Make autosize_special const and add a const autosize overload

[libs/gltk.git] / source / widget.h

diff --git a/source/widget.h b/source/widget.h
index 5c81b8056e6f409641095b2303513a95eff4d3ae..9caae9fb6216180654c9165dbe1893f2f1fec999 100644 (file)
--- a/source/widget.h
+++ b/source/widget.h
@@ -53,6 +53,9 @@ protected:
        PartCache part_cache;
 
        Widget();
+private:
+       Widget(const Widget &);
+       Widget &operator=(const Widget &);
 public:
        virtual ~Widget();
 
@@ -62,12 +65,15 @@ public:
        void set_position(int, int);
        void set_size(unsigned, unsigned);
        void autosize();
+       void autosize(Geometry &) const;
 protected:
-       virtual void autosize_special(const Part &, Geometry &) { }
+       virtual void autosize_special(const Part &, Geometry &) const { };
 public:
        void set_geometry(const Geometry &);
        const Geometry &get_geometry() const { return geom; }
 
+       void map_coords_to_ancestor(int &, int &, const Widget &) const;
+
 protected:
        /** Sets the widget's parent Container.  The widget must be unparented when
        calling this function with a non-null parameter. */
@@ -75,6 +81,16 @@ protected:
 public:
        Container *get_parent() const { return parent; }
 
+       /** Finds the closest ancestor of a specific type. */
+       template<typename T>
+       T *find_ancestor() const
+       {
+               for(Widget *w=parent; w; w=w->get_parent())
+                       if(T *tw = dynamic_cast<T *>(w))
+                               return tw;
+               return 0;
+       }
+
        /** Sets the widget style.  The name of the resource to be looked up is
        constructed by concatenating the widget class and the style name with a
        dash. */
@@ -95,12 +111,17 @@ public:
        void set_focusable(bool);
        bool is_focusable() const { return focusable; }
        void set_focus();
+       void set_enabled(bool);
+       bool is_enabled() const { return !(state&DISABLED); }
 
 protected:
        void set_state(State s) { set_state(s, s); }
        void clear_state(State s) { set_state(s, NORMAL); }
        void set_state(State, State);
+public:
+       State get_state() const { return state; }
 
+protected:
        void rebuild();
        virtual void rebuild_special(const Part &);