Printing more than 1 page using PrinterJob.print(): long time, huge files.

Name: tb29552 Date: 10/30/98


/*
When I print more than a page of text, the
"Progress" column in the print queue box will
show "0 bytes of 900Kb", 2 pages will be
"0 bytes of 1.74Mb", 3 pages will be "4.34Mb"
and so forth. It takes forever just to print
5 pages of text.

This does not occur for JDK1.1.6 (using PrintJob).
Printing 3 pages of text is almost instantaneous.
Progress column will show "0 bytes of 22.5Kb" for
3 pages compared with JDK1.2's 4.34MB.

Sample code:
------------
*/

/* source for Printable implementation */

import java.awt.*;
import java.awt.print.*;

public class Painter implements Printable {

    Font textFont = new Font("Monospaced", Font.PLAIN, 10);

    public int print(Graphics g, PageFormat pageFormat,
                      int pageIndex)
        throws PrinterException
    {

        g.setColor(Color.black);
        g.setFont(textFont);
        FontMetrics fm = g.getFontMetrics();

        int x = 72;
        int y = 72 + fm.getAscent();

        for (int i = 0; i < 40; i++) {
            g.drawString("sample line of text", x, y);
            y += fm.getHeight();
        }
        return Printable.PAGE_EXISTS;
    }
}
---------------------------------------------
/* source for test stub */

import java.awt.*;
import java.awt.print.*;

public class test {

    public test () {
        PrinterJob pJ = PrinterJob.getPrinterJob();

        Paper A4_paper = new Paper();
        A4_paper.setSize(595, 845);
        A4_paper.setImageableArea(60, 60, 451, 698);

        PageFormat pF = new PageFormat();
        pF.setOrientation(PageFormat.PORTRAIT);
        pF.setPaper(A4_paper);

        Painter painter = new Painter ();
        Book book = new Book();

        for (int i = 0; i < 5; i++) {
            book.append(painter, pF);
        }

        pJ.setPageable(book);
        try {
            pJ.print();
        } catch(PrinterException pE) {
        }
    }

    public static void main(String args[]) {
        test newPrintJob = new test ();
    }
}
/*
Note: Printing was done on HP LaserJet 4V.
*/

(Review ID: 41670)
======================================================================