Home | History | Annotate | Download | only in svg 
      1 /*
      2     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org>
      3                   2004, 2005, 2006 Rob Buis <buis (at) 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 #if ENABLE(SVG) && ENABLE(FILTERS)
     24 #include "SVGFECompositeElement.h"
     25 
     26 #include "MappedAttribute.h"
     27 #include "SVGNames.h"
     28 #include "SVGResourceFilter.h"
     29 
     30 namespace WebCore {
     31 
     32 SVGFECompositeElement::SVGFECompositeElement(const QualifiedName& tagName, Document* doc)
     33     : SVGFilterPrimitiveStandardAttributes(tagName, doc)
     34     , m__operator(FECOMPOSITE_OPERATOR_OVER)
     35 {
     36 }
     37 
     38 SVGFECompositeElement::~SVGFECompositeElement()
     39 {
     40 }
     41 
     42 void SVGFECompositeElement::parseMappedAttribute(MappedAttribute *attr)
     43 {
     44     const String& value = attr->value();
     45     if (attr->name() == SVGNames::operatorAttr) {
     46         if (value == "over")
     47             set_operatorBaseValue(FECOMPOSITE_OPERATOR_OVER);
     48         else if (value == "in")
     49             set_operatorBaseValue(FECOMPOSITE_OPERATOR_IN);
     50         else if (value == "out")
     51             set_operatorBaseValue(FECOMPOSITE_OPERATOR_OUT);
     52         else if (value == "atop")
     53             set_operatorBaseValue(FECOMPOSITE_OPERATOR_ATOP);
     54         else if (value == "xor")
     55             set_operatorBaseValue(FECOMPOSITE_OPERATOR_XOR);
     56         else if (value == "arithmetic")
     57             set_operatorBaseValue(FECOMPOSITE_OPERATOR_ARITHMETIC);
     58     } else if (attr->name() == SVGNames::inAttr)
     59         setIn1BaseValue(value);
     60     else if (attr->name() == SVGNames::in2Attr)
     61         setIn2BaseValue(value);
     62     else if (attr->name() == SVGNames::k1Attr)
     63         setK1BaseValue(value.toFloat());
     64     else if (attr->name() == SVGNames::k2Attr)
     65         setK2BaseValue(value.toFloat());
     66     else if (attr->name() == SVGNames::k3Attr)
     67         setK3BaseValue(value.toFloat());
     68     else if (attr->name() == SVGNames::k4Attr)
     69         setK4BaseValue(value.toFloat());
     70     else
     71         SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
     72 }
     73 
     74 void SVGFECompositeElement::synchronizeProperty(const QualifiedName& attrName)
     75 {
     76     SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);
     77 
     78     if (attrName == anyQName()) {
     79         synchronize_operator();
     80         synchronizeIn1();
     81         synchronizeIn2();
     82         synchronizeK1();
     83         synchronizeK2();
     84         synchronizeK3();
     85         synchronizeK4();
     86         return;
     87     }
     88 
     89     if (attrName == SVGNames::operatorAttr)
     90         synchronize_operator();
     91     else if (attrName == SVGNames::inAttr)
     92         synchronizeIn1();
     93     else if (attrName == SVGNames::in2Attr)
     94         synchronizeIn2();
     95     else if (attrName == SVGNames::k1Attr)
     96         synchronizeK1();
     97     else if (attrName == SVGNames::k2Attr)
     98         synchronizeK2();
     99     else if (attrName == SVGNames::k3Attr)
    100         synchronizeK3();
    101     else if (attrName == SVGNames::k4Attr)
    102         synchronizeK4();
    103 }
    104 
    105 bool SVGFECompositeElement::build(SVGResourceFilter* filterResource)
    106 {
    107     FilterEffect* input1 = filterResource->builder()->getEffectById(in1());
    108     FilterEffect* input2 = filterResource->builder()->getEffectById(in2());
    109 
    110     if (!input1 || !input2)
    111         return false;
    112 
    113     RefPtr<FilterEffect> effect = FEComposite::create(input1, input2, static_cast<CompositeOperationType>(_operator()),
    114                                         k1(), k2(), k3(), k4());
    115     filterResource->addFilterEffect(this, effect.release());
    116 
    117     return true;
    118 }
    119 
    120 }
    121 
    122 #endif // ENABLE(SVG)
    123