[英]Select a file or a folder in QFileDialog pyqt5
我的脚本目前使用 QtWidgets.QFileDialog.getOpenFileNames() 让用户在 Windows 资源管理器中选择文件。 现在我想知道是否有办法让他们也选择文件夹,而不仅仅是文件。 有一些类似的帖子,但没有一个提供有效的解决方案。 我真的不想使用 QFileDialog 文件资源管理器来解决这个问题。
QFileDialog 本身不允许这样做。 唯一的解决方案是创建自己的实例,做一些小的“修补”。
请注意,为了实现这一点,您不能使用操作系统的本机对话框,因为 Qt 几乎无法控制它们; 这就是dialog.DontUseNativeDialog
标志的原因,这是强制性的。
下面的代码和静态方法一样工作,并返回选定的项目(或不返回,如果对话框被取消)。
def getOpenFilesAndDirs(parent=None, caption='', directory='',
filter='', initialFilter='', options=None):
def updateText():
# update the contents of the line edit widget with the selected files
selected = []
for index in view.selectionModel().selectedRows():
selected.append('"{}"'.format(index.data()))
lineEdit.setText(' '.join(selected))
dialog = QtWidgets.QFileDialog(parent, windowTitle=caption)
dialog.setFileMode(dialog.ExistingFiles)
if options:
dialog.setOptions(options)
dialog.setOption(dialog.DontUseNativeDialog, True)
if directory:
dialog.setDirectory(directory)
if filter:
dialog.setNameFilter(filter)
if initialFilter:
dialog.selectNameFilter(initialFilter)
# by default, if a directory is opened in file listing mode,
# QFileDialog.accept() shows the contents of that directory, but we
# need to be able to "open" directories as we can do with files, so we
# just override accept() with the default QDialog implementation which
# will just return exec_()
dialog.accept = lambda: QtWidgets.QDialog.accept(dialog)
# there are many item views in a non-native dialog, but the ones displaying
# the actual contents are created inside a QStackedWidget; they are a
# QTreeView and a QListView, and the tree is only used when the
# viewMode is set to QFileDialog.Details, which is not this case
stackedWidget = dialog.findChild(QtWidgets.QStackedWidget)
view = stackedWidget.findChild(QtWidgets.QListView)
view.selectionModel().selectionChanged.connect(updateText)
lineEdit = dialog.findChild(QtWidgets.QLineEdit)
# clear the line edit contents whenever the current directory changes
dialog.directoryEntered.connect(lambda: lineEdit.setText(''))
dialog.exec_()
return dialog.selectedFiles()
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