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livetrax/gtk2_ardour/editor_drag.h
Colin Fletcher 72850d456f implement time-stretch from left of region
Make click & drag in the left-hand half of a region with the Timestretch
tool stretch the region on its left, leaving the end position of the new
time-stretched region in the same place as the end of the original.
2023-06-09 17:57:52 +01:00

1550 lines
39 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 <vector>
#include <gdk/gdk.h>
#include <stdint.h>
#include "ardour/tempo.h"
#include "ardour/types.h"
#include "canvas/types.h"
#include "gtkmm2ext/bindings.h"
#include "cursor_context.h"
#include "editor_items.h"
#include "mouse_cursors.h"
#include "editing.h"
#include "track_selection.h"
#include "region_view.h"
namespace ARDOUR {
class Location;
class Region;
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 TimeAxisView;
class RouteTimeAxisView;
class RegionSelection;
class MidiRegionView;
class MeterMarker;
class ArdourMarker;
class TempoMarker;
class TempoCurve;
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_time.samples();
}
/** @return current pointer time */
Temporal::timepos_t current_pointer_time () const {
return _current_pointer_time;
}
/** return drag-motion displays video-frame of drag-location */
bool preview_video () const;
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
Temporal::timepos_t _current_pointer_time; ///< time 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 *, Temporal::TimeDomain td, bool trackview_only = true, bool hide_snapped_cursor = true);
virtual ~Drag () {}
void set_manager (DragManager* m) {
_drags = m;
}
/** @return the canvas item being dragged */
ArdourCanvas::Item* item () const {
return _item;
}
Temporal::TimeDomain time_domain() const { return _time_domain; }
void set_time_domain (Temporal::TimeDomain);
void swap_grab (ArdourCanvas::Item *, Gdk::Cursor *, uint32_t);
bool motion_handler (GdkEvent*, bool);
void abort ();
Temporal::timepos_t adjusted_time (Temporal::timepos_t const &, GdkEvent const *, bool snap = true) const;
Temporal::timepos_t adjusted_current_time (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; }
void set_grab_button_anyway (GdkEvent*);
/** 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;
}
bool preview_video () const {
return _preview_video;
}
/** @return minimum number of samples (in x) and pixels (in y) that should be considered a movement */
std::pair<Temporal::timecnt_t,int> move_threshold () const {
return std::make_pair (Temporal::timecnt_t (1, Temporal::AudioTime), 1);
}
virtual bool allow_vertical_autoscroll () const {
return true;
}
virtual bool allow_horizontal_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_offset */
virtual void setup_pointer_offset () {
_pointer_offset = Temporal::timecnt_t();
}
/** Set up the _video_offset - relative to _current_pointer_time */
virtual void setup_video_offset () {
/* video offset is always in audio time */
_video_offset = Temporal::timecnt_t (Temporal::AudioTime);
_preview_video = false;
}
int grab_button() const { return _grab_button; }
protected:
double grab_x () const {
return _grab_x;
}
double grab_y () const {
return _grab_y;
}
Temporal::timepos_t pixel_to_time (double x) const;
Temporal::timepos_t raw_grab_time () const {
return _raw_grab_time;
}
ARDOUR::samplepos_t grab_sample () const {
return _grab_time.samples();
}
Temporal::timepos_t grab_time () const {
return _grab_time;
}
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_time.samples();
}
Temporal::timepos_t last_pointer_time () const {
return _last_pointer_time;
}
Temporal::timecnt_t snap_delta (guint const) const;
double current_pointer_x () const;
double current_pointer_y () const;
/* sets snap delta from unsnapped pos */
void setup_snap_delta (Temporal::timepos_t const & pos);
std::shared_ptr<ARDOUR::Region> add_midi_region (MidiTimeAxisView*, bool commit);
void show_verbose_cursor_time (Temporal::timepos_t const &);
void show_verbose_cursor_duration (Temporal::timepos_t const & , Temporal::timepos_t const & , double xoffset = 0);
void show_verbose_cursor_text (std::string const &);
void show_view_preview (Temporal::timepos_t 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 */
Temporal::timecnt_t _pointer_offset;
Temporal::timecnt_t _video_offset;
bool _preview_video;
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
ARDOUR::timepos_t _earliest_time_limit; ///< time we cannot drag before (defaults to 0, indicating no such limit)
private:
bool _trackview_only; ///< true if pointer y value should always be relative to the top of the trackview group
bool _hide_snapped_cursor; ///< set true of ::motion does not call `set_snapped_cursor_position`
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
Temporal::timepos_t _raw_grab_time; ///< unsnapped time that the mouse was at when start_grab was called, or 0
Temporal::timepos_t _grab_time; ///< adjusted_time that the mouse was at when start_grab was called, or 0
Temporal::timepos_t _last_pointer_time; ///< adjusted_time the last time a motion occurred
Temporal::TimeDomain _time_domain;
/* difference between some key position's snapped and unsnapped
* samplepos. used for relative snap.
