dali-toolkit/internal/text/text-view.h

   1 #ifndef DALI_TOOLKIT_TEXT_VIEW_H
   2 #define DALI_TOOLKIT_TEXT_VIEW_H
   3
   4 /*
   5  * Copyright (c) 2022 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
  21 // INTERNAL INCLUDES
  22 #include <dali-toolkit/internal/text/bounded-paragraph-run.h>
  23 #include <dali-toolkit/internal/text/logical-model-impl.h>
  24 #include <dali-toolkit/internal/text/text-view-interface.h>
  25 #include <dali-toolkit/internal/text/visual-model-impl.h>
  26
  27 namespace Dali
  28 {
  29 namespace Toolkit
  30 {
  31 namespace Text
  32 {
  33 /**
  34  * @brief View provides an interface between the Text layout engine and rendering back-end.
  35  */
  36 class View : public ViewInterface
  37 {
  38 public:
  39   /**
  40    * @brief Create a new instance of a View.
  41    */
  42   View();
  43
  44   /**
  45    * @brief Virtual destructor.
  46    */
  47   virtual ~View();
  48
  49   /**
  50    * @brief Set the visual model.
  51    *
  52    * @param[in] visualModel The visual model used by the View.
  53    */
  54   void SetVisualModel(VisualModelPtr visualModel);
  55
  56   /**
  57    * @brief Set the logical model.
  58    *
  59    * @param[in] logicalModel The logical model used by the View.
  60    */
  61   void SetLogicalModel(LogicalModelPtr logicalModel);
  62
  63   /**
  64    * @copydoc Dali::Toolkit::Text::ViewInterface::GetControlSize()
  65    */
  66   const Vector2& GetControlSize() const override;
  67
  68   /**
  69    * @copydoc Dali::Toolkit::Text::ViewInterface::GetLayoutSize()
  70    */
  71   const Vector2& GetLayoutSize() const override;
  72
  73   /**
  74    * @copydoc Dali::Toolkit::Text::ViewInterface::GetNumberOfGlyphs()
  75    */
  76   Length GetNumberOfGlyphs() const override;
  77
  78   /**
  79    * @copydoc Dali::Toolkit::Text::ViewInterface::GetGlyphs()
  80    */
  81   virtual Length GetGlyphs(GlyphInfo* glyphs,
  82                            Vector2*   glyphPositions,
  83                            float&     minLineOffset,
  84                            GlyphIndex glyphIndex,
  85                            Length     numberOfGlyphs) const;
  86
  87   /**
  88    * @copydoc Dali::Toolkit::Text::ViewInterface::GetColors()
  89    */
  90   const Vector4* GetColors() const override;
  91
  92   /**
  93    * @copydoc Dali::Toolkit::Text::ViewInterface::GetColorIndices()
  94    */
  95   const ColorIndex* GetColorIndices() const override;
  96
  97   /**
  98    * @copydoc Dali::Toolkit::Text::ViewInterface::GetBackgroundColors()
  99    */
 100   const Vector4* GetBackgroundColors() const override;
 101
 102   /**
 103    * @copydoc Dali::Toolkit::Text::ViewInterface::GetBackgroundColorIndices()
 104    */
 105   const ColorIndex* GetBackgroundColorIndices() const override;
 106
 107   /**
 108    * @copydoc Dali::Toolkit::Text::ViewInterface::IsMarkupBackgroundColorSet()
 109    */
 110   bool IsMarkupBackgroundColorSet() const;
 111
 112   /**
 113    * @copydoc Dali::Toolkit::Text::ViewInterface::GetTextColor()
 114    */
 115   const Vector4& GetTextColor() const override;
 116
 117   /**
