列見出しをクリックしてツリービューを並べ替える方法

Question

GtkTreeStoreをGtkTreeStoreで使用していますが、ユーザーが列ヘッダーをクリックしたときにこの全体のテーブル（GtkTreeView）を並べ替える必要があります。左の細胞。

これを行う方法？ために

Answer 1

：

1. あなたは本当にfine documentationでもっと見て開始する必要があります。
2. 各列にsort column idを設定してから、GtkTreeSortableインターフェイスを確認してください。 This tutorial sectionも役に立ちます。
3. GtkCellRendererの"xalign"プロパティを0.fに設定します。

Answer 2

お楽しみください！

#! /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()