void SGraphEditorImpl::SelectAllNodes()
{
FGraphPanelSelectionSet NewSet;
for (int32 NodeIndex = 0; NodeIndex < EdGraphObj->Nodes.Num(); ++NodeIndex)
{
UEdGraphNode* Node = EdGraphObj->Nodes[NodeIndex];
ensureMsg(Node->IsValidLowLevel(), TEXT("Node is invalid"));
NewSet.Add(Node);
}
GraphPanel->SelectionManager.SetSelectionSet(NewSet);
}
bool FSoundCueEditor::CanDeleteNodes() const
{
const FGraphPanelSelectionSet SelectedNodes = GetSelectedNodes();
if (SelectedNodes.Num() == 1)
{
for (FGraphPanelSelectionSet::TConstIterator NodeIt(SelectedNodes); NodeIt; ++NodeIt)
{
if (Cast<USoundCueGraphNode_Root>(*NodeIt))
{
// Return false if only root node is selected, as it can't be deleted
return false;
}
}
}
return SelectedNodes.Num() > 0;
}
void FSoundCueEditor::DeleteSelectedDuplicatableNodes()
{
// Cache off the old selection
const FGraphPanelSelectionSet OldSelectedNodes = GetSelectedNodes();
// Clear the selection and only select the nodes that can be duplicated
FGraphPanelSelectionSet RemainingNodes;
SoundCueGraphEditor->ClearSelectionSet();
for (FGraphPanelSelectionSet::TConstIterator SelectedIter(OldSelectedNodes); SelectedIter; ++SelectedIter)
{
UEdGraphNode* Node = Cast<UEdGraphNode>(*SelectedIter);
if ((Node != NULL) && Node->CanDuplicateNode())
{
SoundCueGraphEditor->SetNodeSelection(Node, true);
}
else
{
RemainingNodes.Add(Node);
}
}
// Delete the duplicatable nodes
DeleteSelectedNodes();
// Reselect whatever's left from the original selection after the deletion
SoundCueGraphEditor->ClearSelectionSet();
for (FGraphPanelSelectionSet::TConstIterator SelectedIter(RemainingNodes); SelectedIter; ++SelectedIter)
{
if (UEdGraphNode* Node = Cast<UEdGraphNode>(*SelectedIter))
{
SoundCueGraphEditor->SetNodeSelection(Node, true);
}
}
}