Mailman 3 February 2013 - Tkinter-discuss

Control position of Tkinter common dialogs?
by python＠bdurham.com Dec. 9, 2016

Dec. 9, 2016

Python 2.7 under Windows: How can we control the position of Tkinter's common dialogs? Here's what we've discovered: * Certain common dialogs always open up relative to their parent window * Certain common dialogs always open up centered on the user's desktop * All common dialogs appear to ignore the optional parent= parameter Questions: * How can we force a dialog to open up relative to its parent window? * How can we force a dialog to open up centered on the user's desktop? Background: import tkColorChooser as colorchooser import tkFileDialog as filedialog import tkMessageBox as messagebox # always open up relative to parent windows fileOpen = filedialog.askopenfilename() fileOpens = filedialog.askopenfilenames() fileSaveAs = filedialog.asksaveasfilename() color = colorchooser.askcolor() # always open up centered on desktop folderOpen = filedialog.askdirectory() messagebox.askquestion() Malcolm

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Where am I in a scrolled Text()?
by Bob Greschke Feb. 28, 2013

Feb. 28, 2013

I have a Toplevel, with a Text() widget and a Scrollbar() attached to its yview. If I fill it up with a bunch of text, and the user scrolls down to the middle how do I get an index position of a line that is visible? Like I can .see("100.0") and get to line 100, but how do I find out which line(s) is currently visible? I have a search function that highlights what the user wants to look for, but then it just jumps up to the first line with a search match with .see(). What I want to do is have it jump to the nearest line with a match in it, instead of all the way to the top of the text, but I don't know how to find out which lines are currently visible. There isn't a CURSOR or INSERT point to look for. This is like a Help display just for reading. Thanks! Bob

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Formatting external data as hyperlinks
by Kevin Walzer Feb. 26, 2013

Feb. 26, 2013

Hi all, So I have an app that reads data from an external process, and that data often has web URL's and e-mail addresses, like so: ---- anacron-2.3-6: Periodic command scheduler Anacron executes commands at intervals specified in days Unlike cron, it does not assume that the system is running continuously. It's ideal for machines such as laptops . Fink Developer Note: If your package requires some sort of recurring activity, you can add a script to the <fink prefix>/etc/cron.{daily,weekly,monthly} directory. See the run-parts(8) manpage for the structure of these scripts. . Web site: http://sourceforge.net/projects/anacron . Maintainer: None <fink-devel(a)lists.sourceforge.net> ---- I'd like to use effbot's hyperlink class (http://effbot.org/zone/tkinter-text-hyperlink.htm) to format the URL's and e-mail addresses as hyperlinks with a callback. What I'm not clear on is how to do this with a long-running process that loads external data. effbot's examples look something like this: hyperlink = tkHyperlinkManager.HyperlinkManager(text) def click1(): print "click 1" text.insert(INSERT, "this is a ") text.insert(INSERT, "link", hyperlink.add(click1)) text.insert(INSERT, "\n\n") It's easy to define a simple text snippet and add a hyperlink tag to it as the above example shows, but abstracting this idea to arbitrary text is proving difficult for me. Probably some sort of regular expression test is called for; can someone suggest how to implement this? (I've been using a very nice Tk widget, ctext (http://wiki.tcl.tk/4134) for this purpose, but while it works great in Tk directly, it seems to take a large performance hit when called from Tkinter, which make it unsuitable for presenting large amounts of data.) Any suggestions are appreciated. --Kevin -- Kevin Walzer Code by Kevin/Mobile Code by Kevin http://www.codebykevin.com http://www.wtmobilesoftware.com

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Hang on Macosc displaying Arabic in Tkinter Text widget
by Michael O'Donnell Feb. 25, 2013

Feb. 25, 2013

Dear all, The following code hangs on my MacOSX running Python 3.3.0 and Tk 8.5. It prints 1 but not 2. But if I change the font family to Times, it doesn't hang. Any ideas? (The text file (and code) is in the attached zip.) ######### from tkinter import * import codecs strm = codecs.open("arabic.txt", "r", "UTF-16LE") text = strm.read() strm.close() tk = Tk() tw=Text(tk, height=8,width=60, bg='white', font="Arial 16") tw.pack() tw.insert(END, text) print(1) tw.update() print(2) tk.mainloop() #####

