Mega Code Archive
Create and dispose children of a composite
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/*******************************************************************************
* Copyright (c) 2000, 2004 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
*******************************************************************************/
/*
* Composite example snippet: create and dispose children of a composite
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;
public class CompositeCreateDisposeChildren {
static int pageNum = 0;
static Composite pageComposite;
public static void main(String args[]) {
Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
Button button = new Button(shell, SWT.PUSH);
button.setText("Push");
pageComposite = new Composite(shell, SWT.NONE);
pageComposite.setLayout(new GridLayout());
pageComposite.setLayoutData(new GridData());
button.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
if ((pageComposite != null) && (!pageComposite.isDisposed())) {
pageComposite.dispose();
}
pageComposite = new Composite(shell, SWT.NONE);
pageComposite.setLayout(new GridLayout());
pageComposite.setLayoutData(new GridData());
if (pageNum++ % 2 == 0) {
Table table = new Table(pageComposite, SWT.BORDER);
table.setLayoutData(new GridData());
for (int i = 0; i < 5; i++) {
new TableItem(table, SWT.NONE).setText("table item " + i);
}
} else {
new Button(pageComposite, SWT.RADIO).setText("radio");
}
shell.layout(true);
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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