Caution, newbie approaching...
I'm trying to come up with a very simple Tkinter test application that
consists of a window with a drop-down menu bar at the top and a grid
of colored rectangles filling the remainder of the window. Mind you,
this is a contrived test application to help me understand Tkinter and
Python, not an actual application yet. I've trivially subclassed
Tkinter.Canvas into ColorCanvas, added a bunch of ColorCanvases to a
trivial subclass of Tkinter.Frame called MultiColor, and then tried
adding a MultiColor and a subclass of Tkinter.Frame called
MultiColorMenu to a root window. The problem is that the menu bar is
overlaid on top of the MultiColor gridded frame, instead of above it.
I think the problem is that I don't know how to assign a widget as a
child to a parent widget. The code I'm talking about is copied below.
Any ideas?
Thanks,
josh
## Begin code.
import Tkinter
class ColorCanvas(Tkinter.Canvas):
"This class is simply a colored rectangle."
def __init__(self, background, numXPixels=300, numYPixels=100,
master=None):
## Initialize variables.
if master is None:
master = self
self.numXPixels = numXPixels
self.numYPixels = numYPixels
Tkinter.Canvas.__init__(master, background=background,
width=self.numXPixels, height=self.numYPixels, borderwidth=0)
class MultiColor(Tkinter.Frame):
"This class is a grid of colored rectangles."
def __init__(self, numOfColors, master=None):
Tkinter.Frame.__init__(self, master)
self.colors = []
for i in range(numOfColors):
self.colors.append(ColorCanvas(background='purple' ))
self.colors[i].grid(row=i/3, column=i%3)
class MultiColorMenu(Tkinter.Frame):
"This class is a bar of drop-down menus for manipulating a grid of
colored rectangles."
def __init__(self, master=None):
Tkinter.Frame.__init__(self, master)
self.tk_menuBar(self.help_menu())
def help_menu(self):
help_btn = Tkinter.Menubutton(self, text='Help', underline=0)
help_btn.pack(side=Tkinter.LEFT, padx="2m")
help_btn.menu = Tkinter.Menu(help_btn)
help_btn.menu.add_command(label="How To", underline=0,
command=self.helpFoo)
help_btn.menu.add_command(label="About", underline=0,
command=self.helpFoo)
help_btn['menu'] = help_btn.menu
return help_btn
def helpFoo(self):
print 'Heelllppppp!!!'
def main():
root = Tkinter.Tk()
root.title('Lifton\'s Fabulous Color Canvases')
mc = MultiColor(numOfColors=22, master=root)
#mc.pack(fill=Tkinter.BOTH, side=Tkinter.BOTTOM)
mc.grid(row=1, column=0)
mc_menus = MultiColorMenu(master=root)
#mc_menus.pack(fill=Tkinter.X, side=Tkinter.TOP)
mc_menus.grid(row=0, column=1)
root.mainloop()
main()
## End code.
