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livetrax/gtk2_ardour/midi_region_view.h

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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 <stdint.h>
#include "pbd/signals.h"
#include "ardour/midi_model.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"
namespace ARDOUR {
class MidiRegion;
class MidiModel;
class Filter;
};
namespace MIDI {
namespace Name {
struct PatchPrimaryKey;
};
};
class SysEx;
class NoteBase;
class Note;
class Hit;
class MidiTimeAxisView;
class GhostRegion;
class AutomationTimeAxisView;
class AutomationRegionView;
class MidiCutBuffer;
class MidiListEditor;
class EditNoteDialog;
class PatchChange;
class ItemCounts;
class CursorContext;
class MidiRegionView : public RegionView
{
public:
typedef Evoral::Note<Temporal::Beats> NoteType;
typedef Evoral::Sequence<Temporal::Beats>::Notes Notes;
MidiRegionView (ArdourCanvas::Container* parent,
RouteTimeAxisView& tv,
boost::shared_ptr<ARDOUR::MidiRegion> r,
double samples_per_pixel,
uint32_t basic_color);
MidiRegionView (ArdourCanvas::Container* parent,
RouteTimeAxisView& tv,
boost::shared_ptr<ARDOUR::MidiRegion> r,
double samples_per_pixel,
uint32_t basic_color,
bool recording,
Visibility visibility);
MidiRegionView (const MidiRegionView& other);
MidiRegionView (const MidiRegionView& other, boost::shared_ptr<ARDOUR::MidiRegion>);
~MidiRegionView ();
void init (bool wfd);
const boost::shared_ptr<ARDOUR::MidiRegion> midi_region() const;
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,
Temporal::Beats pos, Temporal::Beats len);
void step_sustain (Temporal::Beats 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(); }
uint32_t get_fill_color() const;
void color_handler ();
void show_step_edit_cursor (Temporal::Beats pos);
void move_step_edit_cursor (Temporal::Beats pos);
void hide_step_edit_cursor ();
void set_step_edit_cursor_width (Temporal::Beats beats);
void redisplay_model();
GhostRegion* add_ghost (TimeAxisView&);
NoteBase* add_note(const boost::shared_ptr<NoteType> note, bool visible);
void resolve_note(uint8_t note_num, Temporal::Beats end_time);
void cut_copy_clear (Editing::CutCopyOp);
bool paste (samplepos_t pos, const ::Selection& selection, PasteContext& ctx, const int32_t sub_num);
void paste_internal (samplepos_t pos, unsigned paste_count, float times, const MidiCutBuffer&);
void add_canvas_patch_change (ARDOUR::MidiModel::PatchChangePtr patch, const std::string& displaytext, bool);
void remove_canvas_patch_change (PatchChange* pc);
/** 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 (Temporal::Beats time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key) const;
/** Convert a given PatchChange into a PatchPrimaryKey
*/
MIDI::Name::PatchPrimaryKey patch_change_to_patch_key (ARDOUR::MidiModel::PatchChangePtr);
/** 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 (PatchChange& old_patch, const MIDI::Name::PatchPrimaryKey& new_patch);
void change_patch_change (ARDOUR::MidiModel::PatchChangePtr, Evoral::PatchChange<Temporal::Beats> const &);
void add_patch_change (samplecnt_t, Evoral::PatchChange<Temporal::Beats> const &);
void move_patch_change (PatchChange &, Temporal::Beats);
void delete_patch_change (PatchChange *);
void edit_patch_change (PatchChange *);
void delete_sysex (SysEx*);
/** Change a patch to the next or previous bank/program.
* @param bank If true, step bank, otherwise, step program.
* @param delta Amount to adjust number.
