Tkinter Scrolling Issues - python

I am trying to put a scrollbar on my listbox but because the items I am inserting are so long, but the scrollbar does not scroll all the way. If you run the code below, you will see what I am talking about and notice that the horizontal scroll bar can not scroll all the way to the right. Does anyone know how I can fix this? Same problem occurs for the vertical scroll bar when you add a few more entries.
import tkinter
lista=[11111111111111111111111111111111111111111111111,22222222222222222222222222222222222222222222222222,
33333333333333333333333333333333333333333333333333333333333333333333333333333333334444444444444444444467,4444444444444444,
5555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555556]
master = tkinter.Tk()
master.geometry("400x250")
frame = tkinter.Frame(master, borderwidth=1, highlightthickness=1,
highlightbackground="black", highlightcolor="black")
frame.place(bordermode=tkinter.INSIDE, height=240, width=300, y=0, x=30)
LIST = tkinter.Listbox(frame)
LIST.place(bordermode=tkinter.INSIDE, height=237, width=296)
Scroll_Bar_x = tkinter.Scrollbar(frame, orient=tkinter.HORIZONTAL)
Scroll_Bar_x.config(command=LIST.xview)
Scroll_Bar_x.pack(fill=tkinter.X, side=tkinter.BOTTOM)
LIST.config(xscrollcommand=Scroll_Bar_x.set)
Scroll_Bar_y = tkinter.Scrollbar(frame, orient=tkinter.VERTICAL)
Scroll_Bar_y.config(command=LIST.yview)
Scroll_Bar_y.pack(fill=tkinter.Y, side=tkinter.RIGHT)
LIST.config(yscrollcommand=Scroll_Bar_y.set)
for x in lista:
LIST.insert(0, x)
master.mainloop()

You are having issues with overlapping your scroll bars on the placed listbox. Most of the time place() is not what you want to use.
Instead try grid() this will help keep everything in order and sized correctly.
import tkinter
lista=[11111111111111111111111111111111111111111111111,22222222222222222222222222222222222222222222222222,
33333333333333333333333333333333333333333333333333333333333333333333333333333333334444444444444444444467,4444444444444444,
5555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555556]
master = tkinter.Tk()
master.geometry("400x250")
frame = tkinter.Frame(master, height=240, width=300, borderwidth=1, highlightthickness=1, highlightbackground="black", highlightcolor="black")
frame.grid(row=0, column=0)
frame.rowconfigure(0, weight=1)
frame.columnconfigure(0, weight=1)
LIST = tkinter.Listbox(frame)
LIST.grid(row=0, column=0, sticky="nsew")
frame.grid_propagate(False)
Scroll_Bar_x = tkinter.Scrollbar(frame, orient=tkinter.HORIZONTAL)
Scroll_Bar_x.config(command=LIST.xview)
Scroll_Bar_x.grid(row=1, column=0, sticky="ew")
LIST.config(xscrollcommand=Scroll_Bar_x.set)
Scroll_Bar_y = tkinter.Scrollbar(frame, orient=tkinter.VERTICAL)
Scroll_Bar_y.config(command=LIST.yview)
Scroll_Bar_y.grid(row=0, column=1, sticky="ns")
LIST.config(yscrollcommand=Scroll_Bar_y.set)
for x in lista:
LIST.insert(0, x)
master.mainloop()
Results:

Related

How can I change the shape of the scrollbar in tkinter, python?

I use scrollbar widget and I want to change the shape of it.
Here's my questions below.
Can I use the image on the scroll bar?
How can I modify the color and shape with the options like relief, background, highlightbackground, highlightcolor or highlightthickness? I already tried but not a thing has changed.
from tkinter import *
root = Tk()
root.geometry("640x480")
frame = Frame(root)
frame.pack()
scrollbar = Scrollbar(frame, relief=RAISED, width=20, bd=5, activebackground="yellow", elementborderwidth=10, troughcolor="yellow", highlightbackground="red")
scrollbar.pack(side="right", fill="y")
listbox = Listbox(frame, selectmode="extended", height=10, bg="green", fg="white", yscrollcommand=scrollbar.set)
for i in range(1, 32):
listbox.insert(END, str(i) + "day")
listbox.pack()
scrollbar.config(command = listbox.yview) # scrollbar와 listbox를 mapping 해줌
root.mainloop()

