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__
25 #include <libgnomecanvasmm.h>
26 #include <libgnomecanvasmm/polygon.h>
27 #include "ardour/midi_track.h"
28 #include "ardour/midi_region.h"
29 #include "ardour/midi_model.h"
30 #include "ardour/diskstream.h"
31 #include "ardour/types.h"
34 #include "region_view.h"
35 #include "midi_time_axis.h"
36 #include "time_axis_view_item.h"
37 #include "automation_line.h"
40 #include "canvas-note.h"
41 #include "canvas-note-event.h"
42 #include "canvas-program-change.h"
43 #include "canvas-sysex.h"
52 struct PatchPrimaryKey;
56 class MidiTimeAxisView;
58 class AutomationTimeAxisView;
59 class AutomationRegionView;
61 class MidiRegionView : public RegionView
64 typedef Evoral::Note<ARDOUR::MidiModel::TimeType> NoteType;
66 MidiRegionView (ArdourCanvas::Group *,
68 boost::shared_ptr<ARDOUR::MidiRegion>,
69 double initial_samples_per_unit,
70 Gdk::Color const & basic_color);
72 MidiRegionView (const MidiRegionView& other);
73 MidiRegionView (const MidiRegionView& other, boost::shared_ptr<ARDOUR::MidiRegion>);
77 virtual void init (Gdk::Color const & basic_color, bool wfd);
79 inline const boost::shared_ptr<ARDOUR::MidiRegion> midi_region() const
80 { return boost::dynamic_pointer_cast<ARDOUR::MidiRegion>(_region); }
82 inline MidiTimeAxisView* midi_view() const
83 { return dynamic_cast<MidiTimeAxisView*>(&trackview); }
85 inline MidiStreamView* midi_stream_view() const
86 { return midi_view()->midi_view(); }
88 void set_height (double);
89 void apply_note_range(uint8_t lowest, uint8_t highest, bool force=false);
91 inline ARDOUR::ColorMode color_mode() const { return midi_view()->color_mode(); }
93 void set_frame_color();
95 void redisplay_model();
97 GhostRegion* add_ghost (TimeAxisView&);
99 void add_note(const boost::shared_ptr<NoteType> note);
100 void resolve_note(uint8_t note_num, double end_time);
102 void cut_copy_clear (Editing::CutCopyOp);
105 PCEvent(double a_time, uint8_t a_value, uint8_t a_channel)
106 : time(a_time), value(a_value), channel(a_channel) {}
113 /** Add a new program change flag to the canvas.
114 * @param program the MidiRegionView::PCEvent to add
115 * @param the text to display in the flag
117 void add_pgm_change(PCEvent& program, const std::string& displaytext);
119 /** Look up the given time and channel in the 'automation' and set keys accordingly.
120 * @param time the time of the program change event
121 * @param channel the MIDI channel of the event
122 * @key a reference to an instance of MIDI::Name::PatchPrimaryKey whose fields will
123 * will be set according to the result of the lookup
125 void get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key);
127 /** Change the 'automation' data of old_program to new values which correspond to new_patch.
128 * @param old_program the program change event which is to be altered
129 * @param new_patch the new lsb, msb and program number which are to be set
131 void alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch);
133 /** Alter a given program to the new given one.
134 * (Called on context menu select on CanvasProgramChange)
136 void program_selected(
137 ArdourCanvas::CanvasProgramChange& program,
138 const MIDI::Name::PatchPrimaryKey& new_patch);
140 /** Alter a given program to be its predecessor in the MIDNAM file.
142 void previous_program(ArdourCanvas::CanvasProgramChange& program);
144 /** Alters a given program to be its successor in the MIDNAM file.
146 void next_program(ArdourCanvas::CanvasProgramChange& program);
148 /** Displays all program change events in the region as flags on the canvas.
150 void display_program_changes();
152 /** Displays all system exclusive events in the region as flags on the canvas.
154 void display_sysexes();
158 void extend_active_notes();
160 void create_note_at(double x, double y, double length);
162 void display_model(boost::shared_ptr<ARDOUR::MidiModel> model);
164 void start_delta_command(std::string name = "midi edit");
165 void command_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity=false);
166 void command_remove_note(ArdourCanvas::CanvasNoteEvent* ev);
168 void apply_command();
169 void abort_command();
171 void note_entered(ArdourCanvas::CanvasNoteEvent* ev);
172 void unique_select(ArdourCanvas::CanvasNoteEvent* ev);
173 void note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add);
174 void note_deselected(ArdourCanvas::CanvasNoteEvent* ev, bool add);
175 void delete_selection();
176 size_t selection_size() { return _selection.size(); }
178 void move_selection(double dx, double dy);
179 void note_dropped(ArdourCanvas::CanvasNoteEvent* ev, double d_pixels, uint8_t d_note);
181 /** Return true iff the note is within the currently visible range */
182 bool note_in_visible_range(const boost::shared_ptr<NoteType> note) const;
184 /** Get the region position in pixels relative to session. */
185 double get_position_pixels();
187 /** Begin resizing of some notes.
188 * Called by CanvasMidiNote when resizing starts.
189 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
191 void begin_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end);
193 /** Update resizing notes while user drags.
