🚀 go-pugleaf

James,

As per Johns suggestion here are examples of model and renderer for you to
use. There are 2/3 ,methods in the model in initialize the array - either
work, perhaps John wil give an opinion of which is better.
Also I tried the renderer with both a JLabel and JTextField - the foreground
color came out OK with both but the background color only worked with the
JTextField - not sure why.

Niall


/*-------------------------------Creating the
table---------------------------*/

    // Create Table
    model = new PcCellModel();
    jTable1 = new JTable(model);
    jTable1.setDefaultRenderer(Character.class, new PcCellRenderer());

    // Load Values
    model.setValueAt(new Character('a'), 0, 0);
    //   ..... etc, etc

    // Initialize
    model.initialize1();
    // or . . .
    model.initialize1(55, 25);
    // or . . .
    model.initialize2();



/*-------------------------------Model ---------------------------*/

import java.util.*;
import java.awt.*;
import javax.swing.table.*;

public class PcCellModel extends AbstractTableModel {

  private Character[][] characterMatrix;

  private static final int DEFAULTROW = 5;
  private static final int DEFAULTCOL = 25;
  protected int maxRow;
  protected int maxCol;

  public PcCellModel () {
    this(DEFAULTROW, DEFAULTCOL);
  }
  public PcCellModel (int row, int col) {
    maxRow = row;
    maxCol = col;
    characterMatrix = new Character[maxRow][maxCol];
  }
  public Object getValueAt(int row, int col) {
    return characterMatrix[row][col];
  }
  public Class getColumnClass(int col) {
    return Character.class;
  }
  public void setValueAt(Object obj, int row, int col) {

    if (obj == null)
      characterMatrix[row][col] = null;
    else
      characterMatrix[row][col] = (Character)obj;
  }
  public void initialize1(int row, int col) {
    maxRow = row;
    maxCol = col;
    characterMatrix = new Character[maxRow][maxCol];
    fireTableStructureChanged();
  }
  public void initialize1() {
    characterMatrix = new Character[maxRow][maxCol];
    fireTableDataChanged();
  }
  public void initialize2() {
    for (int i=0;i < maxRow;i++) {
      for (int j=0;j < maxCol;j++) {
        characterMatrix[i][j] = null;
      }
    }
    fireTableDataChanged();
  }
  public int getRowCount() {
    return maxRow;
  }
  public int getColumnCount() {
    return maxCol;
  }

  public boolean isCellEditable(int row, int col) {
    return false;
  }
}

/*-------------------------------Renderer---------------------------*/

import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
public class PcCellRenderer implements TableCellRenderer {

 private static JLabel blankLabel = new JLabel();
 private JLabel text = new JLabel();
// private JTextField text = new JTextField();

 public Component getTableCellRendererComponent(JTable table, Object obj,
    boolean isSelected, boolean hasFocus, int row, int column) {

    if (obj == null)
      return blankLabel;

    text.setText(((Character)obj).toString());

    if (row == 0 || row == 2 || row == 4) {
      text.setForeground(Color.red);
      text.setBackground(Color.white);
    } else {
      text.setForeground(Color.blue);
      text.setBackground(Color.yellow);
    }
    return text;
 }
}