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 #ifndef __gtk_ardour_midi_region_view_h__
20 #define __gtk_ardour_midi_region_view_h__
24 #include <libgnomecanvasmm.h>
25 #include <libgnomecanvasmm/polygon.h>
26 #include <ardour/midi_track.h>
27 #include <ardour/midi_region.h>
28 #include <ardour/midi_model.h>
29 #include <ardour/diskstream.h>
30 #include <ardour/types.h>
32 #include "region_view.h"
33 #include "midi_time_axis.h"
34 #include "time_axis_view_item.h"
35 #include "automation_line.h"
38 #include "canvas-note.h"
39 #include "canvas-note-event.h"
40 #include "canvas-program-change.h"
47 class MidiTimeAxisView;
49 class AutomationTimeAxisView;
50 class AutomationRegionView;
52 class MidiRegionView : public RegionView
55 MidiRegionView (ArdourCanvas::Group *,
57 boost::shared_ptr<ARDOUR::MidiRegion>,
58 double initial_samples_per_unit,
59 Gdk::Color& basic_color);
61 MidiRegionView (const MidiRegionView& other);
62 MidiRegionView (const MidiRegionView& other, boost::shared_ptr<ARDOUR::MidiRegion>);
66 virtual void init (Gdk::Color& basic_color, bool wfd);
68 inline const boost::shared_ptr<ARDOUR::MidiRegion> midi_region() const
69 { return boost::dynamic_pointer_cast<ARDOUR::MidiRegion>(_region); }
71 inline MidiTimeAxisView* midi_view() const
72 { return dynamic_cast<MidiTimeAxisView*>(&trackview); }
74 inline MidiStreamView* midi_stream_view() const
75 { return midi_view()->midi_view(); }
77 void set_height (double);
78 void apply_note_range(uint8_t lowest, uint8_t highest, bool force=false);
80 void set_frame_color();
82 void redisplay_model();
84 GhostRegion* add_ghost (TimeAxisView&);
86 void add_note(const boost::shared_ptr<Evoral::Note> note);
87 void resolve_note(uint8_t note_num, double end_time);
89 void add_pgm_change(boost::shared_ptr<Evoral::Event> event);
93 void extend_active_notes();
95 void create_note_at(double x, double y, double duration);
97 void display_model(boost::shared_ptr<ARDOUR::MidiModel> model);
99 void start_delta_command(string name = "midi edit");
100 void command_add_note(const boost::shared_ptr<Evoral::Note> note, bool selected);
101 void command_remove_note(ArdourCanvas::CanvasNoteEvent* ev);
103 void apply_command();
104 void abort_command();
106 void note_entered(ArdourCanvas::CanvasNoteEvent* ev);
107 void unique_select(ArdourCanvas::CanvasNoteEvent* ev);
108 void note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add);
109 void note_deselected(ArdourCanvas::CanvasNoteEvent* ev, bool add);
110 void delete_selection();
111 size_t selection_size() { return _selection.size(); }
113 void move_selection(double dx, double dy);
114 void note_dropped(ArdourCanvas::CanvasNoteEvent* ev, double dt, uint8_t dnote);
117 * This function is needed to subtract the region start in pixels
118 * from world coordinates submitted by the mouse
120 double get_position_pixels(void);
123 * This function is called by CanvasMidiNote when resizing starts,
124 * i.e. when the user presses mouse-2 on the note
125 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
127 void begin_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end);
130 * This function is called while the user moves the mouse when resizing notes
131 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
132 * @param x the difference in mouse motion, ie the motion difference if relative=true
133 * or the absolute mouse position (track-relative) if relative is false
134 * @param relative true if relative resizing is taking place, false if absolute resizing
136 void update_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end, double x, bool relative);
139 * This function is called while the user releases the mouse button when resizing notes
140 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
141 * @param event_x the absolute mouse position (track-relative)
142 * @param relative true if relative resizing is taking place, false if absolute resizing
144 void commit_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end, double event_x, bool relative);
147 * This function is called while the user adjusts the velocity on a selection of notes
148 * @param velocity the relative or absolute velocity, depending on the value of relative
149 * @param relative true if the given velocity represents a delta to be applied to all notes, false
150 * if the absolute value of the note shoud be set
152 void change_velocity(uint8_t velocity, bool relative=false);
155 * This function is called when the user adjusts the midi channel of a selection of notes
156 * @param channel - the channel number of the new channel, zero-based
158 void change_channel(uint8_t channel);
160 enum MouseState { None, Pressed, SelectTouchDragging, SelectRectDragging, AddDragging, EraseTouchDragging };
161 MouseState mouse_state() const { return _mouse_state; }
163 struct NoteResizeData {
164 ArdourCanvas::CanvasNote *canvas_note;
165 ArdourCanvas::SimpleRect *resize_rect;
170 * This function provides the snap function for region position relative coordinates
171 * for pixel units (double) instead of nframes64_t
172 * @param x a pixel coordinate relative to region start
173 * @return the snapped pixel coordinate relative to region start
175 double snap_to_pixel(double x);
178 * This function provides the snap function for region position relative coordinates
179 * for pixel units (double) instead of nframes64_t
180 * @param x a pixel coordinate relative to region start
181 * @return the snapped nframes64_t coordinate relative to region start
183 nframes64_t snap_to_frame(double x);
186 * This function provides the snap function for region position relative coordinates
187 * @param x a pixel coordinate relative to region start
188 * @return the snapped nframes64_t coordinate relative to region start
190 nframes64_t snap_to_frame(nframes64_t x);
195 * this constructor allows derived types
196 * to specify their visibility requirements
197 * to the TimeAxisViewItem parent class
199 MidiRegionView (ArdourCanvas::Group *,
201 boost::shared_ptr<ARDOUR::MidiRegion>,
202 double samples_per_unit,
203 Gdk::Color& basic_color,
204 TimeAxisViewItem::Visibility);
206 void region_resized (ARDOUR::Change);
208 void set_flags (XMLNode *);
211 void reset_width_dependent_items (double pixel_width);
216 void switch_source(boost::shared_ptr<ARDOUR::Source> src);
218 bool canvas_event(GdkEvent* ev);
219 bool note_canvas_event(GdkEvent* ev);
221 void midi_channel_mode_changed(ARDOUR::ChannelMode mode, uint16_t mask);
223 void clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev);
224 void clear_selection() { clear_selection_except(NULL); }
225 void update_drag_selection(double last_x, double x, double last_y, double y);
227 int8_t _force_channel;
228 uint16_t _last_channel_selection;
229 double _default_note_length;
230 uint8_t _current_range_min;
231 uint8_t _current_range_max;
233 typedef std::vector<ArdourCanvas::CanvasNoteEvent*> Events;
234 typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasProgramChange> > PgmChanges;
236 boost::shared_ptr<ARDOUR::MidiModel> _model;
238 PgmChanges _pgm_changes;
239 ArdourCanvas::CanvasNote** _active_notes;
240 ArdourCanvas::Group* _note_group;
241 ARDOUR::MidiModel::DeltaCommand* _delta_command;
243 MouseState _mouse_state;
246 typedef std::set<ArdourCanvas::CanvasNoteEvent*> Selection;
247 /// Currently selected CanvasNoteEvents
248 Selection _selection;
250 /** New notes (created in the current command) which should be selected
251 * when they appear after the command is applied. */
252 std::set< boost::shared_ptr<Evoral::Note> > _marked_for_selection;
254 std::vector<NoteResizeData *> _resize_data;
257 #endif /* __gtk_ardour_midi_region_view_h__ */