Update to new Cairo font API.

2005-04-07  Owen Taylor  <otaylor@redhat.com>

        * pango/pangocairo-fcfont.c pango/pangocairo-win32font.c
        pango/pangocairo-render.c: Update to new Cairo font API.

        * pangpopangowin32.h pango/pangowin32-private.h pango/pangowin32.c
        pango/pangocairo-win32font.c modules/basic/basic-win32.c: Rename
        get_scale_factor() to get_metrics_factor() to match Cairo

8 files changed, 182 insertions, 108 deletions

diff --git a/pango/pangocairo-fcfont.c b/pango/pangocairo-fcfont.c
index 52da3a4a..19076cf8 100644
--- a/pango/pangocairo-fcfont.c
+++ b/pango/pangocairo-fcfont.c
@@ -46,9 +46,10 @@ struct _PangoCairoFcFont
 {
   PangoFcFont font;
 
-  cairo_font_t *cairo_font;
+  cairo_font_face_t *font_face;
+  cairo_scaled_font_t *scaled_font;
   cairo_matrix_t *font_matrix;
-  cairo_matrix_t *total_matrix;
+  cairo_matrix_t *ctm;
 };
 
 struct _PangoCairoFcFontClass
@@ -58,53 +59,92 @@ struct _PangoCairoFcFontClass
 
 GType pango_cairo_fc_font_get_type (void);
 
+static cairo_font_face_t *pango_cairo_fc_font_get_font_face (PangoCairoFont *font);
+
 /*******************************
  *       Utility functions     *
  *******************************/
 
-static cairo_font_t *
-pango_cairo_fc_font_get_cairo_font (PangoCairoFont *font)
+static cairo_font_face_t *
+pango_cairo_fc_font_get_font_face (PangoCairoFont *font)
 {
   PangoCairoFcFont *cffont = PANGO_CAIRO_FC_FONT (font);
   PangoFcFont *fcfont = PANGO_FC_FONT (cffont);
 
-  if (cffont->cairo_font == NULL)
+  if (!cffont->font_face)
+    {
+      cffont->font_face = cairo_ft_font_face_create_for_pattern (fcfont->font_pattern);
+      
+      /* Failure of the above should only occur for out of memory,
+       * we can't proceed at that point
+       */
+      if (!cffont->font_face)
+	g_error ("Unable create Cairo font name");
+    }
+  
+  return cffont->font_face;
+}
+
+static cairo_scaled_font_t *
+pango_cairo_fc_font_get_scaled_font (PangoCairoFont *font)
+{
+  PangoCairoFcFont *cffont = PANGO_CAIRO_FC_FONT (font);
+
+  if (!cffont->scaled_font)
     {
-      cffont->cairo_font = cairo_ft_font_create (fcfont->font_pattern, cffont->total_matrix);
+      cairo_font_face_t *font_face;
+
+      font_face = pango_cairo_fc_font_get_font_face (font);
+      cffont->scaled_font = cairo_scaled_font_create (font_face,
+						     cffont->font_matrix,
+						     cffont->ctm);
 
       /* Failure of the above should only occur for out of memory,
        * we can't proceed at that point
        */
-      if (!cffont->cairo_font)
+      if (!cffont->scaled_font)
 	g_error ("Unable create Cairo font");
     }
   
-  return cffont->cairo_font;
+  return cffont->scaled_font;
+}
+
+/********************************
+ *    Method implementations    *
+ ********************************/
+
+static void
+pango_cairo_fc_font_install (PangoCairoFont *font,
+			     cairo_t        *cr)
+{
+  PangoCairoFcFont *cffont = PANGO_CAIRO_FC_FONT (font);
+
+  cairo_set_font_face (cr,
+		       pango_cairo_fc_font_get_font_face (font));
+  cairo_transform_font (cr, cffont->font_matrix);
 }
 
 static void
 cairo_font_iface_init (PangoCairoFontIface *iface)
 {
-  iface->get_cairo_font = pango_cairo_fc_font_get_cairo_font;
+  iface->install = pango_cairo_fc_font_install;
 }
 
