Tooltips

[Marc Beck]

I would like to add a tooltip to a JLabel. I read the tooltip tutorial: web page.
I wrote the following code and it is just being ignored. No error message or anything.

 
ToolTipManager.sharedInstance().registerComponent(IconLabel);
IconLabel.setToolTipText(Name);   

I would like for it to display the name of the object on that icon in a tooltip when hovering over it.

[Maneesh Godbole]

Originally posted by Marc Beck:

 
ToolTipManager.sharedInstance().registerComponent(IconLabel);
IconLabel.setToolTipText(Name);   

I would like for it to display the name of the object on that icon in a tooltip when hovering over it.[/QB]

You really dont need to take this approach. The JComponent has a getToolTipText() method which returns a String which is displayed as the tooltip. This method is called internally whenever the tooltip is to be displayed. All JComponents are registered with the ToolTipManager by default.

So, what you need to do is make your IconLabel extend the JLabel or some other JComponent. In the constructor, you can accept the object which is to be represented by this IconLabel. Then you just override the getToolTipText() which will return the appropriate String based on the Object.

[Marc Beck]

My IconLabel is already an instance of JLabel. Do I have to add something in the MouseListener in order to display the tooltip when the mouse is moved over the icon?

[Maneesh Godbole]

Nope.
Just use the get/setToolTipText().

[preethi Ayyappan]

Hi,

I want to display my button in a label.here is my code.pls help me what i have to do further?

Code:

public class AstMonitor extends JApplet implements ActionListener, Runnable {
Thread astThread;
JButton pause= new JButton(spause);

public void init() {
GridLayout gl;
getContentPane().setLayout(new GridLayout(3,10));
pause.setActionCommand("pause");
pause.addActionListener(this);
this.getContentPane().add(pause);
pause.setMnemonic('p');
pause.setToolTipText("press pause");
pause.setBackground(Color.yellow);

astThread = new Thread(this);
astThread.start();
}

[Marc Beck]

Thanks for trying to help. I have been very busy with other things and just got back to this problem. I am using the setTooltipText() method, but it is being completely ignored. Am I missing something? Where do I need to put the getToolTipText?

[Maneesh Godbole]

Originally posted by Marc Beck:
I am using the setTooltipText() method, but it is being completely ignored. Am I missing something? Where do I need to put the getToolTipText?

Usually its something like label.setToolTipText("This is a tool tip");
Why dont you post your code where you are setting the tool tip so we can figure out whats missing?

[Marc Beck]

The code is part of a game that is about 4000 lines and I've been working on it for over a year.

 class planet extends spaceObj {
 

   private String Empire; 
 
   private int Population;//manpower
 
   private int mpGain;//monthly increase in manpower
 
   private int Industry;//total number of industrial units on planet
 
   private int freeIC;//industrial units not busy at moment
 
   private int Citycomplete;//time in days to build city
 
   private int ICcomplete;//time in days to build industry
 
   private JLabel NameLabel= new JLabel(Name);//Name of planet
   public ArrayList unitList = new ArrayList();//ground units on planet
 
   public planet(int x, int y,String n,String emp,int pop, int IC, ArrayList prodList,int mpgain) {
 
    xcoordinate=x;
 
    ycoordinate=y;
 
    IconWidth=30;
 
    IconHeight=30;
 
    Name=n;
 
    Empire=emp; 
 
    Population=pop;
 
    Industry=IC;
 
    freeIC=IC;//at the beginning all ic is free(ignore ships under construction for now)
 
    shiplist=prodList;
 
    mpGain=mpgain;
    public JLabel IconLabel= new JLabel();//picture of planet 
    IconLabel.setToolTipText(Name);
 
   }      
public void drawIcon(JPanel ImagePanel){
 
     if(Name.equals("open space")==false){//if this has a planet and is not in open space
 
      java.net.URL imgURL9 = getClass().getResource("Graphics/Planets/"+Name+".gif");
 
      IconLabel.setIcon(new ImageIcon(imgURL9));
 
      NameLabel.setText(Name);
 
      LabelColor();    
 
      IconLabel.setBounds(xcoordinate+1,ycoordinate+16,IconWidth,IconHeight);
 
      NameLabel.setBounds(xcoordinate+1,ycoordinate+1,55,15);
 
      ImagePanel.add(NameLabel);
 
      ImagePanel.add(IconLabel); 
 
     }
 
    }
 
    }
 

 

The picture of the planet is displayed fine. I would like for the tooltip to show the name of the planet when the player moves the cursor over the picture, so I can get rid of the NameLabel.

[Marc Beck]

Nevermind, I figured it out on my own when I looked on the code again shortly after my last post. But thanks for trying.