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from PyQt5 import QtWidgets, QtCore
from typing import List, Tuple
from model.tag import Tag
import db.tags
import database
class SelectionSignal(QtCore.QObject):
_signal = QtCore.pyqtSignal(list, name = 'selection')
def __init__(self):
QtCore.QObject.__init__(self)
def emit(self, tag_ids):
self._signal.emit(tag_ids)
def connect(self, f):
self._signal.connect(f)
def widget(parent, init_tags: List[int]) -> Tuple[QtWidgets.QWidget, SelectionSignal]:
widget = QtWidgets.QWidget(parent)
signal = SelectionSignal()
layout = QtWidgets.QVBoxLayout(widget)
widget.setLayout(layout)
layout.addWidget(QtWidgets.QLabel('Tags'))
list_widget = QtWidgets.QListWidget()
list_widget.setSelectionMode(QtWidgets.QAbstractItemView.MultiSelection)
layout.addWidget(list_widget)
tags = db.tags.get(database.cursor())
for tag in tags:
item = QtWidgets.QListWidgetItem(tag.name)
list_widget.addItem(item)
if tag.id in init_tags:
item.setSelected(True)
def on_item_selection_changed():
tag_texts = [item.text() for item in list_widget.selectedItems()]
signal.emit([tag.id for tag in tags if tag.name in tag_texts])
list_widget.itemSelectionChanged.connect(on_item_selection_changed)
return (widget, signal)
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