[news.eclipse.platform.swt] Re: Resizing Shell

[Julien <julien.mengelle@xxxxxxxxx>]

Hello, me again.


I have exactly same problem again, but this time i can't fix it.

Problem is that i'm doing an RCP app, so i have View.

In my View, "parent" is only a composite, i don't have anything else at 
start.

Same probleme : i want to expand some widget when i resize my view.

I set a grid layout to my "parent" composite, and also tried with a 
gridData with true to expand fields.


Then i have my widget (a tree or a table), with GridData and expand 
fileds at "true".

But it simply don't do anything.

Any idea ?

Julien

Julien a écrit :
> Thank you Manuel!
>
> I have juste delete my "super-composite" and just put my canvas and 
> other composite into the shell layout.
>
> VE asked me to create a layout and it generate that top-composite that i 
> didn't need and some way make the expand fail.
>
> Now it's work fine.
>
> :)
>
>
> Julien
>
> Manuel Selva a écrit :
> > Julien,
> >
> > Here is a snippet showing a to tell a composite to grab excess space
> >
> > // Creates display and shell
> >         Display display = new Display();
> >         Color white = display.getSystemColor (SWT.COLOR_WHITE);
> >         Color red = display.getSystemColor (SWT.COLOR_RED);
> >         Shell shell = new Shell(display);
> >         shell.setSize(400, 200);
> >         shell.setText("Grab Excess Space");
> >         GridLayout shellLayout = new GridLayout();
> >         shellLayout.numColumns = 2;
> >         shell.setLayout(shellLayout);
> >                // Creates the left canvas (grabbing excess horizontal 
> > and vertical space)
> >         Canvas canvas = new Canvas(shell, SWT.NONE);
> >         canvas.setBackground(red);
> >         GridData canvasData = new GridData();
> >         canvasData.grabExcessHorizontalSpace = true;
> >         canvasData.grabExcessVerticalSpace = true;
> >         canvasData.horizontalAlignment = SWT.FILL;
> >         canvasData.verticalAlignment = SWT.FILL;
> >         canvas.setLayoutData(canvasData);
> >                // Creates the left canvas (grabbing excess horizontal 
> > and vertical space)
> >         Composite composite = new Composite(shell, SWT.NONE);
> >         composite.setBackground(white);
> >         GridData compositeData = new GridData();
> >         compositeData.horizontalAlignment = SWT.FILL;
> >         compositeData.verticalAlignment = SWT.FILL;
> >         composite.setLayoutData(compositeData);
> >                // Opens the shell and starts UI loop
> >         shell.open();
> >         while (!shell.isDisposed()) {
> >             if (!display.readAndDispatch())
> >                 display.sleep();
> >         }
> >                // Disposes allocated resources
> >         white.dispose();
> >         red.dispose();
> >         display.dispose();
> >
> > This simple example creates two composites inside a parent shell. Thsi 
> > parent has a GridLayout with two columns.
> >
> > The first composite, a canvas grabs excess horizontal and vertical 
> > space when the shell is resized. The second composite only grab 
> > vertical space. In this sample the second composite grabs vertical 
> > space since there is only one raw in the layout and its GridData 
> > object has the field verticalAlignement set to true.
> >
> > Hope this can help
> >
> > Manuel
> >
> > PS : here is a very good article on SWT layouts:
> >
> > http://www.eclipse.org/articles/Article-Understanding-Layouts/Understanding-Layouts.htm