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
|
/*
* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
* Copyright (C) 2018-2022 Apple Inc. 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 "SVGFEOffsetElement.h"
#include "FEOffset.h"
#include "NodeName.h"
#include "SVGFilter.h"
#include "SVGNames.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(SVGFEOffsetElement);
inline SVGFEOffsetElement::SVGFEOffsetElement(const QualifiedName& tagName, Document& document)
: SVGFilterPrimitiveStandardAttributes(tagName, document, makeUniqueRef<PropertyRegistry>(*this))
{
ASSERT(hasTagName(SVGNames::feOffsetTag));
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEOffsetElement::m_in1>();
PropertyRegistry::registerProperty<SVGNames::dxAttr, &SVGFEOffsetElement::m_dx>();
PropertyRegistry::registerProperty<SVGNames::dyAttr, &SVGFEOffsetElement::m_dy>();
});
}
Ref<SVGFEOffsetElement> SVGFEOffsetElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGFEOffsetElement(tagName, document));
}
void SVGFEOffsetElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason attributeModificationReason)
{
switch (name.nodeName()) {
case AttributeNames::dxAttr:
Ref { m_dx }->setBaseValInternal(newValue.toFloat());
break;
case AttributeNames::dyAttr:
Ref { m_dy }->setBaseValInternal(newValue.toFloat());
break;
case AttributeNames::inAttr:
Ref { m_in1 }->setBaseValInternal(newValue);
break;
default:
break;
}
SVGFilterPrimitiveStandardAttributes::attributeChanged(name, oldValue, newValue, attributeModificationReason);
}
void SVGFEOffsetElement::svgAttributeChanged(const QualifiedName& attrName)
{
switch (attrName.nodeName()) {
case AttributeNames::inAttr: {
InstanceInvalidationGuard guard(*this);
updateSVGRendererForElementChange();
break;
}
case AttributeNames::dxAttr:
case AttributeNames::dyAttr: {
InstanceInvalidationGuard guard(*this);
primitiveAttributeChanged(attrName);
break;
}
default:
SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
break;
}
}
bool SVGFEOffsetElement::setFilterEffectAttribute(FilterEffect& effect, const QualifiedName& attrName)
{
auto& offset = downcast<FEOffset>(effect);
if (attrName == SVGNames::dxAttr)
return offset.setDx(dx());
if (attrName == SVGNames::dyAttr)
return offset.setDy(dy());
ASSERT_NOT_REACHED();
return false;
}
bool SVGFEOffsetElement::isIdentity() const
{
return !dx() && !dy();
}
IntOutsets SVGFEOffsetElement::outsets(const FloatRect& targetBoundingBox, SVGUnitTypes::SVGUnitType primitiveUnits) const
{
auto offset = SVGFilter::calculateResolvedSize({ dx(), dy() }, targetBoundingBox, primitiveUnits);
return FEOffset::calculateOutsets(offset);
}
RefPtr<FilterEffect> SVGFEOffsetElement::createFilterEffect(const FilterEffectVector&, const GraphicsContext&) const
{
return FEOffset::create(dx(), dy());
}
} // namespace WebCore
|
