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;
62 class MidiRegionView : public RegionView
65 typedef Evoral::Note<ARDOUR::MidiModel::TimeType> NoteType;
67 MidiRegionView (ArdourCanvas::Group *,
69 boost::shared_ptr<ARDOUR::MidiRegion>,
70 double initial_samples_per_unit,
71 Gdk::Color const & basic_color);
73 MidiRegionView (const MidiRegionView& other);
74 MidiRegionView (const MidiRegionView& other, boost::shared_ptr<ARDOUR::MidiRegion>);
78 virtual void init (Gdk::Color const & basic_color, bool wfd);
80 inline const boost::shared_ptr<ARDOUR::MidiRegion> midi_region() const
81 { return boost::dynamic_pointer_cast<ARDOUR::MidiRegion>(_region); }
83 inline MidiTimeAxisView* midi_view() const
84 { return dynamic_cast<MidiTimeAxisView*>(&trackview); }
86 inline MidiStreamView* midi_stream_view() const
87 { return midi_view()->midi_view(); }
89 void set_height (double);
90 void apply_note_range(uint8_t lowest, uint8_t highest, bool force=false);
92 inline ARDOUR::ColorMode color_mode() const { return midi_view()->color_mode(); }
94 void set_frame_color();
96 void redisplay_model();
98 GhostRegion* add_ghost (TimeAxisView&);
100 void add_note(const boost::shared_ptr<NoteType> note);
101 void resolve_note(uint8_t note_num, double end_time);
103 void cut_copy_clear (Editing::CutCopyOp);
104 void paste (nframes64_t pos, const MidiCutBuffer&);
107 PCEvent(double a_time, uint8_t a_value, uint8_t a_channel)
108 : time(a_time), value(a_value), channel(a_channel) {}
115 /** Add a new program change flag to the canvas.
116 * @param program the MidiRegionView::PCEvent to add
117 * @param the text to display in the flag
119 void add_pgm_change(PCEvent& program, const std::string& displaytext);
121 /** Look up the given time and channel in the 'automation' and set keys accordingly.
122 * @param time the time of the program change event
123 * @param channel the MIDI channel of the event
124 * @key a reference to an instance of MIDI::Name::PatchPrimaryKey whose fields will
125 * will be set according to the result of the lookup
127 void get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key);
129 /** Change the 'automation' data of old_program to new values which correspond to new_patch.
130 * @param old_program the program change event which is to be altered
131 * @param new_patch the new lsb, msb and program number which are to be set
133 void alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch);
135 /** Alter a given program to the new given one.
136 * (Called on context menu select on CanvasProgramChange)
138 void program_selected(
139 ArdourCanvas::CanvasProgramChange& program,
140 const MIDI::Name::PatchPrimaryKey& new_patch);
142 /** Alter a given program to be its predecessor in the MIDNAM file.
144 void previous_program(ArdourCanvas::CanvasProgramChange& program);
146 /** Alters a given program to be its successor in the MIDNAM file.
148 void next_program(ArdourCanvas::CanvasProgramChange& program);
150 /** Displays all program change events in the region as flags on the canvas.
152 void display_program_changes();
154 /** Displays all system exclusive events in the region as flags on the canvas.
156 void display_sysexes();
160 void extend_active_notes();
162 void create_note_at(double x, double y, double length);
164 void display_model(boost::shared_ptr<ARDOUR::MidiModel> model);
166 void start_delta_command(std::string name = "midi edit");
167 void command_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity=false);
168 void command_remove_note(ArdourCanvas::CanvasNoteEvent* ev);
170 void apply_command();
171 void abort_command();
173 void note_entered(ArdourCanvas::CanvasNoteEvent* ev);
174 void unique_select(ArdourCanvas::CanvasNoteEvent* ev);
175 void note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add);
176 void note_deselected(ArdourCanvas::CanvasNoteEvent* ev, bool add);
177 void delete_selection();
178 size_t selection_size() { return _selection.size(); }
180 void move_selection(double dx, double dy);
181 void note_dropped(ArdourCanvas::CanvasNoteEvent* ev, double d_pixels, uint8_t d_note);
183 /** Return true iff the note is within the currently visible range */
184 bool note_in_visible_range(const boost::shared_ptr<NoteType> note) const;
186 /** Get the region position in pixels relative to session. */
187 double get_position_pixels();
189 /** Begin resizing of some notes.
190 * Called by CanvasMidiNote when resizing starts.
191 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
193 void begin_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end);
195 /** Update resizing notes while user drags.
196 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
197 * @param x the difference in mouse motion, ie the motion difference if relative=true
198 * or the absolute mouse position (track-relative) if relative is false
199 * @param relative true if relative resizing is taking place, false if absolute resizing
201 void update_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end, double x, bool relative);
203 /** Finish resizing notes when the user releases the mouse button.
204 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
205 * @param event_x the absolute mouse position (track-relative)
206 * @param relative true if relative resizing is taking place, false if absolute resizing
208 void commit_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end, double event_x, bool relative);
210 /** Adjust the velocity on a note, and the selection if applicable.
