StockTable 6: Action and Dynamic Display : Table « Swing JFC « Java

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Java » Swing JFC » TableScreenshots 
StockTable 6: Action and Dynamic Display
StockTable 6: Action and Dynamic Display
  
/*
Swing, Second Edition
by Matthew Robinson, Pavel Vorobiev

*/
       
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.text.*;
import java.sql.*;

import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import javax.swing.table.*;

public class StocksTable6 extends JFrame 
{
  protected JTable m_table;
  protected StockTableData m_data;
  protected JLabel m_title;

  public StocksTable6() {
    super("Stocks Table");
    setSize(600300);

    m_data = new StockTableData();

    m_title = new JLabel(m_data.getTitle()
      new ImageIcon("money.gif"), SwingConstants.LEFT);
    m_title.setFont(new Font("TimesRoman",Font.BOLD,24));
    m_title.setForeground(Color.black);
    getContentPane().add(m_title, BorderLayout.NORTH);

    m_table = new JTable();
    m_table.setAutoCreateColumnsFromModel(false);
    m_table.setModel(m_data);
        
    for (int k = 0; k < StockTableData.m_columns.length; k++) {
      DefaultTableCellRenderer renderer = new 
        ColoredTableCellRenderer();
      renderer.setHorizontalAlignment(
        StockTableData.m_columns[k].m_alignment);
      TableColumn column = new TableColumn(k, 
      StockTableData.m_columns[k].m_width, renderer, null);
      m_table.addColumn(column);   
    }

    JTableHeader header = m_table.getTableHeader();
    header.setUpdateTableInRealTime(true);
    header.addMouseListener(m_data.new ColumnListener(m_table));
    header.setReorderingAllowed(true);

    m_table.getColumnModel().addColumnModelListener(
      m_data.new ColumnMovementListener());

    JScrollPane ps = new JScrollPane();
    ps.getViewport().add(m_table);
    getContentPane().add(ps, BorderLayout.CENTER);

    JMenuBar menuBar = createMenuBar();
      setJMenuBar(menuBar);

    WindowListener wndCloser = new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    };
    addWindowListener(wndCloser);
    setVisible(true);
  }

  protected JMenuBar createMenuBar() {
    JMenuBar menuBar = new JMenuBar();
        
    JMenu mFile = new JMenu("File");
    mFile.setMnemonic('f');

    JMenuItem mData = new JMenuItem("Retrieve Data...");
    mData.setMnemonic('r');
    ActionListener lstData = new ActionListener() { 
      public void actionPerformed(ActionEvent e) { 
        retrieveData()
      }
    };
    mData.addActionListener(lstData);
    mFile.add(mData);
    mFile.addSeparator();

    JMenuItem mExit = new JMenuItem("Exit");
    mExit.setMnemonic('x');
    ActionListener lstExit = new ActionListener() { 
      public void actionPerformed(ActionEvent e) {
        System.exit(0);
      }
    };
    mExit.addActionListener(lstExit);
    mFile.add(mExit);
    menuBar.add(mFile);

    JMenu mView = new JMenu("View");
    mView.setMnemonic('v');
    TableColumnModel model = m_table.getColumnModel();
    for (int k = 0; k < StockTableData.m_columns.length; k++) {
      JCheckBoxMenuItem item = new JCheckBoxMenuItem(
        StockTableData.m_columns[k].m_title);
      item.setSelected(true);
      TableColumn column = model.getColumn(k);
      item.addActionListener(new ColumnKeeper(column, 
        StockTableData.m_columns[k]));
      mView.add(item);
    }
    menuBar.add(mView);

    return menuBar;
  }

  public void retrieveData() {
    SimpleDateFormat frm = new SimpleDateFormat("MM/dd/yyyy");
    String currentDate = frm.format(m_data.m_date);
    String result = (String)JOptionPane.showInputDialog(this, 
      "Please enter date in form mm/dd/yyyy:""Input"
      JOptionPane.INFORMATION_MESSAGE, null, null, 
      currentDate);
    if (result==null)
      return;