 G_DEFINE_TYPE_WITH_CODE (PangoCairoFcFont, pango_cairo_fc_font, PANGO_TYPE_FC_FONT,
     { G_IMPLEMENT_INTERFACE (PANGO_TYPE_CAIRO_FONT, cairo_font_iface_init) });
 
-/********************************
- *    Method implementations    *
- ********************************/
-
 static void
 pango_cairo_fc_font_finalize (GObject *object)
 {
   PangoCairoFcFont *cffont = PANGO_CAIRO_FC_FONT (object);
 
-  if (cffont->cairo_font)
-    cairo_font_destroy (cffont->cairo_font);
+  if (cffont->font_face)
+    cairo_font_face_destroy (cffont->font_face);
+  if (cffont->scaled_font)
+    cairo_scaled_font_destroy (cffont->scaled_font);
 
-  cairo_matrix_destroy (cffont->total_matrix);
   cairo_matrix_destroy (cffont->font_matrix);
+  cairo_matrix_destroy (cffont->ctm);
 
   G_OBJECT_CLASS (pango_cairo_fc_font_parent_class)->finalize (object);
 }
@@ -136,19 +176,18 @@ pango_cairo_fc_font_get_glyph_extents (PangoFont        *font,
 				       PangoRectangle   *logical_rect)
 {
   PangoCairoFcFont *cffont = PANGO_CAIRO_FC_FONT (font);
-  cairo_font_t *cairo_font;
+  cairo_scaled_font_t *scaled_font;
   cairo_text_extents_t extents;
   cairo_glyph_t cairo_glyph;
 
-  cairo_font = pango_cairo_fc_font_get_cairo_font (PANGO_CAIRO_FONT (font));
+  scaled_font = pango_cairo_fc_font_get_scaled_font (PANGO_CAIRO_FONT (font));
 
   cairo_glyph.index = glyph;
   cairo_glyph.x = 0;
   cairo_glyph.y = 0;
 
-  cairo_font_glyph_extents (cairo_font,
-			    cffont->font_matrix,
-			    &cairo_glyph, 1, &extents);
+  cairo_scaled_font_glyph_extents (scaled_font,
+				   &cairo_glyph, 1, &extents);
 
   if (ink_rect)
     {
@@ -174,13 +213,13 @@ pango_cairo_fc_font_get_glyph_extents (PangoFont        *font,
 static FT_Face
 pango_cairo_fc_font_lock_face (PangoFcFont *font)
 {
-  return cairo_ft_font_lock_face (pango_cairo_fc_font_get_cairo_font (PANGO_CAIRO_FONT (font)));
+  return cairo_ft_scaled_font_lock_face (pango_cairo_fc_font_get_scaled_font (PANGO_CAIRO_FONT (font)));
 }
 
 static void
 pango_cairo_fc_font_unlock_face (PangoFcFont *font)
 {
-  cairo_ft_font_unlock_face (pango_cairo_fc_font_get_cairo_font (PANGO_CAIRO_FONT (font)));
+  cairo_ft_scaled_font_unlock_face (pango_cairo_fc_font_get_scaled_font (PANGO_CAIRO_FONT (font)));
 }
 
 static PangoGlyph
@@ -194,10 +233,15 @@ static void
 pango_cairo_fc_font_shutdown (PangoFcFont *fcfont)
 {
   PangoCairoFcFont *cffont = PANGO_CAIRO_FC_FONT (fcfont);
-  if (cffont->cairo_font)
+  if (cffont->scaled_font)
+    {
+      cairo_scaled_font_destroy (cffont->scaled_font);
+      cffont->scaled_font = NULL;
+    }
+  if (cffont->font_face)
     {
-      cairo_font_destroy (cffont->cairo_font);
-      cffont->cairo_font = NULL;
+      cairo_font_face_destroy (cffont->font_face);
+      cffont->font_face = NULL;
     }
 }
 
