Add basic help to controllerView

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1504 0778d3d1-df1d-0410-868b-ea421aaaa00d

src/gui/widgets/controller_view.cpp

@@ -84,6 +84,8 @@ controllerView::controllerView( controller * _model, QWidget * _parent ) :
 
 	m_subWindow->hide();
 
+	setWhatsThis( tr( "Controllers are able to automate the value of a knob, "
+				"slider, and other controls."  ) );
 
 	setModel( _model );
 }
@@ -203,6 +205,14 @@ void controllerView::contextMenuEvent( QContextMenuEvent * )
 
 
 
+void controllerView::displayHelp( void )
+{
+	QWhatsThis::showText( mapToGlobal( rect().center() ),
+								whatsThis() );
+}
+
+
+
 #include "moc_controller_view.cxx"
 
 #endif