From esg at unife.it  Fri May  9 23:35:05 2014
From: esg at unife.it (Josef Eschgfaeller)
Date: Fri, 9 May 2014 23:35:05 +0200
Subject: [Tkinter-discuss] Different fonts in 3.3?
Message-ID: <CAFBvUat=jAGWrPRr7XXfkPh2tshvnpWfXUHidT8B06XXGAkfZA@mail.gmail.com>

Trying to pass from Python 3.1 to 3.3 I have
a problem with Tkinter: fonts (or spacings)
in 3.3 seem to be higher, so that after
instructions like

    A=tkinter.Text(B,width=36,height=27,...)

the text widget requires more space than
before with 3.1. I have Mac OS X 10.6.8 and
call Python from a script using

    #! /Library/Frameworks/Python.framework\
                /Versions/3.x/bin/python3

It seems also that the letters are a bit uglier,
somewhat more compressed.

Thanks
Josef Eschgfaeller

From nad at acm.org  Sat May 10 21:30:42 2014
From: nad at acm.org (Ned Deily)
Date: Sat, 10 May 2014 12:30:42 -0700
Subject: [Tkinter-discuss] Different fonts in 3.3?
References: <CAFBvUat=jAGWrPRr7XXfkPh2tshvnpWfXUHidT8B06XXGAkfZA@mail.gmail.com>
Message-ID: <nad-1CE394.12304110052014@news.gmane.org>

In article 
<CAFBvUat=jAGWrPRr7XXfkPh2tshvnpWfXUHidT8B06XXGAkfZA at mail.gmail.com>,
 Josef Eschgfaeller <esg at unife.it> wrote:
> Trying to pass from Python 3.1 to 3.3 I have
> a problem with Tkinter: fonts (or spacings)
> in 3.3 seem to be higher, so that after
> instructions like
> 
>     A=tkinter.Text(B,width=36,height=27,...)
> 
> the text widget requires more space than
> before with 3.1. I have Mac OS X 10.6.8 and
> call Python from a script using
> 
>     #! /Library/Frameworks/Python.framework\
>                 /Versions/3.x/bin/python3
> 
> It seems also that the letters are a bit uglier,
> somewhat more compressed.

Chances are that the difference is not in Python itself but in the 
versions of Tk that the two Pythons are linked with.  I wouldn't be 
surprised to find that the 3.1 version is linked with Tk 8.4 and 3.3 is 
with Tk 8.5.  One way to check is:

$ otool -L $(python3.3 -c 'import _tkinter;print(_tkinter.__file__)')
/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/lib-dynlo
ad/_tkinter.so:
   /Library/Frameworks/Tcl.framework/Versions/8.5/Tcl (compatibility 
version 8.5.0, current version 8.5.15)
   /Library/Frameworks/Tk.framework/Versions/8.5/Tk (compatibility 
version 8.5.0, current version 8.5.15)
   /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
version 125.2.0)

If you are using the python.org 3.3, please be sure to follow the README 
instructions to install a new version of Tcl/Tk 8.5 (like the ActiveTcl 
one); the Apple-supplied system Tcl/Tk 8.5 in OS X 10.6 was new and very 
buggy.

-- 
 Ned Deily,
 nad at acm.org


From alan.gauld at btinternet.com  Tue May 13 20:51:25 2014
From: alan.gauld at btinternet.com (Alan Gauld)
Date: Tue, 13 May 2014 19:51:25 +0100
Subject: [Tkinter-discuss] How to enable/disable a menu?
Message-ID: <lktpjd$oqr$1@ger.gmane.org>

I have an app with a tabbed notebook. I want to
only enable one of the main menus when the appropriate
tab is selected. When the tab is deselected I want
to disable the menu again.

I can't see any obvious properties in the Menu
object. I can mess around with flags in the event
handlers and change the menu font colours etc but
that's pretty horrible. Is there anything better?

Using Python 3.3; on Linux and Windows 8 if it makes
any difference.

