016e6aa3b5bff84e127f45e25d46d7443f1bc1fc
[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 "colors.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 "indexstate.h"
42 #include "intauto.h"
43 #include "intautos.h"
44 #include "keyframe.h"
45 #include "keyframepopup.h"
46 #include "keyframes.h"
47 #include "keys.h"
48 #include "localsession.h"
49 #include "mainclock.h"
50 #include "maincursor.h"
51 #include "mainsession.h"
52 #include "mainundo.h"
53 #include "maskautos.h"
54 #include "mbuttons.h"
55 #include "mtimebar.h"
56 #include "mwindowgui.h"
57 #include "mwindow.h"
58 #include "panautos.h"
59 #include "patchbay.h"
60 #include "playbackengine.h"
61 #include "playtransport.h"
62 #include "plugin.h"
63 #include "pluginpopup.h"
64 #include "pluginserver.h"
65 #include "pluginset.h"
66 #include "plugintoggles.h"
67 #include "preferences.h"
68 #include "resourcepixmap.h"
69 #include "resourcethread.h"
70 #include "swindow.h"
71 #include "theme.h"
72 #include "trackcanvas.h"
73 #include "tracking.h"
74 #include "tracks.h"
75 #include "transition.h"
76 #include "transitionhandles.h"
77 #include "transitionpopup.h"
78 #include "transportque.h"
79 #include "vframe.h"
80 #include "vpatchgui.inc"
81 #include "zoombar.h"
82
83 #include <string.h>
84
85 //#define PIXMAP_AGE -5
86 #define PIXMAP_AGE -32
87
88 TrackCanvas::TrackCanvas(MWindow *mwindow,
89         TimelinePane *pane,
90         int x,
91         int y,
92         int w,
93         int h)
94  : BC_SubWindow(x,
95         y,
96         w,
97         h)
98 {
99         this->mwindow = mwindow;
100         this->gui = mwindow->gui;
101         this->pane = pane;
102
103         selection_midpoint = 0;
104         drag_scroll = 0;
105         active = 0;
106         temp_picon = 0;
107         resource_timer = new Timer;
108         render_timer = new Timer;
109         hourglass_enabled = 0;
110         timebar_position = -1;
111 }
112
113 TrackCanvas::~TrackCanvas()
114 {
115 //      delete transition_handles;
116         delete edit_handles;
117         delete keyframe_pixmap;
118         delete camerakeyframe_pixmap;
119         delete modekeyframe_pixmap;
120         delete pankeyframe_pixmap;
121         delete projectorkeyframe_pixmap;
122         delete maskkeyframe_pixmap;
123         delete background_pixmap;
124         if(temp_picon) delete temp_picon;
125         delete render_timer;
126         delete resource_timer;
127 }
128
129 void TrackCanvas::create_objects()
130 {
131         background_pixmap = new BC_Pixmap(this, get_w(), get_h());
132 //      transition_handles = new TransitionHandles(mwindow, this);
133         edit_handles = new EditHandles(mwindow, this);
134         keyframe_pixmap = new BC_Pixmap(this, mwindow->theme->keyframe_data, PIXMAP_ALPHA);
135         camerakeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->camerakeyframe_data, PIXMAP_ALPHA);
136         modekeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->modekeyframe_data, PIXMAP_ALPHA);
137         pankeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->pankeyframe_data, PIXMAP_ALPHA);
138         projectorkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->projectorkeyframe_data, PIXMAP_ALPHA);
139         maskkeyframe_pixmap = new BC_Pixmap(this, mwindow->theme->maskkeyframe_data, PIXMAP_ALPHA);
140         draw();
141         update_cursor(0);
142         flash(0);
143 }
144
145 void TrackCanvas::resize_event()
146 {
147 //printf("TrackCanvas::resize_event 1\n");
148         draw(0, 0);
149         flash(0);
150 //printf("TrackCanvas::resize_event 2\n");
151 }
152
153 int TrackCanvas::keypress_event()
154 {
155         return 0;
156 }
157
158 int TrackCanvas::cursor_leave_event()
159 {
160 // Because drag motion calls get_cursor_over_window we can be sure that
161 // all highlights get deleted now.
162 // This ended up blocking keyboard input from the drag operations.
163         if( timebar_position >= 0 )
164         {
165                 timebar_position = -1;
166                 if( pane->timebar )
167                         pane->timebar->update(1);
168         }
169
170         return 0;
171 //      return drag_motion();
172 }
173
174 int TrackCanvas::drag_motion_event()
175 {
176         return gui->drag_motion();
177 }
178
179 int TrackCanvas::drag_motion(Track **over_track,
180         Edit **over_edit,
181         PluginSet **over_pluginset,
182         Plugin **over_plugin)
183 {
184         int cursor_x = get_relative_cursor_x();
185         int cursor_y = get_relative_cursor_y();
186
187         if( get_cursor_over_window() &&
188                 cursor_x >= 0 && cursor_y >= 0 && 
189                 cursor_x < get_w() && cursor_y < get_h() )
190         {
191 //printf("TrackCanvas::drag_motion %d %d\n", __LINE__, pane->number);
192 // Find the edit and track the cursor is over
193                 for(Track *track = mwindow->edl->tracks->first; track; track = track->next)
194                 {
195                         int64_t track_x, track_y, track_w, track_h;
196                         track_dimensions(track, track_x, track_y, track_w, track_h);
197
198                         if(cursor_y >= track_y &&
199                                 cursor_y < track_y + track_h)
200                         {
201                                 *over_track = track;
202                                 for(Edit *edit = track->edits->first; edit; edit = edit->next)
203                                 {
204                                         int64_t edit_x, edit_y, edit_w, edit_h;
205                                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
206
207                                         if(cursor_x >= edit_x &&
208                                                 cursor_y >= edit_y &&
209                                                 cursor_x < edit_x + edit_w &&
210                                                 cursor_y < edit_y + edit_h)
211                                         {
212                                                 *over_edit = edit;
213                                                 break;
214                                         }
215                                 }
216
217                                 for(int i = 0; i < track->plugin_set.total; i++)
218                                 {
219                                         PluginSet *pluginset = track->plugin_set.values[i];
220                                         for(Plugin *plugin = (Plugin*)pluginset->first;
221                                                 plugin;
222                                                 plugin = (Plugin*)plugin->next)
223                                         {
224                                                 int64_t plugin_x, plugin_y, plugin_w, plugin_h;
225                                                 plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
226
227                                                 if(cursor_y >= plugin_y &&
228                                                         cursor_y < plugin_y + plugin_h)
229                                                 {
230                                                         *over_pluginset = plugin->plugin_set;
231
232                                                         if(cursor_x >= plugin_x &&
233                                                                 cursor_x < plugin_x + plugin_w)
234                                                         {
235                                                                 *over_plugin = plugin;
236                                                                 break;
237                                                         }
238                                                 }
239                                         }
240                                 }
241                                 break;
242                         }
243                 }
244         }
245
246         if( !*over_track )
247                 *over_track = pane->is_over_patchbay();
248
249         return 0;
250 }
251
252
253 int TrackCanvas::drag_stop_event()
254 {
255         int result = gui->drag_stop();
256         if( !result && mwindow->session->current_operation ) {
257                 mwindow->session->current_operation = NO_OPERATION;
258                 drag_scroll = 0;
259         }
260         return result;
261 }
262
263 int TrackCanvas::drag_stop(int *redraw)
264 {
265         int result = 0;
266         int insertion  = 0;
267         int over_window = 0;
268         int cursor_x = -1, cursor_y = -1;
269
270         if( get_cursor_over_window() ) {
271                 if( (cursor_x = get_relative_cursor_x()) >= 0 && cursor_x < get_w() &&
272                     (cursor_y = get_relative_cursor_y()) >= 0 && cursor_y < get_h() )
273                         over_window = 1;
274                 else {
275                         Track *track = pane->is_over_patchbay();
276                         if( track && mwindow->session->track_highlighted == track )
277                                 over_window = 1;
278                 }
279         }
280
281         if( over_window ) {
282                 switch(mwindow->session->current_operation) {
283                 case DRAG_VTRANSITION:
284                 case DRAG_ATRANSITION:
285                         if(mwindow->session->edit_highlighted) {
286                                 if( (mwindow->session->current_operation == DRAG_ATRANSITION &&
287                                      mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
288                                     (mwindow->session->current_operation == DRAG_VTRANSITION &&
289                                      mwindow->session->track_highlighted->data_type == TRACK_VIDEO) ) {
290                                         mwindow->session->current_operation = NO_OPERATION;
291                                         mwindow->paste_transition();
292                                         result = 1;
293                                 }
294                         }
295                         *redraw = 1;
296                         break;
297
298 // Behavior for dragged plugins is limited by the fact that a shared plugin
299 // can only refer to a standalone plugin that exists in the same position in
300 // time.  Dragging a plugin from one point in time to another can't produce
301 // a shared plugin to the original plugin.  In this case we relocate the
302 // plugin instead of sharing it.
303                 case DRAG_AEFFECT_COPY:
304                 case DRAG_VEFFECT_COPY:
305                         if( mwindow->session->track_highlighted &&
306                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
307                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
308                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
309                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
310                                 mwindow->session->current_operation = NO_OPERATION;
311
312                                 int64_t drop_position = -1;
313                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
314                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
315                                 Track *hi_track = mwindow->session->track_highlighted;
316
317 // Insert shared plugin in source
318 // Move source to different location
319                                 if( hi_plugin_set && hi_plugin_set->track == drag_plugin->track ) {
320 //printf("TrackCanvas::drag_stop 6\n");
321                                         drop_position = drop_plugin_position(hi_plugin_set, drag_plugin);
322                                         if( drop_position >= 0 )
323                                                 mwindow->move_effect(drag_plugin, hi_plugin_set, drop_position);
324                                         result = 1;
325                                 }
326                                 else if( hi_track ) {
327 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
328                                         Edit *hi_edit = mwindow->session->edit_highlighted;
329                                         drop_position = hi_edit ? hi_edit->startproject : 0;
330                                         if( drop_position >= 0 )
331                                                 mwindow->move_effect(drag_plugin, hi_track, drop_position);
332                                         result = 1;
333                                 }
334                         }
335                         break;
336
337                 case DRAG_AEFFECT:
338                 case DRAG_VEFFECT:
339                         if( mwindow->session->track_highlighted &&
340                             ((mwindow->session->current_operation == DRAG_AEFFECT &&
341                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
342                              (mwindow->session->current_operation == DRAG_VEFFECT &&
343                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) ) {
344 // Drop all the effects
345                                 PluginSet *plugin_set = mwindow->session->pluginset_highlighted;
346                                 Track *track = mwindow->session->track_highlighted;
347                                 double start = 0;
348                                 double length = track->get_length();
349
350                                 if(mwindow->session->plugin_highlighted) {
351                                         start = track->from_units(mwindow->session->plugin_highlighted->startproject);
352                                         length = track->from_units(mwindow->session->plugin_highlighted->length);
353                                         if(length <= 0) length = track->get_length();
354                                 }
355                                 else if(mwindow->session->pluginset_highlighted) {
356                                                 start = track->from_units(plugin_set->length());
357                                         length = track->get_length() - start;
358                                         if(length <= 0) length = track->get_length();
359                                 }
360                                 else if(mwindow->edl->local_session->get_selectionend() >
361                                         mwindow->edl->local_session->get_selectionstart()) {
362                                         start = mwindow->edl->local_session->get_selectionstart();
363                                         length = mwindow->edl->local_session->get_selectionend() -
364                                                 mwindow->edl->local_session->get_selectionstart();
365                                 }
366 // Move to a point between two edits
367                                 else if(mwindow->session->edit_highlighted) {
368                                         start = mwindow->session->track_highlighted->from_units(
369                                                 mwindow->session->edit_highlighted->startproject);
370                                         length = mwindow->session->track_highlighted->from_units(
371                                                 mwindow->session->edit_highlighted->length);
372                                 }
373
374                                 mwindow->insert_effects_canvas(start, length);
375                                 *redraw = 1;
376                         }
377                         if( mwindow->session->track_highlighted )
378                                 result = 1;  // we have to cleanup
379                         break;
380
381                 case DRAG_ASSET:
382                         if(mwindow->session->track_highlighted) {
383                                 double asset_duration = 0;
384                                 int64_t asset_length_units = 0;
385                                 int64_t position = 0;
386                                         
387                                 if(mwindow->session->current_operation == DRAG_ASSET &&
388                                         mwindow->session->drag_assets->total) {
389                                         Indexable *indexable = mwindow->session->drag_assets->values[0];
390                                         // we use video if we are over video and audio if we are over audio
391                                         if( indexable->have_video() &&
392                                             mwindow->session->track_highlighted->data_type == TRACK_VIDEO ) {
393                                                 // Images have length -1
394                                                 int64_t video_length = indexable->get_video_frames();
395                                                 if (video_length < 0) {
396                                                         if(mwindow->edl->session->si_useduration)
397                                                                 video_length = mwindow->edl->session->si_duration;
398                                                         else    
399                                                                 video_length = 1.0 / mwindow->edl->session->frame_rate ; 
400                                                 }
401                                                 asset_duration = video_length / indexable->get_frame_rate();
402                                         }
403                                         else if( indexable->have_audio() &&
404                                                  mwindow->session->track_highlighted->data_type == TRACK_AUDIO ) {
405                                                 int64_t audio_length = indexable->get_audio_samples();
406                                                 asset_duration = (double)audio_length / indexable->get_sample_rate();
407                                         }
408                                         else {
409                                                 result = 1;
410                                                 break;  // Do not do anything
411                                         }
412                                 }
413                                 else if( mwindow->session->current_operation == DRAG_ASSET &&
414                                          mwindow->session->drag_clips->total ) {
415                                         EDL *clip = mwindow->session->drag_clips->values[0];
416                                         asset_duration = clip->tracks->total_length();
417                                 }
418                                 else {
419                                         printf("DRAG_ASSET error: Asset dropped, but both drag_clips and drag_assets total is zero\n");
420                                 }
421                         
422                                 asset_length_units = mwindow->session->track_highlighted->to_units(asset_duration, 1);
423                                 position = drop_edit_position (&insertion, NULL, asset_length_units);
424                                 if( position == -1 ) {
425                                         result = 1;
426                                         break;          // Do not do anything
427                                 }
428                                 
429                                 double position_f = mwindow->session->track_highlighted->from_units(position);
430                                 Track *track = mwindow->session->track_highlighted;
431
432 //                              if (!insertion) {
433 //                                      // FIXME, we should create an mwindow/EDL method that overwrites, without clearing the keyframes and autos
434 //                                      // Unfortunately, this is _a lot_ of work to do right
435 //                                      printf("Problematic insertion\n");
436 //                                      mwindow->edl->tracks->clear(position_f, 
437 //                                              position_f + asset_duration, 0);
438 //                              }
439                                 mwindow->paste_assets(position_f, track, !insertion);
440                                 result = 1;    // need to be one no matter what, since we have track highlited so we have to cleanup....
