code.vuplus.com Git - vuplus_webkit/blob - Source/WebCore/svg/SVGAnimatedNumberOptionalNumber.cpp

   1 /*
   2  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
   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 #include "config.h"
  21
  22 #if ENABLE(SVG) && ENABLE(SVG_ANIMATION)
  23 #include "SVGAnimatedNumberOptionalNumber.h"
  24
  25 #include "SVGAnimateElement.h"
  26 #include "SVGAnimatedNumber.h"
  27 #include "SVGParserUtilities.h"
  28
  29 using namespace std;
  30
  31 namespace WebCore {
  32
  33 SVGAnimatedNumberOptionalNumberAnimator::SVGAnimatedNumberOptionalNumberAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
  34     : SVGAnimatedTypeAnimator(AnimatedNumberOptionalNumber, animationElement, contextElement)
  35 {
  36 }
  37
  38 PassOwnPtr<SVGAnimatedType> SVGAnimatedNumberOptionalNumberAnimator::constructFromString(const String& string)
  39 {
  40     OwnPtr<SVGAnimatedType> animtedType = SVGAnimatedType::createNumberOptionalNumber(new pair<float, float>);
  41     pair<float, float>& animatedNumber = animtedType->numberOptionalNumber();
  42     if (!parseNumberOptionalNumber(string, animatedNumber.first, animatedNumber.second)) {
  43         animatedNumber.first = 0;
  44         animatedNumber.second = 0;
  45     }
  46     return animtedType.release();
  47 }
  48
  49 void SVGAnimatedNumberOptionalNumberAnimator::calculateFromAndToValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& toString)
  50 {
  51     ASSERT(m_contextElement);
  52     ASSERT(m_animationElement);
  53     SVGAnimateElement* animationElement = static_cast<SVGAnimateElement*>(m_animationElement);
  54     animationElement->determinePropertyValueTypes(fromString, toString);
  55
  56     from = constructFromString(fromString);
  57     to = constructFromString(toString);
  58 }
  59
  60 void SVGAnimatedNumberOptionalNumberAnimator::calculateFromAndByValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& byString)
  61 {
  62     ASSERT(m_contextElement);
  63     ASSERT(m_animationElement);
  64     SVGAnimateElement* animationElement = static_cast<SVGAnimateElement*>(m_animationElement);
  65     animationElement->determinePropertyValueTypes(fromString, byString);
  66
  67     from = constructFromString(fromString);
  68     to = constructFromString(byString);
  69
  70     pair<float, float>& fromNumberPair = from->numberOptionalNumber();
  71     pair<float, float>& toNumberPair = to->numberOptionalNumber();
  72
  73     toNumberPair.first += fromNumberPair.first;
  74     toNumberPair.second += fromNumberPair.second;
  75 }
  76
  77 void SVGAnimatedNumberOptionalNumberAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount,
  78                                                        OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, OwnPtr<SVGAnimatedType>& animated)
  79 {
  80     ASSERT(m_animationElement);
  81     ASSERT(m_contextElement);
  82
  83     SVGAnimateElement* animationElement = static_cast<SVGAnimateElement*>(m_animationElement);
  84     AnimationMode animationMode = animationElement->animationMode();
  85
  86     // To animation uses contributions from the lower priority animations as the base value.
  87     pair<float, float>& fromNumberPair = from->numberOptionalNumber();
  88     pair<float, float>& animatedNumberPair = animated->numberOptionalNumber();
  89     if (animationMode == ToAnimation)
  90         fromNumberPair = animatedNumberPair;
  91
  92     pair<float, float>& toNumberPair = to->numberOptionalNumber();
  93     SVGAnimatedNumberAnimator::calculateAnimatedNumber(animationElement, percentage, repeatCount, animatedNumberPair.first, fromNumberPair.first, toNumberPair.first);
  94     SVGAnimatedNumberAnimator::calculateAnimatedNumber(animationElement, percentage, repeatCount, animatedNumberPair.second, fromNumberPair.second, toNumberPair.second);
  95 }
  96
  97 float SVGAnimatedNumberOptionalNumberAnimator::calculateDistance(const String&, const String&)
  98 {
  99     // FIXME: Distance calculation is not possible for SVGNumberOptionalNumber right now. We need the distance for every single value.
 100     return -1;
 101 }
 102
 103 }
 104
 105 #endif // ENABLE(SVG) && ENABLE(SVG_ANIMATION)