GridLayoutWidgetExclude.java Source code

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Here is the source code for GridLayoutWidgetExclude.java

Source

/*******************************************************************************
 * Copyright (c) 2000, 2005 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;
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.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

/*
 * Exclude a widget from a GridLayout
 * 
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 * 
 * @since 3.1
 */

public class GridLayoutWidgetExclude {

    public static void main(String[] args) {

        Display display = new Display();
        final Shell shell = new Shell(display);
        shell.setLayout(new GridLayout(3, false));

        Button b = new Button(shell, SWT.PUSH);
        b.setText("Button 0");

        final Button bHidden = new Button(shell, SWT.PUSH);
        bHidden.setText("Button 1");
        GridData data = new GridData();
        data.exclude = true;
        data.horizontalSpan = 2;
        data.horizontalAlignment = SWT.FILL;
        bHidden.setLayoutData(data);

        b = new Button(shell, SWT.PUSH);
        b.setText("Button 2");
        b = new Button(shell, SWT.PUSH);
        b.setText("Button 3");
        b = new Button(shell, SWT.PUSH);
        b.setText("Button 4");

        b = new Button(shell, SWT.CHECK);
        b.setText("hide");
        b.setSelection(true);
        b.addListener(SWT.Selection, new Listener() {
            public void handleEvent(Event e) {
                Button b = (Button) e.widget;
                GridData data = (GridData) bHidden.getLayoutData();
                data.exclude = b.getSelection();
                bHidden.setVisible(!data.exclude);
                shell.layout(false);
            }
        });
        shell.setSize(400, 400);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}