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Old June 28th, 2004, 05:58 PM
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Default how to print multiple text page

Hi JGurus,
I am impleting a Printable class to print out a text file. I loaded the text into a vector. Each element I store in vector is a single line. I try to use a while loop to fill the page. If the increment of the vertical lineIndex exceeds the page height, I then return PAGE_EXIST. If all elements in the vector has been printed out, I still return the PAGE_EXISTS but set the flag for the next call to terminate. I don't understant why I keep print out a blank page. Could someone help. The fragment of code is follow:

    public int print(Graphics g, PageFormat pf, int pageIndex) throws PrinterException
        int wPage = (int)pf.getImageableWidth();
        int hPage = (int)pf.getImageableHeight();

        if (lines == null)
            lines = textLoader.getPrintText(g, wPage);
            MAX_PAGES = lines.size();

        g.translate((int)pf.getImageableX(), (int)pf.getImageableY());

        if (rememberedEOF) return Printable.NO_SUCH_PAGE;

        int y = 0;//(int) pf.getImageableY() + 12;

        System.out.println("wPage " + wPage + " hPage " + hPage);

        while ((y + linee.getHeight()) < hPage)
            System.out.println("Line " + lineIndex);
            Line linee = (Line)lines.elementAt(lineIndex);
// String line = raf.readLine();
            y += linee.getHeight();

            System.out.print("y " + y + " Page Length " + hPage);
            printLine(linee, g, y);

            if (lineIndex >= lines.size()) {
                System.out.println("Finished Painting " + lineIndex);
            rememberedEOF = true;


        System.out.println("Number calls " + (++count) + " index " + pageIndex + " height " + hPage);
        return Printable.PAGE_EXISTS;

// return Printable.NO_SUCH_PAGE;


    private void printLine(Line line, Graphics g, int linePosition)
            Segment segment = line.nextSegment();
            System.out.print("\t" + segment.getText());
            g.drawString(segment.getText(), segment.getStart(), linePosition);

            if (segment.isUnderline())
                g.drawLine(segment.getStart(), linePosition + 2, segment.getEnd(), linePosition + 2);
        } // end of line
        System.out.println("\n\tend print " + linePosition);

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