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 virtual 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;
354 void add_stateful_diff_commands_for_playlists (PlaylistSet const &);
357 void finished_no_copy (
360 ARDOUR::framecnt_t const
366 ARDOUR::framecnt_t const
369 RegionView* insert_region_into_playlist (
370 boost::shared_ptr<ARDOUR::Region>,
377 void remove_region_from_playlist (
378 boost::shared_ptr<ARDOUR::Region>,
379 boost::shared_ptr<ARDOUR::Playlist>,
380 PlaylistSet& modified_playlists
384 void collect_new_region_view (RegionView *);
385 RouteTimeAxisView* create_destination_time_axis (boost::shared_ptr<ARDOUR::Region>, TimeAxisView* original);
388 RegionView* _new_region_view;
391 /** Drag to insert a region from somewhere */
392 class RegionInsertDrag : public RegionMotionDrag
395 RegionInsertDrag (Editor *, boost::shared_ptr<ARDOUR::Region>, RouteTimeAxisView*, ARDOUR::framepos_t);
397 void finished (GdkEvent *, bool);
400 bool regions_came_from_canvas () const {
405 /** Region drag in splice mode */
406 class RegionSpliceDrag : public RegionMoveDrag
409 RegionSpliceDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
411 void motion (GdkEvent *, bool);
412 void finished (GdkEvent *, bool);
416 /** Region drag in ripple mode */
418 class RegionRippleDrag : public RegionMoveDrag
421 RegionRippleDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
422 ~RegionRippleDrag () { delete exclude; }
424 void motion (GdkEvent *, bool);
425 void finished (GdkEvent *, bool);
428 bool y_movement_allowed (int delta_track, double delta_layer) const;
431 TimeAxisView *prev_tav; // where regions were most recently dragged from
432 TimeAxisView *orig_tav; // where drag started
433 framecnt_t prev_amount;
434 framepos_t prev_position;
435 framecnt_t selection_length;
436 bool allow_moves_across_tracks; // only if all selected regions are on one track
437 ARDOUR::RegionList *exclude;
438 void add_all_after_to_views (TimeAxisView *tav, framepos_t where, const RegionSelection &exclude, bool drag_in_progress);
439 void remove_unselected_from_views (framecnt_t amount, bool move_regions);
443 /** Drags to create regions */
444 class RegionCreateDrag : public Drag
447 RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *);
449 void motion (GdkEvent *, bool);
450 void finished (GdkEvent *, bool);
454 MidiTimeAxisView* _view;
455 boost::shared_ptr<ARDOUR::Region> _region;
458 /** Drags to resize MIDI notes */
459 class NoteResizeDrag : public Drag
462 NoteResizeDrag (Editor *, ArdourCanvas::Item *);
464 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
465 void motion (GdkEvent *, bool);
466 void finished (GdkEvent *, bool);
470 MidiRegionView* region;
475 /** Drags to move MIDI notes */
476 class NoteDrag : public Drag
479 NoteDrag (Editor*, ArdourCanvas::Item*);
481 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
482 void motion (GdkEvent *, bool);
483 void finished (GdkEvent *, bool);
488 ARDOUR::frameoffset_t total_dx () const;
489 int8_t total_dy () const;
491 MidiRegionView* _region;
493 double _cumulative_dx;
494 double _cumulative_dy;
499 class NoteCreateDrag : public Drag
502 NoteCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *);
505 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
506 void motion (GdkEvent *, bool);
507 void finished (GdkEvent *, bool);
511 double y_to_region (double) const;
512 framecnt_t grid_frames (framepos_t) const;
514 MidiRegionView* _region_view;
515 ArdourCanvas::Rectangle* _drag_rect;
519 /** Drag to move MIDI patch changes */
520 class PatchChangeDrag : public Drag
523 PatchChangeDrag (Editor *, PatchChange *, MidiRegionView *);
525 void motion (GdkEvent *, bool);
526 void finished (GdkEvent *, bool);
529 bool y_movement_matters () const {
533 void setup_pointer_frame_offset ();
