private void SetSelectedRectangle(Point beginPoint, Point endPoint)
{
// Make sure x/y are top-left, and width/height is bottom-right
Point a = Utils.Min(beginPoint, endPoint);
Point b = Utils.Max(beginPoint, endPoint);
var newRect = Rectangle.FromLTRB(a.X, a.Y, b.X, b.Y);
// Determine if there is a need to update shapes
if (selectedRectangle == newRect)
{
return;
}
// Update selected rectangle
selectedRectangle = newRect;
// Update selected shapes
var shapes = Canvas.Instance.GetShapesByRectangle(selectedRectangle);
ClickData.Clear(true);
ClickData.Set(shapes);
// Update borders of selected shapes
// This may be needed
Canvas.Instance.Invalidate();
}
