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
 646 void TrackCanvas::draw(int mode, int hide_cursor)
 647 {
 648         const int debug = 0;
 649
 650
 651 // Swap pixmap layers
 652         if(get_w() != background_pixmap->get_w() ||
 653                 get_h() != background_pixmap->get_h())
 654         {
 655                 delete background_pixmap;
 656                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
 657         }
 658
 659 // Cursor disappears after resize when this is called.
 660 // Cursor doesn't redraw after editing when this isn't called.
 661         if(pane->cursor && hide_cursor) pane->cursor->hide();
 662         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
 663
 664         if(debug) PRINT_TRACE
 665         draw_resources(mode);
 666
 667         if(debug) PRINT_TRACE
 668         draw_overlays();
 669         if(debug) PRINT_TRACE
 670 }
 671
 672 void TrackCanvas::update_cursor(int flush)
 673 {
 674         switch(mwindow->edl->session->editing_mode)
 675         {
 676                 case EDITING_ARROW: set_cursor(ARROW_CURSOR, 0, flush); break;
 677                 case EDITING_IBEAM: set_cursor(IBEAM_CURSOR, 0, flush); break;
 678         }
 679 }
 680
 681
 682 void TrackCanvas::test_timer()
 683 {
 684         if(resource_timer->get_difference() > 1000 &&
 685                 !hourglass_enabled)
 686         {
 687                 start_hourglass();
 688                 hourglass_enabled = 1;
 689         }
 690 }
 691
 692
 693 void TrackCanvas::draw_indexes(Indexable *indexable)
 694 {
 695         IndexState *index_state = indexable->index_state;
 696 // Don't redraw raw samples
 697         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
 698                 return;
 699         draw_resources(0, 1, indexable);
 700         draw_overlays();
 701         flash(0);
 702 }
 703
 704 void TrackCanvas::draw_resources(int mode,
 705         int indexes_only,
 706         Indexable *indexable)
 707 {
 708         const int debug = 0;
 709
 710         if(debug) PRINT_TRACE
 711
 712         if(!mwindow->edl->session->show_assets) return;
 713
 714
 715 // can't stop thread here, because this is called for every pane
 716 //      if(mode != IGNORE_THREAD && !indexes_only)
 717 //              gui->resource_thread->stop_draw(!indexes_only);
 718
 719         if(mode != IGNORE_THREAD &&
 720                 !indexes_only &&
 721                 !gui->resource_thread->interrupted)
 722         {
 723                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
 724                         __LINE__);
 725
 726                 BC_Signals::dump_stack();
 727         }
 728
 729         if(debug) PRINT_TRACE
 730
 731         resource_timer->update();
 732
 733 // Age resource pixmaps for deletion
 734         if(!indexes_only)
 735                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 736                         gui->resource_pixmaps.values[i]->visible--;
 737
 738         if(mode == FORCE_REDRAW)
 739                 gui->resource_pixmaps.remove_all_objects();
 740
 741         if(debug) PRINT_TRACE
 742
 743 // Search every edit
 744         for(Track *current = mwindow->edl->tracks->first;
 745                 current;
 746                 current = NEXT)
 747         {
 748                 if(debug) PRINT_TRACE
 749                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
 750                 {
 751                         if(debug) PRINT_TRACE
 752                         if( current->data_type != TRACK_SUBTITLE )
 753                                 if(!edit->asset && !edit->nested_edl) continue;
 754                         if(indexes_only)
 755                         {
 756                                 if(edit->track->data_type != TRACK_AUDIO) continue;
 757
 758                                 if(edit->nested_edl &&
 759                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
 760
 761                                 if(edit->asset &&
 762                                         strcmp(indexable->path, edit->asset->path)) continue;
 763                         }
 764
 765                         if(debug) PRINT_TRACE
 766
 767                         int64_t edit_x, edit_y, edit_w, edit_h;
 768                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
 769
 770 // Edit is visible
 771                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
 772                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
 773                         {
 774                                 int64_t pixmap_x, pixmap_w, pixmap_h;
 775                                 if(debug) PRINT_TRACE
 776
 777 // Search for existing pixmap containing edit
 778                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
 779                                 {
 780                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
 781 // Same pointer can be different edit if editing took place
 782                                         if(pixmap->edit_id == edit->id &&
 783                                                 pixmap->pane_number == pane->number)
 784                                         {
 785                                                 pixmap->visible = 1;
 786                                                 break;
 787                                         }
 788                                 }
 789                                 if(debug) PRINT_TRACE
 790
 791 // Get new size, offset of pixmap needed
 792                                 get_pixmap_size(edit,
 793                                         edit_x,
 794                                         edit_w,
 795                                         pixmap_x,
 796                                         pixmap_w,
 797                                         pixmap_h);
 798                                 if(debug) PRINT_TRACE
 799
 800 // Draw new data
 801                                 if(pixmap_w && pixmap_h)
 802                                 {
 803 // Create pixmap if it doesn't exist
 804                                         ResourcePixmap* pixmap = create_pixmap(edit,
 805                                                 edit_x,
 806                                                 pixmap_x,
 807                                                 pixmap_w,
 808                                                 pixmap_h);
 809 // Resize it if it's bigger
 810                                         if(pixmap_w > pixmap->pixmap_w ||
 811                                                 pixmap_h > pixmap->pixmap_h)
 812                                                 pixmap->resize(pixmap_w, pixmap_h);
 813                                         pixmap->draw_data(this,
 814                                                 edit,
 815                                                 edit_x,
 816                                                 edit_w,
 817                                                 pixmap_x,
 818                                                 pixmap_w,
 819                                                 pixmap_h,
 820                                                 mode,
 821                                                 indexes_only);
 822 // Resize it if it's smaller
 823                                         if(pixmap_w < pixmap->pixmap_w ||
 824                                                 pixmap_h < pixmap->pixmap_h)
 825                                                 pixmap->resize(pixmap_w, pixmap_h);
 826
 827 // Copy pixmap to background canvas
 828                                         background_pixmap->draw_pixmap(pixmap,
 829                                                 pixmap->pixmap_x,
 830                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
 831                                                 pixmap->pixmap_w,
 832                                                 edit_h);
 833                                 }
 834                                 if(debug) PRINT_TRACE
 835
 836                         }
 837                 }
 838         }
 839
 840
 841 // Delete unused pixmaps
 842         if(debug) PRINT_TRACE
 843         if(!indexes_only)
 844                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
 845                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
 846                         {
 847 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
 848                                 delete gui->resource_pixmaps.values[i];
 849                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
 850                         }
 851         if(debug) PRINT_TRACE
 852
 853         if(hourglass_enabled)
 854         {
 855                 stop_hourglass();
 856                 hourglass_enabled = 0;
 857         }
 858         if(debug) PRINT_TRACE
 859
 860 // can't stop thread here, because this is called for every pane
 861 //      if(mode != IGNORE_THREAD && !indexes_only)
 862 //              gui->resource_thread->start_draw();
 863         if(debug) PRINT_TRACE
 864
 865
 866 }
 867
 868 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
 869         int64_t edit_x,
 870         int64_t pixmap_x,
 871         int64_t pixmap_w,
 872         int64_t pixmap_h)
 873 {
 874         ResourcePixmap *result = 0;
 875
 876         for(int i = 0; i < gui->resource_pixmaps.total; i++)
 877         {
 878 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
 879                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
 880                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
 881                 {
 882                         result = gui->resource_pixmaps.values[i];
 883                         break;
 884                 }
 885         }
 886
 887         if(!result)
 888         {
 889 //SET_TRACE
 890                 result = new ResourcePixmap(mwindow,
 891                         gui,
 892                         edit,
 893                         pane->number,
 894                         pixmap_w,
 895                         pixmap_h);
 896 //SET_TRACE
 897                 gui->resource_pixmaps.append(result);
 898         }
 899
 900 //      result->resize(pixmap_w, pixmap_h);
 901         return result;
 902 }
 903
 904 void TrackCanvas::get_pixmap_size(Edit *edit,
 905         int64_t edit_x,
 906         int64_t edit_w,
 907         int64_t &pixmap_x,
 908         int64_t &pixmap_w,
 909         int64_t &pixmap_h)
 910 {
 911
 912 // Align x on frame boundaries
 913
 914
 915 //      switch(edit->edits->track->data_type)
 916 //      {
 917 //              case TRACK_AUDIO:
 918
 919                         pixmap_x = edit_x;
 920                         pixmap_w = edit_w;
 921                         if(pixmap_x < 0)
 922                         {
 923                                 pixmap_w -= -edit_x;
 924                                 pixmap_x = 0;
 925                         }
 926
 927                         if(pixmap_x + pixmap_w > get_w())
 928                         {
 929                                 pixmap_w = get_w() - pixmap_x;
 930                         }
 931
 932 //                      break;
 933 //
 934 //              case TRACK_VIDEO:
 935 //              {
 936 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
 937 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
 938 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
 939 //                      int64_t pixmap_x1 = edit_x;
 940 //                      int64_t pixmap_x2 = edit_x + edit_w;
 941 //
 942 //                      if(pixmap_x1 < 0)
 943 //                      {
 944 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
 945 //                                      pixel_increment +
 946 //                                      edit_x;
 947 //                      }
 948 //
 949 //                      if(pixmap_x2 > get_w())
 950 //                      {
 951 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
 952 //                                      pixel_increment +
 953 //                                      edit_x;
 954 //                      }
 955 //                      pixmap_x = pixmap_x1;
 956 //                      pixmap_w = pixmap_x2 - pixmap_x1;
 957 //                      break;
 958 //              }
 959 //      }
 960
 961         pixmap_h = mwindow->edl->local_session->zoom_track;
 962         if(mwindow->edl->session->show_titles) pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
 963 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
 964 }
 965
 966 void TrackCanvas::edit_dimensions(Edit *edit,
 967         int64_t &x,
 968         int64_t &y,
 969         int64_t &w,
 970         int64_t &h)
 971 {
 972 //      w = Units::round(edit->track->from_units(edit->length) *
 973 //              mwindow->edl->session->sample_rate /
 974 //              mwindow->edl->local_session->zoom_sample);
 975
 976         h = resource_h();
 977
 978         x = Units::round(edit->track->from_units(edit->startproject) *
 979                         mwindow->edl->session->sample_rate /
 980                         mwindow->edl->local_session->zoom_sample -
 981                         mwindow->edl->local_session->view_start[pane->number]);
 982
 983 // Method for calculating w so when edits are together we never get off by one error due to rounding
 984         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
 985                         mwindow->edl->session->sample_rate /
 986                         mwindow->edl->local_session->zoom_sample -
 987                         mwindow->edl->local_session->view_start[pane->number]);
 988         w = x_next - x;
 989
 990         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
 991
 992         if(mwindow->edl->session->show_titles)
 993                 h += mwindow->theme->get_image("title_bg_data")->get_h();
 994 }
 995
 996 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
 997 {
 998         x = 0;
 999         w = get_w();
1000         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1001         h = track->vertical_span(mwindow->theme);
1002 }
1003
1004
1005 void TrackCanvas::draw_paste_destination()
1006 {
1007         //int cursor_x = get_relative_cursor_x();
1008         //int cursor_y = get_relative_cursor_y();
1009         int current_atrack = 0;
1010         int current_vtrack = 0;
1011         int current_aedit = 0;
1012         int current_vedit = 0;
1013         int64_t w = 0;
1014         int64_t x;
1015         double position;
1016         int insertion  = 0;
1017
1018 //if(pane->number == BOTTOM_RIGHT_PANE)
1019 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1020
1021         if((mwindow->session->current_operation == DRAG_ASSET &&
1022                         (mwindow->session->drag_assets->total ||
1023                         mwindow->session->drag_clips->total)) ||
1024                 (mwindow->session->current_operation == DRAG_EDIT &&
1025                         mwindow->session->drag_edits->total)) {
1026                 Indexable *indexable = 0;
1027                 EDL *clip = 0;
1028                 //int draw_box = 0;
1029
1030                 if(mwindow->session->current_operation == DRAG_ASSET &&
1031                         mwindow->session->drag_assets->size())
1032                         indexable = mwindow->session->drag_assets->get(0);
1033
1034                 if(mwindow->session->current_operation == DRAG_ASSET &&
1035                         mwindow->session->drag_clips->size())
1036                         clip = mwindow->session->drag_clips->get(0);
1037
1038                 int has_audio = 0, has_video = 0;
1039                 double paste_audio_length = 0, paste_video_length = 0;
1040                 double paste_audio_position = -1, paste_video_position = -1;
1041
1042                 if( indexable ) {
1043                         has_audio = indexable->have_audio();
1044                         paste_audio_length = !has_audio ? 0 :
1045                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1046                         has_video = indexable->have_video();
1047                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1048                         // Images have length -1
1049                         if( asset && asset->video_data && asset->video_length < 0 ) {
1050                                 paste_video_length = mwindow->edl->session->si_useduration ?
1051                                         mwindow->edl->session->si_duration / asset->frame_rate :
1052                                         1.0 / asset->frame_rate ;  // 1 frame
1053                         }
1054                         else
1055                                 paste_video_length = !has_video ? 0 :
1056                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1057                 }
1058
1059                 if( clip ) {
1060                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1061                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1062                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1063                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1064                 }
1065
1066 // 'Align cursor on frame' lengths calculations
1067                 if( mwindow->edl->session->cursor_on_frames ) {
1068                         double fps = mwindow->edl->session->frame_rate;
1069                         double aud = floor(paste_audio_length * fps) / fps;
1070                         double vid = floor(paste_video_length * fps) / fps;
1071                         double length = has_video && has_audio ?
