| // 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 |
| |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| |
| #include <memory> |
| #include <set> |
| #include <utility> |
| #include <vector> |
| |
| #include "core/fpdfapi/cpdf_modulemgr.h" |
| #include "core/fpdfapi/font/cpdf_fontencoding.h" |
| #include "core/fpdfapi/page/cpdf_docpagedata.h" |
| #include "core/fpdfapi/page/cpdf_iccprofile.h" |
| #include "core/fpdfapi/page/cpdf_pagemodule.h" |
| #include "core/fpdfapi/parser/cpdf_array.h" |
| #include "core/fpdfapi/parser/cpdf_dictionary.h" |
| #include "core/fpdfapi/parser/cpdf_linearized_header.h" |
| #include "core/fpdfapi/parser/cpdf_name.h" |
| #include "core/fpdfapi/parser/cpdf_number.h" |
| #include "core/fpdfapi/parser/cpdf_parser.h" |
| #include "core/fpdfapi/parser/cpdf_reference.h" |
| #include "core/fpdfapi/parser/cpdf_stream.h" |
| #include "core/fpdfapi/parser/cpdf_string.h" |
| #include "core/fpdfapi/render/cpdf_dibsource.h" |
| #include "core/fpdfapi/render/cpdf_docrenderdata.h" |
| #include "core/fxcodec/JBig2_DocumentContext.h" |
| #include "core/fxcrt/fx_codepage.h" |
| #include "core/fxge/cfx_unicodeencoding.h" |
| #include "core/fxge/fx_font.h" |
| #include "third_party/base/ptr_util.h" |
| #include "third_party/base/stl_util.h" |
| |
| namespace { |
| |
| const int FX_MAX_PAGE_LEVEL = 1024; |
| |
| const uint16_t g_FX_MSDOSThaiUnicodes[128] = { |
| 0x20AC, 0x0000, 0x0000, 0x0000, 0x0000, 0x2026, 0x0000, 0x0000, 0x0000, |
| 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x2018, |
| 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x0000, 0x0000, 0x0000, |
| 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00A0, 0x0E01, 0x0E02, 0x0E03, |
| 0x0E04, 0x0E05, 0x0E06, 0x0E07, 0x0E08, 0x0E09, 0x0E0A, 0x0E0B, 0x0E0C, |
| 0x0E0D, 0x0E0E, 0x0E0F, 0x0E10, 0x0E11, 0x0E12, 0x0E13, 0x0E14, 0x0E15, |
| 0x0E16, 0x0E17, 0x0E18, 0x0E19, 0x0E1A, 0x0E1B, 0x0E1C, 0x0E1D, 0x0E1E, |
| 0x0E1F, 0x0E20, 0x0E21, 0x0E22, 0x0E23, 0x0E24, 0x0E25, 0x0E26, 0x0E27, |
| 0x0E28, 0x0E29, 0x0E2A, 0x0E2B, 0x0E2C, 0x0E2D, 0x0E2E, 0x0E2F, 0x0E30, |
| 0x0E31, 0x0E32, 0x0E33, 0x0E34, 0x0E35, 0x0E36, 0x0E37, 0x0E38, 0x0E39, |
| 0x0E3A, 0x0000, 0x0000, 0x0000, 0x0000, 0x0E3F, 0x0E40, 0x0E41, 0x0E42, |
| 0x0E43, 0x0E44, 0x0E45, 0x0E46, 0x0E47, 0x0E48, 0x0E49, 0x0E4A, 0x0E4B, |
| 0x0E4C, 0x0E4D, 0x0E4E, 0x0E4F, 0x0E50, 0x0E51, 0x0E52, 0x0E53, 0x0E54, |
| 0x0E55, 0x0E56, 0x0E57, 0x0E58, 0x0E59, 0x0E5A, 0x0E5B, 0x0000, 0x0000, |
| 0x0000, 0x0000, |
| }; |
| const uint16_t g_FX_MSWinEasternEuropeanUnicodes[128] = { |
| 0x20AC, 0x0000, 0x201A, 0x0000, 0x201E, 0x2026, 0x2020, 0x2021, 0x0000, |
| 0x2030, 0x0160, 0x2039, 0x015A, 0x0164, 0x017D, 0x0179, 0x0000, 0x2018, |
| 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x0000, 0x2122, 0x0161, |
| 0x203A, 0x015B, 0x0165, 0x017E, 0x017A, 0x00A0, 0x02C7, 0x02D8, 0x0141, |
| 0x00A4, 0x0104, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x015E, 0x00AB, 0x00AC, |
| 0x00AD, 0x00AE, 0x017B, 0x00B0, 0x00B1, 0x02DB, 0x0142, 0x00B4, 0x00B5, |
| 0x00B6, 0x00B7, 0x00B8, 0x0105, 0x015F, 0x00BB, 0x013D, 0x02DD, 0x013E, |
| 0x017C, 0x0154, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x0139, 0x0106, 0x00C7, |
| 0x010C, 0x00C9, 0x0118, 0x00CB, 0x011A, 0x00CD, 0x00CE, 0x010E, 0x0110, |
| 0x0143, 0x0147, 0x00D3, 0x00D4, 0x0150, 0x00D6, 0x00D7, 0x0158, 0x016E, |
| 0x00DA, 0x0170, 0x00DC, 0x00DD, 0x0162, 0x00DF, 0x0155, 0x00E1, 0x00E2, |
| 0x0103, 0x00E4, 0x013A, 0x0107, 0x00E7, 0x010D, 0x00E9, 0x0119, 0x00EB, |
| 0x011B, 0x00ED, 0x00EE, 0x010F, 0x0111, 0x0144, 0x0148, 0x00F3, 0x00F4, |
| 0x0151, 0x00F6, 0x00F7, 0x0159, 0x016F, 0x00FA, 0x0171, 0x00FC, 0x00FD, |
| 0x0163, 0x02D9, |
| }; |
| const uint16_t g_FX_MSWinCyrillicUnicodes[128] = { |
| 0x0402, 0x0403, 0x201A, 0x0453, 0x201E, 0x2026, 0x2020, 0x2021, 0x20AC, |
| 0x2030, 0x0409, 0x2039, 0x040A, 0x040C, 0x040B, 0x040F, 0x0452, 0x2018, |
| 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x0000, 0x2122, 0x0459, |
| 0x203A, 0x045A, 0x045C, 0x045B, 0x045F, 0x00A0, 0x040E, 0x045E, 0x0408, |
| 0x00A4, 0x0490, 0x00A6, 0x00A7, 0x0401, 0x00A9, 0x0404, 0x00AB, 0x00AC, |
| 0x00AD, 0x00AE, 0x0407, 0x00B0, 0x00B1, 0x0406, 0x0456, 0x0491, 0x00B5, |
| 0x00B6, 0x00B7, 0x0451, 0x2116, 0x0454, 0x00BB, 0x0458, 0x0405, 0x0455, |
| 0x0457, 0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417, |
| 0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F, 0x0420, |
| 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427, 0x0428, 0x0429, |
| 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F, 0x0430, 0x0431, 0x0432, |
| 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 0x0438, 0x0439, 0x043A, 0x043B, |
| 0x043C, 0x043D, 0x043E, 0x043F, 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, |
| 0x0445, 0x0446, 0x0447, 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, |
| 0x044E, 0x044F, |
| }; |
| const uint16_t g_FX_MSWinGreekUnicodes[128] = { |
| 0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021, 0x0000, |
