Media: Graphics, Audio,Video - Java - page 481

public public void void paint ( Graphics g ) {

g . drawImage ( image , 20 , 20 , this

this );

}

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

JFrame f = new

static void

new JFrame ( "GetImage" );
f . setDefaultCloseOperation ( JFrame . EXIT_ON_CLOSE );
GetImage myApplet = new new GetImage ();

f . setContentPane ( myApplet );
myApplet . init ();
f . setSize ( 100 , 100 );
f . setVisible ( true

true );
myApplet . start ();

}

}

You may sometimes want to display an image more than once in the same panel.
Example 12-5 is a program that paints its background with the same image over and over.
We use the image's getWidth() and getHeight() methods to find the image's size and the
more regular getSize() method on the component itself. As usual, we don't hardcode the
window size in the paint() method because the user has the option of resizing with the
mouse.

Example 12-5. TiledImageComponent.java
public public class class TiledImageComponent TiledImageComponent extends extends JComponent {

private private static static final final long long serialVersionUID = - 8771306833824134974L ;

protected protected TextField nameTF , passTF , domainTF ;

protected protected Image im ;

public

public static final String DEFAULT_IMAGE_NAME =

"graphics/background.gif" ;

static final

/** Set things up nicely. */
public public TiledImageComponent () {

setLayout ( new new FlowLayout ());

add ( new new Label ( "Name:" , Label . CENTER ));

add ( nameTF = new new TextField ( 10 ));

add ( new new Label ( "Password:" , Label . CENTER ));

add ( passTF = new

new TextField ( 10 ));
passTF . setEchoChar ( '*' );