TIA
-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.flickr.com/photos/alangauldphotos


From alejandroautalan at gmail.com  Wed May 14 03:21:39 2014
From: alejandroautalan at gmail.com (Alejandro Autalan)
Date: Tue, 13 May 2014 22:21:39 -0300
Subject: [Tkinter-discuss] How to enable/disable a menu?
In-Reply-To: <lktpjd$oqr$1@ger.gmane.org>
References: <lktpjd$oqr$1@ger.gmane.org>
Message-ID: <CAMicNw3gj61jrcb+RDK0N5iAsC811F3nteZaTOCpv4F3tcotUA@mail.gmail.com>

2014-05-13 15:51 GMT-03:00 Alan Gauld <alan.gauld at btinternet.com>:
> I have an app with a tabbed notebook. I want to
> only enable one of the main menus when the appropriate
> tab is selected. When the tab is deselected I want
> to disable the menu again.
>
> I can't see any obvious properties in the Menu
> object. I can mess around with flags in the event
> handlers and change the menu font colours etc but
> that's pretty horrible. Is there anything better?
>
> Using Python 3.3; on Linux and Windows 8 if it makes
> any difference.
>
> TIA
> --
> Alan G
> Author of the Learn to Program web site
> http://www.alan-g.me.uk/
> http://www.flickr.com/photos/alangauldphotos
>
> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> https://mail.python.org/mailman/listinfo/tkinter-discuss

Hello,
You can use the 'state' option of the menuitem.
Here's an example: http://linkode.org/tE01VF7sGPOXjvsWymBqi4

Regards
Alejandro A.

From bouncingcats at gmail.com  Wed May 14 05:06:10 2014
From: bouncingcats at gmail.com (David)
Date: Wed, 14 May 2014 13:06:10 +1000
Subject: [Tkinter-discuss] How to enable/disable a menu?
In-Reply-To: <CAMicNw3gj61jrcb+RDK0N5iAsC811F3nteZaTOCpv4F3tcotUA@mail.gmail.com>
References: <lktpjd$oqr$1@ger.gmane.org>
 <CAMicNw3gj61jrcb+RDK0N5iAsC811F3nteZaTOCpv4F3tcotUA@mail.gmail.com>
Message-ID: <CAMPXz=qRuHwZsnmoyfQcSP2VT7WiwpkOQ3=0Z0F-fMW4_502fg@mail.gmail.com>

On 14 May 2014 11:21, Alejandro Autalan <alejandroautalan at gmail.com> wrote:

> Here's an example: http://linkode.org/tE01VF7sGPOXjvsWymBqi4

Quoting http://linkode.org/about:

"It's a kind of short living collaboration space, a dynamic pastebin."

When communicating on a *public mailing list*, please include all
relevant information *in the email message* where possible, to
maintain the integrity of the message, and the list archive. This
shows consideration to present-day readers who may not have access to
other protocols like http, and also to readers of the list archive in
the future, when the backers of some transient pastebin site may well
have abandoned it.

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root)

mfile = tk.Menu(menu)
mfile.add_command(label='Option 1')

medit = tk.Menu(menu)
medit.add_command(label='Option2')

menu.add_cascade(label='File', menu=mfile)
menu.add_cascade(label='Edit', menu=medit, state=tk.DISABLED)

root.configure(menu=menu)

#cb
enabled = False
def on_button_click():
    global enabled
    if enabled:
        enabled = False
        menu.entryconfigure(2, state=tk.DISABLED)
    else:
        enabled = True
        menu.entryconfigure(2, state=tk.NORMAL)

#button
b = tk.Button(root, text='Enable', command=on_button_click)
b.grid(padx=60, pady=20)

root.mainloop()

From bryan.oakley at gmail.com  Wed May 14 14:48:43 2014
From: bryan.oakley at gmail.com (Bryan Oakley)
Date: Wed, 14 May 2014 07:48:43 -0500
Subject: [Tkinter-discuss] How to enable/disable a menu?
In-Reply-To: <lktpjd$oqr$1@ger.gmane.org>
References: <lktpjd$oqr$1@ger.gmane.org>
Message-ID: <F052CE1D-8F62-4DE9-ACB6-446F2939EC65@gmail.com>

You can disable the button or menu item the menu is associated with, and that will disable the whole menu. 

