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, 40 insertions, 0 deletions

diff --git a/src/mbgl/style/layers/circle_layer.cpp b/src/mbgl/style/layers/circle_layer.cpp
index 53248e9397..a628d7a417 100644
--- a/src/mbgl/style/layers/circle_layer.cpp
+++ b/src/mbgl/style/layers/circle_layer.cpp
@@ -88,6 +88,10 @@ void CircleLayer::setCircleRadiusTransition(const TransitionOptions& value, cons
     impl->paint.setTransition<CircleRadius>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleRadiusTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleRadius>(klass);
+}
+
 DataDrivenPropertyValue<Color> CircleLayer::getDefaultCircleColor() {
     return { Color::black() };
 }
@@ -111,6 +115,10 @@ void CircleLayer::setCircleColorTransition(const TransitionOptions& value, const
     impl->paint.setTransition<CircleColor>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleColorTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleColor>(klass);
+}
+
 DataDrivenPropertyValue<float> CircleLayer::getDefaultCircleBlur() {
     return { 0 };
 }
@@ -134,6 +142,10 @@ void CircleLayer::setCircleBlurTransition(const TransitionOptions& value, const
     impl->paint.setTransition<CircleBlur>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleBlurTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleBlur>(klass);
+}
+
 DataDrivenPropertyValue<float> CircleLayer::getDefaultCircleOpacity() {
     return { 1 };
 }
@@ -157,6 +169,10 @@ void CircleLayer::setCircleOpacityTransition(const TransitionOptions& value, con
     impl->paint.setTransition<CircleOpacity>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleOpacityTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleOpacity>(klass);
+}
+
 PropertyValue<std::array<float, 2>> CircleLayer::getDefaultCircleTranslate() {
     return { {{ 0, 0 }} };
 }
@@ -176,6 +192,10 @@ void CircleLayer::setCircleTranslateTransition(const TransitionOptions& value, c
     impl->paint.setTransition<CircleTranslate>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleTranslateTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleTranslate>(klass);
+}
+
 PropertyValue<TranslateAnchorType> CircleLayer::getDefaultCircleTranslateAnchor() {
     return { TranslateAnchorType::Map };
 }
@@ -195,6 +215,10 @@ void CircleLayer::setCircleTranslateAnchorTransition(const TransitionOptions& va
     impl->paint.setTransition<CircleTranslateAnchor>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleTranslateAnchorTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleTranslateAnchor>(klass);
+}
+
 PropertyValue<CirclePitchScaleType> CircleLayer::getDefaultCirclePitchScale() {
     return { CirclePitchScaleType::Map };
 }
@@ -214,6 +238,10 @@ void CircleLayer::setCirclePitchScaleTransition(const TransitionOptions& value,
     impl->paint.setTransition<CirclePitchScale>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCirclePitchScaleTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CirclePitchScale>(klass);
+}
+
 DataDrivenPropertyValue<float> CircleLayer::getDefaultCircleStrokeWidth() {
     return { 0 };
 }
@@ -237,6 +265,10 @@ void CircleLayer::setCircleStrokeWidthTransition(const TransitionOptions& value,
     impl->paint.setTransition<CircleStrokeWidth>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleStrokeWidthTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleStrokeWidth>(klass);
+}
+
 DataDrivenPropertyValue<Color> CircleLayer::getDefaultCircleStrokeColor() {
     return { Color::black() };
 }
@@ -260,6 +292,10 @@ void CircleLayer::setCircleStrokeColorTransition(const TransitionOptions& value,
     impl->paint.setTransition<CircleStrokeColor>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleStrokeColorTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleStrokeColor>(klass);
+}
+
 DataDrivenPropertyValue<float> CircleLayer::getDefaultCircleStrokeOpacity() {
     return { 1 };
 }
@@ -283,5 +319,9 @@ void CircleLayer::setCircleStrokeOpacityTransition(const TransitionOptions& valu
     impl->paint.setTransition<CircleStrokeOpacity>(value, klass);
 }
 
+TransitionOptions CircleLayer::getCircleStrokeOpacityTransition(const optional<std::string>& klass) const {
+    return impl->paint.getTransition<CircleStrokeOpacity>(klass);
+}
+
 } // namespace style
 } // namespace mbgl