group selection rework, rm inv title clr, add titlebar alpha textbox, default proxy...
[goodguy/cinelerra.git] / 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 "cache.h"
31 #include "canvas.h"
32 #include "cplayback.h"
33 #include "cursors.h"
34 #include "cwindowgui.h"
35 #include "cwindow.h"
36 #include "edithandles.h"
37 #include "editpopup.h"
38 #include "edits.h"
39 #include "edl.h"
40 #include "edlsession.h"
41 #include "floatauto.h"
42 #include "floatautos.h"
43 #include "gwindowgui.h"
44 #include "indexstate.h"
45 #include "intauto.h"
46 #include "intautos.h"
47 #include "keyframe.h"
48 #include "keyframepopup.h"
49 #include "keyframes.h"
50 #include "keys.h"
51 #include "labels.h"
52 #include "localsession.h"
53 #include "mainclock.h"
54 #include "maincursor.h"
55 #include "mainsession.h"
56 #include "mainundo.h"
57 #include "maskautos.h"
58 #include "mbuttons.h"
59 #include "mtimebar.h"
60 #include "mwindowgui.h"
61 #include "mwindow.h"
62 #include "panautos.h"
63 #include "patchbay.h"
64 #include "playbackengine.h"
65 #include "playtransport.h"
66 #include "plugin.h"
67 #include "pluginpopup.h"
68 #include "pluginserver.h"
69 #include "pluginset.h"
70 #include "plugintoggles.h"
71 #include "preferences.h"
72 #include "renderengine.h"
73 #include "resourcepixmap.h"
74 #include "resourcethread.h"
75 #include "swindow.h"
76 #include "theme.h"
77 #include "trackcanvas.h"
78 #include "tracking.h"
79 #include "trackpopup.h"
80 #include "tracks.h"
81 #include "transition.h"
82 #include "transitionhandles.h"
83 #include "transitionpopup.h"
84 #include "transportque.h"
85 #include "vframe.h"
86 #include "vpatchgui.inc"
87 #include "vrender.h"
88 #include "zoombar.h"
89
90 #include <string.h>
91
92 //#define PIXMAP_AGE -5
93 #define PIXMAP_AGE -32
94
95 TrackCanvas::TrackCanvas(MWindow *mwindow,
96         TimelinePane *pane,
97         int x,
98         int y,
99         int w,
100         int h)
101  : BC_SubWindow(x,
102         y,
103         w,
104         h)
105 {
106         this->mwindow = mwindow;
107         this->gui = mwindow->gui;
108         this->pane = pane;
109
110         selection_midpoint = 0;
111         drag_scroll = 0;
112         active = 0;
113         temp_picon = 0;
114         resource_timer = new Timer;
115         render_timer = new Timer;
116         hourglass_enabled = 0;
117         timebar_position = -1;
118         snapped = 0;
119 }
120
121 TrackCanvas::~TrackCanvas()
122 {
123 //      delete transition_handles;
124         delete edit_handles;
125         delete keyframe_pixmap;
126         delete camerakeyframe_pixmap;
127         delete modekeyframe_pixmap;
128         delete pankeyframe_pixmap;
129         delete projectorkeyframe_pixmap;
130         delete maskkeyframe_pixmap;
131         delete background_pixmap;
132         if(temp_picon) delete temp_picon;
133         delete render_timer;
134         delete resource_timer;
135 }
136
137 void TrackCanvas::create_objects()
138 {
139         background_pixmap = new BC_Pixmap(this, get_w(), get_h());
140 //      transition_handles = new TransitionHandles(mwindow, this);
141         edit_handles = new EditHandles(mwindow, this);
142         keyframe_pixmap = new BC_Pixmap(this, mwindow->theme->keyframe_data, PIXMAP_ALPHA);
143         camerakeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->camerakeyframe_data, PIXMAP_ALPHA);
144         modekeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->modekeyframe_data, PIXMAP_ALPHA);
145         pankeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->pankeyframe_data, PIXMAP_ALPHA);
146         projectorkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->projectorkeyframe_data, PIXMAP_ALPHA);
147         maskkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->maskkeyframe_data, PIXMAP_ALPHA);
148         draw(NORMAL_DRAW, 1);
149         update_cursor(0);
150         flash(0);
151 }
152
153 void TrackCanvas::resize_event()
154 {
155 //printf("TrackCanvas::resize_event 1\n");
156         draw(NORMAL_DRAW, 0);
157         flash(0);
158 //printf("TrackCanvas::resize_event 2\n");
159 }
160
161 int TrackCanvas::keypress_event()
162 {
163         return 0;
164 }
165
166 int TrackCanvas::cursor_leave_event()
167 {
168 // Because drag motion calls get_cursor_over_window we can be sure that
169 // all highlights get deleted now.
170 // This ended up blocking keyboard input from the drag operations.
171         if( timebar_position >= 0 )
172         {
173                 timebar_position = -1;
174                 if( pane->timebar )
175                         pane->timebar->update(1);
176         }
177
178         return 0;
179 //      return drag_motion();
180 }
181
182 int TrackCanvas::drag_motion_event()
183 {
184         return gui->drag_motion();
185 }
186
187 int TrackCanvas::drag_motion(
188                 Track **over_track, Edit **over_edit,
189                 PluginSet **over_pluginset, Plugin **over_plugin)
190 {
191         int cursor_x = get_relative_cursor_x();
192         int cursor_y = get_relative_cursor_y();
193         if( get_cursor_over_window() ) {
194                 drag_cursor_motion(cursor_x, cursor_y,
195                         over_track, over_edit, over_pluginset, over_plugin);
196         }
197         if( over_track && !*over_track )
198                 *over_track = pane->over_patchbay();
199         return 0;
200 }
201
202 int TrackCanvas::drag_cursor_motion(int cursor_x, int cursor_y,
203                 Track **over_track, Edit **over_edit,
204                 PluginSet **over_pluginset, Plugin **over_plugin)
205 {
206         if( cursor_x >= 0 && cursor_y >= 0 &&
207             cursor_x < get_w() && cursor_y < get_h() )
208         {
209 //printf("TrackCanvas::drag_motion %d %d\n", __LINE__, pane->number);
210 // Find the edit and track the cursor is over
211                 for(Track *track = mwindow->edl->tracks->first; track; track = track->next)
212                 {
213                         int64_t track_x, track_y, track_w, track_h;
214                         track_dimensions(track, track_x, track_y, track_w, track_h);
215
216                         if(cursor_y >= track_y &&
217                                 cursor_y < track_y + track_h)
218                         {
219                                 *over_track = track;
220                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
221                                 {
222                                         int64_t edit_x, edit_y, edit_w, edit_h;
223                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
224                                         if( cursor_y < edit_y || cursor_y >= edit_y + edit_h ) continue;
225                                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w ) {
226                                                 *over_edit = edit;
227                                                 break;
228                                         }
229                                         if( edit != track->edits->last ) continue;
230                                         if( mwindow->session->current_operation != DRAG_ATRANSITION &&
231                                             mwindow->session->current_operation != DRAG_VTRANSITION ) continue;
232                                         if( !edit->silence() ) {
233                                                 // add silence to allow drag transition past last edit
234                                                 //  will be deleted by Edits::optimize if not used
235                                                 double length = mwindow->edl->session->default_transition_length;
236                                                 int64_t start = edit->startproject+edit->length;
237                                                 int64_t units = track->to_units(length, 1);
238                                                 track->edits->create_silence(start, start+units);
239                                                 continue;
240                                         }
241                                         if( cursor_x >= edit_x ) { *over_edit = edit; break; }
242                                 }
243
244                                 for(int i = 0; i < track->plugin_set.total; i++)
245                                 {
246                                         PluginSet *pluginset = track->plugin_set.values[i];
247                                         for(Plugin *plugin = (Plugin*)pluginset->first;
248                                                 plugin;
249                                                 plugin = (Plugin*)plugin->next)
250                                         {
251                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
252                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
253
254                                                 if(cursor_y >= plugin_y &&
255                                                         cursor_y < plugin_y + plugin_h)
256                                                 {
257                                                         *over_pluginset = plugin->plugin_set;
258
259                                                         if(cursor_x >= plugin_x &&
260                                                                 cursor_x < plugin_x + plugin_w)
261                                                         {
262                                                                 *over_plugin = plugin;
263                                                                 break;
264                                                         }
265                                                 }
266                                         }
267                                 }
268                                 break;
269                         }
270                 }
271         }
272
273         return 0;
274 }
275
276
277 int TrackCanvas::drag_stop_event()
278 {
279         int result = gui->drag_stop();
280         if( !result && mwindow->session->current_operation ) {
281                 mwindow->session->current_operation = NO_OPERATION;
282                 drag_scroll = 0;
283         }
284         return result;
285 }
286
287 int TrackCanvas::drag_stop(int *redraw)
288 {
289         int result = 0;
290         int insertion  = 0;
291         int over_window = 0;
292         int cursor_x = -1, cursor_y = -1;
293
294         if( get_cursor_over_window() ) {
295                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
296                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
297                         over_window = 1;
298                 else {
299                         Track *track = pane->over_patchbay();
300                         if( track && mwindow->session->track_highlighted == track )
301                                 over_window = 1;
302                 }
303         }
304
305         if( over_window ) {
306                 switch(mwindow->session->current_operation) {
307                 case DRAG_VTRANSITION:
308                 case DRAG_ATRANSITION:
309                         if(mwindow->session->edit_highlighted) {
310                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
311                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
312                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
313                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
314                                         mwindow->session->current_operation = NO_OPERATION;
315                                         mwindow->paste_transition();
316                                         result = 1;
317                                 }
318                         }
319                         *redraw = 1;
320                         break;
321
322 // Behavior for dragged plugins is limited by the fact that a shared plugin
323 // can only refer to a standalone plugin that exists in the same position in
324 // time.  Dragging a plugin from one point in time to another can't produce
325 // a shared plugin to the original plugin.  In this case we relocate the
326 // plugin instead of sharing it.
