网格布局:列宽以适应禁用的小部件

for widget in self.TabScrollAreaContentsA.children():
    print(widget)

输出:

<PyQt4.QtGui.QGridLayout object at 0x7f9a19fc3f78>
<PyQt4.QtGui.QPushButton object at 0x7f9a1a0c7048>
<PyQt4.QtGui.QLineEdit object at 0x7f9a1a0c70d8>
<PyQt4.QtGui.QLabel object at 0x7f9a1a0c71f8>
<PyQt4.QtGui.QLineEdit object at 0x7f9a1a0c73a8>
<PyQt4.QtGui.QLabel object at 0x7f9a1a0c7438>
<PyQt4.QtGui.QLineEdit object at 0x7f9a1a0c74c8>
<PyQt4.QtGui.QLabel object at 0x7f9a1a0c7558>
<PyQt4.QtGui.QPushButton object at 0x7f9a1a0c75e8>
<PyQt4.QtGui.QLineEdit object at 0x7f9a1a0c7678>

据观察,它显示为一个布局,并根据 docs :

如果enable为true,则启用此布局,否则将禁用它。

启用的布局根据变化动态调整;禁用的布局 就好像它不存在一样。

默认情况下,启用所有布局。

也就是说,如果禁用某些布局,则它将与不存在的布局相同。

for obj in self.TabScrollAreaContentsA.children():
    if isinstance(obj, QtGui.QWidget):
        obj.setEnabled(False)