khtml/svg/SVGTransformList.cpp

   1 /*
   2     Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005 Rob Buis <buis@kde.org>
   4
   5     This file is part of the KDE project
   6
   7     This library is free software; you can redistribute it and/or
   8     modify it under the terms of the GNU Library General Public
   9     License as published by the Free Software Foundation; either
  10     version 2 of the License, or (at your option) any later version.
  11
  12     This library is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15     Library General Public License for more details.
  16
  17     You should have received a copy of the GNU Library General Public License
  18     along with this library; see the file COPYING.LIB.  If not, write to
  19     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20     Boston, MA 02110-1301, USA.
  21 */
  22
  23 #include "config.h"
  24 #include "wtf/Platform.h"
  25
  26 #if ENABLE(SVG)
  27 #include "AffineTransform.h"
  28 #include "SVGTransform.h"
  29 #include "SVGSVGElement.h"
  30 #include "SVGTransformDistance.h"
  31 #include "SVGTransformList.h"
  32
  33 using namespace WebCore;
  34
  35 SVGTransformList::SVGTransformList(const QualifiedName& attributeName)
  36     : SVGPODList<SVGTransform>(attributeName)
  37 {
  38 }
  39
  40 SVGTransformList::~SVGTransformList()
  41 {
  42 }
  43
  44 SVGTransform SVGTransformList::createSVGTransformFromMatrix(const AffineTransform& matrix) const
  45 {
  46     return SVGSVGElement::createSVGTransformFromMatrix(matrix);
  47 }
  48
  49 SVGTransform SVGTransformList::consolidate()
  50 {
  51     ExceptionCode ec = 0;
  52     return initialize(concatenate(), ec);
  53 }
  54
  55 SVGTransform SVGTransformList::concatenate() const
  56 {
  57     unsigned int length = numberOfItems();
  58     if (!length)
  59         return SVGTransform();
  60
  61     AffineTransform matrix;
  62     ExceptionCode ec = 0;
  63     for (unsigned int i = 0; i < length; i++)
  64         matrix = getItem(i, ec).matrix() * matrix;
  65
  66     return SVGTransform(matrix);
  67 }
  68
  69 SVGTransform SVGTransformList::concatenateForType(SVGTransform::SVGTransformType type) const
  70 {
  71     unsigned int length = numberOfItems();
  72     if (!length)
  73         return SVGTransform();
  74
  75     ExceptionCode ec = 0;
  76     SVGTransformDistance totalTransform;
  77     for (unsigned int i = 0; i < length; i++) {
  78         const SVGTransform& transform = getItem(i, ec);
  79         if (transform.type() == type)
  80             totalTransform.addSVGTransform(transform);
  81     }
  82
  83     return totalTransform.addToSVGTransform(SVGTransform());
  84 }
  85
  86 #endif // ENABLE(SVG)