Java tutorial
import java.awt.BorderLayout; import java.awt.Color; import java.awt.Component; import java.awt.GridLayout; import java.awt.Point; import java.awt.Rectangle; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.EventObject; import java.util.Vector; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JSlider; import javax.swing.JTable; import javax.swing.JWindow; import javax.swing.SwingConstants; import javax.swing.event.CellEditorListener; import javax.swing.event.ChangeEvent; import javax.swing.table.AbstractTableModel; import javax.swing.table.TableCellEditor; import javax.swing.table.TableCellRenderer; public class MainClass extends JFrame { public MainClass() { super("Customer Editor Test"); setSize(600, 160); setDefaultCloseOperation(EXIT_ON_CLOSE); MixerModel test = new MixerModel(); JTable jt = new JTable(test); jt.setDefaultRenderer(Volume.class, new VolumeRenderer()); JScrollPane jsp = new JScrollPane(jt); getContentPane().add(jsp, BorderLayout.CENTER); } public static void main(String args[]) { MainClass mt = new MainClass(); mt.setVisible(true); } } class MixerModel extends AbstractTableModel { String headers[] = { "Track", "Start", "Stop", "Left Volume", "Right Volume" }; Class columnClasses[] = { String.class, String.class, String.class, Volume.class, Volume.class }; Object data[][] = { { "Bass", "0:00:000", "1:00:000", new Volume(56), new Volume(56) }, { "Strings", "0:00:000", "0:52:010", new Volume(72), new Volume(52) }, { "Brass", "0:08:000", "1:00:000", new Volume(99), new Volume(0) }, { "Wind", "0:08:000", "1:00:000", new Volume(0), new Volume(99) }, }; public int getRowCount() { return data.length; } public int getColumnCount() { return headers.length; } public Class getColumnClass(int c) { return columnClasses[c]; } public String getColumnName(int c) { return headers[c]; } public boolean isCellEditable(int r, int c) { return true; } public Object getValueAt(int r, int c) { return data[r][c]; } public void setValueAt(Object value, int r, int c) { if (c >= 3) { ((Volume) data[r][c]).setVolume(value); } else { data[r][c] = value; } } } class Volume { private int volume; public Volume(int v) { setVolume(v); } public Volume() { this(50); } public void setVolume(int v) { volume = (v < 0 ? 0 : v > 100 ? 100 : v); } public void setVolume(Object v) { if (v instanceof String) { setVolume(Integer.parseInt((String) v)); } else if (v instanceof Number) { setVolume(((Number) v).intValue()); } else if (v instanceof Volume) { setVolume(((Volume) v).getVolume()); } } public int getVolume() { return volume; } public String toString() { return String.valueOf(volume); } } class VolumeRenderer extends JSlider implements TableCellRenderer { public VolumeRenderer() { super(SwingConstants.HORIZONTAL); setSize(115, 15); } public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { if (value == null) { return this; } if (value instanceof Volume) { setValue(((Volume) value).getVolume()); } else { setValue(0); } return this; } }