sd/source/ui/slidesorter/view/SlsFontProvider.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_sd.hxx"
  33
  34 #include "view/SlsFontProvider.hxx"
  35
  36 #include "controller/SlideSorterController.hxx"
  37
  38 #include <sfx2/app.hxx>
  39 #include <com/sun/star/uno/RuntimeException.hpp>
  40
  41
  42 using namespace ::sd::slidesorter;
  43
  44 namespace sd { namespace slidesorter { namespace view {
  45
  46 FontProvider* FontProvider::mpInstance = NULL;
  47
  48 FontProvider& FontProvider::Instance (void)
  49 {
  50     if (mpInstance == NULL)
  51     {
  52         ::osl::GetGlobalMutex aMutexFunctor;
  53         ::osl::MutexGuard aGuard (aMutexFunctor());
  54         if (mpInstance == NULL)
  55         {
  56             // Create an instance of the class and register it at the
  57             // SdGlobalResourceContainer so that it is eventually released.
  58             FontProvider* pInstance = new FontProvider();
  59             SdGlobalResourceContainer::Instance().AddResource (
  60                 ::std::auto_ptr<SdGlobalResource>(pInstance));
  61             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
  62             mpInstance = pInstance;
  63         }
  64     }
  65     else
  66     {
  67         OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
  68     }
  69
  70     // We throw an exception when for some strange reason no instance of
  71     // this class exists.
  72     if (mpInstance == NULL)
  73         throw ::com::sun::star::uno::RuntimeException(::rtl::OUString(
  74             RTL_CONSTASCII_USTRINGPARAM("com.sun.star.document.IndexedPropertyValues")),
  75             NULL);
  76
  77     return *mpInstance;
  78 }
  79
  80
  81
  82
  83 FontProvider::FontProvider (void)
  84     : maFont(),
  85       maMapMode()
  86 {
  87 }
  88
  89
  90
  91
  92 FontProvider::~FontProvider (void)
  93 {
  94 }
  95
  96
  97
  98
  99 void FontProvider::Invalidate (void)
 100 {
 101     maFont.reset();
 102 }
 103
 104
 105
 106
 107 FontProvider::SharedFontPointer FontProvider::GetFont (const OutputDevice& rDevice)
 108 {
 109     // Reset the font when the map mode has changed since its creation.
 110     if (maMapMode != rDevice.GetMapMode())
 111         maFont.reset();
 112
 113     if (maFont.get() == NULL)
 114     {
 115         // Initialize the font from the application style settings.
 116         maFont.reset(new Font (Application::GetSettings().GetStyleSettings().GetAppFont()));
 117         maFont->SetTransparent(TRUE);
 118         maFont->SetWeight(WEIGHT_NORMAL);
 119
 120         // Transform the point size to pixel size.
 121         MapMode aFontMapMode (MAP_POINT);
 122         Size aFontSize (rDevice.LogicToPixel(maFont->GetSize(), aFontMapMode));
 123
 124         // Transform the font size to the logical coordinates of the device.
 125         maFont->SetSize (rDevice.PixelToLogic(aFontSize));
 126
 127         // Remember the map mode of the given device to detect different
 128         // devices or modified zoom scales on future calls.
 129         maMapMode = rDevice.GetMapMode();
 130     }
 131
 132     return maFont;
 133 }
 134
 135 } } }  // end of namespace ::sd::slidesorter::view