user interface library

1 files changed, 147 insertions, 0 deletions

diff --git a/src/ui/widget.h b/src/ui/widget.h
new file mode 100644
index 0000000..97c6a01
--- /dev/null
+++ b/src/ui/widget.h
@@ -0,0 +1,147 @@
+/*
+   ui/widget.h
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#ifndef __INCLUDED_UI_WIDGET_H__
+#define __INCLUDED_UI_WIDGET_H__
+
+#include <string>
+#include <list>
+
+#include "math/vector2f.h"
+#include "ui/palette.h"
+
+namespace ui {
+
+class Widget {
+
+public:
+	/// create a new widget
+	Widget(Widget *parent=0);
+
+	/// destroy a widget
+	virtual ~Widget();
+
+	/* -- inspectors -------------------------------------------- */
+	inline bool visible() const { return widget_visible; }
+
+	inline math::Vector2f &location() { return widget_location; }
+
+	inline math::Vector2f &size() { return widget_size; }
+
+	inline float const left() const { return widget_location.x; }
+
+	inline float const top() const { return widget_location.y; }
+	
+	inline float const width() const { return widget_size.x; }
+
+	inline float const height() const { return widget_size.y; }
+
+	inline Palette const *palette() const { return widget_palette; }
+
+	inline std::string const &label() const { return widget_label; }
+
+	inline bool border() const { return widget_border; }
+
+	inline bool background() { return widget_background; }
+
+	inline Widget *parent() { return widget_parent; }
+
+
+	/* -- mutators --------------------------------------------- */
+
+	/// show the widget
+	void show();
+
+	/// hide the widget
+	void hide();
+
+	/// set location of the top-left corner
+	void set_location(float const x, float const y);
+
+	/// set the widgets width and height
+	void set_size(float const w, float const h);
+
+	/// set the widgets width
+	void set_width(float const w);
+
+	/// set the widgets height
+	void set_height(float const h);
+
+	/// set the widgets palette
+	void set_palette(Palette *palette);
+
+	/// set the widgets label
+	void set_label(std::string const &label);
+	
+	/// set the widgets label
+	void set_label(char const *label);
+
+	void set_border(bool border);
+
+	void set_background(bool background);
+
+	/// resize event
+	virtual void resize_event();
+
+	/// draw event
+	virtual void draw_event();
+
+	/// type definition for child widgets
+	typedef std::list<Widget *> Children;
+
+	/// child widgets
+	inline Children &children() { return widget_children; }	
+
+protected:
+	/// draw the widget
+	virtual void draw();
+
+	/// resize the widget
+	virtual void resize();
+
+	/// draw the widget background
+	virtual void draw_background();
+
+	/// draw the widget border
+	virtual void draw_border();
+
+	/// list widget content
+	size_t list(size_t indent);
+
+	/// map local widget coordinates to global coordinates
+	inline math::Vector2f to_global(math::Vector2f v) {
+		Widget *parent = widget_parent;
+		while (parent) {
+			v += parent->location();
+			parent = parent->widget_parent;
+		}
+		return v;
+	}
+
+private:
+	
+	Palette			*widget_palette;
+	bool			 widget_visible;
+	bool			 widget_background;
+	bool			 widget_border;
+	math::Vector2f		 widget_location;
+	math::Vector2f		 widget_size;
+	std::string		 widget_label;
+	
+	Children		 widget_children;
+	Widget			*widget_parent;
+	
+	Children::iterator find_child(Widget *child);
+
+	void add_child(Widget *child);
+	
+	void remove_child(Widget *child);
+};
+
+}
+
+#endif // __INCLUDED_UI_WIDGET_H__
+