[LayoutNG] Initial letter-spacing and word-spacing support

third_party/WebKit/Source/platform/fonts/shaping/ShapeResult.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 28 matching lines @@
 #include "platform/wtf/HashSet.h"
 #include "platform/wtf/Noncopyable.h"
 #include "platform/wtf/RefCounted.h"
 #include "platform/wtf/Vector.h"
 
 struct hb_buffer_t;
 
 namespace blink {
 
 class Font;
+template <typename TextContainerType>
 class ShapeResultSpacing;
 class SimpleFontData;
 class TextRun;
 
 class PLATFORM_EXPORT ShapeResult : public RefCounted<ShapeResult> {
  public:
   static PassRefPtr<ShapeResult> Create(const Font* font,
                                         unsigned num_characters,
                                         TextDirection direction) {
     return AdoptRef(new ShapeResult(font, num_characters, direction));
@@ skipping 24 matching lines @@
 
   unsigned OffsetForPosition(float target_x, bool include_partial_glyphs) const;
   float PositionForOffset(unsigned offset) const;
   LayoutUnit SnappedStartPositionForOffset(unsigned offset) const {
     return LayoutUnit::FromFloatFloor(PositionForOffset(offset));
   }
   LayoutUnit SnappedEndPositionForOffset(unsigned offset) const {
     return LayoutUnit::FromFloatCeil(PositionForOffset(offset));
   }
 
-  PassRefPtr<ShapeResult> ApplySpacingToCopy(ShapeResultSpacing&,
+  void ApplySpacing(ShapeResultSpacing<StringView>&,
+                    const StringView&,
+                    TextDirection);
+  PassRefPtr<ShapeResult> ApplySpacingToCopy(ShapeResultSpacing<TextRun>&,
                                              const TextRun&) const;
 
   void CopyRange(unsigned start, unsigned end, ShapeResult*) const;
 
  protected:
   struct RunInfo;
 
   ShapeResult(const Font*, unsigned num_characters, TextDirection);
   ShapeResult(const ShapeResult&);
 
   static PassRefPtr<ShapeResult> Create(const ShapeResult& other) {
     return AdoptRef(new ShapeResult(other));
   }
 
-  void ApplySpacing(ShapeResultSpacing&, const TextRun&);
+  template <typename TextContainerType>
+  void ApplySpacing(ShapeResultSpacing<TextContainerType>&,
+                    const TextContainerType&,
+                    bool is_rtl);
   void InsertRun(std::unique_ptr<ShapeResult::RunInfo>,
                  unsigned start_glyph,
                  unsigned num_glyphs,
                  hb_buffer_t*);
 
   float width_;
   FloatRect glyph_bounding_box_;
   Vector<std::unique_ptr<RunInfo>> runs_;
   RefPtr<SimpleFontData> primary_font_;
 
   unsigned num_characters_;
   unsigned num_glyphs_ : 30;
 
   // Overall direction for the TextRun, dictates which order each individual
   // sub run (represented by RunInfo structs in the m_runs vector) can have a
   // different text direction.
   unsigned direction_ : 1;
 
   // Tracks whether any runs contain glyphs with a y-offset != 0.
   unsigned has_vertical_offsets_ : 1;
 
   friend class HarfBuzzShaper;
   friend class ShapeResultBuffer;
   friend class ShapeResultBloberizer;
 };
 
 }  // namespace blink
 
 #endif  // ShapeResult_h