how to get handle on main window?

[Bill van Melle <bi...@gmail.com>]

Is there a way to get a handle on the top-level window that started an app?
 E.g., deep in my application somewhere I want to open a dialog, and have a
way to pass it the proper window argument.

(Yes, I could save it at startup as a static in my top-level window class.
 Just wondering if there was a more official way.)

Re: how to get handle on main window?

[Greg Brown <gk...@verizon.net>]

> 1.  That returns a java.awt.Window, not org.apache.pivot.wtk.Window, so is not suitable for passing to Sheet#open.  I guess I asked the question wrong -- I want a handle on the org.apache.pivot.wtk.Window that I opened at startup.  Or does that make sense?  The whole hosting-window thing I still find a bit unnatural.  I guess I could do getDisplay().get(0) and cast it to a Window.

You can call Component#getWindow() to get the top-level Pivot window.

> 2.  What if I'm not inside the code of a pivot component when I want access to the top-level window?

You'll either need to maintain a reference to the window somewhere, or maintain a reference to a component that is attached to the window.

G

Re: how to get handle on main window?

[Bill van Melle <bi...@gmail.com>]

1.  That returns a java.awt.Window, not org.apache.pivot.wtk.Window, so is
not suitable for passing to Sheet#open.  I guess I asked the question wrong
-- I want a handle on the org.apache.pivot.wtk.Window that I opened at
startup.  Or does that make sense?  The whole hosting-window thing I still
find a bit unnatural.  I guess I could do getDisplay().get(0) and cast it to
a Window.

2.  What if I'm not inside the code of a pivot component when I want access
to the top-level window?

Re: how to get handle on main window?

[Greg Brown <gk...@verizon.net>]

There is. You can call component.getDisplay().getHostWindow(). That will return the AWT host frame.

On Dec 17, 2010, at 8:46 PM, Bill van Melle wrote:

> Is there a way to get a handle on the top-level window that started an app?  E.g., deep in my application somewhere I want to open a dialog, and have a way to pass it the proper window argument.
> 
> (Yes, I could save it at startup as a static in my top-level window class.  Just wondering if there was a more official way.)