Make NPatchData receive LoadComplete call from TextureManager.

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / visuals / npatch-loader.h

diff --git a/dali-toolkit/internal/visuals/npatch-loader.h b/dali-toolkit/internal/visuals/npatch-loader.h
index 61ec60d..b2b4a7c 100644 (file)
--- a/dali-toolkit/internal/visuals/npatch-loader.h
+++ b/dali-toolkit/internal/visuals/npatch-loader.h
@@ -2,7 +2,7 @@
 #define DALI_TOOLKIT_NPATCH_LOADER_H
 
 /*
- * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2020 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.
@@ -21,10 +21,12 @@
 #include <string>
 #include <dali/public-api/rendering/texture-set.h>
 #include <dali/devel-api/common/owner-container.h>
-#include <dali/devel-api/images/nine-patch-image.h>
+#include <dali/devel-api/adaptor-framework/pixel-buffer.h>
 
 // INTERNAL INCLUDES
-#include <dali-toolkit/devel-api/image-loader/image-atlas.h>
+#include <dali-toolkit/internal/visuals/npatch-data.h>
+#include <dali-toolkit/internal/visuals/texture-manager-impl.h>
+#include <dali-toolkit/devel-api/utility/npatch-utilities.h>
 
 namespace Dali
 {
@@ -48,24 +50,6 @@ class NPatchLoader
 {
 public:
 
-  enum
-  {
-    UNINITIALIZED_ID = 0 ///< uninitialised id, use to initialize ids
-  };
-
-  struct Data
-  {
-    std::string url;                              ///< Url of the N-Patch
-    TextureSet textureSet;                        ///< Texture containing the cropped image
-    NinePatchImage::StretchRanges stretchPixelsX; ///< X stretch pixels
-    NinePatchImage::StretchRanges stretchPixelsY; ///< Y stretch pixels
-    std::size_t hash;                             ///< Hash code for the Url
-    uint32_t croppedWidth;                        ///< Width of the cropped middle part of N-patch
-    uint32_t croppedHeight;                       ///< Height of the cropped middle part of N-patch
-  };
-
-public:
-
   /**
    * Constructor
    */
@@ -79,19 +63,49 @@ public:
   /**
    * @brief Retrieve a texture matching the n-patch url.
    *
+   * @param [in] textureManager that will be used to loading image
+   * @param [in] textureObserver The NPatchVisual that requested loading.
    * @param [in] url to retrieve
    * @param [in] border The border size of the image
+   * @param [in,out] preMultiplyOnLoad True if the image color should be multiplied by it's alpha. Set to false if the
+   *                                   image has no alpha channel
+   * @param [in] synchronousLoading True if the image will be loaded in synchronous time.
    * @return id of the texture.
    */
-  std::size_t Load( const std::string& url, const Rect< int >& border );
+  std::size_t Load( TextureManager& textureManager, TextureUploadObserver* textureObserver, const std::string& url, const Rect< int >& border, bool& preMultiplyOnLoad, bool synchronousLoading );
+
+  /**
+   * @brief Set loaded PixelBuffer and its information
+   *
+   * @param [in] id cache data id
+   * @param [in] pixelBuffer of loaded image
+   * @param [in] preMultiplied True if the image had pre-multiplied alpha applied
+   */
+  void SetNPatchData( std::size_t id, Devel::PixelBuffer& pixelBuffer, bool preMultiplied );
 
   /**
    * @brief Retrieve N patch data matching to an id
    * @param [in] id of data
-   * @param [out] data const pointer to the data
+   * @param [out] data const pointer to the NPatchData
    * @return true if data matching to id was really found
    */
-  bool GetNPatchData( std::size_t id, const Data*& data );
+  bool GetNPatchData( const NPatchData::NPatchDataId id, const NPatchData*& data );
+
+  /**
+   * @brief Remove a texture matching id.
+   * Erase the observer from the observer list of cache.
+   * If the observer list is empty, the textureSet will be reset.
+   *
+   * @param [in] id cache data id
+   * @param [in] textureObserver The NPatchVisual that requested loading.
+   */
+  void Remove( std::size_t id, TextureUploadObserver* textureObserver );
+
+private:
+
+  NPatchData::NPatchDataId GenerateUniqueNPatchDataId();
+
+  int32_t GetCacheIndexFromId( const NPatchData::NPatchDataId id );
 
 protected:
 
@@ -107,8 +121,8 @@ protected:
 
 private:
 
-  OwnerContainer< Data* > mCache;
-
+  NPatchData::NPatchDataId mCurrentNPatchDataId;
+  OwnerContainer< NPatchData* > mCache;
 };
 
 } // name Internal