1072                                         aud < vid ? aud : vid :
1073                                 has_video ? vid :
1074                                 has_audio ? aud : 0;
1075                         paste_video_length = paste_audio_length = length;
1076                 }
1077
1078                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1079                         int64_t length = 0;
1080                         switch( mwindow->session->track_highlighted->data_type ) {
1081                         case TRACK_VIDEO: length = paste_video_length;  break;
1082                         case TRACK_AUDIO: length = paste_audio_length;  break;
1083                         }
1084                         int64_t asset_length = mwindow->session->track_highlighted->
1085                                 to_units(length, 1);
1086                         paste_audio_position = mwindow->session->track_highlighted->
1087                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1088                 }
1089                 if( has_video ) {
1090                         int64_t asset_length = mwindow->session->track_highlighted->
1091                                 to_units(paste_video_length, 1);
1092                         paste_video_position = mwindow->session->track_highlighted->
1093                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1094                 }
1095
1096 // Get destination track
1097                 for(Track *dest = mwindow->session->track_highlighted;
1098                         dest;
1099                         dest = dest->next) {
1100                         if(dest->record) {
1101 // Get source width in pixels
1102                                 w = -1;
1103 // Use start of highlighted edit
1104                                 if(mwindow->session->edit_highlighted) {
1105                                         position = mwindow->session->track_highlighted->from_units(
1106                                                 mwindow->session->edit_highlighted->startproject);
1107                                 }
1108                                 else {
1109 // Use end of highlighted track, disregarding effects
1110                                         position = mwindow->session->track_highlighted->from_units(
1111                                                 mwindow->session->track_highlighted->edits->length());
1112                                 }
1113
1114 // Get the x coordinate
1115                                 x = Units::to_int64(position *
1116                                         mwindow->edl->session->sample_rate /
1117                                         mwindow->edl->local_session->zoom_sample) -
1118                                         mwindow->edl->local_session->view_start[pane->number];
1119
1120                                 double paste_position = -1.;
1121                                 if(dest->data_type == TRACK_AUDIO) {
1122                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1123 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1124                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1125                                                         indexable->get_sample_rate() *
1126                                                         mwindow->edl->session->sample_rate /
1127                                                         mwindow->edl->local_session->zoom_sample);
1128                                                 paste_position = paste_audio_position;
1129                                         }
1130                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1131                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1132                                                         mwindow->edl->session->sample_rate /
1133                                                         mwindow->edl->local_session->zoom_sample);
1134                                                 paste_position = paste_audio_position;
1135 //printf("draw_paste_destination %d\n", x);
1136                                         }
1137                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1138                                                 current_aedit < mwindow->session->drag_edits->total) {
1139                                                 Edit *edit;
1140                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1141                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1142                                                         current_aedit++;
1143
1144                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1145                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1146                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1147                                                         paste_position = mwindow->session->track_highlighted->
1148                                                                 from_units(drop_edit_position(&insertion,
1149                                                                         mwindow->session->drag_edit,
1150                                                                         mwindow->session->drag_edit->length));
1151                                                         current_aedit++;
1152                                                 }
1153                                         }
1154                                         if( paste_position >= 0 ) {
1155                                                 position = paste_position;
1156                                                 current_atrack++;
1157                                                 //draw_box = 1;
1158                                         }
1159                                         else
1160                                                 w = -1;
1161                                 }
1162                                 else if(dest->data_type == TRACK_VIDEO) {
1163 //printf("draw_paste_destination 1\n");
1164                                         if(indexable && current_vtrack < indexable->get_video_layers())
1165                                         {
1166                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1167                                                         indexable->get_frame_rate() *
1168                                                         mwindow->edl->session->sample_rate /
1169                                                         mwindow->edl->local_session->zoom_sample);
1170                                                 paste_position = paste_video_position;
1171                                         }
1172                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1173                                                 w = Units::to_int64(clip->tracks->total_length() *
1174                                                         mwindow->edl->session->sample_rate /
1175                                                         mwindow->edl->local_session->zoom_sample);
1176                                                 paste_position = paste_video_position;
1177                                         }
1178                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1179                                                 current_vedit < mwindow->session->drag_edits->total) {
1180                                                 Edit *edit;
1181                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1182                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1183                                                         current_vedit++;
1184
1185                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1186                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1187                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1188                                                                 mwindow->edl->session->sample_rate /
1189                                                                 mwindow->edl->local_session->zoom_sample);
1190                                                         paste_position = mwindow->session->track_highlighted->
1191                                                                 from_units(drop_edit_position(&insertion,
1192                                                                         mwindow->session->drag_edit,
1193                                                                         mwindow->session->drag_edit->length));
1194                                                         current_vedit++;
1195                                                 }
1196                                         }
1197                                         if( paste_position >= 0 ) {
1198                                                 position = paste_position;
1199                                                 current_vedit++;
1200                                                 //draw_box = 1;
1201                                         }
1202                                         else
1203                                                 w = -1;
1204                                 }
1205
1206                                 if(w >= 0) {
1207 // Get the x coordinate
1208                                         x = Units::to_int64(position *
1209                                                 mwindow->edl->session->sample_rate /
1210                                                 mwindow->edl->local_session->zoom_sample) -
1211                                                 mwindow->edl->local_session->view_start[pane->number];
1212                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1213                                         int h = dest->vertical_span(mwindow->theme);
1214
1215 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1216                                         if(x < -BC_INFINITY) {
1217                                                 w -= -BC_INFINITY - x;
1218                                                 x += -BC_INFINITY - x;
1219                                         }
1220                                         w = MIN(65535, w);
1221 // if(pane->number == TOP_RIGHT_PANE)
1222 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1223 // __LINE__, x, y, w, h);
1224                                         if (insertion)
1225                                                 draw_highlight_insertion(x, y, w, h);
1226                                         else
1227                                                 draw_highlight_rectangle(x, y, w, h);
1228                                 }
1229                         }
1230                 }
1231         }
1232 }
1233
1234 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1235 {
1236         x = Units::round(plugin->track->from_units(plugin->startproject) *
1237                 mwindow->edl->session->sample_rate /
1238                 mwindow->edl->local_session->zoom_sample -
1239                 mwindow->edl->local_session->view_start[pane->number]);
1240         w = Units::round(plugin->track->from_units(plugin->length) *
1241                 mwindow->edl->session->sample_rate /
1242                 mwindow->edl->local_session->zoom_sample);
1243         y = plugin->track->y_pixel -
1244                 mwindow->edl->local_session->track_start[pane->number] +
1245                 mwindow->edl->local_session->zoom_track +
1246                 plugin->plugin_set->get_number() *
1247                 mwindow->theme->get_image("plugin_bg_data")->get_h();
1248         if(mwindow->edl->session->show_titles)
1249                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1250         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1251 }
1252
1253 int TrackCanvas::resource_h()
1254 {
1255         return mwindow->edl->local_session->zoom_track;
1256 }
1257
1258 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1259 {
1260
1261 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1262 // just draw arrows, so user has indication that something is there
1263 // FIXME: get better colors
1264
1265         if (x + w <= 0)
1266         {
1267                 draw_triangle_left(0, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1268                 return;
1269         } else
1270         if (x >= get_w())
1271         {
1272                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1273                 return;
1274         }
1275
1276 // Fix bug in heroines & cvs version as of 22.8.2005:
1277 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1278         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1279         if(x < -10)
1280         {
1281                 w += x - -10;
1282                 x = -10;
1283         }
1284
1285         if(y < -10)
1286         {
1287                 h += y - -10;
1288                 y = -10;
1289         }
1290
1291         w = MIN(w, get_w() + 20);
1292         h = MIN(h, get_h() + 20);
1293         if(w > 0 && h > 0)
1294         {
1295                 set_color(mwindow->preferences->highlight_inverse);
1296                 set_inverse();
1297                 //draw_rectangle(x, y, w, h);
1298                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1299                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1300                 set_opaque();
1301                 draw_rectangle(x, y, w, h);
1302         }
1303 //if(pane->number == TOP_RIGHT_PANE)
1304 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1305 }
1306
1307 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1308 {
1309
1310 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1311 // just draw arrows, so user has indication that something is there
1312 // FIXME: get better colors
1313
1314
1315
1316         int h1 = h / 8;
1317         int h2 = h / 4;
1318
1319         set_inverse();
1320
1321 /* these don't look so good
1322
1323         draw_line(x, y, x, y+h);
1324         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1325         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1326         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1327         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1328 */
1329         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1330         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1331
1332 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1333         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1334         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1335         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1336 */
1337         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1338         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1339
1340 // draw the box centred around x
1341         x -= w / 2;
1342 // Fix bug in heroines & cvs version as of 22.8.2005:
1343 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1344         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1345         if(x < -10)
1346         {
1347                 w += x - -10;
1348                 x = -10;
1349         }
1350         if(y < -10)
1351         {
1352                 h += y - -10;
1353                 y = -10;
1354         }
1355         w = MIN(w, get_w() + 20);
1356         h = MIN(h, get_h() + 20);
1357         set_color(mwindow->preferences->highlight_inverse);
1358         set_inverse();
1359         draw_rectangle(x, y, w, h);
1360         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1361         set_opaque();
1362 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1363 }
1364
1365 void TrackCanvas::draw_playback_cursor()
1366 {
1367 // Called before playback_cursor exists
1368 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1369 //      {
1370 //              mwindow->playback_cursor->visible = 0;
1371 //              mwindow->playback_cursor->draw();
1372 //      }
1373 }
1374
1375 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1376 {
1377         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1378         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1379
1380         edit_dimensions(edit, x, y, w, h);
1381
1382         if(mwindow->edl->session->show_titles)
1383         {
1384                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1385         }
1386         else
1387         {
1388                 y = 0;
1389         }
1390
1391         if(side == EDIT_OUT)
1392         {
1393                 x += w - handle_w;
1394         }
1395
1396         h = handle_h;
1397         w = handle_w;
1398 }
1399
1400 void TrackCanvas::get_transition_coords(int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1401 {
1402 //printf("TrackCanvas::get_transition_coords 1\n");
1403 //      int transition_w = mwindow->theme->transitionhandle_data[0]->get_w();
1404 //      int transition_h = mwindow->theme->transitionhandle_data[0]->get_h();
1405         int transition_w = 30;
1406         int transition_h = 30;
1407 //printf("TrackCanvas::get_transition_coords 1\n");
1408
1409         if(mwindow->edl->session->show_titles)
1410                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1411 //printf("TrackCanvas::get_transition_coords 2\n");
1412
1413         y += (h - mwindow->theme->get_image("title_bg_data")->get_h()) / 2 - transition_h / 2;
1414         x -= transition_w / 2;
1415
1416         h = transition_h;
1417         w = transition_w;
1418 }
1419
1420 void TrackCanvas::draw_highlighting()
1421 {
1422         int64_t x, y, w, h;
1423         int draw_box = 0;
1424
1425         switch(mwindow->session->current_operation)
1426         {
1427                 case DRAG_ATRANSITION:
1428                 case DRAG_VTRANSITION:
1429 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1430 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1431                         if(mwindow->session->edit_highlighted) {
1432 //printf("TrackCanvas::draw_highlighting 2\n");
1433                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1434                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1435                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1436                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1437 //printf("TrackCanvas::draw_highlighting 2\n");
1438                                         edit_dimensions(mwindow->session->edit_highlighted, x, y, w, h);
1439 //printf("TrackCanvas::draw_highlighting 2\n");
1440
1441                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1442                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1443                                                 draw_box = 1;
1444                                                 get_transition_coords(x, y, w, h);
1445                                         }
1446 //printf("TrackCanvas::draw_highlighting 3\n");
1447                                 }
1448                         }
1449                         break;
1450
1451 // Dragging a new effect from the Resource window
1452                 case DRAG_AEFFECT:
1453                 case DRAG_VEFFECT:
1454                         if(mwindow->session->track_highlighted &&
1455                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1456                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1457                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1458                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1459 // Put it before another plugin
1460                                 if(mwindow->session->plugin_highlighted) {
1461                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1462                                                 x, y, w, h);
1463 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1464                                 }
1465 // Put it after a plugin set
1466                                 else if( mwindow->session->pluginset_highlighted &&
1467                                          mwindow->session->pluginset_highlighted->last ) {
1468                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1469                                                 x, y, w, h);
1470 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1471                                         int64_t track_x, track_y, track_w, track_h;
1472                                         track_dimensions(mwindow->session->track_highlighted,
1473                                                 track_x, track_y, track_w, track_h);
1474
1475                                         x += w;
1476                                         w = Units::round(
1477                                                         mwindow->session->track_highlighted->get_length() *
1478                                                         mwindow->edl->session->sample_rate /
1479                                                         mwindow->edl->local_session->zoom_sample -
1480                                                         mwindow->edl->local_session->view_start[pane->number]) -
1481                                                 x;
1482 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1483                                         if(w <= 0) w = track_w;
1484                                 }
1485                                 else {
1486                                         track_dimensions(mwindow->session->track_highlighted,
1487                                                 x, y, w, h);
1488
1489 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1490 // Put it in a new plugin set determined by the selected range
1491                                         if(mwindow->edl->local_session->get_selectionend() >
1492                                                 mwindow->edl->local_session->get_selectionstart()) {
1493                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1494                                                         mwindow->edl->session->sample_rate /
1495                                                         mwindow->edl->local_session->zoom_sample -
1496                                                         mwindow->edl->local_session->view_start[pane->number]);
1497                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1498                                                         mwindow->edl->local_session->get_selectionstart()) *
1499                                                         mwindow->edl->session->sample_rate /
1500                                                         mwindow->edl->local_session->zoom_sample);
1501                                         }
1502 // Put it in a new plugin set determined by an edit boundary
1503                                         else if(mwindow->session->edit_highlighted) {
1504                                                 int64_t temp_y, temp_h;
1505                                                 edit_dimensions(mwindow->session->edit_highlighted,
1506                                                         x, temp_y, w, temp_h);
1507                                         }
1508 // Put it at the beginning of the track in a new plugin set
1509                                 }
1510
1511                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1512                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1513 //printf("TrackCanvas::draw_highlighting 1\n");
1514                                         draw_box = 1;
1515                                 }
1516                         }
1517                         break;
1518
1519                 case DRAG_ASSET:
1520                         if(mwindow->session->track_highlighted) {
1521 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1522
1523 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1524 //                              {
1525                                         draw_paste_destination();
1526 //                              }
1527                         }
1528                         break;
1529
1530                 case DRAG_EDIT:
1531                         if(mwindow->session->track_highlighted) {
1532 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1533 //
1534 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1535                                         draw_paste_destination();
1536 //                              }
1537                         }
1538                         break;
1539
1540 // Dragging an effect from the timeline
1541                 case DRAG_AEFFECT_COPY:
1542                 case DRAG_VEFFECT_COPY:
1543                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1544                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1545                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1546                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1547                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1548
1549                                 int64_t plugin_position = -1;
1550                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1551                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1552                                 Track *hi_track = mwindow->session->track_highlighted;
1553                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1554 // Put it into a silence zone
1555                                 if( hi_plugin_set && hi_plugin_set->last &&
1556                                     hi_plugin_set->track == drag_plugin->track ) {
1557                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1558                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1559                                         hi_track = drag_plugin->track;
1560                                 }
1561                                 else if( hi_track ) {
1562 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1563                                         track_dimensions(hi_track, x, y, w, h);
1564                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1565                                 }
1566
1567                                 if( plugin_position < 0 ) break;
1568
1569 // Calculate length of plugin based on data type of track and units
1570                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1571                                                 mwindow->edl->local_session->zoom_sample;
1572                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1573                                                 mwindow->edl->local_session->view_start[pane->number];
1574                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1575
1576                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1577                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1578                                         draw_box = 1;
1579                                 }
1580                         }
1581                         break;
1582
1583                 case DRAG_PLUGINKEY:
1584                         if(mwindow->session->plugin_highlighted &&
1585                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1586                         {
1587 // Just highlight the plugin
1588                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1589
1590                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1591                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1592                                 {
1593                                         draw_box = 1;
1594                                 }
1595                         }
1596                         break;
1597
1598         }
1599
1600
1601         if(draw_box)
1602         {
1603                 draw_highlight_rectangle(x, y, w, h);
1604         }
1605 }
1606
1607 void TrackCanvas::draw_plugins()
1608 {
1609         char string[BCTEXTLEN];
1610         int current_on = 0;
1611         int current_show = 0;
1612         int current_preset = 0;
1613
1614 //      if(!mwindow->edl->session->show_assets) goto done;
1615
1616         for(int i = 0; i < plugin_on_toggles.total; i++)
1617                 plugin_on_toggles.values[i]->in_use = 0;
1618         for(int i = 0; i < plugin_show_toggles.total; i++)
1619                 plugin_show_toggles.values[i]->in_use = 0;
1620         for(int i = 0; i < preset_edit_buttons.total; i++)
1621                 plugin_show_toggles.values[i]->in_use = 0;
1622
1623
1624         for(Track *track = mwindow->edl->tracks->first;
1625                 track;
1626                 track = track->next)
1627         {
1628                 if(track->expand_view)
1629                 {
1630                         for(int i = 0; i < track->plugin_set.total; i++)
1631                         {
1632                                 PluginSet *pluginset = track->plugin_set.values[i];
1633
1634                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1635                                 {
1636                                         int64_t total_x, y, total_w, h;
1637                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1638
1639                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1640                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1641                                                 plugin->plugin_type != PLUGIN_NONE)
1642                                         {
1643                                                 int x = total_x, w = total_w, left_margin = 5;
1644                                                 int right_margin = 5;
1645                                                 if(x < 0)
1646                                                 {
1647                                                         w -= -x;
1648                                                         x = 0;
1649                                                 }
1650                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1651
1652                                                 draw_3segmenth(x,
1653                                                         y,
1654                                                         w,
1655                                                         total_x,
1656                                                         total_w,
1657                                                         mwindow->theme->get_image("plugin_bg_data"),
1658                                                         0);
1659                                                 set_color(mwindow->theme->title_color);
1660                                                 set_font(mwindow->theme->title_font);
1661                                                 plugin->calculate_title(string, 0);
1662
1663 // Truncate string to int64_test visible in background
1664                                                 int len = strlen(string), j;
1665                                                 for(j = len; j >= 0; j--)
1666                                                 {
1667                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1668                                                         {
1669                                                                 string[j] = 0;
1670                                                         }
1671                                                         else
1672                                                                 break;
1673                                                 }
1674
1675 // Justify the text on the left boundary of the edit if it is visible.
1676 // Otherwise justify it on the left side of the screen.
