs_cursor(cx, cy);
4640                                                 gui->drag_popup = new BC_DragWindow(gui,
4641                                                         mwindow->theme->get_image("clip_icon"), cx, cy);
4642
4643                                                 result = 1;
4644                                         }
4645                                 }
4646                         }
4647                 }
4648         }
4649         return result;
4650 }
4651
4652
4653 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
4654 {
4655         return 0;
4656 }
4657
4658 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
4659         int button_press, int &redraw, int &rerender)
4660 {
4661         Plugin *plugin = 0;
4662         int result = 0;
4663         int done = 0;
4664         int64_t x, y, w, h;
4665         Track *track = 0;
4666
4667         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
4668                 if(!track->expand_view) continue;
4669
4670                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
4671                         // first check if plugins are visible at all
4672                         if (!track->expand_view)
4673                                 continue;
4674                         PluginSet *plugin_set = track->plugin_set.values[i];
4675                         for(plugin = (Plugin*)plugin_set->first;
4676                                 plugin && !done;
4677                                 plugin = (Plugin*)plugin->next) {
4678                                 plugin_dimensions(plugin, x, y, w, h);
4679                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
4680                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
4681                                         if(cursor_x >= x && cursor_x < x + w &&
4682                                                 cursor_y >= y && cursor_y < y + h) {
4683                                                 done = 1;
4684                                                 break;
4685                                         }
4686                                 }
4687                         }
4688                 }
4689         }
4690
4691         if(plugin) {
4692 // Start plugin popup
4693                 if(button_press) {
4694                         if(get_buttonpress() == 3) {
4695                                 gui->plugin_menu->update(plugin);
4696                                 gui->plugin_menu->activate_menu();
4697                                 result = 1;
4698                         }
4699                         else if (get_double_click() && !drag_start) {
4700 // Select range of plugin on doubleclick over plugin
4701                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
4702                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
4703                                         plugin->track->from_units(plugin->length));
4704                                 if(mwindow->edl->session->cursor_on_frames) {
4705                                         mwindow->edl->local_session->set_selectionstart(
4706                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
4707                                         mwindow->edl->local_session->set_selectionend(
4708                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
4709                                 }
4710                                 rerender = 1;
4711                                 redraw = 1;
4712                                 result = 1;
4713                         }
4714                 }
4715                 else
4716 // Move plugin
4717                 if(drag_start && plugin->track->record) {
4718                         if(mwindow->edl->session->editing_mode == EDITING_ARROW) {
4719                                 if(plugin->track->data_type == TRACK_AUDIO)
4720                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
4721                                 else if(plugin->track->data_type == TRACK_VIDEO)
4722                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
4723
4724                                 mwindow->session->drag_plugin = plugin;
4725                                 mwindow->session->drag_origin_x = cursor_x;
4726                                 mwindow->session->drag_origin_y = cursor_y;
4727                                 // Where the drag started, so we know relative position inside the edit later
4728                                 mwindow->session->drag_position =
4729                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4730                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4731 // Create picon
4732                                 switch(plugin->plugin_type) {
4733                                 case PLUGIN_STANDALONE: {
4734                                         PluginServer *server =
4735                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
4736                                         if( !server ) break;
4737                                         VFrame *frame = server->picon;
4738                                         if(!frame) {
4739                                                 if(plugin->track->data_type == TRACK_AUDIO) {
4740                                                         frame = mwindow->theme->get_image("aeffect_icon");
4741                                                 }
4742                                                 else {
4743                                                         frame = mwindow->theme->get_image("veffect_icon");
4744                                                 }
4745                                         }
4746                                         int cx, cy;
4747                                         get_abs_cursor(cx, cy);
4748                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
4749                                                 break; }
4750
4751                                 case PLUGIN_SHAREDPLUGIN:
4752                                 case PLUGIN_SHAREDMODULE: {
4753                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
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
4760                                 result = 1;
4761                         }
4762                 }
