Re: Pango for iPhone

[Behdad Esfahbod <behdad behdad org>]

Hi Sajjad,

If you figure this out, please file a but against Pango such that I can commit 
this.

Thanks, and sorry that I can't help with the issues you raised,
behdad

On 07/04/2009 07:46 AM, Sajjad Naveed wrote:
> I'm trying to compile Pango for iPhone. I've already patched it to
> work with  CoreText instead of ATSUI. But there's still one more thing
> that needs to be taken care of i.e. Cocoa Framework. iPhone doesn't
> have Cocoa framework as such but what it does have is Foundation
> framework which offers many classes as Cocoa framework. After shifting
> from Cocoa to Foundation framework there are essentially only two
> places where Pango still needs to be patched:
>
> 1) In function 'pango_atsui_family_list_faces' in
> 'pangoatsui-fontmap.c', line # 173&  174
>
> NSFontManager *manager = [NSFontManager sharedFontManager];
> NSArray *members = [manager availableMembersOfFontFamily:[NSString
> stringWithUTF8String:real_family]];
>
> Now, Foundation framework doesn't have NSFontManager
>
> "http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSFontManager_Class/Reference/Reference.html";
>
> Instead, there's UIFont
>
> "http://developer.apple.com/IPhone/library/documentation/UIKit/Reference/UIFont_Class/index.html";
>
> I'm kind of stuck here as you can see (links above) although we can
> get fonts' names for a given family as required yet it's not evident
> how will we get the weights or traits of fonts to come up with
> equivalent method for 'availableMembersOfFontFamily'? Is that even
> required or we can set some standard values? Can we somehow make pango
> to get requied font with traits and weights from UIFont directly
> instead first getting the list of available fonts and then choosing
> from them (as UIFonts supports this)?
>
> 2) Masks... yes e.g. 'NSFixedPitchFontMask' as required by Pango are
> also declared in Cocoa. We can however, declare them ourselves like
>
> enum {
>     NSItalicFontMask = 0x00000001,
>     NSBoldFontMask = 0x00000002,
>     NSUnboldFontMask = 0x00000004,
>     NSNonStandardCharacterSetFontMask = 0x00000008,
>     NSNarrowFontMask = 0x00000010,
>     NSExpandedFontMask = 0x00000020,
>     NSCondensedFontMask = 0x00000040,
>     NSSmallCapsFontMask = 0x00000080,
>     NSPosterFontMask = 0x00000100,
>     NSCompressedFontMask = 0x00000200,
>     NSFixedPitchFontMask = 0x00000400,
>     NSUnitalicFontMask = 0x01000000
> };
>
> Will this work? It sure will compile...
>
> Any thoughts, pointers, suggestions, help on these two issues will be
> greatly appreciated..
>
> Thanks,
> Sajjad
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