Top-rated recipes tagged "tkinter"

Python Tkinter Canvas Rectangle Selection Box (Python)

2010-10-01T02:17:50-07:00

Python recipe 577409 by Sunjay Varma (canvas, rectangle, selection, tkinter).

A simple, yet effective rectangle selection box. :)

Works with a tkinter canvas! Just add the class and set it up like in the example code. The cross heir was my own touch, the RectTracker only draws a box.

Have fun! And please don't just vote down, post what you don't like if you don't like it.

Tkinter table with scrollbars (Python)

2017-05-06T19:06:05-07:00

Python recipe 580793 by Miguel Martínez López (scrollbars, table, tkinter). Revision 13.

I created here a tkinter table with scrollbar support. I use one of my other recipes for the mousewheel support and scrolling:

https://code.activestate.com/recipes/580640-scrolling-frame-with-mouse-wheel-support

chatbox megawidget for tkinter (Python)

2017-02-23T22:47:16-08:00

Python recipe 580757 by Miguel Martínez López (chat, chatbox, tkinter). Revision 3.

Chatbox megawidget.

Arguments:

my_nick

Nick of user chatting
command

Callback to call when a message is sent
logging_file

File to log all the messages
topic

Topic for the chatbox
maximum_lines

Max lines to show
entry_controls

Builder of controls for the entry (optional)
tags

List of tag configurations for the Text widget

Styling arguments:

timestamp_template
scrollbar_background
scrollbar_troughcolor
history_background
history_font
history_padx
history_pady
history_width
entry_font
entry_background
entry_foreground
label_template
label_font

Long processing computation in Tkinter or long-running task (Python)

2017-02-06T18:30:18-08:00

Python recipe 580754 by Miguel Martínez López (computation, intensive, long, task, tkinter). Revision 12.

I provide in this module the function "tk_call_async": It executes a function asynchronously.

tk_call_async(window, computation, args=(), kwargs={}, callback=None, polling=100, method=MULTIPROCESSING)

"tk_call_async" executes the function "computation" asynchronously with the provided "args" and "kwargs" without blocking the tkinter event loop.

If "callback" is provided, it will be called with the result when the computation is finished.

If an exception happens doing the computation, the errback function is called with the exception if this is provided.

"Polling" will be the frequency to poll to check for results.

There is two methods to execute the task: using multiprocessing or using threads.

Tkinter draggable list V2 (Python)

2017-03-03T14:13:14-08:00

Python recipe 580748 by Miguel Martínez López (draggable, list, tkinter). Revision 3.

This version use tkinter frame instead of ttk frame.

This next link is version 1 (It's the same code but it uses ttk frame):

https://code.activestate.com/recipes/580717-sortable-megawidget-in-tkinter-like-the-sortable-w/

Tkinter Animated GIF (Python)

2017-04-10T11:27:05-07:00

Python recipe 580708 by Miguel Martínez López (gif, tkinter). Revision 10.

Tkinter GIF in motion. It uses the "after" command of Tcl and PIL.

Add path to GIF to make the example working.

Python Mandelbrot Fractal with Tkinter (Python)

2015-05-06T09:57:27-07:00

Python recipe 579048 by Antoni Gual (fractal, graphics, python, tkinter). Revision 9.

Displays in a Tk window a pretty coloured 640x480 Mandelbrot set in 6 seconds. Calculates each one of the 300K pixels with a maximum of 256 iterations.
Only Tkinter used. Tested with Python 3.4
I will test any contribution and add it to the code if worthy.

Tkinter frame with different border sizes (Python)

2017-05-06T18:45:00-07:00

Python recipe 580798 by Miguel Martínez López (border, size, tkinter).

This trick shows how to create a bordered frame with different border size in each side.

Scrolled Frame V2 (Python)

2017-05-06T18:54:47-07:00

Python recipe 580797 by Miguel Martínez López (frame, scrolling, tkinter). Revision 4.

This is another version of scrolled frame. It doesn't use Canvas. Instead it does the trick using place geometry manager.

Based on these codes:

https://github.com/alejandroautalan/pygubu/blob/master/pygubu/widgets/tkscrolledframe.py
http://wiki.tcl.tk/9223

This is my other version of scrolled frame:

https://code.activestate.com/recipes/580640-scrolling-frame-with-mouse-wheel-support/

bind all tkinter "bug" (Python)

2017-05-05T20:33:31-07:00

Python recipe 580795 by Miguel Martínez López (all, bind, binding, tkinter). Revision 3.

This recipes tries to solve the problem of bind_all and unbind_all for tkinter.

When a callback is registered using bind_all method and later it's unregistered using unbind_all, all the callbacks are deleted for the "all" tag event. This makes difficult to register and unregister only one callback at a time. This recipes tries to solve this problem.

