void VolumeURLProperty::loadVolume() throw (tgt::FileException, std::bad_alloc){
std::string url = get();
if (url.empty()) {
LWARNING("loadVolume(): empty URL");
return;
}
ProgressBar* progressBar = getProgressBar();
if (progressBar) {
progressBar->setTitle("Loading volume");
progressBar->setProgressMessage("Loading volume ...");
}
VolumeSerializerPopulator serializerPopulator(progressBar);
VolumeList* volumeList = serializerPopulator.getVolumeSerializer()->read(url);
if (progressBar)
progressBar->hide();
if (volumeList && !volumeList->empty()) {
VolumeBase* handle = volumeList->first();
tgtAssert(handle, "No handle");
setVolume(static_cast<Volume*>(handle));
// delete superfluous volumes
if (volumeList->size() > 1) {
LWARNING("More than one volume loaded from file: " + url + ". Discarding surplus volumes!");
for (size_t i=1; i<volumeList->size(); i++)
delete volumeList->at(i);
}
// property does take ownership of loaded handles
volumeOwner_ = true;
}
delete volumeList;
}
