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Article View: borland.public.jbuilder.java.swing
Article #76

Re: GridBagLayout

#76
From: Hiroshi
Date: Fri, 23 Dec 2005 10:49
59 lines
3601 bytes
Thank you very much for your response. Yes, I'd like to try it out sometime.

I gave up GridBagLayout (since I didn't receive any response and since I didn't find anything on the Internet relating to my problem), and am using BoxLayout now as you suggested. Its behaviour is much predictable and logical; using struts and the nested Boxes, we can do what GrigBagLayout premisses, although code becomes longer and messy...)

Thanks again.


Infernoz <auto102767@hushmail.com> wrote:
>
>I suggest you use packer, a GridBagLayout helper, it is much easier to 
>use that GridBagLayout on it's own, see:
>https://packer.dev.java.net/
>
>BTW: There is some odd behaviour (IMHO bugs) in GridBagLayout, which I 
>found using packer, so it is worth trying extra constraints, even if 
>they don't make sense.  BoxLayout maybe useful if you get stuck and 
>don't have time to experiment.
>
>
>Hiroshi wrote:
>> Hi everyone, I am planning to post a dialog of 10 JPanels
>> using the layout, but I cannot make them aligned as I want.
>> Below is the code to illustrate the problem - some cells get
>> 2 cols while asking 1, and other gets 1 cell while asking 2.
>> 
>> JPanel pnls[]={
>>   new JPanel(),new JPanel(),new JPanel(),new JPanel(),
>>   new JPanel(),new JPanel(),new JPanel(),new JPanel(),
>>   new JPanel(),new JPanel()};
>> JLabel lbls[]={//digits ~ gridx,gridy,gridwidth,and gridheight
>>   new JLabel("0011"),new JLabel("1021"),new JLabel("3011"),
>>   new JLabel("0111"),new JLabel("1113"),new JLabel("2121"),
>>   new JLabel("0211"),new JLabel("2222"),new JLabel("0311"),
>>   new JLabel("0441")};
>> for (i=0;i<10;i++) pnls[i].add(lbls[i]);
>> int gx[]={0,1,3,0,1,2,0,2,0,0}, //gridx for i-th cell
>>     gy[]={0,0,0,1,1,1,2,2,3,4}, //gridy        "
>>     gw[]={1,2,1,1,1,2,1,2,1,4}, //gridwidth    "
>>     gh[]={1,1,1,1,3,1,1,2,1,1}; //gridheight   "
>> gbc.fill=GridBagConstraints.BOTH;
>> for (i=0;i<10;i++) {
>>   pnls[i].add(lbls[i]);          //(to make panels identifyable)
>>   gbc.gridx=gx[i]; gbc.gridy=gy[i];          //Set the position
>>   gbc.gridwidth=gw[i]; gbc.gridheight=gh[i]; //and the size
>>   gbl.setConstraints(pnls[i],gbc); //constraints for all cells.
>>   pnls[i].setBorder(BorderFactory.createEtchedBorder());
>>   dlgCp.add(pnls[i]);
>> }
>> super.setTitle("GridBagLayout Test");
>> setBounds(10,10,200,200);
>> show();
>> 
>> As you can see, cell "1113" (~gridx=1;gridy=1;gridwidth=1;
>> gridheight=3) gets 2 cols while asking 1, and cell "2121"
>> and "2222" get 1 col while asking 2...
>> 
>> Any idea? Thanks.
>> 
Technical Details
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Subject: Re: GridBagLayout
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