--bryan


> On May 13, 2014, at 1:51 PM, Alan Gauld <alan.gauld at btinternet.com> wrote:
> 
> I have an app with a tabbed notebook. I want to
> only enable one of the main menus when the appropriate
> tab is selected. When the tab is deselected I want
> to disable the menu again.
> 
> I can't see any obvious properties in the Menu
> object. I can mess around with flags in the event
> handlers and change the menu font colours etc but
> that's pretty horrible. Is there anything better?
> 
> Using Python 3.3; on Linux and Windows 8 if it makes
> any difference.
> 
> TIA
> -- 
> Alan G
> Author of the Learn to Program web site
> http://www.alan-g.me.uk/
> http://www.flickr.com/photos/alangauldphotos
> 
> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> https://mail.python.org/mailman/listinfo/tkinter-discuss

From alan.gauld at btinternet.com  Wed May 14 17:59:35 2014
From: alan.gauld at btinternet.com (ALAN GAULD)
Date: Wed, 14 May 2014 16:59:35 +0100 (BST)
Subject: [Tkinter-discuss] How to enable/disable a menu?
In-Reply-To: <F052CE1D-8F62-4DE9-ACB6-446F2939EC65@gmail.com>
References: <lktpjd$oqr$1@ger.gmane.org>
 <F052CE1D-8F62-4DE9-ACB6-446F2939EC65@gmail.com>
Message-ID: <1400083175.92963.YahooMailNeo@web186001.mail.ir2.yahoo.com>




>You can disable the button or menu item the menu is associated with, and that will disable the whole menu.?Thats what I assumed but which proprerty disables a menu - or any other widget for that matter??
I'm assuming its an inherited atttribute of some sort?


Alan G
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From bryan.oakley at gmail.com  Wed May 14 18:25:10 2014
From: bryan.oakley at gmail.com (Bryan Oakley)
Date: Wed, 14 May 2014 11:25:10 -0500
Subject: [Tkinter-discuss] How to enable/disable a menu?
In-Reply-To: <1400083175.92963.YahooMailNeo@web186001.mail.ir2.yahoo.com>
References: <lktpjd$oqr$1@ger.gmane.org>
 <F052CE1D-8F62-4DE9-ACB6-446F2939EC65@gmail.com>
 <1400083175.92963.YahooMailNeo@web186001.mail.ir2.yahoo.com>
Message-ID: <CAKypQnz7nyxaKwtTExhYppJfae4-hiczoztLEuOpWUjyyqwPhA@mail.gmail.com>

The "state" attribute.

Here's a working example:

import Tkinter as tk

root = tk.Tk()
menubar = tk.Menu(root)
root.configure(menu=menubar)

exampleMenu = tk.Menu(root)
exampleMenu.add_command(label="One")
exampleMenu.add_command(label="Two")
exampleMenu.add_command(label="Three")
menubar.add_cascade(label="Example", menu=exampleMenu)

menubar.entryconfigure("Example", state="disabled")

root.mainloop()



On Wed, May 14, 2014 at 10:59 AM, ALAN GAULD <alan.gauld at btinternet.com>wrote:

>
>
> You can disable the button or menu item the menu is associated with, and
> that will disable the whole menu.
>
> Thats what I assumed but which proprerty disables a menu - or any other
> widget for that matter?
> I'm assuming its an inherited atttribute of some sort?
>
> Alan G
>
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From esg at unife.it  Thu May 15 00:22:11 2014
From: esg at unife.it (Josef Eschgfaeller)
Date: Thu, 15 May 2014 00:22:11 +0200
Subject: [Tkinter-discuss] Different fonts in 3.3?
Message-ID: <CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A@mail.gmail.com>

Ned Deily wrote:

> I wouldn't be surprised to find that the 3.1 version
> is linked with Tk 8.4 and 3.3 is with Tk 8.5.

Yes. I find this with tkinter.Tcl().eval('info patchlevel')
which gives 8.4.19 and 8.5.15.

> the Apple-supplied system Tcl/Tk 8.5

I installed today Python 3.4. But some time
ago I installed ActiveTcl 8.6, which in the
Frameworks directory is also Current.

Does this mean, that the new Python 3.4
has been installed with Apple's Tcl and
not with the ActiveTcl version?

Thanks
Josef Eschgfaeller

From alan.gauld at btinternet.com  Thu May 15 01:01:53 2014
From: alan.gauld at btinternet.com (ALAN GAULD)
Date: Thu, 15 May 2014 00:01:53 +0100 (BST)
Subject: [Tkinter-discuss] How to enable/disable a menu?
In-Reply-To: <CAKypQnz7nyxaKwtTExhYppJfae4-hiczoztLEuOpWUjyyqwPhA@mail.gmail.com>
References: <lktpjd$oqr$1@ger.gmane.org>
 <F052CE1D-8F62-4DE9-ACB6-446F2939EC65@gmail.com>
 <1400083175.92963.YahooMailNeo@web186001.mail.ir2.yahoo.com>
 <CAKypQnz7nyxaKwtTExhYppJfae4-hiczoztLEuOpWUjyyqwPhA@mail.gmail.com>
Message-ID: <1400108513.87072.YahooMailNeo@web186005.mail.ir2.yahoo.com>

Thanks Bryan,?
I played around with that and its exactly what I needed.

Thanks to all who sent comments.
?
Alan Gauld
Author of the Learn To Program website
http://www.alan-g.me.uk/

http://www.flickr.com/photos/alangauldphotos



>________________________________
> From: Bryan Oakley <bryan.oakley at gmail.com>
>To: ALAN GAULD <alan.gauld at btinternet.com> 
>Cc: "tkinter-discuss at python.org" <tkinter-discuss at python.org> 
>Sent: Wednesday, 14 May 2014, 17:25
>Subject: Re: [Tkinter-discuss] How to enable/disable a menu?
> 
>
>
>The "state" attribute.
>
>
>Here's a working example:
>
>
>import Tkinter as tk
>
>
>root = tk.Tk()
>menubar = tk.Menu(root)
>root.configure(menu=menubar)
>
>
>exampleMenu = tk.Menu(root)
>exampleMenu.add_command(label="One")
>exampleMenu.add_command(label="Two")
>exampleMenu.add_command(label="Three")
>menubar.add_cascade(label="Example", menu=exampleMenu)
>
>
>menubar.entryconfigure("Example", state="disabled")
>
>
>root.mainloop()
>
>
>
>
>
>On Wed, May 14, 2014 at 10:59 AM, ALAN GAULD <alan.gauld at btinternet.com> wrote:
>
>
>>
>>
>>>You can disable the button or menu item the menu is associated with, and that will disable the whole menu.?Thats what I assumed but which proprerty disables a menu - or any other widget for that matter??
>>I'm assuming its an inherited atttribute of some sort?
>>
>>
>>
>>Alan G
>
>
>
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From nad at acm.org  Thu May 15 03:17:34 2014
From: nad at acm.org (Ned Deily)
Date: Wed, 14 May 2014 18:17:34 -0700
Subject: [Tkinter-discuss] Different fonts in 3.3?
References: <CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A@mail.gmail.com>
Message-ID: <nad-3A3B91.18173414052014@news.gmane.org>

In article 
<CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A at mail.gmail.com>,
 Josef Eschgfaeller <esg at unife.it> wrote:
> I installed today Python 3.4. But some time
> ago I installed ActiveTcl 8.6, which in the
> Frameworks directory is also Current.
> 
> Does this mean, that the new Python 3.4
> has been installed with Apple's Tcl and
> not with the ActiveTcl version?

