Re: Lazy initialisation of grid

Thread: Re: Lazy initialisation of grid

United States 2007-08-08 12:58:30

After investigating it seems you've found a bug. Row headers and SWT.VIRTUAL have issues. I've entered a new bugzilla issue for it:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=199297

I've implemented a fix (that may be only temporary but should be good for your scenario). There is more info in the bug. The fix will be included in tonight's nightly build.  If you download that tomorrow you should be ok. Let me know.

Regards,
-Chris

From:	"Jonathan Alvarsson" <jonathan.alvarssongmail.com>
To:	"Nebula Dev" <nebula-deveclipse.org>
Date:	08/08/2007 12:09 PM
Subject:	Re: [nebula-dev] Lazy initialisation of grid

On 8/8/07, Christopher J Gross <us.ibm.com>chris.gross

us.ibm.com> wrote:

You need to call setItemCount. Tell the Grid how many items you want.

Regards,
-Chris

Okey so this is how it looks now.

It still don't call handleEvent() and hence all the cells are empty... :(

import org.eclipse.nebula.widgets.grid.Grid;
import org.eclipse.nebula.widgets.grid.GridColumn ;
import org.eclipse.nebula.widgets.grid.GridItem;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout ;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class VirtualGridWidget {
public static void main(String... args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
 
Grid grid = new Grid( shell, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL | SWT.VIRTUAL | SWT.MULTI );
grid.setHeaderVisible(true);
grid.setRowHeaderVisible(true);
grid.setCellSelectionEnabled(true);

grid.setItemHeight(20);
grid.setItemCount(10);
for (int i = 0; i < 10; i++) {

GridColumn column = new GridColumn(grid, SWT.NONE);
column.setText(i + "");
column.setWidth(40);
}

grid.addListener( SWT.SetData, new Listener() {
public void handleEvent(Event event) {
System.out.println("handleEvent()");
GridItem item = (GridItem)event.item;
for (int i = 0; i < 10; i++) {
item.setText(i, i + "");
item.setHeaderText( ('a'+i) + "" );
}
}
} );

shell.setSize(500, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}_______________________________________________ nebula-dev mailing list nebula-deveclipse.org https://dev.eclipse.org/mailman/listinfo/nebula-dev

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