cpython/Demo/tkinter/guido/MimeViewer.py

#! /usr/bin/env python

# View a single MIME multipart message.
# Display each part as a box.

import string
from types import *
from Tkinter import *
from ScrolledText import ScrolledText

class MimeViewer:
	def __init__(self, parent, title, msg):
		self.title = title
		self.msg = msg
		self.frame = Frame(parent, {'relief': 'raised', 'bd': 2})
		self.frame.packing = {'expand': 0, 'fill': 'both'}
		self.button = Checkbutton(self.frame,
				     {'text': title,
				      'command': self.toggle})
		self.button.pack({'anchor': 'w'})
		headertext = msg.getheadertext(
			lambda x: x != 'received' and x[:5] != 'x400-')
		height = countlines(headertext, 4)
		if height:
			self.htext = ScrolledText(self.frame,
					  {'height': height,
					   'width': 80,
					   'wrap': 'none',
					   'relief': 'raised',
					   'bd': 2})
			self.htext.packing = {'expand': 1, 'fill': 'both',
					      'after': self.button}
			self.htext.insert('end', headertext)
		else:
			self.htext = Frame(self.frame,
					   {'relief': 'raised', 'bd': 2})
			self.htext.packing = {'side': 'top',
					      'ipady': 2,
					      'fill': 'x',
					      'after': self.button}
		body = msg.getbody()
		if type(body) == StringType:
			self.pad = None
			height = countlines(body, 10)
			if height:
				self.btext = ScrolledText(self.frame,
						  {'height': height,
						   'width': 80,
						   'wrap': 'none',
						   'relief': 'raised',
						   'bd': 2})
				self.btext.packing = {'expand': 1,
						      'fill': 'both'}
				self.btext.insert('end', body)
			else:
				self.btext = None
			self.parts = None
		else:
			self.pad = Frame(self.frame,
					 {'relief': 'flat', 'bd': 2})
			self.pad.packing = {'side': 'left', 'ipadx': 10,
					    'fill': 'y', 'after': self.htext}
			self.parts = []
			for i in range(len(body)):
				p = MimeViewer(self.frame,
					       '%s.%d' % (title, i+1),
					       body[i])
				self.parts.append(p)
			self.btext = None
		self.collapsed = 1
	def pack(self):
		self.frame.pack(self.frame.packing)
	def destroy(self):
		self.frame.destroy()
	def show(self):
		if self.collapsed:
			self.button.invoke()
	def toggle(self):
		if self.collapsed:
			self.explode()
		else:
			self.collapse()
	def collapse(self):
		self.collapsed = 1
		for comp in self.htext, self.btext, self.pad:
			if comp:
				comp.forget()
		if self.parts:
			for part in self.parts:
				part.frame.forget()
		self.frame.pack({'expand': 0})
	def explode(self):
		self.collapsed = 0
		for comp in self.htext, self.btext, self.pad:
			if comp: comp.pack(comp.packing)
		if self.parts:
			for part in self.parts:
				part.pack()
		self.frame.pack({'expand': 1})

def countlines(str, limit):
	i = 0
	n = 0
	while  n < limit:
		i = string.find(str, '\n', i)
		if i < 0: break
		n = n+1
		i = i+1
	return n

def main():
	import sys
	import getopt
	import mhlib
	opts, args = getopt.getopt(sys.argv[1:], '')
	for o, a in opts:
		pass
	message = None
	folder = 'inbox'
	for arg in args:
		if arg[:1] == '+':
			folder = arg[1:]
		else:
			message = string.atoi(arg)

	mh = mhlib.MH()
	f = mh.openfolder(folder)
	if not message:
		message = f.getcurrent()
	m = f.openmessage(message)

	root = Tk()
	tk = root.tk

	top = MimeViewer(root, '+%s/%d' % (folder, message), m)
	top.pack()
	top.show()

	root.minsize(1, 1)

	tk.mainloop()

if __name__ == '__main__': main()