CODEWITHSUNDEEP
javaswing
user7205283
user7205283

Reputation:

JDialog shows empty

I was trying to replace the use of JOptionPane by a new custom dialog here is what I did:

    package pk;

    import java.util.Enumeration;

    import javax.swing.ImageIcon;
    import javax.swing.JButton;
    import javax.swing.JComponent;
    import javax.swing.JDialog;
    import javax.swing.JFrame;
    import javax.swing.JLabel;

    import java.awt.BorderLayout;
    import java.awt.Font;

    import javax.swing.JTextArea;

    import java.awt.SystemColor;

    import javax.swing.JPanel;

    import java.awt.Color;

    import javax.swing.border.LineBorder;

    public class SIMessage extends JDialog implements ActionListener{
        private static final long serialVersionUID = 1L;
        public JButton oui=new JButton("Oui"),btnClose=new JButton(new ImageIcon("images\\logo\\delete.gif")),
        non=new JButton("Non"),annuler=new JButton("Annuler"),ok=new JButton("OK"); 
        public JLabel lblImgErr=new JLabel(new ImageIcon("images\\logo\\msgErreur.png")),
                lblImgConf=new JLabel(new ImageIcon("images\\logo\\msgQuestion.png")),
                lblImgWarning=new JLabel(new ImageIcon("images\\logo\\msgWarning.png")),
                lblImgInfo=new JLabel(new ImageIcon("images\\logo\\msgInformation.png")),
                lblImgQuestion=new JLabel(new ImageIcon("images\\logo\\msgQuestion.png")),
                lblImgIconApp=new JLabel(new ImageIcon("images\\logo\\clntIco.ico"));
        public JLabel title=new JLabel(),message=new JLabel();

        public enum TypeMessage{
            ERROR_MESSAGE,
            CONFIRMATION_MESSAGE,
            WARNING_MESSAGE,
            INFORMATION_MESSAGE,
            VALIDATION_MESSAGE
        }
        public SIMessage(JFrame parent,String title,TypeMessage type,String message) {
                 super(parent,true);
            setUndecorated(true); 
            getContentPane().setLayout(new GridLayout(1, 1));

                JPanel mainDgPanel = new JPanel();
                mainDgPanel.setBorder(new LineBorder(new Color(255, 255, 255), 3, true));
                mainDgPanel.setBounds(0, 0, 444, 156);
                getContentPane().add(mainDgPanel);
                mainDgPanel.setLayout(null);
                mainDgPanel.setBackground(Color.decode(EcranPrincipal.blueThemeCP));

                JTextArea txtrTextarea = new JTextArea(message);
                txtrTextarea.setRows(2);
                txtrTextarea.setBounds(123, 62, 340, 80);
                txtrTextarea.setFont(new Font("Iskoola Pota", Font.PLAIN, 18));
                txtrTextarea.setEditable(false);
                txtrTextarea.setFocusable(false);
                txtrTextarea.setOpaque(false);
                txtrTextarea.setBorder(null);
                txtrTextarea.setWrapStyleWord(true);
                txtrTextarea.setLineWrap(true);
                txtrTextarea.setForeground(Color.decode(EcranPrincipal.blueThemeBT));
                mainDgPanel.add(txtrTextarea);

                JPanel panelButtons = new JPanel();
                panelButtons.setBounds(47, 115, 344, 30);
                mainDgPanel.add(panelButtons);

                switch(type)
                {
                case ERROR_MESSAGE:
                    {
                        JLabel lblNewLabel =lblImgErr;
                        lblNewLabel.setBounds(10, 69, 79, 14);
                        mainDgPanel.add(lblNewLabel);

                        JButton btnOk = ok;
                        panelButtons.add(btnOk);
                    break;
                    }
                case CONFIRMATION_MESSAGE:
                    {
                         JLabel lblNewLabel =lblImgConf;
                            lblNewLabel.setBounds(10, 69, 79, 14);
                            mainDgPanel.add(lblNewLabel);

                            JButton btnOui = oui;
                            panelButtons.add(btnOui);
                    break;
                    }
                case WARNING_MESSAGE:
                    {
                         JLabel lblNewLabel =lblImgWarning;
                            lblNewLabel.setBounds(10, 69, 79, 14);
                            mainDgPanel.add(lblNewLabel);

