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sizing Text [message #467015] Sun, 22 January 2006 21:22 Go to next message
Carl Hagenmaier is currently offline Carl HagenmaierFriend
Messages: 11
Registered: July 2009
Junior Member
I am trying to create a WizardPage that contains, along with other things,
a Text object. I want to size the WizardDialog, and let the Text fill the
available horizontal space, REGARDLESS of the length of the string
contained in the Text object.

This seems like a reasonable configuration, but I can't figure out how to
implement it.

It seems that if I don't set width hint on the Text, when I add the wizard
page it recomputes the size of the page based on the length of the actual
string. In my case this means a HUGE dialog. If I set width hint, the
Text object doesn't fill the dialog even though the GridData is set for
grab horizontal.

Any suggestions?
Re: sizing Text [message #467016 is a reply to message #467015] Sun, 22 January 2006 22:19 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: richkulp.us.NO_SPAM.ibm.com

Use the width hint but also use FILL_HORIZONTAL. Grab says to expand the
cell that the control is in to use whatever extra space is available,
but FILL tells it to ALSO size the control to that cell's width,
otherwise it will size the control only to the preferred size, which is
the width hint.

Carl Hagenmaier wrote:
> I am trying to create a WizardPage that contains, along with other
> things, a Text object. I want to size the WizardDialog, and let the
> Text fill the available horizontal space, REGARDLESS of the length of
> the string contained in the Text object.
>
> This seems like a reasonable configuration, but I can't figure out how
> to implement it.
>
> It seems that if I don't set width hint on the Text, when I add the
> wizard page it recomputes the size of the page based on the length of
> the actual string. In my case this means a HUGE dialog. If I set width
> hint, the Text object doesn't fill the dialog even though the GridData
> is set for grab horizontal.
>
> Any suggestions?
>
>
>

--
Thanks,
Rich Kulp
Re: sizing Text [message #467017 is a reply to message #467016] Mon, 23 January 2006 00:27 Go to previous messageGo to next message
Daniel Spiewak is currently offline Daniel SpiewakFriend
Messages: 263
Registered: July 2009
Senior Member
Actually, you can get away with just using grabHorizontal... and horizontalAlignment = SWT.FILL widthHint is ignored when the other two values are set as above.
Re: sizing Text [message #467021 is a reply to message #467017] Mon, 23 January 2006 03:29 Go to previous messageGo to next message
Carl Hagenmaier is currently offline Carl HagenmaierFriend
Messages: 11
Registered: July 2009
Junior Member
I've tried both of these suggestions, and ...

My problem is that I cannot get the "filling/grabbing" Text *AND* limit
the size of the dialog. I use WizardDialog.setPageSize(xsize, ysize) to
set the size I want. But along the way (WizardDialog.setWizard ->
updateSizeForWizard -> calculatePageSizeDelta) computeSize(SWT.DEFAULT,
SWT.DEFAULT, true) is called on the control for the WizardPage. Because
of the "SWT.DEFAULT", computeSize returns the size unrestricted by my
previous setPageSize, that is, it returns a size large enough to display
the entire string in the Text, that is, BIG.

I can debug and change the SWT.DEFAULTs in computeSize to xsize and ysize
and it works just fine. My gut says overriding methods in WizardDialog is
NOT the thing to do, but what else is there?
Re: sizing Text [message #467032 is a reply to message #467021] Mon, 23 January 2006 15:49 Go to previous messageGo to next message
Veronika Irvine is currently offline Veronika IrvineFriend
Messages: 1272
Registered: July 2009
Senior Member
If you specify a widthHint for the GridData of the Text widget, this will be
used when computeSize(SWT.DEFAULT, SWT.DEFAULT) is called on the control
for the WizardPage.

public static void main (String [] args) {
String string = "Adding SWT Appeal to your Application\nSWT is a
widget toolkit for Java designed to provide efficient, portable access to
the user-interface facilities of the operating systems on which it is
implemented. It provides a rich set of native widgets for user interface
design. In 3.1 and 3.2, SWT has introduced many new features to
differentiate your application and give it polish. This talk will describe
ways you can use these features to spice up your application.";
Display display = new Display ();
Shell shell = new Shell (display);
shell.setLayout(new FillLayout());
Composite parent = new Composite(shell, SWT.NONE);
parent.setLayout(new GridLayout(2, false));
Text t = new Text(parent, SWT.WRAP | SWT.BORDER);
t.setText(string);
GridData data = new GridData(SWT.FILL, SWT.TOP, true, false);
data.widthHint = 200;
t.setLayoutData(data);
Button b = new Button(parent, SWT.PUSH);
b.setText("Button 1");
b = new Button(parent, SWT.PUSH);
b.setText("Button 2");
b = new Button(parent, SWT.PUSH);
b.setText("Button 3");
b = new Button(parent, SWT.PUSH);
b.setText("Button 4");
shell.pack();
shell.open ();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ()) display.sleep ();
}
display.dispose ();
}

"Carl Hagenmaier" <carl@voxa.com> wrote in message
news:67def13b4bca8a7df7bf0402e58ea0d4$1@www.eclipse.org...
> I've tried both of these suggestions, and ...
>
> My problem is that I cannot get the "filling/grabbing" Text *AND* limit
> the size of the dialog. I use WizardDialog.setPageSize(xsize, ysize) to
> set the size I want. But along the way (WizardDialog.setWizard ->
> updateSizeForWizard -> calculatePageSizeDelta) computeSize(SWT.DEFAULT,
> SWT.DEFAULT, true) is called on the control for the WizardPage. Because
> of the "SWT.DEFAULT", computeSize returns the size unrestricted by my
> previous setPageSize, that is, it returns a size large enough to display
> the entire string in the Text, that is, BIG.
>
> I can debug and change the SWT.DEFAULTs in computeSize to xsize and ysize
> and it works just fine. My gut says overriding methods in WizardDialog is
> NOT the thing to do, but what else is there?
>
Re: sizing Text [message #467046 is a reply to message #467032] Mon, 23 January 2006 18:55 Go to previous message
Carl Hagenmaier is currently offline Carl HagenmaierFriend
Messages: 11
Registered: July 2009
Junior Member
Thanks Veronika

-c
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