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Java Tutorial » Swing » JTabbedPane 
14.51.5.Adds tool tips to a table using a rendererPrevious/Next
Adds tool tips to a table using a renderer
/*
 *
 * Copyright (c) 1998 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
 * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
 * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * This software is not designed or intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear
 * facility. Licensee represents and warrants that it will not use or
 * redistribute the Software for such purposes.
 */

import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridLayout;

import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;

public class TableRenderDemo extends JPanel {
  private boolean DEBUG = false;

  public TableRenderDemo() {
    super(new GridLayout(10));

    JTable table = new JTable(new MyTableModel());
    table.setPreferredScrollableViewportSize(new Dimension(50070));

    // Create the scroll pane and add the table to it.
    JScrollPane scrollPane = new JScrollPane(table);

    // Set up column sizes.
    initColumnSizes(table);

    // Fiddle with the Sport column's cell editors/renderers.
    setUpSportColumn(table, table.getColumnModel().getColumn(2));

    // Add the scroll pane to this panel.
    add(scrollPane);
  }

  /*
   * This method picks good column sizes. If all column heads are wider than the
   * column's cells' contents, then you can just use column.sizeWidthToFit().
   */
  private void initColumnSizes(JTable table) {
    MyTableModel model = (MyTableModeltable.getModel();
    TableColumn column = null;
    Component comp = null;
    int headerWidth = 0;
    int cellWidth = 0;
    Object[] longValues = model.longValues;
    TableCellRenderer headerRenderer = table.getTableHeader().getDefaultRenderer();

    for (int i = 0; i < 5; i++) {
      column = table.getColumnModel().getColumn(i);

      comp = headerRenderer.getTableCellRendererComponent(null, column.getHeaderValue(), false,
          false, 00);
      headerWidth = comp.getPreferredSize().width;

      comp = table.getDefaultRenderer(model.getColumnClass(i)).getTableCellRendererComponent(table,
          longValues[i], false, false, 0, i);
      cellWidth = comp.getPreferredSize().width;

      if (DEBUG) {
        System.out.println("Initializing width of column " + i + ". " "headerWidth = "
            + headerWidth + "; cellWidth = " + cellWidth);
      }

      // XXX: Before Swing 1.1 Beta 2, use setMinWidth instead.
      column.setPreferredWidth(Math.max(headerWidth, cellWidth));
    }
  }

  public void setUpSportColumn(JTable table, TableColumn sportColumn) {
    // Set up the editor for the sport cells.
    JComboBox comboBox = new JComboBox();
    comboBox.addItem("Snowboarding");
    comboBox.addItem("Rowing");
    comboBox.addItem("Knitting");
    comboBox.addItem("Speed reading");
    comboBox.addItem("Pool");
    comboBox.addItem("None of the above");
    sportColumn.setCellEditor(new DefaultCellEditor(comboBox));

    // Set up tool tips for the sport cells.
    DefaultTableCellRenderer renderer = new DefaultTableCellRenderer();
    renderer.setToolTipText("Click for combo box");
    sportColumn.setCellRenderer(renderer);
  }

  class MyTableModel extends AbstractTableModel {
    private String[] columnNames = "First Name""Last Name""Sport""# of Years""Vegetarian" };

    private Object[][] data = {
        "Mary""Campione""Snowboarding"new Integer(5)new Boolean(false) },
        "Alison""Huml""Rowing"new Integer(3)new Boolean(true) },
        "Kathy""Walrath""Knitting"new Integer(2)new Boolean(false) },
        "Sharon""Zakhour""Speed reading"new Integer(20)new Boolean(true) },
        "Philip""Milne""Pool"new Integer(10)new Boolean(false) } };

    public final Object[] longValues = "Sharon""Campione""None of the above",
        new Integer(20), Boolean.TRUE };

    public int getColumnCount() {
      return columnNames.length;
    }

    public int getRowCount() {
      return data.length;
    }

    public String getColumnName(int col) {
      return columnNames[col];
    }

    public Object getValueAt(int row, int col) {
      return data[row][col];
    }

    /*
     * JTable uses this method to determine the default renderer/ editor for
     * each cell. If we didn't implement this method, then the last column would
     * contain text ("true"/"false"), rather than a check box.
     */
    public Class getColumnClass(int c) {
      return getValueAt(0, c).getClass();
    }

