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