PyQt - QFileDialog - 直接浏览到一个文件夹？

Question

有没有办法直接浏览到使用QFileDialog的文件夹？

这意味着,不是在导航到目标文件夹时双击每个文件夹,只需在某处输入路径或使用Mac OS X上的Finder中的热键(Shift + Command + G).

谢谢!

编辑:(我的代码)

    filter = "Wav File (*.wav)"
    self._audio_file = QtGui.QFileDialog.getOpenFileName(self, "Audio File",
                                                        "/myfolder/folder", filter)
    self._audio_file = str(self._audio_file)

Answer 1

这是一个快速打开/保存的便利功能QFileDialog。

from PyQt5.QtWidgets import QFileDialog, QDialog
from definitions import ROOT_DIR
from PyQt5 import QtCore


def FileDialog(directory='', forOpen=True, fmt='', isFolder=False):
    options = QFileDialog.Options()
    options |= QFileDialog.DontUseNativeDialog
    options |= QFileDialog.DontUseCustomDirectoryIcons
    dialog = QFileDialog()
    dialog.setOptions(options)

    dialog.setFilter(dialog.filter() | QtCore.QDir.Hidden)

    # ARE WE TALKING ABOUT FILES OR FOLDERS
    if isFolder:
        dialog.setFileMode(QFileDialog.DirectoryOnly)
    else:
        dialog.setFileMode(QFileDialog.AnyFile)
    # OPENING OR SAVING
    dialog.setAcceptMode(QFileDialog.AcceptOpen) if forOpen else dialog.setAcceptMode(QFileDialog.AcceptSave)

    # SET FORMAT, IF SPECIFIED
    if fmt != '' and isFolder is False:
        dialog.setDefaultSuffix(fmt)
        dialog.setNameFilters([f'{fmt} (*.{fmt})'])

    # SET THE STARTING DIRECTORY
    if directory != '':
        dialog.setDirectory(str(directory))
    else:
        dialog.setDirectory(str(ROOT_DIR))


    if dialog.exec_() == QDialog.Accepted:
        path = dialog.selectedFiles()[0]  # returns a list
        return path
    else:
        return ''

Answer 2

如果使用静态QFileDialog函数,则会获得本机文件对话框,因此您将受限于平台提供的功能.您可以查阅适用于您的平台的文档,以了解您所需的功能是否可用.

如果它不可用,你将不得不接受Qt的内置文件对话框,并添加自己的功能.对于您的特定用例,这应该很简单,因为内置对话框似乎已经拥有您想要的内容.它有一个侧栏,显示用户可以直接导航到的"位置"列表.您可以像这样设置自己的地方:

dialog = QtGui.QFileDialog(self, 'Audio Files', directory, filter)
dialog.setFileMode(QtGui.QFileDialog.DirectoryOnly)
dialog.setSidebarUrls([QtCore.QUrl.fromLocalFile(place)])
if dialog.exec_() == QtGui.QDialog.Accepted:
    self._audio_file = dialog.selectedFiles()[0]

Answer 3

改用getExistingDirectory方法：

from PyQt5.QtWidgets import QFileDialog

dialog = QFileDialog()
foo_dir = dialog.getExistingDirectory(self, 'Select an awesome directory')
print(foo_dir)