Tkinter canvas & scrollbar with grid

I have a canvas in a frame
photoFrame = Frame(centerFrame, width=250, height=190, bg="#EBEBEB")
photoFrame.grid(row=0, column=1, sticky="nsew")
photoCanvas = Canvas(photoFrame, bg="#EBEBEB")
photoCanvas.grid(row=0, column=0, sticky="nsew")
and I try to put a scrollbar to my canvas with this
photoScroll = Scrollbar(photoFrame, orient=VERTICAL)
photoScroll.config(command=photoCanvas.yview)
photoCanvas.config(yscrollcommand=photoScroll.set)
photoScroll.grid(row=0, column=1, sticky="ns")
The scrollbar appears but it's disabled. Can you help me please ?
Sorry for my bad english.
In a for loop I add lots of Image button with this code
element = Button(photoCanvas, image = listPhotos[i], borderwidth=0, height = 200, width = 200, bg="#EBEBEB")
element.grid(row=rowPhoto, column=columnPhoto, padx=5, pady=5, sticky="nsew")
Finnally I have this
root = Tk()
photoFrame = Frame(root, width=250, height=190, bg="#EBEBEB")
photoCanvas = Canvas(photoFrame, bg="#EBEBEB")
photoCanvas.grid(row=0, column=0, sticky="nsew")
for i in range(0, len(listPhotos), 1):
element = Button(photoCanvas, image = listPhotos[i], borderwidth=0, height = 200, width = 200, bg="#EBEBEB")
element.grid(row=rowPhoto, column=columnPhoto, padx=5, pady=5, sticky="nsew")
photoScroll=Scrollbar(photoFrame,orient=VERTICAL)
photoScroll.config(command=photoCanvas.yview)
photoCanvas.config(yscrollcommand=photoScroll.set)
photoScroll.grid(row=0, column=1, sticky="ns")
in my app, the purple rectangle is the next frame and I need a vertical scrollbar
Say if you have some questions
One way to scroll a group of widgets is to put them (with grid of pack) inside a frame and put this frame inside a canvas.
The two key elements (besides connecting the scrollbar to the canvas) for the scrolling to work are:
Use canvas.create_window(x, y, window=frame) to put the frame inside the canvas so that it is treated like a canvas item.
Update the canvas scrollregion each time the size of the frame changes (for instance after adding a new widget) with canvas.configure(scrollregion=canvas.bbox('all')).
Here is an adaptation of the code of the question Python Tkinter scrollbar for frame, but using the widgets name from the OP's question and grid instead of pack:
import tkinter as tk
def update_scrollregion(event):
photoCanvas.configure(scrollregion=photoCanvas.bbox("all"))
root = tk.Tk()
photoFrame = tk.Frame(root, width=250, height=190, bg="#EBEBEB")
photoFrame.grid()
photoFrame.rowconfigure(0, weight=1)
photoFrame.columnconfigure(0, weight=1)
photoCanvas = tk.Canvas(photoFrame, bg="#EBEBEB")
photoCanvas.grid(row=0, column=0, sticky="nsew")
canvasFrame = tk.Frame(photoCanvas, bg="#EBEBEB")
photoCanvas.create_window(0, 0, window=canvasFrame, anchor='nw')
for i in range(10):
element = tk.Button(canvasFrame, text='Button %i' % i, borderwidth=0, bg="#EBEBEB")
element.grid(padx=5, pady=5, sticky="nsew")
photoScroll = tk.Scrollbar(photoFrame, orient=tk.VERTICAL)
photoScroll.config(command=photoCanvas.yview)
photoCanvas.config(yscrollcommand=photoScroll.set)
photoScroll.grid(row=0, column=1, sticky="ns")
canvasFrame.bind("<Configure>", update_scrollregion)
root.mainloop()

Tkinter: Placing the Labels one after another in Canvas relatively.

