Bug 345411

Description Markus Schorn 2011-05-11 08:38:47 EDT

On Windows 7, when adding a listener for the event type SWT.MeasureItem, the method TableColumn.pack() for all but the first column makes the column too small by one pixel. The column shows 'the...' instead of 'there'. 

I can reproduce the problem with the code below compiled with org.eclipse.swt.win32.win32.x86_3.6.2.v3659c.jar or
org.eclipse.swt.win32.win32.x86_3.7.0.v3730b.jar

I do not see the problem on Windows XP. Also, the problem goes away when removing the listener.


Sample code:
============
public class Main {
    public static void main(String[] args) {
        try {
            Display display = new Display();
            Shell shell = new Shell(display);
            shell.setLayout(new FillLayout());
            final Table table = new Table(shell, SWT.NONE);
            table.setHeaderVisible(true);
            table.addListener(SWT.MeasureItem, new Listener() {
                @Override
                public void handleEvent(Event event) {
                }
            });
            TableColumn column1 = new TableColumn(table, SWT.NONE);
            TableColumn column2 = new TableColumn(table, SWT.NONE);
            for (int i = 0; i < 10; i++) {
                TableItem item = new TableItem(table, SWT.NONE);
                item.setText(new String[] {"hi", "there"});
            }
            column1.pack();
            column2.pack();
            shell.setSize(300, 300);
            shell.open();
            while (!shell.isDisposed()) {
                if (!display.readAndDispatch()) display.sleep();
            }
            display.dispose();
        } catch (Throwable th) {
            System.out.println(th);
        }
    }
}