    java.util.Date date = null;
    try 
      date = frm.parse(result)
    }
    catch (java.text.ParseException ex) { 
      date = null
    }
        
    if (date == null) {
      JOptionPane.showMessageDialog(this, 
        result+" is not a valid date",
        "Warning", JOptionPane.WARNING_MESSAGE);
      return;
    }

    setCursorCursor.getPredefinedCursor(Cursor.WAIT_CURSOR) );
    switch (m_data.retrieveData(date)) {
      case 0:    // Ok with data
        m_title.setText(m_data.getTitle());
        m_table.tableChanged(new TableModelEvent(m_data))
        m_table.repaint();
        break;
      case 1// No data
        JOptionPane.showMessageDialog(this, 
          "No data found for "+result,
          "Warning", JOptionPane.WARNING_MESSAGE);
        break;
      case -1// Error
        JOptionPane.showMessageDialog(this, 
          "Error retrieving data",
          "Warning", JOptionPane.WARNING_MESSAGE);
        break;
    }
    setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
  }

  class ColumnKeeper implements ActionListener
  {
    protected TableColumn m_column;
    protected ColumnData  m_colData;

    public ColumnKeeper(TableColumn column, ColumnData  colData) {
      m_column = column;
      m_colData = colData;
    }

    public void actionPerformed(ActionEvent e) {
      JCheckBoxMenuItem item = (JCheckBoxMenuItem)e.getSource();
      TableColumnModel model = m_table.getColumnModel();
      if (item.isSelected()) {
        model.addColumn(m_column);
      }
      else {
        model.removeColumn(m_column);
      }
      m_table.tableChanged(new TableModelEvent(m_data))
      m_table.repaint();
    }
  }

  public static void main(String argv[]) {
    new StocksTable6();
  }
}

class ColoredTableCellRenderer extends DefaultTableCellRenderer
{
  public void setValue(Object value
  {
    if (value instanceof ColorData) {
      ColorData cvalue = (ColorData)value;
      setForeground(cvalue.m_color);
      setText(cvalue.m_data.toString());
    }
    else if (value instanceof IconData) {
      IconData ivalue = (IconData)value;
      setIcon(ivalue.m_icon);
      setText(ivalue.m_data.toString());
    }
    else
      super.setValue(value);
  }
}

class Fraction
{
  public int m_whole;
  public int m_nom;
  public int m_den;

  public Fraction(double value) {
    int sign = value <? -1;
    value = Math.abs(value);
    m_whole = (int)value;
    m_den = 32;
    m_nom = (int)((value-m_whole)*m_den);
    while (m_nom!=&& m_nom%2==0) {
      m_nom /= 2;
      m_den /= 2;
    }
    if (m_whole==0)
      m_nom *= sign;
    else
      m_whole *= sign;
  }

  public double doubleValue() {
    return (double)m_whole + (double)m_nom/m_den;
  }

  public String toString() {
    if (m_nom==0)
      return ""+m_whole;
    else if (m_whole==0)
      return ""+m_nom+"/"+m_den;
    else
      return ""+m_whole+" "+m_nom+"/"+m_den;
  }
}

class SmartLong
{
  protected static NumberFormat FORMAT;
  static {
    FORMAT = NumberFormat.getInstance();
    FORMAT.setGroupingUsed(true);
  }

  public long m_value;

  public SmartLong(long value) { m_value = value; }

  public long longValue() { return m_value; }

  public String toString() { return FORMAT.format(m_value)}
}


class ColorData
{
  public Color  m_color;
  public Object m_data;
  public static Color GREEN = new Color(01280);
  public static Color RED = Color.red;

  public ColorData(Fraction data) {
    m_color = data.doubleValue() >= ? GREEN : RED;
    m_data  = data;
  }

  public ColorData(Color color, Object data) {
    m_color = color;
    m_data  = data;
  }
    