1677                                                 int64_t text_x = total_x + left_margin;
1678                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1679                                                 text_x = MAX(left_margin, text_x);
1680                                                 draw_text(text_x,
1681                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1682                                                         string,
1683                                                         strlen(string),
1684                                                         0);
1685                                                 int64_t min_x = total_x + text_w;
1686
1687
1688 // Update plugin toggles
1689                                                 int toggle_x = total_x + total_w;
1690                                                 int toggle_y = y;
1691                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1692
1693 // On toggle
1694                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1695                                                 if(toggle_x > min_x)
1696                                                 {
1697                                                         if(current_on >= plugin_on_toggles.total)
1698                                                         {
1699                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1700                                                                 add_subwindow(plugin_on);
1701                                                                 plugin_on_toggles.append(plugin_on);
1702                                                         }
1703                                                         else
1704                                                         {
1705                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1706                                                         }
1707                                                         current_on++;
1708                                                 }
1709
1710 // Toggles for standalone plugins only
1711                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1712                                                 {
1713 // Show
1714                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1715                                                         if(toggle_x > min_x)
1716                                                         {
1717                                                                 if(current_show >= plugin_show_toggles.total)
1718                                                                 {
1719                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1720                                                                         add_subwindow(plugin_show);
1721                                                                         plugin_show_toggles.append(plugin_show);
1722                                                                 }
1723                                                                 else
1724                                                                 {
1725                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1726                                                                 }
1727                                                                 current_show++;
1728                                                         }
1729                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + 10;
1730                                                         if(toggle_x > min_x)
1731                                                         {
1732                                                                 if(current_preset >= preset_edit_buttons.total)
1733                                                                 {
1734                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1735                                                                         add_subwindow(preset_edit);
1736                                                                         preset_edit_buttons.append(preset_edit);
1737                                                                 }
1738                                                                 else
1739                                                                 {
1740                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1741                                                                 }
1742                                                                 current_preset++;
1743                                                         }
1744                                                 }
1745                                         }
1746                                 }
1747                         }
1748                 }
1749         }
1750
1751 // Remove unused toggles
1752
1753         while(current_preset < preset_edit_buttons.total)
1754         {
1755                 preset_edit_buttons.remove_object_number(current_preset);
1756         }
1757         while(current_show < plugin_show_toggles.total)
1758         {
1759                 plugin_show_toggles.remove_object_number(current_show);
1760         }
1761
1762         while(current_on < plugin_on_toggles.total)
1763         {
1764                 plugin_on_toggles.remove_object_number(current_on);
1765         }
1766 }
1767
1768 void TrackCanvas::refresh_plugintoggles()
1769 {
1770         for(int i = 0; i < plugin_on_toggles.total; i++)
1771         {
1772                 PluginOn *on = plugin_on_toggles.values[i];
1773                 on->reposition_window(on->get_x(), on->get_y());
1774         }
1775         for(int i = 0; i < plugin_show_toggles.total; i++)
1776         {
1777                 PluginShow *show = plugin_show_toggles.values[i];
1778                 show->reposition_window(show->get_x(), show->get_y());
1779         }
1780         for(int i = 0; i < preset_edit_buttons.total; i++)
1781         {
1782                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1783                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1784         }
1785 }
1786
1787 void TrackCanvas::draw_hard_edges()
1788 {
1789         int64_t x, y, w, h;
1790
1791 //      if(!mwindow->edl->session->show_assets) return;
1792
1793         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1794                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1795                         if( !edit->hard_left && !edit->hard_right ) continue;
1796                         edit_dimensions(edit, x, y, w, h);
1797                         set_color(GREEN);
1798                         set_opaque();    int y1 = y+h-1;
1799                         if( edit->hard_left ) {
1800                                 ArrayList<int> xpt, ypt;
1801                                 xpt.append(x);              ypt.append(y1);
1802                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1803                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1804                                 fill_polygon(&xpt, &ypt);
1805                         }
1806                         if( edit->hard_right ) {
1807                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1808                                 xpt.append(x1);            ypt.append(y1);
1809                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1810                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1811                                 fill_polygon(&xpt, &ypt);
1812                         }
1813                 }
1814         }
1815 }
1816
1817 void TrackCanvas::draw_inout_points()
1818 {
1819 }
1820
1821
1822 void TrackCanvas::draw_drag_handle()
1823 {
1824         if(mwindow->session->current_operation == DRAG_EDITHANDLE2 ||
1825                 mwindow->session->current_operation == DRAG_PLUGINHANDLE2)
1826         {
1827 //printf("TrackCanvas::draw_drag_handle 1 %ld %ld\n", mwindow->session->drag_sample, mwindow->edl->local_session->view_start);
1828                 int64_t pixel1 = Units::round(mwindow->session->drag_position *
1829                         mwindow->edl->session->sample_rate /
1830                         mwindow->edl->local_session->zoom_sample -
1831                         mwindow->edl->local_session->view_start[pane->number]);
1832 //printf("TrackCanvas::draw_drag_handle 2 %d %jd\n", pane->number, pixel1);
1833                 set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1834                 set_inverse();
1835 //printf("TrackCanvas::draw_drag_handle 3\n");
1836                 draw_line(pixel1, 0, pixel1, get_h());
1837                 set_opaque();
1838 //printf("TrackCanvas::draw_drag_handle 4\n");
1839         }
1840 }
1841
1842
1843 void TrackCanvas::draw_transitions()
1844 {
1845         int64_t x, y, w, h;
1846
1847 //      if(!mwindow->edl->session->show_assets) return;
1848
1849         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1850                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1851                         if(!edit->transition) continue;
1852                         edit_dimensions(edit, x, y, w, h);
1853                         int strip_x = x, strip_y = y;
1854                         if(mwindow->edl->session->show_titles)
1855                                 strip_y += mwindow->theme->get_image("title_bg_data")->get_h();
1856                         get_transition_coords(x, y, w, h);
1857                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
1858                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
1859                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1860                                 MWindowGUI::visible(y, y + h, 0, get_h()) )
1861                         {
1862                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
1863                                                 track->data_type);
1864                                 if( !server ) continue;
1865                                 VFrame *picon = server->get_picon();
1866                                 if( !picon ) continue;
1867                                 draw_vframe(picon, x, y, w, h, 0, 0, picon->get_w(), picon->get_h());
1868                         }
1869                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
1870                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h()))
1871                         {
1872                                 int x = strip_x, w = strip_w;
1873                                 if(x < 0)
1874                                 {
1875                                         w -= -x;
1876                                         x = 0;
1877                                 }
1878                                 if(w + x > get_w()) w -= (w + x) - get_w();
1879
1880                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
1881                                         mwindow->theme->get_image("plugin_bg_data"), 0);
1882                         }
1883                 }
1884         }
1885 }
1886
1887 void TrackCanvas::draw_loop_points()
1888 {
1889 //printf("TrackCanvas::draw_loop_points 1\n");
1890         if(mwindow->edl->local_session->loop_playback)
1891         {
1892 //printf("TrackCanvas::draw_loop_points 2\n");
1893                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
1894                         mwindow->edl->session->sample_rate /
1895                         mwindow->edl->local_session->zoom_sample -
1896                         mwindow->edl->local_session->view_start[pane->number]);
1897 //printf("TrackCanvas::draw_loop_points 3\n");
1898
1899                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1900                 {
1901                         set_color(GREEN);
1902                         draw_line(x, 0, x, get_h());
1903                 }
1904 //printf("TrackCanvas::draw_loop_points 4\n");
1905
1906                 x = Units::round(mwindow->edl->local_session->loop_end *
1907                         mwindow->edl->session->sample_rate /
1908                         mwindow->edl->local_session->zoom_sample -
1909                         mwindow->edl->local_session->view_start[pane->number]);
1910 //printf("TrackCanvas::draw_loop_points 5\n");
1911
1912                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1913                 {
1914                         set_color(GREEN);
1915                         draw_line(x, 0, x, get_h());
1916                 }
1917 //printf("TrackCanvas::draw_loop_points 6\n");
1918         }
1919 //printf("TrackCanvas::draw_loop_points 7\n");
1920 }
1921
1922 void TrackCanvas::draw_brender_range()
1923 {
1924         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
1925         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
1926         if( mwindow->edl->session->brender_end > 0 )
1927         {
1928                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
1929                         mwindow->edl->session->sample_rate /
1930                         mwindow->edl->local_session->zoom_sample -
1931                         mwindow->edl->local_session->view_start[pane->number]);
1932                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
1933                 {
1934                         set_color(RED);
1935                         draw_line(x1, 0, x1, get_h());
1936                 }
1937                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
1938                         mwindow->edl->session->sample_rate /
1939                         mwindow->edl->local_session->zoom_sample -
1940                         mwindow->edl->local_session->view_start[pane->number]);
1941
1942                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
1943                 {
1944                         set_color(RED);
1945                         draw_line(x2, 0, x2, get_h());
1946                 }
1947         }
1948 }
1949
1950 // The operations which correspond to each automation type
1951 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
1952 {
1953         DRAG_MUTE,
1954         DRAG_CAMERA_X,
1955         DRAG_CAMERA_Y,
1956         DRAG_CAMERA_Z,
1957         DRAG_PROJECTOR_X,
1958         DRAG_PROJECTOR_Y,
1959         DRAG_PROJECTOR_Z,
1960         DRAG_FADE,
1961         DRAG_PAN,
1962         DRAG_MODE,
1963         DRAG_MASK,
1964         DRAG_SPEED
1965 };
1966
1967 // The buttonpress operations, so nothing changes unless the mouse moves
1968 // a certain amount.  This allows the keyframe to be used to position the
1969 // insertion point without moving itself.
1970 static int pre_auto_operations[AUTOMATION_TOTAL] =
1971 {
1972         DRAG_MUTE,
1973         DRAG_CAMERA_X,
1974         DRAG_CAMERA_Y,
1975         DRAG_CAMERA_Z,
1976         DRAG_PROJECTOR_X,
1977         DRAG_PROJECTOR_Y,
1978         DRAG_PROJECTOR_Z,
1979         DRAG_FADE,
1980         DRAG_PAN_PRE,
1981         DRAG_MODE_PRE,
1982         DRAG_MASK_PRE,
1983         DRAG_SPEED
1984 };
1985
1986
1987 int TrackCanvas::do_keyframes(int cursor_x,
1988         int cursor_y,
1989         int draw,
1990         int buttonpress,
1991         int &new_cursor,
1992         int &update_cursor,
1993         int &rerender)
1994 {
1995 // Note: button 3 (right mouse button) is not eaten to allow
1996 // track context menu to appear
1997         int result = 0;
1998         EDLSession *session = mwindow->edl->session;
1999
2000
2001
2002         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2003         {
2004                 0, 0, 0, 0, 0, 0, 0, 0,
2005                 pankeyframe_pixmap,
2006                 modekeyframe_pixmap,
2007                 maskkeyframe_pixmap,
2008         };
2009
2010
2011
2012         for(Track *track = mwindow->edl->tracks->first;
2013                 track && !result;
2014                 track = track->next) {
2015                 Auto *auto_keyframe = 0;
2016                 Automation *automation = track->automation;
2017
2018
2019 // Handle keyframes in reverse drawing order if a button press
2020                 int start = 0;
2021                 int end = AUTOMATION_TOTAL;
2022                 int step = 1;
2023                 if(buttonpress)
2024                 {
2025                         start = AUTOMATION_TOTAL - 1;
2026                         end = -1;
2027                         step = -1;
2028                 }
2029                 for(int i = start; i != end && !result; i += step)
2030                 {
2031 // Event not trapped and automation visible
2032                         Autos *autos = automation->autos[i];
2033                         if(!result && session->auto_conf->autos[i] && autos) {
2034                                 switch(i) {
2035                                 case AUTOMATION_MODE:
2036                                 case AUTOMATION_PAN:
2037                                 case AUTOMATION_MASK:
2038                                         result = do_autos(track, automation->autos[i],
2039                                                 cursor_x, cursor_y, draw,
2040                                                 buttonpress, auto_pixmaps[i],
2041                                                 auto_keyframe, rerender);
2042                                                 break;
2043
2044                                 default: {
2045                                         switch(autos->get_type()) {
2046                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2047                                                 Automation automation(0, track);
2048                                                 int grouptype = automation.autogrouptype(i, track);
2049                                                 if(draw) // Do dropshadow
2050                                                         result = do_float_autos(track, autos,
2051                                                                 cursor_x, cursor_y, draw,
2052                                                                 buttonpress, 1, 1, MDGREY,
2053                                                                 auto_keyframe, grouptype);
2054
2055                                                 result = do_float_autos(track, autos,
2056                                                         cursor_x, cursor_y, draw, buttonpress,
2057                                                         0, 0, GWindowGUI::auto_colors[i],
2058                                                         auto_keyframe, grouptype);
2059                                                 break; }
2060
2061                                         case Autos::AUTOMATION_TYPE_INT: {
2062                                                 if(draw) // Do dropshadow
2063                                                         result = do_int_autos(track, autos,
2064                                                                 cursor_x, cursor_y, draw,
2065                                                                 buttonpress, 1, 1, MDGREY,
2066                                                                 auto_keyframe);
2067                                                 result = do_int_autos(track, autos,
2068                                                         cursor_x, cursor_y, draw, buttonpress,
2069                                                         0, 0, GWindowGUI::auto_colors[i],
2070                                                         auto_keyframe);
2071                                                 break; }
2072                                         }
2073                                         break; }
2074                                 }
2075
2076                                 if(result)
2077                                 {
2078                                         if(mwindow->session->current_operation == auto_operations[i])
2079                                                 rerender = 1;
2080
2081 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2082 // __LINE__,
2083 // mwindow->session->current_operation,
2084 // auto_operations[i]);
2085                                         if(buttonpress)
2086                                         {
2087                                                 if (buttonpress != 3)
2088                                                 {
2089                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2090                                                                 synchronize_autos(0,
2091                                                                         track,
2092                                                                         (FloatAuto*)mwindow->session->drag_auto,
2093                                                                         1);
2094                                                         mwindow->session->current_operation = pre_auto_operations[i];
2095                                                         update_drag_caption();
2096                                                         rerender = 1;
2097                                                 }
2098                                                 else if( auto_keyframe )
2099                                                 {
2100                                                         gui->keyframe_menu->update(automation,
2101                                                                 autos,
2102                                                                 auto_keyframe);
2103                                                         gui->keyframe_menu->activate_menu();
2104                                                         rerender = 1; // the position changes
2105                                                 }
2106                                                 else if( autos )
2107                                                 {
2108                                                         gui->keyframe_hide->update(autos);
2109                                                         gui->keyframe_hide->activate_menu();
2110                                                         rerender = 1; // the position changes
2111                                                 }
2112                                                 if(buttonpress == 1 && ctrl_down() &&
2113                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2114                                                         rerender = 1; // special case: curve mode changed
2115                                         }
2116                                 }
2117                         }
2118                 }
2119
2120                 if(!result &&
2121                         session->auto_conf->plugins /* &&
2122                         mwindow->edl->session->show_assets */) {
2123                         Plugin *plugin;
2124                         KeyFrame *keyframe;
2125                         result = do_plugin_autos(track, cursor_x, cursor_y,
2126                                 draw, buttonpress, plugin, keyframe);
2127                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2128                                 rerender = 1;
2129                         }
2130                         if(result && (buttonpress == 1)) {
2131                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2132                                 update_drag_caption();
2133                                 rerender = 1;
2134                         }
2135                         else if (result && (buttonpress == 3)) {
2136                                 gui->keyframe_menu->update(plugin, keyframe);
2137                                 gui->keyframe_menu->activate_menu();
2138                                 rerender = 1; // the position changes
2139                         }
2140                 }
2141         }
2142
2143 // Final pass to trap event
2144         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2145                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2146                         mwindow->session->current_operation == auto_operations[i]) {
2147                         result = 1;
2148                         break;
2149                 }
2150         }
2151
2152         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2153                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2154                 result = 1;
2155         }
2156
2157         update_cursor = 1;
2158         if(result) {
2159                 new_cursor = UPRIGHT_ARROW_CURSOR;
2160         }
2161
2162
2163         return result;
2164 }
2165
2166 void TrackCanvas::draw_keyframe_reticle()
2167 {
2168         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2169         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2170
2171         int current_op = mwindow->session->current_operation, dragging = 0;
2172         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2173                 if( current_op == auto_operations[i] ) dragging = 1;
2174
2175         if( keyframe_hairline == HAIRLINE_DRAGGING && dragging ) {
2176                 if( mwindow->session->drag_auto && get_buttonpress() == 1 ) {
2177                         draw_hairline(mwindow->session->drag_auto, RED);
2178                         return;
2179                 }
2180         }
2181
2182         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == 2 &&
2183             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2184                 for( Track *track = mwindow->edl->tracks->first; track;
2185                      track=track->next ) {
2186                         Automation *automation = track->automation;
2187                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2188                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2189                                 // automation visible
2190                                 Autos *autos = automation->autos[i];
2191                                 if( !autos ) continue;
2192                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2193                                      auto_keyframe = auto_keyframe->next ) {
2194                                         draw_hairline(auto_keyframe, BLUE);
2195                                 }
2196                         }
2197
2198                         if( dragging && mwindow->session->drag_auto ) {
2199                                 draw_hairline(mwindow->session->drag_auto, RED);
2200                         }
2201                 }
2202         }
2203 }
2204
2205 void TrackCanvas::draw_auto(Auto *current,
2206         int x,
2207         int y,
2208         int center_pixel,
2209         int zoom_track)
2210 {
2211         int x1, y1, x2, y2;
2212
2213         x1 = x - HANDLE_W / 2;
2214         x2 = x + HANDLE_W / 2;
2215         y1 = center_pixel + y - HANDLE_W / 2;
2216         y2 = center_pixel + y + HANDLE_W / 2;
2217
2218         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2219         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2220
2221         draw_box(x1, y1, x2 - x1, y2 - y1);
2222 }
2223
2224
2225 // This draws lines for bezier in & out controls
2226 void TrackCanvas::draw_cropped_line(int x1,
2227         int y1,
2228         int x2,
2229         int y2,
2230         int min_y,
2231         int max_y)
2232 {
2233
2234
2235 // Don't care about x since it is clipped by the window.
