How to use

getApplicationPage

method

in

org.esa.beam.framework.ui.AppContext

private SelectionManager getSelectionManager() {
  // on first access the selection manager is initialised
  // this can not be done in the constructor because, at the time it is called, the AppContext is not
  // fully initialised
  if (selectionManager == null) {
    selectionManager = getAppContext().getApplicationPage().getSelectionManager();
    // todo - this is needed to consistently update the enable state of the action
    // todo - probably a call to updateChange() is missing in the framework at the time the menu gets visible
    selectionManager.addSelectionChangeListener(this);
  }
  return selectionManager;
}

private SelectionManager getSelectionManager() {
  if (selectionManager == null) {
    selectionManager = getAppContext().getApplicationPage().getSelectionManager();
    selectionManager.addSelectionChangeListener(this);
  }
  return selectionManager;
}