 118    * @copydoc Dali::Toolkit::Text::ViewInterface::GetShadowOffset()
 119    */
 120   const Vector2& GetShadowOffset() const override;
 121
 122   /**
 123    * @copydoc Dali::Toolkit::Text::ViewInterface::GetShadowColor()
 124    */
 125   const Vector4& GetShadowColor() const override;
 126
 127   /**
 128    * @copydoc Dali::Toolkit::Text::ViewInterface::GetUnderlineColor()
 129    */
 130   const Vector4& GetUnderlineColor() const override;
 131
 132   /**
 133    * @copydoc Dali::Toolkit::Text::ViewInterface::IsUnderlineEnabled()
 134    */
 135   bool IsUnderlineEnabled() const override;
 136
 137   /**
 138    * @copydoc Dali::Toolkit::Text::ViewInterface::IsMarkupUnderlineSet()
 139    */
 140   bool IsMarkupUnderlineSet() const;
 141
 142   /**
 143   * @copydoc Dali::Toolkit::Text::ViewInterface::GetHyphens()
 144   */
 145   const GlyphInfo* GetHyphens() const override;
 146
 147   /**
 148   * @copydoc Dali::Toolkit::Text::ViewInterface::GetHyphens()
 149   */
 150   const Length* GetHyphenIndices() const override;
 151
 152   /**
 153   * @copydoc Dali::Toolkit::Text::ViewInterface::GetHyphens()
 154   */
 155   Length GetHyphensCount() const override;
 156
 157   /**
 158    * @copydoc Dali::Toolkit::Text::ViewInterface::GetUnderlineHeight()
 159    */
 160   float GetUnderlineHeight() const override;
 161
 162   /**
 163    * @copydoc Dali::Toolkit::Text::ViewInterface::GetUnderlineType()
 164    */
 165   Text::Underline::Type GetUnderlineType() const override;
 166
 167   /**
 168    * @copydoc Dali::Toolkit::Text::ViewInterface::GetDashedUnderlineWidth()
 169    */
 170   float GetDashedUnderlineWidth() const override;
 171
 172   /**
 173    * @copydoc Dali::Toolkit::Text::ViewInterface::GetDashedUnderlineGap()
 174    */
 175   float GetDashedUnderlineGap() const override;
 176
 177   /**
 178    * @copydoc Dali::Toolkit::Text::ViewInterface::GetNumberOfUnderlineRuns()
 179    */
 180   Length GetNumberOfUnderlineRuns() const override;
 181
 182   /**
 183    * @copydoc Dali::Toolkit::Text::ViewInterface::GetUnderlineRuns()
 184    */
 185   virtual void GetUnderlineRuns(UnderlinedGlyphRun* underlineRuns,
 186                                 UnderlineRunIndex   index,
 187                                 Length              numberOfRuns) const;
 188
 189   /**
 190    * @copydoc Dali::Toolkit::Text::ViewInterface::GetOutlineColor()
 191    */
 192   const Vector4& GetOutlineColor() const override;
 193
 194   /**
 195    * @copydoc Dali::Toolkit::Text::ViewInterface::GetOutlineWidth()
 196    */
 197   uint16_t GetOutlineWidth() const override;
 198
 199   /**
 200   * @copydoc Dali::Toolkit::Text::ViewInterface::GetEllipsisPosition()
 201   */
 202   DevelText::EllipsisPosition::Type GetEllipsisPosition() const override;
 203
 204   /**
 205    * @copydoc Dali::Toolkit::Text::ViewInterface::IsTextElideEnabled()
 206    */
 207   bool IsTextElideEnabled() const override;
 208
 209   /**
 210    * @copydoc Dali::Toolkit::Text::ViewInterface::GetStartIndexOfElidedGlyphs()
 211    */
 212   GlyphIndex GetStartIndexOfElidedGlyphs() const override;
 213
 214   /**
 215    * @copydoc Dali::Toolkit::Text::ViewInterface::GetEndIndexOfElidedGlyphs()
