1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
* Copyright (C) 2007 Eric Seidel <eric@webkit.org>
* Copyright (C) 2008 Apple Inc. All rights reserved.
* Copyright (C) Research In Motion Limited 2012. 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"
#if ENABLE(SVG)
#include "SVGAnimatedTransformList.h"
#include "SVGAnimateTransformElement.h"
#include "SVGAnimatedNumber.h"
#include "SVGNames.h"
#include "SVGTransformDistance.h"
namespace WebCore {
SVGAnimatedTransformListAnimator::SVGAnimatedTransformListAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
: SVGAnimatedTypeAnimator(AnimatedTransformList, animationElement, contextElement)
, m_transformTypeString(SVGTransform::transformTypePrefixForParsing(static_cast<SVGAnimateTransformElement*>(animationElement)->transformType()))
{
// Only <animateTransform> uses this animator, as <animate> doesn't allow to animate transform lists directly.
ASSERT(animationElement->hasTagName(SVGNames::animateTransformTag));
}
PassOwnPtr<SVGAnimatedType> SVGAnimatedTransformListAnimator::constructFromString(const String& string)
{
OwnPtr<SVGAnimatedType> animatedType = SVGAnimatedType::createTransformList(new SVGTransformList);
animatedType->transformList().parse(m_transformTypeString + string + ')');
ASSERT(animatedType->transformList().size() <= 1);
return animatedType.release();
}
PassOwnPtr<SVGAnimatedType> SVGAnimatedTransformListAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
{
return SVGAnimatedType::createTransformList(constructFromBaseValue<SVGAnimatedTransformList>(animatedTypes));
}
void SVGAnimatedTransformListAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
{
stopAnimValAnimationForType<SVGAnimatedTransformList>(animatedTypes);
}
void SVGAnimatedTransformListAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type)
{
resetFromBaseValue<SVGAnimatedTransformList>(animatedTypes, type, &SVGAnimatedType::transformList);
}
void SVGAnimatedTransformListAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes)
{
animValWillChangeForType<SVGAnimatedTransformList>(animatedTypes);
}
void SVGAnimatedTransformListAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes)
{
animValDidChangeForType<SVGAnimatedTransformList>(animatedTypes);
}
void SVGAnimatedTransformListAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to)
{
ASSERT(from->type() == AnimatedTransformList);
ASSERT(from->type() == to->type());
const SVGTransformList& fromTransformList = from->transformList();
SVGTransformList& toTransformList = to->transformList();
unsigned fromTransformListSize = fromTransformList.size();
if (!fromTransformListSize || fromTransformListSize != toTransformList.size())
return;
ASSERT(fromTransformListSize == 1);
const SVGTransform& fromTransform = fromTransformList[0];
SVGTransform& toTransform = toTransformList[0];
ASSERT(fromTransform.type() == toTransform.type());
toTransform = SVGTransformDistance::addSVGTransforms(fromTransform, toTransform);
}
void SVGAnimatedTransformListAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated)
{
ASSERT(m_animationElement);
// Spec: To animations provide specific functionality to get a smooth change from the underlying value to the
// ‘to’ attribute value, which conflicts mathematically with the requirement for additive transform animations
// to be post-multiplied. As a consequence, in SVG 1.1 the behavior of to animations for ‘animateTransform’ is undefined.
// FIXME: This is not taken into account yet.
const SVGTransformList& fromTransformList = m_animationElement->animationMode() == ToAnimation ? animated->transformList() : from->transformList();
const SVGTransformList& toTransformList = to->transformList();
const SVGTransformList& toAtEndOfDurationTransformList = toAtEndOfDuration->transformList();
SVGTransformList& animatedTransformList = animated->transformList();
// Pass false to 'resizeAnimatedListIfNeeded' here, as the special post-multiplication behavior of <animateTransform> needs to be respected below.
if (!m_animationElement->adjustFromToListValues<SVGTransformList>(fromTransformList, toTransformList, animatedTransformList, percentage, false))
return;
// Never resize the animatedTransformList to the toTransformList size, instead either clear the list or append to it.
if (!animatedTransformList.isEmpty() && !m_animationElement->isAdditive())
animatedTransformList.clear();
unsigned fromTransformListSize = fromTransformList.size();
const SVGTransform& toTransform = toTransformList[0];
const SVGTransform effectiveFrom = fromTransformListSize ? fromTransformList[0] : SVGTransform(toTransform.type(), SVGTransform::ConstructZeroTransform);
SVGTransform currentTransform = SVGTransformDistance(effectiveFrom, toTransform).scaledDistance(percentage).addToSVGTransform(effectiveFrom);
if (m_animationElement->isAccumulated() && repeatCount) {
const SVGTransform effectiveToAtEnd = toAtEndOfDurationTransformList.size() ? toAtEndOfDurationTransformList[0] : SVGTransform(toTransform.type(), SVGTransform::ConstructZeroTransform);
animatedTransformList.append(SVGTransformDistance::addSVGTransforms(currentTransform, effectiveToAtEnd, repeatCount));
} else
animatedTransformList.append(currentTransform);
}
float SVGAnimatedTransformListAnimator::calculateDistance(const String& fromString, const String& toString)
{
ASSERT(m_animationElement);
// FIXME: This is not correct in all cases. The spec demands that each component (translate x and y for example)
// is paced separately. To implement this we need to treat each component as individual animation everywhere.
OwnPtr<SVGAnimatedType> from = constructFromString(fromString);
OwnPtr<SVGAnimatedType> to = constructFromString(toString);
SVGTransformList& fromTransformList = from->transformList();
SVGTransformList& toTransformList = to->transformList();
unsigned itemsCount = fromTransformList.size();
if (!itemsCount || itemsCount != toTransformList.size())
return -1;
ASSERT(itemsCount == 1);
if (fromTransformList[0].type() != toTransformList[0].type())
return -1;
// Spec: http://www.w3.org/TR/SVG/animate.html#complexDistances
// Paced animations assume a notion of distance between the various animation values defined by the ‘to’, ‘from’, ‘by’ and ‘values’ attributes.
// Distance is defined only for scalar types (such as <length>), colors and the subset of transformation types that are supported by ‘animateTransform’.
return SVGTransformDistance(fromTransformList[0], toTransformList[0]).distance();
}
}
#endif // ENABLE(SVG)
|