  public ColorData(Double data) {
    m_color = data.doubleValue() >= ? GREEN : RED;
    m_data  = data;
  }
    
  public String toString() {
    return m_data.toString();
  }
}

class IconData
{
  public ImageIcon  m_icon;
  public Object m_data;

  public IconData(ImageIcon icon, Object data) {
    m_icon = icon;
    m_data = data;
  }
    
  public String toString() {
    return m_data.toString();
  }
}

class StockData
{
  public static ImageIcon ICON_UP = new ImageIcon("ArrUp.gif");
  public static ImageIcon ICON_DOWN = new ImageIcon("ArrDown.gif");
  public static ImageIcon ICON_BLANK = new ImageIcon("blank.gif");

  public IconData  m_symbol;
  public String  m_name;
  public Fraction  m_last;
  public Fraction  m_open;
  public ColorData  m_change;
  public ColorData  m_changePr;
  public SmartLong  m_volume;

  public StockData(String symbol, String name, double last, 
   double open, double change, double changePr, long volume) {
    m_symbol = new IconData(getIcon(change), symbol);
    m_name = name;
    m_last = new Fraction(last);
    m_open = new Fraction(open);
    m_change = new ColorData(new Fraction(change));
    m_changePr = new ColorData(new Double(changePr));
    m_volume = new SmartLong(volume);
  }

  public static ImageIcon getIcon(double change) {
    return (change>? ICON_UP : (change<? ICON_DOWN : 
      ICON_BLANK));
  }
}

class ColumnData
{
  public String  m_title;
  public int     m_width;
  public int     m_alignment;
 
  public ColumnData(String title, int width, int alignment) {
    m_title = title;
    m_width = width;
    m_alignment = alignment;
  }
}

class StockTableData extends AbstractTableModel 
{
  static final public ColumnData m_columns[] {
    new ColumnData"Symbol"100, JLabel.LEFT ),
    new ColumnData"Name"160, JLabel.LEFT ),
    new ColumnData"Last"100, JLabel.RIGHT ),
    new ColumnData"Open"100, JLabel.RIGHT ),
    new ColumnData"Change"100, JLabel.RIGHT ),
    new ColumnData"Change %"100, JLabel.RIGHT ),
    new ColumnData"Volume"100, JLabel.RIGHT )
  };

  protected SimpleDateFormat m_frm;
  protected Vector m_vector;
  protected java.util.Date m_date;
  protected int m_columnsCount = m_columns.length;

  protected int m_sortCol = 0;
  protected boolean m_sortAsc = true;

  protected int m_result = 0;

  public StockTableData() {
    m_frm = new SimpleDateFormat("MM/dd/yyyy");
    m_vector = new Vector();
    setDefaultData();
  }

  public void setDefaultData() {
    try 
      m_date = m_frm.parse("4/6/1999")
    }
    catch (java.text.ParseException ex) { 
      m_date = null
    }

    m_vector.removeAllElements();
    m_vector.addElement(new StockData("ORCL""Oracle Corp."
      23.687525.375, -1.6875, -6.4224976600));
    m_vector.addElement(new StockData("EGGS""Egghead.com"
      17.2517.4375, -0.1875, -1.432146400));
    m_vector.addElement(new StockData("T""AT&T"
      65.187566, -0.8125, -0.10554000));
    m_vector.addElement(new StockData("LU""Lucent Technology"
      64.62559.93754.68759.6529856300));
    m_vector.addElement(new StockData("FON""Sprint"
      104.5625106.375, -1.8125, -1.821135100));
    m_vector.addElement(new StockData("ENML""Enamelon Inc."
      4.8755, -0.125035900))
    m_vector.addElement(new StockData("CPQ""Compaq Computers"
      30.87531.25, -0.375, -2.1811853900));
    m_vector.addElement(new StockData("MSFT""Microsoft Corp."
      94.062595.1875, -1.125, -0.9219836900));
    m_vector.addElement(new StockData("DELL""Dell Computers"
      46.187544.51.68756.2447310000));
    m_vector.addElement(new StockData("SUNW""Sun Microsystems"
      140.625130.93751010.62517734600));
    m_vector.addElement(new StockData("IBM""Intl. Bus. Machines"
      183183.125, -0.125, -0.514371400));
    m_vector.addElement(new StockData("HWP""Hewlett-Packard"
      7071.0625, -1.4375, -2.012410700));
    m_vector.addElement(new StockData("UIS""Unisys Corp."
      28.2529, -0.75, -2.592576200));
    m_vector.addElement(new StockData("SNE""Sony Corp."
      96.187595.6251.1251.18330600));
    m_vector.addElement(new StockData("NOVL""Novell Inc."
      24.062524.375, -0.3125, -3.026047900));
    m_vector.addElement(new StockData("HIT""Hitachi, Ltd."
      78.577.6250.8751.1249400));

