[android] jni high level binding refactor

1 files changed, 49 insertions, 0 deletions

diff --git a/platform/android/src/annotation/polygon.cpp b/platform/android/src/annotation/polygon.cpp
new file mode 100644
index 0000000000..ba82fc34dc
--- /dev/null
+++ b/platform/android/src/annotation/polygon.cpp
@@ -0,0 +1,49 @@
+#include "polygon.hpp"
+
+#include "../conversion/color.hpp"
+
+namespace mbgl {
+namespace android {
+
+jni::Class<Polygon> Polygon::javaClass;
+
+mbgl::FillAnnotation Polygon::toAnnotation(jni::JNIEnv& env, jni::Object<Polygon> polygon) {
+    auto points = Polygon::getPoints(env, polygon);
+
+    mbgl::FillAnnotation annotation { mbgl::Polygon<double> { MultiPoint::toGeometry<mbgl::LinearRing<double>>(env, points) } };
+    annotation.opacity = { Polygon::getOpacity(env, polygon) };
+    annotation.color = { Polygon::getFillColor(env, polygon) };
+    annotation.outlineColor = { Polygon::getOutlineColor(env, polygon) };
+
+    jni::DeleteLocalRef(env, points);
+
+    return annotation;
+}
+
+jni::Object<java::util::List> Polygon::getPoints(jni::JNIEnv& env, jni::Object<Polygon> polygon) {
+    static auto field = Polygon::javaClass.GetField<jni::Object<java::util::List>>(env, "points");
+    return polygon.Get(env, field);
+}
+
+float Polygon::getOpacity(jni::JNIEnv& env, jni::Object<Polygon> polygon) {
+    static auto field = Polygon::javaClass.GetField<float>(env, "alpha");
+    return polygon.Get(env, field);
+}
+
+mbgl::Color Polygon::getFillColor(jni::JNIEnv& env, jni::Object<Polygon> polygon) {
+    static auto field = Polygon::javaClass.GetField<int>(env, "fillColor");
+    return *conversion::convert<mbgl::Color, int>(env, polygon.Get(env, field));
+}
+
+mbgl::Color Polygon::getOutlineColor(jni::JNIEnv& env, jni::Object<Polygon> polygon) {
+    static auto field = Polygon::javaClass.GetField<int>(env, "strokeColor");
+    return *conversion::convert<mbgl::Color, int>(env, polygon.Get(env, field));
+}
+
+void Polygon::registerNative(jni::JNIEnv& env) {
+    Polygon::javaClass = *jni::Class<Polygon>::Find(env).NewGlobalRef(env).release();
+}
+
+
+} // namespace android
+} // namespace mbgl
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