UnrealEngineUWP/Engine/Source/Runtime/UMG/Private/Components/ScaleBox.cpp

// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.

#include "UMGPrivatePCH.h"

#define LOCTEXT_NAMESPACE "UMG"

/////////////////////////////////////////////////////
// UScaleBox

UScaleBox::UScaleBox(const FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
	bIsVariable = false;

	StretchDirection = EStretchDirection::Both;
	Stretch = EStretch::ScaleToFit;
}

void UScaleBox::ReleaseNativeWidget()
{
	Super::ReleaseNativeWidget();

	MyScaleBox.Reset();
}

TSharedRef<SWidget> UScaleBox::RebuildWidget()
{
	MyScaleBox = SNew(SScaleBox);
	
	if ( GetChildrenCount() > 0 )
	{
		Cast<UScaleBoxSlot>(GetContentSlot())->BuildSlot(MyScaleBox.ToSharedRef());
	}

	return MyScaleBox.ToSharedRef();
}

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

	MyScaleBox->SetStretchDirection(StretchDirection);
	MyScaleBox->SetStretch(Stretch);
}

UClass* UScaleBox::GetSlotClass() const
{
	return UScaleBoxSlot::StaticClass();
}

void UScaleBox::OnSlotAdded(UPanelSlot* Slot)
{
	// Add the child to the live slot if it already exists
	if ( MyScaleBox.IsValid() )
	{
		Cast<UScaleBoxSlot>(Slot)->BuildSlot(MyScaleBox.ToSharedRef());
	}
}

void UScaleBox::OnSlotRemoved(UPanelSlot* Slot)
{
	// Remove the widget from the live slot if it exists.
	if ( MyScaleBox.IsValid() )
	{
		MyScaleBox->SetContent(SNullWidget::NullWidget);
	}
}

#if WITH_EDITOR

const FSlateBrush* UScaleBox::GetEditorIcon()
{
	return FUMGStyle::Get().GetBrush("Widget.ScaleBox");
}

const FText UScaleBox::GetPaletteCategory()
{
	return LOCTEXT("Panel", "Panel");
}

#endif

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

#undef LOCTEXT_NAMESPACE