canvas/source/vcl/canvasfont.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_canvas.hxx"
  33
  34 #include <canvas/debug.hxx>
  35
  36 #include <rtl/math.hxx>
  37 #include <basegfx/numeric/ftools.hxx>
  38 #include <i18npool/mslangid.hxx>
  39 #include <vcl/metric.hxx>
  40
  41 #include "canvasfont.hxx"
  42 #include "textlayout.hxx"
  43
  44 using namespace ::com::sun::star;
  45
  46
  47 namespace vclcanvas
  48 {
  49     CanvasFont::CanvasFont( const rendering::FontRequest&                                       rFontRequest,
  50                             const uno::Sequence< beans::PropertyValue >&        ,
  51                             const geometry::Matrix2D&                                           rFontMatrix,
  52                             rendering::XGraphicDevice&                      rDevice,
  53                             const OutDevProviderSharedPtr&                  rOutDevProvider ) :
  54         CanvasFont_Base( m_aMutex ),
  55         maFont( Font( rFontRequest.FontDescription.FamilyName,
  56                       rFontRequest.FontDescription.StyleName,
  57                       Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ),
  58         maFontRequest( rFontRequest ),
  59         mpRefDevice( &rDevice ),
  60         mpOutDevProvider( rOutDevProvider )
  61     {
  62         maFont->SetAlign( ALIGN_BASELINE );
  63         maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==com::sun::star::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
  64         maFont->SetVertical( (rFontRequest.FontDescription.IsVertical==com::sun::star::util::TriState_YES) ? TRUE : FALSE );
  65
  66         // TODO(F2): improve panose->vclenum conversion
  67         maFont->SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) );
  68         maFont->SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL );
  69
  70         maFont->SetLanguage(MsLangId::convertLocaleToLanguage(rFontRequest.Locale));
  71
  72         // adjust to stretched/shrinked font
  73         if( !::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) )
  74         {
  75             OutputDevice& rOutDev( rOutDevProvider->getOutDev() );
  76
  77             const bool bOldMapState( rOutDev.IsMapModeEnabled() );
  78             rOutDev.EnableMapMode(FALSE);
  79
  80             const Size aSize = rOutDev.GetFontMetric( *maFont ).GetSize();
  81
  82             const double fDividend( rFontMatrix.m10 + rFontMatrix.m11 );
  83             double fStretch = (rFontMatrix.m00 + rFontMatrix.m01);
  84
  85             if( !::basegfx::fTools::equalZero( fDividend) )
  86                 fStretch /= fDividend;
  87
  88             const long nNewWidth = ::basegfx::fround( aSize.Width() * fStretch );
  89
  90             maFont->SetWidth( nNewWidth );
  91
  92             rOutDev.EnableMapMode(bOldMapState);
  93         }
  94     }
  95
  96     void SAL_CALL CanvasFont::disposing()
  97     {
  98         tools::LocalGuard aGuard;
  99
 100         mpOutDevProvider.reset();
 101         mpRefDevice.clear();
 102     }
 103
 104     uno::Reference< rendering::XTextLayout > SAL_CALL  CanvasFont::createTextLayout( const rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed ) throw (uno::RuntimeException)
 105     {
 106         tools::LocalGuard aGuard;
 107
 108         if( !mpRefDevice.is() )
 109             return uno::Reference< rendering::XTextLayout >(); // we're disposed
 110
 111         return new TextLayout( aText,
 112                                nDirection,
 113                                nRandomSeed,
 114                                Reference( this ),
 115                                mpRefDevice,
 116                                mpOutDevProvider);
 117     }
 118
 119     rendering::FontRequest SAL_CALL  CanvasFont::getFontRequest(  ) throw (uno::RuntimeException)
 120     {
 121         tools::LocalGuard aGuard;
 122
 123         return maFontRequest;
 124     }
 125
 126     rendering::FontMetrics SAL_CALL  CanvasFont::getFontMetrics(  ) throw (uno::RuntimeException)
 127     {
 128         tools::LocalGuard aGuard;
 129
 130         // TODO(F1)
 131         return rendering::FontMetrics();
 132     }
 133
 134     uno::Sequence< double > SAL_CALL  CanvasFont::getAvailableSizes(  ) throw (uno::RuntimeException)
 135     {
 136         tools::LocalGuard aGuard;
 137
 138         // TODO(F1)
 139         return uno::Sequence< double >();
 140     }
 141
 142     uno::Sequence< beans::PropertyValue > SAL_CALL  CanvasFont::getExtraFontProperties(  ) throw (uno::RuntimeException)
 143     {
 144         tools::LocalGuard aGuard;
 145
 146         // TODO(F1)
 147         return uno::Sequence< beans::PropertyValue >();
 148     }
 149
 150 #define IMPLEMENTATION_NAME "VCLCanvas::CanvasFont"
 151 #define SERVICE_NAME "com.sun.star.rendering.CanvasFont"
 152
 153     ::rtl::OUString SAL_CALL CanvasFont::getImplementationName() throw( uno::RuntimeException )
 154     {
 155         return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) );
 156     }
 157
 158     sal_Bool SAL_CALL CanvasFont::supportsService( const ::rtl::OUString& ServiceName ) throw( uno::RuntimeException )
 159     {
 160         return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ) );
 161     }
 162
 163     uno::Sequence< ::rtl::OUString > SAL_CALL CanvasFont::getSupportedServiceNames()  throw( uno::RuntimeException )
 164     {
 165         uno::Sequence< ::rtl::OUString > aRet(1);
 166         aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );
 167
 168         return aRet;
 169     }
 170
 171     ::Font CanvasFont::getVCLFont() const
 172     {
 173         return *maFont;
 174     }
 175 }