Tools/Java/Source/FrameworkWizard/src/org/tianocore/frameworkwizard/common/ui/IComboBox.java

   1 /** @file
   2
   3  The file is used to override JComboBox to provides customized interfaces
   4
   5  Copyright (c) 2006, Intel Corporation
   6  All rights reserved. This program and the accompanying materials
   7  are licensed and made available under the terms and conditions of the BSD License
   8  which accompanies this distribution.  The full text of the license may be found at
   9  http://opensource.org/licenses/bsd-license.php
  10
  11  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14  **/
  15 package org.tianocore.frameworkwizard.common.ui;
  16
  17 import java.awt.event.FocusEvent;
  18 import java.awt.event.FocusListener;
  19 import java.awt.event.KeyEvent;
  20 import java.awt.event.KeyListener;
  21 import java.awt.event.MouseEvent;
  22 import java.awt.event.MouseListener;
  23
  24 import javax.swing.JComboBox;
  25 import javax.swing.JFrame;
  26 import javax.swing.JPanel;
  27
  28 /**
  29  The class is used to override JComboBox to provides customized interfaces
  30  It extends JComboBox implements KeyListener, MouseListener and FocusListener
  31
  32
  33
  34  **/
  35 public class IComboBox extends JComboBox implements KeyListener, MouseListener, FocusListener {
  36
  37     ///
  38     /// Define class Serial Version UID
  39     ///
  40     private static final long serialVersionUID = -1940262568168458911L;
  41
  42     public void focusGained(FocusEvent arg0) {
  43         // TODO Auto-generated method stub
  44
  45     }
  46
  47     /* (non-Javadoc)
  48      * @see java.awt.event.FocusListener#focusLost(java.awt.event.FocusEvent)
  49      *
  50      * Override focusLost to exit edit mode
  51      *
  52      */
  53     public void focusLost(FocusEvent arg0) {
  54         this.closeEdit();
  55     }
  56
  57     /**
  58      Main class, used for test
  59
  60      @param args
  61
  62      **/
  63     public static void main(String[] args) {
  64         JFrame jf = new JFrame();
  65         jf.setSize(500, 200);
  66         JPanel jp = new JPanel();
  67         jp.setLayout(null);
  68         IComboBox icb = new IComboBox();
  69         jp.add(icb, null);
  70         jf.setContentPane(jp);
  71         jf.setVisible(true);
  72     }
  73
  74     /**
  75      This is the default constructor
  76
  77      **/
  78     public IComboBox() {
  79         super();
  80         init();
  81     }
  82
  83     /**
  84      This method initializes this
  85
  86      **/
  87     private void init() {
  88         this.setSize(320, 20);
  89         this.setEditable(false);
  90         this.editor.addActionListener(this);
  91         this.addMouseListener(this);
  92         this.addKeyListener(this);
  93         this.getEditor().getEditorComponent().addKeyListener(this);
  94         this.getEditor().getEditorComponent().addFocusListener(this);
  95         this.setToolTipText("<html>Double Click to add an entry, then finish by press ENTER.<br>"
  96                             + "Selecting DELETE will remove selected entry.</html>");
  97     }
  98
  99     public void keyPressed(KeyEvent arg0) {
 100         // TODO Auto-generated method stub
 101     }
 102
 103     /* (non-Javadoc)
 104      * @see java.awt.event.KeyListener#keyReleased(java.awt.event.KeyEvent)
 105      *
 106      * Override keyReleased to listen key action
 107      *
 108      */
 109     public void keyReleased(KeyEvent arg0) {
 110         //
 111         //Add new item to list when press ENTER
 112         //
 113         if (arg0.getSource() == this.getEditor().getEditorComponent()) {
 114             if (arg0.getKeyCode() == KeyEvent.VK_ENTER) {
 115                 String strCurrentText = this.getEditor().getItem().toString().trim();
 116                 if (strCurrentText.length() == 0) {
 117                     if (this.getItemCount() > 0) {
 118                         this.setSelectedIndex(0);
 119                     }
 120                 } else {
 121                     this.addItem(strCurrentText);
 122                     this.setSelectedItem(strCurrentText);
 123                 }
 124                 this.setEditable(false);
 125             }
 126
 127             if (arg0.getKeyCode() == KeyEvent.VK_ESCAPE) {
 128                 closeEdit();
 129             }
 130         }
 131
 132         if (arg0.getSource() == this) {
 133             //
 134             //Remove item from the list when press DEL
 135             //
 136             if (arg0.getKeyCode() == KeyEvent.VK_DELETE) {
 137                 int intSelected = this.getSelectedIndex();
 138                 if (intSelected > -1) {
 139                     this.removeItemAt(this.getSelectedIndex());
 140                     if (this.getItemCount() > 0) {
 141                         this.setSelectedIndex(0);
 142                     } else {
 143                         this.removeAllItems();
 144                     }
 145                 }
 146             }
 147         }
 148     }
 149
 150     public void keyTyped(KeyEvent arg0) {
 151         // TODO Auto-generated method stub
 152     }
 153
 154     /* (non-Javadoc)
 155      * @see java.awt.event.MouseListener#mouseClicked(java.awt.event.MouseEvent)
 156      *
 157      * Override mouseClicked to enter edit mode when double click mouse
 158      *
 159      */
 160     public void mouseClicked(MouseEvent arg0) {
 161         if (arg0.getClickCount() == 2) {
 162             this.setEditable(true);
 163             this.getEditor().setItem("");
 164         }
 165     }
 166
 167     public void mouseEntered(MouseEvent arg0) {
 168         // TODO Auto-generated method stub
 169
 170     }
 171
 172     public void mouseExited(MouseEvent arg0) {
 173         // TODO Auto-generated method stub
 174
 175     }
 176
 177     public void mousePressed(MouseEvent arg0) {
 178         // TODO Auto-generated method stub
 179
 180     }
 181
 182     public void mouseReleased(MouseEvent arg0) {
 183         // TODO Auto-generated method stub
 184
 185     }
 186
 187     /**
 188      Exit edit mode
 189
 190      **/
 191     private void closeEdit() {
 192         this.setEditable(false);
 193         this.getEditor().setItem("");
 194     }
 195 }