Per-attribute transition properties on MGLStyleLayer (#8225)

* [ios, macos] new struct MGLTransition

* [ios] MGLTransition struct moved to MGLTypes.h

* [ios] MGLTransition implemented for style layer properties

* [ios, macos] added support for getting property transitions

* [ios, macos] updated to MGLDurationFromTimeInterval and MGLTimeIntervalFromDuration

* [ios, macos] added transition properties test

* [ios, macos] modified key strings imp

* [ios, macos] The impl for transition properties were changed to public methods

* [ios, macos] Changelog update

* [ios] Fixed layer space formatting

* [core] The name space was fixed for getters that returned TransitionOptions

* [ios, macos] Added rawLayer transition property tests

* [ios] Added a factory method for MGLTransition and transition-related methods to NSValue(MGLAdditions)

* [ios, macos] Copyedited changelog blurbs about transition properties

1 files changed, 10 insertions, 0 deletions

diff --git a/include/mbgl/style/layers/circle_layer.hpp b/include/mbgl/style/layers/circle_layer.hpp
index 35db4b3962..c12d476706 100644
--- a/include/mbgl/style/layers/circle_layer.hpp
+++ b/include/mbgl/style/layers/circle_layer.hpp
@@ -33,51 +33,61 @@ public:
     DataDrivenPropertyValue<float> getCircleRadius(const optional<std::string>& klass = {}) const;
     void setCircleRadius(DataDrivenPropertyValue<float>, const optional<std::string>& klass = {});
     void setCircleRadiusTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleRadiusTransition(const optional<std::string>& klass = {}) const;
 
     static DataDrivenPropertyValue<Color> getDefaultCircleColor();
     DataDrivenPropertyValue<Color> getCircleColor(const optional<std::string>& klass = {}) const;
     void setCircleColor(DataDrivenPropertyValue<Color>, const optional<std::string>& klass = {});
     void setCircleColorTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleColorTransition(const optional<std::string>& klass = {}) const;
 
     static DataDrivenPropertyValue<float> getDefaultCircleBlur();
     DataDrivenPropertyValue<float> getCircleBlur(const optional<std::string>& klass = {}) const;
     void setCircleBlur(DataDrivenPropertyValue<float>, const optional<std::string>& klass = {});
     void setCircleBlurTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleBlurTransition(const optional<std::string>& klass = {}) const;
 
     static DataDrivenPropertyValue<float> getDefaultCircleOpacity();
     DataDrivenPropertyValue<float> getCircleOpacity(const optional<std::string>& klass = {}) const;
     void setCircleOpacity(DataDrivenPropertyValue<float>, const optional<std::string>& klass = {});
     void setCircleOpacityTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleOpacityTransition(const optional<std::string>& klass = {}) const;
 
     static PropertyValue<std::array<float, 2>> getDefaultCircleTranslate();
     PropertyValue<std::array<float, 2>> getCircleTranslate(const optional<std::string>& klass = {}) const;
     void setCircleTranslate(PropertyValue<std::array<float, 2>>, const optional<std::string>& klass = {});
     void setCircleTranslateTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleTranslateTransition(const optional<std::string>& klass = {}) const;
 
     static PropertyValue<TranslateAnchorType> getDefaultCircleTranslateAnchor();
     PropertyValue<TranslateAnchorType> getCircleTranslateAnchor(const optional<std::string>& klass = {}) const;
     void setCircleTranslateAnchor(PropertyValue<TranslateAnchorType>, const optional<std::string>& klass = {});
     void setCircleTranslateAnchorTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleTranslateAnchorTransition(const optional<std::string>& klass = {}) const;
 
     static PropertyValue<CirclePitchScaleType> getDefaultCirclePitchScale();
     PropertyValue<CirclePitchScaleType> getCirclePitchScale(const optional<std::string>& klass = {}) const;
     void setCirclePitchScale(PropertyValue<CirclePitchScaleType>, const optional<std::string>& klass = {});
     void setCirclePitchScaleTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCirclePitchScaleTransition(const optional<std::string>& klass = {}) const;
 
     static DataDrivenPropertyValue<float> getDefaultCircleStrokeWidth();
     DataDrivenPropertyValue<float> getCircleStrokeWidth(const optional<std::string>& klass = {}) const;
     void setCircleStrokeWidth(DataDrivenPropertyValue<float>, const optional<std::string>& klass = {});
     void setCircleStrokeWidthTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleStrokeWidthTransition(const optional<std::string>& klass = {}) const;
 
     static DataDrivenPropertyValue<Color> getDefaultCircleStrokeColor();
     DataDrivenPropertyValue<Color> getCircleStrokeColor(const optional<std::string>& klass = {}) const;
     void setCircleStrokeColor(DataDrivenPropertyValue<Color>, const optional<std::string>& klass = {});
     void setCircleStrokeColorTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleStrokeColorTransition(const optional<std::string>& klass = {}) const;
 
     static DataDrivenPropertyValue<float> getDefaultCircleStrokeOpacity();
     DataDrivenPropertyValue<float> getCircleStrokeOpacity(const optional<std::string>& klass = {}) const;
     void setCircleStrokeOpacity(DataDrivenPropertyValue<float>, const optional<std::string>& klass = {});
     void setCircleStrokeOpacityTransition(const TransitionOptions&, const optional<std::string>& klass = {});
+    TransitionOptions getCircleStrokeOpacityTransition(const optional<std::string>& klass = {}) const;
 
     // Private implementation