Is there a way to associate a menu bar with the sketch frame?

shawnlau

I'm trying to add a menu bar to my sketch frame. I found the code below ( http://www.java-tips.org/java-se-tips-100019/15-javax-swing/1755-how-to-create-menu-bar.html ) and it would work to have some sort of menu bar, but I would really like to attach it to the frame. I found some old code of how to attach a menu bar., but it no longer works. Even after updating the calls like JMenu etc. , it breaks on the frame.setJMenuBar(myMenu) say the Jmenubar iss not applicable to that method.

Is it possible to modify this code to have the menu bar associated with frame?

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JRadioButtonMenuItem;

public class MenuExp extends JFrame {

    public MenuExp() {

        setTitle("Menu Example");
        setSize(400, 50);

        // Creates a menubar for a JFrame
        JMenuBar menuBar = new JMenuBar();

        // Add the menubar to the frame
        setJMenuBar(menuBar);

        // Define and add two drop down menu to the menubar
        JMenu fileMenu = new JMenu("File");
        JMenu editMenu = new JMenu("Edit");
        menuBar.add(fileMenu);
        menuBar.add(editMenu);

        // Create and add simple menu item to one of the drop down menu
        JMenuItem newAction = new JMenuItem("New");
        JMenuItem openAction = new JMenuItem("Open");
        JMenuItem exitAction = new JMenuItem("Exit");
        JMenuItem cutAction = new JMenuItem("Cut");
        JMenuItem copyAction = new JMenuItem("Copy");
        JMenuItem pasteAction = new JMenuItem("Paste");

        // Create and add CheckButton as a menu item to one of the drop down
        // menu
        JCheckBoxMenuItem checkAction = new JCheckBoxMenuItem("Check Action");
        // Create and add Radio Buttons as simple menu items to one of the drop
        // down menu
        JRadioButtonMenuItem radioAction1 = new JRadioButtonMenuItem(
                "Radio Button1");
        JRadioButtonMenuItem radioAction2 = new JRadioButtonMenuItem(
                "Radio Button2");
        // Create a ButtonGroup and add both radio Button to it. Only one radio
        // button in a ButtonGroup can be selected at a time.
        ButtonGroup bg = new ButtonGroup();
        bg.add(radioAction1);
        bg.add(radioAction2);
        fileMenu.add(newAction);
        fileMenu.add(openAction);
        fileMenu.add(checkAction);
        fileMenu.addSeparator();
        fileMenu.add(exitAction);
        editMenu.add(cutAction);
        editMenu.add(copyAction);
        editMenu.add(pasteAction);
        editMenu.addSeparator();
        editMenu.add(radioAction1);
        editMenu.add(radioAction2);
        // Add a listener to the New menu item. actionPerformed() method will
        // invoked, if user triggred this menu item
        newAction.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                System.out.println("You have clicked on the new action");
            }
        });
    }
 /*   public static void main(String[] args) {
        MenuExp me = new MenuExp();
        me.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        me.setVisible(true);
    } */
}
      MenuExp me = new MenuExp();

void setup(){
     size(600,600);
      me.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
      me.setVisible(true);

}

void draw(){
     background(100);
}

shawnlau

Here's the old code I found. It breaks on frame.setMenuBar(myMenu);
https://processing.org/discourse/beta/num_1214314785.html

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JRadioButtonMenuItem;
import processing.core.PApplet;

JMenuBar myMenu;
JMenu topButton;
JMenuItem item1,item2,item3,item4,item5;

myMenuListener menuListen;

color bg = color(255);

void setup(){
 size(400,200);
 //this doesn't demonstrate best coding practice, just a simple method
 //create the MenuBar Object
 menuListen = new myMenuListener();
 myMenu = new JMenuBar();

 //create the top level button
 topButton = new JMenu("Colours");

 //create all the Menu Items and add the menuListener to check their state.
 item1 = new JMenuItem("Red");
 item1.addActionListener(menuListen);

 item2 = new JMenuItem("Green");
 item2.addActionListener(menuListen);
 item3 = new JMenuItem("Blue");
 item3.addActionListener(menuListen);
 item4 = new JMenuItem("Yellow");
 item4.addActionListener(menuListen);
 item5 = new JMenuItem("Black");
 item5.addActionListener(menuListen);

 //add the items to the top level Button
 topButton.add(item1);
 topButton.add(item2);
 topButton.add(item3);
 topButton.add(item4);
 topButton.add(item5);

