2 Copyright (C) 2009 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __gtk2_ardour_editor_drag_h_
21 #define __gtk2_ardour_editor_drag_h_
28 #include "ardour/types.h"
30 #include "editor_items.h"
37 class StatefulDiffCommand;
44 class MidiTimeAxisView;
48 /** Class to manage current drags */
53 DragManager (Editor* e);
56 bool motion_handler (GdkEvent *, bool);
60 void set (Drag *, GdkEvent *, Gdk::Cursor* c = 0);
61 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
62 bool end_grab (GdkEvent *);
63 bool have_item (ArdourCanvas::Item *) const;
65 void mark_double_click ();
67 /** @return true if an end drag or abort is in progress */
68 bool ending () const {
72 bool active () const {
73 return !_drags.empty ();
76 /** @return current pointer x position in canvas coordinates */
77 double current_pointer_x () const {
78 return _current_pointer_x;
81 /** @return current pointer y position in canvas coordinates */
82 double current_pointer_y () const {
83 return _current_pointer_y;
86 /** @return current pointer frame */
87 ARDOUR::framepos_t current_pointer_frame () const {
88 return _current_pointer_frame;
93 std::list<Drag*> _drags;
94 bool _ending; ///< true if end_grab or abort is in progress, otherwise false
95 double _current_pointer_x; ///< canvas-coordinate space x of the current pointer
96 double _current_pointer_y; ///< canvas-coordinate space y of the current pointer
97 ARDOUR::framepos_t _current_pointer_frame; ///< frame that the pointer is now at
98 bool _old_follow_playhead; ///< state of Editor::follow_playhead() before the drags started
101 /** Abstract base class for dragging of things within the editor */
105 Drag (Editor *, ArdourCanvas::Item *, bool trackview_only = true);
108 void set_manager (DragManager* m) {
112 /** @return the canvas item being dragged */
113 ArdourCanvas::Item* item () const {
117 void swap_grab (ArdourCanvas::Item *, Gdk::Cursor *, uint32_t);
118 bool motion_handler (GdkEvent*, bool);
121 ARDOUR::framepos_t adjusted_frame (ARDOUR::framepos_t, GdkEvent const *, bool snap = true) const;
122 ARDOUR::framepos_t adjusted_current_frame (GdkEvent const *, bool snap = true) const;
124 bool was_double_click() const { return _was_double_click; }
125 void set_double_click (bool yn) { _was_double_click = yn; }
127 /** Called to start a grab of an item.
128 * @param e Event that caused the grab to start.
129 * @param c Cursor to use, or 0.
131 virtual void start_grab (GdkEvent* e, Gdk::Cursor* c = 0);
133 virtual bool end_grab (GdkEvent *);
135 /** Called when a drag motion has occurred.
136 * @param e Event describing the motion.
137 * @param f true if this is the first movement, otherwise false.
139 virtual void motion (GdkEvent* e, bool f) = 0;
141 /** Called when a drag has finished.
142 * @param e Event describing the finish.
143 * @param m true if some movement occurred, otherwise false.
145 virtual void finished (GdkEvent* e, bool m) = 0;
147 /** Called to abort a drag and return things to how
148 * they were before it started.
149 * @param m true if some movement occurred, otherwise false.
151 virtual void aborted (bool m) = 0;
153 /** @param m Mouse mode.
154 * @return true if this drag should happen in this mouse mode.
