Mailman 3 November 2008 - Tkinter-discuss

Possibly n00bish question about ImageTk
by Barnesdesdes Feb. 10, 2009

Feb. 10, 2009

I've been trying to make a program which will import a png file and display it inside a frame. It actually works when I just run the code, but if I try to abstract the exact same code into a function, it fails. In the code below, if I just run it, it works. However, if I comment out the lines between "root=Tkinter.Tk()" and "moo(root)" and comment in "moo(root)", it no longer works. Instead of displaying the image, it just displays a gray frame of the correct size. Does anyone have any insights about what I'm doing wrong? import Image, ImageTk, Tkinter def moo(master): img = Image.open('plotfig.png') f = Tkinter.Frame(master, width=800, height=600) pi = ImageTk.PhotoImage(img) t = Tkinter.Label(f, image=pi) f.pack() t.place(x=0, y=0, width=800, height=600) t.pack() root = Tkinter.Tk() img = Image.open('plotfig.png') f = Tkinter.Frame(root, width=800, height=600) pi = ImageTk.PhotoImage(img) t = Tkinter.Label(f, image=pi) f.pack() t.place(x=0, y=0, width=800, height=600) t.pack() #moo(root) root.mainloop() Thanks very much. Alan -- View this message in context: http://www.nabble.com/Possibly-n00bish-question-about-ImageTk-tf3990201.htm… Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.

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changing the Entry 'show' option back to normal
by Levi Starrett Dec. 4, 2008

Dec. 4, 2008

i'm trying to create a password system with the pmw notebook. i've succeeded in changing the entry show option to '*', but i can't figure out how to change it back to normal. thanks in advance. -Levi

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mtTkinter version 0.2 uploaded
by Allen Taylor Dec. 1, 2008

Dec. 1, 2008

Fixed some fairly major bugs and uploaded to http://tkinter.unpythonic.net/wiki/mtTkinter. Allen

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Anyone home?
by Louis Gidney Nov. 28, 2008

Nov. 28, 2008

Anyone home? Lou

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Detecting (draw) items on Canvas (widget)
by Gabor Kalman Nov. 26, 2008

Nov. 26, 2008

Question: I have a Canvas (c1) and have created (drawn) a rectangle item on c1. How can I find out that at an xy location I'm over the canvas OR over the rectangle (the latter, of course, is over the Canvas too)? Tried with various "tag"-s, but did not work.

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Tkinter in Python 2.6 under MacOSX
by Michael O'Donnell Nov. 19, 2008

Nov. 19, 2008

Hi all, Last I tried (2 days ago), the python 2.6 installer for MacOSX was broken for Tkinter. Discussion on the web suggests that python tries to link against the wrong version of Tk. Even Idle doesn't launch. Have other tkinter users experienced this? Any easy fixes without requiring me to learn how to compile python from scratch? Mick O'Donnell

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Strange behavior with python 2.5
by Vasilis Vlachoudis Nov. 17, 2008

Nov. 17, 2008

Dear all, The tkMessageBox.askquestion as also several other methods e.g Text.search have changed the return value with python 2.5 wrt to 2.4 Run the following test program (below) with python 2.4 answering yes on askquestion dialogs and change directory in the askdirectory you will get (python 2.4, Tk/Tcl 8.4 Tkinter $Revision 50704$) ans1= yes <type 'str'> ans2= yes <type 'str'> Run the same example with python 2.5 (Tk/Tcl 8.5 Tkinter $Revision: 50704 $) ans1= yes <type 'unicode'> ans2= yes <type '_tkinter.Tcl_Obj'> First the ans1 is unicode instead of str and the second one after the askquestion is _tkinter.Tcl_Obj! Also with python 2.4 tk/tcl 8.5, the Text.search now returns the _tkinter.Tcl_Obj instead of str regardless of opening the tkFileDialog.askdirectory() Best Regards Vasilis # -------------- test program ----------- from Tkinter import * import tkMessageBox import tkFileDialog root = Tk() ans = tkMessageBox.askquestion("Yes/No","Answer YES") print "ans1=",ans,type(ans) d = tkFileDialog.askdirectory(title="Please change directory") ans = tkMessageBox.askquestion("Yes/No","Answer YES") print "ans2=",ans,type(ans)

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Top-level window geometry
by Gabor Kalman Nov. 17, 2008

Nov. 17, 2008

In the code-snipet below, the following is printed as output: 1x1+0+0 Question #1: why??? (is this somekind of a "normalized" or "per-unit" output?) ======= Question#2: the x=0, y=0 position is ignored when the root and the canvas are displayed. Why??? ======== #============================== from Tkinter import * root=Tk() root.geometry('600x400+0+0') #why??????? print root.winfo_geometry() canvas=Canvas(root,bg='green') canvas.pack()

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How to bind to a drawn object?
by btkuhn＠email.unc.edu Nov. 17, 2008

Nov. 17, 2008

Hello everyone, I am trying to create bindable shapes with Tkinter that are dragged when the user drags with the mouse. Here is an example (some code edited out for simplicity). This is all within an "App" class: self.canvas=Canvas(self.display, bg='blue') self.canvas.bind('<B1-Motion>', self.onDrag) self.x=10 self.y=10 #Draw ball, set up screen layout self.box1=self.drawBox(self.canvas) self.canvas.pack() def drawBox(self,master): newbox=master.create_rectangle(self.x, self.y, self.x+70, self.y+70, width=5, fill='red') return newbox def onDrag(self,event): self.canvas.move(self.box1,event.x-self.x,event.y-self.y) self.x=event.x self.y=event.y This works as written, but it is not good form because it can only be used with box1. <B1-Motion> is bound to the canvas rather that the box, and "self.box1" is explicitly stated in the onDrag method. Therefore, if I wanted to create 10 boxes (or even 2) I would have to write a new onDrag method for each one. Also, if I want the box to only drag when the user clicks INSIDE the box, I would have to create a new "dimensions" list for each new box, and then use an if statement to see if the mouse is inside the box, etc. I actually tried doing this and it makes the program run extremely slow with only one box, so I don't think this is a good solution. It seems logical to bind <B1-Motion> to box1 rather than the canvas, and that way the box will react only if the mouse is inside the box, and I could create multiple boxes, each with its own binding to <B1-Motion>. When I try to do this, though, using something like this: newbox=master.create_rectangle(self.x, self.y, self.x+70, self.y+70, width=5, fill='red') newbox.bind('<B1-Motion>', self.onDrag) it gives me an error saying that I can't bind this method to this instance. How can I make this work? Thanks!

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Posting a new Thread...
by Gabor Kalman Nov. 16, 2008

Nov. 16, 2008

Some time ago I successfully subscribed to Tkinter-discuss (with email addres+password). I am having a problem to start a new Thread. I need some help and/or direction (URL?) on how to do this.

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