@@ -366,26 +410,16 @@ _pango_cairo_fc_font_new (PangoCairoFcFontMap        *cffontmap,
   cairo_matrix_scale (cffont->font_matrix,
 		      size / PANGO_SCALE, size / PANGO_SCALE);
 
-  cffont->total_matrix = cairo_matrix_create ();
+  cffont->ctm = cairo_matrix_create ();
 
   pango_ctm = pango_context_get_matrix (context);
   if (pango_ctm)
-    {
-      cairo_matrix_t *ctm;
-
-      ctm = cairo_matrix_create ();
-      cairo_matrix_set_affine (ctm,
-			       pango_ctm->xx,
-			       pango_ctm->yx,
-			       pango_ctm->xy,
-			       pango_ctm->yy,
-			       0., 0.);
-      
-      cairo_matrix_multiply (cffont->total_matrix, cffont->font_matrix, ctm);
-      cairo_matrix_destroy (ctm);
-    }
-  else
-    cairo_matrix_copy (cffont->total_matrix, cffont->font_matrix);
+    cairo_matrix_set_affine (cffont->ctm,
+			     pango_ctm->xx,
+			     pango_ctm->yx,
+			     pango_ctm->xy,
+			     pango_ctm->yy,
+			     0., 0.);
 
   return PANGO_FC_FONT (cffont);
 }
diff --git a/pango/pangocairo-font.c b/pango/pangocairo-font.c
index 756e1044..15837155 100644
--- a/pango/pangocairo-font.c
+++ b/pango/pangocairo-font.c
@@ -53,15 +53,18 @@ pango_cairo_font_get_type (void)
 }
 
 /**
- * _pango_cairo_font_get_cairo_font:
+ * _pango_cairo_font_install:
  * @font: a #PangoCairoFont
+ * @cr: a #cairo_t
  *
- * Get the cairo_font_t for a PangoCairoFont.
+ * Makes @font the current font for rendering in the specified
+ * Cairo context.
  **/
-cairo_font_t *
-_pango_cairo_font_get_cairo_font (PangoCairoFont *font)
+void
+_pango_cairo_font_install (PangoCairoFont *font,
+			   cairo_t        *cr)
 {
-  g_return_val_if_fail (PANGO_IS_CAIRO_FONT (font), NULL);
+  g_return_if_fail (PANGO_IS_CAIRO_FONT (font));
   
-  return (* PANGO_CAIRO_FONT_GET_IFACE (font)->get_cairo_font) (font);
+  return (* PANGO_CAIRO_FONT_GET_IFACE (font)->install) (font, cr);
 }
diff --git a/pango/pangocairo-private.h b/pango/pangocairo-private.h
index b964d7f4..0c544bd8 100644
--- a/pango/pangocairo-private.h
+++ b/pango/pangocairo-private.h
@@ -56,12 +56,14 @@ struct _PangoCairoFontIface
 {
   GTypeInterface g_iface;
 
-  cairo_font_t *(*get_cairo_font) (PangoCairoFont *font);
+  void (*install) (PangoCairoFont *font,
+		   cairo_t        *cr);
 };
 
 GType pango_cairo_font_get_type (void);
 
-cairo_font_t *_pango_cairo_font_get_cairo_font (PangoCairoFont *font);
+void _pango_cairo_font_install (PangoCairoFont *font,
+				cairo_t        *cr);
 
 #define PANGO_TYPE_CAIRO_RENDERER            (pango_cairo_renderer_get_type())
 #define PANGO_CAIRO_RENDERER(object)         (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_CAIRO_RENDERER, PangoCairoRenderer))
diff --git a/pango/pangocairo-render.c b/pango/pangocairo-render.c
index c1598c45..00c1bdc5 100644
--- a/pango/pangocairo-render.c
+++ b/pango/pangocairo-render.c
@@ -96,8 +96,7 @@ pango_cairo_renderer_draw_glyphs (PangoRenderer     *renderer,
       x_position += gi->geometry.width;
     }
 
