Mailman 3 March 2010 - Tkinter-discuss

macPython, menubar won't display, new windows will not display widgets
by Joe Barfett March 28, 2010

March 28, 2010

Hello, I've had problems getting menus to appear in my Tkinter applications using python 2.5.2 and Mac OSX tiger and leopard. I've extensively searched for help and found only this link: http://www.learningpython.com/2006/03/27/using-menus-in-tkinter/ someone else has had the same problem but no solution is posted. Additionally, I find that if I make a new window with toplevel, widgets on the window will not display immediately, but will after the window is refreshed. With Tile so easily available, I really don't want to invest in learning another GUI toolkit for python. Tkinter solves all my needs (I'm a scientific programmer) and really I just want to make a more friendly and user oriented scientific application. Thanks if you can help! I can post source code if needed, but I'm hoping someone has just heard of the problem before and can point me in the right direction. Cheers from Canada! joe __________________________________________________________________ Looking for the perfect gift? Give the gift of Flickr! http://www.flickr.com/gift/

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Restoring scroll position in a scrolled text window
by Michael O'Donnell March 16, 2010

March 16, 2010

Hi all, Under Windows with python 2.6.4 Tkinter 8.5 I am trying to find a way to restore exactly the same scroll position in a scrolled text widget, after deleting all text and re-inserting the same text. Given a text widget in self.text, I can do the following: # record the index of the top visible line in the text widget topidx=self.text.index("@0,0") # redraw the text self.renew() # Restore the scroll self.text.see(topidx) However, "see" does not put this line index at the top of the text widget, but rather some number of lines below (unless it was already visible, in which case it stays where it was) Is there an easy way to put a definite line at the top of a scrolled text widget? I would use self.text.yview(MOVETO, fraction) ...but I cannot find out at what fraction of the window this line is! (my lines are of variable height, so I cannot simply multiply line height). Any other ideas? Mick

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Desperate GUI Help Please!!
by thomas1984 March 16, 2010

March 16, 2010

Hello, I need to make a GUI which has a fixed window size approx 390 (width) X 6020 (height) It needs to have a fileMenu containing "File" "About" "Exit". In the "file" menu it needs a menuItem called "new route". When you click on "new route" it needs to display a new window with a listBox.. When a user selects an item from the list box and clicks OK - it should pass this value to the original window. The difficulty here is that the main body of the GUI window, needs to display an image BUT it needs to be an image that is able to be drawed on. Below is my code for drawing on the image....... It is an EXAMPLE - but i need it like this i.e. by importing the ImageDraw library. # Do the proper imports for this script from Tkinter import * import os, sys import Image import ImageDraw # Load the image try: im = Image.open("C:\Documents and Settings\Administrator\Desktop\mm.gif") except: print "Unable to load image" exit(1) # Get a drawing surface for the image draw = ImageDraw.Draw(im) # Draw the circle #draw.ellipse((0,0)+im.size) # Draw the line #draw.line((0,0)+im.size) # and show off the result draw.line((0, 0) + (0,55), fill=000, width=22) draw.text((50, 50), "hey") im.show() Below is my code for the list box example...... from Tkinter import * class ListBoxTest : def __init__(self) : self.root = Tk() self.list_box_1 = Listbox(self.root) self.list_box_1.pack() self.delete_button = Button(self.root, text="Delete", command=self.DeleteSelection) self.delete_button.pack() def DeleteSelection(self) : items = self.list_box_1.curselection() pos = 0 for i in items : idx = int(i) - pos self.list_box_1.delete( idx,idx ) pos = pos + 1 def Show(self) : for i in range(0, 10) : s = "Item " + str(i) self.list_box_1.insert( END,s ) self.root.mainloop() lbt=ListBoxTest() lbt.Show() Below is my code for the Canvas and Window BUT the canvas does not hold an image I have drew on........ from Tkinter import * class AppUI(Frame): def __init__(self, master=None): Frame.__init__(self, master, relief=SUNKEN, bd=2) self.menubar = Menu(self) menu = Menu(self.menubar, tearoff=0) self.menubar.add_cascade(label="File", menu=menu) menu.add_command(label="New") menu = Menu(self.menubar, tearoff=0) self.menubar.add_cascade(label="Edit", menu=menu) menu.add_command(label="Cut") menu.add_command(label="Copy") menu.add_command(label="Paste") try: self.master.config(menu=self.menubar) except AttributeError: # master is a toplevel window (Python 1.4/Tkinter 1.63) self.master.tk.call(master, "config", "-menu", self.menubar) canvas = Canvas(width = 300, height = 200, bg = 'white') canvas.pack(expand = YES, fill = BOTH) gif1 = PhotoImage(file = 'mm.gif') canvas.create_image(50, 10, image = gif1, anchor = NW) canvas.pack() root = Tk() app = AppUI(root) app.pack() root.mainloop() ---- Is there anyone here who can put these elements together and maybe make this GUI for me? I'm really stuck and as you can see by the code examples I have gave this a shot, but I don't know how to finish it off - If someone can do this for me - it would be great as I can look at the code and learn. -- View this message in context: http://old.nabble.com/Desperate-GUI-Help-Please%21%21-tp27915635p27915635.h… Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.

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Tkinter with extension in C
by Vasilis Vlachoudis March 5, 2010

March 5, 2010

Hi all, I have an application that it requires to plot the result from some heavy calculation. Python is slow, so I am writing the calculation part as a C++ extension for python. Is it possible to draw directly to a Canvas opened from Tkinter from the C++ extension, in order to avoid useless transfer of data from C++ to python to tkinter? vasilis

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askdirectory from tkFileDialog
by D Mosthenes March 4, 2010

March 4, 2010

Is it possible to ask for a folder (not a file) with the same interface as asking for a file. That is, not with the tree branching. I believe the two interfaces are similar on Mac, so is it possible to emulate this on Windows? _________________________________________________________________ Hotmail: Free, trusted and rich email service. http://clk.atdmt.com/GBL/go/201469228/direct/01/

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