tkinter

Author: furas

tkinter/__BIND__/escape-close-window/main.py

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+#!/usr/bin/env python3 
+
+# date: 2020.01.02
+# ???
+
+
+import tkinter as tk
+
+# --- functions ---
+
+def stop(event):
+    root.destroy()
+   
+# --- main ---
+
+root = tk.Tk()
+
+root.bind('<Escape>', stop)
+root.focus()
+
+root.mainloop()

tkinter/bind-event/main.py

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+#!/usr/bin/env python3 
+
+# date: 2019.12.22
+#https://stackoverflow.com/questions/59441994/how-to-generate-tab-key-even-when-enter-key-pressed-in-tkinter-python
+
+
+
+import tkinter as tk
+
+root = tk.Tk()
+
+e1 = tk.Entry(root)
+e1.pack()
+e2 = tk.Entry(root)
+e2.pack()
+print(e1)
+#root.call('bind .!entry <Return> {event generate %W <Tab>}')
+#bind .w <Return> {event generate %W <Tab>}
+e1.bind('<Return>', 'event generate %W <Tab>')
+#e2.bind('<Return>', 'event generate %W <Tab>')
+#e2.bind('<Return>', lambda x:root.event_generate('<Tab>'))
+#e2.bind('<Return>', '<Tab>')
+e2.bind('<Return>', root.bind_all("<Tab>")) # doesn't work on Linux ?
+
+root.mainloop()

tkinter/progressbar/progressbar-multiprocessing-process-queue/main.py

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+#!/usr/bin/env python3 
+
+# date: 2019.12.21
+# 
+
+import multiprocessing
+import time
+import tkinter.ttk as ttk
+#from tkinter import * # not preferred
+import tkinter as tk
+
+class SubWindow:
+    
+    def __init__(self, master):
+        self.master = master
+
+        self.win = tk.Toplevel(master)
+        #self.win.wm_attributes('-topmost', 1)
+        
+        l = tk.Label(self.win, text='Please, wait...')
+        l.pack()
+
+        self.pb = ttk.Progressbar(self.win, mode="determinate")
+        self.pb.pack()
+        
+        self.queue = multiprocessing.Queue()
+        
+        self.p = multiprocessing.Process(target=self.process, args=(self.queue,))
+        self.p.start()
+        #p.join() # don't use in this place becaus it blocks all code
+
+        self.update_progressbar()
+
+    def update_progressbar(self):
+        if not self.queue.empty():
+            self.pb['value'] += self.queue.get()
+            
+        if self.pb['value'] < 100:
+            self.win.after(100, self.update_progressbar)
+        else:
+            self.p.join()
+            self.win.destroy()
+            
+    def process(self, queue):
+        for i in range(10):
+            print('loop:', i)
+            queue.put(10)
+            time.sleep(.5)
+
+
+if __name__ == "__main__":
+    root = tk.Tk()
+    tk.Button(root, text='Start processing!', command=lambda:SubWindow(root)).pack(side='top')
+    root.mainloop()

tkinter/text/disabled-insert-text/main,py

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+#!/usr/bin/env python3 
+
+# date: 2020.01.02
+# ???
+
+import tkinter as tk
+import tkinter.scrolledtext as st
+import datetime
+
+# --- functions ---
+
+def on_click():
+    text['state'] = 'normal'
+    text.insert('end', str(datetime.datetime.now()) + '\n')
+    text['state'] = 'disabled'
+    
+# --- main ---
+
+root = tk.Tk()
+
+text = st.ScrolledText(root, state='disabled')
+text.pack()
+
+button = tk.Button(root, text='ADD', command=on_click)
+button.pack()
+
+root.mainloop()