NullWindow.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "Logging/LogMacros.h"
#include "Templates/SharedPointer.h"
#include "GenericPlatform/GenericWindow.h"
#include "Math/IntPoint.h"
 
class FNullApplication;
struct FGenericWindowDefinition;
 
DECLARE_LOG_CATEGORY_EXTERN(LogNullWindow, Log, All);
DECLARE_LOG_CATEGORY_EXTERN(LogNullWindowType, Log, All);
DECLARE_LOG_CATEGORY_EXTERN(LogNullWindowEvent, Log, All);
 
class FNullWindow : public FGenericWindow
{
public:
    static APPLICATIONCORE_API TSharedRef<FNullWindow> Make();
 
    APPLICATIONCORE_API virtual ~FNullWindow();
 
    APPLICATIONCORE_API void Initialize(class FNullApplication* const Application, const TSharedRef<FGenericWindowDefinition>& InDefinition, const TSharedPtr<FNullWindow>& InParent, const bool bShowImmediately);
 
    APPLICATIONCORE_API virtual void ReshapeWindow(int32 X, int32 Y, int32 Width, int32 Height) override;
 
    APPLICATIONCORE_API virtual bool GetFullScreenInfo(int32& X, int32& Y, int32& Width, int32& Height) const override;
 
    APPLICATIONCORE_API virtual void MoveWindowTo(int32 X, int32 Y) override;
 
    APPLICATIONCORE_API virtual void BringToFront(bool bForce = false) override;
 
    APPLICATIONCORE_API virtual void HACK_ForceToFront() override;
 
    APPLICATIONCORE_API virtual void Destroy() override;
 
    APPLICATIONCORE_API virtual void Minimize() override;
 
    APPLICATIONCORE_API virtual void Maximize() override;
 
    APPLICATIONCORE_API virtual void Restore() override;
 
    APPLICATIONCORE_API virtual void Show() override;
 
    APPLICATIONCORE_API virtual void Hide() override;
 
    APPLICATIONCORE_API virtual void SetWindowMode(EWindowMode::Type InNewWindowMode) override;
 
    APPLICATIONCORE_API virtual EWindowMode::Type GetWindowMode() const override;
 
    APPLICATIONCORE_API virtual bool IsMaximized() const override;
 
    APPLICATIONCORE_API virtual bool IsMinimized() const override;
 
    APPLICATIONCORE_API virtual bool IsVisible() const override;
 
    APPLICATIONCORE_API virtual bool GetRestoredDimensions(int32& X, int32& Y, int32& Width, int32& Height) override;
 
    APPLICATIONCORE_API virtual void SetWindowFocus() override;
 
    APPLICATIONCORE_API virtual void SetOpacity(const float InOpacity) override;
 
    APPLICATIONCORE_API virtual void Enable(bool bEnable) override;
 
    APPLICATIONCORE_API virtual bool IsPointInWindow(int32 X, int32 Y) const override;
 
    APPLICATIONCORE_API virtual int32 GetWindowBorderSize() const override;
 
    APPLICATIONCORE_API virtual int32 GetWindowTitleBarSize() const override;
 
    APPLICATIONCORE_API virtual void* GetOSWindowHandle() const override;
 
    APPLICATIONCORE_API virtual bool IsForegroundWindow() const override;
 
    APPLICATIONCORE_API virtual bool IsFullscreenSupported() const override;
 
    APPLICATIONCORE_API virtual void SetText(const TCHAR* const Text) override;
 
    APPLICATIONCORE_API virtual const FGenericWindowDefinition& GetDefinition() const override;
 
    APPLICATIONCORE_API virtual bool IsDefinitionValid() const override;
 
    APPLICATIONCORE_API virtual void AdjustCachedSize(FVector2D& Size) const override;
 
    virtual float GetDPIScaleFactor() const override
    {
        return DPIScaleFactor;
    }
 
    virtual void SetDPIScaleFactor(float Value) override
    {
        DPIScaleFactor = Value;
    }
 
    APPLICATIONCORE_API virtual bool IsManualManageDPIChanges() const override;
 
    APPLICATIONCORE_API virtual void SetManualManageDPIChanges(const bool bAutoHandle) override;
 
    APPLICATIONCORE_API virtual void DrawAttention(const FWindowDrawAttentionParameters& Parameters) override;
 
    APPLICATIONCORE_API virtual void SetNativeWindowButtonsVisibility(bool bVisible);
 
private:
    APPLICATIONCORE_API FNullWindow();
 
    FNullApplication* OwningApplication;
 
    float DPIScaleFactor;
 
    FIntPoint ScreenPosition;
 
    FIntPoint SizeInScreen;
 
    bool bIsVisible;
 
    bool bIsInitialized;
};