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_x () const;
215 double current_pointer_y () const;
217 boost::shared_ptr<ARDOUR::Region> add_midi_region (MidiTimeAxisView*);
219 void show_verbose_cursor_time (framepos_t);
220 void show_verbose_cursor_duration (framepos_t, framepos_t, double xoffset = 0);
221 void show_verbose_cursor_text (std::string const &);
223 Editor* _editor; ///< our editor
225 ArdourCanvas::Item* _item; ///< our item
226 /** Offset from the mouse's position for the drag to the start of the thing that is being dragged */
227 ARDOUR::framecnt_t _pointer_frame_offset;
228 bool _x_constrained; ///< true if x motion is constrained, otherwise false
229 bool _y_constrained; ///< true if y motion is constrained, otherwise false
230 bool _was_rolling; ///< true if the session was rolling before the drag started, otherwise false
233 bool _trackview_only; ///< true if pointer y value should always be relative to the top of the trackview group
234 bool _move_threshold_passed; ///< true if the move threshold has been passed, otherwise false
235 bool _was_double_click; ///< true if drag initiated by a double click event
236 double _grab_x; ///< trackview x of the grab start position
237 double _grab_y; ///< y of the grab start position, possibly adjusted if _trackview_only is true
238 double _last_pointer_x; ///< trackview x of the pointer last time a motion occurred
239 double _last_pointer_y; ///< trackview y of the pointer last time a motion occurred
240 ARDOUR::framepos_t _raw_grab_frame; ///< unsnapped frame that the mouse was at when start_grab was called, or 0
241 ARDOUR::framepos_t _grab_frame; ///< adjusted_frame that the mouse was at when start_grab was called, or 0
242 ARDOUR::framepos_t _last_pointer_frame; ///< adjusted_frame the last time a motion occurred
247 /** Container for details about a region being dragged */
251 DraggingView (RegionView *, RegionDrag *, TimeAxisView* original_tav);
253 RegionView* view; ///< the view
254 /** index into RegionDrag::_time_axis_views of the view that this region is currently being displayed on,
255 * or -1 if it is not visible.
258 /** layer that this region is currently being displayed on. This is a double
259 rather than a layer_t as we use fractional layers during drags to allow the user
260 to indicate a new layer to put a region on.
263 double initial_y; ///< the initial y position of the view before any reparenting
264 framepos_t initial_position; ///< initial position of the region
265 framepos_t initial_end; ///< initial end position of the region
266 framepos_t anchored_fade_length; ///< fade_length when anchored during drag
267 boost::shared_ptr<ARDOUR::Playlist> initial_playlist;
268 TimeAxisView* initial_time_axis_view;
271 /** Abstract base class for drags that involve region(s) */
272 class RegionDrag : public Drag, public sigc::trackable
275 RegionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
276 virtual ~RegionDrag () {}
280 RegionView* _primary; ///< the view that was clicked on (or whatever) to start the drag
281 std::list<DraggingView> _views; ///< information about all views that are being dragged
283 /** a list of the non-hidden TimeAxisViews sorted by editor order key */
284 std::vector<TimeAxisView*> _time_axis_views;
285 int find_time_axis_view (TimeAxisView *) const;
290 friend class DraggingView;
294 void region_going_away (RegionView *);
295 PBD::ScopedConnection death_connection;
299 /** Drags involving region motion from somewhere */
300 class RegionMotionDrag : public RegionDrag
304 RegionMotionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool);
305 virtual ~RegionMotionDrag () {}
307 virtual void start_grab (GdkEvent *, Gdk::Cursor *);
308 virtual void motion (GdkEvent *, bool);
309 virtual void finished (GdkEvent *, bool);
310 virtual void aborted (bool);
312 /** @return true if the regions being `moved' came from somewhere on the canvas;
313 * false if they came from outside (e.g. from the region list).
315 virtual bool regions_came_from_canvas () const = 0;
319 double compute_x_delta (GdkEvent const *, ARDOUR::framepos_t *);
320 virtual bool y_movement_allowed (int, double) const;
323 ARDOUR::framepos_t _last_frame_position; ///< last position of the thing being dragged
324 double _total_x_delta;
325 int _last_pointer_time_axis_view;
326 double _last_pointer_layer;
330 /** Drags to move (or copy) regions that are already shown in the GUI to
331 * somewhere different.
