[NUI.Scene3D] Create and Register Scene3D.Camera

Due to the Scene3D.SceneView's default camera didn't created in NUI side, we need to Regist this camera information into Registry.
If we already register it into Registry, use that.
Else, register new Camera into Registry.

Signed-off-by: Eunki, Hong <eunkiki.hong@samsung.com>

diff --git a/src/Tizen.NUI.Scene3D/src/public/Controls/SceneView.cs b/src/Tizen.NUI.Scene3D/src/public/Controls/SceneView.cs
index 84fa92b..bc6ce95 100755 (executable)
--- a/src/Tizen.NUI.Scene3D/src/public/Controls/SceneView.cs
+++ b/src/Tizen.NUI.Scene3D/src/public/Controls/SceneView.cs
@@ -161,6 +161,10 @@ namespace Tizen.NUI.Scene3D
         /// first camera in the list is set to selected Camera.
         /// </summary>
         /// <param name="camera"> camera Camera to be removed from this Camera.</param>
+        /// <remarks>
+        /// Camera.Dispose() don't automatically release memory. We should call this API if we want to release memory.
+        /// We cannot remove default camera. If we try to remove default camera, ignored.
+        /// </remarks>
         // This will be public opened after ACR done. (Before ACR, need to be hidden as Inhouse API)
         [EditorBrowsable(EditorBrowsableState.Never)]
         public void RemoveCamera(Camera camera)
@@ -194,7 +198,20 @@ namespace Tizen.NUI.Scene3D
         [EditorBrowsable(EditorBrowsableState.Never)]
         public Camera GetCamera(uint index)
         {
-            Camera camera = new Camera(Interop.SceneView.GetCamera(SwigCPtr, index), false);
+            global::System.IntPtr cPtr = Interop.SceneView.GetCamera(SwigCPtr, index);
+            Camera camera = Registry.GetManagedBaseHandleFromNativePtr(cPtr) as Camera;
+            if(camera == null)
+            {
+                // Register new camera into Registry.
+                camera = new Camera(cPtr, true);
+            }
+            else
+            {
+                // We found matched NUI camera. Reduce cPtr reference count.
+                HandleRef handle = new HandleRef(this, cPtr);
+                Interop.Camera.DeleteCameraProperty(handle);
+                handle = new HandleRef(null, IntPtr.Zero);
+            }
             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
             return camera;
         }
@@ -208,7 +225,20 @@ namespace Tizen.NUI.Scene3D
         [EditorBrowsable(EditorBrowsableState.Never)]
         public Camera GetCamera(string name)
         {
-            Camera camera = new Camera(Interop.SceneView.GetCamera(SwigCPtr, name), false);
+            global::System.IntPtr cPtr = Interop.SceneView.GetCamera(SwigCPtr, name);
+            Camera camera = Registry.GetManagedBaseHandleFromNativePtr(cPtr) as Camera;
+            if(camera == null)
+            {
+                // Register new camera into Registry.
+                camera = new Camera(cPtr, true);
+            }
+            else
+            {
+                // We found matched NUI camera. Reduce cPtr reference count.
+                HandleRef handle = new HandleRef(this, cPtr);
+                Interop.Camera.DeleteCameraProperty(handle);
+                handle = new HandleRef(null, IntPtr.Zero);
+            }
             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
             return camera;
         }
@@ -245,7 +275,20 @@ namespace Tizen.NUI.Scene3D
         [EditorBrowsable(EditorBrowsableState.Never)]
         public Camera GetSelectedCamera()
         {
-            Camera camera = new Camera(Interop.SceneView.GetSelectedCamera(SwigCPtr), false);
+            global::System.IntPtr cPtr = Interop.SceneView.GetSelectedCamera(SwigCPtr);
+            Camera camera = Registry.GetManagedBaseHandleFromNativePtr(cPtr) as Camera;
+            if(camera == null)
+            {
+                // Register new camera into Registry.
+                camera = new Camera(cPtr, true);
+            }
+            else
+            {
+                // We found matched NUI camera. Reduce cPtr reference count.
+                HandleRef handle = new HandleRef(this, cPtr);
+                Interop.Camera.DeleteCameraProperty(handle);
+                handle = new HandleRef(null, IntPtr.Zero);
+            }
             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
             return camera;
         }