237 lines
6.7 KiB
C++
237 lines
6.7 KiB
C++
/*************************************************************************
|
||
*
|
||
* OpenOffice.org - a multi-platform office productivity suite
|
||
*
|
||
* $RCSfile: himgutil.cpp,v $
|
||
*
|
||
* $Revision: 1.3 $
|
||
*
|
||
* last change: $Author: rt $ $Date: 2005-09-07 16:35:01 $
|
||
*
|
||
* The Contents of this file are made available subject to
|
||
* the terms of GNU Lesser General Public License Version 2.1.
|
||
*
|
||
*
|
||
* GNU Lesser General Public License Version 2.1
|
||
* =============================================
|
||
* Copyright 2005 by Sun Microsystems, Inc.
|
||
* 901 San Antonio Road, Palo Alto, CA 94303, USA
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Lesser General Public
|
||
* License version 2.1, as published by the Free Software Foundation.
|
||
*
|
||
* 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
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser 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
|
||
*
|
||
************************************************************************/
|
||
|
||
#include "precompile.h"
|
||
|
||
#include <stdio.h>
|
||
#include <ctype.h>
|
||
#include <string.h>
|
||
|
||
#include "hwplib.h"
|
||
#include "htags.h"
|
||
#include "himgutil.h"
|
||
|
||
const char *GetPictureFilename(const char *picname)
|
||
{
|
||
#ifdef _WIN32
|
||
return picname;
|
||
#else /* UNIX */
|
||
static char fname[256], *ptr;
|
||
|
||
if (picname[1] == ':')
|
||
ptr = strcpy(fname, picname + 3);
|
||
else
|
||
ptr = strcpy(fname, picname);
|
||
|
||
while (*ptr)
|
||
{
|
||
if (*ptr == '\\')
|
||
*ptr = DIRSEP;
|
||
ptr++;
|
||
}
|
||
if (access(fname, 0) != -1)
|
||
return fname;
|
||
else if ((ptr = strrchr(fname, DIRSEP)) && access(ptr + 1, 0) != -1)
|
||
return ptr + 1;
|
||
|
||
/* <20>ҹ<EFBFBD><D2B9>ڷ<EFBFBD> */
|
||
ptr = fname;
|
||
while (*ptr)
|
||
{
|
||
*ptr = tolower(*ptr);
|
||
ptr++;
|
||
}
|
||
if (access(fname, 0) != -1)
|
||
return fname;
|
||
else if ((ptr = strrchr(fname, '/')) && access(ptr + 1, 0) != -1)
|
||
return ptr + 1;
|
||
return 0;
|
||
#endif /* !_WIN32 */
|
||
}
|
||
|
||
|
||
static int ImageMagicType(const uchar * magicno)
|
||
{
|
||
int rv = RFT_UNKNOWN;
|
||
|
||
if (strncmp((char *) magicno, "GIF87a", 6) == 0 ||
|
||
strncmp((char *) magicno, "GIF89a", 6) == 0)
|
||
rv = RFT_GIF;
|
||
else if (strncmp((char *) magicno, "VIEW", 4) == 0 ||
|
||
strncmp((char *) magicno, "WEIV", 4) == 0)
|
||
rv = RFT_PM;
|
||
else if (magicno[0] == 'P' && magicno[1] >= '1' && magicno[1] <= '6')
|
||
rv = RFT_PBM;
|
||
/* note: have to check XPM before XBM, as first 2 chars are the same */
|
||
else if (strncmp((char *) magicno, "/* XPM */", 9) == 0)
|
||
rv = RFT_XPM;
|
||
else if (strncmp((char *) magicno, "#define", 7) == 0 ||
|
||
(magicno[0] == '/' && magicno[1] == '*'))
|
||
rv = RFT_XBM;
|
||
else if (magicno[0] == 0x59 && (magicno[1] & 0x7f) == 0x26 &&
|
||
magicno[2] == 0x6a && (magicno[3] & 0x7f) == 0x15)
|
||
rv = RFT_SUNRAS;
|
||
else if (magicno[0] == 'B' && magicno[1] == 'M')
|
||
rv = RFT_BMP;
|
||
else if (magicno[0] == 0x52 && magicno[1] == 0xcc)
