[core] generated accessor methods on light

11 files changed, 332 insertions, 69 deletions

diff --git a/cmake/core-files.cmake b/cmake/core-files.cmake
index 80e9f16156..e9d7442e5d 100644
--- a/cmake/core-files.cmake
+++ b/cmake/core-files.cmake
@@ -327,6 +327,11 @@ set(MBGL_CORE_FILES
     src/mbgl/style/layer_impl.hpp
     src/mbgl/style/layer_observer.hpp
     src/mbgl/style/layout_property.hpp
+    src/mbgl/style/light.cpp
+    src/mbgl/style/light_impl.cpp
+    src/mbgl/style/light_impl.hpp
+    src/mbgl/style/light_observer.hpp
+    src/mbgl/style/light_properties.hpp
     src/mbgl/style/observer.hpp
     src/mbgl/style/paint_property.hpp
     src/mbgl/style/parser.cpp
diff --git a/include/mbgl/style/conversion/light.hpp b/include/mbgl/style/conversion/light.hpp
index 631ed04ccb..30bb906037 100644
--- a/include/mbgl/style/conversion/light.hpp
+++ b/include/mbgl/style/conversion/light.hpp
@@ -28,7 +28,7 @@ public:
                 convert<PropertyValue<LightAnchorType>>(*anchor, error);
 
             if (convertedAnchor) {
-                light.get<LightAnchor>().value = *convertedAnchor;
+                light.setAnchor(*convertedAnchor);
             } else {
                 return {};
             }
@@ -39,7 +39,7 @@ public:
             optional<TransitionOptions> transition =
                 convert<TransitionOptions>(*anchorTransition, error);
             if (transition) {
-                light.get<LightAnchor>().transition = *transition;
+                light.setAnchorTransition(*transition);
             } else {
                 return {};
             }
@@ -51,7 +51,7 @@ public:
                 convert<PropertyValue<Color>>(*color, error);
 
             if (convertedColor) {
-                light.get<LightColor>().value = *convertedColor;
+                light.setColor(*convertedColor);
             } else {
                 return {};
             }
@@ -62,7 +62,7 @@ public:
             optional<TransitionOptions> transition =
                 convert<TransitionOptions>(*colorTransition, error);
             if (transition) {
-                light.get<LightColor>().transition = *transition;
+                light.setColorTransition(*transition);
             } else {
                 return {};
             }
@@ -74,7 +74,7 @@ public:
                 convert<PropertyValue<Position>>(*position, error);
 
             if (convertedPosition) {
-                light.get<LightPosition>().value = *convertedPosition;
+                light.setPosition(*convertedPosition);
             } else {
                 return {};
             }
@@ -85,7 +85,7 @@ public:
             optional<TransitionOptions> transition =
                 convert<TransitionOptions>(*positionTransition, error);
             if (transition) {
-                light.get<LightPosition>().transition = *transition;
+                light.setPositionTransition(*transition);
             } else {
                 return {};
             }
@@ -97,7 +97,7 @@ public:
                 convert<PropertyValue<float>>(*intensity, error);
 
             if (convertedIntensity) {
-                light.get<LightIntensity>().value = *convertedIntensity;
+                light.setIntensity(*convertedIntensity);
             } else {
                 return {};
             }
@@ -108,7 +108,7 @@ public:
             optional<TransitionOptions> transition =
                 convert<TransitionOptions>(*intensityTransition, error);
             if (transition) {
-                light.get<LightIntensity>().transition = *transition;
+                light.setIntensityTransition(*transition);
             } else {
                 return {};
             }
diff --git a/include/mbgl/style/light.hpp b/include/mbgl/style/light.hpp
index bec8e6ddeb..7942d0d237 100644
--- a/include/mbgl/style/light.hpp
+++ b/include/mbgl/style/light.hpp
@@ -1,52 +1,48 @@
-#pragma once
+// This file is generated. Do not edit.
 
