Changing the state of a GXCheckBox with a single click when the control does not have focus?

....beginning of activateCurrentCell()....
    // initialize the control.
    if (isBaseStyleUsed()) style.loadBaseStyle();
    if (bEnableControl) control.onSetGXStyle(style, true);

    Rectangle r = calcRectFromRowCol(cell.row, cell.col);
    try {
        if (control instanceof Component) {
            if (((Component)control).getParent()!=this&&!bReadOnlyCell) add((Component)control);
        onSetControlBounds(((Component)control), cell.row, cell.col, r);
         }

    if (control instanceof GXExControl) {
       ((GXExControl)control).doGetFocus(bEnableControl);
    } else {
       if (control instanceof Component) {
          if (bEnableControl&&!bReadOnlyCell) {
             ((Component)control).setVisible(true);
             ((Component)control).setEnabled(true);
          } else {
             ((Component)control).setVisible(false);
             ((Component)control).setEnabled(false);
          }
    }
                
    // added for checkbox
    if (control instanceof GXCheckBox)
    {
	if (((GXCheckBox)control).getState() == true) 
	   ((GXCheckBox)control).setState(false);  //true
	else 
	   ((GXCheckBox)control).setState(true);   //false;
			   
	((GXCheckBox)control).repaint();
    }
    // end of checkbox
  } } catch (Exception ex) {} ... rest of method....