327                 case DRAG_AEFFECT_COPY:
328                 case DRAG_VEFFECT_COPY:
329                         if( mwindow->session->track_highlighted &&
330                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
331                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
332                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
333                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
334                                 mwindow->session->current_operation = NO_OPERATION;
335
336                                 int64_t drop_position = -1;
337                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
338                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
339                                 Track *hi_track = mwindow->session->track_highlighted;
340
341 // Insert shared plugin in source
342 // Move source to different location
343                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
344 //printf("TrackCanvas::drag_stop 6\n");
345                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
346                                         if( drop_position < 0 ) {
347                                                 result = 1;
348                                                 break;          // Do not do anything
349                                         }
350
351                                         Track *track = mwindow->session->track_highlighted;
352                                         drop_position = track->frame_align(drop_position, 0);
353                                         mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
354                                         result = 1;
355                                 }
356                                 else if( hi_track ) {
357 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
358                                         Edit *hi_edit = mwindow->session->edit_highlighted;
359                                         drop_position = hi_edit ? hi_edit->startproject : 0;
360                                         if( drop_position < 0 ) {
361                                                 result = 1;
362                                                 break;          // Do not do anything
363                                         }
364
365                                         Track *track = mwindow->session->track_highlighted;
366                                         drop_position = track->frame_align(drop_position, 0);
367                                         mwindow->move_effect(drag_plugin, hi_track, drop_position);
368                                         result = 1;
369                                 }
370                         }
371                         break;
372
373                 case DRAG_AEFFECT:
374                 case DRAG_VEFFECT:
375                         if( mwindow->session->track_highlighted &&
376                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
377                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
378                              (mwindow->session->current_operation == DRAG_VEFFECT &&
379                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
380 // Drop all the effects
381                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
382                                 Track *track = mwindow->session->track_highlighted;
383                                 double start = 0;
384                                 double length = track->get_length();
385
386                                 if(mwindow->session->plugin_highlighted) {
387                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
388                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
389                                         if(length <= 0) length = track->get_length();
390                                 }
391                                 else if(mwindow->session->pluginset_highlighted) {
392                                                 start = track->from_units(plugin_set->length());
393                                         length = track->get_length() - start;
394                                         if(length <= 0) length = track->get_length();
395                                 }
396                                 else if(mwindow->edl->local_session->get_selectionend() >
397                                         mwindow->edl->local_session->get_selectionstart()) {
398                                         start = mwindow->edl->local_session->get_selectionstart();
399                                         length = mwindow->edl->local_session->get_selectionend() -
400                                                 mwindow->edl->local_session->get_selectionstart();
401                                 }
402 // Move to a point between two edits
403                                 else if(mwindow->session->edit_highlighted) {
404                                         start = mwindow->session->track_highlighted->from_units(
405                                                 mwindow->session->edit_highlighted->startproject);
406                                         length = mwindow->session->track_highlighted->from_units(
407                                                 mwindow->session->edit_highlighted->length);
408                                 }
409                                 start = mwindow->edl->align_to_frame(start, 0);
410                                 mwindow->insert_effects_canvas(start, length);
411                                 *redraw = 1;
412                         }
413                         if( mwindow->session->track_highlighted )
414                                 result = 1;  // we have to cleanup
415                         break;
416
417                 case DRAG_ASSET:
418                         if(mwindow->session->track_highlighted) {
419                                 double asset_duration = 0;
420                                 int64_t asset_length_units = 0;
421
422                                 if(mwindow->session->current_operation == DRAG_ASSET &&
423                                         mwindow->session->drag_assets->total) {
424                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
425                                         // we use video if we are over video and audio if we are over audio
426                                         if( indexable->have_video() &&
427                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
428                                                 // Images have length -1
429                                                 int64_t video_length = indexable->get_video_frames();
430                                                 if (video_length < 0) {
431                                                         if(mwindow->edl->session->si_useduration)
432                                                                 video_length = mwindow->edl->session->si_duration;
433                                                         else
434                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ;
435                                                 }
436                                                 asset_duration = video_length / indexable->get_frame_rate();
437                                         }
438                                         else if( indexable->have_audio() &&
439                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
440                                                 int64_t audio_length = indexable->get_audio_samples();
441                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
442                                         }
443                                         else {
444                                                 result = 1;
445                                                 break;  // Do not do anything
446                                         }
447                                 }
448                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
449                                          mwindow->session->drag_clips->total ) {
450                                         EDL *clip = mwindow->session->drag_clips->values[0];
451                                         asset_duration = clip->tracks->total_length();
452                                 }
453                                 else {
454                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
455                                 }
456
457                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
458                                 int64_t drop_position = drop_edit_position (&insertion, NULL, asset_length_units);
459                                 if( drop_position < 0 ) {
460                                         result = 1;
461                                         break;          // Do not do anything
462                                 }
463
464                                 Track *track = mwindow->session->track_highlighted;
465                                 double track_position = track->from_units(drop_position);
466                                 track_position = mwindow->edl->align_to_frame(track_position, 0);
467
468 //                              if (!insertion) {
469 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
470 //                                      // Unfortunately, this is _a lot_ of work to do right
471 //                                      printf("Problematic insertion\n");
472 //                                      mwindow->edl->tracks->clear(track_position,
473 //                                              track_position + asset_duration, 0);
474 //                              }
475                                 mwindow->paste_assets(track_position, track, !insertion);
476                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
477                         }
478                         break;
479
480                 case DRAG_EDIT:
481                         mwindow->session->current_operation = NO_OPERATION;
482                         if(mwindow->session->track_highlighted) {
483                                 if( mwindow->session->track_highlighted->data_type ==
484                                         mwindow->session->drag_edit->track->data_type) {
485                                         int64_t drop_position = drop_edit_position(&insertion,
486                                                         mwindow->session->drag_edit,
487                                                         mwindow->session->drag_edit->length);
488                                         if( drop_position < 0 ) {
489                                                 result = 1;
490                                                 break;          // Do not do anything
491                                         }
492                                         Track *track = mwindow->session->track_highlighted;
493                                         double track_position = track->from_units(drop_position);
494                                         track_position = mwindow->edl->align_to_frame(track_position, 0);
495                                         mwindow->move_edits(mwindow->session->drag_edits,
496                                                         track, track_position, !insertion);
497                                 }
498
499                                 result = 1;
500                         }
501                         break;
502                 case DRAG_GROUP:
503                         mwindow->session->current_operation = NO_OPERATION;
504                         EDL *drag_group = mwindow->session->drag_group;
505                         if( drag_group ) {
506                                 Track *drop_track = mwindow->session->track_highlighted;
507                                 Track *drag_track = mwindow->session->drag_group_first_track;
508                                 Edit *drag_edit = mwindow->session->drag_group_edit;
509                                 Track *edit_track = drag_edit ? drag_edit->track : 0;
510                                 while( drop_track && edit_track ) {
511                                         if( edit_track == drag_track ) break;
512                                         edit_track = edit_track->previous;
513                                         drop_track = drop_track->previous;
514                                 }
515                                 if( drop_track ) {
516                                         double cur_pos = mwindow->session->drag_group_position;
517                                         double new_pos = mwindow->edl->get_cursor_position(cursor_x, pane->number);
518                                         new_pos -= mwindow->session->drag_position - cur_pos;
519                                         new_pos = mwindow->edl->align_to_frame(new_pos, 0);
520                                         double drop_position = new_pos;
521                                         int ret = test_track_group(drag_group, drop_track, new_pos);
522                                         if( !ret && new_pos != drop_position ) {
523                                                 ret = test_track_group(drag_group, drop_track, new_pos);
524                                         }
525                                         if( ret )
526                                                 mwindow->move_group(drag_group, drop_track, new_pos, 1);
527                                         drag_group->remove_user();
528                                         mwindow->session->drag_group = 0;
529                                         mwindow->edl->tracks->clear_selected_edits();
530                                 }
531                         }
532                         result = 1;
533                         break;
534                 }
535         }
536
537         return result;
538 }
539
540 int TrackCanvas::drag_start_event()
541 {
542         int result = 0;
543         int redraw = 0;
544         int rerender = 0;
545         int new_cursor, update_cursor;
546
547         if( mwindow->session->current_operation == DRAG_BUTTON_DOWN )
548                 mwindow->session->current_operation = NO_OPERATION;
549         else if( mwindow->session->current_operation != NO_OPERATION )
550                 return 0;
551
552         if(is_event_win()) {
553                 if(do_plugins(get_drag_x(), get_drag_y(),
554                                 1, 0, redraw, rerender)) {
555                         result = 1;
556                 }
557                 else if(do_edits(get_drag_x(), get_drag_y(),
558                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
559                         result = 1;
560                 }
561         }
562
563         return result;
564 }
565
566 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
567 {
568         // get the canvas/track position
569         Track *track = mwindow->session->track_highlighted;
570         int cursor_x = get_relative_cursor_x();
571         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
572         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
573         double position = mwindow->edl->align_to_frame(cur_pos, 1);
574         if( position <= 0 ) {
575                 *is_insertion = 1;
576                 return 0;
577         }
578         double cursor_position = position;
579         int64_t drop_position = track->to_units(cursor_position, 1);
580         if( moved_edit ) { // relative cursor position depends upon drop point
581                 double moved_edit_start = moved_edit->track->from_units(moved_edit->startproject);
582                 position -= mwindow->session->drag_position - moved_edit_start;
583         }
584         int64_t edit_position = track->to_units(position, 1);
585         int64_t grab_position = edit_position;
586         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
587                 grab_position -= moved_edit_length / 2;
588         Edit *last_edit = track->edits->last;
589         if( !last_edit || edit_position >= (last_edit->startproject+last_edit->length) ) {
590                 *is_insertion = 0;
591                 return edit_position;
592         }
593
594         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
595         Edit *next_edit = track->edits->first;
596         while( next_edit ) {
597                 Edit *edit = next_edit;  next_edit = (Edit *)edit->next;
598                 int64_t edit_start = edit->startproject;
599                 int64_t edit_end = edit_start + edit->length;
600                 double edit_start_pos = edit->track->from_units(edit_start);
601                 if( (fabs(edit_start_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
602                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
603                         return edit_start;
604                 }
605                 double edit_end_pos = edit->track->from_units(edit_end);
606                 if( (fabs(edit_end_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
607                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
608                         return edit_end;
609                 }
610                 if( edit != moved_edit && !edit->silence() )
611                         drop_start = edit_end; // reset drop zone
612                 if( next_edit ) {
613                         if( next_edit == moved_edit || next_edit->silence() ) continue;
614                         drop_end = edit_end;
615                 }
616                 else
617                         drop_end = INT64_MAX;
618                 if( edit_position >= drop_start &&
619                     edit_position+moved_edit_length < drop_end ) {
620                         *is_insertion = 0; // fits in the zone
621                         return edit_position;
622                 }
623                 if( drop_position < drop_end ) { // drop in the zone
624                         if( (drop_end - drop_start) >= moved_edit_length ) {
625                                 *is_insertion = 0; // fits in the zone, but over the edge
626                                 int64_t dx0 = llabs(drop_position - drop_start);
627                                 int64_t dx1 = llabs(drop_position - drop_end);
628                                 return dx0 < dx1 ? drop_start : drop_end - moved_edit_length;
629                         }
630                         *is_insertion = 1;
631                         int64_t edit_center = (edit_start + edit_end) / 2;
632                         return position < edit_center ? drop_start : drop_end;
633                 }
634         }
635
636         *is_insertion = 0;
637         return -1;
638 }
639
640 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
641 {
642         // get the canvas/track position
643         Track *track = plugin_set->track;
644         double moved_plugin_length = moved_plugin->track->from_units(moved_plugin->length);
645         int64_t track_plugin_length = track->to_units(moved_plugin_length, 0);
646         int cursor_x = get_relative_cursor_x();
647         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
648         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
649         double position = mwindow->edl->align_to_frame(cur_pos, 1);
650         if( position <= 0 ) return 0;
651         int64_t drop_position = track->to_units(position, 1);
652         Plugin *last_plugin = (Plugin *)plugin_set->last;
653         if( !last_plugin ) return drop_position;
654         double plugin_set_end = last_plugin->track->from_units(last_plugin->startproject+last_plugin->length);
655         if( position >= plugin_set_end ) return drop_position;
656         double moved_plugin_start = moved_plugin->track->from_units(moved_plugin->startproject);
657         position -= mwindow->session->drag_position - moved_plugin_start;
658         int64_t plugin_position = track->to_units(position, 1);
659
660         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
661         Plugin *next_plugin = (Plugin *)plugin_set->first;
662         while( next_plugin ) {
663                 Plugin *plugin = next_plugin;  next_plugin = (Plugin *)plugin->next;
664                 int64_t plugin_start = plugin->startproject;
665                 int64_t plugin_end = plugin_start + plugin->length;
666                 double plugin_end_pos = plugin->track->from_units(plugin_end);
667                 int64_t track_plugin_end = track->to_units(plugin_end_pos, 0);
668                 if( plugin != moved_plugin && !plugin->silence() )
669                         drop_start = track_plugin_end;
670                 if( next_plugin ) {
671                         if( next_plugin == moved_plugin || next_plugin->silence() ) continue;
672                         drop_end = track_plugin_end;
673                 }
674                 else
675                         drop_end = INT64_MAX;
676                 if( plugin_position >= drop_start && // fits in the zone
677                     plugin_position+track_plugin_length < drop_end ) {
678                         return plugin_position;
679                 }
680                 if( drop_position < drop_end ) { // drop in the zone
681                         if( (drop_end - drop_start) >= track_plugin_length ) {
682                                 int64_t dx0 = llabs(drop_position - drop_start);
683                                 int64_t dx1 = llabs(drop_position - drop_end);
684                                 return dx0 < dx1 ? drop_start : drop_end - track_plugin_length;
685                         }
686                 }
687         }
688
689         return -1;
690 }
691
692 void TrackCanvas::draw(int mode, int hide_cursor)
693 {
694         const int debug = 0;
695
696 // Swap pixmap layers
697         if(get_w() != background_pixmap->get_w() ||
698                 get_h() != background_pixmap->get_h())
699         {
700                 delete background_pixmap;
701                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
702         }
703
704 // Cursor disappears after resize when this is called.
705 // Cursor doesn't redraw after editing when this isn't called.
