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
|
/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
*
* 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.
*
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_TRANSFORMS_TRANSFORM_OPERATIONS_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_TRANSFORMS_TRANSFORM_OPERATIONS_H_
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/platform/geometry/layout_size.h"
#include "third_party/blink/renderer/platform/transforms/transform_operation.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
class FloatBox;
class PLATFORM_EXPORT EmptyTransformOperations final {
DISALLOW_NEW();
};
class PLATFORM_EXPORT TransformOperations {
DISALLOW_NEW();
public:
explicit TransformOperations(bool make_identity = false);
TransformOperations(const EmptyTransformOperations&) {}
bool operator==(const TransformOperations& o) const;
bool operator!=(const TransformOperations& o) const { return !(*this == o); }
// Constructs a transformation matrix from the operations. The parameter
// |border_box_size| is used when computing styles that are size-dependent.
void Apply(const FloatSize& border_box_size, TransformationMatrix& t) const {
for (auto& operation : operations_)
operation->Apply(t, border_box_size);
}
// Constructs a transformation matrix from the operations starting from index
// |start|. This process facilitates mixing pairwise operations for a common
// prefix and matrix interpolation for the remainder. The parameter
// |border_box_size| is used when computing styles that are size-dependent.
void ApplyRemaining(const FloatSize& border_box_size,
wtf_size_t start,
TransformationMatrix& t) const;
// Return true if any of the operation types are 3D operation types (even if
// the values describe affine transforms)
bool Has3DOperation() const {
for (auto& operation : operations_)
if (operation->Is3DOperation())
return true;
return false;
}
// Returns true if any operation has a non-trivial component in the Z
// axis.
bool HasNonTrivial3DComponent() const {
for (auto& operation : operations_) {
if (operation->HasNonTrivial3DComponent())
return true;
}
return false;
}
bool DependsOnBoxSize() const {
for (auto& operation : operations_) {
if (operation->DependsOnBoxSize())
return true;
}
return false;
}
wtf_size_t MatchingPrefixLength(const TransformOperations&) const;
void clear() { operations_.clear(); }
Vector<scoped_refptr<TransformOperation>>& Operations() {
return operations_;
}
const Vector<scoped_refptr<TransformOperation>>& Operations() const {
return operations_;
}
wtf_size_t size() const { return operations_.size(); }
const TransformOperation* at(wtf_size_t index) const {
return index < operations_.size() ? operations_.at(index).get() : nullptr;
}
bool BlendedBoundsForBox(const FloatBox&,
const TransformOperations& from,
const double& min_progress,
const double& max_progress,
FloatBox* bounds) const;
TransformOperations BlendPrefixByMatchingOperations(
const TransformOperations& from,
wtf_size_t matching_prefix_length,
double progress,
bool* success) const;
scoped_refptr<TransformOperation> BlendRemainingByUsingMatrixInterpolation(
const TransformOperations& from,
wtf_size_t matching_prefix_length,
double progress) const;
TransformOperations Blend(const TransformOperations& from,
double progress) const;
TransformOperations Add(const TransformOperations& addend) const;
TransformOperations Zoom(double factor) const;
private:
Vector<scoped_refptr<TransformOperation>> operations_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_TRANSFORMS_TRANSFORM_OPERATIONS_H_
|
