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livetrax/gtk2_ardour/editor_drag.h
Robin Gareus 4050ca5633
Update GPL boilerplate and (C)
Copyright-holder and year information is extracted from git log.

git history begins in 2005. So (C) from 1998..2005 is lost. Also some
(C) assignment of commits where the committer didn't use --author.
2019-08-03 15:53:15 +02:00

1313 lines
33 KiB
C++

/*
* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2009-2015 David Robillard <d@drobilla.net>
* Copyright (C) 2009-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2013-2014 Colin Fletcher <colin.m.fletcher@googlemail.com>
* Copyright (C) 2013-2019 Robin Gareus <robin@gareus.org>
* Copyright (C) 2015-2017 Nick Mainsbridge <mainsbridge@gmail.com>
* Copyright (C) 2015-2018 Ben Loftis <ben@harrisonconsoles.com>
* Copyright (C) 2016 Tim Mayberry <mojofunk@gmail.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __gtk2_ardour_editor_drag_h_
#define __gtk2_ardour_editor_drag_h_
#include <list>
#include <gdk/gdk.h>
#include <stdint.h>
#include "ardour/tempo.h"
#include "ardour/types.h"
#include "canvas/types.h"
#include "cursor_context.h"
#include "editor_items.h"
#include "mouse_cursors.h"
#include "editing.h"
#include "track_selection.h"
namespace ARDOUR {
class Location;
class TempoSection;
}
namespace ArdourCanvas {
class Item;
class Line;
class Rectangle;
}
namespace PBD {
class StatefulDiffCommand;
}
class PatchChange;
class Editor;
class EditorCursor;
class TimeAxisView;
class MidiTimeAxisView;
class Drag;
class NoteBase;
class RegionView;
class TimeAxisView;
class RouteTimeAxisView;
class RegionSelection;
class MidiRegionView;
class MeterMarker;
class ArdourMarker;
class TempoMarker;
class ControlPoint;
class AudioRegionView;
class AutomationLine;
class AutomationTimeAxisView;
/** Class to manage current drags */
class DragManager
{
public:
DragManager (Editor* e);
~DragManager ();
bool motion_handler (GdkEvent *, bool);
void abort ();
void add (Drag *);
void set (Drag *, GdkEvent *, Gdk::Cursor* c = MouseCursors::invalid_cursor());
void start_grab (GdkEvent *, Gdk::Cursor* c = MouseCursors::invalid_cursor());
bool end_grab (GdkEvent *);
bool have_item (ArdourCanvas::Item *) const;
void mark_double_click ();
/** @return true if an end drag or abort is in progress */
bool ending () const {
return _ending;
}
bool active () const {
return !_drags.empty ();
}
/** @return current pointer x position in canvas coordinates */
double current_pointer_x () const {
return _current_pointer_x;
}
/** @return current pointer y position in canvas coordinates */
double current_pointer_y () const {
return _current_pointer_y;
}
/** @return current pointer sample */
ARDOUR::samplepos_t current_pointer_sample () const {
return _current_pointer_sample;
}
private:
Editor* _editor;
std::list<Drag*> _drags;
bool _ending; ///< true if end_grab or abort is in progress, otherwise false
double _current_pointer_x; ///< canvas-coordinate space x of the current pointer
double _current_pointer_y; ///< canvas-coordinate space y of the current pointer
ARDOUR::samplepos_t _current_pointer_sample; ///< sample that the pointer is now at
bool _old_follow_playhead; ///< state of Editor::follow_playhead() before the drags started
};
/** Abstract base class for dragging of things within the editor */
class Drag
{
public:
Drag (Editor *, ArdourCanvas::Item *, bool trackview_only = true);
virtual ~Drag () {}
void set_manager (DragManager* m) {
_drags = m;
}
/** @return the canvas item being dragged */
ArdourCanvas::Item* item () const {
return _item;
}
void swap_grab (ArdourCanvas::Item *, Gdk::Cursor *, uint32_t);
bool motion_handler (GdkEvent*, bool);
void abort ();
ARDOUR::MusicSample adjusted_sample (ARDOUR::samplepos_t, GdkEvent const *, bool snap = true) const;
ARDOUR::samplepos_t adjusted_current_sample (GdkEvent const *, bool snap = true) const;
bool was_double_click() const { return _was_double_click; }
void set_double_click (bool yn) { _was_double_click = yn; }
/** Called to start a grab of an item.
