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path: root/include/svx/sdr/contact/viewcontactofe3d.hxx
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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 .
 */

#ifndef INCLUDED_SVX_SDR_CONTACT_VIEWCONTACTOFE3D_HXX
#define INCLUDED_SVX_SDR_CONTACT_VIEWCONTACTOFE3D_HXX

#include <svx/sdr/contact/viewcontactofsdrobj.hxx>
#include <drawinglayer/primitive3d/baseprimitive3d.hxx>


// predeclarations

namespace sdr { namespace contact {
    class ViewContactOfE3dScene;
}}

namespace drawinglayer { namespace attribute {
    class SdrLineAttribute;
}}

namespace basegfx {
    class BColor;
    class B3DHomMatrix;
}

class E3dObject;



namespace sdr
{
    namespace contact
    {
        class ViewContactOfE3d : public ViewContactOfSdrObj
        {
        protected:
            // Create a Object-Specific ViewObjectContact, set ViewContact and
            // ObjectContact. Always needs to return something.
            virtual ViewObjectContact& CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact);

        public:
            // basic constructor, used from E3dObject.
            explicit ViewContactOfE3d(E3dObject& rObj);
            virtual ~ViewContactOfE3d();

            // access to E3dObject
            E3dObject& GetE3dObject() const
            {
                return (E3dObject&)GetSdrObject();
            }

            // public helpers
            drawinglayer::primitive2d::Primitive2DSequence impCreateWithGivenPrimitive3DSequence(
                const drawinglayer::primitive3d::Primitive3DSequence& rxContent3D) const;


            // primitive stuff

        protected:
            // Primitive3DSequence of the ViewContact. This contains all necessary information
            // for the graphical visualisation and needs to be supported by all 3D VCs which
            // can be visualized. It does NOT contain the object transformation to be able to
            // buffer for all possible usages
            drawinglayer::primitive3d::Primitive3DSequence              mxViewIndependentPrimitive3DSequence;

            // This method is responsible for creating the graphical visualisation data which is
            // stored in mxViewIndependentPrimitive3DSequence, but without object transformation
            virtual drawinglayer::primitive3d::Primitive3DSequence createViewIndependentPrimitive3DSequence() const = 0;

            // This method is responsible for creating the graphical visualisation data derived ONLY from
            // the model data. The default implementation will try to create a 3D to 2D embedding (will work
            // when scene is known) which can then be used for 2D processing concerning ranges
            virtual drawinglayer::primitive2d::Primitive2DSequence createViewIndependentPrimitive2DSequence() const;

        public:
            // access to the local primitive without the object's local 3D transform. This is e.g. needed
            // to get the not-yet transformed BoundVolume for e.g. interactions
            drawinglayer::primitive3d::Primitive3DSequence getVIP3DSWithoutObjectTransform() const;

            // access to the local primitive. This will ensure that the list is
            // current in comparing the local list content with a fresh created incarnation. It will
            // use getVIP3DSWithoutObjectTransform and embed to 3d transform primitive when object's
            // local 3d transform is used
            drawinglayer::primitive3d::Primitive3DSequence getViewIndependentPrimitive3DSequence() const;
        };
    } // end of namespace contact
} // end of namespace sdr



#endif // INCLUDED_SVX_SDR_CONTACT_VIEWCONTACTOFE3D_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */