Move core/fxge/include to core/fxge

BUG=pdfium:611

Review-Url: https://codereview.chromium.org/2377393002

1 files changed, 248 insertions, 0 deletions

diff --git a/core/fxge/fx_font.h b/core/fxge/fx_font.h
new file mode 100644
index 0000000000..8dda12af50
--- /dev/null
+++ b/core/fxge/fx_font.h
@@ -0,0 +1,248 @@
+// 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_FX_FONT_H_
+#define CORE_FXGE_FX_FONT_H_
+
+#include <memory>
+#include <vector>
+
+#include "core/fxcrt/fx_system.h"
+#include "core/fxge/cfx_substfont.h"
+#include "core/fxge/fx_dib.h"
+#include "core/fxge/fx_freetype.h"
+
+typedef struct FT_FaceRec_* FXFT_Face;
+typedef void* FXFT_Library;
+
+class CFX_FaceCache;
+class CFX_GlyphBitmap;
+class CFX_PathData;
+class CFX_SizeGlyphCache;
+
+#ifdef _SKIA_SUPPORT_
+class SkTypeface;
+
+using CFX_TypeFace = SkTypeface;
+#endif
+
+/* Character sets for the font */
+#define FXFONT_ANSI_CHARSET 0
+#define FXFONT_DEFAULT_CHARSET 1
+#define FXFONT_SYMBOL_CHARSET 2
+#define FXFONT_SHIFTJIS_CHARSET 128
+#define FXFONT_HANGUL_CHARSET 129
+#define FXFONT_GB2312_CHARSET 134
+#define FXFONT_CHINESEBIG5_CHARSET 136
+#define FXFONT_THAI_CHARSET 222
+#define FXFONT_EASTEUROPE_CHARSET 238
+#define FXFONT_RUSSIAN_CHARSET 204
+#define FXFONT_GREEK_CHARSET 161
+#define FXFONT_TURKISH_CHARSET 162
+#define FXFONT_HEBREW_CHARSET 177
+#define FXFONT_ARABIC_CHARSET 178
+#define FXFONT_BALTIC_CHARSET 186
+#define FXFONT_JOHAB_CHARSET 130
+#define FXFONT_VIETNAMESE_CHARSET 163
+
+/* Font pitch and family flags */
+#define FXFONT_FF_FIXEDPITCH 1
+#define FXFONT_FF_ROMAN (1 << 4)
+#define FXFONT_FF_SCRIPT (4 << 4)
+
+/* Typical weight values */
+#define FXFONT_FW_NORMAL 400
+#define FXFONT_FW_BOLD 700
+
+/* Font styles */
+#define FXFONT_FIXED_PITCH 0x01
+#define FXFONT_SERIF 0x02
+#define FXFONT_SYMBOLIC 0x04
+#define FXFONT_SCRIPT 0x08
+#define FXFONT_ITALIC 0x40
+#define FXFONT_BOLD 0x40000
+#define FXFONT_USEEXTERNATTR 0x80000
+#define FXFONT_CIDFONT 0x100000
+#ifdef PDF_ENABLE_XFA
+#define FXFONT_EXACTMATCH 0x80000000
+#endif  // PDF_ENABLE_XFA
+
+#define CHARSET_FLAG_ANSI 1
+#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,
+                 int CharsetCP,
+                 bool bVertical);
+
+  FX_BOOL LoadEmbedded(const uint8_t* data, uint32_t size);
+  FXFT_Face GetFace() const { return m_Face; }
+  CFX_SubstFont* GetSubstFont() const { return m_pSubstFont.get(); }
+
+#ifdef PDF_ENABLE_XFA
+  FX_BOOL LoadFile(IFX_FileRead* pFile,
+                   int nFaceIndex = 0,
+                   int* pFaceCount = nullptr);
+
+  FX_BOOL LoadClone(const CFX_Font* pFont);
+  void SetFace(FXFT_Face face);
+  void SetSubstFont(std::unique_ptr<CFX_SubstFont> subst) {
+    m_pSubstFont = std::move(subst);
+  }
+#endif  // PDF_ENABLE_XFA
+
+  const CFX_GlyphBitmap* LoadGlyphBitmap(uint32_t glyph_index,
+                                         FX_BOOL bFontStyle,
+                                         const CFX_Matrix* pMatrix,
+                                         int dest_width,
+                                         int anti_alias,
+                                         int& text_flags) const;
+  const CFX_PathData* LoadGlyphPath(uint32_t glyph_index, int dest_width) const;
+
+#ifdef _SKIA_SUPPORT_
+  CFX_TypeFace* GetDeviceCache() const;
+#endif
+
+  int GetGlyphWidth(uint32_t glyph_index);
+  int GetAscent() const;
+  int GetDescent() const;
+  FX_BOOL GetGlyphBBox(uint32_t glyph_index, FX_RECT& bbox);
+  bool IsItalic() const;
+  bool IsBold() const;
+  bool IsFixedWidth() const;
+  bool IsVertical() const { return m_bVertical; }
+  CFX_ByteString GetPsName() const;
+  CFX_ByteString GetFamilyName() const;
+  CFX_ByteString GetFaceName() const;
+  bool IsTTFont() const;
+  FX_BOOL GetBBox(FX_RECT& bbox);
+  int GetHeight() const;
+  int GetULPos() const;
+  int GetULthickness() const;
+  int GetMaxAdvanceWidth() const;
+  FX_BOOL IsEmbedded() const { return m_bEmbedded; }
+  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) const;
+
+  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;
+  bool m_bShallowCopy;
+  FXFT_StreamRec* m_pOwnedStream;
+#endif  // PDF_ENABLE_XFA
+
+ private:
+  friend class CFX_FaceCache;
+  CFX_PathData* LoadGlyphPathImpl(uint32_t glyph_index,
+                                  int dest_width = 0) const;
+
+ private:
+  CFX_FaceCache* GetFaceCache() const;
+
+  void ReleasePlatformResource();
+  void DeleteFace();
+
+  void ClearFaceCache();
+
+  FXFT_Face m_Face;
+  mutable CFX_FaceCache* m_FaceCache;  // not owned.
+  std::unique_ptr<CFX_SubstFont> m_pSubstFont;
+  std::vector<uint8_t> m_pFontDataAllocation;
+  uint8_t* m_pFontData;
+  uint8_t* m_pGsubData;
+  uint32_t m_dwSize;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+  void* m_pPlatformFont;
+#endif
+  bool m_bEmbedded;
+  bool m_bVertical;
+};
+
+class CFX_FontFaceInfo {
+ public:
+  CFX_FontFaceInfo(CFX_ByteString filePath,
+                   CFX_ByteString faceName,
+                   CFX_ByteString fontTables,
+                   uint32_t fontOffset,
+                   uint32_t fileSize);
+
+  const CFX_ByteString m_FilePath;
+  const CFX_ByteString m_FaceName;
+  const CFX_ByteString m_FontTables;
+  const uint32_t m_FontOffset;
+  const uint32_t m_FileSize;
+  uint32_t m_Styles;
+  uint32_t m_Charsets;
+};
+
+class CFX_GlyphBitmap {
+ public:
+  int m_Top;
+  int m_Left;
+  CFX_DIBitmap m_Bitmap;
+};
+
+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_FX_FONT_H_