Reorder event handling functions

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

diff --git a/source/widget.h b/source/widget.h
index b00849c1598873a6ae7ecdc0e76ff9a036539d76..2bf751a714f0db3a25bc45015894181fe3c96562 100644 (file)
--- a/source/widget.h
+++ b/source/widget.h
@@ -17,8 +17,7 @@ class Resources;
 class Style;
 
 /**
-Base class for all widgets.  Derived classes should call update_style in 
-constructor, because it can't be done correctly in the Widget constructor.
+Base class for all widgets.
 */
 class Widget
 {
@@ -50,9 +49,12 @@ protected:
        bool focusable;
        Container *parent;
        std::string tooltip;
-       std::list<CachedPart> cached_parts;
+       PartCache part_cache;
 
        Widget();
+private:
+       Widget(const Widget &);
+       Widget &operator=(const Widget &);
 public:
        virtual ~Widget();
 
@@ -61,10 +63,16 @@ public:
 
        void set_position(int, int);
        void set_size(unsigned, unsigned);
-       virtual void autosize();
+       void autosize();
+       void autosize(Geometry &) const;
+protected:
+       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. */
@@ -72,6 +80,16 @@ 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. */
@@ -92,14 +110,19 @@ 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 &, CachedPart &) { }
+       virtual void rebuild_special(const Part &);
 
 public:
        void render(GL::Renderer &) const;
@@ -113,6 +136,9 @@ public:
        virtual void pointer_motion(int, int) { }
        virtual void pointer_enter();
        virtual void pointer_leave();
+       virtual void touch_press(int, int, unsigned);
+       virtual void touch_release(int, int, unsigned);
+       virtual void touch_motion(int, int, unsigned);
        virtual void key_press(unsigned, unsigned) { }
        virtual void key_release(unsigned, unsigned) { }
        virtual void character(wchar_t) { }