From gnernest at yahoo.com  Thu Aug  3 10:33:59 2006
From: gnernest at yahoo.com (Mezesh)
Date: Thu, 3 Aug 2006 01:33:59 -0700 (PDT)
Subject: [Tkinter-discuss] Changing title bar color in Tkinter
Message-ID: <5628747.post@talk.nabble.com>


Hey,
Does anyone know if it's possible to change the bluish color of a Tkinter
window title bar
to some other color (especially on linux)?

Thanks,
Ernest
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From bwmetz at att.com  Thu Aug  3 18:56:03 2006
From: bwmetz at att.com (Metz, Bobby W, WWCS)
Date: Thu, 3 Aug 2006 11:56:03 -0500
Subject: [Tkinter-discuss] Changing title bar color in Tkinter
In-Reply-To: <5628747.post@talk.nabble.com>
Message-ID: <01D5341D04A2E64AB9B34576904733670236A5CF@OCCLUST01EVS1.ugd.att.com>

On Windows it's controlled by your desktop theme/settings, i.e. just
every other windows program.  I don't know about Linux as I don't use
tkinter there.

B

-----Original Message-----
From: tkinter-discuss-bounces at python.org
[mailto:tkinter-discuss-bounces at python.org]On Behalf Of Mezesh
Sent: Thursday, August 03, 2006 1:34 AM
To: tkinter-discuss at python.org
Subject: [Tkinter-discuss] Changing title bar color in Tkinter



Hey,
Does anyone know if it's possible to change the bluish color of a
Tkinter
window title bar
to some other color (especially on linux)?

Thanks,
Ernest
-- 
View this message in context:
http://www.nabble.com/Changing-title-bar-color-in-Tkinter-tf2044364.html
#a5628747
Sent from the Python - tkinter-discuss forum at Nabble.com.

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From jepler at unpythonic.net  Thu Aug  3 20:04:48 2006
From: jepler at unpythonic.net (Jeff Epler)
Date: Thu, 3 Aug 2006 13:04:48 -0500
Subject: [Tkinter-discuss] Changing title bar color in Tkinter
In-Reply-To: <5628747.post@talk.nabble.com>
References: <5628747.post@talk.nabble.com>
Message-ID: <20060803180447.GB11414@unpythonic.net>

No.  It is not Tkinter that draws the title bar of the window, but the
window manager.  

You can cause the window manager not to draw any decorations on the
window by setting the wm_override() but this also means you lose the
ability to move and resize the window in the normal way.  Usually this
is a bad choice for application windows.

Jeff

From jrcagle at juno.com  Sat Aug 12 23:13:53 2006
From: jrcagle at juno.com (Jeff Cagle)
Date: Sat, 12 Aug 2006 17:13:53 -0400
Subject: [Tkinter-discuss] Dialog placement relative to main window or frame
Message-ID: <44DE4491.10406@juno.com>

Hi all,

   I'm just learning, so I apologize in advance for a possibly dumb 
question.  I want to create an interface that has info at the top, 
buttons down the left side, and then a large space on the bottom right.  
When the user presses a button, the appropriate dialog box pops into the 
large space.  I believe I want a dialog, rather than a simple frame, in 
order to be able to have a nice title bar, make use of the "Close" 
button, etc.

Problem: How can I configure the dialog box so that it moves if the main 
window also moves?  I thought I might use an event trigger, somthing like:

mainw.bind("<When-I-Move>",func=mydialog.reconfig)
...

def mydialog.reconfig(event):
  get coords of mainw
  set new coords of mydialog


However, I can't find a "When the window moves" event in the docs.

Thoughts?

Thanks,
Jeff Cagle



From klappnase at web.de  Sun Aug 13 02:06:52 2006
From: klappnase at web.de (Michael Lange)
Date: Sun, 13 Aug 2006 02:06:52 +0200
Subject: [Tkinter-discuss] Dialog placement relative to main window or
 frame
In-Reply-To: <44DE4491.10406@juno.com>
References: <44DE4491.10406@juno.com>
Message-ID: <20060813020652.10b597e8.klappnase@web.de>

On Sat, 12 Aug 2006 17:13:53 -0400
Jeff Cagle <jrcagle at juno.com> wrote:

