gtk2_ardour/midi_region_view.h

   1 /*
   2     Copyright (C) 2001-2011 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 #ifndef __gtk_ardour_midi_region_view_h__
  20 #define __gtk_ardour_midi_region_view_h__
  21
  22 #include <string>
  23 #include <vector>
  24
  25 #include <libgnomecanvasmm.h>
  26 #include <libgnomecanvasmm/polygon.h>
  27
  28 #include "pbd/signals.h"
  29
  30 #include "ardour/midi_track.h"
  31 #include "ardour/midi_region.h"
  32 #include "ardour/midi_model.h"
  33 #include "ardour/diskstream.h"
  34 #include "ardour/types.h"
  35
  36 #include "editing.h"
  37 #include "region_view.h"
  38 #include "midi_time_axis.h"
  39 #include "time_axis_view_item.h"
  40 #include "automation_line.h"
  41 #include "enums.h"
  42 #include "canvas.h"
  43 #include "canvas-hit.h"
  44 #include "canvas-note.h"
  45 #include "canvas-note-event.h"
  46 #include "canvas_patch_change.h"
  47 #include "canvas-sysex.h"
  48
  49 namespace ARDOUR {
  50         class MidiRegion;
  51         class MidiModel;
  52         class Filter;
  53 };
  54
  55 namespace MIDI {
  56         namespace Name {
  57                 struct PatchPrimaryKey;
  58         };
  59 };
  60
  61 class MidiTimeAxisView;
  62 class GhostRegion;
  63 class AutomationTimeAxisView;
  64 class AutomationRegionView;
  65 class MidiCutBuffer;
  66 class MidiListEditor;
  67 class EditNoteDialog;
  68
  69 class MidiRegionView : public RegionView
  70 {
  71 public:
  72         typedef Evoral::Note<Evoral::MusicalTime> NoteType;
  73         typedef Evoral::Sequence<Evoral::MusicalTime>::Notes Notes;
  74
  75         MidiRegionView (ArdourCanvas::Group *,
  76                         RouteTimeAxisView&,
  77                         boost::shared_ptr<ARDOUR::MidiRegion>,
  78                         double initial_samples_per_unit,
  79                         Gdk::Color const & basic_color);
  80
  81         MidiRegionView (const MidiRegionView& other);
  82         MidiRegionView (const MidiRegionView& other, boost::shared_ptr<ARDOUR::MidiRegion>);
  83
  84         ~MidiRegionView ();
  85
  86         virtual void init (Gdk::Color const & basic_color, bool wfd);
  87
  88         inline const boost::shared_ptr<ARDOUR::MidiRegion> midi_region() const
  89         { return boost::dynamic_pointer_cast<ARDOUR::MidiRegion>(_region); }
  90
  91         inline MidiTimeAxisView* midi_view() const
  92         { return dynamic_cast<MidiTimeAxisView*>(&trackview); }
  93
  94         inline MidiStreamView* midi_stream_view() const
  95         { return midi_view()->midi_view(); }
  96
  97         void step_add_note (uint8_t channel, uint8_t number, uint8_t velocity,
  98                             Evoral::MusicalTime pos, Evoral::MusicalTime len);
  99         void step_sustain (Evoral::MusicalTime beats);
 100         void set_height (double);
 101         void apply_note_range(uint8_t lowest, uint8_t highest, bool force=false);
 102
 103         inline ARDOUR::ColorMode color_mode() const { return midi_view()->color_mode(); }
 104
 105         void set_frame_color();
 106         void color_handler ();
 107
 108         void show_step_edit_cursor (Evoral::MusicalTime pos);
 109         void move_step_edit_cursor (Evoral::MusicalTime pos);
 110         void hide_step_edit_cursor ();
 111         void set_step_edit_cursor_width (Evoral::MusicalTime beats);
 112
 113         void redisplay_model();
 114
 115         GhostRegion* add_ghost (TimeAxisView&);
 116
 117         void add_note(const boost::shared_ptr<NoteType> note, bool visible);
 118         void resolve_note(uint8_t note_num, double end_time);
 119
 120         void cut_copy_clear (Editing::CutCopyOp);
 121         void paste (framepos_t pos, float times, const MidiCutBuffer&);
 122
 123         /** Add a new patch change flag to the canvas.
 124          * @param patch the patch change to add
 125          * @param the text to display in the flag
 126          */
 127         void add_canvas_patch_change (ARDOUR::MidiModel::PatchChangePtr patch, const std::string& displaytext);
 128
 129         /** Look up the given time and channel in the 'automation' and set keys accordingly.
 130          * @param time the time of the patch change event
 131          * @param channel the MIDI channel of the event
 132          * @key a reference to an instance of MIDI::Name::PatchPrimaryKey whose fields will
 133          *        will be set according to the result of the lookup
 134          */
 135         void get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key);
 136
 137         /** Change old_patch to new_patch.
