A frame with a sample text label and a combo box for selecting font faces : ComboBox « Swing JFC « Java






  1. Java
  2. Swing JFC
  3. ComboBox

A frame with a sample text label and a combo box for selecting font faces

 
/*
   This program is a part of the companion code for Core Java 8th ed.
   (http://horstmann.com/corejava)

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

/**
 * @version 1.33 2007-06-12
 * @author Cay Horstmann
 */
public class ComboBoxTest
{
   public static void main(String[] args)
   {
      EventQueue.invokeLater(new Runnable()
         {
            public void run()
            {

               ComboBoxFrame frame = new ComboBoxFrame();
               frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
               frame.setVisible(true);
            }
         });
   }
}

/**
 * A frame with a sample text label and a combo box for selecting font faces.
 */
class ComboBoxFrame extends JFrame
{
   public ComboBoxFrame()
   {
      setTitle("ComboBoxTest");
      setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);

      // add the sample text label

      label = new JLabel("The quick brown fox jumps over the lazy dog.");
      label.setFont(new Font("Serif", Font.PLAIN, DEFAULT_SIZE));
      add(label, BorderLayout.CENTER);

      // make a combo box and add face names

      faceCombo = new JComboBox();
      faceCombo.setEditable(true);
      faceCombo.addItem("Serif");
      faceCombo.addItem("SansSerif");
      faceCombo.addItem("Monospaced");
      faceCombo.addItem("Dialog");
      faceCombo.addItem("DialogInput");

      // the combo box listener changes the label font to the selected face name

      faceCombo.addActionListener(new ActionListener()
         {
            public void actionPerformed(ActionEvent event)
            {
               label.setFont(new Font((String) faceCombo.getSelectedItem(), Font.PLAIN,
                     DEFAULT_SIZE));
            }
         });

      // add combo box to a panel at the frame's southern border

      JPanel comboPanel = new JPanel();
      comboPanel.add(faceCombo);
      add(comboPanel, BorderLayout.SOUTH);
   }

   public static final int DEFAULT_WIDTH = 300;
   public static final int DEFAULT_HEIGHT = 200;

   private JComboBox faceCombo;
   private JLabel label;
   private static final int DEFAULT_SIZE = 12;
}








Related examples in the same category

1.Combobox combines a button or editable field and a drop-down list.
2.Using drop-down listsUsing drop-down lists
3.A fancy example of JComboBox with a custom renderer and editorA fancy example of JComboBox with a custom renderer and editor
4.Editable ComboBoxEditable ComboBox
5.Create a simple combobox
6.Font Chooser ComboBoxFont Chooser ComboBox
7.Color combobox rendererColor combobox renderer
8.Select the combobox by choose the nearby labelSelect the combobox by choose the nearby label
9.ComoboBox loads and saves items automatically from a fileComoboBox loads and saves items automatically from a file
10.Sharing a Model between a JList and JComboBoxSharing a Model between a JList and JComboBox
11.ComboBox Demo 2ComboBox Demo 2
12.Custom ComboBox with ImageCustom ComboBox with Image
13.ComboBox DemoComboBox Demo
14.List: Shared Data SampleList: Shared Data Sample
15.Selecting Combo SampleSelecting Combo Sample
16.MultiKey ComboMultiKey Combo
17.PopupCombo SamplePopupCombo Sample
18.Dual Sample: JList and ComboBoxDual Sample: JList and ComboBox
19.ComboBox SampleComboBox Sample
20.Color ComboBox: ComboBoxEditor DemoColor ComboBox: ComboBoxEditor Demo
21.Determining When the Menu of a JComboBox Component Is Displayed
22.Listening for Action Events from a JComboBox Component
23.Listening for Changes to the Selected Item in a JComboBox Component
24.Setting the Number of Visible Items in the Menu of a JComboBox Component
25.Displaying the Menu in a JComboBox Component Using a Keystroke If the Selected Item Is Not Unique
26.Displaying the Menu in a JComboBox Component Using a Keystroke
27.Determining If the Menu of a JComboBox Component Is Visible
28.Selecting an Item in a JComboBox Component with Multiple Keystrokes
29.Adding and Removing an Item in a JComboBox Component
30.Add an item after the first item
31.Add an item to the end of the list
32.Remove first item
33.Remove the last item
34.Remove all items
35.Getting the Items in a JComboBox Component
36.Getting and Setting the Selected Item in a JComboBox Component
37.If the combobox is editable, the new value can be any value
38.Creating a read-only and editable JComboBox Component
39.ArrayListComboBoxModel DemoArrayListComboBoxModel Demo