Initial revision

diff --git a/Lib/lib-tk/FileDialog.py b/Lib/lib-tk/FileDialog.py
new file mode 100644 (file)
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()

diff --git a/Lib/tkinter/FileDialog.py b/Lib/tkinter/FileDialog.py
new file mode 100755 (executable)
index 0000000..fb2ccd7
--- /dev/null
+++ b/Lib/tkinter/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()