don't cache width & height for CairoWidget; provide option for all CairoWidgets to...
[ardour.git] / gtk2_ardour / time_info_box.cc
1 /*
2     Copyright (C) 2011 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 <algorithm>
21 #include "pbd/compose.h"
22
23 #include "gtkmm2ext/cairocell.h"
24 #include "gtkmm2ext/gui_thread.h"
25 #include "gtkmm2ext/utils.h"
26 #include "gtkmm2ext/stateful_button.h"
27 #include "gtkmm2ext/actions.h"
28
29 #include "ardour/location.h"
30 #include "ardour/session.h"
31
32 #include "time_info_box.h"
33 #include "audio_clock.h"
34 #include "editor.h"
35
36 #include "i18n.h"
37
38 using namespace Gtk;
39 using namespace ARDOUR;
40 using std::min;
41 using std::max;
42
43 TimeInfoBox::TimeInfoBox ()
44         : left (2, 4)
45         , right (2, 4)
46         , syncing_selection (false)
47         , syncing_punch (false)
48 {
49         selection_start = new AudioClock ("selection-start", false, "selection", false, false, false, false);
50         selection_end = new AudioClock ("selection-end", false, "selection", false, false, false, false);
51         selection_length = new AudioClock ("selection-length", false, "selection", false, false, true, false);
52
53         punch_start = new AudioClock ("punch-start", false, "punch", false, false, false, false);
54         punch_end = new AudioClock ("punch-end", false, "punch", false, false, false, false);
55
56         selection_start->set_draw_background (false);
57         selection_end->set_draw_background (false);
58         selection_length->set_draw_background (false);
59         punch_start->set_draw_background (false);
60         punch_end->set_draw_background (false);
61
62         selection_title.set_text (_("Selection"));
63         punch_title.set_text (_("Punch"));
64
65         set_homogeneous (false);
66         set_spacing (6);
67         set_border_width (2);
68
69         pack_start (left, true, true);
70         pack_start (right, true, true);
71
72         left.set_homogeneous (false);
73         left.set_spacings (0);
74         left.set_border_width (2);
75         left.set_col_spacings (2);
76
77         right.set_homogeneous (false);
78         right.set_spacings (0);
79         right.set_border_width (2);
80         right.set_col_spacings (2);
81
82         Gtk::Label* l;
83
84         selection_title.set_name ("TimeInfoSelectionTitle");
85         left.attach (selection_title, 0, 2, 0, 1);
86         l = manage (new Label);
87         l->set_text (_("Start"));
88         l->set_alignment (1.0, 0.5);
89         l->set_name (X_("TimeInfoSelectionLabel"));
90         left.attach (*l, 0, 1, 1, 2, FILL);
91         left.attach (*selection_start, 1, 2, 1, 2);
92
93         l = manage (new Label);
94         l->set_text (_("End"));
95         l->set_alignment (1.0, 0.5);
96         l->set_name (X_("TimeInfoSelectionLabel"));
97         left.attach (*l, 0, 1, 2, 3, FILL);
98         left.attach (*selection_end, 1, 2, 2, 3);
99
100         l = manage (new Label);
101         l->set_text (_("Length"));
102         l->set_alignment (1.0, 0.5);
103         l->set_name (X_("TimeInfoSelectionLabel"));
104         left.attach (*l, 0, 1, 3, 4, FILL);
105         left.attach (*selection_length, 1, 2, 3, 4);
106
107         punch_in_button.set_name ("punch button");
108         punch_out_button.set_name ("punch button");
109         punch_in_button.set_text (_("In"));
110         punch_out_button.set_text (_("Out"));
111
112         Glib::RefPtr<Action> act = ActionManager::get_action ("Transport", "TogglePunchIn");
113         punch_in_button.set_related_action (act);
114         act = ActionManager::get_action ("Transport", "TogglePunchOut");
115         punch_out_button.set_related_action (act);
116
117         Gtkmm2ext::UI::instance()->set_tip (punch_in_button, _("Start recording at auto-punch start"));
118         Gtkmm2ext::UI::instance()->set_tip (punch_out_button, _("Stop recording at auto-punch end"));
119
120         punch_title.set_name ("TimeInfoSelectionTitle");
121         right.attach (punch_title, 2, 4, 0, 1);
122         right.attach (punch_in_button, 2, 3, 1, 2, FILL, SHRINK);
123         right.attach (*punch_start, 3, 4, 1, 2);
124         right.attach (punch_out_button, 2, 3, 2, 3, FILL, SHRINK);
125         right.attach (*punch_end, 3, 4, 2, 3);
126
127         show_all ();
128
129         selection_start->mode_changed.connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::sync_selection_mode), selection_start));
130         selection_end->mode_changed.connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::sync_selection_mode), selection_end));
131         selection_length->mode_changed.connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::sync_selection_mode), selection_length));
132
133         punch_start->mode_changed.connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::sync_punch_mode), punch_start));
