/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef _XMLGRHLP_HXX
#define _XMLGRHLP_HXX

#include <bf_svtools/bf_solar.h>

#include <cppuhelper/compbase2.hxx>

#include <bf_so3/svstor.hxx>

#include <bf_goodies/graphicobject.hxx>
#include <vector>
#include <set>
#include <utility>

#include <com/sun/star/document/XGraphicObjectResolver.hpp>
#include <com/sun/star/document/XBinaryStreamResolver.hpp>
class SotStorage;
namespace binfilter {

// ----------------------
// - SvXMLGraphicHelper -
// ----------------------

enum SvXMLGraphicHelperMode
{
    GRAPHICHELPER_MODE_READ = 0,
    GRAPHICHELPER_MODE_WRITE = 1
};

// ----------------------
// - SvXMLGraphicHelper -
// ----------------------


class SvXMLGraphicHelper : public ::cppu::WeakComponentImplHelper2< ::com::sun::star::document::XGraphicObjectResolver,
                                                                    ::com::sun::star::document::XBinaryStreamResolver >
{
private:

    typedef ::std::pair< ::rtl::OUString, ::rtl::OUString >                                             URLPair;
    typedef ::std::vector< URLPair >                                                                    URLPairVector;
    typedef ::std::vector< BfGraphicObject >                                                                GraphicObjectVector;
    typedef ::std::set< ::rtl::OUString >                                                               URLSet;
    typedef ::std::vector< ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > >    GraphicOutputStreamVector;

    ::osl::Mutex                maMutex;
    SotStorage*                 mpRootStorage;
    SotStorageRef               mxGraphicStorage;
    ::rtl::OUString             maCurStorageName;
    URLPairVector               maGrfURLs;
    GraphicObjectVector         maGrfObjs;
    GraphicOutputStreamVector   maGrfStms;
    URLSet                      maURLSet;
    SvXMLGraphicHelperMode      meCreateMode;
    sal_Bool                    mbDirect;

    sal_Bool                    ImplGetStreamNames( const ::rtl::OUString& rURLStr,
                                                    ::rtl::OUString& rPictureStorageName,
                                                    ::rtl::OUString& rPictureStreamName );
    SotStorageRef               ImplGetGraphicStorage( const ::rtl::OUString& rPictureStorageName );
    SotStorageStreamRef         ImplGetGraphicStream( const ::rtl::OUString& rPictureStorageName,
                                                      const ::rtl::OUString& rPictureStreamName,
                                                      BOOL bTruncate );
    String                      ImplGetGraphicMimeType( const String& rFileName ) const;
    Graphic                     ImplReadGraphic( const ::rtl::OUString& rPictureStorageName,
                                                 const ::rtl::OUString& rPictureStreamName );
    sal_Bool                    ImplWriteGraphic( const ::rtl::OUString& rPictureStorageName,
                                                  const ::rtl::OUString& rPictureStreamName,
                                                  const ::rtl::OUString& rGraphicId );
    void                        ImplInsertGraphicURL( const ::rtl::OUString& rURLStr, sal_uInt32 nInsertPos );

protected:
                                SvXMLGraphicHelper();
                                ~SvXMLGraphicHelper();
    void                        Init( SotStorage* pXMLStorage,
                                      SvXMLGraphicHelperMode eCreateMode,
                                      BOOL bDirect );

    virtual void SAL_CALL       disposing();

public:
                                SvXMLGraphicHelper( SvXMLGraphicHelperMode eCreateMode );

    static SvXMLGraphicHelper*  Create( SotStorage& rXMLStorage,
                                        SvXMLGraphicHelperMode eCreateMode,
                                        BOOL bDirect = TRUE );
    static SvXMLGraphicHelper*  Create( SvXMLGraphicHelperMode eCreateMode );

    static void                 Destroy( SvXMLGraphicHelper* pSvXMLGraphicHelper );

    void                        Flush();

public:

    // XGraphicObjectResolver
    virtual ::rtl::OUString SAL_CALL resolveGraphicObjectURL( const ::rtl::OUString& aURL ) throw(::com::sun::star::uno::RuntimeException);

    // XBinaryStreamResolver
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL getInputStream( const ::rtl::OUString& rURL ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > SAL_CALL createOutputStream(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL resolveOutputStream( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >& rxBinaryStream ) throw (::com::sun::star::uno::RuntimeException);
};

}//end of namespace binfilter
#endif

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