mask tweaks, focus follows centroid, gradient/colorpicker rework, no hard edges in...
[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / trackcanvas.C
1
2 /*
3  * CINELERRA
4  * Copyright (C) 1997-2014 Adam Williams <broadcast at earthling dot net>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  */
21
22 #include "apatchgui.inc"
23 #include "asset.h"
24 #include "autoconf.h"
25 #include "automation.h"
26 #include "bcsignals.h"
27 #include "bctimer.h"
28 #include "clip.h"
29 #include "bccolors.h"
30 #include "cache.h"
31 #include "canvas.h"
32 #include "cplayback.h"
33 #include "cursors.h"
34 #include "cwindowgui.h"
35 #include "cwindow.h"
36 #include "edithandles.h"
37 #include "editpopup.h"
38 #include "edits.h"
39 #include "edl.h"
40 #include "edlsession.h"
41 #include "floatauto.h"
42 #include "floatautos.h"
43 #include "gwindowgui.h"
44 #include "indexstate.h"
45 #include "intauto.h"
46 #include "intautos.h"
47 #include "keyframe.h"
48 #include "keyframepopup.h"
49 #include "keyframes.h"
50 #include "keys.h"
51 #include "labels.h"
52 #include "localsession.h"
53 #include "mainclock.h"
54 #include "maincursor.h"
55 #include "mainsession.h"
56 #include "mainundo.h"
57 #include "maskautos.h"
58 #include "mbuttons.h"
59 #include "mtimebar.h"
60 #include "mwindowgui.h"
61 #include "mwindow.h"
62 #include "panautos.h"
63 #include "patchbay.h"
64 #include "playbackengine.h"
65 #include "playtransport.h"
66 #include "plugin.h"
67 #include "pluginpopup.h"
68 #include "pluginserver.h"
69 #include "pluginset.h"
70 #include "plugintoggles.h"
71 #include "preferences.h"
72 #include "renderengine.h"
73 #include "resourcepixmap.h"
74 #include "resourcethread.h"
75 #include "swindow.h"
76 #include "theme.h"
77 #include "trackcanvas.h"
78 #include "tracking.h"
79 #include "trackpopup.h"
80 #include "tracks.h"
81 #include "transition.h"
82 #include "transitionhandles.h"
83 #include "transitionpopup.h"
84 #include "transportque.h"
85 #include "vframe.h"
86 #include "vpatchgui.inc"
87 #include "vrender.h"
88 #include "zoombar.h"
89
90 #include <string.h>
91
92 //#define PIXMAP_AGE -5
93 #define PIXMAP_AGE -32
94
95 TrackCanvas::TrackCanvas(MWindow *mwindow,
96         TimelinePane *pane,
97         int x,
98         int y,
99         int w,
100         int h)
101  : BC_SubWindow(x,
102         y,
103         w,
104         h)
105 {
106         this->mwindow = mwindow;
107         this->gui = mwindow->gui;
108         this->pane = pane;
109
110         selection_midpoint = 0;
111         drag_scroll = 0;
112         active = 0;
113         temp_picon = 0;
114         resource_timer = new Timer;
115         render_timer = new Timer;
116         hourglass_enabled = 0;
117         timebar_position = -1;
118         snapped = 0;
119 }
120
121 TrackCanvas::~TrackCanvas()
122 {
123 //      delete transition_handles;
124         delete edit_handles;
125         delete keyframe_pixmap;
126         delete camerakeyframe_pixmap;
127         delete modekeyframe_pixmap;
128         delete pankeyframe_pixmap;
129         delete projectorkeyframe_pixmap;
130         delete maskkeyframe_pixmap;
131         delete background_pixmap;
132         if(temp_picon) delete temp_picon;
133         delete render_timer;
134         delete resource_timer;
135 }
136
137 void TrackCanvas::create_objects()
138 {
139         background_pixmap = new BC_Pixmap(this, get_w(), get_h());
140 //      transition_handles = new TransitionHandles(mwindow, this);
141         edit_handles = new EditHandles(mwindow, this);
142         keyframe_pixmap = new BC_Pixmap(this, mwindow->theme->keyframe_data, PIXMAP_ALPHA);
143         camerakeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->camerakeyframe_data, PIXMAP_ALPHA);
144         modekeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->modekeyframe_data, PIXMAP_ALPHA);
145         pankeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->pankeyframe_data, PIXMAP_ALPHA);
146         projectorkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->projectorkeyframe_data, PIXMAP_ALPHA);
147         maskkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->maskkeyframe_data, PIXMAP_ALPHA);
148         draw(NORMAL_DRAW, 1);
149         update_cursor(0);
150         flash(0);
151 }
152
153 void TrackCanvas::resize_event()
154 {
155 //printf("TrackCanvas::resize_event 1\n");
156         draw(NORMAL_DRAW, 0);
157         flash(0);
158 //printf("TrackCanvas::resize_event 2\n");
159 }
160
161 int TrackCanvas::keypress_event()
162 {
163         return 0;
164 }
165
166 int TrackCanvas::cursor_leave_event()
167 {
168 // Because drag motion calls get_cursor_over_window we can be sure that
169 // all highlights get deleted now.
170 // This ended up blocking keyboard input from the drag operations.
171         if( timebar_position >= 0 )
172         {
173                 timebar_position = -1;
174                 if( pane->timebar )
175                         pane->timebar->update(1);
176         }
177
178         return 0;
179 //      return drag_motion();
180 }
181
182 int TrackCanvas::drag_motion_event()
183 {
184         return gui->drag_motion();
185 }
186
187 int TrackCanvas::drag_motion(
188                 Track **over_track, Edit **over_edit,
189                 PluginSet **over_pluginset, Plugin **over_plugin)
190 {
191         int cursor_x = get_relative_cursor_x();
192         int cursor_y = get_relative_cursor_y();
193         if( get_cursor_over_window() ) {
194                 drag_cursor_motion(cursor_x, cursor_y,
195                         over_track, over_edit, over_pluginset, over_plugin);
196         }
197         if( over_track && !*over_track )
198                 *over_track = pane->over_patchbay();
199         return 0;
200 }
201
202 int TrackCanvas::drag_cursor_motion(int cursor_x, int cursor_y,
203                 Track **over_track, Edit **over_edit,
204                 PluginSet **over_pluginset, Plugin **over_plugin)
205 {
206         if( cursor_x >= 0 && cursor_y >= 0 &&
207             cursor_x < get_w() && cursor_y < get_h() )
208         {
209 //printf("TrackCanvas::drag_motion %d %d\n", __LINE__, pane->number);
210 // Find the edit and track the cursor is over
211                 for(Track *track = mwindow->edl->tracks->first; track; track = track->next)
212                 {
213                         int64_t track_x, track_y, track_w, track_h;
214                         track_dimensions(track, track_x, track_y, track_w, track_h);
215
216                         if(cursor_y >= track_y &&
217                                 cursor_y < track_y + track_h)
218                         {
219                                 *over_track = track;
220                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
221                                 {
222                                         int64_t edit_x, edit_y, edit_w, edit_h;
223                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
224                                         if( cursor_y < edit_y || cursor_y >= edit_y + edit_h ) continue;
225                                         if( cursor_x >= edit_x && cursor_x < edit_x + edit_w ) {
226                                                 *over_edit = edit;
227                                                 break;
228                                         }
229                                         if( edit != track->edits->last ) continue;
230                                         if( mwindow->session->current_operation != DRAG_ATRANSITION &&
231                                             mwindow->session->current_operation != DRAG_VTRANSITION ) continue;
232                                         if( !edit->silence() ) {
233                                                 // add silence to allow drag transition past last edit
234                                                 //  will be deleted by Edits::optimize if not used
235                                                 double length = mwindow->edl->session->default_transition_length;
236                                                 int64_t start = edit->startproject+edit->length;
237                                                 int64_t units = track->to_units(length, 1);
238                                                 track->edits->create_silence(start, start+units);
239                                                 continue;
240                                         }
241                                         if( cursor_x >= edit_x ) { *over_edit = edit; break; }
242                                 }
243
244                                 for(int i = 0; i < track->plugin_set.total; i++)
245                                 {
246                                         PluginSet *pluginset = track->plugin_set.values[i];
247                                         for(Plugin *plugin = (Plugin*)pluginset->first;
248                                                 plugin;
249                                                 plugin = (Plugin*)plugin->next)
250                                         {
251                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
252                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
253
254                                                 if(cursor_y >= plugin_y &&
255                                                         cursor_y < plugin_y + plugin_h)
256                                                 {
257                                                         *over_pluginset = plugin->plugin_set;
258
259                                                         if(cursor_x >= plugin_x &&
260                                                                 cursor_x < plugin_x + plugin_w)
261                                                         {
262                                                                 *over_plugin = plugin;
263                                                                 break;
264                                                         }
265                                                 }
266                                         }
267                                 }
268                                 break;
269                         }
270                 }
271         }
272
273         return 0;
274 }
275
276
277 int TrackCanvas::drag_stop_event()
278 {
279         int result = gui->drag_stop();
280         if( !result && mwindow->session->current_operation ) {
281                 mwindow->session->current_operation = NO_OPERATION;
282                 drag_scroll = 0;
283         }
284         return result;
285 }
286
287 int TrackCanvas::drag_stop(int *redraw)
288 {
289         int result = 0;
290         int insertion  = 0;
291         int over_window = 0;
292         int cursor_x = -1, cursor_y = -1;
293
294         if( get_cursor_over_window() ) {
295                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
296                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
297                         over_window = 1;
298                 else {
299                         Track *track = pane->over_patchbay();
300                         if( track && mwindow->session->track_highlighted == track )
301                                 over_window = 1;
302                 }
303         }
304
305         if( over_window ) {
306                 switch(mwindow->session->current_operation) {
307                 case DRAG_VTRANSITION:
308                 case DRAG_ATRANSITION:
309                         if(mwindow->session->edit_highlighted) {
310                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
311                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
312                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
313                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
314                                         mwindow->session->current_operation = NO_OPERATION;
315                                         mwindow->paste_transition();
316                                         result = 1;
317                                 }
318                         }
319                         *redraw = 1;
320                         break;
321
322 // Behavior for dragged plugins is limited by the fact that a shared plugin
323 // can only refer to a standalone plugin that exists in the same position in
324 // time.  Dragging a plugin from one point in time to another can't produce
325 // a shared plugin to the original plugin.  In this case we relocate the
326 // plugin instead of sharing it.
