8ac87ec5cb
So that it does not downcast `Layer::Impl` instances. Also, an unneeded `std::vector` construction was removed from `Parser::fontStacks()`.
33 lines
782 B
C++
33 lines
782 B
C++
#include <mbgl/util/font_stack.hpp>
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#include <mbgl/style/layers/symbol_layer_impl.hpp>
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#include <mbgl/util/hash.hpp>
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#include <boost/algorithm/string/join.hpp>
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namespace mbgl {
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using namespace style;
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std::string fontStackToString(const FontStack& fontStack) {
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return boost::algorithm::join(fontStack, ",");
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}
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FontStackHash FontStackHasher::operator()(const FontStack& fontStack) const {
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std::size_t seed = 0;
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for (const auto& font : fontStack) {
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util::hash_combine(seed, font);
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}
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return seed;
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}
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std::set<FontStack> fontStacks(const std::vector<Immutable<style::Layer::Impl>>& layers) {
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std::set<FontStack> result;
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for (const auto& layer : layers) {
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layer->populateFontStack(result);
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}
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return result;
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}
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} // namespace mbgl
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