path: root/vcl/os2/source/gdi/salgdi3.cxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
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 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
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#define INCL_GRE_STRINGS
#define INCL_GPI
#define INCL_DOS

#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <svpm.h>

#define _SV_SALGDI3_CXX
#include <tools/svwin.h>
#include <rtl/tencinfo.h>
#include <osl/file.hxx>
#include <osl/thread.hxx>
#include <osl/process.h>
#include <vcl/svapp.hxx>
#include <saldata.hxx>
#include <salgdi.h>
#include <vcl/font.hxx>
#include <vcl/sallayout.hxx>
#include <tools/poly.hxx>
#include <tools/debug.hxx>
#include <rtl/textcvt.h>
#include <tools/debug.hxx>
#include <saldata.hxx>
#include <salgdi.h>
#include <vcl/outfont.hxx>
#include <sallayout.h>
#include <tools/poly.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>

#ifndef __H_FT2LIB
#include <wingdi.h>
#include <ft2lib.h>
#endif

#include "sft.hxx"

#ifdef GCP_KERN_HACK
#include <algorithm>
#endif

using namespace vcl;

// -----------
// - Inlines -
// -----------


inline W32FIXED FixedFromDouble( double d )
{
    const long l = (long) ( d * 65536. );
    return *(W32FIXED*) &l;
}

// -----------------------------------------------------------------------

inline int IntTimes256FromFixed(W32FIXED f)
{
    int nFixedTimes256 = (f.value << 8) + ((f.fract+0x80) >> 8);
    return nFixedTimes256;
}

// -----------
// - Defines -
// -----------

// this is a special codepage code, used to identify OS/2 symbol font.
#define SYMBOL_CHARSET                  65400

// =======================================================================

UniString ImplSalGetUniString( const sal_Char* pStr, xub_StrLen nLen = STRING_LEN)
{
    return UniString( pStr, nLen, gsl_getSystemTextEncoding(),
                      RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_DEFAULT |
                      RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_DEFAULT |
                      RTL_TEXTTOUNICODE_FLAGS_INVALID_DEFAULT );
}

// =======================================================================

static USHORT ImplSalToCharSet( CharSet eCharSet )
{
    // !!! Fuer DBCS-Systeme muss dieser Code auskommentiert werden und 0
    // !!! zurueckgegeben werden, solange die DBCS-Charsets nicht
    // !!! durchgereicht werden

    switch ( eCharSet )
    {
        case RTL_TEXTENCODING_IBM_437:
            return 437;

        case RTL_TEXTENCODING_IBM_850:
            return 850;

        case RTL_TEXTENCODING_IBM_860:
            return 860;

        case RTL_TEXTENCODING_IBM_861:
            return 861;

        case RTL_TEXTENCODING_IBM_863:
            return 863;

        case RTL_TEXTENCODING_IBM_865:
            return 865;
        case RTL_TEXTENCODING_MS_1252:
            return 1004;
        case RTL_TEXTENCODING_SYMBOL:
            return 65400;
    }

    return 0;
}

// -----------------------------------------------------------------------

static CharSet ImplCharSetToSal( USHORT usCodePage )
{
    switch ( usCodePage )
    {
        case 437:
            return RTL_TEXTENCODING_IBM_437;

        case 850:
            return RTL_TEXTENCODING_IBM_850;

        case 860:
            return RTL_TEXTENCODING_IBM_860;

        case 861:
            return RTL_TEXTENCODING_IBM_861;

        case 863:
            return RTL_TEXTENCODING_IBM_863;

        case 865:
            return RTL_TEXTENCODING_IBM_865;
        case 1004:
            return RTL_TEXTENCODING_MS_1252;
        case 65400:
            return RTL_TEXTENCODING_SYMBOL;
    }

    return RTL_TEXTENCODING_DONTKNOW;
}

// -----------------------------------------------------------------------

static FontFamily ImplFamilyToSal( BYTE bFamilyType )
{
    switch ( bFamilyType )
    {
        case 4:
            return FAMILY_DECORATIVE;
        case 3:
            return FAMILY_SCRIPT;
    }

    return FAMILY_DONTKNOW;
}

// -----------------------------------------------------------------------

static FontWeight ImplWeightToSal( USHORT nWeight )
{
    // Falls sich jemand an die alte Doku gehalten hat
    if ( nWeight > 999 )
        nWeight /= 1000;

    switch ( nWeight )
    {
        case 1:
            return WEIGHT_THIN;

        case 2:
            return WEIGHT_ULTRALIGHT;

        case 3:
            return WEIGHT_LIGHT;

        case 4:
            return WEIGHT_SEMILIGHT;

        case 5:
            return WEIGHT_NORMAL;

        case 6:
            return WEIGHT_SEMIBOLD;

        case 7:
            return WEIGHT_BOLD;

        case 8:
            return WEIGHT_ULTRABOLD;

        case 9:
            return WEIGHT_BLACK;
    }

    return WEIGHT_DONTKNOW;
}

// -----------------------------------------------------------------------

static UniString ImpStyleNameToSal( const char* pFamilyName,
                                   const char* pFaceName,
                                   USHORT nLen )
{
    if ( !nLen )
        nLen = strlen(pFamilyName);

    // strip FamilyName from FaceName
    if ( strncmp( pFamilyName, pFaceName, nLen ) == 0 )
    {
        USHORT nFaceLen = (USHORT)strlen( pFaceName+nLen );
        // Ist Facename laenger, schneiden wir den FamilyName ab
        if ( nFaceLen > 1 )
            return UniString( pFaceName+(nLen+1), gsl_getSystemTextEncoding());
        else
            return UniString();
    }
    else
        return UniString( pFaceName, gsl_getSystemTextEncoding());
}

// -----------------------------------------------------------------------

inline FontPitch ImplLogPitchToSal( BYTE fsType )
{
    if ( fsType & FM_TYPE_FIXED )
        return PITCH_FIXED;
    else
        return PITCH_VARIABLE;
}

// -----------------------------------------------------------------------

inline BYTE ImplPitchToWin( FontPitch ePitch )
{
    if ( ePitch == PITCH_FIXED )
        return FM_TYPE_FIXED;
    //else if ( ePitch == PITCH_VARIABLE )

    return 0;
}

// -----------------------------------------------------------------------

static ImplDevFontAttributes Os2Font2DevFontAttributes( const PFONTMETRICS pFontMetric)
{
    ImplDevFontAttributes aDFA;

    // get font face attributes
    aDFA.meFamily       = ImplFamilyToSal( pFontMetric->panose.bFamilyType);
    aDFA.meWidthType    = WIDTH_DONTKNOW;
    aDFA.meWeight       = ImplWeightToSal( pFontMetric->usWeightClass);
    aDFA.meItalic       = (pFontMetric->fsSelection & FM_SEL_ITALIC) ? ITALIC_NORMAL : ITALIC_NONE;
    aDFA.mePitch        = ImplLogPitchToSal( pFontMetric->fsType );
    aDFA.mbSymbolFlag   = (pFontMetric->usCodePage == SYMBOL_CHARSET);

    // get the font face name
    // the maName field stores the font name without the style, so under OS/2
    // we must use the family name
    aDFA.maName = UniString( pFontMetric->szFamilyname, gsl_getSystemTextEncoding());

    aDFA.maStyleName = ImpStyleNameToSal( pFontMetric->szFamilyname,
                                           pFontMetric->szFacename,
                                           strlen( pFontMetric->szFamilyname) );

    // get device specific font attributes
    aDFA.mbOrientation  = (pFontMetric->fsDefn & FM_DEFN_OUTLINE) != 0;
    aDFA.mbDevice       = (pFontMetric->fsDefn & FM_DEFN_GENERIC) ? FALSE : TRUE;

    aDFA.mbEmbeddable   = false;
    aDFA.mbSubsettable  = false;
    DWORD fontType = Ft2QueryFontType( 0, pFontMetric->szFamilyname);
    if( fontType == FT2_FONTTYPE_TRUETYPE && !aDFA.mbDevice)
        aDFA.mbSubsettable = true;
    // for now we can only embed Type1 fonts
    if( fontType == FT2_FONTTYPE_TYPE1 )
        aDFA.mbEmbeddable = true;

