4905a19032
Fixes #fdo30794 Based on bin/add-modelines script (originally posted in mail 1286706307.1871.1399280959@webmail.messagingengine.com) Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
541 lines
16 KiB
C++
541 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef _POLYGON_POINT_HXX
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#define _POLYGON_POINT_HXX
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#include <vector>
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//////////////////////////////////////////////////////////////////////////////
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template < class Point > class SimplePointEntry
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{
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Point maPoint;
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public:
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SimplePointEntry()
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: maPoint(Point::getEmptyPoint())
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{
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}
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SimplePointEntry(const Point& rInitPoint)
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: maPoint(rInitPoint)
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{
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}
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const Point& getPoint() const
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{
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return maPoint;
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}
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void setPoint(const Point& rValue)
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{
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maPoint = rValue;
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}
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bool operator==(const SimplePointEntry& rEntry) const
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{
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return (maPoint == rEntry.maPoint);
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}
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};
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//////////////////////////////////////////////////////////////////////////////
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template < class Vector > class SimpleBezierEntry
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{
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Vector maBackward;
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Vector maForward;
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public:
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SimpleBezierEntry()
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: maBackward(Vector::getEmptyVector()),
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maForward(Vector::getEmptyVector())
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{
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}
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SimpleBezierEntry(const Vector& rInitBackward, const Vector& rInitForward)
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: maBackward(rInitBackward),
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maForward(rInitForward)
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{
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}
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const Vector& getBackwardVector() const
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{
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return maBackward;
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}
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void setBackwardVector(const Vector& rValue)
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{
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maBackward = rValue;
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}
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const Vector& getForwardVector() const
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{
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return maForward;
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}
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void setForwardVector(const Vector& rValue)
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{
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maForward = rValue;
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}
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bool isBezierNeeded()
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{
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if(maBackward != Vector::getEmptyVector() || maForward != Vector::getEmptyVector())
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return true;
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return false;
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}
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bool operator==(const SimpleBezierEntry& rEntry) const
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{
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return ((maBackward == rEntry.maBackward) && (maForward == rEntry.maForward));
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}
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void doInvertForFlip()
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{
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maBackward = -maBackward;
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maForward = -maForward;
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}
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};
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//////////////////////////////////////////////////////////////////////////////
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template < class Point, class Vector > class PolygonPointList
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{
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typedef SimplePointEntry< Point > LocalSimplePointEntry;
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typedef SimpleBezierEntry< Vector > LocalSimpleBezierEntry;
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typedef ::std::vector< LocalSimplePointEntry > SimplePointVector;
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typedef ::std::vector< LocalSimpleBezierEntry > SimpleBezierVector;
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sal_uInt32 mnBezierCount;
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SimplePointVector maPoints;
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SimpleBezierVector* mpVectors;
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unsigned mbIsClosed : 1;
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void implTryToReduceToPointVector()
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{
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if(!mnBezierCount && mpVectors)
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{
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delete mpVectors;
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mpVectors = 0L;
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}
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}
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public:
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bool isBezier() const
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{
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return bool(mnBezierCount);
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}
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bool isClosed() const
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{
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return bool(mbIsClosed);
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}
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void setClosed(bool bNew)
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{
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mbIsClosed = bNew;
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}
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sal_uInt32 count() const
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{
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return maPoints.size();
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}
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PolygonPointList()
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: mnBezierCount(0L),
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mpVectors(0L),
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mbIsClosed(false)
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{
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// complete initialization with defaults
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}
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PolygonPointList(const PolygonPointList& rSource)
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: mnBezierCount(0L),
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maPoints(rSource.maPoints),
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mpVectors(0L),
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mbIsClosed(rSource.mbIsClosed)
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{
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// complete initialization using copy
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if(rSource.mpVectors && rSource.mnBezierCount)
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{
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mpVectors = new SimpleBezierVector(*rSource.mpVectors);
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mnBezierCount = rSource.mnBezierCount;
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}
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}
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PolygonPointList(const PolygonPointList& rSource, sal_uInt32 nIndex, sal_uInt32 nCount)
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: mnBezierCount(0L),
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maPoints(nCount),
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mpVectors(0L),
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mbIsClosed(rSource.mbIsClosed)
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{
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// complete initialization using partly copy
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if(nCount)
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{
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// copy point data
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{
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SimplePointVector::const_iterator aStart(rSource.maPoints.begin());
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aStart += nIndex;
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SimplePointVector::const_iterator aEnd(aStart);
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aEnd += nCount;
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maPoints.insert(0L, aStart, aEnd);
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}
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// copy bezier data
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if(rSource.mpVectors && rSource.mnBezierCount)
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{
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mpVectors = new SimpleBezierVector();
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mpVectors->reserve(nCount);
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SimpleBezierVector::iterator aStart(mpVectors->begin());
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aStart += nIndex;
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SimpleBezierVector::iterator aEnd(aStart);
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aEnd += nCount;
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for( ; aStart != aEnd; ++aStart )
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{
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if(aStart->IsBezierNeeded())
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{
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mnBezierCount++;
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}
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mpVectors->push_back(*aStart);
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}
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// maybe vectors are not needed anymore, try to reduce memory footprint
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implTryToReduceToPointVector();
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}
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}
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}
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~PolygonPointList()
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{
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if(mpVectors)
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{
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delete mpVectors;
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}
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}
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bool isEqual(const PolygonPointList& rPointList) const
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{
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// same point count?
