Mercurial > cpython-lru_cache-weakref
annotate Lib/lib-tk/FileDialog.py @ 5817:48b94de85bf3 legacy-trunk
Extensive changes by AMK.
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Thu, 17 Jul 1997 16:29:42 +0000 |
| parents | c2eac126e8ff |
| children | 9c37ed8868b9 |
| rev | line source |
|---|---|
| 3031 | 1 """File selection dialog classes. |
| 2 | |
| 3 Classes: | |
| 4 | |
| 5 - FileDialog | |
| 6 - LoadFileDialog | |
| 7 - SaveFileDialog | |
| 8 | |
| 9 """ | |
| 10 | |
| 11 from Tkinter import * | |
| 12 from Dialog import Dialog | |
| 13 | |
| 14 import os | |
| 15 import fnmatch | |
| 16 | |
| 17 | |
| 3643 | 18 dialogstates = {} |
| 19 | |
| 20 | |
| 3031 | 21 class FileDialog: |
| 22 | |
| 23 """Standard file selection dialog -- no checks on selected file. | |
| 24 | |
| 25 Usage: | |
| 26 | |
| 27 d = FileDialog(master) | |
| 3643 | 28 file = d.go(dir_or_file, pattern, default, key) |
| 3031 | 29 if file is None: ...canceled... |
| 3643 | 30 else: ...open file... |
| 31 | |
| 32 All arguments to go() are optional. | |
| 33 | |
| 34 The 'key' argument specifies a key in the global dictionary | |
| 35 'dialogstates', which keeps track of the values for the directory | |
| 36 and pattern arguments, overriding the values passed in (it does | |
| 37 not keep track of the default argument!). If no key is specified, | |
| 38 the dialog keeps no memory of previous state. Note that memory is | |
| 39 kept even when the dialog is cancelled. (All this emulates the | |
| 40 behavior of the Macintosh file selection dialogs.) | |
| 3031 | 41 |
| 42 """ | |
| 43 | |
| 44 title = "File Selection Dialog" | |
| 45 | |
| 3643 | 46 def __init__(self, master, title=None): |
| 47 if title is None: title = self.title | |
| 3031 | 48 self.master = master |
| 49 self.directory = None | |
| 3643 | 50 |
| 3031 | 51 self.top = Toplevel(master) |
| 3643 | 52 self.top.title(title) |
| 53 self.top.iconname(title) | |
| 54 | |
| 55 self.botframe = Frame(self.top) | |
| 56 self.botframe.pack(side=BOTTOM, fill=X) | |
| 57 | |
| 58 self.selection = Entry(self.top) | |
| 59 self.selection.pack(side=BOTTOM, fill=X) | |
| 60 self.selection.bind('<Return>', self.ok_event) | |
| 61 | |
| 3031 | 62 self.filter = Entry(self.top) |
| 3643 | 63 self.filter.pack(side=TOP, fill=X) |
| 3031 | 64 self.filter.bind('<Return>', self.filter_command) |
| 3643 | 65 |
| 3031 | 66 self.midframe = Frame(self.top) |
| 67 self.midframe.pack(expand=YES, fill=BOTH) | |
| 3643 | 68 |
| 69 self.filesbar = Scrollbar(self.midframe) | |
| 70 self.filesbar.pack(side=RIGHT, fill=Y) | |
| 71 self.files = Listbox(self.midframe, exportselection=0, | |
| 72 yscrollcommand=(self.filesbar, 'set')) | |
| 3031 | 73 self.files.pack(side=RIGHT, expand=YES, fill=BOTH) |
|
4893
c2eac126e8ff
Fix the following bug:
Guido van Rossum <guido@python.org>
parents:
3643
diff
changeset
|
74 btags = self.files.bindtags() |
|
c2eac126e8ff
Fix the following bug:
Guido van Rossum <guido@python.org>
parents:
3643
diff
changeset
|
75 self.files.bindtags(btags[1:] + btags[:1]) |
| 3031 | 76 self.files.bind('<ButtonRelease-1>', self.files_select_event) |
| 77 self.files.bind('<Double-ButtonRelease-1>', self.files_double_event) | |
| 3643 | 78 self.filesbar.config(command=(self.files, 'yview')) |
| 79 | |
| 80 self.dirsbar = Scrollbar(self.midframe) | |
| 81 self.dirsbar.pack(side=LEFT, fill=Y) | |
| 82 self.dirs = Listbox(self.midframe, exportselection=0, | |
| 83 yscrollcommand=(self.dirsbar, 'set')) | |
| 84 self.dirs.pack(side=LEFT, expand=YES, fill=BOTH) | |
| 85 self.dirsbar.config(command=(self.dirs, 'yview')) | |
|
