334 lines
6.5 KiB
C++
334 lines
6.5 KiB
C++
// Copyright (c) 2016-2018 Kiwano - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#pragma once
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#include <typeinfo>
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#include <typeindex>
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#include <kiwano/core/common.h>
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#include <kiwano/math/math.h>
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#include <kiwano/core/keys.h>
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namespace kiwano
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{
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class Actor;
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/// \~chinese
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/// @brief 事件类型
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class EventType
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: public std::type_index
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{
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class Dummy { };
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public:
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/// \~chinese
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/// @brief 构建事件类型
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EventType() : std::type_index(typeid(EventType::Dummy)) {}
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/// \~chinese
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/// @brief 构建事件类型
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/// @param info 事件标识符
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EventType(const type_info& info) : std::type_index(info) {}
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/// \~chinese
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/// @brief 构建事件类型
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/// @param index 事件标识符
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EventType(const std::type_index& index) : std::type_index(index) {}
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};
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#define KGE_EVENT(EVENT_TYPE) ::kiwano::EventType(typeid(EVENT_TYPE))
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/**
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* \~chinese
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* \defgroup Events 事件
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*/
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/**
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* \addtogroup Events
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* @{
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*/
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/// \~chinese
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/// @brief 事件
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class KGE_API Event
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{
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public:
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/// \~chinese
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/// @brief 构造事件
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Event(EventType const& type);
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virtual ~Event();
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/// \~chinese
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/// @brief 获取类型事件
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inline const EventType& GetType() const
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{
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return type_;
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}
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/// \~chinese
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/// @brief 判断事件类型
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/// @return 是否是指定事件类型
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template <
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typename _Ty,
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typename = typename std::enable_if<std::is_base_of<Event, _Ty>::value, int>::type
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>
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inline bool IsType() const
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{
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return type_ == KGE_EVENT(_Ty);
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}
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/// \~chinese
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/// @brief 转换为其他类型事件
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/// @throw std::bad_cast 类型无法转换时抛出
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template <
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typename _Ty,
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typename = typename std::enable_if<std::is_base_of<Event, _Ty>::value, int>::type
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>
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inline const _Ty& Cast() const
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{
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return dynamic_cast<const _Ty&>(*this);
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}
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/// \~chinese
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/// @brief 转换为其他类型事件
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/// @throw std::bad_cast 类型无法转换时抛出
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template <
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typename _Ty,
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typename = typename std::enable_if<std::is_base_of<Event, _Ty>::value, int>::type
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>
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inline _Ty& Cast()
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{
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return dynamic_cast<_Ty&>(*this);
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}
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/// \~chinese
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/// @brief 安全转换为其他类型事件
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/// @throw std::bad_cast 类型无法转换时抛出
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template <
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typename _Ty,
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typename = typename std::enable_if<std::is_base_of<Event, _Ty>::value, int>::type
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>
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inline const _Ty& SafeCast() const
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{
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if (!IsType<_Ty>())
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throw std::bad_cast();
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return Cast<_Ty>();
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}
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/// \~chinese
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/// @brief 安全转换为其他类型事件
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/// @throw std::bad_cast 类型无法转换时抛出
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template <
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typename _Ty,
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typename = typename std::enable_if<std::is_base_of<Event, _Ty>::value, int>::type
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>
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inline _Ty& SafeCast()
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{
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return const_cast<_Ty&>(const_cast<const Event*>(this)->SafeCast<_Ty>());
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}
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private:
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const EventType type_;
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};
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/// \~chinese
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/// @brief 事件特性：判断是否是事件类型
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template <typename _Ty>
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class IsEvent : public std::bool_constant<std::is_base_of<Event, _Ty>::value || std::is_same<Event, _Ty>::value> {};
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/// \~chinese
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/// @brief 鼠标事件
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class KGE_API MouseEvent
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: public Event
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{
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public:
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Point pos; ///< 鼠标位置
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bool left_btn_down; ///< 鼠标左键是否按下
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bool right_btn_down; ///< 鼠标右键是否按下
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Actor* target; ///< 目标
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MouseEvent(EventType const& type);
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};
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/// \~chinese
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/// @brief 鼠标移动事件
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class KGE_API MouseMoveEvent
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: public MouseEvent
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{
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public:
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MouseMoveEvent();
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};
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/// \~chinese
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/// @brief 鼠标按键按下事件
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class KGE_API MouseDownEvent
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: public MouseEvent
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{
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public:
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MouseButton::Value button; ///< 鼠标键值
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MouseDownEvent();
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};
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/// \~chinese
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/// @brief 鼠标按键抬起事件
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class KGE_API MouseUpEvent
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: public MouseEvent
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{
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public:
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MouseButton::Value button; ///< 鼠标键值
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MouseUpEvent();
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};
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/// \~chinese
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/// @brief 鼠标点击事件
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class KGE_API MouseClickEvent
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: public MouseEvent
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{
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public:
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MouseButton::Value button; ///< 鼠标键值
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MouseClickEvent();
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};
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/// \~chinese
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/// @brief 鼠标移入事件
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class KGE_API MouseHoverEvent
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: public MouseEvent
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{
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public:
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MouseHoverEvent();
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};
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/// \~chinese
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/// @brief 鼠标移出事件
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class KGE_API MouseOutEvent
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: public MouseEvent
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{
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public:
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MouseOutEvent();
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};
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/// \~chinese
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/// @brief 鼠标滚轮事件
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class KGE_API MouseWheelEvent
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: public MouseEvent
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{
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public:
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float wheel; ///< 滚轮值
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MouseWheelEvent();
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};
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/// \~chinese
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/// @brief 键盘按下事件
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class KGE_API KeyDownEvent
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: public Event
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{
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public:
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KeyCode::Value code; ///< 键值
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KeyDownEvent();
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};
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/// \~chinese
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/// @brief 键盘抬起事件
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class KGE_API KeyUpEvent
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: public Event
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{
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public:
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KeyCode::Value code; ///< 键值
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KeyUpEvent();
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};
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/// \~chinese
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/// @brief 键盘字符事件
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class KGE_API KeyCharEvent
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: public Event
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{
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public:
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char value; ///< 字符
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KeyCharEvent();
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};
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/// \~chinese
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/// @brief 窗口移动事件
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class KGE_API WindowMovedEvent
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: public Event
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{
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public:
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int x; ///< 窗口左上角 x 坐标
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int y; ///< 窗口左上角 y 坐标
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WindowMovedEvent();
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};
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/// \~chinese
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/// @brief 窗口大小变化事件
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class KGE_API WindowResizedEvent
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: public Event
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{
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public:
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int width; ///< 窗口宽度
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int height; ///< 窗口高度
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WindowResizedEvent();
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};
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/// \~chinese
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/// @brief 窗口焦点变化事件
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class KGE_API WindowFocusChangedEvent
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: public Event
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{
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public:
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bool focus; ///< 是否获取到焦点
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WindowFocusChangedEvent();
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};
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/// \~chinese
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/// @brief 窗口标题更改事件
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class KGE_API WindowTitleChangedEvent
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: public Event
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{
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public:
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String title; ///< 标题
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WindowTitleChangedEvent();
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};
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/// \~chinese
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/// @brief 窗口关闭事件
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class KGE_API WindowClosedEvent
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: public Event
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{
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public:
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WindowClosedEvent();
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};
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/** @} */
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}
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