style::Style::getImage() returns optional<style::Image>

include/mbgl/style/image.hpp

@@ -69,6 +69,7 @@ public:
 
     class Impl;
     Immutable<Impl> baseImpl;
+    explicit Image(Immutable<Impl> baseImpl_) : baseImpl(std::move(baseImpl_)) {}
 };
 
 } // namespace style

include/mbgl/style/style.hpp

@@ -1,9 +1,9 @@
 #pragma once
 
 #include <mbgl/map/camera.hpp>
+#include <mbgl/style/image.hpp>
 #include <mbgl/style/transition_options.hpp>
 #include <mbgl/util/geo.hpp>
-#include <mbgl/util/image.hpp>
 #include <mbgl/util/immutable.hpp>
 
 #include <string>
@@ -17,7 +17,6 @@ class FileSource;
 namespace style {
 
 class Light;
-class Image;
 class Source;
 class Layer;
 
@@ -47,7 +46,7 @@ public:
     void setLight(std::unique_ptr<Light>);
 
     // Images
-    const PremultipliedImage* getImage(const std::string&) const;
+    optional<Image> getImage(const std::string&) const;
     void addImage(std::unique_ptr<Image>);
     void removeImage(const std::string&);
 

platform/android/src/native_map_view.cpp

@@ -1099,8 +1099,8 @@ void NativeMapView::removeImage(JNIEnv& env, const jni::String& name) {
 }
 
 jni::Local<jni::Object<Bitmap>> NativeMapView::getImage(JNIEnv& env, const jni::String& name) {
-    if (auto* image = map->getStyle().getImage(jni::Make<std::string>(env, name))) {
-        return Bitmap::CreateBitmap(env, *image);
+    if (auto image = map->getStyle().getImage(jni::Make<std::string>(env, name))) {
+        return Bitmap::CreateBitmap(env, image->getImage());
     }
     return jni::Local<jni::Object<Bitmap>>();
 }

platform/darwin/src/MGLStyle.mm

@@ -528,7 +528,7 @@ static_assert(6 == mbgl::util::default_styles::numOrderedStyles,
     }
 
     auto styleImage = self.rawStyle->getImage([name UTF8String]);
-    return styleImage ? [[MGLImage alloc] initWithMGLStyleImage:styleImage] : nil;
+    return styleImage ? [[MGLImage alloc] initWithMGLStyleImage:&(*styleImage)] : nil;
 }
 
 #pragma mark Style transitions

src/mbgl/map/map_impl.cpp

@@ -170,9 +170,7 @@ void Map::Impl::jumpTo(const CameraOptions& camera) {
 }
 
 void Map::Impl::onStyleImageMissing(const std::string& id, std::function<void()> done) {
-    if (style->getImage(id) == nullptr) {
-        observer.onStyleImageMissing(id);
-    }
+    if (!style->getImage(id)) observer.onStyleImageMissing(id);
 
     done();
     onUpdate();

src/mbgl/style/style.cpp

@@ -60,11 +60,10 @@ const Light* Style::getLight() const {
     return impl->getLight();
 }
 
-const PremultipliedImage* Style::getImage(const std::string& name) const {
-    if (auto* image = impl->getImage(name)) {
-        return &(image->image);
-    }
-    return nullptr;
+optional<Image> Style::getImage(const std::string& name) const {
+    auto image = impl->getImage(name);
+    if (!image) return nullopt;
+    return style::Image(std::move(*image));
 }
 
 void Style::addImage(std::unique_ptr<Image> image) {

src/mbgl/style/style_impl.cpp

@@ -301,10 +301,10 @@ void Style::Impl::removeImage(const std::string& id) {
     images = std::move(newImages);
 }
 
-const style::Image::Impl* Style::Impl::getImage(const std::string& id) const {
+optional<Immutable<style::Image::Impl>> Style::Impl::getImage(const std::string& id) const {
     auto found = std::find_if(images->begin(), images->end(), [&id](const auto& image) { return image->id == id; });
-    if (found == images->end()) return nullptr;
-    return found->get();
+    if (found == images->end()) return nullopt;
+    return *found;
 }
 
 void Style::Impl::setObserver(style::Observer* observer_) {

src/mbgl/style/style_impl.hpp

@@ -78,7 +78,7 @@ public:
     void setLight(std::unique_ptr<Light>);
     Light* getLight() const;
 
-    const style::Image::Impl* getImage(const std::string&) const;
+    optional<Immutable<style::Image::Impl>> getImage(const std::string&) const;
     void addImage(std::unique_ptr<style::Image>);
     void removeImage(const std::string&);