/**************************************************************
 * 
 * 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/textaspolygonextractor2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>

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

namespace drawinglayer
{
	namespace processor2d
	{
		void TextAsPolygonExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
		{
			switch(rCandidate.getPrimitive2DID())
			{
				case PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D :
				{
					// TextDecoratedPortionPrimitive2D can produce the following primitives
					// when being decomposed:
					//
					// - TextSimplePortionPrimitive2D
					// - PolygonWavePrimitive2D
					//		- PolygonStrokePrimitive2D
					// - PolygonStrokePrimitive2D
					//		- PolyPolygonColorPrimitive2D
					//		- PolyPolygonHairlinePrimitive2D
					//			- PolygonHairlinePrimitive2D
					// - ShadowPrimitive2D
					//		- ModifiedColorPrimitive2D
					//		- TransformPrimitive2D
					// - TextEffectPrimitive2D
					//		- ModifiedColorPrimitive2D
					//		- TransformPrimitive2D
					//		- GroupPrimitive2D
					
					// encapsulate with flag and use decomposition
					mnInText++;
					process(rCandidate.get2DDecomposition(getViewInformation2D()));
					mnInText--;
					
					break;
				}
				case PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D :
				{
					// TextSimplePortionPrimitive2D can produce the following primitives
					// when being decomposed:
					//
					// - PolyPolygonColorPrimitive2D
					// - TextEffectPrimitive2D
					//		- ModifiedColorPrimitive2D
					//		- TransformPrimitive2D
					//		- GroupPrimitive2D
					
					// encapsulate with flag and use decomposition
					mnInText++;
					process(rCandidate.get2DDecomposition(getViewInformation2D()));
					mnInText--;
					
					break;
				}

				// as can be seen from the TextSimplePortionPrimitive2D and the
				// TextDecoratedPortionPrimitive2D, inside of the mnInText marks
				// the following primitives can occurr containing geometry data
				// from text decomposition:
				//
				// - PolyPolygonColorPrimitive2D
				// - PolygonHairlinePrimitive2D
				// - PolyPolygonHairlinePrimitive2D (for convenience)
				//
				case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
				{
					if(mnInText)
					{
						const primitive2d::PolyPolygonColorPrimitive2D& rPoPoCoCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
						basegfx::B2DPolyPolygon aPolyPolygon(rPoPoCoCandidate.getB2DPolyPolygon());

						if(aPolyPolygon.count())
						{
							// transform the PolyPolygon
							aPolyPolygon.transform(getViewInformation2D().getObjectToViewTransformation());

							// get evtl. corrected color
							const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoPoCoCandidate.getBColor()));

							// add to result vector
							maTarget.push_back(TextAsPolygonDataNode(aPolyPolygon, aColor, true));
						}
					}

					break;
				}
				case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
				{
					if(mnInText)
					{
						const primitive2d::PolygonHairlinePrimitive2D& rPoHaCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
						basegfx::B2DPolygon aPolygon(rPoHaCandidate.getB2DPolygon());

						if(aPolygon.count())
						{
							// transform the Polygon
							aPolygon.transform(getViewInformation2D().getObjectToViewTransformation());

							// get evtl. corrected color
							const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoHaCandidate.getBColor()));

							// add to result vector
							maTarget.push_back(TextAsPolygonDataNode(basegfx::B2DPolyPolygon(aPolygon), aColor, false));
						}
					}

					break;
				}
				case PRIMITIVE2D_ID_POLYPOLYGONHAIRLINEPRIMITIVE2D :
				{
					if(mnInText)
					{
						const primitive2d::PolyPolygonHairlinePrimitive2D& rPoPoHaCandidate(static_cast< const primitive2d::PolyPolygonHairlinePrimitive2D& >(rCandidate));
						basegfx::B2DPolyPolygon aPolyPolygon(rPoPoHaCandidate.getB2DPolyPolygon());

						if(aPolyPolygon.count())
						{
							// transform the Polygon
							aPolyPolygon.transform(getViewInformation2D().getObjectToViewTransformation());

							// get evtl. corrected color
							const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoPoHaCandidate.getBColor()));

							// add to result vector
							maTarget.push_back(TextAsPolygonDataNode(aPolyPolygon, aColor, false));
						}
					}

					break;
				}

				// usage of color modification stack is needed
				case PRIMITIVE2D_ID_MODIFIEDCOLORPRIMITIVE2D :
				{
					const primitive2d::ModifiedColorPrimitive2D& rModifiedColorCandidate(static_cast< const primitive2d::ModifiedColorPrimitive2D& >(rCandidate));

					if(rModifiedColorCandidate.getChildren().hasElements())
					{
						maBColorModifierStack.push(rModifiedColorCandidate.getColorModifier());
						process(rModifiedColorCandidate.getChildren());
						maBColorModifierStack.pop();
					}
					
					break;
				}

				// usage of transformation stack is needed
				case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
				{
					// remember current transformation and ViewInformation
					const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
					const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());

					// create new transformations for CurrentTransformation and for 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;
				}

				// ignorable primitives
				case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
                case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
				case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
				case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
				case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
				case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
				case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
                {
					break;
				}

				default :
				{
					// process recursively
					process(rCandidate.get2DDecomposition(getViewInformation2D()));
					break;
				}
			}
		}

		TextAsPolygonExtractor2D::TextAsPolygonExtractor2D(const geometry::ViewInformation2D& rViewInformation)
		:	BaseProcessor2D(rViewInformation),
			maTarget(),
			maBColorModifierStack(),
			mnInText(0)
		{
		}

		TextAsPolygonExtractor2D::~TextAsPolygonExtractor2D()
		{
		}
	} // end of namespace processor2d
} // end of namespace drawinglayer

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