/**************************************************************
 * 
 * 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
 * 
 * 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.
 * 
 *************************************************************/



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

#include <drawinglayer/processor2d/contourextractor2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <drawinglayer/primitive2d/metafileprimitive2d.hxx>
#include <drawinglayer/primitive2d/transparenceprimitive2d.hxx>
#include <drawinglayer/primitive2d/maskprimitive2d.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
#include <drawinglayer/primitive2d/sceneprimitive2d.hxx>

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

using namespace com::sun::star;

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

namespace drawinglayer
{
	namespace processor2d
	{
		ContourExtractor2D::ContourExtractor2D(const geometry::ViewInformation2D& rViewInformation)
		:	BaseProcessor2D(rViewInformation),
			maExtractedContour()
		{
		}

		ContourExtractor2D::~ContourExtractor2D()
		{
		}

		void ContourExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
		{
			switch(rCandidate.getPrimitive2DID())
			{
				case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
				{
					// extract hairline in world coordinates
					const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
					basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
					aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());

                    if(aLocalPolygon.isClosed())
                    {
                        // line polygons need to be represented as open polygons to differentiate them
                        // from filled polygons
                        basegfx::tools::openWithGeometryChange(aLocalPolygon);
                    }

                    maExtractedContour.push_back(basegfx::B2DPolyPolygon(aLocalPolygon));
					break;
				}
				case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
				{
					// extract fill in world coordinates
					const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
					basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
					aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
					maExtractedContour.push_back(aLocalPolyPolygon);
					break;
				}
				case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
				{
					// extract BoundRect from bitmaps in world coordinates
					const primitive2d::BitmapPrimitive2D& rBitmapCandidate(static_cast< const primitive2d::BitmapPrimitive2D& >(rCandidate));
					basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rBitmapCandidate.getTransform());
					basegfx::B2DPolygon aPolygon(basegfx::tools::createUnitPolygon());
					aPolygon.transform(aLocalTransform);
                    maExtractedContour.push_back(basegfx::B2DPolyPolygon(aPolygon));
					break;
				}
				case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
				{
					// extract BoundRect from MetaFiles in world coordinates
					const primitive2d::MetafilePrimitive2D& rMetaCandidate(static_cast< const primitive2d::MetafilePrimitive2D& >(rCandidate));
					basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rMetaCandidate.getTransform());
					basegfx::B2DPolygon aPolygon(basegfx::tools::createUnitPolygon());
					aPolygon.transform(aLocalTransform);
					maExtractedContour.push_back(basegfx::B2DPolyPolygon(aPolygon));
					break;
				}
				case PRIMITIVE2D_ID_TRANSPARENCEPRIMITIVE2D :
				{
					// sub-transparence group. Look at children
					const primitive2d::TransparencePrimitive2D& rTransCandidate(static_cast< const primitive2d::TransparencePrimitive2D& >(rCandidate));
					process(rTransCandidate.getChildren());
					break;
				}
				case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
				{
					// extract mask in world coordinates, ignore content
					const primitive2d::MaskPrimitive2D& rMaskCandidate(static_cast< const primitive2d::MaskPrimitive2D& >(rCandidate));
					basegfx::B2DPolyPolygon aMask(rMaskCandidate.getMask());
					aMask.transform(getViewInformation2D().getObjectTransformation());
					maExtractedContour.push_back(basegfx::B2DPolyPolygon(aMask));
					break;
				}
				case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
				{
					// remember current ViewInformation2D
					const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
					const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());

					// create new local ViewInformation2D
					const geometry::ViewInformation2D aViewInformation2D(
						getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(), 
						getViewInformation2D().getViewTransformation(), 
						getViewInformation2D().getViewport(),
						getViewInformation2D().getVisualizedPage(),
						getViewInformation2D().getViewTime(),
						getViewInformation2D().getExtendedInformationSequence());
					updateViewInformation(aViewInformation2D);

					// proccess content
					process(rTransformCandidate.getChildren());

					// restore transformations
					updateViewInformation(aLastViewInformation2D);

					break;
				}
				case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
				{
					// 2D Scene primitive containing 3D stuff; extract 2D contour in world coordinates
					const primitive2d::ScenePrimitive2D& rScenePrimitive2DCandidate(static_cast< const primitive2d::ScenePrimitive2D& >(rCandidate));
					const primitive2d::Primitive2DSequence xExtracted2DSceneGeometry(rScenePrimitive2DCandidate.getGeometry2D());
					const primitive2d::Primitive2DSequence xExtracted2DSceneShadow(rScenePrimitive2DCandidate.getShadow2D(getViewInformation2D()));

					// proccess content
					if(xExtracted2DSceneGeometry.hasElements())
					{
						process(xExtracted2DSceneGeometry);
					}

					// proccess content
					if(xExtracted2DSceneShadow.hasElements())
					{
						process(xExtracted2DSceneShadow);
					}

					break;
				}
                case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
				case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
				case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
                {
					// ignorable primitives
					break;
				}
				case PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D :
				case PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D :
                {
					// primitives who's BoundRect will be added in world coordinates
					basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
					aRange.transform(getViewInformation2D().getObjectTransformation());
					maExtractedContour.push_back(basegfx::B2DPolyPolygon(basegfx::tools::createPolygonFromRect(aRange)));
					break;
				}
				default :
				{
					// process recursively
					process(rCandidate.get2DDecomposition(getViewInformation2D()));
					break;
				}
			}
		}

	} // end of namespace processor2d
} // end of namespace drawinglayer

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