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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_sd.hxx"
26 
27 #include "view/SlsFontProvider.hxx"
28 
29 #include "controller/SlideSorterController.hxx"
30 
31 #include <sfx2/app.hxx>
32 #include <com/sun/star/uno/RuntimeException.hpp>
33 
34 
35 using namespace ::sd::slidesorter;
36 
37 namespace sd { namespace slidesorter { namespace view {
38 
39 FontProvider* FontProvider::mpInstance = NULL;
40 
Instance(void)41 FontProvider& FontProvider::Instance (void)
42 {
43     if (mpInstance == NULL)
44     {
45         ::osl::GetGlobalMutex aMutexFunctor;
46         ::osl::MutexGuard aGuard (aMutexFunctor());
47         if (mpInstance == NULL)
48         {
49             // Create an instance of the class and register it at the
50             // SdGlobalResourceContainer so that it is eventually released.
51             FontProvider* pInstance = new FontProvider();
52             SdGlobalResourceContainer::Instance().AddResource (
53                 ::std::auto_ptr<SdGlobalResource>(pInstance));
54             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
55             mpInstance = pInstance;
56         }
57     }
58     else
59     {
60         OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
61     }
62 
63     // We throw an exception when for some strange reason no instance of
64     // this class exists.
65     if (mpInstance == NULL)
66         throw ::com::sun::star::uno::RuntimeException(::rtl::OUString(
67             RTL_CONSTASCII_USTRINGPARAM("com.sun.star.document.IndexedPropertyValues")),
68             NULL);
69 
70     return *mpInstance;
71 }
72 
73 
74 
75 
FontProvider(void)76 FontProvider::FontProvider (void)
77     : maFont(),
78       maMapMode()
79 {
80 }
81 
82 
83 
84 
~FontProvider(void)85 FontProvider::~FontProvider (void)
86 {
87 }
88 
89 
90 
91 
Invalidate(void)92 void FontProvider::Invalidate (void)
93 {
94     maFont.reset();
95 }
96 
97 
98 
99 
GetFont(const OutputDevice & rDevice)100 FontProvider::SharedFontPointer FontProvider::GetFont (const OutputDevice& rDevice)
101 {
102     // Reset the font when the map mode has changed since its creation.
103     if (maMapMode != rDevice.GetMapMode())
104         maFont.reset();
105 
106     if (maFont.get() == NULL)
107     {
108         // Initialize the font from the application style settings.
109         maFont.reset(new Font (Application::GetSettings().GetStyleSettings().GetAppFont()));
110         maFont->SetTransparent(sal_True);
111         maFont->SetWeight(WEIGHT_NORMAL);
112 
113         // Transform the point size to pixel size.
114         MapMode aFontMapMode (MAP_POINT);
115         Size aFontSize (rDevice.LogicToPixel(maFont->GetSize(), aFontMapMode));
116 
117         // Transform the font size to the logical coordinates of the device.
118         maFont->SetSize (rDevice.PixelToLogic(aFontSize));
119 
120         // Remember the map mode of the given device to detect different
121         // devices or modified zoom scales on future calls.
122         maMapMode = rDevice.GetMapMode();
123     }
124 
125     return maFont;
126 }
127 
128 } } }  // end of namespace ::sd::slidesorter::view
129