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a674f70d4a
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4637 a592a061-630c-0410-9148-cb99ea01b6c8
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
// -*- C++ -*-
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/**
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* \file GraphicsConverter.h
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* Copyright 2002 the LyX Team
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* Read the file COPYING
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*
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* \author Angus Leeming <leeming@lyx.org>
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*
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* The controller of a conversion process from file AA of format A to
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* file BB of format B.
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* Once finished, the signal finishdConversion is emitted to inform the
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* instigator where to find file BB.
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* If the conversion is unsuccessful, then finishedConversion will pass
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* an empty string.
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*/
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#ifndef GRAPHICSCONVERTER_H
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#define GRAPHICSCONVERTER_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "LString.h"
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#include <boost/signals/signal1.hpp>
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#include <boost/scoped_ptr.hpp>
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#include <boost/utility.hpp>
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namespace grfx {
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class Converter : boost::noncopyable {
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public:
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/// Can the conversion be performed?
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static bool isReachable(string const & from_format_name,
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string const & to_format_name);
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/** One Converter per conversion ensures that finishedConversion
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* is always connected to the expected slot.
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*/
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Converter(string const & from_file, string const & to_file_base,
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string const & from_format, string const & to_format);
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/// Define an empty d-tor out-of-line to keep boost::scoped_ptr happy.
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~Converter();
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/// We are explicit about when we begin the conversion process.
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void startConversion();
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/** At the end of the conversion process inform the outside world
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* by emitting a signal.
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*/
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typedef boost::signal1<void, bool> SignalType;
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///
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SignalType finishedConversion;
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/** If the convsion is succesful (finishedConversion returns \c true),
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* this returns the name of the resulting file.
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* If conversion fails, however, it returns an empty string.
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*/
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string const & convertedFile() const;
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private:
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/// Use the Pimpl idiom to hide the internals.
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class Impl;
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/// The pointer never changes although *pimpl_'s contents may.
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boost::scoped_ptr<Impl> const pimpl_;
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};
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} // namespace grfx
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#endif // GRAPHICSCONVERTER_H
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