我是PyQt的新手，但在过去的几天里，我试图创建一个GUI，它有标签，TextEdit和按钮，当窗口大小移动（最小化或放大）时移动，我尝试这样做，但按钮卡在左上角，而标签和TextEdit完全没有出现在表单上，请帮忙。这是我的代码片段
import sys
from PyQt4 import QtGui, QtCore
class Window(QtGui.QMainWindow, QtGui.QWidget):
` def __init__(self):
super(Window, self).__init__()
self.setGeometry(50, 50, 500, 300)
self.setWindowTitle("PTE")
self.setWindowIcon(QtGui.QIcon('.png'))
self.center()
# Adding Menu to the GUI
quitAction = QtGui.QAction(QtGui.QIcon('exit.png'), "&Quit", self)
quitAction.setShortcut("Ctrl+Q")
quitAction.setStatusTip('Exit Application')
quitAction.triggered.connect(self.close_application)
undoAction = QtGui.QAction(QtGui.QIcon('undo.png'), "&Undo", self)
undoAction.setShortcut("Ctrl+Z")
undoAction.triggered.connect(self.close_application)
aboutAction = QtGui.QAction("&About PTE...", self)
self.statusBar()
#Actual Main Menu with options
mainMenu = self.menuBar()
fileMenu = mainMenu.addMenu('&File')
fileMenu.addAction(quitAction)
fileMenu = mainMenu.addMenu('&Edit')
fileMenu.addAction(undoAction)
fileMenu = mainMenu.addMenu('&Help')
fileMenu.addAction(aboutAction)
self.home()
#Centering Window on the screen
def center(self):
gui = self.frameGeometry()
cp = QtGui.QDesktopWidget().availableGeometry().center()
gui.moveCenter(cp)
self.move(gui.topLeft())
def home(self):
#Buttons
qbtn = QtGui.QPushButton('Quit', self)
qbtn.clicked.connect(self.close_application)
rbtn = QtGui.QPushButton("Run", self)
rbtn.clicked.connect(self.close_application)
hbox = QtGui.QHBoxLayout()
hbox.addStretch(1)
hbox.addWidget(qbtn)
hbox.addWidget(rbtn)
vbox = QtGui.QVBoxLayout()
vbox.addStretch(1)
vbox.addLayout(hbox)
self.setLayout(vbox)
self.show()
#Labels and TextBox
Intervals = QtGui.QLabel('Number of intervals (0<=20) :')
Timesteps = QtGui.QLabel('Number of time steps (<=1000) : ')
IntervalsEdit = QtGui.QLineEdit()
TimestepsEdit = QtGui.QLineEdit()
grid = QtGui.QGridLayout()
grid.setSpacing(2)
grid.addWidget(Intervals, 1, 0)
grid.addWidget(IntervalsEdit, 1, 1)
grid.addWidget(Timesteps, 2, 0)
grid.addWidget(TimestepsEdit, 2, 1)
self.setLayout(grid)
self.show()
#What to display when the app is closed
def close_application(self):
#Popup message before closing the application in Binary
choice = QtGui.QMessageBox.question(self, 'Message',"Are you sure you want to exit?",
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No )
if choice == QtGui.QMessageBox.Yes:
print(" Until Next Time")
sys.exit()
else:
pass
def run():
app = QtGui.QApplication(sys.argv)
GUI = Window()
sys.exit(app.exec_())
run()
答案 0 :(得分：0)
嘿，我修复了你的代码问题。在我的修复程序中，我将QGridLayout添加到QHBoxLayout。如果您希望网格位于其他位置，则可能需要将这两种布局嵌套在第3种布局中。
请注意，当您只能设置1个布局时，setLayout用于grid 和用于vbox。您也可以拨打show()两次，这是您不需要的。您还要向QVBoxLayout添加hbox，但不添加任何小部件。事实上，这是没用的。如果您希望hbox和grid垂直对齐，则需要vbox.addLayout(grid)和self.setLayout(vbox)。
import sys
from PyQt4 import QtGui, QtCore
class Window(QtGui.QMainWindow, QtGui.QWidget):
` def __init__(self):
super(Window, self).__init__()
self.setGeometry(50, 50, 500, 300)
self.setWindowTitle("PTE")
self.setWindowIcon(QtGui.QIcon('.png'))
self.center()
# Adding Menu to the GUI
quitAction = QtGui.QAction(QtGui.QIcon('exit.png'), "&Quit", self)
quitAction.setShortcut("Ctrl+Q")
quitAction.setStatusTip('Exit Application')
quitAction.triggered.connect(self.close_application)
undoAction = QtGui.QAction(QtGui.QIcon('undo.png'), "&Undo", self)
undoAction.setShortcut("Ctrl+Z")
undoAction.triggered.connect(self.close_application)
aboutAction = QtGui.QAction("&About PTE...", self)
self.statusBar()
#Actual Main Menu with options
mainMenu = self.menuBar()
fileMenu = mainMenu.addMenu('&File')
fileMenu.addAction(quitAction)
fileMenu = mainMenu.addMenu('&Edit')
fileMenu.addAction(undoAction)
fileMenu = mainMenu.addMenu('&Help')
fileMenu.addAction(aboutAction)
self.home()
#Centering Window on the screen
def center(self):
gui = self.frameGeometry()
cp = QtGui.QDesktopWidget().availableGeometry().center()
gui.moveCenter(cp)
self.move(gui.topLeft())
def home(self):
#Buttons
qbtn = QtGui.QPushButton('Quit', self)
qbtn.clicked.connect(self.close_application)
rbtn = QtGui.QPushButton("Run", self)
rbtn.clicked.connect(self.close_application)
hbox = QtGui.QHBoxLayout()
hbox.addStretch(1)
hbox.addWidget(qbtn)
hbox.addWidget(rbtn)
vbox = QtGui.QVBoxLayout()
vbox.addStretch(1)
vbox.addLayout(hbox)
#self.show() #this only needs to be called once
#Labels and TextBox
Intervals = QtGui.QLabel('Number of intervals (0<=20) :')
Timesteps = QtGui.QLabel('Number of time steps (<=1000) : ')
IntervalsEdit = QtGui.QLineEdit()
TimestepsEdit = QtGui.QLineEdit()
grid = QtGui.QGridLayout()
grid.setSpacing(2)
grid.addWidget(Intervals, 1, 0)
grid.addWidget(IntervalsEdit, 1, 1)
grid.addWidget(Timesteps, 2, 0)
grid.addWidget(TimestepsEdit, 2, 1)
hbox.addLayout(grid) #this will add the grid to the horizontal layout.
#if you want it to be vertcally aligned change this to vbox.addLayout(grid)...
#... and this to self.setLayout(vbox)
self.setLayout(hbox)
self.show()
#What to display when the app is closed
def close_application(self):
#Popup message before closing the application in Binary
choice = QtGui.QMessageBox.question(self, 'Message',"Are you sure you want to exit?",
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No )
if choice == QtGui.QMessageBox.Yes:
print(" Until Next Time")
sys.exit()
else:
pass