Fix corruption of follow playhead state on quit (#4048).
[ardour2.git] / gtk2_ardour / automation_streamview.cc
blob86388f527f93e7008bad6579ec8c426716220489
1 /*
2 Copyright (C) 2001-2007 Paul Davis
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.
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.
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.
19 #include <cmath>
20 #include <cassert>
21 #include <utility>
23 #include <gtkmm.h>
25 #include <gtkmm2ext/gtk_ui.h>
27 #include "ardour/midi_region.h"
28 #include "ardour/midi_source.h"
29 #include "ardour/region_factory.h"
31 #include "automation_streamview.h"
32 #include "region_view.h"
33 #include "automation_region_view.h"
34 #include "automation_time_axis.h"
35 #include "canvas-simplerect.h"
36 #include "region_selection.h"
37 #include "selection.h"
38 #include "public_editor.h"
39 #include "ardour_ui.h"
40 #include "rgb_macros.h"
41 #include "gui_thread.h"
42 #include "utils.h"
43 #include "simplerect.h"
44 #include "simpleline.h"
46 using namespace std;
47 using namespace ARDOUR;
48 using namespace PBD;
49 using namespace Editing;
51 AutomationStreamView::AutomationStreamView (AutomationTimeAxisView& tv)
52 : StreamView (*dynamic_cast<RouteTimeAxisView*>(tv.get_parent()),
53 new ArdourCanvas::Group(*tv.canvas_background()),
54 new ArdourCanvas::Group(*tv.canvas_display()))
55 , _automation_view(tv)
56 , _pending_automation_state (Off)
58 //canvas_rect->property_fill_color_rgba() = stream_base_color;
59 canvas_rect->property_outline_color_rgba() = RGBA_BLACK;
62 AutomationStreamView::~AutomationStreamView ()
67 RegionView*
68 AutomationStreamView::add_region_view_internal (boost::shared_ptr<Region> region, bool wfd, bool /*recording*/)
70 assert (region);
72 if (wfd) {
73 boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
74 if (mr) {
75 mr->midi_source()->load_model();
79 const boost::shared_ptr<AutomationControl> control = boost::dynamic_pointer_cast<AutomationControl> (
80 region->control (_automation_view.parameter(), true)
83 boost::shared_ptr<AutomationList> list;
84 if (control) {
85 list = boost::dynamic_pointer_cast<AutomationList>(control->list());
86 assert(!control->list() || list);
89 AutomationRegionView *region_view;
90 std::list<RegionView *>::iterator i;
92 for (i = region_views.begin(); i != region_views.end(); ++i) {
93 if ((*i)->region() == region) {
95 /* great. we already have an AutomationRegionView for this Region. use it again. */
96 AutomationRegionView* arv = dynamic_cast<AutomationRegionView*>(*i);;
98 if (arv->line())
99 arv->line()->set_list (list);
100 (*i)->set_valid (true);
101 (*i)->enable_display(wfd);
102 display_region(arv);
104 return 0;
108 region_view = new AutomationRegionView (
109 _canvas_group, _automation_view, region,
110 _automation_view.parameter (), list,
111 _samples_per_unit, region_color
114 region_view->init (region_color, false);
115 region_views.push_front (region_view);
117 /* follow global waveform setting */
119 if (wfd) {
120 region_view->enable_display(true);
121 //region_view->midi_region()->midi_source(0)->load_model();
124 display_region(region_view);
126 /* catch regionview going away */
127 region->DropReferences.connect (*this, invalidator (*this), boost::bind (&AutomationStreamView::remove_region_view, this, boost::weak_ptr<Region>(region)), gui_context());
129 /* setup automation state for this region */
130 boost::shared_ptr<AutomationLine> line = region_view->line ();
131 if (line && line->the_list()) {
132 line->the_list()->set_automation_state (automation_state ());
135 RegionViewAdded (region_view);
137 return region_view;
140 void
141 AutomationStreamView::display_region(AutomationRegionView* region_view)
143 region_view->line().reset();
146 void
147 AutomationStreamView::set_automation_state (AutoState state)
149 /* Setting the automation state for this view sets the state of all regions' lists to the same thing */
151 if (region_views.empty()) {
152 _pending_automation_state = state;
153 } else {
154 list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
156 for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
157 if ((*i)->the_list()) {
158 (*i)->the_list()->set_automation_state (state);
164 void
165 AutomationStreamView::redisplay_track ()
167 // Flag region views as invalid and disable drawing
168 for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
169 (*i)->set_valid (false);
170 (*i)->enable_display(false);
173 // Add and display region views, and flag them as valid
174 if (_trackview.is_track()) {
175 _trackview.track()->playlist()->foreach_region (
176 sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
180 // Stack regions by layer, and remove invalid regions
181 layer_regions();
185 void
186 AutomationStreamView::setup_rec_box ()
190 void
191 AutomationStreamView::color_handler ()
193 /*if (_trackview.is_midi_track()) {
194 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
197 if (!_trackview.is_midi_track()) {
198 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
202 AutoState
203 AutomationStreamView::automation_state () const
205 if (region_views.empty()) {
206 return _pending_automation_state;
209 boost::shared_ptr<AutomationLine> line = ((AutomationRegionView*) region_views.front())->line ();
210 if (!line || !line->the_list()) {
211 return Off;
214 return line->the_list()->automation_state ();
217 bool
218 AutomationStreamView::has_automation () const
220 list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
222 for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
223 if ((*i)->npoints() > 0) {
224 return true;
228 return false;
231 /** Our parent AutomationTimeAxisView calls this when the user requests a particular
232 * InterpolationStyle; tell the AutomationLists in our regions.
