CODEWITHSUNDEEP
javaswingjpaneljscrollpane
IonOne
IonOne

Reputation: 385

Why aren't my RadioButtons & JLabels showing?

i created a component which extends a JDialog. It creates a JPanel (with a big size) inside a JScrollPane. Then i add RadioButtons and JLabels to the JPanel

two problems : 1 - the RadioButtons and JLabels don't show. 2 - the scrollBars of the JScrollPane don't show

here is my code :

public class xuggleJOptionPane1 extends JDialog{  

    Container pane;  
    JPanel paneMain;  
    JLabel ms1;  
    xuggleJOptionPane1 myFrame;  
    JPanel panel;  
    JScrollPane paneScroll;  
    JPanel paneScrollpanel;  

    public xuggleJOptionPane1(JFrame parent, String str, int nf)  
    {  
        super(parent, str);  

        myFrame = this;  
        myFrame.setPreferredSize(new Dimension(400, 160));  
        myFrame.setSize(new Dimension(400, 160));  

        panel = new JPanel();  
        panel.setSize(400, 160);  

        ms1 = new JLabel();  

        paneScroll = new JScrollPane();  

        paneScroll.setPreferredSize(new Dimension(380,100));  

        paneScrollpanel = new JPanel();  

        paneScrollpanel.setPreferredSize(new Dimension(1600, 1600));  
        //if i add this line the whole paneScrollpanel disappears  
        //paneScrollpanel.setSize(1600, 1600);  

        String pl ="";  
        if (nf != 1) pl = "es";  
        String s1 = "We found " + nf + " flux"+pl+". Which one do you wanna choose ?";  

        ms1.setText(s1);  

        ArrayList<JRadioButton> Buttons = new ArrayList<JRadioButton>();  
        ArrayList<JLabel> Labels = new ArrayList<JLabel>();  

        ButtonGroup group = new ButtonGroup();  
        for (int i = 0; i < nf; i++)  
        {  
            Buttons.add(new JRadioButton());  
            Labels.add(new JLabel("test"));  
            paneScrollpanel.add(Buttons.get(i));  
            paneScrollpanel.add(Labels.get(i));  
            group.add(Buttons.get(i));  
        }  
        Buttons.get(0).setSelected(true);  

        paneScroll.add(paneScrollpanel);  
        panel.add(ms1);  
        panel.add(paneScroll);  
        myFrame.add(panel);  

        myFrame.setVisible(true);  
        myFrame.setResizable(false);  
    }  


}

Upvotes: 1

Views: 818

Answers (1)

MadProgrammer
MadProgrammer

Reputation: 347194

Change

paneScroll.add(paneScrollpanel);

to

paneScroll.setViewportView(paneScrollpanel);

While I'm here...

This is kinda pointless (IMHO)

myFrame = this;  
myFrame.setPreferredSize(new Dimension(400, 160));  
myFrame.setSize(new Dimension(400, 160));

You could use

this.setSize(new Dimension(400, 160));

or 

setSize(new Dimension(400, 160));

This is kind of pointless

panel.setSize(400, 160);

As the layout manager will make it's own decisions about what size to make the panel

You'd probably also like to look into pack

Of, on a personal note, I really, really dislike frames that aren't resizable :P

Upvotes: 4

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