*/
void step_patch (PatchChange& patch, bool bank, int delta);
/** 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 (NoteBase* ev, ARDOUR::MidiModel::NoteDiffCommand::Property, uint8_t val);
void note_diff_add_change (NoteBase* ev, ARDOUR::MidiModel::NoteDiffCommand::Property, Temporal::Beats val);
void note_diff_add_note (const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity = false);
void note_diff_remove_note (NoteBase* ev);
void apply_diff (bool as_subcommand = false, bool was_copy = false);
void abort_command();
void note_entered(NoteBase* ev);
void note_left(NoteBase* ev);
void patch_entered (PatchChange *);
void patch_left (PatchChange *);
void sysex_entered (SysEx* p);
void sysex_left (SysEx* p);
void note_mouse_position (float xfraction, float yfraction, bool can_set_cursor=true);
void unique_select(NoteBase* ev);
void note_selected(NoteBase* ev, bool add, bool extend=false);
void note_deselected(NoteBase* 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(samplepos_t start, samplepos_t end);
void invert_selection ();
Temporal::Beats earliest_in_selection ();
void move_selection(double dx, double dy, double cumulative_dy);
void note_dropped (NoteBase* ev, double d_qn, int8_t d_note, bool copy);
NoteBase* copy_selection (NoteBase* primary);
void move_copies(double dx_qn, double dy, double cumulative_dy);
void select_notes (std::list<Evoral::event_id_t>);
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 (NoteBase* primary, bool at_front, double delta_x, bool relative, double snap_delta, bool with_snap);
void commit_resizing (NoteBase* primary, bool at_front, double delat_x, bool relative, double snap_delta, bool with_snap);
void abort_resizing ();
/** 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,
SelectVerticalDragging,
AddDragging
};
MouseState mouse_state() const { return _mouse_state; }
struct NoteResizeData {
Note *note;
ArdourCanvas::Rectangle *resize_rect;
};
/** Snap a region relative pixel coordinate to pixel units.
* @param x a pixel coordinate relative to region start
* @param ensure_snap do not use magnetic snap (required for snap delta calculation)
* @return the snapped pixel coordinate relative to region start
*/
double snap_to_pixel(double x, bool ensure_snap = false);
/** Snap a region relative pixel coordinate to sample units.
* @param x a pixel coordinate relative to region start
* @param ensure_snap ignore SnapOff and magnetic snap.
* Required for inverting snap logic with modifier keys and snap delta calculation.
* @return the snapped samplepos_t coordinate relative to region start
*/
samplepos_t snap_pixel_to_sample(double x, bool ensure_snap = false);
/** Convert a timestamp in beats into samples (both relative to region position) */
samplepos_t region_beats_to_region_samples(Temporal::Beats beats) const;
/** Convert a timestamp in beats into absolute samples */
samplepos_t region_beats_to_absolute_samples(Temporal::Beats beats) const {
return _region->position() + region_beats_to_region_samples (beats);
}
/** Convert a timestamp in samples to beats (both relative to region position) */
Temporal::Beats region_samples_to_region_beats(samplepos_t) const;
double region_samples_to_region_beats_double(samplepos_t) const;
/** Convert a timestamp in beats measured from source start into absolute samples */
samplepos_t source_beats_to_absolute_samples(Temporal::Beats beats) const;
/** Convert a timestamp in beats measured from source start into region-relative samples */
samplepos_t source_beats_to_region_samples(Temporal::Beats beats) const {
return source_beats_to_absolute_samples (beats) - _region->position();
}
/** Convert a timestamp in absolute samples to beats measured from source start*/
Temporal::Beats absolute_samples_to_source_beats(samplepos_t) const;
ARDOUR::BeatsSamplesConverter const & region_relative_time_converter () const {
return _region_relative_time_converter;
}
ARDOUR::BeatsSamplesConverter const & source_relative_time_converter () const {
return _source_relative_time_converter;
}
ARDOUR::DoubleBeatsSamplesConverter const & region_relative_time_converter_double () const {
return _region_relative_time_converter_double;
}
double session_relative_qn (double qn) const;
void goto_previous_note (bool add_to_selection);
void goto_next_note (bool add_to_selection);
void change_note_lengths (bool, bool, Temporal::Beats beats, bool start, bool end);
void change_velocities (bool up, bool fine, bool allow_smush, bool all_together);
void transpose (bool up, bool fine, bool allow_smush);
void nudge_notes (bool forward, bool fine);
void channel_edit ();
void velocity_edit ();
void show_list_editor ();
typedef std::set<NoteBase*> Selection;
Selection selection () const {
return _selection;
}
void selection_as_notelist (Notes& selected, bool allow_all_if_none_selected = false);
void enable_display (bool);
void set_channel_selector_scoped_note(NoteBase* note){ _channel_selection_scoped_note = note; }
NoteBase* channel_selector_scoped_note(){ return _channel_selection_scoped_note; }
void trim_front_starting ();
void trim_front_ending ();
/** Add a note to the model, and the view, at a canvas (click) coordinate.
