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106 lines
2.9 KiB
106 lines
2.9 KiB
/*
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This file is part of the KDE project
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Copyright (C) 2002 Fred Malabre <fmalabre@yahoo.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef KSPREAD_LEADER_H
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#define KSPREAD_LEADER_H
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#include <KSpreadBaseWorker.h>
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#include <KoFilterChain.h>
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#include <kdebug.h>
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#include <kspread_doc.h>
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#include <KoDocumentInfo.h>
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#include <kspread_map.h>
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namespace KSpread
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{
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/**
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* This class is a leader which will call the callbacks
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* to the worker with your own implementation for your export filter.
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*
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* To write an export filter, just instanciate a leader and
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* implement you own worker based on the BaseWorker.
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*
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* @short A Leader for an KSpread export filter
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* @author Fred Malabre
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* @see KSpreadBaseWorker
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* @see KoFilter
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*/
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class Leader
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{
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public:
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/**
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* Default constructor.
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* Call setWorker() before starting to convert the KSpread document.
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*
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* @param the filter chain of the filter using the lib.
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*/
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Leader(KoFilterChain *filterChain);
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/**
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* This constructor set up the Worker at initialization.
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* convert can be called right away after instanciation of the Leader.
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*
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* @param the filter chain of the filter using the lib.
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* @param implementation of a class derived from KSpreadWorker.
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*/
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Leader(KoFilterChain *filterChain, KSpreadBaseWorker *newWorker);
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/**
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* Default destructor.
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* It does nothing.
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*/
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virtual ~Leader();
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private:
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KSpreadBaseWorker *m_worker;
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KoFilterChain *m_filterChain;
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int m_maxCellColumn;
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int m_maxCellRow;
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void updateMaxCells(KSpreadSheet *spreadSheet);
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protected:
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KSpreadBaseWorker *getWorker() const;
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KoFilter::ConversiontqStatus doSpreadCell(Cell *spreadCell, int column, int row);
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KoFilter::ConversiontqStatus doSpreadSheet(Sheet *spreadSheet);
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KoFilter::ConversiontqStatus doSpreadBook(Doc *document);
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KoFilter::ConversiontqStatus doInfo(KoDocumentInfo *info);
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public:
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/**
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* Set your own implementation of the Worker.
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*
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* @param implementation of a class derived from KSpreadWorker.
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*/
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void setWorker(KSpreadBaseWorker *newWorker);
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/**
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* Start the conversion process.
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* The callbacks of your Worker will be called at this time.
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*
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* @return status of the conversion.
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*/
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KoFilter::ConversiontqStatus convert();
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};
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} // namespace KSpread
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#endif /* KSPREAD_LEADER_H */
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