/*
 * Copyright (c) 2004-2006  Kazunori "jagarl" Ueno
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __EVENT__
#define __EVENT__

#include "rect.h"
#include "SDL.h"

namespace Event {

	class Video;
	class Time;
	class Container;

	/*
	** マウスの press, ドラッグ、in/out を検出できる
	** focus がある時の left/right/space(==press) のキーを判別できる
	*/
	struct Video {
		public:
			virtual void Press(void) {}
			virtual void Release(void) {}
			virtual void Drag(int x_from, int y_from, int x_to, int y_to) {}
			virtual void Motion(int x, int y) {}
			virtual void In(void) {}
			virtual void Out(void) {}
			virtual void KeyLeft(void) {}
			virtual void KeyRight(void) {}

			int point_in(int x, int y); /* z or -1 を返す。大きいほど高いところにある */

			Video(Container& container);
			Video(Container& container, const Rect& init_rect);
			Video(Container& container, const Rect& init_rect, int z);
			void SetRegion(const Rect& new_rect);
			void SetZ(int new_z);
			void activate(void);
			void deactivate(void);
			virtual ~Video();

			Rect Region(void) const { return region;}
		private:
			Rect region;
			int z;
			Container& parent;
			bool activated;
			friend bool operator <(const Video& position1, const Video& position2);
	};

	struct Time {
		public:
			enum { NEVER_WAKE = 0xffffffffUL, FRAME_UPDATE = 0xfffffffeUL};
			virtual void Elapsed(unsigned int current_time) {wakeup_time = NEVER_WAKE; }; /* next: never elapsed */
			void SetWakeup(unsigned int new_wakeup_time) { wakeup_time = new_wakeup_time; }
			unsigned  Wakeup(void) const { return wakeup_time; }

			Time(Container& container);
			~Time();
		private:
			unsigned int wakeup_time;
			Container& parent;
	};

	struct Container {
#define MOUSE_LEFT 0
#define MOUSE_MIDDLE 1
#define MOUSE_RIGHT 2
#define MOUSE_UP 3
#define MOUSE_DOWN 4
#define KEY_SHIFT 10
#define BUTTON_MAX 32
		public:
			int button_pressed;
			int button_presscount[BUTTON_MAX];
			int current_time;

			void MousePos(int& x, int& y);
			bool Exec(unsigned int current_time);

			void Add(Video* item);
			void Delete(Video* item);

			void Add(Time* item);
			void Delete(Time* item);

			typedef bool (*motionfunc)(int x, int y, void* pointer);
			void RegisterGlobalMotionFunc(motionfunc, void* pointer); // マウスの移動のたびに呼び出される関数を登録する
			void DeleteGlobalMotionFunc(motionfunc, void* pointer);
			void RegisterGlobalPressFunc(motionfunc, void* pointer); // マウスのクリックのたびに呼び出される関数を登録する
			void DeleteGlobalPressFunc(motionfunc, void* pointer);

			Container(void);
			~Container(void);
			bool pressed(int mask);
			bool presscount(int mask);
		private:
			class ContainerImplVideo* pimpl_video;
			class ContainerImplTime* pimpl_time;
	};

} /* end of namespace Event */


#endif