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 "cursor_context.h"
31 #include "editor_items.h"
32 #include "mouse_cursors.h"
39 class StatefulDiffCommand;
46 class MidiTimeAxisView;
50 /** Class to manage current drags */
55 DragManager (Editor* e);
58 bool motion_handler (GdkEvent *, bool);
62 void set (Drag *, GdkEvent *, Gdk::Cursor* c = MouseCursors::invalid_cursor());
63 void start_grab (GdkEvent *, Gdk::Cursor* c = MouseCursors::invalid_cursor());
64 bool end_grab (GdkEvent *);
65 bool have_item (ArdourCanvas::Item *) const;
67 void mark_double_click ();
69 /** @return true if an end drag or abort is in progress */
70 bool ending () const {
74 bool active () const {
75 return !_drags.empty ();
78 /** @return current pointer x position in canvas coordinates */
79 double current_pointer_x () const {
80 return _current_pointer_x;
83 /** @return current pointer y position in canvas coordinates */
84 double current_pointer_y () const {
85 return _current_pointer_y;
88 /** @return current pointer frame */
89 ARDOUR::framepos_t current_pointer_frame () const {
90 return _current_pointer_frame;
95 std::list<Drag*> _drags;
96 bool _ending; ///< true if end_grab or abort is in progress, otherwise false
97 double _current_pointer_x; ///< canvas-coordinate space x of the current pointer
98 double _current_pointer_y; ///< canvas-coordinate space y of the current pointer
99 ARDOUR::framepos_t _current_pointer_frame; ///< frame that the pointer is now at
100 bool _old_follow_playhead; ///< state of Editor::follow_playhead() before the drags started
103 /** Abstract base class for dragging of things within the editor */
107 Drag (Editor *, ArdourCanvas::Item *, bool trackview_only = true);
110 void set_manager (DragManager* m) {
114 /** @return the canvas item being dragged */
115 ArdourCanvas::Item* item () const {
119 void swap_grab (ArdourCanvas::Item *, Gdk::Cursor *, uint32_t);
120 bool motion_handler (GdkEvent*, bool);
123 ARDOUR::framepos_t adjusted_frame (ARDOUR::framepos_t, GdkEvent const *, bool snap = true) const;
124 ARDOUR::framepos_t adjusted_current_frame (GdkEvent const *, bool snap = true) const;
126 bool was_double_click() const { return _was_double_click; }
127 void set_double_click (bool yn) { _was_double_click = yn; }
129 /** Called to start a grab of an item.
130 * @param e Event that caused the grab to start.
131 * @param c Cursor to use, or 0.
133 virtual void start_grab (GdkEvent* e, Gdk::Cursor* c = 0);
135 virtual bool end_grab (GdkEvent *);
137 /** Called when a drag motion has occurred.
138 * @param e Event describing the motion.
139 * @param f true if this is the first movement, otherwise false.
141 virtual void motion (GdkEvent* e, bool f) = 0;
143 /** Called when a drag has finished.
144 * @param e Event describing the finish.
145 * @param m true if some movement occurred, otherwise false.
147 virtual void finished (GdkEvent* e, bool m) = 0;
149 /** Called to abort a drag and return things to how
150 * they were before it started.
151 * @param m true if some movement occurred, otherwise false.
153 virtual void aborted (bool m) = 0;
155 /** @param m Mouse mode.
156 * @return true if this drag should happen in this mouse mode.
