Add support for changing ports.

This commit adds a combo box for selecting ports.
Overall this implementation could have taken two paths:
 * Implement port selection as combo box.
 * Implement port selection as a button.

I went for the first option as is done in selecting card profiles over the
second method used for selecting devices for streams. This seems more like
how a config option should be presented as opposed to a runtime type thing.

src/devicewidget.cc

@@ -32,10 +32,18 @@ DeviceWidget::DeviceWidget(BaseObjectType* cobject, const Glib::RefPtr<Gnome::Gl
     x->get_widget("lockToggleButton", lockToggleButton);
     x->get_widget("muteToggleButton", muteToggleButton);
     x->get_widget("defaultToggleButton", defaultToggleButton);
+    x->get_widget("portSelect", portSelect);
+    x->get_widget("portList", portList);
 
     muteToggleButton->signal_clicked().connect(sigc::mem_fun(*this, &DeviceWidget::onMuteToggleButton));
     defaultToggleButton->signal_clicked().connect(sigc::mem_fun(*this, &DeviceWidget::onDefaultToggleButton));
 
+    treeModel = Gtk::ListStore::create(portModel);
+    portList->set_model(treeModel);
+    portList->pack_start(portModel.desc);
+
+    portList->signal_changed().connect( sigc::mem_fun(*this, &DeviceWidget::onPortChange));
+
     for (unsigned i = 0; i < PA_CHANNELS_MAX; i++)
         channelWidgets[i] = NULL;
 }
@@ -121,3 +129,27 @@ void DeviceWidget::setSteps(unsigned n) {
     for (int i = 0; i < channelMap.channels; i++)
         channelWidgets[channelMap.channels-1]->setSteps(n);
 }
+
+void DeviceWidget::prepareMenu() {
+  int idx = 0;
+  int active_idx = -1;
+
+  treeModel->clear();
+  /* Fill the ComboBox's Tree Model */
+  for (uint32_t i = 0; i < ports.size(); ++i) {
+    Gtk::TreeModel::Row row = *(treeModel->append());
+    row[portModel.name] = ports[i].first;
+    row[portModel.desc] = ports[i].second;
+    if (ports[i].first == activePort)
+      active_idx = idx;
+    idx++;
+  }
+
+  if (active_idx >= 0)
+    portList->set_active(active_idx);
+
+  if (ports.size() > 0)
+    portSelect->show();
+  else
+    portSelect->hide();
+}

src/devicewidget.h

@@ -53,6 +53,32 @@ public:
     virtual void executeVolumeUpdate();
     virtual void setBaseVolume(pa_volume_t v);
     virtual void setSteps(unsigned n);
+
+    std::vector< std::pair<Glib::ustring,Glib::ustring> > ports;
+    Glib::ustring activePort;
+
+    void prepareMenu();
+
+protected:
+    virtual void onPortChange() = 0;
+
+    /* Tree model columns */
+    class ModelColumns : public Gtk::TreeModel::ColumnRecord
+    {
+      public:
+
+        ModelColumns()
+        { add(name); add(desc); }
+
+        Gtk::TreeModelColumn<Glib::ustring> name;
+        Gtk::TreeModelColumn<Glib::ustring> desc;
+    };
+
+    ModelColumns portModel;
+
+    Gtk::HBox *portSelect;
+    Gtk::ComboBox *portList;
+    Glib::RefPtr<Gtk::ListStore> treeModel;
 };
 
 #endif

src/mainwindow.cc

@@ -45,6 +45,24 @@ struct profile_prio_compare {
     return lhs.priority > rhs.priority;
   }
 };
+struct sink_port_prio_compare {
+  bool operator() (const pa_sink_port_info& lhs, const pa_sink_port_info& rhs) const {
+    
+    if (lhs.priority == rhs.priority)
+      return strcmp(lhs.name, rhs.name) > 0;
+    
+    return lhs.priority > rhs.priority;
+  }
+};
+struct source_port_prio_compare {
+  bool operator() (const pa_source_port_info& lhs, const pa_source_port_info& rhs) const {
+    
+    if (lhs.priority == rhs.priority)
+      return strcmp(lhs.name, rhs.name) > 0;
+    
+    return lhs.priority > rhs.priority;
+  }
+};
 
 
 MainWindow::MainWindow(BaseObjectType* cobject, const Glib::RefPtr<Gnome::Glade::Xml>& x) :
@@ -162,11 +180,10 @@ void MainWindow::updateCard(const pa_card_info &info) {
     }
 
     w->profiles.clear();
-
     for (std::set<pa_card_profile_info>::iterator i = profile_priorities.begin(); i != profile_priorities.end(); ++i)
         w->profiles.push_back(std::pair<Glib::ustring,Glib::ustring>(i->name, i->description));
 
-    w->activeProfile = info.active_profile->name;
+    w->activeProfile = info.active_profile ? info.active_profile->name : "";
     
     w->updating = false;
 
@@ -180,6 +197,7 @@ void MainWindow::updateSink(const pa_sink_info &info) {
     SinkWidget *w;
     bool is_new = false;
     const char *icon;
+    std::set<pa_sink_port_info,sink_port_prio_compare> port_priorities;
 
     if (sinkWidgets.count(info.index))
         w = sinkWidgets[info.index];
@@ -216,8 +234,21 @@ void MainWindow::updateSink(const pa_sink_info &info) {
 
     w->setDefault(w->name == defaultSinkName);
 
+    port_priorities.clear();
+    for (uint32_t i=0; i<info.n_ports; ++i) {
+      port_priorities.insert(*info.ports[i]);
+    }
+
+    w->ports.clear();
+    for (std::set<pa_sink_port_info>::iterator i = port_priorities.begin(); i != port_priorities.end(); ++i)
+      w->ports.push_back(std::pair<Glib::ustring,Glib::ustring>(i->name, i->description));
+
+    w->activePort = info.active_port ? info.active_port->name : "";
+
     w->updating = false;
 
+    w->prepareMenu();
+
     if (is_new)
         updateDeviceVisibility();
 }
@@ -327,6 +358,7 @@ void MainWindow::updateSource(const pa_source_info &info) {
     SourceWidget *w;
     bool is_new = false;
     const char *icon;
+    std::set<pa_source_port_info,source_port_prio_compare> port_priorities;
     
     if (sourceWidgets.count(info.index))
         w = sourceWidgets[info.index];
@@ -364,8 +396,21 @@ void MainWindow::updateSource(const pa_source_info &info) {
 
     w->setDefault(w->name == defaultSourceName);
 
+    port_priorities.clear();
+    for (uint32_t i=0; i<info.n_ports; ++i) {
+      port_priorities.insert(*info.ports[i]);
+    }
+
+    w->ports.clear();
+    for (std::set<pa_source_port_info>::iterator i = port_priorities.begin(); i != port_priorities.end(); ++i)
+      w->ports.push_back(std::pair<Glib::ustring,Glib::ustring>(i->name, i->description));
+
+    w->activePort = info.active_port ? info.active_port->name : "";
+
     w->updating = false;
 
+    w->prepareMenu();
+
     if (is_new)
         updateDeviceVisibility();
 }

src/pavucontrol.glade

@@ -797,6 +797,35 @@ Monitors</property>
                     <property name="position">0</property>
                   </packing>
                 </child>
+                <child>
+                  <widget class="GtkHBox" id="portSelect">
+                    <property name="visible">True</property>
+                    <property name="spacing">6</property>
+                    <child>
+                      <widget class="GtkLabel" id="label1">
+                        <property name="visible">True</property>
+                        <property name="xalign">0</property>
+                        <property name="label" translatable="yes">&lt;b&gt;Port:&lt;/b&gt;</property>
+                        <property name="use_markup">True</property>
+                      </widget>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="position">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <widget class="GtkComboBox" id="portList">
+                        <property name="visible">True</property>
+                      </widget>
+                      <packing>
+                        <property name="position">1</property>
+                      </packing>
+                    </child>
+                  </widget>
+                  <packing>
+                    <property name="position">1</property>
+                  </packing>
+                </child>
                 <child>
                   <widget class="GtkVBox" id="channelsVBox">
                     <property name="visible">True</property>
@@ -811,7 +840,7 @@ Monitors</property>
                   <packing>
                     <property name="expand">False</property>
                     <property name="fill">False</property>
-                    <property name="position">1</property>
+                    <property name="position">2</property>
                   </packing>
                 </child>
               </widget>

src/sinkwidget.cc

@@ -75,3 +75,28 @@ void SinkWidget::onDefaultToggleButton() {
     }
     pa_operation_unref(o);
 }
+
+void SinkWidget::onPortChange() {
+  Gtk::TreeModel::iterator iter;
+
+  if (updating)
+    return;
+
+  iter = portList->get_active();
+  if (iter)
+  {
+    Gtk::TreeModel::Row row = *iter;
+    if (row)
+    {
+      pa_operation* o;
+      Glib::ustring port = row[portModel.name];
+
+      if (!(o = pa_context_set_sink_port_by_index(get_context(), index, port.c_str(), NULL, NULL))) {
+        show_error(_("pa_context_set_sink_port_by_index() failed"));
+        return;
+      }
+
+      pa_operation_unref(o);
+    }
+  }
+}

src/sinkwidget.h

@@ -39,6 +39,9 @@ public:
     virtual void onMuteToggleButton();
     virtual void executeVolumeUpdate();
     virtual void onDefaultToggleButton();
+
+protected:
+    virtual void onPortChange();
 };
 
 #endif

src/sourcewidget.cc

@@ -75,3 +75,28 @@ void SourceWidget::onDefaultToggleButton() {
     }
     pa_operation_unref(o);
 }
+
+void SourceWidget::onPortChange() {
+  Gtk::TreeModel::iterator iter;
+
+  if (updating)
+    return;
+
+  iter = portList->get_active();
+  if (iter)
+  {
+    Gtk::TreeModel::Row row = *iter;
+    if (row)
+    {
+      pa_operation* o;
+      Glib::ustring port = row[portModel.name];
+
+      if (!(o = pa_context_set_source_port_by_index(get_context(), index, port.c_str(), NULL, NULL))) {
+        show_error(_("pa_context_set_source_port_by_index() failed"));
+        return;
+      }
+
+      pa_operation_unref(o);
+    }
+  }
+}

src/sourcewidget.h

@@ -39,6 +39,9 @@ public:
     virtual void onMuteToggleButton();
     virtual void executeVolumeUpdate();
     virtual void onDefaultToggleButton();
+
+protected:
+    virtual void onPortChange();
 };
 
 #endif