/* -*- 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 INCLUDED_SC_INC_TOKENARRAY_HXX
#define INCLUDED_SC_INC_TOKENARRAY_HXX

#include <formula/token.hxx>
#include "scdllapi.h"
#include "types.hxx"
#include "calcmacros.hxx"
#include "address.hxx"
#include "global.hxx"
#include <formula/tokenarray.hxx>

namespace sc {

struct RefUpdateContext;
struct RefUpdateInsertTabContext;
struct RefUpdateDeleteTabContext;
struct RefUpdateMoveTabContext;
struct RefUpdateResult;
struct TokenStringContext;

}

struct ScRawToken;
struct ScSingleRefData;
struct ScComplexRefData;

class SC_DLLPUBLIC ScTokenArray : public formula::FormulaTokenArray
{
    friend class ScCompiler;

    bool ImplGetReference( ScRange& rRange, const ScAddress& rPos, bool bValidOnly ) const;

    size_t mnHashValue;
    ScFormulaVectorState meVectorState;

public:
    ScTokenArray();
    /// Assignment with references to FormulaToken entries (not copied!)
    ScTokenArray( const ScTokenArray& );
    virtual ~ScTokenArray();
    ScTokenArray* Clone() const;    /// True copy!

    void GenHash();
    size_t GetHash() const { return mnHashValue;}

    ScFormulaVectorState GetVectorState() const { return meVectorState;}

    /**
     * If the array contains at least one relative row reference or named
     * expression, it's variant. Otherwise invariant.
     */
    bool IsInvariant() const;

    /// Exactly and only one range (valid or deleted)
    bool IsReference( ScRange& rRange, const ScAddress& rPos ) const;
    /// Exactly and only one valid range (no #REF!s)
    bool IsValidReference( ScRange& rRange, const ScAddress& rPos ) const;

                            /** Determines the extent of direct adjacent
                                references. Only use with real functions, e.g.
                                GetOuterFuncOpCode() == ocSum ! */
    bool                    GetAdjacentExtendOfOuterFuncRefs( SCCOLROW& nExtend,
                                const ScAddress& rPos, ScDirection );

    formula::FormulaToken* AddRawToken( const ScRawToken& );
    virtual bool AddFormulaToken(
        const css::sheet::FormulaToken& rToken,
        svl::SharedStringPool& rSPool,
        formula::ExternalReferenceHelper* _pRef) SAL_OVERRIDE;
    virtual void CheckToken( const formula::FormulaToken& r ) SAL_OVERRIDE;
    virtual formula::FormulaToken* AddOpCode( OpCode eCode ) SAL_OVERRIDE;
    /** ScSingleRefToken with ocPush. */
    formula::FormulaToken* AddSingleReference( const ScSingleRefData& rRef );
    /** ScSingleRefOpToken with ocMatRef. */
    formula::FormulaToken* AddMatrixSingleReference( const ScSingleRefData& rRef );
    formula::FormulaToken* AddDoubleReference( const ScComplexRefData& rRef );
    formula::FormulaToken* AddRangeName( sal_uInt16 n, bool bGlobal );
    formula::FormulaToken* AddDBRange( sal_uInt16 n );
    formula::FormulaToken* AddExternalName( sal_uInt16 nFileId, const OUString& rName );
    formula::FormulaToken* AddExternalSingleReference( sal_uInt16 nFileId, const OUString& rTabName, const ScSingleRefData& rRef );
    formula::FormulaToken* AddExternalDoubleReference( sal_uInt16 nFileId, const OUString& rTabName, const ScComplexRefData& rRef );
    formula::FormulaToken* AddMatrix( const ScMatrixRef& p );
    /** ScSingleRefOpToken with ocColRowName. */
    formula::FormulaToken* AddColRowName( const ScSingleRefData& rRef );
    virtual formula::FormulaToken* MergeArray( ) SAL_OVERRIDE;

    /** Merge very last SingleRef+ocRange+SingleRef combination into DoubleRef
        and adjust pCode array, or do nothing if conditions not met.
        Unconditionally returns last token from the resulting pCode array, or
        NULL if there is no pCode (which actually would be caller's fault). */
    formula::FormulaToken* MergeRangeReference( const ScAddress & rPos );

    /// Assign XML string placeholder to the array
    void AssignXMLString( const OUString &rText, const OUString &rFormulaNmsp );

    /// Assignment with references to FormulaToken entries (not copied!)
    ScTokenArray& operator=( const ScTokenArray& );

    /// Make 3D references point to old referenced position even if relative
    void            ReadjustRelative3DReferences(
                                const ScAddress& rOldPos,
                                const ScAddress& rNewPos );

    /**
     * Make all absolute references external references pointing to the old document
     *
     * @param pOldDoc old document
     * @param pNewDoc new document
     * @param rPos position of the cell to determine if the reference is in the copied area
     * @param bRangeName set for range names, range names have special handling for absolute sheet ref + relative col/row ref
     */
    void ReadjustAbsolute3DReferences( const ScDocument* pOldDoc, const ScDocument* pNewDoc, const ScAddress& rPos, bool bRangeName = false );

