/*
   * The contents of this file are subject to the BT "ZEUS" Open Source 
   * Licence (L77741), Version 1.0 (the "Licence"); you may not use this file 
   * except in compliance with the Licence. You may obtain a copy of the Licence
   * from $ZEUS_INSTALL/licence.html or alternatively from
   * http://www.labs.bt.com/projects/agents/zeus/licence.htm
   * 
   * Except as stated in Clause 7 of the Licence, software distributed under the
   * Licence is distributed WITHOUT WARRANTY OF ANY KIND, either express or 
  * implied. See the Licence for the specific language governing rights and 
  * limitations under the Licence.
  * 
  * The Original Code is within the package zeus.*.
  * The Initial Developer of the Original Code is British Telecommunications
  * public limited company, whose registered office is at 81 Newgate Street, 
  * London, EC1A 7AJ, England. Portions created by British Telecommunications 
  * public limited company are Copyright 1996-9. All Rights Reserved.
  * 
  * THIS NOTICE MUST BE INCLUDED ON ANY COPY OF THIS FILE
  */
  
  
  
  package zeus.gui;
  
  import java.util.*;
  import java.awt.*;
  import java.awt.event.*;
  import javax.swing.*;
  
  import zeus.util.*;
  import zeus.gui.fields.*;
  
  
  public class NumberDialog extends JDialog
                            implements ActionListener {
     protected JLabel label;
     protected WholeNumberField textfield;
  
     protected JButton okButton;
     protected JButton cancelButton;
     protected String OK = "Ok";
     protected String CANCEL = "Cancel";
     protected Long answer = null;
  
     public NumberDialog(Frame parent, String title, String label_string) {
        this(parent,title);
        this.setLabel(label_string);
     }
     public NumberDialog(Frame parent, String title, String label_string,
                         int min, int max, int number ) {
        this(parent,title,(long)min,(long)max);
        this.setLabel(label_string);
        this.setValue(number);
     }
     public NumberDialog(Frame parent, String title,
                         String label_string, int number ) {
        this(parent,title);
        this.setLabel(label_string);
        this.setValue(number);
     }
     public NumberDialog(Frame parent, String title, String label_string,
                         long min, long max, long number ) {
        this(parent,title,min,max);
        this.setLabel(label_string);
        this.setValue(number);
     }
     public NumberDialog(Frame parent, String title,
                         String label_string, long number ) {
        this(parent,title);
        this.setLabel(label_string);
        this.setValue(number);
     }
     public NumberDialog(Frame parent, String title) {
        this(parent,title,Long.MIN_VALUE,Long.MAX_VALUE);
     }
     public NumberDialog(Frame parent, String title, long min, long max) {
        super(parent,title,true);
        getContentPane().setLayout(new BorderLayout());
  
        JPanel p1 = new JPanel();
        p1.setLayout(new GridLayout(1,2,10,10));
        okButton = new JButton(OK);
        cancelButton = new JButton(CANCEL);
        p1.add(okButton);
        p1.add(cancelButton);
  
        label = new JLabel("--Undefined--");
        textfield = new WholeNumberField(min,max);
        textfield.setPreferredSize(new Dimension(100,20));
        textfield.setMinimumSize(new Dimension(100,20));
  
        JPanel p2 = new JPanel();
        GridBagLayout gb = new GridBagLayout();
        GridBagConstraints gbc = new GridBagConstraints();
        p2.setLayout(gb);
  
        gbc.fill = GridBagConstraints.NONE;
        gbc.weightx = gbc.weighty = 0;
       gbc.insets = new Insets(10,10,0,0);
       gbc.anchor = GridBagConstraints.WEST;
       gbc.gridwidth = 1;
       gb.setConstraints(label,gbc);
       p2.add(label);
 
       gbc.insets = new Insets(10,10,0,10);
       gbc.fill = GridBagConstraints.HORIZONTAL;
       gbc.gridwidth = GridBagConstraints.REMAINDER;
       gbc.weightx = gbc.weighty = 1;
       gb.setConstraints(textfield,gbc);
       p2.add(textfield);
 
       JSeparator s1 = new JSeparator();
       gbc.insets = new Insets(10,0,10,0);
       gbc.fill = GridBagConstraints.HORIZONTAL;
       gbc.gridwidth = GridBagConstraints.REMAINDER;
       gbc.weightx = gbc.weighty = 0;
       gb.setConstraints(s1,gbc);
       p2.add(s1);
 
       getContentPane().add("Center",p2);
       getContentPane().add("South",p1);
 
       // Event handling
       textfield.addActionListener(this);
       okButton.addActionListener(this);
       cancelButton.addActionListener(this);
 
       this.addWindowListener(
           new WindowAdapter() {
              public void windowClosing(WindowEvent evt) {
 		setVisible(false);
 	     }
           }
       );
       this.pack();
    }
 
    public Long getValue() {
       answer = null;
       this.setVisible(true);
       return answer;
    }
 
    public void actionPerformed(ActionEvent evt) {
       Object source = evt.getSource();
 
       if ( source == textfield || source == okButton ) {
          answer = textfield.getValue();
          if ( answer == null ) {
             int result = JOptionPane.showConfirmDialog(this,
                "Improperly specified integer value\nContinue?",
 	       "Warning", JOptionPane.YES_NO_OPTION);
             switch(result) {
 	       case JOptionPane.YES_OPTION:
                     break;
 
                case JOptionPane.NO_OPTION:
                     return;
             }
          }
          this.setVisible(false);
       }
       else if ( source == cancelButton ) {
          this.setVisible(false);
       }
    }
 
    public String getLabel() { return label.getText(); }
 
    public void setLabel(String text) {
       Assert.notNull(text);
       label.setText(text);
    }
 
    public void setValue(int number) {
       textfield.setValue(number);
    }
    public void setValue(long number) {
       textfield.setValue(number);
    }
 
    public static void main(String arg[]) {
       JFrame f = new JFrame("Test");
       f.setSize(200,200);
       f.show();
       NumberDialog m = new NumberDialog(f,"Enter number");
       m.setValue(123);
       System.out.println(m.getValue());
       System.exit(0);
    }
 
 
 }