cinelerra-5.1/cinelerra/trackcanvas.C

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