niko
62 lines
1.5 KiB
C#
62 lines
1.5 KiB
C#
using System;
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using System.Collections.Generic;
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namespace UnityEngine.UI
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{
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// Token: 0x02000083 RID: 131
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public static class Clipping
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{
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// Token: 0x060004EE RID: 1262 RVA: 0x0001A650 File Offset: 0x00018A50
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public static Rect FindCullAndClipWorldRect(List<RectMask2D> rectMaskParents, out bool validRect)
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{
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Rect rect;
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if (rectMaskParents.Count == 0)
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{
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validRect = false;
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rect = default(Rect);
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}
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else
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{
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Rect rect2 = rectMaskParents[0].canvasRect;
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for (int i = 0; i < rectMaskParents.Count; i++)
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{
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rect2 = Clipping.RectIntersect(rect2, rectMaskParents[i].canvasRect);
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}
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bool flag = rect2.width <= 0f || rect2.height <= 0f;
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if (flag)
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{
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validRect = false;
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rect = default(Rect);
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}
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else
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{
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Vector3 vector = new Vector3(rect2.x, rect2.y, 0f);
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Vector3 vector2 = new Vector3(rect2.x + rect2.width, rect2.y + rect2.height, 0f);
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validRect = true;
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rect = new Rect(vector.x, vector.y, vector2.x - vector.x, vector2.y - vector.y);
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}
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}
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return rect;
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}
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// Token: 0x060004EF RID: 1263 RVA: 0x0001A774 File Offset: 0x00018B74
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private static Rect RectIntersect(Rect a, Rect b)
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{
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float num = Mathf.Max(a.x, b.x);
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float num2 = Mathf.Min(a.x + a.width, b.x + b.width);
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float num3 = Mathf.Max(a.y, b.y);
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float num4 = Mathf.Min(a.y + a.height, b.y + b.height);
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Rect rect;
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if (num2 >= num && num4 >= num3)
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{
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rect = new Rect(num, num3, num2 - num, num4 - num3);
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}
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else
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{
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rect = new Rect(0f, 0f, 0f, 0f);
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}
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return rect;
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}
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}
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}
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