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 /** "Drag" to cut a region (action only on button release) */
444 class RegionCutDrag : public Drag
447 RegionCutDrag (Editor*, ArdourCanvas::Item*, framepos_t);
450 void motion (GdkEvent*, bool);
451 void finished (GdkEvent*, bool);
458 /** Drags to create regions */
459 class RegionCreateDrag : public Drag
462 RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *);
464 void motion (GdkEvent *, bool);
465 void finished (GdkEvent *, bool);
469 MidiTimeAxisView* _view;
470 boost::shared_ptr<ARDOUR::Region> _region;
473 /** Drags to resize MIDI notes */
474 class NoteResizeDrag : public Drag
477 NoteResizeDrag (Editor *, ArdourCanvas::Item *);
479 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
480 void motion (GdkEvent *, bool);
481 void finished (GdkEvent *, bool);
485 MidiRegionView* region;
490 /** Drags to move MIDI notes */
491 class NoteDrag : public Drag
494 NoteDrag (Editor*, ArdourCanvas::Item*);
496 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
497 void motion (GdkEvent *, bool);
498 void finished (GdkEvent *, bool);
503 ARDOUR::frameoffset_t total_dx () const;
504 int8_t total_dy () const;
506 MidiRegionView* _region;
508 double _cumulative_dx;
509 double _cumulative_dy;
514 class NoteCreateDrag : public Drag
517 NoteCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *);
520 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
521 void motion (GdkEvent *, bool);
522 void finished (GdkEvent *, bool);
526 double y_to_region (double) const;
527 framecnt_t grid_frames (framepos_t) const;
529 MidiRegionView* _region_view;
530 ArdourCanvas::Rectangle* _drag_rect;
534 /** Drag to move MIDI patch changes */
535 class PatchChangeDrag : public Drag
538 PatchChangeDrag (Editor *, PatchChange *, MidiRegionView *);
540 void motion (GdkEvent *, bool);
541 void finished (GdkEvent *, bool);
544 bool y_movement_matters () const {
548 void setup_pointer_frame_offset ();
551 MidiRegionView* _region_view;
552 PatchChange* _patch_change;
553 double _cumulative_dx;
556 /** Container for details about audio regions being dragged along with video */
560 AVDraggingView (RegionView *);
562 RegionView* view; ///< the view
563 framepos_t initial_position; ///< initial position of the region
566 /** Drag of video offset */
567 class VideoTimeLineDrag : public Drag
570 VideoTimeLineDrag (Editor *e, ArdourCanvas::Item *i);
572 void motion (GdkEvent *, bool);
573 void finished (GdkEvent *, bool);
574 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
576 bool y_movement_matters () const {
580 bool allow_vertical_autoscroll () const {
587 std::list<AVDraggingView> _views; ///< information about all audio that are being dragged along
590 ARDOUR::frameoffset_t _startdrag_video_offset;
591 ARDOUR::frameoffset_t _max_backwards_drag;
594 /** Drag to trim region(s) */
595 class TrimDrag : public RegionDrag
604 TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &, bool preserve_fade_anchor = false);
606 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
607 void motion (GdkEvent *, bool);
608 void finished (GdkEvent *, bool);
611 bool y_movement_matters () const {
615 void setup_pointer_frame_offset ();
619 Operation _operation;
621 bool _preserve_fade_anchor;
622 bool _jump_position_when_done;
625 /** Meter marker drag */
626 class MeterMarkerDrag : public Drag
629 MeterMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
631 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
632 void motion (GdkEvent *, bool);
633 void finished (GdkEvent *, bool);
636 bool allow_vertical_autoscroll () const {
640 bool y_movement_matters () const {
644 void setup_pointer_frame_offset ();
647 MeterMarker* _marker;
649 XMLNode* before_state;
652 /** Tempo marker drag */
653 class TempoMarkerDrag : public Drag
656 TempoMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
658 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
659 void motion (GdkEvent *, bool);
660 void finished (GdkEvent *, bool);
663 bool allow_vertical_autoscroll () const {
667 bool y_movement_matters () const {
671 void setup_pointer_frame_offset ();
674 TempoMarker* _marker;
676 XMLNode* before_state;
680 /** Drag of the playhead cursor */
