STouchInterfaceConfigurator.h

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// Copyright 2024 Lost in Game Studio. All Rights Reserved
 
#pragma once
 
#include "CoreMinimal.h"
#include "TouchInterface/VirtualControlSetup.h"
#include "SaveSystem/TouchInterfaceSave.h"
#include "Widgets/SCompoundWidget.h"
 
DECLARE_DELEGATE_OneParam(FOnVirtualInputSelected, FName);
 
class TOUCHINTERFACE_API STouchInterfaceConfigurator : public SCompoundWidget
{
public:
    SLATE_BEGIN_ARGS(STouchInterfaceConfigurator)
        {}
        SLATE_ARGUMENT(float, DPIScale)
        SLATE_ARGUMENT(float, ResizeSensibility)
 
        SLATE_EVENT(FOnVirtualInputSelected, OnVirtualControlSelected)
 
    SLATE_END_ARGS()
 
    
    void Construct(const FArguments& InArgs);
 
    virtual FVector2D ComputeDesiredSize(float LayoutScaleMultiplier) const override;
    
    virtual FReply OnTouchStarted(const FGeometry& MyGeometry, const FPointerEvent& InTouchEvent) override;
    virtual FReply OnDragDetected(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
    virtual FReply OnTouchMoved(const FGeometry& MyGeometry, const FPointerEvent& InTouchEvent) override;
    virtual FReply OnTouchEnded(const FGeometry& MyGeometry, const FPointerEvent& InTouchEvent) override;
    
    virtual int32 OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const override;
 
private:
    virtual void PaintButton(const FVirtualControl& VirtualControl, const FGeometry& AllottedGeometry, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle) const;
    virtual void PaintJoystick(const FVirtualControl& VirtualControl, const FGeometry& AllottedGeometry, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle) const;
    virtual void PaintTouchRegion(const FVirtualControl& VirtualControl, const FGeometry& AllottedGeometry, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle) const;
    
    void DrawLayer(const FVisualLayer& InLayer, const FVector2D InSize, const FVector2D InBrushSize, const FVector2D InOffset, const FGeometry& AllottedGeometry, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle) const;
    
    float GetScaleFactor(const FGeometry& AllottedGeometry) const;
 
    bool IsInside(const FVirtualControl& VirtualControl, const FGeometry& AllottedGeometry, const FVector2D FingerPosition);
 
    FVector2D GetVirtualControlLocation(const FName Name, const FGeometry& AllottedGeometry, const bool bSubtractVisualSize) const;
 
    FVector2D GetVirtualControlPositionFromSetup(const FName Name) const;
 
    FVirtualControl GetVirtualControlFromSetup(const FName Name) const;
 
public:
    void SetConfiguration(FTouchInterfaceConfiguration Configuration);
    FTouchInterfaceConfiguration GetConfiguration();
 
    void ClearTouchInterface();
 
    void SetPreviewEnabled(const bool bEnabled) { bPreview = bEnabled; }
    bool IsPreviewEnabled() const { return bPreview; }
    
    void SetOpacity(const float NewActive, const float NewInactive);
 
    FVector2D GetVirtualInputOffset(const FName InputName);
    void SetVirtualInputOffset(const FName InputName, const FVector2D Offset);
    FVector2D AddOffsetToVirtualInput(const FName InputName, const FVector2D Delta);
 
    float GetVirtualInputSizeScale(const FName InputName);
    void SetVirtualInputSizeScale(const FName InputName, const float Size);
    float AddDeltaToVirtualInputSizeScale(const FName InputName, const float Delta);
    
    void SetDPIScale(const float NewDPIScale) { DPIScale = NewDPIScale; }
 
public:
    uint8 bUseTouchForPositioning:1;
    uint8 bUseTouchForResizing:1;
    
    float ResizeSensibility;
 
    uint8 bDrawPositioningBrush:1;
    FSlateBrush PositioningBrush;
 
    uint8 bDrawOriginalCenterBrush:1;
    FSlateBrush OriginalCenterBrush;
    
private:
    FOnVirtualInputSelected OnVirtualInputSelected;
 
    FTouchInterfaceConfiguration CurrentConfiguration;
    
    UVirtualControlSetup* SetupRef;
 
    FVector2D ScreenSize;
 
    float DPIScale;
    float ActiveOpacity;
    float InactiveOpacity;
    float LastDistanceBetweenFingers;
    
 
    uint8 bPreview:1;
 
    FVector2D TouchLocation_Finger0;
    FVector2D TouchLocation_Finger1;
 
    FName VirtualControlSelectedName;
 
    FVirtualControl VirtualControlSelected;
 
    bool bIsTouching;
    
    uint8 bDragVirtualControl:1;
    uint8 bResizeVirtualControl:1;
    uint8 bCanDrawPositioningBrush:1;
};