Remove rest of the tkinter package.

This commit is contained in:
Georg Brandl 2008-05-20 07:23:25 +00:00
parent 3682dfead5
commit d66c84f63c
2 changed files with 0 additions and 902 deletions

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"""File selection dialog classes.
Classes:
- FileDialog
- LoadFileDialog
- SaveFileDialog
This module also presents tk common file dialogues, it provides interfaces
to the native file dialogues available in Tk 4.2 and newer, and the
directory dialogue available in Tk 8.3 and newer.
These interfaces were written by Fredrik Lundh, May 1997.
"""
from tkinter import *
from tkinter.dialog import Dialog
from tkinter import commondialog
import os
import fnmatch
dialogstates = {}
class FileDialog:
"""Standard file selection dialog -- no checks on selected file.
Usage:
d = FileDialog(master)
fname = d.go(dir_or_file, pattern, default, key)
if fname is None: ...canceled...
else: ...open file...
All arguments to go() are optional.
The 'key' argument specifies a key in the global dictionary
'dialogstates', which keeps track of the values for the directory
and pattern arguments, overriding the values passed in (it does
not keep track of the default argument!). If no key is specified,
the dialog keeps no memory of previous state. Note that memory is
kept even when the dialog is canceled. (All this emulates the
behavior of the Macintosh file selection dialogs.)
"""
title = "File Selection Dialog"
def __init__(self, master, title=None):
if title is None: title = self.title
self.master = master
self.directory = None
self.top = Toplevel(master)
self.top.title(title)
self.top.iconname(title)
self.botframe = Frame(self.top)
self.botframe.pack(side=BOTTOM, fill=X)
self.selection = Entry(self.top)
self.selection.pack(side=BOTTOM, fill=X)
self.selection.bind('<Return>', self.ok_event)
self.filter = Entry(self.top)
self.filter.pack(side=TOP, fill=X)
self.filter.bind('<Return>', self.filter_command)
self.midframe = Frame(self.top)
self.midframe.pack(expand=YES, fill=BOTH)
self.filesbar = Scrollbar(self.midframe)
self.filesbar.pack(side=RIGHT, fill=Y)
self.files = Listbox(self.midframe, exportselection=0,
yscrollcommand=(self.filesbar, 'set'))
self.files.pack(side=RIGHT, expand=YES, fill=BOTH)
btags = self.files.bindtags()
self.files.bindtags(btags[1:] + btags[:1])
self.files.bind('<ButtonRelease-1>', self.files_select_event)
self.files.bind('<Double-ButtonRelease-1>', self.files_double_event)
self.filesbar.config(command=(self.files, 'yview'))
self.dirsbar = Scrollbar(self.midframe)
self.dirsbar.pack(side=LEFT, fill=Y)
self.dirs = Listbox(self.midframe, exportselection=0,
yscrollcommand=(self.dirsbar, 'set'))
self.dirs.pack(side=LEFT, expand=YES, fill=BOTH)
self.dirsbar.config(command=(self.dirs, 'yview'))
btags = self.dirs.bindtags()
self.dirs.bindtags(btags[1:] + btags[:1])
self.dirs.bind('<ButtonRelease-1>', self.dirs_select_event)
self.dirs.bind('<Double-ButtonRelease-1>', self.dirs_double_event)
self.ok_button = Button(self.botframe,
text="OK",
command=self.ok_command)
self.ok_button.pack(side=LEFT)
self.filter_button = Button(self.botframe,
text="Filter",
command=self.filter_command)
self.filter_button.pack(side=LEFT, expand=YES)
self.cancel_button = Button(self.botframe,
text="Cancel",
command=self.cancel_command)
self.cancel_button.pack(side=RIGHT)
self.top.protocol('WM_DELETE_WINDOW', self.cancel_command)