327                 case DRAG_AEFFECT_COPY:
328                 case DRAG_VEFFECT_COPY:
329                         if( mwindow->session->track_highlighted &&
330                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
331                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
332                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
333                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
334                                 mwindow->session->current_operation = NO_OPERATION;
335
336                                 int64_t drop_position = -1;
337                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
338                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
339                                 Track *hi_track = mwindow->session->track_highlighted;
340
341 // Insert shared plugin in source
342 // Move source to different location
343                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
344 //printf("TrackCanvas::drag_stop 6\n");
345                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
346                                         if( drop_position < 0 ) {
347                                                 result = 1;
348                                                 break;          // Do not do anything
349                                         }
350
351                                         Track *track = mwindow->session->track_highlighted;
352                                         drop_position = track->frame_align(drop_position, 0);
353                                         mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
354                                         result = 1;
355                                 }
356                                 else if( hi_track ) {
357 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
358                                         Edit *hi_edit = mwindow->session->edit_highlighted;
359                                         drop_position = hi_edit ? hi_edit->startproject : 0;
360                                         if( drop_position < 0 ) {
361                                                 result = 1;
362                                                 break;          // Do not do anything
363                                         }
364
365                                         Track *track = mwindow->session->track_highlighted;
366                                         drop_position = track->frame_align(drop_position, 0);
367                                         mwindow->move_effect(drag_plugin, hi_track, drop_position);
368                                         result = 1;
369                                 }
370                         }
371                         break;
372
373                 case DRAG_AEFFECT:
374                 case DRAG_VEFFECT:
375                         if( mwindow->session->track_highlighted &&
376                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
377                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
378                              (mwindow->session->current_operation == DRAG_VEFFECT &&
379                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
380 // Drop all the effects
381                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
382                                 Track *track = mwindow->session->track_highlighted;
383                                 double start = 0;
384                                 double length = track->get_length();
385
386                                 if(mwindow->session->plugin_highlighted) {
387                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
388                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
389                                         if(length <= 0) length = track->get_length();
390                                 }
391                                 else if(mwindow->session->pluginset_highlighted) {
392                                                 start = track->from_units(plugin_set->length());
393                                         length = track->get_length() - start;
394                                         if(length <= 0) length = track->get_length();
395                                 }
396                                 else if(mwindow->edl->local_session->get_selectionend() >
397                                         mwindow->edl->local_session->get_selectionstart()) {
398                                         start = mwindow->edl->local_session->get_selectionstart();
399                                         length = mwindow->edl->local_session->get_selectionend() -
400                                                 mwindow->edl->local_session->get_selectionstart();
401                                 }
402 // Move to a point between two edits
403                                 else if(mwindow->session->edit_highlighted) {
404                                         start = mwindow->session->track_highlighted->from_units(
405                                                 mwindow->session->edit_highlighted->startproject);
406                                         length = mwindow->session->track_highlighted->from_units(
407                                                 mwindow->session->edit_highlighted->length);
408                                 }
409                                 start = mwindow->edl->align_to_frame(start, 0);
410                                 mwindow->insert_effects_canvas(start, length);
411                                 *redraw = 1;
412                         }
413                         if( mwindow->session->track_highlighted )
414                                 result = 1;  // we have to cleanup
415                         break;
416
417                 case DRAG_ASSET:
418                         if(mwindow->session->track_highlighted) {
419                                 double asset_duration = 0;
420                                 int64_t asset_length_units = 0;
421
422                                 if(mwindow->session->current_operation == DRAG_ASSET &&
423                                         mwindow->session->drag_assets->total) {
424                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
425                                         // we use video if we are over video and audio if we are over audio
426                                         if( indexable->have_video() &&
427                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
428                                                 // Images have length -1
429                                                 int64_t video_length = indexable->get_video_frames();
430                                                 if (video_length < 0) {
431                                                         if(mwindow->edl->session->si_useduration)
432                                                                 video_length = mwindow->edl->session->si_duration;
433                                                         else
434                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ;
435                                                 }
436                                                 asset_duration = video_length / indexable->get_frame_rate();
437                                         }
438                                         else if( indexable->have_audio() &&
439                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
440                                                 int64_t audio_length = indexable->get_audio_samples();
441                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
442                                         }
443                                         else {
444                                                 result = 1;
445                                                 break;  // Do not do anything
446                                         }
447                                 }
448                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
449                                          mwindow->session->drag_clips->total ) {
450                                         EDL *clip = mwindow->session->drag_clips->values[0];
451                                         asset_duration = clip->tracks->total_length();
452                                 }
453                                 else {
454                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
455                                 }
456
457                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
458                                 int64_t drop_position = drop_edit_position (&insertion, NULL, asset_length_units);
459                                 if( drop_position < 0 ) {
460                                         result = 1;
461                                         break;          // Do not do anything
462                                 }
463
464                                 Track *track = mwindow->session->track_highlighted;
465                                 double track_position = track->from_units(drop_position);
466                                 track_position = mwindow->edl->align_to_frame(track_position, 0);
467
468 //                              if (!insertion) {
469 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
470 //                                      // Unfortunately, this is _a lot_ of work to do right
471 //                                      printf("Problematic insertion\n");
472 //                                      mwindow->edl->tracks->clear(track_position,
473 //                                              track_position + asset_duration, 0);
474 //                              }
475                                 mwindow->paste_assets(track_position, track, !insertion);
476                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
477                         }
478                         break;
479
480                 case DRAG_EDIT:
481                         mwindow->session->current_operation = NO_OPERATION;
482                         if(mwindow->session->track_highlighted) {
483                                 if( mwindow->session->track_highlighted->data_type ==
484                                         mwindow->session->drag_edit->track->data_type) {
485                                         int64_t drop_position = drop_edit_position(&insertion,
486                                                         mwindow->session->drag_edit,
487                                                         mwindow->session->drag_edit->length);
488                                         if( drop_position < 0 ) {
489                                                 result = 1;
490                                                 break;          // Do not do anything
491                                         }
492                                         Track *track = mwindow->session->track_highlighted;
493                                         double track_position = track->from_units(drop_position);
494                                         track_position = mwindow->edl->align_to_frame(track_position, 0);
495                                         mwindow->move_edits(mwindow->session->drag_edits,
496                                                         track, track_position, insertion);
497                                 }
498
499                                 result = 1;
500                         }
501                         break;
502                 case DRAG_GROUP:
503                         mwindow->session->current_operation = NO_OPERATION;
504                         EDL *drag_group = mwindow->session->drag_group;
505                         if( drag_group ) {
506                                 Track *drop_track = mwindow->session->track_highlighted;
507                                 Track *drag_track = mwindow->session->drag_group_first_track;
508                                 Edit *drag_edit = mwindow->session->drag_group_edit;
509                                 Track *edit_track = drag_edit ? drag_edit->track : 0;
510                                 while( drop_track && edit_track ) {
511                                         if( edit_track == drag_track ) break;
512                                         edit_track = edit_track->previous;
513                                         drop_track = drop_track->previous;
514                                 }
515                                 if( drop_track ) {
516                                         double cur_pos = mwindow->session->drag_group_position;
517                                         double new_pos = mwindow->edl->get_cursor_position(cursor_x, pane->number);
518                                         new_pos -= mwindow->session->drag_position - cur_pos;
519                                         new_pos = mwindow->edl->align_to_frame(new_pos, 0);
520                                         double drop_position = new_pos;
521                                         int ret = test_track_group(drag_group, drop_track, new_pos);
522                                         if( !ret && new_pos != drop_position ) {
523                                                 drop_position = new_pos;
524                                                 ret = test_track_group(drag_group, drop_track, new_pos);
525                                         }
526                                         if( ret >= 0 )
527                                                 mwindow->move_group(drag_group, drop_track, drop_position,
528                                                         ret > 0 ? !shift_down() : shift_down());
529                                         drag_group->remove_user();
530                                         mwindow->session->drag_group = 0;
531                                 }
532                         }
533                         result = 1;
534                         break;
535                 }
536         }
537
538         return result;
539 }
540
541 int TrackCanvas::drag_start_event()
542 {
543         int result = 0;
544         int redraw = 0;
545         int rerender = 0;
546         int new_cursor, update_cursor;
547
548         if( mwindow->session->current_operation == GROUP_TOGGLE )
549                 mwindow->session->current_operation = NO_OPERATION;
550         else if( mwindow->session->current_operation != NO_OPERATION )
551                 return 0;
552
553         if(is_event_win()) {
554                 if(do_plugins(get_drag_x(), get_drag_y(),
555                                 1, 0, redraw, rerender)) {
556                         result = 1;
557                 }
558                 else if(do_edits(get_drag_x(), get_drag_y(),
559                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
560                         result = 1;
561                 }
562         }
563
564         return result;
565 }
566
567 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
568 {
569         // get the canvas/track position
570         Track *track = mwindow->session->track_highlighted;
571         int cursor_x = get_relative_cursor_x();
572         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
573         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
574         double position = mwindow->edl->align_to_frame(cur_pos, 1);
575         if( position <= 0 ) {
576                 *is_insertion = 1;
577                 return 0;
578         }
579         double cursor_position = position;
580         int64_t drop_position = track->to_units(cursor_position, 1);
581         if( moved_edit ) { // relative cursor position depends upon drop point
582                 double moved_edit_start = moved_edit->track->from_units(moved_edit->startproject);
583                 position -= mwindow->session->drag_position - moved_edit_start;
584         }
585         int64_t edit_position = track->to_units(position, 1);
586         int64_t grab_position = edit_position;
587         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
588                 grab_position -= moved_edit_length / 2;
589         Edit *last_edit = track->edits->last;
590         if( !last_edit || edit_position >= (last_edit->startproject+last_edit->length) ) {
591                 *is_insertion = 0;
592                 return edit_position;
593         }
594
595         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
596         Edit *next_edit = track->edits->first;
597         while( next_edit ) {
598                 Edit *edit = next_edit;  next_edit = (Edit *)edit->next;
599                 int64_t edit_start = edit->startproject;
600                 int64_t edit_end = edit_start + edit->length;
601                 double edit_start_pos = edit->track->from_units(edit_start);
602                 if( (fabs(edit_start_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
603                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
604                         return edit_start;
605                 }
606                 double edit_end_pos = edit->track->from_units(edit_end);
607                 if( (fabs(edit_end_pos-cursor_position)*zoom_scale) < HANDLE_W ) {
608                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
609                         return edit_end;
610                 }
611                 if( edit != moved_edit && !edit->silence() )
612                         drop_start = edit_end; // reset drop zone
613                 if( next_edit ) {
614                         if( next_edit == moved_edit || next_edit->silence() ) continue;
615                         drop_end = edit_end;
616                 }
617                 else
618                         drop_end = INT64_MAX;
619                 if( edit_position >= drop_start &&
620                     edit_position+moved_edit_length < drop_end ) {
621                         *is_insertion = 0; // fits in the zone
622                         return edit_position;
623                 }
624                 if( drop_position < drop_end ) { // drop in the zone
625                         if( (drop_end - drop_start) >= moved_edit_length ) {
626                                 *is_insertion = 0; // fits in the zone, but over the edge
627                                 int64_t dx0 = llabs(drop_position - drop_start);
628                                 int64_t dx1 = llabs(drop_position - drop_end);
629                                 return dx0 < dx1 ? drop_start : drop_end - moved_edit_length;
630                         }
631                         *is_insertion = 1;
632                         int64_t edit_center = (edit_start + edit_end) / 2;
633                         return position < edit_center ? drop_start : drop_end;
634                 }
635         }
636
637         *is_insertion = 0;
638         return -1;
639 }
640
641 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
642 {
643         // get the canvas/track position
644         Track *track = plugin_set->track;
645         double moved_plugin_length = moved_plugin->track->from_units(moved_plugin->length);
646         int64_t track_plugin_length = track->to_units(moved_plugin_length, 0);
647         int cursor_x = get_relative_cursor_x();
648         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
649         double cur_pos = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
650         double position = mwindow->edl->align_to_frame(cur_pos, 1);
651         if( position <= 0 ) return 0;
652         int64_t drop_position = track->to_units(position, 1);
653         Plugin *last_plugin = (Plugin *)plugin_set->last;
654         if( !last_plugin ) return drop_position;
655         double plugin_set_end = last_plugin->track->from_units(last_plugin->startproject+last_plugin->length);
656         if( position >= plugin_set_end ) return drop_position;
657         double moved_plugin_start = moved_plugin->track->from_units(moved_plugin->startproject);
658         position -= mwindow->session->drag_position - moved_plugin_start;
659         int64_t plugin_position = track->to_units(position, 1);
660
661         int64_t drop_start = 0, drop_end = 0;  // drop zone boundries
662         Plugin *next_plugin = (Plugin *)plugin_set->first;
663         while( next_plugin ) {
664                 Plugin *plugin = next_plugin;  next_plugin = (Plugin *)plugin->next;
665                 int64_t plugin_start = plugin->startproject;
666                 int64_t plugin_end = plugin_start + plugin->length;
667                 double plugin_end_pos = plugin->track->from_units(plugin_end);
668                 int64_t track_plugin_end = track->to_units(plugin_end_pos, 0);
669                 if( plugin != moved_plugin && !plugin->silence() )
670                         drop_start = track_plugin_end;
671                 if( next_plugin ) {
672                         if( next_plugin == moved_plugin || next_plugin->silence() ) continue;
673                         drop_end = track_plugin_end;
674                 }
675                 else
676                         drop_end = INT64_MAX;
677                 if( plugin_position >= drop_start && // fits in the zone
678                     plugin_position+track_plugin_length < drop_end ) {
679                         return plugin_position;
680                 }
681                 if( drop_position < drop_end ) { // drop in the zone
682                         if( (drop_end - drop_start) >= track_plugin_length ) {
683                                 int64_t dx0 = llabs(drop_position - drop_start);
684                                 int64_t dx1 = llabs(drop_position - drop_end);
685                                 return dx0 < dx1 ? drop_start : drop_end - track_plugin_length;
686                         }
687                 }
688         }
689
690         return -1;
691 }
692
693 void TrackCanvas::draw(int mode, int hide_cursor)
694 {
695         const int debug = 0;
696
697 // Swap pixmap layers
698         if(get_w() != background_pixmap->get_w() ||
699                 get_h() != background_pixmap->get_h())
700         {
701                 delete background_pixmap;
702                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
703         }
704
705 // Cursor disappears after resize when this is called.
