git-svn-id: svn://localhost/ardour2/branches/3.0@7662 d708f5d6-7413-0410-9779-e7cbd77b26cf
793 lines
18 KiB
C++
793 lines
18 KiB
C++
/*
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Copyright (C) 2009 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __gtk2_ardour_editor_drag_h_
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#define __gtk2_ardour_editor_drag_h_
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#include <list>
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#include <gdk/gdk.h>
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#include <stdint.h>
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#include <bitset>
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#include "ardour/types.h"
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#include "canvas.h"
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#include "editor_items.h"
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namespace ARDOUR {
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class Location;
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}
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namespace Gnome {
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namespace Canvas {
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class CanvasNoteEvent;
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}
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}
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class Editor;
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class EditorCursor;
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class TimeAxisView;
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class MidiTimeAxisView;
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class Drag;
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/** Class to manage current drags */
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class DragManager
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{
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public:
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DragManager (Editor* e);
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~DragManager ();
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bool motion_handler (GdkEvent *, bool);
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void abort ();
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void add (Drag *);
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void set (Drag *, GdkEvent *, Gdk::Cursor* c = 0);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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bool end_grab (GdkEvent *);
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bool have_item (ArdourCanvas::Item *) const;
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/** @return true if an end drag or abort is in progress */
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bool ending () const {
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return _ending;
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}
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bool active () const {
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return !_drags.empty ();
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}
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/** @return current pointer x position in trackview coordinates */
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double current_pointer_x () const {
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return _current_pointer_x;
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}
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/** @return current pointer y position in trackview coordinates */
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double current_pointer_y () const {
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return _current_pointer_y;
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}
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/** @return current pointer frame */
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nframes64_t current_pointer_frame () const {
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return _current_pointer_frame;
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}
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private:
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Editor* _editor;
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std::list<Drag*> _drags;
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bool _ending; ///< true if end_grab or abort is in progress, otherwise false
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double _current_pointer_x; ///< trackview x of the current pointer
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double _current_pointer_y; ///< trackview y of the current pointer
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nframes64_t _current_pointer_frame; ///< frame that the pointer is now at
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};
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/** Abstract base class for dragging of things within the editor */
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class Drag
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{
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public:
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Drag (Editor *, ArdourCanvas::Item *);
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virtual ~Drag () {}
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void set_manager (DragManager* m) {
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_drags = m;
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}
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/** @return the canvas item being dragged */
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ArdourCanvas::Item* item () const {
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return _item;
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}
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void swap_grab (ArdourCanvas::Item *, Gdk::Cursor *, uint32_t);
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bool motion_handler (GdkEvent*, bool);
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void abort ();
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nframes64_t adjusted_frame (nframes64_t, GdkEvent const *, bool snap = true) const;
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nframes64_t adjusted_current_frame (GdkEvent const *, bool snap = true) const;
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/** Called to start a grab of an item.
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* @param e Event that caused the grab to start.
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* @param c Cursor to use, or 0.
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*/
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virtual void start_grab (GdkEvent* e, Gdk::Cursor* c = 0);
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virtual bool end_grab (GdkEvent *);
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/** Called when a drag motion has occurred.
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* @param e Event describing the motion.
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* @param f true if this is the first movement, otherwise false.
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*/
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virtual void motion (GdkEvent* e, bool f) = 0;
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/** Called when a drag has finished.
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* @param e Event describing the finish.
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* @param m true if some movement occurred, otherwise false.
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*/
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virtual void finished (GdkEvent* e, bool m) = 0;
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/** Called to abort a drag and return things to how
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* they were before it started.
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*/
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virtual void aborted () = 0;
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/** @param m Mouse mode.
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* @return true if this drag should happen in this mouse mode.
