1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 2000 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser 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 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser 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 1997-2000. 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/.
36 static void gdk_keymap_class_init (GdkKeymapClass *klass);
38 static guint signals[LAST_SIGNAL] = { 0 };
41 gdk_keymap_get_type (void)
43 static GType object_type = 0;
47 static const GTypeInfo object_info =
49 sizeof (GdkKeymapClass),
51 (GBaseFinalizeFunc) NULL,
52 (GClassInitFunc) gdk_keymap_class_init,
53 NULL, /* class_finalize */
54 NULL, /* class_data */
57 (GInstanceInitFunc) NULL,
60 object_type = g_type_register_static (G_TYPE_OBJECT,
69 gdk_keymap_class_init (GdkKeymapClass *klass)
71 GObjectClass *object_class = G_OBJECT_CLASS (klass);
73 signals[DIRECTION_CHANGED] =
74 g_signal_new ("direction_changed",
75 G_OBJECT_CLASS_TYPE (object_class),
77 G_STRUCT_OFFSET (GdkKeymapClass, direction_changed),
79 g_cclosure_marshal_VOID__VOID,
84 /* Other key-handling stuff
87 #ifndef HAVE_XCONVERTCASE
88 #include "gdkkeysyms.h"
90 /* compatibility function from X11R6.3, since XConvertCase is not
94 * gdk_keyval_convert_case:
96 * @lower: return location for lowercase version of @symbol
97 * @upper: return location for uppercase version of @symbol
99 * Obtains the upper- and lower-case versions of the keyval @symbol.
100 * Examples of keyvals are #GDK_a, #GDK_Enter, #GDK_F1, etc.
104 gdk_keyval_convert_case (guint symbol,
108 guint xlower = symbol;
109 guint xupper = symbol;
111 /* Check for directly encoded 24-bit UCS characters: */
112 if ((symbol & 0xff000000) == 0x01000000)
115 *lower = gdk_unicode_to_keyval (g_unichar_tolower (symbol & 0x00ffffff));
117 *upper = gdk_unicode_to_keyval (g_unichar_toupper (symbol & 0x00ffffff));
123 case 0: /* Latin 1 */
124 if ((symbol >= GDK_A) && (symbol <= GDK_Z))
125 xlower += (GDK_a - GDK_A);
126 else if ((symbol >= GDK_a) && (symbol <= GDK_z))
127 xupper -= (GDK_a - GDK_A);
128 else if ((symbol >= GDK_Agrave) && (symbol <= GDK_Odiaeresis))
129 xlower += (GDK_agrave - GDK_Agrave);
130 else if ((symbol >= GDK_agrave) && (symbol <= GDK_odiaeresis))
131 xupper -= (GDK_agrave - GDK_Agrave);
132 else if ((symbol >= GDK_Ooblique) && (symbol <= GDK_Thorn))
133 xlower += (GDK_oslash - GDK_Ooblique);
134 else if ((symbol >= GDK_oslash) && (symbol <= GDK_thorn))
135 xupper -= (GDK_oslash - GDK_Ooblique);
138 case 1: /* Latin 2 */
139 /* Assume the KeySym is a legal value (ignore discontinuities) */
140 if (symbol == GDK_Aogonek)
141 xlower = GDK_aogonek;
142 else if (symbol >= GDK_Lstroke && symbol <= GDK_Sacute)
143 xlower += (GDK_lstroke - GDK_Lstroke);
144 else if (symbol >= GDK_Scaron && symbol <= GDK_Zacute)
145 xlower += (GDK_scaron - GDK_Scaron);
146 else if (symbol >= GDK_Zcaron && symbol <= GDK_Zabovedot)
147 xlower += (GDK_zcaron - GDK_Zcaron);
148 else if (symbol == GDK_aogonek)
149 xupper = GDK_Aogonek;
150 else if (symbol >= GDK_lstroke && symbol <= GDK_sacute)
151 xupper -= (GDK_lstroke - GDK_Lstroke);
152 else if (symbol >= GDK_scaron && symbol <= GDK_zacute)
153 xupper -= (GDK_scaron - GDK_Scaron);
154 else if (symbol >= GDK_zcaron && symbol <= GDK_zabovedot)
155 xupper -= (GDK_zcaron - GDK_Zcaron);