> Hi all,
> 
>    I'm just learning, so I apologize in advance for a possibly dumb 
> question.  I want to create an interface that has info at the top, 
> buttons down the left side, and then a large space on the bottom right.  
> When the user presses a button, the appropriate dialog box pops into the 
> large space.  I believe I want a dialog, rather than a simple frame, in 
> order to be able to have a nice title bar, make use of the "Close" 
> button, etc.
> 
> Problem: How can I configure the dialog box so that it moves if the main 
> window also moves?  I thought I might use an event trigger, somthing like:
> 
> mainw.bind("<When-I-Move>",func=mydialog.reconfig)
> ...
> 
> def mydialog.reconfig(event):
>   get coords of mainw
>   set new coords of mydialog
> 
> 
> However, I can't find a "When the window moves" event in the docs.
> 

Hi Jeff,

the '<Configure>' event seems to do what you want (at least on my linux box
with IceWm).

I hope this helps

Michael

From peru at esrf.fr  Fri Aug 18 15:11:00 2006
From: peru at esrf.fr (Michel Peru)
Date: Fri, 18 Aug 2006 15:11:00 +0200
Subject: [Tkinter-discuss] Cascade menu issue
Message-ID: <5.2.0.9.1.20060818150824.022c74c0@pcmp2.esrf.fr>


Hi all,

Is there a way to make a cascade menu open when the mouse pointer simply 
stays on the corresponding menu entry?

That works "naturally" under Windows, but under Linux one must click on the 
menu entry in order to make the cascade menu open.

Thank you for helping.

Michel

-----------------------------------------------------------
Michel PERU peru at esrf.fr tel:04-76-88-22-46
ESRF 6 rue J.Horowitz 38043 Grenoble Cedex 09
-----------------------------------------------------------


From jrcagle at juno.com  Sun Aug 20 07:31:51 2006
From: jrcagle at juno.com (Jeff Cagle)
Date: Sun, 20 Aug 2006 01:31:51 -0400
Subject: [Tkinter-discuss] Entry widget max size
In-Reply-To: <mailman.34.1155463209.10589.tkinter-discuss@python.org>
References: <mailman.34.1155463209.10589.tkinter-discuss@python.org>
Message-ID: <44E7F3C7.3040206@juno.com>

I would like to be able to cap the size of an entry so that the user can 
only type a max of n characters.   In practice, it may not matter, but 
it seems like good programming practice to have a cap on input buffers. :-)

Is there any way to do such a thing?

Thanks,
Jeff Cagle



From jrcagle at juno.com  Sun Aug 20 07:35:32 2006
From: jrcagle at juno.com (Jeff Cagle)
Date: Sun, 20 Aug 2006 01:35:32 -0400
Subject: [Tkinter-discuss] listbox formatting
In-Reply-To: <mailman.34.1155463209.10589.tkinter-discuss@python.org>
References: <mailman.34.1155463209.10589.tkinter-discuss@python.org>
Message-ID: <44E7F4A4.4070604@juno.com>

I have strings that are composed of multiple properties within an 
object.  I wanted to format the strings so that they came out nicely in 
a listbox.  However, listbox widgets choke on the '\t' character, so I 
tried to roll my own:

def get_lbstring(self):
  s = self.datestring
  return s + " " * (20 - len(s)) + self.name

unfortunately, listboxes *also* have variable-width fonts (at least as 
the default).  Short of changing to Courier font, is there a way to get 
items to line up in a listbox?

Thanks,
Jeff Cagle



From chris at niekel.net  Sun Aug 20 08:57:22 2006
From: chris at niekel.net (Chris Niekel)
Date: Sun, 20 Aug 2006 08:57:22 +0200
Subject: [Tkinter-discuss] listbox formatting
In-Reply-To: <44E7F4A4.4070604@juno.com>
References: <mailman.34.1155463209.10589.tkinter-discuss@python.org>
	<44E7F4A4.4070604@juno.com>
Message-ID: <20060820065722.GH13685@kira.niekel.net>

On Sun, Aug 20, 2006 at 01:35:32AM -0400, Jeff Cagle wrote:
> unfortunately, listboxes *also* have variable-width fonts (at least as 
> the default).  Short of changing to Courier font, is there a way to get 
> items to line up in a listbox?

If you want to have columns in your list, it's called a table.
Unfortunately, that's not standard in Tkinter. 
tktable.sourceforge.net gets pointed to a lot.