    // heuristics for font quality
    // -   standard-type1 > opentypeTT > truetype > non-standard-type1 > raster
    // -   subsetting > embedding > none
    aDFA.mnQuality = 0;
    if( fontType == FT2_FONTTYPE_TRUETYPE )
        aDFA.mnQuality += 50;
    if( aDFA.mbSubsettable )
        aDFA.mnQuality += 200;
    else if( aDFA.mbEmbeddable )
        aDFA.mnQuality += 100;

    // #i38665# prefer Type1 versions of the standard postscript fonts
    if( aDFA.mbEmbeddable )
    {
        if( aDFA.maName.EqualsAscii( "AvantGarde" )
        ||  aDFA.maName.EqualsAscii( "Bookman" )
        ||  aDFA.maName.EqualsAscii( "Courier" )
        ||  aDFA.maName.EqualsAscii( "Helvetica" )
        ||  aDFA.maName.EqualsAscii( "NewCenturySchlbk" )
        ||  aDFA.maName.EqualsAscii( "Palatino" )
        ||  aDFA.maName.EqualsAscii( "Symbol" )
        ||  aDFA.maName.EqualsAscii( "Times" )
        ||  aDFA.maName.EqualsAscii( "ZapfChancery" )
        ||  aDFA.maName.EqualsAscii( "ZapfDingbats" ) )
            aDFA.mnQuality += 500;
    }

    aDFA.meEmbeddedBitmap = EMBEDDEDBITMAP_DONTKNOW;
    aDFA.meAntiAlias = ANTIALIAS_DONTKNOW;

    // TODO: add alias names

    return aDFA;
}

// =======================================================================

// -----------------------------------------------------------------------

// =======================================================================

ImplOs2FontData::ImplOs2FontData( PFONTMETRICS _pFontMetric,
    int nHeight, BYTE nPitchAndFamily )
:   ImplFontData( Os2Font2DevFontAttributes(_pFontMetric), 0 ),
    pFontMetric( _pFontMetric ),
    meOs2CharSet( _pFontMetric->usCodePage),
    mnPitchAndFamily( nPitchAndFamily ),
    mpFontCharSets( NULL ),
    mpUnicodeMap( NULL ),
    mbDisableGlyphApi( false ),
    mbHasKoreanRange( false ),
    mbHasCJKSupport( false ),
    mbAliasSymbolsLow( false ),
    mbAliasSymbolsHigh( false ),
    mnId( 0 )
{
    SetBitmapSize( 0, nHeight );
}

// -----------------------------------------------------------------------

ImplOs2FontData::~ImplOs2FontData()
{
    delete[] mpFontCharSets;

    if( mpUnicodeMap )
        mpUnicodeMap->DeReference();
}

// -----------------------------------------------------------------------

sal_IntPtr ImplOs2FontData::GetFontId() const
{
    return mnId;
}

// -----------------------------------------------------------------------

void ImplOs2FontData::UpdateFromHPS( HPS hPS ) const
{
    // short circuit if already initialized
    if( mpUnicodeMap != NULL )
        return;

    ReadCmapTable( hPS );
    ReadOs2Table( hPS );

    // even if the font works some fonts have problems with the glyph API
    // => the heuristic below tries to figure out which fonts have the problem
    DWORD   fontType = Ft2QueryFontType( 0, pFontMetric->szFacename);
    if( fontType != FT2_FONTTYPE_TRUETYPE
        && (pFontMetric->fsDefn & FM_DEFN_GENERIC) == 0)
        mbDisableGlyphApi = true;
}

// -----------------------------------------------------------------------

#ifdef GNG_VERT_HACK
bool ImplOs2FontData::HasGSUBstitutions( HPS hPS ) const
{
    if( !mbGsubRead )
        ReadGsubTable( hPS );
    return !maGsubTable.empty();
}

// -----------------------------------------------------------------------

bool ImplOs2FontData::IsGSUBstituted( sal_Ucs cChar ) const
{
    return( maGsubTable.find( cChar ) != maGsubTable.end() );
}
#endif // GNG_VERT_HACK

// -----------------------------------------------------------------------

ImplFontCharMap* ImplOs2FontData::GetImplFontCharMap() const
{
    mpUnicodeMap->AddReference();
    return mpUnicodeMap;
}

// -----------------------------------------------------------------------

static unsigned GetUInt( const unsigned char* p ) { return((p[0]<<24)+(p[1]<<16)+(p[2]<<8)+p[3]);}
static unsigned GetUShort( const unsigned char* p ){ return((p[0]<<8)+p[1]);}
static signed GetSShort( const unsigned char* p ){ return((short)((p[0]<<8)+p[1]));}
static inline DWORD CalcTag( const char p[4]) { return (p[0]+(p[1]<<8)+(p[2]<<16)+(p[3]<<24)); }

void ImplOs2FontData::ReadOs2Table( HPS hPS ) const
{
    const DWORD Os2Tag = CalcTag( "OS/2" );
    DWORD nLength = Ft2GetFontData( hPS, Os2Tag, 0, NULL, 0 );
    if( (nLength == FT2_ERROR) || !nLength )
        return;
    std::vector<unsigned char> aOS2map( nLength );
    unsigned char* pOS2map = &aOS2map[0];
    DWORD nRC = Ft2GetFontData( hPS, Os2Tag, 0, pOS2map, nLength );
    sal_uInt32 nVersion = GetUShort( pOS2map );
    if ( nVersion >= 0x0001 && nLength >= 58 )
    {
        // We need at least version 0x0001 (TrueType rev 1.66)
        // to have access to the needed struct members.
        sal_uInt32 ulUnicodeRange1 = GetUInt( pOS2map + 42 );
        sal_uInt32 ulUnicodeRange2 = GetUInt( pOS2map + 46 );
        sal_uInt32 ulUnicodeRange3 = GetUInt( pOS2map + 50 );
        sal_uInt32 ulUnicodeRange4 = GetUInt( pOS2map + 54 );

        // Check for CJK capabilities of the current font
        mbHasCJKSupport = (ulUnicodeRange2 & 0x2fff0000)
                        | (ulUnicodeRange3 & 0x00000001);
        mbHasKoreanRange= (ulUnicodeRange1 & 0x10000000)
                        | (ulUnicodeRange2 & 0x01100000);
    }
}


// -----------------------------------------------------------------------

#ifdef GNG_VERT_HACK
void ImplOs2FontData::ReadGsubTable( HPS hPS ) const
{
    mbGsubRead = true;

    // check the existence of a GSUB table
    const DWORD GsubTag = CalcTag( "GSUB" );
    DWORD nRC = Ft2GetFontData( hPS, GsubTag, 0, NULL, 0 );
    if( (nRC == FT2_ERROR) || !nRC )
        return;

    // TODO: directly read the GSUB table instead of going through sft

    // get raw font file data
    DWORD nFontSize = Ft2GetFontData( hPS, 0, 0, NULL, 0 );
    if( nFontSize == FT2_ERROR )
        return;
    std::vector<char> aRawFont( nFontSize+1 );
    aRawFont[ nFontSize ] = 0;
    DWORD nFontSize2 = Ft2GetFontData( hPS, 0, 0, (void*)&aRawFont[0], nFontSize );
    if( nFontSize != nFontSize2 )
        return;

    // open font file
    sal_uInt32 nFaceNum = 0;
    if( !aRawFont[0] )  // TTC candidate
        nFaceNum = ~0U;  // indicate "TTC font extracts only"

    TrueTypeFont* pTTFont = NULL;
    ::OpenTTFontBuffer( &aRawFont[0], nFontSize, nFaceNum, &pTTFont );
    if( !pTTFont )
        return;

