Home | History | Annotate | Line # | Download | only in xlibi18n
      1 /*
      2  * Copyright 1990, 1991 by OMRON Corporation, NTT Software Corporation,
      3  *                      and Nippon Telegraph and Telephone Corporation
      4  * Copyright 1991 by the Open Software Foundation
      5  * Copyright 1993 by the FUJITSU LIMITED
      6  *
      7  * Permission to use, copy, modify, distribute, and sell this software and its
      8  * documentation for any purpose is hereby granted without fee, provided that
      9  * the above copyright notice appear in all copies and that both that
     10  * copyright notice and this permission notice appear in supporting
     11  * documentation, and that the names of OMRON, NTT Software, NTT, and
     12  * Open Software Foundation not be used in advertising or publicity
     13  * pertaining to distribution of the software without specific,
     14  * written prior permission. OMRON, NTT Software, NTT, and Open Software
     15  * Foundation make no representations about the suitability of this
     16  * software for any purpose.  It is provided "as is" without express or
     17  * implied warranty.
     18  *
     19  * OMRON, NTT SOFTWARE, NTT, AND OPEN SOFTWARE FOUNDATION
     20  * DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
     21  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
     22  * SHALL OMRON, NTT SOFTWARE, NTT, OR OPEN SOFTWARE FOUNDATION BE
     23  * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     24  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     25  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     26  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     27  *
     28  *	Authors: Li Yuhong		OMRON Corporation
     29  *		 Tatsuya Kato		NTT Software Corporation
     30  *		 Hiroshi Kuribayashi	OMRON Coproration
     31  *		 Muneiyoshi Suzuki	Nippon Telegraph and Telephone Co.
     32  *
     33  *		 M. Collins		OSF
     34  *		 Takashi Fujiwara	FUJITSU LIMITED
     35  */
     36 /*
     37 
     38 Copyright 1991, 1998  The Open Group
     39 
     40 Permission to use, copy, modify, distribute, and sell this software and its
     41 documentation for any purpose is hereby granted without fee, provided that
     42 the above copyright notice appear in all copies and that both that
     43 copyright notice and this permission notice appear in supporting
     44 documentation.
     45 
     46 The above copyright notice and this permission notice shall be included
     47 in all copies or substantial portions of the Software.
     48 
     49 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     50 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     51 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     52 IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
     53 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     54 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     55 OTHER DEALINGS IN THE SOFTWARE.
     56 
     57 Except as contained in this notice, the name of The Open Group shall
     58 not be used in advertising or otherwise to promote the sale, use or
     59 other dealings in this Software without prior written authorization
     60 from The Open Group.
     61 
     62 */
     63 
     64 #ifdef HAVE_CONFIG_H
     65 #include <config.h>
     66 #endif
     67 #include "Xlibint.h"
     68 #include "Xlcint.h"
     69 #include "reallocarray.h"
     70 
     71 static int
     72 _XIMNestedListToNestedList(
     73     XIMArg *nlist,   /* This is the new list */
     74     XIMArg *list)    /* The original list */
     75 {
     76     register XIMArg *ptr = list;
     77 
     78     while (ptr->name) {
     79 	if (!strcmp(ptr->name, XNVaNestedList)) {
     80 	    nlist += _XIMNestedListToNestedList(nlist, (XIMArg *)ptr->value);
     81 	} else {
     82 	    nlist->name = ptr->name;
     83 	    nlist->value = ptr->value;
     84 	    ptr++;
     85 	    nlist++;
     86 	}
     87     }
     88     return (int) (ptr - list);
     89 }
     90 
     91 static void
     92 _XIMCountNestedList(
     93     XIMArg *args,
     94     int *total_count)
     95 {
     96     for (; args->name; args++) {
     97 	if (!strcmp(args->name, XNVaNestedList))
     98 	    _XIMCountNestedList((XIMArg *)args->value, total_count);
     99 	else
    100 	    ++(*total_count);
    101     }
    102 }
    103 
    104 static void
    105 _XIMCountVaList(va_list var, int *total_count)
    106 {
    107     char *attr;
    108 
    109     *total_count = 0;
    110 
    111     for (attr = va_arg(var, char*); attr; attr = va_arg(var, char*)) {
    112 	if (!strcmp(attr, XNVaNestedList)) {
    113 	    _XIMCountNestedList(va_arg(var, XIMArg*), total_count);
    114 	} else {
    115 	    (void)va_arg(var, XIMArg*);
    116 	    ++(*total_count);
    117 	}
    118     }
    119 }
    120 
    121 static void
    122 _XIMVaToNestedList(va_list var, int max_count, XIMArg **args_return)
    123 {
    124     XIMArg *args;
    125     char   *attr;
    126 
    127     if (max_count <= 0) {
    128 	*args_return = (XIMArg *)NULL;
    129 	return;
    130     }
    131 
    132     args = Xmallocarray((unsigned)max_count + 1, sizeof(XIMArg));
    133     *args_return = args;
    134     if (!args) return;
    135 
    136     for (attr = va_arg(var, char*); attr; attr = va_arg(var, char*)) {
    137 	if (!strcmp(attr, XNVaNestedList)) {
    138 	    args += _XIMNestedListToNestedList(args, va_arg(var, XIMArg*));
    139 	} else {
    140 	    args->name = attr;
    141 	    args->value = va_arg(var, XPointer);
    142 	    args++;
    143 	}
    144     }
    145     args->name = (char*)NULL;
