UImageButton.h

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// Copyright (c) 2025 Doppleddiggong. All rights reserved. Unauthorized copying, modification, or distribution of this file, via any medium is strictly prohibited. Proprietary and confidential.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Blueprint/UserWidget.h"
#include "UImageButton.generated.h"
 
DECLARE_DYNAMIC_MULTICAST_DELEGATE(FOnImageButtonClickedEvent);
 
UCLASS()
class ONEPIECE_API UImageButton : public UUserWidget
{
    GENERATED_BODY()
 
public:
    UFUNCTION(BlueprintCallable)
    void SetButtonEnabled(bool bInEnabled);
 
protected:
    virtual void NativePreConstruct() override;
    virtual void NativeConstruct() override;
    virtual void NativeTick(const FGeometry& MyGeometry, float InDeltaTime) override;
 
private:
    void ApplyStyle();
 
    UFUNCTION()
    void HandleHovered();
 
    UFUNCTION()
    void HandleUnhovered();
 
    UFUNCTION()
    void HandlePressed();
 
    UFUNCTION()
    void HandleReleased();
 
    UFUNCTION()
    void HandleClicked();
 
public:
    UPROPERTY(BlueprintAssignable, Category = "Event")
    FOnImageButtonClickedEvent OnButtonClickedEvent;
 
    // ========== 텍스트 스타일 ==========
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Text", meta=(ExposeOnSpawn=true))
    FText LabelText = FText::FromString("Button");
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Text", meta=(ExposeOnSpawn=true))
    int32 FontSize = 48;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Text", meta=(ExposeOnSpawn=true))
    int32 FontOutlineSize = 0;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Text", meta=(ExposeOnSpawn=true))
    FLinearColor NormalTextColor = FLinearColor::White;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Text", meta=(ExposeOnSpawn=true))
    FLinearColor HoverTextColor = FLinearColor(0.8f, 0.9f, 1.f);
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Text", meta=(ExposeOnSpawn=true))
    FLinearColor PressTextColor = FLinearColor(0.6f, 0.7f, 1.f);
 
    // ========== 버튼 배경 색상 ==========
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Background", meta=(ExposeOnSpawn=true))
    FLinearColor NormalButtonColor = FLinearColor(0.1f, 0.1f, 0.1f);
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Background", meta=(ExposeOnSpawn=true))
    FLinearColor HoverButtonColor = FLinearColor(0.2f, 0.2f, 0.2f);
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Background", meta=(ExposeOnSpawn=true))
    FLinearColor PressButtonColor = FLinearColor(0.05f, 0.05f, 0.05f);
 
    // ========== Border 이미지 ==========
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Border", meta=(ExposeOnSpawn=true))
    UTexture2D* BorderImage = nullptr;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Border", meta=(ExposeOnSpawn=true))
    TEnumAsByte<ESlateBrushDrawType::Type> BorderDrawAs = ESlateBrushDrawType::Image;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Border", meta=(ExposeOnSpawn=true))
    FMargin BorderMargin = FMargin(0.0f);
 
    // ========== 크기 설정 ==========
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Size", meta=(ExposeOnSpawn=true))
    bool bUseFixedSize = false;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Size", meta=(ExposeOnSpawn=true, EditCondition="bUseFixedSize"))
    float FixedWidth = 200.0f;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Style|Size", meta=(ExposeOnSpawn=true, EditCondition="bUseFixedSize"))
    float FixedHeight = 100.0f;
 
private:
    UPROPERTY(meta = (BindWidget))
    class USizeBox* SizeBox_Root;
 
    UPROPERTY(meta = (BindWidget))
    class UButton* Button_Main;
 
    UPROPERTY(meta = (BindWidget))
    class UBorder* Border_BG;
 
    UPROPERTY(meta = (BindWidget))
    class UTextBlock* Text_Label;
 
private:
    // 현재 값
    FVector2D CurrentScale = FVector2D(1.f, 1.f);
    float CurrentBrightness = 1.0f;
 
    // 목표값
    FVector2D TargetScale = FVector2D(1.f, 1.f);
    float TargetBrightness = 1.f;
 
    // 애니메이션 속도
    float LerpSpeed = 20.f;
 
    bool bEnabled = true;
 
    // Border 이미지용 캐시된 Brush (GetBrush()가 없으므로 캐싱 필요)
    FSlateBrush CachedBorderBrush;
    bool bBorderBrushInitialized = false;
};