/* GDK - The GIMP Drawing Kit * Copyright (C) 2000 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include "gdkkeysyms.h" #include "gdkkeysprivate.h" #include "gdkdisplay.h" #include "gdkdisplaymanagerprivate.h" /** * SECTION:keys * @Short_description: Functions for manipulating keyboard codes * @Title: Key Values * * Key values are the codes which are sent whenever a key is pressed or released. * They appear in the #GdkEventKey.keyval field of the * #GdkEventKey structure, which is passed to signal handlers for the * #GtkWidget::key-press-event and #GtkWidget::key-release-event signals. * The complete list of key values can be found in the * `gdk/gdkkeysyms.h` header file. * * Key values are regularly updated from the upstream X.org X11 implementation, * so new values are added regularly. They will be prefixed with GDK_KEY_ rather * than XF86XK_ or XK_ (for older symbols). * * Key values can be converted into a string representation using * gdk_keyval_name(). The reverse function, converting a string to a key value, * is provided by gdk_keyval_from_name(). * * The case of key values can be determined using gdk_keyval_is_upper() and * gdk_keyval_is_lower(). Key values can be converted to upper or lower case * using gdk_keyval_to_upper() and gdk_keyval_to_lower(). * * When it makes sense, key values can be converted to and from * Unicode characters with gdk_keyval_to_unicode() and gdk_unicode_to_keyval(). * * # Groups # {#key-group-explanation} * * One #GdkKeymap object exists for each user display. gdk_keymap_get_default() * returns the #GdkKeymap for the default display; to obtain keymaps for other * displays, use gdk_keymap_get_for_display(). A keymap * is a mapping from #GdkKeymapKey to key values. You can think of a #GdkKeymapKey * as a representation of a symbol printed on a physical keyboard key. That is, it * contains three pieces of information. First, it contains the hardware keycode; * this is an identifying number for a physical key. Second, it contains the * “level” of the key. The level indicates which symbol on the * key will be used, in a vertical direction. So on a standard US keyboard, the key * with the number “1“ on it also has the exclamation point (”!”) character on * it. The level indicates whether to use the “1” or the “!” symbol. The letter * keys are considered to have a lowercase letter at level 0, and an uppercase * letter at level 1, though only the uppercase letter is printed. Third, the * #GdkKeymapKey contains a group; groups are not used on standard US keyboards, * but are used in many other countries. On a keyboard with groups, there can be 3 * or 4 symbols printed on a single key. The group indicates movement in a * horizontal direction. Usually groups are used for two different languages. In * group 0, a key might have two English characters, and in group 1 it might have * two Hebrew characters. The Hebrew characters will be printed on the key next to * the English characters. * * In order to use a keymap to interpret a key event, it’s necessary to first * convert the keyboard state into an effective group and level. This is done via a * set of rules that varies widely according to type of keyboard and user * configuration. The function gdk_keymap_translate_keyboard_state() accepts a * keyboard state -- consisting of hardware keycode pressed, active modifiers, and * active group -- applies the appropriate rules, and returns the group/level to be * used to index the keymap, along with the modifiers which did not affect the * group and level. i.e. it returns “unconsumed modifiers.” The keyboard group may * differ from the effective group used for keymap lookups because