    Collections.sort(m_vector, new 
      StockComparator(m_sortCol, m_sortAsc));
  }

  public int getRowCount() {
    return m_vector==null : m_vector.size()
  }

  public int getColumnCount() { 
    return m_columnsCount;
  

  public String getColumnName(int column) {
    String str = m_columns[column].m_title;
    if (column==m_sortCol)
      str += m_sortAsc ? ">>" "<<";
    return str;
  }
 
  public boolean isCellEditable(int nRow, int nCol) {
    return false;
  }

  public Object getValueAt(int nRow, int nCol) {
    if (nRow < || nRow>=getRowCount())
      return "";
    StockData row = (StockData)m_vector.elementAt(nRow);
    switch (nCol) {
      case 0return row.m_symbol;
      case 1return row.m_name;
      case 2return row.m_last;
      case 3return row.m_open;
      case 4return row.m_change;
      case 5return row.m_changePr;
      case 6return row.m_volume;
    }
    return "";
  }

  public String getTitle() {
    if (m_date==null)
      return "Stock Quotes";
    return "Stock Quotes at "+m_frm.format(m_date);
  }

  public int retrieveData(final java.util.Date date) {
    GregorianCalendar calendar = new GregorianCalendar();
    calendar.setTime(date);
    int month = calendar.get(Calendar.MONTH)+1;
    int day = calendar.get(Calendar.DAY_OF_MONTH);
    int year = calendar.get(Calendar.YEAR);

    final String query = "SELECT data.symbol, symbols.name, "+
      "data.last, data.open, data.change, data.changeproc, "+
      "data.volume FROM DATA INNER JOIN SYMBOLS "+
      "ON DATA.symbol = SYMBOLS.symbol WHERE "+
      "month(data.date1)="+month+" AND day(data.date1)="+day+
      " AND year(data.date1)="+year;

    Thread runner = new Thread() {
      public void run() {
        try {
          // Load the JDBC-ODBC bridge driver
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
          Connection conn = DriverManager.getConnection(
            "jdbc:odbc:Market""admin""");

          Statement stmt = conn.createStatement();
          ResultSet results = stmt.executeQuery(query);

          boolean hasData = false;
          while (results.next()) {
            if (!hasData) {
              m_vector.removeAllElements();
              hasData = true;
            }
            String  symbol = results.getString(1);
            String  name = results.getString(2);
            double  last = results.getDouble(3);
            double  open = results.getDouble(4);
            double  change = results.getDouble(5);
            double  changePr = results.getDouble(6);
            long volume = results.getLong(7);
            m_vector.addElement(new StockData(symbol, name, last, 
              open, change, changePr, volume));
          }
          results.close();
          stmt.close();
          conn.close();

          if (!hasData)    // We've got nothing
            m_result = 1;
        }
        catch (Exception e) {
          e.printStackTrace();
          System.err.println("Load data error: "+e.toString());
          m_result = -1;
        }
        m_date = date;
        Collections.sort(m_vector, 
          new StockComparator(m_sortCol, m_sortAsc));
        m_result = 0;
      }
    };
    runner.start();