681 class CursorDrag : public Drag
684 CursorDrag (Editor *, EditorCursor&, bool);
686 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
687 void motion (GdkEvent *, bool);
688 void finished (GdkEvent *, bool);
691 bool active (Editing::MouseMode) {
695 bool allow_vertical_autoscroll () const {
699 bool y_movement_matters () const {
704 void fake_locate (framepos_t);
706 EditorCursor& _cursor;
707 bool _stop; ///< true to stop the transport on starting the drag, otherwise false
708 double _grab_zoom; ///< editor frames per unit when our grab started
711 /** Region fade-in drag */
712 class FadeInDrag : public RegionDrag
715 FadeInDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
717 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
718 void motion (GdkEvent *, bool);
719 void finished (GdkEvent *, bool);
722 bool y_movement_matters () const {
726 void setup_pointer_frame_offset ();
729 /** Region fade-out drag */
730 class FadeOutDrag : public RegionDrag
733 FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
735 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
736 void motion (GdkEvent *, bool);
737 void finished (GdkEvent *, bool);
740 bool y_movement_matters () const {
744 void setup_pointer_frame_offset ();
748 class MarkerDrag : public Drag
751 MarkerDrag (Editor *, ArdourCanvas::Item *);
754 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
755 void motion (GdkEvent *, bool);
756 void finished (GdkEvent *, bool);
759 bool allow_vertical_autoscroll () const {
763 bool y_movement_matters () const {
767 void setup_pointer_frame_offset ();
770 void update_item (ARDOUR::Location *);
772 Marker* _marker; ///< marker being dragged
774 struct CopiedLocationMarkerInfo {
775 ARDOUR::Location* location;
776 std::vector<Marker*> markers;
778 CopiedLocationMarkerInfo (ARDOUR::Location* l, Marker* m);
781 typedef std::list<CopiedLocationMarkerInfo> CopiedLocationInfo;
782 CopiedLocationInfo _copied_locations;
783 ArdourCanvas::Points _points;
786 /** Control point drag */
787 class ControlPointDrag : public Drag
790 ControlPointDrag (Editor *, ArdourCanvas::Item *);
792 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
793 void motion (GdkEvent *, bool);
794 void finished (GdkEvent *, bool);
797 bool active (Editing::MouseMode m);
801 ControlPoint* _point;
802 double _fixed_grab_x;
803 double _fixed_grab_y;
804 double _cumulative_x_drag;
805 double _cumulative_y_drag;
807 uint32_t _final_index;
808 static double _zero_gain_fraction;
811 /** Gain or automation line drag */
812 class LineDrag : public Drag
815 LineDrag (Editor *e, ArdourCanvas::Item *i);
817 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
818 void motion (GdkEvent *, bool);
819 void finished (GdkEvent *, bool);
822 bool active (Editing::MouseMode) {
828 AutomationLine* _line;
829 double _fixed_grab_x;
830 double _fixed_grab_y;
833 double _cumulative_y_drag;
836 /** Transient feature line drags*/
837 class FeatureLineDrag : public Drag
840 FeatureLineDrag (Editor *e, ArdourCanvas::Item *i);
842 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
843 void motion (GdkEvent *, bool);
844 void finished (GdkEvent *, bool);
847 bool active (Editing::MouseMode) {
853 ArdourCanvas::Line* _line;
854 AudioRegionView* _arv;
856 double _region_view_grab_x;
857 double _cumulative_x_drag;
863 /** Dragging of a rubberband rectangle for selecting things */
864 class RubberbandSelectDrag : public Drag
867 RubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
869 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
870 void motion (GdkEvent *, bool);
871 void finished (GdkEvent *, bool);
874 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
875 return std::make_pair (8, 1);
878 void do_select_things (GdkEvent *, bool);
880 /** Select some things within a rectangle.
881 * @param button_state The button state from the GdkEvent.
882 * @param x1 The left-hand side of the rectangle in session frames.
883 * @param x2 The right-hand side of the rectangle in session frames.
884 * @param y1 The top of the rectangle in trackview coordinates.
885 * @param y2 The bottom of the rectangle in trackview coordinates.
886 * @param drag_in_progress true if the drag is currently happening.
