/*
 * UltraStar Deluxe - Karaoke Game
 *
 * UltraStar Deluxe is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING. If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 */

#ifndef DRAWABLE_CONTROL_HPP
#define DRAWABLE_CONTROL_HPP

#include <SDL/SDL.h>
#include <boost/thread/shared_mutex.hpp>
#include <boost/signals2.hpp>
#include <log4cpp/Category.hh>

#include "drawable.hpp"
#include "control.hpp"
#include "utils/point.hpp"
#include "utils/dimension.hpp"
#include "utils/rectangle.hpp"
#include "background.hpp"
#include "static.hpp"

namespace usdx
{
	class Container;

	class DrawableControl : public Drawable, public Control
	{
	private:
		static log4cpp::Category& log;

		/**
		 * Coordinates of the top-left corner of the control.
		 */
		Point<int> position;

		/**
		 * Size of the control.
		 */
		Dimension<int> size;

		/**
		 * If true, clipping is set-up before the component is drawn, to cut off
		 * all the drawing outside the specified size of the control.
		 */
		bool clipping_required;

		/**
		 * Whether the control should be able to get the focus.
		 */
		bool focusable;

		/**
		 * Background of the control. The background is drawn, before the real
		 * content is drawn.
		 */
		Background* background;

		/**
		 * Optional box around the control. Used for debugging.
		 */
		Static* debug_box;

		mutable boost::shared_mutex position_mutex;
		mutable boost::shared_mutex size_mutex;
		mutable boost::shared_mutex clipping_required_mutex;
		mutable boost::shared_mutex background_mutex;

	protected:
		Container* parent;

		class ContainerHelper
		{
		private:
			DrawableControl* self;

		public:
			ContainerHelper(DrawableControl*);
			virtual void add(Container*) const;
		};
		DrawableControl(Container*, const ContainerHelper&);

		bool is_clipping_required(void) const;
		void set_clipping_required(const bool);

		bool is_focusable(void) const;
		void set_focusable(const bool);

		/**
		 * Function get called, if the control should draw itself it the
		 * current position on the OpenGL screen. If clipping is required, the
		 * clipping gets set-up before this function gets called.
		 */
		virtual void draw(void);

	public:
		DrawableControl(Container*);
		virtual ~DrawableControl();

		/**
		 * Force the control to redraw it self.
		 */
		void repaint(void);

		virtual void set_position(const Point<int>& position);
		virtual void set_position(int left, int top);

		const Point<int>& get_position(void) const;
		int get_left(void) const;
		int get_top(void) const;

		virtual void set_size(const Dimension<int>& size);
		virtual void set_size(int width, int height);

		const Dimension<int>& get_size(void) const;
		int get_width(void) const;
		int get_height(void) const;

		Container* get_parent(void) const;
		void remove_parent(void);

		void set_background(Background*);
		const Background* get_background(void) const;

		const Rectangle<int> get_absolut_rect(void) const;
		virtual DrawableControl* get_component_at(const Point<int>& p);

		virtual void mouse_move(const Point<int>& p);
		virtual void mouse_down(uint8_t button, const Point<int>& p);
		virtual void mouse_up(uint8_t button, const Point<int>& p);
		virtual void mouse_enter(void);
		virtual void mouse_leave(void);

		virtual void mouse_click(uint8_t button, const Point<int>& p);
		virtual void mouse_dbl_click(uint8_t button, const Point<int>& p);

		boost::signals2::signal<void (const Point<int>&)> on_mouse_move;
		boost::signals2::signal<void (uint8_t, const Point<int>&)> on_mouse_down;
		boost::signals2::signal<void (uint8_t, const Point<int>&)> on_mouse_up;
		boost::signals2::signal<void (void)> on_mouse_enter;
		boost::signals2::signal<void (void)> on_mouse_leave;

		boost::signals2::signal<void (uint8_t, const Point<int>&)> on_mouse_click;
		boost::signals2::signal<void (uint8_t, const Point<int>&)> on_mouse_dbl_click;

	};
};

#endif