void FSpriteDetailsCustomization::BuildCollisionSection(IDetailCategoryBuilder& CollisionCategory, IDetailLayoutBuilder& DetailLayout)
{
TSharedPtr<IPropertyHandle> SpriteCollisionDomainProperty = DetailLayout.GetProperty(GET_MEMBER_NAME_CHECKED(UPaperSprite, SpriteCollisionDomain));
CollisionCategory.HeaderContent
(
SNew(SBox)
.HAlign(HAlign_Right)
[
SNew(SHorizontalBox)
+SHorizontalBox::Slot()
.Padding(FMargin(5.0f, 0.0f))
.AutoWidth()
[
SNew(STextBlock)
.Font(FEditorStyle::GetFontStyle("TinyText"))
.Text(this, &FSpriteDetailsCustomization::GetCollisionHeaderContentText, SpriteCollisionDomainProperty)
]
]
);
TAttribute<EVisibility> ParticipatesInPhysics = TAttribute<EVisibility>::Create(TAttribute<EVisibility>::FGetter::CreateSP( this, &FSpriteDetailsCustomization::AnyPhysicsMode, SpriteCollisionDomainProperty));
TAttribute<EVisibility> ParticipatesInPhysics3D = TAttribute<EVisibility>::Create(TAttribute<EVisibility>::FGetter::CreateSP(this, &FSpriteDetailsCustomization::PhysicsModeMatches, SpriteCollisionDomainProperty, ESpriteCollisionMode::Use3DPhysics));
TAttribute<EVisibility> HideWhenInRenderingMode = TAttribute<EVisibility>::Create(TAttribute<EVisibility>::FGetter::CreateSP(this, &FSpriteDetailsCustomization::EditorModeIsNot, ESpriteEditorMode::EditRenderingGeomMode));
TAttribute<EVisibility> ShowWhenInRenderingMode = TAttribute<EVisibility>::Create(TAttribute<EVisibility>::FGetter::CreateSP(this, &FSpriteDetailsCustomization::EditorModeMatches, ESpriteEditorMode::EditRenderingGeomMode));
static const FText EditCollisionInCollisionMode = LOCTEXT("CollisionPropertiesHiddenInRenderingMode", "Switch to 'Edit Collsion' mode\nto edit Collision settings");
CollisionCategory.AddCustomRow(EditCollisionInCollisionMode)
.Visibility(ShowWhenInRenderingMode)
.WholeRowContent()
.HAlign(HAlign_Center)
[
SNew(STextBlock)
.Font(DetailLayout.GetDetailFontItalic())
.Justification(ETextJustify::Center)
.Text(EditCollisionInCollisionMode)
];
CollisionCategory.AddProperty(SpriteCollisionDomainProperty).Visibility(HideWhenInRenderingMode);
// Add the collision geometry mode into the parent container (renamed)
{
// Restrict the diced value
TSharedPtr<FPropertyRestriction> PreventDicedRestriction = MakeShareable(new FPropertyRestriction(LOCTEXT("CollisionGeometryDoesNotSupportDiced", "Collision geometry can not be set to Diced")));
const UEnum* const SpritePolygonModeEnum = FindObject<UEnum>(ANY_PACKAGE, TEXT("ESpritePolygonMode"));
PreventDicedRestriction->AddDisabledValue(SpritePolygonModeEnum->GetNameStringByValue((uint8)ESpritePolygonMode::Diced));
// Find and add the property
const FString CollisionGeometryTypePropertyPath = FString::Printf(TEXT("%s.%s"), GET_MEMBER_NAME_STRING_CHECKED(UPaperSprite, CollisionGeometry), GET_MEMBER_NAME_STRING_CHECKED(FSpriteGeometryCollection, GeometryType));
TSharedPtr<IPropertyHandle> CollisionGeometryTypeProperty = DetailLayout.GetProperty(*CollisionGeometryTypePropertyPath);
CollisionGeometryTypeProperty->AddRestriction(PreventDicedRestriction.ToSharedRef());
CollisionCategory.AddProperty(CollisionGeometryTypeProperty)
.DisplayName(LOCTEXT("CollisionGeometryType", "Collision Geometry Type"))
.Visibility(ParticipatesInPhysics);
}
// Show the collision thickness only in 3D mode
CollisionCategory.AddProperty( DetailLayout.GetProperty(GET_MEMBER_NAME_CHECKED(UPaperSprite, CollisionThickness)) )
.Visibility(ParticipatesInPhysics3D);
// Show the default body instance (and only it) from the body setup (if it exists)
DetailLayout.HideProperty("BodySetup");
IDetailPropertyRow& BodySetupDefaultInstance = CollisionCategory.AddProperty("BodySetup.DefaultInstance");
TArray<TWeakObjectPtr<UObject>> SpritesBeingEdited;
DetailLayout.GetObjectsBeingCustomized(/*out*/ SpritesBeingEdited);
TArray<UObject*> BodySetupList;
for (auto WeakSpritePtr : SpritesBeingEdited)
{
if (UPaperSprite* Sprite = Cast<UPaperSprite>(WeakSpritePtr.Get()))
{
if (UBodySetup* BodySetup = Sprite->BodySetup)
{
BodySetupList.Add(BodySetup);
}
}
}
if (BodySetupList.Num() > 0)
{
IDetailPropertyRow* DefaultInstanceRow = CollisionCategory.AddExternalObjectProperty(BodySetupList, GET_MEMBER_NAME_CHECKED(UBodySetup, DefaultInstance));
if (DefaultInstanceRow != nullptr)
{
DefaultInstanceRow->Visibility(ParticipatesInPhysics);
}
}
// Show the collision geometry when not None
CollisionCategory.AddProperty(DetailLayout.GetProperty(GET_MEMBER_NAME_CHECKED(UPaperSprite, CollisionGeometry)))
.Visibility(ParticipatesInPhysics);
// Add the collision polygons into advanced (renamed)
const FString CollisionGeometryPolygonsPropertyPath = FString::Printf(TEXT("%s.%s"), GET_MEMBER_NAME_STRING_CHECKED(UPaperSprite, CollisionGeometry), GET_MEMBER_NAME_STRING_CHECKED(FSpriteGeometryCollection, Shapes));
CollisionCategory.AddProperty(DetailLayout.GetProperty(*CollisionGeometryPolygonsPropertyPath), EPropertyLocation::Advanced)
.DisplayName(LOCTEXT("CollisionShapes", "Collision Shapes"))
.Visibility(ParticipatesInPhysics);
}
