public override void Hide(AnnotationAdorner adorner)
{
if (!this.enabled)
{
return;
}
AnnotationAdorner.SetAnchor(adorner, AdornerLocation.None);
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(adorner.AdornedElement);
if (adornerLayer != null)
{
adornerLayer.Remove(adorner);
}
return;
}
public override void Show(AnnotationAdorner adorner)
{
if (!this.enabled)
{
return;
}
AnnotationAdorner.SetAnchor(adorner, AdornerLocation.None);
adorner.ScrollViewer = this.scrollViewer;
AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(adorner.AdornedElement);
if (adornerLayer != null)
{
adornerLayer.Add(adorner);
}
return;
}
protected override Size ArrangeOverride(Size finalSize)
{
Point anchorPoint = this.AdornedElement.TranslatePoint(new Point(this.AdornedElement.RenderSize.Width, 0), this.ScrollViewer);
AdornerLocation anchor = AnnotationAdorner.GetAnchor(this);
if (anchor == AdornerLocation.None)
{
// Calculate based on the real size of the adorner, depending on current zoom level
DesignerView designerView = ((WorkflowViewElement)AdornedElement).Context.Services.GetService <DesignerView>();
double zoomLevel = designerView.ZoomFactor;
Size adornerSize = new Size(this.content.DesiredSize.Width * zoomLevel, this.content.DesiredSize.Height * zoomLevel);
anchor = FindAnchor(anchorPoint, adornerSize, new Rect(0, 0, this.ScrollViewer.ViewportWidth, this.ScrollViewer.ViewportHeight));
AnnotationAdorner.SetAnchor(this, anchor);
}
Point location = CalculateLocation(anchor, this.AdornedElement.RenderSize, this.content.DesiredSize);
this.content.Arrange(new Rect(location, finalSize));
return(finalSize);
}