我无法突出显示菜单栏中的所选项目。我在代码版本中遇到问题。我只想用黑色突出显示当前选中的项目，并用绿色突出显示已选中的项目。在我的界面中突出显示名为Rice的图像。
我尝试添加此代码，但是由于出现更多错误，我仅获得了先前版本的代码。
import sys
from PyQt5 import QtGui, QtCore, QtWidgets
count = 0
width,height=1300,700
oneUnit = (width+height)/100
class Main(QtWidgets.QMainWindow):
def __init__(self):
QtWidgets.QMainWindow.__init__(self)
self.initUI()
def initUI(self):
# ---------Window settings --------------------------------
self.width,self.height = 1300,700
# //for using in full screen
# width = mainWindow.frameGeometry().width()
# height = mainWindow.frameGeometry().height()
self.setGeometry(0, 0,width,height)
self.setWindowTitle("Interface")
#---------content that are displayed in window
self.centralwidget = QtWidgets.QWidget()
self.userInfoArea = QtWidgets.QScrollArea(self.centralwidget)
self.userInfoArea.setGeometry(QtCore.QRect(1, 1, width*.7 -2,
height*.15 -2))
self.mainRight = QtWidgets.QScrollArea(self.centralwidget)
self.mainRight.setGeometry(QtCore.QRect(width*.7, 1, width*.3 -2 ,
height-2))
self.billingArea = QtWidgets.QScrollArea(self.centralwidget)
self.billingArea.setGeometry(QtCore.QRect(width*.7 , height*.15,
width*.3 -2, height*.65 -2))
self.mainArea = QtWidgets.QScrollArea(self.centralwidget)
self.mainArea.setGeometry(QtCore.QRect(1, height*.15 +1, width*.7 -2,
height*.85 -2))
self.tabWidget = QtWidgets.QTabWidget(self.centralwidget)
self.tabWidget.setGeometry(QtCore.QRect(1, height*.15 +1, width*.7
-3,
height*.85 -3))
self.lunchTab = QtWidgets.QWidget()
self.lunchTab.setObjectName("lunchTab")
self.tabWidget.addTab(self.lunchTab, "Lunch/Snacks")
self.drinkTab = QtWidgets.QWidget()
self.drinkTab.setObjectName("drinkTab")
self.tabWidget.addTab(self.drinkTab, "Drinks")
self.paybillBtn = QtWidgets.QPushButton("Pay Bill",self.mainRight)
self.showBtn(self.paybillBtn,self.mainRight,.65,.815,100,100)
#showingImage function contains images arranged in grid format
self.showingImage()
self.add = QtWidgets.QPushButton("Add",self.mainRight)
self.add.clicked.connect(self.Add)
self.add.setObjectName("add_button")
self.add.price = "Rs. 80"
self.add.quantity = 0
'''
button = self.mainRight.findChildren(QtWidgets.QPushButton)
print("list")
print(button[1].setObjectName("changed"))
print("lsit finis ")
'''
self.grid = QtWidgets.QVBoxLayout(self.billingArea)
self.grid.setGeometry(QtCore.QRect(150, 240, 350, 440))
self.verticalLayoutWidget = QtWidgets.QWidget(self.billingArea)
self.verticalLayoutWidget.setGeometry(QtCore.QRect(5,5, 380, 440))
self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")
self.verticalLayout_2 =
QtWidgets.QVBoxLayout(self.verticalLayoutWidget)
self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
self.verticalLayout_2.setObjectName("verticalLayout_2")
self.setCentralWidget(self.centralwidget)
self.show()
def showBtn(self,obj,frame,xPos,yPos,width,height):
mainR_width,mainR_height =
frame.frameGeometry().width(),frame.frameGeometry().height()
obj.setGeometry(QtCore.QRect(mainR_width*xPos, mainR_height*yPos,
width, height))
def Add(self):
global count
source = self.sender()
source.quantity += 1
frame = QtWidgets.QFrame(self.verticalLayoutWidget)
