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guimaker.py
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guimaker.py
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#Version 1
###############################################################################
# An extended Frame that makes window menus and tool-bars automatically.
# Use GuiMakerFrameMenu for embedded components (makes frame-based menus).
# Use GuiMakerWindowMenu for top-level windows (makes Tk8.0 window menus).
# See the self-test code (and PyEdit) for an example layout tree format.
###############################################################################
import sys
from Tkinter import * # widget classes
from types import * # type constants
class GuiMaker(Frame):
menuBar = [] # class defaults
toolBar = [] # change per instance in subclasses
helpButton = 1 # set these in start() if need self
def __init__(self, parent=None):
Frame.__init__(self, parent)
self.pack(expand=YES, fill=BOTH) # make frame stretchable
self.start() # for subclass: set menu/toolBar
self.makeMenuBar() # done here: build menu-bar
self.makeToolBar() # done here: build tool-bar
self.makeWidgets() # for subclass: add middle part
def makeMenuBar(self):
"""
make menu bar at the top (Tk8.0 menus below)
expand=no, fill=x so same width on resize
"""
menubar = Frame(self, relief=RAISED, bd=2)
menubar.pack(side=BOTTOM, fill=X)
for (name, key, items) in self.menuBar:
mbutton = Menubutton(menubar, text=name, underline=key)
mbutton.pack(side=LEFT)
pulldown = Menu(mbutton)
self.addMenuItems(pulldown, items)
mbutton.config(menu=pulldown)
"""
if self.helpButton:
pass
Button(menubar, text = 'Add Attachement',
relief = FLAT,
command = self.help).pack(side=BOTTOM)
"""
def addMenuItems(self, menu, items):
for item in items: # scan nested items list
if item == 'separator': # string: add separator
menu.add_separator({})
elif type(item) == ListType: # list: disabled item list
for num in item:
menu.entryconfig(num, state=DISABLED)
elif type(item[2]) != ListType:
menu.add_command(label = item[0], # command:
underline = item[1], # add command
command = item[2]) # cmd=callable
else:
pullover = Menu(menu)
self.addMenuItems(pullover, item[2]) # sublist:
menu.add_cascade(label = item[0], # make submenu
underline = item[1], # add cascade
menu = pullover)
def makeToolBar(self):
"""
make button bar at bottom, if any
expand=no, fill=x so same width on resize
"""
if self.toolBar:
toolbar = Frame(self, cursor='hand2', relief=SUNKEN, bd=2)
toolbar.pack(side=BOTTOM, fill=X)
for (name, action, where) in self.toolBar:
Button(toolbar, text=name, command=action).pack(where)
def makeWidgets(self):
"""
make 'middle' part last, so menu/toolbar
is always on top/bottom and clipped last;
override this default, pack middle any side;
for grid: grid middle part in a packed frame
"""
name = Label(self,
width=40, height=10,
relief=SUNKEN, bg='white',
text = self.__class__.__name__,
cursor = 'crosshair')
name.pack(expand=YES, fill=BOTH, side=TOP)
def help(self):
"""
override me in subclass
"""
from tkMessageBox import showinfo
showinfo('Help', 'Sorry, no help for ' + self.__class__.__name__)
def start(self): pass # override me in subclass
###############################################################################
# For Tk 8.0 main window menubar, instead of a frame
###############################################################################
GuiMakerFrameMenu = GuiMaker # use this for embedded component menus
class GuiMakerWindowMenu(GuiMaker): # use this for top-level window menus
def makeMenuBar(self):
menubar = Menu(self.master)
self.master.config(menu=menubar)
for (name, key, items) in self.menuBar:
pulldown = Menu(menubar)
self.addMenuItems(pulldown, items)
menubar.add_cascade(label=name, underline=key, menu=pulldown)
if self.helpButton:
if sys.platform[:3] == 'win':
pass
#menubar.add_command(label='Help', command=self.help)
else:
pass
#pulldown = Menu(menubar) # linux needs real pulldown
#pulldown.add_command(label='About', command=self.help)
#menubar.add_cascade(label='Help', menu=pulldown)
###############################################################################
# Self test when file run stand-alone: 'python guimaker.py'
###############################################################################
if __name__ == '__main__':
from guimixin import GuiMixin # mixin a help method
menuBar = [
('File', 0,
[('Open', 0, lambda:0), # lambda:0 is a no-op
('Quit', 0, sys.exit)]), # use sys, no self here
('Edit', 0,
[('Cut', 0, lambda:0),
('Paste', 0, lambda:0)]) ]
toolBar = [('Quit', sys.exit, {'side': LEFT})]
class TestAppFrameMenu(GuiMixin, GuiMakerFrameMenu):
def start(self):
self.menuBar = menuBar
self.toolBar = toolBar
class TestAppWindowMenu(GuiMixin, GuiMakerWindowMenu):
def start(self):
self.menuBar = menuBar
self.toolBar = toolBar
class TestAppWindowMenuBasic(GuiMakerWindowMenu):
def start(self):
self.menuBar = menuBar
self.toolBar = toolBar # guimaker help, not guimixin
root = Tk()
TestAppFrameMenu(Toplevel())
TestAppWindowMenu(Toplevel())
TestAppWindowMenuBasic(root)
root.mainloop()