//click select
public void HandleSelectButtonClick(object sender, RoutedEventArgs e)
{
_model.ClickSelect();
_select.IsEnabled = false;
_ellipse.IsEnabled = true;
_line.IsEnabled = true;
_rectangle.IsEnabled = true;
}
//click select
public void HandleSelectButtonClick(object sender, System.EventArgs e)
{
_model.ClickSelect();
_buttonSelect.Enabled = false;
_buttonEllipse.Enabled = true;
_buttonLine.Enabled = true;
_buttonRectangle.Enabled = true;
_buttonArrow.Enabled = true;
}