void FStreamingLevelCollectionModel::SetStreamingLevelsClass_Executed(UClass* InClass)
{
// First prompt to save the selected levels, as changing the streaming method will unload/reload them
SaveSelectedLevels_Executed();
// Stash off a copy of the original array, as changing the streaming method can destroy the selection
FLevelModelList SelectedLevelsCopy = GetSelectedLevels();
// Apply the new streaming method to the selected levels
for (auto It = SelectedLevelsCopy.CreateIterator(); It; ++It)
{
TSharedPtr<FStreamingLevelModel> TargetModel = StaticCastSharedPtr<FStreamingLevelModel>(*It);
TargetModel->SetStreamingClass(InClass);
}
SetSelectedLevels(SelectedLevelsCopy);
// Force a cached level list rebuild
PopulateLevelsList();
}
void FLevelCollectionModel::UpdateTranslationDelta(const FLevelModelList& InLevelList, FVector2D InTranslationDelta, bool bBoundsSnapping, float InSnappingValue)
{
FLevelModelList EditableLevels;
// Only editable levels could be moved
for (auto It = InLevelList.CreateConstIterator(); It; ++It)
{
if ((*It)->IsEditable())
{
EditableLevels.Add(*It);
}
}
// Snap translation delta
if (InTranslationDelta != FVector2D::ZeroVector)
{
InTranslationDelta = SnapTranslationDelta(EditableLevels, InTranslationDelta, bBoundsSnapping, InSnappingValue);
}
for (auto It = EditableLevels.CreateIterator(); It; ++It)
{
(*It)->SetLevelTranslationDelta(InTranslationDelta);
}
}
