add support for adding tracks to playlist after highlighted item

src/sel_items_adder.cpp

@@ -50,6 +50,7 @@ void SelectedItemsAdder::Init()
 	itsPositionSelector->AddOption("At the beginning of playlist");
 	itsPositionSelector->AddOption("After current track");
 	itsPositionSelector->AddOption("After current album");
+	itsPositionSelector->AddOption("After highlighted item");
 	itsPositionSelector->AddSeparator();
 	itsPositionSelector->AddOption("Cancel");
 	
@@ -230,6 +231,10 @@ void SelectedItemsAdder::EnterPressed()
 					break;
 			successful_operation = myPlaylist->Add(list, 0, i);
 		}
+		else if (pos == 4) // after highlighted item
+		{
+			successful_operation = myPlaylist->Add(list, 0, std::min(myPlaylist->Items->Choice()+1, myPlaylist->Items->Size()));
+		}
 		else
 		{
 			w = itsPlaylistSelector;

src/sel_items_adder.h

@@ -27,7 +27,7 @@
 class SelectedItemsAdder : public Screen< Menu<std::string> >
 {
 	public:
-		SelectedItemsAdder() : itsPSWidth(35), itsPSHeight(10) { }
+		SelectedItemsAdder() : itsPSWidth(35), itsPSHeight(11) { }
 		
 		virtual void SwitchTo();
 		virtual void Resize();