netlist: Revive portgroup UI

I removed Portgroup UI in 4c3c53f773 release 3.0.0, but there's been
a steady stream of requests to bring it back. It seems it's commonly
used with some certain openvswitch config.

Maint burden isn't too bad. Let's bring it back

Fixes: https://github.com/virt-manager/virt-manager/issues/169

Signed-off-by: Cole Robinson <crobinso@redhat.com>

ui/netlist.ui

@@ -1,51 +1,52 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.36.0 -->
+<!-- Generated with glade 3.38.2 -->
 <interface>
   <requires lib="gtk+" version="3.22"/>
+  <!-- n-columns=2 n-rows=5 -->
   <object class="GtkGrid" id="net-source-box">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
-    <property name="row_spacing">6</property>
-    <property name="column_spacing">6</property>
+    <property name="can-focus">False</property>
+    <property name="row-spacing">6</property>
+    <property name="column-spacing">6</property>
     <child>
       <object class="GtkLabel" id="label1">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
+        <property name="can-focus">False</property>
         <property name="halign">start</property>
         <property name="hexpand">False</property>
         <property name="label" translatable="yes">De_vice name:</property>
-        <property name="use_underline">True</property>
-        <property name="mnemonic_widget">net-manual-source</property>
+        <property name="use-underline">True</property>
+        <property name="mnemonic-widget">net-manual-source</property>
       </object>
       <packing>
-        <property name="left_attach">0</property>
-        <property name="top_attach">2</property>
+        <property name="left-attach">0</property>
+        <property name="top-attach">2</property>
       </packing>
     </child>
     <child>
       <object class="GtkEntry" id="net-manual-source">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
+        <property name="can-focus">True</property>
         <property name="halign">start</property>
         <property name="hexpand">True</property>
         <signal name="changed" handler="on_net_bridge_name_changed" swapped="no"/>
       </object>
       <packing>
-        <property name="left_attach">1</property>
-        <property name="top_attach">2</property>
+        <property name="left-attach">1</property>
+        <property name="top-attach">2</property>
       </packing>
     </child>
     <child>
       <object class="GtkBox" id="net-macvtap-warn-box">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
+        <property name="can-focus">False</property>
         <property name="halign">start</property>
         <property name="hexpand">False</property>
         <property name="spacing">6</property>
         <child>
           <object class="GtkImage" id="image2">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <property name="stock">gtk-dialog-warning</property>
           </object>
           <packing>
@@ -57,12 +58,12 @@
         <child>
           <object class="GtkLabel" id="label19">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <property name="halign">start</property>
             <property name="label" translatable="yes">&lt;small&gt;In most configurations, macvtap does not work for host to guest network communication.&lt;/small&gt;</property>
-            <property name="use_markup">True</property>
+            <property name="use-markup">True</property>
             <property name="wrap">True</property>
-            <property name="max_width_chars">35</property>
+            <property name="max-width-chars">35</property>
           </object>
           <packing>
             <property name="expand">False</property>
@@ -72,15 +73,15 @@
         </child>
       </object>
       <packing>
-        <property name="left_attach">0</property>
-        <property name="top_attach">3</property>
+        <property name="left-attach">0</property>
+        <property name="top-attach">4</property>
         <property name="width">2</property>
       </packing>
     </child>
     <child>
       <object class="GtkComboBox" id="net-source">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
+        <property name="can-focus">False</property>
         <property name="halign">start</property>
         <property name="hexpand">False</property>
         <signal name="changed" handler="on_net_source_changed" swapped="no"/>
@@ -91,20 +92,20 @@
         </child>
       </object>
       <packing>
-        <property name="left_attach">0</property>
-        <property name="top_attach">1</property>
+        <property name="left-attach">0</property>
+        <property name="top-attach">1</property>
         <property name="width">2</property>
       </packing>
     </child>
     <child>
       <object class="GtkBox" id="net-default-warn-box">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
+        <property name="can-focus">False</property>
         <property name="spacing">6</property>
         <child>
           <object class="GtkImage" id="image1">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <property name="stock">gtk-dialog-warning</property>
           </object>
           <packing>
@@ -116,12 +117,12 @@
         <child>
           <object class="GtkLabel" id="label2">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <property name="halign">start</property>
             <property name="label" translatable="yes">&lt;small&gt;Failed to find a suitable default network.&lt;/small&gt;</property>
-            <property name="use_markup">True</property>
+            <property name="use-markup">True</property>
             <property name="wrap">True</property>
-            <property name="max_width_chars">35</property>
+            <property name="max-width-chars">35</property>
           </object>
           <packing>
             <property name="expand">False</property>
@@ -131,21 +132,55 @@
         </child>
       </object>
       <packing>
-        <property name="left_attach">0</property>
-        <property name="top_attach">0</property>
+        <property name="left-attach">0</property>
+        <property name="top-attach">0</property>
         <property name="width">2</property>
       </packing>
     </child>
+    <child>
+      <object class="GtkLabel" id="label3">
+        <property name="visible">True</property>
+        <property name="can-focus">False</property>
+        <property name="halign">start</property>
+        <property name="hexpand">False</property>
+        <property name="label" translatable="yes">_Portgroup:</property>
+        <property name="use-underline">True</property>
+        <property name="mnemonic-widget">net-portgroup</property>
+      </object>
+      <packing>
+        <property name="left-attach">0</property>
+        <property name="top-attach">3</property>
+      </packing>
+    </child>
+    <child>
+      <object class="GtkComboBox" id="net-portgroup">
+        <property name="visible">True</property>
+        <property name="can-focus">False</property>
+        <property name="halign">start</property>
+        <property name="hexpand">True</property>
+        <property name="has-entry">True</property>
+        <signal name="changed" handler="on_net_portgroup_changed" swapped="no"/>
+        <child internal-child="entry">
+          <object class="GtkEntry" id="combobox-entry2">
+            <property name="can-focus">True</property>
+          </object>
+        </child>
+      </object>
+      <packing>
+        <property name="left-attach">1</property>
+        <property name="top-attach">3</property>
+      </packing>
+    </child>
   </object>
   <object class="GtkLabel" id="net-source-label">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
+    <property name="can-focus">False</property>
     <property name="halign">end</property>
     <property name="valign">start</property>
-    <property name="margin_top">3</property>
-    <property name="margin_bottom">3</property>
+    <property name="margin-top">3</property>
+    <property name="margin-bottom">3</property>
     <property name="label" translatable="yes">_Network source:</property>
-    <property name="use_underline">True</property>
-    <property name="mnemonic_widget">net-source</property>
+    <property name="use-underline">True</property>
+    <property name="mnemonic-widget">net-source</property>
   </object>
 </interface>