/// <summary>
/// Creates a graphics context (as a <seealso cref="Graphics2D"/> object) for the splash
/// screen overlay image, which allows you to draw over the splash screen.
/// Note that you do not draw on the main image but on the image that is
/// displayed over the main image using alpha blending. Also note that drawing
/// on the overlay image does not necessarily update the contents of splash
/// screen window. You should call {@code update()} on the
/// <code>SplashScreen</code> when you want the splash screen to be
/// updated immediately.
/// <para>
/// The pixel (0, 0) in the coordinate space of the graphics context
/// corresponds to the origin of the splash screen native window bounds (see
/// <seealso cref="#getBounds()"/>).
///
/// </para>
/// </summary>
/// <returns> graphics context for the splash screen overlay surface </returns>
/// <exception cref="IllegalStateException"> if the splash screen has already been closed </exception>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public Graphics2D createGraphics() throws IllegalStateException
public Graphics2D CreateGraphics()
{
lock (typeof(SplashScreen))
{
CheckVisible();
if (Image == null)
{
// get unscaled splash image size
Dimension dim = _getBounds(SplashPtr).Size;
Image = new BufferedImage(dim.Width_Renamed, dim.Height_Renamed, BufferedImage.TYPE_INT_ARGB);
}
float scale = _getScaleFactor(SplashPtr);
Graphics2D g = Image.CreateGraphics();
assert(scale > 0);
if (scale <= 0)
{
scale = 1;
}
g.Scale(scale, scale);
return(g);
}
}
