我设置了QSplitter中项目的大小策略,但似乎没有任何影响。在下面的示例中,当我调整窗口大小时,我希望我的左侧部件在达到其大小提示(QSizePolicy.Preferred)后停止增长,右侧部件尽可能扩展(QSizePolicy.Expanding)。
如果我将它们放在布局中,则可以正常工作:
如果我将它们放在布局中,则可以正常工作:
from PyQt5 import QtWidgets, QtCore
app = QtWidgets.QApplication([])
class ColoredBox(QtWidgets.QFrame):
def __init__(self, color):
super().__init__()
self.setStyleSheet(f'background-color: {color}')
def sizeHint(self) -> QtCore.QSize:
return QtCore.QSize(200, 200)
box1 = ColoredBox('red')
box2 = ColoredBox('green')
splitter = QtWidgets.QHBoxLayout()
splitter.setContentsMargins(0, 0, 0, 0)
splitter.setSpacing(0)
splitter.addWidget(box1)
splitter.addWidget(box2)
box1.setSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)
box2.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
container = QtWidgets.QWidget()
container.setLayout(splitter)
container.show()
app.exec_()
但如果我将它们放在QSplitter中,它们就无法正常工作,分隔器只是平均地分割它们之间的空间:
from PyQt5 import QtWidgets, QtCore
from PyQt5.QtCore import Qt
app = QtWidgets.QApplication([])
class ColoredBox(QtWidgets.QFrame):
def __init__(self, color):
super().__init__()
self.setStyleSheet(f'background-color: {color}')
def sizeHint(self) -> QtCore.QSize:
return QtCore.QSize(200, 200)
box1 = ColoredBox('red')
box2 = ColoredBox('green')
splitter = QtWidgets.QSplitter(Qt.Horizontal)
splitter.setStretchFactor(0, 0)
splitter.setStretchFactor(1, 1)
splitter.addWidget(box1)
splitter.addWidget(box2)
box1.setSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)
box2.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
container = QtWidgets.QMainWindow()
container.setCentralWidget(splitter)
container.show()
app.exec_()
布局 vs 分裂器: