[ekiga] Disable the audio volume button when appropriate.

[Damien Sandras <dsandras src gnome org>]

commit 20b26345caa2851aff3c8296b4ff58f1f9a93c73
Author: Damien Sandras <dsandras seconix com>
Date:   Mon Oct 19 20:34:58 2009 +0200

    Disable the audio volume button when appropriate.
    
    When there is only one possible device and that it is pulseaudio,
    hide the audio volume button. Users should handle call volume
    through pulseaudio directly.

 src/gui/main_window.cpp |   42 ++++++++++++++++++++++++------------------
 1 files changed, 24 insertions(+), 18 deletions(-)
---
diff --git a/src/gui/main_window.cpp b/src/gui/main_window.cpp
index c3bcd34..f7bea15 100644
--- a/src/gui/main_window.cpp
+++ b/src/gui/main_window.cpp
@@ -3539,24 +3539,30 @@ ekiga_main_window_init_call_panel (EkigaMainWindow *mw)
   gtk_toolbar_set_show_arrow (GTK_TOOLBAR (mw->priv->call_panel_toolbar), FALSE);
 
   /* Audio Volume */
-  item = gtk_tool_item_new ();
-  mw->priv->audio_settings_button = gtk_button_new ();
-  gtk_button_set_relief (GTK_BUTTON (mw->priv->audio_settings_button), GTK_RELIEF_NONE);
-  image = gtk_image_new_from_icon_name (GM_ICON_AUDIO_VOLUME_HIGH,
-                                        GTK_ICON_SIZE_MENU);
-  gtk_container_add (GTK_CONTAINER (mw->priv->audio_settings_button), image);
-  gtk_container_add (GTK_CONTAINER (item), mw->priv->audio_settings_button);
-  gtk_tool_item_set_expand (GTK_TOOL_ITEM (item), FALSE);
-  
-  gtk_widget_show (mw->priv->audio_settings_button);
-  gtk_widget_set_sensitive (mw->priv->audio_settings_button, FALSE);
-  gtk_toolbar_insert (GTK_TOOLBAR (mw->priv->call_panel_toolbar),
-		      GTK_TOOL_ITEM (item), -1);
-  gtk_tool_item_set_tooltip_text (GTK_TOOL_ITEM (item),
-				  _("Change the volume of your soundcard"));
-  g_signal_connect (G_OBJECT (mw->priv->audio_settings_button), "clicked",
-		    G_CALLBACK (show_window_cb),
-		    (gpointer) mw->priv->audio_settings_window);
+  boost::shared_ptr<Ekiga::AudioOutputCore> audiooutput_core = mw->priv->core->get<Ekiga::AudioOutputCore> ("audiooutput-core");
+  std::vector <Ekiga::AudioOutputDevice> devices;
+  audiooutput_core->get_devices (devices);
+  if (!(devices.size () == 1 && devices[0].source == "Pulse")) { 
+
+    item = gtk_tool_item_new ();
+    mw->priv->audio_settings_button = gtk_button_new ();
+    gtk_button_set_relief (GTK_BUTTON (mw->priv->audio_settings_button), GTK_RELIEF_NONE);
+    image = gtk_image_new_from_icon_name (GM_ICON_AUDIO_VOLUME_HIGH,
+                                          GTK_ICON_SIZE_MENU);
+    gtk_container_add (GTK_CONTAINER (mw->priv->audio_settings_button), image);
+    gtk_container_add (GTK_CONTAINER (item), mw->priv->audio_settings_button);
+    gtk_tool_item_set_expand (GTK_TOOL_ITEM (item), FALSE);
+
+    gtk_widget_show (mw->priv->audio_settings_button);
+    gtk_widget_set_sensitive (mw->priv->audio_settings_button, FALSE);
+    gtk_toolbar_insert (GTK_TOOLBAR (mw->priv->call_panel_toolbar),
+                        GTK_TOOL_ITEM (item), -1);
+    gtk_tool_item_set_tooltip_text (GTK_TOOL_ITEM (item),
+                                    _("Change the volume of your soundcard"));
+    g_signal_connect (G_OBJECT (mw->priv->audio_settings_button), "clicked",
+                      G_CALLBACK (show_window_cb),
+                      (gpointer) mw->priv->audio_settings_window);
+  }
   
   /* Video Settings */
   item = gtk_tool_item_new ();