J2ME移动2D图形快速入门[3]

    public void paint( Graphics g )
    {
        // clear the display
        g.setColor( 255, 255, 255 );
        g.fillRect( 0, 0, getWidth(), getHeight() );
       
        // bind our scalable graphics to the given graphics
        scalableGraphics.bindTarget( g );

        // render at fixed position and size
        scalableImage.setViewportWidth( 50 );
        scalableImage.setViewportHeight( 75 );
        scalableGraphics.render( 5, 50, scalableImage );

        // again at different position and size
        scalableImage.setViewportWidth( 100 );
        scalableImage.setViewportHeight( 150 );
        scalableGraphics.render( 80, 5, scalableImage );

        // again at size that varies with the canvas size
        scalableImage.setViewportWidth( getWidth()-20 );
        scalableImage.setViewportHeight( getHeight()-20 );
        scalableGraphics.render( 0, 0, scalableImage );