okular/interfaces/saveinterface.h
2015-04-16 00:54:32 +01:00

86 lines
2.6 KiB
C++

/***************************************************************************
* Copyright (C) 2008 by Pino Toscano <pino@kde.org> *
* *
* 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 _OKULAR_SAVEINTERFACE_H_
#define _OKULAR_SAVEINTERFACE_H_
#include "../core/okularcore_export.h"
#include <QtCore/QObject>
namespace Okular {
class AnnotationProxy;
/**
* @short Abstract interface for saving
*
* This interface defines a way to save (or help saving) the document opened
* by the Generator.
*
* How to use it in a custom Generator:
* @code
class MyGenerator : public Okular::Generator, public Okular::SaveInterface
{
Q_OBJECT
Q_INTERFACES( Okular::SaveInterface )
...
};
* @endcode
* and - of course - implementing its methods.
*/
class OKULARCORE_EXPORT SaveInterface
{
public:
/**
* The possible options for the saving.
*/
enum SaveOption
{
NoOption = 0,
SaveChanges = 1 ///< The possibility to save with the current changes to the document.
};
Q_DECLARE_FLAGS( SaveOptions, SaveOption )
/**
* Destroys the save interface.
*/
virtual ~SaveInterface() {}
/**
* Query for the supported saving options.
*
* @note NoOption is never queried
*/
virtual bool supportsOption( SaveOption option ) const = 0;
/**
* Save to the specified @p fileName with the specified @p options.
*/
virtual bool save( const QString &fileName, SaveOptions options, QString *errorText ) = 0;
/**
* Returns the annotation proxy. Generators can return NULL if native
* annotations are not supported.
*
* @note Returning NULL is equivalent to returning an AnnotationProxy
* that doesn't support any capability.
* @since 0.15 (KDE 4.9)
*/
virtual AnnotationProxy* annotationProxy() const = 0;
};
}
Q_DECLARE_INTERFACE( Okular::SaveInterface, "org.kde.okular.SaveInterface/0.3" )
Q_DECLARE_OPERATORS_FOR_FLAGS( Okular::SaveInterface::SaveOptions )
#endif