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>
33 #include "region_view.h"
34 #include "midi_time_axis.h"
35 #include "time_axis_view_item.h"
36 #include "automation_line.h"
39 #include "canvas-note.h"
40 #include "canvas-note-event.h"
41 #include "canvas-program-change.h"
50 struct PatchPrimaryKey;
54 class MidiTimeAxisView;
56 class AutomationTimeAxisView;
57 class AutomationRegionView;
59 class MidiRegionView : public RegionView
62 typedef Evoral::Note<ARDOUR::MidiModel::TimeType> NoteType;
64 MidiRegionView (ArdourCanvas::Group *,
66 boost::shared_ptr<ARDOUR::MidiRegion>,
67 double initial_samples_per_unit,
68 Gdk::Color& basic_color);
70 MidiRegionView (const MidiRegionView& other);
71 MidiRegionView (const MidiRegionView& other, boost::shared_ptr<ARDOUR::MidiRegion>);
75 virtual void init (Gdk::Color& basic_color, bool wfd);
77 inline const boost::shared_ptr<ARDOUR::MidiRegion> midi_region() const
78 { return boost::dynamic_pointer_cast<ARDOUR::MidiRegion>(_region); }
80 inline MidiTimeAxisView* midi_view() const
81 { return dynamic_cast<MidiTimeAxisView*>(&trackview); }
83 inline MidiStreamView* midi_stream_view() const
84 { return midi_view()->midi_view(); }
86 void set_height (double);
87 void apply_note_range(uint8_t lowest, uint8_t highest, bool force=false);
89 inline ARDOUR::ColorMode color_mode() const { return midi_view()->color_mode(); }
91 void set_frame_color();
93 void redisplay_model();
95 GhostRegion* add_ghost (TimeAxisView&);
97 void add_note(const boost::shared_ptr<NoteType> note);
98 void resolve_note(uint8_t note_num, double end_time);
101 PCEvent(double a_time, uint8_t a_value, uint8_t a_channel)
102 : time(a_time), value(a_value), channel(a_channel) {}
109 /** Add a new program change flag to the canvas.
110 * @param program the MidiRegionView::PCEvent to add
111 * @param the text to display in the flag
113 void add_pgm_change(PCEvent& program, const std::string& displaytext);
115 /** Look up the given time and channel in the 'automation' and set keys accordingly.
116 * @param time the time of the program change event
117 * @param channel the MIDI channel of the event
118 * @key a reference to an instance of MIDI::Name::PatchPrimaryKey whose fields will
119 * will be set according to the result of the lookup
121 void get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key);
123 /** Change the 'automation' data of old_program to new values which correspond to new_patch.
124 * @param old_program the program change event which is to be altered
125 * @param new_patch the new lsb, msb and program number which are to be set
127 void alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch);
129 /** Alter a given program to the new given one.
130 * (Called on context menu select on CanvasProgramChange)
132 void program_selected(
133 ArdourCanvas::CanvasProgramChange& program,
134 const MIDI::Name::PatchPrimaryKey& new_patch);
136 /** Alter a given program to be its predecessor in the MIDNAM file.
138 void previous_program(ArdourCanvas::CanvasProgramChange& program);
140 /** Alters a given program to be its successor in the MIDNAM file.
142 void next_program(ArdourCanvas::CanvasProgramChange& program);
144 /** Displays all program changed events in the region as flags on the canvas.
146 void display_program_change_flags();
150 void extend_active_notes();
152 void create_note_at(double x, double y, double length);
154 void display_model(boost::shared_ptr<ARDOUR::MidiModel> model);
156 void start_delta_command(std::string name = "midi edit");
157 void command_add_note(const boost::shared_ptr<NoteType> note, bool selected);
158 void command_remove_note(ArdourCanvas::CanvasNoteEvent* ev);
160 void apply_command();
161 void abort_command();
163 void note_entered(ArdourCanvas::CanvasNoteEvent* ev);
164 void unique_select(ArdourCanvas::CanvasNoteEvent* ev);
165 void note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add);
166 void note_deselected(ArdourCanvas::CanvasNoteEvent* ev, bool add);
167 void delete_selection();
168 size_t selection_size() { return _selection.size(); }
170 void move_selection(double dx, double dy);
171 void note_dropped(ArdourCanvas::CanvasNoteEvent* ev, double d_frames, uint8_t d_note);
173 /** Return true iff the note is within the currently visible range */
174 bool note_in_visible_range(const boost::shared_ptr<NoteType> note) const;
176 /** Get the region position in pixels relative to session. */
177 double get_position_pixels();
179 /** Begin resizing of some notes.
180 * Called by CanvasMidiNote when resizing starts.
181 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
183 void begin_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end);
185 /** Update resizing notes while user drags.