536 MidiRegionView* _region_view;
537 PatchChange* _patch_change;
538 double _cumulative_dx;
541 /** Container for details about audio regions being dragged along with video */
545 AVDraggingView (RegionView *);
547 RegionView* view; ///< the view
548 framepos_t initial_position; ///< initial position of the region
551 /** Drag of video offset */
552 class VideoTimeLineDrag : public Drag
555 VideoTimeLineDrag (Editor *e, ArdourCanvas::Item *i);
557 void motion (GdkEvent *, bool);
558 void finished (GdkEvent *, bool);
559 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
561 bool y_movement_matters () const {
565 bool allow_vertical_autoscroll () const {
572 std::list<AVDraggingView> _views; ///< information about all audio that are being dragged along
575 ARDOUR::frameoffset_t _startdrag_video_offset;
576 ARDOUR::frameoffset_t _max_backwards_drag;
579 /** Drag to trim region(s) */
580 class TrimDrag : public RegionDrag
589 TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &, bool preserve_fade_anchor = false);
591 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
592 void motion (GdkEvent *, bool);
593 void finished (GdkEvent *, bool);
596 bool y_movement_matters () const {
600 void setup_pointer_frame_offset ();
604 Operation _operation;
606 bool _preserve_fade_anchor;
607 bool _jump_position_when_done;
610 /** Meter marker drag */
611 class MeterMarkerDrag : public Drag
614 MeterMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
616 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
617 void motion (GdkEvent *, bool);
618 void finished (GdkEvent *, bool);
621 bool allow_vertical_autoscroll () const {
625 bool y_movement_matters () const {
629 void setup_pointer_frame_offset ();
632 MeterMarker* _marker;
634 XMLNode* before_state;
637 /** Tempo marker drag */
638 class TempoMarkerDrag : public Drag
641 TempoMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
643 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
644 void motion (GdkEvent *, bool);
645 void finished (GdkEvent *, bool);
648 bool allow_vertical_autoscroll () const {
652 bool y_movement_matters () const {
656 void setup_pointer_frame_offset ();
659 TempoMarker* _marker;
661 XMLNode* before_state;
665 /** Drag of the playhead cursor */
666 class CursorDrag : public Drag
669 CursorDrag (Editor *, EditorCursor&, bool);
671 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
672 void motion (GdkEvent *, bool);
673 void finished (GdkEvent *, bool);
676 bool active (Editing::MouseMode) {
680 bool allow_vertical_autoscroll () const {
684 bool y_movement_matters () const {
689 void fake_locate (framepos_t);
691 EditorCursor& _cursor;
692 bool _stop; ///< true to stop the transport on starting the drag, otherwise false
693 double _grab_zoom; ///< editor frames per unit when our grab started
696 /** Region fade-in drag */
697 class FadeInDrag : public RegionDrag
700 FadeInDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
702 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
703 void motion (GdkEvent *, bool);
704 void finished (GdkEvent *, bool);
707 bool y_movement_matters () const {
711 void setup_pointer_frame_offset ();
714 /** Region fade-out drag */
715 class FadeOutDrag : public RegionDrag
718 FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
720 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
721 void motion (GdkEvent *, bool);
722 void finished (GdkEvent *, bool);
725 bool y_movement_matters () const {
729 void setup_pointer_frame_offset ();
733 class MarkerDrag : public Drag
736 MarkerDrag (Editor *, ArdourCanvas::Item *);
739 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
740 void motion (GdkEvent *, bool);
741 void finished (GdkEvent *, bool);
744 bool allow_vertical_autoscroll () const {
748 bool y_movement_matters () const {
