grid/snap minimum selection length

[ardour.git] / gtk2_ardour / time_axis_view_item.h

diff --git a/gtk2_ardour/time_axis_view_item.h b/gtk2_ardour/time_axis_view_item.h
index dc5c8b7f8d58741a25fe3d1edeb7790ef1aefdf2..3985b8ffd85f79952151460844e93c74256d52f1 100644 (file)
--- a/gtk2_ardour/time_axis_view_item.h
+++ b/gtk2_ardour/time_axis_view_item.h
@@ -78,20 +78,28 @@ class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList
 
        double get_samples_per_unit();
 
+       virtual void drag_start() { _dragging = true; }
+       virtual void drag_end() { _dragging = false; }
+       bool dragging() const { return _dragging; }
+
        virtual void raise () { return; }
        virtual void raise_to_top () { return; }
        virtual void lower () { return; }
        virtual void lower_to_bottom () { return; }
-       
+
+        virtual void hide_rect ();
+        virtual void show_rect ();
+
        /** @return true if the name area should respond to events */
        bool name_active() const { return name_connected; }
 
        // Default sizes, font and spacing
-       static Pango::FontDescription* NAME_FONT;
+       static Pango::FontDescription NAME_FONT;
        static void set_constant_heights ();
        static const double NAME_X_OFFSET;
-       static const double GRAB_HANDLE_LENGTH;
-       
+       static const double GRAB_HANDLE_TOP;
+       static const double GRAB_HANDLE_WIDTH;
+
        /* these are not constant, but vary with the pixel size
           of the font used to display the item name.
        */
@@ -112,22 +120,22 @@ class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList
 
        /** Emitted when the name of this item is changed */
        sigc::signal<void,std::string,std::string,void*> NameChanged;
-       
+
        /** Emiited when the position of this item changes */
        sigc::signal<void,framepos_t,void*> PositionChanged;
-       
+
        /** Emitted when the position lock of this item is changed */
        sigc::signal<void,bool,void*> PositionLockChanged;
-       
+
        /** Emitted when the duration of this item changes */
        sigc::signal<void,framecnt_t,void*> DurationChanged;
-       
+
        /** Emitted when the maximum item duration is changed */
        sigc::signal<void,framecnt_t,void*> MaxDurationChanged;
-       
+
        /** Emitted when the mionimum item duration is changed */
        sigc::signal<void,framecnt_t,void*> MinDurationChanged;
-       
+
        enum Visibility {
                ShowFrame = 0x1,
                ShowNameHighlight = 0x2,
@@ -138,13 +146,13 @@ class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList
                HideFrameTB = 0x40,
                FullWidthNameHighlight = 0x80
        };
-       
+
   protected:
        TimeAxisViewItem(const std::string &, ArdourCanvas::Group&, TimeAxisView&, double, Gdk::Color const &,
-                        framepos_t, framepos_t, bool recording = false, bool automation = false, Visibility v = Visibility (0));
-       
+                        framepos_t, framecnt_t, bool recording = false, bool automation = false, Visibility v = Visibility (0));
+
        TimeAxisViewItem (const TimeAxisViewItem&);
-       
+
        void init (const std::string&, double, Gdk::Color const &, framepos_t, framepos_t, Visibility, bool, bool);
 
        virtual void compute_colors (Gdk::Color const &);
@@ -155,39 +163,39 @@ class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList
        virtual void reset_width_dependent_items (double);
        void reset_name_width (double);
        void update_name_pixbuf_visibility ();
-       
+
        static gint idle_remove_this_item(TimeAxisViewItem*, void*);
-       
+
        /** time axis that this item is on */
        TimeAxisView& trackview;
-       
+
        /** indicates whether this item is locked to its current position */
        bool position_locked;
-       
+
        /** position of this item on the timeline */
        framepos_t frame_position;
 
        /** duration of this item upon the timeline */
        framecnt_t item_duration;
-        
+
        /** maximum duration that this item can have */
        framecnt_t max_item_duration;
-       
+
        /** minimum duration that this item can have */
        framecnt_t min_item_duration;
-       
+
        /** indicates whether the max duration constraint is active */
        bool max_duration_active;
-       
+
        /** indicates whether the min duration constraint is active */
        bool min_duration_active;
-       
+
        /** samples per canvas unit */
        double samples_per_unit;
 
        /** should the item respond to events */
        bool _sensitive;
-       
+
        /**
         * The unique item name of this Item.
         * Each item upon a time axis must have a unique id.
@@ -209,7 +217,7 @@ class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList
        uint32_t selected_frame_color_g;
        uint32_t selected_frame_color_b;
        uint32_t label_color;
-       
+
        uint32_t handle_color_r;
        uint32_t handle_color_g;
        uint32_t handle_color_b;
@@ -220,7 +228,8 @@ class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList
        int name_pixbuf_width;
        bool wide_enough_for_name;
        bool high_enough_for_name;
-       
+        bool rect_visible;
+
        ArdourCanvas::Group*      group;
        ArdourCanvas::SimpleRect* vestigial_frame;
        ArdourCanvas::SimpleRect* frame;
@@ -230,16 +239,17 @@ class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList
        /* with these two values, if frame_handle_start == 0 then frame_handle_end will also be 0 */
        ArdourCanvas::SimpleRect* frame_handle_start; ///< `frame' (fade) handle for the start of the item, or 0
        ArdourCanvas::SimpleRect* frame_handle_end; ///< `frame' (fade) handle for the end of the item, or 0
-       
+
        double _height;
        Visibility visibility;
        bool _recregion;
        bool _automation; ///< true if this is an automation region view
+       bool _dragging;
 
 private:
-       
+
        void parameter_changed (std::string);
-       
+
 }; /* class TimeAxisViewItem */
 
 #endif /* __gtk_ardour_time_axis_view_item_h__ */