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How to draw image on top most Layer?

Posted on 2004-03-22
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Last Modified: 2012-08-14
my java file is @ http://www.geocities.com/giasens/files/JavaBingo.zip

i have created CardLayout,
inside a "card", i hav many inner BorderLayout(s)
now, i just realise i couldnt drawImage on my top most layer...

can any one HELP me?? thanks.. ..

btw, can anyone suggest me where to learn paint() ??
i couldnt get what's repaint() about...

thanks again.
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Question by:SaiSeng
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13 Comments
 
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Expert Comment

by:CEHJ
ID: 10649191
Why not just add an Image in an ImageIcon in a JLabel?
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CEHJ earned 125 total points
ID: 10649203
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Author Comment

by:SaiSeng
ID: 10649214
btw, the following image shows what i want to paint on
http://www.geocities.com/giasens/files/myBox.JPG

thanks
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Expert Comment

by:CEHJ
ID: 10649254
Yes. where it's marked 'box' should be a JLabel with your image in it, as shown in the above example
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Expert Comment

by:Webstorm
ID: 10649279
Hi SaiSeng,

Your links seems not good : "This page is not available. " or "Sorry, the page you requested was not found. "

>> i just realise i couldnt drawImage on my top most layer...
  public void paint(Graphics g)
  {
     g.drawImage(img,0,0,null); // Image img already loaded
  }

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Expert Comment

by:Webstorm
ID: 10649325
>> Your links seems not good
In fact your links are good if we first visit your home page : http://www.geocities.com/giasens/

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Expert Comment

by:Webstorm
ID: 10649339
Replace:
      public void paint(Graphics g)
      {
             g.drawImage(box, 80, 80, this);
      }

By:
      public void paint(Graphics g)
      {
                      g.drawImage(box, 80, 80, this);
                      super.paint(g); // for lightweight child components
      }
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Expert Comment

by:CEHJ
ID: 10649359
>>public void paint(Graphics g)

Actually that is not the way to do things if using Swing. See here for how to:

http://www.experts-exchange.com/Programming/Programming_Languages/Java/Q_20927185.html
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Expert Comment

by:Webstorm
ID: 10649377
By:
     public void paint(Graphics g)
     {
            g.drawImage(box, 20, 140, this);  // 20,140 as in myBox.jpg
            super.paint(g); // for lightweight child components
     }
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Expert Comment

by:Webstorm
ID: 10649409
You can wait until the image is loaded:

   public void init()
   {
        box = getImage(getCodeBase(), "box.jpg");
        MediaTracker tracker = new MediaTracker(this);
        tracker.addImage(box, 0);
        try{
        tracker.waitForAll();
        }catch(Exception e){e.printStackTrace();}
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Expert Comment

by:CEHJ
ID: 10649461
Using an ImageIcon will get you out of all the little gotchas caused by Java loading its images aynchronously, apart from saving you having to rewrite your JPanel as a JPanel subclass
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Author Comment

by:SaiSeng
ID: 10657782
paint doesnt help... but Jlabel...
thanks anyway ;)
now i'm trying to addMouseListener on the icon ;)

/*
 * ImageIcon icon = new ImageIcon("box.jpg");
 * JLabel label = new JLabel(icon);
 */
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Expert Comment

by:CEHJ
ID: 10658105
:-)
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