/**
* Starts the print operation. This is quite expensive, and is kicked off in a separate thread.
*/
public void print() {
final PrinterJob job = PrinterJob.getPrinterJob();
job.setPrintable(this);
// make a local copy of the object to be printed, for use by the print thread
// below...
final Component printMe = getPrintComponent();
Thread worker =
new Thread() {
public void run() {
if (job.printDialog()) {
try {
// need to make sure that no other thread tries to
// run a print job and set printCompnent at the same
// time...
synchronized (this) {
printComponent = printMe;
job.print();
printComponent = null;
}
} catch (Exception ex) {
log.warning("error printing: " + ex);
}
}
}
};
worker.start();
}
/** print the canvas scaled with factor <code>scale</code> */
public void print(double scale) {
printScale = scale;
PrinterJob printJob = PrinterJob.getPrinterJob();
printJob.setPrintable(this);
if (printJob.printDialog()) {
try {
printJob.print();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}