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Diffstat (limited to 'libXt/src/TMkey.c')
| -rw-r--r-- | libXt/src/TMkey.c | 718 |
1 files changed, 718 insertions, 0 deletions
diff --git a/libXt/src/TMkey.c b/libXt/src/TMkey.c new file mode 100644 index 000000000..71bfddb36 --- /dev/null +++ b/libXt/src/TMkey.c @@ -0,0 +1,718 @@ +/* $Xorg: TMkey.c,v 1.4 2001/02/09 02:03:58 xorgcvs Exp $ */ +/*LINTLIBRARY*/ + +/*********************************************************** +Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts, +Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the names of Digital or Sun not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, +INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- +NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE LI- +ABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR +PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR +OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH +THE USE OR PERFORMANCE OF THIS SOFTWARE. + +******************************************************************/ + +/* + +Copyright 1987, 1988, 1994, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ +/* $XFree86: xc/lib/Xt/TMkey.c,v 3.10 2001/12/14 19:56:30 dawes Exp $ */ + +#define XK_MISCELLANY +#define XK_LATIN1 +#define XK_LATIN2 +#define XK_LATIN3 +#define XK_LATIN4 + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "IntrinsicI.h" +#include <X11/keysymdef.h> +#ifdef XKB +#include <X11/XKBlib.h> +#endif + +#define FLUSHKEYCACHE(ctx) \ + bzero((char *)&ctx->keycache, sizeof(TMKeyCache)) + +/* + * The following array reorders the modifier bits so that the most common ones + * (used by a translator) are in the top-most bits with respect to the size of + * the keycache. The array currently just reverses the bits as a good guess. + * This might be more trouble than it is worth, but it seems to help. + */ + +#define FM(i) i >> (8 - TMKEYCACHELOG2) +static const unsigned char modmix[256] = { +FM(0x0f), FM(0x8f), FM(0x4f), FM(0xcf), FM(0x2f), FM(0xaf), FM(0x6f), FM(0xef), +FM(0x1f), FM(0x9f), FM(0x5f), FM(0xdf), FM(0x3f), FM(0xbf), FM(0x7f), FM(0xff), +FM(0x07), FM(0x87), FM(0x47), FM(0xc7), FM(0x27), FM(0xa7), FM(0x67), FM(0xe7), +FM(0x17), FM(0x97), FM(0x57), FM(0xd7), FM(0x37), FM(0xb7), FM(0x77), FM(0xf7), +FM(0x0b), FM(0x8b), FM(0x4b), FM(0xcb), FM(0x2b), FM(0xab), FM(0x6b), FM(0xeb), +FM(0x1b), FM(0x9b), FM(0x5b), FM(0xdb), FM(0x3b), FM(0xbb), FM(0x7b), FM(0xfb), +FM(0x03), FM(0x83), FM(0x43), FM(0xc3), FM(0x23), FM(0xa3), FM(0x63), FM(0xe3), +FM(0x13), FM(0x93), FM(0x53), FM(0xd3), FM(0x33), FM(0xb3), FM(0x73), FM(0xf3), +FM(0x0d), FM(0x8d), FM(0x4d), FM(0xcd), FM(0x2d), FM(0xad), FM(0x6d), FM(0xed), +FM(0x1d), FM(0x9d), FM(0x5d), FM(0xdd), FM(0x3d), FM(0xbd), FM(0x7d), FM(0xfd), +FM(0x05), FM(0x85), FM(0x45), FM(0xc5), FM(0x25), FM(0xa5), FM(0x65), FM(0xe5), +FM(0x15), FM(0x95), FM(0x55), FM(0xd5), FM(0x35), FM(0xb5), FM(0x75), FM(0xf5), +FM(0x09), FM(0x89), FM(0x49), FM(0xc9), FM(0x29), FM(0xa9), FM(0x69), FM(0xe9), +FM(0x19), FM(0x99), FM(0x59), FM(0xd9), FM(0x39), FM(0xb9), FM(0x79), FM(0xf9), +FM(0x01), FM(0x81), FM(0x41), FM(0xc1), FM(0x21), FM(0xa1), FM(0x61), FM(0xe1), +FM(0x11), FM(0x91), FM(0x51), FM(0xd1), FM(0x31), FM(0xb1), FM(0x71), FM(0xf1), +FM(0x00), FM(0x8e), FM(0x4e), FM(0xce), FM(0x2e), FM(0xae), FM(0x6e), FM(0xee), +FM(0x1e), FM(0x9e), FM(0x5e), FM(0xde), FM(0x3e), FM(0xbe), FM(0x7e), FM(0xfe), +FM(0x08), FM(0x88), FM(0x48), FM(0xc8), FM(0x28), FM(0xa8), FM(0x68), FM(0xe8), +FM(0x18), FM(0x98), FM(0x58), FM(0xd8), FM(0x38), FM(0xb8), FM(0x78), FM(0xf8), +FM(0x04), FM(0x84), FM(0x44), FM(0xc4), FM(0x24), FM(0xa4), FM(0x64), FM(0xe4), +FM(0x14), FM(0x94), FM(0x54), FM(0xd4), FM(0x34), FM(0xb4), FM(0x74), FM(0xf4), +FM(0x0c), FM(0x8c), FM(0x4c), FM(0xcc), FM(0x2c), FM(0xac), FM(0x6c), FM(0xec), +FM(0x1c), FM(0x9c), FM(0x5c), FM(0xdc), FM(0x3c), FM(0xbc), FM(0x7c), FM(0xfc), +FM(0x02), FM(0x82), FM(0x42), FM(0xc2), FM(0x22), FM(0xa2), FM(0x62), FM(0xe2), +FM(0x12), FM(0x92), FM(0x52), FM(0xd2), FM(0x32), FM(0xb2), FM(0x72), FM(0xf2), +FM(0x0a), FM(0x8a), FM(0x4a), FM(0xca), FM(0x2a), FM(0xaa), FM(0x6a), FM(0xea), +FM(0x1a), FM(0x9a), FM(0x5a), FM(0xda), FM(0x3a), FM(0xba), FM(0x7a), FM(0xfa), +FM(0x06), FM(0x86), FM(0x46), FM(0xc6), FM(0x26), FM(0xa6), FM(0x66), FM(0xe6), +FM(0x16), FM(0x96), FM(0x56), FM(0xd6), FM(0x36), FM(0xb6), FM(0x76), FM(0xf6), +FM(0x0e), FM(0x8e), FM(0x4e), FM(0xce), FM(0x2e), FM(0xae), FM(0x6e), FM(0xee), +FM(0x1e), FM(0x9e), FM(0x5e), FM(0xde), FM(0x3e), FM(0xbe), FM(0x7e), FM(0xfe) +}; +#undef FM + +#define MOD_RETURN(ctx, key) (ctx)->keycache.modifiers_return[key] + +#define TRANSLATE(ctx,pd,dpy,key,mod,mod_ret,sym_ret) \ +{ \ + int _i_ = (((key) - (pd)->min_keycode + modmix[(mod) & 0xff]) & \ + (TMKEYCACHESIZE-1)); \ + if ((key) == 0) { /* Xlib XIM composed input */ \ + mod_ret = 0; \ + sym_ret = 0; \ + } else if ( /* not Xlib XIM composed input */ \ + (ctx)->keycache.keycode[_i_] == (key) && \ + (ctx)->keycache.modifiers[_i_] == (mod)) { \ + mod_ret = MOD_RETURN(ctx, key); \ + sym_ret = (ctx)->keycache.keysym[_i_]; \ + } else { \ + XtTranslateKeycode(dpy, key, mod, &mod_ret, &sym_ret); \ + (ctx)->keycache.keycode[_i_] = key; \ + (ctx)->keycache.modifiers[_i_] = (unsigned char)(mod); \ + (ctx)->keycache.keysym[_i_] = sym_ret; \ + MOD_RETURN(ctx, key) = (unsigned char)mod_ret; \ + } \ +} + +#define UPDATE_CACHE(ctx, pd, key, mod, mod_ret, sym_ret) \ +{ \ + int _i_ = (((key) - (pd)->min_keycode + modmix[(mod) & 0xff]) & \ + (TMKEYCACHESIZE-1)); \ + (ctx)->keycache.keycode[_i_] = key; \ + (ctx)->keycache.modifiers[_i_] = (unsigned char)(mod); \ + (ctx)->keycache.keysym[_i_] = sym_ret; \ + MOD_RETURN(ctx, key) = (unsigned char)mod_ret; \ +} + +/* usual number of expected keycodes in XtKeysymToKeycodeList */ +#define KEYCODE_ARRAY_SIZE 10 + +Boolean _XtComputeLateBindings( + Display *dpy, + LateBindingsPtr lateModifiers, + Modifiers *computed, + Modifiers *computedMask) +{ + int i,j,ref; + ModToKeysymTable* temp; + XtPerDisplay perDisplay; + Boolean