 216    */
 217   GlyphIndex GetEndIndexOfElidedGlyphs() const override;
 218
 219   /**
 220    * @copydoc Dali::Toolkit::Text::ViewInterface::GetFirstMiddleIndexOfElidedGlyphs()
 221    */
 222   GlyphIndex GetFirstMiddleIndexOfElidedGlyphs() const override;
 223
 224   /**
 225    * @copydoc Dali::Toolkit::Text::ViewInterface::GetSecondMiddleIndexOfElidedGlyphs()
 226    */
 227   GlyphIndex GetSecondMiddleIndexOfElidedGlyphs() const override;
 228
 229   /**
 230    * @copydoc Dali::Toolkit::Text::ViewInterface::GetStrikethroughColor()
 231    */
 232   const Vector4& GetStrikethroughColor() const override;
 233
 234   /**
 235    * @copydoc Dali::Toolkit::Text::ViewInterface::IsStrikethroughEnabled()
 236    */
 237   bool IsStrikethroughEnabled() const override;
 238
 239   /**
 240    * @copydoc Dali::Toolkit::Text::ViewInterface::IsMarkupStrikethroughSet()
 241    */
 242   bool IsMarkupStrikethroughSet() const;
 243
 244   /**
 245    * @copydoc Dali::Toolkit::Text::ViewInterface::GetStrikethroughHeight()
 246    */
 247   float GetStrikethroughHeight() const override;
 248
 249   /**
 250    * @copydoc Dali::Toolkit::Text::ViewInterface::GetNumberOfStrikethroughRuns()
 251    */
 252   Length GetNumberOfStrikethroughRuns() const;
 253
 254   /**
 255    * @copydoc Dali::Toolkit::Text::ViewInterface::GetStrikethroughRuns()
 256    */
 257   void GetStrikethroughRuns(StrikethroughGlyphRun* strikethroughRuns,
 258                             StrikethroughRunIndex  index,
 259                             Length                 numberOfRuns) const;
 260
 261   /**
 262    * @copydoc Dali::Toolkit::Text::ViewInterface::GetNumberOfBoundedParagraphRuns()
 263    */
 264   virtual Length GetNumberOfBoundedParagraphRuns() const;
 265
 266   /**
 267    * @copydoc Dali::Toolkit::Text::ViewInterface::GetBoundedParagraphRuns()
 268    */
 269   virtual const Vector<BoundedParagraphRun>& GetBoundedParagraphRuns() const;
 270
 271   /**
 272    * @copydoc Dali::Toolkit::Text::ViewInterface::GetNumberOfCharacterSpacingGlyphRuns()
 273    */
 274   Length GetNumberOfCharacterSpacingGlyphRuns() const override;
 275
 276   /**
 277    * @copydoc Dali::Toolkit::Text::ViewInterface::GetCharacterSpacingGlyphRuns()
 278    */
 279   const Vector<CharacterSpacingGlyphRun>& GetCharacterSpacingGlyphRuns() const override;
 280
 281   /**
 282    * @copydoc Dali::Toolkit::Text::ViewInterface::GetCharacterSpacing()
 283    */
 284   float GetCharacterSpacing() const override;
 285
 286   /**
 287    * @copydoc Dali::Toolkit::Text::ViewInterface::GetTextBuffer()
 288    */
 289   const Character* GetTextBuffer() const override;
 290
 291   /**
 292    * @copydoc Dali::Toolkit::Text::ViewInterface::GetGlyphsToCharacters()
 293    */
 294   const Vector<CharacterIndex>& GetGlyphsToCharacters() const override;
 295
 296 private:
 297   // Undefined
 298   View(const View& handle);
 299
 300   // Undefined
 301   View& operator=(const View& handle);
 302
 303 private:
 304   struct Impl;
 305   Impl* mImpl;
 306 };
 307 } // namespace Text
 308
 309 } // namespace Toolkit
 310
 311 } // namespace Dali
 312
 313 #endif // DALI_TOOLKIT_TEXT_VIEW_H