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#
# Instant Python
# $Id$
#
# tk common file dialogues
#
# this module provides interfaces to the native file dialogues
# available in Tk 4.2 and newer.
#
# written by Fredrik Lundh, May 1997.
#
#
# options (all have default values):
#
# - defaultextension: added to filename if not explicitly given
#
# - filetypes: sequence of (label, pattern) tuples. the same pattern
# may occur with several patterns. use "*" as pattern to indicate
# all files.
#
# - initialdir: initial directory. preserved by dialog instance.
#
# - initialfile: initial file (ignored by the open dialog). preserved
# by dialog instance.
#
# - parent: which window to place the dialog on top of
#
# - title: dialog title
#
from tkCommonDialog import Dialog
class _Dialog(Dialog):
def _fixoptions(self):
try:
# make sure "filetypes" is a tuple
self.options["filetypes"] = tuple(self.options["filetypes"])
except KeyError:
pass
def _fixresult(self, widget, result):
if result:
# keep directory and filename until next time
import os
path, file = os.path.split(result)
self.options["initialdir"] = path
self.options["initialfile"] = file
self.filename = result # compatibility
return result
#
# file dialogs
class Open(_Dialog):
"Ask for a filename to open"
command = "tk_getOpenFile"
class SaveAs(_Dialog):
"Ask for a filename to save as"
command = "tk_getSaveFile"
#
# convenience stuff
def askopenfilename(**options):
"Ask for a filename to open"
return apply(Open, (), options).show()
def asksaveasfilename(**options):
"Ask for a filename to save as"
return apply(SaveAs, (), options).show()
# FIXME: are the following two perhaps a bit too convenient?
def askopenfile(mode = "r", **options):
"Ask for a filename to open, and returned the opened file"
filename = apply(Open, (), options).show()
if filename:
return open(filename, mode)
return None
def asksaveasfile(mode = "w", **options):
"Ask for a filename to save as, and returned the opened file"
filename = apply(SaveAs, (), options).show()
if filename:
return open(filename, mode)
return None
# --------------------------------------------------------------------
# test stuff
if __name__ == "__main__":
print "open", askopenfilename(filetypes=[("all filez", "*")])
print "saveas", asksaveasfilename()
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