706 // Cursor doesn't redraw after editing when this isn't called.
707         if(pane->cursor && hide_cursor) pane->cursor->hide();
708         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
709
710         if(debug) PRINT_TRACE
711         draw_resources(mode);
712
713         if(debug) PRINT_TRACE
714         draw_overlays();
715         if(debug) PRINT_TRACE
716 }
717
718 void TrackCanvas::update_cursor(int flush)
719 {
720         if( arrow_mode() )
721                 set_cursor(ARROW_CURSOR, 0, flush);
722         else if( ibeam_mode() )
723                 set_cursor(IBEAM_CURSOR, 0, flush);
724 }
725
726
727 void TrackCanvas::test_timer()
728 {
729         if( resource_timer->get_difference() > 1000 && !hourglass_enabled ) {
730                 start_hourglass();
731                 hourglass_enabled = 1;
732         }
733 }
734
735
736 void TrackCanvas::draw_indexes(Indexable *indexable)
737 {
738         IndexState *index_state = indexable->index_state;
739 // Don't redraw raw samples
740         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
741                 return;
742         draw_resources(NORMAL_DRAW, 1, indexable);
743         draw_overlays();
744         flash(0);
745 }
746
747 void TrackCanvas::draw_resources(int mode,
748         int indexes_only,
749         Indexable *indexable)
750 {
751         const int debug = 0;
752
753         if(debug) PRINT_TRACE
754
755 // can't stop thread here, because this is called for every pane
756 //      if(mode != IGNORE_THREAD && !indexes_only)
757 //              gui->resource_thread->stop_draw(!indexes_only);
758
759         if(mode != IGNORE_THREAD &&
760                 !indexes_only &&
761                 !gui->resource_thread->interrupted)
762         {
763                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
764                         __LINE__);
765
766                 BC_Signals::dump_stack();
767         }
768
769         if(debug) PRINT_TRACE
770
771         resource_timer->update();
772
773 // Age resource pixmaps for deletion
774         if(!indexes_only)
775                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
776                         gui->resource_pixmaps.values[i]->visible--;
777
778         if(mode == FORCE_REDRAW)
779                 gui->resource_pixmaps.remove_all_objects();
780
781         if(debug) PRINT_TRACE
782
783 // Search every edit
784         for(Track *current = mwindow->edl->tracks->first;
785                 current;
786                 current = NEXT)
787         {
788                 if(debug) PRINT_TRACE
789                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
790                 {
791                         if(debug) PRINT_TRACE
792                         if( current->data_type != TRACK_SUBTITLE )
793                                 if(!edit->asset && !edit->nested_edl) continue;
794                         if(indexes_only)
795                         {
796                                 if(edit->track->data_type != TRACK_AUDIO) continue;
797
798                                 if(edit->nested_edl &&
799                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
800
801                                 if(edit->asset &&
802                                         strcmp(indexable->path, edit->asset->path)) continue;
803                         }
804
805                         if(debug) PRINT_TRACE
806
807                         int64_t edit_x, edit_y, edit_w, edit_h;
808                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
809
810 // Edit is visible
811                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
812                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
813                         {
814                                 int64_t pixmap_x, pixmap_w, pixmap_h;
815                                 if(debug) PRINT_TRACE
816
817 // Search for existing pixmap containing edit
818                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
819                                 {
820                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
821 // Same pointer can be different edit if editing took place
822                                         if(pixmap->edit_id == edit->id &&
823                                                 pixmap->pane_number == pane->number)
824                                         {
825                                                 pixmap->visible = 1;
826                                                 break;
827                                         }
828                                 }
829                                 if(debug) PRINT_TRACE
830
831 // Get new size, offset of pixmap needed
832                                 get_pixmap_size(edit,
833                                         edit_x,
834                                         edit_w,
835                                         pixmap_x,
836                                         pixmap_w,
837                                         pixmap_h);
838                                 if(debug) PRINT_TRACE
839
840 // Draw new data
841                                 if(pixmap_w && pixmap_h)
842                                 {
843 // Create pixmap if it doesn't exist
844                                         ResourcePixmap* pixmap = create_pixmap(edit, edit_x,
845                                                 pixmap_x, pixmap_w, pixmap_h);
846 // Resize it if it's bigger
847                                         if( pixmap_w > pixmap->pixmap_w ||
848                                             pixmap_h > pixmap->pixmap_h)
849                                                 pixmap->resize(pixmap_w, pixmap_h);
850                                         pixmap->update_settings(edit, edit_x, edit_w,
851                                                 pixmap_x, pixmap_w, pixmap_h);
852 // Draw data
853                                         if( current->show_assets() )
854                                                 pixmap->draw_data(this,
855                                                         edit, edit_x, edit_w,
856                                                         pixmap_x, pixmap_w, pixmap_h,
857                                                         mode, indexes_only);
858                                         else {
859                                                 set_bg_color(BLACK);
860                                                 clear_box(0,0, pixmap_w,pixmap_h, pixmap);
861                                         }
862 // Draw title
863                                         if( current->show_titles() )
864                                                 pixmap->draw_title(this,
865                                                         edit, edit_x, edit_w,
866                                                         pixmap_x, pixmap_w);
867 // Resize it if it's smaller
868                                         if(pixmap_w < pixmap->pixmap_w ||
869                                                 pixmap_h < pixmap->pixmap_h)
870                                                 pixmap->resize(pixmap_w, pixmap_h);
871
872 // Copy pixmap to background canvas
873                                         background_pixmap->draw_pixmap(pixmap,
874                                                 pixmap->pixmap_x,
875                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
876                                                 pixmap->pixmap_w,
877                                                 edit_h);
878                                 }
879                                 if(debug) PRINT_TRACE
880
881                         }
882                 }
883         }
884
885
886 // Delete unused pixmaps
887         if(debug) PRINT_TRACE
888         if(!indexes_only)
889                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
890                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
891                         {
892 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
893                                 delete gui->resource_pixmaps.values[i];
894                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
895                         }
896         if(debug) PRINT_TRACE
897
898         if(hourglass_enabled)
899         {
900                 stop_hourglass();
901                 hourglass_enabled = 0;
902         }
903         if(debug) PRINT_TRACE
904
905 // can't stop thread here, because this is called for every pane
906 //      if(mode != IGNORE_THREAD && !indexes_only)
907 //              gui->resource_thread->start_draw();
908         if(debug) PRINT_TRACE
909
910
911 }
912
913 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
914         int64_t edit_x,
915         int64_t pixmap_x,
916         int64_t pixmap_w,
917         int64_t pixmap_h)
918 {
919         ResourcePixmap *result = 0;
920
921         for(int i = 0; i < gui->resource_pixmaps.total; i++)
922         {
923 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
924                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
925                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
926                 {
927                         result = gui->resource_pixmaps.values[i];
928                         break;
929                 }
930         }
931
932         if(!result)
933         {
934 //SET_TRACE
935                 result = new ResourcePixmap(mwindow,
936                         gui,
937                         edit,
938                         pane->number,
939                         pixmap_w,
940                         pixmap_h);
941 //SET_TRACE
942                 gui->resource_pixmaps.append(result);
943         }
944
945 //      result->resize(pixmap_w, pixmap_h);
946         return result;
947 }
948
949 void TrackCanvas::get_pixmap_size(Edit *edit,
950         int64_t edit_x,
951         int64_t edit_w,
952         int64_t &pixmap_x,
953         int64_t &pixmap_w,
954         int64_t &pixmap_h)
955 {
956
957 // Align x on frame boundaries
958
959
960 //      switch(edit->edits->track->data_type)
961 //      {
962 //              case TRACK_AUDIO:
963
964                         pixmap_x = edit_x;
965                         pixmap_w = edit_w;
966                         if(pixmap_x < 0)
967                         {
968                                 pixmap_w -= -edit_x;
969                                 pixmap_x = 0;
970                         }
971
972                         if(pixmap_x + pixmap_w > get_w())
973                         {
974                                 pixmap_w = get_w() - pixmap_x;
975                         }
976
977 //                      break;
978 //
979 //              case TRACK_VIDEO:
980 //              {
981 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
982 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
983 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
984 //                      int64_t pixmap_x1 = edit_x;
985 //                      int64_t pixmap_x2 = edit_x + edit_w;
986 //
987 //                      if(pixmap_x1 < 0)
988 //                      {
989 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
990 //                                      pixel_increment +
991 //                                      edit_x;
992 //                      }
993 //
994 //                      if(pixmap_x2 > get_w())
995 //                      {
996 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
997 //                                      pixel_increment +
998 //                                      edit_x;
999 //                      }
1000 //                      pixmap_x = pixmap_x1;
1001 //                      pixmap_w = pixmap_x2 - pixmap_x1;
1002 //                      break;
1003 //              }
1004 //      }
1005
1006         pixmap_h = mwindow->edl->local_session->zoom_track;
1007         Track *track = edit->edits->track;
1008         if( track->show_titles() )
1009                 pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
1010 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
1011 }
1012
1013 void TrackCanvas::edit_dimensions(Edit *edit,
1014         int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1015 {
1016         x = Units::round(edit->track->from_units(edit->startproject) *
1017                         mwindow->edl->session->sample_rate /
1018                         mwindow->edl->local_session->zoom_sample -
1019                         mwindow->edl->local_session->view_start[pane->number]);
1020
1021         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1022
1023 // Method for calculating w so when edits are together we never get off by one error due to rounding
1024         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
1025                         mwindow->edl->session->sample_rate /
1026                         mwindow->edl->local_session->zoom_sample -
1027                         mwindow->edl->local_session->view_start[pane->number]);
1028         w = x_next - x;
1029
1030         int edit_h = 0;
1031         if( edit->track->show_titles() )
1032                 edit_h += mwindow->theme->get_image("title_bg_data")->get_h();
1033         if( edit->track->show_assets() )
1034                 edit_h += resource_h();
1035         h = edit_h;
1036 }
1037
1038 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1039 {
1040         x = 0;
1041         w = get_w();
1042         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1043         h = track->vertical_span(mwindow->theme);
1044 }
1045
1046
1047 void TrackCanvas::draw_paste_destination()
1048 {
1049         //int cursor_x = get_relative_cursor_x();
1050         //int cursor_y = get_relative_cursor_y();
1051         int current_atrack = 0;
1052         int current_vtrack = 0;
1053         int current_aedit = 0;
1054         int current_vedit = 0;
1055         int64_t w = 0;
1056         int64_t x;
1057         double position;
1058         int insertion  = 0;
1059
1060 //if(pane->number == BOTTOM_RIGHT_PANE)
1061 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
1062
1063         if((mwindow->session->current_operation == DRAG_ASSET &&
1064                         (mwindow->session->drag_assets->total ||
1065                         mwindow->session->drag_clips->total)) ||
1066                 (mwindow->session->current_operation == DRAG_EDIT &&
1067                         mwindow->session->drag_edits->total)) {
1068                 Indexable *indexable = 0;
1069                 EDL *clip = 0;
1070                 //int draw_box = 0;
1071
1072                 if(mwindow->session->current_operation == DRAG_ASSET &&
1073                         mwindow->session->drag_assets->size())
1074                         indexable = mwindow->session->drag_assets->get(0);
1075
1076                 if(mwindow->session->current_operation == DRAG_ASSET &&
1077                         mwindow->session->drag_clips->size())
1078                         clip = mwindow->session->drag_clips->get(0);
1079
1080                 int has_audio = 0, has_video = 0;
1081                 double paste_audio_length = 0, paste_video_length = 0;
1082                 double paste_audio_position = -1, paste_video_position = -1;
1083
1084                 if( indexable ) {
1085                         has_audio = indexable->have_audio();
1086                         paste_audio_length = !has_audio ? 0 :
1087                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1088                         has_video = indexable->have_video();
1089                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1090                         // Images have length -1
1091                         if( asset && asset->video_data && asset->video_length < 0 ) {
1092                                 paste_video_length = mwindow->edl->session->si_useduration ?