156 virtual bool active (Editing::MouseMode m) {
157 return (m != Editing::MouseGain);
160 /** @return minimum number of frames (in x) and pixels (in y) that should be considered a movement */
161 virtual std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
162 return std::make_pair (1, 1);
165 virtual bool allow_vertical_autoscroll () const {
169 /** @return true if x movement matters to this drag */
170 virtual bool x_movement_matters () const {
174 /** @return true if y movement matters to this drag */
175 virtual bool y_movement_matters () const {
179 /** Set up the _pointer_frame_offset */
180 virtual void setup_pointer_frame_offset () {
181 _pointer_frame_offset = 0;
186 double grab_x () const {
190 double grab_y () const {
194 ARDOUR::framepos_t raw_grab_frame () const {
195 return _raw_grab_frame;
198 ARDOUR::framepos_t grab_frame () const {
202 double last_pointer_x () const {
203 return _last_pointer_x;
206 double last_pointer_y () const {
207 return _last_pointer_y;
210 double last_pointer_frame () const {
211 return _last_pointer_frame;
214 double current_pointer_y () const;
216 boost::shared_ptr<ARDOUR::Region> add_midi_region (MidiTimeAxisView*);
218 void show_verbose_cursor_time (framepos_t);
219 void show_verbose_cursor_duration (framepos_t, framepos_t, double xoffset = 0);
220 void show_verbose_cursor_text (std::string const &);
222 Editor* _editor; ///< our editor
224 ArdourCanvas::Item* _item; ///< our item
225 /** Offset from the mouse's position for the drag to the start of the thing that is being dragged */
226 ARDOUR::framecnt_t _pointer_frame_offset;
227 bool _x_constrained; ///< true if x motion is constrained, otherwise false
228 bool _y_constrained; ///< true if y motion is constrained, otherwise false
229 bool _was_rolling; ///< true if the session was rolling before the drag started, otherwise false
232 bool _trackview_only; ///< true if pointer y value should always be relative to the top of the trackview group
233 bool _move_threshold_passed; ///< true if the move threshold has been passed, otherwise false
234 bool _was_double_click; ///< true if drag initiated by a double click event
235 double _grab_x; ///< trackview x of the grab start position
236 double _grab_y; ///< y of the grab start position, possibly adjusted if _trackview_only is true
237 double _last_pointer_x; ///< trackview x of the pointer last time a motion occurred
238 double _last_pointer_y; ///< trackview y of the pointer last time a motion occurred
239 ARDOUR::framepos_t _raw_grab_frame; ///< unsnapped frame that the mouse was at when start_grab was called, or 0
240 ARDOUR::framepos_t _grab_frame; ///< adjusted_frame that the mouse was at when start_grab was called, or 0
241 ARDOUR::framepos_t _last_pointer_frame; ///< adjusted_frame the last time a motion occurred
246 /** Container for details about a region being dragged */
250 DraggingView (RegionView *, RegionDrag *, TimeAxisView* original_tav);
252 RegionView* view; ///< the view
253 /** index into RegionDrag::_time_axis_views of the view that this region is currently being displayed on,
254 * or -1 if it is not visible.
257 /** layer that this region is currently being displayed on. This is a double
258 rather than a layer_t as we use fractional layers during drags to allow the user
259 to indicate a new layer to put a region on.
262 double initial_y; ///< the initial y position of the view before any reparenting
263 framepos_t initial_position; ///< initial position of the region
264 framepos_t initial_end; ///< initial end position of the region
265 framepos_t anchored_fade_length; ///< fade_length when anchored during drag
266 boost::shared_ptr<ARDOUR::Playlist> initial_playlist;
267 TimeAxisView* initial_time_axis_view;
270 /** Abstract base class for drags that involve region(s) */
271 class RegionDrag : public Drag, public sigc::trackable
274 RegionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
275 virtual ~RegionDrag () {}
279 RegionView* _primary; ///< the view that was clicked on (or whatever) to start the drag
280 std::list<DraggingView> _views; ///< information about all views that are being dragged
282 /** a list of the non-hidden TimeAxisViews sorted by editor order key */
283 std::vector<TimeAxisView*> _time_axis_views;
284 int find_time_axis_view (TimeAxisView *) const;
289 friend class DraggingView;
293 void region_going_away (RegionView *);
294 PBD::ScopedConnection death_connection;
298 /** Drags involving region motion from somewhere */
299 class RegionMotionDrag : public RegionDrag
303 RegionMotionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool);
304 virtual ~RegionMotionDrag () {}
306 virtual void start_grab (GdkEvent *, Gdk::Cursor *);
307 virtual void motion (GdkEvent *, bool);
308 virtual void finished (GdkEvent *, bool);
309 virtual void aborted (bool);
311 /** @return true if the regions being `moved' came from somewhere on the canvas;
312 * false if they came from outside (e.g. from the region list).