333 class RegionMoveDrag : public RegionMotionDrag
336 RegionMoveDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool, bool);
337 virtual ~RegionMoveDrag () {}
339 void motion (GdkEvent *, bool);
340 void finished (GdkEvent *, bool);
343 bool regions_came_from_canvas () const {
347 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
348 return std::make_pair (4, 4);
351 void setup_pointer_frame_offset ();
354 typedef std::set<boost::shared_ptr<ARDOUR::Playlist> > PlaylistSet;
355 void add_stateful_diff_commands_for_playlists (PlaylistSet const &);
358 void finished_no_copy (
361 ARDOUR::framecnt_t const
367 ARDOUR::framecnt_t const
370 RegionView* insert_region_into_playlist (
371 boost::shared_ptr<ARDOUR::Region>,
378 void remove_region_from_playlist (
379 boost::shared_ptr<ARDOUR::Region>,
380 boost::shared_ptr<ARDOUR::Playlist>,
381 PlaylistSet& modified_playlists
385 void collect_new_region_view (RegionView *);
386 RouteTimeAxisView* create_destination_time_axis (boost::shared_ptr<ARDOUR::Region>, TimeAxisView* original);
389 RegionView* _new_region_view;
392 /** Drag to insert a region from somewhere */
393 class RegionInsertDrag : public RegionMotionDrag
396 RegionInsertDrag (Editor *, boost::shared_ptr<ARDOUR::Region>, RouteTimeAxisView*, ARDOUR::framepos_t);
398 void finished (GdkEvent *, bool);
401 bool regions_came_from_canvas () const {
406 /** Region drag in splice mode */
407 class RegionSpliceDrag : public RegionMoveDrag
410 RegionSpliceDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
412 void motion (GdkEvent *, bool);
413 void finished (GdkEvent *, bool);
417 /** Region drag in ripple mode */
419 class RegionRippleDrag : public RegionMoveDrag
422 RegionRippleDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
423 ~RegionRippleDrag () { delete exclude; }
425 void motion (GdkEvent *, bool);
426 void finished (GdkEvent *, bool);
429 bool y_movement_allowed (int delta_track, double delta_layer) const;
432 TimeAxisView *prev_tav; // where regions were most recently dragged from
433 TimeAxisView *orig_tav; // where drag started
434 framecnt_t prev_amount;
435 framepos_t prev_position;
436 framecnt_t selection_length;
437 bool allow_moves_across_tracks; // only if all selected regions are on one track
438 ARDOUR::RegionList *exclude;
439 void add_all_after_to_views (TimeAxisView *tav, framepos_t where, const RegionSelection &exclude, bool drag_in_progress);
440 void remove_unselected_from_views (framecnt_t amount, bool move_regions);
444 /** "Drag" to cut a region (action only on button release) */
445 class RegionCutDrag : public Drag
448 RegionCutDrag (Editor*, ArdourCanvas::Item*, framepos_t);
451 void motion (GdkEvent*, bool);
452 void finished (GdkEvent*, bool);
459 /** Drags to create regions */
460 class RegionCreateDrag : public Drag
463 RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *);
465 void motion (GdkEvent *, bool);
466 void finished (GdkEvent *, bool);
470 MidiTimeAxisView* _view;
471 boost::shared_ptr<ARDOUR::Region> _region;
474 /** Drags to resize MIDI notes */
475 class NoteResizeDrag : public Drag
478 NoteResizeDrag (Editor *, ArdourCanvas::Item *);
480 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
481 void motion (GdkEvent *, bool);
482 void finished (GdkEvent *, bool);
486 MidiRegionView* region;
491 /** Drags to move MIDI notes */
492 class NoteDrag : public Drag
495 NoteDrag (Editor*, ArdourCanvas::Item*);
497 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
498 void motion (GdkEvent *, bool);
499 void finished (GdkEvent *, bool);
504 ARDOUR::frameoffset_t total_dx () const;
505 int8_t total_dy () const;