Python builds link with a specific version of Tk.  The python.org 64-bit 
installers for OS X link with a framework Tk 8.5, like current ActiveTcl 
8.5.x and the buggy Apple-supplied system Tk 8.5.x.  You can install 
both ActiveTcl 8.5.x and 8.6.x on OS X.  The python.org Python will 
automatically use the ActiveTcl 8.5 once it is installed.

More details here:

https://www.python.org/download/mac/tcltk/

-- 
 Ned Deily,
 nad at acm.org


From nad at acm.org  Thu May 15 03:22:04 2014
From: nad at acm.org (Ned Deily)
Date: Wed, 14 May 2014 18:22:04 -0700
Subject: [Tkinter-discuss] Different fonts in 3.3?
References: <CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A@mail.gmail.com>
Message-ID: <nad-4F21A1.18220414052014@news.gmane.org>

In article 
<CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A at mail.gmail.com>,
 Josef Eschgfaeller <esg at unife.it> wrote:
> Yes. I find this with tkinter.Tcl().eval('info patchlevel')
> which gives 8.4.19 and 8.5.15.
> 
> > the Apple-supplied system Tcl/Tk 8.5
> 
> I installed today Python 3.4. But some time
> ago I installed ActiveTcl 8.6, which in the
> Frameworks directory is also Current.
> 
> Does this mean, that the new Python 3.4
> has been installed with Apple's Tcl and
> not with the ActiveTcl version?

Ah, sorry, I overlooked the "8.5.15" above.  That seems to indicate that 
you've already installed ActiveTcl 8.5.15.  The fact that you've 
installed ActiveTcl 8.6.x, which changed the Current link in the Tcl and 
Tk frameworks, has no effect on which version a particular Python 
dynamically links to at run time.  The Current link affects building 
_tkinter, not running it.

-- 
 Ned Deily,
 nad at acm.org


From kw at codebykevin.com  Thu May 15 03:42:09 2014
From: kw at codebykevin.com (Kevin Walzer)
Date: Wed, 14 May 2014 21:42:09 -0400
Subject: [Tkinter-discuss] Different fonts in 3.3?
In-Reply-To: <CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A@mail.gmail.com>
References: <CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A@mail.gmail.com>
Message-ID: <53741B71.2040205@codebykevin.com>

On 5/14/14, 6:22 PM, Josef Eschgfaeller wrote:
> Ned Deily wrote:
>
>> I wouldn't be surprised to find that the 3.1 version
>> is linked with Tk 8.4 and 3.3 is with Tk 8.5.
>
> Yes. I find this with tkinter.Tcl().eval('info patchlevel')
> which gives 8.4.19 and 8.5.15.
>
>> the Apple-supplied system Tcl/Tk 8.5
>
> I installed today Python 3.4. But some time
> ago I installed ActiveTcl 8.6, which in the
> Frameworks directory is also Current.


If I understand you correctly, you have Python 3.1 which is linked with 
Tk 8.4, and you have just installed Python 3.4, which is linked with Tk 
8.5, and you see a difference in the fonts?

The most likely reason for this is that Tk 8.4 is built on the 
deprecated Carbon framework, which uses a deprecated font engine called 
ATUSI. The version of Tk 8.5 that you are using is built on the Cocoa 
framework, which uses the modern CoreText font rendering engine.

I'm not sure of all the low-level differences between CoreText and 
ATUSI, but there may very well be some subtle differences in how they look.

I was also going to ask if you are running on a Retina Display, which 
can affect text rendering, but that may not be relevant here.