234 void
235 AutomationStreamView::set_interpolation (AutomationList::InterpolationStyle s)
237 list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
239 for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
240 (*i)->the_list()->set_interpolation (s);
244 AutomationList::InterpolationStyle
245 AutomationStreamView::interpolation () const
247 if (region_views.empty()) {
248 return AutomationList::Linear;
251 AutomationRegionView* v = dynamic_cast<AutomationRegionView*> (region_views.front());
252 assert (v);
254 return v->line()->the_list()->interpolation ();
257 /** Clear all automation displayed in this view */
258 void
259 AutomationStreamView::clear ()
261 list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
263 for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
264 (*i)->clear ();
268 /** @param start Start position in session frames.
269 * @param end End position in session frames.
270 * @param bot Bottom position expressed as a fraction of track height where 0 is the bottom of the track.
271 * @param top Top position expressed as a fraction of track height where 0 is the bottom of the track.
272 * NOTE: this y system is different to that for the StreamView method that this overrides, which is a little
273 * confusing.
275 void
276 AutomationStreamView::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
278 for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
279 AutomationRegionView* arv = dynamic_cast<AutomationRegionView*> (*i);
280 assert (arv);
281 arv->line()->get_selectables (start, end, botfrac, topfrac, results);
285 void
286 AutomationStreamView::set_selected_points (PointSelection& ps)
288 list<boost::shared_ptr<AutomationLine> > lines = get_lines ();
290 for (list<boost::shared_ptr<AutomationLine> >::iterator i = lines.begin(); i != lines.end(); ++i) {
291 (*i)->set_selected_points (ps);
295 list<boost::shared_ptr<AutomationLine> >
296 AutomationStreamView::get_lines () const
298 list<boost::shared_ptr<AutomationLine> > lines;
300 for (list<RegionView*>::const_iterator i = region_views.begin(); i != region_views.end(); ++i) {
301 AutomationRegionView* arv = dynamic_cast<AutomationRegionView*> (*i);
302 assert (arv);
303 lines.push_back (arv->line());
306 return lines;
309 struct RegionPositionSorter {
310 bool operator() (RegionView* a, RegionView* b) {
311 return a->region()->position() < b->region()->position();
316 /** @param pos Position, in session frames.
317 * @return AutomationLine to paste to for that position, or 0 if there is none appropriate.
319 boost::shared_ptr<AutomationLine>
320 AutomationStreamView::paste_line (framepos_t pos)
322 /* XXX: not sure how best to pick this; for now, just use the last region which starts before pos */
324 if (region_views.empty()) {
325 return boost::shared_ptr<AutomationLine> ();
328 region_views.sort (RegionPositionSorter ());
330 list<RegionView*>::const_iterator prev = region_views.begin ();
332 for (list<RegionView*>::const_iterator i = region_views.begin(); i != region_views.end(); ++i) {
333 if ((*i)->region()->position() > pos) {
334 break;
336 prev = i;
339 boost::shared_ptr<Region> r = (*prev)->region ();
341 /* If *prev doesn't cover pos, it's no good */
342 if (r->position() > pos || ((r->position() + r->length()) < pos)) {
343 return boost::shared_ptr<AutomationLine> ();
346 AutomationRegionView* arv = dynamic_cast<AutomationRegionView*> (*prev);
347 assert (arv);
349 return arv->line ();