752 void setup_pointer_frame_offset ();
755 void update_item (ARDOUR::Location *);
757 Marker* _marker; ///< marker being dragged
759 struct CopiedLocationMarkerInfo {
760 ARDOUR::Location* location;
761 std::vector<Marker*> markers;
763 CopiedLocationMarkerInfo (ARDOUR::Location* l, Marker* m);
766 typedef std::list<CopiedLocationMarkerInfo> CopiedLocationInfo;
767 CopiedLocationInfo _copied_locations;
768 ArdourCanvas::Points _points;
771 /** Control point drag */
772 class ControlPointDrag : public Drag
775 ControlPointDrag (Editor *, ArdourCanvas::Item *);
777 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
778 void motion (GdkEvent *, bool);
779 void finished (GdkEvent *, bool);
782 bool active (Editing::MouseMode m);
786 ControlPoint* _point;
787 double _fixed_grab_x;
788 double _fixed_grab_y;
789 double _cumulative_x_drag;
790 double _cumulative_y_drag;
792 uint32_t _final_index;
793 static double _zero_gain_fraction;
796 /** Gain or automation line drag */
797 class LineDrag : public Drag
800 LineDrag (Editor *e, ArdourCanvas::Item *i);
802 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
803 void motion (GdkEvent *, bool);
804 void finished (GdkEvent *, bool);
807 bool active (Editing::MouseMode) {
813 AutomationLine* _line;
814 double _fixed_grab_x;
815 double _fixed_grab_y;
818 double _cumulative_y_drag;
821 /** Transient feature line drags*/
822 class FeatureLineDrag : public Drag
825 FeatureLineDrag (Editor *e, ArdourCanvas::Item *i);
827 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
828 void motion (GdkEvent *, bool);
829 void finished (GdkEvent *, bool);
832 bool active (Editing::MouseMode) {
838 ArdourCanvas::Line* _line;
839 AudioRegionView* _arv;
841 double _region_view_grab_x;
842 double _cumulative_x_drag;
848 /** Dragging of a rubberband rectangle for selecting things */
849 class RubberbandSelectDrag : public Drag
852 RubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
854 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
855 void motion (GdkEvent *, bool);
856 void finished (GdkEvent *, bool);
859 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
860 return std::make_pair (8, 1);
863 void do_select_things (GdkEvent *, bool);
865 /** Select some things within a rectangle.
866 * @param button_state The button state from the GdkEvent.
867 * @param x1 The left-hand side of the rectangle in session frames.
868 * @param x2 The right-hand side of the rectangle in session frames.
869 * @param y1 The top of the rectangle in trackview coordinates.
870 * @param y2 The bottom of the rectangle in trackview coordinates.
871 * @param drag_in_progress true if the drag is currently happening.
873 virtual void select_things (int button_state, framepos_t x1, framepos_t x2, double y1, double y2, bool drag_in_progress) = 0;
875 virtual void deselect_things () = 0;
881 /** A general editor RubberbandSelectDrag (for regions, automation points etc.) */
882 class EditorRubberbandSelectDrag : public RubberbandSelectDrag
885 EditorRubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
887 void select_things (int, framepos_t, framepos_t, double, double, bool);
888 void deselect_things ();
891 /** A RubberbandSelectDrag for selecting MIDI notes */
892 class MidiRubberbandSelectDrag : public RubberbandSelectDrag
895 MidiRubberbandSelectDrag (Editor *, MidiRegionView *);
897 void select_things (int, framepos_t, framepos_t, double, double, bool);
898 void deselect_things ();
901 MidiRegionView* _region_view;
904 /** A RubberbandSelectDrag for selecting MIDI notes but with no horizonal component */
905 class MidiVerticalSelectDrag : public RubberbandSelectDrag
908 MidiVerticalSelectDrag (Editor *, MidiRegionView *);
910 void select_things (int, framepos_t, framepos_t, double, double, bool);
911 void deselect_things ();
914 MidiRegionView* _region_view;
