Initial work on prompt widget

Source/Integration/PromptWidget.h

@@ -0,0 +1,67 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Common.h"
+#include "Components/Widget.h"
+#include "InputCoreTypes.h"
+#include "Widgets/Layout/SScaleBox.h"
+#include "PromptWidget.generated.h"
+
+
+UCLASS(BlueprintType, Blueprintable)
+class INTEGRATION_API UlxPromptWidget : public UWidget
+{
+	GENERATED_BODY()
+
+public:
+	UPROPERTY(EditAnywhere, Category="Prompt")
+	TObjectPtr<UTexture2D> ButtonAtlas;
+
+	UFUNCTION(BlueprintCallable, Category="Prompt")
+	void SetKeys(FKey InGamepadKey, FKey InKeyboardKey);
+
+	UPROPERTY(EditAnywhere, Setter, Category="Prompt")
+	FVector2D Size = FVector2D(64, 64);
+
+	UPROPERTY(EditAnywhere, Setter, Category="Prompt")
+	FMargin GlyphMargins = FMargin(0.0f, 0.1f, 0.0f, 0.1f);
+
+	UPROPERTY(EditAnywhere, Setter, Category="Prompt")
+	FLinearColor GlyphColor = FLinearColor::White;
+
+
+	UFUNCTION(BlueprintCallable, Category="Prompt")
+	void SetGlyphMargins(FMargin InMargins);
+
+	UFUNCTION(BlueprintCallable, Category="Prompt")
+	void SetGlyphColor(FLinearColor InColor);
+
+
+	UFUNCTION(BlueprintCallable, Category="Prompt")
+	void SetSize(FVector2D InSize);
+
+protected:
+	virtual TSharedRef<SWidget> RebuildWidget() override;
+	virtual void SynchronizeProperties() override;
+	virtual void ReleaseSlateResources(bool bReleaseChildren) override;
+
+	UPROPERTY(EditAnywhere, Category="Prompt")
+	FKey GamepadKey = EKeys::Gamepad_FaceButton_Left;
+
+	UPROPERTY(EditAnywhere, Category="Prompt")
+	FKey KeyboardKey = EKeys::Z;
+
+private:
+	FSlateBrush MyBrush;
+	TSharedPtr<SOverlay> MyOverlay;
+	TSharedPtr<SImage> MyImage;
+	TSharedPtr<SScaleBox> MyScaleBox;
+	TSharedPtr<STextBlock> MyGlyph;
+	SOverlay::FOverlaySlot* MyGlyphSlot = nullptr;
+
+	FBox2f GetIconUVs(int32 IconIndex);
+	FMargin GetScaledMargins() const;
+	void CalcAppearance(int32& OutIcon, FString& OutGlyph) const;
+	void CalcKeyboardAppearance(int32& OutIcon, FString& OutGlyph) const;
+	void CalcGamepadAppearance(ElxInputMode Mode, int32& OutIcon, FString& OutGlyph) const;
+};