[4.0] Don't render text visual if the string is empty

Change-Id: I88ad9e720501024e14a963ce73274ffde80f46f6

diff --git a/dali-toolkit/internal/visuals/text/text-visual.cpp b/dali-toolkit/internal/visuals/text/text-visual.cpp
index dfc4a84..f652e16 100755 (executable)
--- a/dali-toolkit/internal/visuals/text/text-visual.cpp
+++ b/dali-toolkit/internal/visuals/text/text-visual.cpp
@@ -644,7 +644,10 @@ void TextVisual::UpdateRenderer()
     animatableTextColor = control.GetProperty< Vector4 >( mAnimatableTextColorPropertyIndex );
   }
 
-  if( ( fabsf( relayoutSize.width ) < Math::MACHINE_EPSILON_1000 ) || ( fabsf( relayoutSize.height ) < Math::MACHINE_EPSILON_1000 ) )
+  std::string text;
+  mController->GetText( text );
+
+  if( ( fabsf( relayoutSize.width ) < Math::MACHINE_EPSILON_1000 ) || ( fabsf( relayoutSize.height ) < Math::MACHINE_EPSILON_1000 ) || text.empty() )
   {
     // Removes the texture set.
     RemoveTextureSet();