mirror of
https://github.com/python/cpython.git
synced 2025-10-31 21:51:50 +00:00
Major overhaul:
- Support ~[user] expansion. - Remember last directory and pattern; optional 'key' argument specifies different memory locations. - Absolutify pathnames if possible. - WM close event cancels the dialog. - First arg to go() can be either a directory or a file (renamed to dir_of_file); defaults to current directory.
This commit is contained in:
Guido van Rossum
parent
51b708ab61
commit
0978f993e3
2 changed files with 202 additions and 96 deletions
|
|
@ -6,13 +6,6 @@
|
|||
- 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 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 @@ def __init__(self, master):
|
|||
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 @@ def dirs_select_event(self, event):
|
|||
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 @@ def ok_event(self, event):
|
|||
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 @@ def filter_command(self, event=None):
|
|||
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
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue