Drivers: Various fixes to the gNautilus driver

- Error messages are now printed to the LogManager
- Added handling of additional error cases
- Added support for channel units
- Miscellaneous small fixes and code cleanup

Patch contributed by g.tec medical engineering GmbH

contrib/plugins/server-drivers/gtec-gnautilus/share/interface-gNautilusInterface.ui

@@ -3575,6 +3575,19 @@
             <property name="position">6</property>
           </packing>
         </child>
+        <child>
+          <object class="GtkButton" id="button_change_channel_names">
+            <property name="label" translatable="yes">Change channel names...</property>
+            <property name="sensitive">False</property>
+            <property name="can_focus">True</property>
+            <property name="receives_default">True</property>
+          </object>
+          <packing>
+            <property name="expand">True</property>
+            <property name="fill">True</property>
+            <property name="position">7</property>
+          </packing>
+        </child>
         <child>
           <object class="GtkLabel" id="label_channel_settings">
             <property name="visible">True</property>
@@ -3584,7 +3597,7 @@
           <packing>
             <property name="expand">True</property>
             <property name="fill">True</property>
-            <property name="position">7</property>
+            <property name="position">8</property>
           </packing>
         </child>
         <child>
@@ -3595,7 +3608,7 @@
           <packing>
             <property name="expand">False</property>
             <property name="fill">True</property>
-            <property name="position">8</property>
+            <property name="position">9</property>
           </packing>
         </child>
         <child>
@@ -3632,7 +3645,7 @@
           <packing>
             <property name="expand">True</property>
             <property name="fill">True</property>
-            <property name="position">9</property>
+            <property name="position">10</property>
           </packing>
         </child>
         <child>
@@ -3643,7 +3656,7 @@
           <packing>
             <property name="expand">False</property>
             <property name="fill">True</property>
-            <property name="position">10</property>
+            <property name="position">11</property>
           </packing>
         </child>
       </object>

contrib/plugins/server-drivers/gtec-gnautilus/src/ovasCConfigurationgNautilusInterface.h

@@ -51,7 +51,7 @@ namespace OpenViBEAcquisitionServer
 										 OpenViBE::boolean& rBatteryLevelEnabled,
 										 OpenViBE::boolean& rValidationIndicatorEnabled,
 										 vector<OpenViBE::uint16>& rSelectedChannels,
-										 vector<OpenViBE::uint16>& rBipolarChannels,
+										 vector<OpenViBE::int32>& rBipolarChannels,
 										 vector<OpenViBE::boolean>& rCAR,
 										 vector<OpenViBE::boolean>& rNoiseReduction
 										 );
@@ -90,7 +90,7 @@ namespace OpenViBEAcquisitionServer
 		OpenViBE::boolean& m_rBatteryLevelEnabled;
 		OpenViBE::boolean& m_rValidationIndicatorEnabled;
 		vector<OpenViBE::uint16>& m_vSelectedChannels;
-		vector<OpenViBE::uint16>& m_vBipolarChannels;
+		vector<OpenViBE::int32>& m_vBipolarChannels;
 		vector<OpenViBE::boolean>& m_vCAR;
 		vector<OpenViBE::boolean>& m_vNoiseReduction;
 		vector<OpenViBE::int32> m_vComboBoxBandpassFilterIndex;

contrib/plugins/server-drivers/gtec-gnautilus/src/ovasCDrivergNautilusInterface.h

@@ -89,7 +89,7 @@ namespace OpenViBEAcquisitionServer
 		OpenViBE::boolean m_bBatteryLevelEnabled;
 		OpenViBE::boolean m_bValidationIndicatorEnabled;
 		vector<OpenViBE::uint16> m_vSelectedChannels;
-		vector<OpenViBE::uint16> m_vBipolarChannels;
+		vector<OpenViBE::int32> m_vBipolarChannels;
 		vector<OpenViBE::boolean> m_vNoiseReduction;
 		vector<OpenViBE::boolean> m_vCAR;
 		OpenViBE::uint32 m_ui32AcquiredChannelCount;