| /* |
| * Copyright (C) Research In Motion Limited 2011. All rights reserved. |
| * |
| * 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" |
| |
| #include "core/svg/SVGAnimatedColor.h" |
| |
| #include "core/rendering/RenderObject.h" |
| #include "core/svg/ColorDistance.h" |
| #include "core/svg/SVGAnimateElement.h" |
| #include "core/svg/SVGColor.h" |
| |
| namespace WebCore { |
| |
| SVGAnimatedColorAnimator::SVGAnimatedColorAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement) |
| : SVGAnimatedTypeAnimator(AnimatedColor, animationElement, contextElement) |
| { |
| } |
| |
| PassOwnPtr<SVGAnimatedType> SVGAnimatedColorAnimator::constructFromString(const String& string) |
| { |
| OwnPtr<SVGAnimatedType> animtedType = SVGAnimatedType::createColor(new Color); |
| animtedType->color() = string.isEmpty() ? Color() : SVGColor::colorFromRGBColorString(string); |
| return animtedType.release(); |
| } |
| |
| void SVGAnimatedColorAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to) |
| { |
| ASSERT(from->type() == AnimatedColor); |
| ASSERT(from->type() == to->type()); |
| to->color() = ColorDistance::addColors(from->color(), to->color()); |
| } |
| |
| static inline void adjustForCurrentColor(SVGElement* targetElement, Color& color) |
| { |
| ASSERT(targetElement); |
| |
| if (RenderObject* targetRenderer = targetElement->renderer()) |
| color = targetRenderer->style()->visitedDependentColor(CSSPropertyColor); |
| else |
| color = Color(); |
| } |
| |
| static Color parseColorFromString(SVGAnimationElement*, const String& string) |
| { |
| return SVGColor::colorFromRGBColorString(string); |
| } |
| |
| void SVGAnimatedColorAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated) |
| { |
| ASSERT(m_animationElement); |
| ASSERT(m_contextElement); |
| |
| Color fromColor = m_animationElement->animationMode() == ToAnimation ? animated->color() : from->color(); |
| Color toColor = to->color(); |
| const Color& toAtEndOfDurationColor = toAtEndOfDuration->color(); |
| Color& animatedColor = animated->color(); |
| |
| // Apply CSS inheritance rules. |
| m_animationElement->adjustForInheritance<Color>(parseColorFromString, m_animationElement->fromPropertyValueType(), fromColor, m_contextElement); |
| m_animationElement->adjustForInheritance<Color>(parseColorFromString, m_animationElement->toPropertyValueType(), toColor, m_contextElement); |
| |
| // Apply <animateColor> rules. |
| if (m_animationElement->fromPropertyValueType() == CurrentColorValue) |
| adjustForCurrentColor(m_contextElement, fromColor); |
| if (m_animationElement->toPropertyValueType() == CurrentColorValue) |
| adjustForCurrentColor(m_contextElement, toColor); |
| |
| float animatedRed = animatedColor.red(); |
| m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromColor.red(), toColor.red(), toAtEndOfDurationColor.red(), animatedRed); |
| |
| float animatedGreen = animatedColor.green(); |
| m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromColor.green(), toColor.green(), toAtEndOfDurationColor.green(), animatedGreen); |
| |
| float animatedBlue = animatedColor.blue(); |
| m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromColor.blue(), toColor.blue(), toAtEndOfDurationColor.blue(), animatedBlue); |
| |
| float animatedAlpha = animatedColor.alpha(); |
| m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromColor.alpha(), toColor.alpha(), toAtEndOfDurationColor.alpha(), animatedAlpha); |
| |
| animatedColor = ColorDistance::clampColor(static_cast<int>(roundf(animatedRed)), static_cast<int>(roundf(animatedGreen)), static_cast<int>(roundf(animatedBlue)), static_cast<int>(roundf(animatedAlpha))); |
| } |
| |
| float SVGAnimatedColorAnimator::calculateDistance(const String& fromString, const String& toString) |
| { |
| ASSERT(m_contextElement); |
| Color from = SVGColor::colorFromRGBColorString(fromString); |
| if (!from.isValid()) |
| return -1; |
| Color to = SVGColor::colorFromRGBColorString(toString); |
| if (!to.isValid()) |
| return -1; |
| return ColorDistance(from, to).distance(); |
| } |
| |
| } |