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| import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.Serializable;
import javax.swing.AbstractCellEditor;
import javax.swing.JButton;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
public abstract class TableButton extends AbstractCellEditor implements TableCellRenderer, TableCellEditor {
private static final long serialVersionUID = 1L;
private final JButton buttonRenderer;
private final JButton buttonEditor;
private final ButtonActionListener actionListener;
private Color unselectedBackground;
private Color unselectedForeground;
private transient Object data;
public TableButton() {
buttonRenderer = new JButton();
buttonEditor = new JButton();
actionListener = new ButtonActionListener();
buttonEditor.addActionListener(actionListener);
}
public void setForeground(Color c) {
buttonRenderer.setBackground(c);
buttonRenderer.setForeground(c);
unselectedForeground = c;
}
public void setBackground(Color c) {
buttonRenderer.setBackground(c);
buttonEditor.setBackground(c);
unselectedBackground = c;
}
public void updateUI() {
buttonRenderer.updateUI();
buttonEditor.updateUI();
setForeground(null);
setBackground(null);
}
public Object getCellEditorValue() {
return data;
}
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
decorateButton(buttonRenderer, table, value, isSelected, hasFocus, row, column);
return buttonRenderer;
}
protected void decorateButton(JButton button, JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
String text = getButtonText(table, value, isSelected, hasFocus, row, column);
if( text==null ) {
button.setText("");
}
else {
button.setText(text);
}
Color fg = null;
Color bg = null;
JTable.DropLocation dropLocation = table.getDropLocation();
if (dropLocation != null
&& !dropLocation.isInsertRow()
&& !dropLocation.isInsertColumn()
&& dropLocation.getRow() == row
&& dropLocation.getColumn() == column) {
fg = UIManager.getColor("Table.dropCellForeground");
bg = UIManager.getColor("Table.dropCellBackground");
isSelected = true;
}
if (isSelected) {
button.setForeground(fg == null ? table.getSelectionForeground()
: fg);
button.setBackground(bg == null ? table.getSelectionBackground()
: bg);
} else {
Color background = unselectedBackground != null
? unselectedBackground
: table.getBackground();
if (background == null || background instanceof javax.swing.plaf.UIResource) {
Color alternateColor = UIManager.getColor("Table.alternateRowColor");
if (alternateColor != null && row % 2 != 0) {
background = alternateColor;
}
}
button.setForeground(unselectedForeground != null
? unselectedForeground
: table.getForeground());
button.setBackground(background);
}
button.setFont(table.getFont());
if (hasFocus) {
if (!isSelected && table.isCellEditable(row, column)) {
Color col;
col = UIManager.getColor("Table.focusCellForeground");
if (col != null) {
button.setForeground(col);
}
col = UIManager.getColor("Table.focusCellBackground");
if (col != null) {
button.setBackground(col);
}
}
}
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
data=value;
decorateButton(buttonEditor, table, value, isSelected, true, row, column);
actionListener.setAction(table, value, row, column);
return buttonEditor;
}
protected abstract String getButtonText(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column);
protected abstract void actionPerformed(JTable table, Object value, int row, int column);
private class ButtonActionListener implements ActionListener, Serializable {
private static final long serialVersionUID = 1L;
private transient JTable table;
private transient Object value;
private transient int row;
private transient int column;
public ButtonActionListener() {
}
public void setAction(JTable table, Object value,
int row, int column) {
this.table=table;
this.value=value;
this.row=row;
this.column=column;
}
public void actionPerformed(ActionEvent e) {
TableButton.this.actionPerformed( table, value, row, column);
stopCellEditing();
}
}
public void install(JTable table, int column) {
table.getColumnModel().getColumn(column).setCellRenderer(this);
table.getColumnModel().getColumn(column).setCellEditor(this);
}
public void install(JTable table, Class<?> columnClass) {
table.setDefaultRenderer(columnClass,this);
table.setDefaultEditor(columnClass, this);
}
} |
