Added Tobii from 4.23 + updated

Source/TobiiGTOM/Public/GTOMAwareUI/STobiiRadialMenuWidget.h

@@ -0,0 +1,159 @@
+/******************************************************************************
+* Copyright 2017- Tobii Technology AB. All rights reserved.
+*
+* @author Temaran | Fredrik Lindh | fredrik.lindh@tobii.com | https://github.com/Temaran
+******************************************************************************/
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "DisplayDebugHelpers.h"
+#include "Slate/SRetainerWidget.h"
+#include "Widgets/Layout/SBox.h"
+
+class FArrangedChildren;
+class FPaintArgs;
+class FSlateWindowElementList;
+
+struct FTobiiRadialMenuPanelRenderData
+{
+	TArray<FSlateVertex> PanelVertexData;
+	TArray<SlateIndex> PanelIndexData;
+
+	TArray<FSlateVertex> BorderVertexData; //This also contains the PanelVertexData in the end.
+	TArray<SlateIndex> BorderIndexData;
+};
+
+//This is the underlying slate widget. 
+class TOBIIGTOM_API STobiiRadialMenuWidget : public SPanel
+{
+public:
+	class FSlot : public TSlotBase<FSlot>
+	{
+	public:
+		FSlot& Offset(const TAttribute<FVector2D>& InOffset)
+		{
+			OffsetAttr = InOffset;
+			return *this;
+		}
+
+		FSlot& Scale(const TAttribute<float>& InScale)
+		{
+			ScaleAttr = InScale;
+			return *this;
+		}
+
+		FSlot& Alpha(const TAttribute<float>& InAlpha)
+		{
+			AlphaAttr = InAlpha;
+			return *this;
+		}
+
+		/** Offset */
+		TAttribute<FVector2D> OffsetAttr;
+
+		/** Scale */
+		TAttribute<float> ScaleAttr;
+
+		/** Alpha */
+		TAttribute<float> AlphaAttr;
+
+		/** Default values for a slot. */
+		FSlot()
+			: TSlotBase<FSlot>()
+			, OffsetAttr(FVector2D(0.0f, 0.0f))
+			, ScaleAttr(1.0f)
+			, AlphaAttr(1.0f)
+		{ }
+	};
+
+	SLATE_BEGIN_ARGS(STobiiRadialMenuWidget)
+		: _UseHardBorder(true)
+		, _BorderColor(FColor(230, 230, 230))
+		, _PanelColor(FColor(70, 70, 70))
+		, _BorderThicknessPx(5.0f)
+		, _SegmentSeparationPx(10.0f)
+		, _AngularDisplacementDeg(0.0f)
+		, _RadiusPx(500.0f)
+		, _VertexCount(360)
+	{
+		_Visibility = EVisibility::SelfHitTestInvisible;
+	}
+
+		SLATE_SUPPORTS_SLOT(STobiiRadialMenuWidget::FSlot)
+		SLATE_ARGUMENT(bool, UseHardBorder)
+		SLATE_ARGUMENT(FColor, BorderColor)
+		SLATE_ARGUMENT(FColor, PanelColor)
+		SLATE_ARGUMENT(float, BorderThicknessPx)
+		SLATE_ARGUMENT(float, SegmentSeparationPx)
+		SLATE_ARGUMENT(float, AngularDisplacementDeg)
+		SLATE_ARGUMENT(float, RadiusPx)
+		SLATE_ARGUMENT(int32, VertexCount)
+
+	SLATE_END_ARGS()
+
+	STobiiRadialMenuWidget();
+
+	void Construct(const FArguments& InArgs);
+
+	static FSlot& Slot()
+	{
+		return *(new FSlot());
+	}
+
+	/**
+	 * Adds a content slot.
+	 *
+	 * @return The added slot.
+	 */
+	FSlot& AddSlot()
+	{
+		Invalidate(EInvalidateWidget::Layout);
+
+		STobiiRadialMenuWidget::FSlot& NewSlot = *(new FSlot());
+		this->Children.Add(&NewSlot);
+		return NewSlot;
+	}
+
+	/**
+	 * Removes a particular content slot.
+	 *
+	 * @param SlotWidget The widget in the slot to remove.
+	 */
+	int32 RemoveSlot(const TSharedRef<SWidget>& SlotWidget);
+
+	/**
+	 * Removes all slots from the panel.
+	 */
+	void ClearChildren();
+
+public:
+	// Begin SWidget overrides
+	virtual void OnArrangeChildren(const FGeometry& AllottedGeometry, FArrangedChildren& ArrangedChildren) const override;
+	virtual int32 OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const override;
+	virtual FChildren* GetChildren() override;
+	// End SWidget overrides
+
+protected:
+	// Begin SWidget overrides.
+	virtual FVector2D ComputeDesiredSize(float LayoutScaleMultiplier) const override;
+	// End SWidget overrides.
+
+protected:
+	/** The ConstraintCanvas widget's children. */
+	TPanelChildren<FSlot> Children;
+
+public:
+	FSlateResourceHandle BrushResourceHandle;
+	bool bUseHardBorder;
+	FColor BorderColor;
+	FColor PanelColor;
+	float BorderThicknessPx;
+	float SegmentSeparationPx;
+	float AngularDisplacementDeg;
+	float RadiusPx;
+	int32 VertexCount;
+
+private:
+	void GeneratePanelRenderData(const FGeometry& AllottedGeometry, int32 NrChildren, TArray<FTobiiRadialMenuPanelRenderData>& OutChildRenderData) const;
+};