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