protected override Size ArrangeOverride(NonVirtualizingLayoutContext context, Size finalSize)
{
double offset = 0.0;
foreach (var element in context.Children)
{
element.Arrange(new Rect(0, offset, element.DesiredSize.Width, element.DesiredSize.Height));
offset += element.DesiredSize.Height;
}
return(finalSize);
}
protected override Size MeasureOverride(NonVirtualizingLayoutContext context, Size availableSize)
{
double extentHeight = 0.0;
double extentWidth = 0.0;
foreach (var element in context.Children)
{
element.Measure(availableSize);
extentHeight += element.DesiredSize.Height;
extentWidth = Math.Max(extentWidth, element.DesiredSize.Width);
}
return(new Size(extentWidth, extentHeight));
}
Size INonVirtualizingLayoutOverrides.ArrangeOverride(NonVirtualizingLayoutContext context, Size finalSize)
{
return(ArrangeOverride(context, finalSize));
}
Size INonVirtualizingLayoutOverrides.MeasureOverride(NonVirtualizingLayoutContext context, Size availableSize)
{
return(MeasureOverride(context, availableSize));
}
void INonVirtualizingLayoutOverrides.UninitializeForContextCore(NonVirtualizingLayoutContext context)
{
UninitializeForContextCore(context);
}
protected virtual Size ArrangeOverride(NonVirtualizingLayoutContext context, Size finalSize)
{
throw new NotImplementedException();
}
protected virtual Size MeasureOverride(NonVirtualizingLayoutContext context, Size availableSize)
{
throw new NotImplementedException();
}
protected virtual void UninitializeForContextCore(NonVirtualizingLayoutContext context)
{
}
public LayoutContextAdapter(NonVirtualizingLayoutContext nonVirtualizingContext)
{
m_nonVirtualizingContext = new WeakReference <NonVirtualizingLayoutContext>(nonVirtualizingContext);
}
protected internal abstract Size ArrangeOverride(NonVirtualizingLayoutContext context, Size finalSize);
protected internal abstract Size MeasureOverride(NonVirtualizingLayoutContext context, Size availableSize);
protected internal virtual void InitializeForContextCore(NonVirtualizingLayoutContext context)
{
}
