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JTable의 셀 편집기를 작성합니다. 이제 버그가 있습니다. 처음 로딩 할 때 기본값을 보여주고 싶습니다. 편집이 끝나면 사용자 입력이 표시됩니다. 응용 프로그램을 실행하면 버그를 이해할 수 있습니다.JTable 셀 편집기 버그
문제를 해결하는 방법은 무엇입니까?
감사합니다.
package com.swing;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Arrays;
import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;
public class PropPageTest extends JPanel {
private static final long serialVersionUID = 1555593265606867986L;
public JTableX table;
public DefaultTableModel model;
private String[] col_names = { "Name", "Value" };
private String[] anchor_values = { "CENTER", "NORTH" };
public String[] default_value = {"John", "NORTH"};
public boolean isFirstTimeLoad = true;
private void createGUI() {
setLayout(new BorderLayout());
model = new DefaultTableModel(col_names, 2) {
private static final long serialVersionUID = 478700329843848400L;
public String[] prop_names = { "Name", "Anchor" };
public Object getValueAt(int row, int col) {
if (col == 0) return prop_names[row];
if(isFirstTimeLoad){
isFirstTimeLoad = false;
return default_value[row];
}
else {
return super.getValueAt(row, col);
}
}
public boolean isCellEditable(int row, int col) {
if (col == 0) return false;
return true;
}
};
table = new JTableX(model);
JTextField txtFld = new JTextField();
table.registerCellEditor(0, new DefaultCellEditor(txtFld));
JComboBox cb = new JComboBox(anchor_values);
table.registerCellEditor(1, new DefaultCellEditor(cb));
add(table, BorderLayout.CENTER);
}
public static void main(String[] args) {
JFrame f = new JFrame("test");
f.setSize(300, 350);
final PropPageTest test = new PropPageTest();
f.getContentPane().add(test, BorderLayout.CENTER);
JPanel buttonPanel = new JPanel();
JButton saveBtn = new JButton("Save");
buttonPanel.add(saveBtn);
f.getContentPane().add(buttonPanel, BorderLayout.SOUTH);
saveBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
test.table.stopCellEditing();
String[] newArr = new String[2];
newArr[0] = test.model.getValueAt(0, 1)+"";
newArr[1] = test.model.getValueAt(1, 1)+"";
boolean isTrue = Arrays.equals(test.default_value, newArr);
System.out.println("new value --" + test.model.getValueAt(0, 1));
System.out.println("new value --" + test.model.getValueAt(1, 1));
System.out.println("is true --" + isTrue);
}
});
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
f.setLocationRelativeTo(null);
}
public PropPageTest() {
createGUI();
}
}
- 다른 파일
package com.swing;
import java.util.HashMap;
import java.util.Set;
import javax.swing.JTable;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableModel;
public class JTableX extends JTable {
private static final long serialVersionUID = -7180009397735740833L;
private final HashMap<Integer, TableCellEditor> rowEditorMap;
public JTableX(TableModel tm) {
super(tm);
rowEditorMap = new HashMap<Integer, TableCellEditor>();
this.setRowSelectionAllowed(false);
this.setColumnSelectionAllowed(false);
}
public void registerCellEditor(int row, TableCellEditor editor){
rowEditorMap.put(row, editor);
}
public TableCellEditor getCellEditor(int row, int col) {
TableCellEditor tmpEditor = null;
if (rowEditorMap != null) tmpEditor = rowEditorMap.get(row);
if (tmpEditor != null) return tmpEditor;
return super.getCellEditor(row, col);
}
public void stopCellEditing() {
if (rowEditorMap != null) {
Set<Integer> keySet = rowEditorMap.keySet();
for (Integer i : keySet) {
TableCellEditor tmpEditor = rowEditorMap.get(i);
if (tmpEditor != null) {
tmpEditor.stopCellEditing();
}
}
}
}
}