Files
UnrealEngine/Engine/Source/Runtime/UMG/Private/Components/BorderSlot.cpp
2025-05-18 13:04:45 +08:00

135 lines
3.3 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "Components/BorderSlot.h"
#include "Widgets/SNullWidget.h"
#include "Widgets/Layout/SBorder.h"
#include "Components/Border.h"
#include "ObjectEditorUtils.h"
#include UE_INLINE_GENERATED_CPP_BY_NAME(BorderSlot)
/////////////////////////////////////////////////////
// UBorderSlot
UBorderSlot::UBorderSlot(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
{
PRAGMA_DISABLE_DEPRECATION_WARNINGS
Padding = FMargin(4.f, 2.f);
HorizontalAlignment = HAlign_Fill;
VerticalAlignment = VAlign_Fill;
PRAGMA_ENABLE_DEPRECATION_WARNINGS
}
void UBorderSlot::ReleaseSlateResources(bool bReleaseChildren)
{
Super::ReleaseSlateResources(bReleaseChildren);
Border.Reset();
}
void UBorderSlot::BuildSlot(TSharedRef<SBorder> InBorder)
{
Border = InBorder;
PRAGMA_DISABLE_DEPRECATION_WARNINGS
InBorder->SetPadding(Padding);
InBorder->SetHAlign(HorizontalAlignment);
InBorder->SetVAlign(VerticalAlignment);
PRAGMA_ENABLE_DEPRECATION_WARNINGS
InBorder->SetContent(Content ? Content->TakeWidget() : SNullWidget::NullWidget);
}
PRAGMA_DISABLE_DEPRECATION_WARNINGS
FMargin UBorderSlot::GetPadding() const
{
return Padding;
}
void UBorderSlot::SetPadding(FMargin InPadding)
{
Padding = InPadding;
CastChecked<UBorder>(Parent)->SetPadding(InPadding);
}
EHorizontalAlignment UBorderSlot::GetHorizontalAlignment() const
{
return HorizontalAlignment;
}
void UBorderSlot::SetHorizontalAlignment(EHorizontalAlignment InHorizontalAlignment)
{
HorizontalAlignment = InHorizontalAlignment;
CastChecked<UBorder>(Parent)->SetHorizontalAlignment(InHorizontalAlignment);
}
EVerticalAlignment UBorderSlot::GetVerticalAlignment() const
{
return VerticalAlignment;
}
void UBorderSlot::SetVerticalAlignment(EVerticalAlignment InVerticalAlignment)
{
VerticalAlignment = InVerticalAlignment;
CastChecked<UBorder>(Parent)->SetVerticalAlignment(InVerticalAlignment);
}
PRAGMA_ENABLE_DEPRECATION_WARNINGS
void UBorderSlot::SynchronizeProperties()
{
PRAGMA_DISABLE_DEPRECATION_WARNINGS
if ( Border.IsValid() )
{
SetPadding(Padding);
SetHorizontalAlignment(HorizontalAlignment);
SetVerticalAlignment(VerticalAlignment);
}
PRAGMA_ENABLE_DEPRECATION_WARNINGS
}
#if WITH_EDITOR
void UBorderSlot::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
{
Super::PostEditChangeProperty(PropertyChangedEvent);
static bool IsReentrant = false;
if ( !IsReentrant )
{
IsReentrant = true;
if ( PropertyChangedEvent.Property )
{
static const FName PaddingName("Padding");
static const FName HorizontalAlignmentName("HorizontalAlignment");
static const FName VerticalAlignmentName("VerticalAlignment");
FName PropertyName = PropertyChangedEvent.Property->GetFName();
if ( UBorder* ParentBorder = CastChecked<UBorder>(Parent) )
{
if ( PropertyName == PaddingName)
{
FObjectEditorUtils::MigratePropertyValue(this, PaddingName, ParentBorder, PaddingName);
}
else if ( PropertyName == HorizontalAlignmentName)
{
FObjectEditorUtils::MigratePropertyValue(this, HorizontalAlignmentName, ParentBorder, HorizontalAlignmentName);
}
else if ( PropertyName == VerticalAlignmentName)
{
FObjectEditorUtils::MigratePropertyValue(this, VerticalAlignmentName, ParentBorder, VerticalAlignmentName);
}
}
}
IsReentrant = false;
}
}
#endif