我在执行JFrame项目时遇到麻烦。
基本上，我是Java的新手，我想使用简单的类来改进自己的GUI应用程序。
我有一个实例化我的对象的主要方法，一个JFrame窗口类，一个Panel类和一个Story类，它们描述了如果单击“框架”按钮时将调用的每个函数。
我的问题是，我找不到使用我的Story类的方法。我想将其方法调用到Panel中，但是Story已经接受了Panel参数（以调用诸如TextArea＆Buttons之类的面板组件），因此无法将其实例化到Panel类中。
以下是代码示例：
主类：
public class Main {
public static void main(String[] args) {
GamePanel myPanel = new GamePanel();
GameWindow myWindow = new GameWindow(myPanel);
}
}
窗口类：
public class GameWindow extends JFrame {
private GamePanel p;
public GameWindow(GamePanel p) {
this.p = p;
this.setSize(800,600);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setContentPane(this.p);
this.setLayout(null);
this.setVisible(true);
}
public void setPanel(GamePanel panel) {
this.p = panel;
}
public GamePanel getPanel() {
return this.p;
}
}
面板类：
public class GamePanel extends JPanel {
// PANEL TITLE MENU
private JPanel titleSection = new JPanel();
private JLabel titleName = new JLabel("TEXT ADVENTURE");
private Font titleFont = new Font("Bradley Hand", Font.BOLD, 50);
// PANEL STARTBUTTON MENU
private JPanel buttonSection = new JPanel();
private JButton buttonStart = new JButton("START");
private Font buttonFont = new Font("Bradley Hand", Font.BOLD, 30);
// PANEL MAINTEXT GAME
private JPanel mainTextSection = new JPanel();
private JTextArea mainTextArea = new JTextArea();
private Font mainTextFont = new Font("Avenir", Font.PLAIN, 20);
// PANEL MAINBUTTONS GAME
private JPanel buttonPanel = new JPanel();
private JButton button1 = new JButton();
private JButton button2 = new JButton();
private JButton button3 = new JButton();
private JButton button4 = new JButton();
// PANEL PLAYERINFO GAME
private JPanel playerInfo = new JPanel();
private JLabel playerHp, playerHpNumber, playerWeapon, playerWeaponName;
// HANDLERS OBJECTS
private TitleHandler tHandler = new TitleHandler();
private ButtonsHandler cHandler = new ButtonsHandler();
// DEFAULT CONSTRUCTOR
public GamePanel() {
this.setBackground(Color.darkGray);
// TITLE SETUP
titleSection.setBounds(100,80,600,150);
titleSection.setBackground(Color.darkGray);
this.add(titleSection);
titleName.setForeground(Color.white);
titleName.setFont(titleFont);
titleSection.add(titleName);
// STARTBUTTON SETUP
buttonSection.setBounds(300,400,200,100);
buttonSection.setBackground(Color.darkGray);
this.add(buttonSection);
buttonStart.setForeground(Color.black);
buttonStart.setFont(buttonFont);
buttonStart.addActionListener(tHandler);
buttonSection.add(buttonStart);
}
public void createGameScreen() {
// MENU SCREEN DISABLE
titleSection.setVisible(false);
buttonSection.setVisible(false);
// MAINTEXT SETUP
mainTextSection.setBounds(100,100,600,250);
mainTextSection.setBackground(Color.darkGray);
this.add(mainTextSection);
mainTextArea.setBounds(100,100,600,250);
mainTextArea.setBackground(Color.darkGray);
mainTextArea.setForeground(Color.white);
mainTextArea.setFont(mainTextFont);
mainTextArea.setLineWrap(true);
mainTextSection.add(mainTextArea);
// MAINBUTTONS SETUP
buttonPanel.setBounds(250,350,300,150);
buttonPanel.setBackground(Color.darkGray);
buttonPanel.setLayout(new GridLayout(4,1));
this.add(buttonPanel);
button1.setForeground(Color.black);
button1.setFont(mainTextFont);
button1.addActionListener(cHandler);
button1.setActionCommand("c1");
buttonPanel.add(button1);
button2.setForeground(Color.black);
button2.setFont(mainTextFont);
//button2.addActionListener(cHandler);
//button2.setActionCommand("c2");
buttonPanel.add(button2);
button3.setForeground(Color.black);
button3.setFont(mainTextFont);
//button3.addActionListener(cHandler);
//button3.setActionCommand("c3");
buttonPanel.add(button3);
button4.setForeground(Color.black);
button4.setFont(mainTextFont);
//button4.addActionListener(cHandler);
//button4.setActionCommand("c4");
buttonPanel.add(button4);
// PLAYERINFO SETUP
playerInfo.setBounds(100,25,600,50);
playerInfo.setBackground(Color.darkGray);
playerInfo.setLayout(new GridLayout(1,4));
this.add(playerInfo);
playerHp = new JLabel("HP :");
playerHp.setFont(mainTextFont);
playerHp.setForeground(Color.white);
playerInfo.add(playerHp);
playerHpNumber = new JLabel();
playerHpNumber.setFont(mainTextFont);
playerHpNumber.setForeground(Color.white);
playerInfo.add(playerHpNumber);
playerWeapon = new JLabel("Weapon :");
playerWeapon.setFont(mainTextFont);
playerWeapon.setForeground(Color.white);
playerInfo.add(playerWeapon);
playerWeaponName = new JLabel("None");
playerWeaponName.setFont(mainTextFont);
playerWeaponName.setForeground(Color.white);
playerInfo.add(playerWeaponName);
repaint();
}
public void setMainTextArea(String t) {
this.mainTextArea.setText(t);
}
public void setButton1(String t) {
this.button1.setText(t);
}
public void setButton2(String t) {
this.button2.setText(t);
}
public void setButton3(String t) {
this.button3.setText(t);
}
public void setButton4(String t) {
this.button4.setText(t);
}
public class ButtonsHandler implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
defineEvent(e);
}
public void defineEvent(ActionEvent e) {
if (true) {
// call Story functions for test
} else {
}
}
}
// NESTED CLASS FOR HANDLING MENU STARTBUTTON
public class TitleHandler implements ActionListener {
public void actionPerformed(ActionEvent e) {
createGameScreen();
}
}
}
故事类：
public class Story {
protected String position = "Start";
protected GamePanel p;
public Story() {
}
// FUNCTIONS
public void gameStart() {
this.position = "Start";
p.setMainTextArea("...\nYou're waking up in a forest.\nYour head hurts a lot.\nWhy are you here ?\n\n" +
"You decide to explore through the forest, looking for clues.");
p.setButton1(">");
}
// GETTERS & SETTERS
public String getPosition() {
return position;
}
public GamePanel getP() {
return p;
}
public void setGamePanel(GamePanel p) {
this.p = p;
}
}
（对不起，似乎我的代码在括号中有问题）
我猜我的代码结构不好，但是我找不到找到Story和Panel类的方法。
任何帮助将不胜感激！ ：）
答案 0 :(得分：0)
您需要看一下MVC（模型视图控制器）体系结构，在您的情况下，我相信您可以使用其更简单的姊妹模型MV（模型视图）。
痛苦的原因是将模型（故事）和视图（面板）混合到同一类（Story.java）中。您可以使用状态机模式（相对）轻松地实现模型。
您可能还需要实现观察者模式，其中观察者是面板，可观察者是故事。您可以让GamePanel实现PropertyChangeListener，并且模型（Story）每次状态更改时都会触发 propertyChange 事件。有关更多信息，您可以找到at this article。