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// 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
#ifndef CORE_FPDFAPI_FONT_CPDF_FONTGLOBALS_H_
#define CORE_FPDFAPI_FONT_CPDF_FONTGLOBALS_H_
#include <map>
#include <memory>
#include "core/fpdfapi/cmaps/fpdf_cmaps.h"
#include "core/fpdfapi/font/cpdf_cidfont.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxge/cfx_fontmapper.h"
#include "third_party/base/span.h"
class CFX_StockFontArray;
class CPDF_Font;
class CPDF_FontGlobals {
public:
// Per-process singleton which must be managed by callers.
static void Create();
static void Destroy();
static CPDF_FontGlobals* GetInstance();
// Caller must load the maps before using font globals.
void LoadEmbeddedMaps();
void Clear(CPDF_Document* pDoc);
RetainPtr<CPDF_Font> Find(CPDF_Document* pDoc,
CFX_FontMapper::StandardFont index);
void Set(CPDF_Document* pDoc,
CFX_FontMapper::StandardFont index,
const RetainPtr<CPDF_Font>& pFont);
void SetEmbeddedCharset(CIDSet idx, pdfium::span<const FXCMAP_CMap> map) {
m_EmbeddedCharsets[idx] = map;
}
pdfium::span<const FXCMAP_CMap> GetEmbeddedCharset(CIDSet idx) const {
return m_EmbeddedCharsets[idx];
}
void SetEmbeddedToUnicode(CIDSet idx, pdfium::span<const uint16_t> map) {
m_EmbeddedToUnicodes[idx] = map;
}
pdfium::span<const uint16_t> GetEmbeddedToUnicode(CIDSet idx) {
return m_EmbeddedToUnicodes[idx];
}
RetainPtr<const CPDF_CMap> GetPredefinedCMap(const ByteString& name);
CPDF_CID2UnicodeMap* GetCID2UnicodeMap(CIDSet charset);
private:
CPDF_FontGlobals();
~CPDF_FontGlobals();
void LoadEmbeddedGB1CMaps();
void LoadEmbeddedCNS1CMaps();
void LoadEmbeddedJapan1CMaps();
void LoadEmbeddedKorea1CMaps();
std::map<ByteString, RetainPtr<const CPDF_CMap>> m_CMaps;
std::unique_ptr<CPDF_CID2UnicodeMap> m_CID2UnicodeMaps[CIDSET_NUM_SETS];
pdfium::span<const FXCMAP_CMap> m_EmbeddedCharsets[CIDSET_NUM_SETS];
pdfium::span<const uint16_t> m_EmbeddedToUnicodes[CIDSET_NUM_SETS];
std::map<CPDF_Document*, std::unique_ptr<CFX_StockFontArray>> m_StockMap;
};
#endif // CORE_FPDFAPI_FONT_CPDF_FONTGLOBALS_H_