63 lines
2.0 KiB
C#
63 lines
2.0 KiB
C#
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using System;
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using UnityEngine;
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using UnityEngine.UIElements;
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namespace Unity.Cloud.Collaborate.Utilities
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{
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static class MenuUtilities
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{
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/// <summary>
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/// Corner of the anchor element the dialogue should anchor to.
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/// </summary>
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public enum AnchorPoint
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{
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TopLeft,
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TopRight,
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BottomLeft,
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BottomRight
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}
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/// <summary>
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/// Direction the dialogue should open from its anchor.
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/// </summary>
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public enum OpenDirection
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{
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UpLeft,
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UpRight,
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DownLeft,
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DownRight
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}
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/// <summary>
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/// Given an element and an anchor point, calculate the world coords to draw a menu at.
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/// </summary>
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/// <param name="e">Element to start at.</param>
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/// <param name="anchorPoint">Corner of the element to calculate.</param>
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/// <returns>World coordinates from the given values.</returns>
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public static (float X, float Y) GetMenuPosition(VisualElement e, AnchorPoint anchorPoint)
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{
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// Calculate position of the start corner.
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(float x, float y) anchorCoords;
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switch (anchorPoint)
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{
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case AnchorPoint.TopLeft:
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anchorCoords = (e.worldBound.xMin, e.worldBound.yMin);
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break;
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case AnchorPoint.TopRight:
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anchorCoords = (e.worldBound.xMax, e.worldBound.yMin);
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break;
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case AnchorPoint.BottomLeft:
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anchorCoords = (e.worldBound.xMin, e.worldBound.yMax);
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break;
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case AnchorPoint.BottomRight:
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anchorCoords = (e.worldBound.xMax, e.worldBound.yMax);
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break;
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default:
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throw new ArgumentOutOfRangeException(nameof(anchorPoint), anchorPoint, null);
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}
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return anchorCoords;
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}
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}
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}
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