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if(maPoints.size() != rPointList.maPoints.size())
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return false;
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// if zero points the polys are equal
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if(!maPoints.size())
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return true;
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// if bezier count used it needs to be equal
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if(mnBezierCount != rPointList.mnBezierCount)
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return false;
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// compare point content
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if(maPoints != rPointList.maPoints)
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return false;
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// beziercounts are equal: if it's zero, we are done
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if(!mnBezierCount)
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return true;
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// beziercounts are equal and not zero; compare them
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OSL_ENSURE(0L != mpVectors, "Error: Bezier list needs to exist here(!)");
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OSL_ENSURE(0L != rPointList.mpVectors, "Error: Bezier list needs to exist here(!)");
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return (*mpVectors == *rPointList.mpVectors);
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}
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const Point& getPoint(sal_uInt32 nIndex) const
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{
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return maPoints[nIndex].getPoint();
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}
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void setPoint(sal_uInt32 nIndex, const Point& rValue)
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{
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maPoints[nIndex].setPoint(rValue);
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}
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const Vector& getBackwardVector(sal_uInt32 nIndex) const
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{
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if(mpVectors)
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return ((*mpVectors)[nIndex]).getBackwardVector();
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else
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return Vector::getEmptyVector();
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}
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void setBackwardVector(sal_uInt32 nIndex, const Vector& rValue)
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{
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if(mpVectors)
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{
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LocalSimpleBezierEntry& rDest = (*mpVectors)[nIndex];
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bool bBezierNeededBefore(rDest.isBezierNeeded());
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((*mpVectors)[nIndex]).setBackwardVector(rValue);
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bool bBezierNeededAfter(rDest.isBezierNeeded());
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if(bBezierNeededBefore != bBezierNeededAfter)
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{
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if(bBezierNeededAfter)
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mnBezierCount++;
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else
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mnBezierCount--;
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}
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}
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else
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{
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bool bEmptyVector(rValue == Vector::getEmptyVector());
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if(bEmptyVector)
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return;
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mpVectors = new SimpleBezierVector(maPoints.size());
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((*mpVectors)[nIndex]).setBackwardVector(rValue);
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mnBezierCount++;
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}
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}
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const Vector& getForwardVector(sal_uInt32 nIndex) const
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{
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if(mpVectors)
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return ((*mpVectors)[nIndex]).getForwardVector();
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else
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return Vector::getEmptyVector();
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}
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void setForwardVector(sal_uInt32 nIndex, const Vector& rValue)
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{
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if(mpVectors)
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{
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LocalSimpleBezierEntry& rDest = (*mpVectors)[nIndex];
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bool bBezierNeededBefore(rDest.isBezierNeeded());
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((*mpVectors)[nIndex]).setForwardVector(rValue);
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bool bBezierNeededAfter(rDest.isBezierNeeded());
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if(bBezierNeededBefore != bBezierNeededAfter)
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{
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if(bBezierNeededAfter)
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mnBezierCount++;
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else
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mnBezierCount--;
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}
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}
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else
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{
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bool bEmptyVector(rValue == Vector::getEmptyVector());
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if(bEmptyVector)
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return;
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mpVectors = new SimpleBezierVector(maPoints.size());
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((*mpVectors)[nIndex]).setForwardVector(rValue);
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mnBezierCount++;
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}
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}
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void insert(sal_uInt32 nIndex, const Point& rPoint, sal_uInt32 nCount)
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{
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if(nCount)
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{
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// maybe vectors are not needed anymore, try to reduce memory footprint
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implTryToReduceToPointVector();
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// add nCount copies of rPoint
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{
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LocalSimplePointEntry aNode(rPoint);
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SimplePointVector::iterator aIndex(maPoints.begin());
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aIndex += nIndex;
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maPoints.insert(aIndex, nCount, aNode);
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}
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// add nCount empty entries to keep indices synchronized
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if(mpVectors)
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{
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LocalSimpleBezierEntry aNode;
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SimpleBezierVector::iterator aIndex(mpVectors->begin());
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aIndex += nIndex;
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mpVectors->insert(aIndex, nCount, aNode);
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}
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}
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}
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void insert(sal_uInt32 nIndex, const PolygonPointList& rSource)
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{
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const sal_uInt32 nCount(rSource.maPoints.size());
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if(nCount)
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{
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// instert point data