186 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
187 * @param x the difference in mouse motion, ie the motion difference if relative=true
188 * or the absolute mouse position (track-relative) if relative is false
189 * @param relative true if relative resizing is taking place, false if absolute resizing
191 void update_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end, double x, bool relative);
193 /** Finish resizing notes when the user releases the mouse button.
194 * @param note_end which end of the note, NOTE_ON or NOTE_OFF
195 * @param event_x the absolute mouse position (track-relative)
196 * @param relative true if relative resizing is taking place, false if absolute resizing
198 void commit_resizing(ArdourCanvas::CanvasNote::NoteEnd note_end, double event_x, bool relative);
200 /** Adjust the velocity on a note, and the selection if applicable.
201 * @param velocity the relative or absolute velocity
202 * @param relative whether velocity is relative or absolute
204 void change_velocity(ArdourCanvas::CanvasNoteEvent* ev, int8_t velocity, bool relative=false);
206 /** Change the channel of the selection.
207 * @param channel - the channel number of the new channel, zero-based
209 void change_channel(uint8_t channel);
220 MouseState mouse_state() const { return _mouse_state; }
222 struct NoteResizeData {
223 ArdourCanvas::CanvasNote *canvas_note;
224 ArdourCanvas::SimpleRect *resize_rect;
228 /** Snap a region relative pixel coordinate to pixel units.
229 * for pixel units (double) instead of nframes64_t
230 * @param x a pixel coordinate relative to region start
231 * @return the snapped pixel coordinate relative to region start
233 double snap_to_pixel(double x);
235 /** Snap a region relative pixel coordinate to frame units.
236 * @param x a pixel coordinate relative to region start
237 * @return the snapped nframes64_t coordinate relative to region start
239 nframes64_t snap_to_frame(double x);
241 /** Snap a region relative frame 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_to_frame(nframes64_t x);
247 /** Convert a timestamp in beats to frames (both relative to region start) */
248 nframes64_t beats_to_frames(double beats) const;
250 /** Convert a timestamp in frames to beats (both relative to region start) */
251 double frames_to_beats(nframes64_t beats) const;
254 /** Allows derived types to specify their visibility requirements
255 * to the TimeAxisViewItem parent class.
257 MidiRegionView (ArdourCanvas::Group *,
259 boost::shared_ptr<ARDOUR::MidiRegion>,
260 double samples_per_unit,
261 Gdk::Color& basic_color,
262 TimeAxisViewItem::Visibility);
264 void region_resized (ARDOUR::Change);
266 void set_flags (XMLNode *);
269 void reset_width_dependent_items (double pixel_width);
272 /** Play the NoteOn event of the given note immediately
273 * and schedule the playback of the corresponding NoteOff event.
275 void play_midi_note(boost::shared_ptr<NoteType> note);
277 /** Play the NoteOff-Event of the given note immediately
278 * (scheduled by @ref play_midi_note()).
280 bool play_midi_note_off(boost::shared_ptr<NoteType> note);
283 void switch_source(boost::shared_ptr<ARDOUR::Source> src);
285 bool canvas_event(GdkEvent* ev);
286 bool note_canvas_event(GdkEvent* ev);
288 void midi_channel_mode_changed(ARDOUR::ChannelMode mode, uint16_t mask);
289 void midi_patch_settings_changed(std::string model, std::string custom_device_mode);
291 void change_note_velocity(ArdourCanvas::CanvasNoteEvent* ev, int8_t vel, bool relative=false);
293 void clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev);
294 void clear_selection() { clear_selection_except(NULL); }
295 void update_drag_selection(double last_x, double x, double last_y, double y);
297 int8_t _force_channel;
298 uint16_t _last_channel_selection;
299 double _default_note_length;
300 uint8_t _current_range_min;
301 uint8_t _current_range_max;
303 /// MIDNAM information of the current track: Model name of MIDNAM file
304 std::string _model_name;
306 /// MIDNAM information of the current track: CustomDeviceMode
307 std::string _custom_device_mode;
309 typedef std::vector<ArdourCanvas::CanvasNoteEvent*> Events;
310 typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasProgramChange> > PgmChanges;
312 boost::shared_ptr<ARDOUR::MidiModel> _model;
314 PgmChanges _pgm_changes;
315 ArdourCanvas::CanvasNote** _active_notes;
316 ArdourCanvas::Group* _note_group;
317 ARDOUR::MidiModel::DeltaCommand* _delta_command;
319 MouseState _mouse_state;
322 typedef std::set<ArdourCanvas::CanvasNoteEvent*> Selection;
323 /// Currently selected CanvasNoteEvents
324 Selection _selection;
326 /** New notes (created in the current command) which should be selected
327 * when they appear after the command is applied. */
328 std::set< boost::shared_ptr<NoteType> > _marked_for_selection;
330 std::vector<NoteResizeData *> _resize_data;
333 #endif /* __gtk_ardour_midi_region_view_h__ */