LCOV - code coverage report
Current view: top level - basegfx/source/tools - unotools.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 106 0.0 %
Date: 2014-04-14 Functions: 0 2 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <com/sun/star/drawing/PolyPolygonBezierCoords.hpp>
      21             : #include <com/sun/star/drawing/PointSequence.hpp>
      22             : #include <com/sun/star/drawing/FlagSequence.hpp>
      23             : #include <basegfx/polygon/b2dpolypolygontools.hxx>
      24             : #include <basegfx/polygon/b2dpolygontools.hxx>
      25             : #include <basegfx/polygon/b2dpolygon.hxx>
      26             : #include <basegfx/curve/b2dcubicbezier.hxx>
      27             : 
      28             : #include <basegfx/tools/unotools.hxx>
      29             : #include <comphelper/sequence.hxx>
      30             : 
      31             : 
      32             : using namespace ::com::sun::star;
      33             : 
      34             : namespace basegfx
      35             : {
      36             : namespace unotools
      37             : {
      38             : 
      39           0 :     B2DPolyPolygon polyPolygonBezierToB2DPolyPolygon(const drawing::PolyPolygonBezierCoords& rSourcePolyPolygon)
      40             :         throw( lang::IllegalArgumentException )
      41             :     {
      42           0 :         const sal_Int32 nOuterSequenceCount(rSourcePolyPolygon.Coordinates.getLength());
      43           0 :         B2DPolyPolygon aNewPolyPolygon;
      44             : 
      45           0 :         if(rSourcePolyPolygon.Flags.getLength() != nOuterSequenceCount)
      46           0 :             throw lang::IllegalArgumentException();
      47             : 
      48             :         // get pointers to inner sequence
      49           0 :         const drawing::PointSequence* pInnerSequence = rSourcePolyPolygon.Coordinates.getConstArray();
      50           0 :         const drawing::FlagSequence* pInnerSequenceFlags = rSourcePolyPolygon.Flags.getConstArray();
      51             : 
      52           0 :         for(sal_Int32 a(0); a < nOuterSequenceCount; a++)
      53             :         {
      54           0 :             const sal_Int32 nInnerSequenceCount(pInnerSequence->getLength());
      55             : 
      56           0 :             if(pInnerSequenceFlags->getLength() != nInnerSequenceCount)
      57           0 :                 throw lang::IllegalArgumentException();
      58             : 
      59             :             // prepare new polygon
      60           0 :             basegfx::B2DPolygon aNewPolygon;
      61           0 :             const awt::Point* pArray = pInnerSequence->getConstArray();
      62           0 :             const drawing::PolygonFlags* pArrayFlags = pInnerSequenceFlags->getConstArray();
      63             : 
      64             :             // get first point and flag
      65           0 :             basegfx::B2DPoint aNewCoordinatePair(pArray->X, pArray->Y); pArray++;
      66           0 :             drawing::PolygonFlags ePolyFlag(*pArrayFlags); pArrayFlags++;
      67           0 :             basegfx::B2DPoint aControlA;
      68           0 :             basegfx::B2DPoint aControlB;
      69             : 
      70             :             // first point is not allowed to be a control point
      71           0 :             if(drawing::PolygonFlags_CONTROL == ePolyFlag)
      72           0 :                 throw lang::IllegalArgumentException();
      73             : 
      74             :             // add first point as start point
      75           0 :             aNewPolygon.append(aNewCoordinatePair);
      76           0 :             for(sal_Int32 b(1); b < nInnerSequenceCount;)
      77             :             {
      78             :                 // prepare loop
      79           0 :                 bool bControlA(false);
      80           0 :                 bool bControlB(false);
      81             : 
      82             :                 // get next point and flag
      83           0 :                 aNewCoordinatePair = basegfx::B2DPoint(pArray->X, pArray->Y);
      84           0 :                 ePolyFlag = *pArrayFlags;
      85           0 :                 pArray++; pArrayFlags++; b++;
      86             : 
      87           0 :                 if(b < nInnerSequenceCount && drawing::PolygonFlags_CONTROL == ePolyFlag)
      88             :                 {
      89           0 :                     aControlA = aNewCoordinatePair;
      90           0 :                     bControlA = true;
      91             : 
      92             :                     // get next point and flag
      93           0 :                     aNewCoordinatePair = basegfx::B2DPoint(pArray->X, pArray->Y);
      94           0 :                     ePolyFlag = *pArrayFlags;
      95           0 :                     pArray++; pArrayFlags++; b++;
      96             :                 }
      97             : 
      98           0 :                 if(b < nInnerSequenceCount && drawing::PolygonFlags_CONTROL == ePolyFlag)
      99             :                 {
     100           0 :                     aControlB = aNewCoordinatePair;
     101           0 :                     bControlB = true;
     102             : 
     103             :                     // get next point and flag
     104           0 :                     aNewCoordinatePair = basegfx::B2DPoint(pArray->X, pArray->Y);
     105           0 :                     ePolyFlag = *pArrayFlags;
     106           0 :                     pArray++; pArrayFlags++; b++;
     107             :                 }
     108             : 
     109             :                 // two or no control points are consumed, another one would be an error.
