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#include <mbgl/layer/circle_layer_impl.hpp>
#include <mbgl/style/style_bucket_parameters.hpp>
#include <mbgl/renderer/circle_bucket.hpp>
#include <mbgl/geometry/feature_index.hpp>
#include <mbgl/util/math.hpp>
#include <mbgl/util/intersection_tests.hpp>
namespace mbgl {
void CircleLayer::Impl::parsePaints(const JSValue& layer) {
paint.parse(layer);
}
void CircleLayer::Impl::cascade(const StyleCascadeParameters& parameters) {
paint.cascade(parameters);
}
bool CircleLayer::Impl::recalculate(const StyleCalculationParameters& parameters) {
bool hasTransitions = paint.recalculate(parameters);
passes = (paint.circleRadius > 0 && paint.circleColor.value[3] > 0 && paint.circleOpacity > 0)
? RenderPass::Translucent : RenderPass::None;
return hasTransitions;
}
std::unique_ptr<Bucket> CircleLayer::Impl::createBucket(StyleBucketParameters& parameters) const {
auto bucket = std::make_unique<CircleBucket>(parameters.mode);
auto& name = bucketName();
parameters.eachFilteredFeature(filter, [&] (const auto& feature, std::size_t index, const std::string& layerName) {
auto geometries = feature.getGeometries();
bucket->addGeometry(geometries);
parameters.featureIndex.insert(geometries, index, layerName, name);
});
return std::move(bucket);
}
float CircleLayer::Impl::getQueryRadius() const {
const std::array<float, 2>& translate = paint.circleTranslate;
return paint.circleRadius + util::length(translate[0], translate[1]);
}
bool CircleLayer::Impl::queryIntersectsGeometry(
const GeometryCollection& queryGeometry,
const GeometryCollection& geometry,
const float bearing,
const float pixelsToTileUnits) const {
auto translatedQueryGeometry = FeatureIndex::translateQueryGeometry(
queryGeometry, paint.circleTranslate, paint.circleTranslateAnchor, bearing, pixelsToTileUnits);
auto circleRadius = paint.circleRadius * pixelsToTileUnits;
return util::multiPolygonIntersectsBufferedMultiPoint(
translatedQueryGeometry.value_or(queryGeometry), geometry, circleRadius);
}
} // namespace mbgl
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