fltk/src/Fl_XBM_Image.cxx
Matthias Melcher d952d9b9d6 Fixed signedness of argument to sscanf
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@4547 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2005-08-29 20:11:48 +00:00

107 lines
2.3 KiB
C++

//
// "$Id$"
//
// Fl_XBM_Image routines.
//
// Copyright 1997-2005 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.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 "flstring.h"
//
// 'Fl_XBM_Image::Fl_XBM_Image()' - Load an XBM file.
//
Fl_XBM_Image::Fl_XBM_Image(const char *name) : Fl_Bitmap((const char *)0,0,0) {
FILE *f;
uchar *ptr;
if ((f = 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++ != ',');
}
}
fclose(f);
}
//
// End of "$Id$".
//