*/
Temporal::timecnt_t _snap_delta;
CursorContext::Handle _cursor_ctx; ///< cursor change context
bool _constraint_pressed; ///< if the keyboard indicated constraint modifier was pressed on start_grab()
int _grab_button;
Gtkmm2ext::Bindings::DragsBlockBindings binding_blocker;
};
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
Temporal::timepos_t initial_position; ///< initial position of the region
Temporal::timepos_t initial_end; ///< initial end position of the region
samplepos_t anchored_fade_length; ///< fade_length when anchored during drag
std::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 &, Temporal::TimeDomain, bool hide_snapped_cursor = true);
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;
void setup_video_offset ();
friend class DraggingView;
protected:
void add_stateful_diff_commands_for_playlists (ARDOUR::PlaylistSet const &);
private:
void region_going_away (RegionView *);
PBD::ScopedConnection death_connection;
};
/** Drag the Contents rather than the bounds of a region (i.e. Slip) */
class RegionSlipContentsDrag : public RegionDrag
{
public:
RegionSlipContentsDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, Temporal::TimeDomain td);
virtual ~RegionSlipContentsDrag () {}
virtual void start_grab (GdkEvent *, Gdk::Cursor *);
virtual void motion (GdkEvent *, bool);
virtual void finished (GdkEvent *, bool);
virtual void aborted (bool);
};
/** Brush on a region to repeat it */
class RegionBrushDrag : public RegionDrag
{
public:
RegionBrushDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, Temporal::TimeDomain td);
virtual ~RegionBrushDrag () {}
virtual void start_grab (GdkEvent *, Gdk::Cursor *);
virtual void motion (GdkEvent *, bool);
virtual void finished (GdkEvent *, bool);
virtual void aborted (bool);
private:
typedef std::set<Temporal::timepos_t> TimePositionSet;
TimePositionSet _already_pasted;
};
/** Drags involving region motion from somewhere */
class RegionMotionDrag : public RegionDrag
{
public:
RegionMotionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, Temporal::TimeDomain td);
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 *, Temporal::timepos_t &);
virtual bool y_movement_allowed (int, double, int skip_invisible = 0) const;
void collect_ripple_views ();
bool _ignore_video_lock;
Temporal::timepos_t _last_position; ///< last position of the thing being dragged
double _total_x_delta;
int _last_pointer_time_axis_view;
double _last_pointer_layer;
std::vector<ArdourMarker*> ripple_markers;
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, Temporal::TimeDomain);
virtual ~RegionMoveDrag () {}
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
void clear_draggingview_list ();
bool regions_came_from_canvas () const {
return true;
}
std::pair<Temporal::timecnt_t,int> move_threshold () const {
return std::make_pair (Temporal::timecnt_t (4, Temporal::AudioTime), 4);
}
void setup_pointer_offset ();
private:
void finished_no_copy (
bool const,
bool const,
Temporal::timepos_t const &,
int32_t const ev_state
);
void finished_copy (
bool const,
bool const,
Temporal::timepos_t const &,
int32_t const ev_state
);
RegionView* insert_region_into_playlist (
std::shared_ptr<ARDOUR::Region>,
RouteTimeAxisView*,
ARDOUR::layer_t,
Temporal::timepos_t const &,
ARDOUR::PlaylistSet&
);
void remove_region_from_playlist (
std::shared_ptr<ARDOUR::Region>,
std::shared_ptr<ARDOUR::Playlist>,
ARDOUR::PlaylistSet& modified_playlists
);
void collect_new_region_view (RegionView *);
RouteTimeAxisView* create_destination_time_axis (std::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 *, std::shared_ptr<ARDOUR::Region>, RouteTimeAxisView*, Temporal::timepos_t const &, Temporal::TimeDomain);
void finished (GdkEvent *, bool);
void aborted (bool);
bool regions_came_from_canvas () const {
return false;
}
};
/** "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;
std::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);
bool allow_vertical_autoscroll () const {
return false;
}
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_offset ();
bool allow_vertical_autoscroll () const {
return false;
}
private:
Temporal::timecnt_t total_dx (GdkEvent * event) const; // total movement in quarter notes
int8_t total_dy () const;
MidiRegionView* _region;
NoteBase* _primary;
Temporal::timecnt_t _cumulative_dx;
double _cumulative_dy;
Temporal::timepos_t _earliest; // earliest 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 allow_vertical_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return false;
}
private:
double y_to_region (double) const;
Temporal::Beats round_to_grid (Temporal::timepos_t const & pos, GdkEvent const * event) const;
/** @return minimum number of samples (in x) and pixels (in y) that should be considered a movement */
std::pair<Temporal::timecnt_t,int> move_threshold () const {
return std::make_pair (Temporal::timecnt_t (0, Temporal::AudioTime), 0);
}
MidiRegionView* _region_view;
ArdourCanvas::Rectangle* _drag_rect;
Temporal::timepos_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;
/** @return minimum number of samples (in x) and pixels (in y) that should be considered a movement */
std::pair<Temporal::timecnt_t,int> move_threshold () const {
