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author | John Firebaugh <john.firebaugh@gmail.com> | 2016-06-21 17:22:51 -0700 |
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committer | John Firebaugh <john.firebaugh@gmail.com> | 2016-06-21 18:24:49 -0700 |
commit | 3459b83736f0e4eedfb95a1394d9e4ee1523b917 (patch) | |
tree | 2e8cc0abacdaad54b394af1291e846c7483acfa2 /src/mbgl/style/parser.cpp | |
parent | 220fc7adc952c97db3fb8ce7edb855db9469ef5a (diff) | |
download | qtlocation-mapboxgl-3459b83736f0e4eedfb95a1394d9e4ee1523b917.tar.gz |
[core, node] Node bindings for setFilter
Diffstat (limited to 'src/mbgl/style/parser.cpp')
-rw-r--r-- | src/mbgl/style/parser.cpp | 175 |
1 files changed, 8 insertions, 167 deletions
diff --git a/src/mbgl/style/parser.cpp b/src/mbgl/style/parser.cpp index 34f01c14c1..eddda5d3f2 100644 --- a/src/mbgl/style/parser.cpp +++ b/src/mbgl/style/parser.cpp @@ -9,6 +9,8 @@ #include <mbgl/style/layers/symbol_layer.hpp> #include <mbgl/style/layers/raster_layer.hpp> #include <mbgl/style/layers/background_layer.hpp> +#include <mbgl/style/rapidjson_conversion.hpp> +#include <mbgl/style/conversion.hpp> #include <mbgl/platform/log.hpp> @@ -275,7 +277,12 @@ void Parser::parseLayer(const std::string& id, const JSValue& value, std::unique } if (value.HasMember("filter")) { - impl->filter = parseFilter(value["filter"]); + conversion::Result<Filter> filter = conversion::convertFilter(value["filter"]); + if (filter.is<Filter>()) { + impl->filter = filter.get<Filter>(); + } else { + Log::Warning(Event::ParseStyle, filter.get<conversion::Error>().message); + } } if (value.HasMember("minzoom")) { @@ -326,172 +333,6 @@ void Parser::parseVisibility(Layer& layer, const JSValue& value) { impl.visibility = *enumValue; } -Value parseFeatureType(const Value& value) { - if (value == std::string("Point")) { - return Value(uint64_t(FeatureType::Point)); - } else if (value == std::string("LineString")) { - return Value(uint64_t(FeatureType::LineString)); - } else if (value == std::string("Polygon")) { - return Value(uint64_t(FeatureType::Polygon)); - } else { - Log::Warning(Event::ParseStyle, "value for $type filter must be Point, LineString, or Polygon"); - return Value(uint64_t(FeatureType::Unknown)); - } -} - -Value parseValue(const JSValue& value) { - switch (value.GetType()) { - case rapidjson::kNullType: - case rapidjson::kFalseType: - return false; - - case rapidjson::kTrueType: - return true; - - case rapidjson::kStringType: - return std::string { value.GetString(), value.GetStringLength() }; - - case rapidjson::kNumberType: - if (value.IsUint64()) return value.GetUint64(); - if (value.IsInt64()) return value.GetInt64(); - return value.GetDouble(); - - default: - return false; - } -} - -template <class Expression> -Filter parseUnaryFilter(const JSValue& value) { - Filter empty; - - if (value.Size() < 2) { - Log::Warning(Event::ParseStyle, "filter expression must have 2 elements"); - return empty; - } - - if (!value[1u].IsString()) { - Log::Warning(Event::ParseStyle, "filter expression key must be a string"); - return empty; - } - - Expression expression; - expression.key = { value[1u].GetString(), value[1u].GetStringLength() }; - return expression; -} - -template <class Expression> -Filter parseBinaryFilter(const JSValue& value) { - Filter empty; - - if (value.Size() < 3) { - Log::Warning(Event::ParseStyle, "filter expression must have 3 elements"); - return empty; - } - - if (!value[1u].IsString()) { - Log::Warning(Event::ParseStyle, "filter expression key must be a string"); - return empty; - } - - Expression expression; - expression.key = { value[1u].GetString(), value[1u].GetStringLength() }; - expression.value = parseValue(value[2u]); - - if (expression.key == "$type") { - expression.value = parseFeatureType(expression.value); - } - - return expression; -} - -template <class Expression> -Filter parseSetFilter(const JSValue& value) { - Filter empty; - - if (value.Size() < 2) { - Log::Warning(Event::ParseStyle, "filter expression must at least 2 elements"); - return empty; - } - - if (!value[1u].IsString()) { - Log::Warning(Event::ParseStyle, "filter expression key must be a string"); - return empty; - } - - Expression expression; - expression.key = { value[1u].GetString(), value[1u].GetStringLength() }; - for (rapidjson::SizeType i = 2; i < value.Size(); ++i) { - Value parsedValue = parseValue(value[i]); - if (expression.key == "$type") { - parsedValue = parseFeatureType(parsedValue); - } - expression.values.push_back(parsedValue); - } - return expression; -} - -template <class Expression> -Filter parseCompoundFilter(const JSValue& value) { - Expression expression; - for (rapidjson::SizeType i = 1; i < value.Size(); ++i) { - expression.filters.push_back(parseFilter(value[i])); - } - return expression; -} - -Filter parseFilter(const JSValue& value) { - Filter empty; - - if (!value.IsArray()) { - Log::Warning(Event::ParseStyle, "filter expression must be an array"); - return empty; - } - - if (value.Size() < 1) { - Log::Warning(Event::ParseStyle, "filter expression must have at least 1 element"); - return empty; - } - - if (!value[0u].IsString()) { - Log::Warning(Event::ParseStyle, "filter operator must be a string"); - return empty; - } - - std::string op = { value[0u].GetString(), value[0u].GetStringLength() }; - - if (op == "==") { - return parseBinaryFilter<EqualsFilter>(value); - } else if (op == "!=") { - return parseBinaryFilter<NotEqualsFilter>(value); - } else if (op == ">") { - return parseBinaryFilter<GreaterThanFilter>(value); - } else if (op == ">=") { - return parseBinaryFilter<GreaterThanEqualsFilter>(value); - } else if (op == "<") { - return parseBinaryFilter<LessThanFilter>(value); - } else if (op == "<=") { - return parseBinaryFilter<LessThanEqualsFilter>(value); - } else if (op == "in") { - return parseSetFilter<InFilter>(value); - } else if (op == "!in") { - return parseSetFilter<NotInFilter>(value); - } else if (op == "all") { - return parseCompoundFilter<AllFilter>(value); - } else if (op == "any") { - return parseCompoundFilter<AnyFilter>(value); - } else if (op == "none") { - return parseCompoundFilter<NoneFilter>(value); - } else if (op == "has") { - return parseUnaryFilter<HasFilter>(value); - } else if (op == "!has") { - return parseUnaryFilter<NotHasFilter>(value); - } else { - Log::Warning(Event::ParseStyle, "filter operator must be one of \"==\", \"!=\", \">\", \">=\", \"<\", \"<=\", \"in\", \"!in\", \"all\", \"any\", \"none\", \"has\", or \"!has\""); - return empty; - } -} - std::vector<FontStack> Parser::fontStacks() const { std::set<FontStack> result; |