This message just bounced because the the address was not in the mailing list. It may be interesting to some people who are looking for a ctree example. James. -- Email: [EMAIL PROTECTED] WWW: http://www.daa.com.au/~james/ ---------- Forwarded message ---------- >From [EMAIL PROTECTED] Wed Oct 13 07:34:25 1999 Received: from gateway.bioreason.com (mail.bioreason.com [207.108.245.3]) by quoll.daa.com.au (8.9.2/8.9.2) with ESMTP id HAA12379 for <[EMAIL PROTECTED]>; Wed, 13 Oct 1999 07:34:22 +0800 (WST) Received: from bioreason.com (vizzini [192.168.1.3]) by gateway.bioreason.com (8.9.3/8.9.3) with ESMTP id RAA04513 for <[EMAIL PROTECTED]>; Tue, 12 Oct 1999 17:20:53 -0600 Sender: [EMAIL PROTECTED] Message-ID: <[EMAIL PROTECTED]> Date: Tue, 12 Oct 1999 17:20:53 -0600 From: Brian Kelley <[EMAIL PROTECTED]> Organization: Bioreason, Inc. X-Mailer: Mozilla 4.5 [en] (X11; U; SunOS 5.5.1 sun4m) X-Accept-Language: en MIME-Version: 1.0 To: [EMAIL PROTECTED] Subject: Dynamic GtkCTree example Content-Type: multipart/mixed; boundary="------------8EC7787819597EBFC99B599C" This is a multi-part message in MIME format. --------------8EC7787819597EBFC99B599C Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit A lot of people have been looking for a GtkCTree example. Here is a filebrowser that dynamically adds directories as the filesystem is explored. It covers some good material such as how do you make a dynamic tree and if a node sends a signal, how do you reference the node as a lookup into a dictionary. If there are any specific questions, I'll be happy to answer them. To run, just python the file and hope you have pygtk and gtk installed correctly :) It is fairly well commented, enjoy! -- Brian Kelley w 505 995-8188 Bioreason, Inc f 505 995-8186 309 Johnson Av Santa Fe, NM 87501 [EMAIL PROTECTED] --------------8EC7787819597EBFC99B599C Content-Type: text/plain; charset=us-ascii; name="CTreeFileBrowser.py" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="CTreeFileBrowser.py" #!/usr/bin/env python """ This module provides very simple dynamic filebrowser. Its main purpose is to show how to build dynamic trees that don't have to store the full tree all at once. """ # Don't do 'from gtk import *'. This module needs only a few # gtk features, and shouldn't fatten its namespace w. gtk symbols. import gtk, GTK import os class FileBrowser: def __init__(self, directory="."): """Initialize the file browser from a given directory""" self.widget = gtk.GtkHBox() self.tree = gtk.GtkCTree( cols=2, titles=["Directory", "File"] ) self.tree.show() # keep all the unexpanded paths stored in a dictionary self.unexpanded_paths = {} # add the base file to the tree self.__add_file(directory) # make a window self.scrolled_win = gtk.GtkScrolledWindow() self.scrolled_win.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC) # size the window and pack self.scrolled_win.set_usize(200, 200) self.scrolled_win.show() self.widget.pack_start(self.scrolled_win, expand=gtk.TRUE, fill=gtk.TRUE) self.scrolled_win.add(self.tree) # connect the tree-expand signal (this signal is sent when nodes # are expanded in a tree) self.tree.connect("tree-expand", self.tree_expand) def show(self): """show the FileBrowser""" self.widget.show() def hide(self): """hide the FileBrowser""" self.widget.hide() def delete(self): """Delete the file browser""" # well, hide it actually self.widget.hide() def tree_expand(self, tree, node): """catch the tree-expand signal, if the directory has not been updated, read all of the files in the directory and add them to the tree. Remove the directory from the list of unexpanded directories and remove the bookeeping node""" try: # this try block freezes the tree updates until # all information to be displayed is actually inside the # tree. If anything fails inside this block, the finally # clauses will repaint the tree. (This prevents users # from staring at an un-updated window) self.tree.freeze() path = self.tree.node_get_row_data(node) if path in self.unexpanded_paths.keys(): # add the files in the directory expand_node, bookkeeping_node = self.unexpanded_paths[path] for file in os.listdir(path): self.__add_file(os.path.join(path, file), expand_node) # remove the path from the list of unexpanded paths del self.unexpanded_paths[path] # remove the bookeeping node self.tree.remove_node(bookkeeping_node) # resize the columns self.tree.columns_autosize() finally: # no matter what, always thaw the tree self.tree.thaw() def __add_file(self, path, parent=None): """Add a file/directory to the tree as a child of parent. If parent is None, then add to the root of the tree""" assert os.path.exists(path), "Whups, path doesn't exist" file = os.path.split(path)[-1] if os.path.isdir(path): is_leaf = 0 show_path = file show_file = "" else: is_leaf = 1 show_path = os.path.split(path)[0] show_file = file node=self.tree.insert_node(parent, None, text = [show_path, show_file], is_leaf = is_leaf, expanded = gtk.FALSE) if not is_leaf: # add the bookeeping node bookkeep_node = self.tree.insert_node(node, None, text=["book", "node"], is_leaf = gtk.TRUE, expanded = gtk.FALSE) # cache the path self.unexpanded_paths[path] = (node, bookkeep_node) # add the path to the node data so we can look it up self.tree.node_set_row_data(node, path) def main(): """Module mainline (for standalone execution)""" window = gtk.GtkWindow() window.connect("delete_event", gtk.mainquit) t = FileBrowser("/") window.add(t.widget) t.show() window.show() gtk.mainloop() if __name__ == "__main__": # this code isn`t executed when importing main() --------------8EC7787819597EBFC99B599C-- To unsubscribe: echo "unsubscribe" | mail [EMAIL PROTECTED]
