JTable in JTable

From:
Daniel Moyne <daniel.moyne@free.fr>
Newsgroups:
comp.lang.java.gui
Date:
Thu, 13 Jun 2013 17:12:36 +0200
Message-ID:
<51b9e165$0$2408$426a74cc@news.free.fr>
I am trying to set a JTable of 3 colums with some JTables in columns 1 and
2. I have gone quite far but I am now facing a bug when adding a line with a
selection active in the the column where I have JTables embedded.

The structure of my JTable :
- Column 0 is standard, with Strings.
- Columns 1 and 2 contain JTables.

How I proceed for cells of column 1 and 2:
- in those cells I put a JPane containing the header and the table as it is
the only possibility to display the header when not using a JScrollPane (my
choice).
- I customize Cell and Renderer to properly display my Header and Table.
- I do a few tricks to mimick the normal behaviour when selecting cells of
column 0 or cells of cell Jtables as here the system does not help.
- I select the DefaultTableModel (here) but I have also used the
AbstactModel with no more success.

I am now facing a bug when adding a row here at position position 0 (other
position would result in the same problem).

Everything works fine in the following conditions:
- no selection of cells before addition of row,
- selection of any cells of column 0: after addition of row at position 0
the selection remains where expected (1 row down).

But if I select a cell of any JTable cells I have a bug in display that I
cannot fix because I do not understand what is going on.

Code is attached. Any idea would be appreciated.
Code--------------------
import java.awt.Component;
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import java.awt.BorderLayout;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.AbstractCellEditor;
import javax.swing.ListSelectionModel;
import javax.swing.table.TableCellEditor;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.border.MatteBorder;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableModel;
import java.awt.Color;
import javax.swing.ImageIcon;
import javax.swing.AbstractButton;
import javax.swing.JButton;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import javax.swing.UIManager;
import javax.swing.border.Border;

public class JTableInJTableDemo_object {
        private static JTable myMainJTable;
        private static DefaultTableModel myClassTableModel;
        private Object[][] data;
        private static int lineNumber ;
        private static final String[] columnNames =
{"NormalColumn","JTableColumn"};
        private static final String[] cellJTableNameColumn = {"Nom",
"Occurence"};
        private static final Border
defaultBorder=UIManager.getBorder(new JTable());

        public static void main(String args[]) {

                SwingUtilities.invokeLater(new Runnable() {
                        public void run() {
                                createAndShowGUI();
                        }
                });
        }

        private static void createAndShowGUI() {
                JFrame frame = new JFrame("JTableInJTableDemo");
                
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                Object[][]data = new Object[lineNumber]
[columnNames.length];
                buildCellJTable(lineNumber,data);
                JTable myMainJTable = new JTable();
                myMainJTable.setRowHeight(50);
                myClassTableModel=new DefaultTableModel(data,
columnNames);
                myMainJTable.setCellSelectionEnabled(false);
                myMainJTable.setModel(myClassTableModel);
                myMainJTable.setColumnSelectionAllowed(true);
                myMainJTable.setRowSelectionAllowed(true);
                
myMainJTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                TableColumn columnJTable =
myMainJTable.getColumnModel().getColumn(1);
                columnJTable.setCellRenderer(new
MyMainJTableCellRenderer());
                columnJTable.setCellEditor(new
MyMainJTableCellEditor());

                JScrollPane scrollPane = new
JScrollPane(myMainJTable);
                frame.add(scrollPane);
                frame.pack();
                frame.setVisible(true);
                //Create and set up the button window.
                JFrame _frame = new JFrame("Jtable Action");
                
_frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                //Create and set up the content pane.
                ButtonDemo newContentPane = new ButtonDemo();
                newContentPane.setOpaque(true);
                _frame.setContentPane(newContentPane);
                //Display the action window.
                _frame.pack();
                _frame.setVisible(true);
        }

        private static void buildCellJTable(int number,Object[][] data)
{
                int cellJTableLinNumber=2;
                for (int i=0;i<number;i++){
                        Object[] tableLine = new
Object[columnNames.length];
                        
tableLine[0]="line"+String.valueOf(i);
                        Object[][]
cellJTableNameColumnData=new Object[cellJTableLinNumber]
[cellJTableNameColumn.length];
                        Object[]cellJTableNameLine=new
Object[cellJTableLinNumber];
                        for (int j=0;j<
cellJTableLinNumber;j++){
                                for (int k=0; k<
cellJTableNameColumn.length;k++){
                                        
cellJTableNameLine[j]=i+j+k;
                                }
                                
cellJTableNameColumnData[j]=cellJTableNameLine;
                        }
                        JTable cellJTable = new JTable();
                        
cellJTable.setCellSelectionEnabled(false);
                        DefaultTableModel
myClassTableModel=new DefaultTableModel(cellJTableNameColumnData,
cellJTableNameColumn);
                        
cellJTable.setModel(myClassTableModel);
                        for (int l=0;
l<cellJTableNameColumn.length;l++){
                                
cellJTable.setDefaultRenderer(cellJTable.getColumnClass(l), new
MyCellJTableCellRenderer());
                        }
                        
cellJTable.setColumnSelectionAllowed(true);
                        
