X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Feditor_drag.h;h=4170315294c20f7279a680ab1b27e5e719326982;hb=b1775149307a157444c516693ad6b98a404ef1b2;hp=1d9ac151d8f7a150678a2448e8d30940ceb0b4ac;hpb=732ac7756ad9caa2ab4b0b181b78e103b967d0fc;p=ardour.git diff --git a/gtk2_ardour/editor_drag.h b/gtk2_ardour/editor_drag.h index 1d9ac151d8..4170315294 100644 --- a/gtk2_ardour/editor_drag.h +++ b/gtk2_ardour/editor_drag.h @@ -34,33 +34,49 @@ namespace ARDOUR { class Location; } +namespace PBD { + class StatefulDiffCommand; +} + +namespace Gnome { + namespace Canvas { + class CanvasNoteEvent; + class CanvasPatchChange; + } +} + class Editor; class EditorCursor; class TimeAxisView; +class MidiTimeAxisView; +class Drag; -/** Abstract base class for dragging of things within the editor */ -class Drag +/** Class to manage current drags */ +class DragManager { - public: - Drag (Editor *, ArdourCanvas::Item *); - virtual ~Drag () {} - /** @return the canvas item being dragged */ - ArdourCanvas::Item* item () const { - return _item; - } + DragManager (Editor* e); + ~DragManager (); - void swap_grab (ArdourCanvas::Item *, Gdk::Cursor *, uint32_t); - void break_drag (); + bool motion_handler (GdkEvent *, bool); - bool motion_handler (GdkEvent*, bool); + void abort (); + void add (Drag *); + void set (Drag *, GdkEvent *, Gdk::Cursor* c = 0); + void start_grab (GdkEvent *, Gdk::Cursor* c = 0); + bool end_grab (GdkEvent *); + bool have_item (ArdourCanvas::Item *) const; - /** @return true if an end drag is in progress */ + /** @return true if an end drag or abort is in progress */ bool ending () const { return _ending; } + bool active () const { + return !_drags.empty (); + } + /** @return current pointer x position in trackview coordinates */ double current_pointer_x () const { return _current_pointer_x; @@ -71,8 +87,44 @@ public: return _current_pointer_y; } - nframes64_t adjusted_current_frame (GdkEvent const *, bool snap = true) const; - + /** @return current pointer frame */ + ARDOUR::framepos_t current_pointer_frame () const { + return _current_pointer_frame; + } + +private: + Editor* _editor; + std::list _drags; + bool _ending; ///< true if end_grab or abort is in progress, otherwise false + double _current_pointer_x; ///< trackview x of the current pointer + double _current_pointer_y; ///< trackview y of the current pointer + ARDOUR::framepos_t _current_pointer_frame; ///< frame that the pointer is now at + bool _old_follow_playhead; ///< state of Editor::follow_playhead() before the drags started +}; + +/** Abstract base class for dragging of things within the editor */ +class Drag +{ +public: + Drag (Editor *, ArdourCanvas::Item *); + virtual ~Drag () {} + + void set_manager (DragManager* m) { + _drags = m; + } + + /** @return the canvas item being dragged */ + ArdourCanvas::Item* item () const { + return _item; + } + + void swap_grab (ArdourCanvas::Item *, Gdk::Cursor *, uint32_t); + bool motion_handler (GdkEvent*, bool); + void abort (); + + ARDOUR::framepos_t adjusted_frame (ARDOUR::framepos_t, GdkEvent const *, bool snap = true) const; + ARDOUR::framepos_t adjusted_current_frame (GdkEvent const *, bool snap = true) const; + /** Called to start a grab of an item. * @param e Event that caused the grab to start. * @param c Cursor to use, or 0. @@ -93,6 +145,12 @@ public: */ virtual void finished (GdkEvent* e, bool m) = 0; + /** Called to abort a drag and return things to how + * they were before it started. + * @param m true if some movement occurred, otherwise false. + */ + virtual void aborted (bool m) = 0; + /** @param m Mouse mode. * @return true if this drag should happen in this mouse mode. */ @@ -100,17 +158,30 @@ public: return (m != Editing::MouseGain); } - /** @return true if a small threshold should be applied before a mouse movement - * is considered a drag, otherwise false. - */ - virtual bool apply_move_threshold () const { - return false; + /** @return minimum number of frames (in x) and pixels (in y) that should be considered a movement */ + virtual std::pair move_threshold () const { + return std::make_pair (1, 1); } virtual bool allow_vertical_autoscroll () const { return true; } + /** @return true if x movement matters to this drag */ + virtual bool x_movement_matters () const { + return true; + } + + /** @return true if y movement matters to this drag */ + virtual bool y_movement_matters () const { + return true; + } + + /** Set up the _pointer_frame_offset */ + virtual void