 //add the button to the menu
 myMenu.add(topButton);

 //add the menu to the frame!
 frame.setMenuBar(myMenu);   // and it breaks here

}

void draw(){
 // get the current menu state
 background(bg);
}

//this menuListener object is largely ripped off from http://java.sun.com/docs/books/tutorial/uiswing/examples/components/MenuDemoProject/src/components/MenuDemo.java

class myMenuListener implements ActionListener, ItemListener{

 myMenuListener(){

 }

 public void actionPerformed(ActionEvent e) {
   MenuItem source = (MenuItem)(e.getSource());
   String s = "Action event detected."
     + "    Event source: " + source.getLabel()
     + " (an instance of " + getClassName(source) + ")";
   println(s);

   //this part changes the background colour
   if(source.getLabel().equals("Red")){
     bg = color(220,50,0);
   }
   if(source.getLabel().equals("Blue")){
     bg = color(30,100,255);
   }
   if(source.getLabel().equals("Green")){
     bg = color(40,200,0);
   }
   if(source.getLabel().equals("Yellow")){
     bg = color(220,220,0);
   }
   if(source.getLabel().equals("Black")){
     bg = color(0);
   }
 }

 public void itemStateChanged(ItemEvent e) {
       MenuItem source = (MenuItem)(e.getSource());
       String s = "Item event detected."
                  + "    Event source: " + source.getLabel()
                  + " (an instance of " + getClassName(source) + ")"
                  + "    New state: "
                  + ((e.getStateChange() == ItemEvent.SELECTED) ?
                    "selected":"unselected");
       println(s);
   }


}

//gets the class name of an object
protected String getClassName(Object o) {
 String classString = o.getClass().getName();
 int dotIndex = classString.lastIndexOf(".");
 return classString.substring(dotIndex+1);
}

shawnlau

I got the menu bar to appear. frame is of type Frame not JFrame . Now I have to try to work out the listener issue. When I uncomment it, its giving me an error I dont't even understand. "myMenuListener must implement the inherited abstract method ItemListener.itemStateChanged(ItemEvent) "

I'll need to reed a few books on java to understand that error massage. Is there something I'm not importing that could save me all that reading?

I've edited it some more - got rid of the error and this works. I think I can use this.

    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import javax.swing.event.MenuListener;
    import java.awt.MenuBar;
    import java.awt.Menu;
    import java.awt.MenuItem;
    import java.awt.event.ItemListener;
    import java.awt.event.ActionListener;

    MenuBar myMenu;
    Menu topButton;
    MenuItem item1,item2,item3,item4,item5;

     myMenuListener menuListen;

    color bg = color(255);

    void setup(){
     size(400,200);
     //this doesn't demonstrate best coding practice, just a simple method
     //create the MenuBar Object
     menuListen = new myMenuListener();
     myMenu = new MenuBar();

     //create the top level button
     topButton = new Menu("Colours");

     //create all the Menu Items and add the menuListener to check their state.
     item1 = new MenuItem("Red");
     item1.addActionListener(menuListen);

     item2 = new MenuItem("Green");
     item2.addActionListener(menuListen);
     item3 = new MenuItem("Blue");
     item3.addActionListener(menuListen);
     item4 = new MenuItem("Yellow");
     item4.addActionListener(menuListen);
     item5 = new MenuItem("Black");
     item5.addActionListener(menuListen);

    // add the items to the top level Button
     topButton.add(item1);
     topButton.add(item2);
     topButton.add(item3);
     topButton.add(item4);
     topButton.add(item5);

    // add the button to the menu
     myMenu.add(topButton);

     //add the menu to the frame!
     frame.setMenuBar(myMenu);   // and it breaks here

    }

    void draw(){
     // get the current menu state
     background(bg);
    }

    //this menuListener object is largely ripped off from http://java.sun.com/docs/books/tutorial/uiswing/examples/components/MenuDemoProject/src/components/MenuDemo.java

     class myMenuListener implements ActionListener{

     myMenuListener(){

     }

     public void actionPerformed(ActionEvent e) {
       MenuItem source = (MenuItem)(e.getSource());
       String s = "Action event detected."
         + "    Event source: " + source.getLabel()
         + " (an instance of " + getClassName(source) + ")";
       println(s);

