Home » Eclipse Projects » Remote Application Platform (RAP) » How to Center a Button
| How to Center a Button [message #26999] |
Wed, 23 May 2007 14:24  |
 Roberto Sanchez
Messages: 82
Registered: July 2009 |
Member |
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Hi, I'm not able to center a Button widget in a Composite, I know that
my problem sounds easy to solve, but I can't see the problem:
My code:
Composite comp = new Composite(parent, SWT.BORDER);
GridData gdata = new GridData(SWT.CENTER, SWT.DEFAULT, false, false);
gdata.widthHint = parent.getShell().getSize().x - 4;
comp.setLayoutData(data);
GridLayout gridLayout = new GridLayout(1, true);
comp.setLayout(gridLayout);
gdata = new GridData(SWT.CENTER, SWT.DEFAULT, false, false);
gdata.heightHint = 22;
gdata.widthHint = 90;
final Button loginButton = new Button( comp, SWT.PUSH | SWT.FLAT);
loginButton.setText( "OK" );
loginButton.setImage(Iconos.ICO_OK);
loginButton.setLayoutData(gdata);
Does anyone see what I'm doing wrong ?
Thanks in advance.
Roberto.
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| Re: How to Center a Button [message #27039 is a reply to message #26999] |
Wed, 23 May 2007 19:04  |
Eclipse User |
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Originally posted by: rsternberg.innoopract.com
Hi Roberto,
I guess that your button is well centered within the cell, but the cell
is just as wide as the button. Try to change the line
> gdata = new GridData(SWT.CENTER, SWT.DEFAULT, false, false);
into
gdata = new GridData(SWT.CENTER, SWT.DEFAULT, true, false);
This lets the column of the GridLayout grow to the available horizontal
width.
If this doesn't help, make sure that the Composite comp is as large as
you expect it to be, e.g. by setting a background color on it.
Hope that helps,
Ralf
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| Re: How to Center a Button [message #27118 is a reply to message #27039] |
Thu, 24 May 2007 07:55 |
Roberto Sanchez
Messages: 82
Registered: July 2009 |
Member |
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OK, now it works, I was confused about grabExcessHorizontalSpace
behaviour, I though that It affects to cell content, but in fact, It
only affects to cell itself, not to the content.
Thank you and I'm sorry for this so basic question ;-)
Roberto.
Ralf Sternberg escribió:
> Hi Roberto,
>
> I guess that your button is well centered within the cell, but the cell
> is just as wide as the button. Try to change the line
>
>> gdata = new GridData(SWT.CENTER, SWT.DEFAULT, false, false);
>
> into
>
> gdata = new GridData(SWT.CENTER, SWT.DEFAULT, true, false);
>
> This lets the column of the GridLayout grow to the available horizontal
> width.
>
> If this doesn't help, make sure that the Composite comp is as large as
> you expect it to be, e.g. by setting a background color on it.
>
> Hope that helps,
>
> Ralf
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