156 else if (symbol >= GDK_Racute && symbol <= GDK_Tcedilla)
157 xlower += (GDK_racute - GDK_Racute);
158 else if (symbol >= GDK_racute && symbol <= GDK_tcedilla)
159 xupper -= (GDK_racute - GDK_Racute);
162 case 2: /* Latin 3 */
163 /* Assume the KeySym is a legal value (ignore discontinuities) */
164 if (symbol >= GDK_Hstroke && symbol <= GDK_Hcircumflex)
165 xlower += (GDK_hstroke - GDK_Hstroke);
166 else if (symbol >= GDK_Gbreve && symbol <= GDK_Jcircumflex)
167 xlower += (GDK_gbreve - GDK_Gbreve);
168 else if (symbol >= GDK_hstroke && symbol <= GDK_hcircumflex)
169 xupper -= (GDK_hstroke - GDK_Hstroke);
170 else if (symbol >= GDK_gbreve && symbol <= GDK_jcircumflex)
171 xupper -= (GDK_gbreve - GDK_Gbreve);
172 else if (symbol >= GDK_Cabovedot && symbol <= GDK_Scircumflex)
173 xlower += (GDK_cabovedot - GDK_Cabovedot);
174 else if (symbol >= GDK_cabovedot && symbol <= GDK_scircumflex)
175 xupper -= (GDK_cabovedot - GDK_Cabovedot);
178 case 3: /* Latin 4 */
179 /* Assume the KeySym is a legal value (ignore discontinuities) */
180 if (symbol >= GDK_Rcedilla && symbol <= GDK_Tslash)
181 xlower += (GDK_rcedilla - GDK_Rcedilla);
182 else if (symbol >= GDK_rcedilla && symbol <= GDK_tslash)
183 xupper -= (GDK_rcedilla - GDK_Rcedilla);
184 else if (symbol == GDK_ENG)
186 else if (symbol == GDK_eng)
188 else if (symbol >= GDK_Amacron && symbol <= GDK_Umacron)
189 xlower += (GDK_amacron - GDK_Amacron);
190 else if (symbol >= GDK_amacron && symbol <= GDK_umacron)
191 xupper -= (GDK_amacron - GDK_Amacron);
194 case 6: /* Cyrillic */
195 /* Assume the KeySym is a legal value (ignore discontinuities) */
196 if (symbol >= GDK_Serbian_DJE && symbol <= GDK_Serbian_DZE)
197 xlower -= (GDK_Serbian_DJE - GDK_Serbian_dje);
198 else if (symbol >= GDK_Serbian_dje && symbol <= GDK_Serbian_dze)
199 xupper += (GDK_Serbian_DJE - GDK_Serbian_dje);
200 else if (symbol >= GDK_Cyrillic_YU && symbol <= GDK_Cyrillic_HARDSIGN)
201 xlower -= (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
202 else if (symbol >= GDK_Cyrillic_yu && symbol <= GDK_Cyrillic_hardsign)
203 xupper += (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
207 /* Assume the KeySym is a legal value (ignore discontinuities) */
208 if (symbol >= GDK_Greek_ALPHAaccent && symbol <= GDK_Greek_OMEGAaccent)
209 xlower += (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
210 else if (symbol >= GDK_Greek_alphaaccent && symbol <= GDK_Greek_omegaaccent &&
211 symbol != GDK_Greek_iotaaccentdieresis &&
212 symbol != GDK_Greek_upsilonaccentdieresis)
213 xupper -= (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
214 else if (symbol >= GDK_Greek_ALPHA && symbol <= GDK_Greek_OMEGA)
215 xlower += (GDK_Greek_alpha - GDK_Greek_ALPHA);
216 else if (symbol >= GDK_Greek_alpha && symbol <= GDK_Greek_omega &&
217 symbol != GDK_Greek_finalsmallsigma)
218 xupper -= (GDK_Greek_alpha - GDK_Greek_ALPHA);
230 gdk_keyval_to_upper (guint keyval)
234 gdk_keyval_convert_case (keyval, NULL, &result);
240 gdk_keyval_to_lower (guint keyval)
244 gdk_keyval_convert_case (keyval, &result, NULL);
250 gdk_keyval_is_upper (guint keyval)
256 gdk_keyval_convert_case (keyval, NULL, &upper_val);
257 return upper_val == keyval;
263 gdk_keyval_is_lower (guint keyval)
269 gdk_keyval_convert_case (keyval, &lower_val, NULL);
270 return lower_val == keyval;