Method mapToProxy

src/eepp/ui/models/sortingproxymodel.cpp:100–120

}

ModelIndex SortingProxyModel::mapToProxy( const ModelIndex& sourceIndex ) const {
	if ( !sourceIndex.isValid() )
		return {};

	eeASSERT( sourceIndex.model() == mSource.get() );

	auto sourceParent = sourceIndex.parent();
	auto it = const_cast<SortingProxyModel*>( this )->buildMapping( sourceParent );

	auto& mapping = *( it->second );

	if ( sourceIndex.row() >= static_cast<int>( mapping.proxyRows.size() ) ||
		 sourceIndex.column() >= (Int64)columnCount() )
		return {};

	int proxyRow = mapping.proxyRows[sourceIndex.row()];
	int proxyColumn = sourceIndex.column();
	if ( proxyRow < 0 || proxyColumn < 0 )
		return {};
	return createIndex( proxyRow, proxyColumn, &mapping );
}

ModelRole SortingProxyModel::sortRole() const {
	return mSortRole;