więc jak przerobić poniższy przykład z java 1.7 na java 1.6 ??
import java.awt.*;
import javax.swing.*;
import static java.awt.GraphicsDevice.WindowTranslucency.*;
public class GradientTranslucentWindowDemo extends JFrame {
public GradientTranslucentWindowDemo() {
super("GradientTranslucentWindow");
setBackground(new Color(0,0,0,0));
setSize(new Dimension(300,200));
setLocationRelativeTo(null);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel() {
@Override
protected void paintComponent(Graphics g) {
if (g instanceof Graphics2D) {
final int R = 240;
final int G = 240;
final int B = 240;
Paint p =
new GradientPaint(0.0f, 0.0f, new Color(R, G, B, 0),
0.0f, getHeight(), new Color(R, G, B, 255), true);
Graphics2D g2d = (Graphics2D)g;
g2d.setPaint(p);
g2d.fillRect(0, 0, getWidth(), getHeight());
}
}
};
setContentPane(panel);
setLayout(new GridBagLayout());
add(new JButton("I am a Button"));
add(new JSlider(1, 10));
}
public static void main(String[] args) {
// Determine what the GraphicsDevice can support.
GraphicsEnvironment ge =
GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
boolean isPerPixelTranslucencySupported =
gd.isWindowTranslucencySupported(PERPIXEL_TRANSLUCENT);
//If translucent windows aren't supported, exit.
if (!isPerPixelTranslucencySupported) {
System.out.println(
"Per-pixel translucency is not supported");
System.exit(0);
}
JFrame.setDefaultLookAndFeelDecorated(true);
// Create the GUI on the event-dispatching thread
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
GradientTranslucentWindowDemo gtw = new
GradientTranslucentWindowDemo();
// Display the window.
gtw.setVisible(true);
}
});
}
}