314 virtual bool regions_came_from_canvas () const = 0;
318 double compute_x_delta (GdkEvent const *, ARDOUR::framepos_t *);
319 bool y_movement_allowed (int, double) const;
322 ARDOUR::framepos_t _last_frame_position; ///< last position of the thing being dragged
323 double _total_x_delta;
324 int _last_pointer_time_axis_view;
325 double _last_pointer_layer;
329 /** Drags to move (or copy) regions that are already shown in the GUI to
330 * somewhere different.
332 class RegionMoveDrag : public RegionMotionDrag
335 RegionMoveDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool, bool);
336 virtual ~RegionMoveDrag () {}
338 void motion (GdkEvent *, bool);
339 void finished (GdkEvent *, bool);
342 bool regions_came_from_canvas () const {
346 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
347 return std::make_pair (4, 4);
350 void setup_pointer_frame_offset ();
353 typedef std::set<boost::shared_ptr<ARDOUR::Playlist> > PlaylistSet;
355 void finished_no_copy (
358 ARDOUR::framecnt_t const
364 ARDOUR::framecnt_t const
367 RegionView* insert_region_into_playlist (
368 boost::shared_ptr<ARDOUR::Region>,
375 void remove_region_from_playlist (
376 boost::shared_ptr<ARDOUR::Region>,
377 boost::shared_ptr<ARDOUR::Playlist>,
378 PlaylistSet& modified_playlists
381 void add_stateful_diff_commands_for_playlists (PlaylistSet const &);
383 void collect_new_region_view (RegionView *);
384 RouteTimeAxisView* create_destination_time_axis (boost::shared_ptr<ARDOUR::Region>, TimeAxisView* original);
387 RegionView* _new_region_view;
390 /** Drag to insert a region from somewhere */
391 class RegionInsertDrag : public RegionMotionDrag
394 RegionInsertDrag (Editor *, boost::shared_ptr<ARDOUR::Region>, RouteTimeAxisView*, ARDOUR::framepos_t);
396 void finished (GdkEvent *, bool);
399 bool regions_came_from_canvas () const {
404 /** Region drag in splice mode */
405 class RegionSpliceDrag : public RegionMoveDrag
408 RegionSpliceDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
410 void motion (GdkEvent *, bool);
411 void finished (GdkEvent *, bool);
415 /** Drags to create regions */
416 class RegionCreateDrag : public Drag
419 RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *);
421 void motion (GdkEvent *, bool);
422 void finished (GdkEvent *, bool);
426 MidiTimeAxisView* _view;
427 boost::shared_ptr<ARDOUR::Region> _region;
430 /** Drags to resize MIDI notes */
431 class NoteResizeDrag : public Drag
434 NoteResizeDrag (Editor *, ArdourCanvas::Item *);
436 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
437 void motion (GdkEvent *, bool);
438 void finished (GdkEvent *, bool);
442 MidiRegionView* region;
447 /** Drags to move MIDI notes */
448 class NoteDrag : public Drag
451 NoteDrag (Editor*, ArdourCanvas::Item*);
453 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
454 void motion (GdkEvent *, bool);
455 void finished (GdkEvent *, bool);
460 ARDOUR::frameoffset_t total_dx () const;
461 int8_t total_dy () const;
463 MidiRegionView* _region;
465 double _cumulative_dx;
466 double _cumulative_dy;
471 class NoteCreateDrag : public Drag
474 NoteCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *);
477 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
478 void motion (GdkEvent *, bool);
479 void finished (GdkEvent *, bool);
483 double y_to_region (double) const;
484 framecnt_t grid_frames (framepos_t) const;
486 MidiRegionView* _region_view;