 138          * @param old_patch the canvas patch change which is to be altered
 139          * @param new_patch new patch
 140          */
 141         void change_patch_change (ArdourCanvas::CanvasPatchChange& old_patch, const MIDI::Name::PatchPrimaryKey& new_patch);
 142         void change_patch_change (ARDOUR::MidiModel::PatchChangePtr, Evoral::PatchChange<Evoral::MusicalTime> const &);
 143
 144         void add_patch_change (framecnt_t, Evoral::PatchChange<Evoral::MusicalTime> const &);
 145         void move_patch_change (ArdourCanvas::CanvasPatchChange &, Evoral::MusicalTime);
 146         void delete_patch_change (ArdourCanvas::CanvasPatchChange *);
 147         void edit_patch_change (ArdourCanvas::CanvasPatchChange *);
 148
 149         /** Alter a given patch to be its predecessor in the MIDNAM file.
 150          */
 151         void previous_patch (ArdourCanvas::CanvasPatchChange &);
 152
 153         /** Alters a given patch to be its successor in the MIDNAM file.
 154          */
 155         void next_patch (ArdourCanvas::CanvasPatchChange &);
 156
 157         /** Displays all patch change events in the region as flags on the canvas.
 158          */
 159         void display_patch_changes();
 160
 161         /** Displays all system exclusive events in the region as flags on the canvas.
 162          */
 163         void display_sysexes();
 164
 165         void begin_write();
 166         void end_write();
 167         void extend_active_notes();
 168
 169         void create_note_at(double x, double y, double length, bool);
 170
 171         void display_model(boost::shared_ptr<ARDOUR::MidiModel> model);
 172
 173         void start_note_diff_command (std::string name = "midi edit");
 174         void note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::MidiModel::NoteDiffCommand::Property, uint8_t val);
 175         void note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::MidiModel::NoteDiffCommand::Property, Evoral::MusicalTime val);
 176         void note_diff_add_note (const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity = false);
 177         void note_diff_remove_note (ArdourCanvas::CanvasNoteEvent* ev);
 178
 179         void apply_diff (bool as_subcommand = false);
 180         void abort_command();
 181
 182         void   note_entered(ArdourCanvas::CanvasNoteEvent* ev);
 183         void   note_left(ArdourCanvas::CanvasNoteEvent* ev);
 184         void   patch_entered (ArdourCanvas::CanvasPatchChange *);
 185         void   patch_left (ArdourCanvas::CanvasPatchChange *);
 186         void   note_mouse_position (float xfraction, float yfraction, bool can_set_cursor=true);
 187         void   unique_select(ArdourCanvas::CanvasNoteEvent* ev);
 188         void   note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend=false);
 189         void   note_deselected(ArdourCanvas::CanvasNoteEvent* ev);
 190         void   delete_selection();
 191         void   delete_note (boost::shared_ptr<NoteType>);
 192         size_t selection_size() { return _selection.size(); }
 193         void   select_all_notes ();
 194
 195         void move_selection(double dx, double dy, double cumulative_dy);
 196         void note_dropped (ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::frameoffset_t, int8_t d_note);
 197
 198         void select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend);
 199         void toggle_matching_notes (uint8_t notenum, uint16_t channel_mask);
 200
 201         /** Return true iff the note is within the extent of the region.
 202          * @param visible will be set to true if the note is within the visible note range, false otherwise.
 203          */
 204         bool note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const;
 205
 206         /** Get the region position in pixels relative to session. */
 207         double get_position_pixels();
 208
 209         /** Get the region end position in pixels relative to session. */
 210         double get_end_position_pixels();
 211
 212         /** Begin resizing of some notes.
 213          * Called by CanvasMidiNote when resizing starts.
 214          * @param at_front which end of the note (true == note on, false == note off)
 215          */
 216         void begin_resizing(bool at_front);
 217
 218         void update_resizing (ArdourCanvas::CanvasNoteEvent*, bool, double, bool);
 219         void commit_resizing (ArdourCanvas::CanvasNoteEvent*, bool, double, bool);
 220
 221         /** Change the channel of the selection.
 222          * @param channel - the channel number of the new channel, zero-based
 223          */
 224         void change_channel(uint8_t channel);
 225
 226         enum MouseState {
 227                 None,
 228                 Pressed,
 229                 SelectTouchDragging,
 230                 SelectRectDragging,
 231                 AddDragging
 232         };
 233
 234         MouseState mouse_state() const { return _mouse_state; }
 235
 236         struct NoteResizeData {
 237                 ArdourCanvas::CanvasNote  *canvas_note;
 238                 ArdourCanvas::SimpleRect  *resize_rect;
 239         };
 240
 241         /** Snap a region relative pixel coordinate to pixel units.
