public PSEGantt(PSGanttModel model, Calendar start, Calendar end) {
super(model);
start_ = start;
end_ = end;
colorProvider_ = new DefaultColorProvider();
makeGantt();
refreshBtn_ = new JButton("Refresh");
setLayout(new BorderLayout());
// add(BorderLayout.NORTH,refreshBtn_);
add(BorderLayout.CENTER, gantt_);
add(new GanttToolBar(gantt_.getViewManager(GanttTable.TIME_AXIS)), BorderLayout.SOUTH);
}
