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Search form with a tiled image background and transparent components.

Posted on 2001-08-20
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Last Modified: 2010-05-18
I'm trying to make a search form with labels, text fields and combo boxes.  I also need the background component(not sure if it should be a panel, frame or what) to use an image and tile it. Not really sure where I should start or how/if this can be done... I made a panel that will tile an image, but it hides all components that I add to it. Like the painting of the image goes on top of the components.
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Question by:kllewelyn
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Expert Comment

by:hquoc
ID: 6408364
Hi kllewelyn,
For ur quest, i see, u want to tile a background image on a container either Frame or Panel object. And then, u will lay a lables, textfields, combos on the container, ok.
I think u should use the swing object such as JPanel for container objects, and other are also swing objects.
And nextly, u may be, using snippet such below to load an background image:
//Create a panel object, after u will use it in ur main apps
class ImagePane extends JPanel {
        Image background;
   
        public ImagePane(Image background{
            this.background = background;
        }
        //Draw the current frame of image.
        public void paintComponent(Graphics g) {
            super.paintComponent(g);  //paint any space not covered
                                      //by the background image
            int compWidth = getWidth();
            int compHeight = getHeight();
            int imageWidth, imageHeight;
   
            //If u have a valid width and height for the
            //background image, draw it.
            imageWidth = background.getWidth(this);
            imageHeight = background.getHeight(this);
            if ((imageWidth > 0) && (imageHeight > 0)) {
                g.drawImage(background,
                            (compWidth - imageWidth)/2,
                            (compHeight - imageHeight)/2, this);
            }
        }
}

In the main program, u have to import the above class and then inserting following snippet:

Image bgImage = Toolkit.getDefaultToolkit().getImage("filename");
ImagePane p = new ImagePane(bgImage);
p.add(JLabel);//so on
Frame.add(p, BorderLayout.CENTER);


i hope it will help u,
regards,
huuquoc
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Accepted Solution

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objects earned 200 total points
ID: 6408744
Sounds like your overriding paint() instead of paintComponent().
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Author Comment

by:kllewelyn
ID: 6409886
Is it bad to use swing components? I mean, what version of explorer can handle the swing components? I was using AWT because I heard they are supported by earlier versions.
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Author Comment

by:kllewelyn
ID: 6410110
Is it bad to use swing components? I mean, what version of explorer can handle the swing components? I was using AWT because I heard they are supported by earlier versions.
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LVL 92

Expert Comment

by:objects
ID: 6411559
> what version of explorer can handle the swing components?

It's not dependant on the explorer version, it's related to your jre.
But Swing is supported by jre 1.1+.

Though it is not a standard part of the jre until 1.2.

To use Swing in an applet you'll generally need the plugin installed.

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