 242          * @param x a pixel coordinate relative to region start
 243          * @return the snapped pixel coordinate relative to region start
 244          */
 245         double snap_to_pixel(double x);
 246
 247         /** Snap a region relative pixel coordinate to frame units.
 248          * @param x a pixel coordinate relative to region start
 249          * @return the snapped framepos_t coordinate relative to region start
 250          */
 251         framepos_t snap_pixel_to_frame(double x);
 252
 253         ARDOUR::frameoffset_t snap_frame_to_frame (ARDOUR::frameoffset_t);
 254
 255         /** Convert a timestamp in beats to frames (both relative to region start) */
 256         framepos_t beats_to_frames(double beats) const;
 257
 258         /** Convert a timestamp in frames to beats (both relative to region start) */
 259         double frames_to_beats(framepos_t) const;
 260
 261         void goto_previous_note ();
 262         void goto_next_note ();
 263         void change_note_lengths (bool, bool, Evoral::MusicalTime beats, bool start, bool end);
 264         void change_velocities (bool up, bool fine, bool allow_smush);
 265         void transpose (bool up, bool fine, bool allow_smush);
 266         void nudge_notes (bool forward);
 267         void channel_edit ();
 268
 269         void show_list_editor ();
 270
 271         void selection_as_notelist (Notes& selected, bool allow_all_if_none_selected = false);
 272
 273         void enable_display (bool);
 274
 275         void set_channel_selector_scoped_note(ArdourCanvas::CanvasNoteEvent* note){ _channel_selection_scoped_note = note; }
 276         ArdourCanvas::CanvasNoteEvent* channel_selector_scoped_note(){  return _channel_selection_scoped_note; }
 277
 278         void trim_front_starting ();
 279         void trim_front_ending ();
 280
 281 protected:
 282         /** Allows derived types to specify their visibility requirements
 283          * to the TimeAxisViewItem parent class.
 284          */
 285         MidiRegionView (ArdourCanvas::Group *,
 286                         RouteTimeAxisView&,
 287                         boost::shared_ptr<ARDOUR::MidiRegion>,
 288                         double samples_per_unit,
 289                         Gdk::Color& basic_color,
 290                         TimeAxisViewItem::Visibility);
 291
 292         void region_resized (const PBD::PropertyChange&);
 293
 294         void set_flags (XMLNode *);
 295         void store_flags ();
 296
 297         void reset_width_dependent_items (double pixel_width);
 298
 299 private:
 300
 301         friend class EditNoteDialog;
 302
 303         /** Play the NoteOn event of the given note immediately
 304          * and schedule the playback of the corresponding NoteOff event.
 305          */
 306         void play_midi_note(boost::shared_ptr<NoteType> note);
 307         void play_midi_chord (std::vector<boost::shared_ptr<NoteType> > notes);
 308
 309         /** Play the NoteOff-Event of the given note immediately
 310          * (scheduled by @ref play_midi_note()).
 311          */
 312         bool play_midi_note_off(boost::shared_ptr<NoteType> note);
 313
 314         void clear_events();
 315
 316         bool canvas_event(GdkEvent* ev);
 317         bool note_canvas_event(GdkEvent* ev);
 318
 319         void midi_channel_mode_changed(ARDOUR::ChannelMode mode, uint16_t mask);
 320         void midi_patch_settings_changed(std::string model, std::string custom_device_mode);
 321
 322         void change_note_channel (ArdourCanvas::CanvasNoteEvent *, int8_t, bool relative=false);
 323         void change_note_velocity(ArdourCanvas::CanvasNoteEvent* ev, int8_t vel, bool relative=false);
 324         void change_note_note(ArdourCanvas::CanvasNoteEvent* ev, int8_t note, bool relative=false);
 325         void change_note_time(ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::MidiModel::TimeType, bool relative=false);
 326         void change_note_length (ArdourCanvas::CanvasNoteEvent *, ARDOUR::MidiModel::TimeType);
 327         void trim_note(ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::MidiModel::TimeType start_delta,
 328                        ARDOUR::MidiModel::TimeType end_delta);
 329
 330         void clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev);
 331         void clear_selection() { clear_selection_except(NULL); }
 332         void update_drag_selection(double last_x, double x, double last_y, double y);
 333
 334         void add_to_selection (ArdourCanvas::CanvasNoteEvent*);
 335         void remove_from_selection (ArdourCanvas::CanvasNoteEvent*);
 336
 337         void show_verbose_cursor (std::string const &, double, double) const;
 338         void show_verbose_cursor (boost::shared_ptr<NoteType>) const;
 339
 340         int8_t   _force_channel;
 341         uint16_t _last_channel_selection;
 342         uint8_t  _current_range_min;
 343         uint8_t  _current_range_max;
 344
