[pango] Keep PangoFontmap derivable

[Matthias Clasen <matthiasc src gnome org>]

commit 78eb39adf81e2c0de43ae7e3e33ca13cea46330a
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jul 7 11:25:42 2019 -0400

    Keep PangoFontmap derivable
    
    This functionality is used in PackageKit.

 pango/pango-fontmap-private.h | 91 -------------------------------------------
 pango/pango-fontmap.h         | 71 +++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+), 91 deletions(-)
---
diff --git a/pango/pango-fontmap-private.h b/pango/pango-fontmap-private.h
index 1bece87d..be06bd8f 100644
--- a/pango/pango-fontmap-private.h
+++ b/pango/pango-fontmap-private.h
@@ -29,97 +29,6 @@
 G_BEGIN_DECLS
 
 
-/**
- * PANGO_FONT_MAP_CLASS:
- * @klass: a #GObject.
- *
- * Casts a #GObject to a #PangoFontMapClass.
- */
-/**
- * PANGO_IS_FONT_MAP_CLASS:
- * @klass: a #GObject.
- *
- * Returns: %TRUE if @klass is a subtype of #PangoFontMapClass.
- */
-/**
- * PANGO_FONT_MAP_GET_CLASS:
- * @obj: a #PangoFontMap.
- *
- * Returns: class of @obj
- */
-#define PANGO_FONT_MAP_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_MAP, 
PangoFontMapClass))
-#define PANGO_IS_FONT_MAP_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_MAP))
-#define PANGO_FONT_MAP_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_MAP, 
PangoFontMapClass))
-
-typedef struct _PangoFontMapClass PangoFontMapClass;
-
-/**
- * PangoFontMap:
- *
- * The #PangoFontMap represents the set of fonts available for a
- * particular rendering system. This is a virtual object with
- * implementations being specific to particular rendering systems.  To
- * create an implementation of a #PangoFontMap, the rendering-system
- * specific code should allocate a larger structure that contains a nested
- * #PangoFontMap, fill in the <structfield>klass</structfield> member of the nested #PangoFontMap with a
- * pointer to a appropriate #PangoFontMapClass, then call
- * pango_font_map_init() on the structure.
- *
- * The #PangoFontMap structure contains one member which the implementation
- * fills in.
- */
-struct _PangoFontMap
-{
-  GObject parent_instance;
-};
-
-/**
- * PangoFontMapClass:
- * @parent_class: parent #GObjectClass.
- * @load_font: a function to load a font with a given description. See
- * pango_font_map_load_font().
- * @list_families: A function to list available font families. See
- * pango_font_map_list_families().
- * @load_fontset: a function to load a fontset with a given given description
- * suitable for a particular language. See pango_font_map_load_fontset().
- * @shape_engine_type: the type of rendering-system-dependent engines that
- * can handle fonts of this fonts loaded with this fontmap.
- * @get_serial: a function to get the serial number of the fontmap.
- * See pango_font_map_get_serial().
- * @changed: See pango_font_map_changed()
- *
- * The #PangoFontMapClass structure holds the virtual functions for
- * a particular #PangoFontMap implementation.
- */
-struct _PangoFontMapClass
-{
-  GObjectClass parent_class;
-
-  /*< public >*/
-
-  PangoFont *   (*load_font)     (PangoFontMap               *fontmap,
-                                 PangoContext               *context,
-                                 const PangoFontDescription *desc);
-  void          (*list_families) (PangoFontMap               *fontmap,
-                                 PangoFontFamily          ***families,
-                                 int                        *n_families);
-  PangoFontset *(*load_fontset)  (PangoFontMap               *fontmap,
-                                 PangoContext               *context,
-                                 const PangoFontDescription *desc,
-                                 PangoLanguage              *language);
-
-  const char     *shape_engine_type;
-
-  guint         (*get_serial)    (PangoFontMap               *fontmap);
-  void          (*changed)       (PangoFontMap               *fontmap);
-
-  /*< private >*/
-
-  /* Padding for future expansion */
-  void (*_pango_reserved1) (void);
-  void (*_pango_reserved2) (void);
-};
-
 PANGO_DEPRECATED_IN_1_38
 const char   *pango_font_map_get_shape_engine_type (PangoFontMap *fontmap);
 
