/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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#ifndef FORMS_SOURCE_RICHTEXT_RICHTEXTENGINE_HXX
#define FORMS_SOURCE_RICHTEXT_RICHTEXTENGINE_HXX

#include <editeng/editeng.hxx>
#include <tools/link.hxx>

#include <vector>

class SfxItemPool;
class EditStatus;
//........................................................................
namespace frm
{
//........................................................................

	//====================================================================
	//= IEngineStatusListener
	//====================================================================
    class IEngineStatusListener
    {
    public:
        virtual void EditEngineStatusChanged( const EditStatus& _rStatus ) = 0;
    };

	//====================================================================
	//= RichTextEngine
	//====================================================================
    class RichTextEngine : public EditEngine
	{
    private:
        SfxItemPool*                            m_pEnginePool;
        ::std::vector< IEngineStatusListener* > m_aStatusListeners;

    public:
        static  RichTextEngine* Create();
                RichTextEngine* Clone();

                ~RichTextEngine( );

        // for multiplexing the StatusChanged events of the edit engine
        void registerEngineStatusListener( IEngineStatusListener* _pListener );
        void revokeEngineStatusListener( IEngineStatusListener* _pListener );

        inline SfxItemPool* getPool() { return m_pEnginePool; }

    protected:
        /** constructs a new RichTextEngine. The instances takes the ownership of the given SfxItemPool
        */
        RichTextEngine( SfxItemPool* _pPool );

    private:
        RichTextEngine( );                                  // never implemented
        RichTextEngine( const RichTextEngine& );            // never implemented
        RichTextEngine& operator=( const RichTextEngine& ); // never implemented

    private:
        DECL_LINK( EditEngineStatusChanged, EditStatus* );
	};

//........................................................................
} // namespace frm
//........................................................................

#endif // FORMS_SOURCE_RICHTEXT_RICHTEXTENGINE_HXX