Good luck!

Chris Niekel

From jrcagle at juno.com  Sun Aug 20 18:42:02 2006
From: jrcagle at juno.com (Jeff Cagle)
Date: Sun, 20 Aug 2006 12:42:02 -0400
Subject: [Tkinter-discuss] Tkinter-discuss Digest, Vol 30, Issue 4
In-Reply-To: <mailman.38.1156068009.8687.tkinter-discuss@python.org>
References: <mailman.38.1156068009.8687.tkinter-discuss@python.org>
Message-ID: <44E890DA.2070405@juno.com>

I got this reply from Cameron Laird and thought it would be worth 
passing on.  Thanks to all for their input on this and the other question.

On Sun, Aug 20, 2006 at 01:31:51AM -0400, Jeff Cagle wrote:
			.
			.
			.

>> I would like to be able to cap the size of an entry so that the user can 
>> only type a max of n characters.   In practice, it may not matter, but 
>> it seems like good programming practice to have a cap on input buffers.  :-) 
>> 
>> Is there any way to do such a thing?
>  
>
			.
			.
			.
Yes.

You can use PMW; an example would be

    Pmw.EntryField(validate = {'max': 13})

Alternatively, you can write you own validatecommand for the Entry.

Also, it might interest you that an Entry *can* be multi-line, with
built-in wrapping.






From Cameron at phaseit.net  Sun Aug 20 18:28:24 2006
From: Cameron at phaseit.net (Cameron Laird)
Date: Sun, 20 Aug 2006 16:28:24 +0000
Subject: [Tkinter-discuss] Entry widget max size
In-Reply-To: <44E7F3C7.3040206@juno.com>
References: <mailman.34.1155463209.10589.tkinter-discuss@python.org>
	<44E7F3C7.3040206@juno.com>
Message-ID: <20060820162824.GA8806@lairds.us>

On Sun, Aug 20, 2006 at 01:31:51AM -0400, Jeff Cagle wrote:
			.
			.
			.
> I would like to be able to cap the size of an entry so that the user can 
> only type a max of n characters.   In practice, it may not matter, but 
> it seems like good programming practice to have a cap on input buffers. :-)
> 
> Is there any way to do such a thing?
			.
			.
			.
Yes.

You can use PMW; an example would be

    Pmw.EntryField(validate = {'max': 13})

Alternatively, you can write you own validatecommand for the Entry.

Also, it might interest you that an Entry *can* be multi-line, with
built-in wrapping.

From Cameron at phaseit.net  Mon Aug 21 00:15:03 2006
From: Cameron at phaseit.net (Cameron Laird)
Date: Sun, 20 Aug 2006 22:15:03 +0000
Subject: [Tkinter-discuss] listbox formatting
In-Reply-To: <44E7F4A4.4070604@juno.com>
References: <mailman.34.1155463209.10589.tkinter-discuss@python.org>
	<44E7F4A4.4070604@juno.com>
Message-ID: <20060820221503.GC28613@lairds.us>

On Sun, Aug 20, 2006 at 01:35:32AM -0400, Jeff Cagle wrote:
			.
			.
			.
> I have strings that are composed of multiple properties within an 
> object.  I wanted to format the strings so that they came out nicely in 
> a listbox.  However, listbox widgets choke on the '\t' character, so I 
> tried to roll my own:
> 
> def get_lbstring(self):
>   s = self.datestring
>   return s + " " * (20 - len(s)) + self.name
> 
> unfortunately, listboxes *also* have variable-width fonts (at least as 
> the default).  Short of changing to Courier font, is there a way to get 
> items to line up in a listbox?
			.
			.
			.
Let's be precise:  do listboxes treat \t as ' '?  Is
that what you mean by "choke"?

To get items to line up in a listbox ... well, the
easiest way is to use someone else's work.  Look into
one of the table widgets or extensions.  I like the 
tablelist for Tk work; I haven't had occasion yet to
wrap it for use in Tkinter.

From jrcagle at juno.com  Tue Aug 22 05:03:57 2006
From: jrcagle at juno.com (Jeff Cagle)
Date: Mon, 21 Aug 2006 23:03:57 -0400
Subject: [Tkinter-discuss] validating an entry
In-Reply-To: <mailman.32.1156154422.22049.tkinter-discuss@python.org>
References: <mailman.32.1156154422.22049.tkinter-discuss@python.org>
Message-ID: <44EA741D.8030509@juno.com>

So it turned out that validating was not too hard, but you had to Google 
for the documentation.  Your name, Cameron, showed up a couple of times...

