Animated Gif Repaint

I knew I was going to end up here eventually, stupid animated gifs.
First of all, I get weird drawing artifacts on an animated gif on jkd 1.5, I upped this to 1.6 and everything is cool with displaying the gif. It could be because I'm running JBuilder in a XP VM. I don't really care how to fix this, or if its even fixable, I'm just pointing it out.
I have an animated gif in an imageicon. The program is hangman, and the gif shows a stick figure walking up onto the podium to get hung. I would like to play the gif once, every time the "New Game" button is clicked. I have tried a variety of things to do so, including JLabel1.repaint(); calling the label again, etc, etc. I'll try to post the relevant bits of my code.
public class HangFrame
    extends JFrame implements ActionListener {
public HangFrame()
    try {
      jbInit();
    catch (Exception ex) {
      ex.printStackTrace();
}jbinit calls the placement of all the items.
    jLabel1.setBounds(new Rectangle(19, 57, 550, 400));
public void actionPerformed(ActionEvent e) {
    if (e.getSource() == start) {
      start();
....'start' is my name for the button that reads "New Game".
The start method contains:
ImageIcon maingif = new ImageIcon( (ClassLoader.getSystemResource(
        "hang1.gif")));
     jLabel1.setIcon(maingif);
//I've been trying different stuff right here, like repaint.The image displays correctly, and runs once (per the setting I gave it in flash, or thats how java does it).
I've searched extensively (seems I got lucky by just managing to get it to display once :D). I saw that I might have to flush the image or something like that, but I'm not really sure what that means. I've never had any experience with the graphics and paint component, most of the work we do in class is console and algorithm stuff. I got bored over break and made my hangman into a swing app. I'd appreciate any help.
Oh, and sorry if this should be in the swing subforum, I figured my issue was too basic for it.
Edited by: rpk5000 on Dec 31, 2007 8:52 AM

rpk5000 wrote:
This is where you're wrong. Dipshits like you post **** like this all the time when it's readily available information that can be searched for WITHOUT >hosing up our forums.Great, give me a link, or even a search term to use on google or these forums. Before you give me search terms, you might want to actually check and make sure the answer is somewhere there...are you out of your freakin mind?!?!?!
go to google and type "java gif animation"
you think you're the first person to want to do this?!?!
moreover, search the forums here
you think you're the first person to ask for this here?!?!
You would think "repainting an imageicon animated gif java" would give a page that has the answer on it within the first 10 results but....
I'm looking for a page that simply says, take your imageicon and call.... (repaint();) or whatever to make it run one more time.Did you even read the API for ImageIcon! It took me 2 seconds to find the information for animating gifs as imageicons.
Well Java just sucks now doesn't it. Stop using animated gifs and Java since they suck. There, problem solved!I like Java a lot, I'm just saying, in certain instances it seems to fall short.No, YOU fall short. I found the solution in 3 seconds.
This is a "New to Java" subforum, if you can't handle helping people in a pleasant manner, that shows you respect the other person, what do you think people will think of you and java. If I spent more time on forums like this, and was looking at which language to try, I doubt I would pick java.I don't care what you think of me OR Java. I'm tired of noobs wasting forum resources with this crap. Once I was new to everything, but I went to the library and when the internet came along i learned how to search it!
Critical thinking people. Don't we teach this in schools any more?!
When it becomes an Internet joke (http://thedailywtf.com/Articles/plz-email-me-teh-codez.aspx) about how bad the sun forums are, well, you really need to reconsider what you want to do with your life.
LMAO! You are the daily WTF!
Edited by: wpafbuser1 on Dec 31, 2007 1:52 PM

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I've heard of that problem before... I think it has something to do with how the image is loaded. I found an example of how Sun does animated gifs here: http://java.sun.com/products/java-media/2D/samples/suite/Image/DukeAnim.java
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...code here...
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g.drawImage(img, x + 28, y + 79, this);A code snippet would be helpful as I am only two weeks into Java and have difficultly reading the Sun documentation.
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deltacoder, I tried what you suggested in the code below, to keep the images inside an array of 20 and to rotate them as soon as the image is displayed.
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          images[i] = new ImageIcon(dir + imageNm + num + ".jpg");
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Animated GIF in a StyledEditorKit?