-  cairo_set_font (crenderer->cr,
-		  _pango_cairo_font_get_cairo_font (PANGO_CAIRO_FONT (font)));
+  _pango_cairo_font_install (PANGO_CAIRO_FONT (font), crenderer->cr);
   
   if (crenderer->do_path)
     cairo_glyph_path (crenderer->cr, cairo_glyphs, glyphs->num_glyphs);
@@ -423,7 +422,7 @@ pango_cairo_glyph_string_path (cairo_t          *cr,
   crenderer->x_offset = 0.;
   crenderer->y_offset = 0.;
   
-  cairo_set_font (cr, NULL);
+  cairo_set_font_face (cr, NULL);
 }
 
 /**
@@ -465,7 +464,7 @@ pango_cairo_layout_line_path (cairo_t          *cr,
   crenderer->x_offset = 0.;
   crenderer->y_offset = 0.;
   
-  cairo_set_font (cr, NULL);
+  cairo_set_font_face (cr, NULL);
 }
 
 /**
@@ -507,6 +506,6 @@ pango_cairo_layout_path (cairo_t     *cr,
   crenderer->x_offset = 0.;
   crenderer->y_offset = 0.;
   
-  cairo_set_font (cr, NULL);
+  cairo_set_font_face (cr, NULL);
 }
 
diff --git a/pango/pangocairo-win32font.c b/pango/pangocairo-win32font.c
index 033c49f2..4cb42b1d 100644
--- a/pango/pangocairo-win32font.c
+++ b/pango/pangocairo-win32font.c
@@ -46,7 +46,9 @@ struct _PangoCairoWin32Font
 
   int size;
 
-  cairo_font_t *cairo_font;
+  cairo_font_face_t font_face;
+  cairo_scaled_font_t *scaled_font;
+  
   cairo_matrix_t *font_matrix;
   cairo_matrix_t *total_matrix;
 
@@ -64,13 +66,13 @@ GType pango_cairo_win32_font_get_type (void);
  *       Utility functions     *
  *******************************/
 
-static cairo_font_t *
-pango_cairo_win32_font_get_cairo_font (PangoCairoFont *font)
+static cairo_font_face_t *
+pango_cairo_win32_font_get_font_face (PangoCairoFont *font)
 {
   PangoCairoWin32Font *cwfont = PANGO_CAIRO_WIN32_FONT (font);
   PangoWin32Font *win32font = PANGO_WIN32_FONT (cwfont);
 
-  if (cwfont->cairo_font == NULL)
+  if (cwfont->font_face == NULL)
     {
       LOGFONTW logfontw;
 
@@ -84,33 +86,67 @@ pango_cairo_win32_font_get_cairo_font (PangoCairoFont *font)
 				win32font->logfont.lfFaceName, strlen (win32font->logfont.lfFaceName),
 				logfontw.lfFaceName, sizeof(logfontw.lfFaceName)))
 	logfontw.lfFaceName[0] = 0; /* Hopefully this will select some font */
-	
-      cwfont->cairo_font = cairo_win32_font_create_for_logfontw (&logfontw,
-								 cwfont->total_matrix);
+      
+      cwfont->font_face = cairo_win32_font_face_create_for_logfontw (&logfontw);
+
+      /* Failure of the above should only occur for out of memory,
+       * we can't proceed at that point
+       */
+      if (!cwfont->font_face)
+	g_error ("Unable create Cairo font");
+    }
+  
+  return cwfont->font_face;
+}
+
+static cairo_scaled_font_t *
+pango_cairo_win32_font_get_scaled_font (PangoCairoFont *font)
+{
+  PangoCairoWin32Font *cffont = PANGO_CAIRO_WIN32_FONT (font);
+
+  if (!cffont->scaled_font)
+    {
+      cairo_font_face_t *font_face;
+
+      font_face = pango_cairo_win32_font_get_font_face (font);
+      cffont->scaled_font = cairo_scaled_font_create (font_face,
+						      cffont->font_matrix,
+						      cffont->ctm);
 