                            JButton btnOk = ok;
                            panelButtons.add(btnOk);
                    break;
                    }
                case INFORMATION_MESSAGE:
                    {
                         JLabel lblNewLabel =lblImgInfo;
                            lblNewLabel.setBounds(10, 69, 79, 14);
                            mainDgPanel.add(lblNewLabel);

                            JButton btnOk = ok;
                            panelButtons.add(btnOk);
                    break;
                    }
                case VALIDATION_MESSAGE:
                    {
                         JLabel lblNewLabel =lblImgConf;
                            lblNewLabel.setBounds(10, 69, 79, 14);
                            mainDgPanel.add(lblNewLabel);


                            JButton btnOui = oui;
                            panelButtons.add(btnOui);

                            JButton btnNon = non;
                            panelButtons.add(btnNon);

                            JButton btnAnnuler = annuler;
                            panelButtons.add(btnAnnuler);

                    break;
                    }
                    default:
                }
                ok.addActionListener(this);
                oui.addActionListener(this);

                JPanel panel = new JPanel();
                panel.setBounds(0, 0, 444, 27);
                mainDgPanel.add(panel);
                panel.setBackground(Color.WHITE);
                panel.setLayout(null);

                JButton btnCloseDf = btnClose;
                btnCloseDf.setBounds(411, 0, 39, 23);
                panel.add(btnCloseDf);

                JLabel lblIconApp =lblImgIconApp;
                lblIconApp.setBounds(10, 4, 77, 14);
                panel.add(lblIconApp);

                JLabel lblTitle = new JLabel(title);
                lblTitle.setBounds(190, 4, 46, 14);
                panel.add(lblTitle);
                this.pack();
                this.setVisible(true);
        }
public void actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub
        Object source=e.getSource();
        if(source==oui||source==ok)
        {
            this.dispose();
        }
    }

Then I call:

    SIMessage sm=new SIMessage(this, "Attention", SIMessage.TypeMessage.WARNING_MESSAGE,"You need to change ...");
callMethode2();

The problem is that it executes the call to Methode2 before showing any dialog while it is supposed to force the user to respond before continuing. I see an empty window side by side with the window generated by callMethod2!, so what is wrong?

Upvotes: 0

Views: 1210

Answers (1)

Emad
Emad

Reputation: 799

You should set the modality for Dialog.

A modal window is a graphical control element subordinate to an application's main window. It creates a mode that disables the main window but keeps it visible with the modal window as a child window in front of it. Users must interact with the modal window before they can return to the parent application.

So, Set the modal flag of the dialog when initializing it.

setModal(True)

edit: I don't know what you exactly changed in your code, but the code below works fine for me:

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Emad
 */
import java.awt.BorderLayout;
import java.util.Enumeration;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;

import java.awt.BorderLayout;
import java.awt.Font;

import javax.swing.JTextArea;

import java.awt.SystemColor;

import javax.swing.JPanel;

import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import javafx.event.ActionEvent;

import javax.swing.border.LineBorder;

public class SIMessage extends JDialog implements ActionListener {

    private static final long serialVersionUID = 1L;
    public JButton oui = new JButton("Oui"), btnClose = new JButton(new ImageIcon("images\\logo\\delete.gif")),
            non = new JButton("Non"), annuler = new JButton("Annuler"), ok = new JButton("OK");
    public JLabel lblImgErr = new JLabel(new ImageIcon("images\\logo\\msgErreur.png")),
            lblImgConf = new JLabel(new ImageIcon("images\\logo\\msgQuestion.png")),
            lblImgWarning = new JLabel(new ImageIcon("images\\logo\\msgWarning.png")),
            lblImgInfo = new JLabel(new ImageIcon("images\\logo\\msgInformation.png")),
            lblImgQuestion = new JLabel(new ImageIcon("images\\logo\\msgQuestion.png")),
            lblImgIconApp = new JLabel(new ImageIcon("images\\logo\\clntIco.ico"));
    public JLabel title = new JLabel(), message = new JLabel();