1093                                         mwindow->edl->session->si_duration / asset->frame_rate :
1094                                         1.0 / asset->frame_rate ;  // 1 frame
1095                         }
1096                         else
1097                                 paste_video_length = !has_video ? 0 :
1098                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1099                 }
1100
1101                 if( clip ) {
1102                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1103                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1104                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1105                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1106                 }
1107
1108 // 'Align cursor on frame' lengths calculations
1109                 if( mwindow->edl->session->cursor_on_frames ) {
1110                         double fps = mwindow->edl->session->frame_rate;
1111                         double aud = floor(paste_audio_length * fps) / fps;
1112                         double vid = floor(paste_video_length * fps) / fps;
1113                         double length = has_video && has_audio ?
1114                                         aud < vid ? aud : vid :
1115                                 has_video ? vid :
1116                                 has_audio ? aud : 0;
1117                         paste_video_length = paste_audio_length = length;
1118                 }
1119
1120                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1121                         int64_t length = 0;
1122                         switch( mwindow->session->track_highlighted->data_type ) {
1123                         case TRACK_VIDEO: length = paste_video_length;  break;
1124                         case TRACK_AUDIO: length = paste_audio_length;  break;
1125                         }
1126                         int64_t asset_length = mwindow->session->track_highlighted->
1127                                 to_units(length, 1);
1128                         paste_audio_position = mwindow->session->track_highlighted->
1129                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1130                 }
1131                 if( has_video ) {
1132                         int64_t asset_length = mwindow->session->track_highlighted->
1133                                 to_units(paste_video_length, 1);
1134                         paste_video_position = mwindow->session->track_highlighted->
1135                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1136                 }
1137
1138 // Get destination track
1139                 for(Track *dest = mwindow->session->track_highlighted;
1140                         dest;
1141                         dest = dest->next) {
1142                         if(dest->record) {
1143 // Get source width in pixels
1144                                 w = -1;
1145 // Use start of highlighted edit
1146                                 if(mwindow->session->edit_highlighted) {
1147                                         position = mwindow->session->track_highlighted->from_units(
1148                                                 mwindow->session->edit_highlighted->startproject);
1149                                 }
1150                                 else {
1151 // Use end of highlighted track, disregarding effects
1152                                         position = mwindow->session->track_highlighted->from_units(
1153                                                 mwindow->session->track_highlighted->edits->length());
1154                                 }
1155
1156 // Get the x coordinate
1157                                 x = Units::to_int64(position *
1158                                         mwindow->edl->session->sample_rate /
1159                                         mwindow->edl->local_session->zoom_sample) -
1160                                         mwindow->edl->local_session->view_start[pane->number];
1161
1162                                 double paste_position = -1.;
1163                                 if(dest->data_type == TRACK_AUDIO) {
1164                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1165 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1166                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1167                                                         indexable->get_sample_rate() *
1168                                                         mwindow->edl->session->sample_rate /
1169                                                         mwindow->edl->local_session->zoom_sample);
1170                                                 paste_position = paste_audio_position;
1171                                         }
1172                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1173                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1174                                                         mwindow->edl->session->sample_rate /
1175                                                         mwindow->edl->local_session->zoom_sample);
1176                                                 paste_position = paste_audio_position;
1177 //printf("draw_paste_destination %d\n", x);
1178                                         }
1179                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1180                                                 current_aedit < mwindow->session->drag_edits->total) {
1181                                                 Edit *edit;
1182                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1183                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1184                                                         current_aedit++;
1185
1186                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1187                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1188                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1189                                                         paste_position = mwindow->session->track_highlighted->
1190                                                                 from_units(drop_edit_position(&insertion,
1191                                                                         mwindow->session->drag_edit,
1192                                                                         mwindow->session->drag_edit->length));
1193                                                         current_aedit++;
1194                                                 }
1195                                         }
1196                                         if( paste_position >= 0 ) {
1197                                                 position = paste_position;
1198                                                 current_atrack++;
1199                                                 //draw_box = 1;
1200                                         }
1201                                         else
1202                                                 w = -1;
1203                                 }
1204                                 else if(dest->data_type == TRACK_VIDEO) {
1205 //printf("draw_paste_destination 1\n");
1206                                         if(indexable && current_vtrack < indexable->get_video_layers())
1207                                         {
1208                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1209                                                         indexable->get_frame_rate() *
1210                                                         mwindow->edl->session->sample_rate /
1211                                                         mwindow->edl->local_session->zoom_sample);
1212                                                 paste_position = paste_video_position;
1213                                         }
1214                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1215                                                 w = Units::to_int64(clip->tracks->total_length() *
1216                                                         mwindow->edl->session->sample_rate /
1217                                                         mwindow->edl->local_session->zoom_sample);
1218                                                 paste_position = paste_video_position;
1219                                         }
1220                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1221                                                 current_vedit < mwindow->session->drag_edits->total) {
1222                                                 Edit *edit;
1223                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1224                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1225                                                         current_vedit++;
1226
1227                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1228                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1229                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1230                                                                 mwindow->edl->session->sample_rate /
1231                                                                 mwindow->edl->local_session->zoom_sample);
1232                                                         paste_position = mwindow->session->track_highlighted->
1233                                                                 from_units(drop_edit_position(&insertion,
1234                                                                         mwindow->session->drag_edit,
1235                                                                         mwindow->session->drag_edit->length));
1236                                                         current_vedit++;
1237                                                 }
1238                                         }
1239                                         if( paste_position >= 0 ) {
1240                                                 position = paste_position;
1241                                                 current_vtrack++;
1242                                                 //draw_box = 1;
1243                                         }
1244                                         else
1245                                                 w = -1;
1246                                 }
1247
1248                                 if(w >= 0) {
1249 // Get the x coordinate
1250                                         x = Units::to_int64(position *
1251                                                 mwindow->edl->session->sample_rate /
1252                                                 mwindow->edl->local_session->zoom_sample) -
1253                                                 mwindow->edl->local_session->view_start[pane->number];
1254                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1255                                         int h = dest->vertical_span(mwindow->theme);
1256
1257 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1258                                         if(x < -BC_INFINITY) {
1259                                                 w -= -BC_INFINITY - x;
1260                                                 x += -BC_INFINITY - x;
1261                                         }
1262                                         w = MIN(65535, w);
1263 // if(pane->number == TOP_RIGHT_PANE)
1264 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1265 // __LINE__, x, y, w, h);
1266                                         if (insertion)
1267                                                 draw_highlight_insertion(x, y, w, h);
1268                                         else
1269                                                 draw_highlight_rectangle(x, y, w, h);
1270                                 }
1271                         }
1272                 }
1273         }
1274 }
1275
1276 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1277 {
1278         x = Units::round(plugin->track->from_units(plugin->startproject) *
1279                 mwindow->edl->session->sample_rate /
1280                 mwindow->edl->local_session->zoom_sample -
1281                 mwindow->edl->local_session->view_start[pane->number]);
1282         w = Units::round(plugin->track->from_units(plugin->length) *
1283                 mwindow->edl->session->sample_rate /
1284                 mwindow->edl->local_session->zoom_sample);
1285         y = plugin->track->y_pixel
1286                 - mwindow->edl->local_session->track_start[pane->number];
1287         if( plugin->track->show_titles() )
1288                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1289         if( plugin->track->show_assets() )
1290                 y += resource_h();
1291         y += plugin->plugin_set->get_number() *
1292                         mwindow->theme->get_image("plugin_bg_data")->get_h();
1293         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1294 }
1295
1296 int TrackCanvas::resource_h()
1297 {
1298         return mwindow->edl->local_session->zoom_track;
1299 }
1300
1301 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1302 {
1303
1304 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1305 // just draw arrows, so user has indication that something is there
1306 // FIXME: get better colors
1307
1308         if (x + w <= 0)
1309         {
1310                 draw_triangle_left(0, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1311                 return;
1312         } else
1313         if (x >= get_w())
1314         {
1315                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1316                 return;
1317         }
1318
1319 // Fix bug in heroines & cvs version as of 22.8.2005:
1320 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1321         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1322         if(x < -10)
1323         {
1324                 w += x - -10;
1325                 x = -10;
1326         }
1327
1328         if(y < -10)
1329         {
1330                 h += y - -10;
1331                 y = -10;
1332         }
1333
1334         w = MIN(w, get_w() + 20);
1335         h = MIN(h, get_h() + 20);
1336         if(w > 0 && h > 0)
1337         {
1338                 set_color(mwindow->preferences->highlight_inverse);
1339                 set_inverse();
1340                 //draw_rectangle(x, y, w, h);
1341                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1342                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1343                 set_opaque();
1344                 draw_rectangle(x, y, w, h);
1345         }
1346 //if(pane->number == TOP_RIGHT_PANE)
1347 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1348 }
1349
1350 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1351 {
1352
1353 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1354 // just draw arrows, so user has indication that something is there
1355 // FIXME: get better colors
1356
1357
1358
1359         int h1 = h / 8;
1360         int h2 = h / 4;
1361
1362         set_inverse();
1363
1364 /* these don't look so good
1365
1366         draw_line(x, y, x, y+h);
1367         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1368         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1369         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1370         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1371 */
1372         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1373         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1374
1375 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1376         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1377         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1378         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1379 */
1380         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1381         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1382
1383 // draw the box centred around x
1384         x -= w / 2;
1385 // Fix bug in heroines & cvs version as of 22.8.2005:
1386 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1387         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1388         if(x < -10)
1389         {
1390                 w += x - -10;
1391                 x = -10;
1392         }
1393         if(y < -10)
1394         {
1395                 h += y - -10;
1396                 y = -10;
1397         }
1398         w = MIN(w, get_w() + 20);
1399         h = MIN(h, get_h() + 20);
1400         set_color(mwindow->preferences->highlight_inverse);
1401         set_inverse();
1402         draw_rectangle(x, y, w, h);
1403         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1404         set_opaque();
1405 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1406 }
1407
1408 void TrackCanvas::draw_playback_cursor()
1409 {
1410 // Called before playback_cursor exists
1411 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1412 //      {
1413 //              mwindow->playback_cursor->visible = 0;
1414 //              mwindow->playback_cursor->draw();
1415 //      }
1416 }
1417
1418 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1419 {
1420         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1421         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1422
1423         edit_dimensions(edit, x, y, w, h);
1424
1425         if( edit->track->show_titles() )
1426                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1427
1428         if(side == EDIT_OUT)
1429                 x += w - handle_w;
1430
1431         h = handle_h;
1432         w = handle_w;
1433 }
1434
1435 void TrackCanvas::get_transition_coords(Edit *edit,
1436                 int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1437 {
1438         int transition_w = 30, transition_h = 30;
1439         int has_titles = edit->track->show_titles();
1440         int has_assets = edit->track->show_assets();
1441         double title_bg_h = mwindow->theme->get_image("title_bg_data")->get_h();
1442         double asset_h = resource_h();
1443         double ys = has_assets ? asset_h : has_titles ? title_bg_h : 0;
1444         double dy = has_titles ?