       /* Failure of the above should only occur for out of memory,
        * we can't proceed at that point
        */
-      if (!cwfont->cairo_font)
+      if (!cffont->scaled_font)
 	g_error ("Unable create Cairo font");
     }
   
-  return cwfont->cairo_font;
+  return cffont->scaled_font;
+}
+
+/********************************
+ *    Method implementations    *
+ ********************************/
+
+static void
+pango_cairo_win32_font_install (PangoCairoFont *font,
+				cairo_t        *cr)
+{
+  PangoCairoWin32Font *cffont = PANGO_CAIRO_WIN32_FONT (font);
+
+  cairo_set_font_face (cr,
+		       pango_cairo_win32_font_get_font_face (font));
+  cairo_transform_font (cr, cffont->font_matrix);
 }
 
 static void
 cairo_font_iface_init (PangoCairoFontIface *iface)
 {
-  iface->get_cairo_font = pango_cairo_win32_font_get_cairo_font;
+  iface->install = pango_cairo_win32_font_install;
 }
 
 G_DEFINE_TYPE_WITH_CODE (PangoCairoWin32Font, pango_cairo_win32_font, PANGO_TYPE_WIN32_FONT,
     { G_IMPLEMENT_INTERFACE (PANGO_TYPE_CAIRO_FONT, cairo_font_iface_init) });
 
-/********************************
- *    Method implementations    *
- ********************************/
-
 static void
 pango_cairo_win32_font_finalize (GObject *object)
 {
@@ -119,8 +155,8 @@ pango_cairo_win32_font_finalize (GObject *object)
   if (cwfont->metrics)
     pango_font_metrics_unref (cwfont->metrics);
   
-  if (cwfont->cairo_font)
-    cairo_font_destroy (cwfont->cairo_font);
+  if (cwfont->scaled_font)
+    cairo_scaled_font_destroy (cwfont->scaled_font);
 
   cairo_matrix_destroy (cwfont->total_matrix);
   cairo_matrix_destroy (cwfont->font_matrix);
@@ -135,18 +171,18 @@ pango_cairo_win32_font_get_glyph_extents (PangoFont        *font,
 				       PangoRectangle   *logical_rect)
 {
   PangoCairoWin32Font *cwfont = PANGO_CAIRO_WIN32_FONT (font);
-  cairo_font_t *cairo_font;
+  cairo_scaled_font_t *scaled__font;
   cairo_text_extents_t extents;
   cairo_glyph_t cairo_glyph;
 
-  cairo_font = pango_cairo_win32_font_get_cairo_font (PANGO_CAIRO_FONT (font));
+  scaled_font = pango_cairo_win32_font_get_scaled_font (PANGO_CAIRO_FONT (font));
 
   cairo_glyph.index = glyph;
   cairo_glyph.x = 0;
   cairo_glyph.y = 0;
 
-  cairo_font_glyph_extents (cairo_font, cwfont->font_matrix,
-			    &cairo_glyph, 1, &extents);
+  cairo_scaled_font_glyph_extents (scaled_font, cwfont->font_matrix,
+				   &cairo_glyph, 1, &extents);
 
   if (ink_rect)
     {
@@ -160,8 +196,8 @@ pango_cairo_win32_font_get_glyph_extents (PangoFont        *font,
     {
       cairo_font_extents_t font_extents;
 
-      cairo_font_extents (cairo_font, cwfont->font_matrix,
-			  &font_extents);
+      cairo_scaled_font_extents (scaled_font, cwfont->font_matrix,
+				 &font_extents);
       
       logical_rect->x = 0;
       logical_rect->y = - font_extents.ascent * PANGO_SCALE;
@@ -179,14 +215,14 @@ pango_cairo_win32_font_get_metrics (PangoFont        *font,
   if (!cwfont->metrics)
     {
       double height;
-      cairo_font_t *cairo_font;
+      cairo_sacled_font_t *scaled_font;
       cairo_font_extents_t font_extents;
       cwfont->metrics = pango_font_metrics_new ();
 