487 ArdourCanvas::Rectangle* _drag_rect;
491 /** Drag to move MIDI patch changes */
492 class PatchChangeDrag : public Drag
495 PatchChangeDrag (Editor *, PatchChange *, MidiRegionView *);
497 void motion (GdkEvent *, bool);
498 void finished (GdkEvent *, bool);
501 bool y_movement_matters () const {
505 void setup_pointer_frame_offset ();
508 MidiRegionView* _region_view;
509 PatchChange* _patch_change;
510 double _cumulative_dx;
513 /** Container for details about audio regions being dragged along with video */
517 AVDraggingView (RegionView *);
519 RegionView* view; ///< the view
520 framepos_t initial_position; ///< initial position of the region
523 /** Drag of video offset */
524 class VideoTimeLineDrag : public Drag
527 VideoTimeLineDrag (Editor *e, ArdourCanvas::Item *i);
529 void motion (GdkEvent *, bool);
530 void finished (GdkEvent *, bool);
531 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
533 bool y_movement_matters () const {
537 bool allow_vertical_autoscroll () const {
544 std::list<AVDraggingView> _views; ///< information about all audio that are being dragged along
547 ARDOUR::frameoffset_t _startdrag_video_offset;
548 ARDOUR::frameoffset_t _max_backwards_drag;
551 /** Drag to trim region(s) */
552 class TrimDrag : public RegionDrag
561 TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &, bool preserve_fade_anchor = false);
563 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
564 void motion (GdkEvent *, bool);
565 void finished (GdkEvent *, bool);
568 bool y_movement_matters () const {
572 void setup_pointer_frame_offset ();
576 Operation _operation;
578 bool _preserve_fade_anchor;
579 bool _jump_position_when_done;
582 /** Meter marker drag */
583 class MeterMarkerDrag : public Drag
586 MeterMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
588 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
589 void motion (GdkEvent *, bool);
590 void finished (GdkEvent *, bool);
593 bool allow_vertical_autoscroll () const {
597 bool y_movement_matters () const {
601 void setup_pointer_frame_offset ();
604 MeterMarker* _marker;
606 XMLNode* before_state;
609 /** Tempo marker drag */
610 class TempoMarkerDrag : public Drag
613 TempoMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
615 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
616 void motion (GdkEvent *, bool);
617 void finished (GdkEvent *, bool);
620 bool allow_vertical_autoscroll () const {
624 bool y_movement_matters () const {
628 void setup_pointer_frame_offset ();
631 TempoMarker* _marker;
633 XMLNode* before_state;
637 /** Drag of the playhead cursor */
638 class CursorDrag : public Drag
641 CursorDrag (Editor *, EditorCursor&, bool);
643 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
644 void motion (GdkEvent *, bool);
645 void finished (GdkEvent *, bool);
648 bool active (Editing::MouseMode) {
652 bool allow_vertical_autoscroll () const {
656 bool y_movement_matters () const {
661 void fake_locate (framepos_t);
663 EditorCursor& _cursor;
664 bool _stop; ///< true to stop the transport on starting the drag, otherwise false
665 double _grab_zoom; ///< editor frames per unit when our grab started
668 /** Region fade-in drag */
669 class FadeInDrag : public RegionDrag
672 FadeInDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
674 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
675 void motion (GdkEvent *, bool);
676 void finished (GdkEvent *, bool);
