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/*
* Motif Tools Library, Version 3.1
* $Id$
*
* Written by David Flanagan.
* Copyright (c) 1992-2001 by David Flanagan.
* All Rights Reserved. See the file COPYRIGHT for details.
* This is open source software. See the file LICENSE for details.
* There is no warranty for this software. See NO_WARRANTY for details.
*
* $Log$
* Revision 1.1.1.1 2001/07/18 11:06:03 root
* Initial checkin.
*
* Revision 1.2 2001/06/12 16:25:28 andre
* *** empty log message ***
*
*
*/
#include <ctype.h>
#include <Xmt/Xmt.h>
#include <Xmt/ConvertersP.h>
#include <Xmt/Pixmap.h>
#include <Xmt/AppResP.h>
#include <Xmt/Color.h>
#define skipblanks(s) while (isspace(*s)) s++
/*
* A PixmapList is a StringList optionally followed by a colon and
* a color table. So we invoke the StringList and ColorTable converters,
* and then call XmtGetPixmap.
*/
/* ARGSUSED */
#if NeedFunctionPrototypes
Boolean XmtConvertStringToPixmapList(Display *dpy,
XrmValue *args, Cardinal *num_args,
XrmValue *from, XrmValue *to,
XtPointer *converter_data)
#else
Boolean XmtConvertStringToPixmapList(dpy, args, num_args,
from, to, converter_data)
Display *dpy;
XrmValue *args;
Cardinal *num_args;
XrmValue *from;
XrmValue *to;
XtPointer *converter_data;
#endif
{
char *s = (char *)from->addr;
Widget widget = *(Widget *)args[0].addr;
XmtAppResources *app = XmtGetApplicationResources(widget);
char *strlist;
char *tablestr;
char *mark;
Boolean instring;
Boolean free_string = False;
Boolean free_table = False;
Boolean free_string_list = False;
XrmValue fromval, toval;
XrmValue color_table_args[2];
XmtColorTable table, parent_table;
String *pixmap_names;
XtCacheRef color_table_cache_ref, string_list_cache_ref;
XtCacheRef refs[2];
Boolean status;
Pixmap *pixmaps;
int i, num_items;
table = parent_table = app->colortable;
/* scan for an unquoted colon */
for(tablestr = s, instring=False; *tablestr; tablestr++) {
if (*tablestr == '"') instring = !instring;
if (!instring && (*tablestr == ':')) break;
}
/* if there is one, make a NULL-terminated copy of the leading string list
*/
if (*tablestr) {
free_string = True;
for(mark=tablestr-1; isspace(*mark); mark--);
strlist = XtMalloc(mark-s+2);
strncpy(strlist, s, mark-s+1);
strlist[mark-s+1] = '\0';
}
else
strlist = s;
/*
* convert the string list by calling the string list converter
* directly. This means we will always link that converter. No
* big deal.
*/
fromval.addr = strlist;
fromval.size = strlen(strlist) + 1;
toval.addr = (XPointer) &pixmap_names;
toval.size = sizeof(String *);
status = XtCallConverter(dpy, XmtConvertStringToStringList, NULL, 0,
&fromval, &toval, &string_list_cache_ref);
if (!status) goto error;
else free_string_list = True;
/*
* convert the color table, if defined, and if a converter is registered.
*/
if (*tablestr) {
tablestr++; /* skip colon */
for(; isspace(*tablestr); tablestr++);
if (_XmtColorTableConverter == NULL) {
XmtWarningMsg("XmtConvertStringToPixmapList", "noColor",
"can't convert string '%s' to XmtColorTable.\n\tNo XmtColorTable converter registered.\n\tSee XmtRegisterColorTableConverter();",
tablestr);
}
else {
Screen *screen = XtScreenOfObject(widget);
fromval.addr = tablestr;
fromval.size = strlen(tablestr) + 1;
toval.addr = (XPointer) &table;
toval.size = sizeof(XmtColorTable);
color_table_args[0].addr = (XPointer) &parent_table;
color_table_args[0].size = sizeof(XmtColorTable);
color_table_args[1].addr = (XPointer) &screen;
color_table_args[1].size = sizeof(Screen *);
status = XtCallConverter(dpy, _XmtColorTableConverter,
color_table_args, 2,
&fromval, &toval, &color_table_cache_ref);
if (!status)
XmtWarningMsg("XmtConvertStringToPixmapList", "badColor",
"continuing with default color table.");
else
free_table = True;
}
}
/*
* now convert the list of strings to a list of pixmaps
* First, count the string, and allocate a pixmap array.
* If a pixmap conversion fails and we get None, we convert it
* to XmUNSPECIFIED_PIXMAP, because None would be interpreted as
* terminating the array. Motif widgets like this value better than
* None, but if this converter is used with other widget types, the
* returned array will have to be tested for these values.
*/
for(i=0; pixmap_names[i]; i++);
num_items = i;
pixmaps = (Pixmap *)XtMalloc((num_items+1) * sizeof(Pixmap));
for(i = 0; i < num_items; i++) {
pixmaps[i] = XmtGetPixmap(widget, table, pixmap_names[i]);
if (pixmaps[i] == None) pixmaps[i] = XmUNSPECIFIED_PIXMAP;
}
/* NULL-terminate the array */
pixmaps[num_items] = (Pixmap) NULL;
if (free_string) XtFree(strlist);
if (free_table) {
refs[0] = color_table_cache_ref;
refs[1] = NULL;
XtAppReleaseCacheRefs(XtWidgetToApplicationContext(widget), refs);
}
if (free_string_list) {
refs[0] = string_list_cache_ref;
refs[1] = NULL;
XtAppReleaseCacheRefs(XtWidgetToApplicationContext(widget), refs);
}
done(Pixmap *, pixmaps);
error:
/*
* some other converter has called XtDisplayConversionWarning
* to print the string, so we just have to say that we failed
*/
XmtWarningMsg("XmtCvtStringToPixmapList", "failed",
"Pixmap list conversion failed.");
if (free_string) XtFree(strlist);
return False;
}
/* ARGSUSED */
#if NeedFunctionPrototypes
static void XmtDestroyPixmapList(XtAppContext app, XrmValue *to,
XtPointer converter_data,
XrmValue *args, Cardinal *num_args)
#else
static void XmtDestroyPixmapList(app, to, converter_data, args, num_args)
XtAppContext app;
XrmValue *to;
XtPointer converter_data;
XrmValue *args;
Cardinal *num_args;
#endif
{
Widget widget = *(Widget *)args[0].addr;
Pixmap *pixmaps = *(Pixmap **) to->addr;
int i;
for(i=0; pixmaps[i] != (Pixmap)NULL; i++)
XmtReleasePixmap(widget, pixmaps[i]);
XtFree((char *)pixmaps);
}
#if NeedFunctionPrototypes
void XmtRegisterPixmapListConverter(void)
#else
void XmtRegisterPixmapListConverter()
#endif
{
static Boolean registered = False;
if (!registered) {
registered = True;
XmtRegisterStringListConverter();
XtSetTypeConverter(XtRString, XmtRPixmapList,
XmtConvertStringToPixmapList,
_XmtWidgetConvertArg, 1,
XtCacheNone | XtCacheRefCount,
XmtDestroyPixmapList);
}
}
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