- virtual void on_button_press(int, int, unsigned) { }
- virtual void on_button_release(int, int, unsigned) { }
- virtual void on_pointer_motion(int, int, unsigned) { }
- virtual void on_pointer_enter() { }
- virtual void on_pointer_leave() { }
+ virtual void render_special(const Part &) const { }
+
+public:
+ // Events
+ virtual void button_press(int, int, unsigned) { }
+ virtual void button_release(int, int, unsigned) { }
+ virtual void pointer_motion(int, int) { }
+ virtual void pointer_enter();
+ virtual void pointer_leave();
+ virtual void key_press(unsigned, unsigned, wchar_t) { }
+ virtual void key_release(unsigned, unsigned) { }
+ virtual void focus_in();
+ virtual void focus_out();
+
+protected:
+ /**
+ Returns the name of the widget class. Used for style lookup.
+ */
+ virtual const char *get_class() const { return "widget"; }
+
+ /**
+ Gets a style object from the resource collection based on the class and
+ style names of the widget.
+ */
+ void update_style();
+
+ /**
+ Sets the widget's parent Panel. The widget must be unparented when calling
+ this function with a nonzero parameter.
+ */
+ void set_parent(Panel *);
+
+ /**
+ A helper function to set the parent of another widget.
+ */
+ void set_parent(Widget &, Panel *);
+
+ // More events
+ virtual void on_geometry_change() { }
+ virtual void on_style_change() { }
+ virtual void on_reparent() { }