441                         }
442                         break;
443
444                 case DRAG_EDIT:
445                         mwindow->session->current_operation = NO_OPERATION;
446                         if(mwindow->session->track_highlighted) {
447                                 if( mwindow->session->track_highlighted->data_type ==
448                                         mwindow->session->drag_edit->track->data_type) {
449                                         int64_t position = 0;
450                                         position = drop_edit_position(&insertion,
451                                                         mwindow->session->drag_edit,
452                                                         mwindow->session->drag_edit->length);
453                                         if (position == -1) {
454                                                 result = 1;
455                                                 break;          // Do not do anything
456                                         }
457                                         
458                                         double position_f = mwindow->session->track_highlighted->from_units(position);
459                                         Track *track = mwindow->session->track_highlighted;
460                                         mwindow->move_edits(mwindow->session->drag_edits,
461                                                         track, position_f, !insertion);
462                                 }
463
464                                 result = 1;
465                         }
466                         break;
467                 }
468         }
469
470         return result;
471 }
472
473 int TrackCanvas::drag_start_event()
474 {
475         int result = 0;
476         int redraw = 0;
477         int rerender = 0;
478         int new_cursor, update_cursor;
479
480         if(mwindow->session->current_operation != NO_OPERATION) return 0;
481
482         if(is_event_win()) {
483                 if(do_plugins(get_drag_x(), get_drag_y(),
484                                 1, 0, redraw, rerender)) {
485                         result = 1;
486                 }
487                 else if(do_edits(get_drag_x(), get_drag_y(),
488                                 0, 1, redraw, rerender, new_cursor, update_cursor)) {
489                         result = 1;
490                 }
491         }
492
493         return result;
494 }
495
496 int64_t TrackCanvas::drop_edit_position(int *is_insertion, Edit *moved_edit, int64_t moved_edit_length)
497 {
498         // get the canvas/track position
499         Track *track = mwindow->session->track_highlighted;
500         int cursor_x = get_relative_cursor_x();
501         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
502         double drop_time = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
503         // we use cursor position for affinity calculations
504         int64_t cursor_position = track->to_units(drop_time, 0);
505         if( cursor_position <= 0 ) {
506                 *is_insertion = 1;
507                 return 0;
508         }
509         if( moved_edit )  // relative cursor position depends upon drop point
510                 drop_time -= mwindow->session->drag_position - moved_edit->track->from_units(moved_edit->startproject);
511         int64_t drop_position = track->to_units(drop_time, 1);
512         if( !moved_edit )  // for clips and assets acts as they were grabbed in the middle
513                 drop_position -= moved_edit_length / 2;
514         Edit *last_edit = track->edits->last;
515         if( !last_edit || drop_position > last_edit->startproject+last_edit->length ) {
516                 *is_insertion = 0;
517                 return drop_position;
518         }
519
520         int64_t drop_x0 = 0, drop_x1 = 0;  // drop zone boundries
521         for( Edit *edit = track->edits->first; edit; ) {
522                 int64_t edit_x0 = edit->startproject, edit_x1 = edit_x0 + edit->length;
523                 if( Units::round(labs(edit_x0-cursor_position)*zoom_scale) < HANDLE_W ) {
524                         *is_insertion = 1; // cursor is close to the beginning of an edit -> insertion
525                         return edit->startproject;
526                 }
527                 if( Units::round(labs(edit_x1-cursor_position)*zoom_scale) < HANDLE_W ) {
528                         *is_insertion = 1; // cursor is close to the end of an edit -> insertion
529                         return edit->startproject + edit->length;
530                 }
531                 if( edit != moved_edit && !edit->silence() )
532                         drop_x0 = edit_x1; // reset drop zone
533                 if( (edit=edit->next) != 0 ) {
534                         if( edit == moved_edit || edit->silence() ) continue;
535                         drop_x1 = edit_x1;
536                 }
537                 else
538                         drop_x1 = INT64_MAX;
539 //printf("drop cursor=%jd, x0=%jd, x1=%jd\n", cursor_position, drop_x0, drop_x1);
540                 if( drop_position >= drop_x0 && drop_position+moved_edit_length < drop_x1 ) {
541                         *is_insertion = 0; // fits in the zone
542 //printf("into %jd\n", drop_position);
543                         return drop_position;
544                 }
545                 if( cursor_position < drop_x1 ) { // drop in the zone
546                         if( (drop_x1-drop_x0) >= moved_edit_length ) {
547                                 *is_insertion = 0; // fits in the zone, but over the edge
548                                 int64_t dx0 = llabs(cursor_position-drop_x0);
549                                 int64_t dx1 = llabs(cursor_position-drop_x1);
550 //printf("onto %jd\n", dx0 < dx1 ? drop_x0 : drop_x1 - moved_edit_length);
551                                 return dx0 < dx1 ? drop_x0 : drop_x1 - moved_edit_length;
552                         }
553                         int edit_center = (edit_x0+edit_x1) / 2;
554                         if( cursor_position < edit_center ) {
555                                 *is_insertion = 1;
556 //printf("snap left %jd\n", drop_x0);
557                                 return drop_x0; // snap left
558                         }
559                         else {
560                                 *is_insertion = 1;
561 //printf("snap right %jd\n", drop_x1);
562                                 return drop_x1; // snap right
563                         }
564                 }
565         }
566
567         *is_insertion = 0;
568         return -1;
569 }
570
571 int64_t TrackCanvas::drop_plugin_position(PluginSet *plugin_set, Plugin *moved_plugin)
572 {
573         // get the canvas/track position
574         Track *track = plugin_set->track;
575         int cursor_x = get_relative_cursor_x();
576         double zoom_scale = (double)mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample;
577         double drop_time = (cursor_x + mwindow->edl->local_session->view_start[pane->number]) / zoom_scale;
578         // we use cursor position for affinity calculations
579         int64_t cursor_position = track->to_units(drop_time, 0);
580         if( cursor_position <= 0 ) return 0;
581         drop_time -= mwindow->session->drag_position - moved_plugin->track->from_units(moved_plugin->startproject);
582         int64_t drop_position = track->to_units(drop_time, 1);
583         Plugin *last_plugin = (Plugin *)plugin_set->last;
584         if( !last_plugin || drop_position > last_plugin->startproject+last_plugin->length ) {
585                 return drop_position;
586         }
587
588         int64_t drop_x0 = 0, drop_x1 = 0;  // drop zone boundries
589         for( Plugin *plugin = (Plugin *)plugin_set->first; plugin; ) {
590                 int64_t plugin_x0 = plugin->startproject, plugin_x1 = plugin_x0 + plugin->length;
591                 if( plugin != moved_plugin && !plugin->silence() )
592                         drop_x0 = plugin_x1;
593                 if( (plugin=(Plugin *)plugin->next) != 0 ) {
594                         if( plugin == moved_plugin || plugin->silence() ) continue;
595                         drop_x1 = plugin_x1;
596                 }
597                 else
598                         drop_x1 = INT64_MAX;
599                 if( drop_position >= drop_x0 && // fits in the zone
600                     drop_position+moved_plugin->length < drop_x1 ) {
601                         return drop_position;
602                 }
603                 if( cursor_position < drop_x1 ) { // drop in the zone
604                         if( (drop_x1-drop_x0) >= moved_plugin->length ) {
605                                 int64_t dx0 = llabs(cursor_position-drop_x0);
606                                 int64_t dx1 = llabs(cursor_position-drop_x1);
607                                 return dx0 < dx1 ? drop_x0 : drop_x1 - moved_plugin->length;
608                         }
609                 }
610         }
611
612         return -1;
613 }
614
615
616 void TrackCanvas::draw(int mode, int hide_cursor)
617 {
618         const int debug = 0;
619
620
621 // Swap pixmap layers
622         if(get_w() != background_pixmap->get_w() ||
623                 get_h() != background_pixmap->get_h())
624         {
625                 delete background_pixmap;
626                 background_pixmap = new BC_Pixmap(this, get_w(), get_h());
627         }
628
629 // Cursor disappears after resize when this is called.
630 // Cursor doesn't redraw after editing when this isn't called.
631         if(pane->cursor && hide_cursor) pane->cursor->hide();
632         draw_top_background(get_parent(), 0, 0, get_w(), get_h(), background_pixmap);
633
634         if(debug) PRINT_TRACE
635         draw_resources(mode);
636
637         if(debug) PRINT_TRACE
638         draw_overlays();
639         if(debug) PRINT_TRACE
640 }
641
642 void TrackCanvas::update_cursor(int flush)
643 {
644         switch(mwindow->edl->session->editing_mode)
645         {
646                 case EDITING_ARROW: set_cursor(ARROW_CURSOR, 0, flush); break;
647                 case EDITING_IBEAM: set_cursor(IBEAM_CURSOR, 0, flush); break;
648         }
649 }
650
651
652 void TrackCanvas::test_timer()
653 {
654         if(resource_timer->get_difference() > 1000 &&
655                 !hourglass_enabled)
656         {
657                 start_hourglass();
658                 hourglass_enabled = 1;
659         }
660 }
661
662
663 void TrackCanvas::draw_indexes(Indexable *indexable)
664 {
665 // Don't redraw raw samples
666         IndexState *index_state = 0;
667         index_state = indexable->index_state;
668
669
670         if(index_state->index_zoom > mwindow->edl->local_session->zoom_sample)
671                 return;
672
673
674         draw_resources(0, 1, indexable);
675
676         draw_overlays();
677         flash(0);
678 }
679
680 void TrackCanvas::draw_resources(int mode,
681         int indexes_only,
682         Indexable *indexable)
683 {
684         const int debug = 0;
685
686         if(debug) PRINT_TRACE
687
688         if(!mwindow->edl->session->show_assets) return;
689
690
691 // can't stop thread here, because this is called for every pane
692 //      if(mode != IGNORE_THREAD && !indexes_only)
693 //              gui->resource_thread->stop_draw(!indexes_only);
694
695         if(mode != IGNORE_THREAD &&
696                 !indexes_only &&
697                 !gui->resource_thread->interrupted)
698         {
699                 printf("TrackCanvas::draw_resources %d: called without stopping ResourceThread\n",
700                         __LINE__);
701
702                 BC_Signals::dump_stack();
703         }
704
705         if(debug) PRINT_TRACE
706
707         resource_timer->update();
708
709 // Age resource pixmaps for deletion
710         if(!indexes_only)
711                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
712                         gui->resource_pixmaps.values[i]->visible--;
713
714         if(mode == FORCE_REDRAW)
715                 gui->resource_pixmaps.remove_all_objects();
716
717         if(debug) PRINT_TRACE
718
719 // Search every edit
720         for(Track *current = mwindow->edl->tracks->first;
721                 current;
722                 current = NEXT)
723         {
724                 if(debug) PRINT_TRACE
725                 for(Edit *edit = current->edits->first; edit; edit = edit->next)
726                 {
727                         if(debug) PRINT_TRACE
728                         if( current->data_type != TRACK_SUBTITLE )
729                                 if(!edit->asset && !edit->nested_edl) continue;
730                         if(indexes_only)
731                         {
732                                 if(edit->track->data_type != TRACK_AUDIO) continue;
733
734                                 if(edit->nested_edl &&
735                                         strcmp(indexable->path, edit->nested_edl->path)) continue;
736
737                                 if(edit->asset &&
738                                         strcmp(indexable->path, edit->asset->path)) continue;
739                         }
740
741                         if(debug) PRINT_TRACE
742
743                         int64_t edit_x, edit_y, edit_w, edit_h;
744                         edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
745
746 // Edit is visible
747                         if(MWindowGUI::visible(edit_x, edit_x + edit_w, 0, get_w()) &&
748                                 MWindowGUI::visible(edit_y, edit_y + edit_h, 0, get_h()))
749                         {
750                                 int64_t pixmap_x, pixmap_w, pixmap_h;
751                                 if(debug) PRINT_TRACE
752
753 // Search for existing pixmap containing edit
754                                 for(int i = 0; i < gui->resource_pixmaps.total; i++)
755                                 {
756                                         ResourcePixmap* pixmap = gui->resource_pixmaps.values[i];
757 // Same pointer can be different edit if editing took place
758                                         if(pixmap->edit_id == edit->id &&
759                                                 pixmap->pane_number == pane->number)
760                                         {
761                                                 pixmap->visible = 1;
762                                                 break;
763                                         }
764                                 }
765                                 if(debug) PRINT_TRACE
766
767 // Get new size, offset of pixmap needed
768                                 get_pixmap_size(edit,
769                                         edit_x,
770                                         edit_w,
771                                         pixmap_x,
772                                         pixmap_w,
773                                         pixmap_h);
774                                 if(debug) PRINT_TRACE
775
776 // Draw new data
777                                 if(pixmap_w && pixmap_h)
778                                 {
779 // Create pixmap if it doesn't exist
780                                         ResourcePixmap* pixmap = create_pixmap(edit,
781                                                 edit_x,
782                                                 pixmap_x,
783                                                 pixmap_w,
784                                                 pixmap_h);
785 // Resize it if it's bigger
786                                         if(pixmap_w > pixmap->pixmap_w ||
787                                                 pixmap_h > pixmap->pixmap_h)
788                                                 pixmap->resize(pixmap_w, pixmap_h);
789                                         pixmap->draw_data(this,
790                                                 edit,
791                                                 edit_x,
792                                                 edit_w,
793                                                 pixmap_x,
794                                                 pixmap_w,
795                                                 pixmap_h,
796                                                 mode,
797                                                 indexes_only);
798 // Resize it if it's smaller
799                                         if(pixmap_w < pixmap->pixmap_w ||
800                                                 pixmap_h < pixmap->pixmap_h)
801                                                 pixmap->resize(pixmap_w, pixmap_h);
802
803 // Copy pixmap to background canvas
804                                         background_pixmap->draw_pixmap(pixmap,
805                                                 pixmap->pixmap_x,
806                                                 current->y_pixel - mwindow->edl->local_session->track_start[pane->number],
807                                                 pixmap->pixmap_w,
808                                                 edit_h);
809                                 }
810                                 if(debug) PRINT_TRACE
811
812                         }
813                 }
814         }
815
816
817 // Delete unused pixmaps
818         if(debug) PRINT_TRACE
819         if(!indexes_only)
820                 for(int i = gui->resource_pixmaps.total - 1; i >= 0; i--)
821                         if(gui->resource_pixmaps.values[i]->visible < PIXMAP_AGE)
822                         {
823 //printf("TrackCanvas::draw_resources %d\n", __LINE__);
824                                 delete gui->resource_pixmaps.values[i];
825                                 gui->resource_pixmaps.remove(gui->resource_pixmaps.values[i]);
826                         }
827         if(debug) PRINT_TRACE
828
829         if(hourglass_enabled)
830         {
831                 stop_hourglass();
832                 hourglass_enabled = 0;
833         }
834         if(debug) PRINT_TRACE
835
836 // can't stop thread here, because this is called for every pane
837 //      if(mode != IGNORE_THREAD && !indexes_only)
838 //              gui->resource_thread->start_draw();
839         if(debug) PRINT_TRACE
840
841
842 }
843
844 ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
845         int64_t edit_x,
846         int64_t pixmap_x,
