public ToolManager() { rulerTool = new RulerTool(this); angleTool = new AngleTool(this); selectTool = new SelectTool(this); pathTool = new PathTool(this); sketchTool = new SketchTool(this); contextMenuTool = new ContextMenuTool(this); pointInspectTool = new PointInspectTool(this); }