This widget wraps an existing QgsCodeEditor object in a widget which provides
additional standard functionality, currently a line-for-line port of the Python
console script editor search tools.
The caller must create an unparented QgsCodeEditor object
(or a subclass of QgsCodeEditor) first, and then construct a
QgsCodeEditorWidget passing this object to the constructor.
Ideally, this functionality would be added to the base QgsCodeEditor
class itself. But this is NOT possible without considerable API
breakage, as QgsCodeEditor currently inherits the QsciScintilla widget.
We cannot change QgsCodeEditor to inherit a generic QWidget
container containing a QsciScintilla widget + other widgets in
a layout without breaking API. I've added a cleanup note for
QGIS 4.0 here.
And make sipify handle this nicely. This means that all our non-flag
style enums correctly map across to IntFlag python enums on Qt 6,
fixing issues with negative enum values for these and providing
a better match for the original c++ enum.
