From bob at passcal.nmt.edu  Tue Sep  1 20:07:45 2009
From: bob at passcal.nmt.edu (Bob Greschke)
Date: Tue, 1 Sep 2009 12:07:45 -0600
Subject: [Tkinter-discuss] Canvas tag bindings not going away?
Message-ID: <44280719-37A2-4467-84B5-656167602D39@passcal.nmt.edu>

Doesn't ACanvas.delete(ALL) get rid of bindings too?  I'm drawing  
regular map dots (create_oval) on a Canvas "map" and each one gets a  
Tag, like "P1", "P2", etc.  I do a tag_bind to <Button-3> to get a  
popup menu item for each dot.  Everything works fine.

I then have two radiobuttons, one for a regular map (described above),  
and one for drawing the dots a different color depending on  
elevation.  When the Redraw button is hit with the elevation map mode  
selected the canvas gets cleared, the background color gets changed,  
a .delete(ALL) is done (and a .find_all() returns ()), I redraw the  
create_oval()s with the same kind of Tags ("P1", "P2", etc.), but  
without doing a tag_bind to <Button-3> (same bunch of code, just with  
an if-statement to control which kind of dot gets drawn).  The new  
dots still react to a <Button-3> event like as if the TAG is still  
bound to the <Button-3> event.  If I start all over, but draw the  
elevation map first then the dots don't do the popup menu.  If I then  
redraw with the normal map option the popup menu bind gets bound to  
the dots from that point on.

Do I have to loop through all of the items and delete the tags before  
doing the .delete(ALL) or something?  This could be major.  I use a  
lot of Tags and binds on a lot of Canvases, but I've never noticed  
this before.  It's doing this on several OSs and versions of  
everything, so it must be me.

Thanks!

Bob


From klappnase at web.de  Tue Sep  1 20:57:51 2009
From: klappnase at web.de (Michael Lange)
Date: Tue, 1 Sep 2009 20:57:51 +0200
Subject: [Tkinter-discuss] Canvas tag bindings not going away?
In-Reply-To: <44280719-37A2-4467-84B5-656167602D39@passcal.nmt.edu>
References: <44280719-37A2-4467-84B5-656167602D39@passcal.nmt.edu>
Message-ID: <20090901205751.9b670dde.klappnase@web.de>

Hi Bob,

On Tue, 1 Sep 2009 12:07:45 -0600
Bob Greschke <bob at passcal.nmt.edu> wrote:

> Doesn't ACanvas.delete(ALL) get rid of bindings too?  I'm drawing  
> regular map dots (create_oval) on a Canvas "map" and each one gets a  
> Tag, like "P1", "P2", etc.  I do a tag_bind to <Button-3> to get a  
> popup menu item for each dot.  Everything works fine.
> 
> I then have two radiobuttons, one for a regular map (described
> above), and one for drawing the dots a different color depending on  
> elevation.  When the Redraw button is hit with the elevation map
> mode selected the canvas gets cleared, the background color gets
> changed, a .delete(ALL) is done (and a .find_all() returns ()), I
> redraw the create_oval()s with the same kind of Tags ("P1", "P2",
> etc.), but without doing a tag_bind to <Button-3> (same bunch of
> code, just with an if-statement to control which kind of dot gets
> drawn).  The new dots still react to a <Button-3> event like as if
> the TAG is still bound to the <Button-3> event.  If I start all over,
> but draw the elevation map first then the dots don't do the popup
> menu.  If I then redraw with the normal map option the popup menu
> bind gets bound to the dots from that point on.
> 
> Do I have to loop through all of the items and delete the tags
> before doing the .delete(ALL) or something?  This could be major.  I
> use a lot of Tags and binds on a lot of Canvases, but I've never
> noticed this before.  It's doing this on several OSs and versions of  
> everything, so it must be me.
> 
> Thanks!
> 
> Bob
> 

If I understand you correctly, what you describe is what I think that
tag bindings are supposed to do. I tried the following:

>>> from Tkinter import *
>>> c = Canvas()
>>> c.pack()
>>> def test(ev):
...     print 'foo'
... 
>>> c.tag_bind('tag_foo', '<1>', test)
>>> c.create_rectangle(0, 0, 100, 100, fill='blue', tags=('tag_foo'))
1
>>> foo
foo
foo
foo

The "foo"s at the end of the snippet are of course from clicking the
blue rectangle. The point here is, that the tag-binding is obviously
active without any items being created, and I believe that is exactly
what it is for; if you want the binding to be removed when the item is
deleted, you should bind to the item-id instead, or maybe use
tag_unbind() to remove the bindings.

I hope this helps

Michael




From bob at passcal.nmt.edu  Tue Sep  1 22:08:42 2009
From: bob at passcal.nmt.edu (Bob Greschke)
Date: Tue, 1 Sep 2009 14:08:42 -0600
Subject: [Tkinter-discuss] Canvas tag bindings not going away?
In-Reply-To: <20090901205751.9b670dde.klappnase@web.de>
References: <44280719-37A2-4467-84B5-656167602D39@passcal.nmt.edu>
	<20090901205751.9b670dde.klappnase@web.de>
Message-ID: <2E7330A9-FDAB-4D1B-9391-394FFA63DB1D@passcal.nmt.edu>

> If I understand you correctly, what you describe is what I think that
> tag bindings are supposed to do. I tried the following:
>
>>>> from Tkinter import *
>>>> c = Canvas()
>>>> c.pack()
>>>> def test(ev):
> ...     print 'foo'
> ...
>>>> c.tag_bind('tag_foo', '<1>', test)
>>>> c.create_rectangle(0, 0, 100, 100, fill='blue', tags=('tag_foo'))
> 1
>>>> foo
> foo
> foo
> foo
>
> The "foo"s at the end of the snippet are of course from clicking the
> blue rectangle. The point here is, that the tag-binding is obviously
> active without any items being created, and I believe that is exactly
> what it is for; if you want the binding to be removed when the item is
> deleted, you should bind to the item-id instead, or maybe use
> tag_unbind() to remove the bindings.
>
> I hope this helps
>
> Michael

You are too smart.  I've only been goofing with this stuff for about 7  
years.  Looking through my code I now understand that I didn't know  
anything. :)  I've been binding to the tag in some places and to the  
"ID" of the create_x item in others.  NOW I get it!  That's exactly  
what was going on.  A big thanks!

