Dimensionare automaticamente componenti SWING

[bircastri]

perfetto ecco tutto il codice allora

package Panel;

import java.awt.*;
import java.awt.event.*;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Vector;

import javax.swing.*;
import javax.swing.table.AbstractTableModel;

import Componenti_Swing.CentraComponents;
import Componenti_Swing.Dimensione;
import Componenti_Swing.LabelFormat;
import Componenti_Swing.TextFieldFormat;
import Panel.MainPanel.TableExample2;
import Print.FoglioFattura;

import com.itextpdf.text.DocumentException;
import com.toedter.calendar.JDateChooser;

import esempio.Visualizzazioni;

public class PanelNoteCredito extends JPanel{
    static String tutto = "Stampa tutto";
    static String dataa = "Stampa per data";
    static JDialog frame;
    MainPanel mPanel;
JButton buttonSalva,buttonModifica,buttonCancella;
    JLabel picture;
    TextFieldFormat textDescrizione;
    Visualizzazioni db;
    JScrollPane scrollPane;
    JTable tableRicette;
    Font fontTable;
    String descrVecchia;
    Vector v;
    MyTableModel3 tableModel3;
    
    public PanelNoteCredito() {
        super(new BorderLayout());
        
        db = new Visualizzazioni("provaDB");
		try {
			db.connetti();
		} catch (InstantiationException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		} catch (IllegalAccessException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		fontTable = new Font("Century Gothic", Font.PLAIN, 14);
        //Create the radio buttons.

       // birdButton.setSelected(false);


        
        

        //Group the radio buttons.


        //Register a listener for the radio buttons.
        

        //Set up the picture label.
        buttonSalva = new JButton();
        buttonSalva.setIcon(new ImageIcon(getClass().getResource("/resources/SalvaR.png")));
        buttonSalva.setText("Salva");
      //  buttonSalva.setPreferredSize(new Dimension(45,49));
        buttonSalva.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt)
            {
           	    String descrizione = textDescrizione.getText();
           	    if(descrizione.length()==0)
           	    {
           	    	JOptionPane.showMessageDialog(getRootPane(), "Non hai inserito alcun carattere nel campo Descrizione","Attenzione",JOptionPane.WARNING_MESSAGE);
           	    }
           	    else
           	    {
           	    	if(db.eseguiAggiornamento("INSERT INTO DESCRIZIONENOTE VALUES('"+descrizione+"')"))
           	    	{
           	    		JOptionPane.showMessageDialog(getRootPane(), "Salvataggio eseguito con successo");
           	    		pulisci();
           	    		dimensionaTabella();
           	    	}
           	    	else
           	    	{
           	    		JOptionPane.showMessageDialog(getRootPane(), "Errore durante il salvataggio","Errore",JOptionPane.WARNING_MESSAGE);
           	    	}
           	    }
        }});//fine button stampa
        
        buttonModifica = new JButton();
        buttonModifica.setIcon(new ImageIcon(getClass().getResource("/resources/Modifica.png")));
        buttonModifica.setText("Modifica");
        buttonModifica.setEnabled(false);
        buttonModifica.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt)
            {
           	    if(db.eseguiAggiornamento("UPDATE DESCRIZIONENOTE SET Descrizione ='"+textDescrizione.getText()+"' WHERE Descrizione ='"+descrVecchia+"'"))
           	    {
           	    	JOptionPane.showMessageDialog(getRootPane(), "Modifica eseguita con successo");
       	    		pulisci();
       	    		dimensionaTabella();
       	    	}
       	    	else
       	    	{
       	    		JOptionPane.showMessageDialog(getRootPane(), "Errore durante la modifica","Errore",JOptionPane.WARNING_MESSAGE);
       	    	}
           	    
        }});//fine button stampa
        
        buttonCancella = new JButton();
        buttonCancella.setIcon(new ImageIcon(getClass().getResource("/resources/cestino.png")));
        buttonCancella.setText("Cancella");
        buttonCancella.setEnabled(false);
        buttonCancella.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt)
            {
            	if(db.eseguiAggiornamento("DELETE FROM DESCRIZIONENOTE WHERE Descrizione ='"+textDescrizione.getText()+"'"))
           	    {
           	    	JOptionPane.showMessageDialog(getRootPane(), "Eliminazione eseguita con successo");
       	    		pulisci();
       	    		dimensionaTabella();
       	    	}
       	    	else
       	    	{
       	    		JOptionPane.showMessageDialog(getRootPane(), "Errore durante l'eliminazione della nota","Errore",JOptionPane.WARNING_MESSAGE);
       	    	}
        }});//fine button stampa
        
