1 #ifndef MSP_GLTK_WIDGET_H_
2 #define MSP_GLTK_WIDGET_H_
5 #include <msp/datafile/objectloader.h>
18 Base class for all widgets. Derived classes should call update_style in
19 constructor, because it can't be done correctly in the Widget constructor.
23 friend class Container;
26 class Loader: public DataFile::ObjectLoader<Widget>
31 void position(int, int);
32 void size(unsigned, unsigned);
33 void style(const std::string &);
36 sigc::signal<void, bool> signal_visibility_changed;
37 sigc::signal<void> signal_autosize_changed;
38 sigc::signal<void> signal_request_focus;
39 sigc::signal<void> signal_grab_pointer;
40 sigc::signal<void> signal_ungrab_pointer;
44 std::string style_name;
57 Returns the name of the widget class. Used for style lookup.
59 virtual const char *get_class() const { return "widget"; }
61 void set_position(int, int);
62 void set_size(unsigned, unsigned);
63 virtual void autosize();
64 void set_geometry(const Geometry &);
65 const Geometry &get_geometry() const { return geom; }
69 Sets the widget's parent Container. The widget must be unparented when
70 calling this function with a non-null parameter.
72 void set_parent(Container *);
74 Container *get_parent() const { return parent; }
77 Sets the widget style. The final style name is constructed by concatenating
78 the widget class and the style name with a dash.
80 void set_style(const std::string &);
81 const Style &get_style() const { return *style; }
85 Gets a style object from the resource collection based on the class and
86 style names of the widget.
91 void set_tooltip(const std::string &);
92 const std::string &get_tooltip() const { return tooltip; }
94 void set_visible(bool);
95 bool is_visible() const { return visible; }
96 void set_focusable(bool);
97 bool is_focusable() const { return focusable; }
102 virtual void render_special(const Part &) const { }
106 virtual void button_press(int, int, unsigned) { }
107 virtual void button_release(int, int, unsigned) { }
108 virtual void pointer_motion(int, int) { }
109 virtual void pointer_enter();
110 virtual void pointer_leave();
111 virtual void key_press(unsigned, unsigned) { }
112 virtual void key_release(unsigned, unsigned) { }
113 virtual void character(wchar_t) { }
114 virtual void focus_in();
115 virtual void focus_out();
117 virtual void on_geometry_change() { }
118 virtual void on_style_change() { }
119 virtual void on_reparent() { }