aboutsummaryrefslogtreecommitdiffstats
path: root/e-util/e-font.c
diff options
context:
space:
mode:
Diffstat (limited to 'e-util/e-font.c')
-rw-r--r--e-util/e-font.c532
1 files changed, 0 insertions, 532 deletions
diff --git a/e-util/e-font.c b/e-util/e-font.c
deleted file mode 100644
index b33a3bc08d..0000000000
--- a/e-util/e-font.c
+++ /dev/null
@@ -1,532 +0,0 @@
-#define _E_FONT_C_
-
-/*
- * e-font
- *
- * Temporary wrappers around GdkFonts to get unicode displaying
- *
- * Author: Lauris Kaplinski <lauris@helixcode.com>
- *
- * Copyright (C) 2000 Helix Code, Inc.
- *
- * TODO: LRU Cache
- *
- */
-
-#include <string.h>
-#include <gdk/gdkx.h>
-#include <unicode.h>
-#include "e-font.h"
-
-#define FONT_TESTING
-
-struct _EFont {
- gint refcount;
- GdkFont *font;
- GdkFont *bold;
- gboolean twobyte;
- unicode_iconv_t to;
- unicode_iconv_t from;
-};
-
-static gboolean find_variants (gchar **namelist, gint length,
- gchar *base_weight, gchar **light,
- gchar **bold);
-
-EFont *
-e_font_from_gdk_name (const gchar *name)
-{
- EFont * font;
- GdkFont *gdkfont;
-
- gdkfont = gdk_font_load (name);
- font = e_font_from_gdk_font (gdkfont);
- gdk_font_unref (gdkfont);
-
- return font;
-}
-
-EFont *
-e_font_from_gdk_font (GdkFont *gdkfont)
-{
- EFont *font;
- XFontStruct *xfs;
- Atom font_atom, atom;
- Bool status;
- GdkFont *boldfont, *lightfont;
-
- boldfont = lightfont = NULL;
-
- gdk_font_ref (gdkfont);
-
- /* Try to find iso-10646-1 encoded font with same name */
-
- font_atom = gdk_atom_intern ("FONT", FALSE);
- if (gdkfont->type == GDK_FONT_FONTSET) {
- XFontStruct **font_structs;
- gint num_fonts;
- gchar **font_names;
- num_fonts = XFontsOfFontSet (GDK_FONT_XFONT (gdkfont),
- &font_structs,
- &font_names);
- status = XGetFontProperty (font_structs[0],
- font_atom,
- &atom);
- } else {
- status = XGetFontProperty (GDK_FONT_XFONT (gdkfont),
- font_atom,
- &atom);
- }
- if (status) {
- gchar *c[14];
- gchar *name, *p;
- gchar *enc, *boldname, *lightname;
- gchar **namelist;
- GdkFont *newfont;
- gint numfonts, len, i;
-
- name = gdk_atom_name (atom);
- len = strlen (name) + 64; /* Hope that's sufficent */
- p = name;
-
- for (i = 0; i < 13; i++) {
- c[i] = p;
- /* Skip text */
- while (*p && (*p != '-')) p++;
- /* Replace hyphen with '\0' */
- if (*p) *p++ = '\0';
- }
- c[i] = p;
-
- p = alloca (len);
-
- /* Compose name for unicode encoding */
- enc = "iso10646-1";
- g_snprintf (p, len, "%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s",
- c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7],
- c[8], c[9], c[10], c[11], c[12], enc);
- /* Try to load unicode font */
- newfont = gdk_font_load (p);
- if (newfont) {
- /* OK, use that */
- gdk_font_unref (gdkfont);
- gdkfont = newfont;
- } else {
- /* Nope, use original encoding */
- enc = c[13];
- }
- /* Try to find bolder variant */
- g_snprintf (p, len, "%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s",
- c[0], c[1], c[2], "*", c[4], c[5], "*", "*",
- c[8], c[9], c[10], c[11], "*", enc);
- namelist = XListFonts (GDK_FONT_XDISPLAY (gdkfont),
- p, 32, &numfonts);
- if (find_variants (namelist, numfonts, c[3],
- &lightname, &boldname)) {
- if (!g_strcasecmp (c[3], lightname))
- lightfont = gdkfont;
- else if (!g_strcasecmp (c[3], boldname))
- boldfont = gdkfont;
- else
- gdk_font_unref (gdkfont);
-
- if (!lightfont) {
- g_snprintf (p, len, "%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s",
- c[0], c[1], c[2], lightname, c[4],
- c[5], "*", "*", c[8], c[9], c[10],
