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/*************************************************************************
 *
 * 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 SC_XEFORMULA_HXX
#define SC_XEFORMULA_HXX

#include "xlformula.hxx"
#include "xeroot.hxx"

// External reference log =====================================================

/** Log entry for external references in a formula, used i.e. in change tracking. */
struct XclExpRefLogEntry
{
    const XclExpString* mpUrl;              /// URL of the document containing the first sheet.
    const XclExpString* mpFirstTab;         /// Name of the first sheet.
    const XclExpString* mpLastTab;          /// Name of the last sheet.
    sal_uInt16          mnFirstXclTab;      /// Calc index of the first sheet.
    sal_uInt16          mnLastXclTab;       /// Calc index of the last sheet.

    explicit            XclExpRefLogEntry();
};

/** Vector containing a log for all external references in a formula, used i.e. in change tracking. */
typedef ::std::vector< XclExpRefLogEntry > XclExpRefLog;

// Formula compiler ===========================================================

class ScRangeList;
class XclExpFmlaCompImpl;

/** The formula compiler to create Excel token arrays from Calc token arrays. */
class XclExpFormulaCompiler : protected XclExpRoot
{
public:
    explicit            XclExpFormulaCompiler( const XclExpRoot& rRoot );
    virtual             ~XclExpFormulaCompiler();

    /** Creates and returns the token array of a formula. */
    XclTokenArrayRef    CreateFormula(
                            XclFormulaType eType, const ScTokenArray& rScTokArr,
                            const ScAddress* pScBasePos = 0, XclExpRefLog* pRefLog = 0 );

    /** Creates and returns a token array containing a single cell address. */
    XclTokenArrayRef    CreateFormula( XclFormulaType eType, const ScAddress& rScPos );

    /** Creates and returns a token array containing a single cell range address. */
    XclTokenArrayRef    CreateFormula( XclFormulaType eType, const ScRange& rScRange );

    /** Creates and returns the token array for a cell range list. */
    XclTokenArrayRef    CreateFormula( XclFormulaType eType, const ScRangeList& rScRanges );

    /** Creates a single error token containing the passed error code. */
    XclTokenArrayRef    CreateErrorFormula( sal_uInt8 nErrCode );

    /** Creates a single token for a special cell reference.
        @descr  This is used for array formulas and shared formulas (token tExp),
            and multiple operation tables (token tTbl). */
    XclTokenArrayRef    CreateSpecialRefFormula( sal_uInt8 nTokenId, const XclAddress& rXclPos );

    /** Creates a single tNameXR token for a reference to an external name.
        @descr  This is used i.e. for linked macros in push buttons. */
    XclTokenArrayRef    CreateNameXFormula( sal_uInt16 nExtSheet, sal_uInt16 nExtName );

private:
    typedef ScfRef< XclExpFmlaCompImpl > XclExpFmlaCompImplRef;
    XclExpFmlaCompImplRef mxImpl;
};

// ============================================================================

#endif