path: root/binfilter/inc/bf_starmath/utility.hxx

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#ifndef UTILITY_HXX
#define UTILITY_HXX

#include <bf_svtools/bf_solar.h>
#include <bf_tools/string.hxx>
#include <bf_sfx2/minarray.hxx>
#include <vcl/font.hxx>
#include <vcl/fixed.hxx>
#include <vcl/combobox.hxx>
#include <vcl/lstbox.hxx>
#include <tools/fract.hxx>
namespace binfilter {

class String;

class SmRect;


#define C2S(cChar) String::CreateFromAscii(RTL_CONSTASCII_STRINGPARAM(cChar))

/////////////////////////////////////////////////////////////////

const String        ImportString( const ByteString& rByteString );

/////////////////////////////////////////////////////////////////

inline long SmPtsTo100th_mm(long nNumPts)
    // returns the length (in 100th of mm) that corresponds to the length
    // 'nNumPts' (in units points).
    // 72.27 [pt] = 1 [inch] = 2,54 [cm] = 2540 [100th of mm].
    // result is being rounded to the nearest integer.
{
    DBG_ASSERT(nNumPts >= 0, "Sm : Ooops...");
    // broken into multiple and fraction of 'nNumPts' to reduce chance
    // of overflow
    // (7227 / 2) is added in order to round to the nearest integer
    return 35 * nNumPts + (nNumPts * 1055L + (7227 / 2)) / 7227L;
}


inline long SmPtsTo100th_mm(const Fraction &rNumPts)
    // as above but with argument 'rNumPts' as 'Fraction'
{
    Fraction  aTmp (254000L, 7227L);
    return aTmp *= rNumPts;
}


inline Fraction Sm100th_mmToPts(long nNum100th_mm)
    // returns the length (in points) that corresponds to the length
    // 'nNum100th_mm' (in 100th of mm).
{
    DBG_ASSERT(nNum100th_mm >= 0, "Sm : Ooops...");
    Fraction  aTmp (7227L, 254000L);
    return aTmp *= Fraction(nNum100th_mm);
}


inline long SmRoundFraction(const Fraction &rFrac)
{
    DBG_ASSERT(rFrac > Fraction(), "Sm : Ooops...");
    return (rFrac.GetNumerator() + rFrac.GetDenominator() / 2) / rFrac.GetDenominator();
}


class SmViewShell;
SmViewShell * SmGetActiveView();


////////////////////////////////////////////////////////////

class SmFace;

SvStream& operator >> (SvStream& rStream, SmFace& rFont);

void ReadSM20Font(SvStream& rStream, Font& rFont);


////////////////////////////////////////////////////////////
//
// SmRectCache
//

class SmRectCache
{
    VirtualDevice *pVirDev;

    SmRectCache(const SmRectCache &);
    SmRectCache & operator = (const SmRectCache &);

public:
    struct Key
    {   XubString   aText,
                    aFontName;
        Size        aFontSize;
        FontWeight  eFontWeight;
        FontItalic  eFontItalic;

        Key(const XubString& /* rText */, const Font& /* rFont */) {}
    };

    SmRectCache();
    ~SmRectCache();

    const SmRect *  Search(const Key & /* rKey */) const { return 0; }

    const SmRect *  Add(const Key& /* rKey */, const SmRect& /* rRect */)
                    { return (const SmRect *)-1; }

    VirtualDevice * GetVirDev();

    void Reset() {};
};


////////////////////////////////////////////////////////////
//
// SmFace
//


class SmFace : public Font
{
    long    nBorderWidth;

    void    Impl_Init();

public:
    SmFace() :
        Font(), nBorderWidth(-1) { Impl_Init(); }
    SmFace(const Font& rFont) :
        Font(rFont), nBorderWidth(-1) { Impl_Init(); }
    SmFace(const String& rName, const Size& rSize) :
        Font(rName, rSize), nBorderWidth(-1) { Impl_Init(); }
    SmFace( FontFamily eFamily, const Size& rSize) :
        Font(eFamily, rSize), nBorderWidth(-1) { Impl_Init(); }