 345         /// MIDNAM information of the current track: Model name of MIDNAM file
 346         std::string _model_name;
 347
 348         /// MIDNAM information of the current track: CustomDeviceMode
 349         std::string _custom_device_mode;
 350
 351         typedef std::list<ArdourCanvas::CanvasNoteEvent*> Events;
 352         typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasPatchChange> > PatchChanges;
 353         typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasSysEx> > SysExes;
 354
 355         boost::shared_ptr<ARDOUR::MidiModel> _model;
 356         Events                               _events;
 357         PatchChanges                         _patch_changes;
 358         SysExes                              _sys_exes;
 359         ArdourCanvas::CanvasNote**           _active_notes;
 360         ArdourCanvas::Group*                 _note_group;
 361         ARDOUR::MidiModel::NoteDiffCommand*  _note_diff_command;
 362         ArdourCanvas::CanvasNote*            _ghost_note;
 363         double                               _last_ghost_x;
 364         double                               _last_ghost_y;
 365         double                               _drag_start_x;
 366         double                               _drag_start_y;
 367         double                               _last_x;
 368         double                               _last_y;
 369         ArdourCanvas::SimpleRect*            _drag_rect;
 370         ArdourCanvas::SimpleRect*            _step_edit_cursor;
 371         Evoral::MusicalTime                  _step_edit_cursor_width;
 372         Evoral::MusicalTime                  _step_edit_cursor_position;
 373         ArdourCanvas::CanvasNoteEvent*       _channel_selection_scoped_note;
 374
 375
 376         /** A group used to temporarily reparent _note_group to during start trims, so
 377          *  that the notes don't move with the parent region view.
 378          */
 379         ArdourCanvas::Group*                 _temporary_note_group;
 380
 381         MouseState _mouse_state;
 382         int _pressed_button;
 383
 384         typedef std::set<ArdourCanvas::CanvasNoteEvent*> Selection;
 385         /// Currently selected CanvasNoteEvents
 386         Selection _selection;
 387
 388         bool _sort_needed;
 389         void time_sort_events ();
 390
 391         MidiCutBuffer* selection_as_cut_buffer () const;
 392
 393         /** New notes (created in the current command) which should be selected
 394          * when they appear after the command is applied. */
 395         std::set< boost::shared_ptr<NoteType> > _marked_for_selection;
 396
 397         /** New notes (created in the current command) which should have visible velocity
 398          * when they appear after the command is applied. */
 399         std::set< boost::shared_ptr<NoteType> > _marked_for_velocity;
 400
 401         std::vector<NoteResizeData *> _resize_data;
 402
 403         /** connection used to connect to model's ContentChanged signal */
 404         PBD::ScopedConnection content_connection;
 405
 406         ArdourCanvas::CanvasNoteEvent* find_canvas_note (boost::shared_ptr<NoteType>);
 407         Events::iterator _optimization_iterator;
 408
 409         void update_note (ArdourCanvas::CanvasNote *, bool update_ghost_regions = true);
 410         double update_hit (ArdourCanvas::CanvasHit *);
 411         void create_ghost_note (double, double);
 412         void update_ghost_note (double, double);
 413
 414         MidiListEditor* _list_editor;
 415         bool _no_sound_notes;
 416
 417         PBD::ScopedConnection note_delete_connection;
 418         void maybe_remove_deleted_note_from_selection (ArdourCanvas::CanvasNoteEvent*);
 419
 420         void snap_changed ();
 421         PBD::ScopedConnection snap_changed_connection;
 422
 423         bool motion (GdkEventMotion*);
 424         bool scroll (GdkEventScroll*);
 425         bool key_press (GdkEventKey*);
 426         bool key_release (GdkEventKey*);
 427         bool button_press (GdkEventButton*);
 428         bool button_release (GdkEventButton*);
 429         bool enter_notify (GdkEventCrossing*);
 430         bool leave_notify (GdkEventCrossing*);
 431
 432         void drop_down_keys ();
 433         void maybe_select_by_position (GdkEventButton* ev, double x, double y);
 434         void get_events (Events& e, Evoral::Sequence<Evoral::MusicalTime>::NoteOperator op, uint8_t val, int chan_mask = 0);
 435
 436         void display_patch_changes_on_channel (uint8_t);
 437
 438         void connect_to_diskstream ();
 439         void data_recorded (boost::shared_ptr<ARDOUR::MidiBuffer>, boost::weak_ptr<ARDOUR::MidiSource>);
 440
 441         void remove_ghost_note ();
 442         void mouse_mode_changed ();
 443         double _last_event_x;
 444         double _last_event_y;
 445
 446         PBD::ScopedConnection _mouse_mode_connection;
 447
 448         Gdk::Cursor* _pre_enter_cursor;
 449 };
 450
 451
 452 #endif /* __gtk_ardour_midi_region_view_h__ */