EmsiaetKadosh
106 lines
2.9 KiB
C++
106 lines
2.9 KiB
C++
//
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// Created by EmsiaetKadosh on 25-1-14.
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//
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#pragma once
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#include "def.h"
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#include "Renderer.h"
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enum class MouseActionCode : char {
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MAC_MOVE, MAC_HOVER, MAC_DOWN, MAC_UP, MAC_DOUBLE
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};
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class Widget : public IRenderable {
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protected:
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int left = 0, top = 0, width = 0, height = 0;
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mutable bool hasMouse = false;
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public:
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using Action = Function<void(int)>;
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double x, y, w, h;
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Action hover;// 传入int忽略
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Action longHover;// 传入int表示时间
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Action mouseDown;// 传入int表示变更按键。0左, 1中, 2右
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Action mouseUp;// 传入int表示变更按键。0左, 1中, 2右
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Action mouseLeave;// 传入int忽略
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Action mouseClick;// 传入int表示变更按键。0x0左, 0x1中, 0x2右；0xf表示是否双击
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explicit Widget(const double x, const double y, const double w, const double h) : x(x), y(y), w(w), h(h) {}
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void render() const noexcept override {}
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virtual void onResize() {}
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virtual bool isMouseIn(int x, int y) noexcept {
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x -= left;
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y -= top;
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return 0 <= x and x <= width and 0 <= y and y <= height;
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}
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virtual void onHover(const int value) noexcept { if (hover) hover(value); }
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virtual void onLongHover(const int value) noexcept { if (longHover) longHover(value); }
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virtual void onMouseDown(const int value) noexcept { if (mouseDown) mouseDown(value); }
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virtual void onMouseUp(const int value) noexcept { if (mouseUp) mouseUp(value); }
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virtual void onMouseLeave(const int value) noexcept { if (mouseLeave) mouseLeave(value); }
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virtual void onMouseClick(const int value) noexcept { if (mouseClick) mouseClick(value); }
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virtual void passEvent(int action, int value, int x, int y) noexcept {
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if (!isMouseIn(x, y)) {
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if (hasMouse) onMouseLeave(0);
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hasMouse = false;
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}
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hasMouse = true;
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switch (action & 0xf) {
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case MouseActionCode::MAC_HOVER:
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onLongHover(0);
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break;
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case MouseActionCode::MAC_MOVE:
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onHover(0);
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break;
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case MouseActionCode::MAC_DOWN:
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onMouseDown(value);
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break;
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case MouseActionCode::MAC_UP:
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onMouseUp(value);
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break;
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case MouseActionCode::MAC_DOUBLE:
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onMouseClick(1);
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break;
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default:
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}
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}
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};
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class Window : public IRenderable {
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protected:
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List<Widget*> widgets;
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Window() = default;
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public:
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/**
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* 在Game.setWindow()时，本窗口开启时调用。
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* 不应当外部调用。
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* 如果返回false，则拒绝设置窗口。
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* @return 是否允许将显示窗口设为自身
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*/
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virtual bool onOpen() = 0;
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/**
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* 在Game.setWindow()时，本窗口关闭时调用。
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* 不应当外部调用。
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* 注意，关闭未必就是删除。
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*/
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virtual void onClose() = 0;
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virtual void onResize();
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};
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class FloatWindow final : public Window {
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public:
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void render() const noexcept override;
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bool onOpen() override { return true; }
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void onClose() override {}
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};
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class Button final : public Widget {
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public:
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explicit Button(const double x, const double y, const double w, const double h) : Widget(x, y, w, h) {}
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};
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