[news.eclipse.platform.swt] Re: SWT and UI Thread block

[Achim Lörke <Achim.Loerke@xxxxxxxxx>]

Mark,

Wouldn't Display.syncExec() work? This wouldn't stop the UI execution
but stop your thread until the Runnable is finished.

Achim

On Thu, 12 Jun 2008 17:55:14 -0400, Mark Ingerman
<mingerman@xxxxxxxxxxxxx> wrote:

>I have a problem where I want the current UI execution to stop, and perform
>some other ui (not a dialog box), and wait until that task is finished
>before returning to the previous spot.
>
>I have code that is running inside GEF that wants to put up a menu when the
>end connection (mouse down) event is run.  I tried the following trick; it
>works on the MAC and under windows, but not under Linux.  I wonder if there
>is a better way.
>
>Here is the code:
>
>  do some code....
>
>  Control c = Display.getCurrent().getFocusControl();
>  if (c != null) {
>    Menu old = c.getMenu();
>    MenuManager mm = new MenuManager();
>    for (String s : cats) {
>
>      mm.add(new _Action(s, isSource));
>
>    }
>
>    final Menu m = mm.createContextMenu(c);
>    c.setMenu(m);
>    m.setVisible(true);
>    c.getDisplay().readAndDispatch();
>    c.setMenu(old);
>
> }
>
>
> finish the code....
>
>
>With the c.getDisplay().readAndDispatch() code in, the menu comes up, and
>until either one of the menu items are selected or ESC is pressed, the
>c.setMenu(old) statement and the following statements don't execute.
>
>Under Linux, however, it falls through, processes the rest of the event, and
>then allows for the firing of the menu.
>
>Is there a better way to do this?

Achim
-- 
Achim Lörke

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