| // Copyright 2017 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/font/cpdf_cmapmanager.h" |
| |
| #include <utility> |
| |
| #include "core/fpdfapi/font/cpdf_cid2unicodemap.h" |
| #include "core/fpdfapi/font/cpdf_cmap.h" |
| #include "third_party/base/ptr_util.h" |
| |
| namespace { |
| |
| RetainPtr<const CPDF_CMap> LoadPredefinedCMap(ByteString name) { |
| if (!name.IsEmpty() && name[0] == '/') |
| name = name.Right(name.GetLength() - 1); |
| return pdfium::MakeRetain<CPDF_CMap>(name); |
| } |
| |
| } // namespace |
| |
| CPDF_CMapManager::CPDF_CMapManager() = default; |
| |
| CPDF_CMapManager::~CPDF_CMapManager() = default; |
| |
| RetainPtr<const CPDF_CMap> CPDF_CMapManager::GetPredefinedCMap( |
| const ByteString& name) { |
| auto it = m_CMaps.find(name); |
| if (it != m_CMaps.end()) |
| return it->second; |
| |
| RetainPtr<const CPDF_CMap> pCMap = LoadPredefinedCMap(name); |
| if (!name.IsEmpty()) |
| m_CMaps[name] = pCMap; |
| |
| return pCMap; |
| } |
| |
| CPDF_CID2UnicodeMap* CPDF_CMapManager::GetCID2UnicodeMap(CIDSet charset) { |
| if (!m_CID2UnicodeMaps[charset]) { |
| m_CID2UnicodeMaps[charset] = |
| pdfium::MakeUnique<CPDF_CID2UnicodeMap>(charset); |
| } |
| return m_CID2UnicodeMaps[charset].get(); |
| } |