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Diffstat (limited to 'svx/source/svdraw/polypolygoneditor.cxx')
| -rw-r--r-- | svx/source/svdraw/polypolygoneditor.cxx | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/svx/source/svdraw/polypolygoneditor.cxx b/svx/source/svdraw/polypolygoneditor.cxx new file mode 100644 index 000000000000..804f39957938 --- /dev/null +++ b/svx/source/svdraw/polypolygoneditor.cxx @@ -0,0 +1,190 @@ +/************************************************************************* + * + * 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_svx.hxx" + +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> + +#include "svx/polypolygoneditor.hxx" + +namespace sdr { + +PolyPolygonEditor::PolyPolygonEditor( const basegfx::B2DPolyPolygon& rPolyPolygon, bool bClosed ) +: maPolyPolygon( rPolyPolygon ) +, mbIsClosed( bClosed ) +{ +} + +bool PolyPolygonEditor::DeletePoints( const std::set< sal_uInt16 >& rAbsPoints ) +{ + bool bPolyPolyChanged = false; + + std::set< sal_uInt16 >::const_reverse_iterator aIter;( rAbsPoints.rbegin() ); + for( aIter = rAbsPoints.rbegin(); aIter != rAbsPoints.rend(); aIter++ ) + { + sal_uInt32 nPoly, nPnt; + if( GetRelativePolyPoint(maPolyPolygon,(*aIter), nPoly, nPnt) ) + { + // remove point + basegfx::B2DPolygon aCandidate(maPolyPolygon.getB2DPolygon(nPoly)); + + aCandidate.remove(nPnt); + + if( ( mbIsClosed && aCandidate.count() < 3L) || (aCandidate.count() < 2L) ) + { + maPolyPolygon.remove(nPoly); + } + else + { + maPolyPolygon.setB2DPolygon(nPoly, aCandidate); + } + + bPolyPolyChanged = true; + } + } + + return bPolyPolyChanged; +} + +bool PolyPolygonEditor::SetSegmentsKind(SdrPathSegmentKind eKind, const std::set< sal_uInt16 >& rAbsPoints ) +{ + bool bPolyPolyChanged = false; + + std::set< sal_uInt16 >::const_reverse_iterator aIter;( rAbsPoints.rbegin() ); + for( aIter = rAbsPoints.rbegin(); aIter != rAbsPoints.rend(); aIter++ ) + { + sal_uInt32 nPolyNum, nPntNum; + + if(PolyPolygonEditor::GetRelativePolyPoint(maPolyPolygon, (*aIter), nPolyNum, nPntNum)) + { + // do change at aNewPolyPolygon. Take a look at edge. + basegfx::B2DPolygon aCandidate(maPolyPolygon.getB2DPolygon(nPolyNum)); + bool bCandidateChanged(false); + const sal_uInt32 nCount(aCandidate.count()); + + if(nCount && (nPntNum + 1 < nCount || aCandidate.isClosed())) + { + // it's a valid edge, check control point usage + const sal_uInt32 nNextIndex((nPntNum + 1) % nCount); + const bool bContolUsed(aCandidate.areControlPointsUsed() + && (aCandidate.isNextControlPointUsed(nPntNum) || aCandidate.isPrevControlPointUsed(nNextIndex))); + + if(bContolUsed) + { + if(SDRPATHSEGMENT_TOGGLE == eKind || SDRPATHSEGMENT_LINE == eKind) + { + // remove control + aCandidate.resetNextControlPoint(nPntNum); + aCandidate.resetPrevControlPoint(nNextIndex); + bCandidateChanged = true; + } + } + else + { + if(SDRPATHSEGMENT_TOGGLE == eKind || SDRPATHSEGMENT_CURVE == eKind) + { + // add control + const basegfx::B2DPoint aStart(aCandidate.getB2DPoint(nPntNum)); + const basegfx::B2DPoint aEnd(aCandidate.getB2DPoint(nNextIndex)); + + aCandidate.setNextControlPoint(nPntNum, interpolate(aStart, aEnd, (1.0 / 3.0))); + aCandidate.setPrevControlPoint(nNextIndex, interpolate(aStart, aEnd, (2.0 / 3.0))); + bCandidateChanged = true; + } + } + + if(bCandidateChanged) + { + maPolyPolygon.setB2DPolygon(nPolyNum, aCandidate); + bPolyPolyChanged = true; + } + } + } + } + + return bPolyPolyChanged; +} + +bool PolyPolygonEditor::SetPointsSmooth( basegfx::B2VectorContinuity eFlags, const std::set< sal_uInt16 >& rAbsPoints) +{ + bool bPolyPolygonChanged(false); + + std::set< sal_uInt16 >::const_reverse_iterator aIter;( rAbsPoints.rbegin() ); + for( aIter = rAbsPoints.rbegin(); aIter != rAbsPoints.rend(); aIter++ ) + { + sal_uInt32 nPolyNum, nPntNum; + + if(PolyPolygonEditor::GetRelativePolyPoint(maPolyPolygon, (*aIter), nPolyNum, nPntNum)) + { + // do change at aNewPolyPolygon... + basegfx::B2DPolygon aCandidate(maPolyPolygon.getB2DPolygon(nPolyNum)); + + // set continuity in point, make sure there is a curve + bool bPolygonChanged(false); + bPolygonChanged = basegfx::tools::expandToCurveInPoint(aCandidate, nPntNum); + bPolygonChanged |= basegfx::tools::setContinuityInPoint(aCandidate, nPntNum, eFlags); + + if(bPolygonChanged) + { + maPolyPolygon.setB2DPolygon(nPolyNum, aCandidate); + bPolyPolygonChanged = true; + } + } + } + + return bPolyPolygonChanged; +} + +bool PolyPolygonEditor::GetRelativePolyPoint( const basegfx::B2DPolyPolygon& rPoly, sal_uInt32 nAbsPnt, sal_uInt32& rPolyNum, sal_uInt32& rPointNum ) +{ + const sal_uInt32 nPolyCount(rPoly.count()); + sal_uInt32 nPolyNum(0L); + + while(nPolyNum < nPolyCount) + { + const sal_uInt32 nPointCount(rPoly.getB2DPolygon(nPolyNum).count()); + + if(nAbsPnt < nPointCount) + { + rPolyNum = nPolyNum; + rPointNum = nAbsPnt; + + return true; + } + else + { + nPolyNum++; + nAbsPnt -= nPointCount; + } + } + + return false; +} + +} // end of namespace sdr |