1/* 2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21#include "config.h" 22#include "core/svg/SVGLengthList.h" 23 24#include "bindings/core/v8/ExceptionStatePlaceholder.h" 25#include "core/svg/SVGAnimationElement.h" 26#include "core/svg/SVGParserUtilities.h" 27#include "wtf/text/StringBuilder.h" 28 29namespace blink { 30 31inline PassRefPtr<SVGLengthList> toSVGLengthList(PassRefPtr<SVGPropertyBase> passBase) 32{ 33 RefPtr<SVGPropertyBase> base = passBase; 34 ASSERT(base->type() == SVGLengthList::classType()); 35 return static_pointer_cast<SVGLengthList>(base.release()); 36} 37 38SVGLengthList::SVGLengthList(SVGLengthMode mode) 39 : m_mode(mode) 40{ 41} 42 43SVGLengthList::~SVGLengthList() 44{ 45} 46 47PassRefPtr<SVGLengthList> SVGLengthList::clone() 48{ 49 RefPtr<SVGLengthList> ret = SVGLengthList::create(m_mode); 50 ret->deepCopy(this); 51 return ret.release(); 52} 53 54PassRefPtr<SVGPropertyBase> SVGLengthList::cloneForAnimation(const String& value) const 55{ 56 RefPtr<SVGLengthList> ret = SVGLengthList::create(m_mode); 57 ret->setValueAsString(value, IGNORE_EXCEPTION); 58 return ret.release(); 59} 60 61String SVGLengthList::valueAsString() const 62{ 63 StringBuilder builder; 64 65 ConstIterator it = begin(); 66 ConstIterator itEnd = end(); 67 if (it != itEnd) { 68 builder.append(it->valueAsString()); 69 ++it; 70 71 for (; it != itEnd; ++it) { 72 builder.append(' '); 73 builder.append(it->valueAsString()); 74 } 75 } 76 77 return builder.toString(); 78} 79 80template <typename CharType> 81void SVGLengthList::parseInternal(const CharType*& ptr, const CharType* end, ExceptionState& exceptionState) 82{ 83 clear(); 84 while (ptr < end) { 85 const CharType* start = ptr; 86 while (ptr < end && *ptr != ',' && !isHTMLSpace<CharType>(*ptr)) 87 ptr++; 88 if (ptr == start) 89 break; 90 91 RefPtr<SVGLength> length = SVGLength::create(m_mode); 92 String valueString(start, ptr - start); 93 if (valueString.isEmpty()) 94 return; 95 length->setValueAsString(valueString, exceptionState); 96 if (exceptionState.hadException()) 97 return; 98 append(length); 99 skipOptionalSVGSpacesOrDelimiter(ptr, end); 100 } 101} 102 103void SVGLengthList::setValueAsString(const String& value, ExceptionState& exceptionState) 104{ 105 if (value.isEmpty()) { 106 clear(); 107 return; 108 } 109 if (value.is8Bit()) { 110 const LChar* ptr = value.characters8(); 111 const LChar* end = ptr + value.length(); 112 parseInternal(ptr, end, exceptionState); 113 } else { 114 const UChar* ptr = value.characters16(); 115 const UChar* end = ptr + value.length(); 116 parseInternal(ptr, end, exceptionState); 117 } 118} 119 120void SVGLengthList::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement* contextElement) 121{ 122 RefPtr<SVGLengthList> otherList = toSVGLengthList(other); 123 124 if (length() != otherList->length()) 125 return; 126 127 SVGLengthContext lengthContext(contextElement); 128 for (size_t i = 0; i < length(); ++i) 129 at(i)->setValue(at(i)->value(lengthContext) + otherList->at(i)->value(lengthContext), lengthContext, ASSERT_NO_EXCEPTION); 130} 131 132PassRefPtr<SVGLength> SVGLengthList::createPaddingItem() const 133{ 134 return SVGLength::create(m_mode); 135} 136 137void SVGLengthList::calculateAnimatedValue(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> fromValue, PassRefPtr<SVGPropertyBase> toValue, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) 138{ 139 RefPtr<SVGLengthList> fromList = toSVGLengthList(fromValue); 140 RefPtr<SVGLengthList> toList = toSVGLengthList(toValue); 141 RefPtr<SVGLengthList> toAtEndOfDurationList = toSVGLengthList(toAtEndOfDurationValue); 142 143 SVGLengthContext lengthContext(contextElement); 144 ASSERT(m_mode == SVGLength::lengthModeForAnimatedLengthAttribute(animationElement->attributeName())); 145 146 size_t fromLengthListSize = fromList->length(); 147 size_t toLengthListSize = toList->length(); 148 size_t toAtEndOfDurationListSize = toAtEndOfDurationList->length(); 149 150 if (!adjustFromToListValues(fromList, toList, percentage, animationElement->animationMode())) 151 return; 152 153 for (size_t i = 0; i < toLengthListSize; ++i) { 154 float animatedNumber = at(i)->value(lengthContext); 155 SVGLengthType unitType = toList->at(i)->unitType(); 156 float effectiveFrom = 0; 157 if (fromLengthListSize) { 158 if (percentage < 0.5) 159 unitType = fromList->at(i)->unitType(); 160 effectiveFrom = fromList->at(i)->value(lengthContext); 161 } 162 float effectiveTo = toList->at(i)->value(lengthContext); 163 float effectiveToAtEnd = i < toAtEndOfDurationListSize ? toAtEndOfDurationList->at(i)->value(lengthContext) : 0; 164 165 animationElement->animateAdditiveNumber(percentage, repeatCount, effectiveFrom, effectiveTo, effectiveToAtEnd, animatedNumber); 166 at(i)->setUnitType(unitType); 167 at(i)->setValue(animatedNumber, lengthContext, ASSERT_NO_EXCEPTION); 168 } 169} 170 171float SVGLengthList::calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement*) 172{ 173 // FIXME: Distance calculation is not possible for SVGLengthList right now. We need the distance for every single value. 174 return -1; 175} 176} 177