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Unified Diff: core/fpdfapi/fpdf_font/fpdf_font.cpp

Issue 2392773003: Move core/fpdfapi/fpdf_font to core/fpdfapi/font (Closed)
Patch Set: Created 4 years, 2 months ago
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Index: core/fpdfapi/fpdf_font/fpdf_font.cpp
diff --git a/core/fpdfapi/fpdf_font/fpdf_font.cpp b/core/fpdfapi/fpdf_font/fpdf_font.cpp
deleted file mode 100644
index cff5223a008ba749de4f3a1a07ec768c7e2822d3..0000000000000000000000000000000000000000
--- a/core/fpdfapi/fpdf_font/fpdf_font.cpp
+++ /dev/null
@@ -1,307 +0,0 @@
-// 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/fpdf_font/font_int.h"
-
-#include "core/fpdfapi/cpdf_modulemgr.h"
-#include "core/fpdfapi/fpdf_page/cpdf_form.h"
-#include "core/fpdfapi/fpdf_page/cpdf_pagemodule.h"
-#include "core/fpdfapi/fpdf_page/pageint.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_array.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_document.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_name.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_number.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_simple_parser.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_stream_acc.h"
-#include "core/fxcrt/fx_ext.h"
-#include "core/fxge/fx_freetype.h"
-#include "third_party/base/numerics/safe_conversions.h"
-#include "third_party/base/stl_util.h"
-
-int TT2PDF(int m, FXFT_Face face) {
- int upm = FXFT_Get_Face_UnitsPerEM(face);
- if (upm == 0)
- return m;
- return pdfium::base::checked_cast<int>(
- (static_cast<double>(m) * 1000 + upm / 2) / upm);
-}
-
-bool FT_UseTTCharmap(FXFT_Face face, int platform_id, int encoding_id) {
- auto* pCharMap = FXFT_Get_Face_Charmaps(face);
- for (int i = 0; i < FXFT_Get_Face_CharmapCount(face); i++) {
- if (FXFT_Get_Charmap_PlatformID(pCharMap[i]) == platform_id &&
- FXFT_Get_Charmap_EncodingID(pCharMap[i]) == encoding_id) {
- FXFT_Set_Charmap(face, pCharMap[i]);
- return true;
- }
- }
- return false;
-}
-
-CFX_StockFontArray::CFX_StockFontArray() {}
-
-CFX_StockFontArray::~CFX_StockFontArray() {
- for (size_t i = 0; i < FX_ArraySize(m_StockFonts); ++i) {
- if (!m_StockFonts[i])
- continue;
- CPDF_Dictionary* pFontDict = m_StockFonts[i]->GetFontDict();
- if (pFontDict)
- pFontDict->Release();
- }
-}
-
-CPDF_Font* CFX_StockFontArray::GetFont(uint32_t index) const {
- if (index >= FX_ArraySize(m_StockFonts))
- return nullptr;
- return m_StockFonts[index].get();
-}
-
-CPDF_Font* CFX_StockFontArray::SetFont(uint32_t index,
- std::unique_ptr<CPDF_Font> pFont) {
- CPDF_Font* result = pFont.get();
- if (index < FX_ArraySize(m_StockFonts))
- m_StockFonts[index] = std::move(pFont);
