Demo/tkinter/matt/packer-and-placer-together.py

   1 from Tkinter import *
   2
   3 # This is a program that tests the placer geom manager in conjunction with
   4 # the packer. The background (green) is packed, while the widget inside is placed
   5
   6
   7 def do_motion(event):
   8     app.button.place({'x' : event.x,
   9                       'y' : event.y})
  10
  11 def dothis():
  12     print 'calling me!'
  13
  14 def createWidgets(top):
  15     # make a frame. Note that the widget is 200 x 200
  16     # and the window containing is 400x400. We do this
  17     # simply to show that this is possible. The rest of the
  18     # area is inaccesssible.
  19     f = Frame(top, {'width' : '200',
  20                     'height' : '200',
  21                     'bg' : 'green'})
  22
  23     # note that we use a different manager here.
  24     # This way, the top level frame widget resizes when the
  25     # application window does.
  26     f.pack({'fill' : 'both',
  27             'expand' : 1})
  28
  29     # now make a button
  30     f.button = Button(f, {'fg' : 'red',
  31                           'text' : 'amazing',
  32                           'command' : dothis})
  33
  34     # and place it so that the nw corner is
  35     # 1/2 way along the top X edge of its' parent
  36     f.button.place({'relx' : '0.5',
  37                     'rely' : '0.0',
  38                     'anchor' : 'nw'})
  39
  40     # allow the user to move the button SUIT-style.
  41     f.bind('<Control-Shift-Motion>', do_motion)
  42
  43     return f
  44
  45 root = Tk()
  46 app = createWidgets(root)
  47 root.geometry("400x400")
  48 root.maxsize(1000, 1000)
  49 root.mainloop()
  50