QFileDialog中有多个文件和文件夹选择? [英] Multiple files AND folder selection in a QFileDialog?

问题描述

我正在使用pyQt4，并希望在GUI中有一个浏览按钮，该按钮会打开一个对话框，允许用户选择多个文件 AND 文件夹. 我已经研究了很多，但找不到任何方法可以做到这一点.

I am using pyQt4 and want to have a Browse button in my GUI which opens up a Dialog box allowing user to select multiple files AND folders. I have researched quite a bit but din't find any way to be able to do this.

QFileDialog.getOpenFileNames()仅允许我选择文件，而QFileDialog.getExistingDirectory()仅允许选择目录.

The QFileDialog.getOpenFileNames() only allows me to choose files and QFileDialog.getExistingDirectory() only allows to choose directories.

有什么办法可以以某种方式组合它们的功能. 理想情况下，我想使用nativeDialogs，但这似乎是不可能的. 因此，我愿意在外观上做出让步.我有什么办法可以实现所说的?

Is there any way I can somehow combine their functionality. Ideally I would like to use the nativeDialogs but that doesn't seem to be possible. As a result I am willing to compromise on the looks. Is there any way I can implement the said?

这里也有人问过同样的问题，但是答案是c ++.我需要一个python实现. 允许用户在其中选择文件或文件夹QFileDialog

The same question has been asked here as well but the answer is in c++. I need a python implementation. Allow user to select a file or a folder in QFileDialog

推荐答案

以下是对您有用的技巧:创建QFileDialog的子类，以断开打开"按钮的连接并将其重新连接到自定义函数.但是，不能保证它可以在不同版本的Qt上使用，因为它依赖于能够找到可以在某个时候重新配置的特定子窗口部件.

Here's a hack that should work for you: Create a subclass of QFileDialog that disconnects the "Open" button and reconnects it to a customized function. It's not guaranteed to work across different versions of Qt, though, since it relies on being able to find specific sub-widgets that may be reconfigured at some point.

class FileDialog(QtGui.QFileDialog):
    def __init__(self, *args):
        QtGui.QFileDialog.__init__(self, *args)
        self.setOption(self.DontUseNativeDialog, True)
        self.setFileMode(self.ExistingFiles)
        btns = self.findChildren(QtGui.QPushButton)
        self.openBtn = [x for x in btns if 'open' in str(x.text()).lower()][0]
        self.openBtn.clicked.disconnect()
        self.openBtn.clicked.connect(self.openClicked)
        self.tree = self.findChild(QtGui.QTreeView)

    def openClicked(self):
        inds = self.tree.selectionModel().selectedIndexes()
        files = []
        for i in inds:
            if i.column() == 0:
                files.append(os.path.join(str(self.directory().absolutePath()),str(i.data().toString())))
        self.selectedFiles = files
        self.hide()

    def filesSelected(self):
        return self.selectedFiles

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