return std::make_pair (Temporal::timecnt_t::zero (Temporal::AudioTime), 0);
}
MidiRegionView* _region_view;
Temporal::timepos_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;
}
bool allow_vertical_autoscroll () const {
return false;
}
void setup_pointer_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
};
TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &, Temporal::TimeDomain td, 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;
}
bool allow_vertical_autoscroll () const {
return false;
}
void setup_pointer_offset ();
private:
Operation _operation;
bool _preserve_fade_anchor;
bool _jump_position_when_done;
std::vector<RegionView::DisplaySuspender> suspenders;
};
/** 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_offset ();
private:
MeterMarker* _marker;
Temporal::TempoMap::WritableSharedPtr map;
Temporal::superclock_t initial_sclock;
bool _movable;
Editing::GridType _old_grid_type;
Editing::SnapMode _old_snap_mode;
XMLNode* before_state;
};
/** Tempo curve drag */
class TempoCurveDrag : public Drag
{
public:
TempoCurveDrag (Editor*, ArdourCanvas::Item*);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
private:
Temporal::TempoPoint* point;
double initial_bpm;
Temporal::TempoMap::WritableSharedPtr map;
XMLNode* _before_state;
};
/** Tempo marker drag */
class TempoMarkerDrag : public Drag
{
public:
TempoMarkerDrag (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_offset ();
private:
TempoMarker* _marker;
Temporal::TempoPoint const * _real_section;
Temporal::TempoMap::WritableSharedPtr map;
bool _movable;
double _grab_bpm;
Temporal::Beats _grab_qn;
XMLNode* _before_state;
};
/** Tempo marker drag */
class BBTMarkerDrag : public Drag
{
public:
BBTMarkerDrag (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_offset ();
private:
BBTMarker* _marker;
Temporal::MusicTimePoint const * _point;
Temporal::TempoMap::WritableSharedPtr map;
XMLNode* _before_state;
};
class MappingEndDrag : public Drag
{
public:
MappingEndDrag (Editor *, ArdourCanvas::Item *, Temporal::TempoMap::WritableSharedPtr&, Temporal::TempoPoint&, Temporal::TempoPoint& after, XMLNode& before_state);
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 allow_horizontal_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return false;
}
void setup_pointer_offset ();
private:
Temporal::TempoPoint& _tempo;
Temporal::TempoPoint& _after;
double _grab_bpm;
Temporal::TempoMap::WritableSharedPtr map;
XMLNode* _before_state;
bool _drag_valid;
};
class MappingTwistDrag : public Drag
{
public:
MappingTwistDrag (Editor *, ArdourCanvas::Item *, Temporal::TempoMap::WritableSharedPtr&,
Temporal::TempoPoint& prev,
Temporal::TempoPoint& focus,
Temporal::TempoPoint& next,
XMLNode&,
bool ramped);
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 allow_horizontal_autoscroll () const {
return false;
}
bool y_movement_matters () const {
return false;
}
void setup_pointer_offset ();
private:
Temporal::TempoPoint& prev;
Temporal::TempoPoint& focus;
Temporal::TempoPoint& next;
Temporal::TempoMap::WritableSharedPtr map;
double direction;
double delta;
double initial_focus_npm;
double initial_pre_npm;
XMLNode* _before_state;
bool _drag_valid;
bool _do_ramp;
};
/** 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_offset ();
private:
Temporal::Beats _grab_qn;
Temporal::TempoPoint* _tempo;
Temporal::TempoPoint const * _next_tempo;
Temporal::TempoMap::WritableSharedPtr map;
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_offset ();
private:
Temporal::Beats _grab_qn;
Temporal::TempoPoint * _tempo;
Temporal::TempoPoint * previous_tempo;
Temporal::TempoMap::WritableSharedPtr map;
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 &, Temporal::TimeDomain);
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;
}
bool allow_vertical_autoscroll () const {
return false;
}
void setup_pointer_offset ();
};
/** Region fade-out drag */
class FadeOutDrag : public RegionDrag
{
public:
FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, Temporal::TimeDomain td);
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;
}
bool allow_vertical_autoscroll () const {
return false;
}
void setup_pointer_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_offset ();
void setup_video_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);
bool allow_vertical_autoscroll () const {
return false;
}
private:
ControlPoint* _point;
double _fixed_grab_x;
double _fixed_grab_y;
double _cumulative_y_drag;
bool _pushing;
uint32_t _final_index;
static double _zero_gain_fraction;
Temporal::timecnt_t total_dt (GdkEvent*) const;
};
/** Gain or automation line drag */
class LineDrag : public Drag
{
public:
LineDrag (Editor *e, ArdourCanvas::Item *i);
~LineDrag ();
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;
}
private:
AutomationLine* _line;
double _fixed_grab_x;
double _fixed_grab_y;
double _cumulative_y_drag;
uint32_t _before;
uint32_t _after;
bool have_command;
};
/** 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<Temporal::timecnt_t,int> move_threshold () const {
return std::make_pair (Temporal::timecnt_t (8, Temporal::AudioTime), 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 as a timepos_t
* @param x2 The right-hand side of the rectangle as a timepos_t.
