office-gobmx/include/drawinglayer/primitive3d/hiddengeometryprimitive3d.hxx
Tor Lillqvist 6835d9f307 It's "its", not "it's"
Change-Id: Ieaa787afd7cc622b4750a2ee8f17f6dad934ba63
2014-04-10 20:22:50 +03:00

66 lines
3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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* This file incorporates work covered by the following license notice:
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* Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE3D_HIDDENGEOMETRYPRIMITIVE3D_HXX
#define INCLUDED_DRAWINGLAYER_PRIMITIVE3D_HIDDENGEOMETRYPRIMITIVE3D_HXX
#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive3d/groupprimitive3d.hxx>
namespace drawinglayer
{
namespace primitive3d
{
// This primitive is used to represent geometry for non-visible objects,
// e.g. a 3D cube without fill attributes. To still be able to use
// primitives for HitTest functionality, the 3d decompositions produce
// an as much as possible simplified fill geometry encapsulated in this
// primtive when there is no fill geometry. Currently, the 3d hit test
// uses only areas, so maybe in a further enchanced version this will change
// to 'if neither filled nor lines' creation criteria. The whole primitive
// decomposes to nothing, so no one not knowing it will be influenced. Only
// helper processors for hit test (and maybe BoundRect extractors) will
// use it and its children subcontent.
class DRAWINGLAYER_DLLPUBLIC HiddenGeometryPrimitive3D : public GroupPrimitive3D
{
public:
explicit HiddenGeometryPrimitive3D(const Primitive3DSequence& rChildren);
// despite returning an empty decomposition since it's no visualisation data,
// range calculation is intended to use hidden geometry, so
// the local implementation will return the children's range
virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const SAL_OVERRIDE;
/// The default implementation returns an empty sequence
virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const SAL_OVERRIDE;
// provide unique ID
DeclPrimitive3DIDBlock()
};
} // end of namespace primitive3d
} // end of namespace drawinglayer
#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE3D_HIDDENGEOMETRYPRIMITIVE3D_HXX
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