ftools.hxx

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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/.
 *
 * 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 .
 */
 
#pragma once
 
#include <algorithm>
#include <vector>
#include <limits>
#include <string_view>
 
#include <tools/ref.hxx>
#include <filter.hxx>
 
// Common macros ==============================================================
 
// items and item sets --------------------------------------------------------
 
#define GETITEM( itemset, itemtype, which ) \
    static_cast< const itemtype & >( (itemset).Get( which ) )
 
#define GETITEMBOOL( itemset, which ) \
    (static_cast<const SfxBoolItem &>( (itemset).Get( which )).GetValue() )
 
// Global static helpers ======================================================
 
// Value range limit helpers --------------------------------------------------
 
template< typename ReturnType, typename Type >
inline ReturnType llimit_cast( Type nValue, ReturnType nMin )
{ return static_cast< ReturnType >( ::std::max< Type >( nValue, nMin ) ); }
 
template< typename ReturnType, typename Type >
inline ReturnType ulimit_cast( Type nValue, ReturnType nMax )
{ return static_cast< ReturnType >( ::std::min< Type >( nValue, nMax ) ); }
 
template< typename ReturnType, typename Type >
inline ReturnType ulimit_cast( Type nValue )
{ return ulimit_cast( nValue, ::std::numeric_limits< ReturnType >::max() ); }
 
template< typename ReturnType, typename Type >
inline ReturnType limit_cast( Type nValue, ReturnType nMin, ReturnType nMax )
{ return static_cast< ReturnType >( ::std::clamp< Type >( nValue, nMin, nMax ) ); }
 
template< typename ReturnType, typename Type >
inline ReturnType limit_cast( Type nValue )
{ return limit_cast( nValue, ::std::numeric_limits< ReturnType >::min(), ::std::numeric_limits< ReturnType >::max() ); }
 
// Read from bitfields --------------------------------------------------------
 
template< typename Type >
inline bool get_flag( Type nBitField, Type nMask )
{ return (nBitField & nMask) != 0; }
 
template< typename ReturnType, typename Type >
inline ReturnType get_flagvalue( Type nBitField, Type nMask, ReturnType nSet, ReturnType nUnset )
{ return ::get_flag( nBitField, nMask ) ? nSet : nUnset; }
 
template< typename ReturnType, typename Type >
inline ReturnType extract_value( Type nBitField, sal_uInt8 nStartBit, sal_uInt8 nBitCount )
{ return static_cast< ReturnType >( ((1UL << nBitCount) - 1) & (nBitField >> nStartBit) ); }
 
// Write to bitfields ---------------------------------------------------------
 
template< typename Type >
inline void set_flag( Type& rnBitField, Type nMask, bool bSet = true )
{ if( bSet ) rnBitField |= nMask; else rnBitField &= ~nMask; }
 
template< typename Type, typename InsertType >
void insert_value( Type& rnBitField, InsertType nValue, sal_uInt8 nStartBit, sal_uInt8 nBitCount )
{
    unsigned int nMask = (1U << nBitCount) - 1;
    Type nNewValue = static_cast< Type >( nValue & nMask );
    rnBitField = (rnBitField & ~(nMask << nStartBit)) | (nNewValue << nStartBit);
}
 
class Color;
class SfxPoolItem;
class SfxItemSet;
class ScStyleSheet;
class ScStyleSheetPool;
class SvStream;
class SotStorage;
class SotStorageStream;
 
class ScfTools
{
public:
    ScfTools() = delete;
    ScfTools(const ScfTools&) = delete;
    const ScfTools& operator=(const ScfTools&) = delete;
 
// *** common methods *** -----------------------------------------------------
 
    static void ReadLongDouble(SvStream& rStrm, double& fResult);
    static rtl_TextEncoding GetSystemTextEncoding();
    static OUString       GetHexStr( sal_uInt16 nValue );
 
    static sal_uInt8    GetMixedColorComp( sal_uInt8 nFore, sal_uInt8 nBack, sal_uInt8 nTrans );
    static Color        GetMixedColor( const Color& rFore, const Color& rBack, sal_uInt8 nTrans );
 
// *** conversion of names *** ------------------------------------------------
 
    static OUString  ConvertToScDefinedName( const OUString& rName );
 
// *** streams and storages *** -----------------------------------------------
 
    static tools::SvRef<SotStorage> OpenStorageRead( tools::SvRef<SotStorage> const & xStrg, const OUString& rStrgName );
    static tools::SvRef<SotStorage> OpenStorageWrite( tools::SvRef<SotStorage> const & xStrg, const OUString& rStrgName );
 
    static tools::SvRef<SotStorageStream> OpenStorageStreamRead( tools::SvRef<SotStorage> const & xStrg, const OUString& rStrmName );
    static tools::SvRef<SotStorageStream> OpenStorageStreamWrite( tools::SvRef<SotStorage> const & xStrg, const OUString& rStrmName );
 
// *** item handling *** ------------------------------------------------------
 
    static bool         CheckItem( const SfxItemSet& rItemSet, sal_uInt16 nWhichId, bool bDeep );
    static bool         CheckItems( const SfxItemSet& rItemSet, const sal_uInt16* pnWhichIds, bool bDeep );
 
    static void         PutItem(
                            SfxItemSet& rItemSet, const SfxPoolItem& rItem,
                            sal_uInt16 nWhichId, bool bSkipPoolDef );
 
    static void         PutItem( SfxItemSet& rItemSet, const SfxPoolItem& rItem, bool bSkipPoolDef );
 