706         if(pane->cursor && hide_cursor) pane->cursor->hide();
707         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
708
709         if(debug) PRINT_TRACE
710         draw_resources(mode);
711
712         if(debug) PRINT_TRACE
713         draw_overlays();
714         if(debug) PRINT_TRACE
715 }
716
717 void TrackCanvas::update_cursor(int flush)
718 {
719         switch(mwindow->edl->session->editing_mode)
720         {
721                 case EDITING_ARROW: set_cursor(ARROW_CURSOR, 0, flush); break;
722                 case EDITING_IBEAM: set_cursor(IBEAM_CURSOR, 0, flush); break;
723         }
724 }
725
726
727 void TrackCanvas::test_timer()
728 {
729         if(resource_timer->get_difference() > 1000 &&
730                 !hourglass_enabled)
731         {
732                 start_hourglass();
733                 hourglass_enabled = 1;
734         }
735 }
736
737
738 void TrackCanvas::draw_indexes(Indexable *indexable)
739 {
740         IndexState *index_state = indexable->index_state;
741 // Don't redraw raw samples
742         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
743                 return;
744         draw_resources(NORMAL_DRAW, 1, indexable);
745         draw_overlays();
746         flash(0);
747 }
748
749 void TrackCanvas::draw_resources(int mode,
750         int indexes_only,
751         Indexable *indexable)
752 {
753         const int debug = 0;
754
755         if(debug) PRINT_TRACE
756
757 // can't stop thread here, because this is called for every pane
758 //      if(mode != IGNORE_THREAD && !indexes_only)
759 //              gui->resource_thread->stop_draw(!indexes_only);
760
761         if(mode != IGNORE_THREAD &&
762                 !indexes_only &&
763                 !gui->resource_thread->interrupted)
764         {
765                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
766                         __LINE__);
767
768                 BC_Signals::dump_stack();
769         }
770
771         if(debug) PRINT_TRACE
772
773         resource_timer->update();
774
775 // Age resource pixmaps for deletion
776         if(!indexes_only)
777                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
778                         gui->resource_pixmaps.values[i]->visible--;
779
780         if(mode == FORCE_REDRAW)
781                 gui->resource_pixmaps.remove_all_objects();
782
783         if(debug) PRINT_TRACE
784
785 // Search every edit
786         for(Track *current = mwindow->edl->tracks->first;
787                 current;
788                 current = NEXT)
789         {
790                 if(debug) PRINT_TRACE
791                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
792                 {
793                         if(debug) PRINT_TRACE
794                         if( current->data_type != TRACK_SUBTITLE )
795                                 if(!edit->asset && !edit->nested_edl) continue;
796                         if(indexes_only)
797                         {
798                                 if(edit->track->data_type != TRACK_AUDIO) continue;
799
800                                 if(edit->nested_edl &&
801                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
802
803                                 if(edit->asset &&
804                                         strcmp(indexable->path, edit->asset->path)) continue;
805                         }
806
807                         if(debug) PRINT_TRACE
808
809                         int64_t edit_x, edit_y, edit_w, edit_h;
810                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
811
812 // Edit is visible
813                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
814                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
815                         {
816                                 int64_t pixmap_x, pixmap_w, pixmap_h;
817                                 if(debug) PRINT_TRACE
818
819 // Search for existing pixmap containing edit
820                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
821                                 {
822                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
823 // Same pointer can be different edit if editing took place
824                                         if(pixmap->edit_id == edit->id &&
825                                                 pixmap->pane_number == pane->number)
826                                         {
827                                                 pixmap->visible = 1;
828                                                 break;
829                                         }
830                                 }
831                                 if(debug) PRINT_TRACE
832
833 // Get new size, offset of pixmap needed
834                                 get_pixmap_size(edit,
835                                         edit_x,
836                                         edit_w,
837                                         pixmap_x,
838                                         pixmap_w,
839                                         pixmap_h);
840                                 if(debug) PRINT_TRACE
841
842 // Draw new data
843                                 if(pixmap_w && pixmap_h)
844                                 {
845 // Create pixmap if it doesn't exist
846                                         ResourcePixmap* pixmap = create_pixmap(edit, edit_x,
847                                                 pixmap_x, pixmap_w, pixmap_h);
848 // Resize it if it's bigger
849                                         if( pixmap_w > pixmap->pixmap_w ||
850                                             pixmap_h > pixmap->pixmap_h)
851                                                 pixmap->resize(pixmap_w, pixmap_h);
852                                         pixmap->update_settings(edit, edit_x, edit_w,
853                                                 pixmap_x, pixmap_w, pixmap_h);
854 // Draw data
855                                         if( current->show_assets() )
856                                                 pixmap->draw_data(this,
857                                                         edit, edit_x, edit_w,
858                                                         pixmap_x, pixmap_w, pixmap_h,
859                                                         mode, indexes_only);
860                                         else {
861                                                 set_bg_color(BLACK);
862                                                 clear_box(0,0, pixmap_w,pixmap_h, pixmap);
863                                         }
864 // Draw title
865                                         if( current->show_titles() )
866                                                 pixmap->draw_title(this,
867                                                         edit, edit_x, edit_w,
868                                                         pixmap_x, pixmap_w);
869 // Resize it if it's smaller
870                                         if(pixmap_w < pixmap->pixmap_w ||
871                                                 pixmap_h < pixmap->pixmap_h)
872                                                 pixmap->resize(pixmap_w, pixmap_h);
873
874 // Copy pixmap to background canvas
875                                         background_pixmap->draw_pixmap(pixmap,
876                                                 pixmap->pixmap_x,
877                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
878                                                 pixmap->pixmap_w,
879                                                 edit_h);
880                                 }
881                                 if(debug) PRINT_TRACE
882
883                         }
884                 }
885         }
886
887
888 // Delete unused pixmaps
889         if(debug) PRINT_TRACE
890         if(!indexes_only)
891                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
892                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
893                         {
894 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
895                                 delete gui->resource_pixmaps.values[i];
896                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
897                         }
898         if(debug) PRINT_TRACE
899
900         if(hourglass_enabled)
901         {
902                 stop_hourglass();
903                 hourglass_enabled = 0;
904         }
905         if(debug) PRINT_TRACE
906
907 // can't stop thread here, because this is called for every pane
908 //      if(mode != IGNORE_THREAD && !indexes_only)
909 //              gui->resource_thread->start_draw();
910         if(debug) PRINT_TRACE
911
912
913 }
914
915 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
916         int64_t edit_x,
917         int64_t pixmap_x,
918         int64_t pixmap_w,
919         int64_t pixmap_h)
920 {
921         ResourcePixmap *result = 0;
922
923         for(int i = 0; i < gui->resource_pixmaps.total; i++)
924         {
925 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
926                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
927                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
928                 {
929                         result = gui->resource_pixmaps.values[i];
930                         break;
931                 }
932         }
933
934         if(!result)
935         {
936 //SET_TRACE
937                 result = new ResourcePixmap(mwindow,
938                         gui,
939                         edit,
940                         pane->number,
941                         pixmap_w,
942                         pixmap_h);
943 //SET_TRACE
944                 gui->resource_pixmaps.append(result);
945         }
946
947 //      result->resize(pixmap_w, pixmap_h);
948         return result;
949 }
950
951 void TrackCanvas::get_pixmap_size(Edit *edit,
952         int64_t edit_x,
953         int64_t edit_w,
954         int64_t &pixmap_x,
955         int64_t &pixmap_w,
956         int64_t &pixmap_h)
957 {
958
959 // Align x on frame boundaries
960
961
962 //      switch(edit->edits->track->data_type)
963 //      {
964 //              case TRACK_AUDIO:
965
966                         pixmap_x = edit_x;
967                         pixmap_w = edit_w;
968                         if(pixmap_x < 0)
969                         {
970                                 pixmap_w -= -edit_x;
971                                 pixmap_x = 0;
972                         }
973
974                         if(pixmap_x + pixmap_w > get_w())
975                         {
976                                 pixmap_w = get_w() - pixmap_x;
977                         }
978
979 //                      break;
980 //
981 //              case TRACK_VIDEO:
982 //              {
983 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
984 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
985 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
986 //                      int64_t pixmap_x1 = edit_x;
987 //                      int64_t pixmap_x2 = edit_x + edit_w;
988 //
989 //                      if(pixmap_x1 < 0)
990 //                      {
991 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
992 //                                      pixel_increment +
993 //                                      edit_x;
994 //                      }
995 //
996 //                      if(pixmap_x2 > get_w())
997 //                      {
998 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
999 //                                      pixel_increment +
1000 //                                      edit_x;
1001 //                      }
1002 //                      pixmap_x = pixmap_x1;
1003 //                      pixmap_w = pixmap_x2 - pixmap_x1;
1004 //                      break;
1005 //              }
1006 //      }
1007
1008         pixmap_h = mwindow->edl->local_session->zoom_track;
1009         Track *track = edit->edits->track;
1010         if( track->show_titles() )
1011                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
1012 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
1013 }
1014
1015 void TrackCanvas::edit_dimensions(Edit *edit,
1016         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1017 {
1018         x = Units::round(edit->track->from_units(edit->startproject) *
1019                         mwindow->edl->session->sample_rate /
1020                         mwindow->edl->local_session->zoom_sample -
1021                         mwindow->edl->local_session->view_start[pane->number]);
1022
1023         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1024
1025 // Method for calculating w so when edits are together we never get off by one error due to rounding
1026         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
1027                         mwindow->edl->session->sample_rate /
1028                         mwindow->edl->local_session->zoom_sample -
1029                         mwindow->edl->local_session->view_start[pane->number]);
1030         w = x_next - x;
1031
1032         int edit_h = 0;
1033         if( edit->track->show_titles() )
1034                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
1035         if( edit->track->show_assets() )
1036                 edit_h += resource_h();
1037         h = edit_h;
1038 }
1039
1040 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1041 {
1042         x = 0;
1043         w = get_w();
1044         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1045         h = track->vertical_span(mwindow->theme);
1046 }
1047
1048
1049 void TrackCanvas::draw_paste_destination()
1050 {
1051         //int cursor_x = get_relative_cursor_x();
1052         //int cursor_y = get_relative_cursor_y();
1053         int current_atrack = 0;
1054         int current_vtrack = 0;
1055         int current_aedit = 0;
1056         int current_vedit = 0;
1057         int64_t w = 0;
1058         int64_t x;
1059         double position;
1060         int insertion  = 0;
1061
1062 //if(pane->number == BOTTOM_RIGHT_PANE)
1063 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1064
1065         if((mwindow->session->current_operation == DRAG_ASSET &&
1066                         (mwindow->session->drag_assets->total ||
1067                         mwindow->session->drag_clips->total)) ||
1068                 (mwindow->session->current_operation == DRAG_EDIT &&
1069                         mwindow->session->drag_edits->total)) {
1070                 Indexable *indexable = 0;
1071                 EDL *clip = 0;
1072                 //int draw_box = 0;
1073
1074                 if(mwindow->session->current_operation == DRAG_ASSET &&
1075                         mwindow->session->drag_assets->size())
1076                         indexable = mwindow->session->drag_assets->get(0);
1077
1078                 if(mwindow->session->current_operation == DRAG_ASSET &&
1079                         mwindow->session->drag_clips->size())
1080                         clip = mwindow->session->drag_clips->get(0);
1081
1082                 int has_audio = 0, has_video = 0;
1083                 double paste_audio_length = 0, paste_video_length = 0;
1084                 double paste_audio_position = -1, paste_video_position = -1;
1085
1086                 if( indexable ) {
1087                         has_audio = indexable->have_audio();
1088                         paste_audio_length = !has_audio ? 0 :
1089                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1090                         has_video = indexable->have_video();
1091                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1092                         // Images have length -1
1093                         if( asset && asset->video_data && asset->video_length < 0 ) {
1094                                 paste_video_length = mwindow->edl->session->si_useduration ?
1095                                         mwindow->edl->session->si_duration / asset->frame_rate :
1096                                         1.0 / asset->frame_rate ;  // 1 frame
1097                         }
1098                         else
1099                                 paste_video_length = !has_video ? 0 :
1100                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1101                 }
1102
1103                 if( clip ) {
1104                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1105                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1106                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1107                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1108                 }
1109
1110 // 'Align cursor on frame' lengths calculations
1111                 if( mwindow->edl->session->cursor_on_frames ) {
1112                         double fps = mwindow->edl->session->frame_rate;
1113                         double aud = floor(paste_audio_length * fps) / fps;
1114                         double vid = floor(paste_video_length * fps) / fps;
1115                         double length = has_video && has_audio ?