setup_pointer_frame_offset () { + _pointer_frame_offset = 0; + } + protected: double grab_x () const { @@ -121,7 +192,11 @@ protected: return _grab_y; } - double grab_frame () const { + ARDOUR::framepos_t raw_grab_frame () const { + return _raw_grab_frame; + } + + ARDOUR::framepos_t grab_frame () const { return _grab_frame; } @@ -137,33 +212,53 @@ protected: return _last_pointer_frame; } + void show_verbose_cursor_time (framepos_t); + void show_verbose_cursor_duration (framepos_t, framepos_t, double xoffset = 0); + void show_verbose_cursor_text (std::string const &); + Editor* _editor; ///< our editor + DragManager* _drags; ArdourCanvas::Item* _item; ///< our item /** Offset from the mouse's position for the drag to the start of the thing that is being dragged */ - nframes64_t _pointer_frame_offset; + ARDOUR::framecnt_t _pointer_frame_offset; bool _x_constrained; ///< true if x motion is constrained, otherwise false bool _y_constrained; ///< true if y motion is constrained, otherwise false bool _was_rolling; ///< true if the session was rolling before the drag started, otherwise false - bool _have_transaction; ///< true if a transaction has been started, false otherwise. Must be set true by derived class. private: - bool _ending; ///< true if end_grab is in progress, otherwise false - bool _had_movement; ///< true if movement has occurred, otherwise false bool _move_threshold_passed; ///< true if the move threshold has been passed, otherwise false - double _original_x; ///< original world x of the thing being dragged - double _original_y; ///< original world y of the thing being dragged double _grab_x; ///< trackview x of the grab start position double _grab_y; ///< trackview y of the grab start position - double _current_pointer_x; ///< trackview x of the current pointer - double _current_pointer_y; ///< trackview y of the current pointer double _last_pointer_x; ///< trackview x of the pointer last time a motion occurred double _last_pointer_y; ///< trackview y of the pointer last time a motion occurred - nframes64_t _grab_frame; ///< frame that the mouse was at when start_grab was called, or 0 - nframes64_t _last_pointer_frame; ///< adjusted_current_frame the last time a motion occurred - nframes64_t _current_pointer_frame; ///< frame that the pointer is now at + ARDOUR::framepos_t _raw_grab_frame; ///< unsnapped frame that the mouse was at when start_grab was called, or 0 + ARDOUR::framepos_t _grab_frame; ///< adjusted_frame that the mouse was at when start_grab was called, or 0 + ARDOUR::framepos_t _last_pointer_frame; ///< adjusted_frame the last time a motion occurred }; +class RegionDrag; + +/** Container for details about a region being dragged */ +struct DraggingView +{ + DraggingView (RegionView *, RegionDrag *); + + RegionView* view; ///< the view + /** index into RegionDrag::_time_axis_views of the view that this region is currently being displayed on, + * or -1 if it is not visible. + */ + int time_axis_view; + /** layer that this region is currently being displayed on. This is a double + rather than a layer_t as we use fractional layers during drags to allow the user + to indicate a new layer to put a region on. + */ + double layer; + double initial_y; ///< the initial y position of the view before any reparenting + framepos_t initial_position; ///< initial position of the region + framepos_t initial_end; ///< initial end position of the region + boost::shared_ptr initial_playlist; +}; /** Abstract base class for drags that involve region(s) */ class RegionDrag : public Drag, public sigc::trackable @@ -175,9 +270,19 @@ public: protected: RegionView* _primary; ///< the view that was clicked on (or whatever) to start the drag - std::list _views; ///< all views that are being dragged + std::list _views; ///< information about all views that are being dragged + + /** a list of the non-hidden TimeAxisViews sorted by editor order key */ + std::vector _time_axis_views; + int find_time_axis_view (TimeAxisView *) const; + + int _visible_y_low; + int _visible_y_high; + + friend class DraggingView; private: + void region_going_away (RegionView *); PBD::ScopedConnection death_connection; }; @@ -193,35 +298,24 @@ public: virtual void start_grab (GdkEvent *, Gdk::Cursor *); virtual void motion (GdkEvent *, bool); - virtual void finished (GdkEvent *, bool) = 0; - -protected: - struct TimeAxisViewSummary { - TimeAxisViewSummary () : height_list(512) {} + virtual void finished (GdkEvent *, bool); + virtual