[英]QCheckBox state change PyQt4
我正在尝试在PyQt4中实现一个系统,取消选中一个复选框会调用函数disable_mod并检查它会调用enable_mod。 但即使状态正在改变复选框,也要调用它们开始的初始函数。 对于这种情况,如果单击已经选中的框,它将始终保持调用disable_mod函数! 我不明白为什么会这样? 你们能帮帮我一点吗? 这是我的代码:
from PyQt4 import QtCore, QtGui
from os import walk
from os.path import join
import sys
def list_files_regex(dir):
l = []
for (root, dirnames, filenames) in walk(dir):
for d in dirnames:
list_files_regex(join(root, d))
l.extend(filenames)
return l
directory = "J:/test_pack"
directory = join(directory, "/mods")
count = 0
for y in list_files_regex(directory):
print y
count += 1
print count
class ModEdit(QtGui.QMainWindow):
def __init__(self, title, icon, x, y, w, h):
super(ModEdit, self).__init__()
self.setWindowTitle(title)
self.setWindowIcon(QtGui.QIcon(icon))
self.setGeometry(x, y, w, h)
self.choices = []
self.init()
def init(self):
scroll_widget = QtGui.QScrollArea()
sub_widget = QtGui.QWidget()
v_layout = QtGui.QVBoxLayout()
for y in list_files_regex(directory):
tmp = QtGui.QCheckBox(y, self)
tmp.resize(tmp.sizeHint())
if tmp.text()[len(tmp.text()) - 8: len(tmp.text())] != 'disabled':
tmp.setChecked(True)
# if tmp.isChecked() == 0:
# tmp.stateChanged.connect(self.enable_mod)
# if tmp.isChecked():
# tmp.stateChanged.connect(self.disable_mod)
# v_layout.addWidget(tmp)
self.choices.append(tmp)
print self.choices
for choice in self.choices:
v_layout.addWidget(choice)
if choice.isChecked():
choice.stateChanged.connect(self.disable_mod)
else:
choice.stateChanged.connect(self.enable_mod)
sub_widget.setLayout(v_layout)
scroll_widget.setWidget(sub_widget)
self.setCentralWidget(scroll_widget)
self.show()
def enable_mod(self):
print "ENABLE_TEST"
print self.choices[1].isChecked()
def disable_mod(self):
print "DISABLE_TEST"
print self.choices[1].isChecked()
def test(self):
print 'test'
for ch in self.choices:
if ch.isChecked():
ch.stateChanged.connect(self.disable_mod)
else:
ch.stateChanged.connect(self.enable_mod)
class Rename(QtCore.QObject):
enable = QtCore.pyqtSignal
disable = QtCore.pyqtSignal
app = QtGui.QApplication(sys.argv)
ex = ModEdit("Minecraft ModEdit", "ModEdit.png", 64, 64, 640, 480)
sys.exit(app.exec_())
问题是,你只连接复选框stateChanged
初始化过程中一次信号。 在复选框状态发生变化后,您不会断开信号并将其重新连接到正确的插槽。
您需要将stateChanged
信号连接到中间插槽,该插槽将根据复选框状态决定调用哪个函数。 由于您在多个复选框中使用相同的插槽,因此最好也将复选框传递给插槽。
from functools import partial
def init(self):
...
for tmp in list_of_checkboxes:
enable_slot = partial(self.enable_mod, tmp)
disable_slot = partial(self.disable_mod, tmp)
tmp.stateChanged.connect(lambda x: enable_slot() if x else disable_slot())
def enable_mod(self, checkbox):
print "ENABLE_TEST"
print checkbox.isChecked()
def disable_mod(self, checkbox):
print "DISABLE_TEST"
print checkbox.isChecked()
或者,由于我们现在将复选框传递给插槽,您可以使用单个插槽并检查插槽内的复选框状态
def init(self):
...
for tmp in list_of_checkboxes:
slot = partial(self.enable_disable_mod, tmp)
tmp.stateChanged.connect(lambda x: slot())
def enable_disable_mod(self, checkbox):
if checkbox.isChecked():
...
else:
...
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