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
|
/*
* Copyright (C) 2020 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "StyleContentAlignmentData.h"
#include <wtf/text/TextStream.h>
namespace WebCore {
TextStream& operator<<(TextStream& ts, const StyleContentAlignmentData& o)
{
return ts << o.position() << " " << o.distribution() << " " << o.overflow();
}
bool StyleContentAlignmentData::isStartward(std::optional<TextDirection> leftRightAxisDirection, bool isFlexReverse) const
{
switch (static_cast<ContentPosition>(m_position)) {
case ContentPosition::Normal:
switch (static_cast<ContentDistribution>(m_distribution)) {
case ContentDistribution::Default:
case ContentDistribution::Stretch:
case ContentDistribution::SpaceBetween:
return !isFlexReverse;
default:
return false;
}
case ContentPosition::Start:
case ContentPosition::Baseline:
return true;
case ContentPosition::End:
case ContentPosition::LastBaseline:
case ContentPosition::Center:
return false;
case ContentPosition::FlexStart:
return !isFlexReverse;
case ContentPosition::FlexEnd:
return isFlexReverse;
case ContentPosition::Left:
if (leftRightAxisDirection)
return leftRightAxisDirection == TextDirection::LTR;
return true;
case ContentPosition::Right:
if (leftRightAxisDirection)
return leftRightAxisDirection == TextDirection::RTL;
return true;
default:
ASSERT("Invalid ContentPosition");
return true;
}
}
bool StyleContentAlignmentData::isEndward(std::optional<TextDirection> leftRightAxisDirection, bool isFlexReverse) const
{
switch (static_cast<ContentPosition>(m_position)) {
case ContentPosition::Normal:
switch (static_cast<ContentDistribution>(m_distribution)) {
case ContentDistribution::Default:
case ContentDistribution::Stretch:
case ContentDistribution::SpaceBetween:
return isFlexReverse;
default:
return false;
}
case ContentPosition::Start:
case ContentPosition::Baseline:
case ContentPosition::Center:
return false;
case ContentPosition::End:
case ContentPosition::LastBaseline:
return true;
case ContentPosition::FlexStart:
return isFlexReverse;
case ContentPosition::FlexEnd:
return !isFlexReverse;
case ContentPosition::Left:
if (leftRightAxisDirection)
return leftRightAxisDirection == TextDirection::RTL;
return false;
case ContentPosition::Right:
if (leftRightAxisDirection)
return leftRightAxisDirection == TextDirection::LTR;
return false;
default:
ASSERT("Invalid ContentPosition");
return false;
}
}
bool StyleContentAlignmentData::isCentered() const
{
return static_cast<ContentPosition>(m_position) == ContentPosition::Center
|| static_cast<ContentDistribution>(m_distribution) == ContentDistribution::SpaceAround
|| static_cast<ContentDistribution>(m_distribution) == ContentDistribution::SpaceEvenly;
}
}
|
