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Diffstat (limited to 'Lib/tkinter/filedialog.py')
| -rw-r--r-- | Lib/tkinter/filedialog.py | 481 |
1 files changed, 0 insertions, 481 deletions
diff --git a/Lib/tkinter/filedialog.py b/Lib/tkinter/filedialog.py deleted file mode 100644 index 8583cb0..0000000 --- a/Lib/tkinter/filedialog.py +++ /dev/null @@ -1,481 +0,0 @@ -"""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() |