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