1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
30 #include <pango/pangox.h>
33 #include "gdkprivate-x11.h"
35 static GHashTable *font_name_hash = NULL;
36 static GHashTable *fontset_name_hash = NULL;
39 gdk_font_hash_insert (GdkFontType type, GdkFont *font, const gchar *font_name)
41 GdkFontPrivateX *private = (GdkFontPrivateX *)font;
42 GHashTable **hashp = (type == GDK_FONT_FONT) ?
43 &font_name_hash : &fontset_name_hash;
46 *hashp = g_hash_table_new (g_str_hash, g_str_equal);
48 private->names = g_slist_prepend (private->names, g_strdup (font_name));
49 g_hash_table_insert (*hashp, private->names->data, font);
53 gdk_font_hash_remove (GdkFontType type, GdkFont *font)
55 GdkFontPrivateX *private = (GdkFontPrivateX *)font;
57 GHashTable *hash = (type == GDK_FONT_FONT) ?
58 font_name_hash : fontset_name_hash;
60 tmp_list = private->names;
63 g_hash_table_remove (hash, tmp_list->data);
64 g_free (tmp_list->data);
66 tmp_list = tmp_list->next;
69 g_slist_free (private->names);
70 private->names = NULL;
74 gdk_font_hash_lookup (GdkFontType type, const gchar *font_name)
77 GHashTable *hash = (type == GDK_FONT_FONT) ?
78 font_name_hash : fontset_name_hash;
84 result = g_hash_table_lookup (hash, font_name);
86 gdk_font_ref (result);
93 gdk_font_load (const gchar *font_name)
96 GdkFontPrivateX *private;
99 g_return_val_if_fail (font_name != NULL, NULL);
101 font = gdk_font_hash_lookup (GDK_FONT_FONT, font_name);
105 xfont = XLoadQueryFont (gdk_display, font_name);
109 font = gdk_font_lookup (xfont->fid);
112 private = (GdkFontPrivateX *) font;
113 if (xfont != private->xfont)
114 XFreeFont (gdk_display, xfont);
120 private = g_new (GdkFontPrivateX, 1);
121 private->xdisplay = gdk_display;
122 private->xfont = xfont;
123 private->base.ref_count = 1;
124 private->names = NULL;
126 font = (GdkFont*) private;
127 font->type = GDK_FONT_FONT;
128 font->ascent = xfont->ascent;
129 font->descent = xfont->descent;
131 gdk_xid_table_insert (&xfont->fid, font);
134 gdk_font_hash_insert (GDK_FONT_FONT, font, font_name);
140 gdk_font_charset_for_locale ()
142 static char *charset_map[][2] = {
143 { "ANSI_X3.4-1968", "iso8859-1" },
144 { "ISO-8859-1", "iso8859-1" },
145 { "ISO-8859-2", "iso8859-2" },
146 { "ISO-8859-3", "iso8859-3" },
147 { "ISO-8859-4", "iso8859-4" },
148 { "ISO-8859-5", "iso8859-5" },
149 { "ISO-8859-6", "iso8859-6" },
150 { "ISO-8859-7", "iso8859-7" },
151 { "ISO-8859-8", "iso8859-8" },
152 { "ISO-8859-9", "iso8859-9" },
155 char *codeset = g_get_codeset ();
159 for (i=0; i < G_N_ELEMENTS (charset_map); i++)
160 if (strcmp (charset_map[i][0], codeset) == 0)
162 result = charset_map[i][1];
169 return g_strdup (result);
171 return g_strdup ("iso-8859-1");
175 * gdk_font_from_description:
176 * @font_desc: a #PangoFontDescription.
178 * Load a #GdkFont based on a Pango font description. This font will
179 * only be an approximation of the Pango font, and
180 * internationalization will not be handled correctly. This function
181 * should only be used for legacy code that cannot be easily converted
182 * to use Pango. Using Pango directly will produce better results.
