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Print in Java 6
/**
* Class: Example6
* <p>
*
* Example on how to print an image.
* <p>
*
* @author Jean-Pierre Dube <jpdube@videotron.ca>
* @version 1.0
* @since 1.0
*/
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
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;
import java.net.MalformedURLException;
import java.net.URL;
public class JavaWorldPrintExample6 {
public static void main(String[] args) {
JavaWorldPrintExample6 example = new JavaWorldPrintExample6();
System.exit(0);
}
//--- Private instances declarations
private final static int POINTS_PER_INCH = 72;
/**
* Constructor: Example6
* <p>
*
*/
public JavaWorldPrintExample6() {
//--- 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, Example 6, Printing an image";
Font titleFont = new Font("helvetica", Font.BOLD, 18);
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. In this example, it
* will print an image of the Nasa Space Station with a border arround it.
* <p>
*
*
* @author Jean-Pierre Dube <jpdube@videotron.ca>
* @version 1.0
* @since 1.0
* @see Printable
*/
private class Document extends Component 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(4));
Rectangle2D.Double border = new Rectangle2D.Double(0, 0, pageFormat
.getImageableWidth(), pageFormat.getImageableHeight());
g2d.draw(border);
//--- Create a media tracker and a URL object
MediaTracker mt = new MediaTracker(this);
URL imageURL = null;
//--- Set the URL to the image that we want to load.
//--- NOTE: Change the path to reflect your location of the image
//--- NOTE: Only the following image type are supported JPEG, GIF
// and PNG.
try {
imageURL = new URL(
"file:///c:/softdev/java/articles/javaworld/printing/part_2/ss2.jpg");
} catch (MalformedURLException me) {
me.printStackTrace();
}
//--- Load the image and wait for it to load
Image image = Toolkit.getDefaultToolkit().getImage(imageURL);
mt.addImage(image, 0);
try {
mt.waitForID(0);
} catch (InterruptedException e) {
}
//--- Render the image on the sheet
g2d.drawImage(image, (int) (0.25 * POINTS_PER_INCH),
(int) (0.25 * POINTS_PER_INCH),
(int) (8.5 * POINTS_PER_INCH), (int) (6 * POINTS_PER_INCH),
this);
//--- Validate the page
return (PAGE_EXISTS);
}
}
} // Example6
