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//
// Fl_XBM_Image routines.
//
// Copyright 1997-2016 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
// Contents:
//
// Fl_XBM_Image::Fl_XBM_Image() - Load an XBM file.
//
//
// Include necessary header files...
//
#include <FL/Fl.H>
#include <FL/Fl_XBM_Image.H>
#include <stdio.h>
#include <stdlib.h>
#include <FL/fl_utf8.h>
#include "flstring.h"
//
// 'Fl_XBM_Image::Fl_XBM_Image()' - Load an XBM file.
//
/**
The constructor loads the named XBM file from the given name filename.
The destructor frees all memory and server resources that are used by
the image.
*/
Fl_XBM_Image::Fl_XBM_Image(const char *name) : Fl_Bitmap((const char *)0,0,0) {
FILE *f;
uchar *ptr;
if ((f = fl_fopen(name, "rb")) == NULL) return;
char buffer[1024];
char junk[1024];
int wh[2]; // width and height
int i;
for (i = 0; i<2; i++) {
for (;;) {
if (!fgets(buffer,1024,f)) {
fclose(f);
return;
}
int r = sscanf(buffer,"#define %s %d",junk,&wh[i]);
if (r >= 2) break;
}
}
// skip to data array:
for (;;) {
if (!fgets(buffer,1024,f)) {
fclose(f);
return;
}
if (!strncmp(buffer,"static ",7)) break;
}
// Allocate memory...
w(wh[0]);
h(wh[1]);
int n = ((wh[0]+7)/8)*wh[1];
array = new uchar[n];
// read the data:
for (i = 0, ptr = (uchar *)array; i < n;) {
if (!fgets(buffer,1024,f)) {
fclose(f);
return;
}
const char *a = buffer;
while (*a && i<n) {
unsigned int t;
if (sscanf(a," 0x%x",&t)>0) {
*ptr++ = (uchar)t;
i ++;
}
while (*a && *a++ != ',') {/*empty*/}
}
}
fclose(f);
}
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