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#!/usr/bin/env python
title = "File Tree (GenericTreeModel)"
description = """
This is a file list demo which makes use of the GenericTreeModel python
implementation of the Gtk.TreeModel interface. This demo shows what methods
need to be overridden to provide a valid TreeModel to a TreeView.
"""
import os
import stat
import time
from collections import OrderedDict
import pygtkcompat
pygtkcompat.enable_gtk('3.0')
import gtk
folderxpm = [
"17 16 7 1",
" c #000000",
". c #808000",
"X c yellow",
"o c #808080",
"O c #c0c0c0",
"+ c white",
"@ c None",
"@@@@@@@@@@@@@@@@@",
"@@@@@@@@@@@@@@@@@",
"@@+XXXX.@@@@@@@@@",
"@+OOOOOO.@@@@@@@@",
"@+OXOXOXOXOXOXO. ",
"@+XOXOXOXOXOXOX. ",
"@+OXOXOXOXOXOXO. ",
"@+XOXOXOXOXOXOX. ",
"@+OXOXOXOXOXOXO. ",
"@+XOXOXOXOXOXOX. ",
"@+OXOXOXOXOXOXO. ",
"@+XOXOXOXOXOXOX. ",
"@+OOOOOOOOOOOOO. ",
"@ ",
"@@@@@@@@@@@@@@@@@",
"@@@@@@@@@@@@@@@@@"
]
folderpb = gtk.gdk.pixbuf_new_from_xpm_data(folderxpm)
filexpm = [
"12 12 3 1",
" c #000000",
". c #ffff04",
"X c #b2c0dc",
"X XXX",
"X ...... XXX",
"X ...... X",
"X . ... X",
"X ........ X",
"X . .... X",
"X ........ X",
"X . .. X",
"X ........ X",
"X . .. X",
"X ........ X",
"X X"
]
filepb = gtk.gdk.pixbuf_new_from_xpm_data(filexpm)
class FileTreeModel(gtk.GenericTreeModel):
__gtype_name__ = 'DemoFileTreeModel'
column_types = (gtk.gdk.Pixbuf, str, int, str, str)
column_names = ['Name', 'Size', 'Mode', 'Last Changed']
def __init__(self, dname=None):
gtk.GenericTreeModel.__init__(self)
if not dname:
self.dirname = os.path.expanduser('~')
else:
self.dirname = os.path.abspath(dname)
self.files = self.build_file_dict(self.dirname)
return
def build_file_dict(self, dirname):
"""
:Returns:
A dictionary containing the files in the given dirname keyed by filename.
If the child filename is a sub-directory, the dict value is a dict.
Otherwise it will be None.
"""
d = OrderedDict()
for fname in os.listdir(dirname):
try:
filestat = os.stat(os.path.join(dirname, fname))
except OSError:
d[fname] = None
else:
d[fname] = OrderedDict() if stat.S_ISDIR(filestat.st_mode) else None
return d
def get_node_from_treepath(self, path):
"""
:Returns:
The node stored at the given tree path in local storage.
"""
# TreePaths are a series of integer indices so just iterate through them
# and index values by each integer since we are using an OrderedDict
if path is None:
path = []
node = self.files
for index in path:
node = list(node.values())[index]
return node
def get_node_from_filepath(self, filepath):
"""
:Returns:
The node stored at the given file path in local storage.
"""
if not filepath:
return self.files
node = self.files
for key in filepath.split(os.path.sep):
node = node[key]
return node
def get_column_names(self):
return self.column_names[:]
#
# GenericTreeModel Implementation
#
def on_get_flags(self):
return 0
def on_get_n_columns(self):
return len(self.column_types)
def on_get_column_type(self, n):
return self.column_types[n]
def on_get_path(self, relpath):
path = []
node = self.files
for key in relpath.split(os.path.sep):
path.append(list(node.keys()).index(key))
node = node[key]
return path
def on_get_value(self, relpath, column):
fname = os.path.join(self.dirname, relpath)
try:
filestat = os.stat(fname)
except OSError:
return None
mode = filestat.st_mode
if column is 0:
if stat.S_ISDIR(mode):
return folderpb
else:
return filepb
elif column is 1:
return os.path.basename(relpath)
elif column is 2:
return filestat.st_size
elif column is 3:
return oct(stat.S_IMODE(mode))
return time.ctime(filestat.st_mtime)
def on_get_iter(self, path):
filepath = ''
value = self.files
for index in path:
filepath = os.path.join(filepath, list(value.keys())[index])
value = list(value.values())[index]
return filepath
def on_iter_next(self, filepath):
parent_path, child_path = os.path.split(filepath)
parent = self.get_node_from_filepath(parent_path)
# Index of filepath within its parents child list
sibling_names = list(parent.keys())
index = sibling_names.index(child_path)
try:
return os.path.join(parent_path, sibling_names[index + 1])
except IndexError:
return None
def on_iter_children(self, filepath):
if filepath:
children = list(self.get_node_from_filepath(filepath).keys())
if children:
return os.path.join(filepath, children[0])
elif self.files:
return list(self.files.keys())[0]
return None
def on_iter_has_child(self, filepath):
return bool(self.get_node_from_filepath(filepath))
def on_iter_n_children(self, filepath):
return len(self.get_node_from_filepath(filepath))
def on_iter_nth_child(self, filepath, n):
try:
child = list(self.get_node_from_filepath(filepath).keys())[n]
if filepath:
return os.path.join(filepath, child)
else:
return child
except IndexError:
return None
def on_iter_parent(self, filepath):
return os.path.dirname(filepath)
def on_ref_node(self, filepath):
value = self.get_node_from_filepath(filepath)
if value is not None:
value.update(self.build_file_dict(os.path.join(self.dirname, filepath)))
def on_unref_node(self, filepath):
pass
class GenericTreeModelExample:
def delete_event(self, widget, event, data=None):
gtk.main_quit()
return False
def __init__(self):
# Create a new window
self.window = gtk.Window(type=gtk.WINDOW_TOPLEVEL)
self.window.set_size_request(300, 200)
self.window.connect("delete_event", self.delete_event)
self.listmodel = FileTreeModel()
# create the TreeView
self.treeview = gtk.TreeView()
# create the TreeViewColumns to display the data
column_names = self.listmodel.get_column_names()
self.tvcolumn = [None] * len(column_names)
cellpb = gtk.CellRendererPixbuf()
self.tvcolumn[0] = gtk.TreeViewColumn(column_names[0],
cellpb, pixbuf=0)
cell = gtk.CellRendererText()
self.tvcolumn[0].pack_start(cell, False)
self.tvcolumn[0].add_attribute(cell, 'text', 1)
self.treeview.append_column(self.tvcolumn[0])
for n in range(1, len(column_names)):
cell = gtk.CellRendererText()
if n == 1:
cell.set_property('xalign', 1.0)
self.tvcolumn[n] = gtk.TreeViewColumn(column_names[n],
cell, text=n + 1)
self.treeview.append_column(self.tvcolumn[n])
self.scrolledwindow = gtk.ScrolledWindow()
self.scrolledwindow.add(self.treeview)
self.window.add(self.scrolledwindow)
self.treeview.set_model(self.listmodel)
self.window.set_title(self.listmodel.dirname)
self.window.show_all()
def main(demoapp=None):
demo = GenericTreeModelExample()
demo
gtk.main()
if __name__ == "__main__":
main()
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