Popup_WriteBoard.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 "NetworkData.h"
#include "UBasePopup.h"
#include "Popup_WriteBoard.generated.h"
 
DECLARE_DYNAMIC_MULTICAST_DELEGATE(FOnCanvasSaved);
 
UCLASS()
class ONEPIECE_API UPopup_WriteBoard : public UBasePopup
{
    GENERATED_BODY()
 
public:
    UPopup_WriteBoard(const FObjectInitializer& ObjectInitializer);
    virtual void NativeOnInitialized() override;
    virtual void NativeConstruct() override;
 
    // Init Popup
    void InitPopup(int32 InQid, const FWriteQuestionData& InQuestionData);
 
    FVector2D GetPrevMousePos();
 
    UPROPERTY(BlueprintAssignable)
    FOnCanvasSaved OnCanvasSaved;
    
protected:
    // Objects
    UPROPERTY(VisibleAnywhere, BlueprintReadOnly)
    TObjectPtr<class UTextureRenderTarget2D> RT_Canvas;
    
    // Widgets
    UPROPERTY(BlueprintReadOnly, meta=(BindWidget))
    TObjectPtr<class UOverlay> Overlay_WriteBoard;
    UPROPERTY(BlueprintReadOnly, meta=(BindWidget))
    TObjectPtr<class UTextBlock> Text_Question;
    UPROPERTY(BlueprintReadOnly, meta=(BindWidget))
    TObjectPtr<class USizeBox> SizeBox_Canvas;
    UPROPERTY(BlueprintReadOnly, meta=(BindWidget))
    TObjectPtr<class UImageButton> Button_Save;
    
    // WriteBoard Widgets
    UPROPERTY(BlueprintReadOnly, meta=(BindWidget))
    TObjectPtr<class UHorizontalBox> HorizontalBox_DotLine;
    UPROPERTY()
    TArray<class UImage*> DotLineImages;
    
    UPROPERTY(BlueprintReadOnly, meta=(BindWidget))
    TObjectPtr<class UHorizontalBox> HorizontalBox_Guide;
    UPROPERTY()
    TArray<class UTextBlock*> GuideTexts;
    UPROPERTY(BlueprintReadOnly, meta=(BindWidget))
    TObjectPtr<class UTextBlock> Text_Guide;
    FSlateFontInfo tempFontInfo;
    
    UPROPERTY(BlueprintReadOnly, meta=(BindWidget))
    TObjectPtr<class UImage> Image_Canvas;
    
    // Values
    UPROPERTY(BlueprintReadOnly)
    FVector2D prevMousePos;
    UPROPERTY(BlueprintReadOnly)
    bool bIsDrawing;
    
    // Mouse Event
    virtual FReply NativeOnMouseButtonDown(const FGeometry& InGeometry, const FPointerEvent& InMouseEvent) override;
    virtual FReply NativeOnMouseButtonUp(const FGeometry& InGeometry, const FPointerEvent& InMouseEvent) override;
    virtual FReply NativeOnMouseMove(const FGeometry& InGeometry, const FPointerEvent& InMouseEvent) override;
    
    // Adjust WriteBoard Length
    void AdjustLength();
    
    // Clear WriteBoard
    void ClearWriteBoard();
    
private:
    // WriteBoard
    UPROPERTY()
    TObjectPtr<class UWriteBoard> writeBoardObject;
    
    // Question Id
    int32 Qid;
    FString AnswerKr;
    
    // Now Answer Index
    int32 AnswerIdx = 0;
    // Canvas Step Length
    float stepLength = 360;
    // Border Min Width
    float borderMinWidth = 560;
    
    // DotLine Image
    UPROPERTY()
    TObjectPtr<class UTexture2D> dotLineTexture;
    UPROPERTY()
    TObjectPtr<class UFont> guideTextFont;
    
    // Draw Functions
    void DrawLines(FVector2D mousePos, FLinearColor drawColor);
    void DrawPoint(FVector2D mousePos, FLinearColor drawColor);
    FVector2D GetLocalMousePos(FVector2D mousePos);
    
    UFUNCTION()
    void SaveCanvas();
    
    void ClearCanvas();
};