679 bool y_movement_matters () const {
683 void setup_pointer_frame_offset ();
686 /** Region fade-out drag */
687 class FadeOutDrag : public RegionDrag
690 FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
692 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
693 void motion (GdkEvent *, bool);
694 void finished (GdkEvent *, bool);
697 bool y_movement_matters () const {
701 void setup_pointer_frame_offset ();
705 class MarkerDrag : public Drag
708 MarkerDrag (Editor *, ArdourCanvas::Item *);
711 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
712 void motion (GdkEvent *, bool);
713 void finished (GdkEvent *, bool);
716 bool allow_vertical_autoscroll () const {
720 bool y_movement_matters () const {
724 void setup_pointer_frame_offset ();
727 void update_item (ARDOUR::Location *);
729 Marker* _marker; ///< marker being dragged
731 struct CopiedLocationMarkerInfo {
732 ARDOUR::Location* location;
733 std::vector<Marker*> markers;
735 CopiedLocationMarkerInfo (ARDOUR::Location* l, Marker* m);
738 typedef std::list<CopiedLocationMarkerInfo> CopiedLocationInfo;
739 CopiedLocationInfo _copied_locations;
740 ArdourCanvas::Points _points;
743 /** Control point drag */
744 class ControlPointDrag : public Drag
747 ControlPointDrag (Editor *, ArdourCanvas::Item *);
749 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
750 void motion (GdkEvent *, bool);
751 void finished (GdkEvent *, bool);
754 bool active (Editing::MouseMode m);
758 ControlPoint* _point;
759 double _fixed_grab_x;
760 double _fixed_grab_y;
761 double _cumulative_x_drag;
762 double _cumulative_y_drag;
764 uint32_t _final_index;
765 static double _zero_gain_fraction;
768 /** Gain or automation line drag */
769 class LineDrag : public Drag
772 LineDrag (Editor *e, ArdourCanvas::Item *i);
774 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
775 void motion (GdkEvent *, bool);
776 void finished (GdkEvent *, bool);
779 bool active (Editing::MouseMode) {
785 AutomationLine* _line;
786 double _fixed_grab_x;
787 double _fixed_grab_y;
790 double _cumulative_y_drag;
793 /** Transient feature line drags*/
794 class FeatureLineDrag : public Drag
797 FeatureLineDrag (Editor *e, ArdourCanvas::Item *i);
799 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
800 void motion (GdkEvent *, bool);
801 void finished (GdkEvent *, bool);
804 bool active (Editing::MouseMode) {
810 ArdourCanvas::Line* _line;
811 AudioRegionView* _arv;
813 double _region_view_grab_x;
814 double _cumulative_x_drag;
820 /** Dragging of a rubberband rectangle for selecting things */
821 class RubberbandSelectDrag : public Drag
824 RubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
826 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
827 void motion (GdkEvent *, bool);
828 void finished (GdkEvent *, bool);
831 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
832 return std::make_pair (8, 1);
835 void do_select_things (GdkEvent *, bool);
837 /** Select some things within a rectangle.
838 * @param button_state The button state from the GdkEvent.
839 * @param x1 The left-hand side of the rectangle in session frames.
840 * @param x2 The right-hand side of the rectangle in session frames.
841 * @param y1 The top of the rectangle in trackview coordinates.
842 * @param y2 The bottom of the rectangle in trackview coordinates.
843 * @param drag_in_progress true if the drag is currently happening.