    146 }
    147 
    148 /*ARGSUSED*/
    149 XVaNestedList
    150 XVaCreateNestedList(int dummy, ...)
    151 {
    152     va_list		var;
    153     XIMArg		*args = NULL;
    154     int			total_count;
    155 
    156     va_start(var, dummy);
    157     _XIMCountVaList(var, &total_count);
    158     va_end(var);
    159 
    160     va_start(var, dummy);
    161     _XIMVaToNestedList(var, total_count, &args);
    162     va_end(var);
    163 
    164     return (XVaNestedList)args;
    165 }
    166 
    167 char *
    168 XSetIMValues(XIM im, ...)
    169 {
    170     va_list var;
    171     int     total_count;
    172     XIMArg *args;
    173     char   *ret = NULL;
    174 
    175     /*
    176      * so count the stuff dangling here
    177      */
    178     va_start(var, im);
    179     _XIMCountVaList(var, &total_count);
    180     va_end(var);
    181 
    182     /*
    183      * now package it up so we can send it along
    184      */
    185     va_start(var, im);
    186     _XIMVaToNestedList(var, total_count, &args);
    187     va_end(var);
    188 
    189     if (im && im->methods)
    190 	ret = (*im->methods->set_values) (im, args);
    191     Xfree(args);
    192     return ret;
    193 }
    194 
    195 char *
    196 XGetIMValues(XIM im, ...)
    197 {
    198     va_list var;
    199     int     total_count;
    200     XIMArg *args;
    201     char   *ret = NULL;
    202 
    203     /*
    204      * so count the stuff dangling here
    205      */
    206     va_start(var, im);
    207     _XIMCountVaList(var, &total_count);
    208     va_end(var);
    209 
    210     /*
    211      * now package it up so we can send it along
    212      */
    213     va_start(var, im);
    214     _XIMVaToNestedList(var, total_count, &args);
    215     va_end(var);
    216 
    217     if (im && im->methods)
    218 	ret = (*im->methods->get_values) (im, args);
    219     Xfree(args);
    220     return ret;
    221 }
    222 
    223 /*
    224  * Create an input context within the input method,
    225  * and return a pointer to the input context.
    226  */
    227 
    228 XIC
    229 XCreateIC(XIM im, ...)
    230 {
    231     va_list var;
    232     int     total_count;
    233     XIMArg *args;
    234     XIC     ic = NULL;
    235 
    236     /*
    237      * so count the stuff dangling here
    238      */
    239     va_start(var, im);
    240     _XIMCountVaList(var, &total_count);
    241     va_end(var);
    242 
    243     /*
    244      * now package it up so we can send it along
    245      */
    246     va_start(var, im);
    247     _XIMVaToNestedList(var, total_count, &args);
    248     va_end(var);
    249 
    250     if (im && im->methods)
    251 	ic = (XIC) (*im->methods->create_ic) (im, args);
    252     Xfree(args);
    253     if (ic) {
    254 	ic->core.next = im->core.ic_chain;
    255 	im->core.ic_chain = ic;
    256     }
    257     return ic;
    258 }
    259 
    260 /*
    261  * Free the input context.
