FReply FCurveColorCustomization::OnCreateButtonClicked()
{
if (CurveWidget.IsValid())
{
FString DefaultAsset = FPackageName::GetLongPackagePath(Owner->GetOutermost()->GetName()) + TEXT("/") + Owner->GetName() + TEXT("_ExternalCurve");
TSharedRef<SDlgPickAssetPath> NewCurveDlg =
SNew(SDlgPickAssetPath)
.Title(LOCTEXT("NewCurveDialogTitle", "Choose Location for External Curve Asset"))
.DefaultAssetPath(FText::FromString(DefaultAsset));
if (NewCurveDlg->ShowModal() != EAppReturnType::Cancel)
{
FString Package(NewCurveDlg->GetFullAssetPath().ToString());
FString Name(NewCurveDlg->GetAssetName().ToString());
FString Group(TEXT(""));
// Find (or create!) the desired package for this object
UPackage* Pkg = CreatePackage(NULL, *Package);
UPackage* OutermostPkg = Pkg->GetOutermost();
TArray<UPackage*> TopLevelPackages;
TopLevelPackages.Add( OutermostPkg );
if (!PackageTools::HandleFullyLoadingPackages(TopLevelPackages, LOCTEXT("CreateANewObject", "Create a new object")))
{
// User aborted.
return FReply::Handled();
}
if (!PromptUserIfExistingObject(Name, Package, Group, Pkg))
{
return FReply::Handled();
}
// PromptUserIfExistingObject may have GCed and recreated our outermost package - re-acquire it here.
OutermostPkg = Pkg->GetOutermost();
// Create a new asset and set it as the external curve
FName AssetName = *Name;
UCurveLinearColor* NewCurve = Cast<UCurveLinearColor>(CurveWidget->CreateCurveObject(UCurveLinearColor::StaticClass(), Pkg, AssetName));
if( NewCurve )
{
// run through points of editor data and add to external curve
for (int32 Index = 0; Index < 4; Index++)
{
CopyCurveData(&RuntimeCurve->ColorCurves[Index], &NewCurve->FloatCurves[Index]);
}
// Set the new object as the sole selection.
USelection* SelectionSet = GEditor->GetSelectedObjects();
SelectionSet->DeselectAll();
SelectionSet->Select( NewCurve );
// Notify the asset registry
FAssetRegistryModule::AssetCreated(NewCurve);
// Mark the package dirty...
OutermostPkg->MarkPackageDirty();
// Make sure expected type of pointer passed to SetValue, so that it's not interpreted as a bool
ExternalCurveHandle->SetValue(NewCurve);
}
}
}
return FReply::Handled();
}