       //this part changes the background colour
       if(source.getLabel().equals("Red")){
         bg = color(220,50,0);
       }
       if(source.getLabel().equals("Blue")){
         bg = color(30,100,255);
       }
       if(source.getLabel().equals("Green")){
         bg = color(40,200,0);
       }
       if(source.getLabel().equals("Yellow")){
         bg = color(220,220,0);
       }
       if(source.getLabel().equals("Black")){
         bg = color(0);
       }
     }

    /* public void itemStateChanged(ItemEvent e){
           MenuItem source =(MenuItem)(e.getSource());
           String s = "Item event detected."
                      + "    Event source: " + source.getLabel()
                      + " (an instance of " + getClassName(source) + ")"
                      + "    New state: "
                      + ((e.getStateChange() == ItemEvent.SELECTED) ?
                        "selected":"unselected");
           println(s);*
       } */


    }

    //gets the class name of an object
    protected String getClassName(Object o) {
     String classString = o.getClass().getName();
     int dotIndex = classString.lastIndexOf(".");
     return classString.substring(dotIndex+1);
    } 

shawnlau

I have it working now. This puts a menu bar on your sketch:

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.event.MenuListener;
import java.awt.MenuBar;
import java.awt.Menu;
import java.awt.MenuItem;
import java.awt.event.ItemListener;


MenuBar myMenu;
Menu fileMenu,viewMenu,freqMenu;
MenuItem fileLoad,fileSave,viewOpen,viewClose,viewFlip,freqSplit,freqJoin,freqSplitMethod;

myMenuListener menuListen;

color bg = color(255);

void setup(){
 size(600,600);
 //this doesn't demonstrate best coding practice, just a simple method
 //create the MenuBar Object
 menuListen = new myMenuListener();
 myMenu = new MenuBar();

 //create the top level button
 fileMenu = new Menu("File");
 viewMenu = new Menu("View");
 freqMenu = new Menu ("Frequency");

 //create all the Menu Items and add the menuListener to check their state.
 fileLoad = new MenuItem("Load Layer");
 fileLoad.addActionListener(menuListen);
 fileSave = new MenuItem("Save Layer");
 fileSave.addActionListener(menuListen);
 viewOpen = new MenuItem("View Open");
 viewOpen.addActionListener(menuListen);
 viewClose = new MenuItem("View Close");
 viewClose.addActionListener(menuListen);
 viewFlip = new MenuItem("Flip View");
 viewFlip.addActionListener(menuListen);
 freqSplit = new MenuItem("Split Frequencies");
 freqSplit.addActionListener(menuListen);
 freqJoin = new MenuItem("Join Frequencies");
 freqJoin.addActionListener(menuListen);
 freqSplitMethod = new  MenuItem("Split Method");

 fileMenu.add(fileLoad);
 fileMenu.add(fileSave);
 viewMenu.add(viewOpen);
 viewMenu.add(viewClose);
 viewMenu.add(viewFlip);
 freqMenu.add(freqSplit);
 freqMenu.add(freqJoin);
 freqMenu.add(freqSplitMethod);



// add the button to the menu
 myMenu.add(fileMenu);
 myMenu.add(viewMenu);
 myMenu.add(freqMenu);

 //add the menu to the frame!
 frame.setMenuBar(myMenu);   // and it breaks here

}

void draw(){
 // get the current menu state
 background(bg);
 point(0,0);
}

//this menuListener object is largely ripped off from http://java.sun.com/docs/books/tutorial/uiswing/examples/components/MenuDemoProject/src/components/MenuDemo.java

 class myMenuListener implements ActionListener{

 myMenuListener(){

 }

 public void actionPerformed(ActionEvent e) {
   MenuItem source = (MenuItem)(e.getSource());
   String s = "Action event detected."
     + "    Event source: " + source.getLabel()
     + " (an instance of " + getClassName(source) + ")";
   println(s);

   //this part changes the background colour
   if(source.getLabel().equals("Load Layer")){
     println("Load a layer");
   }
   else if(source.getLabel().equals("Save Layer")){
     println("Save a layer");
   }
   else if(source.getLabel().equals("View Open")){
     println(" Open view window");
   }
   else if(source.getLabel().equals("View Close")){
     println("Close view window");
   }
   else if(source.getLabel().equals("Flip View")){
     println("Flip view window");
   }
   else println(" etc. etc..");

