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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
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 *************************************************************/


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

#include <drawinglayer/primitive3d/sdrcubeprimitive3d.hxx>
#include <basegfx/polygon/b3dpolypolygontools.hxx>
#include <basegfx/polygon/b3dpolygon.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <drawinglayer/primitive3d/sdrdecompositiontools3d.hxx>
#include <basegfx/tools/canvastools.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
{
	namespace primitive3d
	{
		Primitive3DSequence SdrCubePrimitive3D::create3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const
		{
			const basegfx::B3DRange aUnitRange(0.0, 0.0, 0.0, 1.0, 1.0, 1.0);
			Primitive3DSequence aRetval;
			basegfx::B3DPolyPolygon aFill(basegfx::tools::createCubeFillPolyPolygonFromB3DRange(aUnitRange));

			// normal creation
			if(!getSdrLFSAttribute().getFill().isDefault())
			{
				if(::com::sun::star::drawing::NormalsKind_SPECIFIC == getSdr3DObjectAttribute().getNormalsKind()
					|| ::com::sun::star::drawing::NormalsKind_SPHERE == getSdr3DObjectAttribute().getNormalsKind())
				{
					// create sphere normals
					const basegfx::B3DPoint aCenter(basegfx::tools::getRange(aFill).getCenter());
					aFill = basegfx::tools::applyDefaultNormalsSphere(aFill, aCenter);
				}

				if(getSdr3DObjectAttribute().getNormalsInvert())
				{
					// invert normals
					aFill = basegfx::tools::invertNormals(aFill);
				}
			}

			// texture coordinates
			if(!getSdrLFSAttribute().getFill().isDefault())
			{
				// handle texture coordinates X
				const bool bParallelX(::com::sun::star::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionX());
				const bool bObjectSpecificX(::com::sun::star::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionX());
				const bool bSphereX(!bParallelX && (::com::sun::star::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionX()));

				// handle texture coordinates Y
				const bool bParallelY(::com::sun::star::drawing::TextureProjectionMode_PARALLEL == getSdr3DObjectAttribute().getTextureProjectionY());
				const bool bObjectSpecificY(::com::sun::star::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionY());
				const bool bSphereY(!bParallelY && (::com::sun::star::drawing::TextureProjectionMode_SPHERE == getSdr3DObjectAttribute().getTextureProjectionY()));

				if(bParallelX || bParallelY)
				{
					// apply parallel texture coordinates in X and/or Y
					const basegfx::B3DRange aRange(basegfx::tools::getRange(aFill));
					aFill = basegfx::tools::applyDefaultTextureCoordinatesParallel(aFill, aRange, bParallelX, bParallelY);
				}

				if(bSphereX || bSphereY)
				{
					// apply spherical texture coordinates in X and/or Y
					const basegfx::B3DRange aRange(basegfx::tools::getRange(aFill));
					const basegfx::B3DPoint aCenter(aRange.getCenter());
					aFill = basegfx::tools::applyDefaultTextureCoordinatesSphere(aFill, aCenter, bSphereX, bSphereY);
				}
				
				if(bObjectSpecificX || bObjectSpecificY)
				{
					// object-specific
					for(sal_uInt32 a(0L); a < aFill.count(); a++)
					{
						basegfx::B3DPolygon aTmpPoly(aFill.getB3DPolygon(a));

						if(aTmpPoly.count() >= 4L)
						{
							for(sal_uInt32 b(0L); b < 4L; b++)
							{
								basegfx::B2DPoint aPoint(aTmpPoly.getTextureCoordinate(b));

								if(bObjectSpecificX)
								{
									aPoint.setX((1L == b || 2L == b) ? 1.0 : 0.0);
								}
								
								if(bObjectSpecificY)
								{
									aPoint.setY((2L == b || 3L == b) ? 1.0 : 0.0);
								}

								aTmpPoly.setTextureCoordinate(b, aPoint);
							}

							aFill.setB3DPolygon(a, aTmpPoly);
						}
					}
				}

				// transform texture coordinates to texture size
				basegfx::B2DHomMatrix aTexMatrix;
				aTexMatrix.scale(getTextureSize().getX(), getTextureSize().getY());
				aFill.transformTextureCoordiantes(aTexMatrix);
			}

			// build vector of PolyPolygons
			::std::vector< basegfx::B3DPolyPolygon > a3DPolyPolygonVector;

			for(sal_uInt32 a(0L); a < aFill.count(); a++)
			{
				a3DPolyPolygonVector.push_back(basegfx::B3DPolyPolygon(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 aLine(basegfx::tools::createCubePolyPolygonFromB3DRange(aUnitRange));
				const Primitive3DSequence aLines(create3DPolyPolygonLinePrimitives(
                    aLine, getTransform(), getSdrLFSAttribute().getLine()));
				appendPrimitive3DSequenceToPrimitive3DSequence(aRetval, aLines);
			}

			// add shadow
			if(!getSdrLFSAttribute().getShadow().isDefault() && aRetval.hasElements())
			{
				const Primitive3DSequence aShadow(createShadowPrimitive3D(
                    aRetval, getSdrLFSAttribute().getShadow(), getSdr3DObjectAttribute().getShadow3D()));
				appendPrimitive3DSequenceToPrimitive3DSequence(aRetval, aShadow);
			}

			return aRetval;
		}

		SdrCubePrimitive3D::SdrCubePrimitive3D(
			const basegfx::B3DHomMatrix& rTransform, 
			const basegfx::B2DVector& rTextureSize,
			const attribute::SdrLineFillShadowAttribute3D& rSdrLFSAttribute,
			const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute)
		:	SdrPrimitive3D(rTransform, rTextureSize, rSdrLFSAttribute, rSdr3DObjectAttribute)
		{
		}

		bool SdrCubePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const
		{
			return SdrPrimitive3D::operator==(rPrimitive);
		}

		basegfx::B3DRange SdrCubePrimitive3D::getB3DRange(const geometry::ViewInformation3D& /*rViewInformation*/) const
		{
			// use defaut from sdrPrimitive3D which uses transformation expanded by line width/2.
			// The parent implementation which uses the ranges of the decomposition would be more
			// corrcet, 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
		ImplPrimitrive3DIDBlock(SdrCubePrimitive3D, PRIMITIVE3D_ID_SDRCUBEPRIMITIVE3D)

	} // end of namespace primitive3d
} // end of namespace drawinglayer

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