    262  */
    263 void
    264 XDestroyIC(XIC ic)
    265 {
    266     XIM im = ic->core.im;
    267     XIC *prev;
    268 
    269     (*ic->methods->destroy) (ic);
    270     if (im) {
    271 	for (prev = &im->core.ic_chain; *prev; prev = &(*prev)->core.next) {
    272 	    if (*prev == ic) {
    273 		*prev = ic->core.next;
    274 		break;
    275 	    }
    276 	}
    277     }
    278     Xfree (ic);
    279 }
    280 
    281 char *
    282 XGetICValues(XIC ic, ...)
    283 {
    284     va_list var;
    285     int     total_count;
    286     XIMArg *args;
    287     char   *ret;
    288 
    289     if (!ic->core.im)
    290 	return (char *) NULL;
    291 
    292     /*
    293      * so count the stuff dangling here
    294      */
    295     va_start(var, ic);
    296     _XIMCountVaList(var, &total_count);
    297     va_end(var);
    298 
    299     /*
    300      * now package it up so we can send it along
    301      */
    302     va_start(var, ic);
    303     _XIMVaToNestedList(var, total_count, &args);
    304     va_end(var);
    305 
    306     ret = (*ic->methods->get_values) (ic, args);
    307     Xfree(args);
    308     return ret;
    309 }
    310 
    311 char *
    312 XSetICValues(XIC ic, ...)
    313 {
    314     va_list var;
    315     int     total_count;
    316     XIMArg *args;
    317     char   *ret;
    318 
    319     if (!ic->core.im)
    320 	return (char *) NULL;
    321 
    322     /*
    323      * so count the stuff dangling here
    324      */
    325     va_start(var, ic);
    326     _XIMCountVaList(var, &total_count);
    327     va_end(var);
    328 
    329     /*
    330      * now package it up so we can send it along
    331      */
    332     va_start(var, ic);
    333     _XIMVaToNestedList(var, total_count, &args);
    334     va_end(var);
    335 
    336     ret = (*ic->methods->set_values) (ic, args);
    337     Xfree(args);
    338     return ret;
    339 }
    340 
    341 /*
    342  * Require the input manager to focus the focus window attached to the ic
    343  * argument.
    344  */
    345 void
    346 XSetICFocus(XIC ic)
    347 {
    348   if (ic && ic->core.im)
    349       (*ic->methods->set_focus) (ic);
    350 }
    351 
    352 /*
    353  * Require the input manager to unfocus the focus window attached to the ic
    354  * argument.
    355  */
    356 void
    357 XUnsetICFocus(XIC ic)
    358 {
    359   if (ic->core.im)
    360       (*ic->methods->unset_focus) (ic);
    361 }
    362 
    363 /*
    364  * Return the XIM associated with the input context.
    365  */
    366 XIM
    367 XIMOfIC(XIC ic)
    368 {
    369     return ic->core.im;
    370 }
    371 
    372 char *
    373 XmbResetIC(XIC ic)
    374 {
    375     if (ic->core.im)
    376 	return (*ic->methods->mb_reset)(ic);
    377     return (char *)NULL;
    378 }
    379 
    380 wchar_t *
    381 XwcResetIC(XIC ic)
    382 {
    383     if (ic->core.im)
    384 	return (*ic->methods->wc_reset)(ic);
    385     return (wchar_t *)NULL;
    386 }
    387 
    388 char *
    389 Xutf8ResetIC(XIC ic)
    390 {
    391     if (ic->core.im) {
    392 	if (ic->methods->utf8_reset)
    393 	    return (*ic->methods->utf8_reset)(ic);
    394 	else if (ic->methods->mb_reset)
    395 	    return (*ic->methods->mb_reset)(ic);
    396     }
    397     return (char *)NULL;
    398 }
    399 
    400 int
    401 XmbLookupString(XIC ic, XKeyEvent *ev, char *buffer, int nbytes,
    402 		KeySym *keysym, Status *status)
    403 {
    404     if (ic->core.im)
    405 	return (*ic->methods->mb_lookup_string) (ic, ev, buffer, nbytes,
    406 						 keysym, status);
    407     return XLookupNone;
    408 }
    409 
    410 int
    411 XwcLookupString(XIC ic, XKeyEvent *ev, wchar_t *buffer, int nchars,
    412 		KeySym *keysym, Status *status)
    413 {
    414     if (ic->core.im)
    415 	return (*ic->methods->wc_lookup_string) (ic, ev, buffer, nchars,
    416 						 keysym, status);
    417     return XLookupNone;
    418 }
    419 
    420 int
    421 Xutf8LookupString(XIC ic, XKeyEvent *ev, char *buffer, int nbytes,
    422 		  KeySym *keysym, Status *status)
    423 {
    424     if (ic->core.im) {
    425 	if (ic->methods->utf8_lookup_string)
    426 	    return (*ic->methods->utf8_lookup_string) (ic, ev, buffer, nbytes,
    427 						   	keysym, status);
    428 	else if (ic->methods->mb_lookup_string)
    429 	    return (*ic->methods->mb_lookup_string) (ic, ev, buffer, nbytes,
    430 						   	keysym, status);
    431     }
    432     return XLookupNone;
    433 }
    434