[news.eclipse.platform.swt] Re: ScrolledComposite problem

[John Carroll <jcarroll@xxxxxxxxxx>]

Thanks Leo,

that change you suggested worked great.

John.
> Try adding the line...
>
> aScrolledComposite.setMinSize(aInnerComposite.computeSize(SWT.DEFAULT, 
> SWT.DEFAULT));
>
> right before your shell.open().
>
>  - Leo
>
> John Carroll wrote:
> > Hello,
> >
> > I am trying to display a number of Labels within 3 columns in a 
> > ScrolledComposite but I cannot get the scrolling to work, here is my 
> > code :
> >
> > public static void main(String[] args)
> >     {
> >
> >         Display display = new Display ();
> >         Shell shell = new Shell (display);
> >         shell.setLayout(new GridLayout());
> >
> >         ScrolledComposite aScrolledComposite = new ScrolledComposite(
> >                 shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
> >
> > aScrolledComposite.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_CYAN)); 
> >
> >         aScrolledComposite.setExpandHorizontal(true);
> >         aScrolledComposite.setExpandVertical(true);
> >         aScrolledComposite.setAlwaysShowScrollBars(true);
> >         
> > aScrolledComposite.setBackground(shell.getDisplay().getSystemColor(
> >                 SWT.COLOR_WHITE));
> >         aScrolledComposite.setLayoutData(new GridData(GridData.FILL, 
> > GridData.FILL, true, true));
> >
> >         Composite aInnerComposite = new Composite(aScrolledComposite, 
> > SWT.NONE);
> >
> > aInnerComposite.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_YELLOW)); 
> >
> >         GridLayout gridLayout = new GridLayout();
> >         gridLayout.numColumns = 3;
> >         aInnerComposite.setLayout(gridLayout);
> >         aInnerComposite.setBackground(shell.getDisplay().getSystemColor(
> >                 SWT.COLOR_WHITE));
> >         aScrolledComposite.setContent(aInnerComposite);
> >
> >         final Label typeLabel = new Label(aInnerComposite, SWT.NONE);
> >         final GridData gd_typeLabel = new GridData(SWT.FILL, 
> > SWT.CENTER, true, false);
> >         typeLabel.setLayoutData(gd_typeLabel);
> >         typeLabel.setText("Type");
> >
> >         final Label nameLabel = new Label(aInnerComposite, SWT.NONE);
> >         nameLabel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, 
> > true, false));
> >         nameLabel.setText("Name");
> >
> >         final Label textLabel = new Label(aInnerComposite, SWT.NONE);
> >         final GridData gd_textLabel = new GridData(SWT.LEFT, 
> > SWT.CENTER, true, false);
> >         textLabel.setLayoutData(gd_textLabel);
> >         textLabel.setText("Text");
> >
> >         for(int aI = 0;aI < 100;aI++)
> >         {
> >             AddLine(aInnerComposite, (aI+1));
> >         }
> >
> >
> >
> >         shell.open();
> >         while (!shell.isDisposed ()) {
> >             if (!display.readAndDispatch ()) display.sleep ();
> >         }
> >         display.dispose ();
> >     }
> >
> >     private static void AddLine(Composite aParent, int aCount)
> >     {
> >         final Label typeLabel = new Label(aParent, SWT.NONE);
> >         final GridData gd_typeLabel = new GridData(SWT.FILL, 
> > SWT.CENTER, true, false);
> >         typeLabel.setLayoutData(gd_typeLabel);
> >         typeLabel.setText("Type " + aCount);
> >
> >         final Label nameLabel = new Label(aParent, SWT.NONE);
> >         nameLabel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, 
> > true, false));
> >         nameLabel.setText("Name " + aCount);
> >
> >         final Label textLabel = new Label(aParent, SWT.NONE);
> >         final GridData gd_textLabel = new GridData(SWT.LEFT, 
> > SWT.CENTER, true, false);
> >         textLabel.setLayoutData(gd_textLabel);
> >         textLabel.setText("Text " + aCount);
> >     }
> >
> >
> >
> >
> > thanks for any help you can offer.
> >
> > John.