* @param e Event that caused the grab to start.
* @param c Cursor to use, or 0.
*/
virtual void start_grab (GdkEvent* e, Gdk::Cursor* c = 0);
virtual bool end_grab (GdkEvent *);
/** Called when a drag motion has occurred.
* @param e Event describing the motion.
* @param f true if this is the first movement, otherwise false.
*/
virtual void motion (GdkEvent* e, bool f) = 0;
/** Called when a drag has finished.
* @param e Event describing the finish.
* @param m true if some movement occurred, otherwise false.
*/
virtual void finished (GdkEvent* e, bool m) = 0;
/** Called to abort a drag and return things to how
* they were before it started.
* @param m true if some movement occurred, otherwise false.
*/
virtual void aborted (bool m) = 0;
/** @param m Mouse mode.
* @return true if this drag should happen in this mouse mode.
*/
virtual bool active (Editing::MouseMode m) {
return true;
}
/** @return minimum number of samples (in x) and pixels (in y) that should be considered a movement */
virtual std::pair<ARDOUR::samplecnt_t, int> move_threshold () const {
return std::make_pair (1, 1);
}
virtual bool allow_vertical_autoscroll () const {
return true;
}
/** @return true if x movement matters to this drag */
virtual bool x_movement_matters () const {
return true;
}
/** @return true if y movement matters to this drag */
virtual bool y_movement_matters () const {
return true;
}
bool initially_vertical() const {
return _initially_vertical;
}
/** Set up the _pointer_sample_offset */
virtual void setup_pointer_sample_offset () {
_pointer_sample_offset = 0;
}
protected:
double grab_x () const {
return _grab_x;
}
double grab_y () const {
return _grab_y;
}
ARDOUR::samplepos_t raw_grab_sample () const {
return _raw_grab_sample;
}
ARDOUR::samplepos_t grab_sample () const {
return _grab_sample;
}
double last_pointer_x () const {
return _last_pointer_x;
}
double last_pointer_y () const {
return _last_pointer_y;
}
ARDOUR::samplepos_t last_pointer_sample () const {
return _last_pointer_sample;
}
ARDOUR::sampleoffset_t snap_delta (guint const) const;
double snap_delta_music (guint const) const;
double current_pointer_x () const;
double current_pointer_y () const;
/* sets snap delta from unsnapped pos */
void setup_snap_delta (ARDOUR::MusicSample pos);
boost::shared_ptr<ARDOUR::Region> add_midi_region (MidiTimeAxisView*, bool commit);
void show_verbose_cursor_time (samplepos_t);
void show_verbose_cursor_duration (samplepos_t, samplepos_t, double xoffset = 0);
void show_verbose_cursor_text (std::string const &);
Editor* _editor; ///< our editor
DragManager* _drags;
ArdourCanvas::Item* _item; ///< our item
/** Offset from the mouse's position for the drag to the start of the thing that is being dragged */
ARDOUR::samplecnt_t _pointer_sample_offset;
bool _x_constrained; ///< true if x motion is constrained, otherwise false
bool _y_constrained; ///< true if y motion is constrained, otherwise false
bool _was_rolling; ///< true if the session was rolling before the drag started, otherwise false
private:
bool _trackview_only; ///< true if pointer y value should always be relative to the top of the trackview group
bool _move_threshold_passed; ///< true if the move threshold has been passed, otherwise false
bool _starting_point_passed; ///< true if we called move () with first_move flag, otherwise false
bool _initially_vertical; ///< true if after move threshold is passed we appear to be moving vertically; undefined before that
bool _was_double_click; ///< true if drag initiated by a double click event
double _grab_x; ///< trackview x of the grab start position
double _grab_y; ///< y of the grab start position, possibly adjusted if _trackview_only is true
double _last_pointer_x; ///< trackview x of the pointer last time a motion occurred
double _last_pointer_y; ///< trackview y of the pointer last time a motion occurred
ARDOUR::samplepos_t _raw_grab_sample; ///< unsnapped sample that the mouse was at when start_grab was called, or 0
ARDOUR::samplepos_t _grab_sample; ///< adjusted_sample that the mouse was at when start_grab was called, or 0
ARDOUR::samplepos_t _last_pointer_sample; ///< adjusted_sample the last time a motion occurred
/* difference between some key position's snapped and unsnapped
* samplepos. used for relative snap.