847         int64_t pixmap_w,
848         int64_t pixmap_h)
849 {
850         ResourcePixmap *result = 0;
851
852         for(int i = 0; i < gui->resource_pixmaps.total; i++)
853         {
854 //printf("TrackCanvas::create_pixmap 1 %d %d\n", edit->id, resource_pixmaps.values[i]->edit->id);
855                 if(gui->resource_pixmaps.values[i]->edit_id == edit->id &&
856                         gui->resource_pixmaps.values[i]->pane_number == pane->number)
857                 {
858                         result = gui->resource_pixmaps.values[i];
859                         break;
860                 }
861         }
862
863         if(!result)
864         {
865 //SET_TRACE
866                 result = new ResourcePixmap(mwindow,
867                         gui,
868                         edit,
869                         pane->number,
870                         pixmap_w,
871                         pixmap_h);
872 //SET_TRACE
873                 gui->resource_pixmaps.append(result);
874         }
875
876 //      result->resize(pixmap_w, pixmap_h);
877         return result;
878 }
879
880 void TrackCanvas::get_pixmap_size(Edit *edit,
881         int64_t edit_x,
882         int64_t edit_w,
883         int64_t &pixmap_x,
884         int64_t &pixmap_w,
885         int64_t &pixmap_h)
886 {
887
888 // Align x on frame boundaries
889
890
891 //      switch(edit->edits->track->data_type)
892 //      {
893 //              case TRACK_AUDIO:
894
895                         pixmap_x = edit_x;
896                         pixmap_w = edit_w;
897                         if(pixmap_x < 0)
898                         {
899                                 pixmap_w -= -edit_x;
900                                 pixmap_x = 0;
901                         }
902
903                         if(pixmap_x + pixmap_w > get_w())
904                         {
905                                 pixmap_w = get_w() - pixmap_x;
906                         }
907
908 //                      break;
909 //
910 //              case TRACK_VIDEO:
911 //              {
912 //                      int64_t picon_w = (int64_t)(edit->picon_w() + 0.5);
913 //                      int64_t frame_w = (int64_t)(edit->frame_w() + 0.5);
914 //                      int64_t pixel_increment = MAX(picon_w, frame_w);
915 //                      int64_t pixmap_x1 = edit_x;
916 //                      int64_t pixmap_x2 = edit_x + edit_w;
917 //
918 //                      if(pixmap_x1 < 0)
919 //                      {
920 //                              pixmap_x1 = (int64_t)((double)-edit_x / pixel_increment) *
921 //                                      pixel_increment +
922 //                                      edit_x;
923 //                      }
924 //
925 //                      if(pixmap_x2 > get_w())
926 //                      {
927 //                              pixmap_x2 = (int64_t)((double)(get_w() - edit_x) / pixel_increment + 1) *
928 //                                      pixel_increment +
929 //                                      edit_x;
930 //                      }
931 //                      pixmap_x = pixmap_x1;
932 //                      pixmap_w = pixmap_x2 - pixmap_x1;
933 //                      break;
934 //              }
935 //      }
936
937         pixmap_h = mwindow->edl->local_session->zoom_track;
938         if(mwindow->edl->session->show_titles) pixmap_h += mwindow->theme->get_image("title_bg_data")->get_h();
939 //printf("get_pixmap_size %d %d %d %d\n", edit_x, edit_w, pixmap_x, pixmap_w);
940 }
941
942 void TrackCanvas::edit_dimensions(Edit *edit,
943         int64_t &x,
944         int64_t &y,
945         int64_t &w,
946         int64_t &h)
947 {
948 //      w = Units::round(edit->track->from_units(edit->length) *
949 //              mwindow->edl->session->sample_rate /
950 //              mwindow->edl->local_session->zoom_sample);
951
952         h = resource_h();
953
954         x = Units::round(edit->track->from_units(edit->startproject) *
955                         mwindow->edl->session->sample_rate /
956                         mwindow->edl->local_session->zoom_sample -
957                         mwindow->edl->local_session->view_start[pane->number]);
958
959 // Method for calculating w so when edits are together we never get off by one error due to rounding
960         int64_t x_next = Units::round(edit->track->from_units(edit->startproject + edit->length) *
961                         mwindow->edl->session->sample_rate /
962                         mwindow->edl->local_session->zoom_sample -
963                         mwindow->edl->local_session->view_start[pane->number]);
964         w = x_next - x;
965
966         y = edit->edits->track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
967
968         if(mwindow->edl->session->show_titles)
969                 h += mwindow->theme->get_image("title_bg_data")->get_h();
970 }
971
972 void TrackCanvas::track_dimensions(Track *track, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
973 {
974         x = 0;
975         w = get_w();
976         y = track->y_pixel - mwindow->edl->local_session->track_start[pane->number];
977         h = track->vertical_span(mwindow->theme);
978 }
979
980
981 void TrackCanvas::draw_paste_destination()
982 {
983         //int cursor_x = get_relative_cursor_x();
984         //int cursor_y = get_relative_cursor_y();
985         int current_atrack = 0;
986         int current_vtrack = 0;
987         int current_aedit = 0;
988         int current_vedit = 0;
989         int64_t w = 0;
990         int64_t x;
991         double position;
992         int insertion  = 0;
993
994 //if(pane->number == BOTTOM_RIGHT_PANE)
995 //printf("TrackCanvas::draw_paste_destination %d %p\n", __LINE__, mwindow->session->track_highlighted);
996
997         if((mwindow->session->current_operation == DRAG_ASSET &&
998                         (mwindow->session->drag_assets->total ||
999                         mwindow->session->drag_clips->total)) ||
1000                 (mwindow->session->current_operation == DRAG_EDIT &&
1001                         mwindow->session->drag_edits->total)) {
1002                 Indexable *indexable = 0;
1003                 EDL *clip = 0;
1004                 //int draw_box = 0;
1005
1006                 if(mwindow->session->current_operation == DRAG_ASSET &&
1007                         mwindow->session->drag_assets->size())
1008                         indexable = mwindow->session->drag_assets->get(0);
1009
1010                 if(mwindow->session->current_operation == DRAG_ASSET &&
1011                         mwindow->session->drag_clips->size())
1012                         clip = mwindow->session->drag_clips->get(0);
1013
1014                 int has_audio = 0, has_video = 0;
1015                 double paste_audio_length = 0, paste_video_length = 0;
1016                 double paste_audio_position = -1, paste_video_position = -1;
1017
1018                 if( indexable ) {
1019                         has_audio = indexable->have_audio();
1020                         paste_audio_length = !has_audio ? 0 :
1021                                  (double)indexable->get_audio_samples() / indexable->get_sample_rate();
1022                         has_video = indexable->have_video();
1023                         Asset *asset = indexable->is_asset ? (Asset *)indexable : 0;
1024                         // Images have length -1
1025                         if( asset && asset->video_data && asset->video_length < 0 ) {
1026                                 paste_video_length = mwindow->edl->session->si_useduration ?
1027                                         mwindow->edl->session->si_duration / asset->frame_rate :
1028                                         1.0 / asset->frame_rate ;  // 1 frame
1029                         }
1030                         else
1031                                 paste_video_length = !has_video ? 0 :
1032                                         (double)indexable->get_video_frames() / indexable->get_frame_rate();
1033                 }
1034
1035                 if( clip ) {
1036                         has_audio = clip->tracks->total_audio_tracks() > 0 ? 1 : 0;
1037                         paste_audio_length = !has_audio ? 0 : clip->tracks->total_audio_length();
1038                         has_video = clip->tracks->total_video_tracks() > 0 ? 1 : 0;
1039                         paste_video_length = !has_video ? 0 : clip->tracks->total_video_length();
1040                 }
1041
1042 // 'Align cursor on frame' lengths calculations
1043                 if( mwindow->edl->session->cursor_on_frames ) {
1044                         double fps = mwindow->edl->session->frame_rate;
1045                         double aud = floor(paste_audio_length * fps) / fps;
1046                         double vid = floor(paste_video_length * fps) / fps;
1047                         double length = has_video && has_audio ?
1048                                         aud < vid ? aud : vid :
1049                                 has_video ? vid :
1050                                 has_audio ? aud : 0;
1051                         paste_video_length = paste_audio_length = length;
1052                 }
1053
1054                 if( has_audio ) { // we use video if we are over video and audio if we are over audio
1055                         int64_t length = 0;
1056                         switch( mwindow->session->track_highlighted->data_type ) {
1057                         case TRACK_VIDEO: length = paste_video_length;  break;
1058                         case TRACK_AUDIO: length = paste_audio_length;  break;
1059                         }
1060                         int64_t asset_length = mwindow->session->track_highlighted->
1061                                 to_units(length, 1);
1062                         paste_audio_position = mwindow->session->track_highlighted->
1063                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1064                 }
1065                 if( has_video ) {
1066                         int64_t asset_length = mwindow->session->track_highlighted->
1067                                 to_units(paste_video_length, 1);
1068                         paste_video_position = mwindow->session->track_highlighted->
1069                                 from_units(drop_edit_position(&insertion, NULL, asset_length));
1070                 }
1071
1072 // Get destination track
1073                 for(Track *dest = mwindow->session->track_highlighted;
1074                         dest;
1075                         dest = dest->next) {
1076                         if(dest->record) {
1077 // Get source width in pixels
1078                                 w = -1;
1079 // Use start of highlighted edit
1080                                 if(mwindow->session->edit_highlighted) {
1081                                         position = mwindow->session->track_highlighted->from_units(
1082                                                 mwindow->session->edit_highlighted->startproject);
1083                                 }
1084                                 else {
1085 // Use end of highlighted track, disregarding effects
1086                                         position = mwindow->session->track_highlighted->from_units(
1087                                                 mwindow->session->track_highlighted->edits->length());
1088                                 }
1089
1090 // Get the x coordinate
1091                                 x = Units::to_int64(position * 
1092                                         mwindow->edl->session->sample_rate /
1093                                         mwindow->edl->local_session->zoom_sample) - 
1094                                         mwindow->edl->local_session->view_start[pane->number];
1095
1096                                 double paste_position = -1.;
1097                                 if(dest->data_type == TRACK_AUDIO) {
1098                                         if(indexable && current_atrack < indexable->get_audio_channels()) {
1099 //printf("TrackCanvas::draw_paste_destination %d %d\n", __LINE__, current_atrack);
1100                                                 w = Units::to_int64((double)indexable->get_audio_samples() /
1101                                                         indexable->get_sample_rate() *
1102                                                         mwindow->edl->session->sample_rate /
1103                                                         mwindow->edl->local_session->zoom_sample);
1104                                                 paste_position = paste_audio_position;
1105                                         }
1106                                         else if(clip && current_atrack < clip->tracks->total_audio_tracks()) {
1107                                                 w = Units::to_int64((double)clip->tracks->total_length() *
1108                                                         mwindow->edl->session->sample_rate /
1109                                                         mwindow->edl->local_session->zoom_sample);
1110                                                 paste_position = paste_audio_position;
1111 //printf("draw_paste_destination %d\n", x);
1112                                         }
1113                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1114                                                 current_aedit < mwindow->session->drag_edits->total) {
1115                                                 Edit *edit;
1116                                                 while(current_aedit < mwindow->session->drag_edits->total &&
1117                                                         mwindow->session->drag_edits->values[current_aedit]->track->data_type != TRACK_AUDIO)
1118                                                         current_aedit++;
1119
1120                                                 if(current_aedit < mwindow->session->drag_edits->total) {
1121                                                         edit = mwindow->session->drag_edits->values[current_aedit];
1122                                                         w = Units::to_int64(edit->length / mwindow->edl->local_session->zoom_sample);
1123                                                         paste_position = mwindow->session->track_highlighted->
1124                                                                 from_units(drop_edit_position(&insertion,
1125                                                                         mwindow->session->drag_edit,
1126                                                                         mwindow->session->drag_edit->length));
1127                                                 }
1128                                         }
1129                                         if( paste_position >= 0 ) {
1130                                                 position = paste_position;
1131                                                 current_atrack++;
1132                                                 //draw_box = 1;
1133                                         }
1134                                         else
1135                                                 w = -1;
1136                                 }
1137                                 else if(dest->data_type == TRACK_VIDEO) {
1138 //printf("draw_paste_destination 1\n");
1139                                         if(indexable && current_vtrack < indexable->get_video_layers())
1140                                         {
1141                                                 w = Units::to_int64((double)indexable->get_video_frames() /
1142                                                         indexable->get_frame_rate() *
1143                                                         mwindow->edl->session->sample_rate /
1144                                                         mwindow->edl->local_session->zoom_sample);
1145                                                 paste_position = paste_video_position;
1146                                         }
1147                                         else if(clip && current_vtrack < clip->tracks->total_video_tracks()) {
1148                                                 w = Units::to_int64(clip->tracks->total_length() *
1149                                                         mwindow->edl->session->sample_rate /
1150                                                         mwindow->edl->local_session->zoom_sample);
1151                                                 paste_position = paste_video_position;
1152                                         }
1153                                         else if(mwindow->session->current_operation == DRAG_EDIT &&
1154                                                 current_vedit < mwindow->session->drag_edits->total) {
1155                                                 Edit *edit;
1156                                                 while(current_vedit < mwindow->session->drag_edits->total &&
1157                                                         mwindow->session->drag_edits->values[current_vedit]->track->data_type != TRACK_VIDEO)
1158                                                         current_vedit++;
1159
1160                                                 if(current_vedit < mwindow->session->drag_edits->total) {
1161                                                         edit = mwindow->session->drag_edits->values[current_vedit];
1162                                                         w = Units::to_int64(edit->track->from_units(edit->length) *
1163                                                                 mwindow->edl->session->sample_rate /
1164                                                                 mwindow->edl->local_session->zoom_sample);
1165                                                         paste_position = mwindow->session->track_highlighted->
1166                                                                 from_units(drop_edit_position(&insertion,
1167                                                                         mwindow->session->drag_edit,
1168                                                                         mwindow->session->drag_edit->length));
1169                                                 }
