137 lines
3.3 KiB
C++
137 lines
3.3 KiB
C++
// Copyright (c) 2016-2018 Easy2D - 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 "../base/Node.h"
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#include <functional>
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namespace easy2d
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{
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namespace ui
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{
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class Button
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: public Node
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{
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E2D_DISABLE_COPY(Button);
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typedef std::function<void()> Callback;
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public:
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Button();
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explicit Button(
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Node * normal, /* 普通状态 */
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const Callback& func = nullptr /* 按钮点击后的回调函数 */
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);
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explicit Button(
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Node * normal, /* 普通状态 */
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Node * selected, /* 鼠标按下状态 */
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const Callback& func = nullptr /* 按钮点击后的回调函数 */
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);
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explicit Button(
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Node * normal, /* 普通状态 */
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Node * mouseover, /* 鼠标移入状态 */
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Node * selected, /* 鼠标按下状态 */
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const Callback& func = nullptr /* 按钮点击后的回调函数 */
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);
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explicit Button(
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Node * normal, /* 普通状态 */
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Node * mouseover, /* 鼠标移入状态 */
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Node * selected, /* 鼠标移入状态 */
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Node * disabled, /* 按钮禁用状态 */
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const Callback& func = nullptr /* 按钮点击后的回调函数 */
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);
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// 获取按钮状态是启用还是禁用
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bool IsEnable() const;
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// 设置按钮启用或禁用
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void SetEnabled(
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bool enabled
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);
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// 设置一般情况下显示的按钮
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virtual void SetNormal(
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Node * normal
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);
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// 设置鼠标移入按钮时显示的按钮
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virtual void SetMouseOver(
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Node * mouseover
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);
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// 设置鼠标按下按钮时显示的按钮
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virtual void SetSelected(
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Node * selected
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);
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// 设置按钮被禁用时显示的按钮
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virtual void SetDisabled(
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Node * disabled
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);
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// 设置按钮点击后的回调函数
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void SetCallbackOnClick(
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const Callback& func
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);
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// 设置支点位置
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// 默认为 (0, 0), 范围 [0, 1]
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virtual void SetPivot(
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float pivot_x,
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float pivot_y
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) override;
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private:
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// 按钮状态枚举
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enum class Status { Normal, Mouseover, Selected };
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// 设置按钮状态
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virtual void SetStatus(
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Status status
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);
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// 刷新按钮显示
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virtual void UpdateVisible();
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// 分发鼠标消息
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virtual bool Dispatch(
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const MouseEvent& e,
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bool handled
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) override;
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// 遍历节点
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virtual void Visit() override;
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private:
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Node * normal_;
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Node * mouseover_;
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Node * selected_;
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Node * disabled_;
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bool enabled_;
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bool is_selected_;
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Status status_;
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Callback callback_;
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};
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}
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} |