158 virtual bool active (Editing::MouseMode m) {
162 /** @return minimum number of frames (in x) and pixels (in y) that should be considered a movement */
163 virtual std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
164 return std::make_pair (1, 1);
167 virtual bool allow_vertical_autoscroll () const {
171 /** @return true if x movement matters to this drag */
172 virtual bool x_movement_matters () const {
176 /** @return true if y movement matters to this drag */
177 virtual bool y_movement_matters () const {
181 bool initially_vertical() const {
182 return _initially_vertical;
185 /** Set up the _pointer_frame_offset */
186 virtual void setup_pointer_frame_offset () {
187 _pointer_frame_offset = 0;
192 double grab_x () const {
196 double grab_y () const {
200 ARDOUR::framepos_t raw_grab_frame () const {
201 return _raw_grab_frame;
204 ARDOUR::framepos_t grab_frame () const {
208 double last_pointer_x () const {
209 return _last_pointer_x;
212 double last_pointer_y () const {
213 return _last_pointer_y;
216 ARDOUR::framepos_t last_pointer_frame () const {
217 return _last_pointer_frame;
220 framecnt_t snap_delta () const {
224 double current_pointer_x () const;
225 double current_pointer_y () const;
227 /* sets snap delta from unsnapped pos */
228 void setup_snap_delta (framepos_t pos);
230 boost::shared_ptr<ARDOUR::Region> add_midi_region (MidiTimeAxisView*);
232 void show_verbose_cursor_time (framepos_t);
233 void show_verbose_cursor_duration (framepos_t, framepos_t, double xoffset = 0);
234 void show_verbose_cursor_text (std::string const &);
236 Editor* _editor; ///< our editor
238 ArdourCanvas::Item* _item; ///< our item
239 /** Offset from the mouse's position for the drag to the start of the thing that is being dragged */
240 ARDOUR::framecnt_t _pointer_frame_offset;
241 bool _x_constrained; ///< true if x motion is constrained, otherwise false
242 bool _y_constrained; ///< true if y motion is constrained, otherwise false
243 bool _was_rolling; ///< true if the session was rolling before the drag started, otherwise false
246 bool _trackview_only; ///< true if pointer y value should always be relative to the top of the trackview group
247 bool _move_threshold_passed; ///< true if the move threshold has been passed, otherwise false
248 bool _starting_point_passed; ///< true if we called move () with first_move flag, otherwise false
249 bool _initially_vertical; ///< true if after move threshold is passed we appear to be moving vertically; undefined before that
250 bool _was_double_click; ///< true if drag initiated by a double click event
251 double _grab_x; ///< trackview x of the grab start position
252 double _grab_y; ///< y of the grab start position, possibly adjusted if _trackview_only is true
253 double _last_pointer_x; ///< trackview x of the pointer last time a motion occurred
254 double _last_pointer_y; ///< trackview y of the pointer last time a motion occurred
255 ARDOUR::framepos_t _raw_grab_frame; ///< unsnapped frame that the mouse was at when start_grab was called, or 0
256 ARDOUR::framepos_t _grab_frame; ///< adjusted_frame that the mouse was at when start_grab was called, or 0
257 ARDOUR::framepos_t _last_pointer_frame; ///< adjusted_frame the last time a motion occurred
259 /* difference between some key position's snapped and unsnapped
260 * framepos. used for relative snap.
262 framecnt_t _snap_delta;
263 CursorContext::Handle _cursor_ctx; ///< cursor change context
268 /** Container for details about a region being dragged */
272 DraggingView (RegionView *, RegionDrag *, TimeAxisView* original_tav);
274 RegionView* view; ///< the view
275 /** index into RegionDrag::_time_axis_views of the view that this region is currently being displayed on,
276 * or -1 if it is not visible.
279 /** layer that this region is currently being displayed on. This is a double
280 rather than a layer_t as we use fractional layers during drags to allow the user
281 to indicate a new layer to put a region on.
284 double initial_y; ///< the initial y position of the view before any reparenting
285 framepos_t initial_position; ///< initial position of the region
286 framepos_t initial_end; ///< initial end position of the region
287 framepos_t anchored_fade_length; ///< fade_length when anchored during drag
288 boost::shared_ptr<ARDOUR::Playlist> initial_playlist;
289 TimeAxisView* initial_time_axis_view;
292 /** Abstract base class for drags that involve region(s) */
293 class RegionDrag : public Drag, public sigc::trackable
296 RegionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
297 virtual ~RegionDrag () {}
301 RegionView* _primary; ///< the view that was clicked on (or whatever) to start the drag
302 std::list<DraggingView> _views; ///< information about all views that are being dragged
304 /** a list of the non-hidden TimeAxisViews sorted by editor order key */
305 std::vector<TimeAxisView*> _time_axis_views;
306 int find_time_axis_view (TimeAxisView *) const;
307 int apply_track_delta (const int start, const int delta, const int skip, const bool distance_only = false) const;
313 friend class DraggingView;
317 void region_going_away (RegionView *);
318 PBD::ScopedConnection death_connection;
322 /** Drags involving region motion from somewhere */
323 class RegionMotionDrag : public RegionDrag
327 RegionMotionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool);
328 virtual ~RegionMotionDrag () {}
330 virtual void start_grab (GdkEvent *, Gdk::Cursor *);
331 virtual void motion (GdkEvent *, bool);
332 virtual void finished (GdkEvent *, bool);
333 virtual void aborted (bool);
335 /** @return true if the regions being `moved' came from somewhere on the canvas;
336 * false if they came from outside (e.g. from the region list).