4763         }
4764
4765         return result;
4766 }
4767
4768 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
4769         int button_press, int &new_cursor, int &update_cursor)
4770 {
4771         Transition *transition = 0;
4772         int result = 0;
4773         int64_t x, y, w, h;
4774
4775
4776         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
4777                 if( !track->show_transitions() ) continue;
4778
4779                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
4780                         if( edit->transition ) {
4781                                 edit_dimensions(edit, x, y, w, h);
4782                                 get_transition_coords(edit, x, y, w, h);
4783
4784                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
4785                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
4786                                         if( cursor_x >= x && cursor_x < x + w &&
4787                                                 cursor_y >= y && cursor_y < y + h ) {
4788                                                 transition = edit->transition;
4789                                                 result = 1;
4790                                                 break;
4791                                         }
4792                                 }
4793                         }
4794                 }
4795         }
4796
4797         update_cursor = 1;
4798         if(transition) {
4799                 if(!button_press) {
4800                         new_cursor = UPRIGHT_ARROW_CURSOR;
4801                 }
4802                 else if(get_buttonpress() == 3) {
4803                         gui->transition_menu->update(transition);
4804                         gui->transition_menu->activate_menu();
4805                 }
4806         }
4807
4808         return result;
4809 }
4810
4811 int TrackCanvas::button_press_event()
4812 {
4813         int result = 0;
4814         int cursor_x, cursor_y;
4815         int new_cursor;
4816
4817         cursor_x = get_cursor_x();
4818         cursor_y = get_cursor_y();
4819         mwindow->session->trim_edits = 0;
4820
4821         if(is_event_win() && cursor_inside()) {
4822 //              double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4823
4824                 result = 1;
4825                 if(!active) {
4826                         activate();
4827                 }
4828
4829                 if( get_buttonpress() == LEFT_BUTTON ) {
4830                         gui->stop_transport("TrackCanvas::button_press_event");
4831                 }
4832
4833                 int update_overlay = 0, update_cursor = 0, rerender = 0;
4834
4835                 if(get_buttonpress() == WHEEL_UP) {
4836                         if(shift_down())
4837                                 mwindow->expand_sample();
4838                         else if(ctrl_down())
4839                                 mwindow->move_left(get_w()/ 10);
4840                         else
4841                                 mwindow->move_up(get_h() / 10);
4842                 }
4843                 else if(get_buttonpress() == WHEEL_DOWN) {
4844                         if(shift_down())
4845                                 mwindow->zoom_in_sample();
4846                         else if(ctrl_down())
4847                                 mwindow->move_right(get_w() / 10);
4848                         else
4849                                 mwindow->move_down(get_h() / 10);
4850                 }
4851                 else if(get_buttonpress() == 6) {
4852                         if(ctrl_down())
4853                                 mwindow->move_left(get_w());
4854                         else if(alt_down())
4855                                 mwindow->move_left(get_w() / 20);
4856                         else
4857                                 mwindow->move_left(get_w() / 5);
4858                 }
4859                 else if(get_buttonpress() == 7) {
4860                         if(ctrl_down())
4861                                 mwindow->move_right(get_w());
4862                         else if(alt_down())
4863                                 mwindow->move_right(get_w() / 20);
4864                         else
4865                                 mwindow->move_right(get_w() / 5);
4866                 }
4867                 else {
4868                         switch(mwindow->edl->session->editing_mode) {
4869 // Test handles and resource boundaries and highlight a track
4870                         case EDITING_ARROW: {
4871                                 if( do_transitions(cursor_x, cursor_y,
4872                                                 1, new_cursor, update_cursor) ) break;
4873
4874                                 if( do_keyframes(cursor_x, cursor_y,
4875                                         0, get_buttonpress(), new_cursor,
4876                                         update_cursor, rerender) ) break;
4877 // Test edit boundaries
4878                                 if( do_edit_handles(cursor_x, cursor_y,
4879                                         1, rerender, update_overlay, new_cursor,
4880                                         update_cursor) ) break;
4881 // Test plugin boundaries
4882                                 if( do_plugin_handles(cursor_x, cursor_y,
4883                                         1, rerender, update_overlay, new_cursor,
4884                                         update_cursor) ) break;
4885
4886                                 if( do_edits(cursor_x, cursor_y, 1, 0,
4887                                         update_cursor, rerender, new_cursor,
4888                                         update_cursor) ) break;
4889
4890                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
4891                                         update_cursor, rerender) ) break;
4892
4893                                 if( test_resources(cursor_x, cursor_y) ) break;
4894
4895                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
4896
4897                                 result = 0;
4898                                 break; }
4899
4900 // Test handles only and select a region
4901                         case EDITING_IBEAM: {
4902                                 double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
