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Window management: Difference between revisions
Added Java implementation
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{{libheader|Icon Programming Library}}
[http://www.cs.arizona.edu/icon/library/src/procs/graphics.icn graphics.icn provides graphics]
=={{header|Java}}==
Java cannot (easily) manipulate windows created by other programs. This code manipulates windows that it has created, but any window created in the same JVM can be controlled similarly. This example uses Swing - for AWT or SWT go figure.
<lang Java>import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.lang.reflect.InvocationTargetException;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
public class WindowController extends JFrame {
// Create UI on correct thread
public static void main( final String[] args ) {
EventQueue.invokeLater (
new Runnable() {
public void run() {
new WindowController();
}
}
);
}
private JComboBox list;
// Button class to call the right method
private class ControlButton extends JButton {
private ControlButton( final String name ) {
super(
new AbstractAction( name ) {
public void actionPerformed( final ActionEvent e ) {
try {
WindowController.class.getMethod( "do" + name )
.invoke ( WindowController.this );
} catch ( final Exception x ) { // poor practice
x.printStackTrace(); // also poor practice
}
}
}
);
}
}
// UI for controlling windows
public WindowController() {
super( "Controller" );
final JPanel main = new JPanel();
final JPanel controls = new JPanel();
setLocationByPlatform( true );
setResizable( false );
setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
setLayout( new BorderLayout( 3, 3 ) );
getRootPane().setBorder( new EmptyBorder( 3, 3, 3, 3 ) );
add( new JLabel( "Add windows and control them." ), BorderLayout.NORTH );
main.add( list = new JComboBox() );
add( main, BorderLayout.CENTER );
controls.setLayout( new GridLayout( 0, 1, 3, 3 ) );
controls.add( new ControlButton( "Add" ) );
controls.add( new ControlButton( "Hide" ) );
controls.add( new ControlButton( "Show" ) );
controls.add( new ControlButton( "Close" ) );
controls.add( new ControlButton( "Maximise" ) );
controls.add( new ControlButton( "Minimise" ) );
controls.add( new ControlButton( "Move" ) );
controls.add( new ControlButton( "Resize" ) );
add( controls, BorderLayout.EAST );
pack();
setVisible( true );
}
// These are the windows we're controlling, but any JFrame would do
private static class ControlledWindow extends JFrame {
private int num;
public ControlledWindow( final int num ) {
super( Integer.toString( num ) );
this.num = num;
setLocationByPlatform( true );
getRootPane().setBorder( new EmptyBorder( 3, 3, 3, 3 ) );
setDefaultCloseOperation( JFrame.DISPOSE_ON_CLOSE );
add( new JLabel( "I am window " + num + ". Use the controller to control me." ) );
pack();
setVisible( true );
}
public String toString() {
return "Window " + num;
}
}
// Here comes the useful bit - window control code
// Everything else was just to allow us to do this!
public void doAdd() {
list.addItem( new ControlledWindow( list.getItemCount () + 1 ) );
pack();
}
public void doHide() {
( ( JFrame ) list.getSelectedItem() ).setVisible( false );
}
public void doShow() {
( ( JFrame ) list.getSelectedItem() ).setVisible( true );
}
public void doClose() {
( ( JFrame ) list.getSelectedItem() ).dispose();
}
public void doMinimise() {
( ( JFrame ) list.getSelectedItem() ).setState( Frame.ICONIFIED );
}
public void doMaximise() {
( ( JFrame ) list.getSelectedItem() ).setExtendedState( Frame.MAXIMIZED_BOTH );
}
public void doMove() {
( ( JFrame ) list.getSelectedItem() ).setLocation
(
Integer.parseInt( JOptionPane.showInputDialog( "Horizontal position?" ) ),
Integer.parseInt( JOptionPane.showInputDialog( "Vertical position?" ) )
);
}
public void doResize() {
final JFrame window = ( JFrame ) list.getSelectedItem();
window.setBounds
(
window.getX(),
window.getY(),
Integer.parseInt( JOptionPane.showInputDialog( "Width?" ) ),
Integer.parseInt( JOptionPane.showInputDialog( "Height?" ) )
);
}
}
</lang>
=={{header|Mathematica}}==
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