1445                 ( has_assets ? title_bg_h + asset_h/2 : title_bg_h/2 ) :
1446                 ( has_assets ? asset_h/2 : 0) ;
1447         double title_h = mwindow->theme->title_h;
1448         if( dy < title_h / 2 ) { ys = title_h;  dy = ys / 2; }
1449         y += dy;
1450
1451         x -= transition_w / 2;
1452         y -= transition_h / 2;
1453         w = transition_w;
1454         h = transition_h;
1455 }
1456
1457 void TrackCanvas::draw_highlighting()
1458 {
1459         int64_t x, y, w, h;
1460         int draw_box = 0;
1461
1462         switch(mwindow->session->current_operation)
1463         {
1464                 case DRAG_ATRANSITION:
1465                 case DRAG_VTRANSITION:
1466 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1467 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1468                         if(mwindow->session->edit_highlighted) {
1469                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1470                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1471                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1472                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1473                                         edit_dimensions(mwindow->session->edit_highlighted,
1474                                                 x, y, w, h);
1475                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1476                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1477                                                 draw_box = 1;
1478                                                 get_transition_coords(mwindow->session->edit_highlighted,
1479                                                         x, y, w, h);
1480                                         }
1481                                 }
1482                         }
1483                         break;
1484
1485 // Dragging a new effect from the Resource window
1486                 case DRAG_AEFFECT:
1487                 case DRAG_VEFFECT:
1488                         if(mwindow->session->track_highlighted &&
1489                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1490                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1491                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1492                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1493 // Put it before another plugin
1494                                 if(mwindow->session->plugin_highlighted) {
1495                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1496                                                 x, y, w, h);
1497 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1498                                 }
1499 // Put it after a plugin set
1500                                 else if( mwindow->session->pluginset_highlighted &&
1501                                          mwindow->session->pluginset_highlighted->last ) {
1502                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1503                                                 x, y, w, h);
1504 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1505                                         int64_t track_x, track_y, track_w, track_h;
1506                                         track_dimensions(mwindow->session->track_highlighted,
1507                                                 track_x, track_y, track_w, track_h);
1508
1509                                         x += w;
1510                                         w = Units::round(
1511                                                         mwindow->session->track_highlighted->get_length() *
1512                                                         mwindow->edl->session->sample_rate /
1513                                                         mwindow->edl->local_session->zoom_sample -
1514                                                         mwindow->edl->local_session->view_start[pane->number]) -
1515                                                 x;
1516 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1517                                         if(w <= 0) w = track_w;
1518                                 }
1519                                 else {
1520                                         track_dimensions(mwindow->session->track_highlighted,
1521                                                 x, y, w, h);
1522
1523 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1524 // Put it in a new plugin set determined by the selected range
1525                                         if(mwindow->edl->local_session->get_selectionend() >
1526                                                 mwindow->edl->local_session->get_selectionstart()) {
1527                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1528                                                         mwindow->edl->session->sample_rate /
1529                                                         mwindow->edl->local_session->zoom_sample -
1530                                                         mwindow->edl->local_session->view_start[pane->number]);
1531                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1532                                                         mwindow->edl->local_session->get_selectionstart()) *
1533                                                         mwindow->edl->session->sample_rate /
1534                                                         mwindow->edl->local_session->zoom_sample);
1535                                         }
1536 // Put it in a new plugin set determined by an edit boundary
1537                                         else if(mwindow->session->edit_highlighted) {
1538                                                 int64_t temp_y, temp_h;
1539                                                 edit_dimensions(mwindow->session->edit_highlighted,
1540                                                         x, temp_y, w, temp_h);
1541                                         }
1542 // Put it at the beginning of the track in a new plugin set
1543                                 }
1544
1545                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1546                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1547 //printf("TrackCanvas::draw_highlighting 1\n");
1548                                         draw_box = 1;
1549                                 }
1550                         }
1551                         break;
1552
1553                 case DRAG_ASSET:
1554                         if(mwindow->session->track_highlighted) {
1555 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1556
1557 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1558 //                              {
1559                                         draw_paste_destination();
1560 //                              }
1561                         }
1562                         break;
1563
1564                 case DRAG_EDIT:
1565                         if(mwindow->session->track_highlighted) {
1566 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1567 //
1568 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1569                                         draw_paste_destination();
1570 //                              }
1571                         }
1572                         break;
1573                 case DRAG_GROUP:
1574                         if( mwindow->session->track_highlighted && mwindow->session->drag_group &&
1575                             mwindow->session->drag_group_edit && mwindow->session->drag_group_first_track ) {
1576                                 Track *track = mwindow->session->track_highlighted;
1577                                 EDL *drag_group = mwindow->session->drag_group;
1578                                 Track *edit_track = mwindow->session->drag_group_edit->track;
1579                                 Track *drag_track = mwindow->session->drag_group_first_track;
1580                                 while( track && edit_track && edit_track != drag_track ) {
1581                                         edit_track = edit_track->previous;
1582                                         track = track->previous;
1583                                 }
1584                                 int cx = get_cursor_x();
1585                                 double cur_pos = mwindow->session->drag_group_position;
1586                                 double new_pos = mwindow->edl->get_cursor_position(cx, pane->number);
1587                                 new_pos -= mwindow->session->drag_position - cur_pos;
1588                                 new_pos = mwindow->edl->align_to_frame(new_pos, 0);
1589                                 double drop_position = new_pos;
1590                                 int color = GREEN;
1591                                 int ret = test_track_group(drag_group, track, new_pos);
1592                                 if( ret < 0 )
1593                                         color = ORANGE;
1594                                 else if( !ret ) {
1595                                         if( new_pos != drop_position ) {
1596                                                 double pos = new_pos;
1597                                                 pos += mwindow->session->drag_position - cur_pos;
1598                                                 cx = mwindow->edl->get_position_cursorx(pos, pane->number);
1599                                                 ret = test_track_group(drag_group, track, new_pos);
1600                                         }
1601                                         color = ret > 0 ? YELLOW : shift_down() ? RED : BLUE;
1602                                 }
1603                                 track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1604                                 int dx = cx - mwindow->session->drag_origin_x;
1605                                 int dy = y - mwindow->session->drag_origin_y;
1606                                 draw_selected_edits(mwindow->edl, dx, dy, color, -1);
1607                         }
1608                         break;
1609 // Dragging an effect from the timeline
1610                 case DRAG_AEFFECT_COPY:
1611                 case DRAG_VEFFECT_COPY:
1612                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1613                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1614                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1615                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1616                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1617
1618                                 int64_t plugin_position = -1;
1619                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1620                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1621                                 Track *hi_track = mwindow->session->track_highlighted;
1622                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1623 // Put it into a silence zone
1624                                 if( hi_plugin_set && hi_plugin_set->last &&
1625                                     hi_plugin_set->track == drag_plugin->track ) {
1626                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1627                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1628                                         hi_track = drag_plugin->track;
1629                                 }
1630                                 else if( hi_track ) {
1631 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1632                                         track_dimensions(hi_track, x, y, w, h);
1633                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1634                                 }
1635
1636                                 if( plugin_position < 0 ) break;
1637
1638 // Calculate length of plugin based on data type of track and units
1639                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1640                                                 mwindow->edl->local_session->zoom_sample;
1641                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1642                                                 mwindow->edl->local_session->view_start[pane->number];
1643                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1644
1645                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1646                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1647                                         draw_box = 1;
1648                                 }
1649                         }
1650                         break;
1651
1652                 case DRAG_PLUGINKEY:
1653                         if(mwindow->session->plugin_highlighted &&
1654                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1655                         {
1656 // Just highlight the plugin
1657                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1658
1659                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1660                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1661                                 {
1662                                         draw_box = 1;
1663                                 }
1664                         }
1665                         break;
1666
1667         }
1668
1669         if( draw_box )
1670                 draw_highlight_rectangle(x, y, w, h);
1671
1672         draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
1673 }
1674
1675 // x does not reliably draw a really big rectangle
1676 void TrackCanvas::draw_selected(int x, int y, int w, int h)
1677 {
1678         int x1 = bmax(x, 0), x2 = bmin(x+w, get_w());
1679         if( x1 > x2 ) return;
1680         int y1 = bmax(y, 0), y2 = bmin(y+h, get_h());
1681         if( y1 > y2 ) return;
1682         if( x   >= 0 && x   < get_w() ) draw_line(x,y1,   x,y2);
1683         if( x+w >= 0 && x+w < get_w() ) draw_line(x+w,y1, x+w,y2);
1684         if( y   >= 0 && y   < get_h() ) draw_line(x1,y,   x2,y);
1685         if( y+h >= 0 && y+h < get_h() ) draw_line(x1,y+h, x2,y+h);
1686 }
1687
1688 void TrackCanvas::draw_selected_edits(EDL *edl, int dx, int dy, int color0, int color1)
1689 {
1690         for( Track *track=edl->tracks->first; track; track=track->next ) {
1691                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1692                         if( !edit->is_selected ) continue;
1693                         int64_t x, y, w, h;
1694                         edit_dimensions(edit, x, y, w, h);
1695                         x += dx;  y += dy;
1696                         if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
1697                         if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
1698                         set_opaque();
1699                         int inner = color1 < 0 ? color0 : !edit->group_id ? color0 :
1700                                 mwindow->get_group_color(edit->group_id);
1701                         set_color(inner);
1702                         draw_selected(x, y, w, h);
1703                         int outer = color1 < 0 ? color0 : !edit->group_id ? color1 : inner;
1704                         set_color(outer);
1705                         draw_selected(x-1, y-1, w+2, h+2);
1706                         draw_selected(x-2, y-2, w+1, h+1);
1707                 }
1708         }
1709 }
1710
1711 void TrackCanvas::draw_plugins()
1712 {
1713         char string[BCTEXTLEN];
1714         int current_on = 0;
1715         int current_show = 0;
1716         int current_preset = 0;
1717
1718         for(int i = 0; i < plugin_on_toggles.total; i++)
1719                 plugin_on_toggles.values[i]->in_use = 0;
1720         for(int i = 0; i < plugin_show_toggles.total; i++)
1721                 plugin_show_toggles.values[i]->in_use = 0;
1722         for(int i = 0; i < preset_edit_buttons.total; i++)
1723                 plugin_show_toggles.values[i]->in_use = 0;
1724
1725
1726         for(Track *track = mwindow->edl->tracks->first;
1727                 track;
1728                 track = track->next)
1729         {
1730                 if(track->expand_view)
1731                 {
1732                         for(int i = 0; i < track->plugin_set.total; i++)
1733                         {
1734                                 PluginSet *pluginset = track->plugin_set.values[i];
1735
1736                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1737                                 {
1738                                         int64_t total_x, y, total_w, h;
1739                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1740
1741                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1742                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1743                                                 plugin->plugin_type != PLUGIN_NONE)
1744                                         {
1745                                                 int x = total_x, w = total_w, left_margin = 5;
1746                                                 int right_margin = 5;
1747                                                 if(x < 0)
1748                                                 {
1749                                                         w -= -x;
1750                                                         x = 0;
1751                                                 }
1752                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1753
1754                                                 draw_3segmenth(x,
1755                                                         y,
1756                                                         w,
1757                                                         total_x,
1758                                                         total_w,
1759                                                         mwindow->theme->get_image("plugin_bg_data"),
1760                                                         0);
1761                                                 set_color(mwindow->theme->title_color);
1762                                                 set_font(mwindow->theme->title_font);
1763                                                 plugin->calculate_title(string, 0);
1764
1765 // Truncate string to int64_test visible in background
1766                                                 int len = strlen(string), j;
1767                                                 for(j = len; j >= 0; j--)
1768                                                 {
1769                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1770                                                         {
1771                                                                 string[j] = 0;
1772                                                         }
1773                                                         else
1774                                                                 break;
1775                                                 }
1776
1777 // Justify the text on the left boundary of the edit if it is visible.
