Mailman 3 February 2007 - Tkinter-discuss

Shareware product using Tkinter
by Kevin Walzer Jan. 7, 2008

Jan. 7, 2008

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I know there is a lot of talk about Tkinter being an antiquated toolkit, unsuitable for commercial software development. However, I am using Tkinter in one of my shareware programs: http://www.codebykevin.com/packetstream.html (there's a screenshot) This application makes use of some recent advances in Tk development, including Tile (see http://tkinter.unpythonic.net/wiki/TileWrapper for the Python wrapper). It also makes use of some nice Tkinter widgets such as ToolTip (http://tkinter.unpythonic.net/wiki/ToolTip). If you pay attention to some of the specifics of the platform you are targeting (this app is for Mac OS X users) and to other points of application design, such as icons (I find the Tango set to be very polished and well-suited for the Mac; it doesn't scream "Linux"), then I think it's quite possible to make a nice, polished, professional-looking application with Tkinter. I'm curious if anyone has thought about gathering a listing of other Tkinter applications, commercial or otherwise, that are well-designed/attractive. Perhaps a screenshot page at the Tkinter wiki or elsewhere? - -- Kevin Walzer Code by Kevin http://www.codebykevin.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD4DBQFFntpOEsLm8HXyq4sRAuxMAJQOpHKZf9dGrxO/0F0UVIPMr8vZAJsGIHT9 pYgEgO+j2Q83GocIWWOzqA== =7aqI -----END PGP SIGNATURE-----

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Re: [Tkinter-discuss] Tkinter-discuss Digest, Vol 34, Issue 5
by Harlin Seritt Aug. 16, 2007

Aug. 16, 2007

Hiya G G In case you're a freak about namespace polution (and that's really a good thing), you can generally rest assured that you'll be almost always fine when you do a full namespace import of Tkinter module. Harlin Seritt tkinter-discuss-request(a)python.org wrote: Send Tkinter-discuss mailing list submissions to tkinter-discuss(a)python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/tkinter-discuss or, via email, send a message with subject or body 'help' to tkinter-discuss-request(a)python.org You can reach the person managing the list at tkinter-discuss-owner(a)python.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Tkinter-discuss digest..." Today's Topics: 1. Radiobutton issue (G G) 2. Re: Radiobutton issue (Bob Greschke) ---------------------------------------------------------------------- Message: 1 Date: Wed, 6 Dec 2006 06:13:08 -0800 (PST) From: G G Subject: [Tkinter-discuss] Radiobutton issue To: tkinter-discuss(a)python.org Message-ID: <858548.5793.qm(a)web36703.mail.mud.yahoo.com> Content-Type: text/plain; charset="iso-8859-1" Hello, I was trying to disable Radiobutton widget, with passing Tkinter.Radiobutton(...,state='disabled') . also tried Tkinter.Radiobutton(...,state=Tkinter.DISABLED) and Tkinter.Radiobutton(...,state=DISABLED) and but no success. In first two cases there is no error message but radiobutton doesn't get disabled... In the third case I got Python error saying DISABLED is not defined. Is there any known issue/problem with disabling Radiobutton widget? thanks a lot --------------------------------- Everyone is raving about the all-new Yahoo! Mail beta.

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Installing Tk.framework to directory other than system directories
by jstradli＠nmt.edu Feb. 20, 2007

Feb. 20, 2007

Hello, Platform: Mac OS X 10.4 I'm trying to install the Tk.framework to a directory other than /Library/Frameworks or /System/Library/Frameworks or ~/Library/Frameworks . I'm wanting to do this so I can create Mac packages with a custom build of Python, Tkinter and some additional modules that can be installed in a completely self contained custom directory. I don't want Tk.framework to be installed to the system directories because it may inadvertently clobber a users Tk.framework ;-). Here is what I have done 1) Built tcl with framework enabled and custom prefix. Then I changed the path the framework was to be installed to in the Makefile (namely /opt/<somename>/Library/Frameworks) 2) I then repeated the above for tk 3) I configured python with a custom prefix, then I edited setup.py and added to the beginning of the list variable "framework_dirs" the path to my tk and tcl frameworks (/opt/<somename>/Library/Frameworks) I than ran make and make install After testing this I noticed that it was still linking to the MAC OS default Tk.framework in /System/Library/Frameworks not my newly installed framework? Sorry for the long-windedness I wanted to make it clear what I have done and my end goal. Regards, Joe

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Who maintains the Wiki?
by Sorin Schwimmer Feb. 20, 2007

Feb. 20, 2007

Hi All, I just noticed at the bottom of http://tkinter.unpythonic.net/wiki/FrontPage a collection of links that don't belong there. Now, I know that there are porn-loving people, but I'm one who thinks that it doesn't belong to this wiki. Does anybody know how to contact the person(s) who maintain this wiki? Thanks, Sorin ____________________________________________________________________________________ Don't pick lemons. See all the new 2007 cars at Yahoo! Autos. http://autos.yahoo.com/new_cars.html

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Re: [Tkinter-discuss] Multipage Postscript printing from canvas
by mkieverpy＠tlink.de Feb. 20, 2007

