gtk/gdk/gdkkeys.c
Matthias Clasen fff2b3c710 gdk: Clean up docs syntax
Replace leftover gtk-doc syntax (#Type) with backquotes.
2021-05-22 17:25:26 -04:00

815 lines
26 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* 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 <http://www.gnu.org/licenses/>.
*/
/*
* 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"
enum {
PROP_0,
PROP_DISPLAY,
LAST_PROP
};
enum {
DIRECTION_CHANGED,
KEYS_CHANGED,
STATE_CHANGED,
LAST_SIGNAL
};
static GParamSpec *props[LAST_PROP] = { NULL, };
static guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (GdkKeymap, gdk_keymap, G_TYPE_OBJECT)
static void
gdk_keymap_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GdkKeymap *keymap = GDK_KEYMAP (object);
switch (prop_id)
{
case PROP_DISPLAY:
g_value_set_object (value, keymap->display);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gdk_keymap_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdkKeymap *keymap = GDK_KEYMAP (object);
switch (prop_id)
{
case PROP_DISPLAY:
keymap->display = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gdk_keymap_finalize (GObject *object)
{
GdkKeymap *keymap = GDK_KEYMAP (object);
g_array_free (keymap->cached_keys, TRUE);
g_hash_table_unref (keymap->cache);
G_OBJECT_CLASS (gdk_keymap_parent_class)->finalize (object);
}
static void
gdk_keymap_keys_changed (GdkKeymap *keymap)
{
GdkKeymapKey key;
g_array_set_size (keymap->cached_keys, 0);
key.keycode = 0;
key.group = 0;
key.level = 0;
g_array_append_val (keymap->cached_keys, key);
g_hash_table_remove_all (keymap->cache);
}
static void
gdk_keymap_class_init (GdkKeymapClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gdk_keymap_finalize;
object_class->get_property = gdk_keymap_get_property;
object_class->set_property = gdk_keymap_set_property;
klass->keys_changed = gdk_keymap_keys_changed;
props[PROP_DISPLAY] =
g_param_spec_object ("display",
"Display",
"The display of the keymap",
GDK_TYPE_DISPLAY,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, LAST_PROP, props);
/**
* GdkKeymap::direction-changed:
* @keymap: the object on which the signal is emitted
*
* Emitted when the direction of the keymap changes.
*
* See gdk_keymap_get_direction().
*/
signals[DIRECTION_CHANGED] =
g_signal_new (g_intern_static_string ("direction-changed"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GdkKeymapClass, direction_changed),
NULL, NULL,
NULL,
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.
*/
signals[KEYS_CHANGED] =
g_signal_new (g_intern_static_string ("keys-changed"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GdkKeymapClass, keys_changed),
NULL, NULL,
NULL,
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().
*/
signals[STATE_CHANGED] =
g_signal_new (g_intern_static_string ("state-changed"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GdkKeymapClass, state_changed),
NULL, NULL,
NULL,
G_TYPE_NONE,
0);
}
static void
gdk_keymap_init (GdkKeymap *keymap)
{
GdkKeymapKey key;
keymap->cached_keys = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
key.keycode = 0;
key.group = 0;
key.level = 0;
g_array_append_val (keymap->cached_keys, key);
keymap->cache = g_hash_table_new (g_direct_hash, g_direct_equal);
}
/*< private >
* gdk_keymap_get_display:
* @keymap: a `GdkKeymap`
*
* Retrieves the `GdkDisplay` associated to the @keymap.
*
* Returns: (transfer none): a `GdkDisplay`
*/
GdkDisplay *
gdk_keymap_get_display (GdkKeymap *keymap)
{
g_return_val_if_fail (GDK_IS_KEYMAP (keymap), NULL);
return keymap->display;
}
/* 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;
}
/*< private >
* gdk_keymap_get_direction:
* @keymap: a `GdkKeymap`
*
* Returns the direction of effective layout of the keymap.
*
* The direction of a layout is the direction of the majority of its
* symbols. See pango_unichar_direction().
*
* 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);
}
/*< private >
* 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
*/
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);
}
/*< private >
* gdk_keymap_get_caps_lock_state:
* @keymap: a `GdkKeymap`
*
* Returns whether the Caps Lock modifier is locked.
*
* Returns: %TRUE if Caps Lock is on
*/
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);
}
/*< private >
* gdk_keymap_get_num_lock_state:
* @keymap: a `GdkKeymap`
*
* Returns whether the Num Lock modifier is locked.
