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//**********************************************************************
// Package
//**********************************************************************
package doc.example;
//**********************************************************************
// Import list
//**********************************************************************
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import org.freixas.tablelayout.*;
/**
* This example compares the GridBagLayout to the TableLayout. The
* same layout is created using each layout manager. The layouts are
* displayed in their own window.
*
* @author Antonio Freixas
*/
// Copyright © 2004 Antonio Freixas
// All Rights Reserved.
public class Example1
{
//**********************************************************************
// Public Constants
//**********************************************************************
//**********************************************************************
// Private Constants
//**********************************************************************
//**********************************************************************
// Private Members
//**********************************************************************
//**********************************************************************
// main
//**********************************************************************
public static void
main(
String[] args)
{
new Example1();
}
//**********************************************************************
// Constructors
//**********************************************************************
/**
* Create the two windows and display them.
*/
public
Example1()
{
JFrame frame1 = createGridBagLayout();
JFrame frame2 = createTableLayout();
frame1.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame2.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame1.pack();
frame2.pack();
frame1.setLocation(10, 100);
frame2.setLocation(400, 100);
frame1.setVisible(true);
frame2.setVisible(true);
}
//**********************************************************************
// Private
//**********************************************************************
/**
* Create the layout using GridBagLayout. This code comes from the API
* page for GridBagLayout.
*
* @return The JFrame containing the layout.
*/
public JFrame
createGridBagLayout()
{
JFrame frame = new JFrame("GridBagLayout");
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
JPanel panel = new JPanel(gridbag);
frame.getContentPane().add(panel);
c.fill = GridBagConstraints.BOTH;
c.weightx = 1.0;
makebutton(panel, "Button1", gridbag, c);
makebutton(panel, "Button2", gridbag, c);
makebutton(panel, "Button3", gridbag, c);
c.gridwidth = GridBagConstraints.REMAINDER; //end row
makebutton(panel, "Button4", gridbag, c);
c.weightx = 0.0; //reset to the default
makebutton(panel, "Button5", gridbag, c); //another row
c.gridwidth = GridBagConstraints.RELATIVE; //next-to-last in row
makebutton(panel, "Button6", gridbag, c);
c.gridwidth = GridBagConstraints.REMAINDER; //end row
makebutton(panel, "Button7", gridbag, c);
c.gridwidth = 1; //reset to the default
c.gridheight = 2;
c.weighty = 1.0;
makebutton(panel, "Button8", gridbag, c);
c.weighty = 0.0; //reset to the default
c.gridwidth = GridBagConstraints.REMAINDER; //end row
c.gridheight = 1; //reset to the default
makebutton(panel, "Button9", gridbag, c);
makebutton(panel, "Button10", gridbag, c);
return frame;
}
/**
* Helper method for createGridBagLayout().
*
* @param panel The panel to add the button to.
* @param name The button's label.
* @param gridbag The GridBagLayout to use.
* @param c The constraints to use.
*/
private void
makebutton(
JPanel panel,
String name,
GridBagLayout gridbag,
GridBagConstraints c)
{
JButton button = new JButton(name);
gridbag.setConstraints(button, c);
panel.add(button);
}
/**
* Create the layout using TableLayout.
*
* @return The JFrame containing the layout.
*/
public JFrame
createTableLayout()
{
JFrame frame = new JFrame("TableLayout");
JPanel panel = new JPanel(new TableLayout("cols=4"));
frame.getContentPane().add(panel);
panel.add(new JButton("Button1"));
panel.add(new JButton("Button2"));
panel.add(new JButton("Button3"));
panel.add(new JButton("Button4"));
panel.add(new JButton("Button5"), "cspan=4");
panel.add(new JButton("Button6"), "cspan=3");
panel.add(new JButton("Button7"));
panel.add(new JButton("Button8"), "rspan=2");
panel.add(new JButton("Button9"), "cspan=3");
panel.add(new JButton("Button10"), "cspan=3 rweight=1");
return frame;
}
}
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