friendspanel.java

图书馆座位管理系统

package librarysearchingsystem;

import javax.swing.JPanel;
import fileUtility.Student;
import fileUtility.StudentsManagement;
import javax.swing.JButton;
import java.awt.Color;
import javax.swing.JFrame;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Dimension;
import fileUtility.*;


public class FriendsPanel extends JPanel implements ActionListener {
    int friendsSerial[] = null, friendsInLibSerial[] = null;
    JButton friendsButton[];
    static int comWidth = 200, comHeight = 40, ffpHeight = 135;
    static int xHap = 5, hHap = 5;
    Frame f;
    static Color buttonColor = new Color(145, 138, 216);
    static FriendsFuncPanel ffp = new FriendsFuncPanel();

    private int width = comWidth + 2 * xHap;
    private int height = 650;
    public static boolean isInLib = true;

    static {
        ffp.setBounds(xHap, hHap, comWidth, ffpHeight);
    }

    public FriendsPanel() {
        try {
            jbInit();
            draw();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public FriendsPanel(int ID, Frame f) {
        this.f = f;
        friendsSerial = StudentsManagement.getFriendsSerial(ID);
        friendsInLibSerial = getFriendsInLib(StudentsManagement.students);
        try {
            jbInit();
            draw();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public FriendsPanel(int ID, Frame f, boolean justInLib) {
        this.f = f;
        isInLib = justInLib;
        friendsSerial = StudentsManagement.getFriendsSerial(ID);
        friendsInLibSerial = getFriendsInLib(StudentsManagement.students);

        try {
            jbInit();
            draw();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    void printFriendSerial() {
        if (friendsSerial == null) {
            System.out.println("好友数00000000");
            return;
        }
        System.out.println("好友数：" + friendsSerial.length);
        for (int i = 0; i < friendsSerial.length; i++) {
            System.out.println(friendsSerial[i]);
        }
    }

    private void jbInit() throws Exception {
        ffp.IDTextField.setText("");
        ffp.fP = this;
        this.setLayout(null);
        this.setSize(width, height);
        setBackground(new Color(187, 180, 216));
        this.setAutoscrolls(true);

    }

    private void draw() {
        int tempFriendsSerial[];
        Student students[] = StudentsManagement.students;
        this.add(ffp);
        //获取在图书馆的好友序列号

        if (isInLib) {
            tempFriendsSerial = friendsInLibSerial;
        } else {
            tempFriendsSerial = friendsSerial;
        }
//        printFriendSerial();
        //
        /** @todo 测试用 */
        if (tempFriendsSerial == null) {
            return;
        }

        /** @todo  */
        friendsButton = new JButton[tempFriendsSerial.length];
        for (int i = 0; i < friendsButton.length; i++) {
            Student s = students[tempFriendsSerial[i]];
            if (s.readingRoom == null) {
                friendsButton[i] = new JButton(s.name + "  不在图书馆");
                friendsButton[i].setEnabled(false);
            } else {
                friendsButton[i] = new JButton(s.name + "  " +
                                               s.readingRoom.name);
                friendsButton[i].addActionListener(this);
            }

            friendsButton[i].setBounds(xHap,
                                       ffpHeight + 2 * hHap +
                                       i * (hHap + comHeight),
                                       comWidth, comHeight);
            friendsButton[i].setBackground(buttonColor);
            this.add(friendsButton[i]);
        }
        height = ffpHeight + friendsButton.length * (hHap + comHeight) + hHap;
    }

    private int[] getFriendsInLib(Student[] students) {
        if (friendsSerial == null) {
            return null;
        }
        int friendsInLib = 0;
        int fSerial[] = new int[friendsSerial.length];
        for (int i = 0; i < friendsSerial.length; i++) {
            Student s = students[friendsSerial[i]];
            if (s.readingRoom != null) {
                fSerial[friendsInLib] = friendsSerial[i];
                friendsInLib++;
            }

        }
        int inLibSerial[] = new int[friendsInLib];
        for (int i = 0; i < inLibSerial.length; i++) {
            inLibSerial[i] = fSerial[i];
        }
//        System.out.println("inLibSerial.length=" + inLibSerial.length);
        return inLibSerial;
    }


//    public static void main(String[] args) {
//        new StudentsManagement();
//        friendsPanel f = new friendsPanel(2);
//        f.printFriendSerial();
//    }
    public static void main(String[] args) throws InterruptedException {
        new StudentsManagement();
        FriendsPanel f = new FriendsPanel(2, null);
        f.printFriendSerial();
        f.setSize(300, 900);
        JFrame ff = new JFrame();
        ff.setSize(800, 600);
        ff.getContentPane().setLayout(null);

        ff.getContentPane().add(f);
        ff.setDefaultCloseOperation(ff.EXIT_ON_CLOSE);
        ff.show();
    }

    public void actionPerformed(ActionEvent e) {
        for (int i = 0; i < friendsButton.length; i++) {
            if (e.getSource() == friendsButton[i]) {
                Student stu;
                if (isInLib) {
                    stu = StudentsManagement.students[friendsInLibSerial[i]];
                } else {
                    stu = StudentsManagement.students[friendsSerial[i]];
                }

//                System.out.println(stu.serial+" friend");

                if (!isInLib) {
//                    Student stu = StudentsManagement.students[friendsSerial[i]];
                    f.changeToreadingRoom(stu.readingRoom, stu.serial,
                                          ReadingRoomPane.friend);
                } else {

//                    System.out.println(stu.readingRoom);
                    f.changeToreadingRoom(stu.readingRoom, stu.serial,
                                          ReadingRoomPane.friend);
                }
            }
        }
    }

    public boolean isFriend(int serial) {
        if (friendsSerial == null) {
            return false;
        }
        for (int i = 0; i < friendsSerial.length; i++) {
            if (friendsSerial[i] == serial) {
                return true;
            }
        }
        return false;
    }

    public Dimension getPreferredSize() {

        return new Dimension(width, height);
    }
}