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livetrax/gtk2_ardour/midi_region_view.h
David Robillard 8be2e11c65 Implement range selecting for MIDI notes (#4087). 
git-svn-id: svn://localhost/ardour2/branches/3.0@10199 d708f5d6-7413-0410-9779-e7cbd77b26cf
2011-10-07 21:11:19 +00:00

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/*
Copyright (C) 2001-2011 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtk_ardour_midi_region_view_h__
#define __gtk_ardour_midi_region_view_h__
#include <string>
#include <vector>
#include <libgnomecanvasmm.h>
#include <libgnomecanvasmm/polygon.h>
#include "pbd/signals.h"
#include "ardour/midi_track.h"
#include "ardour/midi_region.h"
#include "ardour/midi_model.h"
#include "ardour/diskstream.h"
#include "ardour/types.h"
#include "editing.h"
#include "region_view.h"
#include "midi_time_axis.h"
#include "time_axis_view_item.h"
#include "automation_line.h"
#include "enums.h"
#include "canvas.h"
#include "canvas-hit.h"
#include "canvas-note.h"
#include "canvas-note-event.h"
#include "canvas_patch_change.h"
#include "canvas-sysex.h"
namespace ARDOUR {
class MidiRegion;
class MidiModel;
class Filter;
};
namespace MIDI {
namespace Name {
struct PatchPrimaryKey;
};
};
class MidiTimeAxisView;
class GhostRegion;
class AutomationTimeAxisView;
class AutomationRegionView;
class MidiCutBuffer;
class MidiListEditor;
class EditNoteDialog;
class MidiRegionView : public RegionView
{
public:
typedef Evoral::Note<Evoral::MusicalTime> NoteType;
typedef Evoral::Sequence<Evoral::MusicalTime>::Notes Notes;
MidiRegionView (ArdourCanvas::Group *,
RouteTimeAxisView&,
boost::shared_ptr<ARDOUR::MidiRegion>,
double initial_samples_per_unit,
Gdk::Color const & basic_color);
MidiRegionView (const MidiRegionView& other);
MidiRegionView (const MidiRegionView& other, boost::shared_ptr<ARDOUR::MidiRegion>);
~MidiRegionView ();
virtual void init (Gdk::Color const & basic_color, bool wfd);
inline const boost::shared_ptr<ARDOUR::MidiRegion> midi_region() const
{ return boost::dynamic_pointer_cast<ARDOUR::MidiRegion>(_region); }
inline MidiTimeAxisView* midi_view() const
{ return dynamic_cast<MidiTimeAxisView*>(&trackview); }
inline MidiStreamView* midi_stream_view() const
{ return midi_view()->midi_view(); }
void step_add_note (uint8_t channel, uint8_t number, uint8_t velocity,
Evoral::MusicalTime pos, Evoral::MusicalTime len);
void step_sustain (Evoral::MusicalTime beats);
void set_height (double);
void apply_note_range(uint8_t lowest, uint8_t highest, bool force=false);
inline ARDOUR::ColorMode color_mode() const { return midi_view()->color_mode(); }
void set_frame_color();
void color_handler ();
void show_step_edit_cursor (Evoral::MusicalTime pos);
void move_step_edit_cursor (Evoral::MusicalTime pos);
void hide_step_edit_cursor ();
void set_step_edit_cursor_width (Evoral::MusicalTime beats);
void redisplay_model();
GhostRegion* add_ghost (TimeAxisView&);
void add_note(const boost::shared_ptr<NoteType> note, bool visible);
void resolve_note(uint8_t note_num, double end_time);
void cut_copy_clear (Editing::CutCopyOp);
void paste (framepos_t pos, float times, const MidiCutBuffer&);
/** Add a new patch change flag to the canvas.
* @param patch the patch change to add
* @param the text to display in the flag
*/
void add_canvas_patch_change (ARDOUR::MidiModel::PatchChangePtr patch, const std::string& displaytext);
/** Look up the given time and channel in the 'automation' and set keys accordingly.
* @param time the time of the patch change event
* @param channel the MIDI channel of the event
* @key a reference to an instance of MIDI::Name::PatchPrimaryKey whose fields will
* will be set according to the result of the lookup
*/
void get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key);
/** Change old_patch to new_patch.