found; + KeySym tempKeysym = NoSymbol; + + perDisplay = _XtGetPerDisplay(dpy); + if (perDisplay == NULL) { + XtAppWarningMsg(XtDisplayToApplicationContext(dpy), + "displayError","invalidDisplay",XtCXtToolkitError, + "Can't find display structure", + (String *)NULL, (Cardinal *)NULL); + return FALSE; + } + _InitializeKeysymTables(dpy, perDisplay); + for (ref=0; lateModifiers[ref].keysym; ref++) { + found = FALSE; + for (i=0;i<8;i++) { + temp = &(perDisplay->modsToKeysyms[i]); + for (j=0;j<temp->count;j++){ + if (perDisplay->modKeysyms[temp->idx+j] == + lateModifiers[ref].keysym) { + *computedMask = *computedMask | temp->mask; + if (!lateModifiers[ref].knot) + *computed |= temp->mask; + tempKeysym = lateModifiers[ref].keysym; + found = TRUE; break; + } + } + if (found) break; + } + if (!found && !lateModifiers[ref].knot) + if (!lateModifiers[ref].pair && (tempKeysym == NoSymbol)) + return FALSE; + /* if you didn't find the modifier and the modifier must be + asserted then return FALSE. If you didn't find the modifier + and the modifier must be off, then it is OK . Don't + return FALSE if this is the first member of a pair or if + it is the second member of a pair when the first member + was bound to a modifier */ + if (!lateModifiers[ref].pair) tempKeysym = NoSymbol; + } + return TRUE; +} + +void _XtAllocTMContext( + XtPerDisplay pd) +{ + TMKeyContext ctx; + ctx = (TMKeyContext)_XtHeapAlloc(&pd->heap, + sizeof(TMKeyContextRec)); + ctx->event = NULL; + ctx->serial = 0; + ctx->keysym = NoSymbol; + ctx->modifiers = 0; + FLUSHKEYCACHE(ctx); + pd->tm_context = ctx; +} + +static unsigned int num_bits(unsigned long mask) +{ + register unsigned long y; + + y = (mask >> 1) &033333333333; + y = mask - y - ((y >>1) & 033333333333); + return ((unsigned int) (((y + (y >> 3)) & 030707070707) % 077)); +} + +Boolean _XtMatchUsingDontCareMods( + TMTypeMatch typeMatch, + TMModifierMatch modMatch, + TMEventPtr eventSeq) +{ + Modifiers modifiers_return; + KeySym keysym_return; + Modifiers useful_mods; + int i, num_modbits; + Modifiers computed = 0; + Modifiers computedMask = 0; + Boolean resolved = TRUE; + Display *dpy = eventSeq->xev->xany.display; + XtPerDisplay pd; + TMKeyContext tm_context; + + if (modMatch->lateModifiers != NULL) + resolved = _XtComputeLateBindings(dpy, modMatch->lateModifiers, + &computed, &computedMask); + if (!resolved) return FALSE; + computed |= modMatch->modifiers; + computedMask |= modMatch->modifierMask; /* gives do-care mask */ + + if ( (computed & computedMask) == + (eventSeq->event.modifiers & computedMask) ) { + + pd = _XtGetPerDisplay(dpy); + tm_context = pd->tm_context; + TRANSLATE(tm_context, pd, dpy, (KeyCode)eventSeq->event.eventCode, + (unsigned)0, modifiers_return, keysym_return); + + if ((keysym_return & typeMatch->eventCodeMask) == typeMatch->eventCode ) { + tm_context->event = eventSeq->xev; + tm_context->serial = eventSeq->xev->xany.serial; + tm_context->keysym = keysym_return; + tm_context->modifiers = (Modifiers)0; + return TRUE; + } + useful_mods = ~computedMask & modifiers_return; + if (useful_mods == 0) return FALSE; + + switch (num_modbits = num_bits(useful_mods)) { + case 1: + case 8: + /* + * one modbit should never happen, in fact the implementation + * of XtTranslateKey and XmTranslateKey guarantee that it + * won't, so don't care if the loop is set up for the case + * when one modbit is set. + * The performance implications of all eight modbits being + * set is horrendous. This isn't a problem with Xt/Xaw based + * applications. We can only hope that Motif's virtual + * modifiers won't result in all eight modbits being set. + */ + for (i = useful_mods; i > 0; i--) { + TRANSLATE(tm_context, pd, dpy, eventSeq->event.eventCode, + (Modifiers)i, modifiers_return, keysym_return); + if (keysym_return == + (typeMatch->eventCode & typeMatch->eventCodeMask)) { + tm_context->event = eventSeq->xev; + tm_context->serial = eventSeq->xev->xany.serial; + tm_context->keysym = keysym_return; + tm_context->modifiers = (Modifiers)i; + return TRUE; + } + } + break; + default: /* (2..7) */ + { + /* + * Only translate using combinations of the useful modifiers. + * to minimize the chance of invalidating the cache. + */ + static char pows[] = { 0, 1, 3, 7, 15, 31, 63, 127 }; + Modifiers tmod, mod_masks[8]; + int j; + for (tmod = 1, i = 0; tmod <= (Mod5Mask<<1); tmod <<= 1) + if (tmod & useful_mods) mod_masks[i++] = tmod; + for (j = (int) pows[num_modbits]; j > 0; j--) { + tmod = 0; + for (i = 0; i < num_modbits; i++) + if (j & (1<<i)) tmod |= mod_masks[i]; + TRANSLATE(tm_context, pd, dpy, eventSeq->event.eventCode, + tmod, modifiers_return, keysym_return); + if (keysym_return == + (typeMatch->eventCode & typeMatch->eventCodeMask)) { + tm_context->event = eventSeq->xev; + tm_context->serial = eventSeq->xev->xany.serial; + tm_context->keysym = keysym_return; + tm_context->modifiers = (Modifiers)i; + return TRUE; + } + } + } + break; + } /* switch (num_modbits) */ + } + return FALSE; +} + +void XtConvertCase( + Display *dpy, + KeySym keysym, + KeySym *lower_return, + KeySym *upper_return) +{ + XtPerDisplay pd; + CaseConverterPtr ptr; + DPY_TO_APPCON(dpy); + + LOCK_APP(app); + pd = _XtGetPerDisplay(dpy); + + *lower_return = *upper_return = keysym; + for (ptr=pd->case_cvt; ptr; ptr = ptr->next) + if (ptr->start <= keysym && keysym <= ptr->stop) { + (*ptr->proc)(dpy, keysym, lower_return, upper_return); + return; + } + XConvertCase(keysym, lower_return, upper_return); + UNLOCK_APP(app); +} + +Boolean _XtMatchUsingStandardMods ( + TMTypeMatch typeMatch, + TMModifierMatch modMatch, + TMEventPtr eventSeq) +{ + Modifiers modifiers_return; + KeySym keysym_return; + Modifiers computed= 0; + Modifiers computedMask = 0; + Boolean resolved = TRUE; + Display *dpy = eventSeq->xev->xany.display; + XtPerDisplay pd = _XtGetPerDisplay(dpy); + TMKeyContext tm_context = pd->tm_context; + Modifiers translateModifiers; + + /* To maximize cache utilization, we mask off nonstandard modifiers + before cache lookup. For a given key translator, standard modifiers + are constant per KeyCode. If a key translator uses no standard + modifiers this implementation will never reference the cache. + */ + + modifiers_return = MOD_RETURN(tm_context, eventSeq->event.eventCode); + if (!modifiers_return) { + XtTranslateKeycode(dpy, (KeyCode)eventSeq->event.eventCode, + eventSeq->event.modifiers, &modifiers_return, + &keysym_return); + translateModifiers = eventSeq->event.modifiers & modifiers_return; + UPDATE_CACHE(tm_context, pd, eventSeq->event.eventCode, + translateModifiers, modifiers_return, keysym_return); + } else { + translateModifiers = eventSeq->event.modifiers & modifiers_return; + TRANSLATE(tm_context, pd, dpy, (KeyCode)eventSeq->event.eventCode, + translateModifiers, modifiers_return, keysym_return); + } + + if ((typeMatch->eventCode & typeMatch->eventCodeMask) == + (keysym_return & typeMatch->eventCodeMask)) { + if (modMatch->lateModifiers != NULL) + resolved = _XtComputeLateBindings(dpy, modMatch->lateModifiers, + &computed, &computedMask); + if (!resolved) return FALSE; + computed |= modMatch->modifiers; + computedMask |= modMatch->modifierMask; + + if ((computed & computedMask) == + (eventSeq->event.modifiers & ~modifiers_return & computedMask)) { + tm_context->event = eventSeq->xev; + tm_context->serial = eventSeq->xev->xany.serial; + tm_context->keysym = keysym_return; + tm_context->modifiers = translateModifiers; + return TRUE; + } + } + return FALSE; +} + + +void _XtBuildKeysymTables( + Display *dpy, + register XtPerDisplay pd) +{ + ModToKeysymTable *table; + int maxCount,i,j,k,tempCount,idx; + KeySym keysym,tempKeysym; + XModifierKeymap* modKeymap; + KeyCode keycode; +#define KeysymTableSize 16 + + FLUSHKEYCACHE(pd->tm_context); + if (pd->keysyms) + XFree( (char *)pd->keysyms ); + pd->keysyms_serial = NextRequest(dpy); + pd->keysyms = XGetKeyboardMapping(dpy, pd->min_keycode, + pd->max_keycode-pd->min_keycode+1, + &pd->keysyms_per_keycode); + if (pd->modKeysyms) + XtFree((char *)pd->modKeysyms); + if (pd->modsToKeysyms) + XtFree((char *)pd->modsToKeysyms); + pd->modKeysyms = (KeySym*)__XtMalloc((Cardinal)KeysymTableSize*sizeof(KeySym)); + maxCount = KeysymTableSize; + tempCount = 0; + + table = (ModToKeysymTable*)__XtMalloc((Cardinal)8*sizeof(ModToKeysymTable)); + pd->modsToKeysyms = table; + + table[0].mask = ShiftMask; + table[1].mask = LockMask; + table[2].mask = ControlMask; + table[3].mask = Mod1Mask; + table[4].mask = Mod2Mask; + table[5].mask = Mod3Mask; + table[6].mask = Mod4Mask; + table[7].mask = Mod5Mask; + tempKeysym = 0; + + modKeymap = XGetModifierMapping(dpy); + for (i=0;i<32;i++) + pd->isModifier[i] = 0; + pd->mode_switch = 0; + pd->num_lock = 0; + for (i=0;i<8;i++) { + table[i].idx = tempCount; + table[i].count = 0; + for (j=0;j<modKeymap->max_keypermod;j++) { + keycode = modKeymap->modifiermap[i*modKeymap->max_keypermod+j]; + if (keycode != 0) { + pd->isModifier[keycode>>3] |= 1 << (keycode & 7); + for (k=0; k<pd->keysyms_per_keycode;k++) { + idx = ((keycode-pd->min_keycode)* + pd->keysyms_per_keycode)+k; + keysym = pd->keysyms[idx]; + if ((keysym == XK_Mode_switch) && (i > 2)) + pd->mode_switch |= 1 << i; + if ((keysym == XK_Num_Lock) && (i > 2)) + pd->num_lock |= 1 << i; + if (keysym != 0 && keysym != tempKeysym ){ + if (tempCount==maxCount) { + maxCount += KeysymTableSize; + pd->modKeysyms = (KeySym*)XtRealloc( + (char*)pd->modKeysyms, + (unsigned) (maxCount*sizeof(KeySym)) ); + } + pd->modKeysyms[tempCount++] = keysym; + table[i].count++; + tempKeysym = keysym; + } + } + } + } + } + pd->lock_meaning = NoSymbol; + for (i = 0; i < table[1].count; i++) { + keysym = pd->modKeysyms[table[1].idx + i]; + if (keysym == XK_Caps_Lock) { + pd->lock_meaning = XK_Caps_Lock; + break; + } else if (keysym == XK_Shift_Lock) { + pd->lock_meaning = XK_Shift_Lock; + } + } + XFreeModifiermap(modKeymap); +} + +void XtTranslateKeycode ( + Display *dpy, + _XtKeyCode keycode, + Modifiers modifiers, + Modifiers *modifiers_return, + KeySym *keysym_return) +{ + XtPerDisplay pd; + DPY_TO_APPCON(dpy); + + LOCK_APP(app); + pd = _XtGetPerDisplay(dpy); + _InitializeKeysymTables(dpy, pd); + (*pd->defaultKeycodeTranslator)( + dpy,keycode,modifiers,modifiers_return,keysym_return); + UNLOCK_APP(app); +} + +/* This code should match XTranslateKey (internal, sigh) in Xlib */ +void XtTranslateKey( + register Display *dpy, + _XtKeyCode keycode, + Modifiers modifiers, + Modifiers *modifiers_return, + KeySym *keysym_return) +{ +#ifndef XKB + XtPerDisplay pd; + int per; + register KeySym *syms; + KeySym sym, lsym, usym; + DPY_TO_APPCON(dpy); + + LOCK_APP(app); + pd = _XtGetPerDisplay(dpy); + *modifiers_return = (ShiftMask|LockMask) | pd->mode_switch | pd->num_lock; + if (((int)keycode < pd->min_keycode) || ((int)keycode > pd->max_keycode)) { + *keysym_return = NoSymbol; + UNLOCK_APP(app); + return; + } + per = pd->keysyms_per_keycode; + syms = &pd->keysyms[(keycode - pd->min_keycode) * per]; + while ((per > 2) && (syms[per - 1] == NoSymbol)) + per--; + if ((per > 2) && (modifiers & pd->mode_switch)) { + syms += 2; + per -= 2; + } + if ((modifiers & pd->num_lock) && + (per > 1 && (IsKeypadKey(syms[1]) || IsPrivateKeypadKey(syms[1])))) { + if ((modifiers & ShiftMask) || + ((modifiers & LockMask) && (pd->lock_meaning == XK_Shift_Lock))) + *keysym_return = syms[0]; + else + *keysym_return = syms[1]; + } else if (!(modifiers & ShiftMask) && + (!(modifiers & LockMask) || (pd->lock_meaning == NoSymbol))) { + if ((per == 1) || (syms[1] == NoSymbol)) + XtConvertCase(dpy, syms[0], keysym_return, &usym); + else + *keysym_return = syms[0]; + } else if (!(modifiers & LockMask) || + (pd->lock_meaning != XK_Caps_Lock)) { + if ((per == 1) || ((usym = syms[1]) == NoSymbol)) + XtConvertCase(dpy, syms[0], &lsym, &usym); + *keysym_return = usym; + } else { + if ((per == 1) || ((sym = syms[1]) == NoSymbol)) + sym = syms[0]; + XtConvertCase(dpy, sym, &lsym, &usym); + if (!