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      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 #include "core/svg/SVGAnimatedInteger.h"
     22 
     23 #include "core/svg/SVGAnimateElement.h"
     24 #include "core/svg/SVGAnimatedNumber.h"
     25 #include "wtf/MathExtras.h"
     26 
     27 namespace WebCore {
     28 
     29 SVGAnimatedIntegerAnimator::SVGAnimatedIntegerAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
     30     : SVGAnimatedTypeAnimator(AnimatedInteger, animationElement, contextElement)
     31 {
     32 }
     33 
     34 PassOwnPtr<SVGAnimatedType> SVGAnimatedIntegerAnimator::constructFromString(const String& string)
     35 {
     36     OwnPtr<SVGAnimatedType> animtedType = SVGAnimatedType::createInteger(new int);
     37     animtedType->integer() = string.toIntStrict();
     38     return animtedType.release();
     39 }
     40 
     41 PassOwnPtr<SVGAnimatedType> SVGAnimatedIntegerAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
     42 {
     43     return SVGAnimatedType::createInteger(constructFromBaseValue<SVGAnimatedInteger>(animatedTypes));
     44 }
     45 
     46 void SVGAnimatedIntegerAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
     47 {
     48     stopAnimValAnimationForType<SVGAnimatedInteger>(animatedTypes);
     49 }
     50 
     51 void SVGAnimatedIntegerAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type)
     52 {
     53     resetFromBaseValue<SVGAnimatedInteger>(animatedTypes, type, &SVGAnimatedType::integer);
     54 }
     55 
     56 void SVGAnimatedIntegerAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes)
     57 {
     58     animValWillChangeForType<SVGAnimatedInteger>(animatedTypes);
     59 }
     60 
     61 void SVGAnimatedIntegerAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes)
     62 {
     63     animValDidChangeForType<SVGAnimatedInteger>(animatedTypes);
     64 }
     65 
     66 void SVGAnimatedIntegerAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to)
     67 {
     68     ASSERT(from->type() == AnimatedInteger);
     69     ASSERT(from->type() == to->type());
     70 
     71     to->integer() += from->integer();
     72 }
     73 
     74 void SVGAnimatedIntegerAnimator::calculateAnimatedInteger(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, int fromInteger, int toInteger, int toAtEndOfDurationInteger, int& animatedInteger)
     75 {
     76     float animatedNumber = animatedInteger;
     77     animationElement->animateAdditiveNumber(percentage, repeatCount, fromInteger, toInteger, toAtEndOfDurationInteger, animatedNumber);
     78     animatedInteger = static_cast<int>(roundf(animatedNumber));
     79 }
     80 
     81 void SVGAnimatedIntegerAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated)
     82 {
     83     ASSERT(m_animationElement);
     84     ASSERT(m_contextElement);
     85 
     86     int fromInteger = m_animationElement->animationMode() == ToAnimation ? animated->integer() : from->integer();
     87     int toInteger = to->integer();
     88     int toAtEndOfDurationInteger = toAtEndOfDuration->integer();
     89     int& animatedInteger = animated->integer();
     90 
     91     calculateAnimatedInteger(m_animationElement, percentage, repeatCount, fromInteger, toInteger, toAtEndOfDurationInteger, animatedInteger);
     92 }
     93 
     94 float SVGAnimatedIntegerAnimator::calculateDistance(const String& fromString, const String& toString)
     95 {
     96     ASSERT(m_contextElement);
     97     int from = fromString.toIntStrict();
     98     int to = toString.toIntStrict();
     99     return abs(to - from);
    100 }
    101 
    102 }
    103