[5128] in java-interest
GridBagLayout, and other layout problems.
daemon@ATHENA.MIT.EDU (James Waldrop)
Mon Jan 29 20:34:57 1996
To: java-interest@java.sun.com
Date: Mon, 29 Jan 1996 16:06:32 -0800
From: James Waldrop <sulam@construct.net>
Ok, I can't wait for a decent Layout manager tutorial. I'm trying to
use GridBagLayout, and having quite a few problems.
The general thing I want to see is:
_______________________________
| |
| A |
|_______________________________|
_______________________________
| |
| B |
|_______________________________|
_______________________________
|______________C________________|
Where:
A: is a subclass of Panel which contains a subclass of Canvas that an
image is drawn onto.
B: is a Panel which contains a TextArea.
C: is a Panel which contains a TextField.
Here's my code so far, please note the comments:
public void init() {
GridBagLayout gridBag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
c.fill = GridBagConstraints.BOTH;
// setLayout(new FlowLayout()); // default, doesn't show A ??
// setLayout(gridBag); // I can't make it show component A
// setLayout(new BorderLayout()); // Also doesn't show component A
setLayout(new GridLayout(3, 0)); // This works, but isn't what I want
// C is much too large...
c.gridwidth = GridBagConstraints.REMAINDER;
topPanel = new ImagePanel(this);
gridBag.setConstraints(topPanel, c);
add(topPanel);
// add("North", topPanel); // Nope, it doesn't show up.
Panel midPanel = new Panel();
gridBag.setConstraints(midPanel, c);
add(midPanel);
outputArea = new TextArea(14,80);
midPanel.add(outputArea);
Panel bottomPanel = new Panel();
gridBag.setConstraints(bottomPanel, c);
add(bottomPanel);
inputArea = new TextField(80);
bottomPanel.add(inputArea);
}
I've tried explicitly setting gridx and gridy, played with weight, and
of course used gridheight and gridwidth, all to no effect.
Any advice?
James
--
James Waldrop / Technical Director
sulam@construct.net / Construct Internet Design
sulam@well.com / http://www.construct.net
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