Python wx 模块，FilePickerCtrl() 实例源码

def __init__(self, parent, rate=None, out_dir=None, in_dir=None):
        super(FFmpegConvertDialog, self).__init__(parent=parent, title="pyjam Audio Converter",
                                                  style=wx.DEFAULT_DIALOG_STYLE | wx.RESIZE_BORDER)

        self.in_dir = in_dir

        self.game_rate = intctrl.IntCtrl(self)
        game_rate_text = wx.StaticText(self, label="Audio rate")
        if rate is not None:
            self.game_rate.SetValue(rate)

        self.volume = wx.SpinCtrl(self, initial=85)
        volume_text = wx.StaticText(self, label="Volume %")

        self.in_picker = wx.FilePickerCtrl(self, style=wx.FLP_USE_TEXTCTRL)
        in_picker_text = wx.StaticText(self, label="Input file names (manually changing them has no effect)")
        self.in_files = []
        # the dumbest thing i've done all year (i'm overriding the controls of the PickerBase)
        for child in self.in_picker.GetChildren():
            if isinstance(child, wx.Button):
                child.Bind(wx.EVT_BUTTON, self.browse)

        self.out_dir = wx.DirPickerCtrl(self, name="Output directory")
        out_dir_text = wx.StaticText(self, label="Output directory")
        if out_dir is not None:
            self.out_dir.SetPath(out_dir)

        top_sizer = wx.BoxSizer(wx.VERTICAL)
        top_row = wx.BoxSizer(wx.HORIZONTAL)
        rate_sizer = wx.BoxSizer(wx.VERTICAL)
        vol_sizer = wx.BoxSizer(wx.VERTICAL)
        dir_sizer = wx.BoxSizer(wx.VERTICAL)
        button_sizer = self.CreateButtonSizer(wx.OK | wx.CANCEL)

        rate_sizer.Add(game_rate_text, 0, wx.ALL ^ wx.BOTTOM | wx.ALIGN_LEFT, 5)
        rate_sizer.Add(self.game_rate, 0, wx.ALL | wx.ALIGN_LEFT, 5)
        vol_sizer.Add(volume_text, 0, wx.ALL ^ wx.BOTTOM | wx.ALIGN_LEFT, 5)
        vol_sizer.Add(self.volume, 0, wx.ALL | wx.ALIGN_LEFT, 5)
        top_row.Add(rate_sizer)
        top_row.Add(vol_sizer)
        dir_sizer.Add(in_picker_text, 0, wx.ALL ^ wx.LEFT | wx.ALIGN_LEFT, 3)
        dir_sizer.Add(self.in_picker, 0, wx.ALL ^ wx.LEFT ^ wx.TOP | wx.ALIGN_LEFT | wx.EXPAND, 5)
        dir_sizer.Add(out_dir_text, 0, wx.ALL ^ wx.LEFT | wx.ALIGN_LEFT, 3)
        dir_sizer.Add(self.out_dir, 0, wx.ALL ^ wx.LEFT ^ wx.TOP | wx.ALIGN_LEFT | wx.EXPAND, 5)
        top_sizer.Add(top_row)
        top_sizer.Add(dir_sizer, 1, wx.ALL | wx.EXPAND | wx.ALIGN_TOP, 5)
        top_sizer.Add(button_sizer, 0, wx.ALL | wx.ALIGN_CENTER, 5)

        self.Bind(wx.EVT_BUTTON, self.on_ok, id=wx.ID_OK)
        self.Bind(wx.EVT_BUTTON, self.on_cancel, id=wx.ID_CANCEL)

        self.converter = None
        self.progress_dialog = None
        self.num_songs = 0

        self.SetSizer(top_sizer)
        # self.SetSize(400, 250)
        self.Center()
        self.ShowModal()