1170                                         }
1171                                         if( paste_position >= 0 ) {
1172                                                 position = paste_position;
1173                                                 current_vedit++;
1174                                                 //draw_box = 1;
1175                                         }
1176                                         else
1177                                                 w = -1;
1178                                 }
1179
1180                                 if(w >= 0) {
1181 // Get the x coordinate
1182                                         x = Units::to_int64(position *
1183                                                 mwindow->edl->session->sample_rate /
1184                                                 mwindow->edl->local_session->zoom_sample) -
1185                                                 mwindow->edl->local_session->view_start[pane->number];
1186                                         int y = dest->y_pixel - mwindow->edl->local_session->track_start[pane->number];
1187                                         int h = dest->vertical_span(mwindow->theme);
1188
1189 //printf("TrackCanvas::draw_paste_destination 2 %d %d %d %d\n", x, y, w, h);
1190                                         if (insertion)
1191                                                 draw_highlight_insertion(x, y, w, h);
1192                                         else
1193                                                 draw_highlight_rectangle(x, y, w, h);
1194                                         if(x < -BC_INFINITY) {
1195                                                 w -= -BC_INFINITY - x;
1196                                                 x += -BC_INFINITY - x;
1197                                         }
1198                                         w = MIN(65535, w);
1199 // if(pane->number == TOP_RIGHT_PANE)
1200 // printf("TrackCanvas::draw_paste_destination %d %d %d %d %d\n",
1201 // __LINE__, x, y, w, h);
1202                                         draw_highlight_rectangle(x, y, w, h);
1203                                 }
1204                         }
1205                 }
1206         }
1207 }
1208
1209 void TrackCanvas::plugin_dimensions(Plugin *plugin, int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1210 {
1211         x = Units::round(plugin->track->from_units(plugin->startproject) *
1212                 mwindow->edl->session->sample_rate /
1213                 mwindow->edl->local_session->zoom_sample -
1214                 mwindow->edl->local_session->view_start[pane->number]);
1215         w = Units::round(plugin->track->from_units(plugin->length) *
1216                 mwindow->edl->session->sample_rate /
1217                 mwindow->edl->local_session->zoom_sample);
1218         y = plugin->track->y_pixel -
1219                 mwindow->edl->local_session->track_start[pane->number] +
1220                 mwindow->edl->local_session->zoom_track +
1221                 plugin->plugin_set->get_number() *
1222                 mwindow->theme->get_image("plugin_bg_data")->get_h();
1223         if(mwindow->edl->session->show_titles)
1224                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1225         h = mwindow->theme->get_image("plugin_bg_data")->get_h();
1226 }
1227
1228 int TrackCanvas::resource_h()
1229 {
1230         return mwindow->edl->local_session->zoom_track;
1231 }
1232
1233 void TrackCanvas::draw_highlight_rectangle(int x, int y, int w, int h)
1234 {
1235
1236 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1237 // just draw arrows, so user has indication that something is there
1238 // FIXME: get better colors
1239
1240         if (x + w <= 0)
1241         {
1242                 draw_triangle_left(0, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1243                 return;
1244         } else
1245         if (x >= get_w())
1246         {
1247                 draw_triangle_right(get_w() - h * 2/3, y + h /6, h * 2/3, h * 2/3, BLACK, GREEN, YELLOW, RED, BLUE);
1248                 return;
1249         }
1250
1251 // Fix bug in heroines & cvs version as of 22.8.2005:
1252 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1253         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1254         if(x < -10)
1255         {
1256                 w += x - -10;
1257                 x = -10;
1258         }
1259
1260         if(y < -10)
1261         {
1262                 h += y - -10;
1263                 y = -10;
1264         }
1265
1266         w = MIN(w, get_w() + 20);
1267         h = MIN(h, get_h() + 20);
1268         if(w > 0 && h > 0)
1269         {
1270                 set_color(WHITE);
1271                 set_inverse();
1272                 //draw_rectangle(x, y, w, h);
1273                 draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1274                 draw_rectangle(x + 2, y + 2, w - 4, h - 4);
1275                 set_opaque();
1276                 draw_rectangle(x, y, w, h);
1277         }
1278 //if(pane->number == TOP_RIGHT_PANE)
1279 //printf("TrackCanvas::draw_highlight_rectangle %d %d %d %d %d\n", __LINE__, x, y, w, h);
1280 }
1281
1282 void TrackCanvas::draw_highlight_insertion(int x, int y, int w, int h)
1283 {
1284
1285 // if we have to draw a highlighted rectangle completely on the left or completely on the right of the viewport,
1286 // just draw arrows, so user has indication that something is there
1287 // FIXME: get better colors
1288
1289
1290
1291         int h1 = h / 8;
1292         int h2 = h / 4;
1293
1294         set_inverse();
1295
1296 /* these don't look so good
1297
1298         draw_line(x, y, x, y+h);
1299         draw_line(x - h2 * 2, y + h1*2,   x - h2, y+h1*2);
1300         draw_line(x - h2 * 2, y + h1*2+1, x - h2, y+h1*2+1);
1301         draw_line(x - h2 * 2, y + h1*6,   x - h2, y+h1*6);
1302         draw_line(x - h2 * 2, y + h1*6+1, x - h2, y+h1*6+1);
1303 */
1304         draw_triangle_right(x - h2, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1305         draw_triangle_right(x - h2, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1306
1307 /*      draw_line(x + h2 * 2, y + h1*2,   x + h2, y+h1*2);
1308         draw_line(x + h2 * 2, y + h1*2+1, x + h2, y+h1*2+1);
1309         draw_line(x + h2 * 2, y + h1*6,   x + h2, y+h1*6);
1310         draw_line(x - h2 * 2, y + h1*6+1, x + h2, y+h1*6+1);
1311 */
1312         draw_triangle_left(x, y + h1, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1313         draw_triangle_left(x, y + h1*5, h2, h2, BLACK, GREEN, YELLOW, RED, BLUE);
1314
1315 // draw the box centred around x
1316         x -= w / 2;
1317 // Fix bug in heroines & cvs version as of 22.8.2005:
1318 // If we grab when zoomed in and zoom out while dragging, when edit gets really narrow strange things start happening
1319         if (w >= 0 && w < 3) {x -= w /2; w = 3;};
1320         if(x < -10)
1321         {
1322                 w += x - -10;
1323                 x = -10;
1324         }
1325         if(y < -10)
1326         {
1327                 h += y - -10;
1328                 y = -10;
1329         }
1330         w = MIN(w, get_w() + 20);
1331         h = MIN(h, get_h() + 20);
1332         set_color(WHITE);
1333         set_inverse();
1334         draw_rectangle(x, y, w, h);
1335         draw_rectangle(x + 1, y + 1, w - 2, h - 2);
1336         set_opaque();
1337 //printf("TrackCanvas::draw_highlight_insertion %d %d %d %d\n", x, y, w, h);
1338 }
1339
1340 void TrackCanvas::draw_playback_cursor()
1341 {
1342 // Called before playback_cursor exists
1343 //      if(mwindow->playback_cursor && mwindow->playback_cursor->visible)
1344 //      {
1345 //              mwindow->playback_cursor->visible = 0;
1346 //              mwindow->playback_cursor->draw();
1347 //      }
1348 }
1349
1350 void TrackCanvas::get_handle_coords(Edit *edit, int64_t &x, int64_t &y, int64_t &w, int64_t &h, int side)
1351 {
1352         int handle_w = mwindow->theme->edithandlein_data[0]->get_w();
1353         int handle_h = mwindow->theme->edithandlein_data[0]->get_h();
1354
1355         edit_dimensions(edit, x, y, w, h);
1356
1357         if(mwindow->edl->session->show_titles)
1358         {
1359                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1360         }
1361         else
1362         {
1363                 y = 0;
1364         }
1365
1366         if(side == EDIT_OUT)
1367         {
1368                 x += w - handle_w;
1369         }
1370
1371         h = handle_h;
1372         w = handle_w;
1373 }
1374
1375 void TrackCanvas::get_transition_coords(int64_t &x, int64_t &y, int64_t &w, int64_t &h)
1376 {
1377 //printf("TrackCanvas::get_transition_coords 1\n");
1378 //      int transition_w = mwindow->theme->transitionhandle_data[0]->get_w();
1379 //      int transition_h = mwindow->theme->transitionhandle_data[0]->get_h();
1380         int transition_w = 30;
1381         int transition_h = 30;
1382 //printf("TrackCanvas::get_transition_coords 1\n");
1383
1384         if(mwindow->edl->session->show_titles)
1385                 y += mwindow->theme->get_image("title_bg_data")->get_h();
1386 //printf("TrackCanvas::get_transition_coords 2\n");
1387
1388         y += (h - mwindow->theme->get_image("title_bg_data")->get_h()) / 2 - transition_h / 2;
1389         x -= transition_w / 2;
1390
1391         h = transition_h;
1392         w = transition_w;
1393 }
1394
1395 void TrackCanvas::draw_highlighting()
1396 {
1397         int64_t x, y, w, h;
1398         int draw_box = 0;
1399
1400         switch(mwindow->session->current_operation)
1401         {
1402                 case DRAG_ATRANSITION:
1403                 case DRAG_VTRANSITION:
1404 //printf("TrackCanvas::draw_highlighting 1 %p %p\n",
1405 //      mwindow->session->track_highlighted, mwindow->session->edit_highlighted);
1406                         if(mwindow->session->edit_highlighted) {
1407 //printf("TrackCanvas::draw_highlighting 2\n");
1408                                 if((mwindow->session->current_operation == DRAG_ATRANSITION &&
1409                                         mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1410                                         (mwindow->session->current_operation == DRAG_VTRANSITION &&
1411                                         mwindow->session->track_highlighted->data_type == TRACK_VIDEO)) {
1412 //printf("TrackCanvas::draw_highlighting 2\n");
1413                                         edit_dimensions(mwindow->session->edit_highlighted, x, y, w, h);
1414 //printf("TrackCanvas::draw_highlighting 2\n");
1415
1416                                         if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1417                                                 MWindowGUI::visible(y, y + h, 0, get_h())) {
1418                                                 draw_box = 1;
1419                                                 get_transition_coords(x, y, w, h);
1420                                         }
1421 //printf("TrackCanvas::draw_highlighting 3\n");
1422                                 }
1423                         }
1424                         break;
1425
1426 // Dragging a new effect from the Resource window
1427                 case DRAG_AEFFECT:
1428                 case DRAG_VEFFECT:
1429                         if(mwindow->session->track_highlighted &&
1430                                 ((mwindow->session->current_operation == DRAG_AEFFECT &&
1431                                   mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1432                                  (mwindow->session->current_operation == DRAG_VEFFECT &&
1433                                   mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1434 // Put it before another plugin
1435                                 if(mwindow->session->plugin_highlighted) {
1436                                         plugin_dimensions(mwindow->session->plugin_highlighted,
1437                                                 x, y, w, h);
1438 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1439                                 }
1440 // Put it after a plugin set
1441                                 else if( mwindow->session->pluginset_highlighted &&
1442                                          mwindow->session->pluginset_highlighted->last ) {
1443                                         plugin_dimensions((Plugin*)mwindow->session->pluginset_highlighted->last,
1444                                                 x, y, w, h);
1445 //printf("TrackCanvas::draw_highlighting 1 %d %d\n", x, w);
1446                                         int64_t track_x, track_y, track_w, track_h;
1447                                         track_dimensions(mwindow->session->track_highlighted,
1448                                                 track_x, track_y, track_w, track_h);
1449
1450                                         x += w;
1451                                         w = Units::round(
1452                                                         mwindow->session->track_highlighted->get_length() *
1453                                                         mwindow->edl->session->sample_rate /
1454                                                         mwindow->edl->local_session->zoom_sample -
1455                                                         mwindow->edl->local_session->view_start[pane->number]) -
1456                                                 x;
1457 //printf("TrackCanvas::draw_highlighting 2 %d\n", w);
1458                                         if(w <= 0) w = track_w;
1459                                 }
1460                                 else {
1461                                         track_dimensions(mwindow->session->track_highlighted,
1462                                                 x, y, w, h);
1463
1464 //printf("TrackCanvas::draw_highlighting 1 %d %d %d %d\n", x, y, w, h);
1465 // Put it in a new plugin set determined by the selected range
1466                                         if(mwindow->edl->local_session->get_selectionend() >
1467                                                 mwindow->edl->local_session->get_selectionstart()) {
1468                                                 x = Units::to_int64(mwindow->edl->local_session->get_selectionstart() *
1469                                                         mwindow->edl->session->sample_rate /
1470                                                         mwindow->edl->local_session->zoom_sample -
1471                                                         mwindow->edl->local_session->view_start[pane->number]);
1472                                                 w = Units::to_int64((mwindow->edl->local_session->get_selectionend() -
1473                                                         mwindow->edl->local_session->get_selectionstart()) *
1474                                                         mwindow->edl->session->sample_rate /
1475                                                         mwindow->edl->local_session->zoom_sample);
1476                                         }
1477 // Put it in a new plugin set determined by an edit boundary
1478                                         else if(mwindow->session->edit_highlighted) {
1479                                                 int64_t temp_y, temp_h;
1480                                                 edit_dimensions(mwindow->session->edit_highlighted,
1481                                                         x, temp_y, w, temp_h);
1482                                         }
1483 // Put it at the beginning of the track in a new plugin set
1484                                 }
1485
1486                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1487                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1488 //printf("TrackCanvas::draw_highlighting 1\n");
1489                                         draw_box = 1;
1490                                 }
1491                         }
1492                         break;
1493
1494                 case DRAG_ASSET:
1495                         if(mwindow->session->track_highlighted) {
1496 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1497
1498 //                              if(MWindowGUI::visible(y, y + h, 0, get_h()))
1499 //                              {
1500                                         draw_paste_destination();
1501 //                              }
1502                         }
1503                         break;
1504
1505                 case DRAG_EDIT:
1506                         if(mwindow->session->track_highlighted) {
1507 //                              track_dimensions(mwindow->session->track_highlighted, x, y, w, h);
1508 //
1509 //                              if(MWindowGUI::visible(y, y + h, 0, get_h())) {
1510                                         draw_paste_destination();
1511 //                              }
1512                         }
1513                         break;
1514
1515 // Dragging an effect from the timeline
1516                 case DRAG_AEFFECT_COPY:
1517                 case DRAG_VEFFECT_COPY:
1518                         if( (mwindow->session->plugin_highlighted || mwindow->session->track_highlighted) &&
1519                             ((mwindow->session->current_operation == DRAG_AEFFECT_COPY &&
1520                               mwindow->session->track_highlighted->data_type == TRACK_AUDIO) ||
1521                              (mwindow->session->current_operation == DRAG_VEFFECT_COPY &&
1522                               mwindow->session->track_highlighted->data_type == TRACK_VIDEO))) {
1523
1524                                 int64_t plugin_position = -1;
1525                                 Plugin *drag_plugin = mwindow->session->drag_plugin;
1526                                 PluginSet *hi_plugin_set = mwindow->session->pluginset_highlighted;
1527                                 Track *hi_track = mwindow->session->track_highlighted;
1528                                 Edit *hi_edit = mwindow->session->edit_highlighted;
1529 // Put it into a silence zone
1530                                 if( hi_plugin_set && hi_plugin_set->last &&
1531                                     hi_plugin_set->track == drag_plugin->track ) {
1532                                         plugin_dimensions((Plugin *)hi_plugin_set->last, x, y, w, h);
