void FFoliageTypeObjectCustomization::CustomizeHeader(TSharedRef<IPropertyHandle> PropertyHandle, FDetailWidgetRow& HeaderRow, IPropertyTypeCustomizationUtils& CustomizationUtils)
{
TSharedPtr<IPropertyHandle> FoliageTypeHandle = PropertyHandle->GetChildHandle("FoliageTypeObject");
// Only allow foliage type assets to be created (i.e. don't show all the factories for blueprints)
TArray<const UClass*> SupportedClasses;
SupportedClasses.Add(UFoliageType_InstancedStaticMesh::StaticClass());
HeaderRow
.NameContent()
[
FoliageTypeHandle->CreatePropertyNameWidget()
]
.ValueContent()
.MinDesiredWidth(250.f)
.MaxDesiredWidth(0.f)
[
SNew(SObjectPropertyEntryBox)
.PropertyHandle(FoliageTypeHandle)
.ThumbnailPool(CustomizationUtils.GetThumbnailPool())
.NewAssetFactories(PropertyCustomizationHelpers::GetNewAssetFactoriesForClasses(SupportedClasses))
.OnShouldFilterAsset(this, &FFoliageTypeObjectCustomization::OnShouldFilterAsset)
];
//PropertyCustomizationHelpers::MakeInsertDeleteDuplicateButton <-- not sure how to get that to show up properly, since the struct doesn't know it's an array
}
void FPrimaryAssetIdCustomization::CustomizeHeader(TSharedRef<class IPropertyHandle> InStructPropertyHandle, class FDetailWidgetRow& HeaderRow, IPropertyTypeCustomizationUtils& StructCustomizationUtils)
{
if (!UAssetManager::IsValid())
{
HeaderRow
.NameContent()
[
InStructPropertyHandle->CreatePropertyNameWidget()
]
.ValueContent()
.MinDesiredWidth(250.0f)
.MaxDesiredWidth(0.0f)
[
SNew(STextBlock)
.Text(LOCTEXT("NoAssetManager", "Enable Asset Manager to edit Primary Asset Ids"))
];
return;
}
StructPropertyHandle = InStructPropertyHandle;
const FString& TypeFilterString = StructPropertyHandle->GetMetaData("AllowedTypes");
if( !TypeFilterString.IsEmpty() )
{
TArray<FString> CustomTypeFilterNames;
TypeFilterString.ParseIntoArray(CustomTypeFilterNames, TEXT(","), true);
for(auto It = CustomTypeFilterNames.CreateConstIterator(); It; ++It)
{
const FString& TypeName = *It;
AllowedTypes.Add(*TypeName);
}
}
FOnShouldFilterAsset AssetFilter = FOnShouldFilterAsset::CreateStatic(&IAssetManagerEditorModule::OnShouldFilterPrimaryAsset, AllowedTypes);
// Can the field be cleared
const bool bAllowClear = !(StructPropertyHandle->GetMetaDataProperty()->PropertyFlags & CPF_NoClear);
HeaderRow
.NameContent()
[
InStructPropertyHandle->CreatePropertyNameWidget()
]
.ValueContent()
.MinDesiredWidth(250.0f)
.MaxDesiredWidth(0.0f)
[
// Add an object entry box. Even though this isn't an object entry, we will simulate one
SNew( SObjectPropertyEntryBox )
.ObjectPath(this, &FPrimaryAssetIdCustomization::OnGetObjectPath)
.PropertyHandle(InStructPropertyHandle)
.ThumbnailPool(StructCustomizationUtils.GetThumbnailPool())
.OnShouldFilterAsset(AssetFilter)
.OnObjectChanged(this, &FPrimaryAssetIdCustomization::OnSetObject)
.AllowClear(bAllowClear)
];
}
void FStringAssetReferenceCustomization::CustomizeHeader( TSharedRef<IPropertyHandle> InStructPropertyHandle, FDetailWidgetRow& HeaderRow, IPropertyTypeCustomizationUtils& StructCustomizationUtils )
{
StructPropertyHandle = InStructPropertyHandle;
FString ClassFilterString = StructPropertyHandle->GetMetaData("AllowedClasses");
if( !ClassFilterString.IsEmpty() )
{
TArray<FString> CustomClassFilterNames;
ClassFilterString.ParseIntoArray(&CustomClassFilterNames, TEXT(","), true);
for(auto It = CustomClassFilterNames.CreateConstIterator(); It; ++It)
{
const FString& ClassName = *It;
UClass* Class = FindObject<UClass>(ANY_PACKAGE, *ClassName);
if(!Class)
{
Class = LoadObject<UClass>(nullptr, *ClassName);
}
if(Class)
{
CustomClassFilters.Add(Class);
}
}
}
bExactClass = StructPropertyHandle->GetBoolMetaData("ExactClass");
FOnShouldFilterAsset AssetFilter;
UClass* ClassFilter = UObject::StaticClass();
if(CustomClassFilters.Num() == 1 && !bExactClass)
{
// If we only have one class to filter on, set it as the class type filter rather than use a filter callback
// We can only do this if we don't need an exact match, as the class filter also allows derived types
// The class filter is much faster than the callback as we're not performing two different sets of type tests
// (one against UObject, one against the actual type)
ClassFilter = CustomClassFilters[0];
}
else if(CustomClassFilters.Num() > 0)
{
// Only bind the filter if we have classes that need filtering
AssetFilter.BindSP(this, &FStringAssetReferenceCustomization::OnShouldFilterAsset);
}
// Can the field be cleared
const bool bAllowClear = !(StructPropertyHandle->GetMetaDataProperty()->PropertyFlags & CPF_NoClear);
HeaderRow
.NameContent()
[
InStructPropertyHandle->CreatePropertyNameWidget()
]
.ValueContent()
.MinDesiredWidth(250.0f)
.MaxDesiredWidth(0.0f)
[
// Add an object entry box. Even though this isn't an object entry, we will simulate one
SNew( SObjectPropertyEntryBox )
.PropertyHandle( InStructPropertyHandle )
.ThumbnailPool( StructCustomizationUtils.GetThumbnailPool() )
.AllowedClass( ClassFilter )
.OnShouldFilterAsset( AssetFilter )
.AllowClear( bAllowClear )
];
}