* @param old_patch the canvas patch change which is to be altered
* @param new_patch new patch
*/
void change_patch_change (ArdourCanvas::CanvasPatchChange& old_patch, const MIDI::Name::PatchPrimaryKey& new_patch);
void change_patch_change (ARDOUR::MidiModel::PatchChangePtr, Evoral::PatchChange<Evoral::MusicalTime> const &);
void add_patch_change (framecnt_t, Evoral::PatchChange<Evoral::MusicalTime> const &);
void move_patch_change (ArdourCanvas::CanvasPatchChange &, Evoral::MusicalTime);
void delete_patch_change (ArdourCanvas::CanvasPatchChange *);
void edit_patch_change (ArdourCanvas::CanvasPatchChange *);
/** Alter a given patch to be its predecessor in the MIDNAM file.
*/
void previous_patch (ArdourCanvas::CanvasPatchChange &);
/** Alters a given patch to be its successor in the MIDNAM file.
*/
void next_patch (ArdourCanvas::CanvasPatchChange &);
void previous_bank (ArdourCanvas::CanvasPatchChange &);
void next_bank (ArdourCanvas::CanvasPatchChange &);
/** Displays all patch change events in the region as flags on the canvas.
*/
void display_patch_changes();
/** Displays all system exclusive events in the region as flags on the canvas.
*/
void display_sysexes();
void begin_write();
void end_write();
void extend_active_notes();
void display_model(boost::shared_ptr<ARDOUR::MidiModel> model);
void start_note_diff_command (std::string name = "midi edit");
void note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::MidiModel::NoteDiffCommand::Property, uint8_t val);
void note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::MidiModel::NoteDiffCommand::Property, Evoral::MusicalTime val);
void note_diff_add_note (const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity = false);
void note_diff_remove_note (ArdourCanvas::CanvasNoteEvent* ev);
void apply_diff (bool as_subcommand = false);
void abort_command();
void note_entered(ArdourCanvas::CanvasNoteEvent* ev);
void note_left(ArdourCanvas::CanvasNoteEvent* ev);
void patch_entered (ArdourCanvas::CanvasPatchChange *);
void patch_left (ArdourCanvas::CanvasPatchChange *);
void note_mouse_position (float xfraction, float yfraction, bool can_set_cursor=true);
void unique_select(ArdourCanvas::CanvasNoteEvent* ev);
void note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend=false);
void note_deselected(ArdourCanvas::CanvasNoteEvent* ev);
void delete_selection();
void delete_note (boost::shared_ptr<NoteType>);
size_t selection_size() { return _selection.size(); }
void select_all_notes ();
void select_range(framepos_t start, framepos_t end);
void invert_selection ();
void move_selection(double dx, double dy, double cumulative_dy);
void note_dropped (ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::frameoffset_t, int8_t d_note);
void select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend);
void toggle_matching_notes (uint8_t notenum, uint16_t channel_mask);
/** Return true iff the note is within the extent of the region.
* @param visible will be set to true if the note is within the visible note range, false otherwise.
*/
bool note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const;
/** Get the region position in pixels relative to session. */
double get_position_pixels();
/** Get the region end position in pixels relative to session. */
double get_end_position_pixels();
/** Begin resizing of some notes.
* Called by CanvasMidiNote when resizing starts.
* @param at_front which end of the note (true == note on, false == note off)
*/
void begin_resizing(bool at_front);
void update_resizing (ArdourCanvas::CanvasNoteEvent*, bool, double, bool);
void commit_resizing (ArdourCanvas::CanvasNoteEvent*, bool, double, bool);
/** Change the channel of the selection.
* @param channel - the channel number of the new channel, zero-based
*/
void change_channel(uint8_t channel);
enum MouseState {
None,
Pressed,
SelectTouchDragging,
SelectRectDragging,
AddDragging
};
MouseState mouse_state() const { return _mouse_state; }
struct NoteResizeData {
ArdourCanvas::CanvasNote *canvas_note;
ArdourCanvas::SimpleRect *resize_rect;
};
/** Snap a region relative pixel coordinate to pixel units.
* @param x a pixel coordinate relative to region start
* @return the snapped pixel coordinate relative to region start
*/
double snap_to_pixel(double x);
/** Snap a region relative pixel coordinate to frame units.