134         punch_end->mode_changed.connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::sync_punch_mode), punch_end));
135
136         selection_start->signal_button_release_event().connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::clock_button_release_event), selection_start), true);
137         selection_end->signal_button_release_event().connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::clock_button_release_event), selection_end), true);
138
139         punch_start->signal_button_release_event().connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::clock_button_release_event), punch_start), true);
140         punch_end->signal_button_release_event().connect (sigc::bind (sigc::mem_fun (*this, &TimeInfoBox::clock_button_release_event), punch_end), true);
141
142         Editor::instance().get_selection().TimeChanged.connect (sigc::mem_fun (*this, &TimeInfoBox::selection_changed));
143         Editor::instance().get_selection().RegionsChanged.connect (sigc::mem_fun (*this, &TimeInfoBox::selection_changed));
144
145         Editor::instance().MouseModeChanged.connect (editor_connections, invalidator(*this), ui_bind (&TimeInfoBox::track_mouse_mode, this), gui_context());
146
147         Gdk::Color bg;
148
149         bg.set_red (lrint (0.149 * 65535));
150         bg.set_green (lrint (0.149 * 65535));
151         bg.set_blue (lrint (0.149 * 65535));
152
153         CairoWidget::provide_background_for_cairo_widget (*this, bg);
154 }
155
156 TimeInfoBox::~TimeInfoBox ()
157 {
158         delete selection_length;
159         delete selection_end;
160         delete selection_start;
161         
162         delete punch_start;
163         delete punch_end;
164 }
165
166 void
167 TimeInfoBox::track_mouse_mode ()
168 {
169         selection_changed ();
170 }
171
172 bool
173 TimeInfoBox::clock_button_release_event (GdkEventButton* ev, AudioClock* src)
174 {
175         if (!_session) {
176                 return false;
177         }
178
179         if (ev->button == 1) {
180                 _session->request_locate (src->current_time ());
181                 return true;
182         }
183
184         return false;
185 }
186
187 void
188 TimeInfoBox::sync_selection_mode (AudioClock* src)
189 {
190         if (!syncing_selection) {
191                 syncing_selection = true;
192                 selection_start->set_mode (src->mode());
193                 selection_end->set_mode (src->mode());
194                 selection_length->set_mode (src->mode());
195                 syncing_selection = false;
196         }
197 }
198
199 void
200 TimeInfoBox::sync_punch_mode (AudioClock* src)
201 {
202         if (!syncing_punch) {
203                 syncing_punch = true;
204                 punch_start->set_mode (src->mode());
205                 punch_end->set_mode (src->mode());
206                 syncing_punch = false;
207         }
208 }
209         
210
211 void
212 TimeInfoBox::set_session (Session* s)
213 {
214         SessionHandlePtr::set_session (s);
215
216         selection_start->set_session (s);
217         selection_end->set_session (s);
218         selection_length->set_session (s);
219
220         punch_start->set_session (s);
221         punch_end->set_session (s);
222
223         if (s) {
224                 Location* punch = s->locations()->auto_punch_location ();
225                 
226                 if (punch) {
227                         watch_punch (punch);
228                 }
229                 
230                 punch_changed (punch);
231
232                 _session->auto_punch_location_changed.connect (_session_connections, MISSING_INVALIDATOR, 
233                                                                boost::bind (&TimeInfoBox::punch_location_changed, this, _1), gui_context());
234         }
235 }
236
237 void
238 TimeInfoBox::selection_changed ()
239 {
240         framepos_t s, e;
241         Selection& selection (Editor::instance().get_selection());
242
243         switch (Editor::instance().current_mouse_mode()) {
244
245         case Editing::MouseObject:
246                 if (Editor::instance().internal_editing()) {
247                         /* displaying MIDI note selection is tricky */
248                         
249                         selection_start->set_off (true);
250                         selection_end->set_off (true);
251                         selection_length->set_off (true);
252
253                 } else {
254                         if (selection.regions.empty()) {
255                                 if (selection.points.empty()) {
256                                         selection_start->set_off (true);
257                                         selection_end->set_off (true);
258                                         selection_length->set_off (true);
