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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#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 it's 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;
/// The default implementation returns an empty sequence
virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
// provide unique ID
DeclPrimitrive3DIDBlock()
};
} // end of namespace primitive3d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE3D_HIDDENGEOMETRYPRIMITIVE3D_HXX
//////////////////////////////////////////////////////////////////////////////
// eof
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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