(modifiers & ShiftMask) && (sym != syms[0]) && + ((sym != usym) || (lsym == usym))) + XtConvertCase(dpy, syms[0], &lsym, &usym); + *keysym_return = usym; + } + + if (*keysym_return == XK_VoidSymbol) + *keysym_return = NoSymbol; + UNLOCK_APP(app); +#else + XkbLookupKeySym(dpy, keycode, modifiers, modifiers_return, keysym_return); +#endif +} + +void XtSetKeyTranslator( + Display *dpy, + XtKeyProc translator) +{ + XtPerDisplay pd; + DPY_TO_APPCON(dpy); + + LOCK_APP(app); + pd = _XtGetPerDisplay(dpy); + + pd->defaultKeycodeTranslator = translator; + FLUSHKEYCACHE(pd->tm_context); + /* XXX should now redo grabs */ + UNLOCK_APP(app); +} + +void XtRegisterCaseConverter( + Display *dpy, + XtCaseProc proc, + KeySym start, + KeySym stop) +{ + XtPerDisplay pd; + CaseConverterPtr ptr, prev; + DPY_TO_APPCON(dpy); + + LOCK_APP(app); + pd = _XtGetPerDisplay(dpy); + + ptr = (CaseConverterPtr) __XtMalloc(sizeof(CaseConverterRec)); + ptr->start = start; + ptr->stop = stop; + ptr->proc = proc; + ptr->next = pd->case_cvt; + pd->case_cvt = ptr; + + /* Remove obsolete case converters from the list */ + prev = ptr; + for (ptr=ptr->next; ptr; ptr=prev->next) { + if (start <= ptr->start && stop >= ptr->stop) { + prev->next = ptr->next; + XtFree((char *)ptr); + } + else prev = ptr; + } + FLUSHKEYCACHE(pd->tm_context); + /* XXX should now redo grabs */ + UNLOCK_APP(app); +} + +KeySym *XtGetKeysymTable( + Display *dpy, + KeyCode *min_keycode_return, + int *keysyms_per_keycode_return) +{ + XtPerDisplay pd; + KeySym* retval; + DPY_TO_APPCON(dpy); + + LOCK_APP(app); + pd = _XtGetPerDisplay(dpy); + _InitializeKeysymTables(dpy, pd); + *min_keycode_return = pd->min_keycode; /* %%% */ + *keysyms_per_keycode_return = pd->keysyms_per_keycode; + retval = pd->keysyms; + UNLOCK_APP(app); + return retval; +} + +void XtKeysymToKeycodeList( + Display *dpy, + KeySym keysym, + KeyCode **keycodes_return, + Cardinal *keycount_return) +{ + XtPerDisplay pd; + unsigned keycode; + int per, match; + register KeySym *syms; + register int i, j; + KeySym lsym, usym; + unsigned maxcodes = 0; + unsigned ncodes = 0; + KeyCode *keycodes, *codeP = NULL; + DPY_TO_APPCON(dpy); + + LOCK_APP(app); + pd = _XtGetPerDisplay(dpy); + _InitializeKeysymTables(dpy, pd); + keycodes = NULL; + per = pd->keysyms_per_keycode; + for (syms = pd->keysyms, keycode = (unsigned) pd->min_keycode; + (int)keycode <= pd->max_keycode; + syms += per, keycode++) { + match = 0; + for (j = 0; j < per; j++) { + if (syms[j] == keysym) { + match = 1; + break; + } + } + if (!match) + for (i = 1; i < 5; i += 2) { + if ((per == i) || ((per > i) && (syms[i] == NoSymbol))) { + XtConvertCase(dpy, syms[i-1], &lsym, &usym); + if ((lsym == keysym) || (usym == keysym)) { + match = 1; + break; + } + } + } + if (match) { + if (ncodes == maxcodes) { + KeyCode *old = keycodes; + maxcodes += KEYCODE_ARRAY_SIZE; + keycodes = (KeyCode*)__XtMalloc(maxcodes*sizeof(KeyCode)); + if (ncodes) { + (void) memmove((char *)keycodes, (char *)old, + ncodes*sizeof(KeyCode) ); + XtFree((char *)old); + } + codeP = &keycodes[ncodes]; + } + *codeP++ = (KeyCode) keycode; + ncodes++; + } + } + *keycodes_return = keycodes; + *keycount_return = ncodes; + UNLOCK_APP(app); +} |