no need for font_{ascent,descent,height} wrappers; limit font_width to

just requiring xftfont.

font.c

@@ -30,24 +30,6 @@
 
 #include "calmwm.h"
 
-int
-font_ascent(struct screen_ctx *sc)
-{
-	return (sc->xftfont->ascent);
-}
-
-int
-font_descent(struct screen_ctx *sc)
-{
-	return (sc->xftfont->descent);
-}
-
-u_int
-font_height(struct screen_ctx *sc)
-{
-	return (sc->xftfont->height + 1);
-}
-
 void
 font_init(struct screen_ctx *sc, const char *name, const char **color)
 {
@@ -82,11 +64,11 @@ font_init(struct screen_ctx *sc, const char *name, const char **color)
 }
 
 int
-font_width(struct screen_ctx *sc, const char *text, int len)
+font_width(XftFont *xftfont, const char *text, int len)
 {
 	XGlyphInfo	 extents;
 
-	XftTextExtentsUtf8(X_Dpy, sc->xftfont, (const FcChar8*)text,
+	XftTextExtentsUtf8(X_Dpy, xftfont, (const FcChar8*)text,
 	    len, &extents);
 
 	return (extents.xOff);