[news.eclipse.tools] Re: Hiding a Combo Box

["Carolyn MacLeod" <Carolyn_MacLeod@xxxxxxx>]

This looks like it may be a bug in the Windows SWT implementation of Combo.

I believe the following code shows the error if the button (the "other control") is given focus before the shell is opened.

The suggested work-around is to set focus to the other control *after* the shell has been opened.

I will open a PR to investigate further.

 

Carolyn

 

import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.layout.*;
public class ComboNoFocusTest {
    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setLayout(new RowLayout());
        shell.setText("Combo No Focus Test");

        String items[] = {"one", "two", "three"};
        Combo combo = new Combo(shell, SWT.SINGLE | SWT.BORDER);
        combo.setItems(items);
        combo.setText(items[0]);

        Button button = new Button(shell, SWT.PUSH);
        button.setText("Button");
        //button.setFocus();  // setting focus here shows bug

        shell.pack();
        shell.open();
        //button.setFocus();  // setting focus here works ok

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) display.sleep();
        }
    }
}

 

"David Insel" <deinsel@xxxxxxxxxx> wrote in message news:9kpept$okr$1@xxxxxxxxxxxxx...

> 
I am trying to make a new Combo by using 
> "new 
Combo(containerGroup,SWT.SINGLE|SWT.BORDER)" but the problem is I do
> not 
want this combo box highlighted after it is created ( I am already
> 
changing the focus to another control on the canvas).  The only way that 
I
> have figured out how to do this is to use the style bit SWT.READ_ONLY 
but
> I do not want my combo box to be read only.  I have to set the 
item and
> then myComboBox.select(0); (So I can have a default String 
displayed). 
> Will Combo ever support the style bit noFocus?
> 
> Can anyone help me out or recommend a work around?
> 
> 
Please E-mail me...  
> 
> -Dave
>