我正在设计一个结帐窗口，用户在其中单击按钮以添加产品，当按下按钮时，需要使用篮子中的当前项目更新布局，我正在使用带有拆分器的窗口&我想要右侧每次按下按钮时都会更新，但出于某种原因！它不会更新，但产品会更新到购物篮字典中！
class Window(QtGui.QWidget):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.basket = []
vbox = QtGui.QVBoxLayout(self)
self.topleft = QtGui.QFrame(self)
self.topleft.setFrameShape(QtGui.QFrame.StyledPanel)
self.topleftfill()
self.right = QtGui.QFrame(self)
self.right.setFrameShape(QtGui.QFrame.StyledPanel)
self.rightfill()
self.bottomleft = QtGui.QFrame(self)
self.bottomleft.setFrameShape(QtGui.QFrame.StyledPanel)
self.bottomleftfill()
splitter1 = QtGui.QSplitter(QtCore.Qt.Vertical)
splitter1.addWidget(self.topleft)
splitter1.addWidget(self.bottomleft)
splitter2 = QtGui.QSplitter(QtCore.Qt.Horizontal)
splitter2.addWidget(splitter1)
splitter2.addWidget(self.right)
vbox.addWidget(splitter2)
self.setLayout(vbox)
splitter1.setSizes([100,620])
splitter2.setSizes([960,360])
def topleftfill(self):
lineEdit = QtGui.QLineEdit()
label = QtGui.QLabel('Search')
label.setAlignment(QtCore.Qt.AlignCenter)
font = QtGui.QFont("Unique", 50, QtGui.QFont.Bold)
label.setFont(font)
layout = QtGui.QVBoxLayout()
layout.addWidget(label)
layout.addWidget(lineEdit)
self.topleft.setLayout(layout)
def bottomleftfill(self):
def producttypes():
with sqlite3.connect('Example.db') as db:
cursor = db.cursor()
cursor.execute('select Type from ProductType')
result = cursor.fetchall()
return result
def typeitems(itemtype):
with sqlite3.connect('Example.db') as db:
cursor = db.cursor()
cursor.execute('select ProductTypeID from ProductType where Type=?', (itemtype,))
typeid = cursor.fetchall()
cursor.execute('select Name from Product where ProductTypeID=?',(typeid[0][0],))
items = cursor.fetchall()
return items
typetab = QtGui.QTabWidget(self)
types = producttypes()
for name in types:
tab = QtGui.QWidget()
typetab.addTab(tab, name[0])
products = typeitems(name[0])
typetablayout = QtGui.QGridLayout()
width = 5
length = math.ceil(len(products)/5)
item = 0
for row in range(length):
for column in range(width):
try:
button = QtGui.QPushButton(products[item][0])
button.setObjectName(products[item][0])
button.clicked.connect(self.addProduct)
typetablayout.addWidget(button, row, column)
item += 1
except IndexError:
break
tab.setLayout(typetablayout)
layout = QtGui.QVBoxLayout()
layout.addWidget(typetab)
self.bottomleft.setLayout(layout)
def rightfill(self):
label = QtGui.QLabel('Basket')
label.setAlignment(QtCore.Qt.AlignCenter)
font = QtGui.QFont("Unique", 25, QtGui.QFont.Bold)
label.setFont(font)
row = 0
itemslayout = QtGui.QGridLayout()
for item in self.basket:
label = QtGui.QLabel(item)
print(item)
itemslayout.addWidget(label, row, 3)
row += 1
layout = QtGui.QVBoxLayout()
layout.addWidget(label)
layout.addLayout(itemslayout)
self.right.setLayout(layout)
def addProduct(self):
product = self.sender().objectName()
self.basket.append(product)
basket = collections.Counter()
for item in self.basket:
basket[item] += 1
self.rightfill()