?? test.java
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import java.awt.*;
import java.awt.event.*;
import java.text.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
public class Test extends JFrame {
JTable table = new JTable(new StereoDeckModel());
public Test() {
initializeInUseColumn();
initializePriceColumn();
initializeVolumeColumn();
sizeColumns();
TableColumnModel tcm = table.getColumnModel();
TableCellEditor ce;
table.setSelectionMode(
ListSelectionModel.SINGLE_SELECTION);
table.getSelectionModel().addListSelectionListener(
new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
StereoDeckModel model =
(StereoDeckModel)table.getModel();
if(!e.getValueIsAdjusting()) {
model.updateBulbs(table.getSelectedRow());
table.repaint();
}
}
});
/*
for(int col=0; col < tcm.getColumnCount(); ++col) {
TableCellEditor editor = table.getCellEditor(0,col);
TableColumn column = tcm.getColumn(col);
column.setCellEditor(
new NoSelectionEditorDecorator(editor));
}
*/
getContentPane().add(new JScrollPane(table),
BorderLayout.CENTER);
}
private void initializeInUseColumn() {
TableColumn inUseColumn = table.getColumn("In Use");
inUseColumn.setCellRenderer(new TableCellBulbRenderer());
inUseColumn.setCellEditor(new TableCellBulbEditor());
}
private void initializePriceColumn() {
TableColumn priceColumn = table.getColumn("Price");
JComboBox combo = new JComboBox();
// Combo box items are Numbers ...
combo.addItem(new Double(159.99));
combo.addItem(new Double(169.99));
combo.addItem(new Double(229.99));
combo.addItem(new Double(449.99));
combo.addItem(new Double(699.99));
combo.setRenderer(new ListCellCurrencyRenderer());
priceColumn.setCellRenderer(
new TableCellCurrencyRenderer());
priceColumn.setCellEditor(new PriceCellEditor(combo));
}
private void initializeVolumeColumn() {
TableColumn volumeColumn = table.getColumn("Volume");
TableCellRenderer renderer =
new TableCellVolumeRenderer();
TableCellEditor editor =
new TableCellVolumeEditor(renderer);
volumeColumn.setCellRenderer(renderer);
volumeColumn.setCellEditor(editor);
Dimension ps = ((JComponent)renderer).getPreferredSize();
table.setRowHeight(ps.height);
}
public static void main(String args[]) {
final JFrame f = new Test();
f.setBounds(300,300,559,368);
f.setTitle("Car Stereo Deck");
f.setVisible(true);
f.setDefaultCloseOperation(
WindowConstants.DISPOSE_ON_CLOSE);
f.addWindowListener(new WindowAdapter() {
public void windowClosed(WindowEvent e) {
System.exit(0);
}
});
}
private void sizeColumns() {
TableColumnModel tcm = table.getColumnModel();
for(int i=0; i < tcm.getColumnCount(); ++i) {
TableColumn column = tcm.getColumn(i);
int w = getPreferredWidthForColumn(column);
column.setMinWidth(w);
column.setMaxWidth(w);
}
}
public int getPreferredWidthForColumn(TableColumn col) {
int hw = columnHeaderWidth(col), // hw = header width
cw = widestCellInColumn(col); // cw = column width
return hw > cw ? hw+10 : cw+10;
}
private int columnHeaderWidth(TableColumn col) {
TableCellRenderer renderer = col.getHeaderRenderer();
Component comp = renderer.getTableCellRendererComponent(
table, col.getHeaderValue(),
false, false, 0, 0);
return comp.getPreferredSize().width;
}
private int widestCellInColumn(TableColumn col) {
int c = col.getModelIndex(), width=0, maxw=0;
for(int r=0; r < table.getRowCount(); ++r) {
TableCellRenderer renderer =
table.getCellRenderer(r,c);
Component comp =
renderer.getTableCellRendererComponent(
table, table.getValueAt(r,c),
false, false, r, c);
width = comp.getPreferredSize().width;
maxw = width > maxw ? width : maxw;
}
return maxw;
}
}
class NoSelectionEditorDecorator implements TableCellEditor {
private TableCellEditor realThing;
public NoSelectionEditorDecorator(TableCellEditor realThing) {
this.realThing = realThing;
}
public Component getTableCellEditorComponent(
JTable table, Object value,
boolean isSelected,
int row, int column) {
return realThing.getTableCellEditorComponent(table,
value, isSelected, row, column);
}
public boolean stopCellEditing() {
return realThing.stopCellEditing();
}
public void cancelCellEditing() {
realThing.cancelCellEditing();
}
public void addCellEditorListener(CellEditorListener l) {
realThing.addCellEditorListener(l);
}
public void removeCellEditorListener(CellEditorListener l) {
realThing.removeCellEditorListener(l);
}
public boolean isCellEditable(EventObject e) {
return realThing.isCellEditable(e);
}
public boolean shouldSelectCell(EventObject e) {
return false;
}
public Object getCellEditorValue() {
return realThing.getCellEditorValue();
}
}
class ListCellCurrencyRenderer extends DefaultListCellRenderer {
public Component getListCellRendererComponent(
JList list,
Object value,
int index,
boolean isSelected,
boolean hasFocus) {
JLabel c = (JLabel)
super.getListCellRendererComponent(
list, value, index,
isSelected, hasFocus);
Format format = NumberFormat.getCurrencyInstance();
c.setText(value == null ? "" : format.format(value));
return c;
}
}
class TableCellCurrencyRenderer extends DefaultTableCellRenderer {
public void setValue(Object value) {
Format format = NumberFormat.getCurrencyInstance();
setText(value == null ? "" : format.format(value));
}
}
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