Files
UnrealEngine/Engine/Source/Editor/UMGEditor/Private/Widgets/SFieldNotificationPicker.h
2025-05-18 13:04:45 +08:00

64 lines
1.8 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Containers/Array.h"
#include "Containers/BitArray.h"
#include "Containers/Set.h"
#include "Containers/SparseArray.h"
#include "Delegates/Delegate.h"
#include "FieldNotificationId.h"
#include "HAL/PlatformCrt.h"
#include "Internationalization/Text.h"
#include "Misc/Attribute.h"
#include "Misc/Optional.h"
#include "Serialization/Archive.h"
#include "Templates/SharedPointer.h"
#include "Templates/TypeHash.h"
#include "Templates/UnrealTemplate.h"
#include "Types/SlateEnums.h"
#include "Widgets/DeclarativeSyntaxSupport.h"
#include "Widgets/Input/SComboBox.h"
#include "Widgets/SCompoundWidget.h"
class SWidget;
class UClass;
namespace UE::FieldNotification
{
/**
* A widget which allows the user to enter a FieldNotificationId or discover it from a drop menu.
*/
class SFieldNotificationPicker : public SCompoundWidget
{
public:
DECLARE_DELEGATE_OneParam(FOnValueChanged, FFieldNotificationId);
SLATE_BEGIN_ARGS(SFieldNotificationPicker)
{}
SLATE_ATTRIBUTE(FFieldNotificationId, Value)
SLATE_EVENT(FOnValueChanged, OnValueChanged)
SLATE_ATTRIBUTE(UClass*, FromClass)
SLATE_END_ARGS()
void Construct(const FArguments& InArgs);
FFieldNotificationId GetCurrentValue() const;
private:
void HandleComboBoxChanged(TSharedPtr<FFieldNotificationId> InItem, ESelectInfo::Type InSeletionInfo);
TSharedRef<SWidget> HandleGenerateWidget(TSharedPtr<FFieldNotificationId> InItem);
void HandleComboOpening();
FText HandleComboBoxValueAsText() const;
private:
TSharedPtr<SComboBox<TSharedPtr<FFieldNotificationId>>> PickerBox;
TArray<TSharedPtr<FFieldNotificationId>> FieldNotificationIdsSource;
FOnValueChanged OnValueChangedDelegate;
TAttribute<FFieldNotificationId> ValueAttribute;
TAttribute<UClass*> FromClassAttribute;
};
} // namespace