Bom dia!
Estou tendo um problema para exibir o cabecalho da minha JTable.
Quando instancio de dentro desta classe aparece o cabeçalho
import java.awt.event.*;
import java.util.Vector;
import javax.swing.*;
public class MyTable extends JTable {
private MyTableModel model;
private static DBLayer db = DBLayer.getInstance();
public MyTable(MyTableModel tableModel) {
model = tableModel;
setModel(model);
setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
setFillsViewportHeight(true);
}
public void addRow(String table, String[] data) {
db.addRow(table, data);
model.addRow(data);
}
public void editRow(String table, int id, String[] data) {
db.editRow(table, id, data);
model.editRow(getSelectedRow(), data);
}
public static void main(String args[]) {
JFrame f = new JFrame();
db = DBLayer.getInstance();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Vector<Object[]> v = new Vector<Object[]>();
v = db.getTableData("usuario");
String[] s = db.getTableMetadata("usuario");
MyTableModel m = new MyTableModel(v, s);
MyTable t = new MyTable(m);
f.getContentPane().add(new JScrollPane(t));
f.setVisible(true);
}
}mas quando instancio daqui não aparece.
import java.awt.*;
import java.awt.event.*;
import java.util.Vector;
import javax.swing.*;
import com.jgoodies.forms.layout.*;
public class Projeto extends JPanel{
private JPanel panel;
private MyTableModel model;
private MyTable table;
private MyMenu menu;
private DBLayer db = DBLayer.getInstance();
public Projeto() {
setLayout(new BorderLayout());
add(getPanel(), BorderLayout.CENTER);
}
public JPanel getPanel() {
CellConstraints cc = new CellConstraints();
FormLayout layout = new FormLayout(
//columns
"4dlu, " +
"pref:grow, " +
"4dlu",
//rows
"4dlu, " +
"pref, " +
"2dlu, " +
"fill:pref:grow, " +
"4dlu"
);
panel = new JPanel(layout);
panel.setBackground(Color.CYAN);
JLabel title = new JLabel("Projeto");
title.setFont(Constants.TITLE_FONT);
Vector<Object[]> v = new Vector<Object[]>();
v = db.getTableData("usuario");
String[] s = db.getTableMetadata("usuario");
model = new MyTableModel(v, s);
table = new MyTable(model);
Handler handler = new Handler();
table.addMouseListener(handler);
panel.add(title, cc.xy(2, 2));
panel.add(table, cc.xy(2, 4));
return panel;
}
public static void main(String[] args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(new Projeto());
f.setVisible(true);
f.setExtendedState(JFrame.MAXIMIZED_BOTH);
}
}MyTableModel:
import java.util.Vector;
import javax.swing.*;
import javax.swing.table.AbstractTableModel;
public class MyTableModel extends AbstractTableModel {
private Vector<Object[]> data = null;
private String[] columns;
public MyTableModel(Vector<Object[]> d, String[] c) {
setRows(d);
setColumns(c);
}//construtor
public Vector<Object[]> getRows() {
return data;
}
public void setRows(Vector<Object[]> d) {
data = d;
}
public String[] getColumns() {
return columns;
}
public void setColumns(String[] c){
columns = c;
}
public int getRowCount() {
return getRows().size();
}
public int getColumnCount() {
return getColumns().length;
}
public String getColumnName(int i) {
return columns[i].toString();
}
public void setValueAt(Object value, int rowIndex, int columnIndex) {
Object[] o = getRows().get(rowIndex);
o[columnIndex] = value;
fireTableCellUpdated(rowIndex, columnIndex);
}
public Object getValueAt(int rowIndex, int columnIndex) {
Object[] o = (String[])getRows().get(rowIndex);
return o[columnIndex];
}
public void addRow(String[] data) {
getRows().add(data);
int row = getRows().size()-1;
fireTableRowsInserted(row,row);
return;
}
public void editRow(int rowIndex, String[] values) {
for(int i = 0; i < values.length; i++) {
setValueAt(values, rowIndex, i);
}
}
}Alguém poderia me ajudar me dizendo porque aparece a tabela sem o cabeçalho?
Obrigado