Re: Java Exception from inside

// Any idea what casses the Exception to boil up ?

import java.awt.*;
import java.util.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;

public class SimpleTable extends JTable
{
    private int columnLength=0; //number of rows
    private int columns=0;
    private MyTableModel myTableModel=new MyTableModel();

    public SimpleTable()
    {
        super();
        this.setModel(myTableModel);
        this.getTableHeader().setReorderingAllowed(false);
        this.getTableHeader().setResizingAllowed(false);
    }

    public void addColumn(String headerText)
    {
        LineBorder lineBorder= new LineBorder(Color.BLACK,4,false);
        addColumn(new CellContent
(null,null,null,JLabel.CENTER,lineBorder,headerText));
    }

    public void addColumn(Color bgcolor,Color color,Font font,int
align,LineBorder lineBorder,String value )
    {
        addColumn(new CellContent
(bgcolor,color,font,align,lineBorder,value));
    }

    public void addColumn(CellContent content)
    {
        columns++;
        TableColumn column = new TableColumn();
        this.getColumnModel().addColumn(column);
        MyTableRenderer myHeadRenderer=new MyTableRenderer(content);
        column.setHeaderRenderer(myHeadRenderer);
    }

    public void addRow()
    {
        //Vector<String> stringVector = new Vector<String>();
        Vector<CellContent> rowData = new Vector<CellContent>() ;
        rowData.add (new CellContent()) ;
        rowData.add (new CellContent()) ;
        rowData.add (new CellContent()) ;
        myTableModel.addRow(rowData) ;

// getModel().addRow(new Object[]{"v1", "v2", "v3"});

// addRows(1);
    }

    public void addRows(int number_of_rows)
    {
        for (int i=0;i<number_of_rows;i++)
        {
            columnLength++;
            CellContent[] content=new CellContent[columns];
            for (int column=0;column<columns;column++) content[column]=new
CellContent(); // default empty strings

            myTableModel.addRow(content);
        }
    }

    // Innerclass
    private class MyTableModel extends DefaultTableModel
    {
        public MyTableModel()
        {
            super();
        }

        // when isCellEditable(int row,int column) returns false
        // then the cell is not editable
        // change code below if you want otherwise.
        public boolean isCellEditable(int row,int column)
        {
            return false;
        }
    }

    // Innerclass
    // The renderer processes information for layout
    // In here it is made an innerclass and hidden to outside to make
SimpleTable
    // more easier to understand as JTable
    private class MyTableRenderer extends JLabel implements
TableCellRenderer
    {
        public MyTableRenderer()
     {
     super();
     setOpaque(true); // background must show
    }

    public MyTableRenderer(CellContent content)
    {
     super();
     setOpaque(true); // background must show
     this.setBackground(content.getBackground());
     this.setForeground(content.getForeground());
     this.setFont(content.getFont());
     this.setHorizontalAlignment(content.getHorizontalAlignment());
     if (content.getLineBorder()!=null) this.setBorder
(content.getLineBorder());
     this.setText(content.getValue());
    }

     public Component getTableCellRendererComponent( JTable table,
     Object cellContent,
                             boolean isSelected,
                             boolean hasFocus,
                             int row,
                             int
column)
     {
     if (cellContent==null) return this;
     CellContent content=(CellContent)cellContent; // We only cast
one time to speed up.
     this.setBackground(content.getBackground());
     this.setForeground(content.getForeground());
     this.setFont(content.getFont());
     this.setHorizontalAlignment(content.getHorizontalAlignment());
     if (content.getLineBorder()!=null) { this.setBorder
(content.getLineBorder()); }
     this.setText(content.getValue());
     return this;
     }
    }

    // innerclass CellContent
    // holds all information concering the cell
    // such as colors fonts alginment.
    // and a boolean that determines if the cell should be editable
    // Also a value (reprecented as String)
    // (It is parsed by myTableRendere)
    private class CellContent
    {
        private Color bgcolor=Color.WHITE; // background color
        private Color color =Color.BLACK; // foreground color
        private Font font =new Font(Font.MONOSPACED,Font.PLAIN,12);
        private int alignment=JLabel.LEFT; // default alignment is left
        private LineBorder lineBorder=null;
        private String value ="";

        public CellContent() {}
        public CellContent(Color bgcolor,Color color,Font font,int
alignment,LineBorder lineBorder,String value )
        {
            if (bgcolor!=null) { this.bgcolor=bgcolor; }
            if (color!=null) { this.color=color; }
            if (font!=null) { this.font=font;}
            this.alignment=alignment;
            if (lineBorder!=null) {this.lineBorder=lineBorder;}
            if (value!=null) { this.value=value;}
        }

        public Color getBackground() { return bgcolor; }
        public Color getForeground() { return color; }
        public Font getFont() { return font; }
        public int getHorizontalAlignment() { return alignment; }
        public LineBorder getLineBorder() { return lineBorder; }
        public String getValue() { return value; }
        public void setBackground(Color bgcolor) { this.bgcolor=bgcolor; }
        public void setForeground(Color color) { this.color=color; }
        public void setFont(Font font) { this.font=font; }
        public void setHorizontalAlignment(int alignment)
{ this.alignment=alignment; }
        public void setLineBorder(LineBorder lineBorder)
{ this.lineBorder=lineBorder;}
        public void setValue(String value) { this.value=value; }
    }

    public static void main(String[] args)
    {

     SimpleTable simpleTable=new SimpleTable();
     simpleTable.addColumn("Column 1");
     LineBorder lineBorder= new LineBorder(Color.GREEN,2,true); //
rounded
     simpleTable.addColumn(Color.YELLOW,Color.GREEN,new Font
(Font.SERIF,Font.BOLD,16),JLabel.LEFT,lineBorder,"Column 2");
     simpleTable.addColumn("Column 3");

     simpleTable.addRow();
// simpleTable.addRows(5);

// simpleTable.setColumnAlign(0);

     JFrame frame=new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLayout(new BorderLayout());
     JScrollPane jscrollPane=new JScrollPane(simpleTable);
        frame.getContentPane().add(jscrollPane,BorderLayout.CENTER);
        frame.pack();
        frame.setExtendedState(frame.getExtendedState()|
JFrame.MAXIMIZED_BOTH);
        frame.setVisible(true);

     // TODO, add your application code
     System.out.println("Hello World!");

    }
}