4903 //printf("TrackCanvas::button_press_event %d\n", position);
4904
4905                                 if( do_transitions(cursor_x, cursor_y,
4906                                                 1, new_cursor, update_cursor)) break;
4907                                 if(do_keyframes(cursor_x, cursor_y,
4908                                         0, get_buttonpress(), new_cursor,
4909                                         update_cursor, rerender)) {
4910                                         update_overlay = 1;
4911                                         break;
4912                                 }
4913 // Test edit boundaries
4914                                 if( do_edit_handles(cursor_x, cursor_y,
4915                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
4916 // Test plugin boundaries
4917                                 if( do_plugin_handles(cursor_x, cursor_y,
4918                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
4919
4920                                 if( do_edits(cursor_x, cursor_y,
4921                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
4922
4923                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
4924
4925                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
4926 // Highlight selection
4927                                 if( get_buttonpress() != LEFT_BUTTON ) break;
4928                                 rerender = start_selection(position);
4929                                 mwindow->session->current_operation = SELECT_REGION;
4930                                 update_cursor = 1;
4931                                 break; }
4932                         }
4933                 }
4934
4935                 if( rerender ) {
4936                         gui->unlock_window();
4937                         mwindow->cwindow->update(1, 0, 0, 0, 1);
4938                         gui->lock_window("TrackCanvas::button_press_event 2");
4939 // Update faders
4940                         mwindow->update_plugin_guis();
4941                         gui->update_patchbay();
4942                 }
4943
4944                 if( update_overlay ) {
4945                         gui->draw_overlays(1);
4946                 }
4947                 if( update_cursor < 0 ) {
4948 // double_click edit
4949                         gui->swindow->update_selection();
4950                 }
4951                 if( update_cursor ) {
4952                         gui->update_timebar(0);
4953                         gui->hide_cursor(0);
4954                         gui->show_cursor(1);
4955                         gui->zoombar->update();
4956                         gui->flash_canvas(1);
4957                 }
4958         }
4959
4960         return result;
4961 }
4962
4963 int TrackCanvas::start_selection(double position)
4964 {
4965         int rerender = 0;
4966         position = mwindow->edl->align_to_frame(position, 1);
4967
4968
4969 // Extend a border
4970         if(shift_down())
4971         {
4972                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
4973                         mwindow->edl->local_session->get_selectionend(1)) / 2;
4974
4975                 if(position < midpoint)
4976                 {
4977                         mwindow->edl->local_session->set_selectionstart(position);
4978                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
4979 // Que the CWindow
4980                         rerender = 1;
4981                 }
4982                 else
4983                 {
4984                         mwindow->edl->local_session->set_selectionend(position);
4985                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
4986 // Don't que the CWindow for the end
4987                 }
4988         }
4989         else
4990 // Start a new selection
4991         {
4992 //printf("TrackCanvas::start_selection %f\n", position);
4993                 mwindow->edl->local_session->set_selectionstart(position);
4994                 mwindow->edl->local_session->set_selectionend(position);
4995                 selection_midpoint = position;
4996 // Que the CWindow
4997                 rerender = 1;
4998         }
4999
5000         return rerender;
5001 }
5002
5003 void TrackCanvas::end_edithandle_selection()
5004 {
5005         mwindow->modify_edithandles();
5006 }
5007
5008 void TrackCanvas::end_pluginhandle_selection()
5009 {
5010         mwindow->modify_pluginhandles();
5011 }
5012
5013
5014 double TrackCanvas::time_visible()
5015 {
5016         return (double)get_w() *
5017                 mwindow->edl->local_session->zoom_sample /
5018                 mwindow->edl->session->sample_rate;
5019 }
5020
5021
5022 void TrackCanvas::show_message(Auto *current, int show_curve_type, const char *fmt, ...)
5023 {
5024         char string[BCTEXTLEN];
5025         char *cp = string, *ep = cp + sizeof(string)-1;
5026         if( show_curve_type ) {
5027                 cp += snprintf(string, ep-cp, "%-8s ",
5028                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5029         }
5030         char string2[BCTEXTLEN];
5031         Units::totext(string2,
5032                 current->autos->track->from_units(current->position),
5033                 mwindow->edl->session->time_format,
5034                 mwindow->edl->session->sample_rate,
5035                 mwindow->edl->session->frame_rate,
5036                 mwindow->edl->session->frames_per_foot);
5037         cp += snprintf(cp, ep-cp, "%s", string2);
5038         va_list ap;
5039         va_start(ap, fmt);
5040         vsnprintf(cp, ep-cp, fmt, ap);
5041         va_end(ap);
5042         gui->show_message(string);
5043 }
5044
5045 // Patchbay* TrackCanvas::get_patchbay()
5046 // {
5047 //      if(pane->patchbay) return pane->patchbay;
5048 //      if(gui->total_panes() == 2 &&
5049 //              gui->pane[TOP_LEFT_PANE] &&
5050 //              gui->pane[TOP_RIGHT_PANE])
5051 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5052 //      if(gui->total_panes() == 4)
5053 //      {
5054 //              if(pane->number == TOP_RIGHT_PANE)
5055 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5056 //              else
5057 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5058 //      }
5059 //
5060 //      return 0;
5061 // }
5062
5063