    @Override
    public void actionPerformed(java.awt.event.ActionEvent e) {

        // TODO Auto-generated method stub
        Object source = e.getSource();
        if (source == oui || source == ok) {
            this.dispose();
        }
    }

    public enum TypeMessage {
        ERROR_MESSAGE,
        CONFIRMATION_MESSAGE,
        WARNING_MESSAGE,
        INFORMATION_MESSAGE,
        VALIDATION_MESSAGE
    }

    public SIMessage(JFrame parent, String title, TypeMessage type, String message) {
        super(parent, true);
        setUndecorated(true);
        getContentPane().setLayout(new GridLayout(1, 1));

        JPanel mainDgPanel = new JPanel();
        mainDgPanel.setBorder(new LineBorder(new Color(255, 255, 255), 3, true));
        mainDgPanel.setBounds(0, 0, 444, 156);
        getContentPane().add(mainDgPanel);
//                mainDgPanel.setBackground(Color.decode(EcranPrincipal.blueThemeCP));

        JTextArea txtrTextarea = new JTextArea(message);
        txtrTextarea.setRows(2);
        txtrTextarea.setBounds(123, 62, 340, 80);
        txtrTextarea.setFont(new Font("Iskoola Pota", Font.PLAIN, 18));
        txtrTextarea.setEditable(false);
        txtrTextarea.setFocusable(false);
        txtrTextarea.setOpaque(false);
        txtrTextarea.setBorder(null);
        txtrTextarea.setWrapStyleWord(true);
        txtrTextarea.setLineWrap(true);
//                txtrTextarea.setForeground(Color.decode(EcranPrincipal.blueThemeBT));
        mainDgPanel.add(txtrTextarea);

        JPanel panelButtons = new JPanel();
        panelButtons.setBounds(47, 115, 344, 30);
        mainDgPanel.add(panelButtons);

        switch (type) {
            case ERROR_MESSAGE: {
                JLabel lblNewLabel = lblImgErr;
                lblNewLabel.setBounds(10, 69, 79, 14);
                mainDgPanel.add(lblNewLabel);

                JButton btnOk = ok;
                panelButtons.add(btnOk);
                break;
            }
            case CONFIRMATION_MESSAGE: {
                JLabel lblNewLabel = lblImgConf;
                lblNewLabel.setBounds(10, 69, 79, 14);
                mainDgPanel.add(lblNewLabel);

                JButton btnOui = oui;
                panelButtons.add(btnOui);
                break;
            }
            case WARNING_MESSAGE: {
                JLabel lblNewLabel = lblImgWarning;
                lblNewLabel.setBounds(10, 69, 79, 14);
                mainDgPanel.add(lblNewLabel);

                JButton btnOk = ok;
                panelButtons.add(btnOk);
                break;
            }
            case INFORMATION_MESSAGE: {
                JLabel lblNewLabel = lblImgInfo;
                lblNewLabel.setBounds(10, 69, 79, 14);
                mainDgPanel.add(lblNewLabel);

                JButton btnOk = ok;
                panelButtons.add(btnOk);
                break;
            }
            case VALIDATION_MESSAGE: {
                JLabel lblNewLabel = lblImgConf;
                lblNewLabel.setBounds(10, 69, 79, 14);
                mainDgPanel.add(lblNewLabel);

                JButton btnOui = oui;
                panelButtons.add(btnOui);

                JButton btnNon = non;
                panelButtons.add(btnNon);

                JButton btnAnnuler = annuler;
                panelButtons.add(btnAnnuler);

                break;
            }
            default:
        }
        ok.addActionListener(this);
        oui.addActionListener(this);

        JPanel panel = new JPanel();
        panel.setBounds(0, 0, 444, 27);
        mainDgPanel.add(panel);
        panel.setBackground(Color.WHITE);
        panel.setLayout(null);

        JButton btnCloseDf = btnClose;
        btnCloseDf.setBounds(411, 0, 39, 23);
        panel.add(btnCloseDf);

        JLabel lblIconApp = lblImgIconApp;
        lblIconApp.setBounds(10, 4, 77, 14);
        panel.add(lblIconApp);

        JLabel lblTitle = new JLabel(title);
        lblTitle.setBounds(190, 4, 46, 14);
        panel.add(lblTitle);
        this.pack();
        this.setVisible(true);
    }

    public static void main(String[] args)
    {
        SIMessage sm=new SIMessage(null, "Attention", SIMessage.TypeMessage.WARNING_MESSAGE,"You need to change ...");
        System.out.println("hello");
    }
}

Upvotes: 2

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