def urlFromValue(self, value):
variable = value.variable
origin = variable.attributes.get("origin", "")
if origin and QDir(origin).exists():
origin = QUrl.fromLocalFile(origin)
elif origin:
origin = QUrl(origin)
if not origin.scheme():
origin.setScheme("file")
else:
origin = QUrl("")
base = origin.path()
if base.strip() and not base.endswith("/"):
origin.setPath(base + "/")
name = QUrl(str(value))
url = origin.resolved(name)
if not url.scheme():
url.setScheme("file")
return url