| 0x2030, 0x0000, 0x2039, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x2018, |
| 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x0000, 0x2122, 0x0000, |
| 0x203A, 0x0000, 0x0000, 0x0000, 0x0000, 0x00A0, 0x0385, 0x0386, 0x00A3, |
| 0x00A4, 0x00A5, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x0000, 0x00AB, 0x00AC, |
| 0x00AD, 0x00AE, 0x2015, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x0384, 0x00B5, |
| 0x00B6, 0x00B7, 0x0388, 0x0389, 0x038A, 0x00BB, 0x038C, 0x00BD, 0x038E, |
| 0x038F, 0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, |
| 0x0398, 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F, 0x03A0, |
| 0x03A1, 0x0000, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9, |
| 0x03AA, 0x03AB, 0x03AC, 0x03AD, 0x03AE, 0x03AF, 0x03B0, 0x03B1, 0x03B2, |
| 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8, 0x03B9, 0x03BA, 0x03BB, |
| 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0, 0x03C1, 0x03C2, 0x03C3, 0x03C4, |
| 0x03C5, 0x03C6, 0x03C7, 0x03C8, 0x03C9, 0x03CA, 0x03CB, 0x03CC, 0x03CD, |
| 0x03CE, 0x0000, |
| }; |
| const uint16_t g_FX_MSWinTurkishUnicodes[128] = { |
| 0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021, 0x02C6, |
| 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x0000, 0x0000, 0x0000, 0x2018, |
| 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x02DC, 0x2122, 0x0161, |
| 0x203A, 0x0153, 0x0000, 0x0000, 0x0178, 0x00A0, 0x00A1, 0x00A2, 0x00A3, |
| 0x00A4, 0x00A5, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, |
| 0x00AD, 0x00AE, 0x00AF, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, |
| 0x00B6, 0x00B7, 0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, |
| 0x00BF, 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7, |
| 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, 0x011E, |
| 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7, 0x00D8, 0x00D9, |
| 0x00DA, 0x00DB, 0x00DC, 0x0130, 0x015E, 0x00DF, 0x00E0, 0x00E1, 0x00E2, |
| 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, |
| 0x00EC, 0x00ED, 0x00EE, 0x00EF, 0x011F, 0x00F1, 0x00F2, 0x00F3, 0x00F4, |
| 0x00F5, 0x00F6, 0x00F7, 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x0131, |
| 0x015F, 0x00FF, |
| }; |
| const uint16_t g_FX_MSWinHebrewUnicodes[128] = { |
| 0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021, 0x02C6, |
| 0x2030, 0x0000, 0x2039, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x2018, |
| 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x02DC, 0x2122, 0x0000, |
| 0x203A, 0x0000, 0x0000, 0x0000, 0x0000, 0x00A0, 0x00A1, 0x00A2, 0x00A3, |
| 0x20AA, 0x00A5, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x00D7, 0x00AB, 0x00AC, |
| 0x00AD, 0x00AE, 0x00AF, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, |
| 0x00B6, 0x00B7, 0x00B8, 0x00B9, 0x00F7, 0x00BB, 0x00BC, 0x00BD, 0x00BE, |
| 0x00BF, 0x05B0, 0x05B1, 0x05B2, 0x05B3, 0x05B4, 0x05B5, 0x05B6, 0x05B7, |
| 0x05B8, 0x05B9, 0x0000, 0x05BB, 0x05BC, 0x05BD, 0x05BE, 0x05BF, 0x05C0, |
| 0x05C1, 0x05C2, 0x05C3, 0x05F0, 0x05F1, 0x05F2, 0x05F3, 0x05F4, 0x0000, |
| 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x05D0, 0x05D1, 0x05D2, |
| 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, 0x05D8, 0x05D9, 0x05DA, 0x05DB, |
| 0x05DC, 0x05DD, 0x05DE, 0x05DF, 0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, |
| 0x05E5, 0x05E6, 0x05E7, 0x05E8, 0x05E9, 0x05EA, 0x0000, 0x0000, 0x200E, |
| 0x200F, 0x0000, |
| }; |
| const uint16_t g_FX_MSWinArabicUnicodes[128] = { |
| 0x20AC, 0x067E, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021, 0x02C6, |
| 0x2030, 0x0679, 0x2039, 0x0152, 0x0686, 0x0698, 0x0688, 0x06AF, 0x2018, |
| 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x06A9, 0x2122, 0x0691, |
| 0x203A, 0x0153, 0x200C, 0x200D, 0x06BA, 0x00A0, 0x060C, 0x00A2, 0x00A3, |
| 0x00A4, 0x00A5, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x06BE, 0x00AB, 0x00AC, |
| 0x00AD, 0x00AE, 0x00AF, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, |
| 0x00B6, 0x00B7, 0x00B8, 0x00B9, 0x061B, 0x00BB, 0x00BC, 0x00BD, 0x00BE, |
| 0x061F, 0x06C1, 0x0621, 0x0622, 0x0623, 0x0624, 0x0625, 0x0626, 0x0627, |
| 0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 0x062D, 0x062E, 0x062F, 0x0630, |
| 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x0636, 0x00D7, 0x0637, 0x0638, |
| 0x0639, 0x063A, 0x0640, 0x0641, 0x0642, 0x0643, 0x00E0, 0x0644, 0x00E2, |
| 0x0645, 0x0646, 0x0647, 0x0648, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, |
| 0x0649, 0x064A, 0x00EE, 0x00EF, 0x064B, 0x064C, 0x064D, 0x064E, 0x00F4, |
| 0x064F, 0x0650, 0x00F7, 0x0651, 0x00F9, 0x0652, 0x00FB, 0x00FC, 0x200E, |
| 0x200F, 0x06D2, |
| }; |
| const uint16_t g_FX_MSWinBalticUnicodes[128] = { |
| 0x20AC, 0x0000, 0x201A, 0x0000, 0x201E, 0x2026, 0x2020, 0x2021, 0x0000, |
| 0x2030, 0x0000, 0x2039, 0x0000, 0x00A8, 0x02C7, 0x00B8, 0x0000, 0x2018, |
| 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x0000, 0x2122, 0x0000, |
