* Populates the Cool Bar
*/
protected void fillCoolBar( ICoolBarManager coolBar )
{
// add main tool bar
IToolBarManager toolbar = new ToolBarManager( SWT.FLAT | SWT.RIGHT );
toolbar.add( newDropDownAction );
toolbar.add( preferencesAction );
coolBar.add( new ToolBarContributionItem( toolbar, Application.PLUGIN_ID + ".toolbar" ) ); //$NON-NLS-1$
// add marker for additions
coolBar.add( new GroupMarker( IWorkbenchActionConstants.MB_ADDITIONS ) );
// add navigation tool bar
// some actions are added from org.eclipse.ui.editor to the HISTORY_GROUP
IToolBarManager navToolBar = new ToolBarManager( SWT.FLAT | SWT.RIGHT );
navToolBar.add( new Separator( IWorkbenchActionConstants.HISTORY_GROUP ) );
navToolBar.add( backwardHistoryAction );
navToolBar.add( forwardHistoryAction );
coolBar.add( new ToolBarContributionItem( navToolBar, IWorkbenchActionConstants.TOOLBAR_NAVIGATE ) );
}