khtml/svg/SVGFEDisplacementMapElement.cpp

   1 /*
   2  Copyright (C) 2006 Oliver Hunt <oliver@nerget.com>
   3
   4  This library is free software; you can redistribute it and/or
   5  modify it under the terms of the GNU Library General Public
   6  License as published by the Free Software Foundation; either
   7  version 2 of the License, or (at your option) any later version.
   8
   9  This library is distributed in the hope that it will be useful,
  10  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  Library General Public License for more details.
  13
  14  You should have received a copy of the GNU Library General Public License
  15  along with this library; see the file COPYING.LIB.  If not, write to
  16  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  Boston, MA 02110-1301, USA.
  18  */
  19
  20
  21 #include "config.h"
  22
  23 #if ENABLE(SVG) && ENABLE(SVG_FILTERS)
  24 #include "SVGFEDisplacementMapElement.h"
  25
  26 #include "SVGResourceFilter.h"
  27
  28 namespace WebCore {
  29
  30 SVGFEDisplacementMapElement::SVGFEDisplacementMapElement(const QualifiedName& tagName, Document* doc)
  31     : SVGFilterPrimitiveStandardAttributes(tagName, doc)
  32     , m_xChannelSelector(SVG_CHANNEL_A)
  33     , m_yChannelSelector(SVG_CHANNEL_A)
  34     , m_scale(0.0f)
  35     , m_filterEffect(0)
  36 {
  37 }
  38
  39 SVGFEDisplacementMapElement::~SVGFEDisplacementMapElement()
  40 {
  41     delete m_filterEffect;
  42 }
  43
  44 ANIMATED_PROPERTY_DEFINITIONS(SVGFEDisplacementMapElement, String, String, string, In1, in1, SVGNames::inAttr, m_in1)
  45 ANIMATED_PROPERTY_DEFINITIONS(SVGFEDisplacementMapElement, String, String, string, In2, in2, SVGNames::in2Attr, m_in2)
  46 ANIMATED_PROPERTY_DEFINITIONS(SVGFEDisplacementMapElement, int, Enumeration, enumeration, XChannelSelector, xChannelSelector, SVGNames::xChannelSelectorAttr, m_xChannelSelector)
  47 ANIMATED_PROPERTY_DEFINITIONS(SVGFEDisplacementMapElement, int, Enumeration, enumeration, YChannelSelector, yChannelSelector, SVGNames::yChannelSelectorAttr, m_yChannelSelector)
  48 ANIMATED_PROPERTY_DEFINITIONS(SVGFEDisplacementMapElement, float, Number, number, Scale, scale, SVGNames::scaleAttr, m_scale)
  49
  50 SVGChannelSelectorType SVGFEDisplacementMapElement::stringToChannel(const String& key)
  51 {
  52     if (key == "R")
  53         return SVG_CHANNEL_R;
  54     else if (key == "G")
  55         return SVG_CHANNEL_G;
  56     else if (key == "B")
  57         return SVG_CHANNEL_B;
  58     else if (key == "A")
  59         return SVG_CHANNEL_A;
  60
  61     return SVG_CHANNEL_UNKNOWN;
  62 }
  63
  64 void SVGFEDisplacementMapElement::parseMappedAttribute(MappedAttribute* attr)
  65 {
  66     const String& value = attr->value();
  67     if (attr->name() == SVGNames::xChannelSelectorAttr)
  68         setXChannelSelectorBaseValue(stringToChannel(value));
  69     else if (attr->name() == SVGNames::yChannelSelectorAttr)
  70         setYChannelSelectorBaseValue(stringToChannel(value));
  71     else if (attr->name() == SVGNames::inAttr)
  72         setIn1BaseValue(value);
  73     else if (attr->name() == SVGNames::in2Attr)
  74         setIn2BaseValue(value);
  75     else if (attr->name() == SVGNames::scaleAttr)
  76         setScaleBaseValue(value.toFloat());
  77     else
  78         SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
  79 }
  80
  81 SVGFEDisplacementMap* SVGFEDisplacementMapElement::filterEffect(SVGResourceFilter* filter) const
  82 {
  83     if (!m_filterEffect)
  84         m_filterEffect = new SVGFEDisplacementMap(filter);
  85
  86     m_filterEffect->setXChannelSelector((SVGChannelSelectorType) xChannelSelector());
  87     m_filterEffect->setYChannelSelector((SVGChannelSelectorType) yChannelSelector());
  88     m_filterEffect->setIn(in1());
  89     m_filterEffect->setIn2(in2());
  90     m_filterEffect->setScale(scale());
  91
  92     setStandardAttributes(m_filterEffect);
  93     return m_filterEffect;
  94 }
  95
  96 }
  97
  98 #endif // ENABLE(SVG)
  99
 100 // vim:ts=4:noet