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*/
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virtual bool active (Editing::MouseMode m) {
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return (m != Editing::MouseGain);
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}
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/** @return minimum number of frames (in x) and pixels (in y) that should be considered a movement */
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virtual std::pair<nframes64_t, int> move_threshold () const {
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return std::make_pair (1, 1);
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}
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virtual bool allow_vertical_autoscroll () const {
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return true;
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}
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/** @return true if x movement matters to this drag */
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virtual bool x_movement_matters () const {
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return true;
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}
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/** @return true if y movement matters to this drag */
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virtual bool y_movement_matters () const {
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return true;
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}
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protected:
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double grab_x () const {
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return _grab_x;
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}
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double grab_y () const {
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return _grab_y;
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}
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ARDOUR::framepos_t grab_frame () const {
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return _grab_frame;
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}
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double last_pointer_x () const {
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return _last_pointer_x;
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}
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double last_pointer_y () const {
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return _last_pointer_y;
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}
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double last_pointer_frame () const {
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return _last_pointer_frame;
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}
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Editor* _editor; ///< our editor
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DragManager* _drags;
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ArdourCanvas::Item* _item; ///< our item
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/** Offset from the mouse's position for the drag to the start of the thing that is being dragged */
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nframes64_t _pointer_frame_offset;
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bool _x_constrained; ///< true if x motion is constrained, otherwise false
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bool _y_constrained; ///< true if y motion is constrained, otherwise false
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bool _was_rolling; ///< true if the session was rolling before the drag started, otherwise false
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private:
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bool _move_threshold_passed; ///< true if the move threshold has been passed, otherwise false
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double _grab_x; ///< trackview x of the grab start position
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double _grab_y; ///< trackview y of the grab start position
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double _last_pointer_x; ///< trackview x of the pointer last time a motion occurred
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double _last_pointer_y; ///< trackview y of the pointer last time a motion occurred
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nframes64_t _grab_frame; ///< adjusted_frame that the mouse was at when start_grab was called, or 0
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nframes64_t _last_pointer_frame; ///< adjusted_frame the last time a motion occurred
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};
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struct DraggingView
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{
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DraggingView (RegionView* v);
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RegionView* view; ///< the view
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double initial_y; ///< the initial y position of the view before any reparenting
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};
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/** Abstract base class for drags that involve region(s) */
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class RegionDrag : public Drag, public sigc::trackable
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{
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public:
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RegionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
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virtual ~RegionDrag () {}
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protected:
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RegionView* _primary; ///< the view that was clicked on (or whatever) to start the drag
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std::list<DraggingView> _views; ///< information about all views that are being dragged
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private:
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void region_going_away (RegionView *);
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PBD::ScopedConnection death_connection;
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};
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/** Drags involving region motion from somewhere */
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class RegionMotionDrag : public RegionDrag
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{
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public:
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RegionMotionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool);
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virtual ~RegionMotionDrag () {}
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virtual void start_grab (GdkEvent *, Gdk::Cursor *);
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virtual void motion (GdkEvent *, bool);
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virtual void finished (GdkEvent *, bool) = 0;
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virtual void aborted ();
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/** @return true if the regions being `moved' came from somewhere on the canvas;
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* false if they came from outside (e.g. from the region list).
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*/
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virtual bool regions_came_from_canvas () const = 0;
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protected:
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struct TimeAxisViewSummary {
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TimeAxisViewSummary () : height_list(512) {}
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std::bitset<512> tracks;
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std::vector<int32_t> height_list;
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int visible_y_low;
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int visible_y_high;
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};
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void copy_regions (GdkEvent *);
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bool y_movement_disallowed (int, int, int, TimeAxisViewSummary const &) const;
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std::map<RegionView*, std::pair<RouteTimeAxisView*, int> > find_time_axis_views_and_layers ();
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double compute_x_delta (GdkEvent const *, nframes64_t *);
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bool compute_y_delta (
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TimeAxisView const *, TimeAxisView*, int32_t, int32_t, TimeAxisViewSummary const &,
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int32_t *, int32_t *, int32_t *
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);
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TimeAxisViewSummary get_time_axis_view_summary ();
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bool x_move_allowed () const;
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TimeAxisView* _dest_trackview;
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ARDOUR::layer_t _dest_layer;
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bool check_possible (RouteTimeAxisView **, ARDOUR::layer_t *);
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bool _brushing;
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nframes64_t _last_frame_position; ///< last position of the thing being dragged
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double _total_x_delta;
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};
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/** Drags to move (or copy) regions that are already shown in the GUI to
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* somewhere different.