    // add vertically substituted characters to list
    static const sal_Unicode aGSUBCandidates[] = {
        0x0020, 0x0080, // ASCII
        0x2000, 0x2600, // misc
        0x3000, 0x3100, // CJK punctutation
        0x3300, 0x3400, // squared words
        0xFF00, 0xFFF0, // halfwidth|fullwidth forms
    0 };

    for( const sal_Unicode* pPair = aGSUBCandidates; *pPair; pPair += 2 )
        for( sal_Unicode cChar = pPair[0]; cChar < pPair[1]; ++cChar )
            if( ::MapChar( pTTFont, cChar, 0 ) != ::MapChar( pTTFont, cChar, 1 ) )
                maGsubTable.insert( cChar ); // insert GSUBbed unicodes

    CloseTTFont( pTTFont );
}
#endif // GNG_VERT_HACK

// -----------------------------------------------------------------------

void ImplOs2FontData::ReadCmapTable( HPS hPS ) const
{
    CmapResult aResult;
    aResult.mnPairCount = 0;
    aResult.mbSymbolic  = (meOs2CharSet == SYMBOL_CHARSET);
    aResult.mbRecoded   = true;

    // get the CMAP table from the font which is selected into the DC
    const DWORD CmapTag = CalcTag( "cmap" );
    DWORD nRC = Ft2GetFontData( hPS, CmapTag, 0, NULL, 0 );
    // read the CMAP table if available
    if( nRC != FT2_ERROR )
    {
        const int nLength = nRC;
        std::vector<unsigned char> aCmap( nLength );
        unsigned char* pCmap = &aCmap[0];
        nRC = Ft2GetFontData( hPS, CmapTag, 0, pCmap, nLength );
        // parse the CMAP table
        if( nRC == nLength )
            ParseCMAP( pCmap, nLength, aResult );
    } else {
        // we need to define at least a simple charmap, otherwise this font
        // will be mapped to default charmap, and OOo doesn't accept the
        // system font to match the default charmap
        aResult.mnPairCount = 1;
        // ImplFontCharMap destructor will free this memory
        aResult.mpPairCodes = new sal_uInt32[ 2 * aResult.mnPairCount ];
        aResult.mpPairCodes[0] = 0x0020;
        aResult.mpPairCodes[1] = 0x00FF;
        aResult.mpStartGlyphs = NULL;
    }

    mbDisableGlyphApi |= aResult.mbRecoded;

    if( aResult.mnPairCount > 0 )
        mpUnicodeMap = new ImplFontCharMap( aResult.mnPairCount,
            aResult.mpPairCodes, aResult.mpStartGlyphs );
    else
        mpUnicodeMap = ImplFontCharMap::GetDefaultMap();
}

// =======================================================================

void Os2SalGraphics::SetTextColor( SalColor nSalColor )
{
    CHARBUNDLE cb;

    cb.lColor = RGBCOLOR( SALCOLOR_RED( nSalColor ),
                          SALCOLOR_GREEN( nSalColor ),
                          SALCOLOR_BLUE( nSalColor ) );

    // set default color attributes
    Ft2SetAttrs( mhPS,
                 PRIM_CHAR,
                 CBB_COLOR,
                 0,
                 &cb );
}

// -----------------------------------------------------------------------

USHORT Os2SalGraphics::ImplDoSetFont( ImplFontSelectData* i_pFont, float& o_rFontScale, int nFallbackLevel)
{

#if OSL_DEBUG_LEVEL>10
    debug_printf( "Os2SalGraphics::ImplDoSetFont\n");
#endif

    ImplOs2FontData* pFontData = (ImplOs2FontData*)i_pFont->mpFontData;
    PFONTMETRICS    pFontMetric = NULL;
    FATTRS          aFAttrs;
    BOOL            bOutline = FALSE;
    APIRET          rc;

    memset( &aFAttrs, 0, sizeof( FATTRS ) );
    aFAttrs.usRecordLength = sizeof( FATTRS );

    aFAttrs.lMaxBaselineExt = i_pFont->mnHeight;
    aFAttrs.lAveCharWidth   = i_pFont->mnWidth;

    // do we have a pointer to the FONTMETRICS of the selected font? -> use it!
    if ( pFontData )
    {
        pFontMetric = pFontData->GetFontMetrics();

        bOutline = (pFontMetric->fsDefn & FM_DEFN_OUTLINE) != 0;

        // use match&registry fields to get correct match
        aFAttrs.lMatch          = pFontMetric->lMatch;
        aFAttrs.idRegistry      = pFontMetric->idRegistry;
        aFAttrs.usCodePage      = pFontMetric->usCodePage;

        if ( bOutline )
        {
            aFAttrs.fsFontUse |= FATTR_FONTUSE_OUTLINE;
            if ( i_pFont->mnOrientation )
                aFAttrs.fsFontUse |= FATTR_FONTUSE_TRANSFORMABLE;
        }
        else
        {
            aFAttrs.lMaxBaselineExt = pFontMetric->lMaxBaselineExt;
            aFAttrs.lAveCharWidth   = pFontMetric->lAveCharWidth;
        }

    }

    // use family name for outline fonts
    if ( mbPrinter ) {
        // use font face name for printers because otherwise ft2lib will fail
        // to select the correct font for GPI (ticket#117)
        strncpy( (char*)(aFAttrs.szFacename), pFontMetric->szFacename, sizeof( aFAttrs.szFacename ) );
    } else if ( !pFontMetric) {
        // use OOo name if fontmetrics not available!
        ByteString aName( i_pFont->maName.GetToken( 0 ), gsl_getSystemTextEncoding());
        strncpy( (char*)(aFAttrs.szFacename), aName.GetBuffer(), sizeof( aFAttrs.szFacename ) );
    } else if ( bOutline) {
        // use fontmetric family name for outline fonts
        strncpy( (char*)(aFAttrs.szFacename), pFontMetric->szFamilyname, sizeof( aFAttrs.szFacename ) );
    } else {
        // use real font face name for bitmaps (WarpSans only)
        strncpy( (char*)(aFAttrs.szFacename), pFontMetric->szFacename, sizeof( aFAttrs.szFacename ) );
    }

    if ( i_pFont->meItalic != ITALIC_NONE )
        aFAttrs.fsSelection |= FATTR_SEL_ITALIC;
    if ( i_pFont->meWeight > WEIGHT_MEDIUM )
        aFAttrs.fsSelection |= FATTR_SEL_BOLD;

#if OSL_DEBUG_LEVEL>1
    if (pFontMetric->szFacename[0] == 'A') {
        debug_printf( "Os2SalGraphics::SetFont hps %x lMatch '%d'\n", mhPS, pFontMetric->lMatch);
        debug_printf( "Os2SalGraphics::SetFont hps %x fontmetrics facename '%s'\n", mhPS, pFontMetric->szFacename);
        debug_printf( "Os2SalGraphics::SetFont hps %x fattrs facename '%s'\n", mhPS, aFAttrs.szFacename);
    }
#endif

    Ft2DeleteSetId( mhPS, nFallbackLevel + LCID_BASE);
    if ( (rc=Ft2CreateLogFont( mhPS, NULL, nFallbackLevel + LCID_BASE, &aFAttrs)) == GPI_ERROR ) {
#if OSL_DEBUG_LEVEL>1
        ERRORID nLastError = WinGetLastError( GetSalData()->mhAB );
        debug_printf( "Os2SalGraphics::SetFont hps %x Ft2CreateLogFont failed err %x\n", mhPS, nLastError );
#endif
        return SAL_SETFONT_REMOVEANDMATCHNEW;
    }

    CHARBUNDLE aBundle;

    ULONG nAttrsDefault = 0;
    ULONG nAttrs = CBB_SET;
    aBundle.usSet = nFallbackLevel + LCID_BASE;

    if ( bOutline )
    {
        nAttrs |= CBB_BOX;
        aBundle.sizfxCell.cy = MAKEFIXED( i_pFont->mnHeight, 0 );

        if ( !i_pFont->mnWidth )
        {
            LONG nXFontRes;
            LONG nYFontRes;
            LONG nHeight;

            // Auf die Aufloesung achten, damit das Ergebnis auch auf
            // Drucken mit 180*360 DPI stimmt. Ausserdem muss gerundet
            // werden, da auf meinem OS2 beispielsweise als
            // Bildschirmaufloesung 3618*3622 PixelPerMeter zurueck-
            // gegeben wird
            GetResolution( nXFontRes, nYFontRes );
            nHeight = i_pFont->mnHeight;
            nHeight *= nXFontRes;
            nHeight += nYFontRes/2;
            nHeight /= nYFontRes;
            aBundle.sizfxCell.cx = MAKEFIXED( nHeight, 0 );
        }
        else
            aBundle.sizfxCell.cx = MAKEFIXED( i_pFont->mnWidth, 0 );
    }

    // set orientation for outlinefonts
    if ( i_pFont->mnOrientation )
    {
        if ( bOutline )
        {
            nAttrs |= CBB_ANGLE;
            double alpha = (double)(i_pFont->mnOrientation);
            alpha *= 0.0017453292;   // *PI / 1800
            mnOrientationY = (long) (1000.0 * sin( alpha ));
            mnOrientationX = (long) (1000.0 * cos( alpha ));
            aBundle.ptlAngle.x = mnOrientationX;
            aBundle.ptlAngle.y = mnOrientationY;
        }
        else
        {
            mnOrientationX = 1;
            mnOrientationY = 0;
            nAttrs |= CBB_ANGLE;
            aBundle.ptlAngle.x = 1;
            aBundle.ptlAngle.y = 0;
        }
    }
    else
    {
        mnOrientationX = 1;
        mnOrientationY = 0;
        nAttrs |= CBB_ANGLE;
        aBundle.ptlAngle.x = 1;
        aBundle.ptlAngle.y = 0;
    }

    rc = Ft2SetAttrs( mhPS, PRIM_CHAR, nAttrs, nAttrsDefault, &aBundle );

#if OSL_DEBUG_LEVEL>1
    FONTMETRICS aOS2Metric = {0};
    Ft2QueryFontMetrics( mhPS, sizeof( aOS2Metric ), &aOS2Metric );
#endif

    return 0;
}


USHORT Os2SalGraphics::SetFont( ImplFontSelectData* pFont, int nFallbackLevel )
{

    // return early if there is no new font
    if( !pFont )
    {
        mhDefFont = 0;
        return 0;
    }

#if OSL_DEBUG_LEVEL>10
    debug_printf( "Os2SalGraphics::SetFont\n");
#endif

    DBG_ASSERT( pFont->mpFontData, "WinSalGraphics mpFontData==NULL");
    mpOs2FontEntry[ nFallbackLevel ] = reinterpret_cast<ImplOs2FontEntry*>( pFont->mpFontEntry );
    mpOs2FontData[ nFallbackLevel ] = static_cast<const ImplOs2FontData*>( pFont->mpFontData );

    ImplDoSetFont( pFont, mfFontScale, nFallbackLevel);

    if( !mhDefFont )
    {
        // keep default font
        mhDefFont = nFallbackLevel + LCID_BASE;
    }
    else
    {
        // release no longer referenced font handles
        for( int i = nFallbackLevel; i < MAX_FALLBACK; ++i )
        {
            if( mhFonts[i] )
            {
                mhFonts[i] = 0;
            }
        }
    }

    // store new font in correct layer
    mhFonts[ nFallbackLevel ] = nFallbackLevel + LCID_BASE;

    // now the font is live => update font face
    if( mpOs2FontData[ nFallbackLevel ] )
        mpOs2FontData[ nFallbackLevel ]->UpdateFromHPS( mhPS );

    if( !nFallbackLevel )
    {
        mbFontKernInit = TRUE;
        if ( mpFontKernPairs )
        {
            delete[] mpFontKernPairs;
            mpFontKernPairs = NULL;
        }
        mnFontKernPairCount = 0;
    }

    // some printers have higher internal resolution, so their
    // text output would be different from what we calculated
    // => suggest DrawTextArray to workaround this problem
    if ( mbPrinter )
        return SAL_SETFONT_USEDRAWTEXTARRAY;
    else
        return 0;
}

// -----------------------------------------------------------------------

void Os2SalGraphics::GetFontMetric( ImplFontMetricData* pMetric, int nFallbackLevel )
{
    FONTMETRICS aOS2Metric;
    Ft2QueryFontMetrics( mhPS, sizeof( aOS2Metric ), &aOS2Metric );

#if OSL_DEBUG_LEVEL>1
    debug_printf( "Os2SalGraphics::GetFontMetric hps %x\n", mhPS);
    if (aOS2Metric.szFacename[0] == 'A') {
        debug_printf( "Os2SalGraphics::GetFontMetric hps %x fontmetrics facename '%s'\n", mhPS, aOS2Metric.szFacename);
        debug_printf( "Os2SalGraphics::GetFontMetric hps %x fontmetrics lMatch '%d'\n", mhPS, aOS2Metric.lMatch);
    }
#endif

    pMetric->maName             = UniString( aOS2Metric.szFamilyname, gsl_getSystemTextEncoding());
    pMetric->maStyleName        = ImpStyleNameToSal( aOS2Metric.szFamilyname,
                                                     aOS2Metric.szFacename,
                                                     strlen( aOS2Metric.szFamilyname ) );

    // device independent font attributes
    pMetric->meFamily       = ImplFamilyToSal( aOS2Metric.panose.bFamilyType);
    pMetric->mbSymbolFlag   = (aOS2Metric.usCodePage == SYMBOL_CHARSET);
    pMetric->meWeight       = ImplWeightToSal( aOS2Metric.usWeightClass );
    pMetric->mePitch        = ImplLogPitchToSal( aOS2Metric.fsType );
    pMetric->meItalic       = (aOS2Metric.fsSelection & FM_SEL_ITALIC) ? ITALIC_NORMAL : ITALIC_NONE;
    pMetric->mnSlant        = 0;

    // device dependend font attributes
    pMetric->mbDevice       = (aOS2Metric.fsDefn & FM_DEFN_GENERIC) ? FALSE : TRUE;
    pMetric->mbScalableFont = (aOS2Metric.fsDefn & FM_DEFN_OUTLINE) ? true : false;
    if( pMetric->mbScalableFont )
    {
        // check if there are kern pairs
        // TODO: does this work with GPOS kerning?
        pMetric->mbKernableFont = (aOS2Metric.sKerningPairs > 0);
    }
    else
    {
        // bitmap fonts cannot be rotated directly
        pMetric->mnOrientation  = 0;
        // bitmap fonts have no kerning
        pMetric->mbKernableFont = false;
    }

    // transformation dependend font metrics
    if ( aOS2Metric.fsDefn & FM_DEFN_OUTLINE )
    {
        pMetric->mnWidth       = aOS2Metric.lEmInc;
    }
    else
    {
        pMetric->mnWidth       = aOS2Metric.lAveCharWidth;
        pMetric->mnOrientation = 0;
    }
    pMetric->mnIntLeading       = aOS2Metric.lInternalLeading;
    pMetric->mnExtLeading       = aOS2Metric.lExternalLeading;
    pMetric->mnAscent           = aOS2Metric.lMaxAscender;
    pMetric->mnDescent          = aOS2Metric.lMaxDescender;

    // #107888# improved metric compatibility for Asian fonts...
    // TODO: assess workaround below for CWS >= extleading
    // TODO: evaluate use of aWinMetric.sTypo* members for CJK
    if( mpOs2FontData[nFallbackLevel] && mpOs2FontData[nFallbackLevel]->SupportsCJK() )
    {
        pMetric->mnIntLeading += pMetric->mnExtLeading;

        // #109280# The line height for Asian fonts is too small.
        // Therefore we add half of the external leading to the
        // ascent, the other half is added to the descent.
        const long nHalfTmpExtLeading = pMetric->mnExtLeading / 2;
        const long nOtherHalfTmpExtLeading = pMetric->mnExtLeading - nHalfTmpExtLeading;

        // #110641# external leading for Asian fonts.
        // The factor 0.3 has been confirmed with experiments.
        long nCJKExtLeading = static_cast<long>(0.30 * (pMetric->mnAscent + pMetric->mnDescent));
        nCJKExtLeading -= pMetric->mnExtLeading;
        pMetric->mnExtLeading = (nCJKExtLeading > 0) ? nCJKExtLeading : 0;

        pMetric->mnAscent   += nHalfTmpExtLeading;
        pMetric->mnDescent  += nOtherHalfTmpExtLeading;