1778 // Otherwise justify it on the left side of the screen.
1779                                                 int64_t text_x = total_x + left_margin;
1780                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1781                                                 text_x = MAX(left_margin, text_x);
1782                                                 draw_text(text_x,
1783                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1784                                                         string,
1785                                                         strlen(string),
1786                                                         0);
1787                                                 int64_t min_x = total_x + text_w;
1788
1789
1790 // Update plugin toggles
1791                                                 int toggle_x = total_x + total_w;
1792                                                 int toggle_y = y;
1793                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1794
1795 // On toggle
1796                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1797                                                 if(toggle_x > min_x)
1798                                                 {
1799                                                         if(current_on >= plugin_on_toggles.total)
1800                                                         {
1801                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1802                                                                 add_subwindow(plugin_on);
1803                                                                 plugin_on_toggles.append(plugin_on);
1804                                                         }
1805                                                         else
1806                                                         {
1807                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1808                                                         }
1809                                                         current_on++;
1810                                                 }
1811
1812 // Toggles for standalone plugins only
1813                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1814                                                 {
1815 // Show
1816                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1817                                                         if(toggle_x > min_x)
1818                                                         {
1819                                                                 if(current_show >= plugin_show_toggles.total)
1820                                                                 {
1821                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1822                                                                         add_subwindow(plugin_show);
1823                                                                         plugin_show_toggles.append(plugin_show);
1824                                                                 }
1825                                                                 else
1826                                                                 {
1827                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1828                                                                 }
1829                                                                 current_show++;
1830                                                         }
1831                                                         toggle_x -= PluginPresetEdit::calculate_w(mwindow) + 10;
1832                                                         if(toggle_x > min_x)
1833                                                         {
1834                                                                 if(current_preset >= preset_edit_buttons.total)
1835                                                                 {
1836                                                                         PluginPresetEdit *preset_edit = new PluginPresetEdit(mwindow, toggle_x, toggle_y, plugin);
1837                                                                         add_subwindow(preset_edit);
1838                                                                         preset_edit_buttons.append(preset_edit);
1839                                                                 }
1840                                                                 else
1841                                                                 {
1842                                                                         preset_edit_buttons.values[current_preset]->update(toggle_x, toggle_y, plugin);
1843                                                                 }
1844                                                                 current_preset++;
1845                                                         }
1846                                                 }
1847                                         }
1848                                 }
1849                         }
1850                 }
1851         }
1852
1853 // Remove unused toggles
1854
1855         while(current_preset < preset_edit_buttons.total)
1856         {
1857                 preset_edit_buttons.remove_object_number(current_preset);
1858         }
1859         while(current_show < plugin_show_toggles.total)
1860         {
1861                 plugin_show_toggles.remove_object_number(current_show);
1862         }
1863
1864         while(current_on < plugin_on_toggles.total)
1865         {
1866                 plugin_on_toggles.remove_object_number(current_on);
1867         }
1868 }
1869
1870 void TrackCanvas::refresh_plugintoggles()
1871 {
1872         for(int i = 0; i < plugin_on_toggles.total; i++)
1873         {
1874                 PluginOn *on = plugin_on_toggles.values[i];
1875                 on->reposition_window(on->get_x(), on->get_y());
1876         }
1877         for(int i = 0; i < plugin_show_toggles.total; i++)
1878         {
1879                 PluginShow *show = plugin_show_toggles.values[i];
1880                 show->reposition_window(show->get_x(), show->get_y());
1881         }
1882         for(int i = 0; i < preset_edit_buttons.total; i++)
1883         {
1884                 PluginPresetEdit *preset_edit = preset_edit_buttons.values[i];
1885                 preset_edit->reposition_window(preset_edit->get_x(), preset_edit->get_y());
1886         }
1887 }
1888
1889 void TrackCanvas::draw_hard_edges()
1890 {
1891         if( !mwindow->edl->session->auto_conf->hard_edges )
1892                 return;
1893         int64_t x, y, w, h;
1894
1895         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1896                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1897                         if( !edit->hard_left && !edit->hard_right ) continue;
1898                         edit_dimensions(edit, x, y, w, h);
1899                         set_color(GREEN);
1900                         set_opaque();
1901                         int y1 = y;
1902                         if( track->show_titles() )
1903                                 y1 += mwindow->theme->get_image("title_bg_data")->get_h();
1904                         if( track->show_assets() )
1905                                 y1 += resource_h();
1906                         if( y1 == y )
1907                                 y1 += mwindow->theme->title_h;
1908                         if( edit->hard_left ) {
1909                                 ArrayList<int> xpt, ypt;
1910                                 xpt.append(x);              ypt.append(y1);
1911                                 xpt.append(x+HANDLE_W);     ypt.append(y1);
1912                                 xpt.append(x);              ypt.append(y1-HANDLE_H);
1913                                 fill_polygon(&xpt, &ypt);
1914                         }
1915                         if( edit->hard_right ) {
1916                                 ArrayList<int> xpt, ypt;   int x1 = x+w-1;
1917                                 xpt.append(x1);            ypt.append(y1);
1918                                 xpt.append(x1-HANDLE_W);   ypt.append(y1);
1919                                 xpt.append(x1);            ypt.append(y1-HANDLE_H);
1920                                 fill_polygon(&xpt, &ypt);
1921                         }
1922                 }
1923         }
1924 }
1925
1926 void TrackCanvas::draw_inout_points()
1927 {
1928 }
1929
1930
1931 void TrackCanvas::draw_drag_handle()
1932 {
1933         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 &&
1934             mwindow->session->current_operation != DRAG_PLUGINHANDLE2 ) return;
1935         int64_t pixel1 = Units::round(mwindow->session->drag_position *
1936                 mwindow->edl->session->sample_rate /
1937                 mwindow->edl->local_session->zoom_sample -
1938                 mwindow->edl->local_session->view_start[pane->number]);
1939         set_color(!snapped ? GREEN : (snapped=0, YELLOW));
1940         set_inverse();
1941         draw_line(pixel1, 0, pixel1, get_h());
1942         set_opaque();
1943
1944         if( mwindow->session->current_operation != DRAG_EDITHANDLE2 ) return;
1945         if( !mwindow->session->drag_edit ) return;
1946         int group_id = mwindow->session->drag_edit->group_id;
1947         if( !group_id ) return;
1948         int64_t dx, dy, dw, dh;
1949         edit_dimensions(mwindow->session->drag_edit, dx, dy, dw, dh);
1950         int drag_handle = mwindow->session->drag_handle;
1951         int64_t pixel0 = !drag_handle ? dx : dx + dw;
1952         int delta = pixel1 - pixel0;
1953         set_color(LTPURPLE);
1954         set_line_width(3);
1955
1956         for( Track *track=mwindow->edl->tracks->first; track; track=track->next ) {
1957                 Edit *left = 0, *right = 0;
1958                 double start = DBL_MAX, end = DBL_MIN;
1959                 for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
1960                         if( edit->group_id != group_id ) continue;
1961                         double edit_start = edit->track->from_units(edit->startproject);
1962                         if( edit_start < start ) { start = edit_start;  left = edit; }
1963                         double edit_end = edit->track->from_units(edit->startproject+edit->length);
1964                         if( edit_end > end ) { end = edit_end;  right = edit; }
1965                 }
1966                 Edit *edit = !drag_handle ? left : right;
1967                 if( !edit ) continue;
1968                 Indexable *idxbl = edit->asset;
1969                 if( !idxbl ) idxbl = edit->nested_edl;
1970                 int can_drag = idxbl ? 1 : 0;
1971                 if( drag_handle ) {
1972                         int64_t source_len = !idxbl ? -1 :
1973                                 edit->track->data_type == TRACK_AUDIO ?
1974                                         idxbl->get_audio_samples() :
1975                                 edit->track->data_type == TRACK_VIDEO ?