1533                                         plugin_position = drop_plugin_position(hi_plugin_set, drag_plugin);
1534                                         hi_track = drag_plugin->track;
1535                                 }
1536                                 else if( hi_track ) {
1537 // Put it in a new plugin set determined by an edit boundary, or at the start of the track
1538                                         track_dimensions(hi_track, x, y, w, h);
1539                                         plugin_position = hi_edit ? hi_edit->startproject : 0;
1540                                 }
1541
1542                                 if( plugin_position < 0 ) break;
1543
1544 // Calculate length of plugin based on data type of track and units
1545                                 double zoom_scale = (double)mwindow->edl->session->sample_rate /
1546                                                 mwindow->edl->local_session->zoom_sample;
1547                                 x = Units::round(hi_track->from_units(plugin_position) * zoom_scale) -
1548                                                 mwindow->edl->local_session->view_start[pane->number];
1549                                 w = Units::round(hi_track->from_units(drag_plugin->length) * zoom_scale);
1550
1551                                 if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1552                                     MWindowGUI::visible(y, y + h, 0, get_h()) ) {
1553                                         draw_box = 1;
1554                                 }
1555                         }
1556                         break;
1557
1558                 case DRAG_PLUGINKEY:
1559                         if(mwindow->session->plugin_highlighted &&
1560                            mwindow->session->current_operation == DRAG_PLUGINKEY)
1561                         {
1562 // Just highlight the plugin
1563                                 plugin_dimensions(mwindow->session->plugin_highlighted, x, y, w, h);
1564
1565                                 if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
1566                                         MWindowGUI::visible(y, y + h, 0, get_h()))
1567                                 {
1568                                         draw_box = 1;
1569                                 }
1570                         }
1571                         break;
1572
1573         }
1574
1575
1576         if(draw_box)
1577         {
1578                 draw_highlight_rectangle(x, y, w, h);
1579         }
1580 }
1581
1582 void TrackCanvas::draw_plugins()
1583 {
1584         char string[BCTEXTLEN];
1585         int current_on = 0;
1586         int current_show = 0;
1587
1588
1589 //      if(!mwindow->edl->session->show_assets) goto done;
1590
1591         for(int i = 0; i < plugin_on_toggles.total; i++)
1592                 plugin_on_toggles.values[i]->in_use = 0;
1593         for(int i = 0; i < plugin_show_toggles.total; i++)
1594                 plugin_show_toggles.values[i]->in_use = 0;
1595
1596
1597         for(Track *track = mwindow->edl->tracks->first;
1598                 track;
1599                 track = track->next)
1600         {
1601                 if(track->expand_view)
1602                 {
1603                         for(int i = 0; i < track->plugin_set.total; i++)
1604                         {
1605                                 PluginSet *pluginset = track->plugin_set.values[i];
1606
1607                                 for(Plugin *plugin = (Plugin*)pluginset->first; plugin; plugin = (Plugin*)plugin->next)
1608                                 {
1609                                         int64_t total_x, y, total_w, h;
1610                                         plugin_dimensions(plugin, total_x, y, total_w, h);
1611
1612                                         if(MWindowGUI::visible(total_x, total_x + total_w, 0, get_w()) &&
1613                                                 MWindowGUI::visible(y, y + h, 0, get_h()) &&
1614                                                 plugin->plugin_type != PLUGIN_NONE)
1615                                         {
1616                                                 int x = total_x, w = total_w, left_margin = 5;
1617                                                 int right_margin = 5;
1618                                                 if(x < 0)
1619                                                 {
1620                                                         w -= -x;
1621                                                         x = 0;
1622                                                 }
1623                                                 if(w + x > get_w()) w -= (w + x) - get_w();
1624
1625                                                 draw_3segmenth(x,
1626                                                         y,
1627                                                         w,
1628                                                         total_x,
1629                                                         total_w,
1630                                                         mwindow->theme->get_image("plugin_bg_data"),
1631                                                         0);
1632                                                 set_color(mwindow->theme->title_color);
1633                                                 set_font(mwindow->theme->title_font);
1634                                                 plugin->calculate_title(string, 0);
1635
1636 // Truncate string to int64_test visible in background
1637                                                 int len = strlen(string), j;
1638                                                 for(j = len; j >= 0; j--)
1639                                                 {
1640                                                         if(left_margin + get_text_width(mwindow->theme->title_font, string) > w)
1641                                                         {
1642                                                                 string[j] = 0;
1643                                                         }
1644                                                         else
1645                                                                 break;
1646                                                 }
1647
1648 // Justify the text on the left boundary of the edit if it is visible.
1649 // Otherwise justify it on the left side of the screen.
1650                                                 int64_t text_x = total_x + left_margin;
1651                                                 int64_t text_w = get_text_width(mwindow->theme->title_font, string, strlen(string));
1652                                                 text_x = MAX(left_margin, text_x);
1653                                                 draw_text(text_x,
1654                                                         y + get_text_ascent(mwindow->theme->title_font) + 2,
1655                                                         string,
1656                                                         strlen(string),
1657                                                         0);
1658                                                 int64_t min_x = total_x + text_w;
1659
1660
1661 // Update plugin toggles
1662                                                 int toggle_x = total_x + total_w;
1663                                                 int toggle_y = y;
1664                                                 toggle_x = MIN(get_w() - right_margin, toggle_x);
1665
1666 // On toggle
1667                                                 toggle_x -= PluginOn::calculate_w(mwindow) + 10;
1668                                                 if(toggle_x > min_x)
1669                                                 {
1670                                                         if(current_on >= plugin_on_toggles.total)
1671                                                         {
1672                                                                 PluginOn *plugin_on = new PluginOn(mwindow, toggle_x, toggle_y, plugin);
1673                                                                 add_subwindow(plugin_on);
1674                                                                 plugin_on_toggles.append(plugin_on);
1675                                                         }
1676                                                         else
1677                                                         {
1678                                                                 plugin_on_toggles.values[current_on]->update(toggle_x, toggle_y, plugin);
1679                                                         }
1680                                                         current_on++;
1681                                                 }
1682
1683 // Toggles for standalone plugins only
1684                                                 if(plugin->plugin_type == PLUGIN_STANDALONE)
1685                                                 {
1686 // Show
1687                                                         toggle_x -= PluginShow::calculate_w(mwindow) + 10;
1688                                                         if(toggle_x > min_x)
1689                                                         {
1690                                                                 if(current_show >= plugin_show_toggles.total)
1691                                                                 {
1692                                                                         PluginShow *plugin_show = new PluginShow(mwindow, toggle_x, toggle_y, plugin);
1693                                                                         add_subwindow(plugin_show);
1694                                                                         plugin_show_toggles.append(plugin_show);
1695                                                                 }
1696                                                                 else
1697                                                                 {
1698                                                                         plugin_show_toggles.values[current_show]->update(toggle_x, toggle_y, plugin);
1699                                                                 }
1700                                                                 current_show++;
1701                                                         }
1702
1703
1704
1705                                                 }
1706                                         }
1707                                 }
1708                         }
1709                 }
1710         }
1711
1712 // Remove unused toggles
1713
1714         while(current_show < plugin_show_toggles.total)
1715         {
1716                 plugin_show_toggles.remove_object_number(current_show);
1717         }
1718
1719         while(current_on < plugin_on_toggles.total)
1720         {
1721                 plugin_on_toggles.remove_object_number(current_on);
1722         }
1723
1724 }
1725
1726 void TrackCanvas::refresh_plugintoggles()
1727 {
1728         for(int i = 0; i < plugin_on_toggles.total; i++)
1729         {
1730                 PluginOn *on = plugin_on_toggles.values[i];
1731                 on->reposition_window(on->get_x(), on->get_y());
1732         }
1733         for(int i = 0; i < plugin_show_toggles.total; i++)
1734         {
1735                 PluginShow *show = plugin_show_toggles.values[i];
1736                 show->reposition_window(show->get_x(), show->get_y());
1737         }
1738 }
1739
1740 void TrackCanvas::draw_inout_points()
1741 {
1742 }
1743
1744
1745 void TrackCanvas::draw_drag_handle()
1746 {
1747         if(mwindow->session->current_operation == DRAG_EDITHANDLE2 ||
1748                 mwindow->session->current_operation == DRAG_PLUGINHANDLE2)
1749         {
1750 //printf("TrackCanvas::draw_drag_handle 1 %ld %ld\n", mwindow->session->drag_sample, mwindow->edl->local_session->view_start);
1751                 int64_t pixel1 = Units::round(mwindow->session->drag_position *
1752                         mwindow->edl->session->sample_rate /
1753                         mwindow->edl->local_session->zoom_sample -
1754                         mwindow->edl->local_session->view_start[pane->number]);
1755 //printf("TrackCanvas::draw_drag_handle 2 %d %jd\n", pane->number, pixel1);
1756                 set_color(GREEN);
1757                 set_inverse();
1758 //printf("TrackCanvas::draw_drag_handle 3\n");
1759                 draw_line(pixel1, 0, pixel1, get_h());
1760                 set_opaque();
1761 //printf("TrackCanvas::draw_drag_handle 4\n");
1762         }
1763 }
1764
1765
1766 void TrackCanvas::draw_transitions()
1767 {
1768         int64_t x, y, w, h;
1769
1770 //      if(!mwindow->edl->session->show_assets) return;
1771
1772         for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
1773                 for(Edit *edit = track->edits->first; edit; edit = edit->next) {
1774                         if(!edit->transition) continue;
1775                         edit_dimensions(edit, x, y, w, h);
1776                         int strip_x = x, strip_y = y;
1777                         if(mwindow->edl->session->show_titles)
1778                                 strip_y += mwindow->theme->get_image("title_bg_data")->get_h();
1779                         get_transition_coords(x, y, w, h);
1780                         int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
1781                                 mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
1782                         if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
1783                                 MWindowGUI::visible(y, y + h, 0, get_h()) )
1784                         {
1785                                 PluginServer *server = mwindow->scan_plugindb(edit->transition->title,
1786                                                 track->data_type);
1787                                 if( !server ) continue;
1788                                 VFrame *picon = server->get_picon();
1789                                 if( !picon ) continue;
1790                                 draw_vframe(picon, x, y, w, h, 0, 0, picon->get_w(), picon->get_h());
1791                         }
1792                         if(MWindowGUI::visible(strip_x, strip_x + strip_w, 0, get_w()) &&
1793                                 MWindowGUI::visible(strip_y, strip_y + h, 0, get_h()))
1794                         {
1795                                 int x = strip_x, w = strip_w;
1796                                 if(x < 0)
1797                                 {
1798                                         w -= -x;
1799                                         x = 0;
1800                                 }
1801                                 if(w + x > get_w()) w -= (w + x) - get_w();
1802
1803                                 draw_3segmenth( x, strip_y, w, strip_x, strip_w,
1804                                         mwindow->theme->get_image("plugin_bg_data"), 0);
1805                         }
1806                 }
1807         }
1808 }
1809
1810 void TrackCanvas::draw_loop_points()
1811 {
1812 //printf("TrackCanvas::draw_loop_points 1\n");
1813         if(mwindow->edl->local_session->loop_playback)
1814         {
1815 //printf("TrackCanvas::draw_loop_points 2\n");
1816                 int64_t x = Units::round(mwindow->edl->local_session->loop_start *
1817                         mwindow->edl->session->sample_rate /
1818                         mwindow->edl->local_session->zoom_sample -
1819                         mwindow->edl->local_session->view_start[pane->number]);
1820 //printf("TrackCanvas::draw_loop_points 3\n");
1821
1822                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1823                 {
1824                         set_color(GREEN);
1825                         draw_line(x, 0, x, get_h());
1826                 }
1827 //printf("TrackCanvas::draw_loop_points 4\n");
1828
1829                 x = Units::round(mwindow->edl->local_session->loop_end *
1830                         mwindow->edl->session->sample_rate /
1831                         mwindow->edl->local_session->zoom_sample -
1832                         mwindow->edl->local_session->view_start[pane->number]);
1833 //printf("TrackCanvas::draw_loop_points 5\n");
1834
1835                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1836                 {
1837                         set_color(GREEN);
1838                         draw_line(x, 0, x, get_h());
1839                 }
1840 //printf("TrackCanvas::draw_loop_points 6\n");
1841         }
1842 //printf("TrackCanvas::draw_loop_points 7\n");
1843 }
1844
1845 void TrackCanvas::draw_brender_start()
1846 {
1847         if(mwindow->preferences->use_brender)
1848         {
1849                 int64_t x = Units::round(mwindow->edl->session->brender_start *
1850                         mwindow->edl->session->sample_rate /
1851                         mwindow->edl->local_session->zoom_sample -
1852                         mwindow->edl->local_session->view_start[pane->number]);
1853
1854                 if(MWindowGUI::visible(x, x + 1, 0, get_w()))
1855                 {
1856                         set_color(RED);
1857                         draw_line(x, 0, x, get_h());
1858                 }
1859         }
1860 }
1861
1862 static int auto_colors[AUTOMATION_TOTAL] =
1863 {
1864         BLUE,
1865         RED,
1866         GREEN,
1867         BLUE,
1868         RED,
1869         GREEN,
1870         BLUE,
1871         WHITE,
1872         0,
1873         0,
1874         0,
1875         WHITE
1876 };
1877
1878 // The operations which correspond to each automation type
1879 static int auto_operations[AUTOMATION_TOTAL] =
1880 {
1881         DRAG_MUTE,
1882         DRAG_CAMERA_X,
1883         DRAG_CAMERA_Y,
1884         DRAG_CAMERA_Z,
1885         DRAG_PROJECTOR_X,
1886         DRAG_PROJECTOR_Y,
1887         DRAG_PROJECTOR_Z,
1888         DRAG_FADE,
1889         DRAG_PAN,
1890         DRAG_MODE,
1891         DRAG_MASK,
1892         DRAG_SPEED
1893 };
1894
1895 // The buttonpress operations, so nothing changes unless the mouse moves
1896 // a certain amount.  This allows the keyframe to be used to position the
1897 // insertion point without moving itself.
