/*
* Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle or the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package javademo.swing.splitpane;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
/*
* SplitPaneDividerDemo.java requires the following files:
* SizeDisplayer.java
* images/Cat.gif
* images/Dog.gif
*/
public class SplitPaneDividerDemo extends JPanel implements ActionListener
{
private static final long serialVersionUID = 1L;
private JSplitPane splitPane;
public SplitPaneDividerDemo()
{
super(new BorderLayout());
Font font = new Font("Serif", Font.ITALIC, 24);
ImageIcon icon = createImageIcon("images/Cat.gif");
SizeDisplayer sd1 = new SizeDisplayer("left", icon);
sd1.setMinimumSize(new Dimension(30, 30));
sd1.setFont(font);
icon = createImageIcon("images/Dog.gif");
SizeDisplayer sd2 = new SizeDisplayer("right", icon);
sd2.setMinimumSize(new Dimension(60, 60));
sd2.setFont(font);
splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, sd1, sd2);
splitPane.setResizeWeight(0.5);
splitPane.setOneTouchExpandable(true);
splitPane.setContinuousLayout(true);
add(splitPane, BorderLayout.CENTER);
add(createControlPanel(), BorderLayout.PAGE_END);
}
private JComponent createControlPanel()
{
JPanel panel = new JPanel();
JButton reset = new JButton("Reset");
reset.addActionListener(this);
panel.add(reset);
return panel;
}
// Required by ActionListener interface. Respond to reset button.
public void actionPerformed(ActionEvent e)
{
splitPane.resetToPreferredSizes();
}
/** Returns an ImageIcon, or null if the path was invalid. */
private static ImageIcon createImageIcon(String path)
{
java.net.URL imgURL = SplitPaneDividerDemo.class.getResource(path);
if (imgURL != null)
{
return new ImageIcon(imgURL);
}
else
{
System.err.println("Couldn't find file: " + path);
return null;
}
}
/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
*/
private static void createAndShowGUI()
{
// Create and set up the window.
JFrame frame = new JFrame("SplitPaneDividerDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
SplitPaneDividerDemo newContentPane = new SplitPaneDividerDemo();
newContentPane.setOpaque(true); // content panes must be opaque
frame.setContentPane(newContentPane);
// Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args)
{
// Schedule a job for the event-dispatching thread:
// creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI();
}
});
}
}