/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

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

#include <drawinglayer/processor3d/geometry2dextractor.hxx>
#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>
#include <drawinglayer/primitive3d/transformprimitive3d.hxx>
#include <drawinglayer/primitive3d/modifiedcolorprimitive3d.hxx>
#include <drawinglayer/primitive3d/polygonprimitive3d.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <drawinglayer/primitive3d/textureprimitive3d.hxx>

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

using namespace com::sun::star;

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

namespace drawinglayer
{
	namespace processor3d
	{
		// as tooling, the process() implementation takes over API handling and calls this
		// virtual render method when the primitive implementation is BasePrimitive3D-based.
		void Geometry2DExtractingProcessor::processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate)
		{
			// it is a BasePrimitive3D implementation, use getPrimitive3DID() call for switch
			switch(rCandidate.getPrimitive3DID())
			{
				case PRIMITIVE3D_ID_TRANSFORMPRIMITIVE3D :
				{
					// transform group. Remember current transformations
					const primitive3d::TransformPrimitive3D& rPrimitive = static_cast< const primitive3d::TransformPrimitive3D& >(rCandidate);
					const geometry::ViewInformation3D aLastViewInformation3D(getViewInformation3D());

					// create new transformation; add new object transform from right side
					const geometry::ViewInformation3D aNewViewInformation3D(
						aLastViewInformation3D.getObjectTransformation() * rPrimitive.getTransformation(),
						aLastViewInformation3D.getOrientation(),
						aLastViewInformation3D.getProjection(),
						aLastViewInformation3D.getDeviceToView(),
						aLastViewInformation3D.getViewTime(),
						aLastViewInformation3D.getExtendedInformationSequence());
					updateViewInformation(aNewViewInformation3D);

					// let break down recursively
					process(rPrimitive.getChildren());

					// restore transformations
					updateViewInformation(aLastViewInformation3D);
					break;
				}
				case PRIMITIVE3D_ID_MODIFIEDCOLORPRIMITIVE3D :
				{
					// ModifiedColorPrimitive3D; push, process and pop
					const primitive3d::ModifiedColorPrimitive3D& rModifiedCandidate = static_cast< const primitive3d::ModifiedColorPrimitive3D& >(rCandidate);
					const primitive3d::Primitive3DSequence& rSubSequence = rModifiedCandidate.getChildren();

					if(rSubSequence.hasElements())
					{
						maBColorModifierStack.push(rModifiedCandidate.getColorModifier());
						process(rModifiedCandidate.getChildren());
						maBColorModifierStack.pop();
					}
					break;
				}
				case PRIMITIVE3D_ID_POLYGONHAIRLINEPRIMITIVE3D :
				{
					// PolygonHairlinePrimitive3D
					const primitive3d::PolygonHairlinePrimitive3D& rPrimitive = static_cast< const primitive3d::PolygonHairlinePrimitive3D& >(rCandidate);
					basegfx::B2DPolygon a2DHairline(basegfx::tools::createB2DPolygonFromB3DPolygon(rPrimitive.getB3DPolygon(), getViewInformation3D().getObjectToView()));

					if(a2DHairline.count())
					{
						a2DHairline.transform(getObjectTransformation());
						const basegfx::BColor aModifiedColor(maBColorModifierStack.getModifiedColor(rPrimitive.getBColor()));
						const primitive2d::Primitive2DReference xRef(new primitive2d::PolygonHairlinePrimitive2D(a2DHairline, aModifiedColor));
						primitive2d::appendPrimitive2DReferenceToPrimitive2DSequence(maPrimitive2DSequence, xRef);
					}
					break;
				}
				case PRIMITIVE3D_ID_POLYPOLYGONMATERIALPRIMITIVE3D :
				{
					// PolyPolygonMaterialPrimitive3D
					const primitive3d::PolyPolygonMaterialPrimitive3D& rPrimitive = static_cast< const primitive3d::PolyPolygonMaterialPrimitive3D& >(rCandidate);
					basegfx::B2DPolyPolygon a2DFill(basegfx::tools::createB2DPolyPolygonFromB3DPolyPolygon(rPrimitive.getB3DPolyPolygon(), getViewInformation3D().getObjectToView()));

					if(a2DFill.count())
					{
						a2DFill.transform(getObjectTransformation());
						const basegfx::BColor aModifiedColor(maBColorModifierStack.getModifiedColor(rPrimitive.getMaterial().getColor()));
						const primitive2d::Primitive2DReference xRef(new primitive2d::PolyPolygonColorPrimitive2D(a2DFill, aModifiedColor));
						primitive2d::appendPrimitive2DReferenceToPrimitive2DSequence(maPrimitive2DSequence, xRef);
					}
					break;
				}
				case PRIMITIVE3D_ID_GRADIENTTEXTUREPRIMITIVE3D :
				case PRIMITIVE3D_ID_HATCHTEXTUREPRIMITIVE3D :
				case PRIMITIVE3D_ID_BITMAPTEXTUREPRIMITIVE3D :
				case PRIMITIVE3D_ID_TRANSPARENCETEXTUREPRIMITIVE3D :
				case PRIMITIVE3D_ID_UNIFIEDTRANSPARENCETEXTUREPRIMITIVE3D :
				{
					// TexturePrimitive3D: Process children, do not try to decompose
					const primitive3d::TexturePrimitive3D& rTexturePrimitive = static_cast< const primitive3d::TexturePrimitive3D& >(rCandidate);
					const primitive3d::Primitive3DSequence aChildren(rTexturePrimitive.getChildren());
					
					if(aChildren.hasElements())
					{
						process(aChildren);
					}
					break;
				}
				case PRIMITIVE3D_ID_SHADOWPRIMITIVE3D :
				{
					// accept but ignore labels and shadow; these should be extracted seperately
					break;
				}
				default :
				{
					// process recursively
					process(rCandidate.get3DDecomposition(getViewInformation3D()));
					break;
				}
			}
		}

		Geometry2DExtractingProcessor::Geometry2DExtractingProcessor(
			const geometry::ViewInformation3D& rViewInformation,
			const basegfx::B2DHomMatrix& rObjectTransformation)
		:	BaseProcessor3D(rViewInformation),
			maPrimitive2DSequence(),
			maObjectTransformation(rObjectTransformation),
			maBColorModifierStack()
		{
		}
	} // end of namespace processor3d
} // end of namespace drawinglayer

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