Here's the code:

# Testing an edit box with validation

from Tkinter import *


class MyEntry(Entry):

    def __init__(self, master, maxchars):
        Entry.__init__(self, master, validate = "key", 
validatecommand=self.validatecommand)
        self.MAX = maxchars

    def validatecommand(self, *args):
        return len(self.get()) < self.MAX 


if __name__ == '__main__':
    tkmain = Tk()
    e = MyEntry(tkmain, 5)
    e.grid()
    tkmain.mainloop()

The validatecommand has to return a Boolean.  I have no idea of the 
following, and haven't been able to find answers yet online:

1) what args are passed to validatecommand?  Obviously *args scoops them 
up, but would one ever want to use them?
2) what values other than "key" are acceptable to validate?

Thanks,
Jeff Cagle



From klappnase at web.de  Tue Aug 22 11:49:28 2006
From: klappnase at web.de (Michael Lange)
Date: Tue, 22 Aug 2006 11:49:28 +0200
Subject: [Tkinter-discuss] validating an entry
In-Reply-To: <44EA741D.8030509@juno.com>
References: <mailman.32.1156154422.22049.tkinter-discuss@python.org>
	<44EA741D.8030509@juno.com>
Message-ID: <20060822114928.6268e128.klappnase@web.de>

On Mon, 21 Aug 2006 23:03:57 -0400
Jeff Cagle <jrcagle at juno.com> wrote:

> So it turned out that validating was not too hard, but you had to Google 
> for the documentation.  Your name, Cameron, showed up a couple of times...
> 
> Here's the code:
> 
> # Testing an edit box with validation
> 
> from Tkinter import *
> 
> 
> class MyEntry(Entry):
> 
>     def __init__(self, master, maxchars):
>         Entry.__init__(self, master, validate = "key", 
> validatecommand=self.validatecommand)
>         self.MAX = maxchars
> 
>     def validatecommand(self, *args):
>         return len(self.get()) < self.MAX 
> 
> 
> if __name__ == '__main__':
>     tkmain = Tk()
>     e = MyEntry(tkmain, 5)
>     e.grid()
>     tkmain.mainloop()
> 
> The validatecommand has to return a Boolean.  I have no idea of the 
> following, and haven't been able to find answers yet online:
> 
> 1) what args are passed to validatecommand?  Obviously *args scoops them 
> up, but would one ever want to use them?
> 2) what values other than "key" are acceptable to validate?
> 

Hi Jeff,

unfortunately these things do not seem to be documented for Tkinter, the Tk manpages
are your friend. From the entry man page:

       Command-Line Name:-validate
       Database Name:  validate
       Database Class: Validate

              Specifies  the  mode  in  which validation should operate: none,
              focus, focusin, focusout, key, or all.   It  defaults  to  none.
              When  you  want validation, you must explicitly state which mode
              you wish to use.  See Validation below for more.

VALIDATION
       Validation  works  by  setting  the  validateCommand option to a script
       which will be evaluated according to the validate option as follows:


       none      Default.  This means no validation will occur.

       focus     validateCommand will be called when  the  entry  receives  or
                 loses focus.

       focusin   validateCommand will be called when the entry receives focus.

       focusout  validateCommand will be called when the entry loses focus.

       key       validateCommand will be called when the entry is edited.

       all       validateCommand will be called for all above conditions.

       It is possible to perform percent substitutions on the  validateCommand
       and  invalidCommand, just as you would in a bind script.  The following
       substitutions are recognized:


       %d   Type of action: 1 for insert, 0  for  delete,  or  -1  for  focus,
            forced or textvariable validation.

       %i   Index of char string to be inserted/deleted, if any, otherwise -1.

       %P   The value of the entry if the edit is allowed.  If you are config-
            uring  the  entry  widget to have a new textvariable, this will be
            the value of that textvariable.

       %s   The current value of entry prior to editing.

       %S   The text string being inserted/deleted, if any, {} otherwise.

       %v   The type of validation currently set.

       %V   The type of validation that triggered the callback (key,  focusin,
            focusout, forced).

