Magic_Game/Easy2D/base/Event.hpp

// Copyright (c) 2016-2018 Easy2D - Nomango
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#pragma once
#include "keys.hpp"

namespace easy2d
{

	// <20><><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>
	struct MouseEvent
	{
		float x;
		float y;
		bool left_btn_down;		// <20><><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
		bool right_btn_down;	// <20>Ҽ<EFBFBD><D2BC>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>

		union
		{
			struct	// Events::MouseDown | Events::MouseUp | Events::MouseClick
			{
				int button;
			};

			struct	// Events::MouseWheel
			{
				float wheel;
			};
		};

		static bool Check(UINT type);
	};

	// <20><><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>
	struct KeyboardEvent
	{
		int count;
		union
		{
			struct	// Events::KeyDown | Events::KeyUp
			{
				int code;		// enum KeyCode
			};

			struct	// Events::Char
			{
				char c;
			};
		};

		static bool Check(UINT type);
	};

	// <20><><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>
	struct WindowEvent
	{
		union
		{
			struct		// Events::WindowMoved
			{
				int x;
				int y;
			};

			struct		// Events::WindowResized
			{
				int width;
				int height;
			};

			struct		// Events::WindowFocusChanged
			{
				bool focus;
			};

			struct		// Events::WindowTitleChanged
			{
				const wchar_t* title;
			};
		};

		static bool Check(UINT type);
	};

	// <20>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>¼<EFBFBD>
	struct CustomEvent
	{
		void* data;
	};

	class Node;

	// <20>¼<EFBFBD>
	struct E2D_API Event
	{
		enum Type : UINT
		{
			First,

			// <20><><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>
			MouseFirst,
			MouseMove,			// <20>ƶ<EFBFBD>
			MouseBtnDown,		// <20><><EFBFBD>갴<EFBFBD><EAB0B4>
			MouseBtnUp,			// <20><><EFBFBD><EFBFBD>̧<EFBFBD><CCA7>
			MouseWheel,			// <20><><EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD>
			MouseHover,			// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			MouseOut,			// <20><><EFBFBD><EFBFBD><EFBFBD>Ƴ<EFBFBD>
			Click,				// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			MouseLast,

			// <20><><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>
			KeyFirst,
			KeyDown,			// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			KeyUp,				// <20><><EFBFBD><EFBFBD>̧<EFBFBD><CCA7>
			Char,				// <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
			KeyLast,

			// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
			WindowFirst,
			WindowMoved,		// <20><><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>
			WindowResized,		// <20><><EFBFBD>ڴ<EFBFBD>С<EFBFBD>仯
			WindowFocusChanged,	// <20><><EFBFBD>û<EFBFBD>ʧȥ<CAA7><C8A5><EFBFBD><EFBFBD>
			WindowTitleChanged,	// <20><><EFBFBD><EFBFBD><EFBFBD>仯
			WindowClosed,		// <20><><EFBFBD>ڱ<EFBFBD><DAB1>ر<EFBFBD>
			WindowLast,

			Last
		};

		UINT type;
		Node* target;

		union
		{
			MouseEvent mouse;
			KeyboardEvent key;
			WindowEvent win;
			CustomEvent custom;
		};

		Event(UINT type = Type::First) : type(type), target(nullptr) {}
	};


	// Check-functions

	inline bool MouseEvent::Check(UINT type)
	{
		return type > Event::MouseFirst && type < Event::MouseLast;
	}

	inline bool KeyboardEvent::Check(UINT type)
	{
		return type > Event::KeyFirst && type < Event::KeyLast;
	}

	inline bool WindowEvent::Check(UINT type)
	{
		return type > Event::WindowFirst && type < Event::WindowLast;
	}

}