* \param t time in samples relative to the position of the region
* \param y vertical position in pixels
* \param length duration of the note in beats
* \param state the keyboard modifier mask for the canvas event (click).
* \param shift_snap true alters snap behavior to round down always (false if the gui has already done that).
*/
void create_note_at (samplepos_t t, double y, Temporal::Beats length, uint32_t state, bool shift_snap);
/** An external request to clear the note selection, remove MRV from editor
* selection.
*/
void clear_selection ();
ARDOUR::InstrumentInfo& instrument_info() const;
void note_deleted (NoteBase*);
void show_verbose_cursor_for_new_note_value(boost::shared_ptr<NoteType> current_note,
uint8_t new_note) const;
protected:
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:
friend class MidiRubberbandSelectDrag;
friend class MidiVerticalSelectDrag;
friend class NoteDrag;
friend class NoteCreateDrag;
friend class HitCreateDrag;
friend class MidiGhostRegion;
friend class EditNoteDialog;
/** 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 start_playing_midi_note (boost::shared_ptr<NoteType> note);
void start_playing_midi_chord (std::vector<boost::shared_ptr<NoteType> > notes);
/** Clear the note selection of just this midi region
*/
void clear_selection_internal ();
void clear_editor_note_selection ();
void clear_events ();
bool canvas_group_event(GdkEvent* ev);
bool note_canvas_event(GdkEvent* ev);
void midi_channel_mode_changed ();
PBD::ScopedConnection _channel_mode_changed_connection;
void instrument_settings_changed ();
PBD::ScopedConnection _instrument_changed_connection;
void change_note_channel (NoteBase *, int8_t, bool relative=false);
void change_note_velocity(NoteBase* ev, int8_t vel, bool relative=false);
void change_note_note(NoteBase* ev, int8_t note, bool relative=false);
void change_note_time(NoteBase* ev, ARDOUR::MidiModel::TimeType, bool relative=false);
void change_note_length (NoteBase *, ARDOUR::MidiModel::TimeType);
void trim_note(NoteBase* ev, ARDOUR::MidiModel::TimeType start_delta,
ARDOUR::MidiModel::TimeType end_delta);
void update_drag_selection (samplepos_t start, samplepos_t end, double y0, double y1, bool extend);
void update_vertical_drag_selection (double last_y, double y, bool extend);
void add_to_selection (NoteBase*);
void remove_from_selection (NoteBase*);
std::string get_note_name (boost::shared_ptr<NoteType> note, uint8_t note_value) const;
void show_verbose_cursor (std::string const &, double, double) const;
void show_verbose_cursor (boost::shared_ptr<NoteType>) const;
uint8_t get_velocity_for_add (ARDOUR::MidiModel::TimeType time) const;
uint8_t _current_range_min;
uint8_t _current_range_max;
typedef boost::unordered_map<boost::shared_ptr<NoteType>, NoteBase*> Events;
typedef boost::unordered_map<ARDOUR::MidiModel::PatchChangePtr, boost::shared_ptr<PatchChange> > PatchChanges;
typedef boost::unordered_map<ARDOUR::MidiModel::constSysExPtr, boost::shared_ptr<SysEx> > SysExes;
typedef std::vector<NoteBase*> CopyDragEvents;
ARDOUR::BeatsSamplesConverter _region_relative_time_converter;
ARDOUR::BeatsSamplesConverter _source_relative_time_converter;
