X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fwidget.h;h=2fdc68c34c778e34f4ebf72ba237921eeb2f54fb;hb=c72566cd7f8252eb386c753ceeafa8a324d1120b;hp=f64e2ea08235c1a9f41e47059c813c3ce49acf30;hpb=c1f038acb91eb3bfaa34dfd4729d19ed3f871a42;p=libs%2Fgltk.git

diff --git a/source/widget.h b/source/widget.h
index f64e2ea..2fdc68c 100644
--- a/source/widget.h
+++ b/source/widget.h
@@ -1,3 +1,10 @@
+/* $Id$
+
+This file is part of libmspgltk
+Copyright © 2007-2009  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
 #ifndef MSP_GLTK_WIDGET_H_
 #define MSP_GLTK_WIDGET_H_
 
@@ -8,41 +15,117 @@
 namespace Msp {
 namespace GLtk {
 
+class Container;
 class Part;
 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.
+*/
 class Widget
 {
 public:
-	virtual ~Widget() { }
-	void set_position(int, int);
-	void set_size(unsigned, unsigned);
-	void set_geometry(const Geometry &);
-	void set_style(const std::string &);
-	const Geometry &get_geometry() const { return geom; }
-	void render() const;
-	bool button_press(int, int, unsigned);
-	bool button_release(int, int, unsigned);
-	bool pointer_motion(int, int);
+	class Loader: public Msp::DataFile::Loader
+	{
+	protected:
+		Widget &wdg;
+
+	public:
+		Loader(Widget &);
+		Widget &get_object() const { return wdg; }
+	private:
+		void position(int, int);
+		void size(unsigned, unsigned);
+		void style(const std::string &);
+	};
+
+	sigc::signal<void, bool> signal_visibility_changed;
+	sigc::signal<void> signal_request_focus;
+	sigc::signal<void> signal_grab_pointer;
+	sigc::signal<void> signal_ungrab_pointer;
+
 protected:
 	const Resources &res;
 	Geometry geom;
 	std::string style_name;
 	const Style *style;
 	State state;
+	bool visible;
+	bool focusable;
+	Container *parent;
+	std::string tooltip;
 
 	Widget(const Resources &);
+public:
+	virtual ~Widget();
+
+	void set_position(int, int);
+	void set_size(unsigned, unsigned);
+	virtual void autosize() { }
+	void set_geometry(const Geometry &);
+	const Geometry &get_geometry() const { return geom; }
+
+	/**
+	Sets the widget style.  The final style name is constructed by concatenating
+	the widget class and the style name with a dash.
+	*/
+	void set_style(const std::string &);
+	const Style &get_style() const { return *style; }
+
+	void set_tooltip(const std::string &);
+	const std::string &get_tooltip() const { return tooltip; }
+
+	void set_visible(bool);
+	bool is_visible() const { return visible; }
+	void set_focusable(bool);
+	bool is_focusable() const { return focusable; }
+	void set_focus();
+
+	void render() const;
+protected:
+	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();
-	virtual void render_part(const Part &) const;
-	void render_graphic(const Part &) const;
-	void render_text(const Part &, const std::string &) const;
-	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() { }
+
+	/**
+	Sets the widget's parent Panel.  The widget must be unparented when calling
+	this function with a nonzero parameter.
+	*/
+	void set_parent(Container *);
+
+	/**
+	A helper function to set the parent of another widget.
+	*/
+	void set_parent(Widget &, Container *);
+
+	// More events
+	virtual void on_geometry_change() { }
+	virtual void on_style_change() { }
+	virtual void on_reparent() { }
 };
 
 } // namespace GLtk