Joseph Lee
Posts: 10
Nickname: at9483mph
Registered: Jan, 2004
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Re: Print a image(bitmap or JPEG)
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Posted: Feb 20, 2004 11:19 PM
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Dear,
This is the java coding i used to print a component, but I cannot use it to print a image.
Actually I want to print a component(JPanel), but the printing is out of margin and I do not know how to justify it, thus I try to convert my contains in that particular component to a image(the image can capture/get all the contains boundaries without problem) and try to print it out. But I do not have any idea to do that?!
Can anyone please give me some guide on how to justify the printing margin or to print a image? THANKS!!!
import java.awt.*;
import javax.swing.*;
import java.awt.print.*;
public class SendToPrinter implements Printable
{
//Component to print
private Component printComp;
//To print the component
public static void printComponent(Component c)
{
new SendToPrinter(c).print();
}
//To set the component to print
public SendToPrinter(Component printComp)
{
this.printComp = printComp;
}
//To print
public void print()
{
PrinterJob printJob = PrinterJob.getPrinterJob();
printJob.setPrintable(this);
if (printJob.printDialog())
try
{
printJob.print();
}
catch(PrinterException e)
{
System.out.println("Error printing: " + e);
}
}
//To print ( over write the Interface Printable method )
public int print(Graphics g, PageFormat pageFormat, int pageIndex)
{
if (pageIndex > 0)
{
return(NO_SUCH_PAGE);
}
else
{
Graphics2D g2d = (Graphics2D)g;
g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
disableDoubleBuffering(printComp);
printComp.paint(g2d);
enableDoubleBuffering(printComp);
return(PAGE_EXISTS);
}
}
//To disable the double buffering at the same time
public static void disableDoubleBuffering(Component c)
{
RepaintManager currentManager = RepaintManager.currentManager(c);
currentManager.setDoubleBufferingEnabled(false);
}
//To enable the double buffering at the same time
public static void enableDoubleBuffering(Component c)
{
RepaintManager currentManager = RepaintManager.currentManager(c);
currentManager.setDoubleBufferingEnabled(true);
}
}
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