        // #109280# HACK korean only: increase descent for wavelines and impr
        // YD win9x only
    }

}

// -----------------------------------------------------------------------

ULONG Os2SalGraphics::GetKernPairs( ULONG nPairs, ImplKernPairData* pKernPairs )
{
    DBG_ASSERT( sizeof( KERNINGPAIRS ) == sizeof( ImplKernPairData ),
                "Os2SalGraphics::GetKernPairs(): KERNINGPAIRS != ImplKernPairData" );

    if ( mbFontKernInit )
    {
        if( mpFontKernPairs )
        {
            delete[] mpFontKernPairs;
            mpFontKernPairs = NULL;
        }
        mnFontKernPairCount = 0;

        {
            KERNINGPAIRS* pPairs = NULL;
            FONTMETRICS aOS2Metric;
            Ft2QueryFontMetrics( mhPS, sizeof( aOS2Metric ), &aOS2Metric );
            int nCount = aOS2Metric.sKerningPairs;
            if( nCount )
            {
#ifdef GCP_KERN_HACK
                pPairs = new KERNINGPAIRS[ nCount+1 ];
                mpFontKernPairs = pPairs;
                mnFontKernPairCount = nCount;
                Ft2QueryKerningPairs( mhPS, nCount, (KERNINGPAIRS*)pPairs );
#else // GCP_KERN_HACK
                pPairs = (KERNINGPAIRS*)pKernPairs;
                nCount = (nCount < nPairs) ? nCount : nPairs;
                Ft2QueryKerningPairs( mhPS, nCount, (KERNINGPAIRS*)pPairs );
                return nCount;
#endif // GCP_KERN_HACK
            }
        }

        mbFontKernInit = FALSE;

        std::sort( mpFontKernPairs, mpFontKernPairs + mnFontKernPairCount, ImplCmpKernData );
    }

    if( !pKernPairs )
        return mnFontKernPairCount;
    else if( mpFontKernPairs )
    {
        if ( nPairs < mnFontKernPairCount )
            nPairs = mnFontKernPairCount;
        memcpy( pKernPairs, mpFontKernPairs,
                nPairs*sizeof( ImplKernPairData ) );
        return nPairs;
    }

    return 0;
}


// -----------------------------------------------------------------------

static ImplFontCharMap* pOs2DefaultImplFontCharMap = NULL;
static const sal_uInt32 pOs2DefaultRangeCodes[] = {0x0020,0x00FF};

ImplFontCharMap* Os2SalGraphics::GetImplFontCharMap() const
{
    if( !mpOs2FontData[0] )
        return ImplFontCharMap::GetDefaultMap();
    return mpOs2FontData[0]->GetImplFontCharMap();
}

// -----------------------------------------------------------------------

bool Os2SalGraphics::AddTempDevFont( ImplDevFontList* pFontList,
    const String& rFontFileURL, const String& rFontName )
{
#if OSL_DEBUG_LEVEL>0
    debug_printf("Os2SalGraphics::AddTempDevFont\n");
#endif
    return false;
}

// -----------------------------------------------------------------------

void Os2SalGraphics::GetDevFontList( ImplDevFontList* pList )
{
    PFONTMETRICS    pFontMetrics;
    ULONG           nFontMetricCount;
    SalData*        pSalData;

#if OSL_DEBUG_LEVEL>0
    debug_printf("Os2SalGraphics::GetDevFontList\n");
#endif

    // install OpenSymbol
    HMODULE hMod;
    ULONG   ObjNum, Offset, rc;
    CHAR    Buff[2*_MAX_PATH];
    char    drive[_MAX_DRIVE], dir[_MAX_DIR];
    char    fname[_MAX_FNAME], ext[_MAX_EXT];
    // get module handle (and name)
    rc = DosQueryModFromEIP( &hMod, &ObjNum, sizeof( Buff), Buff,
                            &Offset, (ULONG)ImplSalGetUniString);
    DosQueryModuleName(hMod, sizeof(Buff), Buff);
    // replace module path with font path
    char* slash = strrchr( Buff, '\\');
    *slash = '\0';
    slash = strrchr( Buff, '\\');
    *slash = '\0';
    strcat( Buff, "\\SHARE\\FONTS\\TRUETYPE\\OPENS___.TTF");
    rc = GpiLoadPublicFonts( GetSalData()->mhAB, Buff);

    if ( !mbPrinter )
    {
        // Bei Bildschirm-Devices cachen wir die Liste global, da
        // dies im unabhaengigen Teil auch so gemacht wird und wir
        // ansonsten auf geloeschten Systemdaten arbeiten koennten
        pSalData = GetSalData();
        nFontMetricCount    = pSalData->mnFontMetricCount;
        pFontMetrics        = pSalData->mpFontMetrics;
        // Bei Bildschirm-Devices holen wir uns die Fontliste jedesmal neu
        if ( pFontMetrics )
        {
            delete pFontMetrics;
            pFontMetrics        = NULL;
            nFontMetricCount    = 0;
        }
    }
    else
    {
        nFontMetricCount    = mnFontMetricCount;
        pFontMetrics        = mpFontMetrics;
    }

    // do we have to create the cached font list first?
    if ( !pFontMetrics )
    {
        // query the number of fonts available
        LONG nTemp = 0;
        nFontMetricCount = Ft2QueryFonts( mhPS,
                                          QF_PUBLIC | QF_PRIVATE,
                                          NULL, &nTemp,
                                          sizeof( FONTMETRICS ), NULL );

        // procede only if at least one is available!
        if ( nFontMetricCount )
        {
            // allocate memory for font list
            pFontMetrics = new FONTMETRICS[nFontMetricCount];

            // query font list
            Ft2QueryFonts( mhPS,
                           QF_PUBLIC | QF_PRIVATE,
                           NULL,
                           (PLONG)&nFontMetricCount,
                           (LONG) sizeof( FONTMETRICS ),
                           pFontMetrics );
        }

        if ( !mbPrinter )
        {
            pSalData->mnFontMetricCount         = nFontMetricCount;
            pSalData->mpFontMetrics             = pFontMetrics;
        }
        else
        {
            mnFontMetricCount   = nFontMetricCount;
            mpFontMetrics       = pFontMetrics;
        }
    }

    // copy data from the font list
    for( ULONG i = 0; i < nFontMetricCount; i++ )
    {
        PFONTMETRICS pFontMetric = &pFontMetrics[i];

        // skip font starting with '@', this is an alias internally
        // used by truetype engine.
        if (pFontMetric->szFacename[0] == '@')
            continue;

        // skip bitmap fonts (but keep WarpSans)
        if ( (pFontMetric->fsDefn & FM_DEFN_OUTLINE) == 0
            && strncmp( pFontMetric->szFacename, "WarpSans", 8) )
            // Font nicht aufnehmen
            continue;

        // replace '-' in facename with ' ' (for ft2lib)
        char* dash = pFontMetric->szFacename;
        while( (dash=strchr( dash, '-')))
            *dash++ = ' ';

        // create new font list element
        ImplOs2FontData* pData      = new ImplOs2FontData( pFontMetric, 0, 0 );

        // add font list element to font list
        pList->Add( pData );

    }
}

// ----------------------------------------------------------------------------

void Os2SalGraphics::GetDevFontSubstList( OutputDevice* pOutDev )
{
}

// -----------------------------------------------------------------------

BOOL Os2SalGraphics::GetGlyphBoundRect( long nIndex, Rectangle& rRect )
{
    // use unity matrix
    MAT2 aMat;
    aMat.eM11 = aMat.eM22 = FixedFromDouble( 1.0 );
    aMat.eM12 = aMat.eM21 = FixedFromDouble( 0.0 );

    UINT nGGOFlags = GGO_METRICS;
    if( !(nIndex & GF_ISCHAR) )
        nGGOFlags |= GGO_GLYPH_INDEX;
    nIndex &= GF_IDXMASK;

