PyQt:如何创建可滚动的 window
PyQt: How to create a scrollable window
我认为在 PyQt 中创建一个可滚动的 window 应该容易得多。
我有一个超出 window 的标签列表,我想向下滚动以查看它们。目前代码没有给我错误,但是 window 没有出现:
class Example(QWidget):
def __init__(self):
super().__init__()
layout = QVBoxLayout()
lbl_arr = makeLabelArr()
for i in range(1,8):
qb = lbl_arr[i]
# qb.setFixedWidth(300)
layout.addWidget(qb)
layout.setAlignment(Qt.AlignTop)
scroll = QScrollArea()
scroll.setWidget(self)
scroll.setWidgetResizable(True)
scroll.setFixedHeight(400)
layout.addWidget(scroll)
self.setLayout(layout)
self.setGeometry(0, 0, 600, 220)
self.setWindowTitle('SnP watchlist')
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
#print(QDesktopWidget().availableGeometry())
ex = Example()
sys.exit(app.exec_())
您应该在添加 scroll bar
小部件后设置 layout
。
class Example(QWidget):
def __init__(self):
super().__init__()
layout = QVBoxLayout()
lbl_arr = makeArrayOfLabelsHTML()
for i in range(1,8):
qb = lbl_arr[i]
layout.addWidget(qb)
layout.setAlignment(Qt.AlignTop)
scroll = QScrollArea()
scroll.setWidget(self)
scroll.setWidgetResizable(True)
scroll.setFixedHeight(400)
layout.addWidget(scroll)
# set layout after adding scroll bar
self.setLayout(layout)
self.setGeometry(0, 0, 600, 220)
self.setWindowTitle('SnP watchlist')
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
#print(QDesktopWidget().availableGeometry())
ex = Example()
sys.exit(app.exec_())
使 window 本身成为 QScrollArea
,像这样:
class Window(QScrollArea):
def __init__(self):
super(Window, self).__init__()
widget = QWidget()
layout = QVBoxLayout(widget)
layout.setAlignment(Qt.AlignTop)
for index in range(100):
layout.addWidget(QLabel('Label %02d' % index))
self.setWidget(widget)
self.setWidgetResizable(True)
这里有一个例子:https://www.learnpyqt.com/tutorials/qscrollarea/
from PyQt5.QtWidgets import (QWidget, QSlider, QLineEdit, QLabel, QPushButton, QScrollArea,QApplication,
QHBoxLayout, QVBoxLayout, QMainWindow)
from PyQt5.QtCore import Qt, QSize
from PyQt5 import QtWidgets, uic
import sys
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.scroll = QScrollArea() # Scroll Area which contains the widgets, set as the centralWidget
self.widget = QWidget() # Widget that contains the collection of Vertical Box
self.vbox = QVBoxLayout() # The Vertical Box that contains the Horizontal Boxes of labels and buttons
for i in range(1,50):
object = QLabel("TextLabel: "+str(i))
self.vbox.addWidget(object)
self.widget.setLayout(self.vbox)
#Scroll Area Properties
self.scroll.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn)
self.scroll.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.scroll.setWidgetResizable(True)
self.scroll.setWidget(self.widget)
self.setCentralWidget(self.scroll)
self.setGeometry(600, 100, 1000, 900)
self.setWindowTitle('Scroll Area Demonstration')
self.show()
return
def main():
app = QtWidgets.QApplication(sys.argv)
main = MainWindow()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
我认为在 PyQt 中创建一个可滚动的 window 应该容易得多。 我有一个超出 window 的标签列表,我想向下滚动以查看它们。目前代码没有给我错误,但是 window 没有出现:
class Example(QWidget):
def __init__(self):
super().__init__()
layout = QVBoxLayout()
lbl_arr = makeLabelArr()
for i in range(1,8):
qb = lbl_arr[i]
# qb.setFixedWidth(300)
layout.addWidget(qb)
layout.setAlignment(Qt.AlignTop)
scroll = QScrollArea()
scroll.setWidget(self)
scroll.setWidgetResizable(True)
scroll.setFixedHeight(400)
layout.addWidget(scroll)
self.setLayout(layout)
self.setGeometry(0, 0, 600, 220)
self.setWindowTitle('SnP watchlist')
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
#print(QDesktopWidget().availableGeometry())
ex = Example()
sys.exit(app.exec_())
您应该在添加 scroll bar
小部件后设置 layout
。
class Example(QWidget):
def __init__(self):
super().__init__()
layout = QVBoxLayout()
lbl_arr = makeArrayOfLabelsHTML()
for i in range(1,8):
qb = lbl_arr[i]
layout.addWidget(qb)
layout.setAlignment(Qt.AlignTop)
scroll = QScrollArea()
scroll.setWidget(self)
scroll.setWidgetResizable(True)
scroll.setFixedHeight(400)
layout.addWidget(scroll)
# set layout after adding scroll bar
self.setLayout(layout)
self.setGeometry(0, 0, 600, 220)
self.setWindowTitle('SnP watchlist')
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
#print(QDesktopWidget().availableGeometry())
ex = Example()
sys.exit(app.exec_())
使 window 本身成为 QScrollArea
,像这样:
class Window(QScrollArea):
def __init__(self):
super(Window, self).__init__()
widget = QWidget()
layout = QVBoxLayout(widget)
layout.setAlignment(Qt.AlignTop)
for index in range(100):
layout.addWidget(QLabel('Label %02d' % index))
self.setWidget(widget)
self.setWidgetResizable(True)
这里有一个例子:https://www.learnpyqt.com/tutorials/qscrollarea/
from PyQt5.QtWidgets import (QWidget, QSlider, QLineEdit, QLabel, QPushButton, QScrollArea,QApplication,
QHBoxLayout, QVBoxLayout, QMainWindow)
from PyQt5.QtCore import Qt, QSize
from PyQt5 import QtWidgets, uic
import sys
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.scroll = QScrollArea() # Scroll Area which contains the widgets, set as the centralWidget
self.widget = QWidget() # Widget that contains the collection of Vertical Box
self.vbox = QVBoxLayout() # The Vertical Box that contains the Horizontal Boxes of labels and buttons
for i in range(1,50):
object = QLabel("TextLabel: "+str(i))
self.vbox.addWidget(object)
self.widget.setLayout(self.vbox)
#Scroll Area Properties
self.scroll.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn)
self.scroll.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.scroll.setWidgetResizable(True)
self.scroll.setWidget(self.widget)
self.setCentralWidget(self.scroll)
self.setGeometry(600, 100, 1000, 900)
self.setWindowTitle('Scroll Area Demonstration')
self.show()
return
def main():
app = QtWidgets.QApplication(sys.argv)
main = MainWindow()
sys.exit(app.exec_())
if __name__ == '__main__':
main()