Bob


From greg.ewing at canterbury.ac.nz  Wed Sep  2 00:23:19 2009
From: greg.ewing at canterbury.ac.nz (Greg Ewing)
Date: Wed, 02 Sep 2009 10:23:19 +1200
Subject: [Tkinter-discuss] Canvas tag bindings not going away?
In-Reply-To: <44280719-37A2-4467-84B5-656167602D39@passcal.nmt.edu>
References: <44280719-37A2-4467-84B5-656167602D39@passcal.nmt.edu>
Message-ID: <4A9D9ED7.3020604@canterbury.ac.nz>

Bob Greschke wrote:
> I redraw the  create_oval()s 
> with the same kind of Tags ("P1", "P2", etc.), but  without doing a 
> tag_bind to <Button-3> ...  The new  dots still react to 
> a <Button-3> event like as if the TAG is still  bound to the <Button-3> 
> event.

It probably is. You've told the canvas "<Button-3> on any
item tagged with "P3" does this", and haven't rescinded that
instruction.

In other words, the tag bindings are associated with the
canvas itself, not the individual items.

It sounds like you will indeed have to undo the tag
bindings explicitly.

Alternatively, come up with a tagging scheme that allows
you to re-use the same tags for the same bindings, instead
of inventing a new tag for each canvas item that you want
to bind an event to.

-- 
Greg

From supersimha at gmail.com  Wed Sep  2 18:33:43 2009
From: supersimha at gmail.com (simha)
Date: Wed, 2 Sep 2009 09:33:43 -0700 (PDT)
Subject: [Tkinter-discuss]  Draw a table in Python 3.1
Message-ID: <25261023.post@talk.nabble.com>


Hi all. I am very new to the world of python. I am desining a GUI using the
tkinter module and would like to include a table of 6 columns and n rows. I
am developing this code in windows xp. I downloaded a tktable module. But
not able to install this. Please help me in this regard. Thanks in advance
-- 
View this message in context: http://www.nabble.com/Draw-a-table-in-Python-3.1-tp25261023p25261023.html
Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.


From peter.milliken at gmail.com  Fri Sep  4 00:42:18 2009
From: peter.milliken at gmail.com (Peter Milliken)
Date: Fri, 4 Sep 2009 08:42:18 +1000
Subject: [Tkinter-discuss] Draw a table in Python 3.1
In-Reply-To: <25261023.post@talk.nabble.com>
References: <25261023.post@talk.nabble.com>
Message-ID: <791153ba0909031542r7ed06bdetb13251f6303c576f@mail.gmail.com>

So what was the problem?
I am assuming you are referring to the tktable available from
http://tktable.sourceforge.net/?
Peter

On Thu, Sep 3, 2009 at 2:33 AM, simha <supersimha at gmail.com> wrote:

>
> Hi all. I am very new to the world of python. I am desining a GUI using the
> tkinter module and would like to include a table of 6 columns and n rows. I
> am developing this code in windows xp. I downloaded a tktable module. But
> not able to install this. Please help me in this regard. Thanks in advance
> --
> View this message in context:
> http://www.nabble.com/Draw-a-table-in-Python-3.1-tp25261023p25261023.html
> Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.
>
> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> http://mail.python.org/mailman/listinfo/tkinter-discuss
>
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From peter.milliken at gmail.com  Fri Sep  4 01:13:28 2009
From: peter.milliken at gmail.com (Peter Milliken)
Date: Fri, 4 Sep 2009 09:13:28 +1000
Subject: [Tkinter-discuss] Draw a table in Python 3.1
In-Reply-To: <791153ba0909031542r7ed06bdetb13251f6303c576f@mail.gmail.com>
References: <25261023.post@talk.nabble.com>
	<791153ba0909031542r7ed06bdetb13251f6303c576f@mail.gmail.com>
Message-ID: <791153ba0909031613h3a0b06s625b1ca8b0caf4f9@mail.gmail.com>

BTW, I have been looking at the Tktable from that source and it doesn't look
like a straightforward process at all! Despite the fact the author of
README.txt claims you can build it with cygwin if TEA is installed (not
really clear what TEA is although I found a web-page, but the configure
script tells me I have it installed on my system :-)), I certainly can't!
If you then try and go down the route of using Visual Studio then you run
into having to have Tcl8.4 installed - which I don't and since Tcl appears
to be up to 8.5 and 8.6 makes it even harder!

So I would suggest that you contact the folk at the sourceforge project and
ask somebody to email you a pre-built windows set of binaries (and ask them
to work a bit harder on getting their Windows/cygwin port working :-)).

Peter

On Fri, Sep 4, 2009 at 8:42 AM, Peter Milliken <peter.milliken at gmail.com>wrote:

> So what was the problem?
> I am assuming you are referring to the tktable available from
> http://tktable.sourceforge.net/?
> Peter
>
>
> On Thu, Sep 3, 2009 at 2:33 AM, simha <supersimha at gmail.com> wrote:
>
>>
>> Hi all. I am very new to the world of python. I am desining a GUI using
>> the
>> tkinter module and would like to include a table of 6 columns and n rows.
>> I
>> am developing this code in windows xp. I downloaded a tktable module. But
>> not able to install this. Please help me in this regard. Thanks in advance
>> --
>> View this message in context:
>> http://www.nabble.com/Draw-a-table-in-Python-3.1-tp25261023p25261023.html
>> Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.
>>
>> _______________________________________________
>> Tkinter-discuss mailing list
>> Tkinter-discuss at python.org
>> http://mail.python.org/mailman/listinfo/tkinter-discuss
>>
>
>
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From ggpolo at gmail.com  Fri Sep  4 02:59:24 2009
From: ggpolo at gmail.com (Guilherme Polo)
Date: Thu, 3 Sep 2009 21:59:24 -0300
Subject: [Tkinter-discuss] Draw a table in Python 3.1
In-Reply-To: <791153ba0909031613h3a0b06s625b1ca8b0caf4f9@mail.gmail.com>
References: <25261023.post@talk.nabble.com>
	<791153ba0909031542r7ed06bdetb13251f6303c576f@mail.gmail.com> 
	<791153ba0909031613h3a0b06s625b1ca8b0caf4f9@mail.gmail.com>
Message-ID: <ac2200130909031759k279fe18cvbf56f64e70ea5779@mail.gmail.com>

