StrToBS.c revision 6c321187 
1/* $Xorg: StrToBS.c,v 1.4 2001/02/09 02:03:53 xorgcvs Exp $ */
2
3/*
4
5Copyright 1988, 1998  The Open Group
6
7Permission to use, copy, modify, distribute, and sell this software and its
8documentation for any purpose is hereby granted without fee, provided that
9the above copyright notice appear in all copies and that both that
10copyright notice and this permission notice appear in supporting
11documentation.
12
13The above copyright notice and this permission notice shall be included in
14all copies or substantial portions of the Software.
15
16THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
19OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
20AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22
23Except as contained in this notice, the name of The Open Group shall not be
24used in advertising or otherwise to promote the sale, use or other dealings
25in this Software without prior written authorization from The Open Group.
26
27*/
28
29/* $XFree86: xc/lib/Xmu/StrToBS.c,v 1.6 2001/01/17 19:42:56 dawes Exp $ */
30
31#ifdef HAVE_CONFIG_H
32#include <config.h>
33#endif
34#include <X11/Intrinsic.h>
35#include "Converters.h"
36#include "CharSet.h"
37
38/*
39 * Prototypes
40 */
41static void InitializeQuarks(void);
42
43/*
44 * Initialization
45 */
46static XrmQuark QnotUseful, QwhenMapped, Qalways, Qdefault;
47static Boolean haveQuarks;
48
49/*
50 * Implementation
51 */
52static void
53InitializeQuarks(void)
54{
55  if (!haveQuarks)
56    {
57      char name[11];
58
59      XmuNCopyISOLatin1Lowered(name, XtEnotUseful, sizeof(name));
60      QnotUseful = XrmStringToQuark(name);
61      XmuNCopyISOLatin1Lowered(name, XtEwhenMapped, sizeof(name));
62      QwhenMapped = XrmStringToQuark(name);
63      XmuNCopyISOLatin1Lowered(name, XtEalways, sizeof(name));
64      Qalways = XrmStringToQuark(name);
65      XmuNCopyISOLatin1Lowered(name, XtEdefault, sizeof(name));
66      Qdefault = XrmStringToQuark(name);
67      haveQuarks = True;
68    }
69}
70
71/*ARGSUSED*/
72void
73XmuCvtStringToBackingStore(XrmValue *args, Cardinal *num_args,
74			   XrmValuePtr fromVal, XrmValuePtr toVal)
75{
76    XrmQuark	q;
77  char name[11];
78    static int	backingStoreType;
79
80    if (*num_args != 0)
81        XtWarning("String to BackingStore conversion needs no extra arguments");
82
83  InitializeQuarks();
84  XmuNCopyISOLatin1Lowered(name, (char *)fromVal->addr, sizeof(name));
85
86  q = XrmStringToQuark (name);
87  if (q == QnotUseful)
88	backingStoreType = NotUseful;
89  else if (q == QwhenMapped)
90    	backingStoreType = WhenMapped;
91  else if (q == Qalways)
92	backingStoreType = Always;
93  else if (q == Qdefault)
94    	backingStoreType = Always + WhenMapped + NotUseful;
95  else
96    {
97      XtStringConversionWarning((char *)fromVal->addr, XtRBackingStore);
98      return;
99    }
100  toVal->size = sizeof(int);
101  toVal->addr = (XPointer)&backingStoreType;
102}
103
104/*ARGSUSED*/
105Boolean
106XmuCvtBackingStoreToString(Display *dpy, XrmValuePtr args, Cardinal *num_args,
107			   XrmValuePtr fromVal, XrmValuePtr toVal,
108			   XtPointer *data)
109{
110  static String buffer;
111  Cardinal size;
112
113  switch (*(int *)fromVal->addr)
114    {
115    case NotUseful:
116      buffer = XtEnotUseful;
117      break;
118    case WhenMapped:
119      buffer = XtEwhenMapped;
120      break;
121    case Always:
122      buffer = XtEalways;
123      break;
124    case (Always + WhenMapped + NotUseful):
125      buffer = XtEdefault;
126      break;
127    default:
128      XtWarning("Cannot convert BackingStore to String");
129      toVal->addr = NULL;
130      toVal->size = 0;
131      return (False);
132    }
133
134  size = strlen(buffer) + 1;
135  if (toVal->addr != NULL)
136    {
137      if (toVal->size < size)
138	{
139	  toVal->size = size;
140	  return (False);
141	}
142      strcpy((char *)toVal->addr, buffer);
143    }
144  else
145    toVal->addr = (XPointer)buffer;
146  toVal->size = sizeof(String);
147
148  return (True);
149}
150