tkinter - ask for a *new* folder ?

On Tue, 5 May 2020 10:49:19 +0200, "R.Wieser" declaimed the following:

The short answer is that you probably have to subclass/extend the current dialog to add some button for "new directory" -- on clicking that button you present a dialog for a directory name (relative to current selected path), and use os.mkdir() to create the directory. Then refresh the dialog to add the new directory to its display...

I've only touched on tkinter some 20 years ago, and hated it -- trying to figure out what attributes were Python level vs stuff in the underlying TCL/TK library was painful.

Dennis,

Hello again. :-)

That ... was something I wanted to evade. Subclassing a tkinter GUI element is a whole new area for me, and I'm not even sure I want to go there (got enough other stuff to do).

I won't claim I hate it, but its currently a bit awkward to me too (it might still "grow" on me though). Starting with not even being able to put a dialog up (like the above one) without a "root" window being created too - which than has to be suppressed and ... Well, I'm sure that I will encounter some "interresting" effects because of that suppression later on.

But, if I want to have some GUI-based user interaction I don't think I've got much choice than to use tkinter.

Regards, Rudy Wieser

On Tue, 5 May 2020 20:53:12 +0200, "R.Wieser" declaimed the following:

OTOH...

-=-=-=- pi@rpi3bplus-1:~$ apt search wxpython Sorting... Done Full Text Search... Done cain/stable 1.10+dfsg-3 all simulations of chemical reactions

python-wxgtk4.0/stable 4.0.4+dfsg-2 armhf Python interface to the wxWidgets Cross-platform C++ GUI toolkit

python3-wxgtk4.0/stable,now 4.0.4+dfsg-2 armhf [installed] Python 3 interface to the wxWidgets Cross-platform C++ GUI toolkit

pi@rpi3bplus-1:~$ sudo apt install python-wxgtk4.0 Preparing to unpack .../python-wxgtk4.0_4.0.4+dfsg-2_armhf.deb ... Unpacking python-wxgtk4.0 (4.0.4+dfsg-2) ... Setting up python-sip (4.19.14+dfsg-2) ... Setting up python-wxgtk4.0 (4.0.4+dfsg-2) ...

Progress: [ 89%] [#################################################################.........]

pi@rpi3bplus-1:~$ sudo apt install python3-wxgtk4.0 wx3.0-doc Reading package lists... Done Building dependency tree Reading state information... Done python3-wxgtk4.0 is already the newest version (4.0.4+dfsg-2).

On Tue, 05 May 2020 15:46:44 -0400, Dennis Lee Bieber declaimed the following:

ADDENDUM:

pi@rpi3bplus-1:~$ python3 Python 3.7.3 (default, Dec 20 2019, 18:57:59) [GCC 8.3.0] on linux Type "help", "copyright", "credits" or "license" for more information.

'4.0.4'

'4.0.4 gtk3 (phoenix) wxWidgets 3.0.4'

... So appears to be there for recent Raspbian/Buster.

On Tue, 05 May 2020 15:46:44 -0400, Dennis Lee Bieber declaimed the following:

SECOND ADDENDUM:

There are also binding for pyqt5 shown in the package list on Raspbian, but I have even less knowledge of the QT5 library (bad enough my wxPython books cover 2.x-3.x, I just ordered a book covering wxPython 4.x [Phoenix] as there are some significant changes

Dennis,

Thanks. Although I'm a bit of a sucker for whats installed by default, do you have any opinion about the easyness-of-use of WxWidgets (thats the name for them, isn't it?) compared to tkinter ?

Than again, I could not help myself to google for how to subclass tkinter elements. :-) Might be much easier than I thought. Will need to google some more.

(saw & read your other two post in this regard too)

Regards, Rudy Wieser

For simple GUI interactions check out Zenity.

On Wed, 6 May 2020 08:59:28 +0200, "R.Wieser" declaimed the following:

The book covering Phoenix version

Just for giggles wxPython vs PyQT

Interesting...

For simple TUI interactions check out whiptail (AFAIK pre-installed on Raspbian).

Thanks, I'll look at that, but Zenity does file and calendar selectors.

Resurrecting a near 2-week old thread...

On Wed, 6 May 2020 08:59:28 +0200, "R.Wieser" declaimed the following:

The book I'd ordered isn't as detailed as I'd like (it sure isn't an equivalent of the pre-Phoenix "wxPython In Action" book). It refers one to the on-line documentation for wxPython and basically just runs a sequence of examples from the equivalent of "Hello World", an image view, database viewer, ... FTP client.

However... Between the new book and

-=-=- import wx

class APanel(wx.Panel): def __init__(self, parent): super().__init__(parent) button = wx.Button(self, label="Select Directory") button.Bind(wx.EVT_BUTTON, self.on_button_press) self.directory = wx.TextCtrl(self, style=wx.TE_READONLY, size=(400, -1)) sizer = wx.BoxSizer(wx.VERTICAL) sizer.Add(button, proportion=0, flag=wx.ALL | wx.CENTER, border=5) sizer.Add(self.directory, proportion=0, flag=wx.ALL | wx.CENTER, border=5) self.SetSizer(sizer) def on_button_press(self, event): with wx.DirDialog(None, message="Choose a Directory", defaultPath="", size=(400, 400), style=wx.DD_DEFAULT_STYLE, # | wx.DD_DIR_MUST_EXIST, ) as dialog: # OR the DD_DIR_MUST_EXIST if suppressing New Directory button if dialog.ShowModal() == wx.ID_OK: self.directory.SetValue(dialog.GetPath()) #else user CANCELLED, don't set directory

class AFrame(wx.Frame): def __init__(self): super().__init__(None, title="Directory Selector Demo") panel = APanel(self) self.Show()

if __name__ == "__main__": app = wx.App(redirect=False) frame = AFrame() app.MainLoop()

-=-=-

... which runs on my Win10, Debian Buster in Oracle VirtualBox, and on an R-Pi 3B. Looking at the command history on the R-Pi, I'd had to execute

sudo apt install python3-wxgtk4.0 wx3.0-doc

to install wxPython Phoenix for Python3.x (I've run similar on the Debian, and probably used pip3 on Win10.

On Linux, it seems to open in "/home" (and does not display a "create directory" button at that level -- but as soon as you've clicked on a directory (eg: "pi") the create directory button appears in the window.

I'll admit I'm getting a few warnings when run on the R-Pi, which did not appear in full Debian Buster.

pi@rpi3bplus-1:~$ python3 dirselectdemo.py

(dirselectdemo.py:2342): Gtk-WARNING **: 13:46:27.704: Negative content width -33 (allocation 1, extents 17x17) while allocating gadget (node button, owner GtkButton)

(dirselectdemo.py:2342): Gtk-WARNING **: 13:46:27.704: Negative content height -9 (allocation 1, extents 5x5) while allocating gadget (node button, owner GtkButton)

(dirselectdemo.py:2342): Gtk-WARNING **: 13:46:27.704: Negative content width -17 (allocation 1, extents 9x9) while allocating gadget (node entry, owner GtkEntry)

(dirselectdemo.py:2342): Gtk-WARNING **: 13:46:27.704: Negative content height -9 (allocation 1, extents 5x5) while allocating gadget (node entry, owner GtkEntry) pi@rpi3bplus-1:~$

Possibly a result of going through VNC Viewer...