Initial revision
diff --git a/Lib/lib-tk/FileDialog.py b/Lib/lib-tk/FileDialog.py
new file mode 100644
index 0000000..fb2ccd7
--- /dev/null
+++ b/Lib/lib-tk/FileDialog.py
@@ -0,0 +1,211 @@
+"""File selection dialog classes.
+
+Classes:
+
+- FileDialog
+- 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 *
+from Dialog import Dialog
+
+ANCHOR = 'anchor'
+
+import os
+import fnmatch
+
+
+class FileDialog:
+
+ """Standard file selection dialog -- no checks on selected file.
+
+ Usage:
+
+ d = FileDialog(master)
+ file = d.go(directory, pattern, default)
+ if file is None: ...canceled...
+
+ """
+
+ title = "File Selection Dialog"
+
+ def __init__(self, master):
+ self.master = master
+ self.directory = None
+ self.top = Toplevel(master)
+ self.top.title(self.title)
+ self.filter = Entry(self.top)
+ self.filter.pack(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)
+ 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)
+ 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.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)
+
+ def go(self, directory=os.curdir, pattern="*", default=""):
+ self.directory = directory
+ self.set_filter(directory, pattern)
+ self.set_selection(default)
+ self.selection.focus_set()
+ self.filter_command()
+ self.top.grab_set()
+ try:
+ self.master.mainloop()
+ except SystemExit, how:
+ self.top.destroy()
+ return how
+
+ def dirs_double_event(self, event):
+## self.dirs_select_event(event)
+ self.filter_command()
+
+ def dirs_select_event(self, event):
+ dir, pat = self.get_filter()
+ subdir = self.dirs.get(ANCHOR)
+ dir = os.path.normpath(os.path.join(self.directory, subdir))
+ 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):
+ file = self.files.get(ANCHOR)
+ self.set_selection(file)
+
+ def ok_event(self, event):
+ self.ok_command()
+
+ def ok_command(self):
+ raise SystemExit, self.selection.get()
+
+ 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)
+
+ def get_filter(self):
+ filter = self.filter.get()
+ if filter[-1:] == os.sep:
+ filter = filter + "*"
+ return os.path.split(filter)
+
+ def cancel_command(self):
+ raise SystemExit, None
+
+ def set_filter(self, dir, pat):
+ 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.selection.get()
+ if not os.path.isfile(file):
+ self.master.bell()
+ else:
+ raise SystemExit, 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.selection.get()
+ if os.path.exists(file):
+ if os.path.isdir(file):
+ self.master.bell()
+ return
+ d = Dialog(self.master,
+ title="Overwrite Existing File Question",
+ text="Overwrite existing file %s?" % `file`,
+ bitmap='questhead',
+ default=0,
+ strings=("Yes", "Cancel"))
+ if d.num != 0: file = None
+ else:
+ head, tail = os.path.split(file)
+ if not os.path.isdir(head):
+ self.master.bell()
+ return
+ raise SystemExit, file
+
+
+def test():
+ """Simple test program."""
+ root = Tk()
+ root.withdraw()
+ fd = LoadFileDialog(root)
+ loadfile = fd.go()
+ fd = SaveFileDialog(root)
+ savefile = fd.go()
+ print loadfile, savefile
+
+
+if __name__ == '__main__':
+ test()