TableColumnResizeTableResize.java Source code

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Here is the source code for TableColumnResizeTableResize.java

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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
 *******************************************************************************/
//package org.eclipse.swt.snippets;
/*
 * Table example snippet: resize columns as table resizes
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;

public class TableColumnResizeTableResize {

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

        final Composite comp = new Composite(shell, SWT.NONE);
        final Table table = new Table(comp, SWT.BORDER | SWT.V_SCROLL);
        table.setHeaderVisible(true);
        table.setLinesVisible(true);
        final TableColumn column1 = new TableColumn(table, SWT.NONE);
        column1.setText("Column 1");
        final TableColumn column2 = new TableColumn(table, SWT.NONE);
        column2.setText("Column 2");
        for (int i = 0; i < 10; i++) {
            TableItem item = new TableItem(table, SWT.NONE);
            item.setText(new String[] { "item 0" + i, "item 1" + i });
        }
        comp.addControlListener(new ControlAdapter() {
            public void controlResized(ControlEvent e) {
                Rectangle area = comp.getClientArea();
                Point preferredSize = table.computeSize(SWT.DEFAULT, SWT.DEFAULT);
                int width = area.width - 2 * table.getBorderWidth();
                if (preferredSize.y > area.height + table.getHeaderHeight()) {
                    // Subtract the scrollbar width from the total column width
                    // if a vertical scrollbar will be required
                    Point vBarSize = table.getVerticalBar().getSize();
                    width -= vBarSize.x;
                }
                Point oldSize = table.getSize();
                if (oldSize.x > area.width) {
                    // table is getting smaller so make the columns
                    // smaller first and then resize the table to
                    // match the client area width
                    column1.setWidth(width / 3);
                    column2.setWidth(width - column1.getWidth());
                    table.setSize(area.width, area.height);
                } else {
                    // table is getting bigger so make the table
                    // bigger first and then make the columns wider
                    // to match the client area width
                    table.setSize(area.width, area.height);
                    column1.setWidth(width / 3);
                    column2.setWidth(width - column1.getWidth());
                }
            }
        });

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