/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef _SV_GFXLINK_HXX
#define _SV_GFXLINK_HXX

#include <vcl/dllapi.h>
#include <vcl/sv.h>
#include <vcl/mapmod.hxx>
#include <tools/stream.hxx>

// -------------
// - ImpBuffer -
// -------------

struct ImpBuffer
{
    sal_uLong		mnRefCount;
    sal_uInt8*		mpBuffer;

                ImpBuffer( sal_uLong nSize )
                {
                    mnRefCount = 1UL;
                    mpBuffer = nSize ? new sal_uInt8[ nSize ] : NULL;
                }

                ImpBuffer( sal_uInt8* pBuf ) { mnRefCount = 1UL; mpBuffer = pBuf; }

                ~ImpBuffer() { delete[] mpBuffer; }
};

// -----------
// - ImpSwap -
// -----------

struct ImpSwap
{
    rtl::OUString	maURL;
    sal_uLong			mnDataSize;
    sal_uLong			mnRefCount;

                    ImpSwap( sal_uInt8* pData, sal_uLong nDataSize );
                    ~ImpSwap();

    sal_uInt8*			GetData() const;

    sal_Bool			IsSwapped() const { return maURL.getLength() > 0; }

    void			WriteTo( SvStream& rOStm ) const;
};

// --------------
// - ImpGfxLink -
// --------------

struct ImpGfxLink
{
    MapMode         maPrefMapMode;
    Size            maPrefSize;
    bool			mbPrefMapModeValid;
    bool			mbPrefSizeValid;

    ImpGfxLink() : 
        maPrefMapMode(),
        maPrefSize(),
        mbPrefMapModeValid( false ), 
        mbPrefSizeValid( false ) 
    {}
};

//#endif // __PRIVATE

// ---------------
// - GfxLinkType -
// ---------------

enum GfxLinkType
{
    GFX_LINK_TYPE_NONE			= 0,
    GFX_LINK_TYPE_EPS_BUFFER	= 1,
    GFX_LINK_TYPE_NATIVE_GIF	= 2,	// Don't forget to update the following defines
    GFX_LINK_TYPE_NATIVE_JPG	= 3,	// Don't forget to update the following defines
    GFX_LINK_TYPE_NATIVE_PNG	= 4,	// Don't forget to update the following defines
    GFX_LINK_TYPE_NATIVE_TIF	= 5,	// Don't forget to update the following defines
    GFX_LINK_TYPE_NATIVE_WMF	= 6,	// Don't forget to update the following defines
    GFX_LINK_TYPE_NATIVE_MET	= 7,	// Don't forget to update the following defines
    GFX_LINK_TYPE_NATIVE_PCT	= 8,	// Don't forget to update the following defines
    GFX_LINK_TYPE_USER			= 0xffff
};

#define GFX_LINK_FIRST_NATIVE_ID	GFX_LINK_TYPE_NATIVE_GIF
#define GFX_LINK_LAST_NATIVE_ID		GFX_LINK_TYPE_NATIVE_PCT

// -----------
// - GfxLink -
// -----------

struct ImpBuffer;
struct ImpSwap;
struct ImpGfxLink;
class Graphic;

class VCL_DLLPUBLIC GfxLink
{
private:

    GfxLinkType			meType;
    ImpBuffer*			mpBuf;
    ImpSwap*			mpSwap;
    sal_uInt32			mnBufSize;
    sal_uInt32			mnUserId;
    ImpGfxLink*         mpImpData;
    sal_uLong				mnExtra2;

    SAL_DLLPRIVATE void	ImplCopy( const GfxLink& rGfxLink );

public:					
                        GfxLink();
                        GfxLink( const GfxLink& );
                        GfxLink( const String& rPath, GfxLinkType nType );
                        GfxLink( sal_uInt8* pBuf, sal_uInt32 nBufSize, GfxLinkType nType, sal_Bool bOwns );
                        ~GfxLink();

    GfxLink&			operator=( const GfxLink& );
    sal_Bool			IsEqual( const GfxLink& ) const;

    GfxLinkType			GetType() const;

    void				SetUserId( sal_uInt32 nUserId ) { mnUserId = nUserId; }
    sal_uInt32			GetUserId() const { return mnUserId; }

    sal_uInt32			GetDataSize() const;	
    void				SetData( sal_uInt8* pBuf, sal_uInt32 nSize, GfxLinkType nType, sal_Bool bOwns );
    const sal_uInt8*			GetData() const;

    const Size&			GetPrefSize() const;
    void				SetPrefSize( const Size& rPrefSize );
    bool 				IsPrefSizeValid();

    const MapMode&		GetPrefMapMode() const;
    void				SetPrefMapMode( const MapMode& rPrefMapMode );
    bool 				IsPrefMapModeValid();

    sal_Bool				IsNative() const;
    sal_Bool				IsUser() const { return( GFX_LINK_TYPE_USER == meType ); }

    sal_Bool				LoadNative( Graphic& rGraphic );

    sal_Bool				ExportNative( SvStream& rOStream ) const;

    void				SwapOut();
    void				SwapIn();
    sal_Bool				IsSwappedOut() const { return( mpSwap != NULL ); }

public:

    friend VCL_DLLPUBLIC SvStream&	operator<<( SvStream& rOStream, const GfxLink& rGfxLink );
    friend VCL_DLLPUBLIC SvStream&	operator>>( SvStream& rIStream, GfxLink& rGfxLink );
};

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