1116                                         aud < vid ? aud : vid :
1117                                 has_video ? vid :
1118                                 has_audio ? aud : 0;
1119                         paste_video_length = paste_audio_length = length;
1120                 }
1121
1122                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1123                         int64_t length = 0;
1124                         switch( mwindow->session->track_highlighted->data_type ) {
1125                         case TRACK_VIDEO: length = paste_video_length;  break;
1126                         case TRACK_AUDIO: length = paste_audio_length;  break;
1127                         }
1128                         int64_t asset_length = mwindow->session->track_highlighted->
1129                                 to_units(length, 1);
1130                         paste_audio_position = mwindow->session->track_highlighted->
1131                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1132                 }
1133                 if( has_video ) {
1134                         int64_t asset_length = mwindow->session->track_highlighted->
1135                                 to_units(paste_video_length, 1);
1136                         paste_video_position = mwindow->session->track_highlighted->
1137                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1138                 }
1139
1140 // Get destination track
1141                 for(Track *dest = mwindow->session->track_highlighted;
1142                         dest;
1143                         dest = dest->next) {
1144                         if(dest->record) {
1145 // Get source width in pixels
1146                                 w = -1;
1147 // Use start of highlighted edit
1148                                 if(mwindow->session->edit_highlighted) {
1149                                         position = mwindow->session->track_highlighted->from_units(
1150                                                 mwindow->session->edit_highlighted->startproject);
1151                                 }
1152                                 else {
1153 // Use end of highlighted track, disregarding effects
1154                                         position = mwindow->session->track_highlighted->from_units(
1155                                                 mwindow->session->track_highlighted->edits->length());
1156                                 }
1157
1158 // Get the x coordinate
1159                                 x = Units::to_int64(position *
1160                                         mwindow->edl->session->sample_rate /
1161                                         mwindow->edl->local_session->zoom_sample) -
1162                                         mwindow->edl->local_session->view_start[pane->number];
1163
1164                                 double paste_position = -1.;
1165                                 if(dest->data_type == TRACK_AUDIO) {
1166                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1167 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1168                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1169                                                         indexable->get_sample_rate() *
1170                                                         mwindow->edl->session->sample_rate /
1171                                                         mwindow->edl->local_session->zoom_sample);
1172                                                 paste_position = paste_audio_position;
1173                                         }
1174                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1175                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1176                                                         mwindow->edl->session->sample_rate /
1177                                                         mwindow->edl->local_session->zoom_sample);
1178                                                 paste_position = paste_audio_position;
1179 //printf("draw_paste_destination %d\n", x);
1180                                         }
1181                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1182                                                 current_aedit < mwindow->session->drag_edits->total) {
1183                                                 Edit *edit;
1184                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1185                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1186                                                         current_aedit++;
1187
1188                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1189                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1190                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1191                                                         paste_position = mwindow->session->track_highlighted->
1192                                                                 from_units(drop_edit_position(&insertion,
1193                                                                         mwindow->session->drag_edit,
1194                                                                         mwindow->session->drag_edit->length));
1195                                                         current_aedit++;
1196                                                 }
1197                                         }
1198                                         if( paste_position >= 0 ) {
1199                                                 position = paste_position;
1200                                                 current_atrack++;
1201                                                 //draw_box = 1;
1202                                         }
1203                                         else
1204                                                 w = -1;
1205                                 }
1206                                 else if(dest->data_type == TRACK_VIDEO) {
1207 //printf("draw_paste_destination 1\n");
1208                                         if(indexable && current_vtrack < indexable->get_video_layers())
1209                                         {
1210                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1211                                                         indexable->get_frame_rate() *
1212                                                         mwindow->edl->session->sample_rate /
1213                                                         mwindow->edl->local_session->zoom_sample);
1214                                                 paste_position = paste_video_position;
1215                                         }
1216                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1217                                                 w = Units::to_int64(clip->tracks->total_length() *
1218                                                         mwindow->edl->session->sample_rate /
1219                                                         mwindow->edl->local_session->zoom_sample);
1220                                                 paste_position = paste_video_position;
1221                                         }
1222                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1223                                                 current_vedit < mwindow->session->drag_edits->total) {
1224                                                 Edit *edit;
1225                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1226                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1227                                                         current_vedit++;
1228
1229                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1230                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1231                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1232                                                                 mwindow->edl->session->sample_rate /
1233                                                                 mwindow->edl->local_session->zoom_sample);
1234                                                         paste_position = mwindow->session->track_highlighted->
1235                                                                 from_units(drop_edit_position(&insertion,
1236                                                                         mwindow->session->drag_edit,
1237                                                                         mwindow->session->drag_edit->length));
1238                                                         current_vedit++;
1239                                                 }
1240                                         }
1241                                         if( paste_position >= 0 ) {
1242                                                 position = paste_position;
1243                                                 current_vtrack++;
1244                                                 //draw_box = 1;
1245                                         }
1246                                         else
1247                                                 w = -1;
1248                                 }
1249
1250                                 if(w >= 0) {
1251 // Get the x coordinate
1252                                         x = Units::to_int64(position *
1253                                                 mwindow->edl->session->sample_rate /
1254                                                 mwindow->edl->local_session->zoom_sample) -
1255                                                 mwindow->edl->local_session->view_start[pane->number];
1256                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1257                                         int h = dest->vertical_span(mwindow->theme);
1258
1259 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1260                                         if(x < -BC_INFINITY) {
1261                                                 w -= -BC_INFINITY - x;
1262                                                 x += -BC_INFINITY - x;
1263                                         }
1264                                         w = MIN(65535, w);
1265 // if(pane->number == TOP_RIGHT_PANE)
1266 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1267 // __LINE__, x, y, w, h);
1268                                         if (insertion)
1269                                                 draw_highlight_insertion(x, y, w, h);
1270                                         else
1271                                                 draw_highlight_rectangle(x, y, w, h);
1272                                 }
1273                         }
1274                 }
1275         }
1276 }
1277
1278 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1279 {
1280         x = Units::round(plugin->track->from_units(plugin->startproject) *
1281                 mwindow->edl->session->sample_rate /
1282                 mwindow->edl->local_session->zoom_sample -
1283                 mwindow->edl->local_session->view_start[pane->number]);
1284         w = Units::round(plugin->track->from_units(plugin->length) *
1285                 mwindow->edl->session->sample_rate /
1286                 mwindow->edl->local_session->zoom_sample);
1287         y = plugin->track->y_pixel
1288                 - mwindow->edl->local_session->track_start[pane->number];
1289         if( plugin->track->show_titles() )
1290                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1291         if( plugin->track->show_assets() )
1292                 y += resource_h();
1293         y += plugin->plugin_set->get_number() *
1294                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1295         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1296 }
1297
1298 int TrackCanvas::resource_h()
1299 {
1300         return mwindow->edl->local_session->zoom_track;
1301 }
1302
1303 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1304 {
1305
1306 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1307 // just draw arrows, so user has indication that something is there
1308 // FIXME: get better colors
1309
1310         if (x + w <= 0)
1311         {
1312                 draw_triangle_left(0, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1313                 return;
1314         } else
1315         if (x >= get_w())
1316         {
1317                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1318                 return;
1319         }
1320
1321 // Fix bug in heroines & cvs version as of 22.8.2005:
1322 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1323         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1324         if(x < -10)
1325         {
1326                 w += x - -10;
1327                 x = -10;
1328         }
1329
1330         if(y < -10)
1331         {
1332                 h += y - -10;
1333                 y = -10;
1334         }
1335
1336         w = MIN(w, get_w() + 20);
1337         h = MIN(h, get_h() + 20);
1338         if(w > 0 && h > 0)
1339         {
1340                 set_color(mwindow->preferences->highlight_inverse);
1341                 set_inverse();
1342                 //draw_rectangle(x, y, w, h);
1343                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1344                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1345                 set_opaque();
1346                 draw_rectangle(x, y, w, h);
1347         }
1348 //if(pane->number == TOP_RIGHT_PANE)
1349 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1350 }
1351
1352 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1353 {
1354
1355 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1356 // just draw arrows, so user has indication that something is there
1357 // FIXME: get better colors
1358
1359
1360
1361         int h1 = h / 8;
1362         int h2 = h / 4;
1363
1364         set_inverse();
1365
1366 /* these don't look so good
1367
1368         draw_line(x, y, x, y+h);
1369         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1370         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1371         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1372         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1373 */
1374         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1375         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1376
1377 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1378         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1379         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1380         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1381 */
1382         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1383         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1384
1385 // draw the box centred around x
1386         x -= w / 2;
1387 // Fix bug in heroines & cvs version as of 22.8.2005:
1388 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1389         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1390         if(x < -10)
1391         {
1392                 w += x - -10;
1393                 x = -10;
1394         }
1395         if(y < -10)
1396         {
1397                 h += y - -10;
1398                 y = -10;
1399         }
1400         w = MIN(w, get_w() + 20);
1401         h = MIN(h, get_h() + 20);
1402         set_color(mwindow->preferences->highlight_inverse);
1403         set_inverse();
1404         draw_rectangle(x, y, w, h);
1405         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1406         set_opaque();
1407 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1408 }
1409
1410 void TrackCanvas::draw_playback_cursor()
1411 {
1412 // Called before playback_cursor exists
1413 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1414 //      {
1415 //              mwindow->playback_cursor->visible = 0;
1416 //              mwindow->playback_cursor->draw();
1417 //      }
1418 }
1419
1420 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1421 {
1422         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1423         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1424
1425         edit_dimensions(edit, x, y, w, h);
1426
1427         if( edit->track->show_titles() )
1428                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1429
1430         if(side == EDIT_OUT)
1431                 x += w - handle_w;
1432
1433         h = handle_h;
1434         w = handle_w;
1435 }
1436
1437 void TrackCanvas::get_transition_coords(Edit *edit,
1438                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1439 {
1440         int transition_w = 30, transition_h = 30;
1441         int has_titles = edit->track->show_titles();
1442         int has_assets = edit->track->show_assets();
1443         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1444         double asset_h = resource_h();
1445         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
1446         double dy = has_titles ?
