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/***************************************************************************
pixmapbarcode.cpp - description
-------------------
begin : Mon Nov 22 2004
copyright : (C) 2004 by Dominik Seichter
email : domseichter@web.de
***************************************************************************/
/***************************************************************************
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; either version 2 of the License, or
(at your option) any later version.
***************************************************************************/
#ifndef PIXMAPBARCODE_H
#define PIXMAPBARCODE_H
#include "barkodeengine.h"
#include <tqpixmap.h>
class KTempFile;
class TQPainter;
class PDF417Options : public BarkodeEngineOptions {
public:
PDF417Options();
const PDF417Options& operator=( const BarkodeEngineOptions& rhs );
void defaults();
void load( const TQDomElement* tag );
void save( TQDomElement* tag );
inline int row() const { return m_row; }
inline int col() const { return m_col; }
inline int err() const { return m_err; }
inline void setRow( int r ) { m_row = r; }
inline void setCol( int r ) { m_col = r; }
inline void setErr( int r ) { m_err = r; }
private:
int m_row;
int m_col;
int m_err;
};
/**
* A pixmap based barcode engine which
* uses different commandline tools to
* generate barcodes.
* This class is a port of the old BarCode
* class to the new Barkode interface.
*
* @author Dominik Seichter
*/
class PixmapBarcode : public BarkodeEngine
{
public:
PixmapBarcode();
~PixmapBarcode();
const PixmapBarcode & operator=( const BarkodeEngine & rhs );
inline EEngine engine() const;
const TQSize size() const;
void update( const TQPaintDevice* device );
void drawBarcode( TQPainter & painter, int x, int y );
inline BarkodeEngineOptions* options();
private:
bool createPixmap( TQPixmap* target, int resx, int resy );
void createBarcode( TQPixmap* target, const TQPaintDevice* device );
bool createPdf417( KTempFile* output );
//TQString createTBarcodeCmd();
virtual bool createPostscript( char** postscript, long* postscript_size );
/** Mage sure the temporaray file @p file
* gets closed and deleted properly
*/
void cleanUp( KTempFile* file, TQPixmap* target );
/**
* Cut the barcode either on the top or
* on the bottom, depending on the text position.
*g
* @param pic the TQPixmap that will be cutted
* @param cut a value between 0.0 and 1.0. If cut = 1.0
* then no cut will happen, if cut = 0.5, half of
* the barcode is going to be cutted away.
*/
TQPixmap cut( TQPixmap* pic, double cut );
/**
* Add a margin to the TQPixmap pic.
* @param pic the TQPixmap pic which should get a margin
*/
TQPixmap addMargin( TQPixmap* pic );
protected:
/** Creates a pipe and read the data returned by the command into a buffer.
* \param command the command to execute
* \param buffer pointer to a buffer, will be malloc'ed and has to be free'd
* \param buffer_size pointer to a long where the size of the buffer will be stored
* \returns true if all data could be read sucessfully otherwise false.
*/
bool readFromPipe( const char* command, char** buffer, long* buffer_size );
/**
* \param postscript a postscript program
* \param postscript_size length of the postscript program
* \returns the BoundingBox of the postscript or EPS file
* so that it can be cropped correctly
*/
virtual TQRect bbox( const char* postscript, long postscript_size );
private:
TQPixmap p;
PDF417Options m_pdf417_options;
};
EEngine PixmapBarcode::engine() const
{
return PIXMAP;
}
BarkodeEngineOptions* PixmapBarcode::options()
{
return &m_pdf417_options;
}
#endif
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