--Kevin

-- 
Kevin Walzer
Code by Kevin/Mobile Code by Kevin
http://www.codebykevin.com
http://www.wtmobilesoftware.com

From esg at unife.it  Thu May 15 20:32:02 2014
From: esg at unife.it (Josef Eschgfaeller)
Date: Thu, 15 May 2014 20:32:02 +0200
Subject: [Tkinter-discuss] Different fonts in 3.3?
In-Reply-To: <53741B71.2040205@codebykevin.com>
References: <CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A@mail.gmail.com>
 <53741B71.2040205@codebykevin.com>
Message-ID: <CAFBvUasAOjMr-DcqZY9R=Qdoon6FyK-Qu8QPEKzyMnQiA80MqA@mail.gmail.com>

Ned Deily wrote:

> Ah, sorry, I overlooked the "8.5.15" above.
> That seems to indicate that you've already installed
> ActiveTcl 8.5.15.  The fact that you've installed
> ActiveTcl 8.6.x, which changed the Current link
> in the Tcl and Tk frameworks, has no effect on
> which version a particular Python dynamically links
> to at run time.  The Current link affects building
> _tkinter, not running it.

This is not clear to me. I had previously installed
both Tcl 8.5 and 8.6. Yesterday I installed Python 3.4.
Why did it not choose Tcl 8.6?

Not a Tkinter question: My Python Current link
points still to 2.7. Has this any meaning?

Kevin Walzer wrote:

> The most likely reason for this is that Tk 8.4 is
> built on the deprecated Carbon framework, which
> uses a deprecated font engine called ATUSI.

The differences are shown in

    felix.unife.it/++/tmp

My doubt is still, whether this Tk 8.5 is now
the right one. In that case I would simple change
the height of the text widgets. As you notice
in 8.5 there appears also a border on the
selected list element, which I do not like too
much, but it is not important.

Thanks
Josef Eschgfaeller

From nad at acm.org  Fri May 16 10:09:53 2014
From: nad at acm.org (Ned Deily)
Date: Fri, 16 May 2014 01:09:53 -0700
Subject: [Tkinter-discuss] Different fonts in 3.3?
References: <CAFBvUashE79zjwjR+eGEXmApyFir2Pm4ucpfiPx3ppyfBCJ6_A@mail.gmail.com>
 <53741B71.2040205@codebykevin.com>
 <CAFBvUasAOjMr-DcqZY9R=Qdoon6FyK-Qu8QPEKzyMnQiA80MqA@mail.gmail.com>
Message-ID: <nad-12BEB5.01095216052014@news.gmane.org>

In article 
<CAFBvUasAOjMr-DcqZY9R=Qdoon6FyK-Qu8QPEKzyMnQiA80MqA at mail.gmail.com>,
 Josef Eschgfaeller <esg at unife.it> wrote:
> Ned Deily wrote:
> > Ah, sorry, I overlooked the "8.5.15" above.
> > That seems to indicate that you've already installed
> > ActiveTcl 8.5.15.  The fact that you've installed
> > ActiveTcl 8.6.x, which changed the Current link
> > in the Tcl and Tk frameworks, has no effect on
> > which version a particular Python dynamically links
> > to at run time.  The Current link affects building
> > _tkinter, not running it. 
> This is not clear to me. I had previously installed
> both Tcl 8.5 and 8.6. Yesterday I installed Python 3.4.
> Why did it not choose Tcl 8.6?

Because Python's _tkinter C extension is built and linked with a 
particular compatibility version of Tk, i.e, the major version of Tcl 
and Tk are determined when Python itself is built, not when Python is 
installed or run.  Note the absolute path to the Tcl and Tk framework 
shared libraries: they both have explicit "8.5" values and not 
"Current". 

$ otool -L $(/usr/local/bin/python3.4 -c 'import _tkinter; 
print(_tkinter.__file__)')
/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/lib-dynlo
ad/_tkinter.so:
   /Library/Frameworks/Tcl.framework/Versions/8.5/Tcl (compatibility 
version 8.5.0, current version 8.5.15)
   /Library/Frameworks/Tk.framework/Versions/8.5/Tk (compatibility 
version 8.5.0, current version 8.5.15)
   /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
version 125.2.0)
 
> Not a Tkinter question: My Python Current link
> points still to 2.7. Has this any meaning?

