• Please how is possible (probably dirty hack) to create How to Create Translucent and Shaped Windows

    • undecorated container (returns java.awt.IllegalComponentStateException: The frame is displayable.)

    • change Look and Feel for (returns AWT-EventQueue-0" java.awt.IllegalComponentStateException: The frame is decorated)

  • by using code from linked official tutorial

.

import java.awt.*;
import javax.swing.*;

public class TranslucentWindow extends JFrame {

    private static final long serialVersionUID = 1L;

    public TranslucentWindow() {
        super("Test translucent window");
        setLayout(new FlowLayout());
        add(new JButton("test"));
        add(new JCheckBox("test"));
        add(new JRadioButton("test"));
        add(new JProgressBar(0, 100));
        JPanel panel = new JPanel() {
            @Override
            public Dimension getPreferredSize() {
                return new Dimension(400, 300);
            }
            private static final long serialVersionUID = 1L;

            @Override
            protected void paintComponent(Graphics g) {
                super.paintComponent(g);
                g.setColor(Color.red);
                g.fillRect(0, 0, getWidth(), getHeight());
            }
        };
        panel.add(new JLabel("Very long textxxxxxxxxxxxxxxxxxxxxx "));
        add(panel);
        pack();
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //setUndecorated(true);
    }

    public static void main(String[] args) {
        try {
            for (UIManager.LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        /*JFrame.setDefaultLookAndFeelDecorated(true);*/
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                Window w = new TranslucentWindow();
                w.setVisible(true);
                com.sun.awt.AWTUtilities.setWindowOpacity(w, 0.7f);
            }
        });
    }
}

Edited 3 Years Ago by mKorbel

Here's a little demo I wrote a while ago that runs on Java 7 and has a transparent/shaped/undecorated window (JFrame window2). Maybe you can find what you need to know in this code? I remember that the order of the setUndecorated/setBackground/setOpacity/setVisible is critical. J.

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Shape;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Ellipse2D;
import java.lang.reflect.Method;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.Timer;


public class DemoWindows implements ActionListener {

   public static void main(String[] args) {
      // create a new demo, and update it every 50 mSec
      new Timer(30, new DemoWindows()).start();
   }

   int phase = 0; // demo runs a number of consecutive phases
   int count = 0; // each of which takes a number of timesteps

   JFrame window1 = new JFrame("Java windows demo");
   JLabel text1 = new JLabel("<HTML><H1>Hello" + "<BR>Everyone");
//         "<HTML><H1>This is a demo of some of the effects"
//         + "<BR>that can be achieved with the new Java"
//         + "<BR>transparent window methods</H1>"
//         + "<BR>(requires latest version of Java)");
   JFrame window2 = new JFrame("Java windows demo");
   JLabel text2 = new JLabel("<HTML><center>Java<BR>rocks");

   int w, h, r, x, y; // parameters of iris circle

   DemoWindows() {

      // build and diplay the windows
      window1.add(text1);
      window1.pack();
      window1.setLocationRelativeTo(null);
      window1.setVisible(true);

      window2.setUndecorated(true);
      window2.setBackground(new Color(0, 0, 0, 0)); // alpha <1 = transparent
      window2.setOpacity(0.0f);

      text2.setFont(new Font("Arial", 1, 60));
      text2.setForeground(Color.red);

      window2.add(text2);
      window2.pack();
      window2.setLocationRelativeTo(null);
      window2.setVisible(true);

      // parameters of the smallest circle that encloses window2
      // this is the starting pouint for the "iris out" effect
      w = window2.getWidth();
      h = window2.getHeight();
      r = (int) Math.sqrt(w * w + h * h) / 2; // radius
      x = w / 2 - r; // top left coordinates of circle
      y = h / 2 - r;

   }

   @Override
   public void actionPerformed(ActionEvent e) {
      // called by timer 20 times per sec
      // goes thru a number of phases, each a few seconds long
      switch (phase) {
      case 0: {
         // initial pause
         if (++count > 50) {
            phase = 1; // go to next phase
            count = 0;
         }
         break;
      }
      case 1: {
         // fade in
         if (++count < 100) {
            window2.setOpacity(0.01f * count);
         } else {
            phase = 2; // go to next phase
            count = 0;
         }
         break;
      }
      case 2: {
         // move
         if (++count < 160) {
            if (count < 28 || count > 80) // pause for best effect
               window2.setLocation(window2.getX() + 1, window2.getY() + 1);
         } else {
            phase = 3; // go to next phase
            count = 0;
         }
         break;
      }
      case 3: {
         // iris out
         if (++count < r) {
            Shape shape = new Ellipse2D.Double(x + count, y + count, 2 * (r - count),
                  2 * (r - count));
            window2.setShape(shape);
         } else {
            phase = 99; // go to final (exit) phase
         }
         break;
      }
      case 99:
         System.exit(0);
      }

   }

}

Edited 3 Years Ago by JamesCherrill: order of the setUndecorated/setBackground/setOpacity/setVisible is critical

  • interesting, required to create 1st JFrame like as SplashScreen, then is possible to create (delayed by Swing Timer, still not sure about, required another testing) another Top-Level Container

  • looks like as required to wait for all events are flushed and executed in EDT, probably reason why

  • thanks James, great mind with clear idea, found it :-)

.