2009/9/3 Peter Milliken <peter.milliken at gmail.com>:
> BTW, I have been looking at the Tktable from that source and it doesn't look
> like a straightforward process at all! Despite the fact the author of
> README.txt claims you can build it with cygwin if TEA is installed (not
> really clear what TEA is although I found a web-page, but the configure
> script tells me I have it installed on my system :-)), I certainly can't!
> If you then try and go down the route of using Visual Studio then you run
> into having to have Tcl8.4 installed - which I don't and since Tcl appears
> to be up to 8.5 and 8.6 makes it even harder!
> So I would suggest that you contact the folk at the sourceforge project and
> ask somebody to email you a pre-built windows set of binaries (and ask them
> to work a bit harder on getting their Windows/cygwin port working :-)).
> Peter
>

I would suggest using the Tcl/Tk distribution from ActiveState, that
is what I've done to (easily) use tktable on Windows before.


-- 
-- Guilherme H. Polo Goncalves

From supersimha at gmail.com  Fri Sep  4 10:08:05 2009
From: supersimha at gmail.com (simha)
Date: Fri, 4 Sep 2009 01:08:05 -0700 (PDT)
Subject: [Tkinter-discuss] Draw a table in Python 3.1
In-Reply-To: <ac2200130909031759k279fe18cvbf56f64e70ea5779@mail.gmail.com>
References: <25261023.post@talk.nabble.com>
	<791153ba0909031542r7ed06bdetb13251f6303c576f@mail.gmail.com>
	<791153ba0909031613h3a0b06s625b1ca8b0caf4f9@mail.gmail.com>
	<ac2200130909031759k279fe18cvbf56f64e70ea5779@mail.gmail.com>
Message-ID: <25289513.post@talk.nabble.com>


Hi Guilherme Polo,
  Can you please me in a little detail how to install tktable module with
the python 3.1 version. I really need it badly and since you have used it,
can you please read me through the steps. Also if you have a working Tktable
module, can you please provide it to me. My mail id is supersimha at gmail.com
Thanks in advance

Guilherme Polo wrote:
> 
> 2009/9/3 Peter Milliken <peter.milliken at gmail.com>:
>> BTW, I have been looking at the Tktable from that source and it doesn't
>> look
>> like a straightforward process at all! Despite the fact the author of
>> README.txt claims you can build it with cygwin if TEA is installed (not
>> really clear what TEA is although I found a web-page, but the configure
>> script tells me I have it installed on my system :-)), I certainly can't!
>> If you then try and go down the route of using Visual Studio then you run
>> into having to have Tcl8.4 installed - which I don't and since Tcl
>> appears
>> to be up to 8.5 and 8.6 makes it even harder!
>> So I would suggest that you contact the folk at the sourceforge project
>> and
>> ask somebody to email you a pre-built windows set of binaries (and ask
>> them
>> to work a bit harder on getting their Windows/cygwin port working :-)).
>> Peter
>>
> 
> I would suggest using the Tcl/Tk distribution from ActiveState, that
> is what I've done to (easily) use tktable on Windows before.
> 
> 
> -- 
> -- Guilherme H. Polo Goncalves
> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> http://mail.python.org/mailman/listinfo/tkinter-discuss
> 
> 

-- 
View this message in context: http://www.nabble.com/Draw-a-table-in-Python-3.1-tp25261023p25289513.html
Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.


From harm.kirchhoff at web.de  Mon Sep  7 03:28:38 2009
From: harm.kirchhoff at web.de (Harm Kirchhoff)
Date: Mon, 07 Sep 2009 03:28:38 +0200
Subject: [Tkinter-discuss] Draw a table in Python 3.1
Message-ID: <1376436888@web.de>

I looked into the same problem a while ago and I was not able to make the Tktable gadget work on windows.
If you ever manage, it would be great if you could post a detailed step-to-step list.

I found an alternative that worked even better in my case. 
There is a MultiListBox gadget (several versions exist) that emulates a table by putting a number of synchronized lists next to each other. It features sorting, so that the table can be resorted by any column at a mouse click and some other good features. Bigest set back is that it is not good for numerical calculations. The fields are left adjusted and summing up &c. is optically not nice to implement.

HK

From michael.odonnell at uam.es  Mon Sep  7 10:24:13 2009
From: michael.odonnell at uam.es (Michael O'Donnell)
Date: Mon, 7 Sep 2009 10:24:13 +0200
Subject: [Tkinter-discuss] Draw a table in Python 3.1
In-Reply-To: <1376436888@web.de>
References: <1376436888@web.de>
Message-ID: <47e491110909070124t4bc0e73dt9a56013716d2e7ea@mail.gmail.com>

I use the following all-tkinter code to make a table. If it
lacks functionality, you can edit the code.

from Tkinter import *
from tkFont import Font
from math import floor

class Spreadsheet(Frame):

    def __init__(self, parent, font=None, **keywords):
        Frame.__init__(self, parent)
        self.columns=[]

        # Setup font information
        if font:
            self.txtFont=font
        else:
            self.txtFont=Font(family="Arial", size=14)
        self.defaultRowHeight=self.txtFont['size']+7

        self.headerFont=self.txtFont.copy()
        self.headerFont.configure(weight='bold')

        self.spreadsheet=Canvas(self, bg='white', bd=0,
highlightthickness=0, **keywords)
        self.header=Canvas(self, height=self.defaultRowHeight+2, bd=0,
highlightthickness=0, bg='white')
        self.header.pack(side=TOP, expand=FALSE, fill=X, pady=0)

        self.scrollY = Scrollbar(self, orient=VERTICAL,
command=self.spreadsheet.yview )
        self.scrollX = Scrollbar(self, orient=HORIZONTAL, command=self.xview )
        self.spreadsheet["xscrollcommand"] = self.scrollX.set
        self.spreadsheet["yscrollcommand"] = self.scrollY.set
        self.scrollY.pack(side="right", fill="y")
        self.scrollX.pack(side="bottom", fill="x")
        self.spreadsheet.pack(fill="both", expand=True, side="left")

        # Set up the mousewheel to scroll
        self.spreadsheet.focus_set()
        self.spreadsheet.bind("<MouseWheel>", self.mouseScroll)

        # Store current cursor (the one to restore to after a change)
        self.defaultCursor=self.cget("cursor")

        self.bind("<Configure>", self.catchResize)

    def catchResize(self, event):
        try:
            self.after_cancel(self.config_id)
        except: pass
        self.config_id = self.after(500, self.optimiseColumns)


    def xview(self, *args):
        self.header.xview(*args)
        self.spreadsheet.xview(*args)

    def initialise(self):

        self.spreadsheet.delete(ALL)

        # Any window items still bound, destroy
        for c in self.spreadsheet.children.values(): c.destroy()

        self.columns=[]
        self.rows=[]
        self.startCol=0
        self.startRow=0
        self.totalHeight=0


    def mouseScroll(self, event):
        if event.delta >0:
            self.spreadsheet.yview("scroll", "-1", "units")
        else:
            self.spreadsheet.yview("scroll", "1", "units")


    def setupColumns(self, columns):

        self.columns=[]

        for i in range(0, len(columns)):
            column=columns[i]
            name=column[0]
            width=column[1]
            if len(column)>2:
                align=column[2]
            else:
                align=CENTER
            self.columns.append([name,width,align])


    def addColumn(self, label, width=50, align=LEFT, bg='white', fg='black'):
        col=dict()
        col['label']=label
        col['width']=width
        col['align']=align
        col['bg']=bg
        col['fg']=fg
        self.columns.append(col)

    def addRow(self, pos, row):
        row=Row(row)
        row.height=self.getRowHeight(row)

        row.widgets=[]
        col=0
        for item in row:
            colDat=self.columns[col]
            if isinstance(item, Widget):
                row.widgets.append(item)
                item.internal=False
            else:
                e=Entry(self.spreadsheet, bg=colDat['bg'],
fg=colDat['fg'], font=self.txtFont, justify=colDat['align'])
                e.internal=True
                e.insert(END, item)
                if colDat['align']==RIGHT: e.xview(END)

                row.widgets.append(e)
            col += 1

        if pos==END:
            self.rows.append(row)
        else:
            self.rows.insert(pos, row)

    def getRowHeight(self, row):
        maxh=0
        for item in row:
            maxh=max(maxh, self.valHeight(item))
        return maxh


    def optimiseColumns(self, fixedWidth=True):
        if not self.columns: return

        # 1. Find the current total
        totWidth=0
        for column in self.columns:
            totWidth+=column['width']

        # Minimise columns which can be
        newWidth=0
        for col in range(0, len(self.columns)):
            maxwidth=self.neededWidth(col)
            colObj=self.columns[col]
            if maxwidth<colObj['width']:
                colObj['width']=maxwidth
            newWidth+=colObj['width']

        # Now, if some columns need more space, and it is available,
give it to them
        swidth=self.spreadsheet.winfo_width()
        if swidth<2:
            swidth=self.spreadsheet.winfo_reqwidth()

        if swidth>newWidth:
            # we have free space

            expand=[]
            for col in range(0, len(self.columns)):
                coldat=self.columns[col]
                reqwidth=self.neededWidth(col)
                if reqwidth>coldat['width']:
                    expand.append((coldat, reqwidth-coldat['width']))

            # Now, we assign each col an equal share of the free space,
            # up to their max requirement
            free=swidth-newWidth
            expand.sort(cmp=lambda a, b: cmp(a[1], b[1]))
            while expand:
                if free<1: break
                col,req=expand.pop()
                req=min(free, req)
                col['width']+=req
                free=free-req

        self.show()

    def neededWidth(self, col):
        maxwidth=self.headerFont.measure(self.columns[col]['label'])
        for row in self.rows:
            wdth=self.valWidth(row[col])
            maxwidth=max(wdth, maxwidth)
        return maxwidth+6


    def valWidth(self, val):
        if isinstance(val, basestring):
            return self.txtFont.measure(val)
        try:
            return val.winfo_reqwidth()
        except: pass


    def valHeight(self, val):
        if isinstance(val, basestring):
            return self.defaultRowHeight
        try:
            return val.winfo_reqheight()
        except: pass


    ##########################################
    # REDRAWING

    # REDRAW after change of screensize
    # Called after screen resize or the first time

    def show(self):
        self.spreadsheet.delete(ALL)
        self.redrawHeader()
        self.redrawSheet()

    def redrawHeader(self):
        self.header.delete(ALL)
        x=5
        height=self.defaultRowHeight+2
        self.header.create_line(x, 2, x, height)
        count=0
        for col in self.columns:
            width=col['width']
            self.header.create_rectangle(x+1, 3, x+width-1, height-1,
fill="#c1c2ef", outline="#c1c2ef")
            self.header.create_line(x, 2, x+width, 2)
            self.header.create_line(x, height, x+width, height)
            self.header.create_line(x+width, 2, x+width, height,
tags=('colend', str(count)))

            self.header.create_text(x+width/2, 1, text=col['label'],
anchor=N, font=self.headerFont, tags=('title', str(count)))
            # for the endline use a rect of width 3, but the border
same as background
            # Basically, this gives us a widget of 3 pix width for
detecting enter/leave events
            self.header.create_rectangle(x+width-1, 2, x+width+1,
height, fill='black', outline="#c1c2ef", tags=('colend', str(count)))
            x+=width
            count+=1

        self.header["scrollregion"]=(0,0,
x+self.scrollY.winfo_reqwidth(), height)

