| /* |
| Copyright (C) 2004, 2005 Nikolas Zimmermann <wildfox@kde.org> |
| 2004, 2005, 2006 Rob Buis <buis@kde.org> |
| Copyright (C) 2007 Eric Seidel <eric@webkit.org> |
| |
| This file is part of the KDE project |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public License |
| along with this library; see the file COPYING.LIB. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #if ENABLE(SVG) |
| #include "SVGAnimateColorElement.h" |
| |
| #include "Document.h" |
| #include "TimeScheduler.h" |
| #include "PlatformString.h" |
| #include "SVGColor.h" |
| #include "SVGSVGElement.h" |
| #include <math.h> |
| #include <wtf/MathExtras.h> |
| |
| namespace WebCore { |
| |
| SVGAnimateColorElement::SVGAnimateColorElement(const QualifiedName& tagName, Document* doc) |
| : SVGAnimationElement(tagName, doc) |
| { |
| } |
| |
| SVGAnimateColorElement::~SVGAnimateColorElement() |
| { |
| } |
| |
| bool SVGAnimateColorElement::updateAnimationBaseValueFromElement() |
| { |
| m_baseColor = SVGColor::colorFromRGBColorString(targetAttributeAnimatedValue()); |
| m_fromColor = Color(); |
| m_toColor = Color(); |
| return true; |
| } |
| |
| void SVGAnimateColorElement::applyAnimatedValueToElement() |
| { |
| if (isAdditive()) |
| setTargetAttributeAnimatedValue(ColorDistance::addColorsAndClamp(m_baseColor, m_animatedColor).name()); |
| else |
| setTargetAttributeAnimatedValue(m_animatedColor.name()); |
| } |
| |
| bool SVGAnimateColorElement::updateAnimatedValue(EAnimationMode animationMode, float timePercentage, unsigned valueIndex, float percentagePast) |
| { |
| if (animationMode == TO_ANIMATION) |
| // to-animations have a special equation: value = (to - base) * (time/duration) + base |
| m_animatedColor = ColorDistance(m_baseColor, m_toColor).scaledDistance(timePercentage).addToColorAndClamp(m_baseColor); |
| else |
| m_animatedColor = ColorDistance(m_fromColor, m_toColor).scaledDistance(percentagePast).addToColorAndClamp(m_fromColor); |
| return (m_animatedColor != m_baseColor); |
| } |
| |
| bool SVGAnimateColorElement::calculateFromAndToValues(EAnimationMode animationMode, unsigned valueIndex) |
| { |
| switch (animationMode) { |
| case FROM_TO_ANIMATION: |
| m_fromColor = SVGColor::colorFromRGBColorString(m_from); |
| // fall through |
| case TO_ANIMATION: |
| m_toColor = SVGColor::colorFromRGBColorString(m_to); |
| break; |
| case FROM_BY_ANIMATION: |
| m_fromColor = SVGColor::colorFromRGBColorString(m_from); |
| m_toColor = SVGColor::colorFromRGBColorString(m_by); |
| break; |
| case BY_ANIMATION: |
| m_fromColor = SVGColor::colorFromRGBColorString(m_from); |
| m_toColor = ColorDistance::addColorsAndClamp(m_fromColor, SVGColor::colorFromRGBColorString(m_by)); |
| break; |
| case VALUES_ANIMATION: |
| m_fromColor = SVGColor::colorFromRGBColorString(m_values[valueIndex]); |
| m_toColor = ((valueIndex + 1) < m_values.size()) ? SVGColor::colorFromRGBColorString(m_values[valueIndex + 1]) : m_fromColor; |
| break; |
| case NO_ANIMATION: |
| ASSERT_NOT_REACHED(); |
| } |
| |
| return true; |
| } |
| |
| } |
| |
| // vim:ts=4:noet |
| #endif // ENABLE(SVG) |
| |