+#pragma once
 #include <mbgl/style/property_value.hpp>
 #include <mbgl/style/transition_options.hpp>
 #include <mbgl/style/types.hpp>
-#include <mbgl/style/position.hpp>
-#include <mbgl/util/color.hpp>
-#include <mbgl/util/indexed_tuple.hpp>
 
 namespace mbgl {
-namespace style {
 
-template <class T>
-class LightProperty {
-public:
-    using Type = T;
-    using ValueType = PropertyValue<T>;
+class RenderLight;
 
-    PropertyValue<T> value;
-    TransitionOptions transition;
-};
-
-struct LightAnchor : LightProperty<LightAnchorType> {
-    static LightAnchorType defaultValue() {
-        return LightAnchorType::Viewport;
-    }
-};
-
-struct LightPosition : LightProperty<Position> {
-    static Position defaultValue() {
-        std::array<float, 3> default_ = { { 1.15, 210, 30 } };
-        return Position{ { default_ } };
-    }
-};
+namespace style {
 
-struct LightColor : LightProperty<Color> {
-    static Color defaultValue() {
-        return Color::white();
-    }
-};
+class Light {
+public:
 
-struct LightIntensity : LightProperty<float> {
-    static float defaultValue() {
-        return 0.5;
-    }
+    static LightAnchorType getDefaultAnchor();
+    PropertyValue<LightAnchorType> getAnchor() const;
+    void setAnchor(PropertyValue<LightAnchorType>);
+    void setAnchorTransition(const TransitionOptions&);
+    TransitionOptions getAnchorTransition() const;
+
+    static Position getDefaultPosition();
+    PropertyValue<Position> getPosition() const;
+    void setPosition(PropertyValue<Position>);
+    void setPositionTransition(const TransitionOptions&);
+    TransitionOptions getPositionTransition() const;
+
+    static Color getDefaultColor();
+    PropertyValue<Color> getColor() const;
+    void setColor(PropertyValue<Color>);
+    void setColorTransition(const TransitionOptions&);
+    TransitionOptions getColorTransition() const;
+
+    static float getDefaultIntensity();
+    PropertyValue<float> getIntensity() const;
+    void setIntensity(PropertyValue<float>);
+    void setIntensityTransition(const TransitionOptions&);
+    TransitionOptions getIntensityTransition() const;
+
+private:
+    IndexedTuple<LightProperties, LightProperties> properties;
+
+    friend class mbgl::RenderLight;
 };
 
-using LightProperties = TypeList<LightAnchor, LightPosition, LightColor, LightIntensity>;
-class Light : public IndexedTuple<LightProperties, LightProperties> {};
-
 } // namespace style
 } // namespace mbgl
diff --git a/include/mbgl/style/light.hpp.ejs b/include/mbgl/style/light.hpp.ejs
new file mode 100644
index 0000000000..40f85b66b5
--- /dev/null
+++ b/include/mbgl/style/light.hpp.ejs
@@ -0,0 +1,35 @@
+<%
+  const properties = locals.properties;
+-%>
+// This file is generated. Do not edit.
+
+#pragma once
+#include <mbgl/style/property_value.hpp>
+#include <mbgl/style/transition_options.hpp>
+#include <mbgl/style/types.hpp>
+
+namespace mbgl {
+
+class RenderLight;
+
+namespace style {
+
+class Light {
+public:
+
+<% for (const property of properties) { -%>
+    static <%- evaluatedType(property) %> getDefault<%- camelize(property.name) %>();
+    <%- propertyValueType(property) %> get<%- camelize(property.name) %>() const;
+    void set<%- camelize(property.name) %>(<%- propertyValueType(property) %>);
+    void set<%- camelize(property.name) %>Transition(const TransitionOptions&);
+    TransitionOptions get<%- camelize(property.name) %>Transition() const;
+
+<% } -%>
+private:
+    IndexedTuple<LightProperties, LightProperties> properties;
+
+    friend class mbgl::RenderLight;
+};
+
+} // namespace style
+} // namespace mbgl
diff --git a/scripts/generate-style-code.js b/scripts/generate-style-code.js
index 9629c8fe45..c169c4ecd5 100644
--- a/scripts/generate-style-code.js
+++ b/scripts/generate-style-code.js
@@ -18,6 +18,10 @@ global.isDataDriven = function (property) {
   return property['property-function'] === true;
 };
 
