/// <summary>Arranges the content of a <see cref="T:System.Windows.Controls.WrapPanel" /> element.</summary>
/// <param name="finalSize">The <see cref="T:System.Windows.Size" /> that this element should use to arrange its child elements.</param>
/// <returns>The <see cref="T:System.Windows.Size" /> that represents the arranged size of this <see cref="T:System.Windows.Controls.WrapPanel" /> element and its children.</returns>
// Token: 0x06005B53 RID: 23379 RVA: 0x0019BE90 File Offset: 0x0019A090
protected override Size ArrangeOverride(Size finalSize)
{
int num = 0;
double itemWidth = this.ItemWidth;
double itemHeight = this.ItemHeight;
double num2 = 0.0;
double itemU = (this.Orientation == Orientation.Horizontal) ? itemWidth : itemHeight;
WrapPanel.UVSize uvsize = new WrapPanel.UVSize(this.Orientation);
WrapPanel.UVSize uvsize2 = new WrapPanel.UVSize(this.Orientation, finalSize.Width, finalSize.Height);
bool flag = !DoubleUtil.IsNaN(itemWidth);
bool flag2 = !DoubleUtil.IsNaN(itemHeight);
bool useItemU = (this.Orientation == Orientation.Horizontal) ? flag : flag2;
UIElementCollection internalChildren = base.InternalChildren;
int i = 0;
int count = internalChildren.Count;
while (i < count)
{
UIElement uielement = internalChildren[i];
if (uielement != null)
{
WrapPanel.UVSize uvsize3 = new WrapPanel.UVSize(this.Orientation, flag ? itemWidth : uielement.DesiredSize.Width, flag2 ? itemHeight : uielement.DesiredSize.Height);
if (DoubleUtil.GreaterThan(uvsize.U + uvsize3.U, uvsize2.U))
{
this.arrangeLine(num2, uvsize.V, num, i, useItemU, itemU);
num2 += uvsize.V;
uvsize = uvsize3;
if (DoubleUtil.GreaterThan(uvsize3.U, uvsize2.U))
{
this.arrangeLine(num2, uvsize3.V, i, ++i, useItemU, itemU);
num2 += uvsize3.V;
uvsize = new WrapPanel.UVSize(this.Orientation);
}
num = i;
}
else
{
uvsize.U += uvsize3.U;
uvsize.V = Math.Max(uvsize3.V, uvsize.V);
}
}
i++;
}
if (num < internalChildren.Count)
{
this.arrangeLine(num2, uvsize.V, num, internalChildren.Count, useItemU, itemU);
}
return(finalSize);
}
/// <summary>Measures the child elements of a <see cref="T:System.Windows.Controls.WrapPanel" /> in anticipation of arranging them during the <see cref="M:System.Windows.Controls.WrapPanel.ArrangeOverride(System.Windows.Size)" /> pass.</summary>
/// <param name="constraint">An upper limit <see cref="T:System.Windows.Size" /> that should not be exceeded.</param>
/// <returns>The <see cref="T:System.Windows.Size" /> that represents the desired size of the element.</returns>
// Token: 0x06005B52 RID: 23378 RVA: 0x0019BC88 File Offset: 0x00199E88
protected override Size MeasureOverride(Size constraint)
{
WrapPanel.UVSize uvsize = new WrapPanel.UVSize(this.Orientation);
WrapPanel.UVSize uvsize2 = new WrapPanel.UVSize(this.Orientation);
WrapPanel.UVSize uvsize3 = new WrapPanel.UVSize(this.Orientation, constraint.Width, constraint.Height);
double itemWidth = this.ItemWidth;
double itemHeight = this.ItemHeight;
bool flag = !DoubleUtil.IsNaN(itemWidth);
bool flag2 = !DoubleUtil.IsNaN(itemHeight);
Size availableSize = new Size(flag ? itemWidth : constraint.Width, flag2 ? itemHeight : constraint.Height);
UIElementCollection internalChildren = base.InternalChildren;
int i = 0;
int count = internalChildren.Count;
while (i < count)
{
UIElement uielement = internalChildren[i];
if (uielement != null)
{
uielement.Measure(availableSize);
WrapPanel.UVSize uvsize4 = new WrapPanel.UVSize(this.Orientation, flag ? itemWidth : uielement.DesiredSize.Width, flag2 ? itemHeight : uielement.DesiredSize.Height);
if (DoubleUtil.GreaterThan(uvsize.U + uvsize4.U, uvsize3.U))
{
uvsize2.U = Math.Max(uvsize.U, uvsize2.U);
uvsize2.V += uvsize.V;
uvsize = uvsize4;
if (DoubleUtil.GreaterThan(uvsize4.U, uvsize3.U))
{
uvsize2.U = Math.Max(uvsize4.U, uvsize2.U);
uvsize2.V += uvsize4.V;
uvsize = new WrapPanel.UVSize(this.Orientation);
}
}
else
{
uvsize.U += uvsize4.U;
uvsize.V = Math.Max(uvsize4.V, uvsize.V);
}
}
i++;
}
uvsize2.U = Math.Max(uvsize.U, uvsize2.U);
uvsize2.V += uvsize.V;
return(new Size(uvsize2.Width, uvsize2.Height));
}
// Token: 0x06005B54 RID: 23380 RVA: 0x0019C068 File Offset: 0x0019A268
private void arrangeLine(double v, double lineV, int start, int end, bool useItemU, double itemU)
{
double num = 0.0;
bool flag = this.Orientation == Orientation.Horizontal;
UIElementCollection internalChildren = base.InternalChildren;
for (int i = start; i < end; i++)
{
UIElement uielement = internalChildren[i];
if (uielement != null)
{
WrapPanel.UVSize uvsize = new WrapPanel.UVSize(this.Orientation, uielement.DesiredSize.Width, uielement.DesiredSize.Height);
double num2 = useItemU ? itemU : uvsize.U;
uielement.Arrange(new Rect(flag ? num : v, flag ? v : num, flag ? num2 : lineV, flag ? lineV : num2));
num += num2;
}
}
}
