public virtual ValueSize MeasureElement <TRenderSize>(IVisualElement element,
TRenderSize availableSpace)
where TRenderSize : IRenderSize
{
if (!element.IsRequiresMeasure)
{
lock (_measureLock)
{
if (_lastMeasurements.TryGetValue(element, out var val))
{
LayoutQueue.RemoveVisualFromMeasureQueue(element);
return(val);
}
}
}
// measure anyways if we know nothing of it...?
//return ValueSize.Empty;
VisualLineage.PushVisual(element);
//_styleContext.PushVisual(element);
var layoutElement = GetElementForLayout(element);
////////////////////////
var res = MeasureElementImpl(layoutElement, availableSpace);
////////////////////////
LayoutQueue.RemoveVisualFromMeasureQueue(element);
element.AcceptChanges(ChangeType.Measure);
return(res);
}