1447                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2 ) :
1448                 ( has_assets ? asset_h/2 : 0) ;
1449         double title_h = mwindow->theme->title_h;
1450         if( dy < title_h / 2 ) { ys = title_h;  dy = ys / 2; }
1451         y += dy;
1452
1453         x -= transition_w / 2;
1454         y -= transition_h / 2;
1455         w = transition_w;
1456         h = transition_h;
1457 }
1458
1459 void TrackCanvas::draw_highlighting()
1460 {
1461         int64_t x, y, w, h;
1462         int draw_box = 0;
1463
1464         switch(mwindow->session->current_operation)
1465         {
1466                 case DRAG_ATRANSITION:
1467                 case DRAG_VTRANSITION:
1468 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1469 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1470                         if(mwindow->session->edit_highlighted) {
1471                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1472                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1473                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1474                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1475                                         edit_dimensions(mwindow->session->edit_highlighted,
1476                                                 x, y, w, h);
1477                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1478                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1479                                                 draw_box = 1;
1480                                                 get_transition_coords(mwindow->session->edit_highlighted,
1481                                                         x, y, w, h);
1482                                         }
1483                                 }
1484                         }
1485                         break;
1486
1487 // Dragging a new effect from the Resource window
1488                 case DRAG_AEFFECT:
1489                 case DRAG_VEFFECT:
1490                         if(mwindow->session->track_highlighted &&
1491                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1492                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1493                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1494                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1495 // Put it before another plugin
1496                                 if(mwindow->session->plugin_highlighted) {
1497                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1498                                                 x, y, w, h);
1499 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1500                                 }
1501 // Put it after a plugin set
1502                                 else if( mwindow->session->pluginset_highlighted &&
1503                                          mwindow->session->pluginset_highlighted->last ) {
1504                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1505                                                 x, y, w, h);
1506 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1507                                         int64_t track_x, track_y, track_w, track_h;
1508                                         track_dimensions(mwindow->session->track_highlighted,
1509                                                 track_x, track_y, track_w, track_h);
1510
1511                                         x += w;
1512                                         w = Units::round(
1513                                                         mwindow->session->track_highlighted->get_length() *
1514                                                         mwindow->edl->session->sample_rate /
1515                                                         mwindow->edl->local_session->zoom_sample -
1516                                                         mwindow->edl->local_session->view_start[pane->number]) -
1517                                                 x;
1518 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1519                                         if(w <= 0) w = track_w;
1520                                 }
1521                                 else {
1522                                         track_dimensions(mwindow->session->track_highlighted,
1523                                                 x, y, w, h);
1524
1525 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1526 // Put it in a new plugin set determined by the selected range
1527                                         if(mwindow->edl->local_session->get_selectionend() >
1528                                                 mwindow->edl->local_session->get_selectionstart()) {
1529                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1530                                                         mwindow->edl->session->sample_rate /
1531                                                         mwindow->edl->local_session->zoom_sample -
1532                                                         mwindow->edl->local_session->view_start[pane->number]);
1533                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1534                                                         mwindow->edl->local_session->get_selectionstart()) *
1535                                                         mwindow->edl->session->sample_rate /
1536                                                         mwindow->edl->local_session->zoom_sample);
1537                                         }
1538 // Put it in a new plugin set determined by an edit boundary
1539                                         else if(mwindow->session->edit_highlighted) {
1540                                                 int64_t temp_y, temp_h;
1541                                                 edit_dimensions(mwindow->session->edit_highlighted,
1542                                                         x, temp_y, w, temp_h);
1543                                         }
1544 // Put it at the beginning of the track in a new plugin set
1545                                 }
1546
1547                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1548                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1549 //printf("TrackCanvas::draw_highlighting 1\n");
1550                                         draw_box = 1;
1551                                 }
1552                         }
1553                         break;
1554
1555                 case DRAG_ASSET:
1556                         if(mwindow->session->track_highlighted) {
1557 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1558
1559 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1560 //                              {
1561                                         draw_paste_destination();
1562 //                              }
1563                         }
1564                         break;
1565
1566                 case DRAG_EDIT:
1567                         if(mwindow->session->track_highlighted) {
1568 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1569 //
1570 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1571                                         draw_paste_destination();
1572 //                              }
1573                         }
1574                         break;
1575                 case DRAG_GROUP:
1576                         if( mwindow->session->track_highlighted && mwindow->session->drag_group &&
1577                             mwindow->session->drag_group_edit && mwindow->session->drag_group_first_track ) {
1578                                 Track *track = mwindow->session->track_highlighted;
1579                                 EDL *drag_group = mwindow->session->drag_group;
1580                                 Track *edit_track = mwindow->session->drag_group_edit->track;
1581                                 Track *drag_track = mwindow->session->drag_group_first_track;
1582                                 while( track && edit_track && edit_track != drag_track ) {
1583                                         edit_track = edit_track->previous;
1584                                         track = track->previous;
1585                                 }
1586                                 int cx = get_cursor_x();
1587                                 double cur_pos = mwindow->session->drag_group_position;
1588                                 double new_pos = mwindow->edl->get_cursor_position(cx, pane->number);
1589                                 new_pos -= mwindow->session->drag_position - cur_pos;
1590                                 new_pos = mwindow->edl->align_to_frame(new_pos, 0);
1591                                 double drop_position = new_pos;
1592                                 int color = GREEN;
1593                                 int ret = test_track_group(drag_group, track, new_pos);
1594                                 if( !ret && new_pos != drop_position ) {
1595                                         double pos = new_pos;
1596                                         pos += mwindow->session->drag_position - cur_pos;
1597                                         cx = mwindow->edl->get_position_cursorx(pos, pane->number);
1598                                         ret = test_track_group(drag_group, track, new_pos);
1599                                         color = ret ? YELLOW : RED;
1600                                 }
1601                                 else if( !ret )
1602                                         color = RED;
1603                                 track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1604                                 int dx = cx - mwindow->session->drag_origin_x;
1605                                 int dy = y - mwindow->session->drag_origin_y;
1606                                 draw_selected_edits(mwindow->edl, dx, dy, color, -1);
1607                         }
1608                         break;
1609 // Dragging an effect from the timeline
1610                 case DRAG_AEFFECT_COPY:
1611                 case DRAG_VEFFECT_COPY:
1612                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1613                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1614                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1615                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1616                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1617
1618                                 int64_t plugin_position = -1;
1619                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1620                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1621                                 Track *hi_track = mwindow->session->track_highlighted;
1622                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1623 // Put it into a silence zone
1624                                 if( hi_plugin_set && hi_plugin_set->last &&
1625                                     hi_plugin_set->track == drag_plugin->track ) {
1626                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1627                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1628                                         hi_track = drag_plugin->track;
1629                                 }
1630                                 else if( hi_track ) {
1631 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1632                                         track_dimensions(hi_track, x, y, w, h);
1633                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1634                                 }
1635
1636                                 if( plugin_position < 0 ) break;
1637
1638 // Calculate length of plugin based on data type of track and units
1639                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1640                                                 mwindow->edl->local_session->zoom_sample;
1641                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1642                                                 mwindow->edl->local_session->view_start[pane->number];
1643                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1644
1645                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1646                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1647                                         draw_box = 1;
1648                                 }
1649                         }
1650                         break;
1651
1652                 case DRAG_PLUGINKEY:
1653                         if(mwindow->session->plugin_highlighted &&
1654                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1655                         {
1656 // Just highlight the plugin
1657                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1658
1659                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1660                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1661                                 {
1662                                         draw_box = 1;
1663                                 }
1664                         }
1665                         break;
1666
1667         }
1668
1669         if( draw_box )
1670                 draw_highlight_rectangle(x, y, w, h);
1671
1672         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1673 }
1674
1675 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1676 {
1677         for( Track *track=edl->tracks->first; track; track=track->next ) {
1678                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1679                         if( !edit->is_selected ) continue;
1680                         int64_t x, y, w, h;
1681                         edit_dimensions(edit, x, y, w, h);
1682                         x += dx;  y += dy;
1683                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1684                         if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1685                         set_opaque();
1686                         int inner = color1 < 0 ? color0 : !edit->group_id ? color0 :
1687                                 mwindow->get_group_color(edit->group_id);
1688                         set_color(inner);
1689                         draw_rectangle(x, y, w, h);
1690                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1691                         set_color(outer);
1692                         draw_rectangle(x-1, y-1, w+2, h+2);
1693                         draw_rectangle(x-2, y-2, w+1, h+1);
1694                 }
1695         }
1696 }
1697
1698 void TrackCanvas::draw_plugins()
1699 {
1700         char string[BCTEXTLEN];
1701         int current_on = 0;
1702         int current_show = 0;
1703         int current_preset = 0;
1704
1705         for(int i = 0; i < plugin_on_toggles.total; i++)
1706                 plugin_on_toggles.values[i]->in_use = 0;
1707         for(int i = 0; i < plugin_show_toggles.total; i++)
1708                 plugin_show_toggles.values[i]->in_use = 0;
1709         for(int i = 0; i < preset_edit_buttons.total; i++)
1710                 plugin_show_toggles.values[i]->in_use = 0;
1711
1712
1713         for(Track *track = mwindow->edl->tracks->first;
1714                 track;
1715                 track = track->next)
1716         {
1717                 if(track->expand_view)
1718                 {
1719                         for(int i = 0; i < track->plugin_set.total; i++)
1720                         {
1721                                 PluginSet *pluginset = track->plugin_set.values[i];
1722
1723                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1724                                 {
1725                                         int64_t total_x, y, total_w, h;
1726                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1727
1728                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1729                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1730                                                 plugin->plugin_type != PLUGIN_NONE)
1731                                         {
1732                                                 int x = total_x, w = total_w, left_margin = 5;
1733                                                 int right_margin = 5;
1734                                                 if(x < 0)
1735                                                 {
1736                                                         w -= -x;
1737                                                         x = 0;
1738                                                 }
1739                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1740
1741                                                 draw_3segmenth(x,
1742                                                         y,
1743                                                         w,
1744                                                         total_x,
1745                                                         total_w,
1746                                                         mwindow->theme->get_image("plugin_bg_data"),
1747                                                         0);
1748                                                 set_color(mwindow->theme->title_color);
1749                                                 set_font(mwindow->theme->title_font);
1750                                                 plugin->calculate_title(string, 0);
1751
1752 // Truncate string to int64_test visible in background
1753                                                 int len = strlen(string), j;
1754                                                 for(j = len; j >= 0; j--)
1755                                                 {
1756                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1757                                                         {
1758                                                                 string[j] = 0;
1759                                                         }
1760                                                         else
1761                                                                 break;
1762                                                 }
1763
1764 // Justify the text on the left boundary of the edit if it is visible.
1765 // Otherwise justify it on the left side of the screen.