-      cairo_font = pango_cairo_win32_font_get_cairo_font (PANGO_CAIRO_FONT (font));
+      scaled_font = pango_cairo_win32_font_get_scaled_font (PANGO_CAIRO_FONT (font));
 
-      cairo_font_extents (cairo_font, cwfont->font_matrix,
-			  &font_extents);
+      cairo_scaled_font_extents (scaled_font, cwfont->font_matrix,
+				 &font_extents);
       
       cwfont->metrics->ascent = font_extents.ascent * PANGO_SCALE;
       cwfont->metrics->descent = font_extents.ascent * PANGO_SCALE;
@@ -208,26 +244,26 @@ static gboolean
 pango_cairo_win32_font_select_font (PangoFont *font,
 				    HDC        hdc)
 {
-  cairo_font_t *cairo_font = pango_cairo_win32_font_get_cairo_font (PANGO_CAIRO_FONT (font));
+  cairo_scaled_font_t *scaled_font = pango_cairo_win32_font_get_scaled_font (PANGO_CAIRO_FONT (font));
   
-  return cairo_win32_font_select_font (cairo_font, hdc) == CAIRO_STATUS_SUCCESS;
+  return cairo_win32_scaled_font_select_font (scaled_font, hdc) == CAIRO_STATUS_SUCCESS;
 }
 
 static void
 pango_cairo_win32_font_done_font (PangoFont *font)
 {
-  cairo_font_t *cairo_font = pango_cairo_win32_font_get_cairo_font (PANGO_CAIRO_FONT (font));
+  cairo_font_t *scaled_font = pango_cairo_win32_font_get_scaled_font (PANGO_CAIRO_FONT (font));
   
-  cairo_win32_font_done_font (cairo_font);
+  cairo_win32_scaled_font_done_font (scaled_font);
 }
 
 static double
-pango_cairo_win32_font_get_scale_factor (PangoFont *font)
+pango_cairo_win32_font_get_metrics_factor (PangoFont *font)
 {
   PangoWin32Font *win32font = PANGO_WIN32_FONT (font);
-  cairo_font_t *cairo_font = pango_cairo_win32_font_get_cairo_font (PANGO_CAIRO_FONT (font));
+  cairo_scaled_font_t *scaled_font = pango_cairo_win32_font_get_scaled_font (PANGO_CAIRO_FONT (font));
 
-  return cairo_win32_font_get_scale_factor (cairo_font) * win32font->size;
+  return cairo_win32_scaled_font_get_metrics_factor (scaled_font) * win32font->size;
 }
 
 static void
@@ -244,7 +280,7 @@ pango_cairo_win32_font_class_init (PangoCairoWin32FontClass *class)
 
   win32_font_class->select_font = pango_cairo_win32_font_select_font;
   win32_font_class->done_font = pango_cairo_win32_font_done_font;
-  win32_font_class->get_scale_factor = pango_cairo_win32_font_get_scale_factor;
+  win32_font_class->get_metrics_factor = pango_cairo_win32_font_get_metrics_factor;
 }
 
 static void
diff --git a/pango/pangowin32-private.h b/pango/pangowin32-private.h
index d8449385..6bb1389e 100644
--- a/pango/pangowin32-private.h
+++ b/pango/pangowin32-private.h
@@ -146,10 +146,10 @@ struct _PangoWin32FontClass
 {
   PangoFontClass parent_class;
 
-  gboolean (*select_font)      (PangoFont *font,
-				HDC        hdc);
-  void     (*done_font)        (PangoFont *font);
-  double   (*get_scale_factor) (PangoFont *font);
+  gboolean (*select_font)        (PangoFont *font,
+				  HDC        hdc);
+  void     (*done_font)          (PangoFont *font);
+  double   (*get_metrics_factor) (PangoFont *font);
 };
 
 struct _PangoWin32Face
diff --git a/pango/pangowin32.c b/pango/pangowin32.c
index 3a140daf..a295941e 100644
--- a/pango/pangowin32.c
+++ b/pango/pangowin32.c
@@ -49,10 +49,10 @@ struct _PangoWin32MetricsInfo
 static void pango_win32_font_dispose    (GObject             *object);
 static void pango_win32_font_finalize   (GObject             *object);
 