        
        
        
    	
        v = db.eseguiQuery("SELECT DESCRIZIONE FROM DESCRIZIONENOTE ORDER BY DESCRIZIONE");
        tableModel3 = new MyTableModel3(v);
        tableRicette = new JTable(tableModel3);
        tableRicette.setRowHeight(20);
        tableRicette.setFont(fontTable);
        tableRicette.setFillsViewportHeight(true);
        tableRicette.addMouseListener(new MyMouseAdapter2());
        scrollPane = new javax.swing.JScrollPane();
        scrollPane.setName("jScrollPane1");
        scrollPane.setViewportView(tableRicette);
		// table.setPreferredSize(dTable);
        scrollPane.setPreferredSize(new Dimension(600,300));
        scrollPane.getViewport().add(tableRicette);
        scrollPane.setVisible(true);
        //	System.out.println(v);x
    //    tableModel3 = new MyTableModel3(v);
     //   tableRicette = new JTable(tableModel3);
        //dimensionaTabella();
        
     //   tableRicette.setPreferredScrollableViewportSize(new Dimension(700, 150));
        
        
      //  scrollPane = new JScrollPane(tableRicette);
        
        
        LabelFormat labelDescrizione = new LabelFormat("Descrizione Nota Credito: ");
        textDescrizione = new TextFieldFormat();
        
        //Put the radio buttons in a column in a panel.
        JPanel radioPanel = new JPanel();
        GridBagConstraints GBC5 = new GridBagConstraints();
	      Container CR5 = new Container();
	      GridBagLayout GBL5 = new GridBagLayout();
	      CR5.setComponentOrientation(ComponentOrientation.UNKNOWN);
	      CR5.setLayout(GBL5);     
	      radioPanel.add(CR5);
	  
	      GBC5 = new GridBagConstraints();
	      CR5.add(scrollPane);
	      GBC5.gridx=0;
	      GBC5.gridy=0;
	      GBC5.gridwidth=8;
	      GBC5.gridheight=2;
	      GBC5.insets.top=5;
	      GBC5.fill=GridBagConstraints.HORIZONTAL;
	      GBL5.setConstraints(scrollPane,GBC5);
    
	      GBC5 = new GridBagConstraints();
	      CR5.add(labelDescrizione);
	      GBC5.gridx=0;
	      GBC5.gridy=3;
	      GBC5.insets.top=10;
	      GBC5.insets.left=7;
	      GBC5.fill=GridBagConstraints.HORIZONTAL;
	      GBL5.setConstraints(labelDescrizione,GBC5);
	      
	      GBC5 = new GridBagConstraints();
	      CR5.add(textDescrizione);
	      GBC5.gridx=1;
	      GBC5.gridy=3;
	      GBC5.insets.top=10;
	      GBC5.gridwidth=4;
	      GBC5.insets.left=7;
	      GBC5.fill=GridBagConstraints.HORIZONTAL;
	      GBL5.setConstraints(textDescrizione,GBC5);
	      
	      
	      GBC5 = new GridBagConstraints();
	      CR5.add(buttonSalva);
	      GBC5.gridx=1;
	      GBC5.gridy=4;
	      GBC5.insets.top=10;
	      GBC5.insets.left=7;
	      GBC5.fill=GridBagConstraints.HORIZONTAL;
	      GBL5.setConstraints(buttonSalva,GBC5);
	      
	      GBC5 = new GridBagConstraints();
	      CR5.add(buttonModifica);
	      GBC5.gridx=2;
	      GBC5.gridy=4;
	      GBC5.insets.top=10;
	      GBC5.insets.left=7;
	      GBC5.fill=GridBagConstraints.HORIZONTAL;
	      GBL5.setConstraints(buttonModifica,GBC5);
	      