1976                                         idxbl->get_video_frames() : -1;
1977                         if( edit->startsource + edit->length >= source_len )
1978                                 can_drag = 0;
1979                 }
1980                 else if( !edit->startsource )
1981                         can_drag = 0;
1982                 int64_t x, y, w, h;
1983                 edit_dimensions(edit, x, y, w, h);
1984                 if( y+h < 0 || y >= get_h() ) continue;
1985                 int edge_x = !drag_handle ? x : x + w;
1986                 int edge_y = y + h/2, k = 10;
1987                 if( edge_x >= 0 && edge_x < get_w() ) {
1988                         if( !can_drag ) {
1989                                 draw_line(edge_x-k,edge_y-k, edge_x+k,edge_y+k);
1990                                 draw_line(edge_x-k,edge_y+k, edge_x+k,edge_y-k);
1991                         }
1992                         else if( !drag_handle ) {
1993                                 draw_line(edge_x+k,edge_y-k, edge_x,edge_y);
1994                                 draw_line(edge_x+k,edge_y+k, edge_x,edge_y);
1995                         }
1996                         else {
1997                                 draw_line(edge_x,edge_y, edge_x-k,edge_y-k);
1998                                 draw_line(edge_x,edge_y, edge_x-k,edge_y+k);
1999                         }
2000                 }
2001                 edge_x += delta;
2002                 if( edge_x >= 0 && edge_x < get_w() ) {
2003                         draw_line(edge_x, y, edge_x, y+h);
2004                 }
2005         }
2006         set_line_width(1);
2007 }
2008
2009
2010 void TrackCanvas::draw_transitions()
2011 {
2012         int64_t x, y, w, h;
2013
2014         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
2015                 if( !track->show_transitions() ) continue;
2016
2017                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
2018                         if(!edit->transition) continue;
2019                         edit_dimensions(edit, x, y, w, h);
2020                         int strip_x = x, edit_y = y;
2021                         get_transition_coords(edit, x, y, w, h);
2022                         int strip_y = y - mwindow->theme->get_image("plugin_bg_data")->get_h();
2023                         if( track->show_assets() && track->show_titles() )
2024                                 edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
2025                         if( strip_y < edit_y ) strip_y = edit_y;
2026
2027                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
2028                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
2029                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
2030                             MWindowGUI::visible(y, y + h, 0, get_h()) ) {
2031                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
2032                                                 track->data_type);
2033                                 if( !server ) continue;
2034                                 VFrame *picon = server->get_picon();
2035                                 if( !picon ) continue;
2036                                 int picon_w = picon->get_w(), picon_h = picon->get_h();
2037                                 int track_h = edit->track->vertical_span(mwindow->theme);
2038                                 if( picon_h > track_h ) picon_h = track_h;
2039                                 draw_vframe(picon, x, y, w, h, 0, 0, picon_w, picon_h);
2040                         }
2041                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
2042                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h())) {
2043                                 int x = strip_x, w = strip_w;
2044                                 if( x < 0 ) {  w -= -x;  x = 0; }
2045                                 if( w + x > get_w() ) w -= (w + x) - get_w();
2046
2047                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
2048                                         mwindow->theme->get_image("plugin_bg_data"), 0);
2049                         }
2050                 }
2051         }
2052 }
2053
2054 void TrackCanvas::draw_loop_points()
2055 {
2056 //printf("TrackCanvas::draw_loop_points 1\n");
2057         if(mwindow->edl->local_session->loop_playback)
2058         {
2059 //printf("TrackCanvas::draw_loop_points 2\n");
2060                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
2061                         mwindow->edl->session->sample_rate /
2062                         mwindow->edl->local_session->zoom_sample -
2063                         mwindow->edl->local_session->view_start[pane->number]);
2064 //printf("TrackCanvas::draw_loop_points 3\n");
2065
2066                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2067                 {
2068                         set_color(GREEN);
2069                         draw_line(x, 0, x, get_h());
2070                 }
2071 //printf("TrackCanvas::draw_loop_points 4\n");
2072
2073                 x = Units::round(mwindow->edl->local_session->loop_end *
2074                         mwindow->edl->session->sample_rate /
2075                         mwindow->edl->local_session->zoom_sample -
2076                         mwindow->edl->local_session->view_start[pane->number]);
2077 //printf("TrackCanvas::draw_loop_points 5\n");
2078
2079                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
2080                 {
2081                         set_color(GREEN);
2082                         draw_line(x, 0, x, get_h());
2083                 }
2084 //printf("TrackCanvas::draw_loop_points 6\n");
2085         }
2086 //printf("TrackCanvas::draw_loop_points 7\n");
2087 }
2088
2089 void TrackCanvas::draw_brender_range()
2090 {
2091         if( !mwindow->preferences->use_brender || !mwindow->brender_active ) return;
2092         if( mwindow->edl->session->brender_start >= mwindow->edl->session->brender_end ) return;
2093         if( mwindow->edl->session->brender_end > 0 )
2094         {
2095                 int64_t x1 = Units::round(mwindow->edl->session->brender_start *
2096                         mwindow->edl->session->sample_rate /
2097                         mwindow->edl->local_session->zoom_sample -
2098                         mwindow->edl->local_session->view_start[pane->number]);
2099                 if(MWindowGUI::visible(x1, x1 + 1, 0, get_w()))
2100                 {
2101                         set_color(RED);
2102                         draw_line(x1, 0, x1, get_h());
2103                 }
2104                 int64_t x2 = Units::round(mwindow->edl->session->brender_end *
2105                         mwindow->edl->session->sample_rate /
2106                         mwindow->edl->local_session->zoom_sample -
2107                         mwindow->edl->local_session->view_start[pane->number]);
2108
2109                 if(MWindowGUI::visible(x2, x2 + 1, 0, get_w()))
2110                 {
2111                         set_color(RED);
2112                         draw_line(x2, 0, x2, get_h());
2113                 }
2114         }
2115 }
2116
2117 // The operations which correspond to each automation type
2118 int TrackCanvas::auto_operations[AUTOMATION_TOTAL] =
2119 {
2120         DRAG_MUTE,
2121         DRAG_CAMERA_X,
2122         DRAG_CAMERA_Y,
2123         DRAG_CAMERA_Z,
2124         DRAG_PROJECTOR_X,
2125         DRAG_PROJECTOR_Y,
2126         DRAG_PROJECTOR_Z,
2127         DRAG_FADE,
2128         DRAG_PAN,
2129         DRAG_MODE,
2130         DRAG_MASK,
2131         DRAG_SPEED
2132 };
2133
2134 // The buttonpress operations, so nothing changes unless the mouse moves
2135 // a certain amount.  This allows the keyframe to be used to position the
2136 // insertion point without moving itself.
2137 static int pre_auto_operations[AUTOMATION_TOTAL] =
2138 {
2139         DRAG_MUTE,
2140         DRAG_CAMERA_X,
2141         DRAG_CAMERA_Y,
2142         DRAG_CAMERA_Z,
2143         DRAG_PROJECTOR_X,
2144         DRAG_PROJECTOR_Y,
2145         DRAG_PROJECTOR_Z,
2146         DRAG_FADE,
2147         DRAG_PAN_PRE,
2148         DRAG_MODE_PRE,
2149         DRAG_MASK_PRE,
2150         DRAG_SPEED
2151 };
2152
2153
2154 int TrackCanvas::do_keyframes(int cursor_x,
2155         int cursor_y,
2156         int draw,
2157         int buttonpress,
2158         int &new_cursor,
2159         int &update_cursor,
2160         int &rerender)
2161 {
2162 // Note: button 3 (right mouse button) is not eaten to allow
2163 // track context menu to appear
2164         int result = 0;
2165         EDLSession *session = mwindow->edl->session;
2166
2167
2168
2169         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
2170         {
2171                 0, 0, 0, 0, 0, 0, 0, 0,
2172                 pankeyframe_pixmap,
2173                 modekeyframe_pixmap,
2174                 maskkeyframe_pixmap,
2175                 0,
2176         };
2177
2178
2179
2180         for(Track *track = mwindow->edl->tracks->first;
2181                 track && !result;
2182                 track = track->next) {
2183                 Auto *auto_keyframe = 0;
2184                 Automation *automation = track->automation;
2185
2186
2187 // Handle keyframes in reverse drawing order if a button press
2188                 int start = 0;
2189                 int end = AUTOMATION_TOTAL;
2190                 int step = 1;
2191                 if(buttonpress)
2192                 {
2193                         start = AUTOMATION_TOTAL - 1;
2194                         end = -1;
2195                         step = -1;
2196                 }
2197                 for(int i = start; i != end && !result; i += step)
2198                 {
2199 // Event not trapped and automation visible
2200                         Autos *autos = automation->autos[i];
2201                         if(!result && session->auto_conf->autos[i] && autos) {
2202                                 switch(i) {
2203                                 case AUTOMATION_MODE:
2204                                 case AUTOMATION_PAN:
2205                                 case AUTOMATION_MASK:
2206                                         result = do_autos(track, automation->autos[i],
2207                                                 cursor_x, cursor_y, draw,
2208                                                 buttonpress, auto_pixmaps[i],
2209                                                 auto_keyframe, rerender);
2210                                                 break;
2211
2212                                 default: {
2213                                         switch(autos->get_type()) {
2214                                         case Autos::AUTOMATION_TYPE_FLOAT: {
2215                                                 Automation automation(0, track);
2216                                                 int grouptype = automation.autogrouptype(i, track);
2217                                                 if( buttonpress && i == AUTOMATION_SPEED ) {
2218                                                         mwindow->speed_before();
2219                                                 }
2220
2221                                                 if(draw) // Do dropshadow
2222                                                         result = do_float_autos(track, autos,
2223                                                                 cursor_x, cursor_y, draw,
2224                                                                 buttonpress, 1, 1, MDGREY,
2225                                                                 auto_keyframe, grouptype);
2226                                                 result = do_float_autos(track, autos,
2227                                                         cursor_x, cursor_y, draw, buttonpress,
2228                                                         0, 0, GWindowGUI::auto_colors[i],
2229                                                         auto_keyframe, grouptype);
2230
2231                                                 if( !result && buttonpress && i == AUTOMATION_SPEED )
2232                                                         mwindow->speed_after(-1);
2233                                                 if( result && buttonpress ) {
2234                                                         int color = GWindowGUI::auto_colors[i];
2235                                                         mwindow->gui->zoombar->update_autozoom(grouptype, color);
2236                                                 }
2237                                                 break; }
2238
2239                                         case Autos::AUTOMATION_TYPE_INT: {
2240                                                 if(draw) // Do dropshadow
2241                                                         result = do_int_autos(track, autos,
2242                                                                 cursor_x, cursor_y, draw,
2243                                                                 buttonpress, 1, 1, MDGREY,
2244                                                                 auto_keyframe);
2245                                                 result = do_int_autos(track, autos,
2246                                                         cursor_x, cursor_y, draw, buttonpress,
2247                                                         0, 0, GWindowGUI::auto_colors[i],
2248                                                         auto_keyframe);
2249                                                 break; }
2250                                         }
2251                                         break; }
2252                                 }
2253
2254                                 if(result)
2255                                 {
2256                                         if(mwindow->session->current_operation == auto_operations[i])
2257                                                 rerender = 1;
2258
2259 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2260 // __LINE__,
2261 // mwindow->session->current_operation,
2262 // auto_operations[i]);
2263                                         if(buttonpress)
2264                                         {
2265                                                 if (buttonpress == 2 && auto_keyframe )
2266                                                 {
2267                                                         double position = track->from_units(auto_keyframe->position);
2268                                                         mwindow->edl->local_session->set_selectionstart(position);
2269                                                         mwindow->edl->local_session->set_selectionend(position);
2270                                                 }
2271                                                 if (buttonpress != 3)
2272                                                 {
2273                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2274                                                                 fill_ganged_autos(get_double_click(), 0, track,
2275                                                                         (FloatAuto*)mwindow->session->drag_auto);
2276                                                         mwindow->session->current_operation = pre_auto_operations[i];
2277                                                         update_drag_caption();
2278                                                         rerender = 1;
2279                                                 }
2280                                                 else if( auto_keyframe )
2281                                                 {
2282                                                         gui->keyframe_menu->update(automation,
2283                                                                 autos,
2284                                                                 auto_keyframe);
2285                                                         gui->keyframe_menu->activate_menu();
2286                                                         rerender = 1; // the position changes
2287                                                 }
2288                                                 else if( autos )
2289                                                 {
2290                                                         gui->keyframe_hide->update(autos);
2291                                                         gui->keyframe_hide->activate_menu();
2292                                                         rerender = 1; // the position changes
2293                                                 }
2294                                                 if(buttonpress == 1 && ctrl_down() &&
2295                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2296                                                         rerender = 1; // special case: curve mode changed
2297                                         }
2298                                 }
2299                         }
2300                 }
2301
2302                 if(!result && session->auto_conf->plugins) {
2303                         Plugin *plugin;
2304                         KeyFrame *keyframe;
2305                         result = do_plugin_autos(track, cursor_x, cursor_y,
2306                                 draw, buttonpress, plugin, keyframe);
2307                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2308                                 rerender = 1;
2309                         }
2310                         if(result && (buttonpress == 1)) {
2311                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2312                                 update_drag_caption();
2313                                 rerender = 1;
2314                         }
2315                         else if (result && (buttonpress == 3)) {
2316                                 gui->keyframe_menu->update(plugin, keyframe);
2317                                 gui->keyframe_menu->activate_menu();
2318                                 rerender = 1; // the position changes
2319                         }
2320                 }
2321         }
2322
2323 // Final pass to trap event
2324         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2325                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2326                         mwindow->session->current_operation == auto_operations[i]) {
2327                         result = 1;
2328                         break;
2329                 }
2330         }
2331
2332         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2333                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2334                 result = 1;
2335         }
2336
2337         update_cursor = 1;
2338         if(result) {
2339                 new_cursor = UPRIGHT_ARROW_CURSOR;
2340         }
2341
2342         return result;
2343 }
2344
2345 void TrackCanvas::draw_keyframe_reticle()
2346 {
2347         int keyframe_hairline = mwindow->preferences->keyframe_reticle;
2348         if( keyframe_hairline == HAIRLINE_NEVER ) return;
2349
2350         int current_op = mwindow->session->current_operation, dragging = 0;
2351         for( int i=0; !dragging && i<AUTOMATION_TOTAL; ++i )
2352                 if( current_op == auto_operations[i] ) dragging = 1;
2353         if( dragging && !mwindow->session->drag_auto ) dragging = 0;
2354
2355         int autoidx = dragging && keyframe_hairline != HAIRLINE_ALWAYS ?
