diff options
Diffstat (limited to 'ksvg/impl/SVGPolylineElementImpl.cpp')
-rw-r--r-- | ksvg/impl/SVGPolylineElementImpl.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/ksvg/impl/SVGPolylineElementImpl.cpp b/ksvg/impl/SVGPolylineElementImpl.cpp new file mode 100644 index 00000000..487f2630 --- /dev/null +++ b/ksvg/impl/SVGPolylineElementImpl.cpp @@ -0,0 +1,98 @@ +/* + Copyright (C) 2001-2003 KSVG Team + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include "SVGPointListImpl.h" +#include "SVGPolylineElementImpl.h" +#include "SVGDocumentImpl.h" +#include "KSVGCanvas.h" +#include "SVGAngleImpl.h" + +using namespace KSVG; + +SVGPolylineElementImpl::SVGPolylineElementImpl(DOM::ElementImpl *impl) : SVGPolyElementImpl(impl) +{ + m_isOpenPath = true; +} + +void SVGPolylineElementImpl::createItem(KSVGCanvas *c) +{ + if(!c) + c = ownerDoc()->canvas(); + + if(!m_item) + { + m_item = c->createPolyline(this); + c->insert(m_item); + } +} + +void SVGPolylineElementImpl::drawMarkers() +{ + SVGPointListImpl *pts = points(); + unsigned int nrPoints = pts->numberOfItems(); + + if(nrPoints > 0 && hasMarkers()) + { + if(hasStartMarker()) + { + double outSlope; + + if(!findOutSlope(0, &outSlope)) + outSlope = 0; + + doStartMarker(this, this, pts->getItem(0)->x(), pts->getItem(0)->y(), outSlope); + } + + if(hasMidMarker()) + { + for(unsigned int i = 1; i < nrPoints - 1; ++i) + { + double inSlope; + double outSlope; + bool haveInSlope = findInSlope(i, &inSlope); + bool haveOutSlope = findOutSlope(i, &outSlope); + + if(!haveInSlope && haveOutSlope) + inSlope = outSlope; + else if(haveInSlope && !haveOutSlope) + outSlope = inSlope; + else if(!haveInSlope && !haveOutSlope) + { + inSlope = 0; + outSlope = 0; + } + + double bisector = SVGAngleImpl::shortestArcBisector(inSlope, outSlope); + + doMidMarker(this, this, pts->getItem(i)->x(), pts->getItem(i)->y(), bisector); + } + } + + if(hasEndMarker()) + { + double inSlope; + + if(!findInSlope(nrPoints - 1, &inSlope)) + inSlope = 0; + + doEndMarker(this, this, pts->getItem(nrPoints - 1)->x(), pts->getItem(nrPoints - 1)->y(), inSlope); + } + } +} |