|
||
rv = RFT_UTAHRLE;
|
||
else if ((magicno[0] == 0x01 && magicno[1] == 0xda) ||
|
||
(magicno[0] == 0xda && magicno[1] == 0x01))
|
||
rv = RFT_IRIS;
|
||
else if (magicno[0] == 0x1f && magicno[1] == 0x9d)
|
||
rv = RFT_COMPRESS;
|
||
else if (magicno[0] == 0x0a && magicno[1] <= 5)
|
||
rv = RFT_PCX;
|
||
else if (strncmp((char *) magicno, "FORM", 4) == 0 &&
|
||
strncmp((char *) magicno + 8, "ILBM", 4) == 0)
|
||
rv = RFT_IFF;
|
||
else if (magicno[0] == 0 && magicno[1] == 0 &&
|
||
magicno[2] == 2 && magicno[3] == 0 &&
|
||
magicno[4] == 0 && magicno[5] == 0 &&
|
||
magicno[6] == 0 && magicno[7] == 0)
|
||
rv = RFT_TARGA;
|
||
else if (magicno[4] == 0x00 && magicno[5] == 0x00 &&
|
||
magicno[6] == 0x00 && magicno[7] == 0x07)
|
||
rv = RFT_XWD;
|
||
else if (strncmp((char *) magicno, "SIMPLE ", 8) == 0 &&
|
||
magicno[29] == 'T')
|
||
rv = RFT_FITS;
|
||
else if (magicno[0] == 0xff && magicno[1] == 0xd8 && magicno[2] == 0xff)
|
||
rv = RFT_JFIF;
|
||
else if ((magicno[0] == 'M' && magicno[1] == 'M') ||
|
||
(magicno[0] == 'I' && magicno[1] == 'I'))
|
||
rv = RFT_TIFF;
|
||
else if (strncmp((char *) magicno, "%!", 2) == 0 ||
|
||
strncmp((char *) magicno, "\004%!", 3) == 0)
|
||
rv = RFT_PS;
|
||
else if (strncmp((char *) magicno, "\xd7\xcd\xc6\x9a", 4) == 0 ||
|
||
strncmp((char *) magicno, "\x01\x00\x09\x00\x00\x03", 6) == 0)
|
||
rv = RFT_WMF;
|
||
|
||
return rv;
|
||
}
|
||
|
||
|
||
int ReadFileType(const char *fname)
|
||
{
|
||
FILE *fp;
|
||
uchar magicno[30]; /* first 30 bytes of file */
|
||
int n;
|
||
|
||
if (!fname)
|
||
return RFT_ERROR; /* shouldn't happen */
|
||
|
||
fp = fopen(fname, "rb");
|
||
if (!fp)
|
||
return RFT_ERROR;
|
||
|
||
n = fread(magicno, 1, 30, fp);
|
||
fclose(fp);
|
||
|
||
if (n < 30)
|
||
return RFT_UNKNOWN; /* files less than 30 bytes long... */
|
||
|
||
return ImageMagicType(magicno);
|
||
}
|
||
|
||
|
||
const char *GetEmbImgname(const EmPicture * empic)
|
||
{
|
||
static char fname[256];
|
||
char *ptr, *ext;
|
||
|
||
tmpnam(fname);
|
||
if (!empic || !empic->name[0] || !(ptr = strrchr(fname, DIRSEP)))
|
||
return NULL;
|
||
switch (ImageMagicType((uchar *) empic->data))
|
||
{
|
||
case RFT_GIF:
|
||
ext = "gif";
|
||
break;
|
||
case RFT_PM:
|
||
ext = "pm";
|
||
break;
|
||
case RFT_PBM:
|
||
ext = "pbm";
|
||
break;
|
||
case RFT_XBM:
|
||
ext = "xbm";
|
||
break;
|
||
case RFT_SUNRAS:
|
||
ext = "ras";
|
||
break;
|
||
case RFT_BMP:
|
||
ext = "bmp";
|
||
break;
|
||
case RFT_UTAHRLE:
|
||
ext = "rle";
|
||
break;
|
||
case RFT_PCX:
|
||
ext = "pcx";
|
||
break;
|
||
case RFT_JFIF:
|
||
ext = "jpg";
|
||
break;
|
||
case RFT_TIFF:
|
||
ext = "tif";
|
||
break;
|
||
case RFT_PDSVICAR:
|
||
ext = "pds";
|
||
break;
|
||
case RFT_PS:
|
||
ext = "ps";
|
||
break;
|
||
case RFT_IFF:
|
||
ext = "iff";
|
||
break;
|
||
case RFT_TARGA:
|
||
ext = "tga";
|
||
break;
|
||
case RFT_XPM:
|
||
ext = "xpm";
|
||
break;
|
||
case RFT_XWD:
|
||
ext = "xwd";
|
||
break;
|
||
case RFT_WMF:
|
||
ext = "wmf";
|
||
break;
|
||
default:
|
||
ext = "666";
|
||
break;
|
||
};
|
||
sprintf(ptr + 1, "mz_%s.%s", empic->name, ext);
|
||
return fname;
|
||
}
|