| 0x203A, 0x0000, 0x00AF, 0x02DB, 0x0000, 0x00A0, 0x0000, 0x00A2, 0x00A3, |
| 0x00A4, 0x0000, 0x00A6, 0x00A7, 0x00D8, 0x00A9, 0x0156, 0x00AB, 0x00AC, |
| 0x00AD, 0x00AE, 0x00C6, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, |
| 0x00B6, 0x00B7, 0x00F8, 0x00B9, 0x0157, 0x00BB, 0x00BC, 0x00BD, 0x00BE, |
| 0x00E6, 0x0104, 0x012E, 0x0100, 0x0106, 0x00C4, 0x00C5, 0x0118, 0x0112, |
| 0x010C, 0x00C9, 0x0179, 0x0116, 0x0122, 0x0136, 0x012A, 0x013B, 0x0160, |
| 0x0143, 0x0145, 0x00D3, 0x014C, 0x00D5, 0x00D6, 0x00D7, 0x0172, 0x0141, |
| 0x015A, 0x016A, 0x00DC, 0x017B, 0x017D, 0x00DF, 0x0105, 0x012F, 0x0101, |
| 0x0107, 0x00E4, 0x00E5, 0x0119, 0x0113, 0x010D, 0x00E9, 0x017A, 0x0117, |
| 0x0123, 0x0137, 0x012B, 0x013C, 0x0161, 0x0144, 0x0146, 0x00F3, 0x014D, |
| 0x00F5, 0x00F6, 0x00F7, 0x0173, 0x0142, 0x015B, 0x016B, 0x00FC, 0x017C, |
| 0x017E, 0x02D9, |
| }; |
| |
| struct FX_CharsetUnicodes { |
| uint8_t m_Charset; |
| const uint16_t* m_pUnicodes; |
| }; |
| |
| const FX_CharsetUnicodes g_FX_CharsetUnicodes[] = { |
| {FX_CHARSET_Thai, g_FX_MSDOSThaiUnicodes}, |
| {FX_CHARSET_MSWin_EasternEuropean, g_FX_MSWinEasternEuropeanUnicodes}, |
| {FX_CHARSET_MSWin_Cyrillic, g_FX_MSWinCyrillicUnicodes}, |
| {FX_CHARSET_MSWin_Greek, g_FX_MSWinGreekUnicodes}, |
| {FX_CHARSET_MSWin_Turkish, g_FX_MSWinTurkishUnicodes}, |
| {FX_CHARSET_MSWin_Hebrew, g_FX_MSWinHebrewUnicodes}, |
| {FX_CHARSET_MSWin_Arabic, g_FX_MSWinArabicUnicodes}, |
| {FX_CHARSET_MSWin_Baltic, g_FX_MSWinBalticUnicodes}, |
| }; |
| |
| void InsertWidthArrayImpl(int* widths, int size, CPDF_Array* pWidthArray) { |
| int i; |
| for (i = 1; i < size; i++) { |
| if (widths[i] != *widths) |
| break; |
| } |
| if (i == size) { |
| int first = pWidthArray->GetIntegerAt(pWidthArray->GetCount() - 1); |
| pWidthArray->AddNew<CPDF_Number>(first + size - 1); |
| pWidthArray->AddNew<CPDF_Number>(*widths); |
| } else { |
| CPDF_Array* pWidthArray1 = pWidthArray->AddNew<CPDF_Array>(); |
| for (i = 0; i < size; i++) |
| pWidthArray1->AddNew<CPDF_Number>(widths[i]); |
| } |
| FX_Free(widths); |
| } |
| |
| #if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_ |
| void InsertWidthArray(HDC hDC, int start, int end, CPDF_Array* pWidthArray) { |
| int size = end - start + 1; |
| int* widths = FX_Alloc(int, size); |
| GetCharWidth(hDC, start, end, widths); |
| InsertWidthArrayImpl(widths, size, pWidthArray); |
| } |
| |
| ByteString FPDF_GetPSNameFromTT(HDC hDC) { |
| ByteString result; |
| DWORD size = ::GetFontData(hDC, 'eman', 0, nullptr, 0); |
| if (size != GDI_ERROR) { |
| LPBYTE buffer = FX_Alloc(BYTE, size); |
| ::GetFontData(hDC, 'eman', 0, buffer, size); |
| result = GetNameFromTT(buffer, size, 6); |
| FX_Free(buffer); |
| } |
| return result; |
| } |
| #endif // _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_ |
| |
| void InsertWidthArray1(CFX_Font* pFont, |
| CFX_UnicodeEncoding* pEncoding, |
| wchar_t start, |
| wchar_t end, |
| CPDF_Array* pWidthArray) { |
| int size = end - start + 1; |
| int* widths = FX_Alloc(int, size); |
| int i; |
| for (i = 0; i < size; i++) { |
| int glyph_index = pEncoding->GlyphFromCharCode(start + i); |
| widths[i] = pFont->GetGlyphWidth(glyph_index); |
| } |
| InsertWidthArrayImpl(widths, size, pWidthArray); |
| } |
| |
| int CountPages(CPDF_Dictionary* pPages, |
| std::set<CPDF_Dictionary*>* visited_pages) { |
| int count = pPages->GetIntegerFor("Count"); |
| if (count > 0 && count < FPDF_PAGE_MAX_NUM) |
| return count; |
| CPDF_Array* pKidList = pPages->GetArrayFor("Kids"); |
| if (!pKidList) |
| return 0; |
| count = 0; |
| for (size_t i = 0; i < pKidList->GetCount(); i++) { |
| CPDF_Dictionary* pKid = pKidList->GetDictAt(i); |
| if (!pKid || pdfium::ContainsKey(*visited_pages, pKid)) |
| continue; |
| if (pKid->KeyExist("Kids")) { |
| // Use |visited_pages| to help detect circular references of pages. |
| pdfium::ScopedSetInsertion<CPDF_Dictionary*> local_add(visited_pages, |
| pKid); |
| count += CountPages(pKid, visited_pages); |
| } else { |
| // This page is a leaf node. |
| count++; |
| } |
| } |
| pPages->SetNewFor<CPDF_Number>("Count", count); |
| return count; |
| } |
| |
| int CalculateFlags(bool bold, |
| bool italic, |
| bool fixedPitch, |
| bool serif, |
| bool script, |
| bool symbolic) { |
| int flags = 0; |
| if (bold) |
| flags |= FXFONT_BOLD; |
| if (italic) |
| flags |= FXFONT_ITALIC; |
| if (fixedPitch) |
| flags |= FXFONT_FIXED_PITCH; |
| if (serif) |
| flags |= FXFONT_SERIF; |
| if (script) |
| flags |= FXFONT_SCRIPT; |
| if (symbolic) |
| flags |= FXFONT_SYMBOLIC; |
| else |
| flags |= FXFONT_NONSYMBOLIC; |
| return flags; |
| } |
| |
| void ProcessNonbCJK(CPDF_Dictionary* pBaseDict, |
| bool bold, |
| bool italic, |
| ByteString basefont, |
| std::unique_ptr<CPDF_Array> pWidths) { |
| if (bold && italic) |
| basefont += ",BoldItalic"; |
| else if (bold) |
| basefont += ",Bold"; |
| else if (italic) |
| basefont += ",Italic"; |
| pBaseDict->SetNewFor<CPDF_Name>("Subtype", "TrueType"); |
