我正在用 Python 为大学项目创建一个 PyQt5 应用程序，该项目使用 QStackedLayout 使其成为单窗口应用程序，但是，我不知道如何在 Stacked 中嵌套 Stacked Widget小部件。
运行代码时(因问题而降级)，您可以看到主菜单中有一个QPushButton。单击它时，窗口会发生变化，其中包含一个 QListWidget。
我想要实现的是 QListWidget 右侧的 Stacked Widget，它会随着所选列表项的变化而变化。
编辑:有没有一种方法可以在另一个窗口所在的位置打开一个窗口？现在，只要我点击一个按钮，窗口就会在屏幕中间弹出。
在代码中，您可以看到我试图实现的部分，后面有注释字符。
代码:
import sys
from PyQt5.QtWidgets import (QApplication, QMainWindow,
QLabel, QPushButton, QWidget,
QStackedLayout, QListWidget)
from PyQt5.QtCore import QRect, Qt
class Ui(QWidget):
def setupUi(self, Main):
Main.setObjectName("Main")
Main.setFixedSize(900, 500)
self.width = 900
self.height = 500
self.setFixedSize(self.width, self.height)
'''MENU ON THE MAIN WINDOW'''
self.menu = QStackedLayout()
self. mainMenu = QWidget()
self.howToMenu = QWidget()
self. mainMenuUi()
self.howToMenuUi()
self.menu.addWidget(self. mainMenu)
self.menu.addWidget(self.howToMenu)
'''MENU ON THE HOWTO WINDOW'''
#self.howToMenuMenu = QStackedLayout()
#self.howToOverView = QWidget()
#self.howToLevel = QWidget()
#self.howToTapeMeasure = QWidget()
#self.howToTheodolite = QWidget()
#self. overViewUi()
#self. levelUi()
#self.tapeMeasureUi()
#self. theodoliteUi()
#self.howToMenuMenu.addWidget(self.howToOverView )
#self.howToMenuMenu.addWidget(self.howToLevel )
#self.howToMenuMenu.addWidget(self.howToTapeMeasure)
#self.howToMenuMenu.addWidget(self.howToTheodolite )
def mainMenuUi(self):
self.mainMenu.setFixedSize(self.width, self.height)
self.mainMenuText = QLabel(self.mainMenu)
self.mainMenuText.setGeometry(QRect(30, 120, 480, 200))
self.mainMenuText.setStyleSheet("font: 14pt Century Gothic")
self.mainMenuText.setAlignment(Qt.AlignLeading|Qt.AlignLeft|Qt.AlignTop)
self.mainMenuText.setText("Welcome to the Surveying Traverse Calculator!")
self.howToButton = QPushButton("HOW TO DO A TRAVERSE", self.mainMenu)
self.howToButton.setGeometry(140, 180, 200, 30)
def howToMenuUi(self):
self.howToMenu.setFixedSize(self.width, self.height)
self.menuButton1 = QPushButton("Back to main menu", self.howToMenu)
self.menuButton1.setGeometry(QRect(10, 10, 200, 30))
self.howToTitle = QLabel(self.howToMenu)
self.howToTitle.setGeometry(QRect(10, 50, self.width, 40))
self.howToTitle.setStyleSheet("font: 14pt Century Gothic")
self.howToTitle.setAlignment(Qt.AlignLeading|Qt.AlignLeft|Qt.AlignVCenter)
self.howToTitle.setText("How to Do a Traverse")
self.howToSteps = QListWidget(self.howToMenu)
self.howToSteps.setGeometry(QRect(10, 100, 200, 80))
self.howToSteps.insertItem(0, "OVERVIEW" )
self.howToSteps.insertItem(1, "LEVEL" )
self.howToSteps.insertItem(2, "TAPE MEASURE")
self.howToSteps.insertItem(3, "THEODOLITE" )
#def overViewUi(self):
#def levelUi(self):
#def tapeMeasureUi(self):
#def theodoliteUi(self)
class Main(QMainWindow, Ui):
def __init__(self):
super(Main, self).__init__()
self.setupUi(self)
self.menuButton1.clicked.connect(self. menuWindow)
self.howToButton.clicked.connect(self.howToWindow)
def menuWindow(self):
self.menu.setCurrentIndex(0)
def howToWindow(self):
self.menu.setCurrentIndex(1)
if __name__ == "__main__":
app = QApplication(sys.argv)
M = Main()
sys.exit(app.exec())
我该如何解决这个问题？
最佳答案
您可以在 QListWidget 的右侧添加一个 QStackedWidget 并使用 currentRowChanged 信号控制所选列表对象。我建议您使用 QHBoxLayout、QVBoxLayout 或 QGridLayout 进行布局管理。
import sys
from PyQt5.QtWidgets import (QApplication, QMainWindow,
QLabel, QPushButton, QWidget,
QStackedLayout, QListWidget,
QVBoxLayout, QStackedWidget,
QGridLayout)
from PyQt5.QtCore import QRect, Qt
class Ui(QWidget):
def setupUi(self, Main):
Main.setObjectName("Main")
Main.setFixedSize(900, 500)
self.width = 900
self.height = 500
self.setFixedSize(self.width, self.height)
'''MENU ON THE MAIN WINDOW'''
self.menu = QStackedLayout()
self.mainMenu = QWidget()
self.howToMenu = QWidget()
self.mainMenuUi()
self.howToMenuUi()
self.menu.addWidget(self.mainMenu)
self.menu.addWidget(self.howToMenu)
'''MENU ON THE HOWTO WINDOW'''
#self.howToMenuMenu = QStackedLayout()
#self.howToOverView = QWidget()
#self.howToLevel = QWidget()
#self.howToTapeMeasure = QWidget()
#self.howToTheodolite = QWidget()
#self. overViewUi()
#self. levelUi()
#self.tapeMeasureUi()
#self. theodoliteUi()
#self.howToMenuMenu.addWidget(self.howToOverView )
#self.howToMenuMenu.addWidget(self.howToLevel )
#self.howToMenuMenu.addWidget(self.howToTapeMeasure)
#self.howToMenuMenu.addWidget(self.howToTheodolite )
def mainMenuUi(self):
self.mainMenu.setFixedSize(self.width, self.height)
self.mainMenuText = QLabel(self.mainMenu)
self.mainMenuText.setGeometry(QRect(30, 120, 480, 200))
self.mainMenuText.setStyleSheet("font: 14pt Century Gothic")
self.mainMenuText.setAlignment(Qt.AlignLeading|Qt.AlignLeft|Qt.AlignTop)
self.mainMenuText.setText("Welcome to the Surveying Traverse Calculator!")
