/**
* Check if the rebin and unbin buttons should be visible
* Note that for a rebin button to be visible there may be no
* MDHisto workspaces present, yet MDHisto workspaces which result from
* rebinning within the VSI are allowed.
*/
void StandardView::setRebinAndUnbinButtons() {
unsigned int numberOfInternallyRebinnedWorkspaces = 0;
unsigned int numberOfTrueMDHistoWorkspaces = 0;
unsigned int numberOfPeakWorkspaces = 0;
pqServer *server = pqActiveObjects::instance().activeServer();
pqServerManagerModel *smModel =
pqApplicationCore::instance()->getServerManagerModel();
const QList<pqPipelineSource *> sources =
smModel->findItems<pqPipelineSource *>(server);
foreach (pqPipelineSource *source, sources) {
if (isInternallyRebinnedWorkspace(source)) {
++numberOfInternallyRebinnedWorkspaces;
} else if (isMDHistoWorkspace(source)) {
++numberOfTrueMDHistoWorkspaces;
} else if (isPeaksWorkspace(source)) {
++numberOfPeakWorkspaces;
}
}
// If there are any true MDHisto workspaces then the rebin button should be
// disabled
bool allowRebinning =
numberOfTrueMDHistoWorkspaces > 0 || numberOfPeakWorkspaces > 0;
this->allowRebinningOptions(allowRebinning);
// If there are no internally rebinned workspaces the button should be
// disabled.
allowUnbinOption(numberOfInternallyRebinnedWorkspaces > 0);
}
/**
* Listen for a change of the active source in order to check if the
* active source is an MDEventSource for which we allow rebinning.
*/
void StandardView::activeSourceChangeListener(pqPipelineSource* source)
{
// If there is no active source, then we do not allow rebinning
if (!source)
{
this->allowRebinningOptions(false);
this->m_unbinAction->setEnabled(false);
return;
}
// If it is a filter work your way down
pqPipelineSource* localSource = source;
pqPipelineFilter* filter = qobject_cast<pqPipelineFilter*>(localSource);
while(filter)
{
localSource = filter->getInput(0);
filter = qobject_cast<pqPipelineFilter*>(localSource);
}
// Important to first check for an internally rebinned source, then for MDEvent source,
// since the internally rebinned source may be an MDEventSource.
std::string workspaceType(localSource->getProxy()->GetXMLName());
// Check if the source is associated with a workspace which was internally rebinned by the VSI.
// In this case the user can further rebin or unbin the source.
if (isInternallyRebinnedWorkspace(localSource))
{
this->allowRebinningOptions(true);
this->allowUnbinOption(true);
}
// Check if we are dealing with a MDEvent workspace. In this case we allow rebinning, but
// unbinning will not make a lot of sense.
else if (workspaceType.find("MDEW Source") != std::string::npos)
{
this->allowRebinningOptions(true);
this->allowUnbinOption(false);
}
// Otherwise we must be dealing with either a MDHIsto or PeaksWorkspace
// which cannot be neither rebinned nor unbinned.
else
{
this->allowRebinningOptions(false);
this->allowUnbinOption(false);
}
}
