LibreOffice Module canvas (master)  1
cairo_canvascustomsprite.cxx
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19 
20 #include <sal/config.h>
21 #include <sal/log.hxx>
22 
25 #include <tools/diagnose_ex.h>
26 
27 #include <canvas/canvastools.hxx>
28 #include <cairo.h>
29 
31 #include "cairo_spritecanvas.hxx"
32 
33 
34 using namespace ::cairo;
35 using namespace ::com::sun::star;
36 
37 namespace cairocanvas
38 {
39  CanvasCustomSprite::CanvasCustomSprite( const css::geometry::RealSize2D& rSpriteSize,
40  const SpriteCanvasRef& rRefDevice ) :
41  mpSpriteCanvas( rRefDevice ),
42  maSize( ::canvas::tools::roundUp( rSpriteSize.Width ),
43  ::canvas::tools::roundUp( rSpriteSize.Height ) )
44  {
45  ENSURE_OR_THROW( rRefDevice,
46  "CanvasCustomSprite::CanvasCustomSprite(): Invalid sprite canvas" );
47 
48  SAL_INFO( "canvas.cairo", "sprite size: " << ::canvas::tools::roundUp( rSpriteSize.Width ) << ", " << ::canvas::tools::roundUp( rSpriteSize.Height ));
49 
50  mpBufferSurface = mpSpriteCanvas->createSurface( maSize, CAIRO_CONTENT_COLOR_ALPHA );
51 
52  maCanvasHelper.init( maSize,
53  *rRefDevice,
54  rRefDevice.get() );
55  maCanvasHelper.setSurface( mpBufferSurface, true );
56 
57  maSpriteHelper.init( rSpriteSize,
58  rRefDevice );
59  maSpriteHelper.setSurface( mpBufferSurface );
60 
61  // clear sprite to 100% transparent
62  maCanvasHelper.clear();
63  }
64 
66  {
67  ::osl::MutexGuard aGuard( m_aMutex );
68 
69  mpSpriteCanvas.clear();
70  mpBufferSurface.reset();
71 
72  // forward to parent
74  }
75 
76  void CanvasCustomSprite::redraw( const CairoSharedPtr& pCairo,
77  bool bBufferedUpdate ) const
78  {
79  ::osl::MutexGuard aGuard( m_aMutex );
80 
81  redraw( pCairo, maSpriteHelper.getPosPixel(), bBufferedUpdate );
82  }
83 
84  void CanvasCustomSprite::redraw( const CairoSharedPtr& pCairo,
85  const ::basegfx::B2DPoint& rOrigOutputPos,
86  bool bBufferedUpdate ) const
87  {
88  ::osl::MutexGuard aGuard( m_aMutex );
89 
90  maSpriteHelper.redraw( pCairo,
91  rOrigOutputPos,
93  bBufferedUpdate );
94 
95  mbSurfaceDirty = false;
96  }
97 
98  bool CanvasCustomSprite::repaint( const SurfaceSharedPtr& pSurface,
99  const rendering::ViewState& viewState,
100  const rendering::RenderState& renderState )
101  {
102  return maCanvasHelper.repaint( pSurface, viewState, renderState );
103  }
104 
106  {
107  return mpBufferSurface;
108  }
109 
110  SurfaceSharedPtr CanvasCustomSprite::createSurface( const ::basegfx::B2ISize& rSize, int aContent )
111  {
112  return mpSpriteCanvas->createSurface(rSize,aContent);
113  }
114 
116  {
117  return mpSpriteCanvas->createSurface(rBitmap);
118  }
119 
121  {
122  SAL_INFO( "canvas.cairo", "replacing sprite background surface");
123 
124  mpBufferSurface = mpSpriteCanvas->createSurface( maSize, CAIRO_CONTENT_COLOR );
125  maSpriteHelper.setSurface( mpBufferSurface );
126 
127  return mpBufferSurface;
128  }
129 
131  {
132  return mpSpriteCanvas->getOutputDevice();
133  }
134 
136  {
137  return "CairoCanvas.CanvasCustomSprite";
138  }
139 
140  sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const OUString& ServiceName )
141  {
142  return cppu::supportsService( this, ServiceName );
143  }
144 
145  uno::Sequence< OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames()
146  {
147  return { "com.sun.star.rendering.CanvasCustomSprite" };
148  }
149 }
150 
151 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
SpriteCanvasRef mpSpriteCanvas
MUST hold here, too, since CanvasHelper only contains a raw pointer (without refcounting) ...
osl::Mutex m_aMutex
CanvasCustomSprite(const css::geometry::RealSize2D &rSpriteSize, const SpriteCanvasRef &rRefDevice)
Create a custom sprite.
const cppcanvas::SpriteCanvasSharedPtr mpSpriteCanvas
virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override
std::shared_ptr< cairo_t > CairoSharedPtr
virtual sal_Bool SAL_CALL supportsService(const OUString &ServiceName) override
virtual void disposeThis() override
Object is being disposed.
bool CPPUHELPER_DLLPUBLIC supportsService(css::lang::XServiceInfo *implementation, rtl::OUString const &name)
std::shared_ptr< Surface > SurfaceSharedPtr
virtual OutputDevice * getOutputDevice() override
T roundUp(T input, T multiple)
unsigned char sal_Bool
virtual OUString SAL_CALL getImplementationName() override
CanvasHelper maCanvasHelper
Definition: canvasbase.hxx:442
virtual void disposeThis() override
Object is being disposed.
#define ENSURE_OR_THROW(c, m)
sal_Int32 roundUp(const double &rVal)
Round given floating point value up to next integer.
virtual bool repaint(const ::cairo::SurfaceSharedPtr &pSurface, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState) override
#define SAL_INFO(area, stream)
virtual ::cairo::SurfaceSharedPtr changeSurface() override
virtual ::cairo::SurfaceSharedPtr createSurface(const ::basegfx::B2ISize &rSize, int aContent) override
virtual void redraw(const ::cairo::CairoSharedPtr &pCairo, bool bBufferedUpdate) const override
virtual ::cairo::SurfaceSharedPtr getSurface() override
::basegfx::B2IVector maSize
Definition: dx_9rm.cxx:116