public void UnExecute()
{
StageView stage = MainForm.CurrentStage;
Library lib = MainForm.CurrentLibrary;
LibraryView libView = MainForm.CurrentLibraryView;
for (int i = removedTreeNodes.Length - 1; i >= 0; i--)
{
LibraryTreeNode liv = removedTreeNodes[i];
lib.AddLibraryItem(liv.item);
libView.InsertNode(liv, removedPaths[i], removedIndexes[i]);
}
// todo: need to readd bonds and snaps.
for (int i = removedInstances.Length - 1; i >= 0; i--)
{
stage.AddInstance(removedInstances[i]);
}
libView.SelectNode(selectedNode);
removedInstances = null;
removedTreeNodes = null;
removedPaths = null;
removedIndexes = null;
selectedNode = null;
stage.InvalidateAll();
libView.RefreshCurrentNode();
}