diff options
Diffstat (limited to 'Lib/lib-tk')
| -rw-r--r-- | Lib/lib-tk/FileDialog.py | 149 |
1 files changed, 101 insertions, 48 deletions
diff --git a/Lib/lib-tk/FileDialog.py b/Lib/lib-tk/FileDialog.py index 4bb74b7..76271af 100644 --- a/Lib/lib-tk/FileDialog.py +++ b/Lib/lib-tk/FileDialog.py @@ -6,13 +6,6 @@ Classes: - LoadFileDialog - SaveFileDialog -XXX Bugs: - -- The fields are not labeled -- Default doesn't have absolute pathname -- Each FileDialog instance can be used only once -- There is no easy way for an application to add widgets of its own - """ from Tkinter import * @@ -24,6 +17,9 @@ import os import fnmatch +dialogstates = {} + + class FileDialog: """Standard file selection dialog -- no checks on selected file. @@ -31,36 +27,65 @@ class FileDialog: Usage: d = FileDialog(master) - file = d.go(directory, pattern, default) + file = d.go(dir_or_file, pattern, default, key) if file 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 cancelled. (All this emulates the + behavior of the Macintosh file selection dialogs.) """ title = "File Selection Dialog" - def __init__(self, master): + 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(self.title) + 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(fill=X) + 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.dirs = Listbox(self.midframe, exportselection=0) - self.dirs.pack(side=LEFT, expand=YES, fill=BOTH) - self.dirs.bind('<ButtonRelease-1>', self.dirs_select_event) - self.dirs.bind('<Double-ButtonRelease-1>', self.dirs_double_event) - self.files = Listbox(self.midframe, exportselection=0) + + 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) self.files.bind('<ButtonRelease-1>', self.files_select_event) self.files.bind('<Double-ButtonRelease-1>', self.files_double_event) - self.selection = Entry(self.top) - self.selection.pack(fill=X) - self.selection.bind('<Return>', self.ok_event) - self.botframe = Frame(self.top) - self.botframe.pack(fill=X) + 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')) + 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) @@ -74,21 +99,36 @@ class FileDialog: command=self.cancel_command) self.cancel_button.pack(side=RIGHT) - def go(self, directory=os.curdir, pattern="*", default=""): - self.directory = directory - self.set_filter(directory, pattern) - self.filter_command() + 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.grab_set() - try: - self.master.mainloop() - except SystemExit, how: - self.top.destroy() - return how + self.how = None + self.master.mainloop() # Exited by self.quit(how) + if key: dialogstates[key] = self.get_filter() + 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.dirs_select_event(event) self.filter_command() def dirs_select_event(self, event): @@ -98,8 +138,6 @@ class FileDialog: self.set_filter(dir, pat) def files_double_event(self, event): -## self.files_select_event(event) -## self.master.update_idletasks() self.ok_command() def files_select_event(self, event): @@ -110,7 +148,7 @@ class FileDialog: self.ok_command() def ok_command(self): - raise SystemExit, self.selection.get() + self.quit(self.get_selection()) def filter_command(self, event=None): dir, pat = self.get_filter() @@ -136,20 +174,34 @@ class FileDialog: self.files.delete(0, END) for name in matchingfiles: self.files.insert(END, name) - head, tail = os.path.split(self.selection.get()) + 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() - if filter[-1:] == os.sep: - filter = filter + "*" + 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 cancel_command(self): - raise SystemExit, None + 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 "*")) @@ -165,11 +217,11 @@ class LoadFileDialog(FileDialog): title = "Load File Selection Dialog" def ok_command(self): - file = self.selection.get() + file = self.get_selection() if not os.path.isfile(file): self.master.bell() else: - raise SystemExit, file + self.quit(file) class SaveFileDialog(FileDialog): @@ -179,24 +231,25 @@ class SaveFileDialog(FileDialog): title = "Save File Selection Dialog" def ok_command(self): - file = self.selection.get() + file = self.get_selection() if os.path.exists(file): if os.path.isdir(file): self.master.bell() return - d = Dialog(self.master, + d = Dialog(self.top, title="Overwrite Existing File Question", text="Overwrite existing file %s?" % `file`, bitmap='questhead', - default=0, + default=1, strings=("Yes", "Cancel")) - if d.num != 0: file = None + if d.num != 0: + return else: head, tail = os.path.split(file) if not os.path.isdir(head): self.master.bell() return - raise SystemExit, file + self.quit(file) def test(): @@ -204,9 +257,9 @@ def test(): root = Tk() root.withdraw() fd = LoadFileDialog(root) - loadfile = fd.go() + loadfile = fd.go(key="test") fd = SaveFileDialog(root) - savefile = fd.go() + savefile = fd.go(key="test") print loadfile, savefile |