    GLYPHMETRICS aGM;
    DWORD nSize = FT2_ERROR;
    nSize = Ft2GetGlyphOutline( mhPS, nIndex, nGGOFlags, &aGM, 0, NULL, &aMat );
    if( nSize == FT2_ERROR )
        return false;

    rRect = Rectangle( Point( +aGM.gmptGlyphOrigin.x, -aGM.gmptGlyphOrigin.y ),
        Size( aGM.gmBlackBoxX, aGM.gmBlackBoxY ) );
    rRect.Left()    = static_cast<int>( mfFontScale * rRect.Left() );
    rRect.Right()   = static_cast<int>( mfFontScale * rRect.Right() );
    rRect.Top()     = static_cast<int>( mfFontScale * rRect.Top() );
    rRect.Bottom()  = static_cast<int>( mfFontScale * rRect.Bottom() );
    return true;
}

// -----------------------------------------------------------------------

BOOL Os2SalGraphics::GetGlyphOutline( long nIndex, ::basegfx::B2DPolyPolygon& rB2DPolyPoly )
{
#if OSL_DEBUG_LEVEL>0
    debug_printf("Os2SalGraphics::GetGlyphOutline\n");
#endif
    rB2DPolyPoly.clear();

    BOOL bRet = FALSE;

    // use unity matrix
    MAT2 aMat;
    aMat.eM11 = aMat.eM22 = FixedFromDouble( 1.0 );
    aMat.eM12 = aMat.eM21 = FixedFromDouble( 0.0 );

    UINT nGGOFlags = GGO_NATIVE;
    if( !(nIndex & GF_ISCHAR) )
        nGGOFlags |= GGO_GLYPH_INDEX;
    nIndex &= GF_IDXMASK;

    GLYPHMETRICS aGlyphMetrics;
    DWORD nSize1 = FT2_ERROR;
    nSize1 = Ft2GetGlyphOutline( mhPS, nIndex, nGGOFlags, &aGlyphMetrics, 0, NULL, &aMat );

    if( !nSize1 )       // blank glyphs are ok
        bRet = TRUE;
    else if( nSize1 != FT2_ERROR )
    {
        BYTE*   pData = new BYTE[ nSize1 ];
        ULONG   nTotalCount = 0;
        DWORD   nSize2;
        nSize2 = Ft2GetGlyphOutline( mhPS, nIndex, nGGOFlags,
                &aGlyphMetrics, nSize1, pData, &aMat );

        if( nSize1 == nSize2 )
        {
            bRet = TRUE;

            int     nPtSize = 512;
            Point*  pPoints = new Point[ nPtSize ];
            BYTE*   pFlags = new BYTE[ nPtSize ];

            TTPOLYGONHEADER* pHeader = (TTPOLYGONHEADER*)pData;
            while( (BYTE*)pHeader < pData+nSize2 )
            {
                // only outline data is interesting
                if( pHeader->dwType != TT_POLYGON_TYPE )
                    break;

                // get start point; next start points are end points
                // of previous segment
                int nPnt = 0;

                long nX = IntTimes256FromFixed( pHeader->pfxStart.x );
                long nY = IntTimes256FromFixed( pHeader->pfxStart.y );
                pPoints[ nPnt ] = Point( nX, nY );
                pFlags[ nPnt++ ] = POLY_NORMAL;

                bool bHasOfflinePoints = false;
                TTPOLYCURVE* pCurve = (TTPOLYCURVE*)( pHeader + 1 );
                pHeader = (TTPOLYGONHEADER*)( (BYTE*)pHeader + pHeader->cb );
                while( (BYTE*)pCurve < (BYTE*)pHeader )
                {
                    int nNeededSize = nPnt + 16 + 3 * pCurve->cpfx;
                    if( nPtSize < nNeededSize )
                    {
                        Point* pOldPoints = pPoints;
                        BYTE* pOldFlags = pFlags;
                        nPtSize = 2 * nNeededSize;
                        pPoints = new Point[ nPtSize ];
                        pFlags = new BYTE[ nPtSize ];
                        for( int i = 0; i < nPnt; ++i )
                        {
                            pPoints[ i ] = pOldPoints[ i ];
                            pFlags[ i ] = pOldFlags[ i ];
                        }
                        delete[] pOldPoints;
                        delete[] pOldFlags;
                    }

                    int i = 0;
                    if( TT_PRIM_LINE == pCurve->wType )
                    {
                        while( i < pCurve->cpfx )
                        {
                            nX = IntTimes256FromFixed( pCurve->apfx[ i ].x );
                            nY = IntTimes256FromFixed( pCurve->apfx[ i ].y );
                            ++i;
                            pPoints[ nPnt ] = Point( nX, nY );
                            pFlags[ nPnt ] = POLY_NORMAL;
                            ++nPnt;
                        }
                    }
                    else if( TT_PRIM_QSPLINE == pCurve->wType )
                    {
                        bHasOfflinePoints = true;
                        while( i < pCurve->cpfx )
                        {
                            // get control point of quadratic bezier spline
                            nX = IntTimes256FromFixed( pCurve->apfx[ i ].x );
                            nY = IntTimes256FromFixed( pCurve->apfx[ i ].y );
                            ++i;
                            Point aControlP( nX, nY );

                            // calculate first cubic control point
                            // P0 = 1/3 * (PBeg + 2 * PQControl)
                            nX = pPoints[ nPnt-1 ].X() + 2 * aControlP.X();
                            nY = pPoints[ nPnt-1 ].Y() + 2 * aControlP.Y();
                            pPoints[ nPnt+0 ] = Point( (2*nX+3)/6, (2*nY+3)/6 );
                            pFlags[ nPnt+0 ] = POLY_CONTROL;

                            // calculate endpoint of segment
                            nX = IntTimes256FromFixed( pCurve->apfx[ i ].x );
                            nY = IntTimes256FromFixed( pCurve->apfx[ i ].y );

                            if ( i+1 >= pCurve->cpfx )
                            {
                                // endpoint is either last point in segment => advance
                                ++i;
                            }
                            else
                            {
                                // or endpoint is the middle of two control points
                                nX += IntTimes256FromFixed( pCurve->apfx[ i-1 ].x );
                                nY += IntTimes256FromFixed( pCurve->apfx[ i-1 ].y );
                                nX = (nX + 1) / 2;
                                nY = (nY + 1) / 2;
                                // no need to advance, because the current point
                                // is the control point in next bezier spline
                            }

                            pPoints[ nPnt+2 ] = Point( nX, nY );
                            pFlags[ nPnt+2 ] = POLY_NORMAL;

                            // calculate second cubic control point
                            // P1 = 1/3 * (PEnd + 2 * PQControl)
                            nX = pPoints[ nPnt+2 ].X() + 2 * aControlP.X();
                            nY = pPoints[ nPnt+2 ].Y() + 2 * aControlP.Y();
                            pPoints[ nPnt+1 ] = Point( (2*nX+3)/6, (2*nY+3)/6 );
                            pFlags[ nPnt+1 ] = POLY_CONTROL;

                            nPnt += 3;
                        }
                    }

                    // next curve segment
                    pCurve = (TTPOLYCURVE*)&pCurve->apfx[ i ];
                }

                // end point is start point for closed contour
                // disabled, because Polygon class closes the contour itself
                // pPoints[nPnt++] = pPoints[0];
                // #i35928#
                // Added again, but add only when not yet closed
                if(pPoints[nPnt - 1] != pPoints[0])
                {
                    if( bHasOfflinePoints )
                        pFlags[nPnt] = pFlags[0];

                    pPoints[nPnt++] = pPoints[0];
                }

                // convert y-coordinates W32 -> VCL
                for( int i = 0; i < nPnt; ++i )
                    pPoints[i].Y() = -pPoints[i].Y();

