/**
* 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_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_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_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;
}
gboolean
match_xi2_key (Key *key, XIDeviceEvent *event)
{
guint keyval;
GdkModifierType consumed;
gint group;
guint keycode, state;
if (key == NULL)
return FALSE;
setup_modifiers ();
state = device_xi2_translate_state (&event->mods, &event->group);
if (have_xkb (event->display))
group = XkbGroupForCoreState (state);
else
group = (state & GDK_KEY_Mode_switch) ? 1 : 0;
keycode = event->detail;
/* Check if we find a keysym that matches our current state */
if (gdk_keymap_translate_keyboard_state (gdk_keymap_get_default (), keycode,
state, group,
&keyval, NULL, NULL, &consumed)) {
guint lower, upper;
guint mask;
/* The Key structure contains virtual modifiers, whereas
* the XEvent will be using the real modifier, so translate those */
mask = key->state;
gdk_keymap_map_virtual_modifiers (gdk_keymap_get_default (), &mask);
gdk_keyval_convert_case (keyval, &lower, &upper);
/* If we are checking against the lower version of the
* keysym, we might need the Shift state for matching,
* so remove it from the consumed modifiers */
if (lower == key->keysym)
consumed &= ~GDK_SHIFT_MASK;
return ((lower == key->keysym || upper == key->keysym)
&& (state & ~consumed & gsd_used_mods) == mask);
}
/* The key we passed doesn't have a keysym, so try with just the keycode */
return (key != NULL
&& key->state == (state & gsd_used_mods)
&& key_uses_keycode (key, keycode));
}
gboolean
match_key (Key *key, XEvent *event)
{
guint keyval;
GdkModifierType consumed;
gint group;
if (key == NULL)
return FALSE;
setup_modifiers ();
#ifdef HAVE_X11_EXTENSIONS_XKB_H
if (have_xkb (event->xkey.display))
group = XkbGroupForCoreState (event->xkey.state);
else
#endif
group = (event->xkey.state & GDK_KEY_Mode_switch) ? 1 : 0;
/* Check if we find a keysym that matches our current state */
if (gdk_keymap_translate_keyboard_state (NULL, event->xkey.keycode,
event->xkey.state, group,
&keyval, NULL, NULL, &consumed)) {
guint lower, upper;
gdk_keyval_convert_case (keyval, &lower, &upper);
/* If we are checking against the lower version of the
* keysym, we might need the Shift state for matching,
* so remove it from the consumed modifiers */
if (lower == key->keysym)
consumed &= ~GDK_SHIFT_MASK;
return ((lower == key->keysym || upper == key->keysym)
&& (event->xkey.state & ~consumed & msd_used_mods) == key->state);
}
/* The key we passed doesn't have a keysym, so try with just the keycode */
return (key != NULL
&& key->state == (event->xkey.state & msd_used_mods)
&& key_uses_keycode (key, event->xkey.keycode));
}
