[java] JFrame questions
Author
How would I implement this,
I want to create a window that will have two buttons: Start and Exit.
If I press the exit button it will close the window.
If I press Start it will create a new different window and close the older one.
I want to implement it with the Model View Controler design.
How would I do this?
I know how to create buttons, with extending a JPanel.
However, if I have a class A which extends the JPanel and have these buttons.
Then I do "getContentPane().add(ui, BorderLayout.CENTER)" withe the JFrame class.
How would I make the buttons in A do what I wanted them to do?
Thanks in advance.
For model-view-controller design I usually have the view contain a reference to the controller object and pass the controller object a model object.
For a simple frame such as one with two buttons Start and Exit you would probably not want to use a model-view-controller since you really have no model.
But here is the code anyways. Just to get you started! Hope that helps!
ViewPrototype
Controller
Model
ViewNewGame
For a simple frame such as one with two buttons Start and Exit you would probably not want to use a model-view-controller since you really have no model.
But here is the code anyways. Just to get you started! Hope that helps!
ViewPrototype
import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.*;public class ViewPrototype extends JFrame { private JButton btnStart = new JButton("Start"); private JButton btnExit = new JButton("Exit"); private Controller ctrl = new Controller( new Model() ); public ViewPrototype() { super("View Prototype"); JPanel main = new JPanel( new BorderLayout() ); main.setBorder( new EmptyBorder(5,5,5,5) ); main.add( btnStart, "West" ); main.add( btnExit, "East" ); getContentPane().add(main); addWindowListener( new WindowAdapter() { public void windowClosing( WindowEvent e ) { setVisible(false); dispose(); } } ); //just to keep things encapsulated addListeners(); pack(); setVisible(true); } private void addListeners() { btnStart.addActionListener( new ActionListener() { public void actionPerformed( ActionEvent e ) { setVisible(false); dispose(); ctrl.startNewGame(); } } ); btnExit.addActionListener( new ActionListener() { public void actionPerformed( ActionEvent e ) { ctrl.exit(); } } ); } public static void main( String args[] ) { new ViewPrototype(); }}Controller
public class Controller { private Model mData = null; public Controller( Model m ) { mData = m; } public void startNewGame() { new ViewNewGame(this); } public void exit() { //cleanup the data if need be or save the data. System.exit(0); }}Model
/* * This class is to be used for storing information for the game * such as configuration settings, player data, highscores, etc... */public class Model { public Model() { //empty model }}ViewNewGame
import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.*;public class ViewNewGame extends JFrame { private Controller ctrl = null; public ViewNewGame( Controller c ) { super("The Game"); ctrl = c; addWindowListener( new WindowAdapter() { public void windowClosing( WindowEvent e ) { setVisible(false); dispose(); ctrl.exit(); } } ); setSize(640,480); setVisible(true); }}This topic is closed to new replies.
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