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