examples: add some Qt examples and build infrastructure

.gitignore

@@ -123,6 +123,7 @@ examples/C/glib/get-active-connections-dbus-glib
 examples/C/glib/get-ap-info-libnm-glib
 examples/C/glib/list-connections-dbus-glib
 examples/C/glib/list-connections-libnm-glib
+examples/C/glib/add-connection-wired
 
 callouts/nm-dhcp-client.action
 callouts/nm-avahi-autoipd.action

configure.ac

@@ -264,6 +264,21 @@ AC_SUBST(GIO_LIBS)
 
 GOBJECT_INTROSPECTION_CHECK([0.9.6])
 
+# Qt4
+PKG_CHECK_MODULES(QT, [Qt >= 4 QtCore QtDBus], [have_qt=yes],[have_qt=no])
+AC_ARG_ENABLE(qt, AS_HELP_STRING([--enable-qt], [enable Qt examples]),
+                     [enable_qt=${enableval}], [enable_qt=${have_qt}])
+if (test "${enable_qt}" = "yes"); then
+	if test x"$have_qt" = x"no"; then
+		AC_MSG_ERROR(Qt development headers are required)
+	fi
+	AC_PROG_CXX
+	AC_SUBST(QT_CFLAGS)
+	AC_SUBST(QT_LIBS)
+fi
+AM_CONDITIONAL(WITH_QT, test "${enable_qt}" = "yes")
+
+
 AC_ARG_WITH(udev-dir, AS_HELP_STRING([--with-udev-dir=DIR], [where the udev base directory is]))
 if test -n "$with_udev_dir" ; then
 	UDEV_BASE_DIR="$with_udev_dir"
@@ -658,6 +673,7 @@ examples/Makefile
 examples/python/Makefile
 examples/C/Makefile
 examples/C/glib/Makefile
+examples/C/qt/Makefile
 ])
 AC_OUTPUT
 

examples/C/Makefile.am

 SUBDIRS= glib
 
+if WITH_QT
+SUBDIRS += qt
+endif

examples/C/qt/Makefile.am

+INCLUDES = -I${top_srcdir}/include
+
+AM_CPPFLAGS = \
+	$(DBUS_CFLAGS) \
+	$(QT_CFLAGS)
+
+noinst_PROGRAMS = \
+	add-connection-wired
+
+add_connection_wired_SOURCES = add-connection-wired.cpp
+add_connection_wired_LDADD = \
+	$(DBUS_LIBS) \
+	$(QT_LIBS)
+
+EXTRA_DIST = \
+	add-connection-wired.cpp
+

examples/C/qt/add-connection-wired.cpp

+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/*
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * (C) Copyright 2011 Eckhart Wörner
+ */
+
+/*
+ * The example shows how to call AddConnection() D-Bus method to add
+ * a connection to settings service using Qt and D-Bus.
+ */
+
+#include <QtCore/QUuid>
+#include <QtDBus/QDBusArgument>
+#include <QtDBus/QDBusConnection>
+#include <QtDBus/QDBusInterface>
+#include <QtDBus/QDBusMetaType>
+#include <QtDBus/QDBusReply>
+
+#include <QtCore/QDebug>
+
+#include "NetworkManager.h"
+
+typedef QMap<QString, QMap<QString, QVariant> > Connection;
+Q_DECLARE_METATYPE(Connection)
+
+
+void addConnection(QDBusInterface& interface, const QString& connectionName) {
+    qDBusRegisterMetaType<Connection>();
+
+    // Create a new connection object
+    Connection connection;
+
+    // Build up the 'connection' Setting
+    connection["connection"]["uuid"] = QUuid::createUuid().toString().remove('{').remove('}');
+    connection["connection"]["id"] = connectionName;
+    connection["connection"]["type"] = "802-3-ethernet";
+
+    // Build up the '802-3-ethernet' Setting
+    connection["802-3-ethernet"];
+
+    // Build up the 'ipv4' Setting
+    connection["ipv4"]["method"] = "auto";
+
+    // Call AddConnection
+    QDBusReply<QDBusObjectPath> result = interface.call("AddConnection", QVariant::fromValue(connection));
+    if (!result.isValid()) {
+        qDebug() << QString("Error adding connection: %1 %2").arg(result.error().name()).arg(result.error().message());
+    } else {
+        qDebug() << QString("Added: %1").arg(result.value().path());
+    }
+}
+
+int main() {
+    // Create a D-Bus proxy; NM_DBUS_* defined in NetworkManager.h
+    QDBusInterface interface(
+        NM_DBUS_SERVICE,
+        NM_DBUS_PATH_SETTINGS,
+        NM_DBUS_IFACE_SETTINGS,
+        QDBusConnection::systemBus());
+
+    addConnection(interface, "__Test connection__");
+}