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, 13 insertions, 0 deletions

diff --git a/src/Authoring/Client/Code/Core/Doc/ClientDataModelBridge/ClientDataModelBridge.cpp b/src/Authoring/Client/Code/Core/Doc/ClientDataModelBridge/ClientDataModelBridge.cpp
index f22ed07d..aa841091 100644
--- a/src/Authoring/Client/Code/Core/Doc/ClientDataModelBridge/ClientDataModelBridge.cpp
+++ b/src/Authoring/Client/Code/Core/Doc/ClientDataModelBridge/ClientDataModelBridge.cpp
@@ -329,6 +329,19 @@ qt3dsdm::Qt3DSDMPropertyHandle CClientDataModelBridge::getVariantsProperty(int i
     return 0;
 }
 
+qt3dsdm::Qt3DSDMPropertyHandle CClientDataModelBridge::getBGColorProperty(int instance) const
+{
+    EStudioObjectType instanceType = GetObjectType(instance);
+
+    if (instanceType == OBJTYPE_SCENE)
+        return m_Scene.m_BackgroundColor;
+
+    if (instanceType == OBJTYPE_LAYER)
+        return m_Layer.m_BackgroundColor;
+
+    return 0;
+}
+
 bool CClientDataModelBridge::IsInternalProperty(const TCharStr &inPropertyName) const
 {
     return (inPropertyName == L"name" || inPropertyName == L"importid" || inPropertyName == L"type"