SlateTextLayout.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "CoreMinimal.h"
#include "Misc/Attribute.h"
#include "Styling/SlateTypes.h"
#include "Framework/Text/IRun.h"
#include "Framework/Text/TextLayout.h"
#include "Widgets/SWidget.h"
#include "Layout/Children.h"
 
class FArrangedChildren;
class FPaintArgs;
class FSlateWindowElementList;
 
class FSlateTextLayout : public FTextLayout
{
public:
 
    static SLATE_API TSharedRef< FSlateTextLayout > Create(SWidget* InOwner, FTextBlockStyle InDefaultTextStyle);
 
    SLATE_API FChildren* GetChildren();
 
    SLATE_API virtual void ArrangeChildren( const FGeometry& AllottedGeometry, FArrangedChildren& ArrangedChildren ) const;
 
    SLATE_API virtual int32 OnPaint( const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled ) const;
 
    SLATE_API virtual void EndLayout() override;
 
    SLATE_API void SetDefaultTextStyle(FTextBlockStyle InDefaultTextStyle);
    SLATE_API const FTextBlockStyle& GetDefaultTextStyle() const;
 
    SLATE_API void SetIsPassword(const TAttribute<bool>& InIsPassword);
 
protected:
 
    SLATE_API FSlateTextLayout(SWidget* InOwner, FTextBlockStyle InDefaultTextStyle);
 
    SLATE_API virtual int32 OnPaintHighlights(const FPaintArgs& Args, const FTextLayout::FLineView& LineView, const TArray<FLineViewHighlight>& Highlights, const FTextBlockStyle& DefaultTextStyle, const FGeometry& AllottedGeometry, const FSlateRect& ClippingRect, FSlateWindowElementList& OutDrawElements, const int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const;
 
    SLATE_API virtual void AggregateChildren();
 
    SLATE_API virtual TSharedRef<IRun> CreateDefaultTextRun(const TSharedRef<FString>& NewText, const FTextRange& NewRange) const override;
 
protected:
    FTextBlockStyle DefaultTextStyle;
 
private:
 
    TSlotlessChildren< SWidget > Children;
 
    TAttribute<bool> bIsPassword;
 
    friend class FSlateTextLayoutFactory;
};