2236 // Put y coords in ascending order
2237         if(y2 < y1) {
2238                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2239                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2240         }
2241
2242
2243
2244         double slope = (double)(x2 - x1) / (y2 - y1);
2245 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2246         if(y1 < min_y) {
2247                 x1 = (int)(x1 + (min_y - y1) * slope);
2248                 y1 = min_y;
2249         }
2250         else if(y1 >= max_y) {
2251                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2252                 y1 = max_y - 1;
2253         }
2254
2255         if(y2 >= max_y) {
2256                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2257                 y2 = max_y - 1;
2258         }
2259         else if(y2 < min_y) {
2260                 x2 = (int)(x2 + (min_y - y2) * slope);
2261                 y1 = min_y;
2262         }
2263
2264
2265 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2266         if( y1 >= min_y && y1 < max_y &&
2267             y2 >= min_y && y2 < max_y )
2268                 draw_line(x1, y1, x2, y2);
2269 }
2270
2271
2272 void TrackCanvas::draw_floatauto(FloatAuto *current,
2273         int x,
2274         int y,
2275         int in_x,
2276         int in_y,
2277         int out_x,
2278         int out_y,
2279         int center_pixel,
2280         int zoom_track,
2281         int color)
2282 {
2283         int x1 = x - HANDLE_W / 2; // Center
2284         int x2 = x + HANDLE_W / 2;
2285         int y1 = center_pixel + y - HANDLE_H / 2;
2286         int y2 = center_pixel + y + HANDLE_H / 2;
2287         int ymin = center_pixel - zoom_track / 2;
2288         int ymax = center_pixel + zoom_track / 2;
2289         CLAMP(y1, ymin, ymax);
2290         CLAMP(y2, ymin, ymax);
2291
2292         if(y2 - 1 > y1)
2293         {
2294                 set_color(BLACK);
2295                 draw_box(x1 + 1, y1 + 1, x2 - x1, y2 - y1);
2296                 set_color(color);
2297                 draw_box(x1, y1, x2 - x1, y2 - y1);
2298         }
2299
2300 // show bezier control points (only) if this
2301 // floatauto doesn't adjust it's tangents automatically
2302         if(current->curve_mode != FloatAuto::FREE &&
2303            current->curve_mode != FloatAuto::TFREE)
2304                 return;
2305
2306         if(in_x != x)
2307                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2308         if(out_x != x)
2309                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2310 }
2311
2312 inline int quantize(float f) { return (int)floor(f + 0.5); }
2313
2314 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2315         int x, int y, int cp_x, int cp_y, int center_pixel,
2316         int zoom_track, int color)
2317 // draw the tangent and a handle for given bézier ctrl point
2318 {
2319         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2320
2321         float slope = (float)(cp_y - y)/(cp_x - x);
2322         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2323         if(slope != 0)
2324                 cp_x = x + quantize((cp_y - y) / slope);
2325
2326         y    += center_pixel;
2327         cp_y += center_pixel;
2328
2329         // drawing the tangent as a dashed line...
2330         int const dash = HANDLE_W;
2331         int const gap  = HANDLE_W / 2;
2332         float sx = 3 * (cp_x - x) / 4.;
2333         float ex = 0;
2334
2335         // q is the x displacement for a unit line of slope
2336         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2337
2338         float dist = 1/q * sx;
2339         if( dist > dash )
2340                 ex = sx - q * dash;
2341
2342         set_color(color);
2343         do {
2344                 float sy = slope * sx, ey = slope * ex;
2345                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2346                 sx = ex - q * gap;
2347                 ex = sx - q * dash;
2348         } while(q*ex > 0);
2349
2350         if(handle_visible)
2351         {
2352                 int r = HANDLE_W / 2;
2353                 int cp_x1 = cp_x - r;
2354                 int cp_y1 = cp_y - r;
2355                 set_color(BLACK);
2356                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2357                 set_color(color);
2358                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2359         }
2360 }
2361
2362
2363 int TrackCanvas::test_auto(Auto *current,
2364         int x, int y, int center_pixel, int zoom_track,
2365         int cursor_x, int cursor_y, int buttonpress)
2366 {
2367         int x1, y1, x2, y2;
2368         int result = 0;
2369
2370         x1 = x - HANDLE_W / 2;
2371         x2 = x + HANDLE_W / 2;
2372         y1 = center_pixel + y - HANDLE_H / 2;
2373         y2 = center_pixel + y + HANDLE_H / 2;
2374         int ymin = center_pixel - zoom_track / 2;
2375         int ymax = center_pixel + zoom_track / 2;
2376         CLAMP(y1, ymin, ymax);
2377         CLAMP(y2, ymin, ymax);
2378
2379         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2380         {
2381                 if(buttonpress && buttonpress != 3)
2382                 {
2383                         mwindow->session->drag_auto = current;
2384                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2385                         // Toggle Autos don't respond to vertical zoom, they always show up
2386                         // with "on" == 100% == line on top
2387                         mwindow->session->drag_start_position = current->position;
2388                         mwindow->session->drag_origin_x = cursor_x;
2389                         mwindow->session->drag_origin_y = cursor_y;
2390                 }
2391                 result = 1;
2392         }
2393
2394         if(buttonpress && buttonpress != 3 && result)
2395         {
2396 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2397                 mwindow->undo->update_undo_before();
2398         }
2399
2400         return result;
2401 }
2402
2403 // some Helpers for test_floatauto(..)
2404 // and for dragging the tangents/ctrl points
2405 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2406         float cursor_x, float cursor_y)
2407 {
2408 // Control point switched off?
2409         if( x0 == ctrl_x ) return 0.0;
2410         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2411         double x = cursor_x-x0, y = cursor_y-y0;
2412 // wrong side of ctrl handle
2413         if( x*x1 < 0 ) return 0.0;
2414 // outside handle radius
2415         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2416         double xx1 = x1*x1, yy1 = y1*y1;
2417         double xx = x*x, yy = y*y;
2418 // distance squared from cursor to cursor projected to line from ctrl to handle
2419 //   along a line perpendicular to line from ctrl to handle (closest approach)
2420 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2421         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2422         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2423 }
2424
2425
2426 inline
2427 float levered_position(float position, float ref_pos)
2428 {
2429         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2430                 return 0.0;
2431         return ref_pos / position;
2432 }
2433
2434
2435 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2436 // transforms automation value into current display coords,
2437 // dependant on current automation display range for the given kind of automation
2438 {
2439         if(!mwindow || !mwindow->edl) return 0;
2440         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2441         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2442         float automation_range = automation_max - automation_min;
2443         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2444                 return 0;
2445         return (auto_value - automation_min) / automation_range;
2446 }
2447
2448
2449
2450 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2451         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2452         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2453 {
2454         int result = 0;
2455
2456         int x1 = x - HANDLE_W / 2;
2457         int x2 = x + HANDLE_W / 2;
2458         int y1 = center_pixel + y - HANDLE_W / 2;
2459         int y2 = center_pixel + y + HANDLE_W / 2;
2460         int ymin = center_pixel - zoom_track / 2;
2461         int ymax = center_pixel + zoom_track / 2;
2462         CLAMP(y1, ymin, ymax);
2463         CLAMP(y2, ymin, ymax);
2464
2465         int in_x1 = in_x - HANDLE_W / 2;
2466         int in_x2 = in_x + HANDLE_W / 2;
2467         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2468         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2469         CLAMP(in_y1, ymin, ymax);
2470         CLAMP(in_y2, ymin, ymax);
2471
2472         int out_x1 = out_x - HANDLE_W / 2;
2473         int out_x2 = out_x + HANDLE_W / 2;
2474         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2475         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2476         CLAMP(out_y1, ymin, ymax);
2477         CLAMP(out_y2, ymin, ymax);
2478
2479
2480 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2481 // buttonpress could be the start of a drag operation
2482 #define INIT_DRAG(POS,VAL) \
2483                 mwindow->session->drag_auto = current;      \
2484                 mwindow->session->drag_origin_x = cursor_x;  \
2485                 mwindow->session->drag_origin_y = cursor_y;   \
2486                 mwindow->session->drag_start_position = (POS); \
2487                 mwindow->session->drag_start_percentage = (VAL);
2488
2489 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2490
2491
2492 // without modifier we are manipulating the automation node
2493 // with ALT it's about dragging only the value of the node
2494 // with SHIFT the value snaps to the value of neighbouring nodes
2495 // CTRL indicates we are rather manipulating the tangent(s) of the node
2496
2497         if(!ctrl_down())
2498         {
2499                 if( WITHIN(x1,x2,y1,y2))
2500                 {       // cursor hits node
2501                         result = 1;
2502
2503                         if(buttonpress && (buttonpress != 3))
2504                         {
2505                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2506                                 mwindow->session->drag_handle = 0;
2507                 }       }
2508         }
2509         else // ctrl_down()
2510         {
2511                 if( WITHIN(x1,x2,y1,y2))
2512                 {
2513                         result = 1;
2514                         if(buttonpress && (buttonpress != 3))
2515                         {
2516                                 // could be ctrl-click or ctrl-drag
2517                                 // click would cycle through tangent modes
2518                                 ((FloatAuto*)current)->toggle_curve_mode();
2519
2520                                 // drag will start dragging the tangent, if applicable
2521                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2522                                 mwindow->session->drag_handle = 0;
2523                         }
2524                 }
2525
2526                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2527
2528 // Test in control
2529                 if( in_x != x && current->position > 0 &&
2530                         (FloatAuto::FREE == current->curve_mode ||
2531                          FloatAuto::TFREE == current->curve_mode))
2532 // act on in control handle only if
2533 // tangent is significant and is editable (not automatically choosen)
2534                 {
2535                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2536  // either cursor in ctrl-point handle or cursor on tangent line
2537                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2538                                 result = 1;
2539                                 if(buttonpress && (buttonpress != 3)) {
2540                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2541 //                                      lever = 1.0;
2542                                         mwindow->session->drag_handle = 1;
2543                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2544                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2545                                                   value_to_percentage(new_invalue, autogrouptype))
2546                                 }
2547                         }
2548                 }
2549
2550 // Test out control
2551                 if(out_x != x &&
2552                         (FloatAuto::FREE == current->curve_mode ||
2553                          FloatAuto::TFREE == current->curve_mode))
2554 // act on out control only if tangent is significant and is editable
2555                 {
2556                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2557                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2558                                 result = 1;
2559                                 if(buttonpress && (buttonpress != 3)) {
2560                                         if(lever == 0.0) lever=1.0;
2561 //                                      lever = 1.0;
2562                                         mwindow->session->drag_handle = 2;
2563                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2564                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2565                                                   value_to_percentage(new_outvalue, autogrouptype))
2566                                 }
2567                         }
2568                 }
2569         } // end ctrl_down()
2570
2571 #undef WITHIN
2572 #undef INIT_DRAG
2573
2574 // if(buttonpress)
2575 // printf("TrackCanvas::test_floatauto 2 drag_handle=%d ctrl_down=%d cursor_x=%d cursor_y=%d x1=%d x2=%d y1=%d y2=%d\n",
2576 // mwindow->session->drag_handle,
2577 // ctrl_down(),
2578 // cursor_x,
2579 // cursor_y,
2580 // x1, x2, y1, y2);
2581         if(buttonpress && (buttonpress != 3) && result)
2582         {
2583                 mwindow->undo->update_undo_before();
2584         }
2585
2586         return result;
2587 }
2588
2589
2590 // Get the float value & y for position x on the canvas
2591 #define X_TO_FLOATLINE(x) \
2592         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2593         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2594 /* Call by reference fails for some reason here */ \
2595         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2596         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2597         double position = unit_start + x * zoom_units; \
2598         double value = 0; \
2599         if(position2 > position1) \
2600         { \
2601                 value = value1 + \
2602                         (value2 - value1) * \
2603                         (position - position1) / \
2604                         (position2 - position1); \
2605         } \
2606         else \
2607         { \
2608                 value = value1; \
2609         } \
2610         AUTOMATIONCLAMPS(value, autogrouptype); \
2611         int y = center_pixel + \
2612                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2613
2614
2615 void TrackCanvas::draw_floatline(int center_pixel,
2616         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2617         double unit_start, double zoom_units, double yscale,
2618         int x1, int y1, int x2, int y2,
2619         int color, int autogrouptype)
2620 {
2621 // Solve bezier equation for either every pixel or a certain large number of
2622 // points.
