| 16 | |
| 17 | |
| 18 | class CustomWidget(QWidget): |
| 19 | |
| 20 | def __init__(self, item, *args, **kwargs): |
| 21 | super(CustomWidget, self).__init__(*args, **kwargs) |
| 22 | self.oldSize = None |
| 23 | self.item = item |
| 24 | layout = QFormLayout(self) |
| 25 | layout.addRow('我是label', QLineEdit(self)) |
| 26 | layout.addRow('点击', QCheckBox( |
| 27 | '隐藏下面的按钮', self, toggled=self.hideChild)) |
| 28 | self.button = QPushButton('我是被隐藏的', self) |
| 29 | layout.addRow(self.button) |
| 30 | |
| 31 | def hideChild(self, v): |
| 32 | self.button.setVisible(not v) |
| 33 | # 这里很重要 当隐藏内部子控件时 需要重新计算高度 |
| 34 | self.adjustSize() |
| 35 | |
| 36 | def resizeEvent(self, event): |
| 37 | # 解决item的高度问题 |
| 38 | super(CustomWidget, self).resizeEvent(event) |
| 39 | self.item.setSizeHint(QSize(self.minimumWidth(), self.height())) |
| 40 | |
| 41 | |
| 42 | class CustomButton(QPushButton): |