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xpm
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XpmRdFToData.c
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C/C++ Source or Header
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2000-07-29
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4KB
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116 lines
/* Copyright 1990,91 GROUPE BULL -- See license conditions in file COPYRIGHT */
/*****************************************************************************\
* XpmRdFToData.c: *
* *
* XPM library *
* Parse an XPM file and create an array of strings corresponding to it. *
* *
* Developed by Dan Greening dgreen@cs.ucla.edu / dgreen@sti.com *
\*****************************************************************************/
#include "xpmP.h"
int
XpmReadFileToData(filename, data_return)
char *filename;
char ***data_return;
{
xpmData mdata;
char buf[BUFSIZ];
int l, n = 0;
XpmAttributes attributes;
xpmInternAttrib attrib;
int ErrorStatus;
XGCValues gcv;
GC gc;
attributes.valuemask = XpmReturnPixels|XpmReturnInfos|XpmReturnExtensions;
/*
* initialize return values
*/
if (data_return) {
*data_return = NULL;
}
if ((ErrorStatus = xpmReadFile(filename, &mdata)) != XpmSuccess)
return (ErrorStatus);
xpmInitInternAttrib(&attrib);
/*
* parse the header file
*/
mdata.Bos = '\0';
mdata.Eos = '\n';
mdata.Bcmt = mdata.Ecmt = NULL;
xpmNextWord(&mdata, buf); /* skip the first word */
l = xpmNextWord(&mdata, buf); /* then get the second word */
if ((l == 3 && !strncmp("XPM", buf, 3)) ||
(l == 4 && !strncmp("XPM2", buf, 4))) {
if (l == 3)
n = 1; /* handle XPM as XPM2 C */
else {
l = xpmNextWord(&mdata, buf); /* get the type key word */
/*
* get infos about this type
*/
while (xpmDataTypes[n].type
&& strncmp(xpmDataTypes[n].type, buf, l))
n++;
}
if (xpmDataTypes[n].type) {
if (n == 0) { /* natural type */
mdata.Bcmt = xpmDataTypes[n].Bcmt;
mdata.Ecmt = xpmDataTypes[n].Ecmt;
xpmNextString(&mdata); /* skip the end of headerline */
mdata.Bos = xpmDataTypes[n].Bos;
} else {
xpmNextString(&mdata); /* skip the end of headerline */
mdata.Bcmt = xpmDataTypes[n].Bcmt;
mdata.Ecmt = xpmDataTypes[n].Ecmt;
mdata.Bos = xpmDataTypes[n].Bos;
mdata.Eos = '\0';
xpmNextString(&mdata); /* skip the assignment line */
}
mdata.Eos = xpmDataTypes[n].Eos;
ErrorStatus = xpmParseData(&mdata, &attrib, &attributes);
} else
ErrorStatus = XpmFileInvalid;
} else
ErrorStatus = XpmFileInvalid;
if (ErrorStatus == XpmSuccess) {
int i;
/* maximum of allocated pixels will be the number of colors */
attributes.pixels = (Pixel *) malloc(sizeof(Pixel) * attrib.ncolors);
attrib.xcolors = (XColor*) malloc(sizeof(XColor) * attrib.ncolors);
if (!attributes.pixels || !attrib.xcolors)
ErrorStatus = XpmNoMemory;
else {
for (i = 0; i < attrib.ncolors; i++) {
/* Fake colors */
attrib.xcolors[i].pixel = attributes.pixels[i] = i + 1;
}
xpmSetAttributes(&attrib, &attributes);
if (!(attrib.colorStrings =
(char**) malloc(attributes.ncolors * sizeof(char*))))
ErrorStatus = XpmNoMemory;
else {
attrib.ncolors = attributes.ncolors;
attributes.mask_pixel = attrib.mask_pixel;
for (i = 0; i < attributes.ncolors; i++)
attrib.colorStrings[i] = attributes.colorTable[i][0];
}
}
}
if (ErrorStatus == XpmSuccess)
ErrorStatus = xpmCreateData(data_return, &attrib, &attributes);
XpmFreeAttributes(&attributes);
xpmFreeInternAttrib(&attrib);
XpmDataClose(&mdata);
return (ErrorStatus);
}