# XXX Are the following okay for a general audience?
self.top.bind('<Alt-w>', self.cancel_command)
self.top.bind('<Alt-W>', self.cancel_command)
def go(self, dir_or_file=os.curdir, pattern="*", default="", key=None):
if key and dialogstates.has_key(key):
self.directory, pattern = dialogstates[key]
else:
dir_or_file = os.path.expanduser(dir_or_file)
if os.path.isdir(dir_or_file):
self.directory = dir_or_file
else:
self.directory, default = os.path.split(dir_or_file)
self.set_filter(self.directory, pattern)
self.set_selection(default)
self.filter_command()
self.selection.focus_set()
self.top.wait_visibility() # window needs to be visible for the grab
self.top.grab_set()
self.how = None
self.master.mainloop() # Exited by self.quit(how)
if key:
directory, pattern = self.get_filter()
if self.how:
directory = os.path.dirname(self.how)
dialogstates[key] = directory, pattern
self.top.destroy()
return self.how
def quit(self, how=None):
self.how = how
self.master.quit() # Exit mainloop()
def dirs_double_event(self, event):
self.filter_command()
def dirs_select_event(self, event):
dir, pat = self.get_filter()
subdir = self.dirs.get('active')
dir = os.path.normpath(os.path.join(self.directory, subdir))
self.set_filter(dir, pat)
def files_double_event(self, event):
self.ok_command()
def files_select_event(self, event):
file = self.files.get('active')
self.set_selection(file)
def ok_event(self, event):
self.ok_command()
def ok_command(self):
self.quit(self.get_selection())
def filter_command(self, event=None):
dir, pat = self.get_filter()
try:
names = os.listdir(dir)
except os.error:
self.master.bell()
return
self.directory = dir
self.set_filter(dir, pat)
names.sort()
subdirs = [os.pardir]
matchingfiles = []
for name in names:
fullname = os.path.join(dir, name)
if os.path.isdir(fullname):
subdirs.append(name)
elif fnmatch.fnmatch(name, pat):
matchingfiles.append(name)
self.dirs.delete(0, END)
for name in subdirs:
self.dirs.insert(END, name)
self.files.delete(0, END)
for name in matchingfiles:
self.files.insert(END, name)
head, tail = os.path.split(self.get_selection())
if tail == os.curdir: tail = ''
self.set_selection(tail)
def get_filter(self):
filter = self.filter.get()
filter = os.path.expanduser(filter)
if filter[-1:] == os.sep or os.path.isdir(filter):
filter = os.path.join(filter, "*")
return os.path.split(filter)
def get_selection(self):
file = self.selection.get()
file = os.path.expanduser(file)
return file
def cancel_command(self, event=None):
self.quit()
def set_filter(self, dir, pat):
if not os.path.isabs(dir):
try:
pwd = os.getcwd()
except os.error:
pwd = None
if pwd:
dir = os.path.join(pwd, dir)
dir = os.path.normpath(dir)
self.filter.delete(0, END)
self.filter.insert(END, os.path.join(dir or os.curdir, pat or "*"))
def set_selection(self, file):
self.selection.delete(0, END)
self.selection.insert(END, os.path.join(self.directory, file))
class LoadFileDialog(FileDialog):
"""File selection dialog which checks that the file exists."""
title = "Load File Selection Dialog"
def ok_command(self):
file = self.get_selection()
if not os.path.isfile(file):
self.master.bell()
else:
self.quit(file)
class SaveFileDialog(FileDialog):
"""File selection dialog which checks that the file may be created."""
title = "Save File Selection Dialog"
def ok_command(self):
file = self.get_selection()
if os.path.exists(file):
if os.path.isdir(file):
self.master.bell()
return
d = Dialog(self.top,
title="Overwrite Existing File Question",
text="Overwrite existing file %r?" % (file,),
bitmap='questhead',
default=1,
strings=("Yes", "Cancel"))
if d.num != 0:
return
else:
head, tail = os.path.split(file)
if not os.path.isdir(head):
self.master.bell()
return
self.quit(file)
# For the following classes and modules:
#
# 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
#
# - multiple: if true user may select more than one file
#
# options for the directory chooser:
#
# - initialdir, parent, title: see above
#
# - mustexist: if true, user must pick an existing directory
#
class _Dialog(commondialog.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
# convert Tcl path objects to strings
try:
result = result.string
except AttributeError:
# it already is a string
pass
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"
def _fixresult(self, widget, result):
if isinstance(result, tuple):
# multiple results:
result = tuple([getattr(r, "string", r) for r in result])
if result:
import os
path, file = os.path.split(result[0])
self.options["initialdir"] = path
# don't set initialfile or filename, as we have multiple of these
return result
if not widget.tk.wantobjects() and "multiple" in self.options:
# Need to split result explicitly
return self._fixresult(widget, widget.tk.splitlist(result))
return _Dialog._fixresult(self, widget, result)
class SaveAs(_Dialog):
"Ask for a filename to save as"
command = "tk_getSaveFile"