| pBaseDict->SetNewFor<CPDF_Name>("BaseFont", basefont); |
| pBaseDict->SetNewFor<CPDF_Number>("FirstChar", 32); |
| pBaseDict->SetNewFor<CPDF_Number>("LastChar", 255); |
| pBaseDict->SetFor("Widths", std::move(pWidths)); |
| } |
| |
| std::unique_ptr<CPDF_Dictionary> CalculateFontDesc( |
| CPDF_Document* pDoc, |
| ByteString basefont, |
| int flags, |
| int italicangle, |
| int ascend, |
| int descend, |
| std::unique_ptr<CPDF_Array> bbox, |
| int32_t stemV) { |
| auto pFontDesc = |
| pdfium::MakeUnique<CPDF_Dictionary>(pDoc->GetByteStringPool()); |
| pFontDesc->SetNewFor<CPDF_Name>("Type", "FontDescriptor"); |
| pFontDesc->SetNewFor<CPDF_Name>("FontName", basefont); |
| pFontDesc->SetNewFor<CPDF_Number>("Flags", flags); |
| pFontDesc->SetFor("FontBBox", std::move(bbox)); |
| pFontDesc->SetNewFor<CPDF_Number>("ItalicAngle", italicangle); |
| pFontDesc->SetNewFor<CPDF_Number>("Ascent", ascend); |
| pFontDesc->SetNewFor<CPDF_Number>("Descent", descend); |
| pFontDesc->SetNewFor<CPDF_Number>("StemV", stemV); |
| return pFontDesc; |
| } |
| |
| } // namespace |
| |
| CPDF_Document::CPDF_Document(std::unique_ptr<CPDF_Parser> pParser) |
| : CPDF_IndirectObjectHolder(), |
| m_pParser(std::move(pParser)), |
| m_pRootDict(nullptr), |
| m_iNextPageToTraverse(0), |
| m_bReachedMaxPageLevel(false), |
| m_bLinearized(false), |
| m_iFirstPageNo(0), |
| m_dwFirstPageObjNum(0), |
| m_pDocPage(pdfium::MakeUnique<CPDF_DocPageData>(this)), |
| m_pDocRender(pdfium::MakeUnique<CPDF_DocRenderData>(this)) { |
| if (pParser) |
| SetLastObjNum(m_pParser->GetLastObjNum()); |
| } |
| |
| CPDF_Document::~CPDF_Document() { |
| CPDF_ModuleMgr::Get()->GetPageModule()->ClearStockFont(this); |
| } |
| |
| std::unique_ptr<CPDF_Object> CPDF_Document::ParseIndirectObject( |
| uint32_t objnum) { |
| return m_pParser ? m_pParser->ParseIndirectObject(this, objnum) : nullptr; |
| } |
| |
| void CPDF_Document::LoadDocInternal() { |
| SetLastObjNum(m_pParser->GetLastObjNum()); |
| |
| CPDF_Object* pRootObj = GetOrParseIndirectObject(m_pParser->GetRootObjNum()); |
| if (!pRootObj) |
| return; |
| |
| m_pRootDict = pRootObj->GetDict(); |
| if (!m_pRootDict) |
| return; |
| |
| LoadDocumentInfo(); |
| } |
| |
| void CPDF_Document::LoadDocumentInfo() { |
| if (!m_pParser) |
| return; |
| |
| CPDF_Object* pInfoObj = GetOrParseIndirectObject(m_pParser->GetInfoObjNum()); |
| if (pInfoObj) |
| m_pInfoDict = pInfoObj->GetDict(); |
| } |
| |
| void CPDF_Document::LoadDoc() { |
| LoadDocInternal(); |
| LoadPages(); |
| } |
| |
| void CPDF_Document::LoadLinearizedDoc( |
| const CPDF_LinearizedHeader* pLinearizationParams) { |
| m_bLinearized = true; |
| LoadDocInternal(); |
| m_PageList.resize(pLinearizationParams->GetPageCount()); |
| m_iFirstPageNo = pLinearizationParams->GetFirstPageNo(); |
| m_dwFirstPageObjNum = pLinearizationParams->GetFirstPageObjNum(); |
| } |
| |
| void CPDF_Document::LoadPages() { |
| m_PageList.resize(RetrievePageCount()); |
| } |
| |
| CPDF_Dictionary* CPDF_Document::TraversePDFPages(int iPage, |
| int* nPagesToGo, |
| size_t level) { |
| if (*nPagesToGo < 0 || m_bReachedMaxPageLevel) |
| return nullptr; |
| |
| CPDF_Dictionary* pPages = m_pTreeTraversal[level].first; |
| CPDF_Array* pKidList = pPages->GetArrayFor("Kids"); |
| if (!pKidList) { |
| m_pTreeTraversal.pop_back(); |
| if (*nPagesToGo != 1) |
| return nullptr; |
| m_PageList[iPage] = pPages->GetObjNum(); |
| return pPages; |
| } |
| if (level >= FX_MAX_PAGE_LEVEL) { |
| m_pTreeTraversal.pop_back(); |
| m_bReachedMaxPageLevel = true; |
| return nullptr; |
| } |
| CPDF_Dictionary* page = nullptr; |
| for (size_t i = m_pTreeTraversal[level].second; i < pKidList->GetCount(); |
| i++) { |
| if (*nPagesToGo == 0) |
| break; |
| pKidList->ConvertToIndirectObjectAt(i, this); |
| CPDF_Dictionary* pKid = pKidList->GetDictAt(i); |
| if (!pKid) { |
| (*nPagesToGo)--; |
| m_pTreeTraversal[level].second++; |
| continue; |
| } |
| if (pKid == pPages) { |
| m_pTreeTraversal[level].second++; |
| continue; |
| } |
| if (!pKid->KeyExist("Kids")) { |
| m_PageList[iPage - (*nPagesToGo) + 1] = pKid->GetObjNum(); |
| (*nPagesToGo)--; |
| m_pTreeTraversal[level].second++; |
| if (*nPagesToGo == 0) { |
| page = pKid; |
| break; |
| } |
| } else { |
| // If the vector has size level+1, the child is not in yet |
| if (m_pTreeTraversal.size() == level + 1) |
| m_pTreeTraversal.push_back(std::make_pair(pKid, 0)); |
| // Now m_pTreeTraversal[level+1] should exist and be equal to pKid. |
| CPDF_Dictionary* pageKid = TraversePDFPages(iPage, nPagesToGo, level + 1); |
| // Check if child was completely processed, i.e. it popped itself out |
| if (m_pTreeTraversal.size() == level + 1) |
| m_pTreeTraversal[level].second++; |
| // If child did not finish, no pages to go, or max level reached, end |
| if (m_pTreeTraversal.size() != level + 1 || *nPagesToGo == 0 || |
| m_bReachedMaxPageLevel) { |
| page = pageKid; |
| break; |
| } |
| } |
| } |
