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POSwing GroupLayout: Resizing and limiting component sizes
 

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    <p>I'm using <code>GroupLayout</code> to manage components in some dynamically generated data input forms. The layout is more or less like so:</p> <pre><code>*-----------------------------------------------* | label A | field A | | label B | field B | | label C | field C | *-----------------------------------------------* </code></pre> <p>I'm using 2 parallel groups for the horizontal layout, and a single sequential group for the vertical layout. For the most part, everything is working just fine.</p> <p>I want to limit the maximum width of the labels (which are just instances of <code>JLabel</code>) to 1/3 of the width of the parent <code>JFrame</code>. If the <code>JFrame</code> was a fixed size this would be trivial, but I have to deal with it being resized.</p> <p>I'm picking up <code>ComponentListener.componentResized()</code> events from the <code>JFrame</code> but I'm a bit stuck on what to do once I receive such an event.</p> <p>I've tried this approach without any luck:</p> <pre><code>public void componentResized(ComponentEvent e) { int maxW = parentFrame.getWidth() / 3; for (JLabel l : labels) { l.setMaximumSize( // have also tried setSize() and setPreferredSize() new Dimension( Math.min(l.getSize().width, maxW), l.getMaximumSize().height)); } groupLayout.invalidateLayout(getContentSpace()); } </code></pre> <p><b>Can anyone suggest a way to limit the width of the labels which will work?</b></p> <p>I could probably rebuild the layout from scratch every time, but I feel like there ought to be a simpler way.</p>
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    1. COdon't setXXSize ever: http://stackoverflow.com/questions/7229226/should-i-avoid-the-use-of-setpreferredmaximumminimumsize-methods-in-java-swi
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    2. COIs there any reason for a label to grow larger than the preferred size of the largest label?
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    3. CO@trashgod No there isn't. I'm wanting to set an upper bound on the width of the labels, not a minimum bound. Have edited the question to make that clearer.
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