# the directory dialog has its own _fix routines.
class Directory(Dialog):
"Ask for a directory"
command = "tk_chooseDirectory"
def _fixresult(self, widget, result):
if result:
# convert Tcl path objects to strings
try:
result = result.string
except AttributeError:
# it already is a string
pass
# keep directory until next time
self.options["initialdir"] = result
self.directory = result # compatibility
return result
#
# convenience stuff
def askopenfilename(**options):
"Ask for a filename to open"
return Open(**options).show()
def asksaveasfilename(**options):
"Ask for a filename to save as"
return SaveAs(**options).show()
def askopenfilenames(**options):
"""Ask for multiple filenames to open
Returns a list of filenames or empty list if
cancel button selected
"""
options["multiple"]=1
return Open(**options).show()
# FIXME: are the following perhaps a bit too convenient?
def askopenfile(mode = "r", **options):
"Ask for a filename to open, and returned the opened file"
filename = Open(**options).show()
if filename:
return open(filename, mode)
return None
def askopenfiles(mode = "r", **options):
"""Ask for multiple filenames and return the open file
objects
returns a list of open file objects or an empty list if
cancel selected
"""
files = askopenfilenames(**options)
if files:
ofiles=[]
for filename in files:
ofiles.append(open(filename, mode))
files=ofiles
return files
def asksaveasfile(mode = "w", **options):
"Ask for a filename to save as, and returned the opened file"
filename = SaveAs(**options).show()
if filename:
return open(filename, mode)
return None
def askdirectory (**options):
"Ask for a directory, and return the file name"
return Directory(**options).show()
# --------------------------------------------------------------------
# test stuff
def test():
"""Simple test program."""
root = Tk()
root.withdraw()
fd = LoadFileDialog(root)
loadfile = fd.go(key="test")
fd = SaveFileDialog(root)
savefile = fd.go(key="test")
print loadfile, savefile
# Since the file name may contain non-ASCII characters, we need
# to find an encoding that likely supports the file name, and
# displays correctly on the terminal.
# Start off with UTF-8
enc = "utf-8"
import sys
# See whether CODESET is defined
try:
import locale
locale.setlocale(locale.LC_ALL,'')
enc = locale.nl_langinfo(locale.CODESET)
except (ImportError, AttributeError):
pass
# dialog for openening files
openfilename=askopenfilename(filetypes=[("all files", "*")])
try:
fp=open(openfilename,"r")
fp.close()
except:
print "Could not open File: "
print sys.exc_info()[1]
print "open", openfilename.encode(enc)
# dialog for saving files
saveasfilename=asksaveasfilename()
print "saveas", saveasfilename.encode(enc)
if __name__ == '__main__':
test()

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#
# An Introduction to Tkinter
#
# Copyright (c) 1997 by Fredrik Lundh
#
# This copyright applies to Dialog, askinteger, askfloat and asktring
#
# fredrik@pythonware.com
# http://www.pythonware.com
#
"""This modules handles dialog boxes.