I would like to arrange the Labels in the canvas one after another. But placement is not coming out as desired.
Below is the function that inserts the labels in the canvas. But the ones in the for loop overlaps. Reason - some labels are larger in size than the other. Hence, I assume that largest size be 80 and do the placements respectively. I would like to change this type of approach. Rather I want the labels to be placed relatively one after the other.
def calculate(*args):
try:
ttk.Label(canvas, text="Result:").place(x=20, y=20)
ttk.Label(canvas, text="Topic:").place(x=20, y=80)
ttk.Label(canvas, textvariable=topic).place(x=200, y=80)
ttk.Label(canvas, text="Environment:").place(x=20, y=120)
ttk.Label(canvas, textvariable=environment).place(x=200, y=120)
ttk.Label(canvas, text="Event Results:").place(x=20, y=160)
inputValue=TextArea.get("1.0","end-1c")
len_max=0
result={}
for s in inputValue.splitlines():
data = MainInstance.searchWithPayload(s)
result[s]=data
if len(s+data) > len_max:
len_max = len(s+data)
i = 190
for key in result.keys():
print(key)
print(result[key])
ttk.Label(canvas, text=key+"\n\n"+result[key], wraplength=800).place(x=20,y = i)
i = i + 80
except ValueError:
pass
Below is the code that integrates the canvas widget. And the calculate button calls the calculate function.
ttk.Button(page2, text="Exit",command=page1.quit).grid(column=2, row=8)
ttk.Button(page2, text="Calculate", command=calculate).grid(column=3, row=8)
canvas = Canvas(root, width=900, height=universal_height)
canvas.grid(column=1, row=0)
root.mainloop()
Actually, there are two parts of the question:
How can I relatively place the label to stop the overlapping?
I tried adding the scroll to the canvas. But the application does not respond and does not pop up.
Code for adding the scrollbar:
canvas=Canvas(root,bg='#FFFFFF',width=300,height=300,scrollregion=
(0,0,500,500))
hbar=Scrollbar(root,orient=HORIZONTAL)
hbar.pack(side=BOTTOM,fill=X)
hbar.config(command=canvas.xview)
vbar=Scrollbar(root,orient=VERTICAL)
vbar.pack(side=RIGHT,fill=Y)
vbar.config(command=canvas.yview)
canvas.config(width=300,height=300)
canvas.config(xscrollcommand=hbar.set, yscrollcommand=vbar.set)
canvas.pack(side=LEFT,expand=True,fill=BOTH)
This is the output that I am getting, wherein the first two labels are getting overlapped.
If you want to scroll the widgets that you put inside the canvas, you need to use canvas.create_window(x, y, window=label) instead of label.place(...).
I suggest you to create a frame, grid all you labels inside it so that you won't have overlapping issues and put the frame inside the canvas using create_window to be able to scroll it:
import tkinter as tk
from tkinter import ttk
def on_resize(event):
"""Resize canvas scrollregion when the canvas is resized."""
canvas.configure(scrollregion=canvas.bbox('all'))
root = tk.Tk()
root.geometry('100x100')
root.columnconfigure(0, weight=1)
root.rowconfigure(0, weight=1)
canvas = tk.Canvas(root)
frame = ttk.Frame(canvas)
# create and grid the labels
for i in range(3):
for j in range(3):
ttk.Label(frame, text="Label %i-%i" % (i, j)).grid(row=i, column=j, padx=10, pady=10)
# put the frame in the canvas
canvas.create_window(0, 0, anchor='nw', window=frame)
# add the scrollbars
vbar = ttk.Scrollbar(root, orient='vertical', command=canvas.yview)
hbar = ttk.Scrollbar(root, orient='horizontal', command=canvas.xview)
canvas.configure(xscrollcommand=hbar.set,
yscrollcommand=vbar.set,
scrollregion=canvas.bbox('all'))
canvas.grid(row=0, column=0, sticky='eswn')
vbar.grid(row=0, column=1, sticky='ns')
hbar.grid(row=1, column=0, sticky='ew')
canvas.bind('<Configure>', on_resize)
root.mainloop()

