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SVGTransformList.cpp

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00001 /*
00002     Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
00003                   2004, 2005 Rob Buis <buis@kde.org>
00004 
00005     This file is part of the KDE project
00006 
00007     This library is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU Library General Public
00009     License as published by the Free Software Foundation; either
00010     version 2 of the License, or (at your option) any later version.
00011 
00012     This library is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     Library General Public License for more details.
00016 
00017     You should have received a copy of the GNU Library General Public License
00018     along with this library; see the file COPYING.LIB.  If not, write to
00019     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00020     Boston, MA 02110-1301, USA.
00021 */
00022 
00023 #include "config.h"
00024 #include "wtf/Platform.h"
00025 
00026 #if ENABLE(SVG)
00027 #include "AffineTransform.h"
00028 #include "SVGTransform.h"
00029 #include "SVGSVGElement.h"
00030 #include "SVGTransformDistance.h"
00031 #include "SVGTransformList.h"
00032 
00033 using namespace WebCore;
00034 
00035 SVGTransformList::SVGTransformList(const QualifiedName& attributeName)
00036     : SVGPODList<SVGTransform>(attributeName)
00037 {
00038 }
00039 
00040 SVGTransformList::~SVGTransformList()
00041 {
00042 }
00043 
00044 SVGTransform SVGTransformList::createSVGTransformFromMatrix(const AffineTransform& matrix) const
00045 {
00046     return SVGSVGElement::createSVGTransformFromMatrix(matrix);
00047 }
00048 
00049 SVGTransform SVGTransformList::consolidate()
00050 {
00051     ExceptionCode ec = 0;
00052     return initialize(concatenate(), ec);
00053 }
00054 
00055 SVGTransform SVGTransformList::concatenate() const
00056 {
00057     unsigned int length = numberOfItems();
00058     if (!length)
00059         return SVGTransform();
00060         
00061     AffineTransform matrix;
00062     ExceptionCode ec = 0;
00063     for (unsigned int i = 0; i < length; i++)
00064         matrix = getItem(i, ec).matrix() * matrix;
00065 
00066     return SVGTransform(matrix);
00067 }
00068 
00069 SVGTransform SVGTransformList::concatenateForType(SVGTransform::SVGTransformType type) const
00070 {
00071     unsigned int length = numberOfItems();
00072     if (!length)
00073         return SVGTransform();
00074     
00075     ExceptionCode ec = 0;
00076     SVGTransformDistance totalTransform;
00077     for (unsigned int i = 0; i < length; i++) {
00078         const SVGTransform& transform = getItem(i, ec);
00079         if (transform.type() == type)
00080             totalTransform.addSVGTransform(transform);
00081     }
00082     
00083     return totalTransform.addToSVGTransform(SVGTransform());
00084 }
00085 
00086 #endif // ENABLE(SVG)

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