- c[11], "*", enc);
- lightfont = gdk_font_load (p);
- }
- if (!boldfont) {
- g_snprintf (p, len, "%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s",
- c[0], c[1], c[2], boldname, c[4],
- c[5], "*", "*", c[8], c[9], c[10],
- c[11], "*", enc);
- boldfont = gdk_font_load (p);
- }
- } else
- lightfont = gdkfont;
- XFreeFontNames (namelist);
-
- g_free (name);
- }
-
- font = g_new (EFont, 1);
-
- xfs = GDK_FONT_XFONT (gdkfont);
-
- font->refcount = 1;
- font->font = lightfont;
- font->bold = boldfont;
- font->twobyte = ((xfs->min_byte1 != 0) || (xfs->max_byte1 != 0));
- font->to = e_uiconv_to_gdk_font (font->font);
- font->from = e_uiconv_from_gdk_font (font->font);
-
- return font;
-
-}
-
-void
-e_font_ref (EFont *font)
-{
- font->refcount++;
-}
-
-void
-e_font_unref (EFont *font)
-{
- font->refcount--;
-
- if (font->refcount < 1) {
- gdk_font_unref (font->font);
- if (font->bold) gdk_font_unref (font->bold);
- g_free (font);
- }
-}
-
-gint
-e_font_ascent (EFont * font)
-{
- return font->font->ascent;
-}
-
-gint
-e_font_descent (EFont * font)
-{
- return font->font->descent;
-}
-
-static gint
-e_font_to_native (EFont *font, gchar *native, gchar *utf, gint bytes)
-{
- char *ib, *ob;
- size_t ibl, obl;
-
- ib = utf;
- ibl = bytes;
- ob = native;
- obl = bytes * 4;
-
- while (ibl > 0) {
- unicode_iconv (font->to, (const char **) &ib, &ibl, &ob, &obl);
- if (ibl > 0) {
- gint len;
- if ((*ib & 0x80) == 0x00) len = 1;
- else if ((*ib &0xe0) == 0xc0) len = 2;
- else if ((*ib &0xf0) == 0xe0) len = 3;
- else if ((*ib &0xf80) == 0xf0) len = 4;
- else {
- g_warning ("Invalid UTF-8 sequence");
- return ob - native;
- }
- ib += len;
- ibl = bytes - (ib - utf);
- if (ibl > bytes) ibl = 0;
- if (!font->twobyte) {
- *ob++ = '_';
- obl--;
- } else {
- *((guint16 *) ob) = '_';
- ob += 2;
- obl -= 2;
- }
- }
- }
-
- return ob - native;
-}
-
-void
-e_font_draw_utf8_text (GdkDrawable *drawable, EFont *font, EFontStyle style, GdkGC *gc, gint x, gint y, gchar *text, gint numbytes)
-{
- gchar *native;
- gint native_bytes;
-
- g_return_if_fail (drawable != NULL);
- g_return_if_fail (font != NULL);
- g_return_if_fail (gc != NULL);
- g_return_if_fail (text != NULL);
-
- if (numbytes < 1) return;
-
- native = alloca (numbytes * 4);
-
- native_bytes = e_font_to_native (font, native, text, numbytes);
-
- if ((style & E_FONT_BOLD) && (font->bold)) {
- gdk_draw_text (drawable, font->bold, gc, x, y, native, native_bytes);
- } else {
- gdk_draw_text (drawable, font->font, gc, x, y, native, native_bytes);
- if (style & E_FONT_BOLD)
- gdk_draw_text (drawable, font->font, gc, x + 1, y, native, native_bytes);
- }
-}
-
-gint
-e_font_utf8_text_width (EFont *font, EFontStyle style, char *text, int numbytes)
-{
- gchar *native;
- gint native_bytes;
- gint width;
-
- g_return_val_if_fail (font != NULL, 0);
- g_return_val_if_fail (text != NULL, 0);
-
- if (numbytes < 1) return 0;
-
- native = alloca (numbytes * 4);
-
- native_bytes = e_font_to_native (font, native, text, numbytes);
-
- if ((style & E_FONT_BOLD) && (font->bold)) {
- width = gdk_text_width (font->bold, native, native_bytes);
- } else {
- width = gdk_text_width (font->font, native, native_bytes);
- }
-
- return width;
-}
-
-gint
-e_font_utf8_char_width (EFont *font, EFontStyle style, char *text)
-{
- gint len;
-
- g_return_val_if_fail (font != NULL, 0);
- g_return_val_if_fail (text != NULL, 0);
-
- if ((*text & 0x80) == 0x00) len = 1;
- else if ((*text &0xe0) == 0xc0) len = 2;
