RichTextBox.cpp

// Fill out your copyright notice in the Description page of Project Settings.
/* Replace this with your project.h */
#include "MyProject.h"
#include "RichTextBox.h"
#include "Runtime/UMG/Public/Components/RichTextBlockDecorator.h"


#define LOCTEXT_NAMESPACE "UMG"

URichTextBox::URichTextBox(const FObjectInitializer& ObjectInitializer)
    : Super(ObjectInitializer)
{
    static ConstructorHelpers::FObjectFinder<UFont> RobotoFontObj(TEXT("/Engine/EngineFonts/Roboto"));
    Font = FSlateFontInfo(RobotoFontObj.Object, 12, FName("Regular"));
    ColorAndOpacity = FLinearColor::White;
    LineHeightPercentage = 1;
    ShadowOffset = FVector2D(1.0f, 1.0f);
    ShadowColorAndOpacity = FLinearColor::Transparent;


    Decorators.Add(ObjectInitializer.CreateOptionalDefaultSubobject<URichTextBlockDecorator>(this, FName("DefaultDecorator")));
}

void URichTextBox::ReleaseSlateResources(bool bReleaseChildren)
{
    Super::ReleaseSlateResources(bReleaseChildren);

    MyRichTextBlock.Reset();
}

void URichTextBox::SetText(FText InText)
{
    Text = InText;
    if (MyRichTextBlock.IsValid())
    {
        MyRichTextBlock->SetText(Text);
    }
}

FText URichTextBox::GetText()
{
    return Text;
}

TSharedRef<SWidget> URichTextBox::RebuildWidget()
{
    //+ OnHyperlinkClicked = FSlateHyperlinkRun::FOnClick::CreateStatic(&RichTextHelper::OnBrowserLinkClicked, AsShared());
    //+ FHyperlinkDecorator::Create(TEXT("browser"), OnHyperlinkClicked))
    //+MakeShareable(new FDefaultRichTextDecorator(Font, Color));

    DefaultStyle.SetFont(Font);
    DefaultStyle.SetColorAndOpacity(ColorAndOpacity);
    DefaultStyle.SetShadowColorAndOpacity(ShadowColorAndOpacity);
    DefaultStyle.SetShadowOffset(ShadowOffset);

    TArray< TSharedRef< class ITextDecorator > > CreatedDecorators;

    for (URichTextBlockDecorator* Decorator : Decorators)
    {
        if (Decorator)
        {
            CreatedDecorators.Add(Decorator->CreateDecorator(Font, ColorAndOpacity));
        }
    }

    MyRichTextBlock =
        SNew(SRichTextBlock)
        .Justification(Justification)
        .AutoWrapText(AutoWrapText)
        .WrapTextAt(WrapTextAt)
        .Margin(Margin)
        .LineHeightPercentage(LineHeightPercentage)
        .TextStyle(&DefaultStyle)
        .Decorators(CreatedDecorators);

    return MyRichTextBlock.ToSharedRef();
}

void URichTextBox::SynchronizeProperties()
{
    Super::SynchronizeProperties();

    UE_LOG(LogWindows, Log, TEXT("Synchronizing Properties"));

    TAttribute<FText> TextBinding = OPTIONAL_BINDING(FText, Text);

    DefaultStyle.SetFont(Font);
    DefaultStyle.SetColorAndOpacity(ColorAndOpacity);
    DefaultStyle.SetShadowColorAndOpacity(ShadowColorAndOpacity);
    DefaultStyle.SetShadowOffset(ShadowOffset);

    MyRichTextBlock->SetText(TextBinding);

}

#if WITH_EDITOR

// const FSlateBrush* URichTextBox::GetEditorIcon()
// {
//  return FUMGStyle::Get().GetBrush("Widget.RichTextBlock");
// }

const FText URichTextBox::GetPaletteCategory()
{
    return LOCTEXT("Common", "Common");
}

#endif

/////////////////////////////////////////////////////

#undef LOCTEXT_NAMESPACE