| if (m_pTreeTraversal[level].second == pKidList->GetCount()) |
| m_pTreeTraversal.pop_back(); |
| return page; |
| } |
| |
| void CPDF_Document::ResetTraversal() { |
| m_iNextPageToTraverse = 0; |
| m_bReachedMaxPageLevel = false; |
| m_pTreeTraversal.clear(); |
| } |
| |
| CPDF_Dictionary* CPDF_Document::GetPagesDict() const { |
| const CPDF_Dictionary* pRoot = GetRoot(); |
| return pRoot ? pRoot->GetDictFor("Pages") : nullptr; |
| } |
| |
| bool CPDF_Document::IsPageLoaded(int iPage) const { |
| return !!m_PageList[iPage]; |
| } |
| |
| CPDF_Dictionary* CPDF_Document::GetPage(int iPage) { |
| if (!pdfium::IndexInBounds(m_PageList, iPage)) |
| return nullptr; |
| |
| if (m_bLinearized && iPage == m_iFirstPageNo) { |
| if (CPDF_Dictionary* pDict = |
| ToDictionary(GetOrParseIndirectObject(m_dwFirstPageObjNum))) { |
| return pDict; |
| } |
| } |
| uint32_t objnum = m_PageList[iPage]; |
| if (objnum) |
| return ToDictionary(GetOrParseIndirectObject(objnum)); |
| |
| CPDF_Dictionary* pPages = GetPagesDict(); |
| if (!pPages) |
| return nullptr; |
| |
| if (m_pTreeTraversal.empty()) { |
| ResetTraversal(); |
| m_pTreeTraversal.push_back(std::make_pair(pPages, 0)); |
| } |
| int nPagesToGo = iPage - m_iNextPageToTraverse + 1; |
| CPDF_Dictionary* pPage = TraversePDFPages(iPage, &nPagesToGo, 0); |
| m_iNextPageToTraverse = iPage + 1; |
| return pPage; |
| } |
| |
| void CPDF_Document::SetPageObjNum(int iPage, uint32_t objNum) { |
| m_PageList[iPage] = objNum; |
| } |
| |
| int CPDF_Document::FindPageIndex(CPDF_Dictionary* pNode, |
| uint32_t* skip_count, |
| uint32_t objnum, |
| int* index, |
| int level) const { |
| if (!pNode->KeyExist("Kids")) { |
| if (objnum == pNode->GetObjNum()) |
| return *index; |
| |
| if (*skip_count) |
| (*skip_count)--; |
| |
| (*index)++; |
| return -1; |
| } |
| |
| CPDF_Array* pKidList = pNode->GetArrayFor("Kids"); |
| if (!pKidList) |
| return -1; |
| |
| if (level >= FX_MAX_PAGE_LEVEL) |
| return -1; |
| |
| size_t count = pNode->GetIntegerFor("Count"); |
| if (count <= *skip_count) { |
| (*skip_count) -= count; |
| (*index) += count; |
| return -1; |
| } |
| |
| if (count && count == pKidList->GetCount()) { |
| for (size_t i = 0; i < count; i++) { |
| CPDF_Reference* pKid = ToReference(pKidList->GetObjectAt(i)); |
| if (pKid && pKid->GetRefObjNum() == objnum) |
| return static_cast<int>(*index + i); |
| } |
| } |
| |
| for (size_t i = 0; i < pKidList->GetCount(); i++) { |
| CPDF_Dictionary* pKid = pKidList->GetDictAt(i); |
| if (!pKid || pKid == pNode) |
| continue; |
| |
| int found_index = FindPageIndex(pKid, skip_count, objnum, index, level + 1); |
| if (found_index >= 0) |
| return found_index; |
| } |
| return -1; |
| } |
| |
| int CPDF_Document::GetPageIndex(uint32_t objnum) { |
| uint32_t nPages = m_PageList.size(); |
| uint32_t skip_count = 0; |
| bool bSkipped = false; |
| for (uint32_t i = 0; i < nPages; i++) { |
| if (m_PageList[i] == objnum) |
| return i; |
| |
| if (!bSkipped && m_PageList[i] == 0) { |
| skip_count = i; |
| bSkipped = true; |
| } |
| } |
| CPDF_Dictionary* pPages = GetPagesDict(); |
| if (!pPages) |
| return -1; |
| |
| int start_index = 0; |
| int found_index = FindPageIndex(pPages, &skip_count, objnum, &start_index); |
| |
| // Corrupt page tree may yield out-of-range results. |
| if (!pdfium::IndexInBounds(m_PageList, found_index)) |
| return -1; |
| |
| m_PageList[found_index] = objnum; |
| return found_index; |
| } |
| |
| int CPDF_Document::GetPageCount() const { |
| return pdfium::CollectionSize<int>(m_PageList); |
| } |
| |
| int CPDF_Document::RetrievePageCount() const { |
| CPDF_Dictionary* pPages = GetPagesDict(); |
| if (!pPages) |
| return 0; |
| |
| if (!pPages->KeyExist("Kids")) |
| return 1; |
| |
| std::set<CPDF_Dictionary*> visited_pages; |
| visited_pages.insert(pPages); |
| return CountPages(pPages, &visited_pages); |
| } |
| |
| uint32_t CPDF_Document::GetUserPermissions() const { |
| // https://bugs.chromium.org/p/pdfium/issues/detail?id=499 |
| if (!m_pParser) { |
| #ifndef PDF_ENABLE_XFA |
| return 0; |
| #else // PDF_ENABLE_XFA |
| return 0xFFFFFFFF; |
| #endif |
| } |
| return m_pParser->GetPermissions(); |
| } |
| |
| CPDF_Font* CPDF_Document::LoadFont(CPDF_Dictionary* pFontDict) { |
| ASSERT(pFontDict); |
| return m_pDocPage->GetFont(pFontDict); |
| } |
| |
| RetainPtr<CPDF_StreamAcc> CPDF_Document::LoadFontFile(CPDF_Stream* pStream) { |
| return m_pDocPage->GetFontFileStreamAcc(pStream); |
| } |
| |
| CPDF_ColorSpace* CPDF_Document::LoadColorSpace(CPDF_Object* pCSObj, |
| CPDF_Dictionary* pResources) { |
| return m_pDocPage->GetColorSpace(pCSObj, pResources); |
| } |
| |
| CPDF_Pattern* CPDF_Document::LoadPattern(CPDF_Object* pPatternObj, |
| bool bShading, |
| const CFX_Matrix& matrix) { |
| return m_pDocPage->GetPattern(pPatternObj, bShading, matrix); |
| } |
| |
| RetainPtr<CPDF_IccProfile> CPDF_Document::LoadIccProfile(CPDF_Stream* pStream) { |
| return m_pDocPage->GetIccProfile(pStream); |
| } |
| |
