Fix configuration of camera settings in camerabin backend.

Enable gstphotography interfaces if the compile check passes, and
implement missing pieces of whitebalance and focus configuration.

Change-Id: Icd24dfd148204f8d8218176593c3120427a13e1e
Reviewed-by: John Brooks <john.brooks@dereferenced.net>
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>

src/plugins/gstreamer/camerabin/camerabin.pro

@@ -58,7 +58,7 @@ maemo6 {
     CONFIG += have_gst_photography
 }
 
-have_gst_photography {
+config_gstreamer_photography {
     DEFINES += HAVE_GST_PHOTOGRAPHY
 
     HEADERS += \

src/plugins/gstreamer/camerabin/camerabinfocus.cpp

@@ -58,6 +58,8 @@ CameraBinFocus::CameraBinFocus(CameraBinSession *session)
      m_focusStatus(QCamera::Unlocked),
      m_focusZoneStatus(QCameraFocusZone::Selected)
 {
+    gst_photography_set_focus_mode(m_session->photography(), GST_PHOTOGRAPHY_FOCUS_MODE_AUTO);
+
     connect(m_session, SIGNAL(stateChanged(QCamera::State)),
             this, SLOT(_q_handleCameraStateChange(QCamera::State)));
 }
@@ -73,14 +75,49 @@ QCameraFocus::FocusModes CameraBinFocus::focusMode() const
 
 void CameraBinFocus::setFocusMode(QCameraFocus::FocusModes mode)
 {
-    if (isFocusModeSupported(mode)) {
+    GstFocusMode photographyMode;
-        m_focusMode = mode;
+
+    switch (mode) {
+    case QCameraFocus::AutoFocus:
+        photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_AUTO;
+        break;
+    case QCameraFocus::HyperfocalFocus:
+        photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_HYPERFOCAL;
+        break;
+    case QCameraFocus::InfinityFocus:
+        photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_INFINITY;
+        break;
+    case QCameraFocus::ContinuousFocus:
+        photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_CONTINUOUS_NORMAL;
+        break;
+    case QCameraFocus::MacroFocus:
+        photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_MACRO;
+        break;
+    default:
+        if (mode & QCameraFocus::AutoFocus) {
+            photographyMode = GST_PHOTOGRAPHY_FOCUS_MODE_AUTO;
+            break;
+        } else {
+            return;
+        }
     }
+
+    if (gst_photography_set_focus_mode(m_session->photography(), photographyMode))
+        m_focusMode = mode;
 }
 
 bool CameraBinFocus::isFocusModeSupported(QCameraFocus::FocusModes mode) const
 {
-    return mode & QCameraFocus::AutoFocus;
+    switch (mode) {
+    case QCameraFocus::AutoFocus:
+    case QCameraFocus::HyperfocalFocus:
+    case QCameraFocus::InfinityFocus:
+    case QCameraFocus::ContinuousFocus:
+    case QCameraFocus::MacroFocus:
+        return true;
+    default:
+        return mode & QCameraFocus::AutoFocus;
+    }
 }
 
 QCameraFocus::FocusPointMode CameraBinFocus::focusPointMode() const

src/plugins/gstreamer/camerabin/camerabinimageprocessing.cpp

@@ -188,7 +188,9 @@ bool CameraBinImageProcessing::isParameterValueSupported(QCameraImageProcessingC
 QVariant CameraBinImageProcessing::parameter(
         QCameraImageProcessingControl::ProcessingParameter parameter) const
 {
-    if (m_values.contains(parameter))
+    if (parameter == QCameraImageProcessingControl::WhiteBalancePreset)
+        return QVariant::fromValue<QCameraImageProcessing::WhiteBalanceMode>(whiteBalanceMode());
+    else if (m_values.contains(parameter))
         return m_values.value(parameter);
     else
         return QVariant();