As far as I know, the only practical effect the value of Current has is 
when you compile or link a C program which uses "-framework Python".  
The various compiler and linker components that support '-framework" 
will use the Current link in the selected framework.  When the program 
is linked, the resolved path to the framework shared library is embedded 
in the linker output file (executable, bundle, etc) as seen above with 
otool -L.

-- 
 Ned Deily,
 nad at acm.org


From Vasilis.Vlachoudis at cern.ch  Tue May 20 15:20:48 2014
From: Vasilis.Vlachoudis at cern.ch (Vasilis Vlachoudis)
Date: Tue, 20 May 2014 13:20:48 +0000
Subject: [Tkinter-discuss] Transient, grab and focus problems...
Message-ID: <0BC70B5D93E054469872FFD0FE07220EC09855D3@CERNXCHG52.cern.ch>

Dear all

in my application I have some toplevels that appear as InPlaceEdit for Listboxes when the user
clicks a field in a listbox.

This time I've tried to create a 2 nested level toplevel, but I am completely losing the focus on the
return and I didn't find any way to restore it.
Bellow there is a small example just to demonstrate the problem

By clicking the button it opens a toplevel, transient, overrideredirect(1) with a Text() which
has the grab and the focus.

Once you press a certain key (now the +) it opens a second level, another toplevel of a listbox with override and grab
On return from the second toplevel the focus is completly lost.
I cannot restore the focus on the text, I've tried to use focus_set(), grab_set etc.. but with no success.

Any ideas? Where did the focus go and how why the focus_set() doesn't work

Thanks in advance
Vasilis

from Tkinter import *

# ========================================================
class TopList(Toplevel):
    def __init__(self, master):
        Toplevel.__init__(self, master)
        self.overrideredirect(1)
        self.transient(master)
        self.bind("<Escape>", self.close)

        self.l = Listbox(self, bg="Yellow")
        self.l.pack()
        self.l.bind("<ButtonRelease-1>", self.close)

        for item in ["one","two","three","four"]: self.l.insert(END,item)
        self.result = ""

    # ------------------------------------------------
    def show(self):
        self.deiconify()
        self.wait_visibility()
        self.grab_set()
        self.l.focus_set()
        self.wait_window()
        self.grab_release()
        return self.result

    # ------------------------------------------------
    def close(self, event=None):
        if event:
            self.result = self.l.get(self.l.nearest(event.y))
        else:
            self.result = self.l.get(ACTIVE)
        self.destroy()

# ========================================================
class TopText(Toplevel):
    def __init__(self, master):
        Toplevel.__init__(self, master)
        self.overrideredirect(1)
        self.transient(master)
        self.bind("<Escape>", self.close)

        self.t = Text(self, bg="White")
        self.t.pack()
        self.t.bind("<Key-plus>", self.openList)

        self.result = ""

    # ------------------------------------------------
    def show(self):
        self.deiconify()
        self.wait_visibility()
        self.grab_set()
        self.t.focus_set()
        self.wait_window()
        return self.result

    # ------------------------------------------------
    def close(self, event=None):
        self.result = self.t.get(1.0,END)
        self.destroy()

    # ------------------------------------------------
    def openList(self, event=None):
        self.grab_release()
        result = TopList(self).show()
        self.t.focus_set()
        self.grab_set()
        self.t.insert("%s + 1 chars"%(INSERT),result)