cellJTable.setRowSelectionAllowed(true);
                        
cellJTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                        JPanel cellJPanel=new JPanel();
                        cellJPanel.setLayout(new
BorderLayout());
                        
cellJPanel.add(cellJTable.getTableHeader(),BorderLayout.NORTH);
                        
cellJPanel.add(cellJTable,BorderLayout.CENTER);
                        tableLine[1]=cellJPanel;
                        data[i]=tableLine;
                }
        }

        static class MyMainJTableCellRenderer extends JTable implements
TableCellRenderer {

                public Component
getTableCellRendererComponent(JTable table,Object value, boolean isSelected,
boolean hasFocus, int rowIndex, int columnIndex) {
                        JPanel cellJPanel = (JPanel) value;
                        // we adjust row height
                        table.setRowHeight(rowIndex, (int)
cellJPanel.getPreferredSize().getHeight());
                        return cellJPanel;
                }
        }

        static class MyMainJTableCellEditor extends AbstractCellEditor
implements TableCellEditor {
                private JPanel myCellJPanel;

                @Override
                public Object getCellEditorValue() {
                        //necessary to clear selection of
cell in jtable cell otherwise will stay
                        ((JTable)
myCellJPanel.getComponent(1)).clearSelection();
                        //some people say that you can return
null in a pseudo editor but it is WRONG
                        return myCellJPanel;
                }

                public Component
getTableCellEditorComponent(JTable table, Object value, boolean isSelected,
int rowIndex, int columnIndex) {
                        myCellJPanel = (JPanel) value;
                        return myCellJPanel;
                }
        }

        static class MyCellJTableCellRenderer extends
DefaultTableCellRenderer {
                private final Color matteBorderColor=null;
                @Override
                public Component
getTableCellRendererComponent(JTable table, Object value, boolean
isSelected, boolean hasFocus,int rowIndex,int columnIndex) {
                        Component c =
super.getTableCellRendererComponent(table, value, isSelected, hasFocus,
rowIndex, columnIndex);
                        if (!isSelected) {
                                //necessary to remove
focus from unselected cell jtable
                                
setBorder(defaultBorder);
                        }
                        return c;
                }
        }

        /*
        * ButtonDemo.java requires the following files:
        */
        public static class ButtonDemo extends JPanel implements
ActionListener {
                protected JButton b1;
 
                public ButtonDemo() {
                        ImageIcon leftButtonIcon = null;
                        b1 = new JButton("Insert a row",
leftButtonIcon);
                        
b1.setVerticalTextPosition(AbstractButton.CENTER);
                        
b1.setHorizontalTextPosition(AbstractButton.LEADING);
                        b1.setMnemonic(KeyEvent.VK_D);
                        b1.setActionCommand("insert");
                        //Listen for action on button.
                        b1.addActionListener(this);
                        b1.setToolTipText("Click this button
to insert a row");
                        add(b1);
                }
 
                public void actionPerformed(ActionEvent e) {
                        if
("insert".equals(e.getActionCommand())) {
                                insertARow();
                        }
                }
        }

        private static void insertARow() {
                // (1) data creation
                //we have only 3 lines
                int cellJTableLinNumber=3;
                Object[] tableLine = new
Object[columnNames.length];
                tableLine[0]="new_line";
                Object[][] cellJTableNameColumnData = new
Object[cellJTableLinNumber][columnNames.length];
                Object[]cellJTableNameLine=new
Object[cellJTableLinNumber];
                for (int j=0;j< cellJTableLinNumber;j++){
                        for (int k=0; k<
cellJTableNameColumn.length;k++){
                                
cellJTableNameLine[j] +j+k;
                        }
                        
cellJTableNameColumnData[j]=cellJTableNameLine;
                }
                JTable cellJTable = new JTable();
                cellJTable.setCellSelectionEnabled(false);
                DefaultTableModel myNewClassTableModel=new
DefaultTableModel(cellJTableNameColumnData, cellJTableNameColumn);
                cellJTable.setModel(myNewClassTableModel);
                for (int l=0; l<cellJTableNameColumn.length;l++){
                        
cellJTable.setDefaultRenderer(cellJTable.getColumnClass(l), new
MyCellJTableCellRenderer());
                }
                cellJTable.setColumnSelectionAllowed(true);
                cellJTable.setRowSelectionAllowed(true);
                
cellJTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                JPanel cellJPanel=new JPanel();
                cellJPanel.setLayout(new BorderLayout());
                
cellJPanel.add(cellJTable.getTableHeader(),BorderLayout.NORTH);
                cellJPanel.add(cellJTable,BorderLayout.CENTER);
                tableLine[1]=cellJPanel;
                //(2) row insertion
                int insertRowIndex=0;
                
myClassTableModel.insertRow(insertRowIndex,tableLine);
        }
}
Code--------------------

--
Daniel Moyne (Nulix) Linux \\|||// Machine : x86_64
Distribution : Kubuntu 13.04 Raring / --- \ Ringtail ATI Radeon 4850
kernel : 3.8.0-13-generic-23 (' o-o ') KDE 4.10.1
----------------------------------oOO-(_)-OOo-------------------------------

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