        # Make sure all controls are on top
        self.header.tag_raise('colend')
        self.header.tag_bind("colend", "<Enter>", self.enterColEnd)
        self.header.tag_bind("colend", "<Leave>", self.leaveColEnd)
        self.header.tag_bind("colend", "<Button-1>", self.startDrag)
        self.header.tag_bind("title", "<ButtonRelease>", self.orderByColumn)

    def redrawSheet(self):
        if not self.rows: return
        # now show the data
        y=0
        for row in self.rows:
            height=row.height
            x=5
            col=-1
            for value in row.widgets:
                col+=1
                width=self.columns[col]['width']
                self.drawCell(x, y, width, height, value, self.columns[col])
                x+=width
            y+=height

        self.spreadsheet["scrollregion"]=(0,0, x, y)

    def orderByColumn(self, event):
        wgt=self.header.find_withtag('current')
        colID=int(self.header.gettags(wgt)[1])
        self.sortOnColumn(colID)

    def enterColEnd(self, event):
        self.header.configure(cursor='sb_h_double_arrow')

    def leaveColEnd(self, event):
        self.header.configure(cursor=self.defaultCursor)

    def startDrag(self, event):
        self.wgt1=self.header.find_withtag('current')
        self.currCol=self.columns[int(self.header.gettags(self.wgt1)[1])]
        self.startX=self.header.bbox(self.wgt1)[0]
        self.header.bind('<B1-Motion>', self.moveBorder)
        self.header.bind('<ButtonRelease>', self.stopMoveBorder)

    def moveBorder(self, event):
        self.header.tag_raise(self.wgt1)
        wgt_x=self.header.bbox(self.wgt1)[0]
        diff=event.x-wgt_x
        self.header.move(self.wgt1, diff, 0)

    def stopMoveBorder(self, event):
        self.header.unbind('<B1-Motion>')
        self.header.unbind('<ButtonRelease>')
        self.grab_release()
        wgt_x=self.header.bbox(self.wgt1)[0]
        change=wgt_x-self.startX
        self.currCol['width']+=change
        self.show()

    def drawCell(self, x, y, width, height, value, col):
        if value.internal:
            self.spreadsheet.create_window(x, y,  window=value,
height=height, width=width, anchor=NW)
        else:
            wheight=min(height-2,value.winfo_reqheight())
            self.spreadsheet.create_window(x+width/2, y+height/2,
window=value, height=wheight, anchor=CENTER)

    def sortOnColumn(self, colID):
        self.rows.sort(cmp=lambda a, b, c=colID: cmp(a[c], b[c]))
        self.show()


class Row(list):

    def __init__(self, vals):
        if isinstance(vals, tuple): vals=list(vals)
        list.__init__(self, vals)
        self.height=0



if __name__ == '__main__':
    tk = Tk()
    ssw = Spreadsheet(tk, width=900)
    ssw.pack(side=TOP, expand=TRUE, fill=BOTH)
    ssw.initialise()
    ssw.addColumn('', 110)
    ssw.addColumn('Subject', 300, bg='light blue')
    ssw.addColumn('Sender', 200, align=CENTER)
    ssw.addColumn('Date', 200, align=RIGHT)

    # if embedded widgets do not have ssw.spreadsheet as parent, they
will overlap the border
    for i in range(0,20):
        but=Button(ssw.spreadsheet, text="View", font="Arial 8")
        ssw.addRow(END, (but, 'Important Message: %d' % i, 'John Doe',
'10/10/%04d' % (1900-i)))

    ssw.optimiseColumns()
    ssw.show()
    tk.mainloop()

From supersimha at gmail.com  Fri Sep 11 17:05:07 2009
From: supersimha at gmail.com (simha)
Date: Fri, 11 Sep 2009 08:05:07 -0700 (PDT)
Subject: [Tkinter-discuss]  Tktable module for python 3.1
Message-ID: <25402719.post@talk.nabble.com>


Hi all,
  Need some help. I found out a module Tktable to draw a table, access the
cell contents and retrieve data, put data etc., But I am not able to use the
module. Can anyone help me with the installation. I am trying to do this on
windows...
The module is available at 
http://sourceforge.net/projects/tktable/files/
If anyone have already used it, then please help me setting up the module...
My mail id is supersimha at gmail.com(supersimha(at)gmail(dot)com)

The code for Tktable is as said below
     import tktable
    
     table = tktable.Table(parent,
         rows = 5,
         cols = 5
        )

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From mark_eastwood at ntlworld.com  Sun Sep 13 03:34:09 2009
From: mark_eastwood at ntlworld.com (thicket)
Date: Sat, 12 Sep 2009 18:34:09 -0700 (PDT)
Subject: [Tkinter-discuss]  Help on subclassing - Tkinter.Menu
Message-ID: <25419747.post@talk.nabble.com>


Hi  - 

I'm building menus based on data from a configuration file - to date I've
created standard python classes to represent the menu data then used Tkinter
to retrieve the information and create the menu widgets. So I thought why
not take it a step further and combine the two - sample test code below

#!/usr/bin/env python
from Tkinter import *

class MyMenu(Menu):
        def __init__(self,parent):
                Menu.__init__(self,parent, tearoff=0)
                self.label1="Mylabel"
                self.label2="Myexit"

        def my_add(self):
                self.add_command(label=self.label1, command=root.quit)                        
# did not expect this to work
                Menu.add_command(self,label=self.label2, command=root.quit)               
# this I thought may work

root = Tk()
menubar = Menu(root)
menu=MyMenu(menubar)
menu.my_add()
menubar.add_cascade(label="Test", menu=menu)

root.config(menu=menubar)
mainloop()

What I would like to do is not hardcode the 'tearoff=0' in the parent class
constructor i.e. instantiate MyMenu by
menu=MyMenu(menubar, tearoff=0)

Also not 100% sure why both add_command() statements in my_add() work?
Thanks
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From klappnase at web.de  Sun Sep 13 11:56:20 2009
From: klappnase at web.de (Michael Lange)
Date: Sun, 13 Sep 2009 11:56:20 +0200
Subject: [Tkinter-discuss] Help on subclassing - Tkinter.Menu
In-Reply-To: <25419747.post@talk.nabble.com>
References: <25419747.post@talk.nabble.com>
Message-ID: <20090913115620.c973039d.klappnase@web.de>

