dali-toolkit/internal/text/rendering/atlas/atlas-glyph-manager-impl.h

   1 #ifndef DALI_TOOLKIT_ATLAS_GLYPH_MANAGER_IMPL_H
   2 #define DALI_TOOLKIT_ATLAS_GLYPH_MANAGER_IMPL_H
   3
   4 /*
   5  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  * http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  */
  19
  20 // EXTERNAL INCLUDES
  21 #include <dali/public-api/common/vector-wrapper.h>
  22 #include <dali/public-api/object/base-object.h>
  23
  24 // INTERNAL INCLUDES
  25 #include <dali-toolkit/internal/text/rendering/atlas/atlas-glyph-manager.h>
  26
  27 namespace Dali
  28 {
  29 namespace Toolkit
  30 {
  31 class AtlasGlyphManager;
  32
  33 } // namespace Toolkit
  34
  35 namespace Toolkit
  36 {
  37 namespace Internal
  38 {
  39 class AtlasGlyphManager;
  40 typedef IntrusivePtr<AtlasGlyphManager> AtlasGlyphManagerPtr;
  41
  42 class AtlasGlyphManager : public Dali::BaseObject
  43 {
  44 public:
  45   struct GlyphRecordEntry
  46   {
  47     Text::GlyphIndex mIndex;
  48     uint32_t         mImageId;
  49     int32_t          mCount;
  50     uint16_t         mOutlineWidth;
  51     bool             isItalic : 1;
  52     bool             isBold : 1;
  53   };
  54
  55   struct FontGlyphRecord
  56   {
  57     Text::FontId             mFontId;
  58     Vector<GlyphRecordEntry> mGlyphRecords;
  59   };
  60
  61   /**
  62    * @brief Constructor
  63    */
  64   AtlasGlyphManager();
  65
  66   /**
  67    * @copydoc Toolkit::AtlasGlyphManager::Add
  68    */
  69   void Add(const Text::GlyphInfo&                        glyph,
  70            const Toolkit::AtlasGlyphManager::GlyphStyle& style,
  71            const PixelData&                              bitmap,
  72            Dali::Toolkit::AtlasManager::AtlasSlot&       slot);
  73
  74   /**
  75    * @copydoc Toolkit::AtlasGlyphManager::GenerateMeshData
  76    */
  77   void GenerateMeshData(uint32_t                       imageId,
  78                         const Vector2&                 position,
  79                         Toolkit::AtlasManager::Mesh2D& mesh);
  80
  81   /**
  82    * @copydoc Toolkit::AtlasGlyphManager::IsCached
  83    */
  84   bool IsCached(Text::FontId                                  fontId,
  85                 Text::GlyphIndex                              index,
  86                 const Toolkit::AtlasGlyphManager::GlyphStyle& style,
  87                 Dali::Toolkit::AtlasManager::AtlasSlot&       slot);
  88
  89   /**
  90    * @copydoc Toolkit::AtlasGlyphManager::GetAtlasSize
  91    */
  92   Vector2 GetAtlasSize(uint32_t atlasId);
  93
  94   /**
  95    * @copydoc Toolkit::AtlasGlyphManager::SetNewAtlasSize
  96    */
  97   void SetNewAtlasSize(uint32_t width, uint32_t height, uint32_t blockWidth, uint32_t blockHeight);
  98
  99   /**
 100    * @copydoc Toolkit::AtlasGlyphManager::GetPixelFormat
 101    */
 102   Pixel::Format GetPixelFormat(uint32_t atlasId);
 103
 104   /**
 105    * @copydoc toolkit::AtlasGlyphManager::AdjustReferenceCount
 106    */
 107   void AdjustReferenceCount(Text::FontId fontId, Text::GlyphIndex index, const Toolkit::AtlasGlyphManager::GlyphStyle& style, int32_t delta);
 108
 109   /**
 110    * @copydoc Toolkit::AtlasGlyphManager::GetTextures
 111    */
 112   TextureSet GetTextures(uint32_t atlasId) const;
 113
 114   /**
 115    * @copydoc Toolkit::AtlasGlyphManager::GetMetrics
 116    */
 117   const Toolkit::AtlasGlyphManager::Metrics& GetMetrics();
 118
 119 protected:
 120   /**
 121    * A reference counted object may only be deleted by calling Unreference()
 122    */
 123   virtual ~AtlasGlyphManager();
 124
 125 private:
 126   Dali::Toolkit::AtlasManager         mAtlasManager; ///> Atlas Manager created by GlyphManager
 127   std::vector<FontGlyphRecord>        mFontGlyphRecords;
 128   Toolkit::AtlasGlyphManager::Metrics mMetrics; ///> Metrics to pass back on GlyphManager status
 129   Sampler                             mSampler;
 130 };
 131
 132 } // namespace Internal
 133
 134 inline const Internal::AtlasGlyphManager& GetImplementation(const Toolkit::AtlasGlyphManager& manager)
 135 {
 136   DALI_ASSERT_ALWAYS(manager && "AtlasGlyphManager handle is empty");
 137
 138   const BaseObject& handle = manager.GetBaseObject();
 139
 140   return static_cast<const Internal::AtlasGlyphManager&>(handle);
 141 }
 142
 143 inline Internal::AtlasGlyphManager& GetImplementation(Toolkit::AtlasGlyphManager& manager)
 144 {
 145   DALI_ASSERT_ALWAYS(manager && "AtlasGlyphManager handle is empty");
 146
 147   BaseObject& handle = manager.GetBaseObject();
 148
 149   return static_cast<Internal::AtlasGlyphManager&>(handle);
 150 }
 151
 152 } // namespace Toolkit
 153
 154 } // namespace Dali
 155
 156 #endif // DALI_TOOLKIT_ATLAS_GLYPH_MANAGER_IMPL_H