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 double current_pointer_x () const;
221 double current_pointer_y () const;
223 boost::shared_ptr<ARDOUR::Region> add_midi_region (MidiTimeAxisView*);
225 void show_verbose_cursor_time (framepos_t);
226 void show_verbose_cursor_duration (framepos_t, framepos_t, double xoffset = 0);
227 void show_verbose_cursor_text (std::string const &);
229 Editor* _editor; ///< our editor
231 ArdourCanvas::Item* _item; ///< our item
232 /** Offset from the mouse's position for the drag to the start of the thing that is being dragged */
233 ARDOUR::framecnt_t _pointer_frame_offset;
234 bool _x_constrained; ///< true if x motion is constrained, otherwise false
235 bool _y_constrained; ///< true if y motion is constrained, otherwise false
236 bool _was_rolling; ///< true if the session was rolling before the drag started, otherwise false
239 bool _trackview_only; ///< true if pointer y value should always be relative to the top of the trackview group
240 bool _move_threshold_passed; ///< true if the move threshold has been passed, otherwise false
241 bool _starting_point_passed; ///< true if we called move () with first_move flag, otherwise false
242 bool _initially_vertical; ///< true if after move threshold is passed we appear to be moving vertically; undefined before that
243 bool _was_double_click; ///< true if drag initiated by a double click event
244 double _grab_x; ///< trackview x of the grab start position
245 double _grab_y; ///< y of the grab start position, possibly adjusted if _trackview_only is true
246 double _last_pointer_x; ///< trackview x of the pointer last time a motion occurred
247 double _last_pointer_y; ///< trackview y of the pointer last time a motion occurred
248 ARDOUR::framepos_t _raw_grab_frame; ///< unsnapped frame that the mouse was at when start_grab was called, or 0
249 ARDOUR::framepos_t _grab_frame; ///< adjusted_frame that the mouse was at when start_grab was called, or 0
250 ARDOUR::framepos_t _last_pointer_frame; ///< adjusted_frame the last time a motion occurred
251 CursorContext::Handle _cursor_ctx; ///< cursor change context
256 /** Container for details about a region being dragged */
260 DraggingView (RegionView *, RegionDrag *, TimeAxisView* original_tav);
262 RegionView* view; ///< the view
263 /** index into RegionDrag::_time_axis_views of the view that this region is currently being displayed on,
264 * or -1 if it is not visible.
267 /** layer that this region is currently being displayed on. This is a double
268 rather than a layer_t as we use fractional layers during drags to allow the user
269 to indicate a new layer to put a region on.
272 double initial_y; ///< the initial y position of the view before any reparenting
273 framepos_t initial_position; ///< initial position of the region
274 framepos_t initial_end; ///< initial end position of the region
275 framepos_t anchored_fade_length; ///< fade_length when anchored during drag
276 boost::shared_ptr<ARDOUR::Playlist> initial_playlist;
277 TimeAxisView* initial_time_axis_view;
280 /** Abstract base class for drags that involve region(s) */
281 class RegionDrag : public Drag, public sigc::trackable
284 RegionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
285 virtual ~RegionDrag () {}
289 RegionView* _primary; ///< the view that was clicked on (or whatever) to start the drag
290 std::list<DraggingView> _views; ///< information about all views that are being dragged
292 /** a list of the non-hidden TimeAxisViews sorted by editor order key */
293 std::vector<TimeAxisView*> _time_axis_views;
294 int find_time_axis_view (TimeAxisView *) const;
295 int apply_track_delta (const int start, const int delta, const int skip, const bool distance_only = false) const;
301 friend class DraggingView;
305 void region_going_away (RegionView *);
306 PBD::ScopedConnection death_connection;
310 /** Drags involving region motion from somewhere */
311 class RegionMotionDrag : public RegionDrag
315 RegionMotionDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool);
316 virtual ~RegionMotionDrag () {}
318 virtual void start_grab (GdkEvent *, Gdk::Cursor *);
319 virtual void motion (GdkEvent *, bool);
320 virtual void finished (GdkEvent *, bool);
321 virtual void aborted (bool);
323 /** @return true if the regions being `moved' came from somewhere on the canvas;
324 * false if they came from outside (e.g. from the region list).
