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#include "layer.hpp"
#include "../android_conversion.hpp"
#include <jni/jni.hpp>
#include <mbgl/style/style.hpp>
#include <mbgl/style/filter.hpp>
#include <mbgl/style/transition_options.hpp>
#include <mbgl/style/layers/background_layer.hpp>
#include <mbgl/style/layers/circle_layer.hpp>
#include <mbgl/style/layers/fill_layer.hpp>
#include <mbgl/style/layers/fill_extrusion_layer.hpp>
#include <mbgl/style/layers/heatmap_layer.hpp>
#include <mbgl/style/layers/hillshade_layer.hpp>
#include <mbgl/style/layers/line_layer.hpp>
#include <mbgl/style/layers/raster_layer.hpp>
#include <mbgl/style/layers/symbol_layer.hpp>
#include <mbgl/util/logging.hpp>
// Java -> C++ conversion
#include <mbgl/style/conversion.hpp>
#include <mbgl/style/conversion/filter.hpp>
#include <mbgl/style/conversion/layer.hpp>
#include <mbgl/style/conversion/source.hpp>
// C++ -> Java conversion
#include "../conversion/property_value.hpp"
#include <mbgl/style/filter.hpp>
#include <string>
namespace mbgl {
namespace android {
/**
* Invoked when the construction is initiated from the jvm through a subclass
*/
Layer::Layer(jni::JNIEnv&, std::unique_ptr<mbgl::style::Layer> coreLayer)
: ownedLayer(std::move(coreLayer))
, layer(*ownedLayer) {
}
/**
* Takes a non-owning reference. For lookup methods
*/
Layer::Layer(mbgl::Map& coreMap, mbgl::style::Layer& coreLayer) : layer(coreLayer) , map(&coreMap) {
}
/**
* Takes a owning reference. Ownership is transfered to this peer, eg after removing
* from the map
*/
Layer::Layer(mbgl::Map& coreMap, std::unique_ptr<mbgl::style::Layer> coreLayer)
: ownedLayer(std::move(coreLayer))
, layer(*ownedLayer)
, map(&coreMap) {
}
Layer::~Layer() {
}
void Layer::addToMap(mbgl::Map& _map, mbgl::optional<std::string> before) {
// Check to see if we own the layer first
if (!ownedLayer) {
throw std::runtime_error("Cannot add layer twice");
}
// Add layer to map
_map.getStyle().addLayer(releaseCoreLayer(), before);
// Save pointer to the map
this->map = &_map;
}
void Layer::setLayer(std::unique_ptr<mbgl::style::Layer> sourceLayer) {
this->ownedLayer = std::move(sourceLayer);
}
std::unique_ptr<mbgl::style::Layer> Layer::releaseCoreLayer() {
assert(ownedLayer != nullptr);
return std::move(ownedLayer);
}
jni::String Layer::getId(jni::JNIEnv& env) {
return jni::Make<jni::String>(env, layer.getID());
}
style::Layer& Layer::get() {
return layer;
}
void Layer::setLayoutProperty(jni::JNIEnv& env, jni::String jname, jni::Object<> jvalue) {
// Convert and set property
optional<mbgl::style::conversion::Error> error = mbgl::style::conversion::setLayoutProperty(layer, jni::Make<std::string>(env, jname), Value(env, jvalue));
if (error) {
mbgl::Log::Error(mbgl::Event::JNI, "Error setting property: " + jni::Make<std::string>(env, jname) + " " + error->message);
return;
}
}
void Layer::setPaintProperty(jni::JNIEnv& env, jni::String jname, jni::Object<> jvalue) {
// Convert and set property
optional<mbgl::style::conversion::Error> error = mbgl::style::conversion::setPaintProperty(layer, jni::Make<std::string>(env, jname), Value(env, jvalue));
if (error) {
mbgl::Log::Error(mbgl::Event::JNI, "Error setting property: " + jni::Make<std::string>(env, jname) + " " + error->message);
return;
}
}
struct SetFilterEvaluator {
style::Filter filter;
void operator()(style::BackgroundLayer&) { Log::Warning(mbgl::Event::JNI, "BackgroundLayer doesn't support filters"); }
void operator()(style::CustomLayer&) { Log::Warning(mbgl::Event::JNI, "CustomLayer doesn't support filters"); }
void operator()(style::RasterLayer&) { Log::Warning(mbgl::Event::JNI, "RasterLayer doesn't support filters"); }
void operator()(style::HillshadeLayer&) { Log::Warning(mbgl::Event::JNI, "HillshadeLayer doesn't support filters"); }
template <class LayerType>
void operator()(LayerType& layer) {
layer.setFilter(filter);
}
};
void Layer::setFilter(jni::JNIEnv& env, jni::Array<jni::Object<>> jfilter) {
using namespace mbgl::style;
using namespace mbgl::style::conversion;
Error error;
optional<Filter> converted = convert<Filter>(Value(env, jfilter), error);
if (!converted) {
mbgl::Log::Error(mbgl::Event::JNI, "Error setting filter: " + error.message);
return;
}
layer.accept(SetFilterEvaluator {std::move(*converted)});