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.Shape;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Ellipse2D;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class DemoWindows implements ActionListener {

    public static void main(String[] args) {
        // create a new demo, and update it every 50 mSec
        new Timer(30, new DemoWindows()).start();
    }
    int phase = 0; // demo runs a number of consecutive phases
    int count = 0; // each of which takes a number of timesteps
    JFrame window1 = new JFrame("Java windows demo");
    JLabel text1 = new JLabel("<HTML><H1>Hello" + "<BR>Everyone");
    // "<HTML><H1>This is a demo of some of the effects"
    // + "<BR>that can be achieved with the new Java"
    // + "<BR>transparent window methods</H1>"
    // + "<BR>(requires latest version of Java)");
    JFrame window2 = new JFrame("Java windows demo");
    JLabel text2 = new JLabel("<HTML><center>Java<BR>rocks");
    JButton button = new JButton("Whatever");
    int w, h, r, x, y; // parameters of iris circle

    DemoWindows() {
        // build and diplay the windows
        window1.add(text1);
        window1.pack();
        window1.setLocationRelativeTo(null);
        window1.setVisible(true);
        window2.setUndecorated(true);
        window2.setBackground(new Color(0, 0, 0, 0)); // alpha <1 = transparent
        window2.setOpacity(0.0f);
        text2.setFont(new Font("Arial", 1, 60));
        text2.setForeground(Color.red);
        window2.add(text2);
        window2.add(button, BorderLayout.SOUTH);
        window2.pack();
        window2.setLocationRelativeTo(null);
        window2.setVisible(true);
        // parameters of the smallest circle that encloses window2
        // this is the starting pouint for the "iris out" effect
        w = window2.getWidth();
        h = window2.getHeight();
        r = (int) Math.sqrt(w * w + h * h) / 2; // radius
        x = w / 2 - r; // top left coordinates of circle
        y = h / 2 - r;
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        try {
            UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(DemoWindows.class.getName()).log(Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            Logger.getLogger(DemoWindows.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            Logger.getLogger(DemoWindows.class.getName()).log(Level.SEVERE, null, ex);
        } catch (UnsupportedLookAndFeelException ex) {
            Logger.getLogger(DemoWindows.class.getName()).log(Level.SEVERE, null, ex);
        }
        SwingUtilities.updateComponentTreeUI(window2);
        // called by timer 20 times per sec
        // goes thru a number of phases, each a few seconds long
        switch (phase) {
            case 0: { // initial pause               
                if (++count > 50) {
                    phase = 1; // go to next phase
                    count = 0;
                }
                break;
            }
            case 1: { // fade in               
                if (++count < 100) {
                    window2.setOpacity(0.01f * count);
                } else {
                    phase = 2; // go to next phase
                    count = 0;
                }
                break;
            }
            case 2: { // move               
                if (++count < 160) {
                    if (count < 28 || count > 80) {// pause for best effect
                        window2.setLocation(window2.getX() + 1, window2.getY() + 1);
                    }
                } else {
                    phase = 3; // go to next phase
                    count = 0;
                }
                break;
            }
            case 3: {// iris out                
                if (++count < r) {
                    Shape shape = new Ellipse2D.Double(
                            x + count, y + count, 2 * (r - count), 2 * (r - count));
                    window2.setShape(shape);
                } else {
                    phase = 99; // go to final (exit) phase
                }
                break;
            }
            case 99:
                System.exit(0);
        }
    }
}
  • half the solution in Java 7, is possible to create undecorated container, everything depends of proper ordering of methods

  • still not solution, possible to create decorated container and with changed Look And Feel

.

import java.awt.*;
import javax.swing.*;

public class TranslucentWindow extends JFrame {

    private static final long serialVersionUID = 1L;

    public TranslucentWindow() {
        super("Test translucent window");
        setLayout(new FlowLayout());
        add(new JButton("test"));
        add(new JCheckBox("test"));
        add(new JRadioButton("test"));
        add(new JProgressBar(0, 100));
        JPanel panel = new JPanel() {
            @Override
            public Dimension getPreferredSize() {
                return new Dimension(400, 300);
            }
            private static final long serialVersionUID = 1L;

            @Override
            protected void paintComponent(Graphics g) {
                super.paintComponent(g);
                g.setColor(Color.red);
                g.fillRect(0, 0, getWidth(), getHeight());
            }
        };
        panel.add(new JLabel("Very long textxxxxxxxxxxxxxxxxxxxxx "));
        add(panel);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setUndecorated(true);
        pack();
        setLocationRelativeTo(null);
        setOpacity(0.70f);
    }

    public static void main(String[] args) {
        try {
            for (UIManager.LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        //JFrame.setDefaultLookAndFeelDecorated(true);
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                Window w = new TranslucentWindow();
                w.setVisible(true);
            }
        });
    }
}
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