2623
2624 // Not using slope intercept
2625         x1 = MAX(0, x1);
2626         int prev_y = y1 + center_pixel;
2627
2628
2629 // Call by reference fails for some reason here
2630         FloatAuto *previous1 = previous, *next1 = next;
2631         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2632         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2633         float automation_range = automation_max - automation_min;
2634
2635         for(int x = x1; x < x2; x++)
2636         {
2637 // Interpolate value between frames
2638                 X_TO_FLOATLINE(x)
2639
2640                 if(/* x > x1 && */
2641                         y >= center_pixel - yscale / 2 &&
2642                         y < center_pixel + yscale / 2 - 1)
2643                 {
2644 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2645 // y,
2646 // (int)(center_pixel - yscale / 2),
2647 // (int)(center_pixel + yscale / 2 - 1));
2648
2649 //printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
2650                         draw_line(x - 1, prev_y  , x, y   );
2651                 }
2652                 prev_y = y;
2653         }
2654 }
2655
2656
2657
2658
2659
2660 int TrackCanvas::test_floatline(int center_pixel,
2661                 FloatAutos *autos,
2662                 double unit_start,
2663                 double zoom_units,
2664                 double yscale,
2665                 int x1,
2666                 int x2,
2667                 int cursor_x,
2668                 int cursor_y,
2669                 int buttonpress,
2670                 int autogrouptype)
2671 {
2672         int result = 0;
2673
2674
2675         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2676         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2677         float automation_range = automation_max - automation_min;
2678         FloatAuto *previous1 = 0, *next1 = 0;
2679         X_TO_FLOATLINE(cursor_x);
2680
2681         if(cursor_x >= x1 &&
2682                 cursor_x < x2 &&
2683                 cursor_y >= y - HANDLE_W / 2 &&
2684                 cursor_y < y + HANDLE_W / 2 &&
2685                 !ctrl_down())
2686         {
2687                 result = 1;
2688
2689 // Menu
2690                 if(buttonpress == 3)
2691                 {
2692                 }
2693                 else
2694 // Create keyframe
2695                 if(buttonpress)
2696                 {
2697                         Auto *current;
2698                         mwindow->undo->update_undo_before();
2699                         double position = autos->track->from_units(position1);
2700                         position = mwindow->edl->align_to_frame(position, 0);
2701                         int64_t new_position = autos->track->to_units(position,0);
2702                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2703                         ((FloatAuto*)current)->set_value(value);
2704                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2705                         mwindow->session->drag_start_position = current->position;
2706                         mwindow->session->drag_origin_x = cursor_x;
2707                         mwindow->session->drag_origin_y = cursor_y;
2708                         mwindow->session->drag_handle = 0;
2709                 }
2710         }
2711
2712
2713         return result;
2714 }
2715
2716
2717 void TrackCanvas::synchronize_autos(float change,
2718                 Track *skip, FloatAuto *fauto, int fill_gangs)
2719 {
2720 // Handles the special case of modifying a fadeauto
2721 // when there are ganged faders on several tracks
2722 // (skip and fauto may be NULL if fill_gangs==-1)
2723
2724         if( fill_gangs > 0 && skip->gang ) {
2725                 double position = skip->from_units(fauto->position);
2726                 int autoidx = fauto->autos->autoidx;
2727
2728                 for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2729                         if( (current->data_type == skip->data_type || get_double_click()) &&
2730                             current->gang && current->record && current != skip ) {
2731                                 int64_t current_position = current->to_units(position, 1);
2732                                 FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2733                                 float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2734                                 float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2735                                 FloatAuto *previous = 0, *next = 0;
2736                                 FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(current_position);
2737                                 if( !keyframe ) {
2738 // create keyframe on neighbouring track at the point in time given by fauto
2739                                         float init_value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2740                                         float new_value = init_value + change;
2741                                         CLAMP(new_value, auto_min, auto_max);
2742                                         keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2743                                         keyframe->set_value(new_value);
2744                                 }
2745                                 else {
2746 // keyframe exists, just change it
2747                                         float new_value = keyframe->get_value() + change;
2748                                         CLAMP(new_value, auto_min, auto_max);
2749                                         keyframe->adjust_to_new_coordinates(current_position, new_value);
2750 // need to (re)set the position, as the existing node could be on a "equivalent" position (within half a frame)
2751                                 }
2752
2753                                 mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2754                         }
2755                 }
2756         }
2757         else if( !fill_gangs ) {
2758                 double position = skip->from_units(fauto->position);
2759 // Move the gangs
2760                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2761                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2762                         int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2763                         float new_value = keyframe->get_value() + change;
2764                         CLAMP(new_value,
2765                               mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2766                               mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2767                         keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2768                 }
2769
2770         }
2771         else {
2772 // remove the gangs
2773                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2774                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2775                         keyframe->autos->remove_nonsequential(
2776                                         keyframe);
2777                 }
2778                 mwindow->session->drag_auto_gang->remove_all();
2779         }
2780 }
2781
2782
2783 void TrackCanvas::draw_toggleline(int center_pixel,
2784         int x1,
2785         int y1,
2786         int x2,
2787         int y2)
2788 {
2789         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2790
2791         if(y2 != y1)
2792         {
2793                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2794         }
2795 }
2796
2797 int TrackCanvas::test_toggleline(Autos *autos,
2798         int center_pixel,
2799         int x1,
2800         int y1,
2801         int x2,
2802         int y2,
2803         int cursor_x,
2804         int cursor_y,
2805         int buttonpress)
2806 {
2807         int result = 0;
2808         if(cursor_x >= x1 && cursor_x < x2)
2809         {
2810                 int miny = center_pixel + y1 - HANDLE_W / 2;
2811                 int maxy = center_pixel + y1 + HANDLE_W / 2;
2812                 if(cursor_y >= miny && cursor_y < maxy)
2813                 {
2814                         result = 1;
2815
2816 // Menu
2817                         if(buttonpress == 3)
2818                         {
2819                         }
2820                         else
2821 // Insert keyframe
2822                         if(buttonpress)
2823                         {
2824                                 Auto *current;
2825                                 double position = (double)(cursor_x +
2826                                                 mwindow->edl->local_session->view_start[pane->number]) *
2827                                         mwindow->edl->local_session->zoom_sample /
2828                                         mwindow->edl->session->sample_rate;
2829                                 int64_t unit_position = autos->track->to_units(position, 0);
2830                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
2831
2832                                 mwindow->undo->update_undo_before();
2833
2834                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
2835                                 ((IntAuto*)current)->value = new_value;
2836                                 // Toggle Autos don't respond to vertical zoom, they always show up
2837                                 // with "on" == 100% == line on top
2838                                 mwindow->session->drag_start_percentage = (float)new_value;
2839                                 mwindow->session->drag_start_position = current->position;
2840                                 mwindow->session->drag_origin_x = cursor_x;
2841                                 mwindow->session->drag_origin_y = cursor_y;
2842                         }
2843                 }
2844         };
2845
2846         return result;
2847 }
2848
2849 void TrackCanvas::calculate_viewport(Track *track,
2850         double &view_start,   // Seconds
2851         double &unit_start,
2852         double &view_end,     // Seconds
2853         double &unit_end,
2854         double &yscale,
2855         int &center_pixel,
2856         double &zoom_sample,
2857         double &zoom_units)
2858 {
2859         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
2860                 mwindow->edl->local_session->zoom_sample /
2861                 mwindow->edl->session->sample_rate;
2862         unit_start = track->to_doubleunits(view_start);
2863         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
2864                 get_w()) *
2865                 mwindow->edl->local_session->zoom_sample /
2866                 mwindow->edl->session->sample_rate;
2867         unit_end = track->to_doubleunits(view_end);
2868         yscale = mwindow->edl->local_session->zoom_track;
2869 //printf("TrackCanvas::calculate_viewport yscale=%.0f\n", yscale);
2870         center_pixel = (int)(track->y_pixel -
2871                         mwindow->edl->local_session->track_start[pane->number] +
2872                         yscale / 2) +
2873                 (mwindow->edl->session->show_titles ?
2874                         mwindow->theme->get_image("title_bg_data")->get_h() :
2875                         0);
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 = (int)(track->y_pixel -
3369                         mwindow->edl->local_session->track_start[pane->number] +
3370                         mwindow->edl->local_session->zoom_track +
3371                         (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h() +
3372                         (mwindow->edl->session->show_titles ? mwindow->theme->get_image("title_bg_data")->get_h() : 0));
3373
3374                 for(Plugin *plugin = (Plugin*)plugin_set->first;
3375                         plugin && !result;
3376                         plugin = (Plugin*)plugin->next)
3377                 {
3378                         for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
3379                                 keyframe && !result;
3380                                 keyframe = (KeyFrame*)keyframe->next)
3381                         {
3382 //printf("TrackCanvas::draw_plugin_autos 3 %d\n", keyframe->position);
3383                                 if(keyframe->position >= unit_start && keyframe->position < unit_end)
3384                                 {
3385                                         int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
3386                                         int y = center_pixel - keyframe_pixmap->get_h() / 2;
3387
3388 //printf("TrackCanvas::draw_plugin_autos 4 %d %d\n", x, center_pixel);
3389                                         if(!draw)
3390                                         {
3391                                                 if(cursor_x >= x && cursor_y >= y &&
3392                                                         cursor_x < x + keyframe_pixmap->get_w() &&
3393                                                         cursor_y < y + keyframe_pixmap->get_h())
3394                                                 {
3395                                                         result = 1;
3396                                                         keyframe_plugin = plugin;
3397                                                         keyframe_instance = keyframe;
3398
3399                                                         if(buttonpress)
3400                                                         {
3401                                                                 mwindow->session->drag_auto = keyframe;
3402                                                                 mwindow->session->drag_start_position = keyframe->position;
3403                                                                 mwindow->session->drag_origin_x = cursor_x;
3404                                                                 mwindow->session->drag_origin_y = cursor_y;
3405
3406                                                                 double position = track->from_units(keyframe->position);
3407                                                                 double center = (mwindow->edl->local_session->get_selectionstart(1) +
3408                                                                         mwindow->edl->local_session->get_selectionend(1)) /
3409                                                                         2;
3410
3411                                                                 if(!shift_down())
3412                                                                 {
3413                                                                         mwindow->edl->local_session->set_selectionstart(position);
3414                                                                         mwindow->edl->local_session->set_selectionend(position);
3415                                                                 }
3416                                                                 else
3417                                                                 if(position < center)
3418                                                                 {
3419                                                                         mwindow->edl->local_session->set_selectionstart(position);
3420                                                                 }
3421                                                                 else
3422                                                                         mwindow->edl->local_session->set_selectionend(position);
3423                                                         }
3424                                                 }
3425                                         }
3426                                         else
3427                                                 draw_pixmap(keyframe_pixmap,
3428                                                         x,
3429                                                         y);
3430                                 }
3431                         }
3432                 }
3433         }
3434
3435
3436
3437 //      if(buttonpress && buttonpress != 3 && result)
3438 //      {
3439 //              mwindow->undo->update_undo_before();
3440 //      }
3441
3442         return result;
3443 }
3444
3445 int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color)
3446 {
3447         Track *track = auto_keyframe->autos->track;
3448         int autogrouptype = auto_keyframe->autos->get_type();
3449
3450         int center_pixel;
3451         double view_start, unit_start;
3452         double view_end, unit_end, yscale;
3453         double zoom_sample, zoom_units;
3454
3455         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
3456                         yscale, center_pixel, zoom_sample, zoom_units);
3457
3458         double ax = 0, ay = 0;
3459         calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
3460                 auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
3461
3462         set_color(color);
3463         draw_line(ax, 0, ax, get_h());
3464         return 0;
3465 }
3466
3467 void TrackCanvas::draw_overlays()
3468 {
3469         int new_cursor, update_cursor, rerender;
3470
3471 // Move background pixmap to foreground pixmap
3472         draw_pixmap(background_pixmap,
3473                 0,
3474                 0,
3475                 get_w(),
3476                 get_h(),
3477                 0,
3478                 0);
3479
3480 // In/Out points
3481         draw_inout_points();
3482
3483 // Transitions
3484         if(mwindow->edl->session->auto_conf->transitions) draw_transitions();
3485
3486 // Plugins
3487         draw_plugins();
3488         draw_hard_edges();
3489
3490 // Loop points
3491         draw_loop_points();
3492         draw_brender_range();
3493
3494 // Highlighted areas
3495         draw_highlighting();
3496
3497 // Automation
3498         do_keyframes(0, 0, 1, 0, new_cursor, update_cursor, rerender);
3499
3500 // Selection cursor
3501         if(pane->cursor) pane->cursor->restore(1);
3502
3503 // Handle dragging
3504         draw_drag_handle();
3505
3506 // Playback cursor
3507         draw_playback_cursor();
3508
3509         draw_keyframe_reticle();
3510
3511         show_window(0);
3512 }
3513
3514 int TrackCanvas::activate()
3515 {
3516         if(!active)
3517         {
3518 //printf("TrackCanvas::activate %d %d\n", __LINE__, pane->number);
3519 //BC_Signals::dump_stack();
3520                 get_top_level()->deactivate();
3521                 active = 1;
3522                 set_active_subwindow(this);
3523                 pane->cursor->activate();
3524                 gui->focused_pane = pane->number;
3525         }
3526         return 0;
3527 }
3528
3529 int TrackCanvas::deactivate()
3530 {
3531         if(active)
3532         {
3533                 active = 0;
3534                 pane->cursor->deactivate();
3535         }
3536         return 0;
3537 }
3538
3539
3540 void TrackCanvas::update_drag_handle()
3541 {
3542         double new_position;
3543         int cursor_x = get_cursor_x();
3544
3545         new_position =
3546                 (double)(cursor_x +
3547                 mwindow->edl->local_session->view_start[pane->number]) *
3548                 mwindow->edl->local_session->zoom_sample /
3549                 mwindow->edl->session->sample_rate;
3550
3551         new_position =
3552                 mwindow->edl->align_to_frame(new_position, 0);
3553
3554         if( ctrl_down() && alt_down() ) {
3555 #define snapper(v) do { \
3556         double pos = (v); \
3557         if( pos < 0 ) break; \
3558         double dist = fabs(new_position - pos); \
3559         if( dist >= snap_min ) break; \
3560         snap_position = pos;  snap_min = dist; \
3561 } while(0)
3562                 double snap_position = new_position;
3563                 double snap_min = DBL_MAX;
3564                 if( mwindow->edl->local_session->inpoint_valid() )
3565                         snapper(mwindow->edl->local_session->get_inpoint());
3566                 if( mwindow->edl->local_session->outpoint_valid() )
3567                         snapper(mwindow->edl->local_session->get_outpoint());
3568                 snapper(mwindow->edl->prev_edit(new_position));
3569                 snapper(mwindow->edl->next_edit(new_position));
3570                 Label *prev_label = mwindow->edl->labels->prev_label(new_position);
3571                 if( prev_label ) snapper(prev_label->position);
3572                 Label *next_label = mwindow->edl->labels->next_label(new_position);
3573                 if( next_label ) snapper(next_label->position);
3574                 int snap_x = snap_position * mwindow->edl->session->sample_rate /
3575                         mwindow->edl->local_session->zoom_sample -
3576                         mwindow->edl->local_session->view_start[pane->number];
3577                 if( abs(snap_x - cursor_x) < HANDLE_W ) {
3578                         snapped = 1;
3579                         new_position = snap_position;
3580                 }
3581 #undef snapper
3582         }
3583
3584         if(new_position != mwindow->session->drag_position)
3585         {
3586                 mwindow->session->drag_position = new_position;
3587                 gui->mainclock->update(new_position);
3588
3589
3590                 timebar_position = new_position;
3591                 gui->update_timebar(0);
3592 // Que the CWindow.  Doesn't do anything if selectionstart and selection end
3593 // aren't changed.
3594 //              mwindow->cwindow->update(1, 0, 0);
3595         }
3596 }
3597
3598 int TrackCanvas::update_drag_edit()
3599 {
3600         int result = 0;
3601
3602
3603
3604         return result;
3605 }
3606
3607 int TrackCanvas::get_drag_values(float *percentage,
3608         int64_t *position,
3609         int do_clamp,
3610         int cursor_x,
3611         int cursor_y,
3612         Auto *current)
3613 {
3614         //int x = cursor_x - mwindow->session->drag_origin_x;
3615         //int y = cursor_y - mwindow->session->drag_origin_y;
3616         *percentage = 0;
3617         *position = 0;
3618
3619         if(!current->autos->track->record) return 1;
3620         double view_start;
3621         double unit_start;
3622         double view_end;
3623         double unit_end;
3624         double yscale;
3625         int center_pixel;
3626         double zoom_sample;
3627         double zoom_units;
3628
3629         calculate_viewport(current->autos->track,
3630                 view_start,
3631                 unit_start,
3632                 view_end,
3633                 unit_end,
3634                 yscale,
3635                 center_pixel,
3636                 zoom_sample,
3637                 zoom_units);
3638
3639         *percentage = (float)(mwindow->session->drag_origin_y - cursor_y) /
3640                 yscale +
3641                 mwindow->session->drag_start_percentage;
3642         if(do_clamp) CLAMP(*percentage, 0, 1);
3643
3644         *position = Units::to_int64(zoom_units *
3645                 (cursor_x - mwindow->session->drag_origin_x) +
3646                 mwindow->session->drag_start_position + 0.5);
3647
3648         if((do_clamp) && *position < 0) *position = 0;
3649         return 0;
3650 }
3651
3652
3653 #define UPDATE_DRAG_HEAD(do_clamp) \
3654         int result = 0, center_pixel; \
3655         if(!current->autos->track->record) return 0; \
3656         double view_start, unit_start, view_end, unit_end; \
3657         double yscale, zoom_sample, zoom_units; \
3658  \
3659         calculate_viewport(current->autos->track,  \
3660                 view_start, unit_start, view_end, unit_end, \
3661                 yscale, center_pixel, zoom_sample, zoom_units); \
3662  \
3663         float percentage = (float)(mwindow->session->drag_origin_y - cursor_y) / \
3664                 yscale +  mwindow->session->drag_start_percentage; \
3665         if(do_clamp) CLAMP(percentage, 0, 1); \
3666  \
3667         int64_t position = Units::to_int64(zoom_units * \
3668                 (cursor_x - mwindow->session->drag_origin_x) + \
3669                 mwindow->session->drag_start_position); \
3670         if((do_clamp) && position < 0) position = 0;
3671
3672
3673 int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
3674 {
3675         FloatAuto *current = (FloatAuto*)mwindow->session->drag_auto;
3676
3677         UPDATE_DRAG_HEAD(mwindow->session->drag_handle == 0);
3678         int x = cursor_x - mwindow->session->drag_origin_x;
3679         int y = cursor_y - mwindow->session->drag_origin_y;
3680         float value, old_value;
3681
3682         if( mwindow->session->drag_handle == 0 && (ctrl_down() && !shift_down()) ) {
3683 // not really editing the node, rather start editing the curve
3684 // tangent is editable and drag movement is significant
3685                 if( (FloatAuto::FREE == current->curve_mode ||
3686                      FloatAuto::TFREE==current->curve_mode) &&
3687                     (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
3688                         mwindow->session->drag_handle = x < 0 ? 1 : 2;
3689         }
3690
3691         switch(mwindow->session->drag_handle) {
3692         case 0: // Center
3693 // Snap to nearby values
3694                 old_value = current->get_value();
3695                 if(shift_down()) {
3696                         double value1, value2, distance1, distance2;
3697
3698                         if(current->previous) {
3699                                 int autogrouptype = current->previous->autos->autogrouptype;
3700                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3701                                 value1 = ((FloatAuto*)current->previous)->get_value();
3702                                 distance1 = fabs(value - value1);
3703                                 current->set_value(value1);
3704                         }
3705
3706                         if(current->next) {
3707                                 int autogrouptype = current->next->autos->autogrouptype;
3708                                 value = percentage_to_value(percentage, 0, 0, autogrouptype);
3709                                 value2 = ((FloatAuto*)current->next)->get_value();
3710                                 distance2 = fabs(value - value2);
3711                                 if(!current->previous || distance2 < distance1) {
3712                                         current->set_value(value2);
3713                                 }
3714                         }
3715
3716                         if(!current->previous && !current->next) {
3717                                 current->set_value( ((FloatAutos*)current->autos)->default_);
3718                         }
3719                         value = current->get_value();
3720                 }
3721                 else {
3722                         int autogrouptype = current->autos->autogrouptype;
3723                         value = percentage_to_value(percentage, 0, 0, autogrouptype);
3724                 }
3725
3726                 if(alt_down() && !shift_down())
3727 // ALT constrains movement: fixed position, only changing the value
3728                         position = mwindow->session->drag_start_position;
3729
3730                 if(value != old_value || position != current->position) {
3731                         result = 1;
3732                         float change = value - old_value;
3733                         current->adjust_to_new_coordinates(position, value);
3734                         synchronize_autos(change, current->autos->track, current, 0);
3735                         show_message(current, 1,", %.2f", current->get_value());
3736                 }
3737                 break;
3738
3739 // In control
3740         case 1: {
3741                 int autogrouptype = current->autos->autogrouptype;
3742                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3743                 if(value != current->get_control_in_value())
3744                 {
3745                         result = 1;
3746                         // note: (position,value) need not be at the location of the ctrl point,
3747                         // but could be somewhere in between on the curve (or even outward or
3748                         // on the opposit side). We set the new control point such as
3749                         // to point the curve through (position,value)
3750                         current->set_control_in_value(
3751                                 value * levered_position(position - current->position,
3752                                                          current->get_control_in_position()));
3753                         synchronize_autos(0, current->autos->track, current, 0);
3754                         show_message(current, 1,", %.2f", current->get_control_in_value());
3755                 }
3756                 break; }
3757
3758 // Out control
3759         case 2: {
3760                 int autogrouptype = current->autos->autogrouptype;
3761                 value = percentage_to_value(percentage, 0, current, autogrouptype);
3762                 if(value != current->get_control_out_value()) {
3763                         result = 1;
3764                         current->set_control_out_value(
3765                                 value * levered_position(position - current->position,
3766                                                          current->get_control_out_position()));
3767                         synchronize_autos(0, current->autos->track, current, 0);
3768                         show_message(current, 1,", %.2f", current->get_control_out_value());
3769                 }
3770                 break; }
3771         }
3772
3773         return result;
3774 }
3775
3776 int TrackCanvas::update_drag_toggleauto(int cursor_x, int cursor_y)
3777 {
3778         IntAuto *current = (IntAuto*)mwindow->session->drag_auto;
3779
3780         UPDATE_DRAG_HEAD(1);
3781         int value = (int)percentage_to_value(percentage, 1, 0, AUTOGROUPTYPE_INT255);
3782
3783         if(value != current->value || position != current->position)
3784         {
3785                 result = 1;
3786                 current->value = value;
3787                 current->position = position;
3788                 show_message(current, 0,", %d", current->value);
3789         }
3790
3791         return result;
3792 }
3793
3794 // Autos which can't change value through dragging.
