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/**
* @version 1.00 1999-07-17
* @author Cay Horstmann
*/
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JPanel;
import javax.swing.JToolBar;
public class SwingToolBarTest {
public static void main(String[] args) {
JFrame frame = new ToolBarFrame();
frame.show();
}
}
/*
* the color action sets the background of its target to a given color
*/
class ColorAction extends AbstractAction {
public ColorAction(String name, Icon icon, Color c, Component t) {
putValue(Action.NAME, name);
putValue(Action.SMALL_ICON, icon);
putValue(Action.SHORT_DESCRIPTION, name + " background");
putValue("Color", c);
target = t;
}
public void actionPerformed(ActionEvent evt) {
Color c = (Color) getValue("Color");
target.setBackground(c);
target.repaint();
}
private Component target;
}
/*
* the tool bar button is a button with an icon and no text suitable for
* addition into a tool bar. The tool tip is set to the short description of the
* action, or to the name if the short description is not available
*/
class ToolBarButton extends JButton {
public ToolBarButton(Action a) {
super((Icon) a.getValue(Action.SMALL_ICON));
String toolTip = (String) a.getValue(Action.SHORT_DESCRIPTION);
if (toolTip == null)
toolTip = (String) a.getValue(Action.NAME);
if (toolTip != null)
setToolTipText(toolTip);
addActionListener(a);
}
}
class ToolBarFrame extends JFrame {
public ToolBarFrame() {
setTitle("ToolBarTest");
setSize(300, 200);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
// add a panel for color change
Container contentPane = getContentPane();
JPanel panel = new JPanel();
contentPane.add(panel, "Center");
// set up actions
Action blueAction = new ColorAction("Blue",
new ImageIcon("java2s.gif"), Color.blue, panel);
Action yellowAction = new ColorAction("Yellow", new ImageIcon(
"java2s.gif"), Color.yellow, panel);
Action redAction = new ColorAction("Red",
new ImageIcon("red-ball.gif"), Color.red, panel);
Action exitAction = new AbstractAction("Exit",
new ImageIcon("java2s.gif")) {
public void actionPerformed(ActionEvent event) {
System.exit(0);
}
};
// populate tool bar
JToolBar bar = new JToolBar();
bar.add(new ToolBarButton(blueAction));
bar.add(new ToolBarButton(yellowAction));
bar.add(new ToolBarButton(redAction));
bar.addSeparator();
bar.add(new ToolBarButton(exitAction));
contentPane.add(bar, "North");
// populate menu
JMenu menu = new JMenu("Color");
menu.add(yellowAction);
menu.add(blueAction);
menu.add(redAction);
menu.add(exitAction);
JMenuBar menuBar = new JMenuBar();
menuBar.add(menu);
setJMenuBar(menuBar);
}
}
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