3 This file is part of libmspgltk
4 Copyright © 2007-2009 Mikko Rasa, Mikkosoft Productions
5 Distributed under the LGPL
8 #ifndef MSP_GLTK_WIDGET_H_
9 #define MSP_GLTK_WIDGET_H_
24 Base class for all widgets. Derived classes should call update_style in
25 constructor, because it can't be done correctly in the Widget constructor.
30 class Loader: public Msp::DataFile::Loader
37 Widget &get_object() const { return wdg; }
39 void position(int, int);
40 void size(unsigned, unsigned);
41 void style(const std::string &);
44 sigc::signal<void, bool> signal_visibility_changed;
45 sigc::signal<void> signal_request_focus;
46 sigc::signal<void> signal_grab_pointer;
47 sigc::signal<void> signal_ungrab_pointer;
51 std::string style_name;
63 void set_position(int, int);
64 void set_size(unsigned, unsigned);
65 virtual void autosize() { }
66 void set_geometry(const Geometry &);
67 const Geometry &get_geometry() const { return geom; }
70 Sets the widget style. The final style name is constructed by concatenating
71 the widget class and the style name with a dash.
73 void set_style(const std::string &);
74 const Style &get_style() const { return *style; }
76 void set_tooltip(const std::string &);
77 const std::string &get_tooltip() const { return tooltip; }
79 void set_visible(bool);
80 bool is_visible() const { return visible; }
81 void set_focusable(bool);
82 bool is_focusable() const { return focusable; }
87 virtual void render_special(const Part &) const { }
91 virtual void button_press(int, int, unsigned) { }
92 virtual void button_release(int, int, unsigned) { }
93 virtual void pointer_motion(int, int) { }
94 virtual void pointer_enter();
95 virtual void pointer_leave();
96 virtual void key_press(unsigned, unsigned, wchar_t) { }
97 virtual void key_release(unsigned, unsigned) { }
98 virtual void focus_in();
99 virtual void focus_out();
103 Returns the name of the widget class. Used for style lookup.
105 virtual const char *get_class() const { return "widget"; }
108 Gets a style object from the resource collection based on the class and
109 style names of the widget.
113 static void update_style(Widget &);
116 Sets the widget's parent Panel. The widget must be unparented when calling
117 this function with a nonzero parameter.
119 void set_parent(Container *);
122 A helper function to set the parent of another widget.
124 static void set_parent(Widget &, Container *);
127 virtual void on_geometry_change() { }
128 virtual void on_style_change() { }
129 virtual void on_reparent() { }