Re: GSCUPS and GNUstep Printing

[Chad Hardin]

I'm a bit confused about something in the PageLayout GORM Panel.  In 
there there is a "Layout" option for selecting how many pages to print 
per sheet of paper.  I think this option is best kept in the actual 
print panel.  In fact, it already is in tha panel.  Also, I can't think 
of a single app which is actually using the NSPageLayout class and 
panel, why is that?

Another thing, I think my modifications to the printing system will 
have to make changes to NSPageLayout too.  This is because each printer 
has different page sizes, in order to get the page sizes you have to 
get the printers, the PPD for that printer, etc., etc.

Keep in mind that the changes I will be making will also mean different 
GORMs for each type.  I guess that means there will be things like  
gnustep-gui/Panels/Language.lproj/GSCUPSPageLayout.gorm and 
GSLPRPageLayout.gorm.

I'm venturing into somewhat new territory here, so I'm thinking the 
very first patch I submit will *not* have any CUPS stuff in it at all. 
Instead it will have this printing backend type thing with the LPR 
printing backend.  When that is working I will then work on the CUPS 
addition.  That seems much more sane to me.

The CUPS backend will be much more complex than the current GNUstep 
printing stuff.  It will have all kinds of user-configurable options 
like resolution, color/monochrome, saving of user-defined defaults, 
etc.  Anyone who has interacted with OS X printing system will be 
familiar with what I'm talking about here.  Pretty nifty stuff.

I remember reading that people who contribute code to official GNU 
projects need to sign legal documents.  Should I start on that now so 
when my patches are done all is good.  Or will that not apply to me?

Chad


On Jun 11, 2004, at 12:46 PM, Adam Fedor wrote:

> On Jun 11, 2004, at 4:37 PM, Chad Hardin wrote:
> > > Probably these should go in a separate subdirectory under Source.
> > Ok, under GSCUPS, I suppose?
> Perhaps 'Printing' or something generic that describes what the files 
> do.
> > 	//find out what we are actually going to allocate, is it a 
> > GSLPRPrinter or a GSCUPSPrinter (maybe even a GSWindowsPrinter?)
> >         userDefault = //whatever the default is
> >
> >         if( [userDefault isEqualToString: @"GSCUPS"])
> >         {
> >                 return [GSCUPSPrinter alloc];
> >         }
> >
> >         if( [userDefault isEqualToString: @"GSLPR"])
> >         {
> >                 return [GSCUPSLPR alloc];
> >         }
> Sure, something like that is fine, although both NSPrinInfo and 
> NSPrintPanel are shared, so you probably only need to change the 
> shared factory method, plus you need to check if you can even use 
> GSCupsPrinter even if the default requests it. Also you should put 
> this in allocWithZone: since alloc just calls that.
>
>
>
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