void aborted (bool); - std::bitset<512> tracks; - std::vector height_list; - int visible_y_low; - int visible_y_high; - }; + /** @return true if the regions being `moved' came from somewhere on the canvas; + * false if they came from outside (e.g. from the region list). + */ + virtual bool regions_came_from_canvas () const = 0; - void copy_regions (GdkEvent *); - bool y_movement_disallowed (int, int, int, TimeAxisViewSummary const &) const; - std::map > find_time_axis_views_and_layers (); - double compute_x_delta (GdkEvent const *, nframes64_t *); - bool compute_y_delta ( - TimeAxisView const *, TimeAxisView*, int32_t, int32_t, TimeAxisViewSummary const &, - int32_t *, int32_t *, int32_t * - ); +protected: - TimeAxisViewSummary get_time_axis_view_summary (); - bool x_move_allowed () const; + double compute_x_delta (GdkEvent const *, ARDOUR::framecnt_t *); + bool y_movement_allowed (int, double) const; - TimeAxisView* _dest_trackview; - ARDOUR::layer_t _dest_layer; - bool check_possible (RouteTimeAxisView **, ARDOUR::layer_t *); bool _brushing; - nframes64_t _last_frame_position; ///< last position of the thing being dragged + ARDOUR::framepos_t _last_frame_position; ///< last position of the thing being dragged + double _total_x_delta; + int _last_pointer_time_axis_view; + double _last_pointer_layer; }; @@ -234,25 +328,69 @@ public: RegionMoveDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list const &, bool, bool); virtual ~RegionMoveDrag () {} - virtual void start_grab (GdkEvent *, Gdk::Cursor *); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); - bool apply_move_threshold () const { + bool regions_came_from_canvas () const { return true; } + std::pair move_threshold () const { + return std::make_pair (4, 4); + } + + void setup_pointer_frame_offset (); + private: + typedef std::set > PlaylistSet; + + void finished_no_copy ( + bool const, + bool const, + ARDOUR::framecnt_t const + ); + + void finished_copy ( + bool const, + bool const, + ARDOUR::framecnt_t const + ); + + RegionView* insert_region_into_playlist ( + boost::shared_ptr, + RouteTimeAxisView*, + ARDOUR::layer_t, + ARDOUR::framecnt_t, + PlaylistSet& + ); + + void remove_region_from_playlist ( + boost::shared_ptr, + boost::shared_ptr, + PlaylistSet& modified_playlists + ); + + void add_stateful_diff_commands_for_playlists (PlaylistSet const &); + + void collect_new_region_view (RegionView *); + bool _copy; + RegionView* _new_region_view; }; /** Drag to insert a region from somewhere */ class RegionInsertDrag : public RegionMotionDrag { public: - RegionInsertDrag (Editor *, boost::shared_ptr, RouteTimeAxisView*, nframes64_t); + RegionInsertDrag (Editor *, boost::shared_ptr, RouteTimeAxisView*, ARDOUR::framepos_t); void finished (GdkEvent *, bool); + void aborted (bool); + + bool regions_came_from_canvas () const { + return false; + } }; /** Region drag in splice mode */ @@ -263,6 +401,7 @@ public: void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); }; /** Drags to create regions */ @@ -271,13 +410,14 @@ class RegionCreateDrag : public Drag public: RegionCreateDrag (Editor *, ArdourCanvas::Item *, TimeAxisView *); - void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); private: - TimeAxisView* _view; - TimeAxisView* _dest_trackview; + MidiTimeAxisView* _view; + boost::shared_ptr _region; + void add_region (); }; /** Drags to resize MIDI notes */ @@ -289,6 +429,7 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); private: MidiRegionView* region; @@ -296,6 +437,7 @@ private: bool at_front; }; +/** Drags to move MIDI notes */ class NoteDrag : public Drag { public: @@ -304,27 +446,76 @@ class NoteDrag : public Drag void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); private: - MidiRegionView* region; - double last_x; - double last_y; - double drag_delta_x; - double drag_delta_note; - bool was_selected; + + ARDOUR::frameoffset_t total_dx () const; + int8_t total_dy () const; + + MidiRegionView* _region; + Gnome::Canvas::CanvasNoteEvent* _primary; + double _cumulative_dx; + double _cumulative_dy; + bool _was_selected; + double _note_height; +}; + +class NoteCreateDrag : public Drag +{ +public: + NoteCreateDrag (Editor *, ArdourCanvas::Item *, MidiRegionView *); + ~NoteCreateDrag (); + + void start_grab (GdkEvent *, Gdk::Cursor* c = 0); + void motion (GdkEvent *, bool); + void finished (GdkEvent *, bool); + void aborted (bool); + +private: + double y_to_region (double) const; + framecnt_t grid_frames (framepos_t) const; + + MidiRegionView* _region_view; + ArdourCanvas::SimpleRect* _drag_rect; + framepos_t _note[2]; +}; + +/** Drag to move MIDI patch changes */ +class PatchChangeDrag : public Drag +{ +public: + PatchChangeDrag (Editor *, ArdourCanvas::CanvasPatchChange *, MidiRegionView *); + + void motion (GdkEvent *, bool); + void finished (GdkEvent *, bool); + void aborted (bool); + + bool y_movement_matters () const { + return false; + } + + void setup_pointer_frame_offset (); + +private: + MidiRegionView* _region_view; + ArdourCanvas::CanvasPatchChange* _patch_change; + double _cumulative_dx; }; /** Drag of region gain */ class RegionGainDrag : public Drag { public: - RegionGainDrag (Editor *e, ArdourCanvas::Item *i) : Drag (e, i) {} + RegionGainDrag (Editor *, ArdourCanvas::Item *); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); bool active (Editing::MouseMode m) { return (m == Editing::MouseGain); } + + void aborted (bool); }; /** Drag to trim region(s) */ @@ -342,6 +533,13 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); + + bool y_movement_matters () const { + return false; + } + + void setup_pointer_frame_offset (); private: @@ -357,11 +555,18 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); bool allow_vertical_autoscroll () const { return false; } - + + bool y_movement_matters () const { + return false; + } + + void setup_pointer_frame_offset (); + private: MeterMarker* _marker; bool _copy; @@ -376,18 +581,25 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); bool allow_vertical_autoscroll () const { return false; } + bool y_movement_matters () const { + return false; + } + + void setup_pointer_frame_offset (); + private: TempoMarker* _marker; bool _copy; }; -/** Drag of a cursor */ +/** Drag of the playhead cursor */ class CursorDrag : public Drag { public: @@ -396,6 +608,7 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); bool active (Editing::MouseMode) { return true; @@ -405,10 +618,15 @@ public: return false; } + bool y_movement_matters () const { + return true; + } + private: - EditorCursor* _cursor; ///< cursor being dragged - bool _stop; ///< true to stop the transport on starting the drag, otherwise false + void fake_locate (framepos_t); + bool _stop; ///< true to stop the transport on starting the drag, otherwise false + double _grab_zoom; ///< editor frames per unit when our grab started }; /** Region fade-in drag */ @@ -420,6 +638,13 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); + + bool y_movement_matters () const { + return false; + } + + void setup_pointer_frame_offset (); }; /** Region fade-out drag */ @@ -431,6 +656,13 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); + + bool y_movement_matters () const { + return false; + } + + void setup_pointer_frame_offset (); }; /** Marker drag */ @@ -443,17 +675,23 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); bool allow_vertical_autoscroll () const { return false; } - + + bool y_movement_matters () const { + return false; + } + + void setup_pointer_frame_offset (); + private: void update_item (ARDOUR::Location *); Marker* _marker; ///< marker being dragged std::list _copied_locations; - ArdourCanvas::Line* _line; ArdourCanvas::Points _points; }; @@ -466,18 +704,18 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); bool active (Editing::MouseMode m); private: ControlPoint* _point; - double _time_axis_view_grab_x; - double _time_axis_view_grab_y; - nframes64_t _time_axis_view_grab_frame; + double _fixed_grab_x; + double _fixed_grab_y; double _cumulative_x_drag; double _cumulative_y_drag; - static double const _zero_gain_fraction; + static double _zero_gain_fraction; }; /** Gain or automation line drag */ @@ -489,6 +727,7 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); bool active (Editing::MouseMode) { return true; @@ -497,47 +736,118 @@ public: private: AutomationLine* _line; - double _time_axis_view_grab_x; - double _time_axis_view_grab_y; + double _fixed_grab_x; + double _fixed_grab_y; uint32_t _before; uint32_t _after; double _cumulative_y_drag; }; +/** Transient feature line drags*/ +class FeatureLineDrag : public Drag +{ +public: + FeatureLineDrag (Editor *e, ArdourCanvas::Item *i); + + void start_grab (GdkEvent *, Gdk::Cursor* c = 0); + void motion (GdkEvent *, bool); + void finished (GdkEvent *, bool); + void aborted (bool); + + bool active (Editing::MouseMode) { + return true; + } + +private: + + ArdourCanvas::Line* _line; + AudioRegionView* _arv; + + double _region_view_grab_x; + double _cumulative_x_drag; + + float _before; + uint32_t _max_x; +}; + /** Dragging of a rubberband rectangle for selecting things */ class RubberbandSelectDrag : public Drag { public: - RubberbandSelectDrag (Editor *e, ArdourCanvas::Item *i) : Drag (e, i) {} + RubberbandSelectDrag (Editor *, ArdourCanvas::Item *); void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); + + std::pair move_threshold () const { + return std::make_pair (8, 1); + } + + void do_select_things (GdkEvent *, bool); + + /** Select some things within a rectangle. + * @param button_state The button state from the GdkEvent. + * @param x1 The left-hand side of the rectangle in session frames. + * @param x2 The right-hand side of the rectangle in session frames. + * @param y1 The top of the rectangle in trackview coordinates. + * @param y2 The bottom of the rectangle in trackview coordinates. + * @param drag_in_progress true if the drag is currently happening. + */ + virtual void select_things (int button_state, framepos_t x1, framepos_t x2, double y1, double y2, bool drag_in_progress) = 0; + + virtual void deselect_things () = 0; +}; + +/** A general editor RubberbandSelectDrag (for regions, automation points etc.) */ +class EditorRubberbandSelectDrag : public RubberbandSelectDrag +{ +public: + EditorRubberbandSelectDrag (Editor *, ArdourCanvas::Item *); + + void select_things (int, framepos_t, framepos_t, double, double, bool); + void deselect_things (); +}; + +/** A RubberbandSelectDrag for selecting MIDI notes */ +class MidiRubberbandSelectDrag : public RubberbandSelectDrag +{ +public: + MidiRubberbandSelectDrag (Editor *, MidiRegionView *); + + void select_things (int, framepos_t, framepos_t, double, double, bool); + void deselect_things (); + +private: + MidiRegionView* _region_view; }; /** Region drag in time-FX mode */ class TimeFXDrag : public RegionDrag { public: - TimeFXDrag (Editor *e, ArdourCanvas::Item *i, RegionView* p, std::list const & v) : RegionDrag (e, i, p, v) {} + TimeFXDrag (Editor *, ArdourCanvas::Item *, RegionView *, std::list const &); void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); }; /** Scrub drag in audition mode */ class ScrubDrag : public Drag { public: - ScrubDrag (Editor *e, ArdourCanvas::Item *i) : Drag (e, i) {} + ScrubDrag (Editor *, ArdourCanvas::Item *); void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); }; -/** Drag in range select(gc_owner.get()) moAutomatable */ +/** Drag in range select mode */ class SelectionDrag : public Drag { public: @@ -553,10 +863,16 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); + + void setup_pointer_frame_offset (); private: Operation _operation; bool _copy; + int _original_pointer_time_axis; + int _last_pointer_time_axis; + std::list _added_time_axes; }; /** Range marker drag */ @@ -574,6 +890,15 @@ public: void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); + + bool allow_vertical_autoscroll () const { + return false; + } + + bool y_movement_matters () const { + return false; + } private: void update_item (ARDOUR::Location *); @@ -583,15 +908,55 @@ private: bool _copy; }; -/* Drag of rectangle to set zoom */ +/** Drag of rectangle to set zoom */ class MouseZoomDrag : public Drag { public: - MouseZoomDrag (Editor *e, ArdourCanvas::Item *i) : Drag (e, i) {} + MouseZoomDrag (Editor *, ArdourCanvas::Item *); + + void start_grab (GdkEvent *, Gdk::Cursor* c = 0); + void motion (GdkEvent *, bool); + void finished (GdkEvent *, bool); + void aborted (bool); + + std::pair move_threshold () const { + return std::make_pair (4, 4); + } + +private: + bool _zoom_out; +}; + +/** Drag of a range of automation data, changing value but not position */ +class AutomationRangeDrag : public Drag +{ +public: + AutomationRangeDrag (Editor *, ArdourCanvas::Item *, std::list const &); void start_grab (GdkEvent *, Gdk::Cursor* c = 0); void motion (GdkEvent *, bool); void finished (GdkEvent *, bool); + void aborted (bool); + + bool x_movement_matters () const { + return false; + } + +private: + std::list _ranges; + AutomationTimeAxisView* _atav; + + /** A line that is part of the drag */ + struct Line { + boost::shared_ptr line; ///< the line + std::list points; ///< points to drag on the line + std::pair range; ///< the range of all points on the line, in session frames + XMLNode* state; ///< the XML state node before the drag + }; + + std::list _lines; + + bool _nothing_to_drag; }; #endif /* __gtk2_ardour_editor_drag_h_ */