fix(modules): add stylus loader as an option to be uncommented (#3710)

extensions/cornerstone/src/services/SegmentationService/SegmentationService.ts

@@ -189,7 +189,7 @@ class SegmentationService extends PubSubService {
         );
       }
 
-      if (active !== undefined) {
+      if (active === true) {
         this._setActiveSegment(segmentationId, segmentIndex, suppressEvents);
       }
 
@@ -399,6 +399,23 @@ class SegmentationService extends PubSubService {
     return segmentations && segmentations.map(m => this.segmentations[Object.keys(m)[0]]);
   }
 
+  public getActiveSegmentation(): Segmentation {
+    const segmentations = this.getSegmentations();
+
+    return segmentations.find(segmentation => segmentation.isActive);
+  }
+
+  public getActiveSegment() {
+    const activeSegmentation = this.getActiveSegmentation();
+    const { activeSegmentIndex, segments } = activeSegmentation;
+
+    if (activeSegmentIndex === null) {
+      return;
+    }
+
+    return segments[activeSegmentIndex];
+  }
+
   /**
    * Get specific segmentation by its id.
    *