1 #ifndef MSP_GLTK_WIDGET_H_
2 #define MSP_GLTK_WIDGET_H_
5 #include <msp/datafile/objectloader.h>
6 #include <msp/gl/renderer.h>
8 #include "inputmethod.h"
21 Base class for all widgets.
25 friend class Container;
28 class Loader: public DataFile::ObjectLoader<Widget>
33 void position(int, int);
34 void size(unsigned, unsigned);
35 void style(const std::string &);
38 sigc::signal<void, bool> signal_visibility_changed;
39 sigc::signal<void> signal_autosize_changed;
40 sigc::signal<void> signal_request_focus;
41 sigc::signal<void> signal_grab_pointer;
42 sigc::signal<void> signal_ungrab_pointer;
43 sigc::signal<void, const Time::TimeDelta &> signal_request_animation;
47 std::string style_name;
55 Time::TimeDelta anim_interval;
59 Widget(const Widget &);
60 Widget &operator=(const Widget &);
64 /// Returns the name of the widget class. Used for style lookup.
65 virtual const char *get_class() const { return "widget"; }
67 void set_position(int, int);
68 void set_size(unsigned, unsigned);
70 void autosize(Geometry &) const;
72 virtual void autosize_special(const Part &, Geometry &) const { };
74 void set_geometry(const Geometry &);
75 const Geometry &get_geometry() const { return geom; }
77 void map_coords_to_ancestor(int &, int &, const Widget &) const;
80 /** Sets the widget's parent Container. The widget must be unparented when
81 calling this function with a non-null parameter. */
82 void set_parent(Container *);
84 Container *get_parent() const { return parent; }
86 /** Finds the closest ancestor of a specific type. */
88 T *find_ancestor() const
90 for(Widget *w=parent; w; w=w->get_parent())
91 if(T *tw = dynamic_cast<T *>(w))
96 /** Sets the widget style. The name of the resource to be looked up is
97 constructed by concatenating the widget class and the style name with a
99 void set_style(const std::string &);
100 const Style &get_style() const { return *style; }
103 /** Gets a style object from the resource collection based on the class and
104 style names of the widget. */
108 void set_tooltip(const std::string &);
109 const std::string &get_tooltip() const { return tooltip; }
111 void set_visible(bool);
112 bool is_visible() const { return visible; }
113 InputType get_input_type() const { return input_type; }
114 bool is_focusable() const { return visible && input_type!=INPUT_NONE; }
116 void set_enabled(bool);
117 bool is_enabled() const { return !(state&DISABLED); }
120 void set_focusable(bool);
123 void set_state(State s) { set_state(s, s); }
124 void clear_state(State s) { set_state(s, NORMAL); }
125 void set_state(State, State);
127 State get_state() const { return state; }
130 void set_animation_interval(const Time::TimeDelta &);
131 void stop_animation();
133 const Time::TimeDelta &get_animation_interval() const { return anim_interval; }
137 virtual void rebuild_special(const Part &);
140 void render(GL::Renderer &) const;
142 virtual void render_special(const Part &, GL::Renderer &) const { }
146 virtual void button_press(int, int, unsigned) { }
147 virtual void button_release(int, int, unsigned) { }
148 virtual void pointer_motion(int, int) { }
149 virtual void pointer_enter();
150 virtual void pointer_leave();
151 virtual void touch_press(int, int, unsigned);
152 virtual void touch_release(int, int, unsigned);
153 virtual void touch_motion(int, int, unsigned);
154 virtual bool key_press(unsigned, unsigned) { return false; }
155 virtual bool key_release(unsigned, unsigned) { return false; }
156 virtual bool character(wchar_t) { return false; }
157 virtual void focus_in();
158 virtual void focus_out();
159 virtual bool navigate(Navigation) { return false; }
160 virtual void animate(const Time::TimeDelta &) { }
162 virtual void on_geometry_change() { }
163 virtual void on_style_change() { }
164 virtual void on_reparent() { }