[InteractiveSegmentation] Progress bar should reset after running and unloading data

[ashishsingh18]

[ashishsingh18]

This might be the case with other plugins as well...

[dboun]

You're right. It generally should reset when both the following are true at the same time:

• There is not a running calculation
• The set of the loaded non-label images change (either new images are added, or existing ones are removed)

I think this can be done in

  // reimplemented from QmitkAbstractView
  void NodeAdded(const mitk::DataNode* node) override;

  // reimplemented from QmitkAbstractView
  void NodeRemoved(const mitk::DataNode* node) override;

which are part of QmitkAbstractView or mitk::ILifecycleAwarePart