326 virtual bool regions_came_from_canvas () const = 0;
330 double compute_x_delta (GdkEvent const *, ARDOUR::framepos_t *);
331 virtual bool y_movement_allowed (int, double, int skip_invisible = 0) const;
334 ARDOUR::framepos_t _last_frame_position; ///< last position of the thing being dragged
335 double _total_x_delta;
336 int _last_pointer_time_axis_view;
337 double _last_pointer_layer;
344 int32_t _snap_delta; ///< delta between the initial position and next snap point
348 /** Drags to move (or copy) regions that are already shown in the GUI to
349 * somewhere different.
351 class RegionMoveDrag : public RegionMotionDrag
354 RegionMoveDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &, bool, bool);
355 virtual ~RegionMoveDrag () {}
357 void motion (GdkEvent *, bool);
358 void finished (GdkEvent *, bool);
361 bool regions_came_from_canvas () const {
365 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
366 return std::make_pair (4, 4);
369 void setup_pointer_frame_offset ();
372 typedef std::set<boost::shared_ptr<ARDOUR::Playlist> > PlaylistSet;
373 void add_stateful_diff_commands_for_playlists (PlaylistSet const &);
376 void finished_no_copy (
379 ARDOUR::framecnt_t const
385 ARDOUR::framecnt_t const
388 RegionView* insert_region_into_playlist (
389 boost::shared_ptr<ARDOUR::Region>,
396 void remove_region_from_playlist (
397 boost::shared_ptr<ARDOUR::Region>,
398 boost::shared_ptr<ARDOUR::Playlist>,
399 PlaylistSet& modified_playlists
403 void collect_new_region_view (RegionView *);
404 RouteTimeAxisView* create_destination_time_axis (boost::shared_ptr<ARDOUR::Region>, TimeAxisView* original);
407 RegionView* _new_region_view;
410 /** Drag to insert a region from somewhere */
411 class RegionInsertDrag : public RegionMotionDrag
414 RegionInsertDrag (Editor *, boost::shared_ptr<ARDOUR::Region>, RouteTimeAxisView*, ARDOUR::framepos_t);
416 void finished (GdkEvent *, bool);
419 bool regions_came_from_canvas () const {
424 /** Region drag in splice mode */
425 class RegionSpliceDrag : public RegionMoveDrag
428 RegionSpliceDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
430 void motion (GdkEvent *, bool);
431 void finished (GdkEvent *, bool);
435 /** Region drag in ripple mode */
437 class RegionRippleDrag : public RegionMoveDrag
440 RegionRippleDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
441 ~RegionRippleDrag () { delete exclude; }
443 void motion (GdkEvent *, bool);
444 void finished (GdkEvent *, bool);
447 bool y_movement_allowed (int delta_track, double delta_layer, int skip_invisible = 0) const;
450 TimeAxisView *prev_tav; // where regions were most recently dragged from
451 TimeAxisView *orig_tav; // where drag started
452 framecnt_t prev_amount;
453 framepos_t prev_position;
454 framecnt_t selection_length;
455 bool allow_moves_across_tracks; // only if all selected regions are on one track
456 ARDOUR::RegionList *exclude;
457 void add_all_after_to_views (TimeAxisView *tav, framepos_t where, const RegionSelection &exclude, bool drag_in_progress);
458 void remove_unselected_from_views (framecnt_t amount, bool move_regions);
462 /** "Drag" to cut a region (action only on button release) */
463 class RegionCutDrag : public Drag
466 RegionCutDrag (Editor*, ArdourCanvas::Item*, framepos_t);
469 void motion (GdkEvent*, bool);
470 void finished (GdkEvent*, bool);
477 /** Drags to create regions */
478 class RegionCreateDrag : public Drag
481 RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *);
483 void motion (GdkEvent *, bool);
484 void finished (GdkEvent *, bool);
488 MidiTimeAxisView* _view;
489 boost::shared_ptr<ARDOUR::Region> _region;
492 /** Drags to resize MIDI notes */
493 class NoteResizeDrag : public Drag
496 NoteResizeDrag (Editor *, ArdourCanvas::Item *);
498 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
499 void motion (GdkEvent *, bool);
