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/*******************************************************************************
* Copyright (c) 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.snippets;
/*
* FormLayout example snippet: use a form layout to hide/show a composite
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*
* @since 3.5
*/
import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class Snippet313 {
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout (new FormLayout());
final Button button = new Button(shell, SWT.PUSH);
button.setText(">>");
FormData data = new FormData ();
data.top = new FormAttachment (0, 4);
data.right = new FormAttachment (100, -4);
button.setLayoutData (data);
final Composite composite = new Composite(shell, SWT.BORDER);
final FormData down = new FormData ();
down.top = new FormAttachment (button, 4, SWT.BOTTOM);
down.bottom = new FormAttachment (100, -4);
down.left = new FormAttachment (0, 4);
down.right = new FormAttachment (100, -4);
final FormData up = new FormData ();
up.top = new FormAttachment (0);
up.bottom = new FormAttachment (0);
up.left = new FormAttachment (0);
up.right = new FormAttachment (0);
composite.setLayoutData (up);
button.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (composite.getLayoutData() == up) {
composite.setLayoutData (down);
button.setText("<<");
} else {
composite.setLayoutData (up);
button.setText(">>");
}
shell.pack ();
}
});
shell.pack ();
shell.open ();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ())
display.sleep ();
}
display.dispose ();
}
}
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