Hi,

On Sat, 12 Sep 2009 18:34:09 -0700 (PDT)
thicket <mark_eastwood at ntlworld.com> wrote:

(...)
> 
> #!/usr/bin/env python
> from Tkinter import *
> 
> class MyMenu(Menu):
>         def __init__(self,parent):
>                 Menu.__init__(self,parent, tearoff=0)
>                 self.label1="Mylabel"
>                 self.label2="Myexit"
> 
>         def my_add(self):
>                 self.add_command(label=self.label1,
> command=root.quit)                        
> # did not expect this to work
>                 Menu.add_command(self,label=self.label2,
> command=root.quit)               
> # this I thought may work
> 
> root = Tk()
> menubar = Menu(root)
> menu=MyMenu(menubar)
> menu.my_add()
> menubar.add_cascade(label="Test", menu=menu)
> 
> root.config(menu=menubar)
> mainloop()
> 
> What I would like to do is not hardcode the 'tearoff=0' in the parent
> class constructor i.e. instantiate MyMenu by
> menu=MyMenu(menubar, tearoff=0)

You can achieve this by changing the MyMenu constructor so it will
accept keyword arguments and pass them to the Menu class.

    class MyMenu(Menu):
        def __init__(self,parent, **kw):
            Menu.__init__(self,parent, **kw)

> 
> Also not 100% sure why both add_command() statements in my_add() work?

In your example "root" is defined globally. It would not work if you
put root = Tk() and the following lines inside a function definition
and then the script calls this function.
If you want it to be more obvious you can keep a reference to the
parent inside the MyMenu class, so the constrctor may look like:

    class MyMenu(Menu):
        def __init__(self,parent, **kw):
            Menu.__init__(self,parent, **kw)
            self.parent = parent

However, as long as you need only the quit() method from "root", you
can use self.quit() as well, because any Tkinter widget has a quit()
method.

HTH

Michael 

From mark_eastwood at ntlworld.com  Sun Sep 13 14:27:24 2009
From: mark_eastwood at ntlworld.com (thicket)
Date: Sun, 13 Sep 2009 05:27:24 -0700 (PDT)
Subject: [Tkinter-discuss] Help on subclassing - Tkinter.Menu
In-Reply-To: <20090913115620.c973039d.klappnase@web.de>
References: <25419747.post@talk.nabble.com>
	<20090913115620.c973039d.klappnase@web.de>
Message-ID: <25422810.post@talk.nabble.com>


Michael 

it does (help) - thank you
cheers


Michael Lange wrote:
> 
> Hi,
> 
> On Sat, 12 Sep 2009 18:34:09 -0700 (PDT)
> thicket <mark_eastwood at ntlworld.com> wrote:
> 
> (...)
>> 
>> #!/usr/bin/env python
>> from Tkinter import *
>> 
>> class MyMenu(Menu):
>>         def __init__(self,parent):
>>                 Menu.__init__(self,parent, tearoff=0)
>>                 self.label1="Mylabel"
>>                 self.label2="Myexit"
>> 
>>         def my_add(self):
>>                 self.add_command(label=self.label1,
>> command=root.quit)                        
>> # did not expect this to work
>>                 Menu.add_command(self,label=self.label2,
>> command=root.quit)               
>> # this I thought may work
>> 
>> root = Tk()
>> menubar = Menu(root)
>> menu=MyMenu(menubar)
>> menu.my_add()
>> menubar.add_cascade(label="Test", menu=menu)
>> 
>> root.config(menu=menubar)
>> mainloop()
>> 
>> What I would like to do is not hardcode the 'tearoff=0' in the parent
>> class constructor i.e. instantiate MyMenu by
>> menu=MyMenu(menubar, tearoff=0)
> 
> You can achieve this by changing the MyMenu constructor so it will
> accept keyword arguments and pass them to the Menu class.
> 
>     class MyMenu(Menu):
>         def __init__(self,parent, **kw):
>             Menu.__init__(self,parent, **kw)
> 
>> 
>> Also not 100% sure why both add_command() statements in my_add() work?
> 
> In your example "root" is defined globally. It would not work if you
> put root = Tk() and the following lines inside a function definition
> and then the script calls this function.
> If you want it to be more obvious you can keep a reference to the
> parent inside the MyMenu class, so the constrctor may look like:
> 
>     class MyMenu(Menu):
>         def __init__(self,parent, **kw):
>             Menu.__init__(self,parent, **kw)
>             self.parent = parent
> 
> However, as long as you need only the quit() method from "root", you
> can use self.quit() as well, because any Tkinter widget has a quit()
> method.
> 
> HTH
> 
> Michael 
> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> http://mail.python.org/mailman/listinfo/tkinter-discuss
> 
> 

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From bradley.h at aggiemail.usu.edu  Tue Sep 15 19:48:50 2009
From: bradley.h at aggiemail.usu.edu (Bradley Hintze)
Date: Tue, 15 Sep 2009 13:48:50 -0400
Subject: [Tkinter-discuss] Horizontal scroll canvas
Message-ID: <3933e78c0909151048td49dde3jdbc313900c04184b@mail.gmail.com>

I am trying to make a scrollable canvas in the horizontal direction
but I am having a difficult time. I get the whole scroll bar and can
scroll using the arrows on the ends of the scroll bar but the actual
bar (the slider bar) takes up the whole scrollbar area as if there is
nothing to scroll. Thus, the slider bar cannot be used to scroll. (It
may be easier to understand if you just run the snipit of code) I am
wondering how I can fix this.
Here is my code:

from Tkinter import *
from tkFileDialog import *
import os
class analyze_notes:

    def __init__(self):
        string=''
        for i in range(0,100):string=string+'  '+str(i)
        self.comp_1=Tk()
        self.comp_1.title('Try')
        l1=Label(self.comp_1, text='Try canvas').grid()
        c1_xscroll=Scrollbar(self.comp_1, orient=HORIZONTAL)
        c1_xscroll.grid(row=2, sticky=E+W+N)
        c1=Canvas(self.comp_1, height=150, width=400, relief=SUNKEN,
xscrollcommand=c1_xscroll.set)
        c1.grid(row=1)
        c1_xscroll.config(command=c1.xview)
        self.topic_label = Label(c1, text=string, font=('courier',10),
bg='white')
        c1.create_window(0, 50, window=self.topic_label, anchor=NW)
        self.comp_1.mainloop()

r=analyze_notes()


