public void InsertAbove(DockableCollection visual, DockableCollection reference)
{
LayoutContext visualContext = GetLayoutContext(visual);
LayoutContext referenceContext = GetLayoutContext(reference);
referenceContext.InsertAbove(visualContext);
AdjustPostVerticalInsertion(visualContext, referenceContext);
}
internal void InsertByLocation(DockableCollection visual, Rect bounds, System.Windows.Controls.Dock defaultPosition)
{
using (new Activity(this))
{
LayoutContext layoutContext = GetLayoutContext(visual);
LayoutContext reference = (LayoutContexts[0] == layoutContext ? LayoutContexts[1] : LayoutContexts[0]);
// If the dock resized (smaller) and the bounds are outside the dock, position the visual at the right or bottom edge
if (bounds.Left >= ActualWidth)
{
layoutContext.InsertRight(reference);
}
else if (bounds.Top >= ActualHeight)
{
layoutContext.InsertBottom(reference);
}
else
{
// Find the visual where the new visual's midpoint was
double centerX = (bounds.Left + bounds.Right) / 2;
double centerY = (bounds.Top + bounds.Bottom) / 2;
LayoutContext midpointReference = FindMidPoint(centerX, centerY);
if (midpointReference == null)
{
// The midpoint is outside the dock
InsertByDockPosition(layoutContext, defaultPosition);
}
else
{
// Position the visual relative to this reference
double referenceX = (midpointReference.Left.Value + midpointReference.Right.Value) / 2;
double referenceY = (midpointReference.Top.Value + midpointReference.Bottom.Value) / 2;
if (Math.Abs(centerX - referenceX) < MinimumChildSize.Width / 2)
{
if (centerY < referenceY)
{
midpointReference.InsertAbove(layoutContext);
}
else
{
midpointReference.InsertBelow(layoutContext);
}
}
else if (Math.Abs(centerY - referenceY) < MinimumChildSize.Height / 2)
{
if (centerX < referenceX)
{
midpointReference.InsertToLeftOf(layoutContext);
}
else
{
midpointReference.InsertToRightOf(layoutContext);
}
}
else
{
midpointReference.InsertBelow(layoutContext);
}
}
}
}
}