*
* Returns: %TRUE if Num Lock is on
*/
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);
}
/*< private >
* gdk_keymap_get_scroll_lock_state:
* @keymap: a `GdkKeymap`
*
* Returns whether the Scroll Lock modifier is locked.
*
* Returns: %TRUE if Scroll Lock is on
*/
gboolean
gdk_keymap_get_scroll_lock_state (GdkKeymap *keymap)
{
g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
return GDK_KEYMAP_GET_CLASS (keymap)->get_scroll_lock_state (keymap);
}
/*< private >
* gdk_keymap_get_modifier_state:
* @keymap: a `GdkKeymap`
*
* Returns the current modifier state.
*
* Returns: the current modifier state.
*/
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;
}
/*< private >
* 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().
*
* Returns: %TRUE if keys were found and returned
**/
gboolean
gdk_keymap_get_entries_for_keyval (GdkKeymap *keymap,
guint keyval,
GdkKeymapKey **keys,
int *n_keys)
{
GArray *array;
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);
array = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
GDK_KEYMAP_GET_CLASS (keymap)->get_entries_for_keyval (keymap, keyval, array);
*n_keys = array->len;
*keys = (GdkKeymapKey *)g_array_free (array, FALSE);
return TRUE;
}
void
gdk_keymap_get_cached_entries_for_keyval (GdkKeymap *keymap,
guint keyval,
GdkKeymapKey **keys,
guint *n_keys)
{
guint cached;
guint offset;
guint len;
/* avoid using the first entry in cached_keys, so we can
* use 0 to mean 'not cached'
*/
cached = GPOINTER_TO_UINT (g_hash_table_lookup (keymap->cache, GUINT_TO_POINTER (keyval)));
if (cached == 0)
{
offset = keymap->cached_keys->len;
GDK_KEYMAP_GET_CLASS (keymap)->get_entries_for_keyval (keymap, keyval, keymap->cached_keys);
len = keymap->cached_keys->len - offset;
g_assert (len <= 255);
cached = (offset << 8) | len;
g_hash_table_insert (keymap->cache, GUINT_TO_POINTER (keyval), GUINT_TO_POINTER (cached));
}
else
{
len = cached & 255;
offset = cached >> 8;
}
*n_keys = len;
*keys = (GdkKeymapKey *)&g_array_index (keymap->cached_keys, GdkKeymapKey, offset);
}
/*< private >
* gdk_keymap_get_entries_for_keycode:
* @keymap: a `GdkKeymap`
* @hardware_keycode: a keycode
* @keys: (out) (array length=n_entries) (transfer full) (optional): return
* location for array of `GdkKeymapKey`
* @keyvals: (out) (array length=n_entries) (transfer full) (optional): return
* location for array of keyvals
* @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,
int *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);
}
/*< private >
* 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.
*
* Returns: 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);
}
/*< private >
* gdk_keymap_translate_keyboard_state:
* @keymap: a `GdkKeymap`
* @hardware_keycode: a keycode
* @state: a modifier state
* @group: active keyboard group
* @keyval: (out) (optional): return location for keyval
* @effective_group: (out) (optional): return location for effective group
* @level: (out) (optional): return location for level
* @consumed_modifiers: (out) (optional): return location for modifiers
* that were used to determine the group or level
*
* 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 isnt as useful as you might think.
*
* @consumed_modifiers gives modifiers that should be masked outfrom @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.
*
* |[<!-- language="C" -->
* // We want to ignore irrelevant modifiers like ScrollLock
* #define ALL_ACCELS_MASK (GDK_CONTROL_MASK | GDK_SHIFT_MASK | GDK_ALT_MASK)
* state = gdk_event_get_modifier_state (event);
* gdk_keymap_translate_keyboard_state (keymap,
* gdk_key_event_get_keycode (event),
* state,
* gdk_key_event_get_group (event),
* &keyval, NULL, NULL, &consumed);
* if (keyval == GDK_PLUS &&
* (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:
* |[<!-- language="C" -->
* // XXX Dont do this XXX
* if (keyval == accel_keyval &&
* (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`,
*
* Returns: %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,
int group,
guint *keyval,
int *effective_group,
int *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);
}
#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_”.
*
* Returns: (nullable) (transfer none): a string containing the name
* of the key
*/
const char *
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 char *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_finalsmallsigma)
xupper = GDK_KEY_Greek_SIGMA;
else if (symbol >= GDK_KEY_Greek_alpha && symbol <= GDK_KEY_Greek_omega)
xupper -= (GDK_KEY_Greek_alpha - GDK_KEY_Greek_ALPHA);
break;
default:
break;
}
if (lower)
*lower = xlower;
if (upper)
*upper = xupper;
}