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| From | "Chris Smith" <chris.smith@THRWHITE.remove-dii-this> |
| Subject | Re: GridBagLayout and cha |
| Message-ID | <MPG.2070a65072e2ecc5989846@news.altopia.net> (permalink) |
| X-Comment-To | comp.lang.java.gui |
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| Date | Wed, 27 Apr 2011 15:32:27 GMT |
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To: comp.lang.java.gui
Daniel Pitts <googlegroupie@coloraura.com> wrote:
>
> Say I have the following code:
>
> JPanel myPanel = new JPanel(new GridBagLayout());
> GridBagConstraints constaints = getConstraints();
> myPanel.add(new JLabel("Hello world"), constaints);
>
> And then later (as a result of an Event), I do something like
> constraints.gridx = 3;
> myPanel.revalidate();
>
> Will this have the expected effect, or do I need to remove the old
> label, and re-add it with the new constraints?
The latter. The GridBagLayout class makes a copy of the layout
constraints when the device is added. In fact, it's fairly common to
create just one GridBagConstraints object, and use it to add a large
number of components by just changing the few properties that differ
each time.
--
Chris Smith
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GridBagLayout and changin "Daniel Pitts" <daniel.pitts@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Chris Smith" <chris.smith@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Knute Johnson" <knute.johnson@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Tom Hawtin" <tom.hawtin@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Daniel Pitts" <daniel.pitts@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "SadRed" <sadred@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Daniel Pitts" <daniel.pitts@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "SadRed" <sadred@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Daniel Pitts" <daniel.pitts@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Ian Wilson" <ian.wilson@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Daniel Pitts" <daniel.pitts@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Larry Barowski" <larry.barowski@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
Re: GridBagLayout and cha "Larry Barowski" <larry.barowski@THRWHITE.remove-dii-this> - 2011-04-27 15:32 +0000
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