* @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, Temporal::timepos_t const & x1, Temporal::timepos_t const & 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, Temporal::timepos_t const &, Temporal::timepos_t const &, double, double, bool);
void deselect_things ();
};
/** A RubberbandSelectDrag for selecting MIDI notes */
class MidiRubberbandSelectDrag : public RubberbandSelectDrag
{
public:
MidiRubberbandSelectDrag (Editor *, MidiRegionView *);
void select_things (int, Temporal::timepos_t const &, Temporal::timepos_t const &, double, double, bool);
void deselect_things ();
private:
MidiRegionView* _region_view;
};
/** A RubberbandSelectDrag for selecting MIDI notes but with no horizontal component */
class MidiVerticalSelectDrag : public RubberbandSelectDrag
{
public:
MidiVerticalSelectDrag (Editor *, MidiRegionView *);
void select_things (int, Temporal::timepos_t const &, Temporal::timepos_t const &, 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 &, Temporal::TimeDomain td);
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
void motion (GdkEvent *, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
private:
bool _dragging_start;
};
/** 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_offset ();
private:
Operation _operation;
bool _add;
TrackSelection _track_selection_at_start;
bool _time_selection_at_start;
Temporal::timepos_t start_at_start;
Temporal::timepos_t end_at_start;
};
/** Drag time-selection markers */
class SelectionMarkerDrag : public Drag
{
public:
SelectionMarkerDrag (Editor*, ArdourCanvas::Item*);
void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
void motion (GdkEvent*, bool);
void finished (GdkEvent *, bool);
void aborted (bool);
private:
bool _edit_start;
Temporal::timepos_t _start_at_start;
Temporal::timepos_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<Temporal::timecnt_t,int> move_threshold () const {
return std::make_pair (Temporal::timecnt_t (4, Temporal::AudioTime), 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 *, float initial_value, std::list<ARDOUR::TimelineRange> const &);
AutomationRangeDrag (Editor *, std::list<RegionView*> const &, std::list<ARDOUR::TimelineRange> 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<std::shared_ptr<AutomationLine> > const &);
double y_fraction (double global_y_position) const;
double value (std::shared_ptr<ARDOUR::AutomationList> list, Temporal::timepos_t const & x) const;
std::list<ARDOUR::TimelineRange> _ranges;
/** A line that is part of the drag */
struct Line {
std::shared_ptr<AutomationLine> line; ///< the line
std::list<ControlPoint*> points; ///< points to drag on the line
std::pair<Temporal::timepos_t, Temporal::timepos_t> range; ///< the range of all points on the line, in session time
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;
float_t _initial_value;
};
/** 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;
}
std::pair<Temporal::timecnt_t,int> move_threshold () const {
return std::make_pair (Temporal::timecnt_t (4, Temporal::AudioTime), 4);
}
private:
AudioRegionView* arv;
bool start;
};
class RegionMarkerDrag : public Drag
{
public:
RegionMarkerDrag (Editor*, RegionView*, ArdourCanvas::Item*);
~RegionMarkerDrag ();
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:
RegionView* rv;
ArdourMarker* view;
ARDOUR::CueMarker model;
ARDOUR::CueMarker dragging_model;
};
#endif /* __gtk2_ardour_editor_drag_h_ */