Support alpha channel initial work

In this initial work, all (almost) color properties are converted into a new type (float4) to
support an alpha channel. Alpha channel option is shown in the color dialog for Layer and Scene
background properties only. The following is remaining:
- Scene background alpha doesn't work in the editor (works in the viewer RT1)

Task-number: QT3DS-3128
Change-Id: Ib5540ebc8e2ff68709473451e4a92bf66ddb8ad2
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/Authoring/QT3DSDM/Systems/Qt3DSDMValue.cpp b/src/Authoring/QT3DSDM/Systems/Qt3DSDMValue.cpp
index b6077b04..94c5a594 100644
--- a/src/Authoring/QT3DSDM/Systems/Qt3DSDMValue.cpp
+++ b/src/Authoring/QT3DSDM/Systems/Qt3DSDMValue.cpp
@@ -46,7 +46,7 @@ SValue::SValue(const QVariant &inData)
     case QVariant::Color:
     {
         const QColor c = inData.value<QColor>();
-        *this = qt3dsdm::SFloat3(c.redF(), c.greenF(), c.blueF());
+        *this = qt3dsdm::SFloat4(c.redF(), c.greenF(), c.blueF(), c.alphaF());
         break;
     }
     case QVariant::String:
@@ -110,6 +110,9 @@ QVariant SValue::toQVariant() const
     case DataModelDataType::Float3: {
         return QVariant::fromValue(get<QVector3D>(*this));
     }
+    case DataModelDataType::Float4: {
+        return QVariant::fromValue(get<QVector<float> >(*this));
+    }
     case DataModelDataType::Long: {
         return QVariant::fromValue(get<qt3ds::QT3DSI32>(*this));
     }