It contains the following public symbols:
SimpleDialog -- A simple but flexible modal dialog box
Dialog -- a base class for dialogs
askinteger -- get an integer from the user
askfloat -- get a float from the user
askstring -- get a string from the user
"""
from tkinter import *
from tkinter import messagebox
import tkinter # used at _QueryDialog for tkinter._default_root
class SimpleDialog:
def __init__(self, master,
text='', buttons=[], default=None, cancel=None,
title=None, class_=None):
if class_:
self.root = Toplevel(master, class_=class_)
else:
self.root = Toplevel(master)
if title:
self.root.title(title)
self.root.iconname(title)
self.message = Message(self.root, text=text, aspect=400)
self.message.pack(expand=1, fill=BOTH)
self.frame = Frame(self.root)
self.frame.pack()
self.num = default
self.cancel = cancel
self.default = default
self.root.bind('<Return>', self.return_event)
for num in range(len(buttons)):
s = buttons[num]
b = Button(self.frame, text=s,
command=(lambda self=self, num=num: self.done(num)))
if num == default:
b.config(relief=RIDGE, borderwidth=8)
b.pack(side=LEFT, fill=BOTH, expand=1)
self.root.protocol('WM_DELETE_WINDOW', self.wm_delete_window)
self._set_transient(master)
def _set_transient(self, master, relx=0.5, rely=0.3):
widget = self.root
widget.withdraw() # Remain invisible while we figure out the geometry
widget.transient(master)
widget.update_idletasks() # Actualize geometry information
if master.winfo_ismapped():
m_width = master.winfo_width()
m_height = master.winfo_height()
m_x = master.winfo_rootx()
m_y = master.winfo_rooty()
else:
m_width = master.winfo_screenwidth()
m_height = master.winfo_screenheight()
m_x = m_y = 0
w_width = widget.winfo_reqwidth()
w_height = widget.winfo_reqheight()
x = m_x + (m_width - w_width) * relx
y = m_y + (m_height - w_height) * rely
if x+w_width > master.winfo_screenwidth():
x = master.winfo_screenwidth() - w_width
elif x < 0:
x = 0
if y+w_height > master.winfo_screenheight():
y = master.winfo_screenheight() - w_height
elif y < 0:
y = 0
widget.geometry("+%d+%d" % (x, y))
widget.deiconify() # Become visible at the desired location
def go(self):
self.root.wait_visibility()
self.root.grab_set()
self.root.mainloop()
self.root.destroy()
return self.num
def return_event(self, event):
if self.default is None:
self.root.bell()
else:
self.done(self.default)
def wm_delete_window(self):
if self.cancel is None:
self.root.bell()
else:
self.done(self.cancel)
def done(self, num):
self.num = num
self.root.quit()
class Dialog(Toplevel):
'''Class to open dialogs.
This class is intended as a base class for custom dialogs
'''
def __init__(self, parent, title = None):
'''Initialize a dialog.
Arguments:
parent -- a parent window (the application window)
title -- the dialog title
'''
Toplevel.__init__(self, parent)
# If the master is not viewable, don't
# make the child transient, or else it
# would be opened withdrawn
if parent.winfo_viewable():
self.transient(parent)
if title:
self.title(title)
self.parent = parent
self.result = None
body = Frame(self)
self.initial_focus = self.body(body)
body.pack(padx=5, pady=5)
self.buttonbox()
self.wait_visibility() # window needs to be visible for the grab
self.grab_set()
if not self.initial_focus:
self.initial_focus = self
self.protocol("WM_DELETE_WINDOW", self.cancel)
if self.parent is not None:
self.geometry("+%d+%d" % (parent.winfo_rootx()+50,
parent.winfo_rooty()+50))
self.initial_focus.focus_set()
self.wait_window(self)
def destroy(self):
'''Destroy the window'''
self.initial_focus = None
Toplevel.destroy(self)
#
# construction hooks
def body(self, master):
'''create dialog body.
return widget that should have initial focus.
This method should be overridden, and is called
by the __init__ method.
'''
pass
def buttonbox(self):
'''add standard button box.
override if you do not want the standard buttons
'''
box = Frame(self)
w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)
w.pack(side=LEFT, padx=5, pady=5)
w = Button(box, text="Cancel", width=10, command=self.cancel)
w.pack(side=LEFT, padx=5, pady=5)
self.bind("<Return>", self.ok)
self.bind("<Escape>", self.cancel)
box.pack()
#
# standard button semantics
def ok(self, event=None):
if not self.validate():
self.initial_focus.focus_set() # put focus back
return
self.withdraw()
self.update_idletasks()
try:
self.apply()
finally:
self.cancel()
def cancel(self, event=None):
# put focus back to the parent window
if self.parent is not None:
self.parent.focus_set()
self.destroy()
#
# command hooks
def validate(self):
'''validate the data
This method is called automatically to validate the data before the
dialog is destroyed. By default, it always validates OK.
