/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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 * 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

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#include <com/sun/star/drawing/NormalsKind.hpp>

#include <drawinglayer/primitive3d/sdrsphereprimitive3d.hxx>

#include <basegfx/polygon/b3dpolypolygontools.hxx>

#include <basegfx/range/b3drange.hxx>

#include <basegfx/matrix/b2dhommatrix.hxx>

#include <primitive3d/sdrdecompositiontools3d.hxx>

#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>

#include <drawinglayer/attribute/sdrfillattribute.hxx>

#include <drawinglayer/attribute/sdrlineattribute.hxx>

#include <drawinglayer/attribute/sdrshadowattribute.hxx>

using namespace com::sun::star;

namespace drawinglayer::primitive3d

{

        Primitive3DContainer SdrSpherePrimitive3D::create3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const

        {

            Primitive3DContainer aRetval;

            const basegfx::B3DRange aUnitRange(0.0, 0.0, 0.0, 1.0, 1.0, 1.0);

            const bool bCreateNormals(css::drawing::NormalsKind_SPECIFIC == getSdr3DObjectAttribute().getNormalsKind()

                || css::drawing::NormalsKind_SPHERE == getSdr3DObjectAttribute().getNormalsKind());

            // create unit geometry

            basegfx::B3DPolyPolygon aFill(basegfx::utils::createSphereFillPolyPolygonFromB3DRange(aUnitRange,

                getHorizontalSegments(), getVerticalSegments(), bCreateNormals));

            // normal inversion

            if(!getSdrLFSAttribute().getFill().isDefault()

                && bCreateNormals

                && getSdr3DObjectAttribute().getNormalsInvert()

                && aFill.areNormalsUsed())

            {

                // invert normals

                aFill = basegfx::utils::invertNormals(aFill);

            }

            // texture coordinates

            if(!getSdrLFSAttribute().getFill().isDefault())

            {

                // handle texture coordinates X

                const bool bParallelX(css::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionX());

                const bool bObjectSpecificX(css::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionX());

                const bool bSphereX(css::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionX());

                // handle texture coordinates Y

                const bool bParallelY(css::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionY());

                const bool bObjectSpecificY(css::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionY());

                const bool bSphereY(css::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionY());

                if(bParallelX || bParallelY)

                {

                    // apply parallel texture coordinates in X and/or Y

                    const basegfx::B3DRange aRange(basegfx::utils::getRange(aFill));

                    aFill = basegfx::utils::applyDefaultTextureCoordinatesParallel(aFill, aRange, bParallelX, bParallelY);

                }

                if(bSphereX || bObjectSpecificX || bSphereY || bObjectSpecificY)

                {

                    double fRelativeAngle(0.0);

                    if(bObjectSpecificX)

                    {

                        // Since the texture coordinates are (for historical reasons)

                        // different from forced to sphere texture coordinates,

                        // create a old version from it by rotating to old state before applying

                        // the texture coordinates to emulate old behaviour

                        fRelativeAngle = 2 * M_PI * (static_cast<double>((getHorizontalSegments() >> 1)  - 1) / static_cast<double>(getHorizontalSegments()));

                        basegfx::B3DHomMatrix aRot;

                        aRot.rotate(0.0, fRelativeAngle, 0.0);

                        aFill.transform(aRot);

                    }

                    // apply spherical texture coordinates in X and/or Y

                    const basegfx::B3DRange aRange(basegfx::utils::getRange(aFill));

                    const basegfx::B3DPoint aCenter(aRange.getCenter());

                    aFill = basegfx::utils::applyDefaultTextureCoordinatesSphere(aFill, aCenter,

                        bSphereX || bObjectSpecificX, bSphereY || bObjectSpecificY);

                    if(bObjectSpecificX)

                    {

                        // rotate back again

                        basegfx::B3DHomMatrix aRot;

                        aRot.rotate(0.0, -fRelativeAngle, 0.0);

                        aFill.transform(aRot);

                    }

                }

                // transform texture coordinates to texture size

                basegfx::B2DHomMatrix aTexMatrix;

                aTexMatrix.scale(getTextureSize().getX(), getTextureSize().getY());

                aFill.transformTextureCoordinates(aTexMatrix);

            }

            // build vector of PolyPolygons

            std::vector< basegfx::B3DPolyPolygon > a3DPolyPolygonVector;

            for(sal_uInt32 a(0); a < aFill.count(); a++)

