void SDetailsViewBase::UpdateSinglePropertyMapRecursive(FPropertyNode& InNode, FDetailLayoutData& LayoutData, FName CurCategory, FComplexPropertyNode* CurObjectNode, bool bEnableFavoriteSystem, bool bUpdateFavoriteSystemOnly)
{
FDetailLayoutBuilderImpl& DetailLayout = *LayoutData.DetailLayout;
UProperty* ParentProperty = InNode.GetProperty();
UStructProperty* ParentStructProp = Cast<UStructProperty>(ParentProperty);
for(int32 ChildIndex = 0; ChildIndex < InNode.GetNumChildNodes(); ++ChildIndex)
{
//Use the original value for each child
bool LocalUpdateFavoriteSystemOnly = bUpdateFavoriteSystemOnly;
TSharedPtr<FPropertyNode> ChildNodePtr = InNode.GetChildNode(ChildIndex);
FPropertyNode& ChildNode = *ChildNodePtr;
UProperty* Property = ChildNode.GetProperty();
{
FObjectPropertyNode* ObjNode = ChildNode.AsObjectNode();
FCategoryPropertyNode* CategoryNode = ChildNode.AsCategoryNode();
if(ObjNode)
{
// Currently object property nodes do not provide any useful information other than being a container for its children. We do not draw anything for them.
// When we encounter object property nodes, add their children instead of adding them to the tree.
UpdateSinglePropertyMapRecursive(ChildNode, LayoutData, CurCategory, ObjNode, bEnableFavoriteSystem, LocalUpdateFavoriteSystemOnly);
}
else if(CategoryNode)
{
if(!LocalUpdateFavoriteSystemOnly)
{
FName InstanceName = NAME_None;
FName CategoryName = CurCategory;
FString CategoryDelimiterString;
CategoryDelimiterString.AppendChar(FPropertyNodeConstants::CategoryDelimiterChar);
if(CurCategory != NAME_None && CategoryNode->GetCategoryName().ToString().Contains(CategoryDelimiterString))
{
// This property is child of another property so add it to the parent detail category
FDetailCategoryImpl& CategoryImpl = DetailLayout.DefaultCategory(CategoryName);
CategoryImpl.AddPropertyNode(ChildNodePtr.ToSharedRef(), InstanceName);
}
}
// For category nodes, we just set the current category and recurse through the children
UpdateSinglePropertyMapRecursive(ChildNode, LayoutData, CategoryNode->GetCategoryName(), CurObjectNode, bEnableFavoriteSystem, LocalUpdateFavoriteSystemOnly);
}
else
{
// Whether or not the property can be visible in the default detail layout
bool bVisibleByDefault = IsVisibleStandaloneProperty(ChildNode, InNode);
// Whether or not the property is a struct
UStructProperty* StructProperty = Cast<UStructProperty>(Property);
bool bIsStruct = StructProperty != NULL;
static FName ShowOnlyInners("ShowOnlyInnerProperties");
bool bIsChildOfCustomizedStruct = false;
bool bIsCustomizedStruct = false;
const UStruct* Struct = StructProperty ? StructProperty->Struct : NULL;
const UStruct* ParentStruct = ParentStructProp ? ParentStructProp->Struct : NULL;
if(Struct || ParentStruct)
{
FPropertyEditorModule& ParentPlugin = FModuleManager::GetModuleChecked<FPropertyEditorModule>("PropertyEditor");
if(Struct)
{
bIsCustomizedStruct = ParentPlugin.IsCustomizedStruct(Struct, SharedThis(this));
}
if(ParentStruct)
{
bIsChildOfCustomizedStruct = ParentPlugin.IsCustomizedStruct(ParentStruct, SharedThis(this));
}
}
// Whether or not to push out struct properties to their own categories or show them inside an expandable struct
bool bPushOutStructProps = bIsStruct && !bIsCustomizedStruct && !ParentStructProp && Property->HasMetaData(ShowOnlyInners);
// Is the property edit inline new
const bool bIsEditInlineNew = ChildNode.HasNodeFlags(EPropertyNodeFlags::ShowInnerObjectProperties) || SPropertyEditorEditInline::Supports(&ChildNode, ChildNode.GetArrayIndex());
// Is this a property of a container property
bool bIsChildOfContainer = PropertyEditorHelpers::IsChildOfArray(ChildNode) || PropertyEditorHelpers::IsChildOfSet(ChildNode) || PropertyEditorHelpers::IsChildOfMap(ChildNode);
// Edit inline new properties should be visible by default
bVisibleByDefault |= bIsEditInlineNew;
// Children of arrays are not visible directly,
bVisibleByDefault &= !bIsChildOfContainer;
FPropertyAndParent PropertyAndParent(*Property, ParentProperty);
const bool bIsUserVisible = IsPropertyVisible(PropertyAndParent);