    SmFace(const SmFace &rFace) :
        Font(rFace), nBorderWidth(-1) { Impl_Init(); }

    // overloaded version in order to supply a min value
    // for font size (height). (Also used in ctor's to do so.)
    void    SetSize(const Size& rSize);

    void    SetBorderWidth(long nWidth)     { nBorderWidth = nWidth; }
    long    GetBorderWidth() const;
    long    GetDefaultBorderWidth() const   { return GetSize().Height() / 20 ; }
    void    FreezeBorderWidth()     { nBorderWidth = GetDefaultBorderWidth(); }

    SmFace & operator = (const SmFace &rFace);
};

SmFace & operator *= (SmFace &rFace, const Fraction &rFrac);


////////////////////////////////////////////////////////////
//
// SmPickList
//

class SmPickList : public SfxPtrArr
{
protected:
    USHORT  nSize;

    virtual void   *CreateItem(const String& rString) = 0;
    virtual void   *CreateItem(const void *pItem) = 0;
    virtual void    DestroyItem(void *pItem) = 0;

    virtual BOOL    CompareItem(const void *pFirstItem, const void *pSecondItem) const = 0;

    virtual String  GetStringItem(void *pItem) = 0;

    virtual void    LoadItem(SvStream& rStream, void *pItem) = 0;
    virtual void    SaveItem(SvStream& rStream, const void *pItem) const = 0;

    void       *GetPtr(USHORT nPos) const { return SfxPtrArr::GetObject(nPos); }
    void      *&GetPtr(USHORT nPos) { return SfxPtrArr::GetObject(nPos); }
    void        InsertPtr(USHORT nPos, void *pItem) { SfxPtrArr::Insert(nPos, pItem); }
    void        RemovePtr(USHORT nPos, USHORT nCount = 1) { SfxPtrArr::Remove(nPos, nCount); }

public:
    SmPickList(USHORT nInitSize = 0, USHORT nMaxSize = 5);
    ~SmPickList();


    void       *Get(USHORT nPos = 0) const { return GetPtr(nPos); }

    void       *operator [] (USHORT nPos) const { return GetPtr(nPos); }

    USHORT      GetSize() const { return nSize; }
    USHORT      Count() const { return SfxPtrArr::Count(); }

    void        Clear();

};

////////////////////////////////////////////////////////////
//
// SmFontPickList
//

class SmFontDialog;

class SmFontPickList : public SmPickList
{
protected:
    virtual void   *CreateItem(const String& /* rString */)
                    { return NULL; }

    virtual void   *CreateItem(const void* /* pItem */)
                    { return NULL; }

    virtual void    DestroyItem(void* /* pItem */)
                    {}

    virtual BOOL    CompareItem(const void * /*pFirstItem*/, const void * /*pSecondItem*/) const
                    { return FALSE; }

    virtual String  GetStringItem(void *pItem);

    virtual void    LoadItem(SvStream& /* rStream */, void* /* pItem */) {}
    virtual void    SaveItem(SvStream& /* rStream */, const void* /* pItem */) const {};

public:
    SmFontPickList()
        : SmPickList(0, 5) {}
    SmFontPickList(USHORT nInitSize, USHORT nMaxSize)
        : SmPickList(nInitSize, nMaxSize) {}
    SmFontPickList(const SmPickList& rOrig )
        : SmPickList(rOrig) {}
    ~SmFontPickList() { Clear(); }


    inline BOOL     Contains(const Font &rFont) const;
    inline Font     Get(USHORT nPos = 0) const;

    inline SmFontPickList&  operator = (const SmFontPickList& rList);
    inline Font             operator [] (USHORT nPos) const;

};

inline SmFontPickList& SmFontPickList::operator = (const SmFontPickList& rList)
{
    *(SmPickList *)this = *(SmPickList *)&rList; return *this;
}

inline Font SmFontPickList::operator [] (USHORT nPos) const
{
    return *((Font *)SmPickList::operator[](nPos));
}

inline Font SmFontPickList::Get(USHORT nPos) const
{
    return nPos < Count() ? *((Font *)SmPickList::Get(nPos)) : Font();
}

} //namespace binfilter
#endif

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