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      1 
      2 /*
      3 
      4 Copyright 1990, 1998  The Open Group
      5 
      6 Permission to use, copy, modify, distribute, and sell this software and its
      7 documentation for any purpose is hereby granted without fee, provided that
      8 the above copyright notice appear in all copies and that both that
      9 copyright notice and this permission notice appear in supporting
     10 documentation.
     11 
     12 The above copyright notice and this permission notice shall be included in
     13 all copies or substantial portions of the Software.
     14 
     15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     18 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     19 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     20 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     21 
     22 Except as contained in this notice, the name of The Open Group shall not be
     23 used in advertising or otherwise to promote the sale, use or other dealings
     24 in this Software without prior written authorization from The Open Group.
     25 
     26 */
     27 
     28 #ifdef HAVE_CONFIG_H
     29 #include <config.h>
     30 #endif
     31 #include "Xlibint.h"
     32 #include <X11/Xresource.h>
     33 #include <X11/keysymdef.h>
     34 #include "Xresinternal.h"
     35 
     36 #include <stdio.h> /* sprintf */
     37 
     38 #define NEEDVTABLE
     39 #include "ks_tables.h"
     40 #include "Key.h"
     41 
     42 
     43 typedef struct _GRNData {
     44     char *name;
     45     XrmRepresentation type;
     46     XrmValuePtr value;
     47 } GRNData;
     48 
     49 /*ARGSUSED*/
     50 static Bool
     51 SameValue(
     52     XrmDatabase*	db,
     53     XrmBindingList      bindings,
     54     XrmQuarkList	quarks,
     55     XrmRepresentation*  type,
     56     XrmValuePtr		value,
     57     XPointer		data
     58 )
     59 {
     60     GRNData *gd = (GRNData *)data;
     61 
     62     if ((*type == gd->type) && (value->size == gd->value->size) &&
     63 	!strncmp((char *)value->addr, (char *)gd->value->addr, value->size))
     64     {
     65 	gd->name = XrmQuarkToString(*quarks); /* XXX */
     66 	return True;
     67     }
     68     return False;
     69 }
     70 
     71 char *XKeysymToString(KeySym ks)
     72 {
     73     XrmDatabase keysymdb;
     74 
     75     if (!ks || (ks & ((unsigned long) ~0x1fffffff)) != 0)
     76 	return ((char *)NULL);
     77     if (ks == XK_VoidSymbol)
     78 	ks = 0;
     79     if (ks <= 0x1fffffff)
     80     {
     81 	unsigned char val1 = ks >> 24;
     82 	unsigned char val2 = (ks >> 16) & 0xff;
     83 	unsigned char val3 = (ks >> 8) & 0xff;
     84 	unsigned char val4 = ks & 0xff;
     85 	int i = ks % VTABLESIZE;
     86 	int h = i + 1;
     87 	int n = VMAXHASH;
     88 	int idx;
     89 	while ((idx = hashKeysym[i]))
     90 	{
     91 	    const unsigned char *entry = &_XkeyTable[idx];
     92 	    if ((entry[0] == val1) && (entry[1] == val2) &&
     93                 (entry[2] == val3) && (entry[3] == val4))
     94 		return ((char *)entry + 4);
     95 	    if (!--n)
     96 		break;
     97 	    i += h;
     98 	    if (i >= VTABLESIZE)
     99 		i -= VTABLESIZE;
    100 	}
    101     }
    102 
    103     if ((keysymdb = _XInitKeysymDB()))
    104     {
    105 	char buf[9];
    106 	XrmValue resval;
    107 	XrmQuark empty = NULLQUARK;
    108 	GRNData data;
    109 
    110 	snprintf(buf, sizeof(buf), "%lX", ks);
    111 	resval.addr = (XPointer)buf;
    112 	resval.size = (unsigned)strlen(buf) + 1;
    113 	data.name = (char *)NULL;
    114 	data.type = XrmPermStringToQuark("String");
    115 	data.value = &resval;
    116 	(void)XrmEnumerateDatabase(keysymdb, &empty, &empty, XrmEnumAllLevels,
    117 				   SameValue, (XPointer)&data);
    118         if (data.name)
    119 	    return data.name;
    120     }
    121     if (ks >= 0x01000100 && ks <= 0x0110ffff) {
    122         KeySym val = ks & 0xffffff;
    123         char s[10];
    124         int i;
    125         XrmQuark q;
    126         if (val & 0xff0000)
    127             i = 10;
    128         else
    129             i = 6;
    130         i--;
    131         s[i--] = '\0';
    132         for (; i; i--){
    133             unsigned char val1 = val & 0xf;
    134             val >>= 4;
    135             if (val1 < 10)
    136                 s[i] = '0'+ val1;
    137             else
    138                 s[i] = 'A'+ val1 - 10;
    139         }
    140         s[i] = 'U';
    141         q = XrmStringToQuark(s);
    142         if (q != NULLQUARK)
    143             return XrmQuarkToString(q);
    144     }
    145     return ((char *) NULL);
    146 }
    147