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1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef CORE_FXGE_CFX_UNICODEENCODING_H_
8 #define CORE_FXGE_CFX_UNICODEENCODING_H_
9 
10 #include "core/fxge/fx_font.h"
11 
12 #define ENCODING_INTERNAL 0
13 #define ENCODING_UNICODE 1
14 
15 #ifdef PDF_ENABLE_XFA
16 #define FXFM_ENC_TAG(a, b, c, d)                                          \
17   (((uint32_t)(a) << 24) | ((uint32_t)(b) << 16) | ((uint32_t)(c) << 8) | \
18    (uint32_t)(d))
19 #define FXFM_ENCODING_NONE FXFM_ENC_TAG(0, 0, 0, 0)
20 #define FXFM_ENCODING_MS_SYMBOL FXFM_ENC_TAG('s', 'y', 'm', 'b')
21 #define FXFM_ENCODING_UNICODE FXFM_ENC_TAG('u', 'n', 'i', 'c')
22 #define FXFM_ENCODING_MS_SJIS FXFM_ENC_TAG('s', 'j', 'i', 's')
23 #define FXFM_ENCODING_MS_GB2312 FXFM_ENC_TAG('g', 'b', ' ', ' ')
24 #define FXFM_ENCODING_MS_BIG5 FXFM_ENC_TAG('b', 'i', 'g', '5')
25 #define FXFM_ENCODING_MS_WANSUNG FXFM_ENC_TAG('w', 'a', 'n', 's')
26 #define FXFM_ENCODING_MS_JOHAB FXFM_ENC_TAG('j', 'o', 'h', 'a')
27 #define FXFM_ENCODING_ADOBE_STANDARD FXFM_ENC_TAG('A', 'D', 'O', 'B')
28 #define FXFM_ENCODING_ADOBE_EXPERT FXFM_ENC_TAG('A', 'D', 'B', 'E')
29 #define FXFM_ENCODING_ADOBE_CUSTOM FXFM_ENC_TAG('A', 'D', 'B', 'C')
30 #define FXFM_ENCODING_ADOBE_LATIN_1 FXFM_ENC_TAG('l', 'a', 't', '1')
31 #define FXFM_ENCODING_OLD_LATIN_2 FXFM_ENC_TAG('l', 'a', 't', '2')
32 #define FXFM_ENCODING_APPLE_ROMAN FXFM_ENC_TAG('a', 'r', 'm', 'n')
33 #endif  // PDF_ENABLE_XFA
34 
35 class CFX_UnicodeEncoding {
36  public:
37   explicit CFX_UnicodeEncoding(CFX_Font* pFont);
38   virtual ~CFX_UnicodeEncoding();
39 
40   virtual uint32_t GlyphFromCharCode(uint32_t charcode);
41 
42  protected:
43   CFX_Font* m_pFont;  // Unowned, not nullptr.
44 };
45 
46 #endif  // CORE_FXGE_CFX_UNICODEENCODING_H_
47