第一周

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.IOException;

public class Main {

    static boolean a=true;
    static JFrame frame;
    static JPanel panel;
    static JPanel panel1;
    static JPanel panel2;
    static String road="C:\\Users\\绿波亭\\Desktop\\小学期工作报表\\try_root\\";
    static String last_road;
    static Button refresh=new Button("刷新");
    public boolean error(int a){
        if(a==-1){return false;}
        else if(a==-2){return false;}
        else if(a==-3){return false;}
        else {return true;}
    }



    public static void getRefresh() {
        refresh.setVisible(true);
        refresh.setBounds(150,15,30,20);
        panel2.add(refresh);
    }
    static  public JScrollPane Scroll_Test(){
        JScrollPane jScrollPane = new JScrollPane(panel1);
        jScrollPane.setPreferredSize(new Dimension(200, 10));
        jScrollPane.setBounds(190,0,13,270);
        jScrollPane.setVisible(true);
        jScrollPane.setMinimumSize(new Dimension(200,10));
        jScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        jScrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        return jScrollPane;
    }
/*    static class ScrollBarListener implements AdjustmentListener {
        @Override
        public void adjustmentValueChanged(AdjustmentEvent e) {
            // TODO Auto-generated method stub
            System.out.println(e.getValue());

        }
    }*/
    public static Button[] display_file(){
        Button[] buttons;
        buttons = new Button[Manager.child_file(road).length];
        for(int i=0;i<Manager.child_file(road).length;i++){
            buttons[i]=new Button(Manager.child_file(road)[i].getName());
            String a = Manager.child_file(road)[i].getName();
            buttons[i].setBounds(5,5+20*i,100,25);
            buttons[i].addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    last_road=road;
                    road=road+a+"\\";
                    System.out.println(road);
                    frame.dispose();
                    Frame frame = f_start();
                    frame = p_start(frame);
                    frame.setVisible(true);
                }
            });
        }
        return buttons;
    }
    public static Frame f_start(){
        frame = new JFrame(); //Frame默认的布局管理器为BorderLayout
        frame.setLocationRelativeTo(null);
        frame.setBounds(100, 100, 400, 300);
        frame.setLayout(null); //设置布局管理器为FlowLayout
        frame.setResizable(false);//设置窗口可否调整
        frame.setTitle("文件管理器");//设置窗口标题

        frame.addWindowListener(new WindowAdapter(){//关闭窗口
            public void windowClosing(WindowEvent e){
                System.exit(0);
            }
        });
        return frame;
    }
    public static void panel2_start(){
        TextField textField=new TextField();
        textField.setBounds(45,15,100,20);
        textField.setVisible(true);
        panel2.add(textField);

        Button create=new Button("创建");
        create.setBounds(45,40,100,20);
        create.setVisible(true);
        panel2.add(create);
        create.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                System.out.println("创建"+textField.getText());
                Manager.create(road,textField.getText());
            }
        });

        TextField road_input=new TextField("绝对路径输入(默认.txt):");
        TextField value_input=new TextField("内容");
        road_input.setVisible(true);
        road_input.setBounds(45,75,100,20);
        value_input.setVisible(true);
        value_input.setBounds(45,95,100,20);
        panel2.add(road_input);
        panel2.add(value_input);

        Button create_txt=new Button("新建");
        create_txt.setVisible(true);
        create_txt.setBounds(45,125,100,20);
        create_txt.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    Manager.create_txt(road_input.getText(),value_input.getText());
                } catch (IOException ioException) {
                    ioException.printStackTrace();
                }
            }
        });
        panel2.add(create_txt);

        Button delete=new Button("删除(绝对路径)");
        delete.setVisible(true);
        delete.setBounds(45,150,100,20);
        panel2.add(delete);
        delete.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                if(Manager.DeleteFolder(road_input.getText())==1){
                    System.out.println("删除成功");
                }
            }
        });
        Button last=new Button("后退");
        if(road.equals("C:\\Users\\绿波亭\\Desktop\\小学期工作报表\\try_root\\")){
            last.setVisible(false);
        }
        else{
            last.setVisible(true);
        }
        last.setBounds(45,200,100,20);
        panel2.add(last);
        last.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                road=last_road;
                System.out.println(road);
                frame.dispose();
                Frame frame = f_start();
                frame = p_start(frame);
                frame.setVisible(true);
            }
        });
    }
    public static Frame p_start(Frame frame){
        JScrollPane scrollPane=Scroll_Test();
        panel=new JPanel();

        panel.setLayout(null);
        panel.setBounds(0, 0, 400, 300);
        frame.add(panel);

        panel1=new JPanel();
        panel1.setBounds(5,5,184,295);
        panel1.setBackground(Color.gray);
        panel1.setVisible(true);
        panel1.setLayout(null);

        panel2=new JPanel();
        panel2.setBounds(203,5,195,295);
        panel2.setBackground(Color.BLUE);
        panel2.setVisible(true);
        panel2.setLayout(null);
        panel2_start();

        panel.add(panel1);
        panel.add(panel2);
        panel.add(scrollPane);


        if(Manager.child_file(road).length>0){
            Button[] buttons=display_file();
            for(int i=0;i<buttons.length;i++){
                panel1.add(buttons[i]);
            }
        }

        return frame;
    }
    static public void main(String[] args){
        frame = (JFrame) f_start();
        frame = (JFrame) p_start(frame);
        getRefresh();
        refresh.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                frame.dispose();
                frame = (JFrame) p_start(frame);
                frame.setVisible(true);
            }
        });
        frame.setVisible(true);
    }
}