    return m_result;
  }

  class ColumnListener extends MouseAdapter
  {
    protected JTable m_table;

    public ColumnListener(JTable table) {
      m_table = table;
    }

    public void mouseClicked(MouseEvent e) {
      TableColumnModel colModel = m_table.getColumnModel();
      int columnModelIndex = colModel.getColumnIndexAtX(e.getX());
      int modelIndex = colModel.getColumn(columnModelIndex).getModelIndex();

      if (modelIndex < 0)
        return;
      if (m_sortCol==modelIndex)
        m_sortAsc = !m_sortAsc;
      else
        m_sortCol = modelIndex;

      for (int i=0; i < m_columnsCount; i++) { //NEW
        TableColumn column = colModel.getColumn(i);
        column.setHeaderValue(getColumnName(column.getModelIndex()));    
      }
      m_table.getTableHeader().repaint();  

      Collections.sort(m_vector, new 
        StockComparator(modelIndex, m_sortAsc));
      m_table.tableChanged(
        new TableModelEvent(StockTableData.this))
      m_table.repaint();  
    }
  }

  class ColumnMovementListener implements TableColumnModelListener
  {
    public void columnAdded(TableColumnModelEvent e) {
      m_columnsCount++;
    }

    public void columnRemoved(TableColumnModelEvent e) {
      m_columnsCount--;
      if (m_sortCol >= e.getFromIndex())
        m_sortCol = 0;
    }

    public void columnMarginChanged(ChangeEvent e) {}
    public void columnMoved(TableColumnModelEvent e) {}
    public void columnSelectionChanged(ListSelectionEvent e) {}
  }
}

class StockComparator implements Comparator
{
  protected int     m_sortCol;
  protected boolean m_sortAsc;

  public StockComparator(int sortCol, boolean sortAsc) {
    m_sortCol = sortCol;
    m_sortAsc = sortAsc;
  }

  public int compare(Object o1, Object o2) {
    if(!(o1 instanceof StockData|| !(o2 instanceof StockData))
      return 0;
    StockData s1 = (StockData)o1;
    StockData s2 = (StockData)o2;
    int result = 0;
    double d1, d2;
    switch (m_sortCol) {
      case 0:    // symbol
        String str1 = (String)s1.m_symbol.m_data;
        String str2 = (String)s2.m_symbol.m_data;
        result = str1.compareTo(str2);
        break;
      case 1:    // name
        result = s1.m_name.compareTo(s2.m_name);
        break;
      case 2:    // last
        d1 = s1.m_last.doubleValue();
        d2 = s2.m_last.doubleValue();
        result = d1<d2 ? -(d1>d2 ? 0);
        break;
      case 3:    // open
        d1 = s1.m_open.doubleValue();
        d2 = s2.m_open.doubleValue();
        result = d1<d2 ? -(d1>d2 ? 0);
        break;
      case 4:    // change
        d1 = ((Fraction)s1.m_change.m_data).doubleValue();
        d2 = ((Fraction)s2.m_change.m_data).doubleValue();
        result = d1<d2 ? -(d1>d2 ? 0);
        break;
      case 5:    // change %
        d1 = ((Double)s1.m_changePr.m_data).doubleValue();
        d2 = ((Double)s2.m_changePr.m_data).doubleValue();
        result = d1<d2 ? -(d1>d2 ? 0);
        break;
      case 6:    // volume
        long l1 = s1.m_volume.longValue();
        long l2 = s2.m_volume.longValue();
        result = l1<l2 ? -(l1>l2 ? 0);
        break;
    }

    if (!m_sortAsc)
      result = -result;
    return result;
  }

  public boolean equals(Object obj) {
    if (obj instanceof StockComparator) {
      StockComparator compObj = (StockComparator)obj;
      return (compObj.m_sortCol==m_sortCol&& 
        (compObj.m_sortAsc==m_sortAsc);
    }
    return false;
  }
}           
         