some keys don't * have multiple groups - e.g. the Enter key is always in group 0 regardless of * keyboard state. * * Note that gdk_keymap_translate_keyboard_state() also returns the keyval, i.e. it * goes ahead and performs the keymap lookup in addition to telling you which * effective group/level values were used for the lookup. #GdkEventKey already * contains this keyval, however, so you don’t normally need to call * gdk_keymap_translate_keyboard_state() just to get the keyval. */ enum { DIRECTION_CHANGED, KEYS_CHANGED, STATE_CHANGED, LAST_SIGNAL }; static GdkModifierType gdk_keymap_real_get_modifier_mask (GdkKeymap *keymap, GdkModifierIntent intent); static guint signals[LAST_SIGNAL] = { 0 }; G_DEFINE_TYPE (GdkKeymap, gdk_keymap, G_TYPE_OBJECT) static void gdk_keymap_class_init (GdkKeymapClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); klass->get_modifier_mask = gdk_keymap_real_get_modifier_mask; /** * GdkKeymap::direction-changed: * @keymap: the object on which the signal is emitted * * The ::direction-changed signal gets emitted when the direction of * the keymap changes. * * Since: 2.0 */ signals[DIRECTION_CHANGED] = g_signal_new ("direction-changed", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GdkKeymapClass, direction_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * GdkKeymap::keys-changed: * @keymap: the object on which the signal is emitted * * The ::keys-changed signal is emitted when the mapping represented by * @keymap changes. * * Since: 2.2 */ signals[KEYS_CHANGED] = g_signal_new ("keys-changed", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GdkKeymapClass, keys_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * GdkKeymap::state-changed: * @keymap: the object on which the signal is emitted * * The ::state-changed signal is emitted when the state of the * keyboard changes, e.g when Caps Lock is turned on or off. * See gdk_keymap_get_caps_lock_state(). * * Since: 2.16 */ signals[STATE_CHANGED] = g_signal_new ("state_changed", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GdkKeymapClass, state_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); } static void gdk_keymap_init (GdkKeymap *keymap) { } /* Other key-handling stuff */ /** * gdk_keyval_to_upper: * @keyval: a key value. * * Converts a key value to upper case, if applicable. * * Returns: the upper case form of @keyval, or @keyval itself if it is already * in upper case or it is not subject to case conversion. */ guint gdk_keyval_to_upper (guint keyval) { guint result; gdk_keyval_convert_case (keyval, NULL, &result); return result; } /** * gdk_keyval_to_lower: * @keyval: a key value. * * Converts a key value to lower case, if applicable. * * Returns: the lower case form of @keyval, or @keyval itself if it is already * in lower case or it is not subject to case conversion. */ guint gdk_keyval_to_lower (guint keyval) { guint result; gdk_keyval_convert_case (keyval, &result, NULL); return result; } /** * gdk_keyval_is_upper: * @keyval: a key value. * * Returns %TRUE if the given key value is in upper case. * * Returns: %TRUE if @keyval is in upper case, or if @keyval is not subject to * case conversion. */ gboolean gdk_keyval_is_upper (guint keyval) { if (keyval) { guint upper_val = 0; gdk_keyval_convert_case (keyval, NULL, &upper_val); return upper_val == keyval; } return FALSE; } /** * gdk_keyval_is_lower: * @keyval: a key value. * * Returns %TRUE if the given key value is in lower case. * * Returns: %TRUE if @keyval is in lower case, or if @keyval is not * subject to case conversion. */ gboolean gdk_keyval_is_lower (guint keyval) { if (keyval) { guint lower_val = 0; gdk_keyval_convert_case (keyval, &lower_val, NULL); return lower_val == keyval; } return FALSE; } /** * gdk_keymap_get_default: * * Returns the #GdkKeymap attached to the default display. * * Returns: (transfer none): the #GdkKeymap attached to the default display. */ GdkKeymap* gdk_keymap_get_default (void) { return gdk_keymap_get_for_display (gdk_display_get_default ()); } /** * gdk_keymap_get_direction: * @keymap: a #GdkKeymap * * Returns the direction of effective layout of the keymap. * * Returns: %PANGO_DIRECTION_LTR or %PANGO_DIRECTION_RTL * if it can determine the direction. %PANGO_DIRECTION_NEUTRAL * otherwise. **/ PangoDirection gdk_keymap_get_direction (GdkKeymap *keymap) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), PANGO_DIRECTION_LTR); return GDK_KEYMAP_GET_CLASS (keymap)->get_direction (keymap); } /** * gdk_keymap_have_bidi_layouts: * @keymap: a #GdkKeymap * * Determines if keyboard layouts for both right-to-left and left-to-right * languages are in use. * * Returns: %TRUE if there are layouts in both directions, %FALSE otherwise * * Since: 2.12 **/ gboolean gdk_keymap_have_bidi_layouts (GdkKeymap *keymap) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE); return GDK_KEYMAP_GET_CLASS (keymap)->have_bidi_layouts (keymap); } /** * gdk_keymap_get_caps_lock_state: * @keymap: a #GdkKeymap * * Returns whether the Caps Lock modifer is locked. * * Returns: %TRUE if Caps Lock is on * * Since: 2.16 */ gboolean gdk_keymap_get_caps_lock_state (GdkKeymap *keymap) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE); return GDK_KEYMAP_GET_CLASS (keymap)->get_caps_lock_state (keymap); } /** * gdk_keymap_get_num_lock_state: * @keymap: a #GdkKeymap * * Returns whether the Num Lock modifer is locked. * * Returns: %TRUE if Num Lock is on * * Since: 3.0 */ gboolean gdk_keymap_get_num_lock_state (GdkKeymap *keymap) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE); return GDK_KEYMAP_GET_CLASS (keymap)->get_num_lock_state (keymap); } /** * gdk_keymap_get_modifier_state: * @keymap: a #GdkKeymap * * Returns the current modifier state. * * Returns: the current modifier state. * * Since: 3.4 */ guint gdk_keymap_get_modifier_state (GdkKeymap *keymap) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE); if (GDK_KEYMAP_GET_CLASS (keymap)->get_modifier_state) return GDK_KEYMAP_GET_CLASS (keymap)->get_modifier_state (keymap); return 0; } /** * gdk_keymap_get_entries_for_keyval: * @keymap: a #GdkKeymap * @keyval: a keyval, such as %GDK_KEY_a, %GDK_KEY_Up, %GDK_KEY_Return, etc. * @keys: (out) (array length=n_keys) (transfer full): return location * for an array of #GdkKeymapKey * @n_keys: return location for number of elements in returned array * * Obtains a list of keycode/group/level combinations that will * generate @keyval. Groups and levels are two kinds of keyboard mode; * in general, the level determines whether the top or bottom symbol * on a key is used, and the group determines whether the left or * right symbol is used. On US keyboards, the shift key changes the * keyboard level, and there are no groups. A group switch key might * convert a keyboard between Hebrew to English modes, for example. * #GdkEventKey contains a %group field that indicates the active * keyboard group. The level is computed from the modifier mask. * The returned array should be freed * with g_free(). * * Return value: %TRUE if keys were found and returned **/ gboolean gdk_keymap_get_entries_for_keyval (GdkKeymap *keymap, guint keyval, GdkKeymapKey **keys, gint *n_keys) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE); g_return_val_if_fail (keys != NULL, FALSE); g_return_val_if_fail (n_keys != NULL, FALSE); g_return_val_if_fail (keyval != 0, FALSE); return GDK_KEYMAP_GET_CLASS (keymap)->get_entries_for_keyval (keymap, keyval, keys, n_keys); } /** * gdk_keymap_get_entries_for_keycode: * @keymap: a #GdkKeymap * @hardware_keycode: a keycode * @keys: (out) (array length=n_entries) (transfer full): return * location for array of #GdkKeymapKey, or %NULL * @keyvals: (out) (array length=n_entries) (transfer full): return * location for array of keyvals, or %NULL * @n_entries: length of @keys and @keyvals * * Returns the keyvals bound to @hardware_keycode. * The Nth #GdkKeymapKey in @keys is bound to the Nth * keyval in @keyvals. Free the returned arrays with g_free(). * When a keycode is pressed by the user, the keyval from * this list of entries is selected by considering the effective * keyboard group and level. See gdk_keymap_translate_keyboard_state(). * * Returns: %TRUE if there were any entries **/ gboolean gdk_keymap_get_entries_for_keycode (GdkKeymap *keymap, guint hardware_keycode, GdkKeymapKey **keys, guint **keyvals, gint *n_entries) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE); g_return_val_if_fail (n_entries != NULL, FALSE); return GDK_KEYMAP_GET_CLASS (keymap)->get_entries_for_keycode (keymap, hardware_keycode, keys, keyvals, n_entries); } /** * gdk_keymap_lookup_key: * @keymap: a #GdkKeymap * @key: a #GdkKeymapKey with keycode, group, and level initialized * * Looks up the keyval mapped to a keycode/group/level triplet. * If no keyval is bound to @key, returns 0. For normal user input, * you want to use gdk_keymap_translate_keyboard_state() instead of * this function, since the effective group/level may not be * the same as the current keyboard state. * * Return value: a keyval, or 0 if none was mapped to the given @key **/ guint gdk_keymap_lookup_key (GdkKeymap *keymap, const GdkKeymapKey *key) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), 0); g_return_val_if_fail (key != NULL, 0); return GDK_KEYMAP_GET_CLASS (keymap)->lookup_key (keymap, key); } /** * gdk_keymap_translate_keyboard_state: * @keymap: a #GdkKeymap * @hardware_keycode: a keycode * @state: a modifier state * @group: active keyboard group * @keyval: (out) (allow-none): return location for keyval, or %NULL * @effective_group: (out) (allow-none): return location for effective * group, or %NULL * @level: (out) (allow-none): return location for level, or %NULL * @consumed_modifiers: (out) (allow-none): return location for modifiers * that were used to determine the group or level, or %NULL * * Translates the contents of a #GdkEventKey into a keyval, effective * group, and level. Modifiers that affected the translation and * are thus unavailable for application use are returned in * @consumed_modifiers. * See [Groups][key-group-explanation] for an explanation of * groups and levels. The @effective_group is the group that was * actually used for the translation; some keys such as Enter are not * affected by the active keyboard group. The @level is derived from * @state. For convenience, #GdkEventKey already contains the translated * keyval, so this function isn’t as useful as you might think. * * @consumed_modifiers gives modifiers that should be masked out * from @state when comparing this key press to a hot key. For * instance, on a US keyboard, the `plus` * symbol is shifted, so when comparing a key press to a * `<Control>plus` accelerator <Shift> should * be masked out. * * |[ * /* We want to ignore irrelevant modifiers like ScrollLock */; * #define ALL_ACCELS_MASK (GDK_CONTROL_MASK | GDK_SHIFT_MASK | GDK_MOD1_MASK) * gdk_keymap_translate_keyboard_state (keymap, event->hardware_keycode, * event->state, event->group, * &keyval, NULL, NULL, &consumed); * if (keyval == GDK_PLUS && * (event->state & ~consumed & ALL_ACCELS_MASK) == GDK_CONTROL_MASK) * /* Control was pressed */ * ]| * * An older interpretation @consumed_modifiers was that it contained * all modifiers that might affect the translation of the key; * this allowed accelerators to be stored with irrelevant consumed * modifiers, by doing: * |[ * /* XXX Don’t do this XXX */ * if (keyval == accel_keyval && * (event->state & ~consumed & ALL_ACCELS_MASK) == (accel_mods & ~consumed)) * /* Accelerator was pressed */ * ]| * * However, this did not work if multi-modifier combinations were * used in the keymap, since, for instance, `<Control>` * would be masked out even if only `<Control><Alt>` * was used in the keymap. To support this usage as well as well as * possible, all single modifier combinations * that could affect the key for any combination of modifiers will * be returned in @consumed_modifiers; multi-modifier combinations * are returned only when actually found in @state. When you store * accelerators, you should always store them with consumed modifiers * removed. Store `<Control>plus`, * not `<Control><Shift>plus`, * * Return value: %TRUE if there was a keyval bound to the keycode/state/group **/ gboolean gdk_keymap_translate_keyboard_state (GdkKeymap *keymap, guint hardware_keycode, GdkModifierType state, gint group, guint *keyval, gint *effective_group, gint *level, GdkModifierType *consumed_modifiers) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE); return GDK_KEYMAP_GET_CLASS (keymap)->translate_keyboard_state (keymap, hardware_keycode, state, group, keyval, effective_group, level, consumed_modifiers); } /** * gdk_keymap_add_virtual_modifiers: * @keymap: a #GdkKeymap * @state: (inout): pointer to the modifier mask to change * * Maps the non-virtual modifiers (i.e Mod2, Mod3, ...) which are set * in @state to the virtual modifiers (i.e. Super, Hyper and Meta) and * set the corresponding bits in @state. * * GDK already does this before delivering key events, but for * compatibility reasons, it only sets the first virtual modifier * it finds, whereas this function sets all matching virtual modifiers. * * This function is useful when matching key events against * accelerators. * * Since: 2.20 */ void gdk_keymap_add_virtual_modifiers (GdkKeymap *keymap, GdkModifierType *state) { g_return_if_fail (GDK_IS_KEYMAP (keymap)); GDK_KEYMAP_GET_CLASS (keymap)->add_virtual_modifiers (keymap, state); } /** * gdk_keymap_map_virtual_modifiers: * @keymap: a #GdkKeymap * @state: (inout): pointer to the modifier state to map * * Maps the virtual modifiers (i.e. Super, Hyper and Meta) which * are set in @state to their non-virtual counterparts (i.e. Mod2, * Mod3,...) and set the corresponding bits in @state. * * This function is useful when matching key events against * accelerators. * * Returns: %TRUE if no virtual modifiers were mapped to the * same non-virtual modifier. Note that %FALSE is also returned * if a virtual modifier is mapped to a non-virtual modifier that * was already set in @state. * * Since: 2.20 */ gboolean gdk_keymap_map_virtual_modifiers (GdkKeymap *keymap, GdkModifierType *state) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE); return GDK_KEYMAP_GET_CLASS(keymap)->map_virtual_modifiers (keymap, state); } static GdkModifierType gdk_keymap_real_get_modifier_mask (GdkKeymap *keymap, GdkModifierIntent intent) { switch (intent) { case GDK_MODIFIER_INTENT_PRIMARY_ACCELERATOR: return GDK_CONTROL_MASK; case GDK_MODIFIER_INTENT_CONTEXT_MENU: return 0; case GDK_MODIFIER_INTENT_EXTEND_SELECTION: return GDK_SHIFT_MASK; case GDK_MODIFIER_INTENT_MODIFY_SELECTION: return