507 MidiRegionView* _region;
509 double _cumulative_dx;
510 double _cumulative_dy;
515 class NoteCreateDrag : public Drag
518 NoteCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *);
521 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
522 void motion (GdkEvent *, bool);
523 void finished (GdkEvent *, bool);
527 double y_to_region (double) const;
528 framecnt_t grid_frames (framepos_t) const;
530 MidiRegionView* _region_view;
531 ArdourCanvas::Rectangle* _drag_rect;
535 /** Drag to move MIDI patch changes */
536 class PatchChangeDrag : public Drag
539 PatchChangeDrag (Editor *, PatchChange *, MidiRegionView *);
541 void motion (GdkEvent *, bool);
542 void finished (GdkEvent *, bool);
545 bool y_movement_matters () const {
549 void setup_pointer_frame_offset ();
552 MidiRegionView* _region_view;
553 PatchChange* _patch_change;
554 double _cumulative_dx;
557 /** Container for details about audio regions being dragged along with video */
561 AVDraggingView (RegionView *);
563 RegionView* view; ///< the view
564 framepos_t initial_position; ///< initial position of the region
567 /** Drag of video offset */
568 class VideoTimeLineDrag : public Drag
571 VideoTimeLineDrag (Editor *e, ArdourCanvas::Item *i);
573 void motion (GdkEvent *, bool);
574 void finished (GdkEvent *, bool);
575 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
577 bool y_movement_matters () const {
581 bool allow_vertical_autoscroll () const {
588 std::list<AVDraggingView> _views; ///< information about all audio that are being dragged along
591 ARDOUR::frameoffset_t _startdrag_video_offset;
592 ARDOUR::frameoffset_t _max_backwards_drag;
595 /** Drag to trim region(s) */
596 class TrimDrag : public RegionDrag
605 TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &, bool preserve_fade_anchor = false);
607 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
608 void motion (GdkEvent *, bool);
609 void finished (GdkEvent *, bool);
612 bool y_movement_matters () const {
616 void setup_pointer_frame_offset ();
620 Operation _operation;
622 bool _preserve_fade_anchor;
623 bool _jump_position_when_done;
626 /** Meter marker drag */
627 class MeterMarkerDrag : public Drag
630 MeterMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
632 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
633 void motion (GdkEvent *, bool);
634 void finished (GdkEvent *, bool);
637 bool allow_vertical_autoscroll () const {
641 bool y_movement_matters () const {
645 void setup_pointer_frame_offset ();
648 MeterMarker* _marker;
650 XMLNode* before_state;
653 /** Tempo marker drag */
654 class TempoMarkerDrag : public Drag
657 TempoMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
659 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
660 void motion (GdkEvent *, bool);
661 void finished (GdkEvent *, bool);
664 bool allow_vertical_autoscroll () const {
668 bool y_movement_matters () const {
672 void setup_pointer_frame_offset ();
675 TempoMarker* _marker;
677 XMLNode* before_state;
681 /** Drag of the playhead cursor */
682 class CursorDrag : public Drag
685 CursorDrag (Editor *, EditorCursor&, bool);
687 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
688 void motion (GdkEvent *, bool);
689 void finished (GdkEvent *, bool);
692 bool active (Editing::MouseMode) {
696 bool allow_vertical_autoscroll () const {
700 bool y_movement_matters () const {
705 void fake_locate (framepos_t);
707 EditorCursor& _cursor;
708 bool _stop; ///< true to stop the transport on starting the drag, otherwise false
709 double _grab_zoom; ///< editor frames per unit when our grab started
712 /** Region fade-in drag */