// *** style sheet handling *** -----------------------------------------------
 
    static ScStyleSheet& MakeCellStyleSheet(
                            ScStyleSheetPool& rPool,
                            const OUString& rStyleName, bool bForceName );
    static ScStyleSheet& MakePageStyleSheet(
                            ScStyleSheetPool& rPool,
                            const OUString& rStyleName, bool bForceName );
 
// *** byte string import operations *** --------------------------------------
 
    static OString read_zeroTerminated_uInt8s_ToOString(SvStream& rStrm, sal_Int32& rnBytesLeft);
    static OUString read_zeroTerminated_uInt8s_ToOUString(SvStream& rStrm, sal_Int32& rnBytesLeft, rtl_TextEncoding eTextEnc)
    {
        return OStringToOUString(read_zeroTerminated_uInt8s_ToOString(rStrm, rnBytesLeft), eTextEnc);
    }
 
    static void         AppendCString( SvStream& rStrm, OUString& rString, rtl_TextEncoding eTextEnc );
 
// *** HTML table names <-> named range names *** -----------------------------
 
    static const OUString& GetHTMLDocName();
    static const OUString& GetHTMLTablesName();
    static OUString       GetNameFromHTMLIndex( sal_uInt32 nIndex );
    static OUString       GetNameFromHTMLName( std::u16string_view rTabName );
 
    static bool         IsHTMLDocName( std::u16string_view rSource );
    static bool         IsHTMLTablesName( std::u16string_view rSource );
    static bool         GetHTMLNameFromName( const OUString& rSource, OUString& rName );
 
private:
    static const OUString& GetHTMLIndexPrefix();
    static const OUString& GetHTMLNamePrefix();
};
 
// Containers =================================================================
 
typedef ::std::vector< sal_uInt8 >                  ScfUInt8Vec;
typedef ::std::vector< sal_Int16 >                  ScfInt16Vec;
typedef ::std::vector< sal_uInt16 >                 ScfUInt16Vec;
typedef ::std::vector< sal_Int32 >                  ScfInt32Vec;
typedef ::std::vector< sal_uInt32 >                 ScfUInt32Vec;
typedef ::std::vector< OUString >            ScfStringVec;
 
class ScFormatFilterPluginImpl : public ScFormatFilterPlugin
{
public:
    ScFormatFilterPluginImpl();
    virtual ~ScFormatFilterPluginImpl();
    // various import filters
    virtual ErrCode ScImportLotus123( SfxMedium&, ScDocument&, rtl_TextEncoding eSrc ) override;
    virtual ErrCode ScImportQuattroPro(SvStream* pStream, ScDocument& rDoc) override;
    virtual ErrCode ScImportExcel( SfxMedium&, ScDocument*, const EXCIMPFORMAT ) override;
        // eFormat == EIF_AUTO  -> matching filter is used automatically
        // eFormat == EIF_BIFF5 -> only Biff5 stream leads to success (even in an Excel97 doc)
        // eFormat == EIF_BIFF8 -> only Biff8 stream leads to success (only in Excel97 docs)
        // eFormat == EIF_BIFF_LE4 -> only non-storage files _could_ lead to success
    virtual ErrCode ScImportDif( SvStream&, ScDocument*, const ScAddress& rInsPos,
                 const rtl_TextEncoding eSrc ) override;
    virtual ErrCode ScImportRTF( SvStream&, const OUString& rBaseURL, ScDocument*, ScRange& rRange ) override;
    virtual ErrCode ScImportHTML( SvStream&, const OUString& rBaseURL, ScDocument*, ScRange& rRange,
                                   double nOutputFactor, bool bCalcWidthHeight,
                                   SvNumberFormatter* pFormatter, bool bConvertDate ) override;
 
    virtual std::unique_ptr<ScEEAbsImport> CreateRTFImport( ScDocument* pDoc, const ScRange& rRange ) override;
    virtual std::unique_ptr<ScEEAbsImport> CreateHTMLImport( ScDocument* pDocP, const OUString& rBaseURL, const ScRange& rRange ) override;
    virtual OUString       GetHTMLRangeNameList( ScDocument& rDoc, const OUString& rOrigName ) override;
 
    // various export filters
    virtual ErrCode ScExportExcel5( SfxMedium&, ScDocument*, ExportFormatExcel eFormat, rtl_TextEncoding eDest ) override;
    virtual void ScExportDif( SvStream&, ScDocument*, const ScAddress& rOutPos, const rtl_TextEncoding eDest ) override;
    virtual void ScExportDif( SvStream&, ScDocument*, const ScRange& rRange, const rtl_TextEncoding eDest ) override;
    virtual void ScExportHTML( SvStream&, const OUString& rBaseURL, ScDocument*, const ScRange& rRange, const rtl_TextEncoding eDest, bool bAll,
                  const OUString& rStreamPath, OUString& rNonConvertibleChars, const OUString& rFilterOptions ) override;
    virtual void ScExportRTF( SvStream&, ScDocument*, const ScRange& rRange, const rtl_TextEncoding eDest ) override;
 
    virtual ScOrcusFilters* GetOrcusFilters() override;
};
 
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