Default implementation is provided by ‘
DefaultToolTip’ class from Jface, so we can override getText() method to provide tool tip information based on the specific criteria.
Example below:
import java.util.Properties;
import org.eclipse.jface.window.DefaultToolTip;
import org.eclipse.jface.window.ToolTip;
import org.eclipse.nebula.widgets.nattable.NatTable;
import org.eclipse.nebula.widgets.nattable.layer.cell.ILayerCell;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
public class MyXToolTip extends DefaultToolTip {
private NatTable natTable;
private XSpanningDataProvider bodyDataProvider;
public MyXToolTip (NatTable natTable, XSpanningDataProvider bodyDataProvider) {
super(natTable, ToolTip.NO_RECREATE, false);
this.natTable = natTable;
this.bodyDataProvider = bodyDataProvider;
}
protected Object getToolTipArea(Event event) {
int col = natTable.getColumnPositionByX(event.x);
int row = natTable.getRowPositionByY(event.y);
//if any specific implementation here ex: You want to display tooltip information only on first column. if(col != 0) return;
return new Point(col, row);
}
protected String getText(Event event) {
int col = natTable.getColumnPositionByX(event.x);
int row = natTable.getRowPositionByY(event.y);
ILayerCell cell = natTable.getCellByPosition(col, row);
INode rowObject = bodyDataProvider.getRowObject(cell.getRowIndex()); //my INode Object which has specific cell information
String channelName = rowObject.getName();
//If any specific implementation here, ex: mixing column and row information
return channelName;
}
protected Composite createToolTipContentArea(Event event, Composite parent) {
// This is where you could get really creative with your tooltips...
return super.createToolTipContentArea(event, parent);
}
}