4893
c2eac126e8ff
Fix the following bug:
Guido van Rossum <guido@python.org>
parents:
3643
diff
changeset
|
86 btags = self.dirs.bindtags() |
|
c2eac126e8ff
Fix the following bug:
Guido van Rossum <guido@python.org>
parents:
3643
diff
changeset
|
87 self.dirs.bindtags(btags[1:] + btags[:1]) |
| 3643 | 88 self.dirs.bind('<ButtonRelease-1>', self.dirs_select_event) |
| 89 self.dirs.bind('<Double-ButtonRelease-1>', self.dirs_double_event) | |
| 90 | |
| 3031 | 91 self.ok_button = Button(self.botframe, |
| 92 text="OK", | |
| 93 command=self.ok_command) | |
| 94 self.ok_button.pack(side=LEFT) | |
| 95 self.filter_button = Button(self.botframe, | |
| 96 text="Filter", | |
| 97 command=self.filter_command) | |
| 98 self.filter_button.pack(side=LEFT, expand=YES) | |
| 99 self.cancel_button = Button(self.botframe, | |
| 100 text="Cancel", | |
| 101 command=self.cancel_command) | |
| 102 self.cancel_button.pack(side=RIGHT) | |
| 103 | |
| 3643 | 104 self.top.protocol('WM_DELETE_WINDOW', self.cancel_command) |
| 105 # XXX Are the following okay for a general audience? | |
| 106 self.top.bind('<Alt-w>', self.cancel_command) | |
| 107 self.top.bind('<Alt-W>', self.cancel_command) | |
| 108 | |
| 109 def go(self, dir_or_file=os.curdir, pattern="*", default="", key=None): | |
| 110 if key and dialogstates.has_key(key): | |
| 111 self.directory, pattern = dialogstates[key] | |
| 112 else: | |
| 113 dir_or_file = os.path.expanduser(dir_or_file) | |
| 114 if os.path.isdir(dir_or_file): | |
| 115 self.directory = dir_or_file | |
| 116 else: | |
| 117 self.directory, default = os.path.split(dir_or_file) | |
| 118 self.set_filter(self.directory, pattern) | |
| 119 self.set_selection(default) | |
|
3068
31c52a0a372c
Filter button should set selection's directory, too
Guido van Rossum <guido@python.org>
parents:
3031
diff
changeset
|
120 self.filter_command() |
| 3031 | 121 self.selection.focus_set() |
| 122 self.top.grab_set() | |
| 3643 | 123 self.how = None |
| 124 self.master.mainloop() # Exited by self.quit(how) | |
| 125 if key: dialogstates[key] = self.get_filter() | |
| 126 self.top.destroy() | |
| 127 return self.how | |
| 128 | |
| 129 def quit(self, how=None): | |
| 130 self.how = how | |
| 131 self.master.quit() # Exit mainloop() | |
| 3031 | 132 |
| 133 def dirs_double_event(self, event): | |
| 134 self.filter_command() | |
| 135 | |
| 136 def dirs_select_event(self, event): | |
| 137 dir, pat = self.get_filter() | |
|
4893
c2eac126e8ff
Fix the following bug:
Guido van Rossum <guido@python.org>
parents:
3643
diff
changeset
|
138 subdir = self.dirs.get('active') |
| 3031 | 139 dir = os.path.normpath(os.path.join(self.directory, subdir)) |
| 140 self.set_filter(dir, pat) | |
| 141 | |
| 142 def files_double_event(self, event): | |
| 143 self.ok_command() | |
| 144 | |
| 145 def files_select_event(self, event): | |
|
4893
c2eac126e8ff
Fix the following bug:
Guido van Rossum <guido@python.org>
parents:
3643
diff
changeset
|
146 file = self.files.get('active') |
| 3031 | 147 self.set_selection(file) |
| 148 | |
| 149 def ok_event(self, event): | |
| 150 self.ok_command() | |
| 151 | |
| 152 def ok_command(self): | |
| 3643 | 153 self.quit(self.get_selection()) |
| 3031 | 154 |
| 155 def filter_command(self, event=None): | |
| 156 dir, pat = self.get_filter() | |
| 157 try: | |
| 158 names = os.listdir(dir) | |
| 159 except os.error: | |
| 160 self.master.bell() | |
| 161 return | |
| 162 self.directory = dir | |
| 163 self.set_filter(dir, pat) | |
| 164 names.sort() | |
| 165 subdirs = [os.pardir] | |
| 166 matchingfiles = [] | |
| 167 for name in names: | |
