Initial work on Nucleus parity merge

Packages/ohif-viewerbase/client/lib/classes/ImageSet.js

@@ -0,0 +1,50 @@
+import { Random } from 'meteor/random';
+
+/**
+ * This class defines an ImageSet object which will be used across the viewer. This object represents
+ * a list of images that are associated by any arbitrary criteria being thus content agnostic. Besides the
+ * main attributes (images and uid) it allows additional attributes to be appended to it (currently
+ * indiscriminately, but this should be changed).
+ */
+export class ImageSet {
+
+    constructor(images) {
+
+        if (Array.isArray(images) !== true) {
+            throw new TypeError('ImageSet expects an array of images...');
+        }
+
+        // Main ImageSet attributes
+        this.images = images; // Array of images
+        this.uid = Random.id(); // Unique ID of the instance
+
+    }
+
+    setAttribute(attribute, value) {
+        this[attribute] = value;
+    }
+
+    getAttribute(attribute) {
+        return this[attribute];
+    }
+
+    setAttributes(attributes) {
+        if (typeof attributes === 'object' && attributes !== null) {
+            const imageSet = this, hasOwn = Object.prototype.hasOwnProperty;
+            for (let attribute in attributes) {
+                if (hasOwn.call(attributes, attribute)) {
+                    imageSet[attribute] = attributes[attribute];
+                }
+            }
+        }
+    }
+
+    getImage(index) {
+        return this.images[index];
+    }
+
+    sortBy(sortingCallback) {
+        return this.images.sort(sortingCallback);
+    }
+
+}