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, 6 insertions, 0 deletions

diff --git a/src/Authoring/QT3DSDM/Systems/Qt3DSDMAnimation.h b/src/Authoring/QT3DSDM/Systems/Qt3DSDMAnimation.h
index c2a7c3b8..361e522b 100644
--- a/src/Authoring/QT3DSDM/Systems/Qt3DSDMAnimation.h
+++ b/src/Authoring/QT3DSDM/Systems/Qt3DSDMAnimation.h
@@ -519,6 +519,10 @@ struct SAnimatableArityVisitor
     {
         return std::tuple<bool, size_t>(true, 3);
     }
+    std::tuple<bool, size_t> operator()(const SFloat4 &) const
+    {
+        return std::tuple<bool, size_t>(true, 4);
+    }
     template <typename TDataType>
     std::tuple<bool, size_t> operator()(const TDataType &) const
     {
@@ -548,6 +552,8 @@ inline std::tuple<bool, size_t> GetDatatypeAnimatableAndArity(DataModelDataType:
         return std::make_tuple(true, 2);
     case DataModelDataType::Float3:
         return std::make_tuple(true, 3);
+    case DataModelDataType::Float4:
+        return std::make_tuple(true, 4);
     }
 }