2356                 mwindow->session->drag_auto->autos->autoidx : -1;
2357
2358         if( get_buttonpress() == LEFT_BUTTON && dragging &&
2359             keyframe_hairline == HAIRLINE_DRAGGING ) {
2360                 draw_hairline(mwindow->session->drag_auto, RED, 1);
2361                 return;
2362         }
2363
2364         if( keyframe_hairline == HAIRLINE_ALWAYS || ( get_buttonpress() == MIDDLE_BUTTON &&
2365             keyframe_hairline == HAIRLINE_DRAGGING && dragging ) ) {
2366                 int show = dragging || keyframe_hairline == HAIRLINE_ALWAYS ? 1 : 0;
2367                 for( Track *track = mwindow->edl->tracks->first; track; track=track->next ) {
2368                         Automation *automation = track->automation;
2369                         for( int i=0; i<AUTOMATION_TOTAL; ++i ) {
2370                                 if( !mwindow->edl->session->auto_conf->autos[i] ) continue;
2371                                 // automation visible
2372                                 Autos *autos = automation->autos[i];
2373                                 if( !autos ) continue;
2374                                 if( autoidx >= 0 && autos->autoidx != autoidx ) continue;
2375                                 for( Auto *auto_keyframe=autos->first; auto_keyframe;
2376                                      auto_keyframe = auto_keyframe->next ) {
2377                                         draw_hairline(auto_keyframe, BLUE, show);
2378                                 }
2379                         }
2380                 }
2381
2382                 if( dragging )
2383                         draw_hairline(mwindow->session->drag_auto, RED, 1);
2384         }
2385 }
2386
2387 void TrackCanvas::draw_auto(Auto *current,
2388         int x,
2389         int y,
2390         int center_pixel,
2391         int zoom_track)
2392 {
2393         int x1, y1, x2, y2;
2394
2395         x1 = x - HANDLE_W / 2;
2396         x2 = x + HANDLE_W / 2;
2397         y1 = center_pixel + y - HANDLE_W / 2;
2398         y2 = center_pixel + y + HANDLE_W / 2;
2399
2400         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2401         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2402
2403         draw_box(x1, y1, x2 - x1, y2 - y1);
2404 }
2405
2406
2407 // This draws lines for bezier in & out controls
2408 void TrackCanvas::draw_cropped_line(int x1,
2409         int y1,
2410         int x2,
2411         int y2,
2412         int min_y,
2413         int max_y)
2414 {
2415
2416
2417 // Don't care about x since it is clipped by the window.
2418 // Put y coords in ascending order
2419         if(y2 < y1) {
2420                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2421                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2422         }
2423
2424
2425
2426         double slope = (double)(x2 - x1) / (y2 - y1);
2427 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2428         if(y1 < min_y) {
2429                 x1 = (int)(x1 + (min_y - y1) * slope);
2430                 y1 = min_y;
2431         }
2432         else if(y1 >= max_y) {
2433                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2434                 y1 = max_y - 1;
2435         }
2436
2437         if(y2 >= max_y) {
2438                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2439                 y2 = max_y - 1;
2440         }
2441         else if(y2 < min_y) {
2442                 x2 = (int)(x2 + (min_y - y2) * slope);
2443                 y1 = min_y;
2444         }
2445
2446
2447 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2448         if( y1 >= min_y && y1 < max_y &&
2449             y2 >= min_y && y2 < max_y )
2450                 draw_line(x1, y1, x2, y2);
2451 }
2452
2453
2454 void TrackCanvas::draw_floatauto(FloatAuto *current,
2455         int x,
2456         int y,
2457         int in_x,
2458         int in_y,
2459         int out_x,
2460         int out_y,
2461         int center_pixel,
2462         int zoom_track,
2463         int color)
2464 {
2465         int x1 = x - HANDLE_W / 2; // Center
2466         int x2 = x + HANDLE_W / 2;
2467         int y1 = center_pixel + y - HANDLE_H / 2;
2468         int y2 = center_pixel + y + HANDLE_H / 2;
2469         int ymin = center_pixel - zoom_track / 2;
2470         int ymax = center_pixel + zoom_track / 2;
2471         CLAMP(y1, ymin, ymax);
2472         CLAMP(y2, ymin, ymax);
2473
2474         if( y2-1 > y1 ) {
2475                 if( current->curve_mode == FloatAuto::LINEAR ) {
2476                         draw_box(x1, y1, x2 - x1, y2 - y1);
2477                 }
2478                 else {
2479                         ArrayList<int> polygon_x;
2480                         ArrayList<int> polygon_y;
2481                         polygon_x.append((x1 + x2) / 2 + 1);
2482                         polygon_y.append(y1 + 1);
2483                         polygon_x.append(x2 + 1);
2484                         polygon_y.append((y1 + y2) / 2 + 1);
2485                         polygon_x.append((x1 + x2) / 2 + 1);
2486                         polygon_y.append(y2 + 1);
2487                         polygon_x.append(x1 + 1);
2488                         polygon_y.append((y1 + y2) / 2 + 1);
2489                         fill_polygon(&polygon_x, &polygon_y);
2490                 }
2491         }
2492
2493 // show bezier control points (only) if this
2494 // floatauto doesn't adjust it's tangents automatically
2495         if(current->curve_mode != FloatAuto::FREE &&
2496            current->curve_mode != FloatAuto::TFREE)
2497                 return;
2498
2499         if(in_x != x)
2500                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2501         if(out_x != x)
2502                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2503 }
2504
2505 inline int quantize(float f) { return (int)floor(f + 0.5); }
2506
2507 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2508         int x, int y, int cp_x, int cp_y, int center_pixel,
2509         int zoom_track, int color)
2510 // draw the tangent and a handle for given b├ęzier ctrl point
2511 {
2512         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2513
2514         float slope = (float)(cp_y - y)/(cp_x - x);
2515         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2516         if(slope != 0)
2517                 cp_x = x + quantize((cp_y - y) / slope);
2518
2519         y    += center_pixel;
2520         cp_y += center_pixel;
2521
2522         // drawing the tangent as a dashed line...
2523         int const dash = HANDLE_W;
2524         int const gap  = HANDLE_W / 2;
2525         float sx = 3 * (cp_x - x) / 4.;
2526         float ex = 0;
2527
2528         // q is the x displacement for a unit line of slope
2529         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2530
2531         float dist = 1/q * sx;
2532         if( dist > dash )
2533                 ex = sx - q * dash;
2534
2535         set_color(color);
2536         do {
2537                 float sy = slope * sx, ey = slope * ex;
2538                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2539                 sx = ex - q * gap;
2540                 ex = sx - q * dash;
2541         } while(q*ex > 0);
2542
2543         if(handle_visible)
2544         {
2545                 int r = HANDLE_W / 2;
2546                 int cp_x1 = cp_x - r;
2547                 int cp_y1 = cp_y - r;
2548                 set_color(BLACK);
2549                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2550                 set_color(color);
2551                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2552         }
2553 }
2554
2555
2556 int TrackCanvas::test_auto(Auto *current,
2557         int x, int y, int center_pixel, int zoom_track,
2558         int cursor_x, int cursor_y, int buttonpress)
2559 {
2560         int x1, y1, x2, y2;
2561         int result = 0;
2562
2563         x1 = x - HANDLE_W / 2;
2564         x2 = x + HANDLE_W / 2;
2565         y1 = center_pixel + y - HANDLE_H / 2;
2566         y2 = center_pixel + y + HANDLE_H / 2;
2567         int ymin = center_pixel - zoom_track / 2;
2568         int ymax = center_pixel + zoom_track / 2;
2569         CLAMP(y1, ymin, ymax);
2570         CLAMP(y2, ymin, ymax);
2571
2572         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2573         {
2574                 if(buttonpress && buttonpress != 3)
2575                 {
2576                         mwindow->session->drag_auto = current;
2577                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2578                         // Toggle Autos don't respond to vertical zoom, they always show up
2579                         // with "on" == 100% == line on top
2580                         mwindow->session->drag_start_position = current->position;
2581                         mwindow->session->drag_origin_x = cursor_x;
2582                         mwindow->session->drag_origin_y = cursor_y;
2583                 }
2584                 result = 1;
2585         }
2586
2587         if(buttonpress && buttonpress != 3 && result)
2588         {
2589 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2590                 mwindow->undo->update_undo_before();
2591         }
2592
2593         return result;
2594 }
2595
2596 // some Helpers for test_floatauto(..)
2597 // and for dragging the tangents/ctrl points
2598 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2599         float cursor_x, float cursor_y)
2600 {
2601 // Control point switched off?
2602         if( x0 == ctrl_x ) return 0.0;
2603         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2604         double x = cursor_x-x0, y = cursor_y-y0;
2605 // wrong side of ctrl handle
2606         if( x*x1 < 0 ) return 0.0;
2607 // outside handle radius
2608         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2609         double xx1 = x1*x1, yy1 = y1*y1;
2610         double xx = x*x, yy = y*y;
2611 // distance squared from cursor to cursor projected to line from ctrl to handle
2612 //   along a line perpendicular to line from ctrl to handle (closest approach)
2613 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2614         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2615         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2616 }
2617
2618
2619 inline
2620 float levered_position(float position, float ref_pos)
2621 {
2622         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos))
2623                 return 0.0;
2624         return ref_pos / position;
2625 }
2626
2627
2628 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2629 // transforms automation value into current display coords,
2630 // dependant on current automation display range for the given kind&n