259                                 } else {
260                                         s = max_framepos;
261                                         e = 0;
262                                         for (PointSelection::iterator i = selection.points.begin(); i != selection.points.end(); ++i) {
263                                                 s = min (s, (framepos_t) i->start);
264                                                 e = max (e, (framepos_t) i->end);
265                                         }
266                                         selection_start->set_off (false);
267                                         selection_end->set_off (false);
268                                         selection_length->set_off (false);
269                                         selection_start->set (s);
270                                         selection_end->set (e);
271                                         selection_length->set (e - s + 1);
272                                 }
273                         } else {
274                                 s = selection.regions.start();
275                                 e = selection.regions.end_frame();
276                                 selection_start->set_off (false);
277                                 selection_end->set_off (false);
278                                 selection_length->set_off (false);
279                                 selection_start->set (s);
280                                 selection_end->set (e);
281                                 selection_length->set (e - s + 1);
282                         }
283                 }
284                 break;
285
286         case Editing::MouseRange:
287                 if (selection.time.empty()) {
288                         selection_start->set_off (true);
289                         selection_end->set_off (true);
290                         selection_length->set_off (true);
291                 } else {
292                         selection_start->set_off (false);
293                         selection_end->set_off (false);
294                         selection_length->set_off (false);
295                         selection_start->set (selection.time.start());
296                         selection_end->set (selection.time.end_frame());
297                         selection_length->set (selection.time.length());
298                 }
299                 break;
300
301         default:
302                 selection_start->set_off (true);
303                 selection_end->set_off (true);
304                 selection_length->set_off (true);       
305                 break;
306         }
307 }
308
309 void
310 TimeInfoBox::punch_location_changed (Location* loc)
311 {
312         if (loc) {
313                 watch_punch (loc);
314         } 
315 }
316
317 void
318 TimeInfoBox::watch_punch (Location* punch)
319 {
320         punch_connections.drop_connections ();
321
322         punch->start_changed.connect (punch_connections, MISSING_INVALIDATOR, boost::bind (&TimeInfoBox::punch_changed, this, _1), gui_context());
323         punch->end_changed.connect (punch_connections, MISSING_INVALIDATOR, boost::bind (&TimeInfoBox::punch_changed, this, _1), gui_context());
324
325         punch_changed (punch);
326 }
327
328 void
329 TimeInfoBox::punch_changed (Location* loc)
330 {
331         if (!loc) {
332                 punch_start->set_off (true);
333                 punch_end->set_off (true);
334                 return;
335         }
336
337         punch_start->set_off (false);
338         punch_end->set_off (false);
339
340         punch_start->set (loc->start());
341         punch_end->set (loc->end());
342 }       
343
344 bool
345 TimeInfoBox::on_expose_event (GdkEventExpose* ev)
346 {
347         {
348                 int x, y;
349                 Gtk::Widget* window_parent;
350                 Glib::RefPtr<Gdk::Window> win = Gtkmm2ext::window_to_draw_on (*this, &window_parent);
351
352                 if (win) {
353                 
354                         Cairo::RefPtr<Cairo::Context> context = win->create_cairo_context();
355
356 #if 0                   
357                         translate_coordinates (*window_parent, ev->area.x, ev->area.y, x, y);
358                         context->rectangle (x, y, ev->area.width, ev->area.height);
359                         context->clip ();
360 #endif
361                         translate_coordinates (*window_parent, 0, 0, x, y);
362                         context->set_source_rgba (0.149, 0.149, 0.149, 1.0);
363                         Gtkmm2ext::rounded_rectangle (context, x, y, get_allocation().get_width(), get_allocation().get_height(), 9);
364                         context->fill ();
365                 }
366         }
367
368         HBox::on_expose_event (ev);
369
370         return false;
371 }