Data commit

Task/GUI-component-interaction/Python/gui-component-interaction-1.py

@@ -0,0 +1,24 @@
+import random, tkMessageBox
+from Tkinter import *
+window = Tk()
+window.geometry("300x50+100+100")
+options = { "padx":5, "pady":5}
+s=StringVar()
+s.set(1)
+def increase():
+    s.set(int(s.get())+1)
+def rand():
+    if tkMessageBox.askyesno("Confirmation", "Reset to random value ?"):
+        s.set(random.randrange(0,5000))
+def update(e):
+    if not e.char.isdigit():
+        tkMessageBox.showerror('Error', 'Invalid input !')
+        return "break"
+e = Entry(text=s)
+e.grid(column=0, row=0, **options)
+e.bind('<Key>', update)
+b1 = Button(text="Increase", command=increase, **options )
+b1.grid(column=1, row=0, **options)
+b2 = Button(text="Random", command=rand, **options)
+b2.grid(column=2, row=0, **options)
+mainloop()

Task/GUI-component-interaction/Python/gui-component-interaction-2.py

@@ -0,0 +1,29 @@
+import random, tkinter.messagebox
+from tkinter import *
+
+window = Tk()
+window.geometry("330x50+100+100")
+options = { "padx":5, "pady":5}
+s=StringVar()
+s.set(1)
+
+def increase():
+    s.set(int(s.get())+1)
+def rand():
+    if messagebox.askyesno("Confirmation", "Reset to random value ?"):
+        s.set(random.randrange(0,5000))
+def update(e):
+    if not e.char.isdigit():
+        messagebox.showerror('Error', 'Invalid input !')
+        return "break"
+
+e = Entry(text=s)
+e.grid(column=0, row=0, **options)
+e.bind('<Key>', update)
+
+b1 = Button(text="Increase", command=increase, **options )
+b1.grid(column=1, row=0, **options)
+b2 = Button(text="Random", command=rand, **options)
+b2.grid(column=2, row=0, **options)
+
+mainloop()

Task/GUI-component-interaction/Python/gui-component-interaction-3.py

@@ -0,0 +1,53 @@
+import random
+from Tkinter import *
+import tkMessageBox
+
+class Application(Frame):
+    def __init__(self, master):
+        Frame.__init__(self, master)
+        self.counter = 0
+        self.contents = StringVar()
+        self.contents.set(str(self.counter))
+        self.pack(expand=True, fill='both', padx=10, pady=15)
+        self.create_widgets()
+
+    def increment(self, *args):
+        self.counter += 1
+        self.update_entry()
+
+    def random(self):
+        if tkMessageBox.askyesno("Confirmation", "Reset to random value ?"):
+            self.counter = random.randint(0, 5000)
+            self.update_entry()
+
+    def entry_updated(self, event, *args):
+        if not event.char:
+            return 'break'
+        if not event.char.isdigit():
+            tkMessageBox.showerror('Error', 'Invalid input !')
+            return 'break'
+        self.counter = int('%s%s' % (self.contents.get(), event.char))
+
+    def update_entry(self):
+        self.contents.set(str(self.counter))
+        self.entry['textvariable'] = self.contents
+
+    def create_widgets(self):
+        options = {'expand': True, 'fill': 'x', 'side': 'left', 'padx': 5}
+        self.entry = Entry(self)
+        self.entry.bind('<Key>', self.entry_updated)
+        self.entry.pack(**options)
+        self.update_entry()
+        self.increment_button = Button(self, text='Increment', command=self.increment)
+        self.increment_button.pack(**options)
+        self.random_button = Button(self, text='Random', command=self.random)
+        self.random_button.pack(**options)
+
+if __name__ == '__main__':
+    root = Tk()
+    try:
+        app = Application(master=root)
+        app.master.title("Rosetta code")
+        app.mainloop()
+    except KeyboardInterrupt:
+        root.destroy()