338 virtual bool regions_came_from_canvas () const = 0;
342 double compute_x_delta (GdkEvent const *, ARDOUR::framepos_t *);
343 virtual bool y_movement_allowed (int, double, int skip_invisible = 0) const;
346 ARDOUR::framepos_t _last_frame_position; ///< last position of the thing being dragged
347 double _total_x_delta;
348 int _last_pointer_time_axis_view;
349 double _last_pointer_layer;
359 /** Drags to move (or copy) regions that are already shown in the GUI to
360 * somewhere different.
362 class RegionMoveDrag : public RegionMotionDrag
365 RegionMoveDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool, bool);
366 virtual ~RegionMoveDrag () {}
368 void motion (GdkEvent *, bool);
369 void finished (GdkEvent *, bool);
372 bool regions_came_from_canvas () const {
376 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
377 return std::make_pair (4, 4);
380 void setup_pointer_frame_offset ();
383 typedef std::set<boost::shared_ptr<ARDOUR::Playlist> > PlaylistSet;
384 void add_stateful_diff_commands_for_playlists (PlaylistSet const &);
387 void finished_no_copy (
390 ARDOUR::framecnt_t const
396 ARDOUR::framecnt_t const
399 RegionView* insert_region_into_playlist (
400 boost::shared_ptr<ARDOUR::Region>,
407 void remove_region_from_playlist (
408 boost::shared_ptr<ARDOUR::Region>,
409 boost::shared_ptr<ARDOUR::Playlist>,
410 PlaylistSet& modified_playlists
414 void collect_new_region_view (RegionView *);
415 RouteTimeAxisView* create_destination_time_axis (boost::shared_ptr<ARDOUR::Region>, TimeAxisView* original);
418 RegionView* _new_region_view;
421 /** Drag to insert a region from somewhere */
422 class RegionInsertDrag : public RegionMotionDrag
425 RegionInsertDrag (Editor *, boost::shared_ptr<ARDOUR::Region>, RouteTimeAxisView*, ARDOUR::framepos_t);
427 void finished (GdkEvent *, bool);
430 bool regions_came_from_canvas () const {
435 /** Region drag in splice mode */
436 class RegionSpliceDrag : public RegionMoveDrag
439 RegionSpliceDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
441 void motion (GdkEvent *, bool);
442 void finished (GdkEvent *, bool);
446 /** Region drag in ripple mode */
448 class RegionRippleDrag : public RegionMoveDrag
451 RegionRippleDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
452 ~RegionRippleDrag () { delete exclude; }
454 void motion (GdkEvent *, bool);
455 void finished (GdkEvent *, bool);
458 bool y_movement_allowed (int delta_track, double delta_layer, int skip_invisible = 0) const;
461 TimeAxisView *prev_tav; // where regions were most recently dragged from
462 TimeAxisView *orig_tav; // where drag started
463 framecnt_t prev_amount;
464 framepos_t prev_position;
465 framecnt_t selection_length;
466 bool allow_moves_across_tracks; // only if all selected regions are on one track
467 ARDOUR::RegionList *exclude;
468 void add_all_after_to_views (TimeAxisView *tav, framepos_t where, const RegionSelection &exclude, bool drag_in_progress);
469 void remove_unselected_from_views (framecnt_t amount, bool move_regions);
473 /** "Drag" to cut a region (action only on button release) */
474 class RegionCutDrag : public Drag
477 RegionCutDrag (Editor*, ArdourCanvas::Item*, framepos_t);
480 void motion (GdkEvent*, bool);
481 void finished (GdkEvent*, bool);
488 /** Drags to create regions */
489 class RegionCreateDrag : public Drag
492 RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *);
494 void motion (GdkEvent *, bool);
495 void finished (GdkEvent *, bool);
499 MidiTimeAxisView* _view;
500 boost::shared_ptr<ARDOUR::Region> _region;
503 /** Drags to resize MIDI notes */
504 class NoteResizeDrag : public Drag
507 NoteResizeDrag (Editor *, ArdourCanvas::Item *);
509 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
510 void motion (GdkEvent *, bool);
511 void finished (GdkEvent *, bool);
