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#include <memory>
#include <mbgl/text/bidi.hpp>
#include <QString>
namespace mbgl {
class BiDiImpl {
public:
QString string;
};
std::u16string applyArabicShaping(const std::u16string& input) {
return input;
}
void BiDi::mergeParagraphLineBreaks(std::set<std::size_t>& lineBreakPoints) {
lineBreakPoints.insert(static_cast<std::size_t>(impl->string.length()));
}
std::vector<std::u16string>
BiDi::applyLineBreaking(std::set<std::size_t> lineBreakPoints) {
mergeParagraphLineBreaks(lineBreakPoints);
std::vector<std::u16string> transformedLines;
std::size_t start = 0;
for (std::size_t lineBreakPoint : lineBreakPoints) {
transformedLines.push_back(getLine(start, lineBreakPoint));
start = lineBreakPoint;
}
return transformedLines;
}
BiDi::BiDi() : impl(std::make_unique<BiDiImpl>())
{
}
BiDi::~BiDi() = default;
std::vector<std::u16string> BiDi::processText(const std::u16string& input, std::set<std::size_t> lineBreakPoints) {
impl->string = QString::fromUtf16(reinterpret_cast<const ushort*>(input.data()), int(input.size()));
return applyLineBreaking(lineBreakPoints);
}
std::u16string BiDi::getLine(std::size_t start, std::size_t end) {
auto utf16 = impl->string.mid(static_cast<int32_t>(start), static_cast<int32_t>(end - start));
return std::u16string(reinterpret_cast<const char16_t*>(utf16.utf16()), utf16.length());
}
} // end namespace mbgl
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