self.howToButton = QPushButton("HOW TO DO A TRAVERSE", self.mainMenu)
self.howToButton.setGeometry(140, 180, 200, 30)
def howToMenuUi(self):
self.howToMenu_layout = QGridLayout()
self.howToMenu.setFixedSize(self.width, self.height)
self.menuButton1 = QPushButton("Back to main menu")
self.menuButton1.setGeometry(QRect(10, 10, 200, 30))
self.howToTitle = QLabel()
self.howToTitle.setGeometry(QRect(10, 50, self.width, 40))
self.howToTitle.setStyleSheet("font: 14pt Century Gothic")
self.howToTitle.setAlignment(Qt.AlignLeading|Qt.AlignLeft|Qt.AlignVCenter)
self.howToTitle.setText("How to Do a Traverse")
self.howToSteps = QListWidget()
self.howToSteps.setGeometry(QRect(10, 100, 200, 80))
self.howToSteps.insertItem(0, "OVERVIEW" )
self.howToSteps.insertItem(1, "LEVEL" )
self.howToSteps.insertItem(2, "TAPE MEASURE")
self.howToSteps.insertItem(3, "THEODOLITE" )
self.howToSteps.currentRowChanged.connect(self.display_traverse)
self.overview_container = QWidget()
self.level_container = QWidget()
self.tape_measure_container = QWidget()
self.theodolite_container = QWidget()
self.overViewUi()
self.levelUi()
self.tapeMeasureUi()
self.theodoliteUi()
self.traverse_action = QStackedWidget()
self.traverse_action.addWidget(self.overview_container)
self.traverse_action.addWidget(self.level_container)
self.traverse_action.addWidget(self.tape_measure_container)
self.traverse_action.addWidget(self.theodolite_container)
self.traverse_action.setCurrentIndex(0)
self.howToMenu_left_layout = QVBoxLayout()
self.howToMenu_left_layout.addWidget(self.menuButton1)
self.howToMenu_left_layout.addWidget(self.howToTitle)
self.howToMenu_left_layout.addWidget(self.howToSteps)
self.howToMenu_layout.addLayout(self.howToMenu_left_layout,0,0,1,1)
self.howToMenu_layout.addWidget(self.traverse_action,0,1,1,1)
self.howToMenu.setLayout(self.howToMenu_layout)
def overViewUi(self):
self.overview_layout = QVBoxLayout()
self.overview_button = QPushButton('Overview')
self.overview_layout.addWidget(self.overview_button)
self.overview_container.setLayout(self.overview_layout)
def levelUi(self):
self.level_layout = QVBoxLayout()
self.level_button = QPushButton('Level')
self.level_layout.addWidget(self.level_button)
self.level_container.setLayout(self.level_layout)
def tapeMeasureUi(self):
self.tape_measure_layout = QVBoxLayout()
self.tape_measure_button = QPushButton('Tape measure')
self.tape_measure_layout.addWidget(self.tape_measure_button)
self.tape_measure_container.setLayout(self.tape_measure_layout)
def theodoliteUi(self):
self.theodolite_layout = QVBoxLayout()
self.theodolite_button = QPushButton('Theodolite')
self.theodolite_layout.addWidget(self.theodolite_button)
self.theodolite_container.setLayout(self.theodolite_layout)
def display_traverse(self, index):
self.traverse_action.setCurrentIndex(index)
class Main(QMainWindow, Ui):
def __init__(self):
super(Main, self).__init__()
self.setupUi(self)
self.menuButton1.clicked.connect(self.menuWindow)
self.howToButton.clicked.connect(self.howToWindow)
def menuWindow(self):
self.menu.setCurrentIndex(0)
def howToWindow(self):
self.menu.setCurrentIndex(1)
if __name__ == "__main__":
app = QApplication(sys.argv)
M = Main()
sys.exit(app.exec())
关于python - 如何在 PyQt5 中制作嵌套堆叠布局？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55910890/