using System;

using System.Collections.Generic;

namespace UnityEngine.UI

{

[AddComponentMenu("UI/Effects/Outline", 15)]

public class Outline : Shadow

{

protected Outline()

{

}

public override void ModifyMesh(VertexHelper vh)

{

if (this.IsActive())

{

List<UIVertex> list = ListPool<UIVertex>.Get();

vh.GetUIVertexStream(list);

int num = list.Count * 5;

if (list.Capacity < num)

{

list.Capacity = num;

}

int start = 0;

int count = list.Count;

base.ApplyShadowZeroAlloc(list, base.effectColor, start, list.Count, base.effectDistance.x, base.effectDistance.y);

start = count;

count = list.Count;

base.ApplyShadowZeroAlloc(list, base.effectColor, start, list.Count, base.effectDistance.x, -base.effectDistance.y);

start = count;

count = list.Count;

base.ApplyShadowZeroAlloc(list, base.effectColor, start, list.Count, -base.effectDistance.x, base.effectDistance.y);

start = count;

count = list.Count;

base.ApplyShadowZeroAlloc(list, base.effectColor, start, list.Count, -base.effectDistance.x, -base.effectDistance.y);

vh.Clear();

vh.AddUIVertexTriangleStream(list);

ListPool<UIVertex>.Release(list);

}

}

}

}