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
|
#include <mbgl/test/util.hpp>
#include <mbgl/text/bidi.hpp>
#include <mbgl/text/tagged_string.hpp>
#include <mbgl/text/shaping.hpp>
#include <mbgl/util/constants.hpp>
using namespace mbgl;
using namespace util;
TEST(Shaping, ZWSP) {
GlyphPosition glyphPosition;
glyphPosition.metrics.width = 18;
glyphPosition.metrics.height = 18;
glyphPosition.metrics.left = 2;
glyphPosition.metrics.top = -8;
glyphPosition.metrics.advance = 21;
Glyph glyph;
glyph.id = u'中';
glyph.metrics = glyphPosition.metrics;
BiDi bidi;
auto immutableGlyph = Immutable<Glyph>(makeMutable<Glyph>(std::move(glyph)));
const std::vector<std::string> fontStack{{"font-stack"}};
const SectionOptions sectionOptions(1.0f, fontStack);
const float layoutTextSize = 16.0f;
const float layoutTextSizeAtBucketZoomLevel = 16.0f;
GlyphMap glyphs = {
{ FontStackHasher()(fontStack), {{u'中', std::move(immutableGlyph)}} }
};
GlyphPositions glyphPositions = {{FontStackHasher()(fontStack), {{u'中', std::move(glyphPosition)}}}};
ImagePositions imagePositions;
const auto testGetShaping = [&](const TaggedString& string, unsigned maxWidthInChars) {
return getShaping(string,
maxWidthInChars * ONE_EM,
ONE_EM, // lineHeight
style::SymbolAnchorType::Center,
style::TextJustifyType::Center,
0, // spacing
{{0.0f, 0.0f}}, // translate
WritingModeType::Horizontal,
bidi,
glyphs,
glyphPositions,
imagePositions,
layoutTextSize,
layoutTextSizeAtBucketZoomLevel,
/*allowVerticalPlacement*/ false);
};
// 3 lines
// 中中中中中中
// 中中中中中中
// 中中
{
TaggedString string(u"中中\u200b中中\u200b中中\u200b中中中中中中\u200b中中", sectionOptions);
auto shaping = testGetShaping(string, 5);
ASSERT_EQ(shaping.positionedLines.size(), 3);
ASSERT_EQ(shaping.top, -36);
ASSERT_EQ(shaping.bottom, 36);
ASSERT_EQ(shaping.left, -63);
ASSERT_EQ(shaping.right, 63);
ASSERT_EQ(shaping.writingMode, WritingModeType::Horizontal);
}
// 2 lines
// 中中
// 中
{
TaggedString string(u"中中\u200b中", sectionOptions);
auto shaping = testGetShaping(string, 1);
ASSERT_EQ(shaping.positionedLines.size(), 2);
ASSERT_EQ(shaping.top, -24);
ASSERT_EQ(shaping.bottom, 24);
ASSERT_EQ(shaping.left, -21);
ASSERT_EQ(shaping.right, 21);
ASSERT_EQ(shaping.writingMode, WritingModeType::Horizontal);
}
// 1 line
// 中中
{
TaggedString string(u"中中\u200b", sectionOptions);
auto shaping = testGetShaping(string, 2);
ASSERT_EQ(shaping.positionedLines.size(), 1);
ASSERT_EQ(shaping.top, -12);
ASSERT_EQ(shaping.bottom, 12);
ASSERT_EQ(shaping.left, -21);
ASSERT_EQ(shaping.right, 21);
ASSERT_EQ(shaping.writingMode, WritingModeType::Horizontal);
}
// 5 'new' lines.
{
TaggedString string(u"\u200b\u200b\u200b\u200b\u200b", sectionOptions);
auto shaping = testGetShaping(string, 1);
ASSERT_EQ(shaping.positionedLines.size(), 5);
ASSERT_EQ(shaping.top, -60);
ASSERT_EQ(shaping.bottom, 60);
ASSERT_EQ(shaping.left, 0);
ASSERT_EQ(shaping.right, 0);
ASSERT_EQ(shaping.writingMode, WritingModeType::Horizontal);
}
}
|