- return result;
-}
-
-CPDF_FontGlobals::CPDF_FontGlobals() {
- FXSYS_memset(m_EmbeddedCharsets, 0, sizeof(m_EmbeddedCharsets));
- FXSYS_memset(m_EmbeddedToUnicodes, 0, sizeof(m_EmbeddedToUnicodes));
-}
-
-CPDF_FontGlobals::~CPDF_FontGlobals() {}
-
-CPDF_Font* CPDF_FontGlobals::Find(CPDF_Document* pDoc, uint32_t index) {
- auto it = m_StockMap.find(pDoc);
- if (it == m_StockMap.end())
- return nullptr;
- return it->second ? it->second->GetFont(index) : nullptr;
-}
-
-CPDF_Font* CPDF_FontGlobals::Set(CPDF_Document* pDoc,
- uint32_t index,
- std::unique_ptr<CPDF_Font> pFont) {
- if (!pdfium::ContainsKey(m_StockMap, pDoc))
- m_StockMap[pDoc].reset(new CFX_StockFontArray);
- return m_StockMap[pDoc]->SetFont(index, std::move(pFont));
-}
-
-void CPDF_FontGlobals::Clear(CPDF_Document* pDoc) {
- m_StockMap.erase(pDoc);
-}
-
-CFX_WideString CPDF_ToUnicodeMap::Lookup(uint32_t charcode) const {
- auto it = m_Map.find(charcode);
- if (it != m_Map.end()) {
- uint32_t value = it->second;
- FX_WCHAR unicode = (FX_WCHAR)(value & 0xffff);
- if (unicode != 0xffff) {
- return unicode;
- }
- const FX_WCHAR* buf = m_MultiCharBuf.GetBuffer();
- uint32_t buf_len = m_MultiCharBuf.GetLength();
- if (!buf || buf_len == 0) {
- return CFX_WideString();
- }
- uint32_t index = value >> 16;
- if (index >= buf_len) {
- return CFX_WideString();
- }
- uint32_t len = buf[index];
- if (index + len < index || index + len >= buf_len) {
- return CFX_WideString();
- }
- return CFX_WideString(buf + index + 1, len);
- }
- if (m_pBaseMap) {
- return m_pBaseMap->UnicodeFromCID((uint16_t)charcode);
- }
- return CFX_WideString();
-}
-
-uint32_t CPDF_ToUnicodeMap::ReverseLookup(FX_WCHAR unicode) const {
- for (const auto& pair : m_Map) {
- if (pair.second == static_cast<uint32_t>(unicode))
- return pair.first;
- }
- return 0;
-}
-
-// Static.
-uint32_t CPDF_ToUnicodeMap::StringToCode(const CFX_ByteStringC& str) {
- int len = str.GetLength();
- if (len == 0)
- return 0;
-
- uint32_t result = 0;
- if (str[0] == '<') {
- for (int i = 1; i < len && std::isxdigit(str[i]); ++i)
- result = result * 16 + FXSYS_toHexDigit(str.CharAt(i));
- return result;
- }
-
- for (int i = 0; i < len && std::isdigit(str[i]); ++i)
- result = result * 10 + FXSYS_toDecimalDigit(str.CharAt(i));
-
- return result;
-}
-
-static CFX_WideString StringDataAdd(CFX_WideString str) {
- CFX_WideString ret;
- int len = str.GetLength();
- FX_WCHAR value = 1;
- for (int i = len - 1; i >= 0; --i) {
- FX_WCHAR ch = str[i] + value;
- if (ch < str[i]) {
- ret.Insert(0, 0);
- } else {
- ret.Insert(0, ch);
- value = 0;
- }
- }
- if (value) {
- ret.Insert(0, value);
- }
- return ret;
-}
-
-// Static.