1898 static int pre_auto_operations[AUTOMATION_TOTAL] =
1899 {
1900         DRAG_MUTE,
1901         DRAG_CAMERA_X,
1902         DRAG_CAMERA_Y,
1903         DRAG_CAMERA_Z,
1904         DRAG_PROJECTOR_X,
1905         DRAG_PROJECTOR_Y,
1906         DRAG_PROJECTOR_Z,
1907         DRAG_FADE,
1908         DRAG_PAN_PRE,
1909         DRAG_MODE_PRE,
1910         DRAG_MASK_PRE,
1911         DRAG_SPEED
1912 };
1913
1914
1915 int TrackCanvas::do_keyframes(int cursor_x,
1916         int cursor_y,
1917         int draw,
1918         int buttonpress,
1919         int &new_cursor,
1920         int &update_cursor,
1921         int &rerender)
1922 {
1923 // Note: button 3 (right mouse button) is not eaten to allow
1924 // track context menu to appear
1925         int result = 0;
1926         EDLSession *session = mwindow->edl->session;
1927
1928
1929
1930         static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
1931         {
1932                 0, 0, 0, 0, 0, 0, 0, 0,
1933                 pankeyframe_pixmap,
1934                 modekeyframe_pixmap,
1935                 maskkeyframe_pixmap,
1936         };
1937
1938
1939
1940         for(Track *track = mwindow->edl->tracks->first;
1941                 track && !result;
1942                 track = track->next) {
1943                 Auto *auto_keyframe = 0;
1944                 Automation *automation = track->automation;
1945
1946
1947 // Handle keyframes in reverse drawing order if a button press
1948                 int start = 0;
1949                 int end = AUTOMATION_TOTAL;
1950                 int step = 1;
1951                 if(buttonpress)
1952                 {
1953                         start = AUTOMATION_TOTAL - 1;
1954                         end = -1;
1955                         step = -1;
1956                 }
1957                 for(int i = start; i != end && !result; i += step)
1958                 {
1959 // Event not trapped and automation visible
1960                         Autos *autos = automation->autos[i];
1961                         if(!result && session->auto_conf->autos[i] && autos) {
1962                                 switch(i) {
1963                                 case AUTOMATION_MODE:
1964                                 case AUTOMATION_PAN:
1965                                 case AUTOMATION_MASK:
1966                                         result = do_autos(track, automation->autos[i],
1967                                                 cursor_x, cursor_y, draw,
1968                                                 buttonpress, auto_pixmaps[i],
1969                                                 auto_keyframe, rerender);
1970                                                 break;
1971
1972                                 default: {
1973                                         switch(autos->get_type()) {
1974                                         case Autos::AUTOMATION_TYPE_FLOAT: {
1975                                                 Automation automation(0, track);
1976                                                 int grouptype = automation.autogrouptype(i, track);
1977                                                 if(draw) // Do dropshadow
1978                                                         result = do_float_autos(track, autos,
1979                                                                 cursor_x, cursor_y, draw, 
1980                                                                 buttonpress, 1, 1, MDGREY,
1981                                                                 auto_keyframe, grouptype);
1982
1983                                                 result = do_float_autos(track, autos,
1984                                                         cursor_x, cursor_y, draw, 
1985                                                         buttonpress, 0, 0, auto_colors[i],
1986                                                         auto_keyframe, grouptype);
1987                                                 break; }
1988
1989                                         case Autos::AUTOMATION_TYPE_INT: {
1990                                                 if(draw) // Do dropshadow
1991                                                         result = do_int_autos(track, autos,
1992                                                                 cursor_x, cursor_y, draw, 
1993                                                                 buttonpress, 1, 1, MDGREY,
1994                                                                 auto_keyframe);
1995                                                 result = do_int_autos(track, autos,
1996                                                         cursor_x, cursor_y, draw, 
1997                                                         buttonpress, 0, 0, auto_colors[i],
1998                                                         auto_keyframe);
1999                                                 break; }
2000                                         }
2001                                         break; }
2002                                 }
2003
2004                                 if(result)
2005                                 {
2006                                         if(mwindow->session->current_operation == auto_operations[i])
2007                                                 rerender = 1;
2008
2009 // printf("TrackCanvas::do_keyframes %d %d %d\n",
2010 // __LINE__,
2011 // mwindow->session->current_operation,
2012 // auto_operations[i]);
2013                                         if(buttonpress)
2014                                         {
2015                                                 if (buttonpress != 3)
2016                                                 {
2017                                                         if(i == AUTOMATION_FADE || i == AUTOMATION_SPEED)
2018                                                                 synchronize_autos(0,
2019                                                                         track,
2020                                                                         (FloatAuto*)mwindow->session->drag_auto,
2021                                                                         1);
2022                                                         mwindow->session->current_operation = pre_auto_operations[i];
2023                                                         update_drag_caption();
2024                                                         rerender = 1;
2025                                                 }
2026                                                 else if( auto_keyframe )
2027                                                 {
2028                                                         gui->keyframe_menu->update(automation,
2029                                                                 autos,
2030                                                                 auto_keyframe);
2031                                                         gui->keyframe_menu->activate_menu();
2032                                                         rerender = 1; // the position changes
2033                                                 }
2034                                                 if(buttonpress == 1 && ctrl_down() &&
2035                                                    AUTOMATION_TYPE_FLOAT == autos->get_type())
2036                                                         rerender = 1; // special case: curve mode changed
2037                                         }
2038                                 }
2039                         }
2040                 }
2041
2042                 if(!result &&
2043                         session->auto_conf->plugins /* &&
2044                         mwindow->edl->session->show_assets */) {
2045                         Plugin *plugin;
2046                         KeyFrame *keyframe;
2047                         result = do_plugin_autos(track, cursor_x, cursor_y,
2048                                 draw, buttonpress, plugin, keyframe);
2049                         if(result && mwindow->session->current_operation == DRAG_PLUGINKEY) {
2050                                 rerender = 1;
2051                         }
2052                         if(result && (buttonpress == 1)) {
2053                                 mwindow->session->current_operation = DRAG_PLUGINKEY_PRE;
2054                                 update_drag_caption();
2055                                 rerender = 1;
2056                         }
2057                         else if (result && (buttonpress == 3)) {
2058                                 gui->keyframe_menu->update(plugin, keyframe);
2059                                 gui->keyframe_menu->activate_menu();
2060                                 rerender = 1; // the position changes
2061                         }
2062                 }
2063         }
2064
2065 // Final pass to trap event
2066         for(int i = 0; i < AUTOMATION_TOTAL; i++) {
2067                 if(mwindow->session->current_operation == pre_auto_operations[i] ||
2068                         mwindow->session->current_operation == auto_operations[i]) {
2069                         result = 1;
2070                         break;
2071                 }
2072         }
2073
2074         if(mwindow->session->current_operation == DRAG_PLUGINKEY ||
2075                 mwindow->session->current_operation == DRAG_PLUGINKEY_PRE) {
2076                 result = 1;
2077         }
2078
2079         update_cursor = 1;
2080         if(result) {
2081                 new_cursor = UPRIGHT_ARROW_CURSOR;
2082         }
2083
2084
2085         return result;
2086 }
2087
2088 void TrackCanvas::draw_auto(Auto *current,
2089         int x,
2090         int y,
2091         int center_pixel,
2092         int zoom_track)
2093 {
2094         int x1, y1, x2, y2;
2095
2096         x1 = x - HANDLE_W / 2;
2097         x2 = x + HANDLE_W / 2;
2098         y1 = center_pixel + y - HANDLE_W / 2;
2099         y2 = center_pixel + y + HANDLE_W / 2;
2100
2101         if(y1 < center_pixel + -zoom_track / 2) y1 = center_pixel + -zoom_track / 2;
2102         if(y2 > center_pixel + zoom_track / 2) y2 = center_pixel + zoom_track / 2;
2103
2104         draw_box(x1, y1, x2 - x1, y2 - y1);
2105 }
2106
2107
2108 // This draws lines for bezier in & out controls
2109 void TrackCanvas::draw_cropped_line(int x1,
2110         int y1,
2111         int x2,
2112         int y2,
2113         int min_y,
2114         int max_y)
2115 {
2116
2117
2118 // Don't care about x since it is clipped by the window.
2119 // Put y coords in ascending order
2120         if(y2 < y1) {
2121                 y2 ^= y1; y1 ^= y2; y2 ^= y1;
2122                 x2 ^= x1; x1 ^= x2; x2 ^= x1;
2123         }
2124
2125
2126
2127         double slope = (double)(x2 - x1) / (y2 - y1);
2128 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2129         if(y1 < min_y) {
2130                 x1 = (int)(x1 + (min_y - y1) * slope);
2131                 y1 = min_y;
2132         }
2133         else if(y1 >= max_y) {
2134                 x1 = (int)(x1 + (max_y - 1 - y1) * slope);
2135                 y1 = max_y - 1;
2136         }
2137
2138         if(y2 >= max_y) {
2139                 x2 = (int)(x2 + (max_y - 1 - y2) * slope);
2140                 y2 = max_y - 1;
2141         }
2142         else if(y2 < min_y) {
2143                 x2 = (int)(x2 + (min_y - y2) * slope);
2144                 y1 = min_y;
2145         }
2146
2147
2148 //printf("TrackCanvas::draw_cropped_line %d %d %d %d %d\n", __LINE__, x1, y1, x2, y2);
2149         if( y1 >= min_y && y1 < max_y &&
2150             y2 >= min_y && y2 < max_y )
2151                 draw_line(x1, y1, x2, y2);
2152 }
2153
2154
2155 void TrackCanvas::draw_floatauto(FloatAuto *current, 
2156         int x, 
2157         int y, 
2158         int in_x, 
2159         int in_y, 
2160         int out_x, 
2161         int out_y, 
2162         int center_pixel, 
2163         int zoom_track,
2164         int color)
2165 {
2166         int x1 = x - HANDLE_W / 2; // Center
2167         int x2 = x + HANDLE_W / 2;
2168         int y1 = center_pixel + y - HANDLE_H / 2;
2169         int y2 = center_pixel + y + HANDLE_H / 2;
2170         int ymin = center_pixel - zoom_track / 2;
2171         int ymax = center_pixel + zoom_track / 2;
2172         CLAMP(y1, ymin, ymax);
2173         CLAMP(y2, ymin, ymax);
2174
2175         if(y2 - 1 > y1)
2176         {
2177                 set_color(BLACK);
2178                 draw_box(x1 + 1, y1 + 1, x2 - x1, y2 - y1);
2179                 set_color(color);
2180                 draw_box(x1, y1, x2 - x1, y2 - y1);
2181         }
2182
2183 // show bezier control points (only) if this 
2184 // floatauto doesn't adjust it's tangents automatically
2185         if(current->curve_mode != FloatAuto::FREE &&
2186            current->curve_mode != FloatAuto::TFREE)
2187                 return;
2188
2189         if(in_x != x)
2190                 draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, zoom_track, color);
2191         if(out_x != x)
2192                 draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, zoom_track, color);
2193 }
2194
2195 inline int quantize(float f) { return (int)floor(f + 0.5); }
2196
2197 inline void TrackCanvas::draw_floatauto_ctrlpoint(
2198         int x, int y, int cp_x, int cp_y, int center_pixel,
2199         int zoom_track, int color)
2200 // draw the tangent and a handle for given b├ęzier ctrl point
2201 {
2202         bool handle_visible = (abs(cp_y) <= zoom_track / 2);
2203
2204         float slope = (float)(cp_y - y)/(cp_x - x);
2205         CLAMP(cp_y, -zoom_track / 2, zoom_track / 2);
2206         if(slope != 0)
2207                 cp_x = x + quantize((cp_y - y) / slope);
2208
2209         y    += center_pixel;
2210         cp_y += center_pixel;
2211         
2212         // drawing the tangent as a dashed line...
2213         int const dash = HANDLE_W;
2214         int const gap  = HANDLE_W / 2;
2215         float sx = 3 * (cp_x - x) / 4.;
2216         float ex = 0;
2217         
2218         // q is the x displacement for a unit line of slope
2219         float q = (sx > 0 ? 1 : -1) / sqrt(1 + slope * slope);
2220         
2221         float dist = 1/q * sx;
2222         if( dist > dash )
2223                 ex = sx - q * dash;
2224         
2225         set_color(color);
2226         do {    
2227                 float sy = slope * sx, ey = slope * ex;
2228                 draw_line(quantize(sx + x), quantize(sy + y), quantize(ex + x), quantize(ey + y));
2229                 sx = ex - q * gap;
2230                 ex = sx - q * dash;
2231         } while(q*ex > 0);
2232
2233         if(handle_visible)
2234         {
2235                 int r = HANDLE_W / 2;
2236                 int cp_x1 = cp_x - r;
2237                 int cp_y1 = cp_y - r;
2238                 set_color(BLACK);
2239                 draw_disc(cp_x1, cp_y1, 2 * r, 2 * r);
2240                 set_color(color);
2241                 draw_circle(cp_x1, cp_y1, 2 * r, 2 * r);
2242         }
2243 }
2244
2245
2246 int TrackCanvas::test_auto(Auto *current,
2247         int x, int y, int center_pixel, int zoom_track,
2248         int cursor_x, int cursor_y, int buttonpress)
2249 {
2250         int x1, y1, x2, y2;
2251         int result = 0;
2252
2253         x1 = x - HANDLE_W / 2;
2254         x2 = x + HANDLE_W / 2;
2255         y1 = center_pixel + y - HANDLE_H / 2;
2256         y2 = center_pixel + y + HANDLE_H / 2;
2257         int ymin = center_pixel - zoom_track / 2;
2258         int ymax = center_pixel + zoom_track / 2;
2259         CLAMP(y1, ymin, ymax);
2260         CLAMP(y2, ymin, ymax);
2261
2262         if(cursor_x >= x1 && cursor_x < x2 && cursor_y >= y1 && cursor_y < y2)
2263         {
2264                 if(buttonpress && buttonpress != 3)
2265                 {
2266                         mwindow->session->drag_auto = current;
2267                         mwindow->session->drag_start_percentage = (float)((IntAuto*)current)->value;
2268                         // Toggle Autos don't respond to vertical zoom, they always show up
2269                         // with "on" == 100% == line on top
2270                         mwindow->session->drag_start_position = current->position;
2271                         mwindow->session->drag_origin_x = cursor_x;
2272                         mwindow->session->drag_origin_y = cursor_y;
2273                 }
2274                 result = 1;
2275         }
2276
2277         if(buttonpress && buttonpress != 3 && result)
2278         {
2279 //printf("TrackCanvas::test_auto %d\n", __LINE__);
2280                 mwindow->undo->update_undo_before();
2281         }
2282
2283         return result;
2284 }
2285
2286 // some Helpers for test_floatauto(..)
