jtable+tablemodel - cell foreground color change
Let me explain my problem first:
I have a JTable with a corresponding TableModel for the products that my computershop sells, wich looks something like this:
DESCR| AMOUNT_IN_STOCK | REORDER_LEVEL
mouse|20 |10
keyboard|9 |8
screen |3 |5
As you can see, the amount_in_stock for the screens is lower than its reorder_level.
What I want to do now is to put the cell amount_in_stock for screen to a foregroundcolor of RED.
I tried to to this with a Renderer, but I had a problem since I can get the amount_in_stock value but I don't know how I can get the corresponding reoder_level value.
Thanks in advance!
Under here I have past my code how I use my table and the code of my tableModel
...
ProductTableModel tableModel =new ProductTableModel(sc);
JTable table =new JTable(tableModel);
JScrollPane scrollPane =new JScrollPane(table);
....
publicclass ProductTableModelextends AbstractShopTableModelimplements Observer{
private List<Product> products;
private String[] columnNames ={"Description",
"Amount in stock",
"ReorderLevel",
"ReorderQuantity",
"Default selling price",
"VAT"};
private DecimalFormat decimalFormat =new DecimalFormat("0.0");// because of floating point problem
public ProductTableModel(ShopController controller){
products = controller.getAllProducts();
controller.registerAsProductObserver(this);
}
publicint getColumnCount()
{
return columnNames.length;
}
publicint getRowCount()
{
return products.size();
}
public String getColumnName(int col){
return columnNames[col].toString();
}
public Object getValueAt(int rowIndex,int columnIndex)
{
Product p = products.get(rowIndex);
switch( columnIndex )
{
case 0:return p.getDescription();
case 1:return p.getAmountInStock();
case 2:return p.getReorderLevel();
case 3:return p.getReorderQuantity();
case 4:return p.getSellingPrice();
case 5:return decimalFormat.format(p.getVatPercentage()*100)+"%";
default:returnnull;
}
}
public Class getColumnClass(int col){
return String.class;
}
public Object getObject(int index){
return getProduct(index);
}
public Product getProduct(int index){
return products.get(index);
}
/*Observer Pattern: what the ProductTableModel should do if it
recieves a notification that the list of products has changed.*/
publicvoid update(Observable o, Object arg){
fireTableDataChanged();/*makes the JTable update itself*/
}
};
