Finalizado soporte de persistencia

src/VistaControlador/Menu.java

@@ -3,12 +3,14 @@ package VistaControlador;
 import java.awt.Dimension;
 import java.awt.GridBagConstraints;
 import java.awt.GridBagLayout;
+import java.io.IOException;
 import java.time.LocalDate;
 import java.time.Month;
 import java.util.ArrayList;
 
 import javax.swing.JButton;
 import javax.swing.JFrame;
+import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 import javax.swing.JTabbedPane;
 import javax.swing.JTextArea;
@@ -17,6 +19,7 @@ import javax.swing.event.ChangeListener;
 
 import Logica.Gestion;
 import Logica.Meses;
+import Logica.Transaccion;
 
 public class Menu extends JFrame{
 	protected JPanel panelCentral;
@@ -24,20 +27,30 @@ public class Menu extends JFrame{
 	protected VistaAniadirVisualizar ingresos;
 	protected VistaAniadirVisualizar gastos;
 	protected VistaPanelLateral panel;
+	String nombreDatos;
 	Meses meses;
 	ArrayList<VistaAniadirVisualizar> pestanias;
 	ArrayList<ControladorAniadirVisualizar> controladores;
 	protected Gestion datosGastos;
 	protected Gestion datosIngresos;
 	public Menu() {
+		this.nombreDatos = ".mes";
+		setDefaultCloseOperation(javax.swing.WindowConstants.DO_NOTHING_ON_CLOSE);
+		 
+        addWindowListener(new java.awt.event.WindowAdapter() {
+            public void windowClosing(java.awt.event.WindowEvent evt) {
+                close();
+            }
+        });
 		this.pestania = new JTabbedPane();
+		GridBagConstraints constrain = new GridBagConstraints();
+		
 		this.cargarGestiones(LocalDate.now().getYear(), LocalDate.now().getMonth());
 		this.cargarPestanias();
 		this.setLayout(new GridBagLayout());
-		GridBagConstraints constrain = new GridBagConstraints();
 		this.panel = new VistaPanelLateral(constrain, this.meses);
 		this.panelCentral = new JPanel();
-		
+
 		constrain.fill = GridBagConstraints.VERTICAL;
 		constrain.gridx = 0;
 		constrain.gridy = 0;
@@ -49,16 +62,26 @@ public class Menu extends JFrame{
 		setDefaultCloseOperation(3);
 		setLocationRelativeTo(null);
 		ControladorPanelLateral controlador3 = new ControladorPanelLateral(this.panel, this);
-		this.pestania.addChangeListener((ChangeListener)->{
-			if(this.pestania.getTabCount()<0) {
-				this.panel.actualizarDatos(meses.getGestionesActuales().get(this.pestania.getSelectedIndex()));
-			}
-		});
+		this.listenerPestania();
 		this.add(this.panel);
 	}
 	
+	private void close(){
+        if (JOptionPane.showConfirmDialog(rootPane, "¿Desea guardar el estado?",
+                "Salir del sistema", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
+        	try {
+				this.meses.guardarMeses(this.nombreDatos);
+			} catch (IOException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+        }
+            System.exit(0);
+    }   
+	
 	private void iniciarMes(int anio, Month mes) {
 		this.pestania.removeAll();
+		this.listenerPestania();
 		meses.aniadirGestion("Ingresos", anio, mes, true);
 		meses.aniadirGestion("Gastos", anio, mes, false);
 		this.pestanias=new ArrayList<VistaAniadirVisualizar>();
@@ -73,6 +96,15 @@ public class Menu extends JFrame{
 	void cargarGestiones(int anio, Month mes) {
 		if(this.meses==null) {
 			this.meses=new Meses();
+			try {
+				meses.cargarMeses(this.nombreDatos);
+			} catch (ClassNotFoundException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			} catch (IOException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
 		}
 		this.meses.elegirMes(anio, mes);
 		if(this.meses.getGestionesActuales().size() == 0) {
@@ -84,8 +116,17 @@ public class Menu extends JFrame{
 	
 	private void cargarMes() {
 		this.pestania.removeAll();
-		this.pestanias.clear();
-		this.controladores.clear();
+		this.listenerPestania();
+		if(this.pestanias == null) {
+			this.pestanias = new ArrayList<VistaAniadirVisualizar>();
+		}else {
+			this.pestanias.clear();
+		}
+		if(this.controladores == null) {
+			this.controladores = new ArrayList<ControladorAniadirVisualizar>();
+		}else {
+			this.controladores.clear();
+		}
 		for(Gestion gestion:this.meses.getGestionesActuales()) {
 			VistaAniadirVisualizar vista = new VistaAniadirVisualizar(this, gestion);
 			ControladorAniadirVisualizar controlador = new ControladorAniadirVisualizar(vista);
@@ -98,9 +139,11 @@ public class Menu extends JFrame{
 	
 	void cargarPestanias() {
 		this.pestania.removeAll();
+		this.listenerPestania();
 		for(VistaAniadirVisualizar vista:this.pestanias) {
 			this.pestania.addTab(vista.getName(),vista);
 		}
+		this.pestania.setSelectedIndex(0);
 	}
 	
 	void aniadirGestion(String nombre, boolean sumaOResta) {
@@ -111,4 +154,19 @@ public class Menu extends JFrame{
 		this.pestania.addTab(vista.getName(),vista);
 	}
 	
+	void listenerPestania(){
+		if(this.pestania.getChangeListeners().length == 1) {
+			this.pestania.addChangeListener((ChangeListener)->{
+				if(this.pestania.getTabCount()>0) {
+					try {
+						this.panel.actualizarDatos(meses.getGestionesActuales().get(this.pestania.getSelectedIndex()));
+					}catch (Exception e) {
+						// TODO: handle exception
+					}
+				}
+			});
+		}
+		
+	}
+	
 }