org.eclipse.swt.snippets.Snippet154.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet154.java

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/*******************************************************************************
 * Copyright (c) 2000, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.snippets;

/*
 * example snippet: embed a JTable in SWT (no flicker)
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 *
 * @since 3.0
 */
import java.awt.*;
import java.util.*;

import javax.swing.*;

import org.eclipse.swt.*;
import org.eclipse.swt.awt.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.widgets.Composite;

public class Snippet154 {

    public static void main(String[] args) {
        final Display display = new Display();
        final Shell shell = new Shell(display);
        shell.setText("Snippet 154");
        shell.setLayout(new FillLayout());

        Composite composite = new Composite(shell, SWT.NO_BACKGROUND | SWT.EMBEDDED);

        /*
        * Set a Windows specific AWT property that prevents heavyweight
        * components from erasing their background. Note that this
        * is a global property and cannot be scoped. It might not be
        * suitable for your application.
        */
        try {
            System.setProperty("sun.awt.noerasebackground", "true");
        } catch (NoSuchMethodError error) {
        }

        /* Create and setting up frame */
        Frame frame = SWT_AWT.new_Frame(composite);
        Panel panel = new Panel(new BorderLayout()) {
            @Override
            public void update(java.awt.Graphics g) {
                /* Do not erase the background */
                paint(g);
            }
        };
        frame.add(panel);
        JRootPane root = new JRootPane();
        panel.add(root);
        java.awt.Container contentPane = root.getContentPane();

        /* Creating components */
        int nrows = 1000, ncolumns = 10;
        Vector<Vector<String>> rows = new Vector<>();
        for (int i = 0; i < nrows; i++) {
            Vector<String> row = new Vector<>();
            for (int j = 0; j < ncolumns; j++) {
                row.addElement("Item " + i + "-" + j);
            }
            rows.addElement(row);
        }
        Vector<String> columns = new Vector<>();
        for (int i = 0; i < ncolumns; i++) {
            columns.addElement("Column " + i);
        }
        JTable table = new JTable(rows, columns);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        table.createDefaultColumnsFromModel();
        JScrollPane scrollPane = new JScrollPane(table);
        contentPane.setLayout(new BorderLayout());
        contentPane.add(scrollPane);

        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}