* @param x a pixel coordinate relative to region start
* @return the snapped framepos_t coordinate relative to region start
*/
framepos_t snap_pixel_to_frame(double x);
/** Convert a timestamp in beats into frames (both relative to region start) */
framepos_t region_beats_to_region_frames(double beats) const;
/** Convert a timestamp in beats into absolute frames */
framepos_t region_beats_to_absolute_frames(double beats) const {
return _region->position() + region_beats_to_region_frames (beats);
}
/** Convert a timestamp in frames to beats (both relative to region start) */
double region_frames_to_region_beats(framepos_t) const;
/** Convert a timestamp in beats measured from source start into absolute frames */
framepos_t source_beats_to_absolute_frames(double beats) const;
/** Convert a timestamp in beats measured from source start into region-relative frames */
framepos_t source_beats_to_region_frames(double beats) const {
return source_beats_to_absolute_frames (beats) - _region->position();
}
/** Convert a timestamp in absolute frames to beats measured from source start*/
double absolute_frames_to_source_beats(framepos_t) const;
void goto_previous_note (bool add_to_selection);
void goto_next_note (bool add_to_selection);
void change_note_lengths (bool, bool, Evoral::MusicalTime beats, bool start, bool end);
void change_velocities (bool up, bool fine, bool allow_smush);
void transpose (bool up, bool fine, bool allow_smush);
void nudge_notes (bool forward);
void channel_edit ();
void show_list_editor ();
void selection_as_notelist (Notes& selected, bool allow_all_if_none_selected = false);
void enable_display (bool);
void set_channel_selector_scoped_note(ArdourCanvas::CanvasNoteEvent* note){ _channel_selection_scoped_note = note; }
ArdourCanvas::CanvasNoteEvent* channel_selector_scoped_note(){ return _channel_selection_scoped_note; }
void trim_front_starting ();
void trim_front_ending ();
protected:
/** Allows derived types to specify their visibility requirements
* to the TimeAxisViewItem parent class.
*/
MidiRegionView (ArdourCanvas::Group *,
RouteTimeAxisView&,
boost::shared_ptr<ARDOUR::MidiRegion>,
double samples_per_unit,
Gdk::Color& basic_color,
TimeAxisViewItem::Visibility);
void region_resized (const PBD::PropertyChange&);
void set_flags (XMLNode *);
void store_flags ();
void reset_width_dependent_items (double pixel_width);
void parameter_changed (std::string const & p);
private:
/** Emitted when the selection has been cleared in one MidiRegionView */
static PBD::Signal1<void, MidiRegionView*> SelectionCleared;
PBD::ScopedConnection _selection_cleared_connection;
void selection_cleared (MidiRegionView *);
friend class EditNoteDialog;
void create_note_at(double x, double y, double length, bool, bool);
/** Play the NoteOn event of the given note immediately
* and schedule the playback of the corresponding NoteOff event.
*/
void play_midi_note(boost::shared_ptr<NoteType> note);
void play_midi_chord (std::vector<boost::shared_ptr<NoteType> > notes);
/** Play the NoteOff-Event of the given note immediately
* (scheduled by @ref play_midi_note()).
*/
bool play_midi_note_off(boost::shared_ptr<NoteType> note);
void clear_events();
bool canvas_event(GdkEvent* ev);
bool note_canvas_event(GdkEvent* ev);
void midi_channel_mode_changed(ARDOUR::ChannelMode mode, uint16_t mask);
void midi_patch_settings_changed(std::string model, std::string custom_device_mode);
void change_note_channel (ArdourCanvas::CanvasNoteEvent *, int8_t, bool relative=false);
void change_note_velocity(ArdourCanvas::CanvasNoteEvent* ev, int8_t vel, bool relative=false);
void change_note_note(ArdourCanvas::CanvasNoteEvent* ev, int8_t note, bool relative=false);
void change_note_time(ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::MidiModel::TimeType, bool relative=false);
void change_note_length (ArdourCanvas::CanvasNoteEvent *, ARDOUR::MidiModel::TimeType);
void trim_note(ArdourCanvas::CanvasNoteEvent* ev, ARDOUR::MidiModel::TimeType start_delta,
ARDOUR::MidiModel::TimeType end_delta);
void clear_selection_except (ArdourCanvas::CanvasNoteEvent* ev, bool signal = true);