3795
3796 int TrackCanvas::update_drag_auto(int cursor_x, int cursor_y)
3797 {
3798         Auto *current = (Auto*)mwindow->session->drag_auto;
3799
3800         UPDATE_DRAG_HEAD(1)
3801         if(position != current->position)
3802         {
3803                 result = 1;
3804                 current->position = position;
3805                 show_message(current, 0,"");
3806
3807                 double position_f = current->autos->track->from_units(current->position);
3808                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
3809                         mwindow->edl->local_session->get_selectionend(1)) /
3810                         2;
3811                 if(!shift_down())
3812                 {
3813                         mwindow->edl->local_session->set_selectionstart(position_f);
3814                         mwindow->edl->local_session->set_selectionend(position_f);
3815                 }
3816                 else
3817                 if(position_f < center_f)
3818                 {
3819                         mwindow->edl->local_session->set_selectionstart(position_f);
3820                 }
3821                 else
3822                         mwindow->edl->local_session->set_selectionend(position_f);
3823         }
3824
3825
3826         return result;
3827 }
3828
3829 int TrackCanvas::update_drag_pluginauto(int cursor_x, int cursor_y)
3830 {
3831         KeyFrame *current = (KeyFrame*)mwindow->session->drag_auto;
3832
3833         UPDATE_DRAG_HEAD(1)
3834         if(position != current->position)
3835         {
3836 //      printf("uida: autos: %p, track: %p ta: %p\n", current->autos, current->autos->track, current->autos->track->automation);
3837                 Track *track = current->autos->track;
3838                 //PluginAutos *pluginautos = (PluginAutos *)current->autos;
3839                 PluginSet *pluginset;
3840                 Plugin *plugin = 0;
3841 // figure out the correct pluginset & correct plugin
3842                 int found = 0;
3843                 for(int i = 0; i < track->plugin_set.total; i++)
3844                 {
3845                         pluginset = track->plugin_set.values[i];
3846                         for(plugin = (Plugin *)pluginset->first; plugin; plugin = (Plugin *)plugin->next)
3847                         {
3848                                 KeyFrames *keyframes = plugin->keyframes;
3849                                 for(KeyFrame *currentkeyframe = (KeyFrame *)keyframes->first;
3850                                         currentkeyframe;
3851                                         currentkeyframe = (KeyFrame *) currentkeyframe->next)
3852                                 {
3853                                         if (currentkeyframe == current)
3854                                         {
3855                                                 found = 1;
3856                                                 break;
3857                                         }
3858
3859                                 }
3860                                 if (found) break;
3861                         }
3862                         if (found) break;
3863                 }
3864
3865                 mwindow->session->plugin_highlighted = plugin;
3866                 mwindow->session->track_highlighted = track;
3867                 result = 1;
3868                 current->position = position;
3869                 show_message(current, 0,"");
3870
3871                 double position_f = current->autos->track->from_units(current->position);
3872                 double center_f = (mwindow->edl->local_session->get_selectionstart(1) +
3873                         mwindow->edl->local_session->get_selectionend(1)) /
3874                         2;
3875                 if(!shift_down())
3876                 {
3877                         mwindow->edl->local_session->set_selectionstart(position_f);
3878                         mwindow->edl->local_session->set_selectionend(position_f);
3879                 }
3880                 else
3881                 if(position_f < center_f)
3882                 {
3883                         mwindow->edl->local_session->set_selectionstart(position_f);
3884                 }
3885                 else
3886                         mwindow->edl->local_session->set_selectionend(position_f);
3887         }
3888
3889
3890         return result;
3891 }
3892
3893 void TrackCanvas::update_drag_caption()
3894 {
3895         switch(mwindow->session->current_operation)
3896         {
3897                 case DRAG_FADE:
3898
3899                         break;
3900         }
3901 }
3902
3903
3904
3905 int TrackCanvas::cursor_motion_event()
3906 {
3907         int result = 0;
3908         int cursor_x = 0;
3909         int cursor_y = 0;
3910         int update_clock = 0;
3911         int update_zoom = 0;
3912         int update_scroll = 0;
3913         int update_overlay = 0;
3914         int update_cursor = 0;
3915         int new_cursor = 0;
3916         int rerender = 0;
3917         double position = 0.;
3918 //printf("TrackCanvas::cursor_motion_event %d\n", __LINE__);
3919
3920 // Default cursor
3921         switch(mwindow->edl->session->editing_mode)
3922         {
3923                 case EDITING_ARROW: new_cursor = ARROW_CURSOR; break;
3924                 case EDITING_IBEAM: new_cursor = IBEAM_CURSOR; break;
3925         }
3926
3927         switch(mwindow->session->current_operation)
3928         {
3929                 case DRAG_EDITHANDLE1:
3930 // Outside threshold.  Upgrade status
3931                         if(active)
3932                         {
3933                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
3934                                 {
3935                                         mwindow->session->current_operation = DRAG_EDITHANDLE2;
3936                                         update_overlay = 1;
3937                                 }
3938                         }
3939                         break;
3940
3941                 case DRAG_EDITHANDLE2:
3942                         if(active)
3943                         {
3944                                 update_drag_handle();
3945                                 update_overlay = 1;
3946                         }
3947                         break;
3948
3949                 case DRAG_PLUGINHANDLE1:
3950                         if(active)
3951                         {
3952                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
3953                                 {
3954                                         mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
3955                                         update_overlay = 1;
3956                                 }
3957                         }
3958                         break;
3959
3960                 case DRAG_PLUGINHANDLE2:
3961                         if(active)
3962                         {
3963                                 update_drag_handle();
3964                                 update_overlay = 1;
3965                         }
3966                         break;
3967
3968 // Rubber band curves
3969                 case DRAG_FADE:
3970                 case DRAG_SPEED:
3971                 case DRAG_CZOOM:
3972                 case DRAG_PZOOM:
3973                 case DRAG_CAMERA_X:
3974                 case DRAG_CAMERA_Y:
3975                 case DRAG_CAMERA_Z:
3976                 case DRAG_PROJECTOR_X:
3977                 case DRAG_PROJECTOR_Y:
3978                 case DRAG_PROJECTOR_Z:
3979                         if(active) rerender = update_overlay =
3980                                 update_drag_floatauto(get_cursor_x(), get_cursor_y());
3981                         break;
3982
3983                 case DRAG_PLAY:
3984                         if(active) rerender = update_overlay =
3985                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
3986                         break;
3987
3988                 case DRAG_MUTE:
3989                         if(active) rerender = update_overlay =
3990                                 update_drag_toggleauto(get_cursor_x(), get_cursor_y());
3991                         break;
3992
3993 // Keyframe icons are sticky
3994                 case DRAG_PAN_PRE:
3995                 case DRAG_MASK_PRE:
3996                 case DRAG_MODE_PRE:
3997                 case DRAG_PLUGINKEY_PRE:
3998                         if(active) {
3999                                 if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W) {
4000                                         mwindow->session->current_operation++;
4001                                         update_overlay = 1;
4002
4003                                         mwindow->undo->update_undo_before();
4004                                 }
4005                         }
4006                         break;
4007
4008                 case DRAG_PAN:
4009                 case DRAG_MASK:
4010                 case DRAG_MODE:
4011                         if(active) rerender = update_overlay =
4012                                 update_drag_auto(get_cursor_x(), get_cursor_y());
4013                         break;
4014
4015                 case DRAG_PLUGINKEY:
4016                         if(active) rerender = update_overlay =
4017                                 update_drag_pluginauto(get_cursor_x(), get_cursor_y());
4018                         break;
4019
4020                 case SELECT_REGION:
4021                         if(active) {
4022                                 cursor_x = get_cursor_x();
4023                                 cursor_y = get_cursor_y();
4024                                 position = (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4025                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4026
4027                                 position = mwindow->edl->align_to_frame(position, 0);
4028                                 position = MAX(position, 0);
4029
4030                                 if(position < selection_midpoint) {
4031                                         mwindow->edl->local_session->set_selectionend(selection_midpoint);
4032                                         mwindow->edl->local_session->set_selectionstart(position);
4033         // Que the CWindow
4034                                         gui->unlock_window();
4035                                         mwindow->cwindow->update(1, 0, 0, 0, 1);
4036                                         gui->lock_window("TrackCanvas::cursor_motion_event 1");
4037         // Update the faders
4038                                         mwindow->update_plugin_guis();
4039                                         gui->update_patchbay();
4040                                 }
4041                                 else {
4042                                         mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4043                                         mwindow->edl->local_session->set_selectionend(position);
4044         // Don't que the CWindow
4045                                 }
4046
4047                                 timebar_position = mwindow->edl->local_session->get_selectionend(1);
4048
4049                                 gui->hide_cursor(0);
4050                                 gui->draw_cursor(1);
4051                                 gui->update_timebar(0);
4052                                 gui->flash_canvas(1);
4053                                 result = 1;
4054                                 update_clock = 1;
4055                                 update_zoom = 1;
4056                                 update_scroll = 1;
4057                         }
4058                         break;
4059
4060                 default:
4061                         if(is_event_win() && cursor_inside()) {
4062 // Update clocks
4063                                 cursor_x = get_cursor_x();
4064                                 position = (double)cursor_x *
4065                                         (double)mwindow->edl->local_session->zoom_sample /
4066                                         (double)mwindow->edl->session->sample_rate +
4067                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4068                                         (double)mwindow->edl->local_session->zoom_sample /
4069                                         (double)mwindow->edl->session->sample_rate;
4070                                 position = mwindow->edl->align_to_frame(position, 0);
4071                                 update_clock = 1;
4072
4073 // set all timebars
4074                                 for(int i = 0; i < TOTAL_PANES; i++)
4075                                         if(gui->pane[i]) gui->pane[i]->canvas->timebar_position = position;
4076
4077 //printf("TrackCanvas::cursor_motion_event %d %d %p %p\n", __LINE__, pane->number, pane, pane->timebar);
4078                                 gui->update_timebar(0);
4079 // Update cursor
4080                                 if(do_transitions(get_cursor_x(), get_cursor_y(),
4081                                                 0, new_cursor, update_cursor)) break;
4082                                 if(do_keyframes(get_cursor_x(), get_cursor_y(),
4083                                         0, 0, new_cursor, update_cursor, rerender)) break;
4084                                 if(do_edit_handles(get_cursor_x(), get_cursor_y(),
4085                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4086 // Plugin boundaries
4087                                 if(do_plugin_handles(get_cursor_x(), get_cursor_y(),
4088                                         0, rerender, update_overlay, new_cursor, update_cursor)) break;
4089                                 if(do_edits(get_cursor_x(), get_cursor_y(),
4090                                         0, 0, update_overlay, rerender, new_cursor, update_cursor)) break;
4091                         }
4092                         break;
4093         }
4094
4095 //printf("TrackCanvas::cursor_motion_event 1\n");
4096         if(update_cursor && new_cursor != get_cursor())
4097         {
4098                 set_cursor(new_cursor, 0, 1);
4099         }
4100
4101 //printf("TrackCanvas::cursor_motion_event 1 %d\n", rerender);
4102         if(rerender && render_timer->get_difference() > 0.25 ) {
4103                 render_timer->update();
4104                 mwindow->restart_brender();
4105                 mwindow->sync_parameters(CHANGE_PARAMS);
4106                 mwindow->update_plugin_guis();
4107                 gui->unlock_window();
4108                 mwindow->cwindow->update(1, 0, 0, 0, 1);
4109                 gui->lock_window("TrackCanvas::cursor_motion_event 2");
4110         }
4111         if(rerender) {
4112 // Update faders
4113                 gui->update_patchbay();
4114         }
4115
4116
4117         if(update_clock) {
4118                 if(!mwindow->cwindow->playback_engine->is_playing_back)
4119                         gui->mainclock->update(position);
4120         }
4121
4122         if(update_zoom) {
4123                 gui->zoombar->update();
4124         }
4125
4126         if(update_scroll) {
4127                 if(!drag_scroll &&
4128                         (cursor_x >= get_w() || cursor_x < 0 || cursor_y >= get_h() || cursor_y < 0))
4129                         start_dragscroll();
4130                 else
4131                 if(drag_scroll &&
4132                         (cursor_x < get_w() && cursor_x >= 0 && cursor_y < get_h() && cursor_y >= 0))
4133                         stop_dragscroll();
4134         }
4135
4136         if(update_overlay) {
4137                 gui->draw_overlays(1);
4138         }
4139
4140 //printf("TrackCanvas::cursor_motion_event %d\n", __LINE__);
4141         return result;
4142 }
4143
4144 void TrackCanvas::start_dragscroll()
4145 {
4146         if(!drag_scroll) {
4147                 drag_scroll = 1;
4148                 set_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4149 //printf("TrackCanvas::start_dragscroll 1\n");
4150         }
4151 }
4152
4153 void TrackCanvas::stop_dragscroll()
4154 {
4155         if(drag_scroll) {
4156                 drag_scroll = 0;
4157                 unset_repeat(BC_WindowBase::get_resources()->scroll_repeat);
4158 //printf("TrackCanvas::stop_dragscroll 1\n");
4159         }
4160 }
4161
4162 int TrackCanvas::repeat_event(int64_t duration)
4163 {
4164         if(!drag_scroll) return 0;
4165         if(duration != BC_WindowBase::get_resources()->scroll_repeat) return 0;
4166
4167         int sample_movement = 0;
4168         int track_movement = 0;
4169         int64_t x_distance = 0;
4170         int64_t y_distance = 0;
4171         double position = 0;
4172         int result = 0;
4173
4174         switch(mwindow->session->current_operation) {
4175                 case SELECT_REGION:
4176 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
4177                 if(get_cursor_x() > get_w()) {
4178                                 x_distance = get_cursor_x() - get_w();
4179                                 sample_movement = 1;
4180                 }
4181                 else if(get_cursor_x() < 0) {
4182                         x_distance = get_cursor_x();
4183                         sample_movement = 1;
4184                 }
4185
4186                 if(get_cursor_y() > get_h()) {
4187                         y_distance = get_cursor_y() - get_h();
4188                         track_movement = 1;
4189                 }
4190                 else if(get_cursor_y() < 0) {
4191                         y_distance = get_cursor_y();
4192                         track_movement = 1;
4193                 }
4194                 result = 1;
4195                 break;
4196         }
4197
4198         if(sample_movement) {
4199                 position = (double)(get_cursor_x() +
4200                         mwindow->edl->local_session->view_start[pane->number] +
4201                         x_distance) *
4202                         mwindow->edl->local_session->zoom_sample /
4203                         mwindow->edl->session->sample_rate;
4204                 position = mwindow->edl->align_to_frame(position, 0);
4205                 position = MAX(position, 0);
4206
4207 //printf("TrackCanvas::repeat_event 1 %f\n", position);
4208                 switch(mwindow->session->current_operation) {
4209                 case SELECT_REGION:
4210                         if(position < selection_midpoint) {
4211                                 mwindow->edl->local_session->set_selectionend(selection_midpoint);
4212                                 mwindow->edl->local_session->set_selectionstart(position);
4213 // Que the CWindow
4214                                 gui->unlock_window();
4215                                 mwindow->cwindow->update(1, 0, 0);
4216                                 gui->lock_window("TrackCanvas::repeat_event");
4217 // Update the faders
4218                                 mwindow->update_plugin_guis();
4219                                 gui->update_patchbay();
4220                         }
4221                         else {
4222                                 mwindow->edl->local_session->set_selectionstart(selection_midpoint);
4223                                 mwindow->edl->local_session->set_selectionend(position);
4224 // Don't que the CWindow
4225                         }
4226                         break;
4227                 }
4228
4229                 mwindow->samplemovement(
4230                         mwindow->edl->local_session->view_start[pane->number] + x_distance,
4231                         pane->number);
4232         }
4233
4234         if(track_movement) {
4235                 mwindow->trackmovement(y_distance, pane->number);
4236         }
4237
4238         return result;
4239 }
4240
4241 int TrackCanvas::button_release_event()
4242 {
4243         int redraw = 0, update_overlay = 0, result = 0;
4244
4245 // printf("TrackCanvas::button_release_event %d\n",
4246 // mwindow->session->current_operation);
4247         if(active) {
4248                 switch(mwindow->session->current_operation) {
4249                 case DRAG_EDITHANDLE2:
4250                         mwindow->session->current_operation = NO_OPERATION;
4251                         drag_scroll = 0;
4252                         result = 1;
4253
