lwptools.hxx

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/*************************************************************************
 * @file
 *  to provide basic utilities for word pro filter
 ************************************************************************/
 
#ifndef INCLUDED_LOTUSWORDPRO_INC_LWPTOOLS_HXX
#define INCLUDED_LOTUSWORDPRO_INC_LWPTOOLS_HXX
 
#include <config_lgpl.h>
 
#include "lwpobjstrm.hxx"
#include "localtime.hxx"
#include "xfilter/xfdatestyle.hxx"
#include "xfilter/xftimestyle.hxx"
#include <rtl/textenc.h>
#include <stdexcept>
#include <string_view>
 
// 01/19/2005
const sal_uInt32 UNITS_PER_INCH = 65536L * 72L;
const double CM_PER_INCH = 2.54;
//end
 
const double POINTS_PER_INCH = 72.27;
const double TWIPS_PER_POINT = 20.0;
const double TWIPS_PER_INCH = TWIPS_PER_POINT * POINTS_PER_INCH;
const double TWIPS_PER_CM = TWIPS_PER_INCH/CM_PER_INCH;
class LwpTools
{
 
public:
    static void QuickReadUnicode( LwpObjectStream* pObjStrm,
        OUString& str, sal_uInt16 strlen,  rtl_TextEncoding aEncoding );
    static bool IsUnicodePacked(LwpObjectStream* pObjStrm, sal_uInt16 len);
 
    inline static double ConvertFromUnits(sal_Int32 nUnits);
    inline static double ConvertToMetric(double fInch);
    inline static double ConvertFromUnitsToMetric(sal_Int32 nUnits);
 
    inline static bool IsOddNumber(sal_uInt16 nNumber);
    inline static bool IsEvenNumber(sal_uInt16 nNumber);
 
    static bool isFileUrl(std::string_view fileName);
    static OUString convertToFileUrl(const OString& fileName);
    static OUString    DateTimeToOUString(const LtTm& dt);
 
    static std::unique_ptr<XFDateStyle> GetSystemDateStyle(bool bLongFormat);
    static std::unique_ptr<XFTimeStyle> GetSystemTimeStyle();
};
 
inline double LwpTools::ConvertFromUnits(sal_Int32 nUnits)
{
    return static_cast<double>(nUnits)/UNITS_PER_INCH;
}
inline double LwpTools::ConvertToMetric(double fInch)
{
    return fInch*CM_PER_INCH;
}
inline double LwpTools::ConvertFromUnitsToMetric(sal_Int32 nUnits)
{
    double fInch = ConvertFromUnits(nUnits);
    return ConvertToMetric(fInch);
}
inline bool LwpTools::IsOddNumber(sal_uInt16 nNumber)
{
    return (nNumber%2) != 0;
}
inline bool LwpTools::IsEvenNumber(sal_uInt16 nNumber)
{
    return (nNumber%2) == 0;
}
 
class BadSeek : public std::runtime_error
{
public:
    BadSeek() : std::runtime_error("Lotus Word Pro Bad Seek") { }
};
 
class BadRead: public std::runtime_error
{
public:
    BadRead() : std::runtime_error("Lotus Word Pro Bad Read") { }
};
 
class BadDecompress : public std::runtime_error
{
public:
    BadDecompress() : std::runtime_error("Lotus Word Pro Bad Decompress") { }
};
 
#endif
 
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