515 MidiRegionView* region;
521 /** Drags to move MIDI notes */
522 class NoteDrag : public Drag
525 NoteDrag (Editor*, ArdourCanvas::Item*);
527 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
528 void motion (GdkEvent *, bool);
529 void finished (GdkEvent *, bool);
534 ARDOUR::frameoffset_t total_dx () const;
535 int8_t total_dy () const;
537 MidiRegionView* _region;
539 double _cumulative_dx;
540 double _cumulative_dy;
545 class NoteCreateDrag : public Drag
548 NoteCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *);
551 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
552 void motion (GdkEvent *, bool);
553 void finished (GdkEvent *, bool);
556 bool active (Editing::MouseMode mode) {
557 return mode == Editing::MouseDraw;
560 bool y_movement_matters () const {
565 double y_to_region (double) const;
566 framecnt_t grid_frames (framepos_t) const;
568 MidiRegionView* _region_view;
569 ArdourCanvas::Rectangle* _drag_rect;
573 /** Drag to move MIDI patch changes */
574 class PatchChangeDrag : public Drag
577 PatchChangeDrag (Editor *, PatchChange *, MidiRegionView *);
579 void motion (GdkEvent *, bool);
580 void finished (GdkEvent *, bool);
583 bool y_movement_matters () const {
587 void setup_pointer_frame_offset ();
590 MidiRegionView* _region_view;
591 PatchChange* _patch_change;
592 double _cumulative_dx;
595 /** Container for details about audio regions being dragged along with video */
599 AVDraggingView (RegionView *);
601 RegionView* view; ///< the view
602 framepos_t initial_position; ///< initial position of the region
605 /** Drag of video offset */
606 class VideoTimeLineDrag : public Drag
609 VideoTimeLineDrag (Editor *e, ArdourCanvas::Item *i);
611 void motion (GdkEvent *, bool);
612 void finished (GdkEvent *, bool);
613 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
615 bool y_movement_matters () const {
619 bool allow_vertical_autoscroll () const {
626 std::list<AVDraggingView> _views; ///< information about all audio that are being dragged along
629 ARDOUR::frameoffset_t _startdrag_video_offset;
630 ARDOUR::frameoffset_t _max_backwards_drag;
633 /** Drag to trim region(s) */
634 class TrimDrag : public RegionDrag
643 TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &, bool preserve_fade_anchor = false);
645 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
646 void motion (GdkEvent *, bool);
647 void finished (GdkEvent *, bool);
650 bool y_movement_matters () const {
654 void setup_pointer_frame_offset ();
658 Operation _operation;
660 bool _preserve_fade_anchor;
661 bool _jump_position_when_done;
664 /** Meter marker drag */
665 class MeterMarkerDrag : public Drag
668 MeterMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
670 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
671 void motion (GdkEvent *, bool);
672 void finished (GdkEvent *, bool);
675 bool allow_vertical_autoscroll () const {
679 bool y_movement_matters () const {
683 void setup_pointer_frame_offset ();
686 MeterMarker* _marker;
688 XMLNode* before_state;
691 /** Tempo marker drag */
692 class TempoMarkerDrag : public Drag
695 TempoMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
697 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
698 void motion (GdkEvent *, bool);
699 void finished (GdkEvent *, bool);
702 bool allow_vertical_autoscroll () const {
706 bool y_movement_matters () const {
710 void setup_pointer_frame_offset ();
713 TempoMarker* _marker;
715 XMLNode* before_state;
719 /** Drag of the playhead cursor */
720 class CursorDrag : public Drag
723 CursorDrag (Editor *, EditorCursor&, bool);
725 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
726 void motion (GdkEvent *, bool);
727 void finished (GdkEvent *, bool);
730 bool allow_vertical_autoscroll () const {
734 bool y_movement_matters () const {