+global.isLightProperty = function (property) {
+  return property['light-property'] === true;
+};
+
 global.evaluatedType = function (property) {
   if (/-translate-anchor$/.test(property.name)) {
     return 'TranslateAnchorType';
@@ -25,6 +29,9 @@ global.evaluatedType = function (property) {
   if (/-(rotation|pitch|illumination)-alignment$/.test(property.name)) {
     return 'AlignmentType';
   }
+  if (/position/.test(property.name)) {
+    return 'Position';
+  }
   switch (property.type) {
   case 'boolean':
     return 'bool';
@@ -33,7 +40,7 @@ global.evaluatedType = function (property) {
   case 'string':
     return 'std::string';
   case 'enum':
-    return `${camelize(property.name)}Type`;
+    return (isLightProperty(property) ? 'Light' : '') + `${camelize(property.name)}Type`;
   case 'color':
     return `Color`;
   case 'array':
@@ -177,3 +184,17 @@ for (const layer of layers) {
 
 const propertySettersHpp = ejs.compile(fs.readFileSync('include/mbgl/style/conversion/make_property_setters.hpp.ejs', 'utf8'), {strict: true});
 writeIfModified('include/mbgl/style/conversion/make_property_setters.hpp', propertySettersHpp({layers: layers}));
+
+// Light
+const lightProperties = Object.keys(spec[`light`]).reduce((memo, name) => {
+  var property = spec[`light`][name];
+  property.name = name;
+  property['light-property'] = true;
+  memo.push(property);
+  return memo;
+}, []);
+
+const lightHpp = ejs.compile(fs.readFileSync('include/mbgl/style/light.hpp.ejs', 'utf8'), {strict: true});
+const lightCpp = ejs.compile(fs.readFileSync('src/mbgl/style/light.cpp.ejs', 'utf8'), {strict: true});
+writeIfModified(`include/mbgl/style/light.hpp`, lightHpp({properties: lightProperties}));
+writeIfModified(`src/mbgl/style/light.cpp`, lightCpp({properties: lightProperties}));
diff --git a/src/mbgl/renderer/render_light.cpp b/src/mbgl/renderer/render_light.cpp
index 6f154de2e2..faf89bf9e2 100644
--- a/src/mbgl/renderer/render_light.cpp
+++ b/src/mbgl/renderer/render_light.cpp
@@ -7,7 +7,7 @@ RenderLight::RenderLight(const style::Light light_)
 }
 
 void RenderLight::transition(const CascadeParameters& parameters) {
-    transitioning = TransitioningLight(light, std::move(transitioning), parameters);
+    transitioning = TransitioningLight(light.properties, std::move(transitioning), parameters);
 }
 
 void RenderLight::evaluate(const PropertyEvaluationParameters& parameters) {
diff --git a/src/mbgl/renderer/render_light.hpp b/src/mbgl/renderer/render_light.hpp
index e609550445..1a813ab1f8 100644
--- a/src/mbgl/renderer/render_light.hpp
+++ b/src/mbgl/renderer/render_light.hpp
@@ -69,8 +69,6 @@ public:
 using TransitioningLight = Transitioning<style::LightProperties>;
 using EvaluatedLight     = Evaluated<style::LightProperties>;
 
