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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <drawinglayer/primitive3d/groupprimitive3d.hxx>
namespace drawinglayer::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
// primitive when there is no fill geometry. Currently, the 3d hit test
// uses only areas, so maybe in a further enhanced 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 HiddenGeometryPrimitive3D final : public GroupPrimitive3D
{
public:
explicit HiddenGeometryPrimitive3D(const Primitive3DContainer& 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 override;
/// The default implementation returns an empty sequence
virtual Primitive3DContainer get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const override;
// provide unique ID
DeclPrimitive3DIDBlock()
};
} // end of namespace drawinglayer::primitive3d
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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