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| public class PopupEditor extends AbstractCellEditor implements TableCellEditor,
PropertyChangeListener {
private TableCellRenderer renderer;
private JXPopupMenu popupMenu = new JXPopupMenu();
class JXPopupMenu extends JPopupMenu {
private boolean closeable;
public void close() {
closeable = true;
setVisible(false);
}
public void setVisible(boolean b) {
if (b || closeable) {
super.setVisible(b);
closeable = false;
}
}
}
private JButton validate = makeButton("V", Color.GREEN.darker(),
new ActionListener() {
public void actionPerformed(ActionEvent e) {
stopCellEditing();
}
});
private JButton cancel = makeButton("X", Color.RED,
new ActionListener() {
public void actionPerformed(ActionEvent e) {
cancelCellEditing();
}
});
private JPanel panelButtons;
private JCheckBoxMenuItem[] checkBoxMenuItems;
private String ws = ", ";
private static final MouseListener mouseListener = new MouseAdapter() {};
public PopupEditor(TableCellRenderer renderer, String[] items) {
this.renderer = renderer;
panelButtons = new JPanel(new FlowLayout(FlowLayout.RIGHT, 0, 0));
panelButtons.add(validate);
panelButtons.add(cancel);
setChoosableItems(items);
}
private JButton makeButton(String text, Color color,
ActionListener listener) {
JButton button = new JButton(text);
button.setForeground(color);
button.setBorder(BorderFactory.createRaisedBevelBorder());
button.setFocusPainted(false);
button.addActionListener(listener);
return button;
}
public boolean stopCellEditing() {
popupMenu.close();
return super.stopCellEditing();
}
public void cancelCellEditing() {
popupMenu.close();
super.cancelCellEditing();
}
public void setChoosableItems(String[] items) {
popupMenu.removeAll();
this.checkBoxMenuItems = new JCheckBoxMenuItem[items.length];
for (int i = 0; i < items.length; i++) {
JCheckBoxMenuItem menuItem = new JCheckBoxMenuItem(items[i]);
checkBoxMenuItems[i] = menuItem;
popupMenu.add(menuItem);
}
popupMenu.addSeparator();
popupMenu.add(panelButtons);
}
public Object getCellEditorValue() {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < checkBoxMenuItems.length; i++) {
JCheckBoxMenuItem menuItem = checkBoxMenuItems[i];
if (menuItem.isSelected()) {
if (sb.length() > 0) {
sb.append(getWordSeparator());
}
sb.append(menuItem.getText());
}
}
return sb.toString();
}
public void setCellEditorValue(Object value) {
String[] words = value.toString().split(getWordSeparator());
for (int i = 0; i < checkBoxMenuItems.length; i++) {
boolean selected = false;
JCheckBoxMenuItem menuItem = checkBoxMenuItems[i];
String text = menuItem.getText();
for (int j = 0; j < words.length; j++) {
if (words[j].equals(text)) {
selected = true;
break;
}
}
menuItem.setSelected(selected);
}
}
public String getWordSeparator() {
return ws;
}
public void setWordSeparator(String ws) {
this.ws = ws;
}
public void propertyChange(PropertyChangeEvent evt) {
if (evt.getOldValue() == this && evt.getNewValue() == null) {
popupMenu.close();
}
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected,
int row, int column) {
table.removePropertyChangeListener("tableCellEditor", this);
table.addPropertyChangeListener("tableCellEditor", this);
setCellEditorValue(value.toString());
Rectangle rect = table.getCellRect(row, column, false);
Dimension size = popupMenu.getPreferredSize();
size.width = rect.width;
popupMenu.setPreferredSize(size);
popupMenu.show(table, rect.x, rect.y + rect.height);
Component comp = renderer
.getTableCellRendererComponent(table, value, isSelected, false, row,
column);
comp.removeMouseListener(mouseListener);
comp.addMouseListener(mouseListener);
return comp;
}
} |