}
struct GetFilterEvaluator {
mbgl::style::Filter noop(std::string layerType) {
Log::Warning(mbgl::Event::JNI, "%s doesn't support filter", layerType.c_str());
return {};
}
mbgl::style::Filter operator()(style::BackgroundLayer&) { return noop("BackgroundLayer"); }
mbgl::style::Filter operator()(style::CustomLayer&) { return noop("CustomLayer"); }
mbgl::style::Filter operator()(style::RasterLayer&) { return noop("RasterLayer"); }
mbgl::style::Filter operator()(style::HillshadeLayer&) { return noop("HillshadeLayer"); }
template <class LayerType>
mbgl::style::Filter operator()(LayerType& layer) {
return layer.getFilter();
}
};
jni::Object<gson::JsonElement> Layer::getFilter(jni::JNIEnv& env) {
using namespace mbgl::style;
using namespace mbgl::style::conversion;
Filter filter = layer.accept(GetFilterEvaluator());
jni::Object<gson::JsonElement> converted;
if (filter.is<ExpressionFilter>()) {
ExpressionFilter filterExpression = filter.get<ExpressionFilter>();
mbgl::Value expressionValue = filterExpression.expression.get()->serialize();
converted = gson::JsonElement::New(env, expressionValue);
}
return converted;
}
struct SetSourceLayerEvaluator {
std::string sourceLayer;
void operator()(style::BackgroundLayer&) { Log::Warning(mbgl::Event::JNI, "BackgroundLayer doesn't support source layer"); }
void operator()(style::CustomLayer&) { Log::Warning(mbgl::Event::JNI, "CustomLayer doesn't support source layer"); }
void operator()(style::RasterLayer&) { Log::Warning(mbgl::Event::JNI, "RasterLayer doesn't support source layer"); }
void operator()(style::HillshadeLayer&) { Log::Warning(mbgl::Event::JNI, "HillshadeLayer doesn't support source layer"); }
template <class LayerType>
void operator()(LayerType& layer) {
layer.setSourceLayer(sourceLayer);
}
};
void Layer::setSourceLayer(jni::JNIEnv& env, jni::String sourceLayer) {
layer.accept(SetSourceLayerEvaluator {jni::Make<std::string>(env, sourceLayer)});
}
struct GetSourceLayerEvaluator {
std::string noop(std::string layerType) {
Log::Warning(mbgl::Event::JNI, "%s doesn't support source layer", layerType.c_str());
return {};
}
std::string operator()(style::BackgroundLayer&) { return noop("BackgroundLayer"); }
std::string operator()(style::CustomLayer&) { return noop("CustomLayer"); }
std::string operator()(style::RasterLayer&) { return noop("RasterLayer"); }
std::string operator()(style::HillshadeLayer&) { return noop("HillshadeLayer"); }
template <class LayerType>
std::string operator()(LayerType& layer) {
return layer.getSourceLayer();
}
};
jni::String Layer::getSourceLayer(jni::JNIEnv& env) {
return jni::Make<jni::String>(env, layer.accept(GetSourceLayerEvaluator()));
}
jni::jfloat Layer::getMinZoom(jni::JNIEnv&){
return layer.getMinZoom();
}
jni::jfloat Layer::getMaxZoom(jni::JNIEnv&) {
return layer.getMaxZoom();
}
void Layer::setMinZoom(jni::JNIEnv&, jni::jfloat zoom) {
layer.setMinZoom(zoom);
}
void Layer::setMaxZoom(jni::JNIEnv&, jni::jfloat zoom) {
layer.setMaxZoom(zoom);
}
jni::Object<jni::ObjectTag> Layer::getVisibility(jni::JNIEnv& env) {
using namespace mbgl::android::conversion;
return jni::Object<jni::ObjectTag>(*convert<jni::jobject*>(env, layer.getVisibility()));
}
jni::Class<Layer> Layer::javaClass;
void Layer::registerNative(jni::JNIEnv& env) {
// Lookup the class
Layer::javaClass = *jni::Class<Layer>::Find(env).NewGlobalRef(env).release();
#define METHOD(MethodPtr, name) jni::MakeNativePeerMethod<decltype(MethodPtr), (MethodPtr)>(name)
// Register the peer
jni::RegisterNativePeer<Layer>(env, Layer::javaClass, "nativePtr",
METHOD(&Layer::getId, "nativeGetId"),
METHOD(&Layer::setLayoutProperty, "nativeSetLayoutProperty"),
METHOD(&Layer::setPaintProperty, "nativeSetPaintProperty"),
METHOD(&Layer::setFilter, "nativeSetFilter"),
METHOD(&Layer::getFilter, "nativeGetFilter"),
METHOD(&Layer::setSourceLayer, "nativeSetSourceLayer"),
METHOD(&Layer::getSourceLayer, "nativeGetSourceLayer"),
METHOD(&Layer::getMinZoom, "nativeGetMinZoom"),
METHOD(&Layer::getMaxZoom, "nativeGetMaxZoom"),
METHOD(&Layer::setMinZoom, "nativeSetMinZoom"),
METHOD(&Layer::setMaxZoom, "nativeSetMaxZoom"),
METHOD(&Layer::getVisibility, "nativeGetVisibility")
);
}
} // namespace android
} // namespace mbgl
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