Setting frame minimum size

[Anna Hays]

Hi, I am trying to make the frame to have a minimum size so that it won't resize to one pixel. There are 2 ways I can think of to do this.

1. make the frame to have a minimum size.
2. make all main (in the content pane) components to have a minimum size so that if I add another one, the minimised frame will still show all components.

Since I can't find frame can set a minimum size, so 2 is the way to go. And I think 2 is better way as well, am I right? Should the frame have a minimum size too?

Thanks for any advice.

[Anna Hays]

Hi again, just realise 2 won't work. I have give the components a minimum size, but the frame can still resize pass the minimum size. Can someone help me please?

[Anton Golovin]

Hi, Anna. I think this may be a good solution. The componentResized event handler could set the minimum size.

 
class MyFrame extends JFrame {
 
.
.
.
 
MyFrame() {
this.addComponentListener(new JFrameMinimumSizeAdapter(this));
 
.
.
.
 
}
 
void componentResized(ComponentEvent e) {
// the code goes here...
}
 
.
.
.
 

... the Adapter:

 
class JFrameMinimumSizeAdapter extends java.awt.event.ComponentAdapter {
    MyFrame adaptee;
 
    JFrameMinimumSizeAdapter(MyFrame adaptee) {
        this.adaptee = adaptee;
    }
    public void componentResized(ComponentEvent e) {
        adaptee.componentResized(e);
    }
}
 

Hope this info is what you are looking for I hope the mechanism will be helpful to your project.

Sincerely,

Anton.

[ October 16, 2004: Message edited by: Anton Golovin ]
[ October 16, 2004: Message edited by: Anton Golovin ]

[peter wooster]

Here's the code to do that, implemented as an anonymous inner class:

        frame.addComponentListener( new ComponentAdapter() {
            public void componentResized(ComponentEvent e) {
                int width = frame.getWidth();
                int height = frame.getHeight();
 
                if (width < minWidth) width = minWidth;
                if (height < minHeight) height = minHeight;
 
                frame.setSize(width, height);
            }
        });