Read data from any URL not just files

[farling42]

When loading data into an external object (e.g. picture or image), allow the path to be any URL rather than just a local file.

[farling42]

See example in the QNetworkAccessManager class for how to download a file.

It sends a signal when the download is complete, so this will complicate generation of the RW export file.

[farling42]

Wait for the finished signal with something like:

QNetworkReply *reply = network_access_manager->get(QUrl(...));
while (!reply ->isFinished())
qApp->processEvents(QEventLoop::WaitForMoreEvents);
// check reply->error()

[farling42]

URL access implemented, including web redirects.