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/*
* raster.cpp (C) 2006, Aurélien Croc (AP²C)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id: raster.cpp 43 2006-11-26 03:12:21Z ap2c $
*
*/
#include "raster.h"
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
//#include <cups/ppd.h>
#include "error.h"
/*
* Constructeur - Destructeur
* Init - Uninit
*/
Raster::Raster(const char *job, const char *user, const char *title,
const char *copies, const char *options, const char *file)
{
_jobId = job;
_user = user;
_title = title;
_copies = copies;
_options = options;
_file = file;
_width = 0;
_height = 0;
_lineSize = 0;
_line = 0;
_page = 0;
_lineBuffer = NULL;
}
Raster::~Raster()
{
unload();
}
/*
* Chargement de l'image
* Load the image
*/
void Raster::unload()
{
if (_lineBuffer)
delete[] _lineBuffer;
cupsRasterClose(_ras);
}
int Raster::load()
{
// Open the raster file if needed
if (_file && (_fd = open(_file, O_RDONLY)) == -1) {
fprintf(stderr, _("ERROR: Unable to open the raster file %s\n"),
_file);
sleep(1);
return -1;
}
_ras = cupsRasterOpen(_fd, CUPS_RASTER_READ);
return 0;
}
int Raster::loadPage(Printer *printer)
{
if (!cupsRasterReadHeader(_ras, &_header)) {
DEBUG("Plus de page");
return 1;
}
_width = _header.cupsWidth;
_height = _header.cupsHeight;
_totalLines = _height;
_lineSize = _header.cupsBytesPerLine;
_line = 0;
_page++;
// Configure the printer
printer->setResolution(_header.HWResolution[0],_header.HWResolution[1]);
printer->setPageSizeX(_header.PageSize[0]);
printer->setPageSizeY(_header.PageSize[1]);
printer->setMarginX(_header.ImagingBoundingBox[0]);
printer->setMarginY(_header.ImagingBoundingBox[1]);
printer->setAreaX(_header.PageSize[0] - _header.ImagingBoundingBox[0]);
printer->setAreaY(_header.PageSize[1] - _header.ImagingBoundingBox[1]);
printer->setPrintableX(_header.ImagingBoundingBox[2] -
_header.ImagingBoundingBox[0]);
printer->setPrintableY(_header.ImagingBoundingBox[3] -
_header.ImagingBoundingBox[1]);
// Get some document informations
_color = _header.cupsColorSpace == CUPS_CSPACE_K ? false : true;
printer->setCompVersion(_header.cupsCompression);
if (_color) {
_totalLines = _totalLines * 4;
_lineSize = _lineSize >> 2;
}
return 0;
}
/*
* Lecture d'une ligne
* Read a line
*/
int Raster::readLine()
{
if (!_ras)
return -1;
if (!_lineBuffer)
_lineBuffer = new unsigned char[_lineSize];
/*
* so that we can round up to bandHeight, we return an empty line
* after reading more than _height lines.
* -- Keith White
*/
if (_line >= _totalLines) {
memset(_lineBuffer, 0x00, _lineSize);
return _lineSize;
}
if (cupsRasterReadPixels(_ras, _lineBuffer, _lineSize) < 1) {
ERROR(_("Raster::readLine: Cannot read image data"));
return -1;
}
_line++;
return _lineSize;
}
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