Experiments in looking quickly at style functionsupstream/1ec5-quick-look

2 files changed, 22 insertions, 0 deletions

diff --git a/platform/darwin/src/MGLStyleValue.mm b/platform/darwin/src/MGLStyleValue.mm
index 4dd6b550d8..a16be09ba5 100644
--- a/platform/darwin/src/MGLStyleValue.mm
+++ b/platform/darwin/src/MGLStyleValue.mm
@@ -52,6 +52,10 @@ const MGLStyleFunctionOption MGLStyleFunctionOptionDefaultValue = @"MGLStyleFunc
     return [self.rawValue debugDescription];
 }
 
+- (id)debugQuickLookObject {
+    return self.rawValue;
+}
+
 - (BOOL)isEqual:(MGLConstantStyleValue *)other {
     return [other isKindOfClass:[self class]] && [other.rawValue isEqual:self.rawValue];
 }
@@ -155,6 +159,21 @@ const MGLStyleFunctionOption MGLStyleFunctionOptionDefaultValue = @"MGLStyleFunc
             self.interpolationBase];
 }
 
+- (id)debugQuickLookObject {
+    UIBezierPath *path = [UIBezierPath bezierPath];
+    [path moveToPoint:CGPointMake(0, 0)];
+    [self.stops enumerateKeysAndObjectsUsingBlock:^(NSNumber * _Nonnull zoomLevel, id _Nonnull obj, BOOL * _Nonnull stop) {
+        NSNumber *value = obj;
+        if (![value isKindOfClass:[NSNumber class]]) {
+            *stop = YES;
+            return;
+        }
+        [path addCurveToPoint:CGPointMake([zoomLevel doubleValue] * 20, [value doubleValue]) controlPoint1:CGPointMake(([zoomLevel doubleValue] - 0.7) * 20, [value doubleValue]) controlPoint2:CGPointMake(([zoomLevel doubleValue] - 0.3) * 20, [value doubleValue])];
+    }];
+    [path stroke];
+    return path;
+}
+
 - (BOOL)isEqual:(MGLCameraStyleFunction *)other {
     return ([other isKindOfClass:[self class]]
             && other.interpolationMode == self.interpolationMode
diff --git a/platform/ios/app/MBXViewController.m b/platform/ios/app/MBXViewController.m
index d3927374a7..9fea1820c4 100644
--- a/platform/ios/app/MBXViewController.m
+++ b/platform/ios/app/MBXViewController.m
@@ -1826,6 +1826,9 @@ typedef NS_ENUM(NSInteger, MBXSettingsMiscellaneousRows) {
     // that a device with an English-language locale is already effectively
     // using locale-based country labels.
     _usingLocaleBasedCountryLabels = [[self bestLanguageForUser] isEqualToString:@"en"];
+    
+    MGLStyleLayer *layer = [style layerWithIdentifier:@"road-secondary-tertiary"];
+    NSLog(@"%@", layer);
 }
 
 - (void)mapViewRegionIsChanging:(MGLMapView *)mapView