184 * Return value: the newly loaded font, or %NULL if the font
188 gdk_font_from_description (PangoFontDescription *font_desc)
190 PangoFontMap *font_map;
192 GdkFont *result = NULL;
194 g_return_val_if_fail (font_desc != NULL, NULL);
196 font_map = pango_x_font_map_for_display (GDK_DISPLAY ());
197 font = pango_font_map_load_font (font_map, font_desc);
201 gchar *charset = gdk_font_charset_for_locale ();
203 PangoXSubfont *subfont_ids;
204 gint *subfont_charsets;
206 n_subfonts = pango_x_list_subfonts (font, &charset, 1,
207 &subfont_ids, &subfont_charsets);
210 gchar *xlfd = pango_x_font_subfont_xlfd (font, subfont_ids[0]);
211 result = gdk_font_load (xlfd);
216 g_free (subfont_ids);
217 g_free (subfont_charsets);
220 g_object_unref (G_OBJECT (font));
227 gdk_fontset_load (const gchar *fontset_name)
230 GdkFontPrivateX *private;
232 gint missing_charset_count;
233 gchar **missing_charset_list;
236 font = gdk_font_hash_lookup (GDK_FONT_FONTSET, fontset_name);
240 private = g_new (GdkFontPrivateX, 1);
241 font = (GdkFont*) private;
243 private->xdisplay = gdk_display;
244 fontset = XCreateFontSet (gdk_display, fontset_name,
245 &missing_charset_list, &missing_charset_count,
248 if (missing_charset_count)
251 g_warning ("Missing charsets in FontSet creation\n");
252 for (i=0;i<missing_charset_count;i++)
253 g_warning (" %s\n", missing_charset_list[i]);
254 XFreeStringList (missing_charset_list);
257 private->base.ref_count = 1;
268 XFontStruct **font_structs;
271 private->xfont = fontset;
272 font->type = GDK_FONT_FONTSET;
273 num_fonts = XFontsOfFontSet (fontset, &font_structs, &font_names);
275 font->ascent = font->descent = 0;
277 for (i = 0; i < num_fonts; i++)
279 font->ascent = MAX (font->ascent, font_structs[i]->ascent);
280 font->descent = MAX (font->descent, font_structs[i]->descent);
283 private->names = NULL;
284 gdk_font_hash_insert (GDK_FONT_FONTSET, font, fontset_name);
291 _gdk_font_destroy (GdkFont *font)
293 GdkFontPrivateX *private = (GdkFontPrivateX *)font;
295 gdk_font_hash_remove (font->type, font);
300 gdk_xid_table_remove (((XFontStruct *) private->xfont)->fid);
301 XFreeFont (private->xdisplay, (XFontStruct *) private->xfont);
303 case GDK_FONT_FONTSET:
304 XFreeFontSet (private->xdisplay, (XFontSet) private->xfont);
307 g_error ("unknown font type.");
314 _gdk_font_strlen (GdkFont *font,
317 GdkFontPrivateX *font_private;
320 g_return_val_if_fail (font != NULL, -1);
321 g_return_val_if_fail (str != NULL, -1);
323 font_private = (GdkFontPrivateX*) font;
325 if (font->type == GDK_FONT_FONT)
327 XFontStruct *xfont = (XFontStruct *) font_private->xfont;
328 if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
330 length = strlen (str);
334 guint16 *string_2b = (guint16 *)str;
336 while (*(string_2b++))
340 else if (font->type == GDK_FONT_FONTSET)
342 length = strlen (str);
345 g_error("undefined font type\n");
351 gdk_font_id (const GdkFont *font)
353 const GdkFontPrivateX *font_private;
355 g_return_val_if_fail (font != NULL, 0);
357 font_private = (const GdkFontPrivateX*) font;
359 if (font->type == GDK_FONT_FONT)
361 return ((XFontStruct *) font_private->xfont)->fid;
370 gdk_font_equal (const GdkFont *fonta,
371 const GdkFont *fontb)
373 const GdkFontPrivateX *privatea;
374 const GdkFontPrivateX *privateb;
376 g_return_val_if_fail (fonta != NULL, FALSE);
377 g_return_val_if_fail (fontb != NULL, FALSE);
379 privatea = (const GdkFontPrivateX*) fonta;
380 privateb = (const GdkFontPrivateX*) fontb;
382 if (fonta->type == GDK_FONT_FONT && fontb->type == GDK_FONT_FONT)
384 return (((XFontStruct *) privatea->xfont)->fid ==
385 ((XFontStruct *) privateb->xfont)->fid);
387 else if (fonta->type == GDK_FONT_FONTSET && fontb->type == GDK_FONT_FONTSET)