            {

                a3DPolyPolygonVector.emplace_back(aFill.getB3DPolygon(a));

            }

            if(!getSdrLFSAttribute().getFill().isDefault())

            {

                // add fill

                aRetval = create3DPolyPolygonFillPrimitives(

                    a3DPolyPolygonVector,

                    getTransform(),

                    getTextureSize(),

                    getSdr3DObjectAttribute(),

                    getSdrLFSAttribute().getFill(),

                    getSdrLFSAttribute().getFillFloatTransGradient());

            }

            else

            {

                // create simplified 3d hit test geometry

                aRetval = createHiddenGeometryPrimitives3D(

                    a3DPolyPolygonVector,

                    getTransform(),

                    getTextureSize(),

                    getSdr3DObjectAttribute());

            }

            // add line

            if(!getSdrLFSAttribute().getLine().isDefault())

            {

                basegfx::B3DPolyPolygon aSphere(basegfx::utils::createSpherePolyPolygonFromB3DRange(aUnitRange, getHorizontalSegments(), getVerticalSegments()));

                const Primitive3DContainer aLines(create3DPolyPolygonLinePrimitives(

                    aSphere, getTransform(), getSdrLFSAttribute().getLine()));

                aRetval.append(aLines);

            }

            // add shadow

            if(!getSdrLFSAttribute().getShadow().isDefault()

                && !aRetval.empty())

            {

                const Primitive3DContainer aShadow(createShadowPrimitive3D(

                    aRetval, getSdrLFSAttribute().getShadow(), getSdr3DObjectAttribute().getShadow3D()));

                aRetval.append(aShadow);

            }

            return aRetval;

        }

        SdrSpherePrimitive3D::SdrSpherePrimitive3D(

            const basegfx::B3DHomMatrix& rTransform,

            const basegfx::B2DVector& rTextureSize,

            const attribute::SdrLineFillShadowAttribute3D& rSdrLFSAttribute,

            const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute,

            sal_uInt32 nHorizontalSegments,

            sal_uInt32 nVerticalSegments)

        :   SdrPrimitive3D(rTransform, rTextureSize, rSdrLFSAttribute, rSdr3DObjectAttribute),

            mnHorizontalSegments(nHorizontalSegments),

            mnVerticalSegments(nVerticalSegments)

        {

        }

Unexecuted instantiation: drawinglayer::primitive3d::SdrSpherePrimitive3D::SdrSpherePrimitive3D(basegfx::B3DHomMatrix const&, basegfx::B2DVector const&, drawinglayer::attribute::SdrLineFillShadowAttribute3D const&, drawinglayer::attribute::Sdr3DObjectAttribute const&, unsigned int, unsigned int)

Unexecuted instantiation: drawinglayer::primitive3d::SdrSpherePrimitive3D::SdrSpherePrimitive3D(basegfx::B3DHomMatrix const&, basegfx::B2DVector const&, drawinglayer::attribute::SdrLineFillShadowAttribute3D const&, drawinglayer::attribute::Sdr3DObjectAttribute const&, unsigned int, unsigned int)

        bool SdrSpherePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const

        {

            if(SdrPrimitive3D::operator==(rPrimitive))

            {

                const SdrSpherePrimitive3D& rCompare = static_cast< const SdrSpherePrimitive3D& >(rPrimitive);

                return (getHorizontalSegments() == rCompare.getHorizontalSegments()

                    && getVerticalSegments() == rCompare.getVerticalSegments());

            }

            return false;

        }

        basegfx::B3DRange SdrSpherePrimitive3D::getB3DRange(const geometry::ViewInformation3D& /*rViewInformation*/) const

        {

            // use default from sdrPrimitive3D which uses transformation expanded by line width/2

            // The parent implementation which uses the ranges of the decomposition would be more

            // correct, but for historical reasons it is necessary to do the old method: To get

            // the range of the non-transformed geometry and transform it then. This leads to different

            // ranges where the new method is more correct, but the need to keep the old behaviour

            // has priority here.

            return getStandard3DRange();

        }

        // provide unique ID

        ImplPrimitive3DIDBlock(SdrSpherePrimitive3D, PRIMITIVE3D_ID_SDRSPHEREPRIMITIVE3D)

} // end of namespace

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