/// <summary>
/// When overridden in a derived class, measures the size in layout required for child elements and determines a size for the <see cref="T:System.Windows.FrameworkElement" />-derived class.
/// </summary>
/// <param name="availableSize">The available size that this element can give to child elements. Infinity can be specified as a value to indicate that the element will size to whatever content is available.</param>
/// <returns>The size that this element determines it needs during layout, based on its calculations of child element sizes.</returns>
protected override Size MeasureOverride(Size availableSize)
{
if (HeaderRenderer == null)
{
HeaderRenderer = new StandardPrimarySecondaryHorizontalPanelHeaderRenderer();
}
foreach (UIElement element in Children)
{
if (SimpleView.GetUIElementType(element) == UIElementTypes.Primary)
{
if (CanCollapseSecondary && IsSecondaryElementCollapsed)
{
var minimumCollapsedWidth = 0d;
var mainAreaLeft = 0d;
if (HeaderRenderer != null)
{
minimumCollapsedWidth = HeaderRenderer.GetMinimumCollapsedAreaWidth(this);
if (SecondaryAreaLocation == SecondaryAreaLocation.Left)
{
mainAreaLeft = minimumCollapsedWidth + (minimumCollapsedWidth > 0d ? ElementSpacing : 0d);
}
}
var primaryArea = new Rect(mainAreaLeft, 0d, availableSize.Width - minimumCollapsedWidth - (minimumCollapsedWidth > 0d ? ElementSpacing : 0d), availableSize.Height);
if (HeaderRenderer != null)
{
primaryArea = HeaderRenderer.GetPrimaryClientArea(primaryArea, this);
}
element.Measure(primaryArea.Size);
}
else
{
var currentX = 0d;
if (SecondaryAreaLocation == SecondaryAreaLocation.Left)
{
currentX = SecondaryElementWidth + ElementSpacing;
}
var primaryArea = new Rect(currentX, 0d, Math.Max(availableSize.Width - SecondaryElementWidth - ElementSpacing, 0), availableSize.Height);
if (HeaderRenderer != null)
{
primaryArea = HeaderRenderer.GetPrimaryClientArea(primaryArea, this);
}
element.Measure(primaryArea.Size);
}
}
else
{
if (CanCollapseSecondary && IsSecondaryElementCollapsed)
{
element.Measure(new Size(0, availableSize.Height));
}
else
{
var secondaryArea = SecondaryAreaLocation == SecondaryAreaLocation.Left ? new Rect(0d, 0d, SecondaryElementWidth, availableSize.Height) : new Rect(availableSize.Width - SecondaryElementWidth, 0d, SecondaryElementWidth, availableSize.Height);
if (HeaderRenderer != null)
{
secondaryArea = HeaderRenderer.GetSecondaryClientArea(secondaryArea, this);
}
element.Measure(secondaryArea.Size);
}
}
}
return(base.MeasureOverride(availableSize));
}
/// <summary>
/// When overridden in a derived class, measures the size in layout required for child elements and determines a size for the <see cref="T:System.Windows.FrameworkElement" />-derived class.
/// </summary>
/// <param name="availableSize">The available size that this element can give to child elements. Infinity can be specified as a value to indicate that the element will size to whatever content is available.</param>
/// <returns>The size that this element determines it needs during layout, based on its calculations of child element sizes.</returns>
protected override Size MeasureOverride(Size availableSize)
{
if (HeaderRenderer == null)
HeaderRenderer = new StandardPrimarySecondaryHorizontalPanelHeaderRenderer();
foreach (UIElement element in Children)
if (SimpleView.GetUIElementType(element) == UIElementTypes.Primary)
{
if (CanCollapseSecondary && IsSecondaryElementCollapsed)
{
var minimumCollapsedWidth = 0d;
var mainAreaLeft = 0d;
if (HeaderRenderer != null)
{
minimumCollapsedWidth = HeaderRenderer.GetMinimumCollapsedAreaWidth(this);
if (SecondaryAreaLocation == SecondaryAreaLocation.Left) mainAreaLeft = minimumCollapsedWidth + (minimumCollapsedWidth > 0d ? ElementSpacing : 0d);
}
var primaryArea = new Rect(mainAreaLeft, 0d, availableSize.Width - minimumCollapsedWidth - (minimumCollapsedWidth > 0d ? ElementSpacing : 0d), availableSize.Height);
if (HeaderRenderer != null) primaryArea = HeaderRenderer.GetPrimaryClientArea(primaryArea, this);
element.Measure(primaryArea.Size);
}
else
{
var currentX = 0d;
if (SecondaryAreaLocation == SecondaryAreaLocation.Left) currentX = SecondaryElementWidth + ElementSpacing;
var primaryArea = new Rect(currentX, 0d, Math.Max(availableSize.Width - SecondaryElementWidth - ElementSpacing, 0), availableSize.Height);
if (HeaderRenderer != null) primaryArea = HeaderRenderer.GetPrimaryClientArea(primaryArea, this);
element.Measure(primaryArea.Size);
}
}
else
{
if (CanCollapseSecondary && IsSecondaryElementCollapsed)
element.Measure(new Size(0, availableSize.Height));
else
{
var secondaryArea = SecondaryAreaLocation == SecondaryAreaLocation.Left ? new Rect(0d, 0d, SecondaryElementWidth, availableSize.Height) : new Rect(availableSize.Width - SecondaryElementWidth, 0d, SecondaryElementWidth, availableSize.Height);
if (HeaderRenderer != null) secondaryArea = HeaderRenderer.GetSecondaryClientArea(secondaryArea, this);
element.Measure(secondaryArea.Size);
}
}
return base.MeasureOverride(availableSize);
}
