VirtualShapeDrawer.h

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// Copyright 2024 Lost in Game Studio. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
//#include "DEPRECATED_LayoutSubsystem.h"
#include "Blueprint/UserWidget.h"
#include "VirtualShape.h"
#include "VirtualShapeDrawer.generated.h"
 
class UDEPRECATED_LayoutSubsystem;
struct FDrawData;
class UTouchInterfaceSubsystem;
 
//TODO: Customization data for visualization
 
//TODO: Make event like OnPointAdded(location), OnShapePointAdded(location) (when runtime detection will be available) 

UCLASS(Blueprintable)
class TOUCHINTERFACE_API UVirtualShapeDrawer : public UUserWidget
{
    GENERATED_BODY()
 
public:
    UVirtualShapeDrawer(const FObjectInitializer& ObjectInitializer);
    
    virtual void NativeConstruct() override;
    virtual void NativeDestruct() override;
    
    UFUNCTION()
    void TouchBegan(int32 Index, FVector2D Location);
 
    UFUNCTION()
    void TouchMoving(int32 Index, FVector2D Location);
 
    UFUNCTION()
    void TouchEnded(int32 Index, FVector2D Location);
 
    
protected:
    virtual int32 NativePaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const override;
 
    
public:
    UFUNCTION(Category="Virtual Shape Drawer", BlueprintCallable)
    void ShowVirtualShapeGuide(UVirtualShape* VirtualShape);
 
    UFUNCTION(Category="Virtual Shape Drawer", BlueprintCallable)
    void HideVirtualShapeGuide();
 
    UFUNCTION(Category="Virtual Shape Drawer", BlueprintCallable, BlueprintPure)
    bool RecognitionReady() const { return bRecognitionReady; }
 
private:
    void LoadResources();
 
    void ClearUserDrawing();
 
public:
    UPROPERTY()
    UTouchInterfaceSubsystem* TouchInterfaceSubsystem;
    
    UPROPERTY(meta=(DeprecatedProperty, DeprecationMessage="Use Touch Interface Subsystem instead"))
    UDEPRECATED_LayoutSubsystem* LayoutSubsystem_DEPRECATED;
    
    
    // Texture used for point
    UPROPERTY(Category="Drawer", EditAnywhere, BlueprintReadWrite, meta=(AllowedClasses="/Script/Engine.Texture2D, /Script/Engine.Material"))
    FSoftObjectPath DotBrush;
 
    // Line size
    UPROPERTY(Category="Drawer", EditAnywhere,BlueprintReadWrite, meta=(ClampMin=1.0f))
    float DrawLineSize;
 
    // Brush size
    UPROPERTY(Category="Drawer", EditAnywhere,BlueprintReadWrite, meta=(ClampMin=1.0f))
    float DrawBrushSize;
    
    // Line color
    UPROPERTY(Category="Drawer", EditAnywhere,BlueprintReadWrite)
    FLinearColor DrawLineColor;
 
    // Brush color
    UPROPERTY(Category="Drawer", EditAnywhere,BlueprintReadWrite)
    FLinearColor DrawBrushColor;
 
    // Line should be draw
    UPROPERTY(Category="Drawer", EditAnywhere,BlueprintReadWrite)
    uint8 bDrawLines:1;
 
    // Point/Brush should be draw
    UPROPERTY(Category="Drawer", EditAnywhere, BlueprintReadWrite)
    uint8 bDrawPoint:1;
 
    //TODO: Separate into three color (near, far, too far)
    UPROPERTY(Category="Drawer|Guide", EditAnywhere, BlueprintReadWrite)
    FLinearColor GuideColor;
 
private:
    UPROPERTY()
    UVirtualShape* VirtualShapeToDraw;
 
    uint8 bDrawVirtualShape:1;
 
    TArray<FDrawData> UserDrawing;
    
    uint8 bIsDrawing:1;
    uint8 bLaunchTimer:1;
    
    FTimerHandle ComputeTimer;
 
    float ShapeDotDistance;
    
    TWeakObjectPtr<UObject> BrushResource;
    
    FSlateBrush PointBrush;
 
    bool bRecognitionReady;
};