void SDetailsViewBase::SaveExpandedItems( TSharedRef<FPropertyNode> StartNode )
{
UStruct* BestBaseStruct = StartNode->FindComplexParent()->GetBaseStructure();
TArray<FString> ExpandedPropertyItems;
GetExpandedItems(StartNode, ExpandedPropertyItems);
// Handle spaces in expanded node names by wrapping them in quotes
for( FString& String : ExpandedPropertyItems )
{
String.InsertAt(0, '"');
String.AppendChar('"');
}
TArray<FString> ExpandedCustomItems = ExpandedDetailNodes.Array();
// Expanded custom items may have spaces but SetSingleLineArray doesnt support spaces (treats it as another element in the array)
// Append a '|' after each element instead
FString ExpandedCustomItemsString;
for (auto It = ExpandedDetailNodes.CreateConstIterator(); It; ++It)
{
ExpandedCustomItemsString += *It;
ExpandedCustomItemsString += TEXT(",");
}
//while a valid class, and we're either the same as the base class (for multiple actors being selected and base class is AActor) OR we're not down to AActor yet)
for (UStruct* Struct = BestBaseStruct; Struct && ((BestBaseStruct == Struct) || (Struct != AActor::StaticClass())); Struct = Struct->GetSuperStruct())
{
if (StartNode->GetNumChildNodes() > 0)
{
bool bShouldSave = ExpandedPropertyItems.Num() > 0;
if (!bShouldSave)
{
TArray<FString> DummyExpandedPropertyItems;
GConfig->GetSingleLineArray(TEXT("DetailPropertyExpansion"), *Struct->GetName(), DummyExpandedPropertyItems, GEditorPerProjectIni);
bShouldSave = DummyExpandedPropertyItems.Num() > 0;
}
if (bShouldSave)
{
GConfig->SetSingleLineArray(TEXT("DetailPropertyExpansion"), *Struct->GetName(), ExpandedPropertyItems, GEditorPerProjectIni);
}
}
}
if (DetailLayouts.Num() > 0 && BestBaseStruct)
{
bool bShouldSave = !ExpandedCustomItemsString.IsEmpty();
if (!bShouldSave)
{
FString DummyExpandedCustomItemsString;
GConfig->GetString(TEXT("DetailCustomWidgetExpansion"), *BestBaseStruct->GetName(), DummyExpandedCustomItemsString, GEditorPerProjectIni);
bShouldSave = !DummyExpandedCustomItemsString.IsEmpty();
}
if (bShouldSave)
{
GConfig->SetString(TEXT("DetailCustomWidgetExpansion"), *BestBaseStruct->GetName(), *ExpandedCustomItemsString, GEditorPerProjectIni);
}
}
}
/**
* Recursively gets expanded items for a node
*
* @param InPropertyNode The node to get expanded items from
* @param OutExpandedItems List of expanded items that were found
*/
void GetExpandedItems(TSharedPtr<FPropertyNode> InPropertyNode, TArray<FString>& OutExpandedItems)
{
if (InPropertyNode->HasNodeFlags(EPropertyNodeFlags::Expanded))
{
const bool bWithArrayIndex = true;
FString Path;
Path.Empty(128);
InPropertyNode->GetQualifiedName(Path, bWithArrayIndex);
OutExpandedItems.Add(Path);
}
for (int32 ChildIndex = 0; ChildIndex < InPropertyNode->GetNumChildNodes(); ++ChildIndex)
{
GetExpandedItems(InPropertyNode->GetChildNode(ChildIndex), OutExpandedItems);
}
}