void clear_selection (bool signal = true) { clear_selection_except (0, signal); }
void update_drag_selection (double last_x, double x, double last_y, double y, bool extend);
void add_to_selection (ArdourCanvas::CanvasNoteEvent*);
void remove_from_selection (ArdourCanvas::CanvasNoteEvent*);
void show_verbose_cursor (std::string const &, double, double) const;
void show_verbose_cursor (boost::shared_ptr<NoteType>) const;
int8_t _force_channel;
uint16_t _last_channel_selection;
uint8_t _current_range_min;
uint8_t _current_range_max;
/// MIDNAM information of the current track: Model name of MIDNAM file
std::string _model_name;
/// MIDNAM information of the current track: CustomDeviceMode
std::string _custom_device_mode;
typedef std::list<ArdourCanvas::CanvasNoteEvent*> Events;
typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasPatchChange> > PatchChanges;
typedef std::vector< boost::shared_ptr<ArdourCanvas::CanvasSysEx> > SysExes;
boost::shared_ptr<ARDOUR::MidiModel> _model;
Events _events;
PatchChanges _patch_changes;
SysExes _sys_exes;
ArdourCanvas::CanvasNote** _active_notes;
ArdourCanvas::Group* _note_group;
ARDOUR::MidiModel::NoteDiffCommand* _note_diff_command;
ArdourCanvas::CanvasNote* _ghost_note;
double _last_ghost_x;
double _last_ghost_y;
double _drag_start_x;
double _drag_start_y;
double _last_x;
double _last_y;
ArdourCanvas::SimpleRect* _drag_rect;
ArdourCanvas::SimpleRect* _step_edit_cursor;
Evoral::MusicalTime _step_edit_cursor_width;
Evoral::MusicalTime _step_edit_cursor_position;
ArdourCanvas::CanvasNoteEvent* _channel_selection_scoped_note;
/** A group used to temporarily reparent _note_group to during start trims, so
* that the notes don't move with the parent region view.
*/
ArdourCanvas::Group* _temporary_note_group;
MouseState _mouse_state;
int _pressed_button;
typedef std::set<ArdourCanvas::CanvasNoteEvent*> Selection;
/// Currently selected CanvasNoteEvents
Selection _selection;
bool _sort_needed;
void time_sort_events ();
MidiCutBuffer* selection_as_cut_buffer () const;
/** New notes (created in the current command) which should be selected
* when they appear after the command is applied. */
std::set< boost::shared_ptr<NoteType> > _marked_for_selection;
/** New notes (created in the current command) which should have visible velocity
* when they appear after the command is applied. */
std::set< boost::shared_ptr<NoteType> > _marked_for_velocity;
std::vector<NoteResizeData *> _resize_data;
/** connection used to connect to model's ContentChanged signal */
PBD::ScopedConnection content_connection;
ArdourCanvas::CanvasNoteEvent* find_canvas_note (boost::shared_ptr<NoteType>);
Events::iterator _optimization_iterator;
void update_note (ArdourCanvas::CanvasNote *, bool update_ghost_regions = true);
double update_hit (ArdourCanvas::CanvasHit *);
void create_ghost_note (double, double);
void update_ghost_note (double, double);
MidiListEditor* _list_editor;
bool _no_sound_notes;
PBD::ScopedConnection note_delete_connection;
void maybe_remove_deleted_note_from_selection (ArdourCanvas::CanvasNoteEvent*);
void snap_changed ();
PBD::ScopedConnection snap_changed_connection;
bool motion (GdkEventMotion*);
bool scroll (GdkEventScroll*);
bool key_press (GdkEventKey*);
bool key_release (GdkEventKey*);
bool button_press (GdkEventButton*);
bool button_release (GdkEventButton*);
bool enter_notify (GdkEventCrossing*);
bool leave_notify (GdkEventCrossing*);
void drop_down_keys ();
void maybe_select_by_position (GdkEventButton* ev, double x, double y);
void get_events (Events& e, Evoral::Sequence<Evoral::MusicalTime>::NoteOperator op, uint8_t val, int chan_mask = 0);
void display_patch_changes_on_channel (uint8_t);
void connect_to_diskstream ();
void data_recorded (boost::shared_ptr<ARDOUR::MidiBuffer>, boost::weak_ptr<ARDOUR::MidiSource>);
void remove_ghost_note ();
void mouse_mode_changed ();
double _last_event_x;
double _last_event_y;
framepos_t snap_frame_to_grid_underneath (framepos_t p, framecnt_t &) const;
PBD::ScopedConnection _mouse_mode_connection;
Gdk::Cursor* _pre_enter_cursor;
};
#endif /* __gtk_ardour_midi_region_view_h__ */
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