 }



}

//gets the class name of an object
protected String getClassName(Object o) {
 String classString = o.getClass().getName();
 int dotIndex = classString.lastIndexOf(".");
 return classString.substring(dotIndex+1);
} 

shawnlau

And this fixes it completely. I guess itemStateChanged is in a file I wasn't importing and the wild card imports them all:

import java.awt.*;
import java.awt.event.*;

MenuBar myMenu;
Menu fileMenu,viewMenu,freqMenu,freqSMenu;
MenuItem fileLoad,fileSave,viewOpen,viewClose,viewFlip,freqSplit, freqJoin, splitBlur,splitMed;

myMenuListener menuListen;

color bg = color(255);

void setup(){
     size(600,600);
     menu_setup();
}

void draw(){
 // get the current menu state
 background(bg);
 point(0,0);
}

//this menuListener object is largely ripped off from http://java.sun.com/docs/books/tutorial/uiswing/examples/components/MenuDemoProject/src/components/MenuDemo.java

 class myMenuListener implements ActionListener, ItemListener{

 myMenuListener(){

 }

 public void actionPerformed(ActionEvent e) {
   MenuItem source = (MenuItem)(e.getSource());
   String s = "Action event detected."
     + "    Event source: " + source.getLabel()
     + " (an instance of " + getClassName(source) + ")";
   println(s);

   //this part changes the background colour
   if(source.getLabel().equals("Load Layer")){
     println("Load a layer");
   }
   else if(source.getLabel().equals("Save Layer")){
     println("Save a layer");
   }
   else if(source.getLabel().equals("View Open")){
     println(" Open view window");
   }
   else if(source.getLabel().equals("View Close")){
     println("Close view window");
   }
   else if(source.getLabel().equals("Flip View")){
     println("Flip view window");
   }
   else println(" etc. etc..");

 }

   public void itemStateChanged(ItemEvent e) {

  MenuItem source = (MenuItem)(e.getSource());
   String s = "Action event detected."
     + "    Event source: " + source.getLabel()
     + " (an instance of " + getClassName(source) + ")";
   println(s);

   //this part changes the background colour
   if(source.getLabel().equals("Load Layer")){
     println("Load a layer");
   }
   else if(source.getLabel().equals("Save Layer")){
     println("Save a layer");
   }
   else if(source.getLabel().equals("View Open")){
     println(" Open view window");
   }
   else if(source.getLabel().equals("View Close")){
     println("Close view window");
   }
   else if(source.getLabel().equals("Flip View")){
     println("Flip view window");
   }
   else println(" etc. etc..");


      }

}



protected String getClassName(Object o) {
      String classString = o.getClass().getName();
      int dotIndex = classString.lastIndexOf(".");
      return classString.substring(dotIndex+1);
} 

void menu_setup(){

 //this doesn't demonstrate best coding practice, just a simple method
 //create the MenuBar Object
 menuListen = new myMenuListener();
 myMenu = new MenuBar();

 //create the top level button
 fileMenu = new Menu("File");
 viewMenu = new Menu("View");
 freqMenu = new Menu ("Frequency");
 freqSMenu  = new Menu("Frequency Split");

 //create all the Menu Items and add the menuListener to check their state.
 fileLoad = new MenuItem("Load Layer");
 fileLoad.addActionListener(menuListen);
 fileSave = new MenuItem("Save Layer");
 fileSave.addActionListener(menuListen);
 viewOpen = new MenuItem("View Open");
 viewOpen.addActionListener(menuListen);
 viewClose = new MenuItem("View Close");
 viewClose.addActionListener(menuListen);
 viewFlip = new MenuItem("Flip View");
 viewFlip.addActionListener(menuListen);
 freqJoin = new MenuItem("Join Frequencies");
 freqJoin.addActionListener(menuListen);
 splitBlur = new MenuItem("Blur");
 splitBlur.addActionListener(menuListen);
 splitMed = new MenuItem("Median");
 splitMed.addActionListener(menuListen);

 fileMenu.add(fileLoad);
 fileMenu.add(fileSave);
 viewMenu.add(viewOpen);
 viewMenu.add(viewClose);
 viewMenu.add(viewFlip);
 freqMenu.add(freqSMenu);
 freqMenu.add(freqJoin);
 freqSMenu.add(splitBlur);
 freqSMenu.add(splitMed);



// add the button to the menu
 myMenu.add(fileMenu);
 myMenu.add(viewMenu);
 myMenu.add(freqMenu);

 //add the menu to the frame!
 frame.setMenuBar(myMenu);  
}

shawnlau

Next up - add scroll bars to the frame :)