| 168 fullname = os.path.join(dir, name) | |
| 169 if os.path.isdir(fullname): | |
| 170 subdirs.append(name) | |
| 171 elif fnmatch.fnmatch(name, pat): | |
| 172 matchingfiles.append(name) | |
| 173 self.dirs.delete(0, END) | |
| 174 for name in subdirs: | |
| 175 self.dirs.insert(END, name) | |
| 176 self.files.delete(0, END) | |
| 177 for name in matchingfiles: | |
| 178 self.files.insert(END, name) | |
| 3643 | 179 head, tail = os.path.split(self.get_selection()) |
|
3068
31c52a0a372c
Filter button should set selection's directory, too
Guido van Rossum <guido@python.org>
parents:
3031
diff
changeset
|
180 if tail == os.curdir: tail = '' |
|
31c52a0a372c
Filter button should set selection's directory, too
Guido van Rossum <guido@python.org>
parents:
3031
diff
changeset
|
181 self.set_selection(tail) |
| 3031 | 182 |
| 183 def get_filter(self): | |
| 184 filter = self.filter.get() | |
| 3643 | 185 filter = os.path.expanduser(filter) |
| 186 if filter[-1:] == os.sep or os.path.isdir(filter): | |
| 187 filter = os.path.join(filter, "*") | |
| 3031 | 188 return os.path.split(filter) |
| 189 | |
| 3643 | 190 def get_selection(self): |
| 191 file = self.selection.get() | |
| 192 file = os.path.expanduser(file) | |
| 193 return file | |
| 194 | |
| 195 def cancel_command(self, event=None): | |
| 196 self.quit() | |
| 3031 | 197 |
| 198 def set_filter(self, dir, pat): | |
| 3643 | 199 if not os.path.isabs(dir): |
| 200 try: | |
| 201 pwd = os.getcwd() | |
| 202 except os.error: | |
| 203 pwd = None | |
| 204 if pwd: | |
| 205 dir = os.path.join(pwd, dir) | |
| 206 dir = os.path.normpath(dir) | |
| 3031 | 207 self.filter.delete(0, END) |
| 208 self.filter.insert(END, os.path.join(dir or os.curdir, pat or "*")) | |
| 209 | |
| 210 def set_selection(self, file): | |
| 211 self.selection.delete(0, END) | |
| 212 self.selection.insert(END, os.path.join(self.directory, file)) | |
| 213 | |
| 214 | |
| 215 class LoadFileDialog(FileDialog): | |
| 216 | |
| 217 """File selection dialog which checks that the file exists.""" | |
| 218 | |
| 219 title = "Load File Selection Dialog" | |
| 220 | |
| 221 def ok_command(self): | |
| 3643 | 222 file = self.get_selection() |
| 3031 | 223 if not os.path.isfile(file): |
| 224 self.master.bell() | |
| 225 else: | |
| 3643 | 226 self.quit(file) |
| 3031 | 227 |
| 228 | |
| 229 class SaveFileDialog(FileDialog): | |
| 230 | |
| 231 """File selection dialog which checks that the file may be created.""" | |
| 232 | |
| 233 title = "Save File Selection Dialog" | |
| 234 | |
| 235 def ok_command(self): | |
| 3643 | 236 file = self.get_selection() |
| 3031 | 237 if os.path.exists(file): |
| 238 if os.path.isdir(file): | |
| 239 self.master.bell() | |
| 240 return | |
| 3643 | 241 d = Dialog(self.top, |
| 3031 | 242 title="Overwrite Existing File Question", |
| 243 text="Overwrite existing file %s?" % `file`, | |
| 244 bitmap='questhead', | |
| 3643 | 245 default=1, |
| 3031 | 246 strings=("Yes", "Cancel")) |
| 3643 | 247 if d.num != 0: |
| 248 return | |
| 3031 | 249 else: |
| 250 head, tail = os.path.split(file) | |
| 251 if not os.path.isdir(head): | |
| 252 self.master.bell() | |
| 253 return | |
| 3643 | 254 self.quit(file) |
| 3031 | 255 |
| 256 | |
| 257 def test(): | |
| 258 """Simple test program.""" | |
| 259 root = Tk() | |
| 260 root.withdraw() | |
| 261 fd = LoadFileDialog(root) | |
| 3643 | 262 loadfile = fd.go(key="test") |
| 3031 | 263 fd = SaveFileDialog(root) |
| 3643 | 264 savefile = fd.go(key="test") |
| 3031 | 265 print loadfile, savefile |
| 266 | |
| 267 | |
| 268 if __name__ == '__main__': | |
| 269 test() |