You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
2.5 KiB
101 lines
2.5 KiB
15 years ago
|
/*
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// vim:ts=4:noet
|