       %W   The name of the entry widget.


Passing these percent substitutions in Tkinter is a little tricky. Here is a code
snippet I used to validate a Spinbox widget, it should work with an Entry just the
same I think:

        vcmd = (self.register(self._validate), '%s', '%P')
        self.config(vcmd=vcmd)

    def _validate(self, old, new):
        (...)

Remember that Tk will pass any values to the validatecommand as strings, even if you
would expect an integer (as in '%i').

I hope this helps

Michael

From jepler at unpythonic.net  Wed Aug 23 04:28:32 2006
From: jepler at unpythonic.net (Jeff Epler)
Date: Tue, 22 Aug 2006 21:28:32 -0500
Subject: [Tkinter-discuss] Cascade menu issue
In-Reply-To: <5.2.0.9.1.20060818150824.022c74c0@pcmp2.esrf.fr>
References: <5.2.0.9.1.20060818150824.022c74c0@pcmp2.esrf.fr>
Message-ID: <20060823022832.GC4330@unpythonic.net>

The "activate_cascade" code seems to accomplish what you want.  I tested it
only on Ubuntu 5.10, so your mileage may vary with different Linux
distributions and Tk versions.

Jeff

# ----------------------------------------------------------------------
import Tkinter

app = Tkinter.Tk()
menubar = Tkinter.Menu(app)
app.configure(menu=menubar)

# ----------------------------------------------------------------------
# Here's the important bit
activate_cascade = """\
    if {[%W cget -type] != {menubar} && [%W type active] == {cascade}} {
        %W postcascade active
    }
"""
app.bind_class("Menu", "<<MenuSelect>>", activate_cascade)
# ----------------------------------------------------------------------

# Some testing code
filemenu = Tkinter.Menu(menubar)
menubar.add_cascade(label="File", menu=filemenu)

newmenu = Tkinter.Menu(filemenu)
filemenu.add_cascade(label="New", menu=newmenu)

newmenu.add_command(label="Text")
newmenu.add_command(label="Image")
newmenu.add_command(label="Folder")

filemenu.add_command(label="Quit", command=app.destroy)

app.mainloop()
# ----------------------------------------------------------------------

From rstoss at online.de  Thu Aug 31 23:02:31 2006
From: rstoss at online.de (Reiner M. Stoss)
Date: Thu, 31 Aug 2006 23:02:31 +0200
Subject: [Tkinter-discuss] How to get DIB into Tkinter frame?
Message-ID: <44F76A87.15751.277F60@localhost>

Folks, I have a problem.

I have a scriptable software that works with
images in FITS format (astronomical images).
It can generate Windows device-independent bitmaps (DIB)
and paint them as picture into any device context including
Picture controls in Visual Basic, etc.

Here is VB sample code that works for me:

---
Private Sub Command1_Click() 

Set p = CreateObject("PinPoint.Plate") 
p.AttachFITS "M:\Images\LaSagra\20060828\012128+170000-sagra21-S001-R001.fts" 
Set m = p.NewPlateDIB() 
m.Create 1, 1, 1, 1 
m.Render 60000, 0 
m.PaintPicture Picture1.hDC 
p.DetachFITS 

End Sub 
---

The PaintPicture method sends the picture into
the PictureBox Picture1.

Now how to do the same in Python/Tkinter?
I have something as this:

---
p = win32com.client.dynamic.Dispatch('PinPoint.Plate') 
p.AttachFITS('M:/Images/LaSagra/20060828/012128+170000-sagra21-S001-R001.fts') 
m = p.NewPlateDIB() 
m.Create(1, 1, 1, 1) 
m.Render(60000, 0) 
m.PaintPicture(im) 
#Here some Tkinter lines like root = Tk() etc.
def expose(event): 
    dib = ImageWin.Dib(im) 
    dib.expose(ImageWin.HDC(left_frame.winfo_id())) 

left_frame.bind("", expose) 
p.DetachFITS() 
---

But it crashes with this message:

---
Traceback (most recent call last):
  File "L:\pin.py", line 91, in ?
    m.PaintPicture(im)
NameError: name 'im' is not defined
---

Clearly the problem is the argument I provide when
I call PaintPicture(). So how to get the picture painted
by PaintPicture() into a Tkinter frame?

Thanks,
Reiner