Re: Windows and content frame

[Fred Kiefer]

On 18.07.2011 17:06, Riccardo Mottola wrote:
> Hi,
>
> I ported GMastermind to the Mac. It generates its windows and palettes
> from code which is 100% shared between the gnustep and cocoa version.
>
> Look:
>
> http://3.bp.blogspot.com/-HQccn4C0TC8/TiNyME7hS2I/AAAAAAAAAOc/9LRGE_2tiLU/s1600/GMastermind_Panther.jpg
>
>
> http://gap.nongnu.org/gmastermind/gmastermind_01_obsd.png
>
> Do you see that on the mac there is a white space below the tile bar and
> the window content? It is especially evident in the "Palette" window.
>
> I fear we are doing "good" while we should not.
>
> I tried enabling and disabling native window decorations (being
> suspicious that the white space appears to be the window title bar
> height) but no change.
>
>
> Riccardo


I think the problem is in the way we create the window:

    frame = [NSWindow frameRectForContentRect:[view frame]
                      styleMask:m];
     window = [[NSWindow alloc] initWithContentRect:frame
                                 styleMask:m                    
                                 backing: NSBackingStoreBuffered
                                defer:NO];

This adds the window border twice! In the window creation we should use 
[view frame] instead of frame. The frame is later used to set the min 
and max size of the window. We could get that value from the window 
itself there, which should be more accurate.
The interesting question is why GNUstep displays the window as expected. 
Most likely the size restrictions are the reason for that.

Fred