Hi, Am Dienstag, den 05.01.2010, 05:44 -0800 schrieb Adam Chyla [PL]: > It should works. > > Try this: http://chyla.site90.net/gtk_foobar-0.1.tar.gz
You were simply not testing whether the position after the selected item is actually valid. The corrected code is attached. Note that I used operator bool() instead of comparing against the end() iterator, but I did so only for convenience. Either way works. Cheers, --Daniel
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */ /* * main.cc * Copyright (C) Adam Chyła 2010 <[email protected]> * * gtk-foobar is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * gtk-foobar is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "Main.h" MainClass::MainClass() { set_title("Hi all!"); set_default_size(400, 400); add(MainVBox); MainVBox.pack_start(MoveDown, Gtk::PACK_SHRINK); MainVBox.pack_start(TreeViewExample); MoveDown.set_label("MoveDown"); MoveDown.signal_clicked().connect(sigc::mem_fun(*this, &MainClass::MoveDownFun)); ListStore = Gtk::ListStore::create(Column); TreeViewExample.set_model(ListStore); row = *(ListStore->append()); row[Column.first] = "asdf"; row = *(ListStore->append()); row[Column.first] = "sdcsdcsdcsdcsd"; TreeViewExample.append_column("First", Column.first); show_all_children(); } MainClass::~MainClass() { } void MainClass::MoveDownFun() { Glib::RefPtr<Gtk::TreeSelection> selection = TreeViewExample.get_selection(); Gtk::TreeModel::iterator iter = selection->get_selected(); if (iter) { Gtk::TreeModel::iterator next = iter; if (++next) ListStore->iter_swap(iter, next); } }
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