713 class FadeInDrag : public RegionDrag
716 FadeInDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
718 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
719 void motion (GdkEvent *, bool);
720 void finished (GdkEvent *, bool);
723 bool y_movement_matters () const {
727 void setup_pointer_frame_offset ();
730 /** Region fade-out drag */
731 class FadeOutDrag : public RegionDrag
734 FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
736 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
737 void motion (GdkEvent *, bool);
738 void finished (GdkEvent *, bool);
741 bool y_movement_matters () const {
745 void setup_pointer_frame_offset ();
749 class MarkerDrag : public Drag
752 MarkerDrag (Editor *, ArdourCanvas::Item *);
755 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
756 void motion (GdkEvent *, bool);
757 void finished (GdkEvent *, bool);
760 bool allow_vertical_autoscroll () const {
764 bool y_movement_matters () const {
768 void setup_pointer_frame_offset ();
771 void update_item (ARDOUR::Location *);
773 Marker* _marker; ///< marker being dragged
775 struct CopiedLocationMarkerInfo {
776 ARDOUR::Location* location;
777 std::vector<Marker*> markers;
779 CopiedLocationMarkerInfo (ARDOUR::Location* l, Marker* m);
782 typedef std::list<CopiedLocationMarkerInfo> CopiedLocationInfo;
783 CopiedLocationInfo _copied_locations;
784 ArdourCanvas::Points _points;
787 /** Control point drag */
788 class ControlPointDrag : public Drag
791 ControlPointDrag (Editor *, ArdourCanvas::Item *);
793 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
794 void motion (GdkEvent *, bool);
795 void finished (GdkEvent *, bool);
798 bool active (Editing::MouseMode m);
802 ControlPoint* _point;
803 double _fixed_grab_x;
804 double _fixed_grab_y;
805 double _cumulative_x_drag;
806 double _cumulative_y_drag;
808 uint32_t _final_index;
809 static double _zero_gain_fraction;
812 /** Gain or automation line drag */
813 class LineDrag : public Drag
816 LineDrag (Editor *e, ArdourCanvas::Item *i);
818 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
819 void motion (GdkEvent *, bool);
820 void finished (GdkEvent *, bool);
823 bool active (Editing::MouseMode) {
829 AutomationLine* _line;
830 double _fixed_grab_x;
831 double _fixed_grab_y;
832 double _cumulative_y_drag;
835 /** Transient feature line drags*/
836 class FeatureLineDrag : public Drag
839 FeatureLineDrag (Editor *e, ArdourCanvas::Item *i);
841 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
842 void motion (GdkEvent *, bool);
843 void finished (GdkEvent *, bool);
846 bool active (Editing::MouseMode) {
852 ArdourCanvas::Line* _line;
853 AudioRegionView* _arv;
855 double _region_view_grab_x;
856 double _cumulative_x_drag;
862 /** Dragging of a rubberband rectangle for selecting things */
863 class RubberbandSelectDrag : public Drag
866 RubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
868 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
869 void motion (GdkEvent *, bool);
870 void finished (GdkEvent *, bool);
873 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
874 return std::make_pair (8, 1);
877 void do_select_things (GdkEvent *, bool);
879 /** Select some things within a rectangle.
880 * @param button_state The button state from the GdkEvent.
881 * @param x1 The left-hand side of the rectangle in session frames.
882 * @param x2 The right-hand side of the rectangle in session frames.
883 * @param y1 The top of the rectangle in trackview coordinates.
884 * @param y2 The bottom of the rectangle in trackview coordinates.
885 * @param drag_in_progress true if the drag is currently happening.
