fix SM_BackFromPlayerOptions. (hmm: should be generalized ...)

stepmania/src/ScreenPlayerOptions.cpp

@@ -14,6 +14,9 @@
 #include "PlayerState.h"
 #include "Foreach.h"
 
+#define PREV_SCREEN				THEME->GetMetric ("ScreenPlayerOptions","PrevScreen")
+#define NEXT_SCREEN				THEME->GetMetric ("ScreenPlayerOptions","NextScreen")
+
 REGISTER_SCREEN_CLASS( ScreenPlayerOptions );
 ScreenPlayerOptions::ScreenPlayerOptions( CString sClassName ) :
 	ScreenOptionsMaster( sClassName )
@@ -155,6 +158,31 @@ void ScreenPlayerOptions::HandleScreenMessage( const ScreenMessage SM )
 	ScreenOptionsMaster::HandleScreenMessage( SM );
 }
 
+void ScreenPlayerOptions::GoToPrevScreen()
+{
+	if( SCREENMAN->IsStackedScreen(this) )
+	{
+		SCREENMAN->PopTopScreen( SM_BackFromPlayerOptions );
+	}
+	else
+	{
+		SCREENMAN->DeletePreparedScreens();
+		SCREENMAN->SetNewScreen( PREV_SCREEN );
+	}
+}
+
+void ScreenPlayerOptions::GoToNextScreen()
+{
+	if( SCREENMAN->IsStackedScreen(this) )
+	{
+		SCREENMAN->PopTopScreen( SM_BackFromPlayerOptions );
+	}
+	else
+	{
+		SCREENMAN->SetNewScreen( NEXT_SCREEN );
+	}
+}
+
 void ScreenPlayerOptions::UpdateDisqualified( int row, PlayerNumber pn )
 {
 	ASSERT( GAMESTATE->IsHumanPlayer(pn) );

stepmania/src/ScreenPlayerOptions.h

@@ -24,6 +24,9 @@ public:
 	virtual void PushSelf( lua_State *L );
 
 private:
+	void GoToNextScreen();
+	void GoToPrevScreen();
+
 	vector<bool>	m_bRowCausesDisqualified[NUM_PLAYERS];
 	void UpdateDisqualified( int row, PlayerNumber pn );