-static gboolean pango_win32_font_real_select_font      (PangoFont *font,
-							HDC        hdc);
-static void     pango_win32_font_real_done_font        (PangoFont *font);
-static double   pango_win32_font_real_get_scale_factor (PangoFont *font);
+static gboolean pango_win32_font_real_select_font        (PangoFont *font,
+							  HDC        hdc);
+static void     pango_win32_font_real_done_font          (PangoFont *font);
+static double   pango_win32_font_real_get_metrics_factor (PangoFont *font);
 
 static PangoFontDescription *pango_win32_font_describe          (PangoFont        *font);
 static PangoCoverage        *pango_win32_font_get_coverage      (PangoFont        *font,
@@ -74,7 +74,7 @@ static PangoFontMap *        pango_win32_font_get_font_map      (PangoFont
 static gboolean pango_win32_font_real_select_font      (PangoFont *font,
 							HDC        hdc);
 static void     pango_win32_font_real_done_font        (PangoFont *font);
-static double   pango_win32_font_real_get_scale_factor (PangoFont *font);
+static double   pango_win32_font_real_get_metrics_factor (PangoFont *font);
 
 static HFONT                 pango_win32_get_hfont              (PangoFont        *font);
 static void                  pango_win32_get_item_properties    (PangoItem        *item,
@@ -221,7 +221,7 @@ pango_win32_font_class_init (PangoWin32FontClass *class)
 
   class->select_font = pango_win32_font_real_select_font;
   class->done_font = pango_win32_font_real_done_font;
-  class->get_scale_factor = pango_win32_font_real_get_scale_factor;
+  class->get_metrics_factor = pango_win32_font_real_get_metrics_factor;
 
   pango_win32_get_dc ();
 }
@@ -660,7 +660,7 @@ pango_win32_font_real_done_font (PangoFont *font)
 }
 
 static double
-pango_win32_font_real_get_scale_factor (PangoFont *font)
+pango_win32_font_real_get_metrics_factor (PangoFont *font)
 {
   return PANGO_SCALE;
 }
@@ -729,7 +729,7 @@ pango_win32_font_done_font (PangoFont *font)
 }
 
 /**
- * pango_win32_font_get_scale_factor:
+ * pango_win32_font_get_metrics_factor:
  * @font: a #PangoFont from the win32 backend
  * 
  * Returns the scale factor from logical units in the coordinate
@@ -740,11 +740,11 @@ pango_win32_font_done_font (PangoFont *font)
  *               units.
  **/
 double
-pango_win32_font_get_scale_factor (PangoFont *font)
+pango_win32_font_get_metrics_factor (PangoFont *font)
 {
   g_return_val_if_fail (PANGO_WIN32_IS_FONT (font), 1.);
   
-  return PANGO_WIN32_FONT_GET_CLASS (font)->get_scale_factor (font);
+  return PANGO_WIN32_FONT_GET_CLASS (font)->get_metrics_factor (font);
 }
 
 static void
diff --git a/pango/pangowin32.h b/pango/pangowin32.h
index 29903567..5a08f002 100644
--- a/pango/pangowin32.h
+++ b/pango/pangowin32.h
@@ -78,10 +78,10 @@ HDC            pango_win32_get_dc             (void);
 
 gboolean       pango_win32_get_debug_flag     (void);
 
-gboolean pango_win32_font_select_font      (PangoFont *font,
-					    HDC        hdc);
-void     pango_win32_font_done_font        (PangoFont *font);
-double   pango_win32_font_get_scale_factor (PangoFont *font);
+gboolean pango_win32_font_select_font        (PangoFont *font,
+					      HDC        hdc);
+void     pango_win32_font_done_font          (PangoFont *font);
+double   pango_win32_font_get_metrics_factor (PangoFont *font);
 
 #endif