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
|
/*
* Copyright (C) 2009 Dirk Schulze <krit@webkit.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 "third_party/blink/renderer/core/svg/svg_fe_morphology_element.h"
#include "third_party/blink/renderer/core/svg/graphics/filters/svg_filter_builder.h"
#include "third_party/blink/renderer/core/svg/svg_enumeration_map.h"
#include "third_party/blink/renderer/core/svg_names.h"
#include "third_party/blink/renderer/platform/heap/heap.h"
namespace blink {
template <>
const SVGEnumerationMap& GetEnumerationMap<MorphologyOperatorType>() {
static const SVGEnumerationMap::Entry enum_items[] = {
{FEMORPHOLOGY_OPERATOR_ERODE, "erode"},
{FEMORPHOLOGY_OPERATOR_DILATE, "dilate"},
};
static const SVGEnumerationMap entries(enum_items);
return entries;
}
SVGFEMorphologyElement::SVGFEMorphologyElement(Document& document)
: SVGFilterPrimitiveStandardAttributes(svg_names::kFEMorphologyTag,
document),
radius_(MakeGarbageCollected<SVGAnimatedNumberOptionalNumber>(
this,
svg_names::kRadiusAttr,
0.0f)),
in1_(MakeGarbageCollected<SVGAnimatedString>(this, svg_names::kInAttr)),
svg_operator_(
MakeGarbageCollected<SVGAnimatedEnumeration<MorphologyOperatorType>>(
this,
svg_names::kOperatorAttr,
FEMORPHOLOGY_OPERATOR_ERODE)) {
AddToPropertyMap(radius_);
AddToPropertyMap(in1_);
AddToPropertyMap(svg_operator_);
}
void SVGFEMorphologyElement::Trace(Visitor* visitor) {
visitor->Trace(radius_);
visitor->Trace(in1_);
visitor->Trace(svg_operator_);
SVGFilterPrimitiveStandardAttributes::Trace(visitor);
}
bool SVGFEMorphologyElement::SetFilterEffectAttribute(
FilterEffect* effect,
const QualifiedName& attr_name) {
FEMorphology* morphology = static_cast<FEMorphology*>(effect);
if (attr_name == svg_names::kOperatorAttr)
return morphology->SetMorphologyOperator(
svg_operator_->CurrentValue()->EnumValue());
if (attr_name == svg_names::kRadiusAttr) {
// Both setRadius functions should be evaluated separately.
bool is_radius_x_changed =
morphology->SetRadiusX(radiusX()->CurrentValue()->Value());
bool is_radius_y_changed =
morphology->SetRadiusY(radiusY()->CurrentValue()->Value());
return is_radius_x_changed || is_radius_y_changed;
}
return SVGFilterPrimitiveStandardAttributes::SetFilterEffectAttribute(
effect, attr_name);
}
void SVGFEMorphologyElement::SvgAttributeChanged(
const QualifiedName& attr_name) {
if (attr_name == svg_names::kOperatorAttr ||
attr_name == svg_names::kRadiusAttr) {
SVGElement::InvalidationGuard invalidation_guard(this);
PrimitiveAttributeChanged(attr_name);
return;
}
if (attr_name == svg_names::kInAttr) {
SVGElement::InvalidationGuard invalidation_guard(this);
Invalidate();
return;
}
SVGFilterPrimitiveStandardAttributes::SvgAttributeChanged(attr_name);
}
FilterEffect* SVGFEMorphologyElement::Build(SVGFilterBuilder* filter_builder,
Filter* filter) {
FilterEffect* input1 = filter_builder->GetEffectById(
AtomicString(in1_->CurrentValue()->Value()));
if (!input1)
return nullptr;
// "A negative or zero value disables the effect of the given filter
// primitive (i.e., the result is the filter input image)."
// https://drafts.fxtf.org/filter-effects/#element-attrdef-femorphology-radius
//
// (This is handled by FEMorphology)
float x_radius = radiusX()->CurrentValue()->Value();
float y_radius = radiusY()->CurrentValue()->Value();
auto* effect = MakeGarbageCollected<FEMorphology>(
filter, svg_operator_->CurrentValue()->EnumValue(), x_radius, y_radius);
effect->InputEffects().push_back(input1);
return effect;
}
} // namespace blink
|
