LoadingScreenSlate.h

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#pragma once
 
#include "CoreMinimal.h"
#include "SlateBasics.h"
#include "SlateExtras.h"
#include "Public/Blueprint/UserWidget.h"
#include "Public/Widgets/SCompoundWidget.h"
#include "Public/Widgets/SLeafWidget.h"
#include "LoadingScreenSlate.generated.h"
 
UCLASS()
class ULoadingScreenSlate : public UObject
{
    GENERATED_BODY()
};
 
class SLoadingScreenWidget : public SLeafWidget
{
public:
    SLATE_BEGIN_ARGS(SLoadingScreenWidget) {}
    SLATE_END_ARGS()
 
public:
    virtual void StartFadeSequence();
    virtual void LoadComplete() = 0;
 
protected:
    FCurveSequence FadeSequence;
    FCurveHandle FadeCurve;
    float FadeTime;
};
 
class SProjectXLoadingScreen : public SCompoundWidget
{
public:
    SLATE_BEGIN_ARGS(SProjectXLoadingScreen) {}
        SLATE_ARGUMENT(float, FadeTime)
        SLATE_ARGUMENT(FSlateBrush*, Image)
        SLATE_ARGUMENT(FSlateBrush*, FrameBrush)
        SLATE_ARGUMENT(FSlateBrush*, ForeGroundBrush)
        SLATE_ARGUMENT(FSlateBrush*,MiddleGroundTitleBrush)
        SLATE_ARGUMENT(const FSlateBrush*, LoadingIcon)
        SLATE_ARGUMENT(FText, MapName)
        SLATE_ARGUMENT(FSlateFontInfo, MapNameFont)
        SLATE_ARGUMENT(FText, MapSize)
        SLATE_ARGUMENT(FSlateFontInfo, MapSizeFont)
        SLATE_ARGUMENT(FText, AuthorName)
        SLATE_ARGUMENT(FSlateFontInfo, AuthorNameFont)
        SLATE_ARGUMENT(FText, DescriptionText)
        SLATE_ARGUMENT(FSlateFontInfo, DescriptionFont)
        SLATE_ARGUMENT(FText, MapDescriptionText)
        SLATE_ARGUMENT(FSlateFontInfo, MapDescriptionFont)
        SLATE_ARGUMENT(FSlateColor, LevelNameColor)
        SLATE_ARGUMENT(FSlateColor, ModeColor)
        SLATE_ARGUMENT(FSlateColor, DescriptionColor)
        SLATE_ARGUMENT(const FSlateBrush*, TitleBackground)
    SLATE_END_ARGS()
 
    void Construct(const FArguments& InArgs);
 
    void LoadComplete();
 
    float GetFadeTime() const { return FadeTime; }
 
    UFUNCTION()
    TOptional<FSlateRenderTransform> GetTextRenderTransform() const;
    UFUNCTION()
    TOptional<FSlateRenderTransform> GetDescriptionTextRenderTransform() const;
    UFUNCTION()
    TOptional<FSlateRenderTransform> GetMapInfoBackgourndTransform() const;
    UFUNCTION()
    TOptional<FSlateRenderTransform> GetModeTextRenderTransform() const;
    UFUNCTION()
    TOptional<FSlateRenderTransform> GetMapNameTextRenderTransform() const;
    UFUNCTION()
    TOptional<FSlateRenderTransform> GetMapSizeTextRenderTransform() const;
    UFUNCTION()
    FSlateColor GetTextRenderColor() const;
    UFUNCTION()
    FSlateColor GetDescriptionTextRenderColor() const;
    UFUNCTION()
    FSlateColor GetBackgroundImageRenderColor() const;
 
    TAttribute<TOptional<FSlateRenderTransform>> TextRenderTransform;
    TAttribute<TOptional<FSlateRenderTransform>> DescriptionTextRenderTransform;
    TAttribute<TOptional<FSlateRenderTransform>> MapInfoBackgroundTransform;
    TAttribute<TOptional<FSlateRenderTransform>> MapDescriptionBackgroundTransform;
    TAttribute<TOptional<FSlateRenderTransform>> ModeTextRenderTransform;
    TAttribute<TOptional<FSlateRenderTransform>> MapSizeRenderTransform;
    TAttribute<TOptional<FSlateRenderTransform>> MapNameTextRenderTransform;
    TAttribute<FSlateColor> TitleTextRenderColour;
    TAttribute<FSlateColor> DescriptionTextRenderColour;
    TAttribute<FSlateColor> BackgroundImageRenderColour;
 
    FSlateColor MapNameTextColor;
    FSlateColor DescriptionTextColor;
 
protected:
    TSharedPtr<SLoadingScreenWidget> BackgroundWidget;
    TSharedPtr<SImage> ForegroundWidget;
    TSharedPtr<SLoadingScreenWidget> FrameWidget;
    TSharedPtr<SLoadingScreenWidget> LoadIconWidget;
    TSharedPtr<SImage> MapBackgroundWidget;
    TSharedPtr<SImage> MapDescriptionBackgroundWidget;
    TSharedPtr<SImage> MapMiddlegroundWidget;
    TSharedPtr<STextBlock> MapNameTextWidget;
    TSharedPtr<STextBlock> MapSizeTextWidget;
    TSharedPtr<STextBlock> AuthorNameTextWidget;
    TSharedPtr<STextBlock> DescriptionTextWidget;
    TSharedPtr<STextBlock> MapDescriptionText;
    
    float FadeTime = 0.f;
    FCurveSequence FadeSequence;
    FCurveHandle FadeCurve;
    FCurveHandle TextCurve;
};
 
class SLoadingScreenBackground : public SLoadingScreenWidget
{
public:
    SLATE_BEGIN_ARGS(SLoadingScreenBackground)
    {}
        SLATE_ARGUMENT(float, FadeTime)
        SLATE_ARGUMENT(FSlateBrush*, Image)
    SLATE_END_ARGS()
            
    void Construct(const FArguments& InArgs);
 
    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) const override;
 
    virtual void LoadComplete() override;
 
protected:
    //The image we want to draw on this widget. Data chained down from SProjectXLoadingScreen
    FSlateBrush* Image;
 
    bool bFadingOut = false;
};
 
class SLoadingScreenFrame : public SLoadingScreenWidget
{
public:
    SLATE_BEGIN_ARGS(SLoadingScreenFrame) {}
        SLATE_ARGUMENT(float, FadeTime)
        SLATE_ARGUMENT(FSlateBrush*, FrameBrush)
    SLATE_END_ARGS()
        
    void Construct(const FArguments& InArgs);
 
    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) const override;
 
    virtual void LoadComplete() override;
 
protected:
    //The image we want to draw on this widget. Data chained down from SProjectXLoadingScreen
    FSlateBrush* FrameBrush;
 
    bool bFadingOut = false;
};
 
class SLoadingScreenIcon : public SLoadingScreenWidget
{
public:
    SLATE_BEGIN_ARGS(SLoadingScreenIcon) {}
        SLATE_ARGUMENT(float, FadeTime)
        SLATE_ARGUMENT(const FSlateBrush*, LoadingIcon)
    SLATE_END_ARGS()
            
    void Construct(const FArguments& InArgs);
 
    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) const override;
 
    virtual void StartFadeSequence() override;
    virtual void LoadComplete() override;
 
protected:
    //The image we want to draw on this widget. Data chained down from SProjectXLoadingScreen
    const FSlateBrush* LoadingIcon;
    //The duration this fade lasts for. Data chained down from SProjectXLoadingScreen
    float FadeTime;
 
    FCurveSequence AnimationSequence;
    FCurveHandle SpinCurve;
};