我遇到.deleter
的问题,我尝试删除的值仅在第一次尝试时有效。
要复制:
i.myDict
返回正确的{u'GrpB': set([u'Alice'])})
i.myDict
返回正确的{u'GrpB': set([u'Alice', 'Phan])})
i.myDict
返回{u'GrpB': set([u'Alice', 'Phan])})
,这在我期望{u'GrpB': set([u'Alice'])})
的地方不正确如果我关闭工具并重做最后一步,只有i.myDict
会正确返回,但是我应该检查新选项,第三次i.myDict
会再次返回不正确的结果。 / p>
肯定会调用deleter
,但似乎只执行一次真正的删除。我在这里想念东西吗?
class SubMenuWindow(QtGui.QWidget):
def __init__(self, menu_items, parent=None, callback=None):
super(SubMenuWindow, self).__init__(parent)
self.callback = callback
self.my_lyt = QtGui.QVBoxLayout()
self.checked_options = []
self.sel = defaultdict(set)
for menu_name, submenu_name in menu_items.items():
# Set the main menu item name
self.groupbox = QtGui.QGroupBox(self)
self.groupbox.setTitle(menu_name)
self.groupbox.setLayout(QtGui.QVBoxLayout())
self.my_lyt.addWidget(self.groupbox)
if submenu_name:
sub_txt = [action for action in submenu_name]
for s in sub_txt:
sub_chk = QtGui.QCheckBox(s)
self.checked_options.append(sub_chk)
self.groupbox.layout().addWidget(sub_chk)
apply_tag_btn = QtGui.QPushButton('Apply to selected item')
apply_tag_btn.clicked.connect(self.get_checked_options)
self.my_lyt.addWidget(apply_tag_btn)
self.my_lyt.addStretch()
self.setLayout(self.my_lyt)
self.show()
def get_checked_options(self):
for chk in self.checked_options:
if chk.isChecked():
print 'Checked - {0}, Parent - {1}'.format(chk.text(), chk.parent().title())
self.sel[chk.parent().title()].add(chk.text())
if self.callback:
self.callback()
class MainWin(QtGui.QWidget):
def __init__(self, parent=None):
super(MainWin, self).__init__(parent)
self.my_dict = {}
btnA = QtGui.QPushButton('Click Me')
btnA.clicked.connect(self.get_options)
btnB = QtGui.QPushButton('Get results')
btnB.clicked.connect(self.get_results)
layout = QtGui.QVBoxLayout()
layout.addWidget(btnA)
layout.addWidget(btnB)
self.setLayout(layout)
def get_options(self):
sample_dict = {'GrpA' : ['John', 'Zack'], 'GrpB' : ['Alice', 'Phan']}
self.subWin = SubMenuWindow(sample_dict, callback=self.get_results)
def get_results(self):
i = MyDict()
# delete any existing values
del (i.myDict)
# append the new values
i.myDict = self.subWin.sel
print 'current myDict values : ', i.myDict
# If I select 'GrpB - Alice'
# i.myDict is `{u'GrpB': set([u'Alice'])})` # correct
# If I select 'GrpB - Alice' and 'GrpB - Phan'
# i.myDict is `{u'GrpB': set([u'Alice', 'Phan'])})` # correct
# If I re-select 'GrpB - Alice'
# i.myDict is `{u'GrpB': set([u'Alice', 'Phan'])})` # in-correct
class MyDict(QtCore.QObject):
def __init__(self):
self._myDict = None
@property
def myDict(self):
return self._myDict
@myDict.setter
def myDict(self, value):
self._myDict = value
@myDict.deleter
def myDict(self):
del(self._myDict)