211 * @param velocity the relative or absolute velocity
212 * @param relative whether velocity is relative or absolute
214 void change_velocity(ArdourCanvas::CanvasNoteEvent* ev, int8_t velocity, bool relative=false);
216 /** Change the channel of the selection.
217 * @param channel - the channel number of the new channel, zero-based
219 void change_channel(uint8_t channel);
229 MouseState mouse_state() const { return _mouse_state; }
231 struct NoteResizeData {
232 ArdourCanvas::CanvasNote *canvas_note;
233 ArdourCanvas::SimpleRect *resize_rect;
237 /** Snap a region relative pixel coordinate to pixel units.
238 * @param x a pixel coordinate relative to region start
239 * @return the snapped pixel coordinate relative to region start
241 double snap_to_pixel(double x);
243 /** Snap a region relative pixel coordinate to frame units.
244 * @param x a pixel coordinate relative to region start
245 * @return the snapped nframes64_t coordinate relative to region start
247 nframes64_t snap_pixel_to_frame(double x);
249 /** Snap a region relative frame coordinate to frame units.
250 * @param x a pixel coordinate relative to region start
251 * @return the snapped nframes64_t coordinate relative to region start
253 nframes64_t snap_frame_to_frame(nframes64_t x);
255 /** Convert a timestamp in beats to frames (both relative to region start) */
256 nframes64_t beats_to_frames(double beats) const;
258 /** Convert a timestamp in frames to beats (both relative to region start) */
259 double frames_to_beats(nframes64_t beats) const;
261 /** Return the current selection as a MidiModel or null if there is no selection */
262 ARDOUR::MidiModel* selection_as_model () const;
265 /** Allows derived types to specify their visibility requirements
266 * to the TimeAxisViewItem parent class.
268 MidiRegionView (ArdourCanvas::Group *,
270 boost::shared_ptr<ARDOUR::MidiRegion>,
271 double samples_per_unit,
272 Gdk::Color& basic_color,
273 TimeAxisViewItem::Visibility);
275 void region_resized (ARDOUR::Change);
277 void set_flags (XMLNode *);
280 void reset_width_dependent_items (double pixel_width);
283 /** Play the NoteOn event of the given note immediately
284 * and schedule the playback of the corresponding NoteOff event.
286 void play_midi_note(boost::shared_ptr<NoteType> note);
288 /** Play the NoteOff-Event of the given note immediately
289 * (scheduled by @ref play_midi_note()).
291 bool play_midi_note_off(boost::shared_ptr<NoteType> note);
294 void switch_source(boost::shared_ptr<ARDOUR::Source> src);
296 bool canvas_event(GdkEvent* ev);
297 bool note_canvas_event(GdkEvent* ev);
299 void midi_channel_mode_changed(ARDOUR::ChannelMode mode, uint16_t mask);
300 void midi_patch_settings_changed(std::string model, std::string custom_device_mode);
302 void change_note_velocity(ArdourCanvas::CanvasNoteEvent* ev, int8_t vel, bool relative=false);
304 void clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev);
305 void clear_selection() { clear_selection_except(NULL); }
306 void update_drag_selection(double last_x, double x, double last_y, double y);
308 void add_to_selection (ArdourCanvas::CanvasNoteEvent*);
309 void remove_from_selection (ArdourCanvas::CanvasNoteEvent*);
311 int8_t _force_channel;
312 uint16_t _last_channel_selection;
313 double _default_note_length;
314 uint8_t _current_range_min;
315 uint8_t _current_range_max;
317 /// MIDNAM information of the current track: Model name of MIDNAM file
318 std::string _model_name;
320 /// MIDNAM information of the current track: CustomDeviceMode
321 std::string _custom_device_mode;
323 typedef std::vector<ArdourCanvas::CanvasNoteEvent*> Events;
324 typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasProgramChange> > PgmChanges;
325 typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasSysEx> > SysExes;
327 boost::shared_ptr<ARDOUR::MidiModel> _model;
329 PgmChanges _pgm_changes;
331 ArdourCanvas::CanvasNote** _active_notes;
332 ArdourCanvas::Group* _note_group;
333 ARDOUR::MidiModel::DeltaCommand* _delta_command;
335 MouseState _mouse_state;
338 typedef std::set<ArdourCanvas::CanvasNoteEvent*> Selection;
339 /// Currently selected CanvasNoteEvents
340 Selection _selection;
342 MidiCutBuffer* selection_as_cut_buffer () const;
344 /** New notes (created in the current command) which should be selected
345 * when they appear after the command is applied. */
346 std::set< boost::shared_ptr<NoteType> > _marked_for_selection;
348 /** New notes (created in the current command) which should have visible velocity
349 * when they appear after the command is applied. */
350 std::set< boost::shared_ptr<NoteType> > _marked_for_velocity;
352 std::vector<NoteResizeData *> _resize_data;
355 #endif /* __gtk_ardour_midi_region_view_h__ */