- else if ((*text &0xf0) == 0xe0) len = 3;
- else if ((*text &0xf80) == 0xf0) len = 4;
- else {
- g_warning ("Invalid UTF-8 sequence");
- return 0;
- }
-
- return e_font_utf8_text_width (font, style, text, len);
-}
-
-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, "iso8859-6", "iso-8859-6");
- g_hash_table_insert (eh, "iso8859-7", "iso-8859-7");
- g_hash_table_insert (eh, "iso8859-8", "iso-8859-8");
- g_hash_table_insert (eh, "iso8859-9", "iso-8859-9");
- g_hash_table_insert (eh, "iso8859-10", "iso-8859-10");
- g_hash_table_insert (eh, "iso8859-13", "iso-8859-13");
- g_hash_table_insert (eh, "iso8859-14", "iso-8859-14");
- g_hash_table_insert (eh, "iso8859-15", "iso-8859-15");
- g_hash_table_insert (eh, "iso10646-1", "UTF-16");
- g_hash_table_insert (eh, "koi8-r", "koi8-r");
- }
-
- 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;
- gint i;
-
- 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 = p = gdk_atom_name (atom);
-
- for (i = 0; i < 13; i++) {
- /* Skip hyphen */
- while (*p && (*p != '-')) p++;
- if (*p) p++;
- }
-
- if (!*p) return NULL;
-
- encoding = translate_encoding (p);
-
- 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;
-}
-
-/* Find light and bold variants of a font, ideally using the provided
- * weight for the light variant, and a weight 2 shades darker than it
- * for the bold variant. If there isn't something 2 shades darker, use
- * something 3 or more shades darker if it exists, or 1 shade darker
- * if that's all there is. If there is nothing darker than the provided
- * weight, but there are lighter fonts, then use the darker one for
- * bold and a lighter one for light.
- */
-static gboolean
-find_variants (gchar **namelist, gint length, gchar *weight,
- gchar **lightname, gchar **boldname)
-{
- static GHashTable *wh = NULL;
- /* Standard, Found, Bold, Light */
- gint sw, fw, bw, lw;
- gchar *s, *f, *b, *l;
- gchar *p;
- gint i;
-
- if (!wh) {
- wh = g_hash_table_new (g_str_hash, g_str_equal);
- g_hash_table_insert (wh, "light", GINT_TO_POINTER (1));
- g_hash_table_insert (wh, "book", GINT_TO_POINTER (2));
- g_hash_table_insert (wh, "regular", GINT_TO_POINTER (2));
- g_hash_table_insert (wh, "medium", GINT_TO_POINTER (3));
- g_hash_table_insert (wh, "demibold", GINT_TO_POINTER (5));
- g_hash_table_insert (wh, "bold", GINT_TO_POINTER (6));
- g_hash_table_insert (wh, "black", GINT_TO_POINTER (8));
- }
-
- s = alloca (strlen (weight) + 1);
- strcpy (s, weight);
- g_strdown (s);
- sw = GPOINTER_TO_INT (g_hash_table_lookup (wh, s));
- if (sw == 0) return FALSE;
-
- fw = 0; lw = 0; bw = 32;
- f = NULL; l = NULL; b = NULL;
- *lightname = NULL; *boldname = NULL;
-
- for (i = 0; i < length; i++) {
- p = namelist[i];
- if (*p) p++;
- while (*p && (*p != '-')) p++;
- if (*p) p++;
- while (*p && (*p != '-')) p++;
- if (*p) p++;
- f = p;
- while (*p && (*p != '-')) p++;
- if (*p) *p = '\0';
- g_strdown (f);
- fw = GPOINTER_TO_INT (g_hash_table_lookup (wh, f));
- if (fw) {
- if (fw > sw) {
- if ((fw - 2 == sw) ||
- ((fw > bw) && (bw == sw + 1)) ||
- ((fw < bw) && (fw - 2 > sw))) {
- bw = fw;
- b = f;
- }
- } else if (fw < sw) {
- if ((fw + 2 == sw) ||
- ((fw < lw) && (lw == sw - 1)) ||
- ((fw > lw) && (fw + 2 < sw))) {
- lw = fw;
- l = f;
- }
- }
- }
- }
-
- if (b) {
- *lightname = weight;
- *boldname = b;
- return TRUE;
- } else if (l) {
- *lightname = l;
- *boldname = weight;
- return TRUE;
- }
- return FALSE;
-}
-
-
-
-
-
-
-
-
generated by cgit (git 2.34.1) at 2024-11-14 00:01:12 +0800