500 void finished (GdkEvent *, bool);
504 MidiRegionView* region;
510 /** Drags to move MIDI notes */
511 class NoteDrag : public Drag
514 NoteDrag (Editor*, ArdourCanvas::Item*);
516 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
517 void motion (GdkEvent *, bool);
518 void finished (GdkEvent *, bool);
523 ARDOUR::frameoffset_t total_dx () const;
524 int8_t total_dy () const;
526 MidiRegionView* _region;
528 double _cumulative_dx;
529 double _cumulative_dy;
535 class NoteCreateDrag : public Drag
538 NoteCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *);
541 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
542 void motion (GdkEvent *, bool);
543 void finished (GdkEvent *, bool);
546 bool active (Editing::MouseMode mode) {
547 return mode == Editing::MouseDraw;
550 bool y_movement_matters () const {
555 double y_to_region (double) const;
556 framecnt_t grid_frames (framepos_t) const;
558 MidiRegionView* _region_view;
559 ArdourCanvas::Rectangle* _drag_rect;
563 /** Drag to move MIDI patch changes */
564 class PatchChangeDrag : public Drag
567 PatchChangeDrag (Editor *, PatchChange *, MidiRegionView *);
569 void motion (GdkEvent *, bool);
570 void finished (GdkEvent *, bool);
573 bool y_movement_matters () const {
577 void setup_pointer_frame_offset ();
580 MidiRegionView* _region_view;
581 PatchChange* _patch_change;
582 double _cumulative_dx;
585 /** Container for details about audio regions being dragged along with video */
589 AVDraggingView (RegionView *);
591 RegionView* view; ///< the view
592 framepos_t initial_position; ///< initial position of the region
595 /** Drag of video offset */
596 class VideoTimeLineDrag : public Drag
599 VideoTimeLineDrag (Editor *e, ArdourCanvas::Item *i);
601 void motion (GdkEvent *, bool);
602 void finished (GdkEvent *, bool);
603 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
605 bool y_movement_matters () const {
609 bool allow_vertical_autoscroll () const {
616 std::list<AVDraggingView> _views; ///< information about all audio that are being dragged along
619 ARDOUR::frameoffset_t _startdrag_video_offset;
620 ARDOUR::frameoffset_t _max_backwards_drag;
623 /** Drag to trim region(s) */
624 class TrimDrag : public RegionDrag
633 TrimDrag (Editor *, ArdourCanvas::Item *, RegionView*, std::list<RegionView*> const &, bool preserve_fade_anchor = false);
635 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
636 void motion (GdkEvent *, bool);
637 void finished (GdkEvent *, bool);
640 bool y_movement_matters () const {
644 void setup_pointer_frame_offset ();
648 Operation _operation;
650 bool _preserve_fade_anchor;
651 bool _jump_position_when_done;
655 /** Meter marker drag */
656 class MeterMarkerDrag : public Drag
659 MeterMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
661 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
662 void motion (GdkEvent *, bool);
663 void finished (GdkEvent *, bool);
666 bool allow_vertical_autoscroll () const {
670 bool y_movement_matters () const {
674 void setup_pointer_frame_offset ();
677 MeterMarker* _marker;
679 XMLNode* before_state;
682 /** Tempo marker drag */
683 class TempoMarkerDrag : public Drag
686 TempoMarkerDrag (Editor *, ArdourCanvas::Item *, bool);
688 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
689 void motion (GdkEvent *, bool);
690 void finished (GdkEvent *, bool);
693 bool allow_vertical_autoscroll () const {
697 bool y_movement_matters () const {
701 void setup_pointer_frame_offset ();
704 TempoMarker* _marker;
706 XMLNode* before_state;
710 /** Drag of the playhead cursor */
711 class CursorDrag : public Drag
714 CursorDrag (Editor *, EditorCursor&, bool);
716 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
717 void motion (GdkEvent *, bool);
718 void finished (GdkEvent *, bool);
721 bool allow_vertical_autoscroll () const {
