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/* Change for xpbiff by Yoshikazu Yamamoto(y-yamamt@ics.es.osaka-u.ac.jp) at Oct 19, 1993 */
/* * Last edited: Sep 17 14:39 1991 (mallet) */
/*
* Copyright 1991 Lionel Mallet
*
* 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 name of Lionel MALLET not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission. Lionel MALLET makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* Lionel MALLET DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL Lionel MALLET 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.
*
* Author: Lionel Mallet - SIMULOG
*/
#include <X11/Xlib.h>
#include <X11/Xresource.h>
#include <X11/Xutil.h>
#include <X11/StringDefs.h>
#include <sys/param.h> /* get MAXPATHLEN if possible */
#ifndef MAXPATHLEN
#define MAXPATHLEN 256
#endif
#include <X11/Xmu/CvtCache.h>
#include <X11/xpm.h>
#include <X11/Xmu/Drawing.h>
/*
* LocatePixmapFile - read a pixmap file using the normal defaults
*/
static char **split_path_string();
Pixmap LocatePixmapFile (screen, name, srcname, srcnamelen,
widthp, heightp, mask)
Screen *screen;
char *name;
char *srcname; /* RETURN */
int srcnamelen;
int *widthp, *heightp; /* RETURN */
Pixmap *mask; /* RETURN */
{
Display *dpy = DisplayOfScreen (screen);
Window root = RootWindowOfScreen (screen);
Bool try_plain_name = True;
XmuCvtCache *cache = _XmuCCLookupDisplay (dpy);
char **file_paths;
char filename[MAXPATHLEN];
unsigned int width, height;
int xhot, yhot;
int i;
/*
* look in cache for pixmap path
*/
if (cache) {
if (!cache->string_to_bitmap.bitmapFilePath) {
XrmName xrm_name[2];
XrmClass xrm_class[2];
XrmRepresentation rep_type;
XrmValue value;
xrm_name[0] = XrmStringToName ("bitmapFilePath");
xrm_name[1] = NULL;
xrm_class[0] = XrmStringToClass ("BitmapFilePath");
xrm_class[1] = NULL;
/*
* XXX - warning, derefing Display * until XDisplayDatabase
*/
if (!XrmGetDatabase(dpy)) {
/* what a hack; need to initialize dpy->db */
(void) XGetDefault (dpy, "", "");
}
if (XrmQGetResource (XrmGetDatabase(dpy), xrm_name, xrm_class,
&rep_type, &value) &&
rep_type == XrmStringToQuark(XtRString)) {
cache->string_to_bitmap.bitmapFilePath =
split_path_string (value.addr);
}
}
file_paths = cache->string_to_bitmap.bitmapFilePath;
}
/*
* Search order:
* 1. name if it begins with / or ./
* 2. "each prefix in file_paths"/name
* 3. BITMAPDIR/name
* 4. name if didn't begin with / or .
*/
#ifndef BITMAPDIR
#define BITMAPDIR "/usr/include/X11/bitmaps"
#endif
for (i = 1; i <= 4; i++) {
char *fn = filename;
Pixmap pixmap;
XpmAttributes attributes;
unsigned char *data;
switch (i) {
case 1:
if (!(name[0] == '/' || (name[0] == '.') && name[1] == '/'))
continue;
fn = name;
try_plain_name = False;
break;
case 2:
if (file_paths && *file_paths) {
sprintf (filename, "%s/%s", *file_paths, name);
file_paths++;
i--;
break;
}
continue;
case 3:
sprintf (filename, "%s/%s", BITMAPDIR, name);
break;
case 4:
if (!try_plain_name) continue;
fn = name;
break;
}
data = NULL;
pixmap = None;
if (XmuReadBitmapDataFromFile (fn, &width, &height, &data,
&xhot, &yhot) == BitmapSuccess) {
pixmap = XCreatePixmapFromBitmapData (dpy, root, (char *) data,
width, height,
(unsigned long) 1,
(unsigned long) 0,
(unsigned int) 1);
XFree ((char *)data);
if (pixmap != None) {
if (widthp) *widthp = (int)width;
if (heightp) *heightp = (int)height;
if (srcname && srcnamelen > 0) {
strncpy (srcname, fn, srcnamelen - 1);
srcname[srcnamelen - 1] = '\0';
}
*mask = None;
return pixmap;
}
}
attributes.visual = DefaultVisualOfScreen (screen);
attributes.colormap = DefaultColormapOfScreen (screen);
attributes.depth = DefaultDepthOfScreen (screen);
attributes.colorsymbols = (ColorSymbol *)NULL;
attributes.numsymbols = 0;
attributes.valuemask = XpmVisual | XpmColormap | XpmDepth;
if (pixmap == None &&
XpmReadPixmapFile (dpy, root, fn, &pixmap, mask,
&attributes) == XpmPixmapSuccess) {
if (widthp) *widthp = (int)attributes.width;
if (heightp) *heightp = (int)attributes.height;
if (srcname && srcnamelen > 0) {
strncpy (srcname, fn, srcnamelen - 1);
srcname[srcnamelen - 1] = '\0';
}
XpmFreeAttributes(&attributes);
return pixmap;
}
}
*mask = None;
return None;
}
/*
* split_path_string - split a colon-separated list into its constituent
* parts; to release, free list[0] and list.
*/
static char **split_path_string (src)
register char *src;
{
int nelems = 1;
register char *dst;
char **elemlist, **elem;
/* count the number of elements */
for (dst = src; *dst; dst++) if (*dst == ':') nelems++;
/* get memory for everything */
dst = (char *) malloc (dst - src + 1);
if (!dst) return NULL;
elemlist = (char **) calloc ((nelems + 1), sizeof (char *));
if (!elemlist) {
free (dst);
return NULL;
}
/* copy to new list and walk up nulling colons and setting list pointers */
strcpy (dst, src);
for (elem = elemlist, src = dst; *src; src++) {
if (*src == ':') {
*elem++ = dst;
*src = '\0';
dst = src + 1;
}
}
*elem = dst;
return elemlist;
}
/*
void _XmuStringToBitmapInitCache (c)
register XmuCvtCache *c;
{
c->string_to_bitmap.bitmapFilePath = NULL;
}
void _XmuStringToBitmapFreeCache (c)
register XmuCvtCache *c;
{
if (c->string_to_bitmap.bitmapFilePath) {
if (c->string_to_bitmap.bitmapFilePath[0])
free (c->string_to_bitmap.bitmapFilePath[0]);
free ((char *) (c->string_to_bitmap.bitmapFilePath));
}
}
*/
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