Re: Positioning a menu?

• To: Scott McKay <SWM@stony-brook.scrc.symbolics.com>
• Subject: Re: Positioning a menu?
• From: Nichael Cramer <ncramer@BBN.COM>
• Date: Mon, 25 Oct 93 16:06:54 EDT
• Cc: ncramer@BBN.COM, clim@BBN.COM

>    Date: Mon, 25 Oct 1993 14:27 EDT
>    From:     Nichael Cramer <ncramer@BBN.COM>
>
>    CLIM 2.0-Beta/Allegro/On a Sparc
>
>    I need to position a pop-up window at a point (PX,PY) over a pane.  (I get
>    the window using WITH-MENU.)
>
>    The most useful function I can come up with is POSITION-SHEET-CAREFULLY.
>    However, this positions the menu-window relative to the upper-left corner
>    of the screen.  (This behavious is not affected by any of the obvious
>    things --e.g. by setting the ASSOCIATED-WINDOW when calling WITH-MENU).
>
>    (MOVE-SHEET and MOVE-AND-RESIZE sheet appear to only frob the
>    transformation of the menu window and not actually move the window itself.)
>
>    Alternatively, I could convert (PX,PY) into screen-coordinates.  But I
>    can't figure out a reasonable way to this.  (For example, I seem to get
>    identity transformations all the way up the sheet-parent tree.)
>
>This should work:
>
>Transform PX and PY by the CLIM:SHEET-DEVICE-TRANSFORMATION of the pane
>you want to position over to get the "screen" coordinates.  Then call
>POSITION-SHEET-CAREFULLY on the transformed PX and PY.
>
>    Suggestions?  (BTW I got this to work in 1.1.)
>
>    Thanks
>    Nichael

No dice. (Already tried this.)

The transformation returned by (CLIM:SHEET-DEVICE-TRANSFORMATION MY-PANE)
seems to be relative to the frame containing MY-PANE (i.e. not screen-
coordinates).

(If it's *supposed* to be the screen-coordinates, then this should be
considered a bug report.)

N

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