如何在pygtk中使特定孩子的列可編輯

Question

在下面的圖片中，您可以看到3個父子窗口。 實際上我編寫了一個代碼，該代碼將根據父母顯示所有孩子。 那顯示正確，但我希望用戶名和密碼列僅可用於數據庫父級（如第三個窗口）可編輯。 其他應該不可編輯。

就我而言，父母的所有孩子都是可編輯的。

這是我的代碼

#!/usr/bin/env python

import pygtk
pygtk.require('2.0')
import gtk, gobject
import os
import cairo, gio, pango, pangocairo, atk

class BasicTreeViewExample:

    # close the window and quit
    def delete_event(self, widget, event, data=None):
        gtk.main_quit()
        return False

    def col1_toggled_cb( self, cell, path, model ):
        model[path][1] = not model[path][1]

    def on_cell_edited(self, cell, path_string, new_text, model):
        print "hi"
        #cell.set_property('editable', False)
        iter = model.get_iter_from_string(new_text)
        path = model.get_path(iter)[0]
        column = cell.get_data("username")

    def __init__(self):
        # Create a new window
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)

        self.window.set_title("Basic TreeView Example")

        self.window.set_size_request(400, 400)

        self.window.connect("delete_event", self.delete_event)
        self.treestore = gtk.TreeStore(gobject.TYPE_STRING, gobject.TYPE_BOOLEAN,gobject.TYPE_BOOLEAN, gobject.TYPE_STRING, gobject.TYPE_STRING)
        for parent in range(2):
            piter = self.treestore.append(None, ['Computer %i' % parent, False,False, '', ''])
            pit = self.treestore.append(piter, ['Drive', False,False, '', ''])
            pith = self.treestore.append(piter, ['Database', False,False, '', ''])
            for child in range(2):
                self.treestore.append(pit, ['child', True,True, '', ''])
            for child in range(2):
                self.treestore.append(pith, ['child', True,True, 'user', 'psw'])
        self.treeview = gtk.TreeView(self.treestore)

        self.cell = gtk.CellRendererText()
        self.tvcolumn = gtk.TreeViewColumn("Computer Name", self.cell, text=0)
        self.cell.set_property( 'editable', False )

        self.cell0 = gtk.CellRendererToggle()
        self.tvcolumn0 = gtk.TreeViewColumn("Select Drive", self.cell0 , active=1, visible=2)
        self.cell0.set_property('activatable', True)
        self.cell0.connect( 'toggled', self.col1_toggled_cb, self.treestore )

        self.cell1 = gtk.CellRendererText()
        self.tvcolumn1 = gtk.TreeViewColumn("username", self.cell1, text=3, visible=2)
        self.cell1.set_property( 'editable', True )
        self.cell1.connect("editing-started", self.on_cell_edited, self.treestore)

        self.cell2 = gtk.CellRendererText()
        self.tvcolumn2 = gtk.TreeViewColumn("password", self.cell2, text=4, visible=2)
        self.cell2.set_property( 'editable', True )
        self.treeview.append_column(self.tvcolumn)
        self.treeview.append_column(self.tvcolumn0)
        self.treeview.append_column(self.tvcolumn1)
        self.treeview.append_column(self.tvcolumn2)
        self.treeview.set_reorderable(True)
        self.window.add(self.treeview)
        self.window.show_all()

def main():
    gtk.main()

if __name__ == "__main__":
    tvexample = BasicTreeViewExample()
    main()

任何人都可以幫助我解決這個問題。

謝謝...

Answer 1

此處的答案與上一個問題的答案類似：您需要在樹存儲中添加額外的列，以指定您關注的屬性-在這種情況下，該行的用戶名/密碼單元格的可編輯性並將其連接起來存儲列和顯示和編輯用戶名和密碼的樹形視圖列。

提供的代碼只是將editable屬性設置為true，這意味着該屬性在任何地方都是可編輯的。

有一些教程詳細解釋了GTK樹視圖。 這是問題代碼的一個版本，經過修改后可以滿足您的要求（據我了解）。

#!/usr/bin/env python

import pygtk
pygtk.require('2.0')
import gtk, gobject
import os
import cairo, gio, pango, pangocairo, atk

class BasicTreeViewExample:

    # close the window and quit
    def delete_event(self, widget, event, data=None):
        gtk.main_quit()
        return False

    def col1_toggled_cb( self, cell, path, model ):
        model[path][1] = not model[path][1]

    def on_cell_edited(self, cell, path_string, new_text, model):
        print "hi"
        #cell.set_property('editable', False)
        iter = model.get_iter_from_string(new_text)
        path = model.get_path(iter)[0]
        column = cell.get_data("username")

    def __init__(self):
        # Create a new window
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)

        self.window.set_title("Basic TreeView Example")

        self.window.set_size_request(400, 400)

        self.window.connect("delete_event", self.delete_event)
        self.treestore = gtk.TreeStore(gobject.TYPE_STRING, gobject.TYPE_BOOLEAN,gobject.TYPE_BOOLEAN, gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_BOOLEAN)
        for parent in range(2):
            piter = self.treestore.append(None, ['Computer %i' % parent, False,False, '', '', False])
            pit = self.treestore.append(piter, ['Drive', False,False, '', '', False])
            pith = self.treestore.append(piter, ['Database', False,False, 'user', 'psw', True])
            for child in range(2):
                self.treestore.append(pit, ['child', True,True, '', '', False])
            for child in range(2):
                self.treestore.append(pith, ['child', True,True, '', '', False])
        self.treeview = gtk.TreeView(self.treestore)

        self.cell = gtk.CellRendererText()
        self.tvcolumn = gtk.TreeViewColumn("Computer Name", self.cell, text=0)
        self.cell.set_property( 'editable', False )

        self.cell0 = gtk.CellRendererToggle()
        self.tvcolumn0 = gtk.TreeViewColumn("Select Drive", self.cell0 , active=1, visible=2)
        self.cell0.set_property('activatable', True)
        self.cell0.connect( 'toggled', self.col1_toggled_cb, self.treestore )

        self.cell1 = gtk.CellRendererText()
        self.tvcolumn1 = gtk.TreeViewColumn("username", self.cell1, text=3, visible=5, editable=5)
        self.cell1.connect("editing-started", self.on_cell_edited, self.treestore)

        self.cell2 = gtk.CellRendererText()
        self.tvcolumn2 = gtk.TreeViewColumn("password", self.cell2, text=4, visible=5, editable=5)
        self.treeview.append_column(self.tvcolumn)
        self.treeview.append_column(self.tvcolumn0)
        self.treeview.append_column(self.tvcolumn1)
        self.treeview.append_column(self.tvcolumn2)
        self.treeview.set_reorderable(True)
        self.window.add(self.treeview)
        self.window.show_all()

def main():
    gtk.main()

if __name__ == "__main__":
    tvexample = BasicTreeViewExample()
    main()