public override IEnumerable <DocNode> GetChoices(bool useFilter)
{
var nodePep = PepNode;
if (nodePep == null)
{
throw new InvalidOperationException(
Resources.TransitionGroupTreeNode_GetChoices_Invalid_attempt_to_get_choices_for_a_node_that_has_not_been_added_to_the_tree_yet);
}
var listChildrenNew = DocNode.GetPrecursorChoices(DocSettings, nodePep.ExplicitMods, useFilter);
// Existing transitions must be part of the first settings change to ensure proper
// handling of user set peak boundaries.
MergeChosen(listChildrenNew, useFilter, node => ((TransitionDocNode)node).Key(DocNode));
var nodeGroup = (TransitionGroupDocNode)DocNode.ChangeChildrenChecked(listChildrenNew);
var diff = new SrmSettingsDiff(DocSettings, true);
// Update results on the group to correctly handle user set peak boundaries
nodeGroup = nodeGroup.UpdateResults(DocSettings, diff, nodePep, DocNode);
// Make sure any properties that depend on peptide relationships,
// like ratios get updated.
nodePep = (PeptideDocNode)nodePep.ReplaceChild(nodeGroup);
diff = new SrmSettingsDiff(diff, SrmSettingsDiff.PROPS);
nodePep = nodePep.ChangeSettings(DocSettings, diff);
var id = nodeGroup.Id;
int iGroup = nodePep.Children.IndexOf(n => ReferenceEquals(n.Id, id));
if (iGroup != -1)
{
nodeGroup = (TransitionGroupDocNode)nodePep.Children[iGroup];
}
listChildrenNew = new List <DocNode>(nodeGroup.Children);
// Merge with existing transitions again to avoid changes based on the settings
// updates.
MergeChosen(listChildrenNew, useFilter, node => ((TransitionDocNode)node).Key(nodeGroup));
return(listChildrenNew);
}