Files
UnrealEngine/Engine/Source/Editor/DataLayerEditor/Private/DataLayer/DataLayerOutlinerIsVisibleColumn.cpp
2025-05-18 13:04:45 +08:00

110 lines
3.3 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "DataLayerOutlinerIsVisibleColumn.h"
#include "DataLayerTreeItem.h"
#include "Engine/World.h"
#include "ISceneOutliner.h"
#include "ISceneOutlinerTreeItem.h"
#include "Math/Color.h"
#include "Math/ColorList.h"
#include "SlotBase.h"
#include "Styling/AppStyle.h"
#include "Styling/ISlateStyle.h"
#include "Styling/SlateColor.h"
#include "Templates/TypeHash.h"
#include "Types/SlateEnums.h"
#include "Widgets/DeclarativeSyntaxSupport.h"
#include "Widgets/SBoxPanel.h"
#include "Widgets/SNullWidget.h"
#include "Widgets/Views/STableRow.h"
#include "Widgets/Views/STreeView.h"
#include "WorldPartition/DataLayer/DataLayerInstance.h"
class SWidget;
struct FSlateBrush;
#define LOCTEXT_NAMESPACE "DataLayer"
FName FDataLayerOutlinerIsVisibleColumn::GetID()
{
static FName DataLayerOutlinerIsVisible("Data Layer Visibility");
return DataLayerOutlinerIsVisible;
}
/** Widget responsible for managing the visibility for a single item */
class SDataLayerVisibilityWidget : public SVisibilityWidget
{
protected:
virtual bool IsEnabled() const override
{
auto TreeItem = WeakTreeItem.Pin();
if (FDataLayerTreeItem* DataLayerTreeItem = TreeItem.IsValid() ? TreeItem->CastTo<FDataLayerTreeItem>() : nullptr)
{
const UDataLayerInstance* DataLayer = DataLayerTreeItem->GetDataLayer();
const UDataLayerInstance* ParentDataLayer = DataLayer ? DataLayer->GetParent() : nullptr;
const bool bIsParentVisible = ParentDataLayer ? ParentDataLayer->IsEffectiveVisible() : true;
return bIsParentVisible && DataLayer && DataLayer->GetWorld() && !DataLayer->GetWorld()->IsPlayInEditor() && DataLayer->IsEffectiveLoadedInEditor();
}
return false;
}
virtual const FSlateBrush* GetBrush() const override
{
bool bIsEffectiveVisible = false;
auto TreeItem = WeakTreeItem.Pin();
if (FDataLayerTreeItem* DataLayerTreeItem = TreeItem.IsValid() ? TreeItem->CastTo<FDataLayerTreeItem>() : nullptr)
{
UDataLayerInstance* DataLayer = DataLayerTreeItem->GetDataLayer();
bIsEffectiveVisible = DataLayer && DataLayer->IsEffectiveVisible();
}
if (bIsEffectiveVisible)
{
return IsHovered() ? VisibleHoveredBrush : VisibleNotHoveredBrush;
}
else
{
return IsHovered() ? NotVisibleHoveredBrush : NotVisibleNotHoveredBrush;
}
}
virtual FSlateColor GetForegroundColor() const override
{
if (IsEnabled())
{
auto Outliner = WeakOutliner.Pin();
auto TreeItem = WeakTreeItem.Pin();
const bool bIsSelected = Outliner->GetTree().IsItemSelected(TreeItem.ToSharedRef());
if (IsVisible() && !Row->IsHovered() && !bIsSelected)
{
return FLinearColor::Transparent;
}
return FAppStyle::Get().GetSlateColor("Colors.ForegroundHover");
}
else
{
return FLinearColor(FColorList::DimGrey);
}
}
virtual bool ShouldPropagateVisibilityChangeOnChildren() const { return false; }
};
const TSharedRef<SWidget> FDataLayerOutlinerIsVisibleColumn::ConstructRowWidget(FSceneOutlinerTreeItemRef TreeItem, const STableRow<FSceneOutlinerTreeItemPtr>& Row)
{
if (TreeItem->ShouldShowVisibilityState())
{
return SNew(SHorizontalBox)
+ SHorizontalBox::Slot()
.AutoWidth()
.VAlign(VAlign_Center)
[
SNew(SDataLayerVisibilityWidget, SharedThis(this), WeakOutliner, TreeItem, &Row)
];
}
return SNullWidget::NullWidget;
}
#undef LOCTEXT_NAMESPACE