887 virtual void select_things (int button_state, framepos_t x1, framepos_t x2, double y1, double y2, bool drag_in_progress) = 0;
889 virtual void deselect_things () = 0;
895 /** A general editor RubberbandSelectDrag (for regions, automation points etc.) */
896 class EditorRubberbandSelectDrag : public RubberbandSelectDrag
899 EditorRubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
901 void select_things (int, framepos_t, framepos_t, double, double, bool);
902 void deselect_things ();
905 /** A RubberbandSelectDrag for selecting MIDI notes */
906 class MidiRubberbandSelectDrag : public RubberbandSelectDrag
909 MidiRubberbandSelectDrag (Editor *, MidiRegionView *);
911 void select_things (int, framepos_t, framepos_t, double, double, bool);
912 void deselect_things ();
915 MidiRegionView* _region_view;
918 /** A RubberbandSelectDrag for selecting MIDI notes but with no horizonal component */
919 class MidiVerticalSelectDrag : public RubberbandSelectDrag
922 MidiVerticalSelectDrag (Editor *, MidiRegionView *);
924 void select_things (int, framepos_t, framepos_t, double, double, bool);
925 void deselect_things ();
928 MidiRegionView* _region_view;
931 /** Region drag in time-FX mode */
932 class TimeFXDrag : public RegionDrag
935 TimeFXDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
937 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
938 void motion (GdkEvent *, bool);
939 void finished (GdkEvent *, bool);
943 /** Scrub drag in audition mode */
944 class ScrubDrag : public Drag
947 ScrubDrag (Editor *, ArdourCanvas::Item *);
949 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
950 void motion (GdkEvent *, bool);
951 void finished (GdkEvent *, bool);
955 /** Drag in range select mode */
956 class SelectionDrag : public Drag
967 SelectionDrag (Editor *, ArdourCanvas::Item *, Operation);
969 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
970 void motion (GdkEvent *, bool);
971 void finished (GdkEvent *, bool);
974 void setup_pointer_frame_offset ();
977 Operation _operation;
979 int _original_pointer_time_axis;
980 std::list<TimeAxisView*> _added_time_axes;
981 bool _time_selection_at_start;
982 framepos_t start_at_start;
983 framepos_t end_at_start;
986 /** Range marker drag */
987 class RangeMarkerBarDrag : public Drag
993 CreateTransportMarker,
997 RangeMarkerBarDrag (Editor *, ArdourCanvas::Item *, Operation);
999 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1000 void motion (GdkEvent *, bool);
1001 void finished (GdkEvent *, bool);
1002 void aborted (bool);
1004 bool allow_vertical_autoscroll () const {
1008 bool y_movement_matters () const {
1013 void update_item (ARDOUR::Location *);
1015 Operation _operation;
1016 ArdourCanvas::Rectangle* _drag_rect;
1020 /** Drag of rectangle to set zoom */
1021 class MouseZoomDrag : public Drag
1024 MouseZoomDrag (Editor *, ArdourCanvas::Item *);
1026 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1027 void motion (GdkEvent *, bool);
1028 void finished (GdkEvent *, bool);
1029 void aborted (bool);
1031 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1032 return std::make_pair (4, 4);
1039 /** Drag of a range of automation data (either on an automation track or region gain),
1040 * changing value but not position.
1042 class AutomationRangeDrag : public Drag
1045 AutomationRangeDrag (Editor *, AutomationTimeAxisView *, std::list<ARDOUR::AudioRange> const &);
1046 AutomationRangeDrag (Editor *, AudioRegionView *, std::list<ARDOUR::AudioRange> const &);
1048 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1049 void motion (GdkEvent *, bool);
1050 void finished (GdkEvent *, bool);
1051 void aborted (bool);
1053 bool x_movement_matters () const {
1057 bool active (Editing::MouseMode) {
1062 void setup (std::list<boost::shared_ptr<AutomationLine> > const &);
1063 double y_fraction (boost::shared_ptr<AutomationLine>, double global_y_position) const;
1065 std::list<ARDOUR::AudioRange> _ranges;
1067 /** A line that is part of the drag */
1069 boost::shared_ptr<AutomationLine> line; ///< the line
1070 std::list<ControlPoint*> points; ///< points to drag on the line
1071 std::pair<ARDOUR::framepos_t, ARDOUR::framepos_t> range; ///< the range of all points on the line, in session frames
1072 XMLNode* state; ///< the XML state node before the drag
1073 double original_fraction; ///< initial y-fraction before the drag
1076 std::list<Line> _lines;
1078 bool _nothing_to_drag;
1081 /** Drag of one edge of an xfade
1083 class CrossfadeEdgeDrag : public Drag
1086 CrossfadeEdgeDrag (Editor*, AudioRegionView*, ArdourCanvas::Item*, bool start);
1088 void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
1089 void motion (GdkEvent*, bool);
1090 void finished (GdkEvent*, bool);
1091 void aborted (bool);
1093 bool y_movement_matters () const {
1097 virtual std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1098 return std::make_pair (4, 4);
1102 AudioRegionView* arv;
1106 #endif /* __gtk2_ardour_editor_drag_h_ */