GDK_CONTROL_MASK; case GDK_MODIFIER_INTENT_NO_TEXT_INPUT: return GDK_MOD1_MASK | GDK_CONTROL_MASK; case GDK_MODIFIER_INTENT_SHIFT_GROUP: return 0; default: g_return_val_if_reached (0); } } /** * gdk_keymap_get_modifier_mask: * @keymap: a #GdkKeymap * @intent: the use case for the modifier mask * * Returns the modifier mask the @keymap’s windowing system backend * uses for a particular purpose. * * Note that this function always returns real hardware modifiers, not * virtual ones (e.g. it will return #GDK_MOD1_MASK rather than * #GDK_META_MASK if the backend maps MOD1 to META), so there are use * cases where the return value of this function has to be transformed * by gdk_keymap_add_virtual_modifiers() in order to contain the * expected result. * * Returns: the modifier mask used for @intent. * * Since: 3.4 **/ GdkModifierType gdk_keymap_get_modifier_mask (GdkKeymap *keymap, GdkModifierIntent intent) { g_return_val_if_fail (GDK_IS_KEYMAP (keymap), 0); return GDK_KEYMAP_GET_CLASS (keymap)->get_modifier_mask (keymap, intent); } #include "gdkkeynames.c" /** * gdk_keyval_name: * @keyval: a key value * * Converts a key value into a symbolic name. * * The names are the same as those in the * `gdk/gdkkeysyms.h` header file * but without the leading “GDK_KEY_”. * * Return value: (transfer none): a string containing the name of the key, * or %NULL if @keyval is not a valid key. The string should not be * modified. */ gchar * gdk_keyval_name (guint keyval) { return _gdk_keyval_name (keyval); } /** * gdk_keyval_from_name: * @keyval_name: a key name * * Converts a key name to a key value. * * The names are the same as those in the * `gdk/gdkkeysyms.h` header file * but without the leading “GDK_KEY_”. * * Returns: the corresponding key value, or %GDK_KEY_VoidSymbol * if the key name is not a valid key */ guint gdk_keyval_from_name (const gchar *keyval_name) { return _gdk_keyval_from_name (keyval_name); } /** * gdk_keyval_convert_case: * @symbol: a keyval * @lower: (out): return location for lowercase version of @symbol * @upper: (out): return location for uppercase version of @symbol * * Obtains the upper- and lower-case versions of the keyval @symbol. * Examples of keyvals are #GDK_KEY_a, #GDK_KEY_Enter, #GDK_KEY_F1, etc. */ void gdk_keyval_convert_case (guint symbol, guint *lower, guint *upper) { guint xlower, xupper; xlower = symbol; xupper = symbol; /* Check for directly encoded 24-bit UCS characters: */ if ((symbol & 0xff000000) == 0x01000000) { if (lower) *lower = gdk_unicode_to_keyval (g_unichar_tolower (symbol & 0x00ffffff)); if (upper) *upper = gdk_unicode_to_keyval (g_unichar_toupper (symbol & 0x00ffffff)); return; } switch (symbol >> 8) { case 0: /* Latin 1 */ if ((symbol >= GDK_KEY_A) && (symbol <= GDK_KEY_Z)) xlower += (GDK_KEY_a - GDK_KEY_A); else if ((symbol >= GDK_KEY_a) && (symbol <= GDK_KEY_z)) xupper -= (GDK_KEY_a - GDK_KEY_A); else if ((symbol >= GDK_KEY_Agrave) && (symbol <= GDK_KEY_Odiaeresis)) xlower += (GDK_KEY_agrave - GDK_KEY_Agrave); else if ((symbol >= GDK_KEY_agrave) && (symbol <= GDK_KEY_odiaeresis)) xupper -= (GDK_KEY_agrave - GDK_KEY_Agrave); else if ((symbol >= GDK_KEY_Ooblique) && (symbol <= GDK_KEY_Thorn)) xlower += (GDK_KEY_oslash - GDK_KEY_Ooblique); else if ((symbol >= GDK_KEY_oslash) && (symbol <= GDK_KEY_thorn)) xupper -= (GDK_KEY_oslash - GDK_KEY_Ooblique); break; case 1: /* Latin 2 */ /* Assume the KeySym is a legal value (ignore discontinuities) */ if (symbol == GDK_KEY_Aogonek) xlower = GDK_KEY_aogonek; else if (symbol >= GDK_KEY_Lstroke && symbol <= GDK_KEY_Sacute) xlower += (GDK_KEY_lstroke - GDK_KEY_Lstroke); else if (symbol >= GDK_KEY_Scaron && symbol <= GDK_KEY_Zacute) xlower += (GDK_KEY_scaron - GDK_KEY_Scaron); else if (symbol >= GDK_KEY_Zcaron && symbol <= GDK_KEY_Zabovedot) xlower += (GDK_KEY_zcaron - GDK_KEY_Zcaron); else if (symbol == GDK_KEY_aogonek) xupper = GDK_KEY_Aogonek; else if (symbol >= GDK_KEY_lstroke && symbol <= GDK_KEY_sacute) xupper -= (GDK_KEY_lstroke - GDK_KEY_Lstroke); else if (symbol >= GDK_KEY_scaron && symbol <= GDK_KEY_zacute) xupper -= (GDK_KEY_scaron - GDK_KEY_Scaron); else if (symbol >= GDK_KEY_zcaron && symbol <= GDK_KEY_zabovedot) xupper -= (GDK_KEY_zcaron - GDK_KEY_Zcaron); else if (symbol >= GDK_KEY_Racute && symbol <= GDK_KEY_Tcedilla) xlower += (GDK_KEY_racute - GDK_KEY_Racute); else if (symbol >= GDK_KEY_racute && symbol <= GDK_KEY_tcedilla) xupper -= (GDK_KEY_racute - GDK_KEY_Racute); break; case 2: /* Latin 3 */ /* Assume the KeySym is a legal value (ignore discontinuities) */ if (symbol >= GDK_KEY_Hstroke && symbol <= GDK_KEY_Hcircumflex) xlower += (GDK_KEY_hstroke - GDK_KEY_Hstroke); else if (symbol >= GDK_KEY_Gbreve && symbol <= GDK_KEY_Jcircumflex) xlower += (GDK_KEY_gbreve - GDK_KEY_Gbreve); else if (symbol >= GDK_KEY_hstroke && symbol <= GDK_KEY_hcircumflex) xupper -= (GDK_KEY_hstroke - GDK_KEY_Hstroke); else if (symbol >= GDK_KEY_gbreve && symbol <= GDK_KEY_jcircumflex) xupper -= (GDK_KEY_gbreve - GDK_KEY_Gbreve); else if (symbol >= GDK_KEY_Cabovedot && symbol <= GDK_KEY_Scircumflex) xlower += (GDK_KEY_cabovedot - GDK_KEY_Cabovedot); else if (symbol >= GDK_KEY_cabovedot && symbol <= GDK_KEY_scircumflex) xupper -= (GDK_KEY_cabovedot - GDK_KEY_Cabovedot); break; case 3: /* Latin 4 */ /* Assume the KeySym is a legal value (ignore discontinuities) */ if (symbol >= GDK_KEY_Rcedilla && symbol <= GDK_KEY_Tslash) xlower += (GDK_KEY_rcedilla - GDK_KEY_Rcedilla); else if (symbol >= GDK_KEY_rcedilla && symbol <= GDK_KEY_tslash) xupper -= (GDK_KEY_rcedilla - GDK_KEY_Rcedilla); else if (symbol == GDK_KEY_ENG) xlower = GDK_KEY_eng; else if (symbol == GDK_KEY_eng) xupper = GDK_KEY_ENG; else if (symbol >= GDK_KEY_Amacron && symbol <= GDK_KEY_Umacron) xlower += (GDK_KEY_amacron - GDK_KEY_Amacron); else if (symbol >= GDK_KEY_amacron && symbol <= GDK_KEY_umacron) xupper -= (GDK_KEY_amacron - GDK_KEY_Amacron); break; case 6: /* Cyrillic */ /* Assume the KeySym is a legal value (ignore discontinuities) */ if (symbol >= GDK_KEY_Serbian_DJE && symbol <= GDK_KEY_Serbian_DZE) xlower -= (GDK_KEY_Serbian_DJE - GDK_KEY_Serbian_dje); else if (symbol >= GDK_KEY_Serbian_dje && symbol <= GDK_KEY_Serbian_dze) xupper += (GDK_KEY_Serbian_DJE - GDK_KEY_Serbian_dje); else if (symbol >= GDK_KEY_Cyrillic_YU && symbol <= GDK_KEY_Cyrillic_HARDSIGN) xlower -= (GDK_KEY_Cyrillic_YU - GDK_KEY_Cyrillic_yu); else if (symbol >= GDK_KEY_Cyrillic_yu && symbol <= GDK_KEY_Cyrillic_hardsign) xupper += (GDK_KEY_Cyrillic_YU - GDK_KEY_Cyrillic_yu); break; case 7: /* Greek */ /* Assume the KeySym is a legal value (ignore discontinuities) */ if (symbol >= GDK_KEY_Greek_ALPHAaccent && symbol <= GDK_KEY_Greek_OMEGAaccent) xlower += (GDK_KEY_Greek_alphaaccent - GDK_KEY_Greek_ALPHAaccent); else if (symbol >= GDK_KEY_Greek_alphaaccent && symbol <= GDK_KEY_Greek_omegaaccent && symbol != GDK_KEY_Greek_iotaaccentdieresis && symbol != GDK_KEY_Greek_upsilonaccentdieresis) xupper -= (GDK_KEY_Greek_alphaaccent - GDK_KEY_Greek_ALPHAaccent); else if (symbol >= GDK_KEY_Greek_ALPHA && symbol <= GDK_KEY_Greek_OMEGA) xlower += (GDK_KEY_Greek_alpha - GDK_KEY_Greek_ALPHA); else if (symbol >= GDK_KEY_Greek_alpha && symbol <= GDK_KEY_Greek_omega && symbol != GDK_KEY_Greek_finalsmallsigma) xupper -= (GDK_KEY_Greek_alpha - GDK_KEY_Greek_ALPHA); break; } if (lower) *lower = xlower; if (upper) *upper = xupper; }