Refactor fx_font part 3

core/fxge/include/fx_font.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef CORE_FXGE_INCLUDE_FX_FONT_H_
 #define CORE_FXGE_INCLUDE_FX_FONT_H_
 
 #include <map>
@@ skipping 56 matching lines @@
 #define CHARSET_FLAG_SYMBOL 2
 #define CHARSET_FLAG_SHIFTJIS 4
 #define CHARSET_FLAG_BIG5 8
 #define CHARSET_FLAG_GB 16
 #define CHARSET_FLAG_KOREAN 32
 
 #define GET_TT_SHORT(w) (uint16_t)(((w)[0] << 8) | (w)[1])
 #define GET_TT_LONG(w) \
   (uint32_t)(((w)[0] << 24) | ((w)[1] << 16) | ((w)[2] << 8) | (w)[3])
 
+// Sets the given transform on the font, and resets it to the identity when it
+// goes out of scope.
+class ScopedFontTransform {
+ public:
+  ScopedFontTransform(FT_Face face, FXFT_Matrix* matrix);
+  ~ScopedFontTransform();
+
+ private:
+  FT_Face m_Face;
+};
+
 class CFX_Font {
  public:
   CFX_Font();
   ~CFX_Font();
 
   void LoadSubst(const CFX_ByteString& face_name,
                  FX_BOOL bTrueType,
                  uint32_t flags,
                  int weight,
                  int italic_angle,
@@ skipping 38 matching lines @@
   uint8_t* GetSubData() const { return m_pGsubData; }
   void SetSubData(uint8_t* data) { m_pGsubData = data; }
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
   void* GetPlatformFont() const { return m_pPlatformFont; }
   void SetPlatformFont(void* font) { m_pPlatformFont = font; }
 #endif
   uint8_t* GetFontData() const { return m_pFontData; }
   uint32_t GetSize() const { return m_dwSize; }
   void AdjustMMParams(int glyph_index, int width, int weight);
 
+  static const size_t kAngleSkewArraySize = 30;
+  static const char s_AngleSkew[kAngleSkewArraySize];
+  static const size_t kWeightPowArraySize = 100;
+  static const uint8_t s_WeightPow[kWeightPowArraySize];
+  static const uint8_t s_WeightPow_11[kWeightPowArraySize];
+  static const uint8_t s_WeightPow_SHIFTJIS[kWeightPowArraySize];
+
 #ifdef PDF_ENABLE_XFA
  protected:
   CFX_BinaryBuf m_OtfFontData;
   FX_BOOL m_bLogic;
   void* m_pOwnedStream;
 #endif  // PDF_ENABLE_XFA
 
  private:
   void ReleasePlatformResource();
   void DeleteFace();
@@ skipping 91 matching lines @@
   uint32_t m_nCount;
 };
 
 class CFX_GlyphBitmap {
  public:
   int m_Top;
   int m_Left;
   CFX_DIBitmap m_Bitmap;
 };
 
-class CFX_FaceCache {
- public:
-  explicit CFX_FaceCache(FXFT_Face face);
-  ~CFX_FaceCache();
-  const CFX_GlyphBitmap* LoadGlyphBitmap(CFX_Font* pFont,
-                                         uint32_t glyph_index,
-                                         FX_BOOL bFontStyle,
-                                         const CFX_Matrix* pMatrix,
-                                         int dest_width,
-                                         int anti_alias,
-                                         int& text_flags);
-  const CFX_PathData* LoadGlyphPath(CFX_Font* pFont,
-                                    uint32_t glyph_index,
-                                    int dest_width);
-
-#ifdef _SKIA_SUPPORT_
-  CFX_TypeFace* GetDeviceCache(CFX_Font* pFont);
-#endif
-
- private:
-  CFX_GlyphBitmap* RenderGlyph(CFX_Font* pFont,
-                               uint32_t glyph_index,
-                               FX_BOOL bFontStyle,
-                               const CFX_Matrix* pMatrix,
-                               int dest_width,
-                               int anti_alias);
-  CFX_GlyphBitmap* RenderGlyph_Nativetext(CFX_Font* pFont,
-                                          uint32_t glyph_index,
-                                          const CFX_Matrix* pMatrix,
-                                          int dest_width,
-                                          int anti_alias);
-  CFX_GlyphBitmap* LookUpGlyphBitmap(CFX_Font* pFont,
-                                     const CFX_Matrix* pMatrix,
-                                     const CFX_ByteString& FaceGlyphsKey,
-                                     uint32_t glyph_index,
-                                     FX_BOOL bFontStyle,
-                                     int dest_width,
-                                     int anti_alias);
-  void InitPlatform();
-  void DestroyPlatform();
-
-  FXFT_Face const m_Face;
-  std::map<CFX_ByteString, CFX_SizeGlyphCache*> m_SizeMap;
-  std::map<uint32_t, CFX_PathData*> m_PathMap;
-  CFX_DIBitmap* m_pBitmap;
-#ifdef _SKIA_SUPPORT_
-  CFX_TypeFace* m_pTypeface;
-#endif
-};
-
 struct FXTEXT_GLYPHPOS {
   const CFX_GlyphBitmap* m_pGlyph;
   int m_OriginX;
   int m_OriginY;
   FX_FLOAT m_fOriginX;
   FX_FLOAT m_fOriginY;
 };
 
 FX_RECT FXGE_GetGlyphsBBox(const std::vector<FXTEXT_GLYPHPOS>& glyphs,
                            int anti_alias,
                            FX_FLOAT retinaScaleX = 1.0f,
                            FX_FLOAT retinaScaleY = 1.0f);
 
 CFX_ByteString GetNameFromTT(const uint8_t* name_table,
                              uint32_t name_table_size,
                              uint32_t name);
 
 int PDF_GetStandardFontName(CFX_ByteString* name);
 
 #endif  // CORE_FXGE_INCLUDE_FX_FONT_H_