389 gchar *namea, *nameb;
391 namea = XBaseFontNameListOfFontSet((XFontSet) privatea->xfont);
392 nameb = XBaseFontNameListOfFontSet((XFontSet) privateb->xfont);
394 return (strcmp(namea, nameb) == 0);
397 /* fontset != font */
402 gdk_text_width (GdkFont *font,
406 GdkFontPrivateX *private;
411 g_return_val_if_fail (font != NULL, -1);
412 g_return_val_if_fail (text != NULL, -1);
414 private = (GdkFontPrivateX*) font;
419 xfont = (XFontStruct *) private->xfont;
420 if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
422 width = XTextWidth (xfont, text, text_length);
426 width = XTextWidth16 (xfont, (XChar2b *) text, text_length / 2);
429 case GDK_FONT_FONTSET:
430 fontset = (XFontSet) private->xfont;
431 width = XmbTextEscapement (fontset, text, text_length);
440 gdk_text_width_wc (GdkFont *font,
441 const GdkWChar *text,
444 GdkFontPrivateX *private;
449 g_return_val_if_fail (font != NULL, -1);
450 g_return_val_if_fail (text != NULL, -1);
452 private = (GdkFontPrivateX*) font;
457 xfont = (XFontStruct *) private->xfont;
458 if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
462 text_8bit = g_new (gchar, text_length);
463 for (i=0; i<text_length; i++) text_8bit[i] = text[i];
464 width = XTextWidth (xfont, text_8bit, text_length);
472 case GDK_FONT_FONTSET:
473 if (sizeof(GdkWChar) == sizeof(wchar_t))
475 fontset = (XFontSet) private->xfont;
476 width = XwcTextEscapement (fontset, (wchar_t *)text, text_length);
482 fontset = (XFontSet) private->xfont;
483 text_wchar = g_new(wchar_t, text_length);
484 for (i=0; i<text_length; i++) text_wchar[i] = text[i];
485 width = XwcTextEscapement (fontset, text_wchar, text_length);
496 gdk_text_extents (GdkFont *font,
505 GdkFontPrivateX *private;
509 XRectangle ink, logical;
514 g_return_if_fail (font != NULL);
515 g_return_if_fail (text != NULL);
517 private = (GdkFontPrivateX*) font;
522 xfont = (XFontStruct *) private->xfont;
523 if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
525 XTextExtents (xfont, text, text_length,
526 &direction, &font_ascent, &font_descent,
531 XTextExtents16 (xfont, (XChar2b *) text, text_length / 2,
532 &direction, &font_ascent, &font_descent,
536 *lbearing = overall.lbearing;
538 *rbearing = overall.rbearing;
540 *width = overall.width;
542 *ascent = overall.ascent;
544 *descent = overall.descent;
546 case GDK_FONT_FONTSET:
547 fontset = (XFontSet) private->xfont;
548 XmbTextExtents (fontset, text, text_length, &ink, &logical);
552 *rbearing = ink.x + ink.width;
554 *width = logical.width;
558 *descent = ink.y + ink.height;
565 gdk_text_extents_wc (GdkFont *font,
566 const GdkWChar *text,
574 GdkFontPrivateX *private;
578 XRectangle ink, logical;
583 g_return_if_fail (font != NULL);
584 g_return_if_fail (text != NULL);
586 private = (GdkFontPrivateX*) font;
595 xfont = (XFontStruct *) private->xfont;
596 g_return_if_fail ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0));
598 text_8bit = g_new (gchar, text_length);
599 for (i=0; i<text_length; i++)
600 text_8bit[i] = text[i];
602 XTextExtents (xfont, text_8bit, text_length,
603 &direction, &font_ascent, &font_descent,
608 *lbearing = overall.lbearing;
610 *rbearing = overall.rbearing;
612 *width = overall.width;
614 *ascent = overall.ascent;
616 *descent = overall.descent;
619 case GDK_FONT_FONTSET:
620 fontset = (XFontSet) private->xfont;
622 if (sizeof(GdkWChar) == sizeof(wchar_t))
623 XwcTextExtents (fontset, (wchar_t *)text, text_length, &ink, &logical);
629 text_wchar = g_new (wchar_t, text_length);
630 for (i = 0; i < text_length; i++)
631 text_wchar[i] = text[i];
632 XwcTextExtents (fontset, text_wchar, text_length, &ink, &logical);
638 *rbearing = ink.x + ink.width;
640 *width = logical.width;
644 *descent = ink.y + ink.height;