slideshow/source/engine/shapes/viewbackgroundshape.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
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  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_SHAPES_VIEWBACKGROUNDSHAPE_HXX
  21 #define INCLUDED_SLIDESHOW_SOURCE_ENGINE_SHAPES_VIEWBACKGROUNDSHAPE_HXX
  22
  23 #include <com/sun/star/uno/Reference.hxx>
  24 #include <com/sun/star/rendering/XBitmap.hpp>
  25
  26 #include <basegfx/range/b2drectangle.hxx>
  27 #include <basegfx/matrix/b2dhommatrix.hxx>
  28 #include <cppcanvas/spritecanvas.hxx>
  29
  30 #include <memory>
  31
  32 #include "gdimtftools.hxx"
  33 #include <viewlayer.hxx>
  34
  35
  36 namespace slideshow
  37 {
  38     namespace internal
  39     {
  40         /** This class is the viewable representation of a draw
  41             document's background, associated to a specific View
  42
  43             The class is able to render the associated background on
  44             View implementations.
  45          */
  46         class ViewBackgroundShape
  47         {
  48         public:
  49             /** Create a ViewBackgroundShape for the given View
  50
  51                 @param rView
  52                 The associated View object.
  53
  54                 @param rShapeBounds
  55                 Bounds of the background shape, in document coordinate
  56                 system.
  57              */
  58             ViewBackgroundShape( const ViewLayerSharedPtr&      rViewLayer,
  59                                  const ::basegfx::B2DRectangle& rShapeBounds );
  60             /// Forbid copy construction
  61             ViewBackgroundShape(const ViewBackgroundShape&) = delete;
  62             /// Forbid copy assignment
  63             ViewBackgroundShape& operator=(const ViewBackgroundShape&) = delete;
  64
  65             /** Query the associated view layer of this shape
  66              */
  67             const ViewLayerSharedPtr& getViewLayer() const;
  68
  69             bool render( const GDIMetaFileSharedPtr& rMtf ) const;
  70
  71         private:
  72             /** Prefetch bitmap for given canvas
  73              */
  74             bool prefetch( const ::cppcanvas::CanvasSharedPtr&  rDestinationCanvas,
  75                            const GDIMetaFileSharedPtr&          rMtf ) const;
  76
  77             /** The view layer this object is part of.
  78              */
  79             ViewLayerSharedPtr                                  mpViewLayer;
  80
  81             /// Generated content bitmap, already with correct output size
  82             mutable css::uno::Reference< css::rendering::XBitmap >  mxBitmap;
  83
  84             /// The last metafile a render object was generated for
  85             mutable GDIMetaFileSharedPtr                        mpLastMtf;
  86
  87             /// The canvas, mpRenderer is associated with
  88             mutable ::basegfx::B2DHomMatrix                     maLastTransformation;
  89
  90             const ::basegfx::B2DRectangle                       maBounds;
  91         };
  92
  93         typedef ::std::shared_ptr< ViewBackgroundShape > ViewBackgroundShapeSharedPtr;
  94
  95     }
  96 }
  97
  98 #endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_SHAPES_VIEWBACKGROUNDSHAPE_HXX
  99
 100 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */