(mfont__init): Initialize Mx, Mfreetype, and Mxft.

(Mx, Mfreetype): Declare here.
(Mxft): New variable.
(mfont_resize_ratio): New function.

diff --git a/src/font.c b/src/font.c
index 6d42b47..2bda328 100644 (file)
--- a/src/font.c
+++ b/src/font.c
@@ -821,6 +821,10 @@ mfont__init ()
 
   Mfontconfig = msymbol ("fontconfig");
 
+  Mx = msymbol ("x");
+  Mfreetype = msymbol ("freetype");
+  Mxft = msymbol ("xft");
+
   /* The first entry of each mfont__property_table must be Mnil so
      that actual properties get positive numeric numbers.  */
   for (i = 0; i <= MFONT_REGISTRY; i++)
@@ -1428,6 +1432,33 @@ MSymbol Mresolution;
 
 MSymbol Mfontconfig;
 
+/***en
+    @brief Symbol of name "x".
+
+    The variable #Mx is to be used for a value of <type> member of the
+    structure #MDrawGlyph to specify the type of <fontp> member is
+    actually (XFontStruct *).  */
+
+MSymbol Mx;
+
+/***en
+    @brief Symbol of name "freetype".
+
+    The variable #Mfreetype is to be used for a value of <type> member
+    of the structure #MDrawGlyph to specify the type of <fontp> member
+    is actually FT_Face.  */
+
+MSymbol Mfreetype;
+
+/***en
+    @brief Symbol of name "xft".
+
+    The variable #Mxft is to be used for a value of <type> member of the
+    structure #MDrawGlyph to specify the type of <fontp> member
+    is actually (XftFont *).  */
+
+MSymbol Mxft;
+
 /*=*/
 /*** @} */
 /*=*/
@@ -2026,6 +2057,35 @@ mfont_from_name (char *name)
   return mfont_parse_name (name, Mx);
 }
 
+/*=*/
+
+/***en
+    @brief Get resize information of a font.
+
+    The mfont_resize_ratio () function lookups the m17n database
+    \<font, reisize\> and returns a resizing ratio (in percentage) of
+    FONT.  For instance, if the return value is 150, that means that
+    the m17n library uses an 1.5 time bigger font than a specified
+    size.  */
+
+/***ja
+    @brief ¥Õ¥©¥ó¥È¤Î¥ê¥µ¥¤¥º¾ðÊó¤òÆÀ¤ë
+
+    ´Ø¿ô mfont_resize_ratio ¤Ï m17n ¥Ç¡¼¥¿¥Ù¡¼¥¹ \<font, reisize\> ¤ò¸¡
+    º÷¤·¡¢¥Õ¥©¥ó¥È FONT ¤Î¥ê¥µ¥¤¥º¤ÎÈæΨ¡Ê¥Ñ¡¼¥»¥ó¥Æ¡¼¥¸¡Ë¤òÊÖ¤¹¡£Î㤨
+    ¤ÐÊÖÃͤ¬ 150 ¤Ç¤¢¤ì¤Ð¡¢m17n ¥é¥¤¥Ö¥é¥ê¤Ï»ØÄꤵ¤ì¤¿¥µ¥¤¥º¤Î 1.5 ÇܤÎ
+    ¥Õ¥©¥ó¥È¤ò»ÈÍѤ¹¤ë¤³¤È¤ò°ÕÌ£¤¹¤ë¡£ */
+
+int
+mfont_resize_ratio (MFont *font)
+{
+  MFont request = *font;
+
+  mfont__resize (font, &request);
+  return (font->property[MFONT_SIZE] * 100 / request.property[MFONT_SIZE]);
+}
+
+
 /*** @} */
 
 /*** @addtogroup m17nDebug */