    /*
     * Don't need to implement this method unless your table's editable.
     */
    public boolean isCellEditable(int row, int col) {
      // Note that the data/cell address is constant,
      // no matter where the cell appears onscreen.
      if (col < 2) {
        return false;
      else {
        return true;
      }
    }

    /*
     * Don't need to implement this method unless your table's data can change.
     */
    public void setValueAt(Object value, int row, int col) {
      if (DEBUG) {
        System.out.println("Setting value at " + row + "," + col + " to " + value
            " (an instance of " + value.getClass() ")");
      }

      data[row][col= value;
      fireTableCellUpdated(row, col);

      if (DEBUG) {
        System.out.println("New value of data:");
        printDebugData();
      }
    }

    private void printDebugData() {
      int numRows = getRowCount();
      int numCols = getColumnCount();

      for (int i = 0; i < numRows; i++) {
        System.out.print("    row " + i + ":");
        for (int j = 0; j < numCols; j++) {
          System.out.print("  " + data[i][j]);
        }
        System.out.println();
      }
    }
  }

  public static void main(String[] args) {
    JFrame frame = new JFrame("TableRenderDemo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    // Create and set up the content pane.
    TableRenderDemo newContentPane = new TableRenderDemo();
    newContentPane.setOpaque(true)// content panes must be opaque
    frame.setContentPane(newContentPane);

    // Display the window.
    frame.pack();
    frame.setVisible(true);
  }
}
14.51.JTabbedPane
14.51.1.First usage of JTabbedPane
14.51.2.Adding and Removing TabsAdding and Removing Tabs
14.51.3.Get the index of the first tab that matches an icon
14.51.4.Changing tab's title, icon, mnemonic, tooltip, or component on a particular tab with one of the setXXXAt() methodsChanging tab's title, icon, mnemonic, tooltip, or component  on a particular tab with one of the setXXXAt() methods
14.51.5.Adds tool tips to a table using a rendererAdds tool tips to a table using a renderer
14.51.6.Specifying a tab's location: TOP, BOTTOM, LEFT, or RIGHTSpecifying a tab's location: TOP, BOTTOM, LEFT, or RIGHT
14.51.7.Changing background, foreground and iconChanging background, foreground and icon
14.51.8.To remove a tab, you can remove a specific tab with removeTabAt(int index), remove(int index), or remove(Component component)To remove a tab, you can remove a specific tab with  removeTabAt(int index), remove(int index), or remove(Component component)
14.51.9.Listening for Selected Tab ChangesListening for Selected Tab Changes
14.51.10.TabLayout Policy: SCROLL_TAB_LAYOUT or WRAP_TAP_LAYOUTTabLayout Policy: SCROLL_TAB_LAYOUT or WRAP_TAP_LAYOUT
14.51.11.Add Components to JTabbedPane
14.51.12.New Methods in the JTabPane Component (Add component to JTabPane)
14.51.13.JTabPane with TextField in the tabJTabPane with TextField in the tab
14.51.14.Add user icon to tab panelAdd user icon to tab panel
14.51.15.Add Button to tab barAdd Button to tab bar
14.51.16.Add a tab with a label taken from the name of the component
14.51.17.Add a tab with a label at the end of all tabs
14.51.18.Add a tab with a label and icon at the end of all tabs
14.51.19.Add a tab with a label, icon, and tool tip at the end of all tabs
14.51.20.Getting the Tabs in a JTabbedPane Container
14.51.21.Enable Scrolling Tabs in a JTabbedPane Container
14.51.22.Enabling the Selection of a Tab in a JTabbedPane Container Using a Keystroke
14.51.23.Enabling and Disabling a Tab in a JTabbedPane Container
14.51.24.Setting the Color of a Tab in a JTabbedPane Container
14.51.25.Setting the Tool Tip for a Tab in a JTabbedPane Container
14.51.26.Setting the Location of the Tabs in a JTabbedPane Container
14.51.27.Determining When the Selected Tab Changes in a JTabbedPane Container
14.51.28.Moving a Tab in a JTabbedPane Container
14.51.29.Insert a tab after the first tab
14.51.30.Get the index of the tab by matching the child component
14.51.31.Getting and Setting the Selected Tab in a JTabbedPane Container
14.51.32.Setting the Size of the Divider in a JSplitPane Container
14.51.33.Customizing a JTabbedPane Look and Feel
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