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

1 files changed, 141 insertions, 0 deletions

diff --git a/ksvg/impl/SVGPolyElementImpl.cc b/ksvg/impl/SVGPolyElementImpl.cc
new file mode 100644
index 00000000..69ef57cd
--- /dev/null
+++ b/ksvg/impl/SVGPolyElementImpl.cc
@@ -0,0 +1,141 @@
+/*
+    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