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Diffstat (limited to 'src/raster.cpp')
| -rw-r--r-- | src/raster.cpp | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/src/raster.cpp b/src/raster.cpp new file mode 100644 index 0000000..a9e973a --- /dev/null +++ b/src/raster.cpp @@ -0,0 +1,153 @@ +/* + * 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; +} + |