1766                                                 int64_t text_x = total_x + left_margin;
1767                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1768                                                 text_x = MAX(left_margin, text_x);
1769                                                 draw_text(text_x,
1770                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1771                                                         string,
1772                                                         strlen(string),
1773                                                         0);
1774                                                 int64_t min_x = total_x + text_w;
1775
1776
1777 // Update plugin toggles
1778                                                 int toggle_x = total_x + total_w;
1779                                                 int toggle_y = y;
1780                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1781
1782 // On toggle
1783                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1784                                                 if(toggle_x > min_x)
1785                                                 {
1786                                                         if(current_on >= plugin_on_toggles.total)
1787                                                         {
1788                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1789                                                                 add_subwindow(plugin_on);
1790                                                                 plugin_on_toggles.append(plugin_on);
1791                                                         }
1792                                                         else
1793                                                         {
1794                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1795                                                         }
1796                                                         current_on++;
1797                                                 }
1798
1799 // Toggles for standalone plugins only
1800                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1801                                                 {
1802 // Show
1803                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1804                                                         if(toggle_x > min_x)
1805                                                         {
1806                                                                 if(current_show >= plugin_show_toggles.total)
1807                                                                 {
1808                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1809                                                                         add_subwindow(plugin_show);
1810                                                                         plugin_show_toggles.append(plugin_show);
1811                                                                 }
1812                                                                 else
1813                                                                 {
1814                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1815                                                                 }
1816                                                                 current_show++;
1817                                                         }
1818                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + 10;
1819                                                         if(toggle_x > min_x)
1820                                                         {
1821                                                                 if(current_preset >= preset_edit_buttons.total)
1822                                                                 {
1823                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1824                                                                         add_subwindow(preset_edit);
1825                                                                         preset_edit_buttons.append(preset_edit);
1826                                                                 }
1827                                                                 else
1828                                                                 {
1829                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1830                                                                 }
1831                                                                 current_preset++;
1832                                                         }
1833                                                 }
1834                                         }
1835                                 }
1836                         }
1837                 }
1838         }
1839
1840 // Remove unused toggles
1841
1842         while(current_preset < preset_edit_buttons.total)
1843         {
1844                 preset_edit_buttons.remove_object_number(current_preset);
1845         }
1846         while(current_show < plugin_show_toggles.total)
1847         {
1848                 plugin_show_toggles.remove_object_number(current_show);
1849         }
1850
1851         while(current_on < plugin_on_toggles.total)
1852         {
1853                 plugin_on_toggles.remove_object_number(current_on);
1854         }
1855 }
1856
1857 void TrackCanvas::refresh_plugintoggles()
1858 {
1859         for(int i = 0; i < plugin_on_toggles.total; i++)
1860         {
1861                 PluginOn *on = plugin_on_toggles.values[i];
1862                 on->reposition_window(on->get_x(), on->get_y());
1863         }
1864         for(int i = 0; i < plugin_show_toggles.total; i++)
1865         {
1866                 PluginShow *show = plugin_show_toggles.values[i];
1867                 show->reposition_window(show->get_x(), show->get_y());
1868         }
1869         for(int i = 0; i < preset_edit_buttons.total; i++)
1870         {
1871                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1872                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1873         }
1874 }
1875
1876 void TrackCanvas::draw_hard_edges()
1877 {
1878         int64_t x, y, w, h;
1879
1880         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1881                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1882                         if( !edit->hard_left && !edit->hard_right ) continue;
1883                         edit_dimensions(edit, x, y, w, h);
1884                         set_color(GREEN);
1885                         set_opaque();
1886                         int y1 = y;
1887                         if( track->show_titles() )
1888                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1889                         if( track->show_assets() )
1890                                 y1 += resource_h();
1891                         if( y1 == y )
1892                                 y1 += mwindow->theme->title_h;
1893                         if( edit->hard_left ) {
1894                                 ArrayList<int> xpt, ypt;
1895                                 xpt.append(x);              ypt.append(y1);
1896                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1897                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1898                                 fill_polygon(&xpt, &ypt);
1899                         }
1900                         if( edit->hard_right ) {
1901                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1902                                 xpt.append(x1);            ypt.append(y1);
1903                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1904                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1905                                 fill_polygon(&xpt, &ypt);
1906                         }
1907                 }
1908         }
1909 }
1910
1911 void TrackCanvas::draw_inout_points()
1912 {
1913 }
1914
1915
1916 void TrackCanvas::draw_drag_handle()
1917 {
1918         if(mwindow->session->current_operation == DRAG_EDITHANDLE2 ||
1919                 mwindow->session->current_operation == DRAG_PLUGINHANDLE2)
1920         {
1921 //printf("TrackCanvas::draw_drag_handle 1 %ld %ld\n", mwindow->session->drag_sample, mwindow->edl->local_session->view_start);
1922                 int64_t pixel1 = Units::round(mwindow->session->drag_position *
1923                         mwindow->edl->session->sample_rate /
1924                         mwindow->edl->local_session->zoom_sample -
1925                         mwindow->edl->local_session->view_start[pane->number]);
1926 //printf("TrackCanvas::draw_drag_handle 2 %d %jd\n", pane->number, pixel1);
1927                 set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1928                 set_inverse();
1929 //printf("TrackCanvas::draw_drag_handle 3\n");
1930                 draw_line(pixel1, 0, pixel1, get_h());
1931                 set_opaque();
1932 //printf("TrackCanvas::draw_drag_handle 4\n");
1933         }
1934 }
1935
1936
1937 void TrackCanvas::draw_transitions()
1938 {
1939         int64_t x, y, w, h;
1940
1941         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1942                 if( !track->show_transitions() ) continue;
1943
1944                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1945                         if(!edit->transition) continue;
1946                         edit_dimensions(edit, x, y, w, h);
1947                         int strip_x = x, edit_y = y;
1948                         get_transition_coords(edit, x, y, w, h);
1949                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
1950                         if( track->show_assets() && track->show_titles() )
1951                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
1952                         if( strip_y < edit_y ) strip_y = edit_y;
1953
1954                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
1955                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
1956                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1957                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1958                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
1959                                                 track->data_type);
1960                                 if( !server ) continue;
1961                                 VFrame *picon = server->get_picon();
1962                                 if( !picon ) continue;
1963                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
1964                                 int track_h = edit->track->vertical_span(mwindow->theme);
1965                                 if( picon_h > track_h ) picon_h = track_h;
1966                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
1967                         }
1968                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
1969                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
1970                                 int x = strip_x, w = strip_w;
1971                                 if( x < 0 ) {  w -= -x;  x = 0; }
1972                                 if( w + x > get_w() ) w -= (w + x) - get_w();
1973
1974                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
1975                                         mwindow->theme->get_image("plugin_bg_data"), 0);
1976                         }
1977                 }
1978         }
1979 }
1980
1981 void TrackCanvas::draw_loop_points()
1982 {
1983 //printf("TrackCanvas::draw_loop_points 1\n");
1984         if(mwindow->edl->local_session->loop_playback)
1985         {
1986 //printf("TrackCanvas::draw_loop_points 2\n");
1987                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
1988                         mwindow->edl->session->sample_rate /
1989                         mwindow->edl->local_session->zoom_sample -
1990                         mwindow->edl->local_session->view_start[pane->number]);
1991 //printf("TrackCanvas::draw_loop_points 3\n");
1992
1993                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1994                 {
1995                         set_color(GREEN);
1996                         draw_line(x, 0, x, get_h());
1997                 }
1998 //printf("TrackCanvas::draw_loop_points 4\n");
1999
2000                 x = Units::round(mwindow->edl->local_session->loop_end *
2001                         mwindow->edl->session->sample_rate /
2002                         mwindow->edl->local_session->zoom_sample -
2003                         mwindow->edl->local_session->view_start[pane->number]);
2004 //printf("TrackCanvas::draw_loop_points 5\n");
2005
2006                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2007                 {
2008                         set_color(GREEN);
2009                         draw_line(x, 0, x, get_h());
2010                 }
2011 //printf("TrackCanvas::draw_loop_points 6\n");
2012         }
2013 //printf("TrackCanvas::draw_loop_points 7\n");
2014 }
2015
2016 void TrackCanvas::draw_brender_range()
2017 {
2018         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2019         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2020         if( mwindow->edl->session->brender_end > 0 )
2021         {
2022                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2023                         mwindow->edl->session->sample_rate /
2024                         mwindow->edl->local_session->zoom_sample -
2025                         mwindow->edl->local_session->view_start[pane->number]);
2026                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2027                 {
2028                         set_color(RED);
2029                         draw_line(x1, 0, x1, get_h());
2030                 }
2031                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2032                         mwindow->edl->session->sample_rate /
2033                         mwindow->edl->local_session->zoom_sample -
2034                         mwindow->edl->local_session->view_start[pane->number]);
2035
2036                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2037                 {
2038                         set_color(RED);
2039                         draw_line(x2, 0, x2, get_h());
2040                 }
2041         }
2042 }
2043
2044 // The operations which correspond to each automation type
2045 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2046 {
2047         DRAG_MUTE,
2048         DRAG_CAMERA_X,
2049         DRAG_CAMERA_Y,
2050         DRAG_CAMERA_Z,
2051         DRAG_PROJECTOR_X,
2052         DRAG_PROJECTOR_Y,
2053         DRAG_PROJECTOR_Z,
2054         DRAG_FADE,
2055         DRAG_PAN,
2056         DRAG_MODE,
2057         DRAG_MASK,
2058         DRAG_SPEED
2059 };
2060
2061 // The buttonpress operations, so nothing changes unless the mouse moves
2062 // a certain amount.  This allows the keyframe to be used to position the
2063 // insertion point without moving itself.
2064 static int pre_auto_operations[AUTOMATION_TOTAL] =
2065 {
2066         DRAG_MUTE,
2067         DRAG_CAMERA_X,
2068         DRAG_CAMERA_Y,
2069         DRAG_CAMERA_Z,
2070         DRAG_PROJECTOR_X,
2071         DRAG_PROJECTOR_Y,
2072         DRAG_PROJECTOR_Z,
2073         DRAG_FADE,
2074         DRAG_PAN_PRE,
2075         DRAG_MODE_PRE,
2076         DRAG_MASK_PRE,
2077         DRAG_SPEED
2078 };
2079
2080
2081 int TrackCanvas::do_keyframes(int cursor_x,
2082         int cursor_y,
2083         int draw,
2084         int buttonpress,
2085         int &new_cursor,
2086         int &update_cursor,
2087         int &rerender)
2088 {
2089 // Note: button 3 (right mouse button) is not eaten to allow
2090 // track context menu to appear
2091         int result = 0;
2092         EDLSession *session = mwindow->edl->session;
2093
2094
2095
2096         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2097         {
2098                 0, 0, 0, 0, 0, 0, 0, 0,
2099                 pankeyframe_pixmap,
2100                 modekeyframe_pixmap,
2101                 maskkeyframe_pixmap,
2102         };
2103
2104
2105
2106         for(Track *track = mwindow->edl->tracks->first;
2107                 track && !result;
2108                 track = track->next) {
2109                 Auto *auto_keyframe = 0;
2110                 Automation *automation = track->automation;
2111
2112
2113 // Handle keyframes in reverse drawing order if a button press
2114                 int start = 0;
2115                 int end = AUTOMATION_TOTAL;
2116                 int step = 1;
2117                 if(buttonpress)
2118                 {
2119                         start = AUTOMATION_TOTAL - 1;
2120                         end = -1;
2121                         step = -1;
2122                 }
2123                 for(int i = start; i != end && !result; i += step)
2124                 {
2125 // Event not trapped and automation visible
2126                         Autos *autos = automation->autos[i];
2127                         if(!result && session->auto_conf->autos[i] && autos) {
2128                                 switch(i) {
2129                                 case AUTOMATION_MODE:
2130                                 case AUTOMATION_PAN:
2131                                 case AUTOMATION_MASK:
2132                                         result = do_autos(track, automation->autos[i],
2133                                                 cursor_x, cursor_y, draw,
2134                                                 buttonpress, auto_pixmaps[i],
2135                                                 auto_keyframe, rerender);
2136                                                 break;
2137
2138                                 default: {
2139                                         switch(autos->get_type()) {
2140                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2141                                                 Automation automation(0, track);
2142                                                 int grouptype = automation.autogrouptype(i, track);
2143                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2144                                                         mwindow->speed_before();
2145                                                 }
2146
2147                                                 if(draw) // Do dropshadow
2148                                                         result = do_float_autos(track, autos,
2149                                                                 cursor_x, cursor_y, draw,
2150                                                                 buttonpress, 1, 1, MDGREY,
2151                                                                 auto_keyframe, grouptype);
2152                                                 result = do_float_autos(track, autos,
2153                                                         cursor_x, cursor_y, draw, buttonpress,
2154                                                         0, 0, GWindowGUI::auto_colors[i],
2155                                                         auto_keyframe, grouptype);
2156
2157                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2158                                                         mwindow->speed_after(-1);
2159                                                 int current_grouptype = mwindow->edl->local_session->zoombar_showautotype;
2160                                                 if( result && buttonpress && grouptype != current_grouptype ) {
2161                                                         mwindow->edl->local_session->zoombar_showautotype = grouptype;
2162                                                         mwindow->gui->zoombar->update_autozoom();
2163                                                 }
2164                                                 break; }
2165
2166                                         case Autos::AUTOMATION_TYPE_INT: {
2167                                                 if(draw) // Do dropshadow
2168                                                         result = do_int_autos(track, autos,
2169                                                                 cursor_x, cursor_y, draw,
2170                                                                 buttonpress, 1, 1, MDGREY,
2171                                                                 auto_keyframe);
2172                                                 result = do_int_autos(track, autos,
2173                                                         cursor_x, cursor_y, draw, buttonpress,
2174                                                         0, 0, GWindowGUI::auto_colors[i],
2175                                                         auto_keyframe);
2176                                                 break; }
2177                                         }
2178                                         break; }
2179                                 }
2180
2181                                 if(result)
2182                                 {
2183                                         if(mwindow->session->current_operation == auto_operations[i])
2184                                                 rerender = 1;
2185
2186 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2187 // __LINE__,
2188 // mwindow->session->current_operation,
2189 // auto_operations[i]);
2190                                         if(buttonpress)
2191                                         {
2192                                                 if (buttonpress == 2 && auto_keyframe )
2193                                                 {
2194                                                         double position = track->from_units(auto_keyframe->position);
2195                                                         mwindow->edl->local_session->set_selectionstart(position);
2196                                                         mwindow->edl->local_session->set_selectionend(position);
2197                                                 }
2198                                                 if (buttonpress != 3)
2199                                                 {
2200                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2201                                                                 fill_ganged_autos(get_double_click(), 0, track,
2202                                                                         (FloatAuto*)mwindow->session->drag_auto);
2203                                                         mwindow->session->current_operation = pre_auto_operations[i];
2204                                                         update_drag_caption();
2205                                                         rerender = 1;
2206                                                 }
2207                                                 else if( auto_keyframe )
2208                                                 {
2209                                                         gui->keyframe_menu->update(automation,
2210                                                                 autos,
2211                                                                 auto_keyframe);
2212                                                         gui->keyframe_menu->activate_menu();
2213                                                         rerender = 1; // the position changes
2214                                                 }
2215                                                 else if( autos )
2216                                                 {
2217                                                         gui->keyframe_hide->update(autos);
2218                                                         gui->keyframe_hide->activate_menu();
2219                                                         rerender = 1; // the position changes
2220                                                 }
2221                                                 if(buttonpress == 1 && ctrl_down() &&
2222                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2223                                                         rerender = 1; // special case: curve mode changed
2224                                         }
2225                                 }
2226                         }
2227                 }
2228
2229                 if(!result && session->auto_conf->plugins) {
2230                         Plugin *plugin;
2231                         KeyFrame *keyframe;
2232                         result = do_plugin_autos(track, cursor_x, cursor_y,
2233                                 draw, buttonpress, plugin, keyframe);
2234                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2235                                 rerender = 1;
2236                         }
2237                         if(result && (buttonpress == 1)) {
2238                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2239                                 update_drag_caption();
2240                                 rerender = 1;
2241                         }
2242                         else if (result && (buttonpress == 3)) {
2243                                 gui->keyframe_menu->update(plugin, keyframe);
2244                                 gui->keyframe_menu->activate_menu();
2245                                 rerender = 1; // the position changes
2246                         }
2247                 }
2248         }
2249
2250 // Final pass to trap event
2251         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2252                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2253                         mwindow->session->current_operation == auto_operations[i]) {
2254                         result = 1;
2255                         break;
2256                 }
2257         }
2258
2259         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2260                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2261                 result = 1;
2262         }
2263
2264         update_cursor = 1;
2265         if(result) {
2266                 new_cursor = UPRIGHT_ARROW_CURSOR;
2267         }
2268
2269
2270         return result;
2271 }
2272
2273 void TrackCanvas::draw_keyframe_reticle()
2274 {
2275         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2276         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2277
2278         int current_op = mwindow->session->current_operation, dragging = 0;
2279         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2280                 if( current_op == auto_operations[i] ) dragging = 1;
2281         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2282
2283         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2284                 mwindow->session->drag_auto->autos->autoidx : -1;
2285
2286         if( get_buttonpress() == 1 && dragging &&
2287             keyframe_hairline == HAIRLINE_DRAGGING ) {
2288                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2289                 return;
2290         }
2291
2292         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == 2 &&
2293             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2294                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2295                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2296                         Automation *automation = track->automation;
2297                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2298                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2299                                 // automation visible
2300                                 Autos *autos = automation->autos[i];
2301                                 if( !autos ) continue;
2302                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2303                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2304                                      auto_keyframe = auto_keyframe->next ) {
2305                                         draw_hairline(auto_keyframe, BLUE, show);
2306                                 }
2307                         }
2308                 }
2309
2310                 if( dragging )
2311                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2312         }
2313 }
2314
2315 void TrackCanvas::draw_auto(Auto *current,
2316         int x,
2317         int y,
2318         int center_pixel,
2319         int zoom_track)
2320 {
2321         int x1, y1, x2, y2;
2322
2323         x1 = x - HANDLE_W / 2;
2324         x2 = x + HANDLE_W / 2;
2325         y1 = center_pixel + y - HANDLE_W / 2;
2326         y2 = center_pixel + y + HANDLE_W / 2;
2327
2328         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2329         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2330
2331         draw_box(x1, y1, x2 - x1, y2 - y1);
2332 }
2333
2334
2335 // This draws lines for bezier in & out controls
2336 void TrackCanvas::draw_cropped_line(int x1,
2337         int y1,
2338         int x2,
2339         int y2,
2340         int min_y,
2341         int max_y)
2342 {
2343
2344
2345 // Don't care about x since it is clipped by the window.
