class ReferenceWidget:
"Dropdown for choosing the reference"
__files: FileList
__theme: ReferenceWidgetTheme
__widget: Dropdown
def __init__(self, ctrl, model) -> None:
self.__theme = ctrl.theme.swapmodels(ReferenceWidgetTheme())
self.__model = model
self.__files = FileList(ctrl)
def addtodoc(self, mainview, ctrl, *_) -> List[Widget]:
"creates the widget"
self.__widget = Dropdown(name='HS:reference',
width=self.__theme.width,
height=self.__theme.height,
**self.__data())
@mainview.actionifactive(ctrl)
def _py_cb(new):
inew = int(new.item)
val = None if inew < 0 else [i for _, i in self.__files()][inew]
self.__model.fittoreference.reference = val
def _observe(old=None, **_):
if 'reference' in old and mainview.isactive():
data = self.__data()
mainview.calllater(lambda: self.__widget.update(**data))
ctrl.display.observe(FitToReferenceStore().name, _observe)
self.__widget.on_click(_py_cb)
return [self.__widget]
def reset(self, resets):
"updates the widget"
resets[self.__widget].update(**self.__data())
@property
def widget(self):
"returns the widget"
return self.__widget
def __data(self) -> dict:
lst = list(self.__files())
menu: list = [(j, str(i)) for i, j in enumerate(i for i, _ in lst)]
menu += [None, (self.__theme.title, '-1')]
key = self.__model.fittoreference.reference
index = -1 if key is None else [i for _, i in lst].index(key)
return dict(menu=menu, label=menu[index][0], value=str(index))