     110             :                 // It's also an error if only one control point was read
     111           0 :                 if(drawing::PolygonFlags_CONTROL == ePolyFlag || bControlA != bControlB)
     112           0 :                     throw lang::IllegalArgumentException();
     113             : 
     114             :                 // the previous writes used the B2DPolyPoygon -> PolyPolygon converter
     115             :                 // which did not create minimal PolyPolygons, but created all control points
     116             :                 // as null vectors (identical points). Because of the former P(CA)(CB)-norm of
     117             :                 // B2DPolygon and it's unused sign of being the zero-vector and CA and CB being
     118             :                 // relative to P, an empty edge was exported as P == CA == CB. Luckily, the new
     119             :                 // export format can be read without errors by the old OOo-versions, so we need only
     120             :                 // to correct here at read and do not need to export a wrong but compatible version
     121             :                 // for the future.
     122           0 :                 if(bControlA
     123           0 :                    && aControlA.equal(aControlB)
     124           0 :                    && aControlA.equal(aNewPolygon.getB2DPoint(aNewPolygon.count() - 1)))
     125             :                 {
     126           0 :                     bControlA = bControlB = false;
     127             :                 }
     128             : 
     129           0 :                 if(bControlA)
     130             :                 {
     131             :                     // add bezier edge
     132           0 :                     aNewPolygon.appendBezierSegment(aControlA, aControlB, aNewCoordinatePair);
     133             :                 }
     134             :                 else
     135             :                 {
     136             :                     // add edge
     137           0 :                     aNewPolygon.append(aNewCoordinatePair);
     138             :                 }
     139             :             }
     140             : 
     141             :             // next sequence
     142           0 :             pInnerSequence++;
     143           0 :             pInnerSequenceFlags++;
     144             : 
     145             :             // #i72807# API import uses old line start/end-equal definition for closed,
     146             :             // so we need to correct this to closed state here
     147           0 :             basegfx::tools::checkClosed(aNewPolygon);
     148             : 
     149             :             // add new subpolygon
     150           0 :             aNewPolyPolygon.append(aNewPolygon);
     151           0 :         }
     152             : 
     153           0 :         return aNewPolyPolygon;
     154             :     }
     155             : 
     156             : 
     157             : 
     158           0 :     void b2DPolyPolygonToPolyPolygonBezier( const basegfx::B2DPolyPolygon& rPolyPoly,
     159             :                                             drawing::PolyPolygonBezierCoords& rRetval )
     160             :     {
     161           0 :         rRetval.Coordinates.realloc(rPolyPoly.count());
     162           0 :         rRetval.Flags.realloc(rPolyPoly.count());
     163             : 
     164           0 :         drawing::PointSequence* pOuterSequence = rRetval.Coordinates.getArray();
     165           0 :         drawing::FlagSequence*  pOuterFlags = rRetval.Flags.getArray();
     166             : 
     167           0 :         for(sal_uInt32 a=0;a<rPolyPoly.count();a++)
     168             :         {
     169           0 :             const B2DPolygon& rPoly = rPolyPoly.getB2DPolygon(a);
     170           0 :             sal_uInt32 nCount(rPoly.count());
     171           0 :             const bool bClosed(rPoly.isClosed());
     172             : 
     173             :             // calculate input vertex count
     174           0 :             const sal_uInt32 nLoopCount(bClosed ? nCount : (nCount ? nCount - 1L : 0L ));
     175             : 
     176           0 :             std::vector<awt::Point> aPoints; aPoints.reserve(nLoopCount);
     177           0 :             std::vector<drawing::PolygonFlags> aFlags; aFlags.reserve(nLoopCount);
     178             : 
     179           0 :             if( nCount )
     180             :             {
     181             :                 // prepare insert index and current point
     182           0 :                 basegfx::B2DCubicBezier aBezier;
     183           0 :                 aBezier.setStartPoint(rPoly.getB2DPoint(0));
     184             : 
     185           0 :                 for(sal_uInt32 b(0L); b<nLoopCount; b++)
     186             :                 {
