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27 
28 #ifndef SD_PRESENTER_SLIDE_PREVIEW_HXX
29 #define SD_PRESENTER_SLIDE_PREVIEW_HXX
30 
31 #include "PreviewRenderer.hxx"
32 #include <com/sun/star/drawing/XDrawPage.hpp>
33 #include <com/sun/star/drawing/XSlideRenderer.hpp>
34 #include <com/sun/star/lang/XInitialization.hpp>
35 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
36 #include <cppuhelper/basemutex.hxx>
37 #include <cppuhelper/compbase2.hxx>
38 #include <boost/noncopyable.hpp>
39 
40 namespace css = ::com::sun::star;
41 
42 namespace sd { namespace presenter {
43 
44 namespace {
45     typedef ::cppu::WeakComponentImplHelper2 <
46         css::drawing::XSlideRenderer,
47         css::lang::XInitialization
48     > SlideRendererInterfaceBase;
49 }
50 
51 
52 /** Render single slides into bitmaps.
53 */
54 class SlideRenderer
55     : private ::boost::noncopyable,
56       protected ::cppu::BaseMutex,
57       public SlideRendererInterfaceBase
58 {
59 public:
60     explicit SlideRenderer (const css::uno::Reference<css::uno::XComponentContext>& rxContext);
61     virtual ~SlideRenderer (void);
62     virtual void SAL_CALL disposing (void);
63 
64 
65     // XInitialization
66 
67     virtual void SAL_CALL initialize (const css::uno::Sequence<css::uno::Any>& rArguments)
68         throw (css::uno::Exception, css::uno::RuntimeException);
69 
70 
71     // XSlideRenderer
72 
73     virtual css::uno::Reference<css::awt::XBitmap> SAL_CALL createPreview (
74         const ::css::uno::Reference<css::drawing::XDrawPage>& rxSlide,
75         const css::awt::Size& rMaximumPreviewPixelSize,
76         sal_Int16 nSuperSampleFactor)
77         throw (css::uno::RuntimeException);
78 
79     virtual css::uno::Reference<css::rendering::XBitmap> SAL_CALL createPreviewForCanvas (
80         const ::css::uno::Reference<css::drawing::XDrawPage>& rxSlide,
81         const css::awt::Size& rMaximumPreviewPixelSize,
82         sal_Int16 nSuperSampleFactor,
83         const ::css::uno::Reference<css::rendering::XCanvas>& rxCanvas)
84         throw (css::uno::RuntimeException);
85 
86     virtual css::awt::Size SAL_CALL calculatePreviewSize (
87         double nSlideAspectRatio,
88         const css::awt::Size& rMaximumPreviewPixelSize)
89         throw (css::uno::RuntimeException);
90 
91 private:
92     PreviewRenderer maPreviewRenderer;
93 
94     BitmapEx CreatePreview (
95         const ::css::uno::Reference<css::drawing::XDrawPage>& rxSlide,
96         const css::awt::Size& rMaximumPreviewPixelSize,
97         sal_Int16 nSuperSampleFactor)
98         throw (css::uno::RuntimeException);
99 
100     /** This method throws a DisposedException when the object has already been
101         disposed.
102     */
103     void ThrowIfDisposed (void) throw (css::lang::DisposedException);
104 };
105 
106 } } // end of namespace ::sd::presenter
107 
108 #endif
109