[Python-checkins] r63486 - in python/trunk/Lib/lib-tk: Dialog.py FileDialog.py FixTk.py ScrolledText.py SimpleDialog.py Tix.py Tkconstants.py Tkdnd.py Tkinter.py tkColorChooser.py tkCommonDialog.py tkFileDialog.py tkFont.py tkMessageBox.py tkSimpleDialog.py turtle.py
georg.brandl
python-checkins at python.org
Tue May 20 08:58:22 CEST 2008
Author: georg.brandl
Date: Tue May 20 08:58:21 2008
New Revision: 63486
Log:
Tkinter renaming reversal: move modules back in their place.
Added:
python/trunk/Lib/lib-tk/Dialog.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/dialog.py
python/trunk/Lib/lib-tk/FileDialog.py
python/trunk/Lib/lib-tk/FixTk.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/_fix.py
python/trunk/Lib/lib-tk/ScrolledText.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/scrolledtext.py
python/trunk/Lib/lib-tk/SimpleDialog.py
python/trunk/Lib/lib-tk/Tix.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/tix.py
python/trunk/Lib/lib-tk/Tkconstants.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/constants.py
python/trunk/Lib/lib-tk/Tkdnd.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/dnd.py
python/trunk/Lib/lib-tk/Tkinter.py
- copied, changed from r63480, /python/trunk/Lib/tkinter/__init__.py
python/trunk/Lib/lib-tk/tkColorChooser.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/colorchooser.py
python/trunk/Lib/lib-tk/tkCommonDialog.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/commondialog.py
python/trunk/Lib/lib-tk/tkFileDialog.py
python/trunk/Lib/lib-tk/tkFont.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/font.py
python/trunk/Lib/lib-tk/tkMessageBox.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/messagebox.py
python/trunk/Lib/lib-tk/tkSimpleDialog.py
python/trunk/Lib/lib-tk/turtle.py
- copied unchanged from r63480, /python/trunk/Lib/tkinter/turtle.py
Added: python/trunk/Lib/lib-tk/FileDialog.py
==============================================================================
--- (empty file)
+++ python/trunk/Lib/lib-tk/FileDialog.py Tue May 20 08:58:21 2008
@@ -0,0 +1,274 @@
+"""File selection dialog classes.
+
+Classes:
+
+- FileDialog
+- LoadFileDialog
+- SaveFileDialog
+
+"""
+
+from Tkinter import *
+from Dialog import Dialog
+
+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)
+
+
+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
+
+
+if __name__ == '__main__':
+ test()
Added: python/trunk/Lib/lib-tk/SimpleDialog.py
==============================================================================
--- (empty file)
+++ python/trunk/Lib/lib-tk/SimpleDialog.py Tue May 20 08:58:21 2008
@@ -0,0 +1,112 @@
+"""A simple but flexible modal dialog box."""
+
+
+from Tkinter import *
+
+
+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()
+
+
+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()
+ t = Button(root, text='Test', command=doit)
+ t.pack()
+ q = Button(root, text='Quit', command=t.quit)
+ q.pack()
+ t.mainloop()
+
+ test()
Copied: python/trunk/Lib/lib-tk/Tkinter.py (from r63480, /python/trunk/Lib/tkinter/__init__.py)
==============================================================================
--- /python/trunk/Lib/tkinter/__init__.py (original)
+++ python/trunk/Lib/lib-tk/Tkinter.py Tue May 20 08:58:21 2008
@@ -1195,6 +1195,7 @@
config = configure
def cget(self, key):
"""Return the resource value for a KEY given as string."""
+ print key
return self.tk.call(self._w, 'cget', '-' + key)
__getitem__ = cget
def __setitem__(self, key, value):
Added: python/trunk/Lib/lib-tk/tkFileDialog.py
==============================================================================
--- (empty file)
+++ python/trunk/Lib/lib-tk/tkFileDialog.py Tue May 20 08:58:21 2008
@@ -0,0 +1,215 @@
+#
+# Instant Python
+# $Id: tkFileDialog.py 36560 2004-07-18 06:16:08Z tim_one $
+#
+# tk common file dialogues
+#
+# this module 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.
+#
+# 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
+#
+# - 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
+#
+#
+
+
+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
+ # 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
+
+if __name__ == "__main__":
+ # 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)
Added: python/trunk/Lib/lib-tk/tkSimpleDialog.py
==============================================================================
--- (empty file)
+++ python/trunk/Lib/lib-tk/tkSimpleDialog.py Tue May 20 08:58:21 2008
@@ -0,0 +1,319 @@
+#
+# An Introduction to Tkinter
+# tkSimpleDialog.py
+#
+# Copyright (c) 1997 by Fredrik Lundh
+#
+# fredrik at pythonware.com
+# http://www.pythonware.com
+#
+
+# --------------------------------------------------------------------
+# dialog base class
+
+'''Dialog boxes
+
+This module handles dialog boxes. It contains the following
+public symbols:
+
+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 *
+
+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:
+ import Tkinter
+ 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):
+
+ import tkMessageBox
+
+ try:
+ result = self.getresult()
+ except ValueError:
+ tkMessageBox.showwarning(
+ "Illegal value",
+ self.errormessage + "\nPlease try again",
+ parent = self
+ )
+ return 0
+
+ if self.minvalue is not None and result < self.minvalue:
+ tkMessageBox.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:
+ tkMessageBox.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__":
+
+ root = Tk()
+ root.update()
+
+ 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")
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