office-gobmx/include/drawinglayer/primitive2d/hiddengeometryprimitive2d.hxx
Noel Grandin 8104d771b1 tdf#144052 reduce Primitive2D copying
when creating charts, by using a
    Primitive2DContainer&&
parameter in the GroupPrimitive2D constructor, which forces the call
sites to pass a temporary, and at most call sites, we can std::move in
an existing local variable.

Change-Id: I531970918800c6832ab606b5a4ff5fd2d47ccf5b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/121844
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2021-09-09 15:22:52 +02:00

56 lines
2.7 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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#pragma once
#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/groupprimitive2d.hxx>
namespace drawinglayer::primitive2d
{
// This primitive is used to represent geometry for non-visible objects,
// e.g. a PresObj's outline. To still be able to use primitives for HitTest
// functionality, the 2d decompositions will produce an as much as possible
// simplified line geometry encapsulated in this primitive when there is no
// line geometry. In a further enhanced version this may 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 HiddenGeometryPrimitive2D final : public GroupPrimitive2D
{
public:
explicit HiddenGeometryPrimitive2D(Primitive2DContainer&& aChildren);
// 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::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
/// local decomposition. Implementation will return empty Primitive2DSequence
virtual void get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const override;
// provide unique ID
virtual sal_uInt32 getPrimitive2DID() const override;
};
} // end of namespace drawinglayer::primitive2d
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */