Can you use two images and fade one into the other?

[Klaas Vredevort]

Hey

Is it possible to use two pictures in java and fade one into another? like the one slowly fading away and the next one fading to the foreground?

Klaas

[Matti Poro]

http://java.sun.com/docs/books/tutorial/2d/index.html

Override JPanel's paintComponent(Graphics g) method:

 
  protected void paintComponent(Graphics g1) {
    Graphics2D g = (Graphics2D) g1;
    super.paintComponent(g);
    
    g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
    g.drawImage(image1, 0, 0, null);
    g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f - alpha));
    g.drawImage(image2, 0, 0, null);
  }

Then use a thread to increase or decrease the alpha value.

[David Irwin]

Originally posted by Klaas Vredevort:
Hey

Is it possible to use two pictures in java and fade one into another? like the one slowly fading away and the next one fading to the foreground?

Klaas

This may not directly answer your question, but I've used the JGoodies animation library and it's quite cool. You may want to check it out and see if it's applicable to your needs.

Good luck!

Dave