public interface Drawable {
     void draw();
}
public interface CombineDrawable extends Drawable{
    /**
     * 容器组件可以注册一个组件
     */
     CombineDrawable register(Drawable drawable);
}
/**
*
*容器组件实现
*/
public class ContainerControl implements CombineDrawable {
    @Override
    public ContainerControl register(Drawable drawable) {
        this.registerdContorls.add(drawable);
        return this;
    }
    @Override
    public void draw() {
        //先绘制容器自己
        this.self.draw();
       // 子控件遍历绘制
        registerdContorls.forEach(Drawable::draw);
    }
    private Drawable self;
    private List<Drawable> registerdContorls = new ArrayList<>();
    private String name;
    private ContainerControl(Drawable self, String name) {
        this.self = self;
        this.name = name;
    }
    public static ContainerControl createContainner(Drawable self, String name) {
        return new ContainerControl(self, name);
    }
}
public class DrawDemo {
    public static void main(String[] args) {
      // 先绘制整个窗口, 父容器
        ContainerControl.createContainner(() -> System.out.println("Draw WinForm"), "WinFrom")
                .register(() -> System.out.println("Draw Logo"))
                .register(() -> System.out.println("Draw Button(登录)"))
                .register(() -> System.out.println("Draw Button(注册)"))
                .register(ContainerControl.createContainner(() -> System.out.println("Draw Frame1"), "Frame") //Frame1又是个容器
                        .register(() -> System.out.println("Draw label 用户名"))
                        .register(() -> System.out.println("Draw TextBox"))
                        .register(() -> System.out.println("Draw PassWordBox"))
                        .register(() -> System.out.println("Draw CheckBox"))
                        .register(() -> System.out.println("Draw TextBox 记住用户名"))
                        .register(() -> System.out.println("Draw LinkLabel 忘记密码")))
                .draw(); //开始绘制
    }
}