725 bool y_movement_matters () const {
730 void fake_locate (framepos_t);
732 EditorCursor& _cursor;
733 bool _stop; ///< true to stop the transport on starting the drag, otherwise false
734 double _grab_zoom; ///< editor frames per unit when our grab started
738 /** Region fade-in drag */
739 class FadeInDrag : public RegionDrag
742 FadeInDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
744 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
745 void motion (GdkEvent *, bool);
746 void finished (GdkEvent *, bool);
749 bool y_movement_matters () const {
753 void setup_pointer_frame_offset ();
758 /** Region fade-out drag */
759 class FadeOutDrag : public RegionDrag
762 FadeOutDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
764 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
765 void motion (GdkEvent *, bool);
766 void finished (GdkEvent *, bool);
769 bool y_movement_matters () const {
773 void setup_pointer_frame_offset ();
779 class MarkerDrag : public Drag
782 MarkerDrag (Editor *, ArdourCanvas::Item *);
785 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
786 void motion (GdkEvent *, bool);
787 void finished (GdkEvent *, bool);
790 bool allow_vertical_autoscroll () const {
794 bool y_movement_matters () const {
798 void setup_pointer_frame_offset ();
801 void update_item (ARDOUR::Location *);
803 Marker* _marker; ///< marker being dragged
805 struct CopiedLocationMarkerInfo {
806 ARDOUR::Location* location;
807 std::vector<Marker*> markers;
809 CopiedLocationMarkerInfo (ARDOUR::Location* l, Marker* m);
812 typedef std::list<CopiedLocationMarkerInfo> CopiedLocationInfo;
813 CopiedLocationInfo _copied_locations;
814 ArdourCanvas::Points _points;
817 /** Control point drag */
818 class ControlPointDrag : public Drag
821 ControlPointDrag (Editor *, ArdourCanvas::Item *);
823 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
824 void motion (GdkEvent *, bool);
825 void finished (GdkEvent *, bool);
828 bool active (Editing::MouseMode m);
832 ControlPoint* _point;
833 double _fixed_grab_x;
834 double _fixed_grab_y;
835 double _cumulative_x_drag;
836 double _cumulative_y_drag;
838 uint32_t _final_index;
840 static double _zero_gain_fraction;
843 /** Gain or automation line drag */
844 class LineDrag : public Drag
847 LineDrag (Editor *e, ArdourCanvas::Item *i);
849 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
850 void motion (GdkEvent *, bool);
851 void finished (GdkEvent *, bool);
856 AutomationLine* _line;
857 double _fixed_grab_x;
858 double _fixed_grab_y;
859 double _cumulative_y_drag;
862 /** Transient feature line drags*/
863 class FeatureLineDrag : public Drag
866 FeatureLineDrag (Editor *e, ArdourCanvas::Item *i);
868 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
869 void motion (GdkEvent *, bool);
870 void finished (GdkEvent *, bool);
875 ArdourCanvas::Line* _line;
876 AudioRegionView* _arv;
878 double _region_view_grab_x;
879 double _cumulative_x_drag;
885 /** Dragging of a rubberband rectangle for selecting things */
886 class RubberbandSelectDrag : public Drag
889 RubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
891 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
892 void motion (GdkEvent *, bool);
893 void finished (GdkEvent *, bool);
896 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
897 return std::make_pair (8, 1);
900 void do_select_things (GdkEvent *, bool);
902 /** Select some things within a rectangle.
903 * @param button_state The button state from the GdkEvent.
904 * @param x1 The left-hand side of the rectangle in session frames.
905 * @param x2 The right-hand side of the rectangle in session frames.
906 * @param y1 The top of the rectangle in trackview coordinates.
907 * @param y2 The bottom of the rectangle in trackview coordinates.
908 * @param drag_in_progress true if the drag is currently happening.
