Tkinter study notes (III)

1.Label Control

Grammar format ：label=tk.Label(master,option,…)
among master Is its parent control , Used to place this control .
Tkinter Container control has no background property , Usually use Label Image property to add a background image to the container control

import tkinter as tk
import time
from PIL import Image,ImageTk
root=tk.Tk()
root.title(' Latest time ')
root.geometry('400x400')
imgg=Image.open('D://anaconda3//1.jpg')
img=ImageTk.PhotoImage(imgg)
label_img=tk.Label(root,image=img)
label_img.place(x=0,y=0)
time1=tk.StringVar()
time2=tk.StringVar()
L1=tk.Label(root,textvariable=time1,bg='#1E288F',fg='red')
L2=tk.Label(root,textvariable=time2,bg='#1E288F',fg='blue')
L1.pack()
L2.pack()

def settime():
    today=str(' Current date :'+time.strftime('%Y-%m-%d',time.localtime(time.time())))
    time3=str(' present time :'+time.strftime('%H:%M:%S',time.localtime(time.time())))
    time1.set(today)
    time2.set(time3)
settime()

root.mainloop()

2.Frame Control

Frame Control is responsible for arranging the location of other controls .
Window screen layout process ：
First establish the layout ： Main window layout , In different colors and sizes Frame Class , Adjust the position until you are satisfied .
Secondly, the sub windows with different functions are designed , Is to put Frame Class placement Frame in
Finally, different functions can be programmed according to the needs Frame Class is displayed in the corresponding main window

import tkinter as tk
root=tk.Tk()
root.title('Frame demonstration ')

labels=[]
reliefs=[tk.FLAT,tk.SUNKEN,tk.RAISED,tk.GROOVE,tk.RIDGE]

i=0
for color in ['blue','red','yellow','purple','pink']:
    f=tk.Frame(root,borderwidth=1,bg=color,relief=reliefs[i],bd=20,width=100,height=100).pack(side=tk.LEFT)
    i+=1
root.mainloop()
# Picture 3 

3.Button Control

Used to implement various buttons containing text and graphics .

import tkinter as tk
def hello():
    print('hello!')
root=tk.Tk()
root.title('Button test ')
tk.Button(root,text=' On the left ',compound='left',bitmap='error',cursor='heart').pack()
tk.Button(root,text=' Call the command ',width=23,fg='red',bd=2,command=hello,cursor='icon',underline=4).pack()
tk.Button(root,text=' Appearance decoration ',width=19,relief=tk.GROOVE,bg='yellow',cursor='mouse').pack()
tk.Button(root,text=' Set the height, width and text display position ',anchor=tk.SW,width=32,height=4,cursor='man').pack()
root.mainloop()
# picture 4,5

4.Entry Control

The control is Tkinter Text box , A control used to receive input such as strings , Allow users to view and modify a line of text .

import tkinter as tk
root=tk.Tk()
tk.Label(root,text=' works :').grid(row=0)
tk.Label(root,text=' author :').grid(row=1)

a1=tk.Entry(root)
a2=tk.Entry(root)

a1.grid(row=0,column=1,padx=10,pady=5)
a2.grid(row=1,column=1,padx=10,pady=5)

def show():
    print(' works :《%s》'%a1.get())
    print(' author :%s'%a2.get())
    a1.delete(0,"end")
    a2.delete(0,"end")
tk.Button(root,text=' Show ',command=show,width=10).grid(row=3,column=0)
tk.Button(root,text=' sign out ',command=root.quit,width=10).grid(row=3,column=1)

root.mainloop()
# picture 6,7

5.Text Control

The main function is to display multiple lines of text , It is often used as a simple text processor 、 Text editor to use .

import tkinter as tk
root=tk.Tk()
text=tk.Text(root,width=30,height=10)
#INSERT The index indicates inserting... At the cursor 
text.insert(tk.INSERT,' middle ')
text.insert(tk.END,' Last ')
text.pack()