    
  
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27.JTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
28.JTable.setColumnSelectionAllowed(boolean b);
29.JTable.setRowSelectionAllowed(boolean b);
30.JTable.setCellSelectionEnabled(boolean b);
31.Handle selection and model change events for a JTable.
32.ListSelectionModel rowSelMod = JTable.getSelectionModel();
33.ListSelectionModel colSelMod = JTable.getColumnModel().getSelectionModel();
34.JTree.getModel().addTreeModelListener(new TreeModelListener())
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36.the last column is moved to the first position
37.Allowing the User to Resize a Column in a JTable Component
38.Retrieve the value in the visible cell (1,2) in a JTable
39.Retrieve the value in cell (1,2) from the model
40.Change a cell in the 2nd visible column
41.Change a cell in the 3rd column in the model
42.Showing the Table Header in a Non-Scrollable JTable Component
43.Changing the Name of a Column in a JTable Component
44.Displaying an Icon in a Column Head of a JTable Component
45.Implementing Variable-Height Column Headers in a JTable Component
46.Removing the Column Headers from a Scrollable in a JTable Component
47.Creating a Custom Column Header Renderer in a JTable Component
48.Setting Column Header Tool Tips in a JTable Components
49.Setting Tool Tips on Cells in a JTable Component
50.Enable row selection (default) in a JTable
51.Enable column selection in a JTable
52.Enable cell selection in a JTable
53.Get default selection mode:MULTIPLE_INTERVAL_SELECTION
54.Allow only single a selection
55.Allow selection to span one contiguous set of rows, visible columns, or block of cells
56.Allow multiple selections of rows, visible columns, or cell blocks (default)
57.Select a column - column 0 in a JTable
58.Select an additional range of columns - columns 1 to 2
59.Deselect a range of columns - columns 0 to 1
60.Select a row - row 0
61.Select an additional range of rows - rows 1 to 2
62.Deselect a range of rows - rows 0 to 1
63.Select a cell: cell (2,1)
64.Extend the selection to include all cells (5,3)
65.Deselect a cell: cell (3,2), All cells in the row and column containing (3,2) are deselected.
66.Toggles the selection state, if it were called again, it exactly reverses the first call.
67.Select all cells
68.Deselect all cells
69.Column selection is enabled, get the indices of the selected columns
70.Row selection is enabled, Get the indices of the selected rows
71.Get selected row and selected index
72.Get the min and max ranges of selected cells
73.Check each cell in the min and max ranges of selected cells
74.Disabling Selections in a JTable Component
75.Getting the Anchor Cell in a JTable Component
76.Creating a Scrollable JTable Component
77.Disable auto resizing to make the table horizontal scrollable
78.Determining If a Cell Is Visible in a JTable Component
79.Making a Cell Visible in a JTable Component
80.Scrolling a Cell to the Center of a JTable Component
81.Show both horizontal and vertical grid lines (the default)
82.Don't show any grid lines
83.Show only vertical grid lines
84.Show only horizontal grid lines
85.Set the grid color
86.Getting the Gap Size Between Cells in a JTable Component
87.Add 5 spaces to the left and right sides of a cell.
88.Increase the row height
89.Programmatically Starting Cell Editing in a JTable Component
90.Save the current value in the cell being edited and stops the editing process
91.Discard any changes made by the user and stops the editing process
92.Disabling User Edits in a JTable
93.Disabling User Edits in a JTable with DefaultTableModel
94.Sorting the Rows in a JTable Component Based on a Column
95.Sorting a Column in a JTable Component
96.Listening for Selection Events in a JTable Component
97.Listening for Changes to the Rows and Columns of a JTable Component
98.Listening for Column-Related Changes in a JTable Component
99.Listening for Clicks on a Column Header in a JTable Component
100.Sorting and Filtering Tables
101.Use a regexFilter to filter table content
102.Creating a JTable with rows of variable height
103.Scroll JTable To Center
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