allow unloading steps from a specific profile

stepmania/src/Song.cpp

@@ -1359,7 +1359,7 @@ bool Song::Matches(CString sGroup, CString sSong) const
 	return false;
 }
 
-void Song::FreeAllLoadedFromProfiles()
+void Song::FreeAllLoadedFromProfile( ProfileSlot slot )
 {
 	/* RemoveSteps will remove and recreate autogen notes, which may reorder
 	 * m_vpSteps, so be careful not to skip over entries. */
@@ -1367,7 +1367,9 @@ void Song::FreeAllLoadedFromProfiles()
 	for( int s=m_vpSteps.size()-1; s>=0; s-- )
 	{
 		Steps* pSteps = m_vpSteps[s];
-		if( pSteps->WasLoadedFromProfile() )
+		if( !pSteps->WasLoadedFromProfile() )
+			continue;
+		if( slot == PROFILE_SLOT_INVALID || pSteps->GetLoadedFromProfileSlot() == slot )
 			apToRemove.push_back( pSteps );
 	}
 

stepmania/src/SongManager.cpp

@@ -1219,7 +1219,7 @@ void SongManager::FreeAllLoadedFromProfiles()
 	for( unsigned s=0; s<m_pSongs.size(); s++ )
 	{
 		Song* pSong = m_pSongs[s];
-		pSong->FreeAllLoadedFromProfiles();
+		pSong->FreeAllLoadedFromProfile();
 	}
 
 	// After freeing some Steps pointers, the cache will be invalid.

stepmania/src/song.h

@@ -215,7 +215,7 @@ public:
 	void AddSteps( Steps* pSteps );		// we are responsible for deleting the memory pointed to by pSteps!
 	void RemoveSteps( const Steps* pSteps );
 
-	void FreeAllLoadedFromProfiles();
+	void FreeAllLoadedFromProfile( ProfileSlot slot = PROFILE_SLOT_INVALID );
 	bool WasLoadedFromProfile() const { return m_LoadedFromProfile != PROFILE_SLOT_INVALID; }
 	int GetNumStepsLoadedFromProfile( ProfileSlot slot ) const;
 	bool IsEditAlreadyLoaded( Steps* pSteps ) const;