Is it possible to make 'dynamically' adjustable widgets in Tkinter/ttk

I'm developing very simple GUI for my DB. It shows record's list/tree in DB on left panel and (if user clicks on some record) shows the record on the right panel.
Here some bit of code which creates GUI
from Tkinter import *
import ttk
master = Tk()
reclist = ttk.Treeview(columns=["TIME STAMP","HASH","MESSAGE"])
ysb = ttk.Scrollbar(orient=VERTICAL, command= reclist.yview)
xsb = ttk.Scrollbar(orient=HORIZONTAL, command= reclist.xview)
reclist['yscroll'] = ysb.set
reclist['xscroll'] = xsb.set
reclist.grid(in_=master, row=0, column=0, sticky=NSEW)
ysb.grid(in_=master, row=0, column=1, sticky=NS)
xsb.grid(in_=master, row=1, column=0, sticky=EW)
Comment = Text(master)
Comment.tag_configure("center", justify='center')
ysc = ttk.Scrollbar(orient=VERTICAL, command= Comment.yview)
xsc = ttk.Scrollbar(orient=HORIZONTAL, command= Comment.xview)
Comment.grid(in_=master,row=0,column=2,sticky=W+E+N+S)#, columnspan=5)
ysc.grid(in_=master, row=0, column=3, sticky=NS)
xsc.grid(in_=master, row=1, column=2, sticky=EW)
master.rowconfigure(0, weight=3)
master.columnconfigure(0, weight=3)
master.columnconfigure(2, weight=3)
master.mainloop()
Everything works pretty well, except that two panels are not adjustable. I cannot move border between them to make list of records or record panel bigger or smaller. I'm pretty sure in is possible (for example in gitk you can move the border between the list of commits and a displaied commit). I've search quite a lot with no luck.
What you are looking for is called a "PanedWindow". Both the tkinter and ttk modules have one, and they work almost identically. The general idea is that you create a PanedWindow instance, and then you add two or more widgets to it. The PanedWindow will add a movable slider between each widget. Typically you would use frames, which you can then fill up with other widgets.
Here is an example using the one in Tkinter:
import Tkinter as tk
root = tk.Tk()
pw = tk.PanedWindow()
pw.pack(fill="both", expand=True)
f1 = tk.Frame(width=200, height=200, background="bisque")
f2 = tk.Frame(width=200, height=200, background="pink")
pw.add(f1)
pw.add(f2)
# adding some widgets to the left...
text = tk.Text(f1, height=20, width=20, wrap="none")
ysb = tk.Scrollbar(f1, orient="vertical", command=text.yview)
xsb = tk.Scrollbar(f1, orient="horizontal", command=text.xview)
text.configure(yscrollcommand=ysb.set, xscrollcommand=xsb.set)
f1.grid_rowconfigure(0, weight=1)
f1.grid_columnconfigure(0, weight=1)
xsb.grid(row=1, column=0, sticky="ew")
ysb.grid(row=0, column=1, sticky="ns")
text.grid(row=0, column=0, sticky="nsew")
# and to the right...
b1 = tk.Button(f2, text="Click me!")
s1 = tk.Scale(f2, from_=1, to=20, orient="horizontal")
b1.pack(side="top", fill="x")
s1.pack(side="top", fill="x")
root.mainloop()

Tkinter Button Alignment in Grid

I am attempting to fit two buttons on a grid within a frame, that takes up the entire row, no matter the size of the root frame. So essentially one button takes up half of the row, while the other takes the other half. Here's my code:
self.button_frame = tk.Frame(self)
self.button_frame.pack(fill=tk.X, side=tk.BOTTOM)
self.reset_button = tk.Button(self.button_frame, text='Reset')
self.run_button = tk.Button(self.button_frame, text='Run')
self.reset_button.grid(row=0, column=0)
self.run_button.grid(row=0, column=1)
Not really sure where to go from here. Any suggestions would be greatly appreciated. Thanks!
Use columnconfigure to set the weight of your columns. Then, when the window stretches, so will the columns. Give your buttons W and E sticky values, so that when the cells stretch, so do the buttons.
import Tkinter as tk
root = tk.Tk()
button_frame = tk.Frame(root)
button_frame.pack(fill=tk.X, side=tk.BOTTOM)
reset_button = tk.Button(button_frame, text='Reset')
run_button = tk.Button(button_frame, text='Run')
button_frame.columnconfigure(0, weight=1)
button_frame.columnconfigure(1, weight=1)
reset_button.grid(row=0, column=0, sticky=tk.W+tk.E)
run_button.grid(row=0, column=1, sticky=tk.W+tk.E)
root.mainloop()
Result:

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