# ========================================================
def openText():
    print TopText(tk).show()

tk = Tk()
e = Entry(tk)
e.pack()
e.focus_set()

b = Button(tk, text="Text", command=openText)
b.pack()

tk.mainloop()
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From Vasilis.Vlachoudis at cern.ch  Tue May 20 16:16:51 2014
From: Vasilis.Vlachoudis at cern.ch (Vasilis Vlachoudis)
Date: Tue, 20 May 2014 14:16:51 +0000
Subject: [Tkinter-discuss] Transient, grab and focus problems...
In-Reply-To: <0BC70B5D93E054469872FFD0FE07220EC09855D3@CERNXCHG52.cern.ch>
References: <0BC70B5D93E054469872FFD0FE07220EC09855D3@CERNXCHG52.cern.ch>
Message-ID: <0BC70B5D93E054469872FFD0FE07220EC098769B@CERNXCHG52.cern.ch>

Ok I think I found the problem/solution. After closing the toplevel with overrideredirect(()
the whole application is losing the focus, hence a simple focus_set() is not sufficient.
If I do a focus_force() on the toplevel then it works

V.

________________________________
From: Tkinter-discuss [tkinter-discuss-bounces+vasilis.vlachoudis=cern.ch at python.org] on behalf of Vasilis Vlachoudis [Vasilis.Vlachoudis at cern.ch]
Sent: 20 May 2014 15:20
To: tkinter-discuss at python.org
Subject: [Tkinter-discuss] Transient, grab and focus problems...

Dear all

in my application I have some toplevels that appear as InPlaceEdit for Listboxes when the user
clicks a field in a listbox.

This time I've tried to create a 2 nested level toplevel, but I am completely losing the focus on the
return and I didn't find any way to restore it.
Bellow there is a small example just to demonstrate the problem

By clicking the button it opens a toplevel, transient, overrideredirect(1) with a Text() which
has the grab and the focus.

Once you press a certain key (now the +) it opens a second level, another toplevel of a listbox with override and grab
On return from the second toplevel the focus is completly lost.
I cannot restore the focus on the text, I've tried to use focus_set(), grab_set etc.. but with no success.

Any ideas? Where did the focus go and how why the focus_set() doesn't work

Thanks in advance
Vasilis

from Tkinter import *

# ========================================================
class TopList(Toplevel):
    def __init__(self, master):
        Toplevel.__init__(self, master)
        self.overrideredirect(1)
        self.transient(master)
        self.bind("<Escape>", self.close)

        self.l = Listbox(self, bg="Yellow")
        self.l.pack()
        self.l.bind("<ButtonRelease-1>", self.close)

        for item in ["one","two","three","four"]: self.l.insert(END,item)
        self.result = ""

    # ------------------------------------------------
    def show(self):
        self.deiconify()
        self.wait_visibility()
        self.grab_set()
        self.l.focus_set()
        self.wait_window()
        self.grab_release()
        return self.result

    # ------------------------------------------------
    def close(self, event=None):
        if event:
            self.result = self.l.get(self.l.nearest(event.y))
        else:
            self.result = self.l.get(ACTIVE)
        self.destroy()

# ========================================================
class TopText(Toplevel):
    def __init__(self, master):
        Toplevel.__init__(self, master)
        self.overrideredirect(1)
        self.transient(master)
        self.bind("<Escape>", self.close)

        self.t = Text(self, bg="White")
        self.t.pack()
        self.t.bind("<Key-plus>", self.openList)

        self.result = ""

    # ------------------------------------------------
    def show(self):
        self.deiconify()
        self.wait_visibility()
        self.grab_set()
        self.t.focus_set()
        self.wait_window()
        return self.result

    # ------------------------------------------------
    def close(self, event=None):
        self.result = self.t.get(1.0,END)
        self.destroy()

    # ------------------------------------------------
    def openList(self, event=None):
        self.grab_release()
        result = TopList(self).show()
        self.t.focus_set()
        self.grab_set()
        self.t.insert("%s + 1 chars"%(INSERT),result)

# ========================================================
def openText():
    print TopText(tk).show()

tk = Tk()
e = Entry(tk)
e.pack()
e.focus_set()

b = Button(tk, text="Text", command=openText)
b.pack()

tk.mainloop()
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