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/* -*- 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/.
 */

#ifndef INCLUDED_SC_INC_CALCCONFIG_HXX
#define INCLUDED_SC_INC_CALCCONFIG_HXX

#include "scdllapi.h"

#include <memory>
#include <string_view>

#include <o3tl/sorted_vector.hxx>
#include <formula/grammar.hxx>
#include <formula/opcode.hxx>
#include <rtl/ustring.hxx>

// have to match the registry values
enum ScRecalcOptions
{
    RECALC_ALWAYS = 0,
    RECALC_NEVER,
    RECALC_ASK,
};

// Env.var. SC_FORCE_CALCULATION can be used to force all calculation
// to be done using OpenCL or group threading (even for single cells).
enum ForceCalculationType
{
    ForceCalculationNone, // do not force anything
    ForceCalculationCore, // "core", use only non-threaded normal code
    ForceCalculationOpenCL, // "opencl", force OpenCL
    ForceCalculationThreads // "threads", force threaded code
};

/**
 * Configuration options for formula interpreter.
 */
struct SC_DLLPUBLIC ScCalcConfig
{
    // from most stringent to most relaxed
    enum class StringConversion
    {
        ILLEGAL, ///<  =1+"1" or =1+"x" give #VALUE!
        ZERO, ///<  =1+"1" or =1+"x" give 1
        UNAMBIGUOUS, ///<  =1+"1" gives 2, but =1+"1.000" or =1+"x" give #VALUE!
        LOCALE ///<  =1+"1.000" may be 2 or 1001 ... =1+"x" gives #VALUE!
    };
    formula::FormulaGrammar::AddressConvention meStringRefAddressSyntax;
    StringConversion meStringConversion;
    bool mbEmptyStringAsZero : 1;
    bool mbHasStringRefSyntax : 1;

    static bool isOpenCLEnabled();
    static bool isThreadingEnabled();
    static ForceCalculationType getForceCalculationType();

    bool mbOpenCLSubsetOnly : 1;
    bool mbOpenCLAutoSelect : 1;
    OUString maOpenCLDevice;
    sal_Int32 mnOpenCLMinimumFormulaGroupSize;

    typedef std::shared_ptr<o3tl::sorted_vector<OpCode>> OpCodeSet;

    OpCodeSet mpOpenCLSubsetOpCodes;

    ScCalcConfig();

    void setOpenCLConfigToDefault();

    void reset();
    void MergeDocumentSpecific(const ScCalcConfig& r);
    void SetStringRefSyntax(formula::FormulaGrammar::AddressConvention eConv);

    bool operator==(const ScCalcConfig& r) const;
    bool operator!=(const ScCalcConfig& r) const;
};

OUString ScOpCodeSetToSymbolicString(const ScCalcConfig::OpCodeSet& rOpCodes);
ScCalcConfig::OpCodeSet ScStringToOpCodeSet(std::u16string_view rOpCodes);

#endif

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