Sizing screen to fit on paper

Question

I need to print a 800 / 600 screen on an A4 paper. How can I get it scaled to fit on an A4 paper? What is the pixel dimension equivalent of the printable are of an A4 paper?

Answer 1

I use the following code to print my graphic on a a4 paper.
public int print(Graphics g, PageFormat pageFormat, int pageIndex)
if (pageIndex > 0)
return(NO_SUCH_PAGE);
else
pageFormat.setOrientation(pageFormat.PORTRAIT);
// first compute the scale factor of the component
int w=componentToBePrinted.getWidth();
int h=componentToBePrinted.getHeight();
// change w and h because if we rotate ge GC
double sx=pageFormat.getImageableWidth()/(double)h;
double sy=pageFormat.getImageableHeight()/(double)w;
double sf;
if (sx<sy) sf=sx; else sf=sy;
Graphics2D g2d = (Graphics2D)g;
g2d.translate(
pageFormat.getImageableX(),
pageFormat.getImageableY()+pageFormat.getImageableHeight()
g2d.rotate(Math.toRadians(270));
g2d.scale(sf,sf);
disableDoubleBuffering(componentToBePrinted);
componentToBePrinted.paint(g2d);          
enableDoubleBuffering(componentToBePrinted);
return(PAGE_EXISTS);
public static void disableDoubleBuffering(Component c)
RepaintManager currentManager = RepaintManager.currentManager(c);
currentManager.setDoubleBufferingEnabled(false);
public static void enableDoubleBuffering(Component c)
RepaintManager currentManager = RepaintManager.currentManager(c);
currentManager.setDoubleBufferingEnabled(true);
}