-class Painter;
-
 class RenderLight {
 public:
     RenderLight(const style::Light);
diff --git a/src/mbgl/style/light.cpp b/src/mbgl/style/light.cpp
new file mode 100644
index 0000000000..0a9cbbee9a
--- /dev/null
+++ b/src/mbgl/style/light.cpp
@@ -0,0 +1,115 @@
+// This file is generated. Do not edit.
+
+#include <mbgl/style/light.hpp>
+#include <mbgl/style/light_impl.hpp>
+#include <mbgl/style/light_properties.hpp>
+
+namespace mbgl {
+namespace style {
+
+LightAnchorType Light::getDefaultAnchor() {
+    return LightAnchor::defaultValue();
+}
+
+PropertyValue<LightAnchorType> Light::getAnchor() const {
+    return properties.get<LightAnchor>().value;
+}
+
+void Light::setAnchor(PropertyValue<LightAnchorType> property) {
+    properties.get<LightAnchor>().value = property;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+void Light::setAnchorTransition(const TransitionOptions& transition) {
+    properties.get<LightAnchor>().transition = transition;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+TransitionOptions Light::getAnchorTransition() const {
+    return properties.get<LightAnchor>().transition;
+}
+
+Position Light::getDefaultPosition() {
+    return LightPosition::defaultValue();
+}
+
+PropertyValue<Position> Light::getPosition() const {
+    return properties.get<LightPosition>().value;
+}
+
+void Light::setPosition(PropertyValue<Position> property) {
+    properties.get<LightPosition>().value = property;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+void Light::setPositionTransition(const TransitionOptions& transition) {
+    properties.get<LightPosition>().transition = transition;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+TransitionOptions Light::getPositionTransition() const {
+    return properties.get<LightPosition>().transition;
+}
+
+Color Light::getDefaultColor() {
+    return LightColor::defaultValue();
+}
+
+PropertyValue<Color> Light::getColor() const {
+    return properties.get<LightColor>().value;
+}
+
+void Light::setColor(PropertyValue<Color> property) {
+    properties.get<LightColor>().value = property;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+void Light::setColorTransition(const TransitionOptions& transition) {
+    properties.get<LightColor>().transition = transition;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+TransitionOptions Light::getColorTransition() const {
+    return properties.get<LightColor>().transition;
+}
+
+float Light::getDefaultIntensity() {
+    return LightIntensity::defaultValue();
+}
+
+PropertyValue<float> Light::getIntensity() const {
+    return properties.get<LightIntensity>().value;
+}
+
+void Light::setIntensity(PropertyValue<float> property) {
+    properties.get<LightIntensity>().value = property;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+void Light::setIntensityTransition(const TransitionOptions& transition) {
+    properties.get<LightIntensity>().transition = transition;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+TransitionOptions Light::getIntensityTransition() const {
+    return properties.get<LightIntensity>().transition;
+}
+
+} // namespace style
+} // namespace mbgl
diff --git a/src/mbgl/style/light.cpp.ejs b/src/mbgl/style/light.cpp.ejs
new file mode 100644
index 0000000000..7d2e0ecc1e
--- /dev/null
+++ b/src/mbgl/style/light.cpp.ejs
@@ -0,0 +1,42 @@
+<%
+  const properties = locals.properties;
+-%>
+// This file is generated. Do not edit.
+
+#include <mbgl/style/light.hpp>
+#include <mbgl/style/light_impl.hpp>
+#include <mbgl/style/light_properties.hpp>
+
+namespace mbgl {
+namespace style {
+
+<% for (const property of properties) { -%>
+<%- evaluatedType(property) %> Light::getDefault<%- camelize(property.name) %>() {
+    return Light<%- camelize(property.name) %>::defaultValue();
+}
+
+<%- propertyValueType(property) %> Light::get<%- camelize(property.name) %>() const {
+    return properties.get<Light<%- camelize(property.name) %>>().value;
+}
+
+void Light::set<%- camelize(property.name) %>(<%- propertyValueType(property) %> property) {
+    properties.get<Light<%- camelize(property.name) %>>().value = property;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+void Light::set<%- camelize(property.name) %>Transition(const TransitionOptions& transition) {
+    properties.get<Light<%- camelize(property.name) %>>().transition = transition;
+    if (observer) {
+        observer->onLightChanged(*this);
+    }
+}
+
+TransitionOptions Light::get<%- camelize(property.name) %>Transition() const {
+    return properties.get<Light<%- camelize(property.name) %>>().transition;
+}
+
+<% } -%>
+} // namespace style
+} // namespace mbgl
diff --git a/src/mbgl/style/light_properties.hpp b/src/mbgl/style/light_properties.hpp
new file mode 100644
index 0000000000..9f6088a633
--- /dev/null
+++ b/src/mbgl/style/light_properties.hpp
@@ -0,0 +1,51 @@
+#pragma once
+
+#include <mbgl/style/property_value.hpp>
+#include <mbgl/style/transition_options.hpp>
+#include <mbgl/style/types.hpp>
+#include <mbgl/style/position.hpp>
+#include <mbgl/util/color.hpp>
+#include <mbgl/util/indexed_tuple.hpp>
+
+namespace mbgl {
+namespace style {
+
+template <class T>
+class LightProperty {
+public:
+    using Type = T;
+    using ValueType = PropertyValue<T>;
+
+    PropertyValue<T> value;
+    TransitionOptions transition;
+};
+
+struct LightAnchor : LightProperty<LightAnchorType> {
+    static LightAnchorType defaultValue() {
+        return LightAnchorType::Viewport;
+    }
+};
+
+struct LightPosition : LightProperty<Position> {
+    static Position defaultValue() {
+        std::array<float, 3> default_ = { { 1.15, 210, 30 } };
+        return Position{ { default_ } };
+    }
+};
+
+struct LightColor : LightProperty<Color> {
+    static Color defaultValue() {
+        return Color::white();
+    }
+};
+
+struct LightIntensity : LightProperty<float> {
+    static float defaultValue() {
+        return 0.5;
+    }
+};
+
+using LightProperties = TypeList<LightAnchor, LightPosition, LightColor, LightIntensity>;
+
+} // namespace style
+} // namespace mbgl
diff --git a/test/style/conversion/light.test.cpp b/test/style/conversion/light.test.cpp
index da0fd3054a..a2185906d6 100644
--- a/test/style/conversion/light.test.cpp
+++ b/test/style/conversion/light.test.cpp
@@ -33,35 +33,35 @@ TEST(StyleConversion, Light) {
         auto light = parseLight("{\"color\":{\"stops\":[[14,\"blue\"],[16,\"red\"]]},\"intensity\":0.3,\"position\":[3,90,90]}");
         ASSERT_TRUE((bool) light);
 
