Scale MIDI track vertical range to match widgest range of notes in child regions.
[ardour.git] / gtk2_ardour / midi_time_axis.cc
1 /*
2     Copyright (C) 2000 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 #include <cstdlib>
20 #include <cmath>
21
22 #include <algorithm>
23 #include <string>
24 #include <vector>
25
26 #include <sigc++/bind.h>
27
28 #include <pbd/error.h>
29 #include <pbd/stl_delete.h>
30 #include <pbd/whitespace.h>
31
32 #include <gtkmm2ext/gtk_ui.h>
33 #include <gtkmm2ext/selector.h>
34 #include <gtkmm2ext/stop_signal.h>
35 #include <gtkmm2ext/bindable_button.h>
36 #include <gtkmm2ext/utils.h>
37
38 #include <ardour/midi_playlist.h>
39 #include <ardour/midi_diskstream.h>
40 #include <ardour/processor.h>
41 #include <ardour/ladspa_plugin.h>
42 #include <ardour/location.h>
43 #include <ardour/playlist.h>
44 #include <ardour/session.h>
45 #include <ardour/session_playlist.h>
46 #include <ardour/utils.h>
47
48 #include "ardour_ui.h"
49 #include "midi_time_axis.h"
50 #include "automation_time_axis.h"
51 #include "automation_line.h"
52 #include "add_midi_cc_track_dialog.h"
53 #include "canvas_impl.h"
54 #include "crossfade_view.h"
55 #include "enums.h"
56 #include "gui_thread.h"
57 #include "keyboard.h"
58 #include "playlist_selector.h"
59 #include "plugin_selector.h"
60 #include "plugin_ui.h"
61 #include "point_selection.h"
62 #include "prompter.h"
63 #include "public_editor.h"
64 #include "region_view.h"
65 #include "rgb_macros.h"
66 #include "selection.h"
67 #include "simplerect.h"
68 #include "midi_streamview.h"
69 #include "utils.h"
70
71 #include <ardour/midi_track.h>
72
73 #include "i18n.h"
74
75 using namespace ARDOUR;
76 using namespace PBD;
77 using namespace Gtk;
78 using namespace Editing;
79
80
81 MidiTimeAxisView::MidiTimeAxisView (PublicEditor& ed, Session& sess, boost::shared_ptr<Route> rt, Canvas& canvas)
82         : AxisView(sess), // FIXME: won't compile without this, why??
83         RouteTimeAxisView(ed, sess, rt, canvas)
84 {
85         subplugin_menu.set_name ("ArdourContextMenu");
86
87         _view = new MidiStreamView (*this);
88
89         ignore_toggle = false;
90
91         mute_button->set_active (false);
92         solo_button->set_active (false);
93         
94         if (is_midi_track())
95                 controls_ebox.set_name ("MidiTimeAxisViewControlsBaseUnselected");
96         else // bus
97                 controls_ebox.set_name ("MidiBusControlsBaseUnselected");
98
99         /* map current state of the route */
100
101         processors_changed ();
102
103         ensure_xml_node ();
104
105         set_state (*xml_node);
106         
107         _route->processors_changed.connect (mem_fun(*this, &MidiTimeAxisView::processors_changed));
108
109         if (is_track()) {
110
111                 controls_ebox.set_name ("MidiTrackControlsBaseUnselected");
112                 controls_base_selected_name = "MidiTrackControlsBaseSelected";
113                 controls_base_unselected_name = "MidiTrackControlsBaseUnselected";
114
115                 /* ask for notifications of any new RegionViews */
116                 _view->RegionViewAdded.connect (mem_fun(*this, &MidiTimeAxisView::region_view_added));
117                 _view->attach ();
118
119         } /*else { // no MIDI busses yet
120
121                 controls_ebox.set_name ("MidiBusControlsBaseUnselected");
122                 controls_base_selected_name = "MidiBusControlsBaseSelected";
123                 controls_base_unselected_name = "MidiBusControlsBaseUnselected";
124         }*/
125 }
126
127 MidiTimeAxisView::~MidiTimeAxisView ()
128 {
129 }
130
131 MidiStreamView*
132 MidiTimeAxisView::midi_view()
133 {
134         return dynamic_cast<MidiStreamView*>(_view);
135 }
136
137 guint32
138 MidiTimeAxisView::show_at (double y, int& nth, Gtk::VBox *parent)
139 {
140         ensure_xml_node ();
141         xml_node->add_property ("shown_editor", "yes");
142                 
143         return TimeAxisView::show_at (y, nth, parent);
144 }
145
146 void
147 MidiTimeAxisView::hide ()
148 {