Thanks in advance,

-- 
Bradley J. Hintze
Graduate Student
Duke University
School of Medicine
801-712-8799

From klappnase at web.de  Tue Sep 15 20:13:30 2009
From: klappnase at web.de (Michael Lange)
Date: Tue, 15 Sep 2009 20:13:30 +0200
Subject: [Tkinter-discuss] Horizontal scroll canvas
In-Reply-To: <3933e78c0909151048td49dde3jdbc313900c04184b@mail.gmail.com>
References: <3933e78c0909151048td49dde3jdbc313900c04184b@mail.gmail.com>
Message-ID: <20090915201330.9a8976c5.klappnase@web.de>

Hi,

On Tue, 15 Sep 2009 13:48:50 -0400
Bradley Hintze <bradley.h at aggiemail.usu.edu> wrote:

> I am trying to make a scrollable canvas in the horizontal direction
> but I am having a difficult time. I get the whole scroll bar and can
> scroll using the arrows on the ends of the scroll bar but the actual
> bar (the slider bar) takes up the whole scrollbar area as if there is
> nothing to scroll. Thus, the slider bar cannot be used to scroll. (It
> may be easier to understand if you just run the snipit of code) I am
> wondering how I can fix this.
> Here is my code:
> 
> from Tkinter import *
> from tkFileDialog import *
> import os
> class analyze_notes:
> 
>     def __init__(self):
>         string=''
>         for i in range(0,100):string=string+'  '+str(i)
>         self.comp_1=Tk()
>         self.comp_1.title('Try')
>         l1=Label(self.comp_1, text='Try canvas').grid()
>         c1_xscroll=Scrollbar(self.comp_1, orient=HORIZONTAL)
>         c1_xscroll.grid(row=2, sticky=E+W+N)
>         c1=Canvas(self.comp_1, height=150, width=400, relief=SUNKEN,
> xscrollcommand=c1_xscroll.set)
>         c1.grid(row=1)
>         c1_xscroll.config(command=c1.xview)
>         self.topic_label = Label(c1, text=string, font=('courier',10),
> bg='white')
>         c1.create_window(0, 50, window=self.topic_label, anchor=NW)
>         self.comp_1.mainloop()
> 
> r=analyze_notes()
> 

You did not define the Canvases scrollregion; this must be a 4-tuple
(x0, y0, x1, y1) defining the part of the canvas that should be
accessible through the scrollbars. In your case it should be fine to
add a line

    c1.configure(scrollregion=c1.bbox('all'))

to your code right before the call to mainloop() .
Please note that you might have to update the widget's scrollregion
each time the canvases contents are changed.

HTH

Michael

From halbert at halwitz.org  Thu Sep 17 18:31:12 2009
From: halbert at halwitz.org (Dan Halbert)
Date: Thu, 17 Sep 2009 12:31:12 -0400 (EDT)
Subject: [Tkinter-discuss] ImageTk.PhotoImage: empty image not holding its
	size
Message-ID: <1253205072.029319442@192.168.1.70>

Hi, I have a picky question about using an empty ImageTk.PhotoImage. I am trying to create a placeholder space for an image that will be supplied later - something like this:

    root = Tk()
    pimage = ImageTk.PhotoImage('RGB', (300,300))
    image_holder = Label(root, image=pimage)
    image_holder.grid()

However, the result is a a tiny window, not one with a 300x300 empty space. If I do pimage.paste(...) later with a real image, it grows as expected to fit the image.

I could set the width and height of the Label to 300x300 when I create it, but shouldn't the empty PhotoImage act like a 300x300 image?

Thanks,
Dan
 


From mbg at progress.com  Fri Sep 18 12:00:16 2009
From: mbg at progress.com (Moray Grieve)
Date: Fri, 18 Sep 2009 06:00:16 -0400
Subject: [Tkinter-discuss] Threading issue with Tkinter Frame.insert
Message-ID: <2EBB4E57935D4948AEA54C8C74DA66FC04327265@MAIL02.bedford.progress.com>

The code fragment below has an example where a Tk GUI is launched as a
separate thread - this all works fine in Python 2.5, but in Python 2.6
the thread hangs. The issue seems to be in the line;

 

self.messageBoxDetails.insert(INSERT, "Hello world")

 

Comment this line out, or use an empty string rather than "Hello World",
and the example works in both Python 2.5 and Python 2.6. I have not been
able to see any related issues to this and wonder if this is a bug in
the 2.6 Tkinter module?

 

Thanks for any assistance.

 

-Moray

 

 

---------------------

import time, thread

from Tkinter import *

 

class ExampleError:

     def __init__(self):

           self.parentContainer = Tk()

           self.parentContainer.protocol('WM_DELETE_WINDOW',
self.quitPressed)

           self.parentContainer.wm_geometry("500x400")

           self.parentContainer.title("Parent Container Title")

           

           self.container = Frame(self.parentContainer)

           self.messageBoxDetails = Text(self.container, wrap=WORD,
width=1, height=1, padx=10, pady=10)

           

           # in python 2.6, this next statement hangs when running as a
thread - note that 

           # inserting an empty string works though

           self.messageBoxDetails.insert(INSERT, "d")

           self.messageBoxDetails.pack(fill=BOTH, expand=YES, side=LEFT)

           

           self.container.pack(fill=BOTH, expand=YES, padx=5, pady=5)

           

     def quitPressed(self):

           self.stop()

           

     def start(self):

           self.parentContainer.mainloop()

                

     def stop(self):

           self.parentContainer.quit()

           self.parentContainer.destroy()

           

           

           

if __name__ =="__main__":

     example = ExampleError()

     time.sleep(1)

     thread.start_new_thread(example.start, ())

     time.sleep(5)   <http://www.progress.com/> 

 