| RetainPtr<CPDF_Image> CPDF_Document::LoadImageFromPageData( |
| uint32_t dwStreamObjNum) { |
| ASSERT(dwStreamObjNum); |
| return m_pDocPage->GetImage(dwStreamObjNum); |
| } |
| |
| void CPDF_Document::CreateNewDoc() { |
| ASSERT(!m_pRootDict); |
| ASSERT(!m_pInfoDict); |
| m_pRootDict = NewIndirect<CPDF_Dictionary>(); |
| m_pRootDict->SetNewFor<CPDF_Name>("Type", "Catalog"); |
| |
| CPDF_Dictionary* pPages = NewIndirect<CPDF_Dictionary>(); |
| pPages->SetNewFor<CPDF_Name>("Type", "Pages"); |
| pPages->SetNewFor<CPDF_Number>("Count", 0); |
| pPages->SetNewFor<CPDF_Array>("Kids"); |
| m_pRootDict->SetNewFor<CPDF_Reference>("Pages", this, pPages->GetObjNum()); |
| m_pInfoDict = NewIndirect<CPDF_Dictionary>(); |
| } |
| |
| CPDF_Dictionary* CPDF_Document::CreateNewPage(int iPage) { |
| CPDF_Dictionary* pDict = NewIndirect<CPDF_Dictionary>(); |
| pDict->SetNewFor<CPDF_Name>("Type", "Page"); |
| uint32_t dwObjNum = pDict->GetObjNum(); |
| if (!InsertNewPage(iPage, pDict)) { |
| DeleteIndirectObject(dwObjNum); |
| return nullptr; |
| } |
| return pDict; |
| } |
| |
| bool CPDF_Document::InsertDeletePDFPage(CPDF_Dictionary* pPages, |
| int nPagesToGo, |
| CPDF_Dictionary* pPageDict, |
| bool bInsert, |
| std::set<CPDF_Dictionary*>* pVisited) { |
| CPDF_Array* pKidList = pPages->GetArrayFor("Kids"); |
| if (!pKidList) |
| return false; |
| |
| for (size_t i = 0; i < pKidList->GetCount(); i++) { |
| CPDF_Dictionary* pKid = pKidList->GetDictAt(i); |
| if (pKid->GetStringFor("Type") == "Page") { |
| if (nPagesToGo != 0) { |
| nPagesToGo--; |
| continue; |
| } |
| if (bInsert) { |
| pKidList->InsertNewAt<CPDF_Reference>(i, this, pPageDict->GetObjNum()); |
| pPageDict->SetNewFor<CPDF_Reference>("Parent", this, |
| pPages->GetObjNum()); |
| } else { |
| pKidList->RemoveAt(i); |
| } |
| pPages->SetNewFor<CPDF_Number>( |
| "Count", pPages->GetIntegerFor("Count") + (bInsert ? 1 : -1)); |
| ResetTraversal(); |
| break; |
| } |
| int nPages = pKid->GetIntegerFor("Count"); |
| if (nPagesToGo >= nPages) { |
| nPagesToGo -= nPages; |
| continue; |
| } |
| if (pdfium::ContainsKey(*pVisited, pKid)) |
| return false; |
| |
| pdfium::ScopedSetInsertion<CPDF_Dictionary*> insertion(pVisited, pKid); |
| if (!InsertDeletePDFPage(pKid, nPagesToGo, pPageDict, bInsert, pVisited)) |
| return false; |
| |
| pPages->SetNewFor<CPDF_Number>( |
| "Count", pPages->GetIntegerFor("Count") + (bInsert ? 1 : -1)); |
| break; |
| } |
| return true; |
| } |
| |
| bool CPDF_Document::InsertNewPage(int iPage, CPDF_Dictionary* pPageDict) { |
| const CPDF_Dictionary* pRoot = GetRoot(); |
| CPDF_Dictionary* pPages = pRoot ? pRoot->GetDictFor("Pages") : nullptr; |
| if (!pPages) |
| return false; |
| |
| int nPages = GetPageCount(); |
| if (iPage < 0 || iPage > nPages) |
| return false; |
| |
| if (iPage == nPages) { |
| CPDF_Array* pPagesList = pPages->GetArrayFor("Kids"); |
| if (!pPagesList) |
| pPagesList = pPages->SetNewFor<CPDF_Array>("Kids"); |
| pPagesList->AddNew<CPDF_Reference>(this, pPageDict->GetObjNum()); |
| pPages->SetNewFor<CPDF_Number>("Count", nPages + 1); |
| pPageDict->SetNewFor<CPDF_Reference>("Parent", this, pPages->GetObjNum()); |
| ResetTraversal(); |
| } else { |
| std::set<CPDF_Dictionary*> stack = {pPages}; |
| if (!InsertDeletePDFPage(pPages, iPage, pPageDict, true, &stack)) |
| return false; |
| } |
| m_PageList.insert(m_PageList.begin() + iPage, pPageDict->GetObjNum()); |
| return true; |
| } |
| |
| void CPDF_Document::DeletePage(int iPage) { |
| CPDF_Dictionary* pPages = GetPagesDict(); |
| if (!pPages) |
| return; |
| |
| int nPages = pPages->GetIntegerFor("Count"); |
| if (iPage < 0 || iPage >= nPages) |
| return; |
| |
| std::set<CPDF_Dictionary*> stack = {pPages}; |
| if (!InsertDeletePDFPage(pPages, iPage, nullptr, false, &stack)) |
| return; |
| |
| m_PageList.erase(m_PageList.begin() + iPage); |
| } |
| |
| CPDF_Font* CPDF_Document::AddStandardFont(const char* font, |
| CPDF_FontEncoding* pEncoding) { |
| ByteString name(font); |
| if (PDF_GetStandardFontName(&name) < 0) |
| return nullptr; |
| return GetPageData()->GetStandardFont(name, pEncoding); |
| } |
| |
| size_t CPDF_Document::CalculateEncodingDict(int charset, |
| CPDF_Dictionary* pBaseDict) { |
| size_t i; |
| for (i = 0; i < FX_ArraySize(g_FX_CharsetUnicodes); ++i) { |
| if (g_FX_CharsetUnicodes[i].m_Charset == charset) |
| break; |
| } |
| if (i == FX_ArraySize(g_FX_CharsetUnicodes)) |
| return i; |
| |
| CPDF_Dictionary* pEncodingDict = NewIndirect<CPDF_Dictionary>(); |
| pEncodingDict->SetNewFor<CPDF_Name>("BaseEncoding", "WinAnsiEncoding"); |
| |
| CPDF_Array* pArray = pEncodingDict->SetNewFor<CPDF_Array>("Differences"); |
| pArray->AddNew<CPDF_Number>(128); |
| |
| const uint16_t* pUnicodes = g_FX_CharsetUnicodes[i].m_pUnicodes; |
| for (int j = 0; j < 128; j++) { |
| ByteString name = PDF_AdobeNameFromUnicode(pUnicodes[j]); |
| pArray->AddNew<CPDF_Name>(name.IsEmpty() ? ".notdef" : name); |
| } |
