// Handler for resizing from the bottom-right.
void HandleBottom(object sender, DragDeltaEventArgs args)
{
FrameworkElement adornedElement = this.AdornedElement as FrameworkElement;
Thumb hitThumb = sender as Thumb;
if (adornedElement == null || hitThumb == null)
{
return;
}
FrameworkElement parentElement = adornedElement.Parent as FrameworkElement;
// Ensure that the Width and Height are properly initialized after the resize.
EnforceSize(adornedElement);
var heightChangePixels = args.VerticalChange;
var tileChange = (int)(heightChangePixels / Screen.Tileset.TileSize);
var newHeight = Screen.Height + tileChange;
if (newHeight != Screen.Height && newHeight > 0)
{
Screen.Resize(Screen.Width, newHeight);
InvalidateMeasure();
InvalidateVisual();
}
}