Observe the difference between the code below and the recipe. With the code below, when the user clicks nothing happens. But with my recipe it's possible to bind and unbind specific callbacks.

try:
    from Tkinter import Tk, Frame
except ImportError:
    from tkinter import Tk, Frame

root = Tk()
f = Frame(root, width= 300, height=300)
f.pack()

def callback1(event):
    print("callback1")

def callback2(event):
    print("callback2")

def callback3(event):
    print("callback3")

root.bind_all("<1>", callback1, add="+")
f.bind_all("<1>", callback2, add="+")
f.bind_all("<1>", callback3, add="+")

f.unbind_all("<1>")

root.mainloop()

Simple multicolumn listbox for tkinter (Python)

2017-05-02T22:27:15-07:00

Python recipe 580794 by Miguel Martínez López (listbox, multicolumn, table, tkinter).

This recipe makes easy to work a treeview widget like a table.

It has several options for styling:

heading_anchor
heading_font
heading_background
heading_foreground
cell_anchor
cell_background
cell_foreground
cell_font
cell_pady
height
padding
adjust_heading_to_content
stripped_rows
headers
selection_background
selection_foreground
field_background

The "command" parameter is a callback and its called each time a row is selected.

Tkinter table (Python)

2017-05-02T21:19:51-07:00

Python recipe 580786 by Miguel Martínez López (table, tkinter). Revision 24.

Table of data for tkinter.

Here there is an improved vesion with vertical scrollbar support:

https://code.activestate.com/recipes/580793-tkinter-table-with-scrollbars

Metro Listbox (Python)

2017-04-16T16:48:22-07:00

Python recipe 580785 by Miguel Martínez López (listbox, metro, tkinter). Revision 2.

I provide an alternative listbox for tkinter.

Using this trick you can add horizontal and vertical padding to every item and also a width.

Stacked frame for Tkinter (Python)

2017-04-13T18:20:26-07:00

Python recipe 580784 by Miguel Martínez López (animation, frame, stacked, tkinter). Revision 2.

I provide here a stacked frame widget with possibility to use animation for the transition.

Metro Checkbuttons and Radiobuttons (Python)

2017-04-12T23:25:49-07:00

Python recipe 580783 by Miguel Martínez López (checkbutton, radiobutton, tkinter). Revision 2.

This recipe shows how to create custom checkbuttons and radiobuttons

Image background for tkinter (Python)

2017-04-12T19:37:06-07:00

Python recipe 580782 by Miguel Martínez López (background, tkinter). Revision 3.

This is only a proof of concept.

In my first example, PIL is required. I use PIL also to draw the text over the background. I use the place geometry manager to position the entry.

In my second example, I use a canvas widget to draw text over image. I also use the canvas to create other widgets over the background.

Metro Accordion for Tkinter (Python)

2017-04-11T15:52:23-07:00

Python recipe 580781 by Miguel Martínez López (accordion, metro, tkinter, widget). Revision 5.

I provide an animation abstract object to make easy the animation of the accordion.

Metro Dialog for Tkinter (Python)

2017-04-11T11:23:46-07:00

Python recipe 580780 by Miguel Martínez López (dialog, metro, tkinter). Revision 5.

I provide here a metro style dialog.

It's possible to use a different style of colors subclassing the class Metro_Dialog or providing the corresponding arguments during class initialization.

For more metro widgets see here:

https://code.activestate.com/recipes/580729-metro-ui-tkinter

tkinter custom fonts (Python)

2017-04-10T01:07:11-07:00

Python recipe 580778 by Miguel Martínez López (font, tkinter). Revision 2.

One Windows the best solution is to use the trick explained here:

http://stackoverflow.com/a/30631309

Another possibility is to use PIL. creating an image with the text and a specific font.

I provide 2 classes: CustomFont_Label and CustomFont_Message.

CustomFont_Message displays multilines but requires the width parameter.

Metro Spinner for Tkinter (Python)

2017-04-10T21:14:36-07:00

Python recipe 580777 by Miguel Martínez López (canvas, image, pil, rotation, spinner, tkinter).

I create a rotating image class RotatingIcon inspired and based on this code:

http://stackoverflow.com/questions/15736530/python-tkinter-rotate-image-animation

Features:

Methods to stop and start the animation
The animation automically stops when the window is not mapped, and the animation continues when the window is mapped again
Time setting to control the speed of the animation
All the formats accepted for PIL could be used. XBM format is automatically converted to Tk Bitmap. The advantage of Bitmats is the possibility to change the color of the foreground.

I added 6 different styles of spinners with different sizes.

I used fontawesome.io for the icon generation.

For more metro widgets see here:

https://code.activestate.com/recipes/580729-metro-ui-tkinter/