Как добавить изображение к пользовательской кнопке строки JTable, у меня есть JTable с JButton в первом столбце, и я хочу поместить изображение, но это отображается только при нажатии на него.
Вот мое изображение
А вот JButtonRenderer и JButtonEditor для размещения JButton в строке JTable.
ButtonRenderer.java
import java.awt.Component;
import javax.swing.JButton;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.table.TableCellRenderer;
/**
*
* @author joepa37
*/
public class ButtonRenderer extends JButton implements TableCellRenderer {
public ButtonRenderer() {
setOpaque(true);
}
@Override
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
setForeground(table.getSelectionForeground());
setBackground(table.getSelectionBackground());
} else {
setForeground(table.getForeground());
setBackground(UIManager.getColor("Button.background"));
}
setText((value == null) ? "" : value.toString());
return this;
}
}
ButtonEditor.java
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JOptionPane;
import javax.swing.JTable;
/**
*
* @author joepa37
*/
public class ButtonEditor extends DefaultCellEditor {
protected JButton button;
private String label;
private boolean isPushed;
public ButtonEditor(JCheckBox checkBox) {
super(checkBox);
button = new JButton(new ImageIcon(ButtonEditor.class.getResource("image.png")));
button.setOpaque(true);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
fireEditingStopped();
}
});
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
if (isSelected) {
button.setForeground(table.getSelectionForeground());
button.setBackground(table.getSelectionBackground());
} else {
button.setForeground(table.getForeground());
button.setBackground(table.getBackground());
}
label = (value == null) ? "" : value.toString();
button.setText(label);
isPushed = true;
return button;
}
@Override
public Object getCellEditorValue() {
if (isPushed) {
//
//
JOptionPane.showMessageDialog(button, label + ": Ouch!");
// System.out.println(label + ": Ouch!");
}
isPushed = false;
return new String(label);
}
@Override
public boolean stopCellEditing() {
isPushed = false;
return super.stopCellEditing();
}
@Override
protected void fireEditingStopped() {
super.fireEditingStopped();
}
}
imageRowButtonTable.java
import java.awt.Component;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableColumn;
/**
*
* @author joepa37
*/
public class imageRowButtonTable extends JFrame{
public imageRowButtonTable(){
super();
this.add(getPreview());
setSize(500,500);
setVisible(true);
}
public static void main(String args[]){
new imageRowButtonTable();
}
public Component getPreview ()
{
// Table
JTable table = new JTable ( new ExampleTableModel () );
JScrollPane scrollPane = new JScrollPane ( table );
// Custom column
TableColumn buttonColumn = table.getColumnModel ().getColumn ( 0 );
// Custom renderer
buttonColumn.setCellRenderer(new ButtonRenderer());
// Custom editor
buttonColumn.setCellEditor(new ButtonEditor(new JCheckBox()));
return scrollPane;
}
public class ExampleTableModel extends AbstractTableModel
{
private String[] columnNames = { "", "Option"};
private Object[][] data = { { "", "op1"},
{ "", "op2"},
{ "", "op3"},
};
public final Object[] longValues = { "", "Option"};
@Override
public int getColumnCount ()
{
return columnNames.length;
}
@Override
public int getRowCount ()
{
return data.length;
}
@Override
public String getColumnName ( int col )
{
return columnNames[ col ];
}
@Override
public Object getValueAt ( int row, int col )
{
return data[ row ][ col ];
}
@Override
public Class getColumnClass ( int c )
{
return longValues[ c ].getClass ();
}
@Override
public boolean isCellEditable ( int row, int col )
{
return true;
}
@Override
public void setValueAt ( Object value, int row, int col )
{
data[ row ][ col ] = value;
fireTableCellUpdated ( row, col );
}
}
}