Fix text visual issue

uTextColorAnimatable property should always be registered.

Change-Id: I3ffbccc896f6abe4665a6f133b5be22df64df043

diff --git a/dali-toolkit/internal/visuals/text/text-visual.cpp b/dali-toolkit/internal/visuals/text/text-visual.cpp
index ee31d1f..a4903c5 100644 (file)
--- a/dali-toolkit/internal/visuals/text/text-visual.cpp
+++ b/dali-toolkit/internal/visuals/text/text-visual.cpp
@@ -239,6 +239,7 @@ TextVisual::TextVisual(VisualFactoryCache& factoryCache)
   mController(Text::Controller::New()),
   mTypesetter(Text::Typesetter::New(mController->GetTextModel())),
   mAnimatableTextColorPropertyIndex(Property::INVALID_INDEX),
+  mTextColorAnimatableIndex(Property::INVALID_INDEX),
   mRendererUpdateNeeded(false)
 {
 }
@@ -290,29 +291,36 @@ void TextVisual::DoSetOnScene(Actor& actor)
   // Enable the pre-multiplied alpha to improve the text quality
   EnablePreMultipliedAlpha(true);
 
-  if(mAnimatableTextColorPropertyIndex != Property::INVALID_INDEX)
+  const Vector4& defaultColor = mController->GetTextModel()->GetDefaultColor();
+  if(mTextColorAnimatableIndex == Property::INVALID_INDEX)
+  {
+    mTextColorAnimatableIndex = mImpl->mRenderer.RegisterProperty("uTextColorAnimatable", defaultColor);
+  }
+  else
   {
-    const Vector4&        defaultColor         = mController->GetTextModel()->GetDefaultColor();
-    Dali::Property::Index shaderTextColorIndex = mImpl->mRenderer.RegisterProperty("uTextColorAnimatable", defaultColor);
+    mImpl->mRenderer.SetProperty(mTextColorAnimatableIndex, defaultColor);
+  }
 
+  if(mAnimatableTextColorPropertyIndex != Property::INVALID_INDEX)
+  {
     // Create constraint for the animatable text's color Property with uTextColorAnimatable in the renderer.
-    if(shaderTextColorIndex != Property::INVALID_INDEX)
+    if(mTextColorAnimatableIndex != Property::INVALID_INDEX)
     {
       if(!mColorConstraint)
       {
-        mColorConstraint = Constraint::New<Vector4>(mImpl->mRenderer, shaderTextColorIndex, TextColorConstraint);
+        mColorConstraint = Constraint::New<Vector4>(mImpl->mRenderer, mTextColorAnimatableIndex, TextColorConstraint);
         mColorConstraint.AddSource(Source(actor, mAnimatableTextColorPropertyIndex));
       }
       mColorConstraint.Apply();
+    }
 
-      // Make zero if the alpha value of text color is zero to skip rendering text
-      if(!mOpacityConstraint)
-      {
-        mOpacityConstraint = Constraint::New<float>(mImpl->mRenderer, Dali::DevelRenderer::Property::OPACITY, OpacityConstraint);
-        mOpacityConstraint.AddSource(Source(actor, mAnimatableTextColorPropertyIndex));
-      }
-      mOpacityConstraint.Apply();
+    // Make zero if the alpha value of text color is zero to skip rendering text
+    if(!mOpacityConstraint)
+    {
+      mOpacityConstraint = Constraint::New<float>(mImpl->mRenderer, Dali::DevelRenderer::Property::OPACITY, OpacityConstraint);
+      mOpacityConstraint.AddSource(Source(actor, mAnimatableTextColorPropertyIndex));
     }
+    mOpacityConstraint.Apply();
   }
 
   // Renderer needs textures and to be added to control

diff --git a/dali-toolkit/internal/visuals/text/text-visual.h b/dali-toolkit/internal/visuals/text/text-visual.h
index 7304f0f..f9d6c79 100644 (file)
--- a/dali-toolkit/internal/visuals/text/text-visual.h
+++ b/dali-toolkit/internal/visuals/text/text-visual.h
@@ -336,6 +336,7 @@ private:
   Constraint          mColorConstraint{};                ///< Color constraint
   Constraint          mOpacityConstraint{};              ///< Opacity constraint
   Property::Index     mAnimatableTextColorPropertyIndex; ///< The index of animatable text color property registered by the control.
+  Property::Index     mTextColorAnimatableIndex;         ///< The index of uTextColorAnimatable property.
   bool                mRendererUpdateNeeded : 1;         ///< The flag to indicate whether the renderer needs to be updated.
   RendererContainer   mRendererList;
 };