Add back scale functionality

src/file/paragraph/run/picture-run.ts

@@ -1,9 +1,11 @@
 import { Drawing } from "../../drawing";
+import { DrawingOptions } from "../../drawing/drawing";
 import { IMediaData } from "../../media/data";
 import { Run } from "../run";
-import { DrawingOptions } from "../../drawing/drawing";
 
 export class PictureRun extends Run {
+    private drawing: Drawing;
+
     constructor(imageData: IMediaData, drawingOptions?: DrawingOptions) {
         super();
 
@@ -11,6 +13,20 @@ export class PictureRun extends Run {
             throw new Error("imageData cannot be undefined");
         }
 
-        this.root.push(new Drawing(imageData, drawingOptions));
+        this.drawing = new Drawing(imageData, drawingOptions);
+
+        this.root.push(this.drawing);
+    }
+
+    public scale(factorX: number, factorY?: number): void {
+        if (!factorX) {
+            factorX = 1;
+        }
+
+        if (!factorY) {
+            factorY = factorX;
+        }
+
+        this.drawing.scale(factorX, factorY);
     }
 }