2346 // Put y coords in ascending order
2347         if(y2 < y1) {
2348                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2349                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2350         }
2351
2352
2353
2354         double slope = (double)(x2 - x1) / (y2 - y1);
2355 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2356         if(y1 < min_y) {
2357                 x1 = (int)(x1 + (min_y - y1) * slope);
2358                 y1 = min_y;
2359         }
2360         else if(y1 >= max_y) {
2361                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2362                 y1 = max_y - 1;
2363         }
2364
2365         if(y2 >= max_y) {
2366                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2367                 y2 = max_y - 1;
2368         }
2369         else if(y2 < min_y) {
2370                 x2 = (int)(x2 + (min_y - y2) * slope);
2371                 y1 = min_y;
2372         }
2373
2374
2375 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2376         if( y1 >= min_y && y1 < max_y &&
2377             y2 >= min_y && y2 < max_y )
2378                 draw_line(x1, y1, x2, y2);
2379 }
2380
2381
2382 void TrackCanvas::draw_floatauto(FloatAuto *current,
2383         int x,
2384         int y,
2385         int in_x,
2386         int in_y,
2387         int out_x,
2388         int out_y,
2389         int center_pixel,
2390         int zoom_track,
2391         int color)
2392 {
2393         int x1 = x - HANDLE_W / 2; // Center
2394         int x2 = x + HANDLE_W / 2;
2395         int y1 = center_pixel + y - HANDLE_H / 2;
2396         int y2 = center_pixel + y + HANDLE_H / 2;
2397         int ymin = center_pixel - zoom_track / 2;
2398         int ymax = center_pixel + zoom_track / 2;
2399         CLAMP(y1, ymin, ymax);
2400         CLAMP(y2, ymin, ymax);
2401
2402         if(y2 - 1 > y1)
2403         {
2404                 set_color(BLACK);
2405                 draw_box(x1 + 1, y1 + 1, x2 - x1, y2 - y1);
2406                 set_color(color);
2407                 draw_box(x1, y1, x2 - x1, y2 - y1);
2408         }
2409
2410 // show bezier control points (only) if this
2411 // floatauto doesn't adjust it's tangents automatically
2412         if(current->curve_mode != FloatAuto::FREE &&
2413            current->curve_mode != FloatAuto::TFREE)
2414                 return;
2415
2416         if(in_x != x)
2417                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2418         if(out_x != x)
2419                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2420 }
2421
2422 inline int quantize(float f) { return (int)floor(f + 0.5); }
2423
2424 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2425         int x, int y, int cp_x, int cp_y, int center_pixel,
2426         int zoom_track, int color)
2427 // draw the tangent and a handle for given b├ęzier ctrl point
2428 {
2429         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2430
2431         float slope = (float)(cp_y - y)/(cp_x - x);
2432         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2433         if(slope != 0)
2434                 cp_x = x + quantize((cp_y - y) / slope);
2435
2436         y    += center_pixel;
2437         cp_y += center_pixel;
2438
2439         // drawing the tangent as a dashed line...
2440         int const dash = HANDLE_W;
2441         int const gap  = HANDLE_W / 2;
2442         float sx = 3 * (cp_x - x) / 4.;
2443         float ex = 0;
2444
2445         // q is the x displacement for a unit line of slope
2446         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2447
2448         float dist = 1/q * sx;
2449         if( dist > dash )
2450                 ex = sx - q * dash;
2451
2452         set_color(color);
2453         do {
2454                 float sy = slope * sx, ey = slope * ex;
2455                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2456                 sx = ex - q * gap;
2457                 ex = sx - q * dash;
2458         } while(q*ex > 0);
2459
2460         if(handle_visible)
2461         {
2462                 int r = HANDLE_W / 2;
2463                 int cp_x1 = cp_x - r;
2464                 int cp_y1 = cp_y - r;
2465                 set_color(BLACK);
2466                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2467                 set_color(color);
2468                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2469         }
2470 }
2471
2472
2473 int TrackCanvas::test_auto(Auto *current,
2474         int x, int y, int center_pixel, int zoom_track,
2475         int cursor_x, int cursor_y, int buttonpress)
2476 {
2477         int x1, y1, x2, y2;
2478         int result = 0;
2479
2480         x1 = x - HANDLE_W / 2;
2481         x2 = x + HANDLE_W / 2;
2482         y1 = center_pixel + y - HANDLE_H / 2;
2483         y2 = center_pixel + y + HANDLE_H / 2;
2484         int ymin = center_pixel - zoom_track / 2;
2485         int ymax = center_pixel + zoom_track / 2;
2486         CLAMP(y1, ymin, ymax);
2487         CLAMP(y2, ymin, ymax);
2488
2489         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2490         {
2491                 if(buttonpress && buttonpress != 3)
2492                 {
2493                         mwindow->session->drag_auto = current;
2494                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2495                         // Toggle Autos don't respond to vertical zoom, they always show up
2496                         // with "on" == 100% == line on top
2497                         mwindow->session->drag_start_position = current->position;
2498                         mwindow->session->drag_origin_x = cursor_x;
2499                         mwindow->session->drag_origin_y = cursor_y;
2500                 }
2501                 result = 1;
2502         }
2503
2504         if(buttonpress && buttonpress != 3 && result)
2505         {
2506 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2507                 mwindow->undo->update_undo_before();
2508         }
2509
2510         return result;
2511 }
2512
2513 // some Helpers for test_floatauto(..)
2514 // and for dragging the tangents/ctrl points
2515 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2516         float cursor_x, float cursor_y)
2517 {
2518 // Control point switched off?
