BlurLayer.h

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// Copyright 2025 Lost in Game Studio. All Rights Reserved.
 
#pragma once
 
#include "ComponentDecorator.h"
#include "BlurLayer.generated.h"
 
class SBackgroundBlur;
 
UCLASS()
class TOUCHINTERFACE_API UBlurLayer : public UComponentDecorator
{
    GENERATED_BODY()
 
public:
    UBlurLayer();
    
    virtual TSharedRef<SWidget> CreateWidgetInstance() override;
 
#if WITH_EDITOR
    virtual void SynchronizeProperties() override;
#endif
 
    // Returns the strength of blur
    UFUNCTION(Category="Blur Layer", BlueprintCallable, BlueprintPure)
    float GetBlurStrength() const { return BlurStrength; }
 
    // Set the strength of blur
    UFUNCTION(Category="Blur Layer", BlueprintCallable)
    void SetBlurStrength(const float Strength);
 
    // Returns the radius of blur
    UFUNCTION(Category="Blur Layer", BlueprintCallable, BlueprintPure)
    float GetBlurRadius() const { return BlurRadius; }
 
    // Set the radius of blur
    UFUNCTION(Category="Blur Layer", BlueprintCallable)
    void SetBlurRadius(const float Radius);
 
    // Returns the corner radius of blur
    UFUNCTION(Category="Blur Layer", BlueprintCallable, BlueprintPure)
    FVector4 GetCornerRadius() const { return CornerRadius; }
 
    // Set the radius of corner
    UFUNCTION(Category="Blur Layer", BlueprintCallable)
    void SetCornerRadius(const FVector4 Radius);
    
public:
    // Use brush as low quality fallback brush
    UPROPERTY(Category="Blur Layer", EditAnywhere, BlueprintReadOnly, meta=(AllowPrivateAccess="true"))
    bool bEnableBackgroundBlur;
 
    // Strength of blur
    UPROPERTY(Category="Blur Layer", EditAnywhere, BlueprintReadOnly, meta=(AllowPrivateAccess="true"))
    float BlurStrength;
 
    // Number of pixel around origin to use for blur
    UPROPERTY(Category="Blur Layer", EditAnywhere, BlueprintReadOnly, meta=(ClampMin=1, AllowPrivateAccess="true"))
    int32 BlurRadius;
 
    // Square by default. Allow you to round corner.
    UPROPERTY(Category="Blur Layer", EditAnywhere, BlueprintReadOnly, meta=(AllowPrivateAccess="true"))
    FVector4 CornerRadius;
 
private:
    TSharedPtr<SBackgroundBlur> BlurWidget;
};