/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: hittestprimitive3d.hxx,v $
 *
 *  $Revision: 1.1.2.1 $
 *
 *  last change: $Author: aw $ $Date: 2008/09/24 14:27:39 $
 *
 *  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_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX
#define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX

#include <drawinglayer/primitive2d/groupprimitive2d.hxx>

//////////////////////////////////////////////////////////////////////////////

namespace drawinglayer
{
	namespace 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 primtive when there is no 
        // line geometry. In a further enchanced 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 it's children subcontent.
		class HiddenGeometryPrimitive2D : public GroupPrimitive2D
		{
		public:
			HiddenGeometryPrimitive2D(const Primitive2DSequence& 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::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;

			/// local decomposition. Implementation will return empty Primitive2DSequence
			virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;

			// provide unique ID
			DeclPrimitrive2DIDBlock()
		};
	} // end of namespace primitive2d
} // end of namespace drawinglayer

//////////////////////////////////////////////////////////////////////////////

#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_HIDDENGEOMETRYPRIMITIVE2D_HXX

//////////////////////////////////////////////////////////////////////////////
// eof
