public UIDragHandler(UIElement mouseTarget, UIElement dragControl)
{
UpdateHook = new UpdateHookDelegate(Update);
MouseTarget = mouseTarget;
DragControl = dragControl;
MouseEvent = mouseTarget.ListenForMouse(mouseTarget.GetBounds(), new UIMouseEvent(DragMouseEvents));
}
public void CenterAround(UIElement element, int offsetX, int offsetY)
{
var bounds = element.GetBounds();
if (bounds == null) { return; }
var topLeft =
element.LocalPoint(new Microsoft.Xna.Framework.Vector2(bounds.X, bounds.Y));
this.X = offsetX + topLeft.X + ((bounds.Width - this.Width) / 2);
this.Y = offsetY + topLeft.Y + ((bounds.Height - this.Height) / 2);
}