cppcanvas/source/wrapper/implspritecanvas.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
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  15  *   License, Version 2.0 (the "License"); you may not use this file
  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 #pragma once
  21
  22 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
  23 #include <basegfx/vector/b2dsize.hxx>
  24 #include <basegfx/matrix/b2dhommatrix.hxx>
  25 #include <cppcanvas/spritecanvas.hxx>
  26 #include "implcanvas.hxx"
  27
  28 namespace cppcanvas::internal
  29 {
  30         class ImplSpriteCanvas : public virtual SpriteCanvas, protected virtual ImplCanvas
  31         {
  32         public:
  33             ImplSpriteCanvas( const css::uno::Reference<
  34                                   css::rendering::XSpriteCanvas >& rCanvas );
  35             ImplSpriteCanvas(const ImplSpriteCanvas&);
  36
  37             virtual ~ImplSpriteCanvas() override;
  38
  39             virtual void                    setTransformation( const ::basegfx::B2DHomMatrix& rMatrix ) override;
  40
  41             virtual bool                    updateScreen( bool bUpdateAll ) const override;
  42
  43             virtual CustomSpriteSharedPtr   createCustomSprite( const ::basegfx::B2DSize& ) const override;
  44
  45             virtual CanvasSharedPtr         clone() const override;
  46
  47             virtual css::uno::Reference<
  48                 css::rendering::XSpriteCanvas >    getUNOSpriteCanvas() const override;
  49
  50             /** This class passes the view transformation
  51                 to child sprites
  52
  53                 This helper class is necessary, because the
  54                 ImplSpriteCanvas object cannot hand out shared ptrs of
  55                 itself, but has somehow pass an object to child
  56                 sprites those can query for the canvas' view transform.
  57              */
  58             class TransformationArbiter
  59             {
  60             public:
  61                 TransformationArbiter();
  62
  63                 void                        setTransformation( const ::basegfx::B2DHomMatrix& rViewTransform );
  64                 const ::basegfx::B2DHomMatrix& getTransformation() const {  return maTransformation; }
  65
  66             private:
  67                 ::basegfx::B2DHomMatrix     maTransformation;
  68             };
  69
  70             typedef std::shared_ptr< TransformationArbiter > TransformationArbiterSharedPtr;
  71
  72         private:
  73             ImplSpriteCanvas& operator=( const ImplSpriteCanvas& ) = delete;
  74
  75             const css::uno::Reference< css::rendering::XSpriteCanvas > mxSpriteCanvas;
  76             TransformationArbiterSharedPtr                             mpTransformArbiter;
  77         };
  78 }
  79
  80 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */