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[core] Don't unnecessarily request glyphs for verticalized punctuation.

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Issue #8982.
This commit is contained in:
Chris Loer
2017-05-17 16:48:06 -07:00
committed by Chris Loer
parent eae2c715f1
commit cd4e67968a
1 changed files with 7 additions and 2 deletions
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9
src/mbgl/layout/symbol_layout.cpp
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@@ -136,12 +136,17 @@ SymbolLayout::SymbolLayout(const BucketParameters& parameters,
}
ft.text = applyArabicShaping(util::utf8_to_utf16::convert(u8string));
const bool canVerticalizeText = layout.get<TextRotationAlignment>() == AlignmentType::Map
&& layout.get<SymbolPlacement>() == SymbolPlacementType::Line
&& util::i18n::allowsVerticalWritingMode(*ft.text);
// Loop through all characters of this text and collect unique codepoints.
for (char16_t chr : *ft.text) {
glyphDependencies[layout.get<TextFont>()].insert(chr);
if (char16_t verticalChr = util::i18n::verticalizePunctuation(chr)) {
glyphDependencies[layout.get<TextFont>()].insert(verticalChr);
if (canVerticalizeText) {
if (char16_t verticalChr = util::i18n::verticalizePunctuation(chr)) {
glyphDependencies[layout.get<TextFont>()].insert(verticalChr);
}
}
}
}