*/
samplepos_t _snap_delta;
double _snap_delta_music;
CursorContext::Handle _cursor_ctx; ///< cursor change context
bool _constraint_pressed; ///< if the keyboard indicated constraint modifier was pressed on start_grab()
};
class RegionDrag;
/** Container for details about a region being dragged */
class DraggingView
{
public:
DraggingView (RegionView *, RegionDrag *, TimeAxisView* original_tav);
RegionView* view; ///< the view
/** index into RegionDrag::_time_axis_views of the view that this region is currently being displayed on,
* or -1 if it is not visible.
*/
int time_axis_view;
/** layer that this region is currently being displayed on. This is a double
rather than a layer_t as we use fractional layers during drags to allow the user
to indicate a new layer to put a region on.
*/
double layer;
double initial_y; ///< the initial y position of the view before any reparenting
samplepos_t initial_position; ///< initial position of the region
samplepos_t initial_end; ///< initial end position of the region
samplepos_t anchored_fade_length; ///< fade_length when anchored during drag
boost::shared_ptr<ARDOUR::Playlist> initial_playlist;
TimeAxisView* initial_time_axis_view;
};
/** Abstract base class for drags that involve region(s) */
class RegionDrag : public Drag, public sigc::trackable
{
public:
RegionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
virtual ~RegionDrag () {}
protected:
RegionView* _primary; ///< the view that was clicked on (or whatever) to start the drag
std::list<DraggingView> _views; ///< information about all views that are being dragged
/** a list of the non-hidden TimeAxisViews sorted by editor order key */
std::vector<TimeAxisView*> _time_axis_views;
int find_time_axis_view (TimeAxisView *) const;
int apply_track_delta (const int start, const int delta, const int skip, const bool distance_only = false) const;
int _visible_y_low;
int _visible_y_high;
uint32_t _ntracks;
friend class DraggingView;
private:
void region_going_away (RegionView *);
PBD::ScopedConnection death_connection;
};
/** Drags involving region motion from somewhere */
class RegionMotionDrag : public RegionDrag
{
public:
RegionMotionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool);
virtual ~RegionMotionDrag () {}
virtual void start_grab (GdkEvent *, Gdk::Cursor *);
virtual void motion (GdkEvent *, bool);
virtual void finished (GdkEvent *, bool);
virtual void aborted (bool);
/** @return true if the regions being `moved' came from somewhere on the canvas;
* false if they came from outside (e.g. from the region list).
*/
virtual bool regions_came_from_canvas () const = 0;
protected:
double compute_x_delta (GdkEvent const *, ARDOUR::MusicSample *);
virtual bool y_movement_allowed (int, double, int skip_invisible = 0) const;
bool _brushing;
bool _ignore_video_lock;
ARDOUR::MusicSample _last_position; ///< last position of the thing being dragged
double _total_x_delta;
int _last_pointer_time_axis_view;
double _last_pointer_layer;
private:
uint32_t _ndropzone;
uint32_t _pdropzone;
uint32_t _ddropzone;
};
/** Drags to move (or copy) regions that are already shown in the GUI to
* somewhere different.
