Moved static GetDepth to getDepth class method

src/Components/ElementsSidebar/ElementsSidebar.tsx

@@ -29,7 +29,7 @@ export class ElementsSidebar extends React.Component<IElementsSidebarProps> {
 
     const containerRows: React.ReactNode[] = [];
     this.iterateChilds((container: Container) => {
-      const depth: number = Container.getDepth(container);
+      const depth: number = container.getDepth();
       const key = container.props.properties.id.toString();
       const text = '|\t'.repeat(depth) + key;
       const selectedClass: string = this.props.SelectedContainer !== null &&

src/Components/SVG/Elements/Container.tsx

@@ -40,6 +40,18 @@ export class Container extends React.Component<IContainerProps> {
     }
   }
 
+  public getDepth() {
+    let depth = 0;
+
+    let current: Container | null = this.props.parent;
+    while (current != null) {
+      depth++;
+      current = current.props.parent;
+    }
+
+    return depth;
+  }
+
   public render(): React.ReactNode {
     const containersElements = this.props.children.map(child => child.render());
     const defaultStyle = {
@@ -69,16 +81,4 @@ export class Container extends React.Component<IContainerProps> {
       </g>
     );
   }
-
-  public static getDepth(container: Container): number {
-    let depth = 0;
-
-    let current: Container | null = container.props.parent;
-    while (current != null) {
-      depth++;
-      current = current.props.parent;
-    }
-
-    return depth;
-  }
 }