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" },
153 { "UTF-8", "iso8859-1" }
160 g_get_charset (&codeset);
162 for (i=0; i < G_N_ELEMENTS (charset_map); i++)
163 if (strcmp (charset_map[i][0], codeset) == 0)
165 result = charset_map[i][1];
170 return g_strdup (result);
172 return g_strdup ("iso-8859-1");
176 * gdk_font_from_description:
177 * @font_desc: a #PangoFontDescription.
179 * Load a #GdkFont based on a Pango font description. This font will
180 * only be an approximation of the Pango font, and
181 * internationalization will not be handled correctly. This function
182 * should only be used for legacy code that cannot be easily converted
183 * to use Pango. Using Pango directly will produce better results.
185 * Return value: the newly loaded font, or %NULL if the font
189 gdk_font_from_description (PangoFontDescription *font_desc)
191 PangoFontMap *font_map;
193 GdkFont *result = NULL;
195 g_return_val_if_fail (font_desc != NULL, NULL);
197 font_map = pango_x_font_map_for_display (GDK_DISPLAY ());
198 font = pango_font_map_load_font (font_map, font_desc);
202 gchar *charset = gdk_font_charset_for_locale ();
204 PangoXSubfont *subfont_ids;
205 gint *subfont_charsets;
207 n_subfonts = pango_x_list_subfonts (font, &charset, 1,
208 &subfont_ids, &subfont_charsets);
211 gchar *xlfd = pango_x_font_subfont_xlfd (font, subfont_ids[0]);
212 result = gdk_font_load (xlfd);
217 g_free (subfont_ids);
218 g_free (subfont_charsets);
221 g_object_unref (G_OBJECT (font));
228 gdk_fontset_load (const gchar *fontset_name)
231 GdkFontPrivateX *private;
233 gint missing_charset_count;
234 gchar **missing_charset_list;
237 font = gdk_font_hash_lookup (GDK_FONT_FONTSET, fontset_name);
241 private = g_new (GdkFontPrivateX, 1);
242 font = (GdkFont*) private;
244 private->xdisplay = gdk_display;
245 fontset = XCreateFontSet (gdk_display, fontset_name,
246 &missing_charset_list, &missing_charset_count,
249 if (missing_charset_count)
252 g_warning ("Missing charsets in FontSet creation\n");
253 for (i=0;i<missing_charset_count;i++)
254 g_warning (" %s\n", missing_charset_list[i]);
255 XFreeStringList (missing_charset_list);
258 private->base.ref_count = 1;
269 XFontStruct **font_structs;
272 private->xfont = fontset;
273 font->type = GDK_FONT_FONTSET;
274 num_fonts = XFontsOfFontSet (fontset, &font_structs, &font_names);
276 font->ascent = font->descent = 0;
278 for (i = 0; i < num_fonts; i++)
280 font->ascent = MAX (font->ascent, font_structs[i]->ascent);
281 font->descent = MAX (font->descent, font_structs[i]->descent);
284 private->names = NULL;
285 gdk_font_hash_insert (GDK_FONT_FONTSET, font, fontset_name);
292 _gdk_font_destroy (GdkFont *font)
294 GdkFontPrivateX *private = (GdkFontPrivateX *)font;
296 gdk_font_hash_remove (font->type, font);
301 gdk_xid_table_remove (((XFontStruct *) private->xfont)->fid);
302 XFreeFont (private->xdisplay, (XFontStruct *) private->xfont);
304 case GDK_FONT_FONTSET:
305 XFreeFontSet (private->xdisplay, (XFontSet) private->xfont);
308 g_error ("unknown font type.");
315 _gdk_font_strlen (GdkFont *font,
318 GdkFontPrivateX *font_private;
321 g_return_val_if_fail (font != NULL, -1);
322 g_return_val_if_fail (str != NULL, -1);
324 font_private = (GdkFontPrivateX*) font;
326 if (font->type == GDK_FONT_FONT)
328 XFontStruct *xfont = (XFontStruct *) font_private->xfont;
329 if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
331 length = strlen (str);
335 guint16 *string_2b = (guint16 *)str;
337 while (*(string_2b++))
341 else if (font->type == GDK_FONT_FONTSET)
343 length = strlen (str);
346 g_error("undefined font type\n");
352 gdk_font_id (const GdkFont *font)
354 const GdkFontPrivateX *font_private;
356 g_return_val_if_fail (font != NULL, 0);
358 font_private = (const GdkFontPrivateX*) font;
360 if (font->type == GDK_FONT_FONT)
362 return ((XFontStruct *) font_private->xfont)->fid;
371 gdk_font_equal (const GdkFont *fonta,
372 const GdkFont *fontb)
374 const GdkFontPrivateX *privatea;
375 const GdkFontPrivateX *privateb;
377 g_return_val_if_fail (fonta != NULL, FALSE);
378 g_return_val_if_fail (fontb != NULL, FALSE);
