xref: /AOO41X/main/drawinglayer/source/processor2d/linegeometryextractor2d.cxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)

/*************************************************************************
 *
 * 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/processor2d/linegeometryextractor2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>

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

using namespace com::sun::star;

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

namespace drawinglayer
{
	namespace processor2d
	{
		LineGeometryExtractor2D::LineGeometryExtractor2D(const geometry::ViewInformation2D& rViewInformation)
		:	BaseProcessor2D(rViewInformation),
			maExtractedHairlines(),
			maExtractedLineFills(),
            mbInLineGeometry(false)
		{
		}

		LineGeometryExtractor2D::~LineGeometryExtractor2D()
		{
		}

		void LineGeometryExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
		{
			switch(rCandidate.getPrimitive2DID())
			{
				case PRIMITIVE2D_ID_POLYGONSTROKEPRIMITIVE2D :
				case PRIMITIVE2D_ID_POLYGONSTROKEARROWPRIMITIVE2D :
                {
                    // enter a line geometry group (with or without LineEnds)
                    bool bOldState(mbInLineGeometry);
                    mbInLineGeometry = true;
					process(rCandidate.get2DDecomposition(getViewInformation2D()));
                    mbInLineGeometry = bOldState;
                    break;
                }
				case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
				{
                    if(mbInLineGeometry)
                    {
					    // extract hairline line geometry in world coordinates
					    const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
					    basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
					    aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
                        maExtractedHairlines.push_back(aLocalPolygon);
                    }
					break;
				}
				case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
				{
                    if(mbInLineGeometry)
                    {
					    // extract filled line geometry (line with width)
					    const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
					    basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
					    aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
					    maExtractedLineFills.push_back(aLocalPolyPolygon);
                    }
					break;
				}
				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;
				}
				case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
                case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
				case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
				case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
				case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
				case PRIMITIVE2D_ID_RENDERGRAPHICPRIMITIVE2D :
				case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
				case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
                {
					// ignorable primitives
					break;
				}
				default :
				{
					// process recursively
					process(rCandidate.get2DDecomposition(getViewInformation2D()));
					break;
				}
			}
		}
	} // end of namespace processor2d
} // end of namespace drawinglayer

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