194 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
195 * @param x the difference in mouse motion, ie the motion difference if relative=true
196 * or the absolute mouse position (track-relative) if relative is false
197 * @param relative true if relative resizing is taking place, false if absolute resizing
199 void update_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end, double x, bool relative);
201 /** Finish resizing notes when the user releases the mouse button.
202 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
203 * @param event_x the absolute mouse position (track-relative)
204 * @param relative true if relative resizing is taking place, false if absolute resizing
206 void commit_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end, double event_x, bool relative);
208 /** Adjust the velocity on a note, and the selection if applicable.
209 * @param velocity the relative or absolute velocity
210 * @param relative whether velocity is relative or absolute
212 void change_velocity(ArdourCanvas::CanvasNoteEvent* ev, int8_t velocity, bool relative=false);
214 /** Change the channel of the selection.
215 * @param channel - the channel number of the new channel, zero-based
217 void change_channel(uint8_t channel);
227 MouseState mouse_state() const { return _mouse_state; }
229 struct NoteResizeData {
230 ArdourCanvas::CanvasNote *canvas_note;
231 ArdourCanvas::SimpleRect *resize_rect;
235 /** Snap a region relative pixel coordinate to pixel units.
236 * @param x a pixel coordinate relative to region start
237 * @return the snapped pixel coordinate relative to region start
239 double snap_to_pixel(double x);
241 /** Snap a region relative pixel coordinate to frame units.
242 * @param x a pixel coordinate relative to region start
243 * @return the snapped nframes64_t coordinate relative to region start
245 nframes64_t snap_pixel_to_frame(double x);
247 /** Snap a region relative frame coordinate to frame units.
248 * @param x a pixel coordinate relative to region start
249 * @return the snapped nframes64_t coordinate relative to region start
251 nframes64_t snap_frame_to_frame(nframes64_t x);
253 /** Convert a timestamp in beats to frames (both relative to region start) */
254 nframes64_t beats_to_frames(double beats) const;
256 /** Convert a timestamp in frames to beats (both relative to region start) */
257 double frames_to_beats(nframes64_t beats) const;
260 /** Allows derived types to specify their visibility requirements
261 * to the TimeAxisViewItem parent class.
263 MidiRegionView (ArdourCanvas::Group *,
265 boost::shared_ptr<ARDOUR::MidiRegion>,
266 double samples_per_unit,
267 Gdk::Color& basic_color,
268 TimeAxisViewItem::Visibility);
270 void region_resized (ARDOUR::Change);
272 void set_flags (XMLNode *);
275 void reset_width_dependent_items (double pixel_width);
278 /** Play the NoteOn event of the given note immediately
279 * and schedule the playback of the corresponding NoteOff event.
281 void play_midi_note(boost::shared_ptr<NoteType> note);
283 /** Play the NoteOff-Event of the given note immediately
284 * (scheduled by @ref play_midi_note()).
286 bool play_midi_note_off(boost::shared_ptr<NoteType> note);
289 void switch_source(boost::shared_ptr<ARDOUR::Source> src);
291 bool canvas_event(GdkEvent* ev);
292 bool note_canvas_event(GdkEvent* ev);
294 void midi_channel_mode_changed(ARDOUR::ChannelMode mode, uint16_t mask);
295 void midi_patch_settings_changed(std::string model, std::string custom_device_mode);
297 void change_note_velocity(ArdourCanvas::CanvasNoteEvent* ev, int8_t vel, bool relative=false);
299 void clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev);
300 void clear_selection() { clear_selection_except(NULL); }
301 void update_drag_selection(double last_x, double x, double last_y, double y);
303 void add_to_selection (ArdourCanvas::CanvasNoteEvent*);
304 void remove_from_selection (ArdourCanvas::CanvasNoteEvent*);
306 int8_t _force_channel;
307 uint16_t _last_channel_selection;
308 double _default_note_length;
309 uint8_t _current_range_min;
310 uint8_t _current_range_max;
312 /// MIDNAM information of the current track: Model name of MIDNAM file
313 std::string _model_name;
315 /// MIDNAM information of the current track: CustomDeviceMode
316 std::string _custom_device_mode;
318 typedef std::vector<ArdourCanvas::CanvasNoteEvent*> Events;
319 typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasProgramChange> > PgmChanges;
320 typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasSysEx> > SysExes;
322 boost::shared_ptr<ARDOUR::MidiModel> _model;
324 PgmChanges _pgm_changes;
326 ArdourCanvas::CanvasNote** _active_notes;
327 ArdourCanvas::Group* _note_group;
328 ARDOUR::MidiModel::DeltaCommand* _delta_command;
330 MouseState _mouse_state;
333 typedef std::set<ArdourCanvas::CanvasNoteEvent*> Selection;
334 /// Currently selected CanvasNoteEvents
335 Selection _selection;
336 /// the cut buffer for this region view
337 typedef std::list<NoteType> CutBuffer;
338 CutBuffer _cut_buffer;
340 /** New notes (created in the current command) which should be selected
341 * when they appear after the command is applied. */
342 std::set< boost::shared_ptr<NoteType> > _marked_for_selection;
344 /** New notes (created in the current command) which should have visible velocity
345 * when they appear after the command is applied. */
346 std::set< boost::shared_ptr<NoteType> > _marked_for_velocity;
348 std::vector<NoteResizeData *> _resize_data;
351 #endif /* __gtk_ardour_midi_region_view_h__ */