4254                         end_edithandle_selection();
4255                         break;
4256
4257                 case DRAG_EDITHANDLE1:
4258                         mwindow->session->current_operation = NO_OPERATION;
4259                         drag_scroll = 0;
4260                         result = 1;
4261                         break;
4262
4263                 case DRAG_PLUGINHANDLE2:
4264                         mwindow->session->current_operation = NO_OPERATION;
4265                         drag_scroll = 0;
4266                         result = 1;
4267
4268                         end_pluginhandle_selection();
4269                         break;
4270
4271                 case DRAG_PLUGINHANDLE1:
4272                         mwindow->session->current_operation = NO_OPERATION;
4273                         drag_scroll = 0;
4274                         result = 1;
4275                         break;
4276
4277                 case DRAG_FADE:
4278                 case DRAG_SPEED:
4279 // delete the drag_auto_gang first and remove out of order keys
4280                         synchronize_autos(0, 0, 0, -1);
4281                 case DRAG_CZOOM:
4282                 case DRAG_PZOOM:
4283                 case DRAG_PLAY:
4284                 case DRAG_MUTE:
4285                 case DRAG_MASK:
4286                 case DRAG_MODE:
4287                 case DRAG_PAN:
4288                 case DRAG_CAMERA_X:
4289                 case DRAG_CAMERA_Y:
4290                 case DRAG_CAMERA_Z:
4291                 case DRAG_PROJECTOR_X:
4292                 case DRAG_PROJECTOR_Y:
4293                 case DRAG_PROJECTOR_Z:
4294                 case DRAG_PLUGINKEY:
4295                         mwindow->session->current_operation = NO_OPERATION;
4296                         mwindow->session->drag_handle = 0;
4297 // Remove any out-of-order keyframe
4298                         if(mwindow->session->drag_auto) {
4299                                 mwindow->session->drag_auto->autos->remove_nonsequential(
4300                                                 mwindow->session->drag_auto);
4301 //                              mwindow->session->drag_auto->autos->optimize();
4302                                 update_overlay = 1;
4303                         }
4304
4305
4306                         mwindow->undo->update_undo_after(_("keyframe"), LOAD_AUTOMATION);
4307                         result = 1;
4308                         break;
4309
4310                 case DRAG_EDIT:
4311                 case DRAG_AEFFECT_COPY:
4312                 case DRAG_VEFFECT_COPY:
4313 // Trap in drag stop
4314                         break;
4315
4316
4317                 default:
4318                         if(mwindow->session->current_operation) {
4319 //                              if(mwindow->session->current_operation == SELECT_REGION) {
4320 //                                      mwindow->undo->update_undo_after(_("select"), LOAD_SESSION, 0, 0);
4321 //                              }
4322
4323                                 mwindow->session->current_operation = NO_OPERATION;
4324                                 drag_scroll = 0;
4325 // Traps button release events
4326 //                              result = 1;
4327                         }
4328                         break;
4329                 }
4330         }
4331
4332         if (result)
4333                 cursor_motion_event();
4334
4335         if(update_overlay) {
4336                 gui->draw_overlays(1);
4337         }
4338         if(redraw) {
4339                 gui->draw_canvas(NORMAL_DRAW, 0);
4340         }
4341         return result;
4342 }
4343
4344 int TrackCanvas::do_edit_handles(int cursor_x, int cursor_y, int button_press,
4345         int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
4346 {
4347         Edit *edit_result = 0;
4348         int handle_result = -1;
4349         int result = 0;
4350
4351         if( !mwindow->edl->session->show_assets ) return 0;
4352
4353         for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
4354                 for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
4355                         int64_t edit_x, edit_y, edit_w, edit_h;
4356                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4357
4358                         if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
4359                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h ) {
4360                                 if( cursor_x < edit_x + HANDLE_W ) {
4361                                         edit_result = edit;
4362                                         handle_result = 0;
4363                                         if( cursor_y >= edit_y+edit_h - HANDLE_W ) {
4364                                                 new_cursor = DOWNLEFT_RESIZE;
4365                                                 if( button_press == LEFT_BUTTON )
4366                                                         result = -1;
4367                                         }
4368                                         else
4369                                                 result = 1;
4370                                 }
4371                                 else if( cursor_x >= edit_x + edit_w - HANDLE_W ) {
4372                                         edit_result = edit;
4373                                         handle_result = 1;
4374                                         if( cursor_y >= edit_y+edit_h - HANDLE_W ) {
4375                                                 new_cursor = DOWNRIGHT_RESIZE;
4376                                                 if( button_press == LEFT_BUTTON )
4377                                                         result = -1;
4378                                         }
4379                                         else
4380                                                 result = 1;
4381                                 }
4382                         }
4383                 }
4384         }
4385
4386         update_cursor = 1;
4387         if( result > 0 ) {
4388                 double position = 0;
4389                 if( handle_result == 0 ) {
4390                         position = edit_result->track->from_units(edit_result->startproject);
4391                         new_cursor = LEFT_CURSOR;
4392                 }
4393                 else if( handle_result == 1 ) {
4394                         position = edit_result->track->from_units(edit_result->startproject + edit_result->length);
4395                         new_cursor = RIGHT_CURSOR;
4396                 }
4397
4398 // Reposition cursor
4399                 if( button_press ) {
4400                         mwindow->session->drag_edit = edit_result;
4401                         mwindow->session->drag_handle = handle_result;
4402                         mwindow->session->drag_button = get_buttonpress() - 1;
4403                         mwindow->session->drag_position = position;
4404                         mwindow->session->current_operation = DRAG_EDITHANDLE1;
4405                         mwindow->session->drag_origin_x = get_cursor_x();
4406                         mwindow->session->drag_origin_y = get_cursor_y();
4407                         mwindow->session->drag_start = position;
4408
4409                         rerender = start_selection(position);
4410                         update_overlay = 1;
4411                 }
4412         }
4413         else if( result <  0) {
4414                 mwindow->undo->update_undo_before();
4415                 if( !shift_down() ) {
4416                         if( handle_result == 0 )
4417                                 edit_result->hard_left = !edit_result->hard_left;
4418                         else if( handle_result == 1 )
4419                                 edit_result->hard_right = !edit_result->hard_right;
4420                 }
4421                 else {
4422                         int status = handle_result == 0 ? edit_result->hard_left :
4423                                      handle_result == 1 ? edit_result->hard_right : 0;
4424                         int new_status = !status;
4425                         int64_t edit_edge = edit_result->startproject;
4426                         if( handle_result == 1 ) edit_edge += edit_result->length;
4427                         double edge_position = edit_result->track->from_units(edit_edge);
4428                         for( Track *track=mwindow->edl->tracks->first; track!=0; track=track->next ) {
4429                                 int64_t track_position = track->to_units(edge_position, 1);
4430                                 Edit *left_edit = track->edits->editof(track_position, PLAY_FORWARD, 0);
4431                                 if( left_edit ) {
4432                                         int64_t left_edge = left_edit->startproject;
4433                                         double left_position = track->from_units(left_edge);
4434                                         if( EQUIV(edge_position, left_position) ) {
4435                                                 left_edit->hard_left = new_status;
4436                                                 if( left_edit->previous )
4437                                                         left_edit->previous->hard_right = new_status;
4438                                         }
4439                                 }
4440                                 Edit *right_edit = track->edits->editof(track_position, PLAY_REVERSE, 0);
4441                                 if( right_edit ) {
4442                                         int64_t right_edge = right_edit->startproject + right_edit->length;
4443                                         double right_position = track->from_units(right_edge);
4444                                         if( EQUIV(edge_position, right_position) ) {
4445                                                 right_edit->hard_right = new_status;
4446                                                 if( right_edit->next )
4447                                                         right_edit->next->hard_left = new_status;
4448                                         }
4449                                 }
4450                         }
4451                 }
4452                 rerender = update_overlay = 1;
4453                 mwindow->undo->update_undo_after(_("hard_edge"), LOAD_EDITS);
4454                 result = 1;
4455         }
4456
4457         return result;
4458 }
4459
4460 int TrackCanvas::do_plugin_handles(int cursor_x,
4461         int cursor_y,
4462         int button_press,
4463         int &rerender,
4464         int &update_overlay,
4465         int &new_cursor,
4466         int &update_cursor)
4467 {
4468         Plugin *plugin_result = 0;
4469         int handle_result = 0;
4470         int result = 0;
4471
4472 //      if(!mwindow->edl->session->show_assets) return 0;
4473
4474         for(Track *track = mwindow->edl->tracks->first;
4475                 track && !result;
4476                 track = track->next) {
4477                 for(int i = 0; i < track->plugin_set.total && !result; i++) {
4478                         PluginSet *plugin_set = track->plugin_set.values[i];
4479                         for(Plugin *plugin = (Plugin*)plugin_set->first;
4480                                 plugin && !result;
4481                                 plugin = (Plugin*)plugin->next) {
4482                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
4483                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
4484
4485                                 if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
4486                                         cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h) {
4487                                         if(cursor_x < plugin_x + HANDLE_W) {
4488                                                 plugin_result = plugin;
4489                                                 handle_result = 0;
4490                                                 result = 1;
4491                                         }
4492                                         else if(cursor_x >= plugin_x + plugin_w - HANDLE_W) {
4493                                                 plugin_result = plugin;
4494                                                 handle_result = 1;
4495                                                 result = 1;
4496                                         }
4497                                 }
4498                         }
4499
4500                         if(result && shift_down())
4501                                 mwindow->session->trim_edits = plugin_set;
4502                 }
4503         }
4504
4505         update_cursor = 1;
4506         if(result) {
4507                 double position = 0;
4508                 if(handle_result == 0) {
4509                         position = plugin_result->track->from_units(plugin_result->startproject);
4510                         new_cursor = LEFT_CURSOR;
4511                 }
4512                 else if(handle_result == 1) {
4513                         position = plugin_result->track->from_units(plugin_result->startproject + plugin_result->length);
4514                         new_cursor = RIGHT_CURSOR;
4515                 }
4516
4517                 if(button_press) {
4518                         mwindow->session->drag_plugin = plugin_result;
4519                         mwindow->session->drag_handle = handle_result;
4520                         mwindow->session->drag_button = get_buttonpress() - 1;
4521                         mwindow->session->drag_position = position;
4522                         mwindow->session->current_operation = DRAG_PLUGINHANDLE1;
4523                         mwindow->session->drag_origin_x = get_cursor_x();
4524                         mwindow->session->drag_origin_y = get_cursor_y();
4525                         mwindow->session->drag_start = position;
4526
4527                         rerender = start_selection(position);
4528                         update_overlay = 1;
4529                 }
4530         }
4531
4532         return result;
4533 }
4534
4535
4536 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
4537 {
4538         int result = 0;
4539
4540 //      if(!mwindow->edl->session->show_assets) return 0;
4541
4542         for(Track *track = mwindow->edl->tracks->first;
4543                 track && !result;
4544                 track = track->next) {
4545                 int64_t track_x, track_y, track_w, track_h;
4546                 track_dimensions(track, track_x, track_y, track_w, track_h);
4547
4548                 if(button_press && get_buttonpress() == RIGHT_BUTTON &&
4549                         cursor_y >= track_y && cursor_y < track_y + track_h) {
4550                         gui->edit_menu->update(track, 0);
4551                         gui->edit_menu->activate_menu();
4552                         result = 1;
4553                 }
4554         }
4555
4556         return result;
4557 }
4558
4559 int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag_start,
4560         int &redraw, int &rerender, int &new_cursor, int &update_cursor)
4561 {
4562         int result = 0;
4563
4564         if(!mwindow->edl->session->show_assets) return 0;
4565
4566         for(Track *track = mwindow->edl->tracks->first; track && !result; track = track->next) {
4567
4568                 for(Edit *edit = track->edits->first; edit && !result; edit = edit->next) {
4569                         int64_t edit_x, edit_y, edit_w, edit_h;
4570                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
4571
4572 // Cursor inside a track
4573 // Cursor inside an edit
4574                         if(cursor_x >= edit_x && cursor_x < edit_x + edit_w &&
4575                                 cursor_y >= edit_y && cursor_y < edit_y + edit_h) {
4576 // Select duration of edit
4577                                 if(button_press) {
4578                                         if(get_double_click() && !drag_start) {
4579                                                 mwindow->edl->local_session->set_selectionstart(edit->track->from_units(edit->startproject));
4580                                                 mwindow->edl->local_session->set_selectionend(edit->track->from_units(edit->startproject) +
4581                                                         edit->track->from_units(edit->length));
4582                                                 if(mwindow->edl->session->cursor_on_frames)
4583                                                 {
4584                                                         mwindow->edl->local_session->set_selectionstart(
4585                                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
4586                                                         mwindow->edl->local_session->set_selectionend(
4587                                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
4588                                                 }
4589                                                 redraw = 1;
4590                                                 rerender = 1;
4591                                                 update_cursor = -1;
4592                                                 result = 1;
4593                                         }
4594                                 }
4595                                 else if(drag_start && track->record) {
4596                                         if(mwindow->edl->session->editing_mode == EDITING_ARROW) {
4597 // Need to create drag window
4598                                                 mwindow->session->current_operation = DRAG_EDIT;
4599                                                 mwindow->session->drag_edit = edit;
4600 //printf("TrackCanvas::do_edits 2\n");
4601
4602 // Drag only one edit if ctrl is initially down
4603                                                 if(ctrl_down()) {
4604                                                         mwindow->session->drag_edits->remove_all();
4605                                                         mwindow->session->drag_edits->append(edit);
4606                                                 }
4607                                                 else {
4608 // Construct list of all affected edits
4609                                                         mwindow->edl->tracks->get_affected_edits(
4610                                                                 mwindow->session->drag_edits,
4611                                                                 edit->track->from_units(edit->startproject),
4612                                                                 edit->track);
4613                                                 }
4614                                                 mwindow->session->drag_origin_x = cursor_x;
4615                                                 mwindow->session->drag_origin_y = cursor_y;
4616                                                 // Where the drag started, so we know relative position inside the edit later
4617                                                 mwindow->session->drag_position = (double)cursor_x *
4618                                                         mwindow->edl->local_session->zoom_sample /
4619                                                         mwindow->edl->session->sample_rate +
4620                                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4621                                                         mwindow->edl->local_session->zoom_sample /
4622                                                         mwindow->edl->session->sample_rate;
4623
4624                                                 int cx, cy;
4625                                                 get_abs_cursor(cx, cy);
4626                                                 gui->drag_popup = new BC_DragWindow(gui,
4627                                                         mwindow->theme->get_image("clip_icon"), cx, cy);
4628
4629                                                 result = 1;
4630                                         }
4631                                 }
4632                         }
4633                 }
4634         }
4635         return result;
4636 }
4637
4638
4639 int TrackCanvas::test_resources(int cursor_x, int cursor_y)
4640 {
