third_party/WebKit/Source/core/svg/SVGComponentTransferFunctionElement.cpp

   1 /*
   2  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
   3  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public License
  16  * along with this library; see the file COPYING.LIB.  If not, write to
  17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  */
  20
  21 #include "config.h"
  22
  23 #include "core/svg/SVGComponentTransferFunctionElement.h"
  24
  25 #include "core/SVGNames.h"
  26 #include "core/dom/Attribute.h"
  27 #include "core/svg/SVGFEComponentTransferElement.h"
  28 #include "core/svg/SVGNumberList.h"
  29
  30 namespace blink {
  31
  32 template<> const SVGEnumerationStringEntries& getStaticStringEntries<ComponentTransferType>()
  33 {
  34     DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ());
  35     if (entries.isEmpty()) {
  36         entries.append(std::make_pair(FECOMPONENTTRANSFER_TYPE_IDENTITY, "identity"));
  37         entries.append(std::make_pair(FECOMPONENTTRANSFER_TYPE_TABLE, "table"));
  38         entries.append(std::make_pair(FECOMPONENTTRANSFER_TYPE_DISCRETE, "discrete"));
  39         entries.append(std::make_pair(FECOMPONENTTRANSFER_TYPE_LINEAR, "linear"));
  40         entries.append(std::make_pair(FECOMPONENTTRANSFER_TYPE_GAMMA, "gamma"));
  41     }
  42     return entries;
  43 }
  44
  45 SVGComponentTransferFunctionElement::SVGComponentTransferFunctionElement(const QualifiedName& tagName, Document& document)
  46     : SVGElement(tagName, document)
  47     , m_tableValues(SVGAnimatedNumberList::create(this, SVGNames::tableValuesAttr, SVGNumberList::create()))
  48     , m_slope(SVGAnimatedNumber::create(this, SVGNames::slopeAttr, SVGNumber::create(1)))
  49     , m_intercept(SVGAnimatedNumber::create(this, SVGNames::interceptAttr, SVGNumber::create()))
  50     , m_amplitude(SVGAnimatedNumber::create(this, SVGNames::amplitudeAttr, SVGNumber::create(1)))
  51     , m_exponent(SVGAnimatedNumber::create(this, SVGNames::exponentAttr, SVGNumber::create(1)))
  52     , m_offset(SVGAnimatedNumber::create(this, SVGNames::offsetAttr, SVGNumber::create()))
  53     , m_type(SVGAnimatedEnumeration<ComponentTransferType>::create(this, SVGNames::typeAttr, FECOMPONENTTRANSFER_TYPE_IDENTITY))
  54 {
  55     addToPropertyMap(m_tableValues);
  56     addToPropertyMap(m_slope);
  57     addToPropertyMap(m_intercept);
  58     addToPropertyMap(m_amplitude);
  59     addToPropertyMap(m_exponent);
  60     addToPropertyMap(m_offset);
  61     addToPropertyMap(m_type);
  62 }
  63
  64 DEFINE_TRACE(SVGComponentTransferFunctionElement)
  65 {
  66     visitor->trace(m_tableValues);
  67     visitor->trace(m_slope);
  68     visitor->trace(m_intercept);
  69     visitor->trace(m_amplitude);
  70     visitor->trace(m_exponent);
  71     visitor->trace(m_offset);
  72     visitor->trace(m_type);
  73     SVGElement::trace(visitor);
  74 }
  75
  76 void SVGComponentTransferFunctionElement::svgAttributeChanged(const QualifiedName& attrName)
  77 {
  78     if (attrName == SVGNames::typeAttr || attrName == SVGNames::tableValuesAttr
  79         || attrName == SVGNames::slopeAttr || attrName == SVGNames::interceptAttr
  80         || attrName == SVGNames::amplitudeAttr || attrName == SVGNames::exponentAttr
  81         || attrName == SVGNames::offsetAttr) {
  82         SVGElement::InvalidationGuard invalidationGuard(this);
  83
  84         invalidateFilterPrimitiveParent(this);
  85         return;
  86     }
  87
  88     SVGElement::svgAttributeChanged(attrName);
  89 }
  90
  91 ComponentTransferFunction SVGComponentTransferFunctionElement::transferFunction() const
  92 {
  93     ComponentTransferFunction func;
  94     func.type = m_type->currentValue()->enumValue();
  95     func.slope = m_slope->currentValue()->value();
  96     func.intercept = m_intercept->currentValue()->value();
  97     func.amplitude = m_amplitude->currentValue()->value();
  98     func.exponent = m_exponent->currentValue()->value();
  99     func.offset = m_offset->currentValue()->value();
 100     func.tableValues = m_tableValues->currentValue()->toFloatVector();
 101     return func;
 102 }
 103
 104 } // namespace blink