theme: move meta_pango_font_desc_get_text_height to libmetacity

1 files changed, 26 insertions, 0 deletions

diff --git a/libmetacity/meta-theme.c b/libmetacity/meta-theme.c
index 86818fea..e875ab96 100644
--- a/libmetacity/meta-theme.c
+++ b/libmetacity/meta-theme.c
@@ -406,6 +406,32 @@ meta_style_info_create_font_desc (MetaTheme     *theme,
   return font_desc;
 }
 
+/**
+ * Returns the height of the letters in a particular font.
+ *
+ * \param font_desc  the font
+ * \param context  the context of the font
+ * \return  the height of the letters
+ */
+gint
+meta_pango_font_desc_get_text_height (const PangoFontDescription *font_desc,
+                                      PangoContext               *context)
+{
+  PangoFontMetrics *metrics;
+  PangoLanguage *lang;
+  int retval;
+
+  lang = pango_context_get_language (context);
+  metrics = pango_context_get_metrics (context, font_desc, lang);
+
+  retval = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
+                         pango_font_metrics_get_descent (metrics));
+
+  pango_font_metrics_unref (metrics);
+
+  return retval;
+}
+
 gboolean
 meta_theme_allows_shade_stick_above_buttons (MetaTheme *theme)
 {