739 void fake_locate (framepos_t);
741 EditorCursor& _cursor;
742 bool _stop; ///< true to stop the transport on starting the drag, otherwise false
743 double _grab_zoom; ///< editor frames per unit when our grab started
746 /** Region fade-in drag */
747 class FadeInDrag : public RegionDrag
750 FadeInDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
752 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
753 void motion (GdkEvent *, bool);
754 void finished (GdkEvent *, bool);
757 bool y_movement_matters () const {
761 void setup_pointer_frame_offset ();
764 /** Region fade-out drag */
765 class FadeOutDrag : public RegionDrag
768 FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
770 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
771 void motion (GdkEvent *, bool);
772 void finished (GdkEvent *, bool);
775 bool y_movement_matters () const {
779 void setup_pointer_frame_offset ();
783 class MarkerDrag : public Drag
786 MarkerDrag (Editor *, ArdourCanvas::Item *);
789 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
790 void motion (GdkEvent *, bool);
791 void finished (GdkEvent *, bool);
794 bool allow_vertical_autoscroll () const {
798 bool y_movement_matters () const {
802 void setup_pointer_frame_offset ();
805 void update_item (ARDOUR::Location *);
807 Marker* _marker; ///< marker being dragged
809 struct CopiedLocationMarkerInfo {
810 ARDOUR::Location* location;
811 std::vector<Marker*> markers;
813 CopiedLocationMarkerInfo (ARDOUR::Location* l, Marker* m);
816 typedef std::list<CopiedLocationMarkerInfo> CopiedLocationInfo;
817 CopiedLocationInfo _copied_locations;
818 ArdourCanvas::Points _points;
821 /** Control point drag */
822 class ControlPointDrag : public Drag
825 ControlPointDrag (Editor *, ArdourCanvas::Item *);
827 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
828 void motion (GdkEvent *, bool);
829 void finished (GdkEvent *, bool);
832 bool active (Editing::MouseMode m);
836 ControlPoint* _point;
837 double _fixed_grab_x;
838 double _fixed_grab_y;
839 double _cumulative_x_drag;
840 double _cumulative_y_drag;
842 uint32_t _final_index;
843 static double _zero_gain_fraction;
846 /** Gain or automation line drag */
847 class LineDrag : public Drag
850 LineDrag (Editor *e, ArdourCanvas::Item *i);
852 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
853 void motion (GdkEvent *, bool);
854 void finished (GdkEvent *, bool);
859 AutomationLine* _line;
860 double _fixed_grab_x;
861 double _fixed_grab_y;
862 double _cumulative_y_drag;
865 /** Transient feature line drags*/
866 class FeatureLineDrag : public Drag
869 FeatureLineDrag (Editor *e, ArdourCanvas::Item *i);
871 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
872 void motion (GdkEvent *, bool);
873 void finished (GdkEvent *, bool);
878 ArdourCanvas::Line* _line;
879 AudioRegionView* _arv;
881 double _region_view_grab_x;
882 double _cumulative_x_drag;
888 /** Dragging of a rubberband rectangle for selecting things */
889 class RubberbandSelectDrag : public Drag
892 RubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
894 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
895 void motion (GdkEvent *, bool);
896 void finished (GdkEvent *, bool);
899 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
900 return std::make_pair (8, 1);
903 void do_select_things (GdkEvent *, bool);
905 /** Select some things within a rectangle.
906 * @param button_state The button state from the GdkEvent.
907 * @param x1 The left-hand side of the rectangle in session frames.
908 * @param x2 The right-hand side of the rectangle in session frames.
909 * @param y1 The top of the rectangle in trackview coordinates.
910 * @param y2 The bottom of the rectangle in trackview coordinates.
911 * @param drag_in_progress true if the drag is currently happening.
