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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /ksvg/impl/SVGPolyElementImpl.cc
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'ksvg/impl/SVGPolyElementImpl.cc')
-rw-r--r--ksvg/impl/SVGPolyElementImpl.cc141
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diff --git a/ksvg/impl/SVGPolyElementImpl.cc b/ksvg/impl/SVGPolyElementImpl.cc
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+/*
+ 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 <math.h>
+#include <cfloat>
+
+#include <kdebug.h>
+
+#include "SVGRectImpl.h"
+#include "SVGPointListImpl.h"
+#include "SVGSVGElementImpl.h"
+#include "SVGPolyElementImpl.h"
+#include "SVGAngleImpl.h"
+
+using namespace KSVG;
+
+SVGPolyElementImpl::SVGPolyElementImpl(DOM::ElementImpl *impl) : SVGShapeImpl(impl), SVGTestsImpl(), SVGLangSpaceImpl(), SVGExternalResourcesRequiredImpl(), SVGStylableImpl(this), SVGTransformableImpl(), SVGAnimatedPointsImpl()
+{
+}
+
+SVGPolyElementImpl::~SVGPolyElementImpl()
+{
+}
+
+SVGRectImpl *SVGPolyElementImpl::getBBox()
+{
+ SVGRectImpl *ret = SVGSVGElementImpl::createSVGRect();
+
+ unsigned int nrPoints = points()->numberOfItems();
+ float minx, miny, maxx, maxy, tempx, tempy;
+ minx = points()->getItem(0)->x();
+ miny = points()->getItem(0)->y();
+ maxx = points()->getItem(0)->x();
+ maxy = points()->getItem(0)->y();
+
+ for(unsigned int i = 1; i < nrPoints; ++i)
+ {
+ tempx = points()->getItem(i)->x();
+ tempy = points()->getItem(i)->y();
+
+ if(tempx < minx)
+ minx = tempx;
+ if(tempx > maxx)
+ maxx = tempx;
+ if(tempy < miny)
+ miny = tempy;
+ if(tempy > maxy)
+ maxy = tempy;
+ }
+
+ ret->setX(minx);
+ ret->setY(miny);
+ ret->setWidth(maxx - minx);
+ ret->setHeight(maxy - miny);
+ return ret;
+}
+
+bool SVGPolyElementImpl::findOutSlope(unsigned int point, double *outSlope) const
+{
+ unsigned int nextPoint;
+
+ if(point == points()->numberOfItems() - 1)
+ {
+ if(m_isOpenPath)
+ return false;
+ else
+ nextPoint = 0;
+ }
+ else
+ nextPoint = point + 1;
+
+ if(point == nextPoint)
+ return false;
+
+ double x = points()->getItem(point)->x();
+ double y = points()->getItem(point)->y();
+ double nextX = points()->getItem(nextPoint)->x();
+ double nextY = points()->getItem(nextPoint)->y();
+ const double epsilon = DBL_EPSILON;
+
+ if(fabs(x - nextX) < epsilon && fabs(y - nextY) < epsilon)
+ return findOutSlope(nextPoint, outSlope);
+ else
+ {
+ double slope = SVGAngleImpl::todeg(atan2(nextY - y, nextX - x));
+ *outSlope = slope;
+ return true;
+ }
+}
+
+bool SVGPolyElementImpl::findInSlope(unsigned int point, double *inSlope) const
+{
+ unsigned int prevPoint;
+
+ if(point == 0)
+ {
+ if(m_isOpenPath)
+ return false;
+ else
+ prevPoint = points()->numberOfItems() - 1;
+ }
+ else
+ prevPoint = point - 1;
+
+ if(point == prevPoint)
+ return false;
+
+ double x = points()->getItem(point)->x();
+ double y = points()->getItem(point)->y();
+ double prevX = points()->getItem(prevPoint)->x();
+ double prevY = points()->getItem(prevPoint)->y();
+ const double epsilon = DBL_EPSILON;
+
+ if(fabs(x - prevX) < epsilon && fabs(y - prevY) < epsilon)
+ return findInSlope(prevPoint, inSlope);
+ else
+ {
+ double slope = SVGAngleImpl::todeg(atan2(y - prevY, x - prevX));
+ *inSlope = slope;
+ return true;
+ }
+}
+
+// vim:ts=4:noet