moment/harmonyqml/backend/model/list_model_map.py
2019-05-09 13:55:02 -04:00

59 lines
1.3 KiB
Python

from typing import Any, Callable, DefaultDict, MutableSequence
from PyQt5.QtCore import QObject, pyqtSlot
from .list_model import ListModel
class ListModelMap(QObject):
def __init__(self,
models_container: Callable[..., MutableSequence] = list,
parent: QObject = None) -> None:
super().__init__(parent)
# Set the parent to prevent item garbage-collection on the C++ side
self.dict: DefaultDict[Any, ListModel] = \
DefaultDict(
lambda: ListModel(container=models_container, parent=self)
)
def __repr__(self) -> str:
return "%s(%r)" % (type(self).__name__, self.dict)
def __getitem__(self, key) -> ListModel:
return self.dict[key]
def __setitem__(self, key, value: ListModel) -> None:
value.setParent(self)
self.dict[key] = value
def __detitem__(self, key) -> None:
del self.dict[key]
def __iter__(self):
return iter(self.dict)
def __len__(self) -> int:
return len(self.dict)
@pyqtSlot(result=str)
def repr(self) -> str:
return self.__repr__()
@pyqtSlot(str, result="QVariant")
def get(self, key) -> ListModel:
return self.dict[key]
@pyqtSlot(str, result=bool)
def has(self, key) -> bool:
return key in self.dict