[英]Select a file or a folder in QFileDialog pyqt5
我的腳本目前使用 QtWidgets.QFileDialog.getOpenFileNames() 讓用戶在 Windows 資源管理器中選擇文件。 現在我想知道是否有辦法讓他們也選擇文件夾,而不僅僅是文件。 有一些類似的帖子,但沒有一個提供有效的解決方案。 我真的不想使用 QFileDialog 文件資源管理器來解決這個問題。
QFileDialog 本身不允許這樣做。 唯一的解決方案是創建自己的實例,做一些小的“修補”。
請注意,為了實現這一點,您不能使用操作系統的本機對話框,因為 Qt 幾乎無法控制它們; 這就是dialog.DontUseNativeDialog
標志的原因,這是強制性的。
下面的代碼和靜態方法一樣工作,並返回選定的項目(或不返回,如果對話框被取消)。
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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