/// <summary>Measures the child elements of a <see cref="T:System.Windows.Controls.Border" /> before they are arranged during the <see cref="M:System.Windows.Controls.Border.ArrangeOverride(System.Windows.Size)" /> pass.</summary>
/// <param name="constraint">An upper <see cref="T:System.Windows.Size" /> limit that cannot be exceeded.</param>
/// <returns>The <see cref="T:System.Windows.Size" /> that represents the upper size limit of the element.</returns>
// Token: 0x06004264 RID: 16996 RVA: 0x0012F824 File Offset: 0x0012DA24
protected override Size MeasureOverride(Size constraint)
{
UIElement child = this.Child;
Size result = default(Size);
Thickness borderThickness = this.BorderThickness;
if (base.UseLayoutRounding && !FrameworkAppContextSwitches.DoNotApplyLayoutRoundingToMarginsAndBorderThickness)
{
DpiScale dpi = base.GetDpi();
borderThickness = new Thickness(UIElement.RoundLayoutValue(borderThickness.Left, dpi.DpiScaleX), UIElement.RoundLayoutValue(borderThickness.Top, dpi.DpiScaleY), UIElement.RoundLayoutValue(borderThickness.Right, dpi.DpiScaleX), UIElement.RoundLayoutValue(borderThickness.Bottom, dpi.DpiScaleY));
}
Size size = Border.HelperCollapseThickness(borderThickness);
Size size2 = Border.HelperCollapseThickness(this.Padding);
if (child != null)
{
Size size3 = new Size(size.Width + size2.Width, size.Height + size2.Height);
Size availableSize = new Size(Math.Max(0.0, constraint.Width - size3.Width), Math.Max(0.0, constraint.Height - size3.Height));
child.Measure(availableSize);
Size desiredSize = child.DesiredSize;
result.Width = desiredSize.Width + size3.Width;
result.Height = desiredSize.Height + size3.Height;
}
else
{
result = new Size(size.Width + size2.Width, size.Height + size2.Height);
}
return(result);
}
