merge 2.0-ongoing into 3.0 @ 3581 - 3710
[ardour.git] / gtk2_ardour / region_view.cc
1 /*
2     Copyright (C) 2001-2006 Paul Davis 
3
4     This program is free software; you can redistribute it and/or modify
5     it under the terms of the GNU General Public License as published by
6     the Free Software Foundation; either version 2 of the License, or
7     (at your option) any later version.
8
9     This program is distributed in the hope that it will be useful,
10     but WITHOUT ANY WARRANTY; without even the implied warranty of
11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12     GNU General Public License for more details.
13
14     You should have received a copy of the GNU General Public License
15     along with this program; if not, write to the Free Software
16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17
18 */
19
20 #include <cmath>
21 #include <cassert>
22 #include <algorithm>
23
24 #include <gtkmm.h>
25
26 #include <gtkmm2ext/gtk_ui.h>
27 #include <pbd/stacktrace.h>
28
29 #include <ardour/playlist.h>
30 #include <ardour/audioregion.h>
31 #include <ardour/audiosource.h>
32 #include <ardour/audio_diskstream.h>
33
34 #include "ardour_ui.h"
35 #include "streamview.h"
36 #include "region_view.h"
37 #include "automation_region_view.h"
38 #include "route_time_axis.h"
39 #include "simplerect.h"
40 #include "simpleline.h"
41 #include "waveview.h"
42 #include "public_editor.h"
43 #include "region_editor.h"
44 #include "ghostregion.h"
45 #include "route_time_axis.h"
46 #include "utils.h"
47 #include "rgb_macros.h"
48 #include "gui_thread.h"
49
50 #include "i18n.h"
51
52 using namespace sigc;
53 using namespace ARDOUR;
54 using namespace PBD;
55 using namespace Editing;
56 using namespace ArdourCanvas;
57
58 static const int32_t sync_mark_width = 9;
59
60 sigc::signal<void,RegionView*> RegionView::RegionViewGoingAway;
61
62 RegionView::RegionView (ArdourCanvas::Group*              parent, 
63                         TimeAxisView&                     tv,
64                         boost::shared_ptr<ARDOUR::Region> r,
65                         double                            spu,
66                         Gdk::Color&                       basic_color)
67         : TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), false,
68
69                             TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
70                                                           TimeAxisViewItem::ShowNameHighlight|
71                                                           TimeAxisViewItem::ShowFrame))
72           , _region (r)
73           , sync_mark(0)
74           , sync_line(0)
75           , editor(0)
76           , current_visible_sync_position(0.0)
77           , valid(false)
78           , _enable_display(false)
79           , _pixel_width(1.0)
80           , in_destructor(false)
81           , wait_for_data(false)
82 {
83 }
84
85 RegionView::RegionView (const RegionView& other)
86         : TimeAxisViewItem (other)
87 {
88         /* derived concrete type will call init () */
89
90         _region = other._region;
91         current_visible_sync_position = other.current_visible_sync_position;
92         valid = false;
93         _pixel_width = other._pixel_width;
94         _height = other._height;
95 }
96
97 RegionView::RegionView (const RegionView& other, boost::shared_ptr<Region> other_region)
98         : TimeAxisViewItem (other)
99 {
100         /* this is a pseudo-copy constructor used when dragging regions 
101            around on the canvas.