| pBaseDict->SetNewFor<CPDF_Reference>("Encoding", this, |
| pEncodingDict->GetObjNum()); |
| return i; |
| } |
| |
| CPDF_Dictionary* CPDF_Document::ProcessbCJK( |
| CPDF_Dictionary* pBaseDict, |
| int charset, |
| bool bVert, |
| ByteString basefont, |
| std::function<void(wchar_t, wchar_t, CPDF_Array*)> Insert) { |
| CPDF_Dictionary* pFontDict = NewIndirect<CPDF_Dictionary>(); |
| ByteString cmap; |
| ByteString ordering; |
| int supplement = 0; |
| CPDF_Array* pWidthArray = pFontDict->SetNewFor<CPDF_Array>("W"); |
| switch (charset) { |
| case FX_CHARSET_ChineseTraditional: |
| cmap = bVert ? "ETenms-B5-V" : "ETenms-B5-H"; |
| ordering = "CNS1"; |
| supplement = 4; |
| pWidthArray->AddNew<CPDF_Number>(1); |
| Insert(0x20, 0x7e, pWidthArray); |
| break; |
| case FX_CHARSET_ChineseSimplified: |
| cmap = bVert ? "GBK-EUC-V" : "GBK-EUC-H"; |
| ordering = "GB1"; |
| supplement = 2; |
| pWidthArray->AddNew<CPDF_Number>(7716); |
| Insert(0x20, 0x20, pWidthArray); |
| pWidthArray->AddNew<CPDF_Number>(814); |
| Insert(0x21, 0x7e, pWidthArray); |
| break; |
| case FX_CHARSET_Hangul: |
| cmap = bVert ? "KSCms-UHC-V" : "KSCms-UHC-H"; |
| ordering = "Korea1"; |
| supplement = 2; |
| pWidthArray->AddNew<CPDF_Number>(1); |
| Insert(0x20, 0x7e, pWidthArray); |
| break; |
| case FX_CHARSET_ShiftJIS: |
| cmap = bVert ? "90ms-RKSJ-V" : "90ms-RKSJ-H"; |
| ordering = "Japan1"; |
| supplement = 5; |
| pWidthArray->AddNew<CPDF_Number>(231); |
| Insert(0x20, 0x7d, pWidthArray); |
| pWidthArray->AddNew<CPDF_Number>(326); |
| Insert(0xa0, 0xa0, pWidthArray); |
| pWidthArray->AddNew<CPDF_Number>(327); |
| Insert(0xa1, 0xdf, pWidthArray); |
| pWidthArray->AddNew<CPDF_Number>(631); |
| Insert(0x7e, 0x7e, pWidthArray); |
| break; |
| } |
| pBaseDict->SetNewFor<CPDF_Name>("Subtype", "Type0"); |
| pBaseDict->SetNewFor<CPDF_Name>("BaseFont", basefont); |
| pBaseDict->SetNewFor<CPDF_Name>("Encoding", cmap); |
| pFontDict->SetNewFor<CPDF_Name>("Type", "Font"); |
| pFontDict->SetNewFor<CPDF_Name>("Subtype", "CIDFontType2"); |
| pFontDict->SetNewFor<CPDF_Name>("BaseFont", basefont); |
| |
| CPDF_Dictionary* pCIDSysInfo = |
| pFontDict->SetNewFor<CPDF_Dictionary>("CIDSystemInfo"); |
| pCIDSysInfo->SetNewFor<CPDF_String>("Registry", "Adobe", false); |
| pCIDSysInfo->SetNewFor<CPDF_String>("Ordering", ordering, false); |
| pCIDSysInfo->SetNewFor<CPDF_Number>("Supplement", supplement); |
| |
| CPDF_Array* pArray = pBaseDict->SetNewFor<CPDF_Array>("DescendantFonts"); |
| pArray->AddNew<CPDF_Reference>(this, pFontDict->GetObjNum()); |
| return pFontDict; |
| } |
| |
| CPDF_Font* CPDF_Document::AddFont(CFX_Font* pFont, int charset, bool bVert) { |
| if (!pFont) |
| return nullptr; |
| |
| bool bCJK = charset == FX_CHARSET_ChineseTraditional || |
| charset == FX_CHARSET_ChineseSimplified || |
| charset == FX_CHARSET_Hangul || charset == FX_CHARSET_ShiftJIS; |
| ByteString basefont = pFont->GetFamilyName(); |
| basefont.Replace(" ", ""); |
| int flags = |
| CalculateFlags(pFont->IsBold(), pFont->IsItalic(), pFont->IsFixedWidth(), |
| false, false, charset == FX_CHARSET_Symbol); |
| |
| CPDF_Dictionary* pBaseDict = NewIndirect<CPDF_Dictionary>(); |
| pBaseDict->SetNewFor<CPDF_Name>("Type", "Font"); |
| auto pEncoding = pdfium::MakeUnique<CFX_UnicodeEncoding>(pFont); |
| CPDF_Dictionary* pFontDict = pBaseDict; |
| if (!bCJK) { |
| auto pWidths = pdfium::MakeUnique<CPDF_Array>(); |
| for (int charcode = 32; charcode < 128; charcode++) { |
| int glyph_index = pEncoding->GlyphFromCharCode(charcode); |
| int char_width = pFont->GetGlyphWidth(glyph_index); |
| pWidths->AddNew<CPDF_Number>(char_width); |
| } |
| if (charset == FX_CHARSET_ANSI || charset == FX_CHARSET_Default || |
| charset == FX_CHARSET_Symbol) { |
| pBaseDict->SetNewFor<CPDF_Name>("Encoding", "WinAnsiEncoding"); |
| for (int charcode = 128; charcode <= 255; charcode++) { |
| int glyph_index = pEncoding->GlyphFromCharCode(charcode); |
| int char_width = pFont->GetGlyphWidth(glyph_index); |
| pWidths->AddNew<CPDF_Number>(char_width); |
| } |
| } else { |
| size_t i = CalculateEncodingDict(charset, pBaseDict); |
| if (i < FX_ArraySize(g_FX_CharsetUnicodes)) { |
| const uint16_t* pUnicodes = g_FX_CharsetUnicodes[i].m_pUnicodes; |
| for (int j = 0; j < 128; j++) { |
| int glyph_index = pEncoding->GlyphFromCharCode(pUnicodes[j]); |
| int char_width = pFont->GetGlyphWidth(glyph_index); |
| pWidths->AddNew<CPDF_Number>(char_width); |
| } |
| } |
| } |
| ProcessNonbCJK(pBaseDict, pFont->IsBold(), pFont->IsItalic(), basefont, |
| std::move(pWidths)); |
| } else { |
| pFontDict = ProcessbCJK( |
| pBaseDict, charset, bVert, basefont, |
| [pFont, &pEncoding](wchar_t start, wchar_t end, CPDF_Array* widthArr) { |
| InsertWidthArray1(pFont, pEncoding.get(), start, end, widthArr); |
| }); |
| } |
| int italicangle = |
| pFont->GetSubstFont() ? pFont->GetSubstFont()->m_ItalicAngle : 0; |
| FX_RECT bbox; |
| pFont->GetBBox(bbox); |
| auto pBBox = pdfium::MakeUnique<CPDF_Array>(); |
| pBBox->AddNew<CPDF_Number>(bbox.left); |