380 privatea = (const GdkFontPrivateX*) fonta;
381 privateb = (const GdkFontPrivateX*) fontb;
383 if (fonta->type == GDK_FONT_FONT && fontb->type == GDK_FONT_FONT)
385 return (((XFontStruct *) privatea->xfont)->fid ==
386 ((XFontStruct *) privateb->xfont)->fid);
388 else if (fonta->type == GDK_FONT_FONTSET && fontb->type == GDK_FONT_FONTSET)
390 gchar *namea, *nameb;
392 namea = XBaseFontNameListOfFontSet((XFontSet) privatea->xfont);
393 nameb = XBaseFontNameListOfFontSet((XFontSet) privateb->xfont);
395 return (strcmp(namea, nameb) == 0);
398 /* fontset != font */
403 gdk_text_width (GdkFont *font,
407 GdkFontPrivateX *private;
412 g_return_val_if_fail (font != NULL, -1);
413 g_return_val_if_fail (text != NULL, -1);
415 private = (GdkFontPrivateX*) font;
420 xfont = (XFontStruct *) private->xfont;
421 if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
423 width = XTextWidth (xfont, text, text_length);
427 width = XTextWidth16 (xfont, (XChar2b *) text, text_length / 2);
430 case GDK_FONT_FONTSET:
431 fontset = (XFontSet) private->xfont;
432 width = XmbTextEscapement (fontset, text, text_length);
441 gdk_text_width_wc (GdkFont *font,
442 const GdkWChar *text,
445 GdkFontPrivateX *private;
450 g_return_val_if_fail (font != NULL, -1);
451 g_return_val_if_fail (text != NULL, -1);
453 private = (GdkFontPrivateX*) font;
458 xfont = (XFontStruct *) private->xfont;
459 if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
463 text_8bit = g_new (gchar, text_length);
464 for (i=0; i<text_length; i++) text_8bit[i] = text[i];
465 width = XTextWidth (xfont, text_8bit, text_length);
473 case GDK_FONT_FONTSET:
474 if (sizeof(GdkWChar) == sizeof(wchar_t))
476 fontset = (XFontSet) private->xfont;
477 width = XwcTextEscapement (fontset, (wchar_t *)text, text_length);
483 fontset = (XFontSet) private->xfont;
484 text_wchar = g_new(wchar_t, text_length);
485 for (i=0; i<text_length; i++) text_wchar[i] = text[i];
486 width = XwcTextEscapement (fontset, text_wchar, text_length);
497 gdk_text_extents (GdkFont *font,
506 GdkFontPrivateX *private;
510 XRectangle ink, logical;
515 g_return_if_fail (font != NULL);
516 g_return_if_fail (text != NULL);
518 private = (GdkFontPrivateX*) font;
523 xfont = (XFontStruct *) private->xfont;
524 if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
526 XTextExtents (xfont, text, text_length,
527 &direction, &font_ascent, &font_descent,
532 XTextExtents16 (xfont, (XChar2b *) text, text_length / 2,
533 &direction, &font_ascent, &font_descent,
537 *lbearing = overall.lbearing;
539 *rbearing = overall.rbearing;
541 *width = overall.width;
543 *ascent = overall.ascent;
545 *descent = overall.descent;
547 case GDK_FONT_FONTSET:
548 fontset = (XFontSet) private->xfont;
549 XmbTextExtents (fontset, text, text_length, &ink, &logical);
553 *rbearing = ink.x + ink.width;
555 *width = logical.width;
559 *descent = ink.y + ink.height;
566 gdk_text_extents_wc (GdkFont *font,
567 const GdkWChar *text,
575 GdkFontPrivateX *private;
579 XRectangle ink, logical;
584 g_return_if_fail (font != NULL);
585 g_return_if_fail (text != NULL);
587 private = (GdkFontPrivateX*) font;
596 xfont = (XFontStruct *) private->xfont;
597 g_return_if_fail ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0));
599 text_8bit = g_new (gchar, text_length);
600 for (i=0; i<text_length; i++)
601 text_8bit[i] = text[i];
603 XTextExtents (xfont, text_8bit, text_length,
604 &direction, &font_ascent, &font_descent,
609 *lbearing = overall.lbearing;
611 *rbearing = overall.rbearing;
613 *width = overall.width;
615 *ascent = overall.ascent;
617 *descent = overall.descent;
620 case GDK_FONT_FONTSET:
621 fontset = (XFontSet) private->xfont;
623 if (sizeof(GdkWChar) == sizeof(wchar_t))
624 XwcTextExtents (fontset, (wchar_t *)text, text_length, &ink, &logical);
630 text_wchar = g_new (wchar_t, text_length);
631 for (i = 0; i < text_length; i++)
632 text_wchar[i] = text[i];
633 XwcTextExtents (fontset, text_wchar, text_length, &ink, &logical);
639 *rbearing = ink.x + ink.width;
641 *width = logical.width;
645 *descent = ink.y + ink.height;