public void FitSize()
{
if (fitWidth || fitHeight)
{
Vector2 sizeDelta = rect_transform.sizeDelta;
if (fitWidth)
{
sizeDelta.x = 0f;
}
if (fitHeight)
{
sizeDelta.y = 0f;
}
float num = float.NegativeInfinity;
float num2 = float.PositiveInfinity;
float num3 = float.PositiveInfinity;
float num4 = float.NegativeInfinity;
int childCount = base.transform.childCount;
for (int i = 0; i < childCount; i++)
{
Transform child = base.transform.GetChild(i);
LayoutElement component = child.gameObject.GetComponent <LayoutElement>();
if (((Object)component == (Object)null || !component.ignoreLayout) && child.gameObject.activeSelf)
{
RectTransform rectTransform = child as RectTransform;
if (fitWidth)
{
if (findTotalBounds)
{
Vector2 positionRelativeToTopLeftPivot = GetPositionRelativeToTopLeftPivot(rectTransform);
float x = positionRelativeToTopLeftPivot.x;
Vector2 sizeDelta2 = rectTransform.sizeDelta;
float num5 = x + sizeDelta2.x;
if (num5 > num4)
{
num4 = num5;
}
Vector2 positionRelativeToTopLeftPivot2 = GetPositionRelativeToTopLeftPivot(rectTransform);
float x2 = positionRelativeToTopLeftPivot2.x;
if (x2 < num3)
{
num3 = x2;
}
sizeDelta.x = Mathf.Abs(num4 - num3);
if (includeLayoutGroupPadding)
{
sizeDelta.x += (float)(((Object)VLG != (Object)null) ? (VLG.padding.left + VLG.padding.right) : 0);
sizeDelta.x += (float)(((Object)HLG != (Object)null) ? (HLG.padding.left + HLG.padding.right) : 0);
sizeDelta.x += (float)(((Object)GLG != (Object)null) ? (GLG.padding.left + GLG.padding.right) : 0);
}
}
else
{
float x3 = sizeDelta.x;
Vector2 sizeDelta3 = rectTransform.sizeDelta;
sizeDelta.x = x3 + sizeDelta3.x;
if ((bool)HLG)
{
sizeDelta.x += HLG.spacing;
}
}
}
if (fitHeight)
{
if (findTotalBounds)
{
Vector2 positionRelativeToTopLeftPivot3 = GetPositionRelativeToTopLeftPivot(rectTransform);
if (positionRelativeToTopLeftPivot3.y > num)
{
Vector2 positionRelativeToTopLeftPivot4 = GetPositionRelativeToTopLeftPivot(rectTransform);
num = positionRelativeToTopLeftPivot4.y;
}
Vector2 positionRelativeToTopLeftPivot5 = GetPositionRelativeToTopLeftPivot(rectTransform);
float y = positionRelativeToTopLeftPivot5.y;
Vector2 sizeDelta4 = rectTransform.sizeDelta;
if (y - sizeDelta4.y < num2)
{
Vector2 positionRelativeToTopLeftPivot6 = GetPositionRelativeToTopLeftPivot(rectTransform);
float y2 = positionRelativeToTopLeftPivot6.y;
Vector2 sizeDelta5 = rectTransform.sizeDelta;
num2 = y2 - sizeDelta5.y;
}
sizeDelta.y = Mathf.Abs(num - num2);
if (includeLayoutGroupPadding)
{
sizeDelta.y += (float)(((Object)VLG != (Object)null) ? (VLG.padding.bottom + VLG.padding.top) : 0);
sizeDelta.y += (float)(((Object)HLG != (Object)null) ? (HLG.padding.bottom + HLG.padding.top) : 0);
sizeDelta.y += (float)(((Object)GLG != (Object)null) ? (GLG.padding.bottom + GLG.padding.top) : 0);
}
}
else
{
float y3 = sizeDelta.y;
Vector2 sizeDelta6 = rectTransform.sizeDelta;
sizeDelta.y = y3 + sizeDelta6.y;
if ((bool)VLG)
{
sizeDelta.y += VLG.spacing;
}
}
}
}
}
Vector2 vector = new Vector2(WidthPadding, HeightPadding);
if (!fitWidth)
{
WidthPadding = 0f;
}
if (!fitHeight)
{
HeightPadding = 0f;
}
if ((Object)overrideLayoutElement != (Object)null)
{
if (fitWidth && overrideLayoutElement.minWidth != (sizeDelta.x + vector.x) * WidthScale)
{
overrideLayoutElement.minWidth = (sizeDelta.x + vector.x) * WidthScale;
}
if (fitHeight && overrideLayoutElement.minHeight != (sizeDelta.y + vector.y) * HeightScale)
{
overrideLayoutElement.minHeight = (sizeDelta.y + vector.y) * HeightScale;
}
}
Vector2 vector2 = new Vector2(WidthScale * (sizeDelta.x + vector.x), HeightScale * (sizeDelta.y + vector.y));
if (rect_transform.sizeDelta != vector2)
{
rect_transform.sizeDelta = vector2;
if ((Object)base.transform.parent != (Object)null)
{
KChildFitter component2 = base.transform.parent.GetComponent <KChildFitter>();
if ((Object)component2 != (Object)null)
{
component2.FitSize();
}
}
}
}
}
/// <summary>
/// Applied after Awake runs.
/// </summary>
internal static void Postfix(KChildFitter __instance)
{
__instance.gameObject.AddOrGet <KChildFitterUpdater>();
}