                // insert into polypolygon
                Polygon aPoly( nPnt, pPoints, (bHasOfflinePoints ? pFlags : NULL) );
                // convert to B2DPolyPolygon
                // TODO: get rid of the intermediate PolyPolygon
                rB2DPolyPoly.append( aPoly.getB2DPolygon() );
            }

            delete[] pPoints;
            delete[] pFlags;
        }

        delete[] pData;
    }

    // rescaling needed for the PolyPolygon conversion
    if( rB2DPolyPoly.count() )
    {
        const double fFactor((1.0/256) * mfFontScale);
        rB2DPolyPoly.transform(basegfx::tools::createScaleB2DHomMatrix(fFactor, fFactor));
    }

    return bRet;
}

// -----------------------------------------------------------------------

// TODO:  Replace this class with boost::scoped_array
class ScopedCharArray
{
public:
    inline explicit ScopedCharArray(char * pArray): m_pArray(pArray) {}

    inline ~ScopedCharArray() { delete[] m_pArray; }

    inline char * get() const { return m_pArray; }

private:
    char * m_pArray;
};

class ScopedFont
{
public:
    explicit ScopedFont(Os2SalGraphics & rData);

    ~ScopedFont();

private:
    Os2SalGraphics & m_rData;
    ULONG m_hOrigFont;
};

ScopedFont::ScopedFont(Os2SalGraphics & rData): m_rData(rData)
{
}

ScopedFont::~ScopedFont()
{
}

class ScopedTrueTypeFont
{
public:
    inline ScopedTrueTypeFont(): m_pFont(0) {}

    ~ScopedTrueTypeFont();

    int open(void * pBuffer, sal_uInt32 nLen, sal_uInt32 nFaceNum);

    inline TrueTypeFont * get() const { return m_pFont; }

private:
    TrueTypeFont * m_pFont;
};

ScopedTrueTypeFont::~ScopedTrueTypeFont()
{
    if (m_pFont != 0)
        CloseTTFont(m_pFont);
}

int ScopedTrueTypeFont::open(void * pBuffer, sal_uInt32 nLen,
                             sal_uInt32 nFaceNum)
{
    OSL_ENSURE(m_pFont == 0, "already open");
    return OpenTTFontBuffer(pBuffer, nLen, nFaceNum, &m_pFont);
}

BOOL Os2SalGraphics::CreateFontSubset( const rtl::OUString& rToFile,
    const ImplFontData* pFont, long* pGlyphIDs, sal_uInt8* pEncoding,
    sal_Int32* pGlyphWidths, int nGlyphCount, FontSubsetInfo& rInfo )
{
    // create matching ImplFontSelectData
    // we need just enough to get to the font file data
    // use height=1000 for easier debugging (to match psprint's font units)
    ImplFontSelectData aIFSD( *pFont, Size(0,1000), 1000.0, 0, false );

    // TODO: much better solution: move SetFont and restoration of old font to caller
    ScopedFont aOldFont(*this);
    SetFont( &aIFSD, 0 );

#if OSL_DEBUG_LEVEL > 100
    // get font metrics
    TEXTMETRICA aWinMetric;
    if( !::GetTextMetricsA( mhDC, &aWinMetric ) )
        return FALSE;

    DBG_ASSERT( !(aWinMetric.tmPitchAndFamily & TMPF_DEVICE), "cannot subset device font" );
    DBG_ASSERT( aWinMetric.tmPitchAndFamily & TMPF_TRUETYPE, "can only subset TT font" );
#endif

    // get raw font file data
    DWORD nFontSize1 = Ft2GetFontData( mhPS, 0, 0, NULL, 0 );
    if( nFontSize1 == FT2_ERROR )
        return FALSE;
    ScopedCharArray xRawFontData(new char[ nFontSize1 ]);
    DWORD nFontSize2 = Ft2GetFontData( mhPS, 0, 0, (void*)xRawFontData.get(), nFontSize1 );
    if( nFontSize1 != nFontSize2 )
        return FALSE;

    // open font file
    sal_uInt32 nFaceNum = 0;
    if( !*xRawFontData.get() )  // TTC candidate
        nFaceNum = ~0U;  // indicate "TTC font extracts only"

    ScopedTrueTypeFont aSftTTF;
    int nRC = aSftTTF.open( xRawFontData.get(), nFontSize1, nFaceNum );
    if( nRC != SF_OK )
        return FALSE;

    TTGlobalFontInfo aTTInfo;
    ::GetTTGlobalFontInfo( aSftTTF.get(), &aTTInfo );
    rInfo.m_nFontType   = SAL_FONTSUBSETINFO_TYPE_TRUETYPE;
    rInfo.m_aPSName     = ImplSalGetUniString( aTTInfo.psname );
    rInfo.m_nAscent     = +aTTInfo.winAscent;
    rInfo.m_nDescent    = -aTTInfo.winDescent;
    rInfo.m_aFontBBox   = Rectangle( Point( aTTInfo.xMin, aTTInfo.yMin ),
                                    Point( aTTInfo.xMax, aTTInfo.yMax ) );
    rInfo.m_nCapHeight  = aTTInfo.yMax; // Well ...

    // subset glyphs and get their properties
    // take care that subset fonts require the NotDef glyph in pos 0
    int nOrigCount = nGlyphCount;
    USHORT    aShortIDs[ 256 ];
    sal_uInt8 aTempEncs[ 256 ];

    int nNotDef=-1, i;
    for( i = 0; i < nGlyphCount; ++i )
    {
        aTempEncs[i] = pEncoding[i];
        sal_uInt32 nGlyphIdx = pGlyphIDs[i] & GF_IDXMASK;
        if( pGlyphIDs[i] & GF_ISCHAR )
        {
            bool bVertical = (pGlyphIDs[i] & GF_ROTMASK) != 0;
            nGlyphIdx = ::MapChar( aSftTTF.get(), sal::static_int_cast<sal_uInt16>(nGlyphIdx), bVertical );
            if( nGlyphIdx == 0 && pFont->IsSymbolFont() )
            {
                // #i12824# emulate symbol aliasing U+FXXX <-> U+0XXX
                nGlyphIdx = pGlyphIDs[i] & GF_IDXMASK;
                nGlyphIdx = (nGlyphIdx & 0xF000) ? (nGlyphIdx & 0x00FF) : (nGlyphIdx | 0xF000 );
                nGlyphIdx = ::MapChar( aSftTTF.get(), sal::static_int_cast<sal_uInt16>(nGlyphIdx), bVertical );
            }
        }
        aShortIDs[i] = static_cast<USHORT>( nGlyphIdx );
        if( !nGlyphIdx )
            if( nNotDef < 0 )
                nNotDef = i; // first NotDef glyph found
    }

    if( nNotDef != 0 )
    {
        // add fake NotDef glyph if needed
        if( nNotDef < 0 )
            nNotDef = nGlyphCount++;

        // NotDef glyph must be in pos 0 => swap glyphids
        aShortIDs[ nNotDef ] = aShortIDs[0];
        aTempEncs[ nNotDef ] = aTempEncs[0];
        aShortIDs[0] = 0;
        aTempEncs[0] = 0;
    }
    DBG_ASSERT( nGlyphCount < 257, "too many glyphs for subsetting" );

    // fill pWidth array
    TTSimpleGlyphMetrics* pMetrics =
        ::GetTTSimpleGlyphMetrics( aSftTTF.get(), aShortIDs, nGlyphCount, aIFSD.mbVertical );
    if( !pMetrics )
        return FALSE;
    sal_uInt16 nNotDefAdv   = pMetrics[0].adv;
    pMetrics[0].adv         = pMetrics[nNotDef].adv;
    pMetrics[nNotDef].adv   = nNotDefAdv;
    for( i = 0; i < nOrigCount; ++i )
        pGlyphWidths[i] = pMetrics[i].adv;
    free( pMetrics );

    // write subset into destination file
    rtl::OUString aSysPath;
    if( osl_File_E_None != osl_getSystemPathFromFileURL( rToFile.pData, &aSysPath.pData ) )
        return FALSE;
    rtl_TextEncoding aThreadEncoding = osl_getThreadTextEncoding();
    ByteString aToFile( rtl::OUStringToOString( aSysPath, aThreadEncoding ) );
    nRC = ::CreateTTFromTTGlyphs( aSftTTF.get(), aToFile.GetBuffer(), aShortIDs,
            aTempEncs, nGlyphCount, 0, NULL, 0 );
    return nRC == SF_OK;
}

