LibreOffice Module canvas (master)  1
cachedprimitivebase.cxx
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19 
20 #include <sal/config.h>
21 
24 #include <com/sun/star/rendering/RepaintResult.hpp>
26 
28 
29 
30 using namespace ::com::sun::star;
31 
32 namespace canvas
33 {
34  CachedPrimitiveBase::CachedPrimitiveBase( const rendering::ViewState& rUsedViewState,
35  const uno::Reference< rendering::XCanvas >& rTarget ) :
37  maUsedViewState( rUsedViewState ),
38  mxTarget( rTarget )
39  {
40  }
41 
42  CachedPrimitiveBase::~CachedPrimitiveBase()
43  {
44  }
45 
46  void SAL_CALL CachedPrimitiveBase::disposing()
47  {
48  ::osl::MutexGuard aGuard( m_aMutex );
49 
50  maUsedViewState.Clip.clear();
51  mxTarget.clear();
52  }
53 
54  sal_Int8 SAL_CALL CachedPrimitiveBase::redraw( const rendering::ViewState& aState )
55  {
56  ::basegfx::B2DHomMatrix aUsedTransformation;
57  ::basegfx::B2DHomMatrix aNewTransformation;
58 
59  ::basegfx::unotools::homMatrixFromAffineMatrix( aUsedTransformation,
60  maUsedViewState.AffineTransform );
61  ::basegfx::unotools::homMatrixFromAffineMatrix( aNewTransformation,
62  aState.AffineTransform );
63 
64  const bool bSameViewTransforms( aUsedTransformation == aNewTransformation );
65 
66  if( !bSameViewTransforms )
67  {
68  // differing transformations, don't try to draft the
69  // output, just plain fail here.
70  return rendering::RepaintResult::FAILED;
71  }
72 
73  return doRedraw( aState,
74  maUsedViewState,
75  mxTarget,
76  bSameViewTransforms );
77  }
78 
79  OUString SAL_CALL CachedPrimitiveBase::getImplementationName( )
80  {
81  return "canvas::CachedPrimitiveBase";
82  }
83 
84  sal_Bool SAL_CALL CachedPrimitiveBase::supportsService( const OUString& ServiceName )
85  {
86  return cppu::supportsService(this, ServiceName);
87  }
88 
89  uno::Sequence< OUString > SAL_CALL CachedPrimitiveBase::getSupportedServiceNames( )
90  {
91  return { "com.sun.star.rendering.CachedBitmap" };
92  }
93 }
94 
95 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
osl::Mutex m_aMutex
signed char sal_Int8
CachedPrimitiveBase(const css::rendering::ViewState &rUsedViewState, const css::uno::Reference< css::rendering::XCanvas > &rTarget)
Create an XCachedPrimitive for given target canvas.
bool CPPUHELPER_DLLPUBLIC supportsService(css::lang::XServiceInfo *implementation, rtl::OUString const &name)
unsigned char sal_Bool
cppu::WeakComponentImplHelper< css::rendering::XCachedPrimitive, css::lang::XServiceInfo > CachedPrimitiveBase_Base