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final fixes after feedback from Kazunobu Kuriyama on previous commit - lookup keysym properly when key combinations are pressed in process_key_event; also, improve interpretation of modifier state on keymapnotify events (processEvent:)

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@20129 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Adrian Robert 2004-09-24 19:25:50 +00:00
parent b907de6f9c
commit 765884244c
1 changed files with 36 additions and 51 deletions
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87
Source/x11/XGServerEvent.m
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@ -127,42 +127,28 @@ static void initialize_keyboard (void);
static void set_up_num_lock (void);
// checks if given keycode is set in bit vector
static inline int check_key (XEvent *xEvent, KeyCode key_code)
{
return (key_code == 0) ?
0 : (xEvent->xkeymap.key_vector[key_code / 8] & (1 << (key_code % 8)));
}
// checks whether a GNUstep modifier is pressed when we're only able to check
// whether X keycodes are pressed
// checks whether a GNUstep modifier (key_sym) is pressed when we're only able
// to check whether X keycodes are pressed in xEvent->xkeymap;
static int check_modifier (XEvent *xEvent, KeySym key_sym,
XModifierKeymap *modmap)
{
int m;
int c;
KeyCode key_code;
char *key_vector;
int by,bi;
// if key_sym is a modifier, check each of its keycodes
for (m=0; m<8; m++)
{
key_code = modmap->modifiermap[m * modmap->max_keypermod];
if ((key_code != 0)
&& XKeycodeToKeysym(xEvent->xkeymap.display, key_code, 0) == key_sym)
{
for (c=0; c<modmap->max_keypermod; c++)
{
if (check_key(xEvent,
modmap->modifiermap[m * modmap->max_keypermod + c]))
// implementation fails if key_sym is only accessible by a multi-key
// combination, however this is not expected for GNUstep modifier keys;
// to fix implementation, would need to first determine modifier state by
// a first-pass scann of the full key vector, then use the state in place
// of "0" below in XKeycodeToKeysym
key_vector = xEvent->xkeymap.key_vector;
for (by=0; by<32; by++) {
for (bi=0; bi<8; bi++) {
if ((key_vector[by] & (1 << bi)) &&
(XKeycodeToKeysym(xEvent->xkeymap.display,by*8+bi,0)==key_sym))
return 1;
}
return 0; // no dice
}
}
// wasn't a modifier; just check the first keycode for this keysym,
// which ignores other possibilities but that's the best we can do
// w/o XtKeysymToKeycodeList
return check_key(xEvent, XKeysymToKeycode(xEvent->xkeymap.display, key_sym));
return 0;
}
@implementation XGServer (EventOps)
@ -1554,10 +1540,30 @@ process_key_event (XEvent* xEvent, XGServer* context, NSEventType eventType)
if (_is_keyboard_initialized == NO)
initialize_keyboard ();
/* Process location */
window = [XGServer _windowWithTag: [[NSApp keyWindow] windowNumber]];
eventLocation.x = xEvent->xbutton.x;
if (window)
{
eventLocation.y = window->siz_hints.height - xEvent->xbutton.y;
}
else
{
eventLocation.y = xEvent->xbutton.y;
}
/* Process characters */
keys = [context->inputServer lookupStringForEvent: (XKeyEvent *)xEvent
window: window
keysym: &keysym];
/* Process keycode */
keyCode = ((XKeyEvent *)xEvent)->keycode;
//ximKeyCode = XKeysymToKeycode([XGServer currentXDisplay],keysym);
/* Process NSFlagsChanged events. We can't use a switch because we
are not comparing to constants. Make sure keyCode is not 0 since
XIM events can potentially return 0 keyCodes. */
keysym = XLookupKeysym((XKeyEvent *)xEvent, 0);
if (keysym != NoSymbol)
{
if (keysym == _control_keysyms[0])
@ -1613,27 +1619,6 @@ process_key_event (XEvent* xEvent, XGServer* context, NSEventType eventType)
/* Process modifiers */
eventFlags = process_modifier_flags (xEvent->xkey.state);
/* Process location */
window = [XGServer _windowWithTag: [[NSApp keyWindow] windowNumber]];
eventLocation.x = xEvent->xbutton.x;
if (window)
{
eventLocation.y = window->siz_hints.height - xEvent->xbutton.y;
}
else
{
eventLocation.y = xEvent->xbutton.y;
}
/* Process characters */
keys = [context->inputServer lookupStringForEvent: (XKeyEvent *)xEvent
window: window
keysym: &keysym];
/* Process keycode */
keyCode = ((XKeyEvent *)xEvent)->keycode;
//ximKeyCode = XKeysymToKeycode([XGServer currentXDisplay],keysym);
/* Add NSNumericPadKeyMask if the key is in the KeyPad */
if (IsKeypadKey (keysym))
eventFlags = eventFlags | NSNumericPadKeyMask;