4641         return 0;
4642 }
4643
4644 int TrackCanvas::do_plugins(int cursor_x, int cursor_y, int drag_start,
4645         int button_press, int &redraw, int &rerender)
4646 {
4647         Plugin *plugin = 0;
4648         int result = 0;
4649         int done = 0;
4650         int64_t x, y, w, h;
4651         Track *track = 0;
4652
4653
4654 //      if(!mwindow->edl->session->show_assets) return 0;
4655
4656
4657         for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
4658                 if(!track->expand_view) continue;
4659
4660                 for(int i = 0; i < track->plugin_set.total && !done; i++) {
4661                         // first check if plugins are visible at all
4662                         if (!track->expand_view)
4663                                 continue;
4664                         PluginSet *plugin_set = track->plugin_set.values[i];
4665                         for(plugin = (Plugin*)plugin_set->first;
4666                                 plugin && !done;
4667                                 plugin = (Plugin*)plugin->next) {
4668                                 plugin_dimensions(plugin, x, y, w, h);
4669                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
4670                                         MWindowGUI::visible(y, y + h, 0, get_h())) {
4671                                         if(cursor_x >= x && cursor_x < x + w &&
4672                                                 cursor_y >= y && cursor_y < y + h) {
4673                                                 done = 1;
4674                                                 break;
4675                                         }
4676                                 }
4677                         }
4678                 }
4679         }
4680
4681         if(plugin) {
4682 // Start plugin popup
4683                 if(button_press) {
4684                         if(get_buttonpress() == 3) {
4685                                 gui->plugin_menu->update(plugin);
4686                                 gui->plugin_menu->activate_menu();
4687                                 result = 1;
4688                         }
4689                         else if (get_double_click() && !drag_start) {
4690 // Select range of plugin on doubleclick over plugin
4691                                 mwindow->edl->local_session->set_selectionstart(plugin->track->from_units(plugin->startproject));
4692                                 mwindow->edl->local_session->set_selectionend(plugin->track->from_units(plugin->startproject) +
4693                                         plugin->track->from_units(plugin->length));
4694                                 if(mwindow->edl->session->cursor_on_frames) {
4695                                         mwindow->edl->local_session->set_selectionstart(
4696                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionstart(1), 0));
4697                                         mwindow->edl->local_session->set_selectionend(
4698                                                 mwindow->edl->align_to_frame(mwindow->edl->local_session->get_selectionend(1), 1));
4699                                 }
4700                                 rerender = 1;
4701                                 redraw = 1;
4702                                 result = 1;
4703                         }
4704                 }
4705                 else
4706 // Move plugin
4707                 if(drag_start && plugin->track->record) {
4708                         if(mwindow->edl->session->editing_mode == EDITING_ARROW) {
4709                                 if(plugin->track->data_type == TRACK_AUDIO)
4710                                         mwindow->session->current_operation = DRAG_AEFFECT_COPY;
4711                                 else if(plugin->track->data_type == TRACK_VIDEO)
4712                                         mwindow->session->current_operation = DRAG_VEFFECT_COPY;
4713
4714                                 mwindow->session->drag_plugin = plugin;
4715                                 mwindow->session->drag_origin_x = cursor_x;
4716                                 mwindow->session->drag_origin_y = cursor_y;
4717                                 // Where the drag started, so we know relative position inside the edit later
4718                                 mwindow->session->drag_position =
4719                                         (double)(cursor_x + mwindow->edl->local_session->view_start[pane->number]) *
4720                                         mwindow->edl->local_session->zoom_sample / mwindow->edl->session->sample_rate;
4721 // Create picon
4722                                 switch(plugin->plugin_type) {
4723                                 case PLUGIN_STANDALONE: {
4724                                         PluginServer *server =
4725                                                 mwindow->scan_plugindb(plugin->title, plugin->track->data_type);
4726                                         if( !server ) break;
4727                                         VFrame *frame = server->picon;
4728                                         if(!frame) {
4729                                                 if(plugin->track->data_type == TRACK_AUDIO) {
4730                                                         frame = mwindow->theme->get_image("aeffect_icon");
4731                                                 }
4732                                                 else {
4733                                                         frame = mwindow->theme->get_image("veffect_icon");
4734                                                 }
4735                                         }
4736                                         int cx, cy;
4737                                         get_abs_cursor(cx, cy);
4738                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
4739                                                 break; }
4740
4741                                 case PLUGIN_SHAREDPLUGIN:
4742                                 case PLUGIN_SHAREDMODULE: {
4743                                         VFrame *frame = mwindow->theme->get_image("clip_icon");
4744                                         int cx, cy;
4745                                         get_abs_cursor(cx, cy);
4746                                         gui->drag_popup = new BC_DragWindow(gui, frame, cx, cy);
4747                                         break; }
4748                                 }
4749
4750                                 result = 1;
4751                         }
4752                 }
4753         }
4754
4755         return result;
4756 }
4757
4758 int TrackCanvas::do_transitions(int cursor_x, int cursor_y,
4759         int button_press, int &new_cursor, int &update_cursor)
4760 {
4761         Transition *transition = 0;
4762         int result = 0;
4763         int64_t x, y, w, h;
4764
4765         if(/* !mwindow->edl->session->show_assets || */
4766                 !mwindow->edl->session->auto_conf->transitions) return 0;
4767
4768         for( Track *track = mwindow->edl->tracks->first; track && !result; track = track->next ) {
4769
4770                 for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
4771                         if( edit->transition ) {
4772                                 edit_dimensions(edit, x, y, w, h);
4773                                 get_transition_coords(x, y, w, h);
4774
4775                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
4776                                         MWindowGUI::visible(y, y + h, 0, get_h()) ) {
4777                                         if( cursor_x >= x && cursor_x < x + w &&
4778                                                 cursor_y >= y && cursor_y < y + h ) {
4779                                                 transition = edit->transition;
4780                                                 result = 1;
4781                                                 break;
4782                                         }
4783                                 }
4784                         }
4785                 }
4786         }
4787
4788         update_cursor = 1;
4789         if(transition) {
4790                 if(!button_press) {
4791                         new_cursor = UPRIGHT_ARROW_CURSOR;
4792                 }
4793                 else if(get_buttonpress() == 3) {
4794                         gui->transition_menu->update(transition);
4795                         gui->transition_menu->activate_menu();
4796                 }
4797         }
4798
4799         return result;
4800 }
4801
4802 int TrackCanvas::button_press_event()
4803 {
4804         int result = 0;
4805         int cursor_x, cursor_y;
4806         int new_cursor;
4807
4808         cursor_x = get_cursor_x();
4809         cursor_y = get_cursor_y();
4810         mwindow->session->trim_edits = 0;
4811
4812         if(is_event_win() && cursor_inside()) {
4813 //              double position = (double)cursor_x *
4814 //                      mwindow->edl->local_session->zoom_sample /
4815 //                      mwindow->edl->session->sample_rate +
4816 //                      (double)mwindow->edl->local_session->view_start[pane->number] *
4817 //                      mwindow->edl->local_session->zoom_sample /
4818 //                      mwindow->edl->session->sample_rate;
4819
4820                 result = 1;
4821                 if(!active) {
4822                         activate();
4823                 }
4824
4825                 if( get_buttonpress() == LEFT_BUTTON ) {
4826                         gui->stop_transport("TrackCanvas::button_press_event");
4827                 }
4828
4829                 int update_overlay = 0, update_cursor = 0, rerender = 0;
4830
4831                 if(get_buttonpress() == WHEEL_UP) {
4832                         if(shift_down())
4833                                 mwindow->expand_sample();
4834                         else if(ctrl_down())
4835                                 mwindow->move_left(get_w()/ 10);
4836                         else
4837                                 mwindow->move_up(get_h() / 10);
4838                 }
4839                 else if(get_buttonpress() == WHEEL_DOWN) {
4840                         if(shift_down())
4841                                 mwindow->zoom_in_sample();
4842                         else if(ctrl_down())
4843                                 mwindow->move_right(get_w() / 10);
4844                         else
4845                                 mwindow->move_down(get_h() / 10);
4846                 }
4847                 else if(get_buttonpress() == 6) {
4848                         if(ctrl_down())
4849                                 mwindow->move_left(get_w());
4850                         else if(alt_down())
4851                                 mwindow->move_left(get_w() / 20);
4852                         else
4853                                 mwindow->move_left(get_w() / 5);
4854                 }
4855                 else if(get_buttonpress() == 7) {
4856                         if(ctrl_down())
4857                                 mwindow->move_right(get_w());
4858                         else if(alt_down())
4859                                 mwindow->move_right(get_w() / 20);
4860                         else
4861                                 mwindow->move_right(get_w() / 5);
4862                 }
4863                 else {
4864                         switch(mwindow->edl->session->editing_mode) {
4865 // Test handles and resource boundaries and highlight a track
4866                         case EDITING_ARROW: {
4867                                 if( do_transitions(cursor_x, cursor_y,
4868                                                 1, new_cursor, update_cursor) ) break;
4869
4870                                 if( do_keyframes(cursor_x, cursor_y,
4871                                         0, get_buttonpress(), new_cursor,
4872                                         update_cursor, rerender) ) break;
4873 // Test edit boundaries
4874                                 if( do_edit_handles(cursor_x, cursor_y,
4875                                         1, rerender, update_overlay, new_cursor,
4876                                         update_cursor) ) break;
4877 // Test plugin boundaries
4878                                 if( do_plugin_handles(cursor_x, cursor_y,
4879                                         1, rerender, update_overlay, new_cursor,
4880                                         update_cursor) ) break;
4881
4882                                 if( do_edits(cursor_x, cursor_y, 1, 0,
4883                                         update_cursor, rerender, new_cursor,
4884                                         update_cursor) ) break;
4885
4886                                 if( do_plugins(cursor_x, cursor_y, 0, 1,
4887                                         update_cursor, rerender) ) break;
4888
4889                                 if( test_resources(cursor_x, cursor_y) ) break;
4890
4891                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
4892
4893                                 result = 0;
4894                                 break; }
4895
4896 // Test handles only and select a region
4897                         case EDITING_IBEAM: {
4898                                 double position = (double)cursor_x *
4899                                         mwindow->edl->local_session->zoom_sample /
4900                                         mwindow->edl->session->sample_rate +
4901                                         (double)mwindow->edl->local_session->view_start[pane->number] *
4902                                         mwindow->edl->local_session->zoom_sample /
4903                                         mwindow->edl->session->sample_rate;
4904 //printf("TrackCanvas::button_press_event %d\n", position);
4905
4906                                 if( do_transitions(cursor_x, cursor_y,
4907                                                 1, new_cursor, update_cursor)) break;
4908                                 if(do_keyframes(cursor_x, cursor_y,
4909                                         0, get_buttonpress(), new_cursor,
4910                                         update_cursor, rerender)) {
4911                                         update_overlay = 1;
4912                                         break;
4913                                 }
4914 // Test edit boundaries
4915                                 if( do_edit_handles(cursor_x, cursor_y,
4916                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
4917 // Test plugin boundaries
4918                                 if( do_plugin_handles(cursor_x, cursor_y,
4919                                         1, rerender, update_overlay, new_cursor, update_cursor) ) break;
4920
4921                                 if( do_edits(cursor_x, cursor_y,
4922                                         1, 0, update_cursor, rerender, new_cursor, update_cursor) ) break;
4923
4924                                 if( do_plugins(cursor_x, cursor_y, 0, 1, update_cursor, rerender) ) break;
4925
4926                                 if( do_tracks(cursor_x, cursor_y, 1) ) break;
4927 // Highlight selection
4928                                 if( get_buttonpress() != LEFT_BUTTON ) break;
4929                                 rerender = start_selection(position);
4930                                 mwindow->session->current_operation = SELECT_REGION;
4931                                 update_cursor = 1;
4932                                 break; }
4933                         }
4934                 }
4935
4936                 if( rerender ) {
4937                         gui->unlock_window();
4938                         mwindow->cwindow->update(1, 0, 0, 0, 1);
4939                         gui->lock_window("TrackCanvas::button_press_event 2");
4940 // Update faders
4941                         mwindow->update_plugin_guis();
4942                         gui->update_patchbay();
4943                 }
4944
4945                 if( update_overlay ) {
4946                         gui->draw_overlays(1);
4947                 }
4948                 if( update_cursor < 0 ) {
4949 // double_click edit
4950                         gui->swindow->update_selection();
4951                 }
4952                 if( update_cursor ) {
4953                         gui->update_timebar(0);
4954                         gui->hide_cursor(0);
4955                         gui->show_cursor(1);
4956                         gui->zoombar->update();
4957                         gui->flash_canvas(1);
4958                 }
4959         }
4960
4961         return result;
4962 }
4963
4964 int TrackCanvas::start_selection(double position)
4965 {
4966         int rerender = 0;
4967         position = mwindow->edl->align_to_frame(position, 1);
4968
4969
4970 // Extend a border
4971         if(shift_down())
4972         {
4973                 double midpoint = (mwindow->edl->local_session->get_selectionstart(1) +
4974                         mwindow->edl->local_session->get_selectionend(1)) / 2;
4975
4976                 if(position < midpoint)
4977                 {
4978                         mwindow->edl->local_session->set_selectionstart(position);
4979                         selection_midpoint = mwindow->edl->local_session->get_selectionend(1);
4980 // Que the CWindow
4981                         rerender = 1;
4982                 }
4983                 else
4984                 {
4985                         mwindow->edl->local_session->set_selectionend(position);
4986                         selection_midpoint = mwindow->edl->local_session->get_selectionstart(1);
4987 // Don't que the CWindow for the end
4988                 }
4989         }
4990         else
4991 // Start a new selection
4992         {
4993 //printf("TrackCanvas::start_selection %f\n", position);
4994                 mwindow->edl->local_session->set_selectionstart(position);
4995                 mwindow->edl->local_session->set_selectionend(position);
4996                 selection_midpoint = position;
4997 // Que the CWindow
4998                 rerender = 1;
4999         }
5000
5001         return rerender;
5002 }
5003
5004 void TrackCanvas::end_edithandle_selection()
5005 {
5006         mwindow->modify_edithandles();
5007 }
5008
5009 void TrackCanvas::end_pluginhandle_selection()
5010 {
5011         mwindow->modify_pluginhandles();
5012 }
5013
5014
5015 double TrackCanvas::time_visible()
5016 {
5017         return (double)get_w() *
5018                 mwindow->edl->local_session->zoom_sample /
5019                 mwindow->edl->session->sample_rate;
5020 }
5021
5022
5023 void TrackCanvas::show_message(Auto *current, int show_curve_type, const char *fmt, ...)
5024 {
5025         char string[BCTEXTLEN];
5026         char *cp = string, *ep = cp + sizeof(string)-1;
5027         if( show_curve_type ) {
5028                 cp += snprintf(string, ep-cp, "%-8s ",
5029                         FloatAuto::curve_name(((FloatAuto*)current)->curve_mode));
5030         }
5031         char string2[BCTEXTLEN];
5032         Units::totext(string2,
5033                 current->autos->track->from_units(current->position),
5034                 mwindow->edl->session->time_format,
5035                 mwindow->edl->session->sample_rate,
5036                 mwindow->edl->session->frame_rate,
5037                 mwindow->edl->session->frames_per_foot);
5038         cp += snprintf(cp, ep-cp, "%s", string2);
5039         va_list ap;
5040         va_start(ap, fmt);
5041         vsnprintf(cp, ep-cp, fmt, ap);
5042         va_end(ap);
5043         gui->show_message(string);
5044 }
5045
5046 // Patchbay* TrackCanvas::get_patchbay()
5047 // {
5048 //      if(pane->patchbay) return pane->patchbay;
5049 //      if(gui->total_panes() == 2 &&
5050 //              gui->pane[TOP_LEFT_PANE] &&
5051 //              gui->pane[TOP_RIGHT_PANE])
5052 //              return gui->pane[TOP_LEFT_PANE]->patchbay;
5053 //      if(gui->total_panes() == 4)
5054 //      {
5055 //              if(pane->number == TOP_RIGHT_PANE)
5056 //                      return gui->pane[TOP_LEFT_PANE]->patchbay;
5057 //              else
5058 //                      return gui->pane[BOTTOM_LEFT_PANE]->patchbay;
5059 //      }
5060 //
5061 //      return 0;
5062 // }
5063
5064