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*/
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class RegionMoveDrag : public RegionMotionDrag
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{
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public:
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RegionMoveDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool, bool);
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virtual ~RegionMoveDrag () {}
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virtual void start_grab (GdkEvent *, Gdk::Cursor *);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool regions_came_from_canvas () const {
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return true;
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}
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std::pair<nframes64_t, int> move_threshold () const {
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return std::make_pair (4, 4);
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}
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private:
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bool _copy;
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};
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/** Drag to insert a region from somewhere */
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class RegionInsertDrag : public RegionMotionDrag
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{
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public:
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RegionInsertDrag (Editor *, boost::shared_ptr<ARDOUR::Region>, RouteTimeAxisView*, nframes64_t);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool regions_came_from_canvas () const {
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return false;
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}
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};
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/** Region drag in splice mode */
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class RegionSpliceDrag : public RegionMoveDrag
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{
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public:
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RegionSpliceDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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};
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/** Drags to create regions */
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class RegionCreateDrag : public Drag
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{
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public:
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RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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private:
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MidiTimeAxisView* _view;
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boost::shared_ptr<ARDOUR::Region> _region;
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};
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/** Drags to resize MIDI notes */
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class NoteResizeDrag : public Drag
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{
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public:
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NoteResizeDrag (Editor *, ArdourCanvas::Item *);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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private:
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MidiRegionView* region;
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bool relative;
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bool at_front;
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};
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/** Drags to move MIDI notes */
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class NoteDrag : public Drag
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{
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public:
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NoteDrag (Editor*, ArdourCanvas::Item*);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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private:
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ARDOUR::frameoffset_t total_dx () const;
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int8_t total_dy () const;
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MidiRegionView* _region;
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Gnome::Canvas::CanvasNoteEvent* _primary;
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double _cumulative_dx;
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double _cumulative_dy;
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bool _was_selected;
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double _note_height;
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};
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/** Drag of region gain */
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class RegionGainDrag : public Drag
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{
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public:
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RegionGainDrag (Editor *e, ArdourCanvas::Item *i) : Drag (e, i) {}
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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bool active (Editing::MouseMode m) {
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return (m == Editing::MouseGain);
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}
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void aborted ();
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};
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/** Drag to trim region(s) */
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class TrimDrag : public RegionDrag
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{
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public:
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enum Operation {
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StartTrim,
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EndTrim,
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ContentsTrim,
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};
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TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool y_movement_matters () const {
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return false;
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}
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private:
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Operation _operation;
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bool _have_transaction; ///< true if a transaction has been started, false otherwise. Must be set true by derived class.
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};
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/** Meter marker drag */
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class MeterMarkerDrag : public Drag
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{
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public:
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MeterMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool allow_vertical_autoscroll () const {
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return false;
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}
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bool y_movement_matters () const {
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return false;
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}
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private:
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MeterMarker* _marker;
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bool _copy;
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};
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/** Tempo marker drag */
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class TempoMarkerDrag : public Drag
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{
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public:
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TempoMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool allow_vertical_autoscroll () const {
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return false;
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}
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bool y_movement_matters () const {
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return false;
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}
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private:
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TempoMarker* _marker;
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bool _copy;
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};
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/** Drag of a cursor */
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class CursorDrag : public Drag
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{
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public:
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CursorDrag (Editor *, ArdourCanvas::Item *, bool);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool active (Editing::MouseMode) {
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return true;
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}
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bool allow_vertical_autoscroll () const {
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return false;
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}
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bool y_movement_matters () const {
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return false;
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}
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private:
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EditorCursor* _cursor; ///< cursor being dragged
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bool _stop; ///< true to stop the transport on starting the drag, otherwise false
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};
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/** Region fade-in drag */
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class FadeInDrag : public RegionDrag
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{
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public:
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FadeInDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool y_movement_matters () const {
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return false;
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}
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};
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/** Region fade-out drag */
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class FadeOutDrag : public RegionDrag
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{
