Name: mc57594 Date: 03/13/97


run the following java application with an
available image; it will not print this image


import java.awt.*;
import java.awt.event.*;

public class PrintingTest extends Frame implements ActionListener {

    PrintFrame printFrame;

    public PrintingTest( ) {

        super( "Printing Test" );
        
        Button b = new Button( "Print" );
        b.setActionCommand( "print" );
        b.addActionListener( this );
        add( "South", b );
        pack( );

// create the new PrintFrame
printFrame = new PrintFrame( );

// add WindowListener to perform
// an action on closing this window
addWindowListener( new MyWindowAdapter( ) );
    }

    public void actionPerformed( ActionEvent e ) {

        String cmd = e.getActionCommand();

        if ( cmd.equals( "print" ) ) {

handlePrinting();

        }
    }

public void handlePrinting() {
Dimension dim = new Dimension( 794 - 50, 1123 - 40 );

//printFrame.show( );
printFrame.printCanvas.setSize( dim );
printFrame.printCanvas.repaint( );

// get a new print job and display
// the print dialog
        PrintJob pjob = getToolkit( ).getPrintJob( printFrame,
"Printing Test", null );

        if (pjob != null) {

            Graphics pg = pjob.getGraphics();

            if (pg != null) {

                printFrame.printCanvas.printAll( pg );

// send the page to printer
pg.dispose();
}
pjob.end();
        }
}


    public static void main(String args[]) {
        PrintingTest test = new PrintingTest();
        test.show();
    }
}

class PrintFrame extends Frame {

PrintCanvas printCanvas;

public PrintFrame()
{
// create a print frame with
// a canvas in it; all printing
// will take place in this canvas

super("PrintFrame (invisible)");
printCanvas = new PrintCanvas();
add( "Center", printCanvas );
pack();
}

}


class PrintCanvas extends Canvas {

public Dimension getPreferredSize() {
        // some magic numbers to print to A4 :-)
        return new Dimension(794 - 50, 1123 - 40);
    }

// everything that should be printed
// has to be put in this paint method
  
    public void paint(Graphics g) {

        Rectangle r = getBounds();

String s = "Java printing at work...";
String lo = "links oben";
String di = "width = " + r.width + " height = " + r.height;
String ro = "rechts oben";
String lu = "links unten";
String ru = "rechts unten";

// set default color
g.setColor( Color.black );
 
// rectangle around the printable area
g.drawRect( 0, 0, r.width, r.height);

// draw some strings do demonstrate the ability
// to position exactly to pixels
g.drawString(s,
( r.width - g.getFontMetrics().stringWidth( s ) ) / 2,
( r.height + g.getFontMetrics().getHeight( ) ) / 2 );

g.drawString( lo, 1, g.getFontMetrics().getHeight( ) );

g.drawString( di,
( r.width - g.getFontMetrics().stringWidth( di ) ) / 2,
g.getFontMetrics().getHeight( ) );

g.drawString( ro,
r.width - g.getFontMetrics().stringWidth( ro ) - 1,
g.getFontMetrics().getHeight( ) );

g.drawString( lu, 1, r.height );

g.drawString( ru,
r.width - g.getFontMetrics().stringWidth( ru ) - 1,
r.height );

// set a new font

g.setFont( new Font( "SansSerif", Font.PLAIN, 24 ) );

g.drawString(s,
( r.width - g.getFontMetrics().stringWidth( s ) ) / 2,
( r.height + g.getFontMetrics().getHeight( ) ) / 2 + 40 );

// set a new font

g.setFont( new Font( "SansSerif", Font.BOLD + Font.ITALIC, 24 ) );

g.drawString( s,
( r.width - g.getFontMetrics().stringWidth( s ) ) / 2,
( r.height + g.getFontMetrics().getHeight( ) ) / 2 + 80 );

// draw an image: doesn't work with this version of JDK 1.1 !!

Image img = getToolkit().getImage( "logo.gif" );

g.drawImage( img, 1, 30, this );

    }

}

class MyWindowAdapter extends WindowAdapter {

public void windowClosing( WindowEvent evt ) {
// exit this application
System.exit( 0 );
}
}

company - INNOSOFT GmbH , email - ###@###.###
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