STouchRegion.h

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// Copyright Lost in Game Studio. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "SVirtualControl.h"

class TOUCHINTERFACE_API STouchRegion : public SVirtualControl
{
public:
    SLATE_BEGIN_ARGS(STouchRegion)
    : _TouchInterface(nullptr)
    , _VirtualInput(nullptr)
    , _Slot(nullptr)
    , _AutoPositioning(true)
    , _UseInputAction(false)
    , _ParentOffset(ForceInitToZero)
    {}
 
    SLATE_ARGUMENT(TSharedPtr<SDeprecatedTouchInterface>, TouchInterface)
    SLATE_ARGUMENT(FVirtualControl, VirtualControl)
    SLATE_ARGUMENT(UVirtualInput*, VirtualInput)
    SLATE_ARGUMENT(SConstraintCanvas::FSlot*, Slot)
    SLATE_ARGUMENT(bool, AutoPositioning)
    SLATE_ARGUMENT(bool, UseInputAction)
    SLATE_ARGUMENT(FVector2D, ParentOffset)
    SLATE_ARGUMENT(ULocalPlayer*, LocalPlayer)
 
    SLATE_ATTRIBUTE(float, Opacity)
    SLATE_ATTRIBUTE(float, ScaleFactor)
    SLATE_ATTRIBUTE(bool, DrawDebug)
    
    SLATE_END_ARGS()
 
    STouchRegion();
    
    void Construct(const FArguments& InArgs);
 
    //SVirtualControl
    virtual bool OnPress(const FGeometry& MyGeometry, const FPointerEvent& Event) override;
    virtual void OnMove(const FGeometry& MyGeometry, const FPointerEvent& Event) override;
    virtual void OnRelease(const FGeometry& MyGeometry, const FPointerEvent& Event) override;
    virtual void OnTick(const FGeometry& MyGeometry, const float InScaleFactor, const double InCurrentTime, const float InDeltaTime, const bool InForceUpdate, const bool OrientToLandscape) override;
    //SVirtualControl
 
    //SWidget
    virtual int32 OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const override;
    virtual FVector2D ComputeDesiredSize(float LayoutScaleMultiplier) const override;
    //SWidget
 
private:
    uint8 bConsumeDelta:1;
    uint8 bSendOneMoveEvent:1;
    uint8 bUseJoystickMode:1;
 
    FVector2D StartLocation;
    FVector2D CurrentLocation;
    
    FVector2D PreviousLocation;
 
    FVector2D Delta;
};