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tkinter Entry validation: insert instead of replace
by lansman Feb. 22, 2013

Feb. 22, 2013

Here is simple Python/Tkinter program with single Entry widget that i want automatically check is number entered or not. http://pastebin.com/WkLy2Csb <http://pastebin.com/WkLy2Csb> print statement in _validate() function only for debugging. The problem is in this case visual editing of Entry is incorrect. For example i doing those steps: 1. Launch program. 2. See '111' value in the Entry 3. Select '111' by left mouse button 4. Press "9" on keyboard 5. Instead of full replace '111' to '9' insert happens and i see '9111'! Debug log (i numerated steps for convinience): 1. OnValidate: d='-1' i='-1' P='111' s='' S='' v='all' V='forced' W='.37125736' 2. OnValidate: d='-1' i='-1' P='111' s='111' S='' v='all' V='focusin' W='.37125736' 3. OnValidate: d='0' i='0' P='' s='111' S='111' v='all' V='key' W='.37125736' 4. OnValidate: d='1' i='0' *P='9111'* s='111' S='9' v='all' V='key' W='.37125736' 5. OnValidate: d='0' i='1' P='9' s='9111' S='111' v='all' V='key' W='.37125736' 6. OnValidate: d='1' i='1' P='99' s='9' S='9' v='all' V='key' W='.37125736' 7. OnValidate: d='1' i='2' P='999' s='99' S='9' v='all' V='key' W='.37125736' Pay attention to step 4. It is strange additional step with unwanted Entry text state ('9111') But if i change /return P.isdigit()/ to /return True/ Everything becomes ok! Entry works like any entry in other programs. 1. OnValidate: d='-1' i='-1' P='111' s='' S='' v='all' V='forced' W='.37650024' 2. OnValidate: d='-1' i='-1' P='111' s='111' S='' v='all' V='focusin' W='.37650024' 3. OnValidate: d='0' i='0' P='' s='111' S='111' v='all' V='key' W='.37650024' 4. OnValidate: d='1' i='0' P='9' s='' S='9' v='all' V='key' W='.37650024' 5. OnValidate: d='1' i='1' P='99' s='9' S='9' v='all' V='key' W='.37650024' 6. OnValidate: d='1' i='2' P='999' s='99' S='9' v='all' V='key' W='.37650024' I work on Windows 7, python 2.7. Anybody know why it happens? -- View this message in context: http://python.6.n6.nabble.com/tkinter-Entry-validation-insert-instead-of-re… Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.

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Entry Labels - .get()
by Blackpanda Feb. 1, 2013

Feb. 1, 2013

Hi, I'm relatively new to Python and am building a GUI using Tkinter. As part of the GUI I have a form ("frm2") which has a number of enrty labels ("self.ent"). These are placed in the form using a double loop (see below). I also have a button which I want to return all the entries. The button is linked (i.e. using command=self.GetValues) to a function which uses self.entVar.get() to try and get all the entries but this only gives me the last entry. Any suggestions how I can get all the entries when the button is pressed? frm2 = LabelFrame(cnv, text="Portfolio Weights:", font=("Calibri", 12), width=150) #Frame contents for i in range(0, len(Assets_Text)): labi = Label(frm2, width=30, text=Assets_Text[i], anchor='w') labi.grid(row=i+5, column=0, sticky='we') for j in range(0, self.entry2Variable.get()): lab2 = Label(frm2, text="Portfolio %d" % (j+1), width=10, font=("Calibri", 10)) lab2.grid(row=4, column=j+1) self.entVar = IntVar() self.ent = Entry(frm2, width=10, textvariable=self.entVar) self.ent.grid(row=i+5, column=j+1) self.entVar.set(0.00) -- View this message in context: http://python.6.n6.nabble.com/Entry-Labels-get-tp5004179.html Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.

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