bug#3174: "italic" is underlined now (NS?)

[Adrian Robert <adrian.b.robert@gmail.com>]

On Jun 14, 2009, at 5:37 PM, David Reitter wrote:

> This seems to be the case though.  NSFontSlantTrait is 0.0.  It's  
> still in line with the documentation, even though nil would make  
> more sense...
> I suggest the patch below - this makes it work for me.

OK, but the behavior makes the way I set up ns_attribute_value()  
pretty much useless, so does the below work on your system?  (Sorry I  
have no Leopard to test.)

--- nsfont.m.~1.24.~	2009-06-08 07:08:19.000000000 +0300
+++ nsfont.m	2009-06-14 18:50:50.000000000 +0300
@@ -106,21 +106,15 @@ ns_get_family (Lisp_Object font_spec)
  }


-/* Return NSNumber or nil if attr is not set. */
-static NSNumber
-*ns_attribute_value (NSFontDescriptor *fdesc, NSString *trait)
-{
-    NSDictionary *tdict = [fdesc objectForKey: NSFontTraitsAttribute];
-    NSNumber *val = [tdict objectForKey: trait];
-    return val;
-}
-
-
-/* Return 0 if attr not set, else value (which might also be 0). */
+/* Return 0 if attr not set, else value (which might also be 0).
+   On Leopard 0 gets returned even on descriptors where the attribute
+   was never set, so there's no way to distinguish between unspecified
+   and set to not have.  Callers should assume 0 means unspecified. */
  static float
  ns_attribute_fvalue (NSFontDescriptor *fdesc, NSString *trait)
  {
-    NSNumber *val = ns_attribute_value (fdesc, trait);
+    NSDictionary *tdict = [fdesc objectForKey: NSFontTraitsAttribute];
+    NSNumber *val = [tdict objectForKey: trait];
      return val == nil ? 0.0 : [val floatValue];
  }

@@ -502,9 +496,7 @@ ns_findfonts (Lisp_Object font_spec, BOO

      /* Add synthItal member if needed. */
      family = [fdesc objectForKey: NSFontFamilyAttribute];
-    if (family != nil && !foundItal && XINT (Flength (list)) > 0
-	&& (ns_attribute_value (fdesc, NSFontSlantTrait) == nil
-	    || ns_has_attribute (fdesc, NSFontSlantTrait)))
+    if (family != nil && !foundItal && XINT (Flength (list)) > 0)
        {
  	NSFontDescriptor *sDesc = [[[NSFontDescriptor new]
  	    fontDescriptorWithSymbolicTraits: NSFontItalicTrait]