149         ensure_xml_node ();
150         xml_node->add_property ("shown_editor", "no");
151
152         TimeAxisView::hide ();
153 }
154
155 void
156 MidiTimeAxisView::build_automation_action_menu ()
157 {
158         using namespace Menu_Helpers;
159
160         RouteTimeAxisView::build_automation_action_menu ();
161
162         MenuList& automation_items = automation_action_menu->items();
163         
164         automation_items.push_back (SeparatorElem());
165
166         automation_items.push_back (MenuElem (_("Controller..."), 
167                                                    mem_fun(*this, &MidiTimeAxisView::add_controller_track)));
168 }
169
170 /** Prompt for a controller with a dialog and add an automation track for it
171  */
172 void
173 MidiTimeAxisView::add_controller_track()
174 {
175         int response;
176         Parameter param;
177
178         {
179                 AddMidiCCTrackDialog dialog;
180                 dialog.set_transient_for(editor);
181                 response = dialog.run();
182                 
183                 if (response == Gtk::RESPONSE_ACCEPT)
184                         param = dialog.parameter();
185         }
186
187         if (response == Gtk::RESPONSE_ACCEPT)
188                 create_automation_child(param, true);
189 }
190
191 void
192 MidiTimeAxisView::create_automation_child (Parameter param, bool show)
193 {
194         if (param.type() == MidiCCAutomation) {
195         
196                 /* FIXME: this all probably leaks */
197
198                 boost::shared_ptr<AutomationControl> c = _route->control(param);
199
200                 if (!c) {
201                         boost::shared_ptr<AutomationList> al(new ARDOUR::AutomationList(param, 0, 127, 64));
202                         c = boost::shared_ptr<AutomationControl>(new MidiTrack::MidiControl(midi_track(), al));
203                         _route->add_control(c);
204                 }
205
206                 boost::shared_ptr<AutomationTimeAxisView> track(new AutomationTimeAxisView (_session,
207                                 _route, _route, c,
208                                 editor,
209                                 *this,
210                                 parent_canvas,
211                                 _route->describe_parameter(param)));
212                 
213                 add_automation_child(param, track, show);
214
215         } else {
216                 error << "MidiTimeAxisView: unknown automation child " << param.to_string() << endmsg;
217         }
218 }
219
220 void
221 MidiTimeAxisView::route_active_changed ()
222 {
223         RouteUI::route_active_changed ();
224
225         if (is_track()) {
226                 if (_route->active()) {
227                         controls_ebox.set_name ("MidiTrackControlsBaseUnselected");
228                         controls_base_selected_name = "MidiTrackControlsBaseSelected";
229                         controls_base_unselected_name = "MidiTrackControlsBaseUnselected";
230                 } else {
231                         controls_ebox.set_name ("MidiTrackControlsBaseInactiveUnselected");
232                         controls_base_selected_name = "MidiTrackControlsBaseInactiveSelected";
233                         controls_base_unselected_name = "MidiTrackControlsBaseInactiveUnselected";
234                 }
235         } else {
236
237                 throw; // wha?
238                 
239                 if (_route->active()) {
240                         controls_ebox.set_name ("BusControlsBaseUnselected");
241                         controls_base_selected_name = "BusControlsBaseSelected";
242                         controls_base_unselected_name = "BusControlsBaseUnselected";
243                 } else {
244                         controls_ebox.set_name ("BusControlsBaseInactiveUnselected");
245                         controls_base_selected_name = "BusControlsBaseInactiveSelected";
246                         controls_base_unselected_name = "BusControlsBaseInactiveUnselected";
247                 }
248         }
249 }
250