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{
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SimplePointVector::iterator aIndex(maPoints.begin());
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aIndex += nIndex;
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SimplePointVector::const_iterator aStart(rSource.maPoints.begin());
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SimplePointVector::const_iterator aEnd(rSource.maPoints.end());
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maPoints.insert(aIndex, aStart, aEnd);
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}
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// insert bezier data
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if(rSource.mpVectors && rSource.mnBezierCount)
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{
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SimpleBezierVector::iterator aIndex(mpVectors->begin());
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aIndex += nIndex;
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SimpleBezierVector::iterator aStart(rSource.mpVectors->begin());
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SimpleBezierVector::iterator aEnd(rSource.mpVectors->end());
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if(!mpVectors)
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{
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mpVectors = new SimpleBezierVector(maPoints.size() - nCount);
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}
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mpVectors->insert(aIndex, aStart, aEnd);
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mnBezierCount += rSource.mnBezierCount;
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}
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else
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{
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// maybe vectors are not needed anymore, try to reduce memory footprint
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implTryToReduceToPointVector();
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// add nCount empty entries to keep indices synchronized
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if(mpVectors)
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{
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LocalSimpleBezierEntry aNode;
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SimpleBezierVector::iterator aIndex(mpVectors->begin());
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aIndex += nIndex;
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mpVectors->insert(aIndex, nCount, aNode);
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}
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}
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}
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}
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void remove(sal_uInt32 nIndex, sal_uInt32 nCount)
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{
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if(nCount)
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{
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// maybe vectors are not needed anymore, try to reduce memory footprint
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implTryToReduceToPointVector();
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// remove point data
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{
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SimplePointVector::iterator aStart(maPoints.begin());
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aStart += nIndex;
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const SimplePointVector::iterator aEnd(aStart + nCount);
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maPoints.erase(aStart, aEnd);
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}
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// remove bezier data
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if(mpVectors)
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{
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SimpleBezierVector::iterator aStart(mpVectors->begin());
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aStart += nIndex;
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const SimpleBezierVector::iterator aEnd(aStart + nCount);
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// take care for correct mnBezierCount BEFORE erase
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if(mnBezierCount)
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{
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SimpleBezierVector::iterator aTestIter(aStart);
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for( ; mnBezierCount && aTestIter != aEnd; ++aTestIter)
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{
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if(aTestIter->isBezierNeeded())
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mnBezierCount--;
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}
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}
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if(mnBezierCount)
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{
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// erase nodes
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mpVectors->erase(aStart, aEnd);
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}
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else
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{
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// try to reduce, maybe 0L == mnBezierCount
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implTryToReduceToPointVector();
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}
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}
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}
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}
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void flip()
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{
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if(maPoints.size() > 1)
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{
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// maybe vectors are not needed anymore, try to reduce memory footprint
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implTryToReduceToPointVector();
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// calculate half size
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const sal_uInt32 nHalfSize(maPoints.size() >> 1L);
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// flip point data
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{
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SimplePointVector::iterator aStart(maPoints.begin());
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SimplePointVector::iterator aEnd(maPoints.end());
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for(sal_uInt32 a(0); a < nHalfSize; a++)
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{
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LocalSimplePointEntry aTemp = *aStart;
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*aStart++ = *aEnd;
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*aEnd-- = aTemp;
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}
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}
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// flip bezier data
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if(mpVectors)
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{
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SimpleBezierVector::iterator aStart(mpVectors->begin());
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SimpleBezierVector::iterator aEnd(mpVectors->end());
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for(sal_uInt32 a(0); a < nHalfSize; a++)
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{
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LocalSimpleBezierEntry aTemp = *aStart;
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aTemp.doInvertForFlip();
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*aStart = *aEnd;
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aStart->doInvertForFlip();
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aStart++;
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*aEnd-- = aTemp;
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}
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// also flip vectors of middle point (if existing)
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if(maPoints.size() % 2)
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{
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(*mpVectors)[nHalfSize].doInvertForFlip();
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}
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}
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}
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}
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};
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//////////////////////////////////////////////////////////////////////////////
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#endif _POLYGON_POINT_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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