MuHua-123
82 lines
2.6 KiB
C#
82 lines
2.6 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.UIElements;
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namespace MuHua {
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/// <summary>
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/// 悬浮窗口
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/// </summary>
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public abstract class UIWindow : ModuleUIPanel, UIControl {
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/// <summary> 绑定的画布 </summary>
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public readonly VisualElement canvas;
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/// <summary> 隐藏的USS类名 </summary>
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public string hideClassName = "document-page-hide";
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private bool isDownMove;
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private Vector3 pointerPosition;
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private Vector3 originalPosition;
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public VisualElement Window => Q<VisualElement>("Window");
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public VisualElement Top => Q<VisualElement>("Top");
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public VisualElement Container => Q<VisualElement>("Container");
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public Label Title => Q<Label>("Title");
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public VisualElement Close => Q<VisualElement>("Close");
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public UIWindow(VisualElement element, VisualElement canvas) : base(element) {
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this.canvas = canvas;
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Top.RegisterCallback<PointerDownEvent>(TopDown);
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canvas.RegisterCallback<PointerUpEvent>(DraggerUpOrLeave);
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canvas.RegisterCallback<PointerLeaveEvent>(DraggerUpOrLeave);
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Close.RegisterCallback<ClickEvent>(CloseButton);
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}
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/// <summary> 解绑事件，防止内存泄漏 </summary>
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public virtual void Dispose() {
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Top.UnregisterCallback<PointerDownEvent>(TopDown);
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canvas.UnregisterCallback<PointerUpEvent>(DraggerUpOrLeave);
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canvas.UnregisterCallback<PointerLeaveEvent>(DraggerUpOrLeave);
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Close.UnregisterCallback<ClickEvent>(CloseButton);
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}
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/// <summary> 按下Top </summary>
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private void TopDown(PointerDownEvent evt) {
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isDownMove = true;
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pointerPosition = UITool.GetMousePosition(canvas);
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originalPosition = Window.transform.position;
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}
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/// <summary> 鼠标松开或离开 </summary>
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private void DraggerUpOrLeave(EventBase evt) {
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isDownMove = false;
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}
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/// <summary> 关闭按钮 </summary>
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private void CloseButton(EventBase evt) {
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Settings(false);
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}
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/// <summary> 设置活动状态 </summary>
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public virtual void Settings(bool active) {
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element.EnableInClassList(hideClassName, !active);
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}
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/// <summary> 更新状态 </summary>
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public virtual void Update() {
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if (!isDownMove) { return; }
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Vector3 mousePosition = UITool.GetMousePosition(canvas);
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Vector3 offset = mousePosition - pointerPosition;
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Vector3 position = originalPosition + new Vector3(offset.x, -offset.y);
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float width = canvas.resolvedStyle.width - Window.resolvedStyle.width;
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float height = canvas.resolvedStyle.height - Window.resolvedStyle.height;
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position.x = Mathf.Clamp(position.x, 0, width);
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position.y = Mathf.Clamp(position.y, 0, height);
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Window.transform.position = position;
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}
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}
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}
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