WebCore/svg/SVGFEColorMatrixElement.cpp

   1 /*
   2     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005, 2006 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
  25 #if ENABLE(SVG) && ENABLE(SVG_FILTERS)
  26 #include "SVGFEColorMatrixElement.h"
  27
  28 #include "SVGNames.h"
  29 #include "SVGNumberList.h"
  30 #include "SVGResourceFilter.h"
  31
  32 namespace WebCore {
  33
  34 SVGFEColorMatrixElement::SVGFEColorMatrixElement(const QualifiedName& tagName, Document* doc)
  35     : SVGFilterPrimitiveStandardAttributes(tagName, doc)
  36     , m_in1(this, SVGNames::inAttr)
  37     , m_type(this, SVGNames::typeAttr, FECOLORMATRIX_TYPE_UNKNOWN)
  38     , m_values(this, SVGNames::valuesAttr, SVGNumberList::create(SVGNames::valuesAttr))
  39     , m_filterEffect(0)
  40 {
  41 }
  42
  43 SVGFEColorMatrixElement::~SVGFEColorMatrixElement()
  44 {
  45 }
  46
  47 void SVGFEColorMatrixElement::parseMappedAttribute(MappedAttribute* attr)
  48 {
  49     const String& value = attr->value();
  50     if (attr->name() == SVGNames::typeAttr) {
  51         if (value == "matrix")
  52             setTypeBaseValue(FECOLORMATRIX_TYPE_MATRIX);
  53         else if (value == "saturate")
  54             setTypeBaseValue(FECOLORMATRIX_TYPE_SATURATE);
  55         else if (value == "hueRotate")
  56             setTypeBaseValue(FECOLORMATRIX_TYPE_HUEROTATE);
  57         else if (value == "luminanceToAlpha")
  58             setTypeBaseValue(FECOLORMATRIX_TYPE_LUMINANCETOALPHA);
  59     }
  60     else if (attr->name() == SVGNames::inAttr)
  61         setIn1BaseValue(value);
  62     else if (attr->name() == SVGNames::valuesAttr)
  63         valuesBaseValue()->parse(value);
  64     else
  65         SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
  66 }
  67
  68 SVGFilterEffect* SVGFEColorMatrixElement::filterEffect(SVGResourceFilter* filter) const
  69 {
  70     ASSERT_NOT_REACHED();
  71     return 0;
  72 }
  73
  74 bool SVGFEColorMatrixElement::build(FilterBuilder* builder)
  75 {
  76     FilterEffect* input1 = builder->getEffectById(in1());
  77
  78     if(!input1)
  79         return false;
  80
  81     Vector<float> _values;
  82     SVGNumberList* numbers = values();
  83
  84     ExceptionCode ec = 0;
  85     unsigned int nr = numbers->numberOfItems();
  86     for (unsigned int i = 0;i < nr;i++)
  87         _values.append(numbers->getItem(i, ec));
  88
  89     builder->add(result(), FEColorMatrix::create(input1, static_cast<ColorMatrixType> (type()), _values));
  90
  91     return true;
  92 }
  93
  94 } //namespace WebCore
  95
  96 #endif // ENABLE(SVG)