// Inners of customized in structs should not be taken into consideration for customizing. They are not designed to be individually customized when their parent is already customized
if(!bIsChildOfCustomizedStruct && !LocalUpdateFavoriteSystemOnly)
{
// Add any object classes with properties so we can ask them for custom property layouts later
LayoutData.ClassesWithProperties.Add(Property->GetOwnerStruct());
}
// If there is no outer object then the class is the object root and there is only one instance
FName InstanceName = NAME_None;
if(CurObjectNode && CurObjectNode->GetParentNode())
{
InstanceName = CurObjectNode->GetParentNode()->GetProperty()->GetFName();
}
else if(ParentStructProp)
{
InstanceName = ParentStructProp->GetFName();
}
// Do not add children of customized in struct properties or arrays
if(!bIsChildOfCustomizedStruct && !bIsChildOfContainer && !LocalUpdateFavoriteSystemOnly)
{
// Get the class property map
FClassInstanceToPropertyMap& ClassInstanceMap = LayoutData.ClassToPropertyMap.FindOrAdd(Property->GetOwnerStruct()->GetFName());
FPropertyNodeMap& PropertyNodeMap = ClassInstanceMap.FindOrAdd(InstanceName);
if(!PropertyNodeMap.ParentProperty)
{
PropertyNodeMap.ParentProperty = CurObjectNode;
}
else
{
ensure(PropertyNodeMap.ParentProperty == CurObjectNode);
}
checkSlow(!PropertyNodeMap.Contains(Property->GetFName()));
PropertyNodeMap.Add(Property->GetFName(), ChildNodePtr);
}
bool bCanDisplayFavorite = false;
if(bVisibleByDefault && bIsUserVisible && !bPushOutStructProps)
{
FName CategoryName = CurCategory;
// For properties inside a struct, add them to their own category unless they just take the name of the parent struct.
// In that case push them to the parent category
FName PropertyCatagoryName = FObjectEditorUtils::GetCategoryFName(Property);
if(!ParentStructProp || (PropertyCatagoryName != ParentStructProp->Struct->GetFName()))
{
CategoryName = PropertyCatagoryName;
}
if(!LocalUpdateFavoriteSystemOnly)
{
if(IsPropertyReadOnly(PropertyAndParent))
{
ChildNode.SetNodeFlags(EPropertyNodeFlags::IsReadOnly, true);
}
// Add a property to the default category
FDetailCategoryImpl& CategoryImpl = DetailLayout.DefaultCategory(CategoryName);
CategoryImpl.AddPropertyNode(ChildNodePtr.ToSharedRef(), InstanceName);
}
bCanDisplayFavorite = true;
if(bEnableFavoriteSystem)
{
if(bIsCustomizedStruct)
{
bCanDisplayFavorite = false;
//CustomizedStruct child are not categorize since they are under an object but we have to put them in favorite category if the user want to favorite them
LocalUpdateFavoriteSystemOnly = true;
}
else if(ChildNodePtr->IsFavorite())
{
//Find or create the favorite category, we have to duplicate favorite property row under this category
FString CategoryFavoritesName = TEXT("Favorites");
FName CatFavName = *CategoryFavoritesName;
FDetailCategoryImpl& CategoryFavImpl = DetailLayout.DefaultCategory(CatFavName);
CategoryFavImpl.SetSortOrder(0);
CategoryFavImpl.SetCategoryAsSpecialFavorite();
//Add the property to the favorite
FObjectPropertyNode *RootObjectParent = ChildNodePtr->FindRootObjectItemParent();
FName RootInstanceName = NAME_None;
if(RootObjectParent != nullptr)
{
RootInstanceName = RootObjectParent->GetObjectBaseClass()->GetFName();
}
if(LocalUpdateFavoriteSystemOnly)
{
if(IsPropertyReadOnly(PropertyAndParent))
{
ChildNode.SetNodeFlags(EPropertyNodeFlags::IsReadOnly, true);
}
else
{
//If the parent has a condition that is not met, make the child as readonly
FDetailLayoutCustomization ParentTmpCustomization;
ParentTmpCustomization.PropertyRow = MakeShareable(new FDetailPropertyRow(InNode.AsShared(), CategoryFavImpl.AsShared()));
if(ParentTmpCustomization.PropertyRow->GetPropertyEditor()->IsPropertyEditingEnabled() == false)
{
ChildNode.SetNodeFlags(EPropertyNodeFlags::IsReadOnly, true);
}
}
}
//Duplicate the row
CategoryFavImpl.AddPropertyNode(ChildNodePtr.ToSharedRef(), RootInstanceName);
}
if(bIsStruct)
{
LocalUpdateFavoriteSystemOnly = true;
}
}
}
ChildNodePtr->SetCanDisplayFavorite(bCanDisplayFavorite);
bool bRecurseIntoChildren =
!bIsChildOfCustomizedStruct // Don't recurse into built in struct children, we already know what they are and how to display them
