Resize columns as table resizes : Table « SWT « Java Tutorial






/*******************************************************************************
 * 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();
  }
}








17.49.Table
17.49.1.Tables
17.49.2.Create a table (lazy)Create a table (lazy)
17.49.3.new Table(shell, SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION| SWT.CHECK)new Table(shell, SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION| SWT.CHECK)
17.49.4.Table Styles
17.49.5.Create a table with 1,000,000 items (lazy)Create a table with 1,000,000 items (lazy)
17.49.6.Create a virtual table and add 1000 entries to it every 500 msCreate a virtual table and add 1000 entries to it every 500 ms
17.49.7.Create a table with columns, headers, linesCreate a table with columns, headers, lines
17.49.8.Create a table without columns and headersCreate a table without columns and headers
17.49.9.Create fake tool tips for items in a tableCreate fake tool tips for items in a table
17.49.10.Set table selection to scroll a tableSet table selection to scroll a table
17.49.11.Set top index to scroll a tableSet top index to scroll a table
17.49.12.Resize columns as table resizes
17.49.13.Set table selected item and remove it from tableSet table selected item and remove it from table
17.49.14.Get TableItem Index in a TableGet TableItem Index in a Table
17.49.15.Insert TableItem by IndexInsert TableItem by Index
17.49.16.Table With CheckBox CellTable With CheckBox Cell
17.49.17.Fill a table in the ThreadFill a table in the Thread
17.49.18.Create a table with 1,000,000 items (lazy, page size 64)Create a table with 1,000,000 items (lazy, page size 64)