Re: Question on GSDrawingFunctions

[Fred Kiefer]

Fred Kiefer wrote:
> Adam Fedor wrote:
> > On Sunday, February 1, 2004, at 04:43 AM, Fred Kiefer wrote:
> > > Up to now my understanding, based on the names of the functions, was 
> > > that there used to be a series going from light to dark:
> > > NSDrawWhiteBezel
> > > NSDrawLightBezel
> > > NSDrawGrayBezel
> > > NSDrawDarkBezel
> >
> > No, I'm pretty sure that NSDrawLightBezel and NSDrawDarkBezel are the 
> > color-configurable replacements for NSDrawWhiteBezel and 
> > NSDrawGreyBezel, respectively. They should be equivalent (except for 
> > drawing the inside of the rect) when using the default colors.
> If nobody knows for sure, why don't we just check? I have attached a 
> small application that will draw all the different bezel versions and if 
> somebody with an OpenStep or Cocoa system runs this and sends back a 
> screenshot of the resulting window we should know. If the Light and Dark 
> variants are sensitive to defult colour settings they need of course 
> tests with different values in the system colour list.

Based on Cocoa screen shot I was able to implement these four functions 
to give better results (only NSDrawGrayBezel was already correct). The 
difference for existing GNUstep applicaitons should be minimal as only 
NSDrawWhiteBezel gets used and here just two pixels changed.

More interesting is the effect this should have on the new drawing 
engine code, which in the long run should replace all the calls to these 
(and the other) functions. Here I would like to have similar drawing 
behaviour for the methods with the same name as the drawing functions. 
The only actual difference should be, that colours get used from the 
system colour list, instead of hard coded. This may result in the need 
for additional drawing methods, as the current implementation of 
drawDarkBezel:: and drawLightBezel:: differ from the functions. Or these 
implementations may be off a bit, so we would just need to correct them.

Again only a screen shot, of what we want to achive, may clear the case.