New font translation code for utf-8, but commented out at moment

svn path=/trunk/; revision=5194

1 files changed, 135 insertions, 0 deletions

diff --git a/e-util/e-font.c b/e-util/e-font.c
index 35b9d4db72..6f46b07f03 100644
--- a/e-util/e-font.c
+++ b/e-util/e-font.c
@@ -11,6 +11,8 @@
  *
  */
 
+#include <string.h>
+#include <gdk/gdkx.h>
 #include <unicode.h>
 #include "e-font.h"
 
@@ -127,6 +129,139 @@ e_font_utf8_char_width (EFont *font, EFontStyle style, char *text)
 	return gdk_text_width (&font->font, &iso, 1);
 }
 
+static const gchar *
+translate_encoding (const gchar *encoding)
+{
+	static GHashTable *eh = NULL;
+	gchar e[64];
+
+	if (!eh) {
+		eh = g_hash_table_new (g_str_hash, g_str_equal);
+
+		g_hash_table_insert (eh, "iso8859-1", "iso-8859-1");
+		g_hash_table_insert (eh, "iso8859-2", "iso-8859-2");
+		g_hash_table_insert (eh, "iso8859-3", "iso-8859-3");
+		g_hash_table_insert (eh, "iso8859-4", "iso-8859-4");
+		g_hash_table_insert (eh, "iso8859-5", "iso-8859-5");
+		g_hash_table_insert (eh, "iso10646-1", "UCS2");
+	}
+
+	strncpy (e, encoding, 64);
+	g_strdown (e);
+
+	return g_hash_table_lookup (eh, e);
+}
+
+const gchar *
+e_gdk_font_encoding (GdkFont *font)
+{
+	Atom font_atom, atom;
+	Bool status;
+	char *name, *p;
+	const gchar *encoding;
+
+	if (!font) return NULL;
+
+	font_atom = gdk_atom_intern ("FONT", FALSE);
+
+	if (font->type == GDK_FONT_FONTSET) {
+		XFontStruct **font_structs;
+		gint num_fonts;
+		gchar **font_names;
+
+		num_fonts = XFontsOfFontSet (GDK_FONT_XFONT (font),
+					     &font_structs,
+					     &font_names);
+		status = XGetFontProperty (font_structs[0],
+					   font_atom,
+					   &atom);
+	} else {
+		status = XGetFontProperty (GDK_FONT_XFONT (font),
+					   font_atom,
+					   &atom);
+	}
+
+	if (!status) return NULL;
+
+	name = gdk_atom_name (atom);
+	p = strchr (name, '-'); /* Foundry */
+	p = strchr (p + 1, '-'); /* Family */
+	p = strchr (p + 1, '-'); /* Weight */
+	p = strchr (p + 1, '-'); /* Slant */
+	p = strchr (p + 1, '-'); /* Set Width */
+	p = strchr (p + 1, '-'); /* Add Style */
+	p = strchr (p + 1, '-'); /* Pixel Size */
+	p = strchr (p + 1, '-'); /* Point Size */
+	p = strchr (p + 1, '-'); /* Resolution X */
+	p = strchr (p + 1, '-'); /* Resolution Y */
+	p = strchr (p + 1, '-'); /* Spacing */
+	p = strchr (p + 1, '-'); /* Average Width */
+	p = strchr (p + 1, '-'); /* Charset */
+
+	encoding = translate_encoding (p + 1);
+
+	g_free (name);
+
+	return encoding;
+}
+
+unicode_iconv_t
+e_uiconv_from_gdk_font (GdkFont *font)
+{
+	static GHashTable *uh = NULL;
+	const gchar *enc;
+	unicode_iconv_t uiconv;
+
+	if (!font) return (unicode_iconv_t) -1;
+
+	enc = e_gdk_font_encoding (font);
+
+	if (!enc) return (unicode_iconv_t) -1;
+
+	if (!uh) {
+		uh = g_hash_table_new (g_str_hash, g_str_equal);
+	}
+
+	uiconv = g_hash_table_lookup (uh, enc);
+
+	if (!uiconv) {
+		uiconv = unicode_iconv_open ("UTF-8", enc);
+		if (uiconv == (unicode_iconv_t) -1) return uiconv;
+		g_hash_table_insert (uh, (gpointer) enc, uiconv);
+	}
+
+	return uiconv;
+}
+
+unicode_iconv_t
+e_uiconv_to_gdk_font (GdkFont *font)
+{
+	static GHashTable *uh = NULL;
+	const gchar *enc;
+	unicode_iconv_t uiconv;
+
+	if (!font) return (unicode_iconv_t) -1;
+
+	enc = e_gdk_font_encoding (font);
+
+	if (!enc) return (unicode_iconv_t) -1;
+
+	if (!uh) {
+		uh = g_hash_table_new (g_str_hash, g_str_equal);
+	}
+
+	uiconv = g_hash_table_lookup (uh, enc);
+
+	if (!uiconv) {
+		uiconv = unicode_iconv_open (enc, "UTF-8");
+		if (uiconv == (unicode_iconv_t) -1) return uiconv;
+		g_hash_table_insert (uh, (gpointer) enc, uiconv);
+	}
+
+	return uiconv;
+}
+
+