913 virtual void select_things (int button_state, framepos_t x1, framepos_t x2, double y1, double y2, bool drag_in_progress) = 0;
915 virtual void deselect_things () = 0;
921 /** A general editor RubberbandSelectDrag (for regions, automation points etc.) */
922 class EditorRubberbandSelectDrag : public RubberbandSelectDrag
925 EditorRubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
927 void select_things (int, framepos_t, framepos_t, double, double, bool);
928 void deselect_things ();
931 /** A RubberbandSelectDrag for selecting MIDI notes */
932 class MidiRubberbandSelectDrag : public RubberbandSelectDrag
935 MidiRubberbandSelectDrag (Editor *, MidiRegionView *);
937 void select_things (int, framepos_t, framepos_t, double, double, bool);
938 void deselect_things ();
941 MidiRegionView* _region_view;
944 /** A RubberbandSelectDrag for selecting MIDI notes but with no horizonal component */
945 class MidiVerticalSelectDrag : public RubberbandSelectDrag
948 MidiVerticalSelectDrag (Editor *, MidiRegionView *);
950 void select_things (int, framepos_t, framepos_t, double, double, bool);
951 void deselect_things ();
954 MidiRegionView* _region_view;
957 /** Region drag in time-FX mode */
958 class TimeFXDrag : public RegionDrag
961 TimeFXDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
963 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
964 void motion (GdkEvent *, bool);
965 void finished (GdkEvent *, bool);
969 /** Scrub drag in audition mode */
970 class ScrubDrag : public Drag
973 ScrubDrag (Editor *, ArdourCanvas::Item *);
975 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
976 void motion (GdkEvent *, bool);
977 void finished (GdkEvent *, bool);
981 /** Drag in range select mode */
982 class SelectionDrag : public Drag
993 SelectionDrag (Editor *, ArdourCanvas::Item *, Operation);
995 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
996 void motion (GdkEvent *, bool);
997 void finished (GdkEvent *, bool);
1000 void setup_pointer_frame_offset ();
1003 Operation _operation;
1005 std::list<TimeAxisView*> _added_time_axes;
1006 bool _time_selection_at_start;
1007 framepos_t start_at_start;
1008 framepos_t end_at_start;
1011 /** Range marker drag */
1012 class RangeMarkerBarDrag : public Drag
1018 CreateTransportMarker,
1022 RangeMarkerBarDrag (Editor *, ArdourCanvas::Item *, Operation);
1023 ~RangeMarkerBarDrag ();
1025 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1026 void motion (GdkEvent *, bool);
1027 void finished (GdkEvent *, bool);
1028 void aborted (bool);
1030 bool allow_vertical_autoscroll () const {
1034 bool y_movement_matters () const {
1039 void update_item (ARDOUR::Location *);
1041 Operation _operation;
1042 ArdourCanvas::Rectangle* _drag_rect;
1046 /** Drag of rectangle to set zoom */
1047 class MouseZoomDrag : public Drag
1050 MouseZoomDrag (Editor *, ArdourCanvas::Item *);
1052 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1053 void motion (GdkEvent *, bool);
1054 void finished (GdkEvent *, bool);
1055 void aborted (bool);
1057 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1058 return std::make_pair (4, 4);
1065 /** Drag of a range of automation data (either on an automation track or region gain),
1066 * changing value but not position.
1068 class AutomationRangeDrag : public Drag
1071 AutomationRangeDrag (Editor *, AutomationTimeAxisView *, std::list<ARDOUR::AudioRange> const &);
1072 AutomationRangeDrag (Editor *, RegionView *, std::list<ARDOUR::AudioRange> const &);
1074 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1075 void motion (GdkEvent *, bool);
1076 void finished (GdkEvent *, bool);
1077 void aborted (bool);
1079 bool x_movement_matters () const {
1084 void setup (std::list<boost::shared_ptr<AutomationLine> > const &);
1085 double y_fraction (boost::shared_ptr<AutomationLine>, double global_y_position) const;
1086 double value (boost::shared_ptr<ARDOUR::AutomationList> list, double x) const;
1088 std::list<ARDOUR::AudioRange> _ranges;
1090 /** A line that is part of the drag */
1092 boost::shared_ptr<AutomationLine> line; ///< the line
1093 std::list<ControlPoint*> points; ///< points to drag on the line
1094 std::pair<ARDOUR::framepos_t, ARDOUR::framepos_t> range; ///< the range of all points on the line, in session frames
1095 XMLNode* state; ///< the XML state node before the drag
1096 double original_fraction; ///< initial y-fraction before the drag
1099 std::list<Line> _lines;
1101 bool _nothing_to_drag;
1105 /** Drag of one edge of an xfade
1107 class CrossfadeEdgeDrag : public Drag
1110 CrossfadeEdgeDrag (Editor*, AudioRegionView*, ArdourCanvas::Item*, bool start);
1112 void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
1113 void motion (GdkEvent*, bool);
1114 void finished (GdkEvent*, bool);
1115 void aborted (bool);
1117 bool y_movement_matters () const {
1121 virtual std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1122 return std::make_pair (4, 4);
1126 AudioRegionView* arv;
1130 #endif /* __gtk2_ardour_editor_drag_h_ */