//--------------------------------------------------------------------------

const void* Os2SalGraphics::GetEmbedFontData( const ImplFontData* pFont,
    const sal_Ucs* pUnicodes, sal_Int32* pCharWidths,
    FontSubsetInfo& rInfo, long* pDataLen )
{
    // create matching ImplFontSelectData
    // we need just enough to get to the font file data
    ImplFontSelectData aIFSD( *pFont, Size(0,1000), 1000.0, 0, false );

    // TODO: much better solution: move SetFont and restoration of old font to caller
    ScopedFont aOldFont(*this);
    SetFont( &aIFSD, 0 );

    // get the raw font file data
    DWORD nFontSize1 = Ft2GetFontData( mhPS, 0, 0, NULL, 0 );
    if( nFontSize1 == FT2_ERROR || nFontSize1 <= 0 )
    return NULL;
    *pDataLen = nFontSize1;
    void* pData = reinterpret_cast<void*>(new char[ nFontSize1 ]);
    DWORD nFontSize2 = Ft2GetFontData( mhPS, 0, 0, pData, nFontSize1 );
    if( nFontSize1 != nFontSize2 )
        *pDataLen = 0;

    // get important font properties
    FONTMETRICS aOS2Metric;
    if (Ft2QueryFontMetrics( mhPS, sizeof( aOS2Metric ), &aOS2Metric ) == GPI_ERROR)
            *pDataLen = 0;
    rInfo.m_nFontType   = SAL_FONTSUBSETINFO_TYPE_TYPE1;
    rInfo.m_aPSName     = ImplSalGetUniString( aOS2Metric.szFacename );
    rInfo.m_nAscent     = +aOS2Metric.lMaxAscender;
    rInfo.m_nDescent    = -aOS2Metric.lMaxDescender;
    rInfo.m_aFontBBox   = Rectangle( Point( 0, -aOS2Metric.lMaxDescender ),
              Point( aOS2Metric.lMaxCharInc, aOS2Metric.lMaxAscender+aOS2Metric.lExternalLeading ) );
    rInfo.m_nCapHeight  = aOS2Metric.lMaxAscender; // Well ...

    // get individual character widths
    for( int i = 0; i < 256; ++i )
    {
        LONG nCharWidth = 0;
        const sal_Ucs cChar = pUnicodes[i];
        if( !Ft2QueryStringWidthW( mhPS, (LPWSTR)&cChar, 1, &nCharWidth ) )
            *pDataLen = 0;
        pCharWidths[i] = nCharWidth;
    }

    if( !*pDataLen )
    {
        FreeEmbedFontData( pData, nFontSize1 );
        pData = NULL;
    }

    return pData;
}

//--------------------------------------------------------------------------

void Os2SalGraphics::FreeEmbedFontData( const void* pData, long /*nLen*/ )
{
    delete[] reinterpret_cast<char*>(const_cast<void*>(pData));
}

const Ucs2SIntMap* Os2SalGraphics::GetFontEncodingVector( const ImplFontData* pFont, const Ucs2OStrMap** pNonEncoded )
{
    // TODO: even for builtin fonts we get here... why?
    if( !pFont->IsEmbeddable() )
        return NULL;

    // fill the encoding vector
    Ucs2SIntMap& rMap = *new Ucs2SIntMap;

    for( sal_Unicode i = 32; i < 256; ++i )
        rMap[i] = i;
    if( pNonEncoded )
        *pNonEncoded = NULL;

    return &rMap;
}

//--------------------------------------------------------------------------

void Os2SalGraphics::GetGlyphWidths( const ImplFontData* pFont,
                                     bool bVertical,
                                     Int32Vector& rWidths,
                                     Ucs2UIntMap& rUnicodeEnc )
{
    // create matching ImplFontSelectData
    // we need just enough to get to the font file data
    ImplFontSelectData aIFSD( *pFont, Size(0,1000), 1000.0, 0, false );

    // TODO: much better solution: move SetFont and restoration of old font to caller
    ScopedFont aOldFont(*this);

    float fScale = 0.0;
    ImplDoSetFont( &aIFSD, fScale, 0);

    if( pFont->IsSubsettable() )
    {
        // get raw font file data
        DWORD nFontSize1 = ::Ft2GetFontData( mhPS, 0, 0, NULL, 0 );
        if( nFontSize1 == FT2_ERROR )
            return;
        ScopedCharArray xRawFontData(new char[ nFontSize1 ]);
        DWORD nFontSize2 = ::Ft2GetFontData( mhPS, 0, 0, (void*)xRawFontData.get(), nFontSize1 );
        if( nFontSize1 != nFontSize2 )
            return;

        // open font file
        sal_uInt32 nFaceNum = 0;
        if( !*xRawFontData.get() )  // TTC candidate
            nFaceNum = ~0U;  // indicate "TTC font extracts only"

        ScopedTrueTypeFont aSftTTF;
        int nRC = aSftTTF.open( xRawFontData.get(), nFontSize1, nFaceNum );
        if( nRC != SF_OK )
            return;

        int nGlyphs = GetTTGlyphCount( aSftTTF.get() );
        if( nGlyphs > 0 )
        {
            rWidths.resize(nGlyphs);
            std::vector<sal_uInt16> aGlyphIds(nGlyphs);
            for( int i = 0; i < nGlyphs; i++ )
                aGlyphIds[i] = sal_uInt16(i);
            TTSimpleGlyphMetrics* pMetrics = ::GetTTSimpleGlyphMetrics( aSftTTF.get(),
                                                                        &aGlyphIds[0],
                                                                        nGlyphs,
                                                                        bVertical ? 1 : 0 );
            if( pMetrics )
            {
                for( int i = 0; i< nGlyphs; i++ )
                    rWidths[i] = pMetrics[i].adv;
                free( pMetrics );
                rUnicodeEnc.clear();
            }
            const ImplOs2FontData* pWinFont = static_cast<const ImplOs2FontData*>(pFont);
            ImplFontCharMap* pMap = pWinFont->GetImplFontCharMap();
            DBG_ASSERT( pMap && pMap->GetCharCount(), "no map" );

            int nCharCount = pMap->GetCharCount();
            sal_uInt32 nChar = pMap->GetFirstChar();
            for( int i = 0; i < nCharCount; i++ )
            {
                if( nChar < 0x00010000 )
                {
                    sal_uInt16 nGlyph = ::MapChar( aSftTTF.get(),
                                                   static_cast<sal_uInt16>(nChar),
                                                   bVertical ? 1 : 0 );
                    if( nGlyph )
                        rUnicodeEnc[ static_cast<sal_Unicode>(nChar) ] = nGlyph;
                }
                nChar = pMap->GetNextChar( nChar );
            }
        }
    }
    else if( pFont->IsEmbeddable() )
    {
        // get individual character widths
        rWidths.clear();
        rUnicodeEnc.clear();
        rWidths.reserve( 224 );
        for( sal_Unicode i = 32; i < 256; ++i )
        {
            int nCharWidth = 0;
            if( Ft2QueryStringWidthW( mhPS, (LPWSTR)&i, 1, (LONG*)&nCharWidth ) )
            {
                rUnicodeEnc[ i ] = rWidths.size();
                rWidths.push_back( nCharWidth );
            }
        }
    }
}

//--------------------------------------------------------------------------

void Os2SalGraphics::DrawServerFontLayout( const ServerFontLayout& )
{}

//--------------------------------------------------------------------------

SystemFontData Os2SalGraphics::GetSysFontData( int nFallbacklevel ) const
{
    SystemFontData aSysFontData;

    if (nFallbacklevel >= MAX_FALLBACK) nFallbacklevel = MAX_FALLBACK - 1;
    if (nFallbacklevel < 0 ) nFallbacklevel = 0;

    aSysFontData.nSize = sizeof( SystemFontData );
    aSysFontData.hFont = mhFonts[nFallbacklevel];
    aSysFontData.bFakeBold = false;
    aSysFontData.bFakeItalic = false;
    aSysFontData.bAntialias = true;
    aSysFontData.bVerticalCharacterType = false;

    return aSysFontData;
}

//--------------------------------------------------------------------------

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