102         */
103
104         /* derived concrete type will call init () */
105
106         _region = other_region;
107         current_visible_sync_position = other.current_visible_sync_position;
108         valid = false;
109         _pixel_width = other._pixel_width;
110         _height = other._height;
111 }
112
113 RegionView::RegionView (ArdourCanvas::Group*         parent, 
114                         TimeAxisView&                tv,
115                         boost::shared_ptr<ARDOUR::Region> r,
116                         double                       spu,
117                         Gdk::Color&                  basic_color,
118                                                 bool recording,
119                         TimeAxisViewItem::Visibility visibility)
120         : TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), recording, visibility)
121         , _region (r)
122         , sync_mark(0)
123         , sync_line(0)
124         , editor(0)
125         , current_visible_sync_position(0.0)
126         , valid(false)
127         , _enable_display(false)
128         , _pixel_width(1.0)
129         , in_destructor(false)
130         , wait_for_data(false)
131 {
132 }
133
134 void
135 RegionView::init (Gdk::Color& basic_color, bool wfd)
136 {
137         editor        = 0;
138         valid         = true;
139         in_destructor = false;
140         _height       = 0;
141         wait_for_data = wfd;
142         sync_mark     = 0;
143         sync_line     = 0;
144         sync_mark     = 0;
145         sync_line     = 0;
146
147         compute_colors (basic_color);
148
149         if (name_highlight) {
150                 name_highlight->set_data ("regionview", this);
151                 name_highlight->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_highlight_event), name_highlight, this));
152         }
153
154         if (name_text) {
155                 name_text->set_data ("regionview", this);
156         }
157
158         if (wfd)
159                 _enable_display = true;
160
161         set_height (trackview.current_height());
162
163         _region->StateChanged.connect (mem_fun(*this, &RegionView::region_changed));
164
165         group->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
166
167         set_colors ();
168
169         ColorsChanged.connect (mem_fun (*this, &RegionView::color_handler));
170
171         /* XXX sync mark drag? */
172 }
173
174 RegionView::~RegionView ()
175 {
176         in_destructor = true;
177
178         for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
179                 delete *g;
180         }
181
182         if (editor) {
183                 delete editor;
184         }
185 }
186
187 gint
188 RegionView::_lock_toggle (ArdourCanvas::Item* item, GdkEvent* ev, void* arg)
189 {
190         switch (ev->type) {
191         case GDK_BUTTON_RELEASE:
192                 static_cast<RegionView*>(arg)->lock_toggle ();
193                 return TRUE;
194                 break;
195         default:
196                 break;
197         } 
198         return FALSE;
199 }
200
201 void
202 RegionView::lock_toggle ()
203 {
204         _region->set_locked (!_region->locked());
205 }
206
207 void
208 RegionView::region_changed (Change what_changed)
209 {
210         ENSURE_GUI_THREAD (bind (mem_fun(*this, &RegionView::region_changed), what_changed));
211
212         if (what_changed & BoundsChanged) {
213                 region_resized (what_changed);
214                 region_sync_changed ();
215         }
216         if (what_changed & Region::MuteChanged) {
217                 region_muted ();
218         }
219         if (what_changed & Region::OpacityChanged) {
220                 region_opacity ();
221         }
222         if (what_changed & ARDOUR::NameChanged) {
223                 region_renamed ();
224         }
225         if (what_changed & Region::SyncOffsetChanged) {
226                 region_sync_changed ();
227         }
228         /* 
229            this should not be needed now that only playlist can change layering
230         */
231         /*
232         if (what_changed & Region::LayerChanged) {
233                 // this is handled by the playlist i believe
234                 //region_layered ();
235         }
236         */
237         if (what_changed & Region::LockChanged) {
238                 region_locked ();
239         }
240 }
241
242 void
243 RegionView::region_locked ()
244 {
245         /* name will show locked status */
246         region_renamed ();
247 }
248
249 void
250 RegionView::region_resized (Change what_changed)
251 {
252         double unit_length;
253
254         if (what_changed & ARDOUR::PositionChanged) {
255                 set_position (_region->position(), 0);
256         }
257
258         if (what_changed & Change (StartChanged|LengthChanged)) {
259
260                 set_duration (_region->length(), 0);
261
262                 unit_length = _region->length() / samples_per_unit;
