如何为 QGridLayout 中隐藏的 QtWaitingSpinner 保留 space?
How to reserve space for hidden QtWaitingSpinner in QGridLayout?
我正在尝试构建一个使用 QtWaitingSpinner 的 QtGui 应用程序:https://github.com/z3ntu/QtWaitingSpinner。我把它放在 QGridLayout 中。但是,这意味着当微调器未隐藏并启动时,它旁边的按钮会更改大小。如何为网格中的微调器保留正确数量的 space,以便无论是否显示微调器,它旁边的按钮都保持恒定大小?
基于这个Whosebug post ,我怀疑答案涉及QSpacerItem。但是,我不知道如何根据微调器需要的大小来调整 QSpacerItem 的大小。
下面是显示我的问题的最小代码示例:
import PyQt5.QtWidgets as QWidgets
import PyQt5.QtCore as QtCore
import PyQt5.QtGui as QtGui
from waitingspinnerwidget import QtWaitingSpinner
import sys
class Example_Window(QWidgets.QWidget):
def __init__(self):
super(QWidgets.QWidget,self).__init__()
self.initUI()
def initUI(self):
self.button=QWidgets.QPushButton("Start/Stop Spinner")
self.button.clicked.connect(self.toggle_spinner)
self.spinner = QtWaitingSpinner(self,centerOnParent=False)
self.grid = QWidgets.QGridLayout()
self.grid.addWidget(self.button,0,0)
self.grid.addWidget(self.spinner,0,1)
self.setLayout(self.grid)
self.show()
def toggle_spinner(self):
if self.spinner.isSpinning():
self.spinner.stop()
else:
self.spinner.start()
if __name__ == '__main__':
app = QWidgets.QApplication([])
main = Example_Window()
sys.exit(app.exec())
试一试:
import PyQt5.QtWidgets as QWidgets
import PyQt5.QtCore as QtCore
import PyQt5.QtGui as QtGui
from waitingspinnerwidget import QtWaitingSpinner
import sys
class Example_Window(QWidgets.QWidget):
def __init__(self):
super(QWidgets.QWidget,self).__init__()
self.initUI()
def initUI(self):
self.button = QWidgets.QPushButton("Start Spinner") # +
self.button.clicked.connect(self.toggle_spinner)
self.spinner = QtWaitingSpinner(self, centerOnParent=False)
self.grid = QWidgets.QGridLayout()
self.grid.addWidget(self.button, 0, 0)
# self.grid.addWidget(self.spinner,0,1) # ---
self.grid.addWidget(self.spinner, 0, 1, 1, 2) # +++ <---
self.setLayout(self.grid)
self.show()
def toggle_spinner(self):
if self.spinner.isSpinning():
self.spinner.stop()
self.button.setText("Start Spinner") # +
else:
self.spinner.start()
self.button.setText("Stop Spinner") # +
if __name__ == '__main__':
app = QWidgets.QApplication([])
main = Example_Window()
main.resize(170, 70) # +++
sys.exit(app.exec())
我正在尝试构建一个使用 QtWaitingSpinner 的 QtGui 应用程序:https://github.com/z3ntu/QtWaitingSpinner。我把它放在 QGridLayout 中。但是,这意味着当微调器未隐藏并启动时,它旁边的按钮会更改大小。如何为网格中的微调器保留正确数量的 space,以便无论是否显示微调器,它旁边的按钮都保持恒定大小?
基于这个Whosebug post
下面是显示我的问题的最小代码示例:
import PyQt5.QtWidgets as QWidgets
import PyQt5.QtCore as QtCore
import PyQt5.QtGui as QtGui
from waitingspinnerwidget import QtWaitingSpinner
import sys
class Example_Window(QWidgets.QWidget):
def __init__(self):
super(QWidgets.QWidget,self).__init__()
self.initUI()
def initUI(self):
self.button=QWidgets.QPushButton("Start/Stop Spinner")
self.button.clicked.connect(self.toggle_spinner)
self.spinner = QtWaitingSpinner(self,centerOnParent=False)
self.grid = QWidgets.QGridLayout()
self.grid.addWidget(self.button,0,0)
self.grid.addWidget(self.spinner,0,1)
self.setLayout(self.grid)
self.show()
def toggle_spinner(self):
if self.spinner.isSpinning():
self.spinner.stop()
else:
self.spinner.start()
if __name__ == '__main__':
app = QWidgets.QApplication([])
main = Example_Window()
sys.exit(app.exec())
试一试:
import PyQt5.QtWidgets as QWidgets
import PyQt5.QtCore as QtCore
import PyQt5.QtGui as QtGui
from waitingspinnerwidget import QtWaitingSpinner
import sys
class Example_Window(QWidgets.QWidget):
def __init__(self):
super(QWidgets.QWidget,self).__init__()
self.initUI()
def initUI(self):
self.button = QWidgets.QPushButton("Start Spinner") # +
self.button.clicked.connect(self.toggle_spinner)
self.spinner = QtWaitingSpinner(self, centerOnParent=False)
self.grid = QWidgets.QGridLayout()
self.grid.addWidget(self.button, 0, 0)
# self.grid.addWidget(self.spinner,0,1) # ---
self.grid.addWidget(self.spinner, 0, 1, 1, 2) # +++ <---
self.setLayout(self.grid)
self.show()
def toggle_spinner(self):
if self.spinner.isSpinning():
self.spinner.stop()
self.button.setText("Start Spinner") # +
else:
self.spinner.start()
self.button.setText("Stop Spinner") # +
if __name__ == '__main__':
app = QWidgets.QApplication([])
main = Example_Window()
main.resize(170, 70) # +++
sys.exit(app.exec())