UnrealEngineUWP/Engine/Source/Editor/PropertyEditor/Private/StructurePropertyNode.cpp

// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.


#include "StructurePropertyNode.h"
#include "ItemPropertyNode.h"
#include "PropertyEditorHelpers.h"

void FStructurePropertyNode::InitChildNodes()
{
	const bool bShouldShowHiddenProperties = !!HasNodeFlags(EPropertyNodeFlags::ShouldShowHiddenProperties);
	const bool bShouldShowDisableEditOnInstance = !!HasNodeFlags(EPropertyNodeFlags::ShouldShowDisableEditOnInstance);

	const UStruct* Struct = StructData.IsValid() ? StructData->GetStruct() : NULL;

	TArray<UProperty*> StructMembers;

	for (TFieldIterator<UProperty> It(Struct); It; ++It)
	{
		UProperty* StructMember = *It;

		if (StructMember)
		{
			static const FName Name_InlineEditConditionToggle("InlineEditConditionToggle");
			const bool bOnlyShowAsInlineEditCondition = StructMember->HasMetaData(Name_InlineEditConditionToggle);
			const bool bShowIfEditableProperty = StructMember->HasAnyPropertyFlags(CPF_Edit);
			const bool bShowIfDisableEditOnInstance = !StructMember->HasAnyPropertyFlags(CPF_DisableEditOnInstance) || bShouldShowDisableEditOnInstance;

			if (bShouldShowHiddenProperties || (bShowIfEditableProperty && !bOnlyShowAsInlineEditCondition && bShowIfDisableEditOnInstance))
			{
				StructMembers.Add(StructMember);
			}
		}
	}

	PropertyEditorHelpers::OrderPropertiesFromMetadata(StructMembers);

	for (UProperty* StructMember : StructMembers)
	{
		TSharedPtr<FItemPropertyNode> NewItemNode(new FItemPropertyNode);//;//CreatePropertyItem(StructMember,INDEX_NONE,this);

		FPropertyNodeInitParams InitParams;
		InitParams.ParentNode = SharedThis(this);
		InitParams.Property = StructMember;
		InitParams.ArrayOffset = 0;
		InitParams.ArrayIndex = INDEX_NONE;
		InitParams.bAllowChildren = true;
		InitParams.bForceHiddenPropertyVisibility = bShouldShowHiddenProperties;
		InitParams.bCreateDisableEditOnInstanceNodes = bShouldShowDisableEditOnInstance;
		InitParams.bCreateCategoryNodes = false;

		NewItemNode->InitNode(InitParams);
		AddChildNode(NewItemNode);
	}
}