Przykłady użycia widgetów Tkinter

Przykłady pokazana poniżej zostały zaczerpnięte ze strony: https://github.com/Programmica/python-tkinter-examples

<sxh python> ' Showcasing a Button added to a Window, which when clicked, outputs a message to the user. '

import tkinter

class Button(tkinter.Tk):

  def __init__(self):
      tkinter.Tk.__init__(self)
      self.title("Button")

      button = tkinter.Button(text="Button", command=self.on_button_click)
      button.pack(fill=tkinter.BOTH, expand=1)

  def on_button_click(self):
      print("Button clicked")

if name == “main”:

  application = Button()
  application.mainloop()

</sxh>

<sxh python> ' Entry example which takes any entered text and displays it when the user presses the button. '

import tkinter

class Entry(tkinter.Tk):

  def __init__(self):
      tkinter.Tk.__init__(self)
      self.title("Entry")

      self.entry = tkinter.Entry()
      self.entry.pack(fill=tkinter.BOTH, expand=0)

      button = tkinter.Button(text="Enter", command=self.on_button_click)
      button.pack(fill=tkinter.BOTH, expand=0)

  def on_button_click(self):
      print(self.entry.get())

if name == “main”:

  application = Entry()
  application.mainloop()

</sxh>

Wyczerpujący przykład można znaleźć na stronie: https://tkinter.unpythonic.net/wiki/tkFileDialog

Poniższy przykład został został zaczerpnięty z: https://gist.github.com/Yagisanatode/0d1baad4e3a871587ab1

<sxh python> from tkinter import * from tkinter import ttk from tkinter.filedialog import askopenfilename

root = Tk( )

#This is where we lauch the file manager bar. def OpenFile():

  name = askopenfilename(initialdir="C:/Users/Batman/Documents/Programming/tkinter/",
                         filetypes =(("Text File", "*.txt"),("All Files","*.*")),
                         title = "Choose a file."
                         )
  print (name)
  #Using try in case user types in unknown file or closes without choosing a file.
  try:
      with open(name,'r') as UseFile:
          print(UseFile.read())
  except:
      print("No file exists")

Title = root.title( “File Opener”)

#Menu Bar menu = Menu(root) root.config(menu=menu)

file = Menu(menu)

file.add_command(label = 'Open', command = OpenFile) file.add_command(label = 'Exit', command = lambda:exit())

menu.add_cascade(label = 'File', menu = file)

root.mainloop() </sxh>

<sxh python> ' The Grid container provides for multiple widgets to be inserted into a program based on defined rows and columns. '

import tkinter

class Grid(tkinter.Tk):

  def __init__(self):
      tkinter.Tk.__init__(self)
      self.title("Grid")

      grid = tkinter.Grid()

      label = tkinter.Label(text="Label 1")
      label.grid(row=0)
      label = tkinter.Label(text="Label 2")
      label.grid(row=0, column=1)
      label = tkinter.Label(text="Label 3")
      label.grid(row=1, column=2)
      label = tkinter.Label(text="Label 4")
      label.grid(row=4, column=3)
      label = tkinter.Label(text="Label 5")
      label.grid(row=2, column=0)

if name == “main”:

  application = Grid()
  application.mainloop()

</sxh>

<sxh python> ' Showcasing a LabelFrame widget with a packed Label widget. The frame also contains 10 pixel padding providing a gap within the frame edge. '

import tkinter

class LabelFrame(tkinter.Tk):

  def __init__(self):
      tkinter.Tk.__init__(self)
      self.title("LabelFrame")
      self.geometry("200x200")

      labelframe = tkinter.LabelFrame(text="LabelFrame", padx=10, pady=10)
      labelframe.pack(fill=tkinter.BOTH, expand=1)

      label = tkinter.Label(labelframe, text="This Label is packed\nwithin the LabelFram

e.“)

      label.pack(fill=tkinter.BOTH, expand=1)

if name == “main”:

  application = LabelFrame()
  application.mainloop()

</sxh>

<sxh python> ' The OptionMenu provides a dropdown from which an item can be selected from the pre-populated list. '

import tkinter

class OptionMenu(tkinter.Tk):

  def __init__(self):
      tkinter.Tk.__init__(self)
      self.title("OptionMenu")

      variable = tkinter.StringVar(self)
      variable.set("two")

      optionmenu = tkinter.OptionMenu(self, variable, "one", "two", "three")
      optionmenu.pack()

if name == “main”:

  application = OptionMenu()
  application.mainloop()

</sxh>

<sxh python> ' An example of three labels packed into three separate PanedWindow areas with values set for the width of handle and sash. '

import tkinter

class PanedWindow(tkinter.Tk):

  def __init__(self):
      tkinter.Tk.__init__(self)
      self.title("Label")

      panedwindow = tkinter.PanedWindow()
      panedwindow.config(handlesize=10)
      panedwindow.config(sashwidth=5)
      panedwindow.config(sashrelief=tkinter.RAISED)
      panedwindow.pack(fill=tkinter.BOTH, expand=1)

      label = tkinter.Label(text="Label in Pane 1")
      panedwindow.add(label)
      label = tkinter.Label(text="Label in Pane 2")
      panedwindow.add(label)
      label = tkinter.Label(text="Label in Pane 3")
      panedwindow.add(label)

if name == “main”:

  application = PanedWindow()
  application.mainloop()

</sxh>

<sxh python> ' Entry example which takes any entered text and displays it when the user presses the button. '

import tkinter

class Spinbox(tkinter.Tk):

  def __init__(self):
      tkinter.Tk.__init__(self)
      self.title("Spinbox")

      self.spinbox = tkinter.Spinbox(command=self.on_spinbox_change)
      self.spinbox.config(from_=10, to=20)
      self.spinbox.pack(fill=tkinter.BOTH, expand=0)

  def on_spinbox_change(self):
      print(self.spinbox.get())

if name == “main”:

  application = Spinbox()
  application.mainloop()

</sxh>

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