Instead of loading Defaults.ini underneith Preferences.ini, change the

actual IPreference defaults according to Defaults.ini.  This way, we can
access default values immediately, without having to load and parse a
file.  Since this simply changes the value in the preference, this doesn't
use any more memory.

stepmania/src/Preference.cpp

@@ -51,6 +51,14 @@ void IPreference::SavePrefsToNode( XNode* pNode )
 		(*p)->WriteTo( pNode );
 }
 
+void IPreference::ReadAllDefaultsFromNode( const XNode* pNode )
+{
+	if( pNode == NULL )
+		return;
+	FOREACHS_CONST( IPreference*, *m_Subscribers.m_pSubscribers, p )
+		(*p)->ReadDefaultFrom( pNode );
+}
+
 void IPreference::PushValue( lua_State *L ) const
 {
 	if( LOG )
@@ -101,6 +109,15 @@ void IPreference::WriteTo( XNode* pNode ) const
 	pNode->AppendAttr( m_sName, ToString() );
 }
 
+/* Load our value from the node, and make it the new default. */
+void IPreference::ReadDefaultFrom( const XNode* pNode )
+{
+	CString sVal;
+	if( !pNode->GetAttrValue(m_sName, sVal) )
+		return;
+	SetDefaultFromString( sVal );
+}
+
 void BroadcastPreferenceChanged( const CString& sPreferenceName )
 {
 	if( MESSAGEMAN )