Fix the text visual shaders to work with pre-multiplied alpha

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

diff --git a/dali-toolkit/internal/visuals/visual-base-impl.h b/dali-toolkit/internal/visuals/visual-base-impl.h
index 15b2539..c450d91 100644 (file)
--- a/dali-toolkit/internal/visuals/visual-base-impl.h
+++ b/dali-toolkit/internal/visuals/visual-base-impl.h
@@ -2,7 +2,7 @@
 #define DALI_TOOLKIT_INTERNAL_VISUAL_H
 
 /*
- * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,6 +31,7 @@
 #include <dali-toolkit/devel-api/visual-factory/visual-base.h>
 #include <dali-toolkit/internal/visuals/transition-data-impl.h>
 #include <dali-toolkit/internal/visuals/visual-factory-cache.h>
+#include <dali-toolkit/devel-api/direction-enums.h>
 
 namespace Dali
 {
@@ -44,6 +45,8 @@ namespace Internal
 namespace Visual
 {
 
+class ResourceObserver;
+
 /**
  * Base class for all Control rendering logic. A control may have multiple visuals.
  *
@@ -107,12 +110,12 @@ public:
   /**
    * @copydoc Toolkit::Visual::Base::SetDepthIndex
    */
-  void SetDepthIndex( float index );
+  void SetDepthIndex( int index );
 
   /**
    * @copydoc Toolkit::Visual::Base::GetDepthIndex
    */
-  float GetDepthIndex() const;
+  int GetDepthIndex() const;
 
   /**
    * @copydoc Toolkit::Visual::Base::SetOnStage
@@ -143,9 +146,9 @@ public:
   /**
    * @brief Set whether the Pre-multiplied Alpha Blending is required
    *
-   * @param[in] preMultipled whether alpha is pre-multiplied.
+   * @param[in] preMultiplied whether alpha is pre-multiplied.
    */
-  void EnablePreMultipliedAlpha( bool preMultipled );
+  void EnablePreMultipliedAlpha( bool preMultiplied );
 
   /**
    * @brief Query whether alpha is pre-multiplied.
@@ -208,6 +211,29 @@ public:
   void AnimateProperty( Dali::Animation& transition,
                         Internal::TransitionData::Animator& animator );
 
+  /**
+   * @brief Add an observer to watch for when the Visuals resources are loaded.
+   * Currently only supports a single observer
+   *
+   */
+  void AddResourceObserver( Visual::ResourceObserver& observer );
+
+  /**
+   * @brief Remove an observer
+   */
+  void RemoveResourceObserver( Visual::ResourceObserver& observer );
+
+  /**
+   * @brief Called when the visuals resources are loaded / ready
+   */
+  void ResourceReady();
+
+  /**
+   * @brief Called when the visuals resources are loaded / ready
+   * @return true if ready, false otherwise
+   */
+  bool IsResourceReady() const;
+
 protected:
 
   /**
@@ -278,13 +304,6 @@ protected:
    */
   bool IsOnStage() const;
 
-  /**
-   * @brief Gets whether the Dali::Renderer is from a shared cache (and therefore any modifications will affect other users of that renderer)
-   *
-   * @return Returns true if the renderer is from shared cache, false otherwise
-   */
-  bool IsFromCache() const;
-
 private:
 
   /**