/// <summary>
/// Left nouse button is pressed
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
// Create new polygon, add it to the list
// and keep reference to it
newPolygon = new DrawPolygon(e.X, e.Y, e.X + 1, e.Y + 1);
AddNewObject(drawArea, newPolygon);
lastX = e.X;
lastY = e.Y;
}
public override void OnMouseUp(DrawArea drawArea, MouseEventArgs e)
{
newPolygon = null;
base.OnMouseUp(drawArea, e);
}