'''
return 1 # override
def apply(self):
'''process the data
This method is called automatically to process the data, *after*
the dialog is destroyed. By default, it does nothing.
'''
pass # override
# --------------------------------------------------------------------
# convenience dialogues
class _QueryDialog(Dialog):
def __init__(self, title, prompt,
initialvalue=None,
minvalue = None, maxvalue = None,
parent = None):
if not parent:
parent = tkinter._default_root
self.prompt = prompt
self.minvalue = minvalue
self.maxvalue = maxvalue
self.initialvalue = initialvalue
Dialog.__init__(self, parent, title)
def destroy(self):
self.entry = None
Dialog.destroy(self)
def body(self, master):
w = Label(master, text=self.prompt, justify=LEFT)
w.grid(row=0, padx=5, sticky=W)
self.entry = Entry(master, name="entry")
self.entry.grid(row=1, padx=5, sticky=W+E)
if self.initialvalue:
self.entry.insert(0, self.initialvalue)
self.entry.select_range(0, END)
return self.entry
def validate(self):
try:
result = self.getresult()
except ValueError:
messagebox.showwarning(
"Illegal value",
self.errormessage + "\nPlease try again",
parent = self
)
return 0
if self.minvalue is not None and result < self.minvalue:
messagebox.showwarning(
"Too small",
"The allowed minimum value is %s. "
"Please try again." % self.minvalue,
parent = self
)
return 0
if self.maxvalue is not None and result > self.maxvalue:
messagebox.showwarning(
"Too large",
"The allowed maximum value is %s. "
"Please try again." % self.maxvalue,
parent = self
)
return 0
self.result = result
return 1
class _QueryInteger(_QueryDialog):
errormessage = "Not an integer."
def getresult(self):
return int(self.entry.get())
def askinteger(title, prompt, **kw):
'''get an integer from the user
Arguments:
title -- the dialog title
prompt -- the label text
**kw -- see SimpleDialog class
Return value is an integer
'''
d = _QueryInteger(title, prompt, **kw)
return d.result
class _QueryFloat(_QueryDialog):
errormessage = "Not a floating point value."
def getresult(self):
return float(self.entry.get())
def askfloat(title, prompt, **kw):
'''get a float from the user
Arguments:
title -- the dialog title
prompt -- the label text
**kw -- see SimpleDialog class
Return value is a float
'''
d = _QueryFloat(title, prompt, **kw)
return d.result
class _QueryString(_QueryDialog):
def __init__(self, *args, **kw):
if kw.has_key("show"):
self.__show = kw["show"]
del kw["show"]
else:
self.__show = None
_QueryDialog.__init__(self, *args, **kw)
def body(self, master):
entry = _QueryDialog.body(self, master)
if self.__show is not None:
entry.configure(show=self.__show)
return entry
def getresult(self):
return self.entry.get()
def askstring(title, prompt, **kw):
'''get a string from the user
Arguments:
title -- the dialog title
prompt -- the label text
**kw -- see SimpleDialog class
Return value is a string
'''
d = _QueryString(title, prompt, **kw)
return d.result
if __name__ == '__main__':
def test():
root = Tk()
def doit(root=root):
d = SimpleDialog(root,
text="This is a test dialog. "
"Would this have been an actual dialog, "
"the buttons below would have been glowing "
"in soft pink light.\n"
"Do you believe this?",
buttons=["Yes", "No", "Cancel"],
default=0,
cancel=2,
title="Test Dialog")
print d.go()
print askinteger("Spam", "Egg count", initialvalue=12*12)
print askfloat("Spam", "Egg weight\n(in tons)", minvalue=1,
maxvalue=100)
print askstring("Spam", "Egg label")
t = Button(root, text='Test', command=doit)
t.pack()
q = Button(root, text='Quit', command=t.quit)
q.pack()
t.mainloop()
test()