2287 // and for dragging the tangents/ctrl points
2288 inline float test_curve_line( int x0, int y0, int ctrl_x, int ctrl_y,
2289         float cursor_x, float cursor_y)
2290 {
2291 // Control point switched off?
2292         if( x0 == ctrl_x ) return 0.0;
2293         double x1 = ctrl_x-x0, y1 = ctrl_y-y0;
2294         double x = cursor_x-x0, y = cursor_y-y0;
2295 // wrong side of ctrl handle
2296         if( x*x1 < 0 ) return 0.0;
2297 // outside handle radius
2298         if( (x*x + y*y) > (x1*x1 + y1*y1) ) return 0;
2299         double xx1 = x1*x1, yy1 = y1*y1;
2300         double xx = x*x, yy = y*y;
2301 // distance squared from cursor to cursor projected to line from ctrl to handle
2302 //   along a line perpendicular to line from ctrl to handle (closest approach)
2303 // (x**2*y1**2 - 2*x*x1*y*y1 + x1**2*y**2)/(x1**2 + y1**2)
2304         double dist2 = (xx*yy1 - 2*x*x1*y*y1 + xx1*yy)/(xx1 + yy1);
2305         return dist2 < (HANDLE_W*HANDLE_W)/4. ? x/x1 : 0.;
2306 }
2307
2308
2309 inline 
2310 float levered_position(float position, float ref_pos)
2311 {
2312         if( 1e-6 > fabs(ref_pos) || isnan(ref_pos)) 
2313                 return 0.0;
2314         return ref_pos / position;
2315 }
2316
2317
2318 float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
2319 // transforms automation value into current display coords,
2320 // dependant on current automation display range for the given kind of automation
2321 {
2322         if(!mwindow || !mwindow->edl) return 0;
2323         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2324         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2325         float automation_range = automation_max - automation_min;
2326         if( 0 >= automation_range || isnan(auto_value) || isinf(auto_value) )
2327                 return 0;
2328         return (auto_value - automation_min) / automation_range;
2329 }
2330
2331
2332
2333 int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
2334         int in_y, int out_x, int out_y, int center_pixel, int zoom_track, 
2335         int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
2336 {
2337         int result = 0;
2338
2339         int x1 = x - HANDLE_W / 2;
2340         int x2 = x + HANDLE_W / 2;
2341         int y1 = center_pixel + y - HANDLE_W / 2;
2342         int y2 = center_pixel + y + HANDLE_W / 2;
2343         int ymin = center_pixel - zoom_track / 2;
2344         int ymax = center_pixel + zoom_track / 2;
2345         CLAMP(y1, ymin, ymax);
2346         CLAMP(y2, ymin, ymax);
2347
2348         int in_x1 = in_x - HANDLE_W / 2;
2349         int in_x2 = in_x + HANDLE_W / 2;
2350         int in_y1 = center_pixel + in_y - HANDLE_W / 2;
2351         int in_y2 = center_pixel + in_y + HANDLE_W / 2;
2352         CLAMP(in_y1, ymin, ymax);
2353         CLAMP(in_y2, ymin, ymax);
2354
2355         int out_x1 = out_x - HANDLE_W / 2;
2356         int out_x2 = out_x + HANDLE_W / 2;
2357         int out_y1 = center_pixel + out_y - HANDLE_W / 2;
2358         int out_y2 = center_pixel + out_y + HANDLE_W / 2;
2359         CLAMP(out_y1, ymin, ymax);
2360         CLAMP(out_y2, ymin, ymax);
2361
2362
2363 //printf("TrackCanvas::test_floatauto %d %d %d %d %d %d\n", cursor_x, cursor_y, x1, x2, y1, y2);
2364 // buttonpress could be the start of a drag operation
2365 #define INIT_DRAG(POS,VAL) \
2366                 mwindow->session->drag_auto = current;      \
2367                 mwindow->session->drag_origin_x = cursor_x;  \
2368                 mwindow->session->drag_origin_y = cursor_y;   \
2369                 mwindow->session->drag_start_position = (POS); \
2370                 mwindow->session->drag_start_percentage = (VAL);
2371
2372 #define WITHIN(X1,X2,Y1,Y2) (cursor_x >=(X1) && cursor_x <(X2) && cursor_y >=(Y1) && cursor_y <(Y2) )
2373
2374
2375 // without modifier we are manipulating the automation node
2376 // with ALT it's about dragging only the value of the node
2377 // with SHIFT the value snaps to the value of neighbouring nodes
2378 // CTRL indicates we are rather manipulating the tangent(s) of the node
2379
2380         if(!ctrl_down())
2381         {
2382                 if( WITHIN(x1,x2,y1,y2))
2383                 {       // cursor hits node
2384                         result = 1;
2385                         
2386                         if(buttonpress && (buttonpress != 3))
2387                         {
2388                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2389                                 mwindow->session->drag_handle = 0;
2390                 }       }
2391         }
2392         else // ctrl_down()
2393         {
2394                 if( WITHIN(x1,x2,y1,y2))
2395                 {
2396                         result = 1;
2397                         if(buttonpress && (buttonpress != 3))
2398                         {
2399                                 // could be ctrl-click or ctrl-drag
2400                                 // click would cycle through tangent modes
2401                                 ((FloatAuto*)current)->toggle_curve_mode();
2402                                 
2403                                 // drag will start dragging the tangent, if applicable
2404                                 INIT_DRAG(current->position, value_to_percentage(current->get_value(), autogrouptype))
2405                                 mwindow->session->drag_handle = 0;
2406                         }
2407                 }
2408                         
2409                 float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
2410
2411 // Test in control
2412                 if( in_x != x && current->position > 0 &&
2413                         (FloatAuto::FREE == current->curve_mode ||
2414                          FloatAuto::TFREE == current->curve_mode))
2415 // act on in control handle only if
2416 // tangent is significant and is editable (not automatically choosen)
2417                 {
2418                         lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
2419  // either cursor in ctrl-point handle or cursor on tangent line
2420                         if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
2421                                 result = 1;
2422                                 if(buttonpress && (buttonpress != 3)) {
2423                                         if(lever == 0.0) lever=1.0; // we entered by dragging the handle...
2424 //                                      lever = 1.0;
2425                                         mwindow->session->drag_handle = 1;
2426                                         float new_invalue = current->get_value() + lever * current->get_control_in_value();
2427                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_in_position()),
2428                                                   value_to_percentage(new_invalue, autogrouptype))
2429                                 }
2430                         }
2431                 }
2432
2433 // Test out control
2434                 if(out_x != x &&
2435                         (FloatAuto::FREE == current->curve_mode ||
2436                          FloatAuto::TFREE == current->curve_mode))
2437 // act on out control only if tangent is significant and is editable
2438                 {
2439                         lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
2440                         if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
2441                                 result = 1;
2442                                 if(buttonpress && (buttonpress != 3)) {
2443                                         if(lever == 0.0) lever=1.0;
2444 //                                      lever = 1.0;
2445                                         mwindow->session->drag_handle = 2;
2446                                         float new_outvalue = current->get_value() + lever * current->get_control_out_value();
2447                                         INIT_DRAG(current->position + (int64_t)(lever * current->get_control_out_position()),
2448                                                   value_to_percentage(new_outvalue, autogrouptype))
2449                                 }
2450                         }
2451                 }
2452         } // end ctrl_down()
2453
2454 #undef WITHIN
2455 #undef INIT_DRAG
2456
2457 // if(buttonpress) 
2458 // 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", 
2459 // mwindow->session->drag_handle,
2460 // ctrl_down(),
2461 // cursor_x,
2462 // cursor_y,
2463 // x1, x2, y1, y2);
2464         if(buttonpress && (buttonpress != 3) && result)
2465         {
2466                 mwindow->undo->update_undo_before();
2467         }
2468
2469         return result;
2470 }
2471
2472
2473 // Get the float value & y for position x on the canvas
2474 #define X_TO_FLOATLINE(x) \
2475         int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
2476         int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
2477 /* Call by reference fails for some reason here */ \
2478         float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
2479         float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
2480         double position = unit_start + x * zoom_units; \
2481         double value = 0; \
2482         if(position2 > position1) \
2483         { \
2484                 value = value1 + \
2485                         (value2 - value1) * \
2486                         (position - position1) / \
2487                         (position2 - position1); \
2488         } \
2489         else \
2490         { \
2491                 value = value1; \
2492         } \
2493         AUTOMATIONCLAMPS(value, autogrouptype); \
2494         int y = center_pixel + \
2495                 (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
2496
2497
2498 void TrackCanvas::draw_floatline(int center_pixel,
2499         FloatAuto *previous, FloatAuto *next, FloatAutos *autos,
2500         double unit_start, double zoom_units, double yscale,
2501         int x1, int y1, int x2, int y2,
2502         int color, int autogrouptype)
2503 {
2504 // Solve bezier equation for either every pixel or a certain large number of
2505 // points.
2506
2507 // Not using slope intercept
2508         x1 = MAX(0, x1);
2509         int prev_y = y1;
2510
2511
2512 // Call by reference fails for some reason here
2513         FloatAuto *previous1 = previous, *next1 = next;
2514         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2515         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2516         float automation_range = automation_max - automation_min;
2517
2518         for(int x = x1; x < x2; x++)
2519         {
2520 // Interpolate value between frames
2521                 X_TO_FLOATLINE(x)
2522
2523                 if(/* x > x1 && */
2524                         y >= center_pixel - yscale / 2 &&
2525                         y < center_pixel + yscale / 2 - 1)
2526                 {
2527 // printf("TrackCanvas::draw_floatline y=%d min=%d max=%d\n",
2528 // y,
2529 // (int)(center_pixel - yscale / 2),
2530 // (int)(center_pixel + yscale / 2 - 1));
2531
2532                         draw_line(x - 1, prev_y  , x, y   );
2533                 }
2534                 prev_y = y;
2535         }
2536 }
2537
2538
2539
2540
2541
2542 int TrackCanvas::test_floatline(int center_pixel,
2543                 FloatAutos *autos,
2544                 double unit_start,
2545                 double zoom_units,
2546                 double yscale,
2547                 int x1,
2548                 int x2,
2549                 int cursor_x,
2550                 int cursor_y,
2551                 int buttonpress,
2552                 int autogrouptype)
2553 {
2554         int result = 0;
2555
2556
2557         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2558         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2559         float automation_range = automation_max - automation_min;
2560         FloatAuto *previous1 = 0, *next1 = 0;
2561         X_TO_FLOATLINE(cursor_x);
2562
2563         if(cursor_x >= x1 &&
2564                 cursor_x < x2 &&
2565                 cursor_y >= y - HANDLE_W / 2 &&
2566                 cursor_y < y + HANDLE_W / 2 &&
2567                 !ctrl_down())
2568         {
2569                 result = 1;
2570
2571 // Menu
2572                 if(buttonpress == 3)
2573                 {
2574                 }
2575                 else
2576 // Create keyframe
2577                 if(buttonpress)
2578                 {
2579                         Auto *current;
2580                         mwindow->undo->update_undo_before();
2581                         current = mwindow->session->drag_auto = autos->insert_auto(position1);
2582                         ((FloatAuto*)current)->set_value(value);
2583                         mwindow->session->drag_start_percentage = value_to_percentage(value, autogrouptype);
2584                         mwindow->session->drag_start_position = current->position;
2585                         mwindow->session->drag_origin_x = cursor_x;
2586                         mwindow->session->drag_origin_y = cursor_y;
2587                         mwindow->session->drag_handle = 0;
2588                 }
2589         }
2590
2591
2592         return result;
2593 }
2594
2595
2596 void TrackCanvas::synchronize_autos(float change,
2597                 Track *skip, FloatAuto *fauto, int fill_gangs)
2598 {
2599 // Handles the special case of modifying a fadeauto
2600 // when there are ganged faders on several tracks
2601 // (skip and fauto may be NULL if fill_gangs==-1)
2602
2603         if( fill_gangs > 0 && skip->gang ) {
2604                 double position = skip->from_units(fauto->position);
2605                 int autoidx = fauto->autos->autoidx;
2606
2607                 for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
2608                         if( (current->data_type == skip->data_type || get_double_click()) &&
2609                             current->gang && current->record && current != skip ) {
2610                                 int64_t current_position = current->to_units(position, 1);
2611                                 FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
2612                                 float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
2613                                 float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
2614                                 FloatAuto *previous = 0, *next = 0;
2615                                 FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(current_position);
2616                                 if( !keyframe ) {
2617 // create keyframe on neighbouring track at the point in time given by fauto
2618                                         float init_value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
2619                                         float new_value = init_value + change;
2620                                         CLAMP(new_value, auto_min, auto_max);
2621                                         keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
2622                                         keyframe->set_value(new_value);
2623                                 }
2624                                 else {
2625 // keyframe exists, just change it
2626                                         float new_value = keyframe->get_value() + change;
2627                                         CLAMP(new_value, auto_min, auto_max);
2628                                         keyframe->adjust_to_new_coordinates(current_position, new_value);
2629 // need to (re)set the position, as the existing node could be on a "equivalent" position (within half a frame)
2630                                 }
2631
2632                                 mwindow->session->drag_auto_gang->append((Auto *)keyframe);
2633                         }
2634                 }
2635         }
2636         else if( !fill_gangs ) {
2637                 double position = skip->from_units(fauto->position);
2638 // Move the gangs
2639                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2640                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2641                         int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
2642                         float new_value = keyframe->get_value() + change;
2643                         CLAMP(new_value,
2644                               mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
2645                               mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
2646                         keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
2647                 }
2648
2649         }
2650         else {
2651 // remove the gangs
2652                 for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
2653                         FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
2654                         keyframe->autos->remove_nonsequential(
2655                                         keyframe);
2656                 }
2657                 mwindow->session->drag_auto_gang->remove_all();
2658         }
2659 }
2660
2661
2662 void TrackCanvas::draw_toggleline(int center_pixel,
2663         int x1,
2664         int y1,
2665         int x2,
2666         int y2)
2667 {
2668         draw_line(x1, center_pixel + y1, x2, center_pixel + y1);
2669
2670         if(y2 != y1)
2671         {
2672                 draw_line(x2, center_pixel + y1, x2, center_pixel + y2);
2673         }
2674 }
2675
2676 int TrackCanvas::test_toggleline(Autos *autos,
2677         int center_pixel,
2678         int x1,
2679         int y1,
2680         int x2,
2681         int y2,
2682         int cursor_x,
2683         int cursor_y,
2684         int buttonpress)
2685 {
2686         int result = 0;
2687         if(cursor_x >= x1 && cursor_x < x2)
2688         {
2689                 int miny = center_pixel + y1 - HANDLE_W / 2;
2690                 int maxy = center_pixel + y1 + HANDLE_W / 2;
2691                 if(cursor_y >= miny && cursor_y < maxy)
2692                 {
2693                         result = 1;
2694
2695 // Menu
2696                         if(buttonpress == 3)
2697                         {
2698                         }
2699                         else
2700 // Insert keyframe
2701                         if(buttonpress)
2702                         {
2703                                 Auto *current;
2704                                 double position = (double)(cursor_x +
2705                                                 mwindow->edl->local_session->view_start[pane->number]) *
2706                                         mwindow->edl->local_session->zoom_sample /
2707                                         mwindow->edl->session->sample_rate;
2708                                 int64_t unit_position = autos->track->to_units(position, 0);
2709                                 int new_value = (int)((IntAutos*)autos)->get_automation_constant(unit_position, unit_position);
2710
2711                                 mwindow->undo->update_undo_before();
2712
2713                                 current = mwindow->session->drag_auto = autos->insert_auto(unit_position);
2714                                 ((IntAuto*)current)->value = new_value;
2715                                 // Toggle Autos don't respond to vertical zoom, they always show up
2716                                 // with "on" == 100% == line on top
2717                                 mwindow->session->drag_start_percentage = (float)new_value;
2718                                 mwindow->session->drag_start_position = current->position;
2719                                 mwindow->session->drag_origin_x = cursor_x;
2720                                 mwindow->session->drag_origin_y = cursor_y;
2721                         }
2722                 }
2723         };
2724
2725         return result;
2726 }
2727
2728 void TrackCanvas::calculate_viewport(Track *track,
2729         double &view_start,   // Seconds
2730         double &unit_start,
2731         double &view_end,     // Seconds
2732         double &unit_end,
2733         double &yscale,
2734         int &center_pixel,
2735         double &zoom_sample,
2736         double &zoom_units)
2737 {
2738         view_start = (double)mwindow->edl->local_session->view_start[pane->number] *
2739                 mwindow->edl->local_session->zoom_sample /
2740                 mwindow->edl->session->sample_rate;
2741         unit_start = track->to_doubleunits(view_start);
2742         view_end = (double)(mwindow->edl->local_session->view_start[pane->number] +
2743                 get_w()) *
2744                 mwindow->edl->local_session->zoom_sample /
2745                 mwindow->edl->session->sample_rate;
2746         unit_end = track->to_doubleunits(view_end);
2747         yscale = mwindow->edl->local_session->zoom_track;
2748 //printf("TrackCanvas::calculate_viewport yscale=%.0f\n", yscale);
2749         center_pixel = (int)(track->y_pixel -
2750                         mwindow->edl->local_session->track_start[pane->number] +
2751                         yscale / 2) +
2752                 (mwindow->edl->session->show_titles ?
