MuHua-123
78 lines
2.5 KiB
C#
78 lines
2.5 KiB
C#
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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#if ENABLE_INPUT_SYSTEM && UNITY_INPUT_SYSTEM_PACKAGE
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using UnityEngine.InputSystem;
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#endif
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namespace MuHua
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{
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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 UIFloatingWindow
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{
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/// <summary> 绑定的元素 </summary>
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public readonly VisualElement element;
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/// <summary> 绑定的画布 </summary>
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public readonly VisualElement canvas;
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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 => element.Q<VisualElement>("Window");
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public VisualElement Top => element.Q<VisualElement>("Top");
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public VisualElement Container => element.Q<VisualElement>("Container");
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public Label Title => element.Q<Label>("Title");
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public Button Close => element.Q<Button>("Close");
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public UIFloatingWindow(VisualElement element, VisualElement canvas)
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{
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this.element = element;
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this.canvas = canvas;
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Top.RegisterCallback<PointerDownEvent>(TopDown);
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canvas.RegisterCallback<PointerUpEvent>((evt) => isDownMove = false);
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canvas.RegisterCallback<PointerLeaveEvent>((evt) => isDownMove = false);
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Close.clicked += () => { SetActive(false); };
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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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{
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isDownMove = true;
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pointerPosition = UITool.GetMousePosition();
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originalPosition = Window.transform.position;
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}
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/// <summary> 设置活动状态 </summary>
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public virtual void SetActive(bool active)
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{
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Window.EnableInClassList("window-hidden", !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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{
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if (!isDownMove) { return; }
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Vector3 mousePosition = UITool.GetMousePosition();
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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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