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public:
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FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool y_movement_matters () const {
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return false;
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}
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};
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/** Marker drag */
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class MarkerDrag : public Drag
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{
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public:
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MarkerDrag (Editor *, ArdourCanvas::Item *);
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~MarkerDrag ();
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool allow_vertical_autoscroll () const {
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return false;
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}
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bool y_movement_matters () const {
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return false;
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}
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private:
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void update_item (ARDOUR::Location *);
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Marker* _marker; ///< marker being dragged
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std::list<ARDOUR::Location*> _copied_locations;
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ArdourCanvas::Line* _line;
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ArdourCanvas::Points _points;
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};
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/** Control point drag */
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class ControlPointDrag : public Drag
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{
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public:
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ControlPointDrag (Editor *, ArdourCanvas::Item *);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool active (Editing::MouseMode m);
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private:
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ControlPoint* _point;
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double _fixed_grab_x;
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double _fixed_grab_y;
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double _cumulative_x_drag;
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double _cumulative_y_drag;
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static double const _zero_gain_fraction;
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};
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/** Gain or automation line drag */
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class LineDrag : public Drag
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{
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public:
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LineDrag (Editor *e, ArdourCanvas::Item *i);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool active (Editing::MouseMode) {
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return true;
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}
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private:
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AutomationLine* _line;
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double _fixed_grab_x;
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double _fixed_grab_y;
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uint32_t _before;
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uint32_t _after;
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double _cumulative_y_drag;
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};
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/** Transient feature line drags*/
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class FeatureLineDrag : public Drag
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{
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public:
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FeatureLineDrag (Editor *e, ArdourCanvas::Item *i);
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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bool active (Editing::MouseMode) {
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return true;
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}
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private:
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ArdourCanvas::SimpleLine* _line;
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AudioRegionView* _arv;
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double _region_view_grab_x;
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double _cumulative_x_drag;
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uint32_t _before;
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uint32_t _max_x;
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};
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/** Dragging of a rubberband rectangle for selecting things */
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class RubberbandSelectDrag : public Drag
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{
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public:
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RubberbandSelectDrag (Editor *e, ArdourCanvas::Item *i) : Drag (e, i) {}
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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std::pair<nframes64_t, int> move_threshold () const {
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return std::make_pair (8, 1);
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}
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};
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/** Region drag in time-FX mode */
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class TimeFXDrag : public RegionDrag
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{
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public:
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TimeFXDrag (Editor *e, ArdourCanvas::Item *i, RegionView* p, std::list<RegionView*> const & v) : RegionDrag (e, i, p, v) {}
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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};
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/** Scrub drag in audition mode */
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class ScrubDrag : public Drag
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{
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public:
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ScrubDrag (Editor *e, ArdourCanvas::Item *i) : Drag (e, i) {}
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
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void aborted ();
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};
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/** Drag in range select mode */
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class SelectionDrag : public Drag
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|
{
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public:
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enum Operation {
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CreateSelection,
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SelectionStartTrim,
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SelectionEndTrim,
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SelectionMove
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};
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SelectionDrag (Editor *, ArdourCanvas::Item *, Operation);
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|
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
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void motion (GdkEvent *, bool);
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void finished (GdkEvent *, bool);
|
|
void aborted ();
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|
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private:
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|
Operation _operation;
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|
bool _copy;
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int _original_pointer_time_axis;
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|
int _last_pointer_time_axis;
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std::list<TimeAxisView*> _added_time_axes;
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};
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|
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/** Range marker drag */
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class RangeMarkerBarDrag : public Drag
|
|
{
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public:
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enum Operation {
|
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CreateRangeMarker,
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CreateTransportMarker,
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|
CreateCDMarker
|
|
};
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|
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RangeMarkerBarDrag (Editor *, ArdourCanvas::Item *, Operation);
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|
|
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void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
|
|
void motion (GdkEvent *, bool);
|
|
void finished (GdkEvent *, bool);
|
|
void aborted ();
|
|
|
|
bool allow_vertical_autoscroll () const {
|
|
return false;
|
|
}
|
|
|
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bool y_movement_matters () const {
|
|
return false;
|
|
}
|
|
|
|
private:
|
|
void update_item (ARDOUR::Location *);
|
|
|
|
Operation _operation;
|
|
ArdourCanvas::SimpleRect* _drag_rect;
|
|
bool _copy;
|
|
};
|
|
|
|
/** Drag of rectangle to set zoom */
|
|
class MouseZoomDrag : public Drag
|
|
{
|
|
public:
|
|
MouseZoomDrag (Editor* e, ArdourCanvas::Item *i) : Drag (e, i) {}
|
|
|
|
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
|
|
void motion (GdkEvent *, bool);
|
|
void finished (GdkEvent *, bool);
|
|
void aborted ();
|
|
};
|
|
|
|
/** Drag of a range of automation data, changing value but not position */
|
|
class AutomationRangeDrag : public Drag
|
|
{
|
|
public:
|
|
AutomationRangeDrag (Editor *, ArdourCanvas::Item *, std::list<ARDOUR::AudioRange> const &);
|
|
|
|
void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
|
|
void motion (GdkEvent *, bool);
|
|
void finished (GdkEvent *, bool);
|
|
void aborted ();
|
|
|
|
bool x_movement_matters () const {
|
|
return false;
|
|
}
|
|
|
|
private:
|
|
std::list<ARDOUR::AudioRange> _ranges;
|
|
AutomationTimeAxisView* _atav;
|
|
boost::shared_ptr<AutomationLine> _line;
|
|
bool _nothing_to_drag;
|
|
};
|
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|
|
#endif /* __gtk2_ardour_editor_drag_h_ */
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