frame.setGeometry(QtCore.QRect(0, 0, 369, 39))
frame.setFrameShape(QtWidgets.QFrame.Box)
frame.setFrameShadow(QtWidgets.QFrame.Plain)
frame.setObjectName("frame")
minusButton = QtWidgets.QPushButton("-",frame)
minusButton.setGeometry(QtCore.QRect(160, 10, 21, 23))
minusButton.setObjectName("minusButton")
plusButton = QtWidgets.QPushButton("+",frame)
plusButton.setGeometry(QtCore.QRect(210, 10, 21, 23))
plusButton.setObjectName("plusButton")
deleteButton = QtWidgets.QPushButton("x",frame)
deleteButton.setGeometry(QtCore.QRect(330, 10, 21, 23))
deleteButton.setObjectName("deleteButton")
foodLabel = QtWidgets.QLabel(str(source.objectName()),frame)
foodLabel.setGeometry(QtCore.QRect(20, 10, 100, 13))
foodLabel.setObjectName("foodLabel")
priceLabel = QtWidgets.QLabel(str(source.price),frame)
priceLabel.setGeometry(QtCore.QRect(280, 10, 47, 13))
priceLabel.setObjectName("priceLabel")
quantityLabel = QtWidgets.QLabel(str(source.quantity),frame)
quantityLabel.setGeometry(QtCore.QRect(190, 10, 16, 16))
quantityLabel.setObjectName("quantityLabel")
'''
frames = self.verticalLayoutWidget.findChildren(QtWidgets.QFrame)
print("frames",frames,"frames")
for frame in frames:
labels = frame.findChildren(QtWidgets.Qlabel)
print(labels)
for label in labels:
if label.text() == source.objectName():
print("something")
'''
self.verticalLayout_2.addWidget(frame)
count += 1
def Button(self):
sender = self.sender()
print(sender.text())
def showingImage(self):
imgWi,imgHi=self.width*.12,self.height*.2
imgX, imgY = oneUnit, 2*oneUnit
self.image1 = QtWidgets.QPushButton("Rice Set", self.lunchTab)
self.image1.setGeometry(QtCore.QRect(imgX , imgY, imgWi,imgHi))
self.image1.setObjectName("Rice Set")
self.image1.price = "Rs. 80"
self.image1.quantity = 0
self.image1.clicked.connect(self.Add)
imgX = imgX + imgWi + oneUnit
self.image2 = QtWidgets.QPushButton("Curd", self.lunchTab)
self.image2.setGeometry(QtCore.QRect(imgX , imgY, imgWi,imgHi))
self.image2.setObjectName("Curd")
self.image2.price = "Rs. 25"
self.image2.quantity = 0
self.image2.clicked.connect(self.Add)
imgX = imgX + imgWi + oneUnit
self.image3 = QtWidgets.QPushButton("image3", self.lunchTab)
self.image3.setGeometry(QtCore.QRect(imgX , imgY, imgWi,imgHi))
imgX = imgX + imgWi + oneUnit
self.image4 = QtWidgets.QPushButton("image4", self.lunchTab)
self.image4.setGeometry(QtCore.QRect(imgX , imgY, imgWi,imgHi))
imgX = imgX + imgWi + oneUnit
self.image5 = QtWidgets.QPushButton("image5", self.lunchTab)
self.image5.setGeometry(QtCore.QRect(imgX , imgY, imgWi,imgHi))
imgX = oneUnit
imgY = imgY + imgHi + oneUnit*5
self.image6 = QtWidgets.QPushButton("image6", self.lunchTab)
self.image6.setGeometry(QtCore.QRect(imgX , imgY, imgWi,imgHi))
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
main = Main()
main.show()
sys.exit(app.exec_())
我希望选中的项目突出显示。
答案 0 :(得分：0)
只是为了很好地理解，您需要更改已经选择为绿色的按钮的颜色和当前选择为黑色的按钮？ 您可以为此使用CSS。单击对象时更改其名称。例如：
#element_selected {
background-color:green;
}
#current_element {
background-color:black;
}
感谢：
def setCSS(self,css_filename):
css = open(css_filename,'r')
self.setStyleSheet(css.read())
您将能够在您的主窗口中添加CSS。此外，如果使用此方法，则在更改一个按钮的对象名称后，需要刷新CSS。这就是为什么使用此方法很有用！