diff --git a/pango/pango-fontmap.h b/pango/pango-fontmap.h
index 036de2df..b6206f1d 100644
--- a/pango/pango-fontmap.h
+++ b/pango/pango-fontmap.h
@@ -47,9 +47,80 @@ G_BEGIN_DECLS
 #define PANGO_TYPE_FONT_MAP              (pango_font_map_get_type ())
 #define PANGO_FONT_MAP(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_FONT_MAP, 
PangoFontMap))
 #define PANGO_IS_FONT_MAP(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_FONT_MAP))
+#define PANGO_FONT_MAP_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_MAP, 
PangoFontMapClass))
+#define PANGO_IS_FONT_MAP_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_MAP))
+#define PANGO_FONT_MAP_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_MAP, 
PangoFontMapClass))
 
+typedef struct _PangoFontMapClass PangoFontMapClass;
 typedef struct _PangoContext PangoContext;
 
+/**
+ * PangoFontMap:
+ *
+ * The #PangoFontMap represents the set of fonts available for a
+ * particular rendering system. This is a virtual object with
+ * implementations being specific to particular rendering systems.  To
+ * create an implementation of a #PangoFontMap, the rendering-system
+ * specific code should allocate a larger structure that contains a nested
+ * #PangoFontMap, fill in the <structfield>klass</structfield> member of the nested #PangoFontMap with a
+ * pointer to a appropriate #PangoFontMapClass, then call
+ * pango_font_map_init() on the structure.
+ *
+ * The #PangoFontMap structure contains one member which the implementation
+ * fills in.
+ */
+struct _PangoFontMap
+{
+  GObject parent_instance;
+};
+
+/**
+ * PangoFontMapClass:
+ * @parent_class: parent #GObjectClass.
+ * @load_font: a function to load a font with a given description. See
+ * pango_font_map_load_font().
+ * @list_families: A function to list available font families. See
+ * pango_font_map_list_families().
+ * @load_fontset: a function to load a fontset with a given given description
+ * suitable for a particular language. See pango_font_map_load_fontset().
+ * @shape_engine_type: the type of rendering-system-dependent engines that
+ * can handle fonts of this fonts loaded with this fontmap.
+ * @get_serial: a function to get the serial number of the fontmap.
+ * See pango_font_map_get_serial().
+ * @changed: See pango_font_map_changed()
+ *
+ * The #PangoFontMapClass structure holds the virtual functions for
+ * a particular #PangoFontMap implementation.
+ */
+struct _PangoFontMapClass
+{
+  GObjectClass parent_class;
+
+  /*< public >*/
+
+  PangoFont *   (*load_font)     (PangoFontMap               *fontmap,
+                                  PangoContext               *context,
+                                  const PangoFontDescription *desc);
+  void          (*list_families) (PangoFontMap               *fontmap,
+                                  PangoFontFamily          ***families,
+                                  int                        *n_families);
+  PangoFontset *(*load_fontset)  (PangoFontMap               *fontmap,
+                                  PangoContext               *context,
+                                  const PangoFontDescription *desc,
+                                  PangoLanguage              *language);
+
+  const char     *shape_engine_type;
+
+  guint         (*get_serial)    (PangoFontMap               *fontmap);
+  void          (*changed)       (PangoFontMap               *fontmap);
+
+  /*< private >*/
+
+  /* Padding for future expansion */
+  void (*_pango_reserved1) (void);
+  void (*_pango_reserved2) (void);
+};
+
 PANGO_AVAILABLE_IN_ALL
 GType         pango_font_map_get_type       (void) G_GNUC_CONST;
 PANGO_AVAILABLE_IN_1_22