Im trying to figure out how to add support for animated gifs to the StyledEditorKit. This must be possible somehow since the HTMLEditorKit supports animated gifs.
My problem is that I can't quite figure out where to start. I have tried just creating an ImageObserver that tells the component to repaint every time a new frame is loaded, but that didn't seem to do anything.
I think I have to create a new View and create my own ViewFactory to generate it, but how can I let the component know that it has to redraw a particular view?
Dave

whooo :( you mean making a customized button ?
like : public class MyButton extends AbstractButton{
public void paintComponents(Graphics g){
...//img1 - wait 15ms - img2 - wait15ms - img3 - etc
}that would be a solution, but i was pretty sure it would be possible to do more simple, and that i only forgot a very small thing to make it work...

Refreshing animated gif in Jlabel

Hi,
I've created a GUI for a cashmachine application and have the problem that my animated GIF's work on the first call, but only display the last frame of the animation on subsequent calls.
I've tried alot of things, including validate, repaint, refresh but im running out of ideas!
I have come to this assumption because I have created a copy of the animation and imported that on the second call and it works like it should. However once again on subsequent calls it simply displays the last from and doesn't animate.
The code looks like this:
public JLabel getInsertCardGraphic() {
          /* Imports the enter card gif */
          ImageIcon enterCardGraphic= new ImageIcon(LOCATION+"moving-card2.gif");
          JLabel enterCardHolder = new JLabel(enterCardGraphic);
          return enterCardHolder;
     }which is called from:
public void actionPerformed(ActionEvent evt) {
          playBeep();          //not related to problem
          eastPane.removeAll();
          eastPane.add(getInsertCardGraphic(), BorderLayout.CENTER); //called here
          eastPane.add(getCashSlotImage(), BorderLayout.SOUTH);
          eastPane.validate();
          String cardNum = cardlist.getSelectedItem().toString(); //unrelated code
          char[] pinArray = new char[4];
          pinArray[0] = cardNum.charAt(12);
                pinArray[1] = cardNum.charAt(8);
                pinArray[2] = cardNum.charAt(4);
                pinArray[3] = cardNum.charAt(0);
          String encryptedPIN = new String(pinArray);
          // Tell controller that a card has been entered.
          Controller.getInstance("Ipl/ATM/Model/Model").cardEntered( cardlist.getSelectedItem().toString(), encryptedPIN);
     }if anyone has any suggestions on what I should do I will be extremely greatful!!
Cheers,
Hakan
Edited by: hakz on Nov 13, 2007 5:01 AM

Animated gif is working fine for me.
You can check the delay time between the images in the gif, to see that it's not too short.
Here's a simple example:import java.net.URL;
import javax.imageio.ImageIO;
import javax.imageio.stream.ImageInputStream;
import javax.swing.ImageIcon;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import com.sun.imageio.plugins.gif.GIFImageMetadata;
import com.sun.imageio.plugins.gif.GIFImageReader;
public class AnimatedGifTest {
    public static void main(String[] args) {
        try {
            JFrame frame = new JFrame();
            frame.setDefaultCloseOperation(JDialog.EXIT_ON_CLOSE);
            URL url = new URL("http://www.gifanimations.com/action/SaveImage?path=/Image/Animations/Cartoons/~TS1176984655857/Bart_Simpson_2.gif");
            frame.add(new JLabel(new ImageIcon(url)));
            frame.pack();
            frame.setVisible(true);
            // Read the delay time for the first frame in the animated gif
            GIFImageReader reader = (GIFImageReader) ImageIO.getImageReadersByFormatName("GIF").next();
            ImageInputStream iis = ImageIO.createImageInputStream(url.openStream());
            reader.setInput(iis);
            GIFImageMetadata md = (GIFImageMetadata) reader.getImageMetadata(0);
            System.out.println("Time Delay = " + md.delayTime);
            reader.dispose();
            iis.close();
        } catch (Exception e) {e.printStackTrace();}
}