*/
class RegionMoveDrag : public RegionMotionDrag
{
public:
RegionMoveDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool, bool);
virtual ~RegionMoveDrag () {}
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool regions_came_from_canvas () const {
return true;
}
std::pair<ARDOUR::samplecnt_t, int> move_threshold () const {
return std::make_pair (4, 4);
}
void setup_pointer_sample_offset ();
protected:
typedef std::set<boost::shared_ptr<ARDOUR::Playlist> > PlaylistSet;
void add_stateful_diff_commands_for_playlists (PlaylistSet const &);
private:
void finished_no_copy (
bool const,
bool const,
ARDOUR::MusicSample,
int32_t const ev_state
);
void finished_copy (
bool const,
bool const,
ARDOUR::MusicSample,
int32_t const ev_state
);
RegionView* insert_region_into_playlist (
boost::shared_ptr<ARDOUR::Region>,
RouteTimeAxisView*,
ARDOUR::layer_t,
ARDOUR::MusicSample,
double quarter_note,
PlaylistSet&,
bool for_music = false
);
void remove_region_from_playlist (
boost::shared_ptr<ARDOUR::Region>,
boost::shared_ptr<ARDOUR::Playlist>,
PlaylistSet& modified_playlists
);
void collect_new_region_view (RegionView *);
RouteTimeAxisView* create_destination_time_axis (boost::shared_ptr<ARDOUR::Region>, TimeAxisView* original);
bool _copy;
RegionView* _new_region_view;
};
/** Drag to insert a region from somewhere */
class RegionInsertDrag : public RegionMotionDrag
{
public:
RegionInsertDrag (Editor *, boost::shared_ptr<ARDOUR::Region>, RouteTimeAxisView*, ARDOUR::samplepos_t);
void finished (GdkEvent *, bool);
void aborted (bool);
bool regions_came_from_canvas () const {
return false;
}
};
/** Region drag in splice mode */
class RegionSpliceDrag : public RegionMoveDrag
{
public:
RegionSpliceDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
};
/** Region drag in ripple mode */
class RegionRippleDrag : public RegionMoveDrag
{
public:
RegionRippleDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
~RegionRippleDrag () { delete exclude; }
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
protected:
bool y_movement_allowed (int delta_track, double delta_layer, int skip_invisible = 0) const;
private:
TimeAxisView *prev_tav; // where regions were most recently dragged from
TimeAxisView *orig_tav; // where drag started
ARDOUR::samplecnt_t prev_amount;
ARDOUR::samplepos_t prev_position;
ARDOUR::samplecnt_t selection_length;
bool allow_moves_across_tracks; // only if all selected regions are on one track
ARDOUR::RegionList *exclude;
void add_all_after_to_views (TimeAxisView *tav, ARDOUR::samplepos_t where, const RegionSelection &exclude, bool drag_in_progress);
void remove_unselected_from_views (ARDOUR::samplecnt_t amount, bool move_regions);
};
/** "Drag" to cut a region (action only on button release) */
class RegionCutDrag : public Drag
{
public:
RegionCutDrag (Editor*, ArdourCanvas::Item*, samplepos_t);
~RegionCutDrag ();
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent*, bool);
void finished (GdkEvent*, bool);
void aborted (bool);
private:
};
/** Drags to create regions */
class RegionCreateDrag : public Drag
{
public:
RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
private:
MidiTimeAxisView* _view;
boost::shared_ptr<ARDOUR::Region> _region;
};
/** Drags to resize MIDI notes */
class NoteResizeDrag : public Drag
{
public:
NoteResizeDrag (Editor *, ArdourCanvas::Item *);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
private:
MidiRegionView* region;
bool relative;
bool at_front;
bool _was_selected;
double _snap_delta;
};
/** Drags to move MIDI notes */
class NoteDrag : public Drag
{
public:
NoteDrag (Editor*, ArdourCanvas::Item*);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
void setup_pointer_sample_offset ();
private:
double total_dx (GdkEvent * event) const; // total movement in quarter notes
int8_t total_dy () const;
MidiRegionView* _region;
NoteBase* _primary;
double _cumulative_dx;
double _cumulative_dy;
double _earliest; // earliest quarter note in note selection
bool _was_selected;
double _note_height;
bool _copy;
};
class NoteCreateDrag : public Drag
{
public:
NoteCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *);
~NoteCreateDrag ();
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool active (Editing::MouseMode mode) {
return mode == Editing::MouseDraw || mode == Editing::MouseContent;
}
bool y_movement_matters () const {
return false;
}
private:
double y_to_region (double) const;
ARDOUR::samplecnt_t grid_samples (samplepos_t) const;
/** @return minimum number of samples (in x) and pixels (in y) that should be considered a movement */
virtual std::pair<ARDOUR::samplecnt_t, int> move_threshold () const {
return std::make_pair (0, 0);
}
MidiRegionView* _region_view;
ArdourCanvas::Rectangle* _drag_rect;
samplepos_t _note[2];
};
class HitCreateDrag : public Drag
{
public:
HitCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *);
~HitCreateDrag ();
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool active (Editing::MouseMode mode) {
return mode == Editing::MouseDraw || mode == Editing::MouseContent;
}
bool y_movement_matters () const {
return false;
}
private:
double y_to_region (double) const;
ARDOUR::samplecnt_t grid_samples (samplepos_t) const;
/** @return minimum number of samples (in x) and pixels (in y) that should be considered a movement */
virtual std::pair<ARDOUR::samplecnt_t, int> move_threshold () const {
return std::make_pair (0, 0);
}
MidiRegionView* _region_view;
samplepos_t _last_pos;
double _y;
};
/** Drag to move MIDI patch changes */
class PatchChangeDrag : public Drag
{
public:
PatchChangeDrag (Editor *, PatchChange *, MidiRegionView *);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool y_movement_matters () const {
return false;
}
void setup_pointer_sample_offset ();
private:
MidiRegionView* _region_view;
PatchChange* _patch_change;
double _cumulative_dx;
};
/** Container for details about audio regions being dragged along with video */
class AVDraggingView
{
public:
AVDraggingView (RegionView *);
RegionView* view; ///< the view
samplepos_t initial_position; ///< initial position of the region
};
/** Drag of video offset */
class VideoTimeLineDrag : public Drag
{
public:
VideoTimeLineDrag (Editor *e, ArdourCanvas::Item *i);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
bool y_movement_matters () const {
return false;
}
bool allow_vertical_autoscroll () const {
return false;
}
void aborted (bool);
protected:
std::list<AVDraggingView> _views; ///< information about all audio that are being dragged along
private:
ARDOUR::sampleoffset_t _startdrag_video_offset;
ARDOUR::sampleoffset_t _max_backwards_drag;
bool _stuck;
};
/** Drag to trim region(s) */
class TrimDrag : public RegionDrag
{
public:
enum Operation {
StartTrim,
EndTrim,
ContentsTrim,
};
TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &, bool preserve_fade_anchor = false);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool y_movement_matters () const {
return false;
}
void setup_pointer_sample_offset ();
private:
Operation _operation;
bool _preserve_fade_anchor;
bool _jump_position_when_done;
};
/** Meter marker drag */
class MeterMarkerDrag : public Drag
{
public:
MeterMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return false;
}
void setup_pointer_sample_offset ();
private:
MeterMarker* _marker;
ARDOUR::MeterSection* _real_section;
bool _copy;
Editing::GridType _old_grid_type;
Editing::SnapMode _old_snap_mode;
XMLNode* before_state;
};
/** Tempo marker drag */
class TempoMarkerDrag : public Drag
{
public:
TempoMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return true;
}
void setup_pointer_sample_offset ();
private:
TempoMarker* _marker;
ARDOUR::TempoSection* _real_section;
bool _copy;
bool _movable;
ARDOUR::Tempo _grab_bpm;
double _grab_qn;
XMLNode* _before_state;
};
/** BBT Ruler drag */
class BBTRulerDrag : public Drag
{
public:
BBTRulerDrag (Editor *, ArdourCanvas::Item *);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return false;
}
void setup_pointer_sample_offset ();
private:
double _grab_qn;
ARDOUR::TempoSection* _tempo;
XMLNode* _before_state;
bool _drag_valid;
};
/** tempo curve twist drag */
