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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"

#include <svx/sdr/contact/viewcontactofe3dsphere.hxx>
#include <svx/sphere3d.hxx>
#include <drawinglayer/primitive3d/sdrsphereprimitive3d.hxx>
#include <svx/sdr/primitive2d/sdrattributecreator.hxx>
#include <svx/sdr/primitive3d/sdrattributecreator3d.hxx>

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

namespace sdr
{
	namespace contact
	{
		ViewContactOfE3dSphere::ViewContactOfE3dSphere(E3dSphereObj& rSphere)
		:	ViewContactOfE3d(rSphere)
		{
		}

		ViewContactOfE3dSphere::~ViewContactOfE3dSphere()
		{
		}

		drawinglayer::primitive3d::Primitive3DSequence ViewContactOfE3dSphere::createViewIndependentPrimitive3DSequence() const
		{
			drawinglayer::primitive3d::Primitive3DSequence xRetval;
			const SfxItemSet& rItemSet = GetE3dSphereObj().GetMergedItemSet();
			const drawinglayer::attribute::SdrLineFillShadowAttribute3D aAttribute(
				drawinglayer::primitive2d::createNewSdrLineFillShadowAttribute(rItemSet, false));

			// get sphere center and size for geometry
			basegfx::B3DRange aSphereRange;
			const basegfx::B3DPoint aSpherePosition(GetE3dSphereObj().Center());
			const basegfx::B3DVector aSphereSize(GetE3dSphereObj().Size());
			basegfx::B3DHomMatrix aWorldTransform;

			aWorldTransform.translate(-0.5, -0.5, -0.5);
			aWorldTransform.scale(aSphereSize.getX(), aSphereSize.getY(), aSphereSize.getZ());
			aWorldTransform.translate(aSpherePosition.getX(), aSpherePosition.getY(), aSpherePosition.getZ());

			// get 3D Object Attributes
			drawinglayer::attribute::Sdr3DObjectAttribute* pSdr3DObjectAttribute = drawinglayer::primitive2d::createNewSdr3DObjectAttribute(rItemSet);

			// get segment count
			const sal_uInt32 nHorizontalSegments(GetE3dSphereObj().GetHorizontalSegments());
			const sal_uInt32 nVerticalSegments(GetE3dSphereObj().GetVerticalSegments());

			// calculate texture size, use radii for (2 * PI * r) to get a perfect
			// mapping on the sphere
			const basegfx::B2DVector aTextureSize(
				F_PI * ((aSphereSize.getX() + aSphereSize.getZ()) / 2.0), // PI * d
				F_PI2 * aSphereSize.getY()); // half outline, (PI * d)/2 -> PI/2 * d

			// create primitive and add
			const drawinglayer::primitive3d::Primitive3DReference xReference(
				new drawinglayer::primitive3d::SdrSpherePrimitive3D(
					aWorldTransform, aTextureSize, aAttribute, *pSdr3DObjectAttribute, 
					nHorizontalSegments, nVerticalSegments));
            xRetval = drawinglayer::primitive3d::Primitive3DSequence(&xReference, 1);

			// delete 3D Object Attributes
			delete pSdr3DObjectAttribute;

			return xRetval;
		}
	} // end of namespace contact
} // end of namespace sdr

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