     187             :                     // add current point (always) and remember StartPointIndex for evtl. later corrections
     188           0 :                     const awt::Point aStartPoint(fround(aBezier.getStartPoint().getX()),
     189           0 :                                                  fround(aBezier.getStartPoint().getY()));
     190           0 :                     const sal_uInt32 nStartPointIndex(aPoints.size());
     191           0 :                     aPoints.push_back(aStartPoint);
     192           0 :                     aFlags.push_back(drawing::PolygonFlags_NORMAL);
     193             : 
     194             :                     // prepare next segment
     195           0 :                     const sal_uInt32 nNextIndex((b + 1) % nCount);
     196           0 :                     aBezier.setEndPoint(rPoly.getB2DPoint(nNextIndex));
     197           0 :                     aBezier.setControlPointA(rPoly.getNextControlPoint(b));
     198           0 :                     aBezier.setControlPointB(rPoly.getPrevControlPoint(nNextIndex));
     199             : 
     200           0 :                     if(aBezier.isBezier())
     201             :                     {
     202             :                         // if one is used, add always two control points due to the old schema
     203           0 :                         aPoints.push_back( awt::Point(fround(aBezier.getControlPointA().getX()),
     204           0 :                                                       fround(aBezier.getControlPointA().getY())) );
     205           0 :                         aFlags.push_back(drawing::PolygonFlags_CONTROL);
     206             : 
     207           0 :                         aPoints.push_back( awt::Point(fround(aBezier.getControlPointB().getX()),
     208           0 :                                                       fround(aBezier.getControlPointB().getY())) );
     209           0 :                         aFlags.push_back(drawing::PolygonFlags_CONTROL);
     210             :                     }
     211             : 
     212             :                     // test continuity with previous control point to set flag value
     213           0 :                     if(aBezier.getControlPointA() != aBezier.getStartPoint() && (bClosed || b))
     214             :                     {
     215           0 :                         const basegfx::B2VectorContinuity eCont(rPoly.getContinuityInPoint(b));
     216             : 
     217           0 :                         if(basegfx::CONTINUITY_C1 == eCont)
     218             :                         {
     219           0 :                             aFlags[nStartPointIndex] = drawing::PolygonFlags_SMOOTH;
     220             :                         }
     221           0 :                         else if(basegfx::CONTINUITY_C2 == eCont)
     222             :                         {
     223           0 :                             aFlags[nStartPointIndex] = drawing::PolygonFlags_SYMMETRIC;
     224             :                         }
     225             :                     }
     226             : 
     227             :                     // prepare next polygon step
     228           0 :                     aBezier.setStartPoint(aBezier.getEndPoint());
     229             :                 }
     230             : 
     231           0 :                 if(bClosed)
     232             :                 {
     233             :                     // add first point again as closing point due to old definition
     234           0 :                     aPoints.push_back( aPoints[0] );
     235           0 :                     aFlags.push_back(drawing::PolygonFlags_NORMAL);
     236             :                 }
     237             :                 else
     238             :                 {
     239             :                     // add last point as closing point
     240           0 :                     const basegfx::B2DPoint aClosingPoint(rPoly.getB2DPoint(nCount - 1L));
     241           0 :                     const awt::Point aEnd(fround(aClosingPoint.getX()),
     242           0 :                                           fround(aClosingPoint.getY()));
     243           0 :                     aPoints.push_back(aEnd);
     244           0 :                     aFlags.push_back(drawing::PolygonFlags_NORMAL);
     245           0 :                 }
     246             :             }
     247             : 
     248           0 :             *pOuterSequence++ = comphelper::containerToSequence(aPoints);
     249           0 :             *pOuterFlags++ = comphelper::containerToSequence(aFlags);
     250           0 :         }
     251           0 :     }
     252             : 
     253             : }
     254             : }
     255             : 
     256             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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