910 virtual void select_things (int button_state, framepos_t x1, framepos_t x2, double y1, double y2, bool drag_in_progress) = 0;
912 virtual void deselect_things () = 0;
918 /** A general editor RubberbandSelectDrag (for regions, automation points etc.) */
919 class EditorRubberbandSelectDrag : public RubberbandSelectDrag
922 EditorRubberbandSelectDrag (Editor *, ArdourCanvas::Item *);
924 void select_things (int, framepos_t, framepos_t, double, double, bool);
925 void deselect_things ();
928 /** A RubberbandSelectDrag for selecting MIDI notes */
929 class MidiRubberbandSelectDrag : public RubberbandSelectDrag
932 MidiRubberbandSelectDrag (Editor *, MidiRegionView *);
934 void select_things (int, framepos_t, framepos_t, double, double, bool);
935 void deselect_things ();
938 MidiRegionView* _region_view;
941 /** A RubberbandSelectDrag for selecting MIDI notes but with no horizonal component */
942 class MidiVerticalSelectDrag : public RubberbandSelectDrag
945 MidiVerticalSelectDrag (Editor *, MidiRegionView *);
947 void select_things (int, framepos_t, framepos_t, double, double, bool);
948 void deselect_things ();
951 MidiRegionView* _region_view;
954 /** Region drag in time-FX mode */
955 class TimeFXDrag : public RegionDrag
958 TimeFXDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list<RegionView*> const &);
960 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
961 void motion (GdkEvent *, bool);
962 void finished (GdkEvent *, bool);
968 /** Scrub drag in audition mode */
969 class ScrubDrag : public Drag
972 ScrubDrag (Editor *, ArdourCanvas::Item *);
974 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
975 void motion (GdkEvent *, bool);
976 void finished (GdkEvent *, bool);
980 /** Drag in range select mode */
981 class SelectionDrag : public Drag
992 SelectionDrag (Editor *, ArdourCanvas::Item *, Operation);
994 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
995 void motion (GdkEvent *, bool);
996 void finished (GdkEvent *, bool);
999 void setup_pointer_frame_offset ();
1002 Operation _operation;
1004 std::list<TimeAxisView*> _added_time_axes;
1005 bool _time_selection_at_start;
1006 framepos_t start_at_start;
1007 framepos_t end_at_start;
1010 /** Range marker drag */
1011 class RangeMarkerBarDrag : public Drag
1017 CreateTransportMarker,
1021 RangeMarkerBarDrag (Editor *, ArdourCanvas::Item *, Operation);
1022 ~RangeMarkerBarDrag ();
1024 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1025 void motion (GdkEvent *, bool);
1026 void finished (GdkEvent *, bool);
1027 void aborted (bool);
1029 bool allow_vertical_autoscroll () const {
1033 bool y_movement_matters () const {
1038 void update_item (ARDOUR::Location *);
1040 Operation _operation;
1041 ArdourCanvas::Rectangle* _drag_rect;
1045 /** Drag of rectangle to set zoom */
1046 class MouseZoomDrag : public Drag
1049 MouseZoomDrag (Editor *, ArdourCanvas::Item *);
1051 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1052 void motion (GdkEvent *, bool);
1053 void finished (GdkEvent *, bool);
1054 void aborted (bool);
1056 std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1057 return std::make_pair (4, 4);
1064 /** Drag of a range of automation data (either on an automation track or region gain),
1065 * changing value but not position.
1067 class AutomationRangeDrag : public Drag
1070 AutomationRangeDrag (Editor *, AutomationTimeAxisView *, std::list<ARDOUR::AudioRange> const &);
1071 AutomationRangeDrag (Editor *, RegionView *, std::list<ARDOUR::AudioRange> const &);
1073 void start_grab (GdkEvent *, Gdk::Cursor* c = 0);
1074 void motion (GdkEvent *, bool);
1075 void finished (GdkEvent *, bool);
1076 void aborted (bool);
1078 bool x_movement_matters () const {
1083 void setup (std::list<boost::shared_ptr<AutomationLine> > const &);
1084 double y_fraction (boost::shared_ptr<AutomationLine>, double global_y_position) const;
1085 double value (boost::shared_ptr<ARDOUR::AutomationList> list, double x) const;
1087 std::list<ARDOUR::AudioRange> _ranges;
1089 /** A line that is part of the drag */
1091 boost::shared_ptr<AutomationLine> line; ///< the line
1092 std::list<ControlPoint*> points; ///< points to drag on the line
1093 std::pair<ARDOUR::framepos_t, ARDOUR::framepos_t> range; ///< the range of all points on the line, in session frames
1094 XMLNode* state; ///< the XML state node before the drag
1095 double original_fraction; ///< initial y-fraction before the drag
1098 std::list<Line> _lines;
1100 bool _nothing_to_drag;
1104 /** Drag of one edge of an xfade
1106 class CrossfadeEdgeDrag : public Drag
1109 CrossfadeEdgeDrag (Editor*, AudioRegionView*, ArdourCanvas::Item*, bool start);
1111 void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
1112 void motion (GdkEvent*, bool);
1113 void finished (GdkEvent*, bool);
1114 void aborted (bool);
1116 bool y_movement_matters () const {
1120 virtual std::pair<ARDOUR::framecnt_t, int> move_threshold () const {
1121 return std::make_pair (4, 4);
1125 AudioRegionView* arv;
1129 #endif /* __gtk2_ardour_editor_drag_h_ */