public void itemStateChanged(ItemEvent e) {
int evento = e.getStateChange();
if (evento == ItemEvent.SELECTED) {
String nivel = comboNivel.getSelectedItem().toString();
Fachada fachada = Fachada.getInstancia();
List<Aula> lista = fachada.cadastroAula().buscarNivel(nivel);
tabela.montarTabela(lista);
}
}
public TelaManterAulas() {
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setBounds(100, 100, 658, 442);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JPanel panel = new JPanel();
panel.setBackground(Color.WHITE);
panel.setBounds(10, 11, 630, 389);
contentPane.add(panel);
panel.setLayout(null);
JLabel lblListagemDeAulas = new JLabel("Manter de Aulas");
lblListagemDeAulas.setFont(new Font("Tahoma", Font.PLAIN, 25));
lblListagemDeAulas.setBounds(196, 11, 190, 50);
panel.add(lblListagemDeAulas);
JLabel lblNvel = new JLabel("N\u00EDvel:");
lblNvel.setBounds(35, 93, 46, 14);
panel.add(lblNvel);
comboNivel = new JComboBox<String>();
comboNivel.setBounds(74, 90, 80, 20);
panel.add(comboNivel);
carregarCombo();
comboNivel.addItemListener(this);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(35, 138, 555, 187);
panel.add(scrollPane);
tabela = new Tabela(new String[] {"Descrição", "Nível", "Material"});
tabela.getColumnModel().getColumn(0).setResizable(false);
tabela.getColumnModel().getColumn(0).setPreferredWidth(300);
tabela.getColumnModel().getColumn(1).setResizable(false);
tabela.getColumnModel().getColumn(1).setPreferredWidth(50);
tabela.getColumnModel().getColumn(2).setResizable(false);
tabela.getColumnModel().getColumn(2).setPreferredWidth(300);
tabela.montarTabela(Fachada.getInstancia().cadastroAula().listarAulas());
scrollPane.setViewportView(tabela);
btnVisualizar = new JButton("Visualizar");
btnVisualizar.setBounds(294, 336, 98, 23);
panel.add(btnVisualizar);
btnRemover = new JButton("Remover");
btnRemover.addActionListener(this);
btnRemover.setBounds(402, 336, 89, 23);
panel.add(btnRemover);
btnEditar = new JButton("Editar");
btnEditar.setBounds(501, 336, 89, 23);
panel.add(btnEditar);
}
private void remover() {
int linha = tabela.getSelectedRow();
if (linha != -1) {
Object[] options = {"OK", "Cancelar"};
int resposta =
JOptionPane.showOptionDialog(
this,
"Tem certeza que deseja remover?",
"Alerta !!",
JOptionPane.DEFAULT_OPTION,
JOptionPane.WARNING_MESSAGE,
null,
options,
options[0]);
if (resposta == 0) {
Aula aula = (Aula) tabela.getModel().getValueAt(linha, 0);
Fachada fachada = Fachada.getInstancia();
fachada.cadastroAula().removerAula(aula);
tabela.montarTabela(Fachada.getInstancia().cadastroAula().listarAulas());
}
}
}