| /* |
| * 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 { |
| |
| String SVGColorProperty::valueAsString() const |
| { |
| return m_styleColor.isCurrentColor() ? "currentColor" : m_styleColor.color().serializedAsCSSComponentValue(); |
| } |
| |
| PassRefPtr<NewSVGPropertyBase> SVGColorProperty::cloneForAnimation(const String&) const |
| { |
| // SVGAnimatedColor is deprecated. So No SVG DOM animation. |
| ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| |
| static inline Color fallbackColorForCurrentColor(SVGElement* targetElement) |
| { |
| ASSERT(targetElement); |
| if (RenderObject* targetRenderer = targetElement->renderer()) |
| return targetRenderer->style()->visitedDependentColor(CSSPropertyColor); |
| else |
| return Color::transparent; |
| } |
| |
| void SVGColorProperty::add(PassRefPtr<NewSVGPropertyBase> other, SVGElement* contextElement) |
| { |
| ASSERT(contextElement); |
| |
| Color fallbackColor = fallbackColorForCurrentColor(contextElement); |
| Color fromColor = toSVGColorProperty(other)->m_styleColor.resolve(fallbackColor); |
| Color toColor = m_styleColor.resolve(fallbackColor); |
| m_styleColor = StyleColor(ColorDistance::addColors(fromColor, toColor)); |
| } |
| |
| void SVGColorProperty::calculateAnimatedValue(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, PassRefPtr<NewSVGPropertyBase> fromValue, PassRefPtr<NewSVGPropertyBase> toValue, PassRefPtr<NewSVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) |
| { |
| StyleColor fromStyleColor = toSVGColorProperty(fromValue)->m_styleColor; |
| StyleColor toStyleColor = toSVGColorProperty(toValue)->m_styleColor; |
| StyleColor toAtEndOfDurationStyleColor = toSVGColorProperty(toAtEndOfDurationValue)->m_styleColor; |
| |
| // Apply currentColor rules. |
| ASSERT(contextElement); |
| Color fallbackColor = fallbackColorForCurrentColor(contextElement); |
| Color fromColor = fromStyleColor.resolve(fallbackColor); |
| Color toColor = toStyleColor.resolve(fallbackColor); |
| Color toAtEndOfDurationColor = toAtEndOfDurationStyleColor.resolve(fallbackColor); |
| Color animatedColor = m_styleColor.resolve(fallbackColor); |
| |
| ASSERT(animationElement); |
| float animatedRed = animatedColor.red(); |
| animationElement->animateAdditiveNumber(percentage, repeatCount, fromColor.red(), toColor.red(), toAtEndOfDurationColor.red(), animatedRed); |
| |
| float animatedGreen = animatedColor.green(); |
| animationElement->animateAdditiveNumber(percentage, repeatCount, fromColor.green(), toColor.green(), toAtEndOfDurationColor.green(), animatedGreen); |
| |
| float animatedBlue = animatedColor.blue(); |
| animationElement->animateAdditiveNumber(percentage, repeatCount, fromColor.blue(), toColor.blue(), toAtEndOfDurationColor.blue(), animatedBlue); |
| |
| float animatedAlpha = animatedColor.alpha(); |
| animationElement->animateAdditiveNumber(percentage, repeatCount, fromColor.alpha(), toColor.alpha(), toAtEndOfDurationColor.alpha(), animatedAlpha); |
| |
| m_styleColor = StyleColor(makeRGBA(roundf(animatedRed), roundf(animatedGreen), roundf(animatedBlue), roundf(animatedAlpha))); |
| } |
| |
| float SVGColorProperty::calculateDistance(PassRefPtr<NewSVGPropertyBase> toValue, SVGElement* contextElement) |
| { |
| ASSERT(contextElement); |
| Color fallbackColor = fallbackColorForCurrentColor(contextElement); |
| |
| Color fromColor = m_styleColor.resolve(fallbackColor); |
| Color toColor = toSVGColorProperty(toValue)->m_styleColor.resolve(fallbackColor); |
| return ColorDistance::distance(fromColor, toColor); |
| } |
| |
| } |