最近用pyqt5寫了一個客戶端工具,需要到下拉核取方塊的效果,但是自帶的沒有提供,經網上查到以下ComboCheckBox
類可以實現;
主要是下拉單選和核取方塊的結合,繼承了 QComboBox
類,例項化 ComboCheckBox
即可實現下拉核取方塊。
程式碼如下:
from PyQt5.QtWidgets import QComboBox, QLineEdit, QListWidget, QCheckBox, QListWidgetItem
class ComboCheckBox(QComboBox):
def loadItems(self, items):
self.items = items
self.items.insert(0, '全部')
self.row_num = len(self.items)
self.Selectedrow_num = 0
self.qCheckBox = []
self.qLineEdit = QLineEdit()
self.qLineEdit.setReadOnly(True)
self.qListWidget = QListWidget()
self.addQCheckBox(0)
self.qCheckBox[0].stateChanged.connect(self.All)
for i in range(0, self.row_num):
self.addQCheckBox(i)
self.qCheckBox[i].stateChanged.connect(self.showMessage)
self.setModel(self.qListWidget.model())
self.setView(self.qListWidget)
self.setLineEdit(self.qLineEdit)
# self.qLineEdit.textChanged.connect(self.printResults)
def showPopup(self):
# 點選下拉的時候,重新重新整理資料,避免資料多的時候,下拉顯示不完整的問題
self.loadItems(items=self.items[1:])
return QComboBox.showPopup(self)
def printResults(self):
list = self.Selectlist()
print(list)
def addQCheckBox(self, i):
self.qCheckBox.append(QCheckBox())
qItem = QListWidgetItem(self.qListWidget)
self.qCheckBox[i].setText(self.items[i])
self.qListWidget.setItemWidget(qItem, self.qCheckBox[i])
def Selectlist(self):
Outputlist = []
for i in range(1, self.row_num):
if self.qCheckBox[i].isChecked() == True:
Outputlist.append(self.qCheckBox[i].text())
self.Selectedrow_num = len(Outputlist)
return Outputlist
def showMessage(self):
Outputlist = self.Selectlist()
self.qLineEdit.setReadOnly(False)
self.qLineEdit.clear()
show = ';'.join(Outputlist)
if self.Selectedrow_num == 0:
self.qCheckBox[0].setCheckState(0)
elif self.Selectedrow_num == self.row_num - 1:
self.qCheckBox[0].setCheckState(2)
else:
self.qCheckBox[0].setCheckState(1)
self.qLineEdit.setText(show)
self.qLineEdit.setReadOnly(True)
def All(self, zhuangtai):
if zhuangtai == 2:
for i in range(1, self.row_num):
self.qCheckBox[i].setChecked(True)
elif zhuangtai == 1:
if self.Selectedrow_num == 0:
self.qCheckBox[0].setCheckState(2)
elif zhuangtai == 0:
self.clear()
def clear(self):
for i in range(self.row_num):
self.qCheckBox[i].setChecked(False)
def currentText(self):
text = QComboBox.currentText(self).split(';')
if text.__len__() == 1:
if not text[0]:
return None
else:
return "('{}')".format("','".join(text))
else:
return "('{}')".format("','".join(text))
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