Re #22263

- Added definition in C++.
- Renamed deadCell constant to g_deadCell.
- Exposed method in sip files.

Re #22263

- Added corresponding documentation.

Re #22263

- Reorgranised JobTreeView page.
- Added documentation + example for filtering.
- Moved RowPredicate into its own header.

Re #22263

Re #22263

- Replaced usage of missing std::equal on RHEL with
  boost::algorithm::equal.
- A signed-unsigned comparison.
- A use of DLLExport on a template in a header.
- Removed un-used members from ExtractSubtrees

Re #22263

Re #22263

Re #22263

- Moved call to enableFiltering into constructor of JobTreeView.
- Exposed the RowLocation operators through SIP by making them member
  functions.
- Should do as above for Row and Cell in later commits.

Re #22263

- Added notifyResetFilter, called whenever the filter is reset by the
  view.
- Renamed borderTransparency to borderOpacity to better reflect the
  fact that a borderTransparency of 0 is fully transparent.
- Reimplemented RegexFilter in a more flexible and consise way.

Re #22263

- Added the aforementioned properties to the Cell class.
- Added mechanics to CellStandardItem functions to extract and apply
  these properties.
- Fixed a bug in RowLocationAdapter whereby rows on the path were
  required to have at least as many columns as the column of the index
  being fetched.
- Exposed this new functionality to python
- Experimented with these properties in batch_widget_gui.py

Re #22263

- Fixed copy-paste border colour problem.
  - Made transparency stored separately from the colour in the Cell class.
- Moved padding functionality into C++ JobTreeView will now pad rows
  shorter than the model column count with 'dead' cells.

Re #22263

- Moved methods for operating on QStandardItem/Cell objects + custom role
  enum to CellStandardItem.h/cpp.
- Increased CellDelegate's awareness of custom roles.
- Changed storage-duration of QtFilterLeafNodes to automatic.
- Used new functionality to perform padding of group rows - this
  functionality should be moved into JobTreeView in a later commit.

Re #22263

- Added Cell class to store the modifiable cell properties aside from the text e.g.
  borderThickness, isEditable.
- Replaced usages of std::string in place of cell in JobTreeView and
  QtStandardItemTreeAdapter functions.
- Adjusted BuildSubtrees to account for this.
- Started implementing some of the updated api for
  QtStandardItemTreeAdapter.

Re #22263

- Used QtFilterLeafNodes as a proxy model over the real model.
- Added strongly typed QModelIndexes based on StrictModelIndex template.
- Added methods and refactored code to handle conversions between
  different model index spaces correctly - strict QModelIndex classes
  help to enforce this.
- Refactored QtStandardItemTreeAdapter to be a set of methods rather
  than a class - a different logical grouping may follow.
- Added filterRowsBy methods to set the filter predicate and
  resetFilter method to switch to a true-predicate.
- Exposed this filtering functionality to python.
- Split QtTreeCursorNavigation into additional header QtBasicNavigation.
- Moved RowLocation -> QModelIndex and QModelIndex -> RowLocation
  conversion logic into RowLocationAdapter class to allow re-use in other
  contexts such as QtFilterLeafNodes.

- Added BuildSubtreeTest - a replacement for the messy version in JobTreeView.
- Added additional methods for dealing with Subtree objects.
- Modified interface of the copy and paste signals presenters must now
  get selection explicitly.
- Exposed Row class to python.

Re #22263

Updated implementation of replaceRows.

Re #22263

This required making JobTreeView aware of the editor status.
When a presenter is notified of a row insertion it needs to be able
to remove the inserted row if the row is greater than the maximum
depth for example.

However after inserting a new row we natuarally open the editor at it
and set it as the current index. If you try to remove the row while
it is the current index and the editor is open then the row is
silently not removed.

Before attempting to remove the row we try detect if the removal would
be inefective and if so, shift the current index somewhere else, if t
here is nowhere else to move it then we thow an exception.

This commit therefore makes it impossible to delete all rows,
something we may need to fix in a future commit.

Re #22263

- Added a QStyledItemDelagate.
- Created and set inside JobTreeView.

Re #22263

- Track last edited cell + overload commitData to enable user
  updates to be distinguished from presenter updates and only
  dish out notifications for the former.
- Add copy notification method to JobTreeViewSubscriber interface.
- Add new signal to JobTreeViewSignalAdapter.
- Update SIP bindings.
- Add and expose depth() method on RowLocation.

Re #22263

- Added default constructor.
- Registered type using qMetaType.
- Added support methods to TreeAdapter.
- Implemented textAt, rowTextAt, setCellText etc.

Re #22263

- Added delete key to trigger removal.
- Added operators to RowLocation to enable sorting + future unit
testing.
- Renamed methods in JobTreeView subscriber interface.
- Used RowLocation lexicographical sorting to enable safe-multidelete.
- Fixed infinate loop in implementation of rowLocationAt.

Re #22263

- Added a modified version of JobTreeView from the
  batch_widget_prototype branch
- Refactored out QtStandardItemTreeAdapter which can be tested
  separately from the view.
- Also transfered QtTreeCursorNavigation, the class used to implement
  the tab based navigation.

Re #22263