917 /** Region drag in time-FX mode */
918 class TimeFXDrag : public RegionDrag
921 TimeFXDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
923 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
924 void motion (GdkEvent *, bool);
925 void finished (GdkEvent *, bool);
929 /** Scrub drag in audition mode */
930 class ScrubDrag : public Drag
933 ScrubDrag (Editor *, ArdourCanvas::Item *);
935 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
936 void motion (GdkEvent *, bool);
937 void finished (GdkEvent *, bool);
941 /** Drag in range select mode */
942 class SelectionDrag : public Drag
953 SelectionDrag (Editor *, ArdourCanvas::Item *, Operation);
955 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
956 void motion (GdkEvent *, bool);
957 void finished (GdkEvent *, bool);
960 void setup_pointer_frame_offset ();
963 Operation _operation;
966 int _original_pointer_time_axis;
967 int _last_pointer_time_axis;
968 std::list<TimeAxisView*> _added_time_axes;
969 bool _time_selection_at_start;
970 framepos_t start_at_start;
971 framepos_t end_at_start;
974 /** Range marker drag */
975 class RangeMarkerBarDrag : public Drag
980 CreateTransportMarker,
984 RangeMarkerBarDrag (Editor *, ArdourCanvas::Item *, Operation);
986 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
987 void motion (GdkEvent *, bool);
988 void finished (GdkEvent *, bool);
991 bool allow_vertical_autoscroll () const {
995 bool y_movement_matters () const {
1000 void update_item (ARDOUR::Location *);
1002 Operation _operation;
1003 ArdourCanvas::Rectangle* _drag_rect;
1007 /** Drag of rectangle to set zoom */
1008 class MouseZoomDrag : public Drag
1011 MouseZoomDrag (Editor *, ArdourCanvas::Item *);
1013 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1014 void motion (GdkEvent *, bool);
1015 void finished (GdkEvent *, bool);
1016 void aborted (bool);
1018 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1019 return std::make_pair (4, 4);
1026 /** Drag of a range of automation data (either on an automation track or region gain),
1027 * changing value but not position.
1029 class AutomationRangeDrag : public Drag
1032 AutomationRangeDrag (Editor *, AutomationTimeAxisView *, std::list<ARDOUR::AudioRange> const &);
1033 AutomationRangeDrag (Editor *, AudioRegionView *, std::list<ARDOUR::AudioRange> const &);
1035 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1036 void motion (GdkEvent *, bool);
1037 void finished (GdkEvent *, bool);
1038 void aborted (bool);
1040 bool x_movement_matters () const {
1044 bool active (Editing::MouseMode) {
1049 void setup (std::list<boost::shared_ptr<AutomationLine> > const &);
1050 double y_fraction (boost::shared_ptr<AutomationLine>, double global_y_position) const;
1052 std::list<ARDOUR::AudioRange> _ranges;
1054 /** A line that is part of the drag */
1056 boost::shared_ptr<AutomationLine> line; ///< the line
1057 std::list<ControlPoint*> points; ///< points to drag on the line
1058 std::pair<ARDOUR::framepos_t, ARDOUR::framepos_t> range; ///< the range of all points on the line, in session frames
1059 XMLNode* state; ///< the XML state node before the drag
1060 double original_fraction; ///< initial y-fraction before the drag
1063 std::list<Line> _lines;
1065 bool _nothing_to_drag;
1068 /** Drag of one edge of an xfade
1070 class CrossfadeEdgeDrag : public Drag
1073 CrossfadeEdgeDrag (Editor*, AudioRegionView*, ArdourCanvas::Item*, bool start);
1075 void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
1076 void motion (GdkEvent*, bool);
1077 void finished (GdkEvent*, bool);
1078 void aborted (bool);
1080 bool y_movement_matters () const {
1084 virtual std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1085 return std::make_pair (4, 4);
1089 AudioRegionView* arv;
1093 #endif /* __gtk2_ardour_editor_drag_h_ */