src/main/java/jp/sourceforge/stigmata/ui/swing/PopupButton.java

   1 package jp.sourceforge.stigmata.ui.swing;
   2
   3 /*
   4  * $Id$
   5  */
   6
   7 import java.awt.GridBagConstraints;
   8 import java.awt.GridBagLayout;
   9 import java.awt.Insets;
  10 import java.awt.Point;
  11 import java.awt.event.ActionEvent;
  12 import java.awt.event.ActionListener;
  13
  14 import javax.swing.JButton;
  15 import javax.swing.JMenuItem;
  16 import javax.swing.JPanel;
  17 import javax.swing.JPopupMenu;
  18 import javax.swing.plaf.metal.MetalComboBoxIcon;
  19
  20 /**
  21  * Popup button.
  22  *
  23  * @author tamada
  24  * @version $Revision$
  25  */
  26 public class PopupButton extends JPanel{
  27     private static final long serialVersionUID = -4428839967597028837L;
  28
  29     private JButton button;
  30     private JPopupMenu popup;
  31     private JButton arrowButton;
  32
  33     public PopupButton(JButton initButton){
  34         button = initButton;
  35         arrowButton = new JButton(new MetalComboBoxIcon());
  36         popup = new JPopupMenu();
  37
  38         arrowButton.addActionListener(new ActionListener(){
  39             @Override
  40             public void actionPerformed(ActionEvent e){
  41                 Point p = button.getLocation();
  42                 popup.show(PopupButton.this, p.x, button.getHeight());
  43             }
  44         });
  45         Insets insets = arrowButton.getMargin();
  46         arrowButton.setMargin(new Insets(insets.top, 1, insets.bottom, 1));
  47
  48         setLayout(new GridBagLayout());
  49         GridBagConstraints gbc = new GridBagConstraints();
  50         gbc.weightx = 0d; gbc.weighty = 0d;
  51         gbc.gridx = 0;    gbc.gridy = 0;
  52         gbc.fill = GridBagConstraints.BOTH;
  53
  54         add(button, gbc);
  55
  56         gbc.weightx = 0d;
  57         gbc.gridx = 1;
  58         add(arrowButton, gbc);
  59
  60         updateUI();
  61     }
  62
  63     @Override
  64     public void setEnabled(boolean enabled){
  65         super.setEnabled(enabled);
  66         button.setEnabled(enabled);
  67         arrowButton.setEnabled(enabled);
  68     }
  69
  70     public JButton getButton(){
  71         return button;
  72     }
  73
  74     public JMenuItem addMenuItem(JMenuItem menuItem){
  75         return popup.add(menuItem);
  76     }
  77 }