[wxMac 2.6.3] wxWindowMac::DoClientToScreen returns a point with a negative y

[Stefan Csomor]

Hi

the client coordinates are the coordinates relative to the client area, which in a mac notebook starts below the tabs, ie where the content is. You could add the GetClientAreaOrigin to get a window relative coordinate

HTH

Stefan 

> -----Original Message-----
> From: Laurent Carcone [mailto:laurent at w3.org] 
> Sent: Mittwoch, 23. August 2006 15:32
> To: wx-users at lists.wxwidgets.org
> Subject: [wxMac 2.6.3] wxWindowMac::DoClientToScreen returns 
> a point with a negative y
> 
> Hello,
> We currently use the 2.6.3 release for the web browser/editor 
> Amaya (http://www/w3.org/Amaya).
> We use a notebook control to manage multiple documents with 
> tabs and the event EVT_CONTEXT_MENU to raise a menu when a 
> user right-click on a tab. That works fine on Linux and 
> Windows but not on Mac OS X (10.3 and 10.4), the function 
> HitTest returns -1 as index for the tab in this case.
> We have the following instructions:
>    long flags    = 0;
>    int page_id   = 0;
>    wxPoint point = event.GetPosition();
>    page_id   = HitTest(ScreenToClient(point), &flags);
> Debugging the code, I found that the problem cames from 
> ScreenToClient and more precisely from the function 
> wxWindowMac::DoClientToScreen that calculates a point with a 
> negative y. If I let the x unchanged and force the y (or 
> ignore the last instruction  if(y) *y -= origin.y; ), the 
> function HitTest returns the right tab index.
> 
> What would be the right way to fix that problem ?
> 
> Thanks in advance,
> -- 
>   Laurent Carcone	
>   carcone at w3.org              W3C/ERCIM
>   +33 (0)4 76 61 52 67        INRIA Rhône-Alpes, 655 Avenue 
> de l'Europe
>                               38334 Saint Ismier Cedex - France
> 
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