class TempoTwistDrag : public Drag
{
public:
TempoTwistDrag (Editor *, ArdourCanvas::Item *);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return true;
}
void setup_pointer_sample_offset ();
private:
double _grab_qn;
ARDOUR::Tempo _grab_tempo;
ARDOUR::TempoSection* _tempo;
ARDOUR::TempoSection* _next_tempo;
bool _drag_valid;
XMLNode* _before_state;
};
/** tempo curve twist drag */
class TempoEndDrag : public Drag
{
public:
TempoEndDrag (Editor *, ArdourCanvas::Item *);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return true;
}
void setup_pointer_sample_offset ();
private:
double _grab_qn;
ARDOUR::TempoSection* _tempo;
XMLNode* _before_state;
bool _drag_valid;
};
/** Drag of the playhead cursor */
class CursorDrag : public Drag
{
public:
CursorDrag (Editor *, EditorCursor&, bool);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return true;
}
private:
void fake_locate (samplepos_t);
EditorCursor& _cursor;
bool _stop; ///< true to stop the transport on starting the drag, otherwise false
double _grab_zoom; ///< editor samples per unit when our grab started
//used for zooming
int _last_mx;
int _last_my;
int _last_dx;
int _last_y_delta;
};
/** Region fade-in drag */
class FadeInDrag : public RegionDrag
{
public:
FadeInDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool y_movement_matters () const {
return false;
}
void setup_pointer_sample_offset ();
};
/** Region fade-out drag */
class FadeOutDrag : public RegionDrag
{
public:
FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool y_movement_matters () const {
return false;
}
void setup_pointer_sample_offset ();
};
/** Marker drag */
class MarkerDrag : public Drag
{
public:
MarkerDrag (Editor *, ArdourCanvas::Item *);
~MarkerDrag ();
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return false;
}
void setup_pointer_sample_offset ();
private:
void update_item (ARDOUR::Location *);
ArdourMarker* _marker; ///< marker being dragged
bool _selection_changed;
struct CopiedLocationMarkerInfo {
ARDOUR::Location* location;
std::vector<ArdourMarker*> markers;
bool move_both;
CopiedLocationMarkerInfo (ARDOUR::Location* l, ArdourMarker* m);
};
typedef std::list<CopiedLocationMarkerInfo> CopiedLocationInfo;
CopiedLocationInfo _copied_locations;
ArdourCanvas::Points _points;
};
/** Control point drag */
class ControlPointDrag : public Drag
{
public:
ControlPointDrag (Editor *, ArdourCanvas::Item *);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool active (Editing::MouseMode m);
private:
ControlPoint* _point;
double _fixed_grab_x;
double _fixed_grab_y;
double _cumulative_x_drag;
double _cumulative_y_drag;
bool _pushing;
uint32_t _final_index;
static double _zero_gain_fraction;
};
/** Gain or automation line drag */
class LineDrag : public Drag
{
public:
LineDrag (Editor *e, ArdourCanvas::Item *i);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
private:
AutomationLine* _line;
double _fixed_grab_x;
double _fixed_grab_y;
double _cumulative_y_drag;
uint32_t _before;
uint32_t _after;
};
/** Transient feature line drags*/
class FeatureLineDrag : public Drag
{
public:
FeatureLineDrag (Editor *e, ArdourCanvas::Item *i);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
private:
ArdourCanvas::Line* _line;
AudioRegionView* _arv;
double _region_view_grab_x;
double _cumulative_x_drag;
float _before;
uint32_t _max_x;
};
/** Dragging of a rubberband rectangle for selecting things */
class RubberbandSelectDrag : public Drag
{
public:
RubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
std::pair<ARDOUR::samplecnt_t, int> move_threshold () const {
return std::make_pair (8, 1);
}
void do_select_things (GdkEvent *, bool);
/** Select some things within a rectangle.
* @param button_state The button state from the GdkEvent.
* @param x1 The left-hand side of the rectangle in session samples.
* @param x2 The right-hand side of the rectangle in session samples.
* @param y1 The top of the rectangle in trackview coordinates.
* @param y2 The bottom of the rectangle in trackview coordinates.
* @param drag_in_progress true if the drag is currently happening.