    /**
     * Make all absolute references pointing to the copied range if the range is copied too
     * @param bCheckCopyArea should references pointing into the copy area be adjusted independently from being absolute, should be true only for copy&paste between documents
     */
    void AdjustAbsoluteRefs( const ScDocument* pOldDoc, const ScAddress& rOldPos, const ScAddress& rNewPos, bool bRangeName = false, bool bCheckCopyArea = false );

    /**
     * Adjust all references in response to shifting of cells during cell
     * insertion and deletion.
     *
     * @param rCxt context that stores details of shifted region.
     * @param rOldPos old cell position prior to shifting.
     */
    sc::RefUpdateResult AdjustReferenceOnShift( const sc::RefUpdateContext& rCxt, const ScAddress& rOldPos );

    sc::RefUpdateResult AdjustReferenceOnMove(
        const sc::RefUpdateContext& rCxt, const ScAddress& rOldPos, const ScAddress& rNewPos );

    /**
     * Move reference positions that are within specified moved range.
     *
     * @param rPos position of this formula cell
     */
    sc::RefUpdateResult MoveReference( const ScAddress& rPos, const sc::RefUpdateContext& rCxt );

    /**
     * Move reference positions in response to column reordering.  A range
     * reference gets moved only when the whole range fits in a single column.
     *
     * @param rPos position of this formula cell
     * @param nTab sheet where columns are reordered.
     * @param nRow1 top row of reordered range.
     * @param nRow2 bottom row of reordered range.
     * @param rColMap old-to-new column mapping.
     */
    void MoveReferenceColReorder(
        const ScAddress& rPos, SCTAB nTab, SCROW nRow1, SCROW nRow2,
        const sc::ColRowReorderMapType& rColMap );

    void MoveReferenceRowReorder(
        const ScAddress& rPos, SCTAB nTab, SCCOL nCol1, SCCOL nCol2,
        const sc::ColRowReorderMapType& rRowMap );

    /**
     * Adjust all references in named expression. In named expression, we only
     * update absolute positions, and leave relative positions intact.
     *
     * @param rCxt context that stores details of shifted region
     *
     * @return update result.
     */
    sc::RefUpdateResult AdjustReferenceInName( const sc::RefUpdateContext& rCxt, const ScAddress& rPos );

    sc::RefUpdateResult AdjustReferenceInMovedName( const sc::RefUpdateContext& rCxt, const ScAddress& rPos );

    /**
     * Adjust all references on sheet deletion.
     *
     * @param nDelPos position of sheet being deleted.
     * @param nSheets number of sheets to delete.
     * @param rOldPos position of formula cell prior to the deletion.
     *
     * @return true if at least one reference has changed its sheet reference.
     */
    sc::RefUpdateResult AdjustReferenceOnDeletedTab( sc::RefUpdateDeleteTabContext& rCxt, const ScAddress& rOldPos );

    sc::RefUpdateResult AdjustReferenceOnInsertedTab( sc::RefUpdateInsertTabContext& rCxt, const ScAddress& rOldPos );

    sc::RefUpdateResult AdjustReferenceOnMovedTab( sc::RefUpdateMoveTabContext& rCxt, const ScAddress& rOldPos );

    /**
     * Adjust all internal references on base position change.
     */
    void AdjustReferenceOnMovedOrigin( const ScAddress& rOldPos, const ScAddress& rNewPos );

    /**
     * Clear sheet deleted flag from internal reference tokens if the sheet
     * index falls within specified range.  Note that when a reference is on a
     * sheet that's been deleted, its referenced sheet index retains the
     * original index of the deleted sheet.
     *
     * @param rPos position of formula cell
     * @param nStartTab index of first sheet, inclusive.
     * @param nEndTab index of last sheet, inclusive.
     */
    void ClearTabDeleted( const ScAddress& rPos, SCTAB nStartTab, SCTAB nEndTab );

    void CheckRelativeReferenceBounds(
        const sc::RefUpdateContext& rCxt, const ScAddress& rPos, SCROW nGroupLen, std::vector<SCROW>& rBounds ) const;

    void CheckRelativeReferenceBounds(
        const ScAddress& rPos, SCROW nGroupLen, const ScRange& rRange, std::vector<SCROW>& rBounds ) const;

    /**
     * Create a string representation of formula token array without modifying
     * the internal state of the token array.
     */
    OUString CreateString( sc::TokenStringContext& rCxt, const ScAddress& rPos ) const;

    void WrapReference( const ScAddress& rPos, SCCOL nMaxCol, SCROW nMaxRow );

#if DEBUG_FORMULA_COMPILER
    void Dump() const;
#endif
};

#endif // INCLUDED_SC_INC_TOKENARRAY_HXX

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