Usage of CustomeView for ScrollContainer and code refactoring accordingly. Also added...

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / visuals / visual-base-impl.cpp

diff --git a/dali-toolkit/internal/visuals/visual-base-impl.cpp b/dali-toolkit/internal/visuals/visual-base-impl.cpp
index d9da123..e8ed4a3 100644 (file)
--- a/dali-toolkit/internal/visuals/visual-base-impl.cpp
+++ b/dali-toolkit/internal/visuals/visual-base-impl.cpp
@@ -109,7 +109,7 @@ float Visual::Base::GetHeightForWidth( float width ) const
   return 0.f;
 }
 
-void Visual::Base::GetNaturalSize( Vector2& naturalSize ) const
+void Visual::Base::GetNaturalSize( Vector2& naturalSize )
 {
   naturalSize = Vector2::ZERO;
 }
@@ -130,13 +130,19 @@ float Visual::Base::GetDepthIndex() const
 
 void Visual::Base::SetOnStage( Actor& actor )
 {
-  // To display the actor correctly, renderer should not be added to actor until all required resources are ready.
-  // Thus the calling of actor.AddRenderer() should happen inside derived class as base class does not know the exact timing.
-  DoSetOnStage( actor );
+  if( !IsOnStage() )
+  {
+    // To display the actor correctly, renderer should not be added to actor until all required resources are ready.
+    // Thus the calling of actor.AddRenderer() should happen inside derived class as base class does not know the exact timing.
+    DoSetOnStage( actor );
 
-  mImpl->mRenderer.SetProperty(Renderer::Property::BLEND_PRE_MULTIPLIED_ALPHA, IsPreMultipliedAlphaEnabled());
-  mImpl->mRenderer.SetProperty( Renderer::Property::DEPTH_INDEX, mImpl->mDepthIndex );
-  mImpl->mFlags |= Impl::IS_ON_STAGE;
+    if( mImpl->mRenderer )
+    {
+      mImpl->mRenderer.SetProperty( Renderer::Property::BLEND_PRE_MULTIPLIED_ALPHA, IsPreMultipliedAlphaEnabled());
+      mImpl->mRenderer.SetProperty( Renderer::Property::DEPTH_INDEX, mImpl->mDepthIndex );
+      mImpl->mFlags |= Impl::IS_ON_STAGE; // Only sets the flag if renderer exists
+    }
+  }
 }
 
 void Visual::Base::SetOffStage( Actor& actor )