[news.eclipse.platform.swt] Re: Checkbox appears when resizing table on

["Grant Gayed" <grant_gayed@xxxxxxxxxx>]

This looks like a bug so I've logged
https://bugs.eclipse.org/bugs/show_bug.cgi?id=232379 .

As Tom said, if you need checkboxes in the first column then creating your
Table with style SWT.CHECK is the way to go.  I don't know of a workaround
to suggest that would avoid this bug while preserving your current approach.

Grant


"Srdan Bejakovic" <sbejakovic@xxxxxxxxx> wrote in message
news:g0hh32$gls$1@xxxxxxxxxxxxxxxxxxxx
> Grant Gayed wrote:
> > I think it will be difficult to know what's happening without a snippet
that
> > shows the problem.  Are you able to provide one (ideal snippet template:
> > http://www.eclipse.org/swt/faq.php )?
> >
> > Grant
> >
> >
> > "Srdan Bejakovic" <sbejakovic@xxxxxxxxx> wrote in message
> > news:g0h3sl$k37$1@xxxxxxxxxxxxxxxxxxxx
> >> I created a table with columns of checkboxes, combos and other
controls.
> >> The checkboxes are in the first column. When the table is resized on a
> >> Mac, an additional checkbox appears over the column header; this
doesn't
> >> happen on Windows. I don't know if it's relevant, but the table is also
> >> virtual. Any ideas about what can be done about this problem?
> >
> >
>
> I've attached a snippet that reproduces the problem on Mac. The table
> starts out fine, as it's expanded, a checkbox appears, and as it becomes
> larger the checkbox once again disappears.
>
>
>


----------------------------------------------------------------------------
----


> package sandbox;
>
> import org.eclipse.swt.SWT;
> import org.eclipse.swt.custom.TableEditor;
> import org.eclipse.swt.layout.GridData;
> import org.eclipse.swt.layout.GridLayout;
> import org.eclipse.swt.widgets.Button;
> import org.eclipse.swt.widgets.Display;
> import org.eclipse.swt.widgets.Event;
> import org.eclipse.swt.widgets.Listener;
> import org.eclipse.swt.widgets.Shell;
> import org.eclipse.swt.widgets.Table;
> import org.eclipse.swt.widgets.TableColumn;
> import org.eclipse.swt.widgets.TableItem;
>
> public class MacTableSnippet {
> public static void main (String [] args) {
>     Display display = new Display ();
>     Shell shell = new Shell (display);
>     shell.setLayout(new GridLayout());
>
> final Table table = new Table(shell, SWT.VIRTUAL | SWT.HIDE_SELECTION |
SWT.BORDER);
> table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
> table.setLinesVisible(true);
> table.setHeaderVisible(true);
> table.setSize(200, 200);
>     table.setItemCount(50);
>
>     final TableColumn newColumnTableColumn = new TableColumn(table,
SWT.NONE);
> newColumnTableColumn.setWidth(50);
> newColumnTableColumn.setText("Select");
>
> table.addListener(SWT.SetData, new Listener() {
> public void handleEvent(Event event) {
> TableItem item = (TableItem)event.item;
> TableEditor editor = new TableEditor(table);
> final Button button = new Button(table, SWT.CHECK);
> button.setSelection(true);
> button.pack();
> editor.minimumWidth = button.getSize().x;
> editor.horizontalAlignment = SWT.LEFT;
> editor.setEditor(button, item, 0);
> }
> });
>
>     shell.open ();
>     while (!shell.isDisposed ()) {
>         if (!display.readAndDispatch ()) display.sleep ();
>     }
>     display.dispose ();
> }
> }
>