Following is a prepare Renderer method which I am writing after
subclassing the JTable class. But this doesn't work properly. When I select
the row only at that time it shows the proper color.
public Component prepareRenderer(TableCellRenderer renderer, int row,
int column) {
Component component =
super.prepareRenderer(renderer, row, column);
Long longTime =
(Long) logMessageTableModel.getValueAt(row, 4);
Object
value = logMessageTableModel.getValueAt(row, column);
if (null !=
longTime && ((System.currentTimeMillis() - longTime.longValue()) <=
highlightDuration))
{
component.setBackground(Color.cyan);
}
else
if (1 == column && null != value) {
String
strValue = value.toString();
if
(strValue.equalsIgnoreCase("FATAL"))
{
component.setBackground(Color.red);
} else
{
component.setBackground(null);
}
}
else
{
component.setBackground(null);
}
return component;
}
Following is the code where I have created my Table
Cell renderer. This works fine. In this I need to register the renderer for
all the colums.
JTable logMessageTable = new
JTable();
ColoredTableCellRenderer coloredTableCellRenderer =
new
ColoredTableCellRenderer();
logMessageTable.getColumn(VTBrokerClient.logMessageTableColumnNames[0]).setCellRenderer(coloredTableCellRenderer);
logMessageTable.getColumn(VTBrokerClient.logMessageTableColumnNames[1]).setCellRenderer(coloredTableCellRenderer);
logMessageTable.getColumn(VTBrokerClient.logMessageTableColumnNames[2]).setCellRenderer(coloredTableCellRenderer);
logMessageTable.getColumn(VTBrokerClient.logMessageTableColumnNames[3]).setCellRenderer(coloredTableCellRenderer);
class ColoredTableCellRenderer extends
DefaultTableCellRenderer {
public Component
getTableCellRendererComponent (JTable table, Object value, boolean selected,
boolean focused, int row, int column) {
Long longTime = (Long)
logMessageTableModel.getValueAt(row, 4);
if (null != longTime &&
((System.currentTimeMillis() - longTime.longValue()) <= highlightDuration))
{
setBackground(Color.cyan);
}
else
if (1 == column && null != value) {
String
strValue = value.toString();
if
(strValue.equalsIgnoreCase("FATAL"))
{
setBackground(Color.red);
} else
{
setBackground(null);
}
}
else
{
setBackground(null);
}
super.getTableCellRendererComponent(table,
value, selected, focused, row, column);
return
this;
}
}
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