2753                         mwindow->theme->get_image("title_bg_data")->get_h() :
2754                         0);
2755         zoom_sample = mwindow->edl->local_session->zoom_sample;
2756
2757         zoom_units = track->to_doubleunits(zoom_sample / mwindow->edl->session->sample_rate);
2758 }
2759
2760 float TrackCanvas::percentage_to_value(float percentage,
2761         int is_toggle,
2762         Auto *reference,
2763         int autogrouptype)
2764 {
2765         float result;
2766         if(is_toggle)
2767         {
2768                 if(percentage > 0.5)
2769                         result = 1;
2770                 else
2771                         result = 0;
2772         }
2773         else
2774         {
2775                 float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2776                 float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2777                 float automation_range = automation_max - automation_min;
2778
2779                 result = percentage * automation_range + automation_min;
2780                 if(reference)
2781                 {
2782                         FloatAuto *ptr = (FloatAuto*)reference;
2783                         result -= ptr->get_value();
2784                 }
2785 //printf("TrackCanvas::percentage_to_value %d %f\n", __LINE__, result);
2786         }
2787         return result;
2788 }
2789
2790
2791 void TrackCanvas::calculate_auto_position(double *x, double *y,
2792         double *in_x, double *in_y, double *out_x, double *out_y,
2793         Auto *current, double unit_start, double zoom_units, double yscale,
2794         int autogrouptype)
2795 {
2796         float automation_min = mwindow->edl->local_session->automation_mins[autogrouptype];
2797         float automation_max = mwindow->edl->local_session->automation_maxs[autogrouptype];
2798         float automation_range = automation_max - automation_min;
2799         FloatAuto *ptr = (FloatAuto*)current;
2800         *x = (double)(ptr->position - unit_start) / zoom_units;
2801         *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
2802
2803         if(in_x) {
2804 //              *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
2805                 *in_x = (double)(ptr->position + ptr->get_control_in_position() - unit_start) / zoom_units;
2806         }
2807
2808         if(in_y) {
2809                 *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
2810                                 automation_min) / automation_range - 0.5) * -yscale;
2811         }
2812
2813         if(out_x) {
2814 //              *out_x = EQUIV(ptr->control_out_value, 0.0) ? *x : *x + mwindow->theme->control_pixels;
2815                 *out_x = (double)(ptr->position + ptr->get_control_out_position() - unit_start) / zoom_units;
2816         }
2817
2818         if(out_y) {
2819                 *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
2820                                  automation_min) / automation_range - 0.5) * -yscale;
2821         }
2822 }
2823
2824
2825 int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y,
2826                 int draw, int buttonpress, int x_offset, int y_offset, int color,
2827                 Auto* &auto_instance, int autogrouptype)
2828 {
2829         int result = 0;
2830         int center_pixel, draw_auto;
2831         double view_start, unit_start;
2832         double view_end, unit_end, yscale;
2833         double zoom_sample, zoom_units;
2834         double in_x2, in_y2, out_x2, out_y2;
2835         double slope;
2836         //int skip = 0;
2837
2838         auto_instance = 0;
2839
2840         if(draw) set_color(color);
2841
2842         calculate_viewport(track, view_start, unit_start, view_end, unit_end,
2843                         yscale, center_pixel, zoom_sample, zoom_units);
2844
2845 // Get first auto before start
2846         Auto *current = 0, *previous = 0;
2847
2848         for( current = autos->last;
2849                 current && current->position >= unit_start;
2850                 current = PREVIOUS ) ;
2851
2852         Auto *first_auto = current ? current :
2853                  autos->first ? autos->first : autos->default_auto;
2854
2855         double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
2856         if( first_auto )
2857                 calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
2858                         first_auto, unit_start, zoom_units, yscale, autogrouptype);
2859
2860         if( current )
2861                 current = NEXT;
2862         else {
2863                 current = autos->first;
2864                 ax = 0;
2865         }
2866
2867         do {
2868                 //skip = 0;
2869                 draw_auto = 1;
2870
2871                 if(current) {
2872                         calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
2873                                 current, unit_start, zoom_units, yscale, autogrouptype);
2874                 }
2875                 else {
2876                         ax2 = get_w();
2877                         ay2 = ay;
2878                         //skip = 1;
2879                 }
2880
2881                 slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
2882
2883                 if(ax2 > get_w()) {
2884                         draw_auto = 0;
2885                         ax2 = get_w();
2886                         ay2 = ay + slope * (get_w() - ax);
2887                 }
2888
2889                 if(ax < 0) {
2890                         ay = ay + slope * (0 - ax);
2891                         ax = 0;
2892                 }
2893
2894 // Draw or test handle
2895                 if( current && !result && current != autos->default_auto ) {
2896                         if( !draw && track->record ) {
2897                                 result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
2898                                         (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
2899                                         (int)center_pixel, (int)yscale, cursor_x, cursor_y,
2900                                         buttonpress, autogrouptype);
2901                                 if( result )
2902                                         auto_instance = current;
2903                         }
2904                         if( draw && draw_auto ) {
2905                                 draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
2906                                         (int)in_x2 + x_offset, (int)in_y2,
2907                                         (int)out_x2 + x_offset, (int)out_y2,
2908                                         (int)center_pixel + y_offset, (int)yscale, color);
2909                         }
2910                 }
2911
2912 // Draw or test joining line
2913                 if( !draw && !result && track->record /* && buttonpress != 3 */ ) {
2914                         result = test_floatline(center_pixel,
2915                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
2916 // Exclude auto coverage from the end of the line.  The auto overlaps
2917                                 (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
2918                                 buttonpress, autogrouptype);
2919                 }
2920                 if( draw )
2921                         draw_floatline(center_pixel, (FloatAuto*)previous, (FloatAuto*)current,
2922                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
2923                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
2924                                 color, autogrouptype);
2925
2926                 if( current ) {
2927                         previous = current;
2928                         current = NEXT;
2929                 }
2930
2931                 ax = ax2;  ay = ay2;
2932         } while( current && current->position <= unit_end && !result );
2933
2934         if( ax < get_w() && !result ) {
2935                 ax2 = get_w();  ay2 = ay;
2936                 if(!draw && track->record /* && buttonpress != 3 */ ) {
2937                         result = test_floatline(center_pixel,
2938                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
2939                                 (int)ax, (int)ax2, cursor_x, cursor_y,
2940                                 buttonpress, autogrouptype);
2941                 }
2942                 if( draw ) 
2943                         draw_floatline(center_pixel,
2944                                 (FloatAuto*)previous, (FloatAuto*)current,
2945                                 (FloatAutos*)autos, unit_start, zoom_units, yscale,
2946                                 (int)ax, (int)ay, (int)ax2, (int)ay2,
2947                                 color, autogrouptype);
2948         }
2949
2950         return result;
2951 }
2952
2953
2954 int TrackCanvas::do_int_autos(Track *track,
2955                 Autos *autos,
2956                 int cursor_x,
2957                 int cursor_y,
2958                 int draw,
2959                 int buttonpress,
2960                 int x_offset,
2961                 int y_offset,
2962                 int color,
2963                 Auto *&auto_instance)
2964 {
2965         int result = 0;
2966         double view_start;
2967         double unit_start;
2968         double view_end;
2969         double unit_end;
2970         double yscale;
2971         int center_pixel;
2972         double zoom_sample;
2973         double zoom_units;
2974         double ax, ay, ax2, ay2;
2975
2976         auto_instance = 0;
2977
2978         if(draw) set_color(color);
2979
2980         calculate_viewport(track,
2981                 view_start,
2982                 unit_start,
2983                 view_end,
2984                 unit_end,
2985                 yscale,
2986                 center_pixel,
2987                 zoom_sample,
2988                 zoom_units);
2989
2990
2991         double high = -yscale * 0.8 / 2;
2992         double low = yscale * 0.8 / 2;
2993
2994 // Get first auto before start
2995         Auto *current;
2996         for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
2997                 ;
2998
2999         if(current)
3000         {
3001                 ax = 0;
3002                 ay = ((IntAuto*)current)->value > 0 ? high : low;
3003                 current = NEXT;
3004         }
3005         else
3006         {
3007                 current = autos->first ? autos->first : autos->default_auto;
3008                 if(current)
3009                 {
3010                         ax = 0;
3011                         ay = ((IntAuto*)current)->value > 0 ? high : low;
3012                 }
3013                 else
3014                 {
3015                         ax = 0;
3016                         ay = yscale;
3017                 }
3018         }
3019
3020         do
3021         {
3022                 if(current)
3023                 {
3024                         ax2 = (double)(current->position - unit_start) / zoom_units;
3025                         ay2 = ((IntAuto*)current)->value > 0 ? high : low;
3026                 }
3027                 else
3028                 {
3029                         ax2 = get_w();
3030                         ay2 = ay;
3031                 }
3032
3033                 if(ax2 > get_w()) ax2 = get_w();
3034
3035                 if(current && !result)
3036                 {
3037                         if(current != autos->default_auto)
3038                         {
3039                                 if(!draw)
3040                                 {
3041                                         if(track->record)
3042                                         {
3043                                                 result = test_auto(current,
3044                                                         (int)ax2,
3045                                                         (int)ay2,
3046                                                         (int)center_pixel,
3047                                                         (int)yscale,
3048                                                         cursor_x,
3049                                                         cursor_y,
3050                                                         buttonpress);
3051                                                 if (result)
3052                                                         auto_instance = current;
3053                                         }
3054                                 }
3055                                 else
3056                                         draw_auto(current,
3057                                                 (int)ax2 + x_offset,
3058                                                 (int)ay2 + y_offset,
3059                                                 (int)center_pixel,
3060                                                 (int)yscale);
3061                         }
3062
3063                         current = NEXT;
3064                 }
3065
3066                 if(!draw)
3067                 {
3068                         if(!result)
3069                         {
3070                                 if(track->record /* && buttonpress != 3 */)
3071                                 {
3072                                         result = test_toggleline(autos,
3073                                                 center_pixel,
3074                                                 (int)ax,
3075                                                 (int)ay,
3076                                                 (int)ax2,
3077                                                 (int)ay2,
3078                                                 cursor_x,
3079                                                 cursor_y,
3080                                                 buttonpress);
3081                                 }
3082                         }
3083                 }
3084                 else
3085                         draw_toggleline(center_pixel + y_offset,
3086                                 (int)ax,
3087                                 (int)ay,
3088                                 (int)ax2,
3089                                 (int)ay2);
3090
3091                 ax = ax2;
3092                 ay = ay2;
3093         }while(current && current->position <= unit_end && !result);
3094
3095         if(ax < get_w() && !result)
3096         {
3097                 ax2 = get_w();
3098                 ay2 = ay;
3099                 if(!draw)
3100                 {
3101                         if(track->record /* && buttonpress != 3 */)
3102                         {
3103                                 result = test_toggleline(autos,
3104                                         center_pixel,
3105                                         (int)ax,
3106                                         (int)ay,
3107                                         (int)ax2,
3108                                         (int)ay2,
3109                                         cursor_x,
3110                                         cursor_y,
3111                                         buttonpress);
3112                         }
3113                 }
3114                 else
3115     &