include/drawinglayer/primitive2d/controlprimitive2d.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  19
  20 #pragma once
  21
  22 #include <drawinglayer/drawinglayerdllapi.h>
  23
  24 #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
  25 #include <basegfx/matrix/b2dhommatrix.hxx>
  26
  27 namespace com::sun::star::awt
  28 {
  29 class XControl;
  30 }
  31 namespace com::sun::star::awt
  32 {
  33 class XControlModel;
  34 }
  35
  36 namespace drawinglayer::primitive2d
  37 {
  38 /** ControlPrimitive2D class
  39
  40     Base class for ControlPrimitive handling. It decomposes to a
  41     graphical representation (Bitmap data) of the control. This
  42     representation is limited to a quadratic pixel maximum defined
  43     in the application settings.
  44  */
  45 class DRAWINGLAYER_DLLPUBLIC ControlPrimitive2D final : public BufferedDecompositionPrimitive2D
  46 {
  47 private:
  48     /// object's base data
  49     basegfx::B2DHomMatrix maTransform;
  50     css::uno::Reference<css::awt::XControlModel> mxControlModel;
  51
  52     /// the created and cached awt::XControl
  53     css::uno::Reference<css::awt::XControl> mxXControl;
  54
  55     /// the last used scaling, used from getDecomposition for buffering
  56     basegfx::B2DVector maLastViewScaling;
  57
  58     /** used from getXControl() to create a local awt::XControl which is remembered in mxXControl
  59                 and from thereon always used and returned by getXControl()
  60              */
  61     void createXControl();
  62
  63     /// single local decompositions, used from create2DDecomposition()
  64     Primitive2DReference
  65     createBitmapDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
  66     Primitive2DReference createPlaceholderDecomposition() const;
  67
  68     /// local decomposition
  69     virtual void
  70     create2DDecomposition(Primitive2DContainer& rContainer,
  71                           const geometry::ViewInformation2D& rViewInformation) const override;
  72
  73 public:
  74     /// constructor
  75     ControlPrimitive2D(const basegfx::B2DHomMatrix& rTransform,
  76                        const css::uno::Reference<css::awt::XControlModel>& rxControlModel);
  77
  78     /** constructor with an additional XControl as parameter to allow to hand it over at incarnation time
  79         if it exists. This will avoid to create a 2nd one on demand in createXControl()
  80         and thus double the XControls.
  81      */
  82     ControlPrimitive2D(const basegfx::B2DHomMatrix& rTransform,
  83                        const css::uno::Reference<css::awt::XControlModel>& rxControlModel,
  84                        const css::uno::Reference<css::awt::XControl>& rxXControl);
  85
  86     /// data read access
  87     const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
  88     const css::uno::Reference<css::awt::XControlModel>& getControlModel() const
  89     {
  90         return mxControlModel;
  91     }
  92
  93     /** mxControl access. This will on demand create the awt::XControl using createXControl()
  94         if it does not exist. It may already have been created or even handed over at
  95         incarnation
  96      */
  97     const css::uno::Reference<css::awt::XControl>& getXControl() const;
  98
  99     /// compare operator
 100     virtual bool operator==(const BasePrimitive2D& rPrimitive) const override;
 101
 102     /// get range
 103     virtual basegfx::B2DRange
 104     getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
 105
 106     /// provide unique ID
 107     virtual sal_uInt32 getPrimitive2DID() const override;
 108
 109     /// Override standard getDecomposition to be view-dependent here
 110     virtual void
 111     get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor,
 112                        const geometry::ViewInformation2D& rViewInformation) const override;
 113 };
 114
 115 } // end of namespace drawinglayer::primitive2d
 116
 117 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */