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/* Copyright 1990-92 GROUPE BULL -- See license conditions in file COPYRIGHT */
/*****************************************************************************\
* misc.c: *
* *
* XPM library *
* Miscellaneous utilities *
* *
* Developed by Arnaud Le Hors *
\*****************************************************************************/
#include "xpmP.h"
/*
* Free the computed color table
*/
xpmFreeColorTable(colorTable, ncolors)
char ***colorTable;
int ncolors;
{
int a, b;
char ***ct, **cts;
if (colorTable) {
for (a = 0, ct = colorTable; a < ncolors; a++, ct++)
if (*ct) {
for (b = 0, cts = *ct; b <= NKEYS; b++, cts++)
if (*cts)
free(*cts);
free(*ct);
}
free(colorTable);
}
}
/*
* Intialize the xpmInternAttrib pointers to Null to know
* which ones must be freed later on.
*/
xpmInitInternAttrib(attrib)
xpmInternAttrib *attrib;
{
attrib->ncolors = 0;
attrib->colorTable = NULL;
attrib->pixelindex = NULL;
attrib->xcolors = NULL;
attrib->colorStrings = NULL;
attrib->mask_pixel = UNDEF_PIXEL;
}
/*
* Free the xpmInternAttrib pointers which have been allocated
*/
xpmFreeInternAttrib(attrib)
xpmInternAttrib *attrib;
{
unsigned int a, ncolors;
char **sptr;
if (attrib->colorTable)
xpmFreeColorTable(attrib->colorTable, attrib->ncolors);
if (attrib->pixelindex)
free(attrib->pixelindex);
if (attrib->xcolors)
free(attrib->xcolors);
if (attrib->colorStrings) {
ncolors = attrib->ncolors;
for (a = 0, sptr = attrib->colorStrings; a < ncolors; a++, sptr++)
if (*sptr)
free(*sptr);
free(attrib->colorStrings);
}
}
/*
* Free array of extensions
*/
XpmFreeExtensions(extensions, nextensions)
XpmExtension *extensions;
int nextensions;
{
unsigned int i, j, nlines;
XpmExtension *ext;
char **sptr;
if (extensions) {
for (i = 0, ext = extensions; i < nextensions; i++, ext++) {
if (ext->name)
free(ext->name);
nlines = ext->nlines;
for (j = 0, sptr = ext->lines; j < nlines; j++, sptr++)
if (*sptr)
free(*sptr);
if (ext->lines)
free(ext->lines);
}
free(extensions);
}
}
/*
* Return the XpmAttributes structure size
*/
XpmAttributesSize()
{
return sizeof(XpmAttributes);
}
/*
* Free the XpmAttributes structure members
* but the structure itself
*/
XpmFreeAttributes(attributes)
XpmAttributes *attributes;
{
if (attributes) {
if (attributes->valuemask & XpmReturnPixels && attributes->pixels) {
free(attributes->pixels);
attributes->pixels = NULL;
attributes->npixels = 0;
}
if (attributes->valuemask & XpmInfos) {
if (attributes->colorTable) {
xpmFreeColorTable(attributes->colorTable, attributes->ncolors);
attributes->colorTable = NULL;
attributes->ncolors = 0;
}
if (attributes->hints_cmt) {
free(attributes->hints_cmt);
attributes->hints_cmt = NULL;
}
if (attributes->colors_cmt) {
free(attributes->colors_cmt);
attributes->colors_cmt = NULL;
}
if (attributes->pixels_cmt) {
free(attributes->pixels_cmt);
attributes->pixels_cmt = NULL;
}
if (attributes->pixels) {
free(attributes->pixels);
attributes->pixels = NULL;
}
}
if (attributes->valuemask & XpmReturnExtensions
&& attributes->nextensions) {
XpmFreeExtensions(attributes->extensions, attributes->nextensions);
attributes->nextensions = 0;
attributes->extensions = NULL;
}
attributes->valuemask = 0;
}
}
/*
* Store into the XpmAttributes structure the required informations stored in
* the xpmInternAttrib structure.
*/
xpmSetAttributes(attrib, attributes)
xpmInternAttrib *attrib;
XpmAttributes *attributes;
{
if (attributes) {
if (attributes->valuemask & XpmReturnInfos) {
attributes->cpp = attrib->cpp;
attributes->ncolors = attrib->ncolors;
attributes->colorTable = attrib->colorTable;
attrib->ncolors = 0;
attrib->colorTable = NULL;
}
attributes->width = attrib->width;
attributes->height = attrib->height;
attributes->valuemask |= XpmSize;
}
}
#ifdef NEED_STRDUP
/*
* in case strdup is not provided by the system here is one
* which does the trick
*/
char *
strdup (s1)
char *s1;
{
char *s2;
int l = strlen(s1) + 1;
if (s2 = (char *) malloc(l))
strncpy(s2, s1, l);
return s2;
}
#endif
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