JavaWorldPrintExample2.java Source code

Introduction

Here is the source code for JavaWorldPrintExample2.java

Source

/**
 * Class: Example2
 * <p>
 * 
 * Print in Java series for the JavaWorld magazine.
 * 
 * @author Jean-Pierre Dube <jpdube@videotron.ca>
 * @version 1.0
 * @since 1.0
 */

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.awt.print.Book;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterJob;

public class JavaWorldPrintExample2 {
    public static void main(String[] args) {

        JavaWorldPrintExample2 example2 = new JavaWorldPrintExample2();
        System.exit(0);
    }

    //--- Private instances declarations
    private final static int POINTS_PER_INCH = 72;

    /**
     * Constructor: Example2
     * <p>
     *  
     */
    public JavaWorldPrintExample2() {

        //--- Create a new PrinterJob object
        PrinterJob printJob = PrinterJob.getPrinterJob();

        //--- Create a new book to add pages to
        Book book = new Book();

        //--- Add the cover page using the default page format for this print
        // job
        book.append(new IntroPage(), printJob.defaultPage());

        //--- Add the document page using a landscape page format
        PageFormat documentPageFormat = new PageFormat();
        documentPageFormat.setOrientation(PageFormat.LANDSCAPE);
        book.append(new Document(), documentPageFormat);

        //--- Tell the printJob to use the book as the pageable object
        printJob.setPageable(book);

        //--- Show the print dialog box. If the user click the
        //--- print button we then proceed to print else we cancel
        //--- the process.
        if (printJob.printDialog()) {
            try {
                printJob.print();
            } catch (Exception PrintException) {
                PrintException.printStackTrace();
            }
        }
    }

    /**
     * Class: IntroPage
     * <p>
     * 
     * This class defines the painter for the cover page by implementing the
     * Printable interface.
     * <p>
     * 
     * @author Jean-Pierre Dube <jpdube@videotron.ca>
     * @version 1.0
     * @since 1.0
     * @see Printable
     */
    private class IntroPage implements Printable {

        /**
         * Method: print
         * <p>
         * 
         * @param g
         *            a value of type Graphics
         * @param pageFormat
         *            a value of type PageFormat
         * @param page
         *            a value of type int
         * @return a value of type int
         */
        public int print(Graphics g, PageFormat pageFormat, int page) {

            //--- Create the Graphics2D object
            Graphics2D g2d = (Graphics2D) g;

            //--- Translate the origin to 0,0 for the top left corner
            g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());

            //--- Set the default drawing color to black
            g2d.setPaint(Color.black);

            //--- Draw a border arround the page
            Rectangle2D.Double border = new Rectangle2D.Double(0, 0, pageFormat.getImageableWidth(),
                    pageFormat.getImageableHeight());
            g2d.draw(border);

            //--- Print the title
            String titleText = "Printing in Java Part 2";
            Font titleFont = new Font("helvetica", Font.BOLD, 36);
            g2d.setFont(titleFont);

            //--- Compute the horizontal center of the page
            FontMetrics fontMetrics = g2d.getFontMetrics();
            double titleX = (pageFormat.getImageableWidth() / 2) - (fontMetrics.stringWidth(titleText) / 2);
            double titleY = 3 * POINTS_PER_INCH;
            g2d.drawString(titleText, (int) titleX, (int) titleY);

            return (PAGE_EXISTS);
        }
    }

    /**
     * Class: Document
     * <p>
     * 
     * This class is the painter for the document content.
     * <p>
     * 
     * 
     * @author Jean-Pierre Dube <jpdube@videotron.ca>
     * @version 1.0
     * @since 1.0
     * @see Printable
     */
    private class Document implements Printable {

        /**
         * Method: print
         * <p>
         * 
         * @param g
         *            a value of type Graphics
         * @param pageFormat
         *            a value of type PageFormat
         * @param page
         *            a value of type int
         * @return a value of type int
         */
        public int print(Graphics g, PageFormat pageFormat, int page) {

            //--- Create the Graphics2D object
            Graphics2D g2d = (Graphics2D) g;

            //--- Translate the origin to 0,0 for the top left corner
            g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());

            //--- Set the drawing color to black
            g2d.setPaint(Color.black);

            //--- Draw a border arround the page using a 12 point border
            g2d.setStroke(new BasicStroke(12));
            Rectangle2D.Double border = new Rectangle2D.Double(0, 0, pageFormat.getImageableWidth(),
                    pageFormat.getImageableHeight());

            g2d.draw(border);

            //--- Print the text one inch from the top and laft margins
            g2d.drawString("This the content page", POINTS_PER_INCH, POINTS_PER_INCH);

            //--- Validate the page
            return (PAGE_EXISTS);

        }
    }

} // Example2