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#include <mbgl/renderer/layers/render_circle_layer.hpp>
#include <mbgl/renderer/buckets/circle_bucket.hpp>
#include <mbgl/style/layers/circle_layer_impl.hpp>
#include <mbgl/geometry/feature_index.hpp>
#include <mbgl/util/math.hpp>
#include <mbgl/util/intersection_tests.hpp>
namespace mbgl {
RenderCircleLayer::RenderCircleLayer(Immutable<style::CircleLayer::Impl> _impl)
: RenderLayer(style::LayerType::Circle, _impl),
unevaluated(impl().paint.untransitioned()) {
}
const style::CircleLayer::Impl& RenderCircleLayer::impl() const {
return static_cast<const style::CircleLayer::Impl&>(*baseImpl);
}
std::unique_ptr<Bucket> RenderCircleLayer::createBucket(const BucketParameters& parameters, const std::vector<const RenderLayer*>& layers) const {
return std::make_unique<CircleBucket>(parameters, layers);
}
void RenderCircleLayer::transition(const TransitionParameters& parameters) {
unevaluated = impl().paint.transitioned(parameters, std::move(unevaluated));
}
void RenderCircleLayer::evaluate(const PropertyEvaluationParameters& parameters) {
evaluated = unevaluated.evaluate(parameters);
passes = ((evaluated.get<style::CircleRadius>().constantOr(1) > 0 ||
evaluated.get<style::CircleStrokeWidth>().constantOr(1) > 0)
&& (evaluated.get<style::CircleColor>().constantOr(Color::black()).a > 0 ||
evaluated.get<style::CircleStrokeColor>().constantOr(Color::black()).a > 0)
&& (evaluated.get<style::CircleOpacity>().constantOr(1) > 0 ||
evaluated.get<style::CircleStrokeOpacity>().constantOr(1) > 0))
? RenderPass::Translucent : RenderPass::None;
}
bool RenderCircleLayer::hasTransition() const {
return unevaluated.hasTransition();
}
bool RenderCircleLayer::queryIntersectsFeature(
const GeometryCoordinates& queryGeometry,
const GeometryTileFeature& feature,
const float zoom,
const float bearing,
const float pixelsToTileUnits) const {
// Translate query geometry
auto translatedQueryGeometry = FeatureIndex::translateQueryGeometry(
queryGeometry,
evaluated.get<style::CircleTranslate>(),
evaluated.get<style::CircleTranslateAnchor>(),
bearing,
pixelsToTileUnits);
// Evaluate function
auto circleRadius = evaluated.get<style::CircleRadius>()
.evaluate(feature, zoom, style::CircleRadius::defaultValue())
* pixelsToTileUnits;
// Test intersection
return util::polygonIntersectsBufferedMultiPoint(translatedQueryGeometry.value_or(queryGeometry), feature.getGeometries(), circleRadius);
}
} // namespace mbgl
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