-CFX_WideString CPDF_ToUnicodeMap::StringToWideString(
- const CFX_ByteStringC& str) {
- int len = str.GetLength();
- if (len == 0)
- return CFX_WideString();
-
- CFX_WideString result;
- if (str[0] == '<') {
- int byte_pos = 0;
- FX_WCHAR ch = 0;
- for (int i = 1; i < len && std::isxdigit(str[i]); ++i) {
- ch = ch * 16 + FXSYS_toHexDigit(str[i]);
- byte_pos++;
- if (byte_pos == 4) {
- result += ch;
- byte_pos = 0;
- ch = 0;
- }
- }
- return result;
- }
- return result;
-}
-
-CPDF_ToUnicodeMap::CPDF_ToUnicodeMap() : m_pBaseMap(nullptr) {}
-
-CPDF_ToUnicodeMap::~CPDF_ToUnicodeMap() {}
-
-void CPDF_ToUnicodeMap::Load(CPDF_Stream* pStream) {
- CIDSet cid_set = CIDSET_UNKNOWN;
- CPDF_StreamAcc stream;
- stream.LoadAllData(pStream, FALSE);
- CPDF_SimpleParser parser(stream.GetData(), stream.GetSize());
- while (1) {
- CFX_ByteStringC word = parser.GetWord();
- if (word.IsEmpty()) {
- break;
- }
- if (word == "beginbfchar") {
- while (1) {
- word = parser.GetWord();
- if (word.IsEmpty() || word == "endbfchar") {
- break;
- }
- uint32_t srccode = StringToCode(word);
- word = parser.GetWord();
- CFX_WideString destcode = StringToWideString(word);
- int len = destcode.GetLength();
- if (len == 0) {
- continue;
- }
- if (len == 1) {
- m_Map[srccode] = destcode.GetAt(0);
- } else {
- m_Map[srccode] = m_MultiCharBuf.GetLength() * 0x10000 + 0xffff;
- m_MultiCharBuf.AppendChar(destcode.GetLength());
- m_MultiCharBuf << destcode;
- }
- }
- } else if (word == "beginbfrange") {
- while (1) {
- CFX_ByteString low, high;
- low = parser.GetWord();
- if (low.IsEmpty() || low == "endbfrange") {
- break;
- }
- high = parser.GetWord();
- uint32_t lowcode = StringToCode(low.AsStringC());
- uint32_t highcode =
- (lowcode & 0xffffff00) | (StringToCode(high.AsStringC()) & 0xff);
- if (highcode == (uint32_t)-1) {
- break;
- }
- CFX_ByteString start(parser.GetWord());
- if (start == "[") {
- for (uint32_t code = lowcode; code <= highcode; code++) {
- CFX_ByteString dest(parser.GetWord());
- CFX_WideString destcode = StringToWideString(dest.AsStringC());
- int len = destcode.GetLength();
- if (len == 0) {
- continue;
- }
- if (len == 1) {
- m_Map[code] = destcode.GetAt(0);
- } else {
- m_Map[code] = m_MultiCharBuf.GetLength() * 0x10000 + 0xffff;
- m_MultiCharBuf.AppendChar(destcode.GetLength());
- m_MultiCharBuf << destcode;
- }
- }
- parser.GetWord();
- } else {
- CFX_WideString destcode = StringToWideString(start.AsStringC());
- int len = destcode.GetLength();
- uint32_t value = 0;
- if (len == 1) {
- value = StringToCode(start.AsStringC());
- for (uint32_t code = lowcode; code <= highcode; code++) {
- m_Map[code] = value++;
- }
- } else {
- for (uint32_t code = lowcode; code <= highcode; code++) {
- CFX_WideString retcode;
- if (code == lowcode) {
- retcode = destcode;
- } else {
- retcode = StringDataAdd(destcode);
- }
- m_Map[code] = m_MultiCharBuf.GetLength() * 0x10000 + 0xffff;
- m_MultiCharBuf.AppendChar(retcode.GetLength());
- m_MultiCharBuf << retcode;
- destcode = retcode;
- }
- }
- }
- }
- } else if (word == "/Adobe-Korea1-UCS2") {
- cid_set = CIDSET_KOREA1;
- } else if (word == "/Adobe-Japan1-UCS2") {
- cid_set = CIDSET_JAPAN1;
- } else if (word == "/Adobe-CNS1-UCS2") {
- cid_set = CIDSET_CNS1;
- } else if (word == "/Adobe-GB1-UCS2") {
- cid_set = CIDSET_GB1;
- }
- }
- if (cid_set) {
- m_pBaseMap = CPDF_ModuleMgr::Get()
- ->GetPageModule()
- ->GetFontGlobals()
- ->m_CMapManager.GetCID2UnicodeMap(cid_set, FALSE);
- } else {
- m_pBaseMap = nullptr;
- }
-}
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