训练营第三周

//打印器接口
public interface Painter {
    void paint(Component component);
}
//组件接口
public interface Component {
    String getName();
    default void print(Painter painter) {
        painter.paint(this);
    }
}
//窗口组件
public class WinForm implements Component {
    private List<Component> childs = new ArrayList<>();
    private String name;
    public WinForm(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
    public void addChild(Component component) {
        childs.add(component);
    }
    @Override
    public void print(Painter painter) {
        painter.paint(this);
        childs.forEach(c -> c.print(painter));
    }
}
//frame 组件
public class Frame implements Component {
    private String name;
    private List<Component> childs = new ArrayList<>();
    public Frame(String name) {
        this.name = name;
    }
    public void addChild(Component component) {
        childs.add(component);
    }
    @Override
    public void print(Painter painter) {
        painter.paint(this);
        childs.forEach(painter::paint);
    }
    @Override
    public String getName() {
        return this.name;
    }
}
public class Button implements Component {
    private String name;
    public Button(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
}
public class CheckBox implements Component {
    private String name;
    public CheckBox(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
}
public class Lable implements Component {
    private String name;
    public Lable(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
}
public class LinkLable implements Component {
    private String name;
    public LinkLable(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
}
//打印器
public class PainterImpl implements Painter {
    @Override
    public void paint(Component component) {
        System.err
                .println(String.format("print %s (%s)", component.getClass().getSimpleName(), component.getName()));
    }
}
public class PasswordBox implements Component {
    private String name;
    public PasswordBox(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
}
public class Picture implements Component {
    private String name;
    public Picture(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
}
public class TextBox implements Component {
    private String name;
    public TextBox(String name) {
        this.name = name;
    }
    @Override
    public String getName() {
        return this.name;
    }
}
public class Week3Work2 {
    public static void main(String[] args) {
        Painter painter = new PainterImpl();
        WinForm winForm = new WinForm("WINDOW窗口");
        winForm.addChild(new Picture("LOGO 图片"));
        winForm.addChild(new Button("登录"));
        winForm.addChild(new Button("注册LOGO 图片"));
        Frame frame1 = new Frame("FRAME1");
        winForm.addChild(frame1);
        frame1.addChild(new Lable("用户名"));
        frame1.addChild(new TextBox("文本框"));
        frame1.addChild(new Lable("密码"));
        frame1.addChild(new PasswordBox("密码框"));
        frame1.addChild(new CheckBox("复选框"));
        frame1.addChild(new TextBox("记住用户名"));
        frame1.addChild(new TextBox("忘记密码"));
        winForm.print(painter);
    }
}