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/**
* Another JTable example, showing how column attributes can be refined
* even when columns have been created automatically. Here we create some
* specialised renderers and editors as well as changing widths and colors
* for some of the columns in the SwingSet demo table.
*
* @author Philip Milne
*/
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
import java.awt.Dimension;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.Color;
public class TableExample4 {
public TableExample4() {
JFrame frame = new JFrame("Table");
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {System.exit(0);}});
// Take the dummy data from SwingSet.
final String[] names = {"First Name", "Last Name", "Favorite Color",
"Favorite Number", "Vegetarian"};
final Object[][] data = {
{"Mark", "Andrews", "Red", new Integer(2), Boolean.TRUE},
{"Tom", "Ball", "Blue", new Integer(99), Boolean.FALSE},
{"Alan", "Chung", "Green", new Integer(838), Boolean.FALSE},
{"Jeff", "Dinkins", "Turquois", new Integer(8), Boolean.TRUE},
{"Amy", "Fowler", "Yellow", new Integer(3), Boolean.FALSE},
{"Brian", "Gerhold", "Green", new Integer(0), Boolean.FALSE},
{"James", "Gosling", "Pink", new Integer(21), Boolean.FALSE},
{"David", "Karlton", "Red", new Integer(1), Boolean.FALSE},
{"Dave", "Kloba", "Yellow", new Integer(14), Boolean.FALSE},
{"Peter", "Korn", "Purple", new Integer(12), Boolean.FALSE},
{"Phil", "Milne", "Purple", new Integer(3), Boolean.FALSE},
{"Dave", "Moore", "Green", new Integer(88), Boolean.FALSE},
{"Hans", "Muller", "Maroon", new Integer(5), Boolean.FALSE},
{"Rick", "Levenson", "Blue", new Integer(2), Boolean.FALSE},
{"Tim", "Prinzing", "Blue", new Integer(22), Boolean.FALSE},
{"Chester", "Rose", "Black", new Integer(0), Boolean.FALSE},
{"Ray", "Ryan", "Gray", new Integer(77), Boolean.FALSE},
{"Georges", "Saab", "Red", new Integer(4), Boolean.FALSE},
{"Willie", "Walker", "Phthalo Blue", new Integer(4), Boolean.FALSE},
{"Kathy", "Walrath", "Blue", new Integer(8), Boolean.FALSE},
{"Arnaud", "Weber", "Green", new Integer(44), Boolean.FALSE}
};
// Create a model of the data.
TableModel dataModel = new AbstractTableModel() {
// These methods always need to be implemented.
public int getColumnCount() { return names.length; }
public int getRowCount() { return data.length;}
public Object getValueAt(int row, int col) {return data[row][col];}
// The default implementations of these methods in
// AbstractTableModel would work, but we can refine them.
public String getColumnName(int column) {return names[column];}
public Class getColumnClass(int c) {return getValueAt(0, c).getClass();}
public boolean isCellEditable(int row, int col) {return true;}
public void setValueAt(Object aValue, int row, int column) {
System.out.println("Setting value to: " + aValue);
data[row][column] = aValue;
}
};
// Create the table
JTable tableView = new JTable(dataModel);
// Turn off auto-resizing so that we can set column sizes programmatically.
// In this mode, all columns will get their preferred widths, as set blow.
tableView.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
// Create a combo box to show that you can use one in a table.
JComboBox comboBox = new JComboBox();
comboBox.addItem("Red");
comboBox.addItem("Orange");
comboBox.addItem("Yellow");
comboBox.addItem("Green");
comboBox.addItem("Blue");
comboBox.addItem("Indigo");
comboBox.addItem("Violet");
TableColumn colorColumn = tableView.getColumn("Favorite Color");
// Use the combo box as the editor in the "Favorite Color" column.
colorColumn.setCellEditor(new DefaultCellEditor(comboBox));
// Set a pink background and tooltip for the Color column renderer.
DefaultTableCellRenderer colorColumnRenderer = new DefaultTableCellRenderer();
colorColumnRenderer.setBackground(Color.pink);
colorColumnRenderer.setToolTipText("Click for combo box");
colorColumn.setCellRenderer(colorColumnRenderer);
// Set a tooltip for the header of the colors column.
TableCellRenderer headerRenderer = colorColumn.getHeaderRenderer();
if (headerRenderer instanceof DefaultTableCellRenderer)
((DefaultTableCellRenderer)headerRenderer).setToolTipText("Hi Mom!");
// Set the width of the "Vegetarian" column.
TableColumn vegetarianColumn = tableView.getColumn("Vegetarian");
vegetarianColumn.setPreferredWidth(100);
// Show the values in the "Favorite Number" column in different colors.
TableColumn numbersColumn = tableView.getColumn("Favorite Number");
DefaultTableCellRenderer numberColumnRenderer = new DefaultTableCellRenderer() {
public void setValue(Object value) {
int cellValue = (value instanceof Number) ? ((Number)value).intValue() : 0;
setForeground((cellValue > 30) ? Color.black : Color.red);
setText((value == null) ? "" : value.toString());
}
};
numberColumnRenderer.setHorizontalAlignment(JLabel.RIGHT);
numbersColumn.setCellRenderer(numberColumnRenderer);
numbersColumn.setPreferredWidth(110);
// Finish setting up the table.
JScrollPane scrollpane = new JScrollPane(tableView);
scrollpane.setBorder(new BevelBorder(BevelBorder.LOWERED));
scrollpane.setPreferredSize(new Dimension(430, 200));
frame.getContentPane().add(scrollpane);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
new TableExample4();
}
}