&& !bIsCustomizedStruct // Don't recurse into customized structs
&& !bIsChildOfContainer // Do not recurse into containers, the children are drawn by the container property parent
&& !bIsEditInlineNew // Edit inline new children are not supported for customization yet
&& bIsUserVisible // Properties must be allowed to be visible by a user if they are not then their children are not visible either
&& (!bIsStruct || bPushOutStructProps); // Only recurse into struct properties if they are going to be displayed as standalone properties in categories instead of inside an expandable area inside a category
if(bRecurseIntoChildren || LocalUpdateFavoriteSystemOnly)
{
// Built in struct properties or children of arras
UpdateSinglePropertyMapRecursive(ChildNode, LayoutData, CurCategory, CurObjectNode, bEnableFavoriteSystem, LocalUpdateFavoriteSystemOnly);
}
}
}
}
}
void SDetailsView::SetObjectArrayPrivate(const TArray< TWeakObjectPtr< UObject > >& InObjects)
{
double StartTime = FPlatformTime::Seconds();
PreSetObject(InObjects.Num());
// Selected actors for building SelectedActorInfo
TArray<AActor*> SelectedRawActors;
bViewingClassDefaultObject = InObjects.Num() > 0 ? true : false;
bool bOwnedByLockedLevel = false;
for( int32 ObjectIndex = 0 ; ObjectIndex < InObjects.Num(); ++ObjectIndex )
{
TWeakObjectPtr< UObject > Object = InObjects[ObjectIndex];
if( Object.IsValid() )
{
bViewingClassDefaultObject &= Object->HasAnyFlags( RF_ClassDefaultObject );
if(DetailsViewArgs.bAllowMultipleTopLevelObjects)
{
check(RootPropertyNodes.Num() == InObjects.Num());
RootPropertyNodes[ObjectIndex]->AsObjectNode()->AddObject( Object.Get() );
}
else
{
RootPropertyNodes[0]->AsObjectNode()->AddObject( Object.Get() );
}
SelectedObjects.Add( Object );
AActor* Actor = Cast<AActor>( Object.Get() );
if( Actor )
{
SelectedActors.Add( Actor );
SelectedRawActors.Add( Actor );
}
}
}
if( InObjects.Num() == 0 )
{
// Unlock the view automatically if we are viewing nothing
bIsLocked = false;
}
// Selection changed, refresh the detail area
if ( DetailsViewArgs.NameAreaSettings != FDetailsViewArgs::ActorsUseNameArea && DetailsViewArgs.NameAreaSettings != FDetailsViewArgs::ComponentsAndActorsUseNameArea )
{
NameArea->Refresh( SelectedObjects );
}
else
{
NameArea->Refresh( SelectedActors, SelectedObjects, DetailsViewArgs.NameAreaSettings );
}
// When selection changes rebuild information about the selection
SelectedActorInfo = AssetSelectionUtils::BuildSelectedActorInfo( SelectedRawActors );
// @todo Slate Property Window
//SetFlags(EPropertyWindowFlags::ReadOnly, bOwnedByLockedLevel);
PostSetObject();
// Set the title of the window based on the objects we are viewing
// Or call the delegate for handling when the title changed
FString Title;
if( GetNumObjects() == 0 )
{
Title = NSLOCTEXT("PropertyView", "NothingSelectedTitle", "Nothing selected").ToString();
}
else if( GetNumObjects() == 1 && RootPropertyNodes[0]->AsObjectNode()->GetNumObjects() > 0)
{
// if the object is the default metaobject for a UClass, use the UClass's name instead
UObject* Object = RootPropertyNodes[0]->AsObjectNode()->GetUObject(0);
FString ObjectName = Object->GetName();
if ( Object->GetClass()->GetDefaultObject() == Object )
{
ObjectName = Object->GetClass()->GetName();
}
else
{
// Is this an actor? If so, it might have a friendly name to display
const AActor* Actor = Cast<const AActor >( Object );
if( Actor != nullptr)
{
// Use the friendly label for this actor
ObjectName = Actor->GetActorLabel();
}
}
Title = ObjectName;
}
else if(DetailsViewArgs.bAllowMultipleTopLevelObjects)
{
Title = FString::Printf(*NSLOCTEXT("PropertyView", "MultipleToLevelObjectsSelected", "%i selected").ToString(), GetNumObjects());
}
else
{
FObjectPropertyNode* RootPropertyNode = RootPropertyNodes[0]->AsObjectNode();
Title = FString::Printf( *NSLOCTEXT("PropertyView", "MultipleSelected", "%s (%i selected)").ToString(), *RootPropertyNode->GetObjectBaseClass()->GetName(), RootPropertyNode->GetNumObjects() );
}
OnObjectArrayChanged.ExecuteIfBound(Title, InObjects);
double ElapsedTime = FPlatformTime::Seconds() - StartTime;
}