	      GBC5 = new GridBagConstraints();
	      CR5.add(buttonCancella);
	      GBC5.gridx=3;
	      GBC5.gridy=4;
	      GBC5.insets.top=10;
	      GBC5.insets.left=7;
	      GBC5.fill=GridBagConstraints.HORIZONTAL;
	      GBL5.setConstraints(buttonCancella,GBC5);
	      
     
	     

        add(radioPanel, BorderLayout.LINE_START);
        setBorder(BorderFactory.createEmptyBorder(20,20,20,20));
    }

   

   
    private void dimensionaTabella() {
		// TODO Auto-generated method stub
    	v = db.eseguiQuery("SELECT DESCRIZIONE FROM DESCRIZIONENOTE ORDER BY DESCRIZIONE");
        tableModel3 = new MyTableModel3(v);
        tableRicette = new JTable(tableModel3);
        tableRicette.setRowHeight(20);
        tableRicette.setFont(fontTable);
        tableRicette.addMouseListener(new MyMouseAdapter2());
        // tableOperazioni.setEditingColumn(1);
         scrollPane.setName("jScrollPane1");
         scrollPane.setViewportView(tableRicette);
       //  jScrollPane2.setPreferredSize(dTable2);
        
	}
    
    private void pulisci(){
    	textDescrizione.setText("");
    	buttonModifica.setEnabled(false);
        buttonCancella.setEnabled(false);
        buttonSalva.setEnabled(true);
        
    }




	public static void createAndShowGUI() {
        //Create and set up the window.
    	frame = new JDialog();
     	Dimensione d2 = new Dimensione();
     	d2.setSize(700, 500);
	        frame.setPreferredSize(d2);
			frame.pack();
	        frame.setVisible(true);
	        frame.setResizable(true);
	        CentraComponents centra = new CentraComponents();
	 	     Point coordinate = centra.centra(frame);
	 	      frame.setLocation(coordinate);
        JComponent newContentPane = new PanelNoteCredito();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.setContentPane(newContentPane);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }
    
    public void chiudi(){
    	frame.dispose();
    }

    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }


    public class MyTableModel3 extends AbstractTableModel {

		Vector v = null;
		// intestazioni delle colonne
		String[] ColName = { "Note Descrizione Credito Registrate" };

		public MyTableModel3(Vector v) {
			// System.out.println("vediamo se l'errore è qui sopra");
			this.v = v; // inizializzato con il vettore
			// System.out.println("vediamo se l'errore è qui sotto");
			// this.addMouseListener(new MyMouseAdapter());
		}

		/*
		 * public int getRowCount() { // System.out.println("Stampo"+v.size());
		 * return null==v?0:v.size();}
		 */
		public int getRowCount() {
			return v.size();
		}

		public String getColumnName(int col) {
			return ColName[col];

		}

		public int getColumnCount() {
			return ColName.length;
		}

		/*
		 * Don't need to implement this method unless your table's editable.
		 */
		public boolean isCellEditable(int row, int col) {
			// nessuna cella editabile
			return false;
		}

		public Object getValueAt(int row, int col) {
			// Object rowVal = v.get(row);
			// return((Object[])rowVal)[col];//[col];
			Object colonna = null;
			try {
				Vector riga = (Vector) v.elementAt(row);
				colonna = riga.elementAt(col);
				// System.out.println("stampo questo "+colonna);
				return colonna;
			} catch (ArrayIndexOutOfBoundsException e) {
				System.out.println("errore: " + e);
			}
			return colonna;

		}
	}
    
    
public class MyMouseAdapter2 extends MouseAdapter {
		
	    public void mouseClicked(MouseEvent me) {
	    	JTable t = (JTable)me.getSource();
	    	if (me.getClickCount() == 2) {
	    		int row = t.rowAtPoint(me.getPoint());
	            int column = t.columnAtPoint(me.getPoint());   
	            descrVecchia= tableRicette.getValueAt(row, 0).toString();
	            textDescrizione.setText(descrVecchia);
	            buttonModifica.setEnabled(true);
	            buttonCancella.setEnabled(true);
	            buttonSalva.setEnabled(false);
	    	}//fine if
	    	}
	    }//fine mouseadapter
	
	
}

l'unica cos che devi togliere il codice relativo al d in quanto sicuramente la tua clase risulta diversa dalla mia