Files
UnrealEngine/Engine/Source/Editor/DetailCustomizations/Public/GuidStructCustomization.h
2025-05-18 13:04:45 +08:00

96 lines
2.6 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "CoreMinimal.h"
#include "IPropertyTypeCustomization.h"
#include "Internationalization/Text.h"
#include "Styling/SlateColor.h"
#include "Templates/SharedPointer.h"
#include "Types/SlateEnums.h"
class IPropertyHandle;
class SEditableTextBox;
struct FGuid;
namespace EPropertyEditorGuidActions
{
/**
* Enumerates quick-set action types.
*/
enum Type
{
/** Generate a new GUID. */
Generate,
/** Set a null GUID. */
Invalidate
};
}
// Writes the supplied GUID to the supplied property handle as one undoable transaction
DETAILCUSTOMIZATIONS_API void WriteGuidToProperty(TSharedPtr<IPropertyHandle> GuidPropertyHandle, const FGuid& Guid);
/**
* Implements a details panel customization for FGuid structures.
*/
class FGuidStructCustomization
: public IPropertyTypeCustomization
{
public:
/**
* Creates a new instance.
*
* @return A new struct customization for Guids.
*/
static TSharedRef<IPropertyTypeCustomization> MakeInstance( )
{
return MakeShareable(new FGuidStructCustomization);
}
public:
// IPropertyTypeCustomization interface
virtual void CustomizeHeader( TSharedRef<class IPropertyHandle> StructPropertyHandle, class FDetailWidgetRow& HeaderRow, IPropertyTypeCustomizationUtils& StructCustomizationUtils ) override;
virtual void CustomizeChildren( TSharedRef<class IPropertyHandle> StructPropertyHandle, class IDetailChildrenBuilder& StructBuilder, IPropertyTypeCustomizationUtils& StructCustomizationUtils ) override;
protected:
/**
* Sets the property's value.
*
* @param Guid The value to set.
*/
void SetGuidValue( const FGuid& Guid );
private:
/** Callback for clicking an item in the quick-set menu. */
void HandleGuidActionClicked( EPropertyEditorGuidActions::Type Action );
/** Handles getting the text color of the editable text box. */
FSlateColor HandleTextBoxForegroundColor() const;
/** Handles getting the text to be displayed in the editable text box. */
FText HandleTextBoxText( ) const;
/** Handles changing the value in the editable text box. */
void HandleTextBoxTextChanged( const FText& NewText );
/** Handles committing the text in the editable text box. */
void HandleTextBoxTextCommited( const FText& NewText, ETextCommit::Type CommitInfo );
private:
/** Holds a flag indicating whether the current input is a valid GUID. */
bool InputValid;
/** Holds a handle to the property being edited. */
TSharedPtr<IPropertyHandle> PropertyHandle;
/** Holds the text box for editing the Guid. */
TSharedPtr<SEditableTextBox> TextBox;
};