| /* |
| * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> |
| * |
| * 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/SVGLengthList.h" |
| |
| #include "bindings/v8/ExceptionStatePlaceholder.h" |
| #include "core/svg/SVGAnimationElement.h" |
| #include "core/svg/SVGParserUtilities.h" |
| #include "wtf/text/StringBuilder.h" |
| |
| namespace WebCore { |
| |
| inline PassRefPtr<SVGLengthList> toSVGLengthList(PassRefPtr<SVGPropertyBase> passBase) |
| { |
| RefPtr<SVGPropertyBase> base = passBase; |
| ASSERT(base->type() == SVGLengthList::classType()); |
| return static_pointer_cast<SVGLengthList>(base.release()); |
| } |
| |
| SVGLengthList::SVGLengthList(SVGLengthMode mode) |
| : m_mode(mode) |
| { |
| } |
| |
| SVGLengthList::~SVGLengthList() |
| { |
| } |
| |
| PassRefPtr<SVGLengthList> SVGLengthList::clone() |
| { |
| RefPtr<SVGLengthList> ret = SVGLengthList::create(m_mode); |
| ret->deepCopy(this); |
| return ret.release(); |
| } |
| |
| PassRefPtr<SVGPropertyBase> SVGLengthList::cloneForAnimation(const String& value) const |
| { |
| RefPtr<SVGLengthList> ret = SVGLengthList::create(m_mode); |
| ret->setValueAsString(value, IGNORE_EXCEPTION); |
| return ret.release(); |
| } |
| |
| String SVGLengthList::valueAsString() const |
| { |
| StringBuilder builder; |
| |
| ConstIterator it = begin(); |
| ConstIterator itEnd = end(); |
| if (it != itEnd) { |
| builder.append(it->valueAsString()); |
| ++it; |
| |
| for (; it != itEnd; ++it) { |
| builder.append(' '); |
| builder.append(it->valueAsString()); |
| } |
| } |
| |
| return builder.toString(); |
| } |
| |
| template <typename CharType> |
| void SVGLengthList::parseInternal(const CharType*& ptr, const CharType* end, ExceptionState& exceptionState) |
| { |
| clear(); |
| while (ptr < end) { |
| const CharType* start = ptr; |
| while (ptr < end && *ptr != ',' && !isHTMLSpace<CharType>(*ptr)) |
| ptr++; |
| if (ptr == start) |
| break; |
| |
| RefPtr<SVGLength> length = SVGLength::create(m_mode); |
| String valueString(start, ptr - start); |
| if (valueString.isEmpty()) |
| return; |
| length->setValueAsString(valueString, exceptionState); |
| if (exceptionState.hadException()) |
| return; |
| append(length); |
| skipOptionalSVGSpacesOrDelimiter(ptr, end); |
| } |
| } |
| |
| void SVGLengthList::setValueAsString(const String& value, ExceptionState& exceptionState) |
| { |
| if (value.isEmpty()) { |
| clear(); |
| return; |
| } |
| if (value.is8Bit()) { |
| const LChar* ptr = value.characters8(); |
| const LChar* end = ptr + value.length(); |
| parseInternal(ptr, end, exceptionState); |
| } else { |
| const UChar* ptr = value.characters16(); |
| const UChar* end = ptr + value.length(); |
| parseInternal(ptr, end, exceptionState); |
| } |
| } |
| |
| void SVGLengthList::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement* contextElement) |
| { |
| RefPtr<SVGLengthList> otherList = toSVGLengthList(other); |
| |
| if (length() != otherList->length()) |
| return; |
| |
| SVGLengthContext lengthContext(contextElement); |
| for (size_t i = 0; i < length(); ++i) |
| at(i)->setValue(at(i)->value(lengthContext) + otherList->at(i)->value(lengthContext), lengthContext, ASSERT_NO_EXCEPTION); |
| } |
| |
| bool SVGLengthList::adjustFromToListValues(PassRefPtr<SVGLengthList> passFromList, PassRefPtr<SVGLengthList> passToList, float percentage, bool isToAnimation, bool resizeAnimatedListIfNeeded) |
| { |
| RefPtr<SVGLengthList> fromList = passFromList; |
| RefPtr<SVGLengthList> toList = passToList; |
| |
| // If no 'to' value is given, nothing to animate. |
| size_t toListSize = toList->length(); |
| if (!toListSize) |
| return false; |
| |
| // If the 'from' value is given and it's length doesn't match the 'to' value list length, fallback to a discrete animation. |
| size_t fromListSize = fromList->length(); |
| if (fromListSize != toListSize && fromListSize) { |
| if (percentage < 0.5) { |
| if (!isToAnimation) |
| deepCopy(fromList); |
| } else { |
| deepCopy(toList); |
| } |
| |
| return false; |
| } |
| |
| ASSERT(!fromListSize || fromListSize == toListSize); |
| if (resizeAnimatedListIfNeeded && length() < toListSize) { |
| size_t paddingCount = toListSize - length(); |
| for (size_t i = 0; i < paddingCount; ++i) |
| append(SVGLength::create(m_mode)); |
| } |
| |
| return true; |
| } |
| |
| void SVGLengthList::calculateAnimatedValue(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> fromValue, PassRefPtr<SVGPropertyBase> toValue, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) |
| { |
| RefPtr<SVGLengthList> fromList = toSVGLengthList(fromValue); |
| RefPtr<SVGLengthList> toList = toSVGLengthList(toValue); |
| RefPtr<SVGLengthList> toAtEndOfDurationList = toSVGLengthList(toAtEndOfDurationValue); |
| |
| SVGLengthContext lengthContext(contextElement); |
| ASSERT(m_mode == SVGLength::lengthModeForAnimatedLengthAttribute(animationElement->attributeName())); |
| |
| size_t fromLengthListSize = fromList->length(); |
| size_t toLengthListSize = toList->length(); |
| size_t toAtEndOfDurationListSize = toAtEndOfDurationList->length(); |
| |
| if (!adjustFromToListValues(fromList, toList, percentage, animationElement->animationMode() == ToAnimation, true)) |
| return; |
| |
| for (size_t i = 0; i < toLengthListSize; ++i) { |
| float animatedNumber = at(i)->value(lengthContext); |
| SVGLengthType unitType = toList->at(i)->unitType(); |
| float effectiveFrom = 0; |
| if (fromLengthListSize) { |
| if (percentage < 0.5) |
| unitType = fromList->at(i)->unitType(); |
| effectiveFrom = fromList->at(i)->value(lengthContext); |
| } |
| float effectiveTo = toList->at(i)->value(lengthContext); |
| float effectiveToAtEnd = i < toAtEndOfDurationListSize ? toAtEndOfDurationList->at(i)->value(lengthContext) : 0; |
| |
| animationElement->animateAdditiveNumber(percentage, repeatCount, effectiveFrom, effectiveTo, effectiveToAtEnd, animatedNumber); |
| at(i)->setUnitType(unitType); |
| at(i)->setValue(animatedNumber, lengthContext, ASSERT_NO_EXCEPTION); |
| } |
| } |
| |
| float SVGLengthList::calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement*) |
| { |
| // FIXME: Distance calculation is not possible for SVGLengthList right now. We need the distance for every single value. |
| return -1; |
| } |
| } |