| pBBox->AddNew<CPDF_Number>(bbox.bottom); |
| pBBox->AddNew<CPDF_Number>(bbox.right); |
| pBBox->AddNew<CPDF_Number>(bbox.top); |
| int32_t nStemV = 0; |
| if (pFont->GetSubstFont()) { |
| nStemV = pFont->GetSubstFont()->m_Weight / 5; |
| } else { |
| static const char stem_chars[] = {'i', 'I', '!', '1'}; |
| const size_t count = FX_ArraySize(stem_chars); |
| uint32_t glyph = pEncoding->GlyphFromCharCode(stem_chars[0]); |
| nStemV = pFont->GetGlyphWidth(glyph); |
| for (size_t i = 1; i < count; i++) { |
| glyph = pEncoding->GlyphFromCharCode(stem_chars[i]); |
| int width = pFont->GetGlyphWidth(glyph); |
| if (width > 0 && width < nStemV) |
| nStemV = width; |
| } |
| } |
| CPDF_Dictionary* pFontDesc = ToDictionary(AddIndirectObject( |
| CalculateFontDesc(this, basefont, flags, italicangle, pFont->GetAscent(), |
| pFont->GetDescent(), std::move(pBBox), nStemV))); |
| pFontDict->SetNewFor<CPDF_Reference>("FontDescriptor", this, |
| pFontDesc->GetObjNum()); |
| return LoadFont(pBaseDict); |
| } |
| |
| #if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_ |
| CPDF_Font* CPDF_Document::AddWindowsFont(LOGFONTW* pLogFont, |
| bool bVert, |
| bool bTranslateName) { |
| LOGFONTA lfa; |
| memcpy(&lfa, pLogFont, (char*)lfa.lfFaceName - (char*)&lfa); |
| ByteString face = ByteString::FromUnicode(pLogFont->lfFaceName); |
| if (face.GetLength() >= LF_FACESIZE) |
| return nullptr; |
| |
| strncpy(lfa.lfFaceName, face.c_str(), |
| (face.GetLength() + 1) * sizeof(ByteString::CharType)); |
| return AddWindowsFont(&lfa, bVert, bTranslateName); |
| } |
| |
| CPDF_Font* CPDF_Document::AddWindowsFont(LOGFONTA* pLogFont, |
| bool bVert, |
| bool bTranslateName) { |
| pLogFont->lfHeight = -1000; |
| pLogFont->lfWidth = 0; |
| HGDIOBJ hFont = CreateFontIndirectA(pLogFont); |
| HDC hDC = CreateCompatibleDC(nullptr); |
| hFont = SelectObject(hDC, hFont); |
| int tm_size = GetOutlineTextMetrics(hDC, 0, nullptr); |
| if (tm_size == 0) { |
| hFont = SelectObject(hDC, hFont); |
| DeleteObject(hFont); |
| DeleteDC(hDC); |
| return nullptr; |
| } |
| |
| LPBYTE tm_buf = FX_Alloc(BYTE, tm_size); |
| OUTLINETEXTMETRIC* ptm = reinterpret_cast<OUTLINETEXTMETRIC*>(tm_buf); |
| GetOutlineTextMetrics(hDC, tm_size, ptm); |
| int flags = CalculateFlags(false, pLogFont->lfItalic != 0, |
| (pLogFont->lfPitchAndFamily & 3) == FIXED_PITCH, |
| (pLogFont->lfPitchAndFamily & 0xf8) == FF_ROMAN, |
| (pLogFont->lfPitchAndFamily & 0xf8) == FF_SCRIPT, |
| pLogFont->lfCharSet == FX_CHARSET_Symbol); |
| |
| bool bCJK = pLogFont->lfCharSet == FX_CHARSET_ChineseTraditional || |
| pLogFont->lfCharSet == FX_CHARSET_ChineseSimplified || |
| pLogFont->lfCharSet == FX_CHARSET_Hangul || |
| pLogFont->lfCharSet == FX_CHARSET_ShiftJIS; |
| ByteString basefont; |
| if (bTranslateName && bCJK) |
| basefont = FPDF_GetPSNameFromTT(hDC); |
| |
| if (basefont.IsEmpty()) |
| basefont = pLogFont->lfFaceName; |
| |
| int italicangle = ptm->otmItalicAngle / 10; |
| int ascend = ptm->otmrcFontBox.top; |
| int descend = ptm->otmrcFontBox.bottom; |
| int capheight = ptm->otmsCapEmHeight; |
| int bbox[4] = {ptm->otmrcFontBox.left, ptm->otmrcFontBox.bottom, |
| ptm->otmrcFontBox.right, ptm->otmrcFontBox.top}; |
| FX_Free(tm_buf); |
| basefont.Replace(" ", ""); |
| CPDF_Dictionary* pBaseDict = NewIndirect<CPDF_Dictionary>(); |
| pBaseDict->SetNewFor<CPDF_Name>("Type", "Font"); |
| CPDF_Dictionary* pFontDict = pBaseDict; |
| if (!bCJK) { |
| if (pLogFont->lfCharSet == FX_CHARSET_ANSI || |
| pLogFont->lfCharSet == FX_CHARSET_Default || |
| pLogFont->lfCharSet == FX_CHARSET_Symbol) { |
| pBaseDict->SetNewFor<CPDF_Name>("Encoding", "WinAnsiEncoding"); |
| } else { |
| CalculateEncodingDict(pLogFont->lfCharSet, pBaseDict); |
| } |
| int char_widths[224]; |
| GetCharWidth(hDC, 32, 255, char_widths); |
| auto pWidths = pdfium::MakeUnique<CPDF_Array>(); |
| for (size_t i = 0; i < 224; i++) |
| pWidths->AddNew<CPDF_Number>(char_widths[i]); |
| ProcessNonbCJK(pBaseDict, pLogFont->lfWeight > FW_MEDIUM, |
| pLogFont->lfItalic != 0, basefont, std::move(pWidths)); |
| } else { |
| pFontDict = |
| ProcessbCJK(pBaseDict, pLogFont->lfCharSet, bVert, basefont, |
| [&hDC](wchar_t start, wchar_t end, CPDF_Array* widthArr) { |
| InsertWidthArray(hDC, start, end, widthArr); |
| }); |
| } |
| auto pBBox = pdfium::MakeUnique<CPDF_Array>(); |
| for (int i = 0; i < 4; i++) |
| pBBox->AddNew<CPDF_Number>(bbox[i]); |
| std::unique_ptr<CPDF_Dictionary> pFontDesc = |
| CalculateFontDesc(this, basefont, flags, italicangle, ascend, descend, |
| std::move(pBBox), pLogFont->lfWeight / 5); |
| pFontDesc->SetNewFor<CPDF_Number>("CapHeight", capheight); |
| pFontDict->SetNewFor<CPDF_Reference>( |
| "FontDescriptor", this, |
| AddIndirectObject(std::move(pFontDesc))->GetObjNum()); |
| hFont = SelectObject(hDC, hFont); |
| DeleteObject(hFont); |
| DeleteDC(hDC); |
| return LoadFont(pBaseDict); |
| } |
| #endif // _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_ |