# eliminate text Control 
#text.delete(1.0,tk.END)

# Get all the contents of the control 
t1=text.get(1.0,tk.END)

# Insert a picture 
#photo=PhotoImage(file='cat.gif')
#text.image_create(END,image=photo)

# Insert button Button 
def show():
    text.insert(tk.END,' Oh dear , I was clicked ')
b1=tk.Button(text,text=' Am I ',command=show).pack()
# stay text Commands for creating controls in 
text.window_create(tk.INSERT,window=b1)
root.mainloop()

6.Scrollbar Control

Used to scroll the visible range of some controls , Usually with text,canvas,listbox Control .
It is divided into vertical scroll bar and horizontal scroll bar .

import tkinter as tk
root=tk.Tk()
root.title('scrollbar Control ')

s=tk.Scrollbar(root).pack(side=tk.RIGHT,fil=tk.Y)
t=tk.Text(root,height=4,width=50).pack(side=tk.LEFT,fill=tk.Y)
s.config(command=t.yview)
t.config(yscrollcommand=s.set)
quote="""Nothing is impossible to a willing heart"""
t.insert(tk.END,quote)
root.mainloop()

7.Canvas Control

Usually used to display and edit graphics , That is, draw line segments 、 Circles and polygons and even other controls .

import tkinter as tk
root=tk.Tk()
canvas_width=300
canvas_height=200
def check(canvas,line_distance):
    for x in range(line_distance,canvas_width,line_distance):
        canvas.create_line(x,0,x,canvas_height,fill='red')
    for y in range(line_distance,canvas_height,line_distance):
        canvas.create_line(0,y,x,canvas_width,fill='red')
def paint(event):
    a='black'
    x1,y1=(event.x-1),(event.y-1)
    x2,y2=(event.x+1),(event.y+1)
    canvas.create_oval(x1,y1,x2,y2,fill=a)
root.title(' mapping ')
canvas=tk.Canvas(root,width=canvas_width,height=canvas_height)
canvas.pack(expand=tk.YES,fill=tk.BOTH)

# Bind the left mouse button 
canvas.bind("<B1-Motion>",paint)

check(canvas,20)

message=tk.Label(root,text=' Press the left key to draw ').pack(side=tk.BOTTOM)
root.mainloop()

import tkinter as tk
from tkinter import messagebox,filedialog,simpledialog,colorchooser
import tkinter.tix as tix

# Move the window to the center 
def setplace(window,x,y):
    width=window.winfo_width()
    height=window.winfo_height()
    window.geometry('{}x{}+{}+{}'.format(width,height,x,y))
def run(w):
    top=tix.Label(w,padx=20,pady=20,text='tixbuttonbox Use \n')
    box=tix.ButtonBox(w)
    def quit():
        result=messagebox.askyesno(' Tips ',' Really want to end ？')
        if result==True:
            w.destroy()
    box.add('ok',text='OK',underline=1,width=5,command=w.destroy)
    box.add('quit',text='QUIT',underline=1,width=5,command=quit)
    box.pack(side=tix.BOTTOM,fill=tix.X)
    top.pack(side=tix.TOP,fill=tix.BOTH,expand=1)
    
def run2(w):
    top=tix.Label(w,padx=20,pady=20,text='tixbuttonbox Use \n')
    box=tix.ButtonBox(w)
    def quit():
        result=messagebox.askyesno(' Tips ',' Really want to end ？')
        if result==True:
            w.destroy()
    box.add('ok',text=' determine ',underline=0,width=5,command=w.destroy)
    box.add('quit',text=' Cancel ',underline=0,width=5,command=quit)
    box.pack(side=tix.BOTTOM,fill=tix.X)
    top.pack(side=tix.TOP,fill=tix.BOTH,expand=1)
if __name__=='__main__':
    root=tix.Tk()
    run(root)
    top=tix.Toplevel(root)
    run2(top)
    root.update()
    root.title('tix.ButtonBox demonstration ')
    setplace(root,100,100)
    top.title('tix demonstration ')
    setplace(top,200, 200)
    root.mainloop()