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/* +-------------------------------------------------------------------+ */
/* | Copyright 1993, Jean-Pierre Demailly | */
/* | <demailly@fourier.ujf-grenoble.fr> | */
/* | | */
/* | Permission to use, copy, modify, and to distribute this software | */
/* | and its documentation for any purpose is hereby granted without | */
/* | fee, provided that the above copyright notice appear in all | */
/* | copies and that both that copyright notice and this permission | */
/* | notice appear in supporting documentation. There is no | */
/* | representations about the suitability of this software for | */
/* | any purpose. this software is provided "as is" without express | */
/* | or implied warranty. | */
/* | | */
/* +-------------------------------------------------------------------+ */
/* $Id: readWriteLXP.c,v 1.14 2005/03/20 20:15:34 demailly Exp $ */
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include "xpaint.h"
#include "image.h"
#include "rwTable.h"
#include "libpnmrw.h"
#if defined(sco) || defined(__CYGWIN__)
#include <time.h>
#else
#include <time.h>
#include <sys/time.h>
#endif
#include <string.h>
#include <X11/Intrinsic.h>
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
extern void * xmalloc(size_t n);
extern FILE * openTemp(char **np);
extern void removeTemp(void);
extern Image * ReadScriptC(char *file);
extern int WritePNGn(char *file, Image *image);
extern int writeMagic(char *file, Image *image);
extern void AddFileToGlobalList(char * file);
static char tmpdir[256];
static int width0=0, height0=0;
static char *Basename(char *file)
{
char *ptr;
if (!file) return NULL;
ptr = strrchr(file, '/');
if (!ptr) return file;
return ptr+1;
}
char * ArchiveFile(char * file)
{
static char path[256];
struct stat buf;
Image *image;
Pixmap pix;
Colormap cmap;
Visual *visual;
Screen *screen;
GC gc;
sprintf(path, "%s/%s", tmpdir, file);
if (stat(path, &buf)!=0) {
if (width0==0 || height0==0) {
width0 = Global.default_width;
height0 = Global.default_height;
}
screen = XtScreen(Global.toplevel);
visual = DefaultVisualOfScreen(screen);
cmap = XCreateColormap(XtDisplay(Global.toplevel),
RootWindowOfScreen(screen), visual, AllocNone);
pix = XCreatePixmap(Global.display, XtWindow(Global.toplevel),
width0, height0,
DefaultDepthOfScreen(screen));
gc = XCreateGC(Global.display, pix, 0, 0);
XSetForeground(Global.display, gc, WhitePixelOfScreen(screen));
XFillRectangle(Global.display, pix, gc, 0, 0, width0, height0);
image = PixmapToImage(Global.toplevel, pix, cmap);
writeMagic(path, image);
ImageDelete(image);
XFreePixmap(Global.display, pix);
XFreeColormap(Global.display, cmap);
XFreeGC(Global.display, gc);
}
AddFileToGlobalList(path);
return path;
}
void * LoadLayers(char ** files)
{
static Image **image = NULL;
int i;
width0 = 0;
height0 = 0;
i = 0;
while (files[i]) {
image = (Image **)realloc(image, (i+1)*sizeof(Image *));
image[i] = ImageFromFile(ArchiveFile(files[i]));
if (width0==0 && image[i]) {
width0 = image[i]->width;
height0 = image[i]->height;
}
++i;
}
return (void *)image;
}
/* Test LXP format */
/* LXP is just a plain X.tar.gz archive containing a single directory ./
* and a C file image.c which may combine any number of other files
* (images, other .c files of .h headers)
*/
int
TestLXP(char *file)
{
char header[12];
FILE *fp = fopen(file, "rb");
if (!fp)
return 0;
fread(header, 1, 8, fp);
fclose(fp);
if (!strncmp(header, "\037\213", 2))
return 1;
else
return 0;
}
/* read LXP format */
Image *
ReadLXP(char *file)
{
Image *image;
char buf[2048];
char *home;
if (!TestLXP(file)) return NULL;
home = getenv("HOME");
if (!home) return NULL;
sprintf(tmpdir, "%s/.xpaint/tmp/%s_files", home, Basename(file));
sprintf(buf, "mkdir -p %s ; ln -s -f %s %s ; cd %s ; tar xvfz %s",
tmpdir, file, tmpdir, tmpdir, file);
system(buf);
sprintf(buf, "%s/image.c", tmpdir);
AddFileToGlobalList(buf);
image = ReadScriptC(buf);
return image;
}
int WriteLXP(char *file, Image * image)
{
char buf[8192];
char *home;
home = getenv("HOME");
if (!home) return 0;
sprintf(tmpdir, "%s/.xpaint/tmp/%s_dir", home, Basename(file));
sprintf(buf, "mkdir -p \"%s\"", tmpdir);
system(buf);
sprintf(buf, "%s/file.png", tmpdir);
WritePNGn(buf, image);
sprintf(buf, "cp -p -f %s/XPaintIcon.xpm \"%s/XPaintIcon.xpm\"",
SHAREDIR, tmpdir);
system(buf);
sprintf(buf, "cp -p -f %s/c_scripts/templates/image.c \"%s/image.c\" ; ( cd \"%s\" ; tar cvfz ../\"%s\" . ) ; mv -f \"%s/../%s\" \"%s\" ; rm -rf \"%s\"",
SHAREDIR, tmpdir, tmpdir, Basename(file), tmpdir,
Basename(file), file, tmpdir);
system(buf);
return 0;
}
|