888 virtual void select_things (int button_state, framepos_t x1, framepos_t x2, double y1, double y2, bool drag_in_progress) = 0;
890 virtual void deselect_things () = 0;
896 /** A general editor RubberbandSelectDrag (for regions, automation points etc.) */
897 class EditorRubberbandSelectDrag : public RubberbandSelectDrag
900 EditorRubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
902 void select_things (int, framepos_t, framepos_t, double, double, bool);
903 void deselect_things ();
906 /** A RubberbandSelectDrag for selecting MIDI notes */
907 class MidiRubberbandSelectDrag : public RubberbandSelectDrag
910 MidiRubberbandSelectDrag (Editor *, MidiRegionView *);
912 void select_things (int, framepos_t, framepos_t, double, double, bool);
913 void deselect_things ();
916 MidiRegionView* _region_view;
919 /** A RubberbandSelectDrag for selecting MIDI notes but with no horizonal component */
920 class MidiVerticalSelectDrag : public RubberbandSelectDrag
923 MidiVerticalSelectDrag (Editor *, MidiRegionView *);
925 void select_things (int, framepos_t, framepos_t, double, double, bool);
926 void deselect_things ();
929 MidiRegionView* _region_view;
932 /** Region drag in time-FX mode */
933 class TimeFXDrag : public RegionDrag
936 TimeFXDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
938 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
939 void motion (GdkEvent *, bool);
940 void finished (GdkEvent *, bool);
944 /** Scrub drag in audition mode */
945 class ScrubDrag : public Drag
948 ScrubDrag (Editor *, ArdourCanvas::Item *);
950 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
951 void motion (GdkEvent *, bool);
952 void finished (GdkEvent *, bool);
956 /** Drag in range select mode */
957 class SelectionDrag : public Drag
968 SelectionDrag (Editor *, ArdourCanvas::Item *, Operation);
970 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
971 void motion (GdkEvent *, bool);
972 void finished (GdkEvent *, bool);
975 void setup_pointer_frame_offset ();
978 Operation _operation;
981 int _original_pointer_time_axis;
982 int _last_pointer_time_axis;
983 std::list<TimeAxisView*> _added_time_axes;
984 bool _time_selection_at_start;
985 framepos_t start_at_start;
986 framepos_t end_at_start;
989 /** Range marker drag */
990 class RangeMarkerBarDrag : public Drag
995 CreateTransportMarker,
999 RangeMarkerBarDrag (Editor *, ArdourCanvas::Item *, Operation);
1001 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1002 void motion (GdkEvent *, bool);
1003 void finished (GdkEvent *, bool);
1004 void aborted (bool);
1006 bool allow_vertical_autoscroll () const {
1010 bool y_movement_matters () const {
1015 void update_item (ARDOUR::Location *);
1017 Operation _operation;
1018 ArdourCanvas::Rectangle* _drag_rect;
1022 /** Drag of rectangle to set zoom */
1023 class MouseZoomDrag : public Drag
1026 MouseZoomDrag (Editor *, ArdourCanvas::Item *);
1028 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1029 void motion (GdkEvent *, bool);
1030 void finished (GdkEvent *, bool);
1031 void aborted (bool);
1033 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1034 return std::make_pair (4, 4);
1041 /** Drag of a range of automation data (either on an automation track or region gain),
1042 * changing value but not position.
1044 class AutomationRangeDrag : public Drag
1047 AutomationRangeDrag (Editor *, AutomationTimeAxisView *, std::list<ARDOUR::AudioRange> const &);
1048 AutomationRangeDrag (Editor *, AudioRegionView *, std::list<ARDOUR::AudioRange> const &);
1050 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1051 void motion (GdkEvent *, bool);
1052 void finished (GdkEvent *, bool);
1053 void aborted (bool);
1055 bool x_movement_matters () const {
1059 bool active (Editing::MouseMode) {
1064 void setup (std::list<boost::shared_ptr<AutomationLine> > const &);
1065 double y_fraction (boost::shared_ptr<AutomationLine>, double global_y_position) const;
1067 std::list<ARDOUR::AudioRange> _ranges;
1069 /** A line that is part of the drag */
1071 boost::shared_ptr<AutomationLine> line; ///< the line
1072 std::list<ControlPoint*> points; ///< points to drag on the line
1073 std::pair<ARDOUR::framepos_t, ARDOUR::framepos_t> range; ///< the range of all points on the line, in session frames
1074 XMLNode* state; ///< the XML state node before the drag
1075 double original_fraction; ///< initial y-fraction before the drag
1078 std::list<Line> _lines;
1080 bool _nothing_to_drag;
1083 /** Drag of one edge of an xfade
1085 class CrossfadeEdgeDrag : public Drag
1088 CrossfadeEdgeDrag (Editor*, AudioRegionView*, ArdourCanvas::Item*, bool start);
1090 void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
1091 void motion (GdkEvent*, bool);
1092 void finished (GdkEvent*, bool);
1093 void aborted (bool);
1095 bool y_movement_matters () const {
1099 virtual std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1100 return std::make_pair (4, 4);
1104 AudioRegionView* arv;
1108 #endif /* __gtk2_ardour_editor_drag_h_ */