import java.awt.*;
import java.awt.print.*;
import javax.swing.*;
public class JComponentVista extends Vista implements Printable 
{

private static final boolean SYMMETRIC_SCALING = true;
private static final boolean ASYMMETRIC_SCALING = false;
private double mScaleX;
private double mScaleY;
/**
 * The Swing component to print.
 */
private JComponent mComponent;
/**
 * Create a Pageable that can print a
 * Swing JComponent over multiple pages.
 *
 * @param c The swing JComponent to be printed.
 *
 * @param format The size of the pages over which
 * the componenent will be printed.
 */
public JComponentVista(JComponent c, PageFormat format) 
{
setPageFormat(format);
setPrintable(this);
setComponent(c);
/* Tell the Vista we subclassed the size of the canvas.
 */
Rectangle componentBounds = c.getBounds(null);
setSize(componentBounds.width, componentBounds.height);
setScale(1, 1);
}

protected void setComponent(JComponent c) 
{
mComponent = c;
}
protected void setScale(double scaleX, double scaleY) 
{
mScaleX = scaleX;
mScaleY = scaleY;
}
public void scaleToFitX() 
{
PageFormat format = getPageFormat();
Rectangle componentBounds = mComponent.getBounds(null);
double scaleX = format.getImageableWidth() /componentBounds.width;
double scaleY = scaleX;
if (scaleX < 1) 
{
setSize( (float) format.getImageableWidth(),
(float) (componentBounds.height * scaleY));
setScale(scaleX, scaleY);
}
}

public void scaleToFitY() 
{
PageFormat format = getPageFormat();
Rectangle componentBounds = mComponent.getBounds(null);
double scaleY = format.getImageableHeight() /componentBounds.height;
double scaleX = scaleY;
if (scaleY < 1) 
{
setSize( (float) (componentBounds.width * scaleX),(float) format.getImageableHeight());
setScale(scaleX, scaleY);
}
}

public void scaleToFit(boolean useSymmetricScaling) 
{
PageFormat format = getPageFormat();
Rectangle componentBounds = mComponent.getBounds(null);
double scaleX = format.getImageableWidth() /componentBounds.width;
double scaleY = format.getImageableHeight() /componentBounds.height;
System.out.println("Scale: " + scaleX + " " + scaleY);
if (scaleX < 1 || scaleY < 1) 
{
   if (useSymmetricScaling) 
   {
   if (scaleX < scaleY) {scaleY = scaleX;} 
   else {scaleX = scaleY;}
}
setSize( (float) (componentBounds.width * scaleX), (float) (componentBounds.height * scaleY) );
setScale(scaleX, scaleY);
}

public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException 
{
Graphics2D g2 = (Graphics2D) graphics;
g2.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
Rectangle componentBounds = mComponent.getBounds(null);
g2.translate(-componentBounds.x, -componentBounds.y);
g2.scale(mScaleX, mScaleY);
boolean wasBuffered = mComponent.isDoubleBuffered();
mComponent.paint(g2);
mComponent.setDoubleBuffered(wasBuffered);
return PAGE_EXISTS;
}

)

