WidgetLayer.h

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// Copyright 2024 Lost in Game Studio. All Rights Reserved.
 
#pragma once
 
#include "ComponentDecorator.h"
#include "Blueprint/UserWidget.h"
#include "WidgetLayer.generated.h"
 
UCLASS()
class TOUCHINTERFACE_API UWidgetLayer : public UComponentDecorator
{
    GENERATED_BODY()
 
    //TODO: Use UWidgetTree for creating UserWidget in editor?
    
public:
    UWidgetLayer();
 
    virtual void Initialize(TObjectPtr<ULayoutComponent> Component) override;
    
    virtual TSharedRef<SWidget> CreateWidgetInstance() override;
 
    UFUNCTION(Category="Widget Layer", BlueprintCallable, BlueprintPure)
    UUserWidget* GetUserWidget();

    UFUNCTION(Category="Widget Layer", BlueprintCallable)
    void SetUserWidget(TSubclassOf<UUserWidget> NewUserWidget);
    
    virtual void HandleOnPressEvent(const FGeometry& ComponentGeometry, const FGeometry& LayoutGeometry, const FPointerEvent& PointerEvent) override;
    virtual void HandleOnReleaseEvent(const FGeometry& ComponentGeometry, const FGeometry& LayoutGeometry, const FPointerEvent& PointerEvent) override;
    virtual void HandleOnMoveEvent(const FGeometry& ComponentGeometry, const FGeometry& LayoutGeometry, const FPointerEvent& PointerEvent);
    virtual void HandleOnTickEvent(const FGeometry& ComponentGeometry, const double InCurrentTime, const float DeltaTime);
 
public:
    UPROPERTY(Category="Widget Layer", EditAnywhere, BlueprintReadOnly, meta=(AllowPrivateAccess="true"))
    TSubclassOf<UUserWidget> UserWidgetClass;

    //UPROPERTY(Category="Widget Layer", EditAnywhere, BlueprintReadOnly, meta=(AllowPrivateAccess="true"))
    //uint8 bReceiveInput:1;
    
    //TODO: Receive input? Use interface (test if widget implement interface)
 
private:
    UPROPERTY()
    TObjectPtr<UUserWidget> UserWidgetInstance;
 
    TSharedPtr<SWidget> UserWidget;
};