[pango/coretext-font-describe: 1/2] coretext: Set size on font descriptions

[Matthias Clasen <matthiasc src gnome org>]

commit a5e976d0f963bf4519b4ce3d64346d9f6e04ec64
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Aug 30 16:28:43 2021 -0400

    coretext: Set size on font descriptions
    
    Set a size on the font description returned by
    pango_font_describe(). Otherwise, scaling it
    doesn't work.
    
    Fixes: #610

 pango/pangocoretext-fontmap.c | 8 ++++++++
 pango/pangocoretext.c         | 7 +++++--
 2 files changed, 13 insertions(+), 2 deletions(-)
---
diff --git a/pango/pangocoretext-fontmap.c b/pango/pangocoretext-fontmap.c
index 0980303b..c6ee1a73 100644
--- a/pango/pangocoretext-fontmap.c
+++ b/pango/pangocoretext-fontmap.c
@@ -407,6 +407,9 @@ _pango_core_text_font_description_from_ct_font_descriptor (CTFontDescriptorRef d
   char *family_name;
   char *style_name;
   PangoFontDescription *font_desc;
+  int size;
+  CFNumberRef cf_number;
+  CGFloat pointsize;
 
   font_desc = pango_font_description_new ();
 
@@ -419,6 +422,11 @@ _pango_core_text_font_description_from_ct_font_descriptor (CTFontDescriptorRef d
   pango_font_description_set_family (font_desc, family_name);
   g_free (family_name);
 
+  /* Size (if we have one) */
+  cf_number = CTFontDescriptorCopyAttribute (desc, kCTFontSizeAttribute);
+  if (cf_number != NULL && CFNumberGetValue (cf_number, kCFNumberCGFloatType, &pointsize))
+    pango_font_description_set_size (font_desc, (pointsize / (96./72.)) * 1024);
+
   /* Weight */
   pango_font_description_set_weight (font_desc,
                                      ct_font_descriptor_get_weight (desc));
diff --git a/pango/pangocoretext.c b/pango/pangocoretext.c
index ccb3f674..f74d8c66 100644
--- a/pango/pangocoretext.c
+++ b/pango/pangocoretext.c
@@ -64,10 +64,13 @@ pango_core_text_font_describe (PangoFont *font)
   PangoCoreTextFont *ctfont = (PangoCoreTextFont *)font;
   PangoCoreTextFontPrivate *priv = ctfont->priv;
   CTFontDescriptorRef ctfontdesc;
+  PangoFontDescription *desc;
 
-  ctfontdesc = pango_core_text_font_key_get_ctfontdescriptor (priv->key);
+  ctfontdesc = CTFontCopyFontDescriptor (priv->font_ref);
+  desc = _pango_core_text_font_description_from_ct_font_descriptor (ctfontdesc);
+  CTRelease (ctfontdesc);
 
-  return _pango_core_text_font_description_from_ct_font_descriptor (ctfontdesc);
+  return desc;
 }
 
 static PangoCoverage *