845 virtual void select_things (int button_state, framepos_t x1, framepos_t x2, double y1, double y2, bool drag_in_progress) = 0;
847 virtual void deselect_things () = 0;
853 /** A general editor RubberbandSelectDrag (for regions, automation points etc.) */
854 class EditorRubberbandSelectDrag : public RubberbandSelectDrag
857 EditorRubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
859 void select_things (int, framepos_t, framepos_t, double, double, bool);
860 void deselect_things ();
863 /** A RubberbandSelectDrag for selecting MIDI notes */
864 class MidiRubberbandSelectDrag : public RubberbandSelectDrag
867 MidiRubberbandSelectDrag (Editor *, MidiRegionView *);
869 void select_things (int, framepos_t, framepos_t, double, double, bool);
870 void deselect_things ();
873 MidiRegionView* _region_view;
876 /** A RubberbandSelectDrag for selecting MIDI notes but with no horizonal component */
877 class MidiVerticalSelectDrag : public RubberbandSelectDrag
880 MidiVerticalSelectDrag (Editor *, MidiRegionView *);
882 void select_things (int, framepos_t, framepos_t, double, double, bool);
883 void deselect_things ();
886 MidiRegionView* _region_view;
889 /** Region drag in time-FX mode */
890 class TimeFXDrag : public RegionDrag
893 TimeFXDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
895 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
896 void motion (GdkEvent *, bool);
897 void finished (GdkEvent *, bool);
901 /** Scrub drag in audition mode */
902 class ScrubDrag : public Drag
905 ScrubDrag (Editor *, ArdourCanvas::Item *);
907 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
908 void motion (GdkEvent *, bool);
909 void finished (GdkEvent *, bool);
913 /** Drag in range select mode */
914 class SelectionDrag : public Drag
925 SelectionDrag (Editor *, ArdourCanvas::Item *, Operation);
927 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
928 void motion (GdkEvent *, bool);
929 void finished (GdkEvent *, bool);
932 void setup_pointer_frame_offset ();
935 Operation _operation;
938 int _original_pointer_time_axis;
939 int _last_pointer_time_axis;
940 std::list<TimeAxisView*> _added_time_axes;
941 bool _time_selection_at_start;
942 framepos_t start_at_start;
943 framepos_t end_at_start;
946 /** Range marker drag */
947 class RangeMarkerBarDrag : public Drag
952 CreateTransportMarker,
956 RangeMarkerBarDrag (Editor *, ArdourCanvas::Item *, Operation);
958 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
959 void motion (GdkEvent *, bool);
960 void finished (GdkEvent *, bool);
963 bool allow_vertical_autoscroll () const {
967 bool y_movement_matters () const {
972 void update_item (ARDOUR::Location *);
974 Operation _operation;
975 ArdourCanvas::Rectangle* _drag_rect;
979 /** Drag of rectangle to set zoom */
980 class MouseZoomDrag : public Drag
983 MouseZoomDrag (Editor *, ArdourCanvas::Item *);
985 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
986 void motion (GdkEvent *, bool);
987 void finished (GdkEvent *, bool);
990 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
991 return std::make_pair (4, 4);
998 /** Drag of a range of automation data (either on an automation track or region gain),
999 * changing value but not position.
1001 class AutomationRangeDrag : public Drag
1004 AutomationRangeDrag (Editor *, AutomationTimeAxisView *, std::list<ARDOUR::AudioRange> const &);
1005 AutomationRangeDrag (Editor *, AudioRegionView *, std::list<ARDOUR::AudioRange> const &);
1007 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1008 void motion (GdkEvent *, bool);
1009 void finished (GdkEvent *, bool);
1010 void aborted (bool);
1012 bool x_movement_matters () const {
1016 bool active (Editing::MouseMode) {
1021 void setup (std::list<boost::shared_ptr<AutomationLine> > const &);
1022 double y_fraction (boost::shared_ptr<AutomationLine>, double global_y_position) const;
1024 std::list<ARDOUR::AudioRange> _ranges;
1026 /** A line that is part of the drag */
1028 boost::shared_ptr<AutomationLine> line; ///< the line
1029 std::list<ControlPoint*> points; ///< points to drag on the line
1030 std::pair<ARDOUR::framepos_t, ARDOUR::framepos_t> range; ///< the range of all points on the line, in session frames
1031 XMLNode* state; ///< the XML state node before the drag
1032 double original_fraction; ///< initial y-fraction before the drag
1035 std::list<Line> _lines;
1037 bool _nothing_to_drag;
1040 /** Drag of one edge of an xfade
1042 class CrossfadeEdgeDrag : public Drag
1045 CrossfadeEdgeDrag (Editor*, AudioRegionView*, ArdourCanvas::Item*, bool start);
1047 void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
1048 void motion (GdkEvent*, bool);
1049 void finished (GdkEvent*, bool);
1050 void aborted (bool);
1052 bool y_movement_matters () const {
1056 virtual std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1057 return std::make_pair (4, 4);
1061 AudioRegionView* arv;
1065 #endif /* __gtk2_ardour_editor_drag_h_ */