Prune duplicated face names. Makes the GTK+ font selector look a bit saner

2008-05-27  Tor Lillqvist  <tml@novell.com>

	* pango/pangowin32-fontmap.c (pango_win32_family_list_faces):
	Prune duplicated face names. Makes the GTK+ font selector look a
	bit saner for the "sans", "serif" and "monospace" standard pseudo
	font families with just one instance of each style.

	That we get duplicated styles in the first place is because of the
	magic code snippet in pango_win32_insert_font() that sets up the
	list of faces for the standard pseudo font families. I don't like
	that code but without it these families wouldn't currently show up
	in the font selector at all.

	A problem is still that the magic code blindly adds all random
	fonts that claim to be FF_ROMAN to the list of faces for the
	"serif" family, etc. I think it would be preferrable to do it only
	for well-known sensible fonts. That would be those that are listed
	in builtin_aliases in pango-utils.c, I guess.


svn path=/trunk/; revision=2638

2 files changed, 56 insertions, 8 deletions

diff --git a/ChangeLog b/ChangeLog
index efdc331b..264cbcc3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,22 @@
+2008-05-27  Tor Lillqvist  <tml@novell.com>
+
+	* pango/pangowin32-fontmap.c (pango_win32_family_list_faces):
+	Prune duplicated face names. Makes the GTK+ font selector look a
+	bit saner for the "sans", "serif" and "monospace" standard pseudo
+	font families with just one instance of each style.
+
+	That we get duplicated styles in the first place is because of the
+	magic code snippet in pango_win32_insert_font() that sets up the
+	list of faces for the standard pseudo font families. I don't like
+	that code but without it these families wouldn't currently show up
+	in the font selector at all.
+
+	A problem is still that the magic code blindly adds all random
+	fonts that claim to be FF_ROMAN to the list of faces for the
+	"serif" family, etc. I think it would be preferrable to do it only
+	for well-known sensible fonts. That would be those that are listed
+	in builtin_aliases in pango-utils.c, I guess.
+
 2008-05-26  Tor Lillqvist  <tml@novell.com>
 
 	* pango/pangowin32-private.h
diff --git a/pango/pangowin32-fontmap.c b/pango/pangowin32-fontmap.c
index cff43126..3ee1d1d1 100644
--- a/pango/pangowin32-fontmap.c
+++ b/pango/pangowin32-fontmap.c
@@ -357,22 +357,51 @@ pango_win32_family_list_faces (PangoFontFamily  *family,
 			       int              *n_faces)
 {
   PangoWin32Family *win32family = PANGO_WIN32_FAMILY (family);
+  GSList *p;
+  int n;
+
+  p = win32family->faces;
+  n = 0;
+  while (p)
+    {
+      GSList *q;
+      q = win32family->faces;
+      while (q != p)
+	{
+	  if (strcmp (pango_win32_face_get_face_name ((PangoFontFace *) q->data),
+		      pango_win32_face_get_face_name ((PangoFontFace *) p->data)) == 0)
+	    break;
+	  q = q->next;
+	}
+      if (q == p)
+	n++;
+      p = p->next;
+    }
 
-  *n_faces = g_slist_length (win32family->faces);
   if (faces)
     {
-      GSList *tmp_list;
-      int i = 0;
+      int i;
 
-      *faces = g_new (PangoFontFace *, *n_faces);
+      *faces = g_new (PangoFontFace *, n);
 
-      tmp_list = win32family->faces;
-      while (tmp_list)
+      p = win32family->faces;
+      i = 0;
+      while (p)
 	{
-	  (*faces)[i++] = tmp_list->data;
-	  tmp_list = tmp_list->next;
+	  int j;
+	  for (j = 0; j < i; j++)
+	    {
+	      if (strcmp (pango_win32_face_get_face_name ((*faces)[j]),
+			  pango_win32_face_get_face_name ((PangoFontFace *) p->data)) == 0)
+		break;
+	    }
+	  if (j == i)
+	    (*faces)[i++] = p->data;
+	  p = p->next;
 	}
     }
+  if (n_faces)
+    *n_faces = n;
 }
 
 static const char *