-        ASSERT_TRUE(light->get<LightAnchor>().value.isUndefined());
-        ASSERT_FALSE(light->get<LightAnchor>().value.isConstant());
-        ASSERT_FALSE(light->get<LightAnchor>().value.isCameraFunction());
+        ASSERT_TRUE(light->getAnchor().isUndefined());
+        ASSERT_FALSE(light->getAnchor().isConstant());
+        ASSERT_FALSE(light->getAnchor().isCameraFunction());
 
-        ASSERT_FALSE(light->get<LightIntensity>().value.isUndefined());
-        ASSERT_TRUE(light->get<LightIntensity>().value.isConstant());
-        ASSERT_EQ(light->get<LightIntensity>().value.asConstant(), 0.3f);
-        ASSERT_FALSE(light->get<LightAnchor>().value.isCameraFunction());
+        ASSERT_FALSE(light->getIntensity().isUndefined());
+        ASSERT_TRUE(light->getIntensity().isConstant());
+        ASSERT_EQ(light->getIntensity().asConstant(), 0.3f);
+        ASSERT_FALSE(light->getAnchor().isCameraFunction());
 
-        ASSERT_FALSE(light->get<LightColor>().value.isUndefined());
-        ASSERT_FALSE(light->get<LightColor>().value.isConstant());
-        ASSERT_TRUE(light->get<LightColor>().value.isCameraFunction());
+        ASSERT_FALSE(light->getColor().isUndefined());
+        ASSERT_FALSE(light->getColor().isConstant());
+        ASSERT_TRUE(light->getColor().isCameraFunction());
 
-        ASSERT_FALSE(light->get<LightPosition>().value.isUndefined());
-        ASSERT_TRUE(light->get<LightPosition>().value.isConstant());
+        ASSERT_FALSE(light->getPosition().isUndefined());
+        ASSERT_TRUE(light->getPosition().isConstant());
         std::array<float, 3> expected{{ 3, 90, 90 }};
-        ASSERT_EQ(light->get<LightPosition>().value.asConstant(), mbgl::style::Position({ expected }));
-        ASSERT_FALSE(light->get<LightPosition>().value.isCameraFunction());
+        ASSERT_EQ(light->getPosition().asConstant(), mbgl::style::Position({ expected }));
+        ASSERT_FALSE(light->getPosition().isCameraFunction());
     }
 
     {
         auto light = parseLight("{\"color\":\"blue\",\"intensity\":0.3,\"color-transition\":{\"duration\":1000}}");
         ASSERT_TRUE((bool) light);
 
-        ASSERT_FALSE(light->get<LightColor>().value.isUndefined());
-        ASSERT_TRUE(light->get<LightColor>().value.isConstant());
-        ASSERT_FALSE(light->get<LightColor>().value.isCameraFunction());
-        ASSERT_EQ(light->get<LightColor>().transition.duration, mbgl::Duration(mbgl::Milliseconds(1000)));
-        ASSERT_FALSE((bool) light->get<LightColor>().transition.delay);
+        ASSERT_FALSE(light->getColor().isUndefined());
+        ASSERT_TRUE(light->getColor().isConstant());
+        ASSERT_FALSE(light->getColor().isCameraFunction());
+        ASSERT_EQ(light->getColorTransition().duration, mbgl::Duration(mbgl::Milliseconds(1000)));
+        ASSERT_FALSE((bool) light->getColorTransition().delay);
     }
 
     {