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/*
This file is part of KDE FAX image loading library
Copyright (c) 2005 Helge Deller <deller@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef _LIBKFAXIMAGE_H_
#define _LIBKFAXIMAGE_H_
#include <qobject.h>
#include <qstring.h>
#include <qimage.h>
#include <qptrlist.h>
#include <kdelibs_export.h>
class pagenode;
/**
* This is KFaxImage, a class for loading FAX files under KDE
*
* @short KFaxImage
* @author Helge Deller
* @version 0.1
*
*
* Standard fax dpi values:
* ------------------------
* Standard: 203 dpi x 98 lpi
* Fine: 203 dpi x 196 lpi
* Super Fine: 203 dpi y 392 lpi, or
* 406 dpi x 392 lpi
*/
#define KFAX_DPI_STANDARD QPoint(203,98)
#define KFAX_DPI_FINE QPoint(203,196)
#define KFAX_DPI_SUPERFINE QPoint(406,392)
class KDE_EXPORT KFaxImage : public QObject
{
Q_OBJECT
public:
/**
* KFaxImage - the KDE FAX loader class
* constructor.
* @param filename: an optional FAX file which should be loaded.
* @see: numPages
*/
KFaxImage( const QString &filename = QString::null, QObject *parent = 0, const char *name = 0 );
/**
* Destructor
*
* releases internal allocated memory.
*/
virtual ~KFaxImage();
/**
* loads the FAX image and returns true when sucessful.
* @param filename: the file which should be loaded.
* @return boolean value on success or failure
* @see: numPages
* @see: errorString
*/
bool loadImage( const QString &filename );
/**
* returns currently loaded image file name.
* @return FAX filename
*/
QString filename() { return m_filename; };
/**
* returns number of pages which are stored in the FAX file
* @return page count
*/
unsigned int numPages() const { return m_pagenodes.count(); };
/**
* returns a QImage which holds the contents of page pageNr
* @param pageNr: page number (starting with 0)
* @return QImage of the page pageNr
*/
QImage page( unsigned int pageNr );
/**
* returns the DPI (dots per inch) of page pageNr
* @param pageNr: page number (starting with 0)
* @return a QPoint value with the DPIs in X- and Y-direction
*/
QPoint page_dpi( unsigned int pageNr );
/**
* returns the physical pixels of page pageNr
* @param pageNr: page number (starting with 0)
* @return a QSize value with the width and height of the image
*/
QSize page_size( unsigned int pageNr );
/**
* @return a user-visible, translated error string
*/
const QString errorString() const { return m_errorString; };
private:
/**
* private member variables
*/
QString m_filename;
QString m_errorString;
typedef QPtrList<pagenode> t_PageNodeList;
t_PageNodeList m_pagenodes;
/**
* private member functions
*/
void reset();
void kfaxerror(const QString& error);
pagenode *AppendImageNode(int type);
bool NewImage(pagenode *pn, int w, int h);
void FreeImage(pagenode *pn);
unsigned char *getstrip(pagenode *pn, int strip);
int GetPartImage(pagenode *pn, int n);
int GetImage(pagenode *pn);
pagenode *notefile(int type);
int notetiff();
void badfile(pagenode *pn);
};
#endif /* _LIBKFAXIMAGE_H_ */
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