Cómo ordenar la vista de árbol al hacer clic en el encabezado de columna

Question

Estoy teniendo un GtkTreeView con GtkTreeStore en él y quiero ordenar esta tabla completa (GtkTreeView) cuando el usuario hace clic en cualquiera de los encabezados de columna también quiero alinear texto en el celdas al lado izquierdo.

¿Cómo hacer esto?

Answer 1

En orden:

1. que realmente necesita para empezar a buscar más en el fine documentation.
2. Asegúrese de establecer un sort column id en cada una de sus columnas, luego observe la interfaz GtkTreeSortable. This tutorial section es útil también.
3. Establezca la propiedad "xalign" de su GtkCellRenderer en 0.f.

Answer 2

¡Disfrútalo!

#! /usr/bin/python 

########################################################### 
# 
# Basic Gtk.TreeView Example with two sortable columns 
# 
########################################################### 


# use the new PyGObject binding 
from gi.repository import Gtk 
import os 
import getpass # this is only to automatically print your home folder. 

class MyWindow(Gtk.Window): 

    def __init__(self): 

     Gtk.Window.__init__(self, title='My Window Title') 
     self.connect('delete-event', Gtk.main_quit)   

     # Gtk.ListStore will hold data for the TreeView 
     # Only the first two columns will be displayed 
     # The third one is for sorting file sizes as numbers 
     store = Gtk.ListStore(str, str, long) 
     # Get the data - see below 
     self.populate_store(store) 

     treeview = Gtk.TreeView(model=store) 

     # The first TreeView column displays the data from 
     # the first ListStore column (text=0), which contains 
     # file names 
     renderer_1 = Gtk.CellRendererText()   
     column_1 = Gtk.TreeViewColumn('File Name', renderer_1, text=0) 
     # Calling set_sort_column_id makes the treeViewColumn sortable 
     # by clicking on its header. The column is sorted by 
     # the ListStore column index passed to it 
     # (in this case 0 - the first ListStore column) 
     column_1.set_sort_column_id(0)   
     treeview.append_column(column_1) 

     # xalign=1 right-aligns the file sizes in the second column 
     renderer_2 = Gtk.CellRendererText(xalign=1) 
     # text=1 pulls the data from the second ListStore column 
     # which contains filesizes in bytes formatted as strings 
     # with thousand separators 
     column_2 = Gtk.TreeViewColumn('Size in bytes', renderer_2, text=1) 
     # Mak the Treeview column sortable by the third ListStore column 
     # which contains the actual file sizes 
     column_2.set_sort_column_id(1) 
     treeview.append_column(column_2) 

     # Use ScrolledWindow to make the TreeView scrollable 
     # Otherwise the TreeView would expand to show all items 
     # Only allow vertical scrollbar 
     scrolled_window = Gtk.ScrolledWindow() 
     scrolled_window.set_policy(
      Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC) 
     scrolled_window.add(treeview) 
     scrolled_window.set_min_content_height(200) 

     self.add(scrolled_window) 
     self.show_all() 

    def populate_store(self, store): 

     directory = '/home/'+getpass.getuser() 
     for filename in os.listdir(directory): 
      size = os.path.getsize(os.path.join(directory, filename)) 
      # the second element is displayed in the second TreeView column 
      # but that column is sorted by the third element 
      # so the file sizes are sorted as numbers, not as strings 
      store.append([filename, '{0:,}'.format(size), size])  

# The main part: 
win = MyWindow() 
Gtk.main()