Feb. 20, 2007

Hello Vasilis, the options to the postscript function are quite extensively explained in the tk canvas man-page (man n canvas). (Beware! I never used this :-) What I have seen from a cursory glance: Use pagewidth or pageheight options for scaling to A4/Letter size Use x, y, height and width options to select a part of the canvas Remember also: there is no size information in canvas coordinates. Scaling of the output is completely up to you. (A4 is 20.99 x 29.70 (says gimp); so for the upper left part of the canvas you might use: c.postscript(... pageheight="29.70c",x="0",y="0",height="297",width="209.9") As I have said, I never used this, this is just what the man-page says (just tried the line above). It says also, that it generates encapsulated postscript, so (with postscript hacking know-how) you could embed all generated parts into a single postscript template file which just references the parts. You might even do this in python, if you don't use the file option. Greetings, Matthias Kievernagel (mkiever/at/web/dot/de)

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Multipage Postscript printing from canvas
by Vasilis Vlachoudis Feb. 20, 2007

Feb. 20, 2007

Hi all, In my application I am creating an editor using a scrollable canvas as the main widget. I want to provide a print option for the canvas, creating a multi-page A4/letter format postscript. I made the following method to split the content of the canvas into many postscript files, which will be later send to the printer or joined together to a single file, but I have many problems. 1. How do I create an A4 or letter format page? 2. What is the conversion between pixels in the Canvas and points in the postscript? 3. What is the best way to split the pages? 4. How do I merge everything into a multi-page postscript? class InputCanvas(Canvas): ... def printer(self,filename): bbox = map(int,self.canvas.cget("scrollregion").split()) if bbox is None: return (x,y,w,h) = bbox height = 1000 # For the moment arbitrarily chosen! for y in range(0,h,height): self.canvas.postscript( file=filename+str(y), colormode="color", y=y) #pageheight=12*96) Vasilis

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Re: [Tkinter-discuss] Problems with lambda functions in callbacks
by mkieverpy＠tlink.de Feb. 16, 2007

Feb. 16, 2007

Hello Dídac, just to add an explanation, why your code doesn't work: >from Tkinter import * > >root = Tk(); > >def cb(x): > print x; >for i in range(5): > b = Button(root,text=i,command=lambda:cb(i)); The part "lambda:cb(i)" is a function which gets evaluated (called) when a button is clicked. It is evaluated in the scope where it is defined. In this scope (the global scope) the for-loop has finished running long ago. Thus 'i' is always evaluated to '4' regardless which button is pressed because this is the value of 'i' after the end of the loop. Stewart's code: b = Button(root,text=i,command=lambda i=i:cb(i)); This code works because it turns the loop variable 'i' into a default value for the parameter 'i' of the lambda function. And default values are evaluated when the function is defined, i.e. while the loop is running. > b.pack(); > >root.mainloop(); Hope this helps to demystify this behaviour, Matthias Kievernagel (mkiever/at/web/dot/de)

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Problems with lambda functions in callbacks
by Dídac Busquets Feb. 15, 2007

Feb. 15, 2007

Hello, I'm trying to create a set of buttons to which I assign a callback that is the same for all of them, except for the parameter (to do this I use a lambda function). I want to get the buttons numbered from 0 to 4, so that when I click on any of them, it prints out its number (that is, button 0 prints 0, button 1 prints 1, etc). The code I wrote is the following: from Tkinter import * root = Tk(); def cb(x): print x; for i in range(5): b = Button(root,text=i,command=lambda:cb(i)); b.pack(); root.mainloop(); This doesn't work, and for any button I click, I only get "4" printed (which is the last value of variable 'i'). Any idea about what is going on? Thanks a lot, Dídac -- ------------------------------------------------------------------------ *Dídac Busquets i Font* Investigador Ramón y Cajal Universitat de Girona Dept. d'Electrònica, Informàtica i Automàtica Institut d'Informàtica i Aplicacions Edifici P-IV, Despatx 128 Campus Montilivi 17071 Girona Tel. (+34) 972.41.81.79 Fax. (+34) 972.41.80.98 e-mail: busquets(a)eia.udg.es web: http://eia.udg.es/~busquets ------------------------------------------------------------------------ Abans d'imprimir aquest correu electrònic pensa si és necessari fer-ho: el medi ambient és cosa de tots. ------------------------------------------------------------------------

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calling B1-Motion and Leave events symontaneously?
by mina dehghan Feb. 15, 2007

Feb. 15, 2007

Hi, I am trying to implement lasso selection technique to select a set of rectangles on a canvas. When the usr leaves a rectangle while B1 is down the current rectangle is either selected or reselected. So I need to use two events: <B1-motion> bound to the canvas and <Leave> bound to rectangles. But only B1-motion event is called. Does anyone know what the problem is and how to call B1-motion and Leave symontaneously? Thanks, Mina __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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ImageTk.PhotoImage and semi-transparent images
by Michael Lange Feb. 1, 2007

Feb. 1, 2007

Hello, I noticed that some images do not display correctly when using an ImageTk.PhotoImage . It seems like this only affects images containing semi-transparent pixels (?); I have uploaded an example of what I mean to <http://klappnase.zexxo.net/Tkimg_vs_PIL.html>. Does anyone know if there is anything I missed to avoid this effect? I ask because in my app I currently use Tkimg to display icons and PIL for resizing and I would like to get rid of Tkimg, if possible. Thanks in advance Michael

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