Mega Code Archive
JTable sorter
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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Collections;
import java.util.Comparator;
import java.util.GregorianCalendar;
import java.util.Vector;
import javax.swing.ImageIcon;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.TableColumnModelEvent;
import javax.swing.event.TableColumnModelListener;
import javax.swing.event.TableModelEvent;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
public class TableSortDemo extends JFrame{
protected JTable table = new JTable();
protected MyTableModel tableModel;
protected JLabel titleLabel = new JLabel("Click table header to sort the column.");
public TableSortDemo() {
super();
setSize(600, 300);
tableModel = new MyTableModel();
getContentPane().add(titleLabel, BorderLayout.NORTH);
table.setModel(tableModel);
JTableHeader header = table.getTableHeader();
header.setUpdateTableInRealTime(true);
header.addMouseListener(tableModel.new ColumnListener(table));
header.setReorderingAllowed(true);
JScrollPane ps = new JScrollPane();
ps.getViewport().add(table);
getContentPane().add(ps, BorderLayout.CENTER);
WindowListener wndCloser = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
addWindowListener(wndCloser);
setVisible(true);
}
public static void main(String argv[]) {
new TableSortDemo();
}
}
class MyTableModel extends AbstractTableModel {
protected int sortCol = 0;
protected boolean isSortAsc = true;
protected int m_result = 0;
protected int columnsCount = 1;
Vector vector = new Vector();
public MyTableModel() {
vector.removeAllElements();
vector.addElement(new Integer(24976600));
vector.addElement(new Integer(24));
vector.addElement(new Integer(2497));
vector.addElement(new Integer(249766));
vector.addElement(new Integer(2497660));
vector.addElement(new Integer(6600));
vector.addElement(new Integer(76600));
vector.addElement(new Integer(976600));
vector.addElement(new Integer(4976600));
}
public int getRowCount() {
return vector == null ? 0 : vector.size();
}
public int getColumnCount() {
return columnsCount;
}
public String getColumnName(int column) {
String str = "data";
if (column == sortCol)
str += isSortAsc ? " >>" : " <<";
return str;
}
public boolean isCellEditable(int nRow, int nCol) {
return false;
}
public Object getValueAt(int nRow, int nCol) {
if (nRow < 0 || nRow >= getRowCount())
return "";
if(nCol>1){
return "";
}
return vector.elementAt(nRow);
}
public String getTitle() {
return "data ";
}
class ColumnListener extends MouseAdapter {
protected JTable table;
public ColumnListener(JTable t) {
table = t;
}
public void mouseClicked(MouseEvent e) {
TableColumnModel colModel = table.getColumnModel();
int columnModelIndex = colModel.getColumnIndexAtX(e.getX());
int modelIndex = colModel.getColumn(columnModelIndex)
.getModelIndex();
if (modelIndex < 0)
return;
if (sortCol == modelIndex)
isSortAsc = !isSortAsc;
else
sortCol = modelIndex;
for (int i = 0; i < columnsCount; i++) {
TableColumn column = colModel.getColumn(i);
column.setHeaderValue(getColumnName(column.getModelIndex()));
}
table.getTableHeader().repaint();
Collections.sort(vector,new MyComparator(isSortAsc));
table.tableChanged(new TableModelEvent(MyTableModel.this));
table.repaint();
}
}
}
class MyComparator implements Comparator {
protected boolean isSortAsc;
public MyComparator( boolean sortAsc) {
isSortAsc = sortAsc;
}
public int compare(Object o1, Object o2) {
if (!(o1 instanceof Integer) || !(o2 instanceof Integer))
return 0;
Integer s1 = (Integer) o1;
Integer s2 = (Integer) o2;
int result = 0;
result = s1.compareTo(s2);
if (!isSortAsc)
result = -result;
return result;
}
public boolean equals(Object obj) {
if (obj instanceof MyComparator) {
MyComparator compObj = (MyComparator) obj;
return compObj.isSortAsc == isSortAsc;
}
return false;
}
}
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