66 lines
3.1 KiB
C++
66 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE3D_HIDDENGEOMETRYPRIMITIVE3D_HXX
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#define INCLUDED_DRAWINGLAYER_PRIMITIVE3D_HIDDENGEOMETRYPRIMITIVE3D_HXX
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#include <drawinglayer/drawinglayerdllapi.h>
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#include <drawinglayer/primitive3d/groupprimitive3d.hxx>
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//////////////////////////////////////////////////////////////////////////////
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namespace drawinglayer
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{
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namespace primitive3d
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{
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// This primitive is used to represent geometry for non-visible objects,
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// e.g. a 3D cube without fill attributes. To still be able to use
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// primitives for HitTest functionality, the 3d decompositions produce
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// an as much as possible simplified fill geometry encapsulated in this
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// primtive when there is no fill geometry. Currently, the 3d hit test
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// uses only areas, so maybe in a further enchanced version this will change
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// to 'if neither filled nor lines' creation criteria. The whole primitive
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// decomposes to nothing, so no one not knowing it will be influenced. Only
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// helper processors for hit test (and maybe BoundRect extractors) will
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// use it and it's children subcontent.
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class DRAWINGLAYER_DLLPUBLIC HiddenGeometryPrimitive3D : public GroupPrimitive3D
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{
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public:
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explicit HiddenGeometryPrimitive3D(const Primitive3DSequence& rChildren);
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// despite returning an empty decomposition since it's no visualisation data,
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// range calculation is intended to use hidden geometry, so
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// the local implementation will return the children's range
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virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
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/// The default implementation returns an empty sequence
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virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
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// provide unique ID
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DeclPrimitive3DIDBlock()
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};
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} // end of namespace primitive3d
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} // end of namespace drawinglayer
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//////////////////////////////////////////////////////////////////////////////
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#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE3D_HIDDENGEOMETRYPRIMITIVE3D_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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