263                 
264                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
265
266                         (*i)->set_duration (unit_length);
267
268                 }
269         }
270 }
271
272 void
273 RegionView::reset_width_dependent_items (double pixel_width)
274 {
275         TimeAxisViewItem::reset_width_dependent_items (pixel_width);
276         _pixel_width = pixel_width;
277
278         /*for (AutomationChildren::iterator i = _automation_children.begin();
279                         i != _automation_children.end(); ++i) {
280                 i->second->reset_width_dependent_items(pixel_width);
281         }*/
282 }
283
284 void
285 RegionView::region_layered ()
286 {
287         RouteTimeAxisView *rtv = dynamic_cast<RouteTimeAxisView*>(&get_time_axis_view());
288         assert(rtv);
289         //rtv->view()->region_layered (this);
290 }
291         
292 void
293 RegionView::region_muted ()
294 {
295         set_frame_color ();
296         region_renamed ();
297 }
298
299 void
300 RegionView::region_opacity ()
301 {
302         set_frame_color ();
303 }
304
305 void
306 RegionView::raise_to_top ()
307 {
308         _region->raise_to_top ();
309 }
310
311 void
312 RegionView::lower_to_bottom ()
313 {
314         _region->lower_to_bottom ();
315 }
316
317 bool
318 RegionView::set_position (nframes_t pos, void* src, double* ignored)
319 {
320         double delta;
321         bool ret;
322
323         if (!(ret = TimeAxisViewItem::set_position (pos, this, &delta))) {
324                 return false;
325         }
326
327         if (ignored) {
328                 *ignored = delta;
329         }
330
331         if (delta) {
332                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
333                         (*i)->group->move (delta, 0.0);
334                 }
335         
336                 for (AutomationChildren::iterator i = _automation_children.begin();
337                                 i != _automation_children.end(); ++i) {
338                         i->second->get_canvas_group()->move(delta, 0.0);
339                 }
340         }
341
342         return ret;
343 }
344
345 void
346 RegionView::set_samples_per_unit (gdouble spu)
347 {
348         TimeAxisViewItem::set_samples_per_unit (spu);
349
350         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
351                 (*i)->set_samples_per_unit (spu);
352                 (*i)->set_duration (_region->length() / samples_per_unit);
353         }
354
355         region_sync_changed ();
356 }
357
358 bool
359 RegionView::set_duration (nframes_t frames, void *src)
360 {
361         if (!TimeAxisViewItem::set_duration (frames, src)) {
362                 return false;
363         }
364         
365         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
366                 (*i)->set_duration (_region->length() / samples_per_unit);
367         }
368
369         return true;
370 }
371
372 void
373 RegionView::compute_colors (Gdk::Color& basic_color)
374 {
375         TimeAxisViewItem::compute_colors (basic_color);
376 }
377
378 void
379 RegionView::set_colors ()
380 {
381         TimeAxisViewItem::set_colors ();
382         
383         if (sync_mark) {
384                 sync_mark->property_fill_color_rgba() = fill_color;
385                 sync_line->property_fill_color_rgba() = fill_color;
386         }
387 }
388
389 void
390 RegionView::set_frame_color ()
391 {
392         if (_region->opaque()) {
393                 fill_opacity = 130;
394         } else {
395                 fill_opacity = 60;
396         }
397
398         TimeAxisViewItem::set_frame_color ();
399 }
400
401 void
402 RegionView::fake_set_opaque (bool yn)
403 {
404        if (yn) {
405                fill_opacity = 130;
406        } else {
407                fill_opacity = 60;
408        }
409        
410        set_frame_color ();
411 }
412
413 void
414 RegionView::hide_region_editor()
415 {
416         if (editor) {
417                 editor->hide_all ();
418         }
419 }
420
421 Glib::ustring
422 RegionView::make_name () const
423 {
424         Glib::ustring str;
425
426         // XXX nice to have some good icons for this
427
428         if (_region->locked()) {
429                 str += '>';
430                 str += _region->name();
431                 str += '<';
432         } else if (_region->position_locked()) {
433                 str += '{';
434                 str += _region->name();
435                 str += '}';
436         } else {
437                 str = _region->name();
438         }
439
440         if (_region->muted()) {
441                 str = string ("!") + str;
442         }
443
444         return str;
445 }
446
447 void
448 RegionView::region_renamed ()
449 {
450         Glib::ustring str = make_name ();
451
452         set_item_name (str, this);
453         set_name_text (str);
454         reset_width_dependent_items (_pixel_width);
455 }
456
457 void
458 RegionView::region_sync_changed ()
459 {
460         int sync_dir;
461         nframes_t sync_offset;
462
463         sync_offset = _region->sync_offset (sync_dir);
464
465         if (sync_offset == 0) {
466                 /* no need for a sync mark */
467                 if (sync_mark) {
468                         sync_mark->hide();
469                         sync_line->hide ();
470                 }
471                 return;
472         }
473
474         if (!sync_mark) {
475
476                 /* points set below */
477                 
478                 sync_mark =  new ArdourCanvas::Polygon (*group);
479                 sync_mark->property_fill_color_rgba() = fill_color;
480
481                 sync_line = new ArdourCanvas::Line (*group);
482                 sync_line->property_fill_color_rgba() = fill_color;
483                 sync_line->property_width_pixels() = 1;
484         }
485
486         /* this has to handle both a genuine change of position, a change of samples_per_unit,
487            and a change in the bounds of the _region->
488          */
489
490         if (sync_offset == 0) {
491
492                 /* no sync mark - its the start of the region */
493                 
494                 sync_mark->hide();
495                 sync_line->hide ();
496
497         } else {
498
499                 if ((sync_dir < 0) || ((sync_dir > 0) && (sync_offset > _region->length()))) { 
500
501                         /* no sync mark - its out of the bounds of the region */
502
503                         sync_mark->hide();
504                         sync_line->hide ();
505
506                 } else {
507
508                         /* lets do it */
509
510                         Points points;
511                         
512                         //points = sync_mark->property_points().get_value();
513                         
514                         double offset = sync_offset / samples_per_unit;
515                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
516                         points.push_back (Gnome::Art::Point (offset + ((sync_mark_width-1)/2), 1));
517                         points.push_back (Gnome::Art::Point (offset, sync_mark_width - 1));
518                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));     
519                         sync_mark->property_points().set_value (points);
520                         sync_mark->show ();
521
522                         points.clear ();
523                         points.push_back (Gnome::Art::Point (offset, 0));
524                         points.push_back (Gnome::Art::Point (offset, trackview.current_height() - NAME_HIGHLIGHT_SIZE));
525
526                         sync_line->property_points().set_value (points);
527                         sync_line->show ();
528                 }
529         }
530 }
531
532 void
533 RegionView::move (double x_delta, double y_delta)
534 {
535         if (!_region->can_move() || (x_delta == 0 && y_delta == 0)) {
536                 return;
537         }
538
539         get_canvas_group()->move (x_delta, y_delta);
540
541         /* note: ghosts never leave their tracks so y_delta for them is always zero */
542
543         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
544                 (*i)->group->move (x_delta, 0.0);
545         }
546                 
547         for (AutomationChildren::iterator i = _automation_children.begin();
548                         i != _automation_children.end(); ++i) {
549                 i->second->get_canvas_group()->move(x_delta, 0.0);
550         }
551 }
552
553 void
554 RegionView::remove_ghost_in (TimeAxisView& tv)
555 {
556         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
557                 if (&(*i)->trackview == &tv) {
558                         delete *i;
559                         break;
560                 }
561         }
562 }
563
564 void
565 RegionView::remove_ghost (GhostRegion* ghost)
566 {
567         if (in_destructor) {
568                 return;
569         }
570
571         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
572                 if (*i == ghost) {
573                         ghosts.erase (i);
574                         break;
575                 }
576         }
577 }
578
579 uint32_t
580 RegionView::get_fill_color ()
581 {
582         return fill_color;
583 }
584
585 void
586 RegionView::set_height (double h)
587 {
588         if (sync_line) {
589                 Points points;
590                 int sync_dir;
591                 nframes_t sync_offset;
592                 sync_offset = _region->sync_offset (sync_dir);
593                 double offset = sync_offset / samples_per_unit;
594
595                 points.push_back (Gnome::Art::Point (offset, 0));
596                 points.push_back (Gnome::Art::Point (offset, h - NAME_HIGHLIGHT_SIZE));
597                 sync_line->property_points().set_value (points);
598         }
599 }