2519         if( x0 == ctrl_x ) return 0.0;
2520         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2521         double x = cursor_x-x0, y = cursor_y-y0;
2522 // wrong side of ctrl handle
2523         if( x*x1 < 0 ) return 0.0;
2524 // outside handle radius
2525         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2526         double xx1 = x1*x1, yy1 = y1*y1;
2527         double xx = x*x, yy = y*y;
2528 // distance squared from cursor to cursor projected to line from ctrl to handle
2529 //   along a line perpendicular to line from ctrl to handle (closest approach)
2530 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2531         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2532         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2533 }
2534
2535
2536 inline
2537 float levered_position(float position, float ref_pos)
2538 {
2539         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2540                 return 0.0;
2541         return ref_pos / position;
2542 }
2543
2544
2545 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2546 // transforms automation value into current display coords,
2547 // dependant on current automation display range for the given kind of automation
2548 {
2549         if(!mwindow || !mwindow->edl) return 0;
2550         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2551         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2552         float automation_range = automation_max - automation_min;
2553         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2554                 return 0;
2555         return (auto_value - automation_min) / automation_range;
2556 }
2557
2558
2559
2560 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2561         int in_y, int out_x, int out_y, int center_pixel, int zoom_track,
2562         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2563 {
2564         int result = 0;
2565
2566         int x1 = x - HANDLE_W / 2;
2567         int x2 = x + HANDLE_W / 2;
2568         int y1 = center_pixel + y - HANDLE_W / 2;
2569         int y2 = center_pixel + y + HANDLE_W / 2;
2570         int ymin = center_pixel - zoom_track / 2;
2571         int ymax = center_pixel + zoom_track / 2;
2572         CLAMP(y1, ymin, ymax);
2573         CLAMP(y2, ymin, ymax);
2574
2575         int in_x1 = in_x - HANDLE_W / 2;
2576         int in_x2 = in_x + HANDLE_W / 2;
2577         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2578         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2579         CLAMP(in_y1, ymin, ymax);
2580         CLAMP(in_y2, ymin, ymax);
2581
2582         int out_x1 = out_x - HANDLE_W / 2;
2583         int out_x2 = out_x + HANDLE_W / 2;
2584         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2585         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2586         CLAMP(out_y1, ymin, ymax);
2587         CLAMP(out_y2, ymin, ymax);
2588
2589
2590 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2591 // buttonpress could be the start of a drag operation
2592 #define INIT_DRAG(POS,VAL) \
2593                 mwindow->session->drag_auto = current;      \
2594                 mwindow->session->drag_origin_x = cursor_x;  \
2595                 mwindow->session->drag_origin_y = cursor_y;   \
2596                 mwindow->session->drag_start_position = (POS); \
2597                 mwindow->session->drag_start_percentage = (VAL);
2598
2599 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2600
2601
2602 // without modifier we are manipulating the automation node
2603 // with ALT it's about dragging only the value of the node
2604 // with SHIFT the value snaps to the value of neighbouring nodes
2605 // CTRL indicates we are rather manipulating the tangent(s) of the node
2606
2607         if(!ctrl_down())
2608         {
2609                 if( WITHIN(x1,x2,y1,y2))
2610                 {       // cursor hits node
2611                         result = 1;
2612
2613                         if(buttonpress && (buttonpress != 3))
2614                         {
2615                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2616                                 mwindow->session->drag_handle = 0;
2617                 }       }
2618         }
2619         else // ctrl_down()
2620         {
2621                 if( WITHIN(x1,x2,y1,y2))
2622                 {
2623                         result = 1;
2624                         if(buttonpress && (buttonpress != 3))
2625                         {
2626                                 // could be ctrl-click or ctrl-drag
2627                                 // click would cycle through tangent modes
2628                                 ((FloatAuto*)current)->toggle_curve_mode();
2629
2630                                 // drag will start dragging the tangent, if applicable
2631                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2632                                 mwindow->session->drag_handle = 0;
2633                         }
2634                 }
2635
2636                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2637
2638 // Test in control
2639                 if( in_x != x && current->position > 0 &&
2640                         (FloatAuto::FREE == current->curve_mode ||
2641                          FloatAuto::TFREE == current->curve_mode))
2642 // act on in control handle only if
2643 // tangent is significant and is editable (not automatically choosen)
2644                 {
2645                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2646  // either cursor in ctrl-point handle or cursor on tangent line
2647                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2648                                 result = 1;
2649                                 if(buttonpress && (buttonpress != 3)) {
2650                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2651 //                                      lever = 1.0;
2652                                         mwindow->session->drag_handle = 1;
2653                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2654                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2655                                                   value_to_percentage(new_invalue, autogrouptype))
2656                                 }
2657                         }
2658                 }
2659
2660 // Test out control
2661                 if(out_x != x &&
2662                         (FloatAuto::FREE == current->curve_mode ||
2663                          FloatAuto::TFREE == current->curve_mode))
2664 // act on out control only if tangent is significant and is editable
2665                 {
2666                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2667                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2668                                 result = 1;
2669                                 if(buttonpress && (buttonpress != 3)) {
2670                                         if(lever == 0.0) lever=1.0;
2671 //                                      lever = 1.0;
2672                                         mwindow->session->drag_handle = 2;
2673                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2674                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2675                                                   value_to_percentage(new_outvalue, autogrouptype))
2676                                 }
2677                         }
2678                 }
2679         } // end ctrl_down()
2680
2681 #undef WITHIN
2682 #undef INIT_DRAG
2683
2684 // if(buttonpress)
2685 // 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",
2686 // mwindow->session->drag_handle,
2687 // ctrl_down(),
2688 // cursor_x,
2689 // cursor_y,
2690 // x1, x2, y1, y2);
2691         if(buttonpress && (buttonpress != 3) && result)
2692         {
2693                 mwindow->undo->update_undo_before();
2694         }
2695
2696         return result;
2697 }
2698
2699
2700 // Get the float value & y for position x on the canvas
2701 #define X_TO_FLOATLINE(x) \
2702         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2703         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2704 /* Call by reference fails for some reason here */ \
2705         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2706         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2707         double position = unit_start + x * zoom_units; \
2708         double value = 0; \
2709         if(position2 > position1) \
2710         { \
2711                 value = value1 + \
2712                         (value2 - value1) * \
2713                         (position - position1) / \
2714                         (position2 - position1); \
2715         } \
2716         else \
2717         { \
2718                 value = value1; \
2719         } \
2720         AUTOMATIONCLAMPS(value, autogrouptype); \
2721         int y = center_pixel + \
2722                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2723
2724
2725 void TrackCanvas::draw_floatline(int center_pixel,
2726         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2727         double unit_start, double zoom_units, double yscale,
2728         int x1, int y1, int x2, int y2,
2729         int color, int autogrouptype)
2730 {
2731 // Solve bezier equation for either every pixel or a certain large number of
2732 // points.
2733
2734 // Not using slope intercept
2735         x1 = MAX(0, x1);
2736         int prev_y = y1 + center_pixel;
2737
2738
2739 // Call by reference fails for some reason here
2740         FloatAuto *previous1 = previous, *next1 = next;
2741         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2742         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2743         float automation_range = automation_max - automation_min;
2744
2745         for(int x = x1; x < x2; x++)
2746         {
2747 // Interpolate value between frames
2748                 X_TO_FLOATLINE(x)
2749
2750                 if(/* x > x1 && */
2751                         y >= center_pixel - yscale / 2 &&
2752                         y < center_pixel + yscale / 2 - 1)
2753                 {
2754 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2755 // y,
2756 // (int)(center_pixel - yscale / 2),
2757 // (int)(center_pixel + yscale / 2 - 1));
2758
2759 //printf("draw_line(%d,%d,  %d,%d)\n", x - 1, prev_y  , x, y);
2760                         draw_line(x - 1, prev_y  , x, y   );
2761                 }
2762                 prev_y = y;
2763         }
2764 }
2765
2766
2767
2768
2769
2770 int TrackCanvas::test_floatline(int center_pixel,
2771                 FloatAutos *autos,
2772                 double unit_start,
2773                 double zoom_units,
2774                 double yscale,
2775                 int x1,
2776                 int x2,
2777                 int cursor_x,
2778                 int cursor_y,
2779                 int buttonpress,
2780                 int autogrouptype)
2781 {
2782         int result = 0;
2783
2784
2785         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2786         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2787         float automation_range = automation_max - automation_min;
2788         FloatAuto *previous1 = 0, *next1 = 0;
2789         X_TO_FLOATLINE(cursor_x);
2790
2791         if(cursor_x >= x1 &&
2792                 cursor_x < x2 &&
2793                 cursor_y >= y - HANDLE_W / 2 &&
2794                 cursor_y < y + HANDLE_W / 2 &&
2795                 !ctrl_down())
2796         {
2797                 result = 1;
2798
2799 // Menu
2800                 if(buttonpress == 3)
2801                 {
2802                 }
2803                 else
2804 // Create keyframe
2805                 if(buttonpress)
2806                 {
2807                         Auto *current;
2808                         mwindow->undo->update_undo_before();
2809                         double position = autos->track->from_units(position1);
2810                         position = mwindow->edl->align_to_frame(position, 0);
2811                         int64_t new_position = autos->track->to_units(position,0);
2812                         current = mwindow->session->drag_auto = autos->insert_auto(new_position);
2813                         ((FloatAuto*)current)->set_value(value);
2814                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2815                         mwindow->session->drag_start_position = current->position;
2816                         mwindow->session->drag_origin_x = cursor_x;
2817                         mwindow->session->drag_origin_y = cursor_y;
2818                         mwindow->session->drag_handle = 0;
2819                 }
2820         }
2821
2822
2823         return result;
2824 }
2825
2826
2827 void TrackCanvas::fill_ganged_autos(int all, float change, Track *skip, FloatAuto *fauto)
2828 {
2829         if( !skip->gang ) return;
2830 // Handles the special case of modifying a fadeauto
2831 // when there are ganged faders on several tracks
2832         double position = skip->from_units(fauto->position);
2833         int autoidx = fauto->autos->autoidx;
2834
2835         for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2836                 if( (all || current->data_type == skip->data_type) &&
2837                     current->gang && current->record && current != skip ) {
2838                         FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2839                         float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2840                         float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2841                         int64_t current_position = current->to_units(position, 1);
2842                         FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
2843                         if( keyframe ) {
2844 // keyframe exists, just change it
2845                                 float value = keyframe->get_value();
2846                                 float new_value = value + change;
2847                                 CLAMP(new_value, auto_min, auto_max);
2848                                 keyframe->adjust_to_new_coordinates(current_position, new_value);
2849                         }
2850                         else {
2851 // create keyframe on neighbouring track at the point in time given by fauto
2852                                 FloatAuto *previous = 0, *next = 0;
2853                                 float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2854                                 float new_value = value + change;
2855                                 CLAMP(new_value, auto_min, auto_max);
2856                                 keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2857                                 keyframe->set_value(new_value);
2858                         }
2859                         mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2860                 }
2861         }
2862 }
2863
2864 void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *fauto)
2865 {
2866         double position = skip->from_units(fauto->position);
2867 // Move the gangs
2868         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2869                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2870                 int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2871                 float new_value = keyframe->get_value() + change;
2872                 CLAMP(new_value,
2873                       mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2874                       mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2875                 keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2876         }
2877 }
2878
2879 void TrackCanvas::clear_ganged_autos()
2880 {
2881 // remove the gangs
2882         for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2883                 FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2884                 keyframe->autos->remove_nonsequential(keyframe);
2885         }
2886         mwindow->session->drag_auto_gang->remove_all();
2887 }
2888
2889
2890 void TrackCanvas::draw_toggleline(int center_pixel,
2891         int x1,
2892         int y1,
2893         int x2,
2894         int y2)
2895 {
2896         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2897
2898         if(y2 != y1)
2899         {
2900                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2901         }
2902 }
2903
2904 int TrackCanvas::test_toggleline(Autos *autos,
2905         int center_pixel,
2906         int x1,
2907         int y1,
2908         int x2,
2909         int y2,
2910         int cursor_x,
2911         int cursor_y,
2912         int buttonpress)
2913 {
2914         int result = 0;
2915         if(cursor_x >= x1 && cursor_x < x2)
2916         {
2917                 int miny = center_pixel + y1 - HANDLE_W / 2;
2918                 int maxy = center_pixel + y1 + HANDLE_W / 2;
2919                 if(cursor_y >= miny && cursor_y < maxy)
2920                 {
2921                         result = 1;
2922
2923 // Menu
2924                         if(buttonpress == 3)
2925                         {
2926                         }
2927                         else
2928 // Insert keyframe
2929                         if(buttonpress)
2930                         {
2931                                 Auto *current;
2932                                 double position = (double)(cursor_x +
2933                                                 mwindow->edl->local_session->view_start[pane->number]) *
2934                                         mwindow->edl->local_session->zoom_sample /
2935                                         mwindow->edl->session->sample_rate;
2936                                 int64_t unit_position = autos->track->to_units(position, 0);
2937                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
2938
2939                                 mwindow->undo->update_undo_before();
2940
2941                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
2942                                 ((IntAuto*)current)->value = new_value;
2943                                 // Toggle Autos don't respond to vertical zoom, they always show up
2944                                 // with "on" == 100% == line on top
2945                                 mwindow->session->drag_start_percentage = (float)new_value;
2946                                 mwindow->session->drag_start_position = current->position;
2947                                 mwindow->session->drag_origin_x = cursor_x;
2948                                 mwindow->session->drag_origin_y = cursor_y;
2949                         }
2950                 }
2951         };
2952
2953         return result;
2954 }
2955
2956 void TrackCanvas::calculate_viewport(Track *track,
2957         double &view_start,   // Seconds
2958         double &unit_start,
2959         double &view_end,     // Seconds
2960         double &unit_end,
2961         double &yscale,
2962         int &center_pixel,
2963         double &zoom_sample,
2964         double &zoom_units)
2965 {
2966
2967         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
2968                 mwindow->edl->local_session->zoom_sample /
2969                 mwindow->edl->session->sample_rate;
2970         unit_start = track->to_doubleunits(view_start);
2971         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
2972                 get_w()) *
2973                 mwindow->edl->local_session->zoom_sample /
2974                 mwindow->edl->session->sample_rate;
2975         unit_end = track->to_doubleunits(view_end);
2976
2977         int y = track->y_pixel
2978                         - mwindow->edl->local_session->track_start[pane->number];
2979         int has_titles = track->show_titles();
2980         int has_assets = track->show_assets();
2981         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
2982         double asset_h = resource_h();
2983         double title_h = mwindow->theme->title_h;
2984         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
2985         double dy = has_titles ?
2986                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2) :
2987                 ( has_assets ? asset_h/2 : 0) ;
2988         if( dy < title_h/2 ) { ys = title_h;  dy = ys / 2; }
2989         yscale = ys;
2990         center_pixel = y + dy;
2991
2992         zoom_sample = mwindow->edl->local_session->zoom_sample;
2993         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
2994 }
2995
2996 float TrackCanvas::percentage_to_value(float percentage,
2997         int is_toggle,
2998         Auto *reference,
2999         int autogrouptype)
3000 {
3001         float result;
3002         if(is_toggle)
3003         {
3004                 if(percentage > 0.5)
3005                         result = 1;