*/
virtual void select_things (int button_state, samplepos_t x1, samplepos_t x2, double y1, double y2, bool drag_in_progress) = 0;
virtual void deselect_things () = 0;
protected:
bool _vertical_only;
};
/** A general editor RubberbandSelectDrag (for regions, automation points etc.) */
class EditorRubberbandSelectDrag : public RubberbandSelectDrag
{
public:
EditorRubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
void select_things (int, samplepos_t, samplepos_t, double, double, bool);
void deselect_things ();
};
/** A RubberbandSelectDrag for selecting MIDI notes */
class MidiRubberbandSelectDrag : public RubberbandSelectDrag
{
public:
MidiRubberbandSelectDrag (Editor *, MidiRegionView *);
void select_things (int, samplepos_t, samplepos_t, double, double, bool);
void deselect_things ();
private:
MidiRegionView* _region_view;
};
/** A RubberbandSelectDrag for selecting MIDI notes but with no horizonal component */
class MidiVerticalSelectDrag : public RubberbandSelectDrag
{
public:
MidiVerticalSelectDrag (Editor *, MidiRegionView *);
void select_things (int, samplepos_t, samplepos_t, double, double, bool);
void deselect_things ();
private:
MidiRegionView* _region_view;
};
/** Region drag in time-FX mode */
class TimeFXDrag : public RegionDrag
{
public:
TimeFXDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
};
/** Scrub drag in audition mode */
class ScrubDrag : public Drag
{
public:
ScrubDrag (Editor *, ArdourCanvas::Item *);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
};
/** Drag in range select mode */
class SelectionDrag : public Drag
{
public:
enum Operation {
CreateSelection,
SelectionStartTrim,
SelectionEndTrim,
SelectionMove,
SelectionExtend
};
SelectionDrag (Editor *, ArdourCanvas::Item *, Operation);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
void setup_pointer_sample_offset ();
private:
Operation _operation;
bool _add;
TrackSelection _track_selection_at_start;
bool _time_selection_at_start;
samplepos_t start_at_start;
samplepos_t end_at_start;
};
/** Range marker drag */
class RangeMarkerBarDrag : public Drag
{
public:
enum Operation {
CreateSkipMarker,
CreateRangeMarker,
CreateTransportMarker,
CreateCDMarker
};
RangeMarkerBarDrag (Editor *, ArdourCanvas::Item *, Operation);
~RangeMarkerBarDrag ();
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return false;
}
private:
void update_item (ARDOUR::Location *);
Operation _operation;
ArdourCanvas::Rectangle* _drag_rect;
bool _copy;
};
/** Drag of rectangle to set zoom */
class MouseZoomDrag : public Drag
{
public:
MouseZoomDrag (Editor *, ArdourCanvas::Item *);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
std::pair<ARDOUR::samplecnt_t, int> move_threshold () const {
return std::make_pair (4, 4);
}
private:
bool _zoom_out;
};
/** Drag of a range of automation data (either on an automation track or region gain),
* changing value but not position.
*/
class AutomationRangeDrag : public Drag
{
public:
AutomationRangeDrag (Editor *, AutomationTimeAxisView *, std::list<ARDOUR::AudioRange> const &);
AutomationRangeDrag (Editor *, std::list<RegionView*> const &, std::list<ARDOUR::AudioRange> const &, double y_origin, double y_height);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
bool x_movement_matters () const {
return false;
}
private:
void setup (std::list<boost::shared_ptr<AutomationLine> > const &);
double y_fraction (double global_y_position) const;
double value (boost::shared_ptr<ARDOUR::AutomationList> list, double x) const;
std::list<ARDOUR::AudioRange> _ranges;
/** A line that is part of the drag */
struct Line {
boost::shared_ptr<AutomationLine> line; ///< the line
std::list<ControlPoint*> points; ///< points to drag on the line
std::pair<ARDOUR::samplepos_t, ARDOUR::samplepos_t> range; ///< the range of all points on the line, in session samples
XMLNode* state; ///< the XML state node before the drag
};
std::list<Line> _lines;
double _y_origin;
double _y_height;
bool _nothing_to_drag;
bool _integral;
};
/** Drag of one edge of an xfade
*/
class CrossfadeEdgeDrag : public Drag
{
public:
CrossfadeEdgeDrag (Editor*, AudioRegionView*, ArdourCanvas::Item*, bool start);
void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
void motion (GdkEvent*, bool);
void finished (GdkEvent*, bool);
void aborted (bool);
bool y_movement_matters () const {
return false;
}
virtual std::pair<ARDOUR::samplecnt_t, int> move_threshold () const {
return std::make_pair (4, 4);
}
private:
AudioRegionView* arv;
bool start;
};
#endif /* __gtk2_ardour_editor_drag_h_ */