Implement "Add Layer" selection in timeline tree context menu

Context menu for Scene element allows adding layer (in addition to
button at the timeline widget bottom.

Task-ID: QT3DS-1992

Change-Id: Iaf3f02cc346dffee741c306162295768aa947719
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
Reviewed-by: Janne Koskinen <janne.p.koskinen@qt.io>
Reviewed-by: Antti Määttä <antti.maatta@qt.io>

2 files changed, 19 insertions, 0 deletions

diff --git a/src/Authoring/Studio/Palettes/Timeline/Bindings/ITimelineItemBinding.h b/src/Authoring/Studio/Palettes/Timeline/Bindings/ITimelineItemBinding.h
index 0ee1a0de..02979934 100644
--- a/src/Authoring/Studio/Palettes/Timeline/Bindings/ITimelineItemBinding.h
+++ b/src/Authoring/Studio/Palettes/Timeline/Bindings/ITimelineItemBinding.h
@@ -73,6 +73,7 @@ public:
         EUserTransaction_EditComponent,
         EUserTransaction_Group,
         EUserTransaction_Ungroup,
+        EUserTransaction_AddLayer,
     };
 
 public:
diff --git a/src/Authoring/Studio/Palettes/Timeline/Bindings/Qt3DSDMTimelineItemBinding.cpp b/src/Authoring/Studio/Palettes/Timeline/Bindings/Qt3DSDMTimelineItemBinding.cpp
index c3c2e5f3..c02b798b 100644
--- a/src/Authoring/Studio/Palettes/Timeline/Bindings/Qt3DSDMTimelineItemBinding.cpp
+++ b/src/Authoring/Studio/Palettes/Timeline/Bindings/Qt3DSDMTimelineItemBinding.cpp
@@ -598,6 +598,9 @@ bool Qt3DSDMTimelineItemBinding::IsValidTransaction(EUserTransaction inTransacti
     case EUserTransaction_Ungroup:
         return g_StudioApp.canUngroupSelectedObjects();
 
+    case EUserTransaction_AddLayer:
+        return (GetObjectType() == OBJTYPE_SCENE);
+
     default: // not handled
         break;
     }
@@ -634,6 +637,17 @@ inline void DoUngroupObjects(CDoc &inDoc, const qt3dsdm::TInstanceHandleList &in
     g_StudioApp.ungroupSelectedObjects();
 }
 
+inline void doAddLayer(CDoc &inDoc, const qt3dsdm::TInstanceHandleList &inInstances)
+{
+    qt3dsdm::Qt3DSDMSlideHandle slide = inDoc.GetActiveSlide();
+    qt3dsdm::Qt3DSDMInstanceHandle parent = inDoc.GetActiveLayer();
+
+    SCOPED_DOCUMENT_EDITOR(inDoc, QObject::tr("Add Layer"))
+        ->CreateSceneGraphInstance(qt3dsdm::ComposerObjectTypes::Layer, parent, slide,
+                                   DocumentEditorInsertType::PreviousSibling,
+                                   CPt(), PRIMITIVETYPE_UNKNOWN, -1);
+}
+
 void Qt3DSDMTimelineItemBinding::PerformTransaction(EUserTransaction inTransaction)
 {
     CDoc *theDoc = m_TransMgr->GetDoc();
@@ -679,6 +693,10 @@ void Qt3DSDMTimelineItemBinding::PerformTransaction(EUserTransaction inTransacti
         theDispatch.FireOnAsynchronousCommand(
                     std::bind(DoUngroupObjects, std::ref(*theDoc), theInstances));
     } break;
+    case EUserTransaction_AddLayer: {
+        theDispatch.FireOnAsynchronousCommand(
+                    std::bind(doAddLayer, std::ref(*theDoc), theInstances));
+    } break;
     default: // not handled
         break;
     }