|
| 1 | +import sys |
| 2 | + |
| 3 | +from PySide6 import QtWidgets |
| 4 | + |
| 5 | +""" |
| 6 | +QFileDialog 文件对话框 |
| 7 | +
|
| 8 | +用户可以通过文件对话框浏览文件或目录,常用于选择打开文件、将当前文件保存到某处等场景 |
| 9 | +官方文档:https://doc.qt.io/qtforpython/PySide6/QtWidgets/QFileDialog.html |
| 10 | +继承自 QDialog |
| 11 | +
|
| 12 | +有两种构造函数,简介版只可选地传入父控件与窗口标志,完整版可以在创建时定义更多属性功能: |
| 13 | +.__init__(self, parent: QWidget, f: QtCore.Qt.WindowFlags) |
| 14 | +.__init__(self, parent: Optional[QWidget] = None, caption: str = '', directory: str = '', filter: str = '') |
| 15 | +
|
| 16 | +""" |
| 17 | + |
| 18 | + |
| 19 | +class MyWidget(QtWidgets.QWidget): |
| 20 | + def __init__(self, *args, **kwargs): |
| 21 | + super().__init__(*args, **kwargs) |
| 22 | + self.setWindowTitle("QFileDialog-简介") |
| 23 | + self.dialog = QtWidgets.QFileDialog(self) |
| 24 | + self.setup_dialog() |
| 25 | + self.setup_ui() |
| 26 | + |
| 27 | + def setup_dialog(self) -> None: |
| 28 | + """配置对话框属性功能""" |
| 29 | + self.dialog.setAcceptMode(QtWidgets.QFileDialog.AcceptOpen) # 打开模式 |
| 30 | + self.dialog.setFileMode(QtWidgets.QFileDialog.ExistingFiles) # 选择现有文件 |
| 31 | + self.dialog.setLabelText(QtWidgets.QFileDialog.Accept, "选择") # 为「接受」按键指定文本 |
| 32 | + self.dialog.setLabelText(QtWidgets.QFileDialog.Reject, "取消") # 为「拒绝」按键指定文本 |
| 33 | + |
| 34 | + def setup_ui(self) -> None: |
| 35 | + """设置界面""" |
| 36 | + self.resize(800, 600) |
| 37 | + browse_btn = QtWidgets.QPushButton("选择文件", self) |
| 38 | + browse_btn.move(150, 200) |
| 39 | + browse_btn.clicked.connect(self.dialog.open) # type: ignore |
| 40 | + info_le = QtWidgets.QLineEdit(self) |
| 41 | + info_le.move(150, 250) |
| 42 | + info_le.setMinimumWidth(600) |
| 43 | + self.dialog.fileSelected.connect(lambda path: info_le.setText(path)) # type: ignore |
| 44 | + |
| 45 | + |
| 46 | +if __name__ == "__main__": |
| 47 | + app = QtWidgets.QApplication(sys.argv) |
| 48 | + window = MyWidget() |
| 49 | + window.show() |
| 50 | + sys.exit(app.exec()) |
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