JFileChooser animated gif preview

I'm using an Accesory with an ImageIcon to preview images on a JFileChooser.
It works ok, but I would like to know how do I get those animated gif to restart their animation whenever I click some other file (so the image preview goes to null) and click back on them.
There are non-looped gifs and looped ones, it is specially for the non-looped gifs as to give a way to get to see the animation again. After clicking the file once the animation never plays again, even if a load another preview by clicking another file and then go back...
Since there's no obvious method on ImageIcon or Image I tried flush since it says it clears the data but the only thing I got was the gif animating improperly (it would get trash/noise).
* JFileChooserImagePreview.java
* Created on 16 de junio de 2005, 12:58 AM
package ptcg.win.util;
import javax.swing.*;
import java.beans.*;
import java.awt.*;
import java.io.File;
/* from FileChooserDemo2.java. */
public class JFileChooserImagePreview extends javax.swing.JComponent implements PropertyChangeListener {
     public JFileChooserImagePreview(JFileChooser fc) {
          setHeight = -1;
          setWidth = -1;
          setPreferredSize(new Dimension(100, 50));
          fc.addPropertyChangeListener(this);
     public JFileChooserImagePreview(JFileChooser fc, int setHeight, int setWidth) {
          this.setHeight = setHeight;
          this.setWidth = setWidth;
          setPreferredSize(new Dimension(setHeight, setWidth));
          fc.addPropertyChangeListener(this);
     public void propertyChange(PropertyChangeEvent e) {
          boolean update = false;
          String prop = e.getPropertyName();
          //If the directory changed, don't show an image.
          if(JFileChooser.DIRECTORY_CHANGED_PROPERTY.equals(prop)) {
               file = null;
               update = true;
          } else if (JFileChooser.SELECTED_FILE_CHANGED_PROPERTY.equals(prop)) {
               file = (File) e.getNewValue();
               update = true;
          //Update the preview accordingly.
          if (update) {
               thumbnail = null;
               if(isShowing()) {
                    loadImage();
                    repaint();
     public void loadImage() {
          if (file == null) {
               thumbnail = null;
               return;
          ImageIcon tmpIcon = new ImageIcon(file.getPath());
          if (tmpIcon != null) {
               Image i = tmpIcon.getImage();
               //i.flush(); //screws the animation
               thumbnail = new ImageIcon(i.getScaledInstance(setHeight, setWidth, Image.SCALE_SMOOTH));
     protected void paintComponent(Graphics g) {
          if (thumbnail == null) {
               loadImage();
          if (thumbnail != null) {
               int x = getWidth()/2 - thumbnail.getIconWidth()/2;
               int y = getHeight()/2 - thumbnail.getIconHeight()/2;
               if (y < 0) {
                    y = 0;
               if (x < 5) {
                    x = 5;
               thumbnail.paintIcon(this, g, x, y);
     ImageIcon thumbnail = null;
     File file = null;
     int setHeight, setWidth;
}Thanks in advance

Never-mind. I have it working properly now.

Animated gifs in applets

Ive tried to display an animated gif in an applet and it only shows the first frame. What is the code to do this and it be animated?

IIRC, every time you repaint the applet that contains the gif, the correct frame of the (multi-frame, animated) gif will be rendered.
So if you create a thread that just calls repaint() every half-second or so, you should see the gif move.
Usually it isn't necessary to do this explicitly, because there's already a thread updating state and repainting, for some other purpose.

Animated Gif Repaint

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