ARDOUR::DoubleBeatsSamplesConverter _region_relative_time_converter_double;
boost::shared_ptr<ARDOUR::MidiModel> _model;
Events _events;
CopyDragEvents _copy_drag_events;
PatchChanges _patch_changes;
SysExes _sys_exes;
Note** _active_notes;
ArdourCanvas::Container* _note_group;
ARDOUR::MidiModel::NoteDiffCommand* _note_diff_command;
NoteBase* _ghost_note;
double _last_ghost_x;
double _last_ghost_y;
ArdourCanvas::Rectangle* _step_edit_cursor;
Temporal::Beats _step_edit_cursor_width;
Temporal::Beats _step_edit_cursor_position;
NoteBase* _channel_selection_scoped_note;
MouseState _mouse_state;
int _pressed_button;
/** Currently selected NoteBase objects */
Selection _selection;
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;
/** Notes that should be selected when the model is redisplayed. */
std::set<Evoral::event_id_t> _pending_note_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;
NoteBase* find_canvas_note (boost::shared_ptr<NoteType>);
NoteBase* find_canvas_note (Evoral::event_id_t id);
Events::iterator _optimization_iterator;
boost::shared_ptr<PatchChange> find_canvas_patch_change (ARDOUR::MidiModel::PatchChangePtr p);
boost::shared_ptr<SysEx> find_canvas_sys_ex (ARDOUR::MidiModel::SysExPtr s);
void update_note (NoteBase*, bool update_ghost_regions = true);
void update_sustained (Note *, bool update_ghost_regions = true);
void update_hit (Hit *, bool update_ghost_regions = true);
void create_ghost_note (double, double, uint32_t state);
void update_ghost_note (double, double, uint32_t state);
MidiListEditor* _list_editor;
bool _no_sound_notes;
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<Temporal::Beats>::NoteOperator op, uint8_t val, int chan_mask = 0);
void display_patch_changes_on_channel (uint8_t, bool);
void connect_to_diskstream ();
void data_recorded (boost::weak_ptr<ARDOUR::MidiSource>);
/** Get grid type as beats, or default to 1 if not snapped to beats. */
Temporal::Beats get_grid_beats(samplepos_t pos) const;
void remove_ghost_note ();
void mouse_mode_changed ();
void enter_internal (uint32_t state);
void leave_internal ();
void hide_verbose_cursor ();
samplecnt_t _last_display_zoom;
double _last_event_x;
double _last_event_y;
bool _grabbed_keyboard;
bool _entered;
NoteBase* _entered_note;
bool _mouse_changed_selection;
Gtkmm2ext::Color _patch_change_outline;
Gtkmm2ext::Color _patch_change_fill;
Temporal::Beats snap_sample_to_grid_underneath (samplepos_t p, int32_t divisions, bool shift_snap) const;
PBD::ScopedConnection _mouse_mode_connection;
boost::shared_ptr<CursorContext> _press_cursor_ctx;
ARDOUR::ChannelMode get_channel_mode() const;
uint16_t get_selected_channels () const;
inline double contents_height() const { return (_height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2); }
inline double contents_note_range () const { return (double)(_current_range_max - _current_range_min + 1); }
inline double note_height() const { return contents_height() / contents_note_range(); }
double note_to_y (uint8_t note) const;
uint8_t y_to_note (double y) const;
};
#endif /* __gtk_ardour_midi_region_view_h__ */
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