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From klappnase at web.de  Fri Sep 18 20:59:11 2009
From: klappnase at web.de (Michael Lange)
Date: Fri, 18 Sep 2009 20:59:11 +0200
Subject: [Tkinter-discuss] Threading issue with Tkinter Frame.insert
In-Reply-To: <2EBB4E57935D4948AEA54C8C74DA66FC04327265@MAIL02.bedford.progress.com>
References: <2EBB4E57935D4948AEA54C8C74DA66FC04327265@MAIL02.bedford.progress.com>
Message-ID: <20090918205911.7b2df443.klappnase@web.de>

Hi Moray,

On Fri, 18 Sep 2009 06:00:16 -0400
"Moray Grieve" <mbg at progress.com> wrote:

> The code fragment below has an example where a Tk GUI is launched as a
> separate thread - this all works fine in Python 2.5, but in Python 2.6
> the thread hangs. The issue seems to be in the line;
> 
>  
> 
> self.messageBoxDetails.insert(INSERT, "Hello world")
> 
>  
> 
> Comment this line out, or use an empty string rather than "Hello
> World", and the example works in both Python 2.5 and Python 2.6. I
> have not been able to see any related issues to this and wonder if
> this is a bug in the 2.6 Tkinter module?
> 
>  

Here (python-2.5.2 on debian linux) I get the following error message:

Unhandled exception in thread started by 
Traceback (most recent call last):
  File "test.py", line 49, in start
    self.parentContainer.mainloop()
  File "/usr/lib/python2.5/lib-tk/Tkinter.py", line 1026, in mainloop
    self.tk.mainloop(n)
RuntimeError: Calling Tcl from different appartment

I never saw this before, but it seems to nicely point on to what is
wrong with your code. You are trying to communicate with Tk from two
different threads which is generally a bad idea. Sometimes this may be
a source of confusion because the same code seems to work on one system
an crashes on another, the problem is that you never seem to know in
advance. The canonical way of using threads with Tkinter is to make
sure that all calls to the Tk interpreter are done from the main
program thread; if you need communication between a child thread and
Tk, it should be done for example by changing some variable's value
from within the child thread and periodically polling these variable's
value from the Tk thread.

I hope this helps

Michael

> 
> Thanks for any assistance.
> 
>  
> 
> -Moray
> 
>  
> 
>  
> 
> ---------------------
> 
> import time, thread
> 
> from Tkinter import *
> 
>  
> 
> class ExampleError:
> 
>      def __init__(self):
> 
>            self.parentContainer = Tk()
> 
>            self.parentContainer.protocol('WM_DELETE_WINDOW',
> self.quitPressed)
> 
>            self.parentContainer.wm_geometry("500x400")
> 
>            self.parentContainer.title("Parent Container Title")
> 
>            
> 
>            self.container = Frame(self.parentContainer)
> 
>            self.messageBoxDetails = Text(self.container, wrap=WORD,
> width=1, height=1, padx=10, pady=10)
> 
>            
> 
>            # in python 2.6, this next statement hangs when running as
>            # a
> thread - note that 
> 
>            # inserting an empty string works though
> 
>            self.messageBoxDetails.insert(INSERT, "d")
> 
>            self.messageBoxDetails.pack(fill=BOTH, expand=YES,
> side=LEFT)
> 
>            
> 
>            self.container.pack(fill=BOTH, expand=YES, padx=5, pady=5)
> 
>            
> 
>      def quitPressed(self):
> 
>            self.stop()
> 
>            
> 
>      def start(self):
> 
>            self.parentContainer.mainloop()
> 
>                 
> 
>      def stop(self):
> 
>            self.parentContainer.quit()
> 
>            self.parentContainer.destroy()
> 
>            
> 
>            
> 
>            
> 
> if __name__ =="__main__":
> 
>      example = ExampleError()
> 
>      time.sleep(1)
> 
>      thread.start_new_thread(example.start, ())
> 
>      time.sleep(5)   <http://www.progress.com/> 
> 
>  
> 
> 

From lionkimbro at gmail.com  Mon Sep 28 00:38:18 2009
From: lionkimbro at gmail.com (Lion Kimbro)
Date: Sun, 27 Sep 2009 15:38:18 -0700
Subject: [Tkinter-discuss] Python 3.1; canvas rectangle dash & dashoffset
Message-ID: <497072fd0909271538o13720085u7cbdfecf05e4f93e@mail.gmail.com>

  Dear tkinter peoples,

  I'm having difficulties with dash, and dashoffset;
  Can anyone identify what I'm doing wrong?


- Code: ----------------------------------------------------

import tkinter

def move_dashes(canvas, rect, offset):
    print("move_dashes(%s, %s, %s)" % (canvas, rect, offset))
    canvas.itemconfigure(rect, dashoffset=offset)
    canvas.after(1000, move_dashes, canvas, rect, offset+1)

def dashoffset_test():
    # Create a canvas
    canvas = tkinter.Canvas()
    canvas.pack()
    # Put a comparison rectangle on the canvas.
    canvas.create_rectangle(7, 2, 27,28, outline="blue", dash=(5,1))
    # Put a rectangle on the canvas with a moving dash pattern.
    rect = canvas.create_rectangle(10,5, 30,30, dash=(4,1))
    canvas.after(1000, move_dashes, canvas, rect, 1)
    canvas.mainloop()

dashoffset_test()

============================================================


  Two questions:


  1.  Why are the dash patterns so wildly different?

 canvas.create_rectangle(7, 2, 27,28, outline="blue", dash=(5,1))
 canvas.create_rectangle(10,5, 30,30, dash=(4,1))

  The first looks like:

xxxxxxxxxxxxxxx  xxxxxxxxxxxxxxx  xxxxxxxxxxxxxxx

  The second looks like:

xxx  xxx  xxx  xxx  xxx  xxx  xxx  xxx  xxx  xxx

  ...and yet, it's just (5,1) vs. (4,1)

  This is not what I expect from:
  http://infohost.nmt.edu/tcc/help/pubs/tkinter/dash-patterns.html


  2.  Why doesn't the dash pattern move?

  The call to canvas.itemconfigure(rect, dashoffset=offset)
  looks correct; Am I doing it wrong?


  I am using Python 3.1

  Thank you,
    Lion Kimbro
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