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// Copyright 2016 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_PAGE_CPDF_DOCPAGEDATA_H_
#define CORE_FPDFAPI_PAGE_CPDF_DOCPAGEDATA_H_
#include <map>
#include <memory>
#include <set>
#include "core/fpdfapi/font/cpdf_font.h"
#include "core/fpdfapi/page/cpdf_colorspace.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/observed_ptr.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/unowned_ptr.h"
class CFX_Font;
class CPDF_Dictionary;
class CPDF_FontEncoding;
class CPDF_IccProfile;
class CPDF_Image;
class CPDF_Object;
class CPDF_Pattern;
class CPDF_Stream;
class CPDF_StreamAcc;
class CPDF_DocPageData : public CPDF_Document::PageDataIface,
public CPDF_Font::FormFactoryIface {
public:
static CPDF_DocPageData* FromDocument(const CPDF_Document* pDoc);
CPDF_DocPageData();
~CPDF_DocPageData() override;
// CPDF_Document::PageDataIface:
void ClearStockFont() override;
RetainPtr<CPDF_StreamAcc> GetFontFileStreamAcc(
const CPDF_Stream* pFontStream) override;
void MaybePurgeFontFileStreamAcc(const CPDF_Stream* pFontStream) override;
// CPDF_Font::FormFactoryIFace:
std::unique_ptr<CPDF_Font::FormIface> CreateForm(
CPDF_Document* pDocument,
CPDF_Dictionary* pPageResources,
CPDF_Stream* pFormStream) override;
bool IsForceClear() const { return m_bForceClear; }
RetainPtr<CPDF_Font> AddFont(std::unique_ptr<CFX_Font> pFont, int charset);
RetainPtr<CPDF_Font> GetFont(CPDF_Dictionary* pFontDict);
RetainPtr<CPDF_Font> AddStandardFont(const ByteString& fontName,
const CPDF_FontEncoding* pEncoding);
RetainPtr<CPDF_Font> GetStandardFont(const ByteString& fontName,
const CPDF_FontEncoding* pEncoding);
#if defined(OS_WIN)
RetainPtr<CPDF_Font> AddWindowsFont(LOGFONTA* pLogFont);
#endif
// Loads a colorspace.
RetainPtr<CPDF_ColorSpace> GetColorSpace(const CPDF_Object* pCSObj,
const CPDF_Dictionary* pResources);
// Loads a colorspace in a context that might be while loading another
// colorspace. |pVisited| is passed recursively to avoid circular calls
// involving CPDF_ColorSpace::Load().
RetainPtr<CPDF_ColorSpace> GetColorSpaceGuarded(
const CPDF_Object* pCSObj,
const CPDF_Dictionary* pResources,
std::set<const CPDF_Object*>* pVisited);
RetainPtr<CPDF_Pattern> GetPattern(CPDF_Object* pPatternObj,
bool bShading,
const CFX_Matrix& matrix);
RetainPtr<CPDF_Image> GetImage(uint32_t dwStreamObjNum);
void MaybePurgeImage(uint32_t dwStreamObjNum);
RetainPtr<CPDF_IccProfile> GetIccProfile(const CPDF_Stream* pProfileStream);
private:
// Loads a colorspace in a context that might be while loading another
// colorspace, or even in a recursive call from this method itself. |pVisited|
// is passed recursively to avoid circular calls involving
// CPDF_ColorSpace::Load() and |pVisitedInternal| is also passed recursively
// to avoid circular calls with this method calling itself.
RetainPtr<CPDF_ColorSpace> GetColorSpaceInternal(
const CPDF_Object* pCSObj,
const CPDF_Dictionary* pResources,
std::set<const CPDF_Object*>* pVisited,
std::set<const CPDF_Object*>* pVisitedInternal);
size_t CalculateEncodingDict(int charset, CPDF_Dictionary* pBaseDict);
CPDF_Dictionary* ProcessbCJK(
CPDF_Dictionary* pBaseDict,
int charset,
ByteString basefont,
std::function<void(wchar_t, wchar_t, CPDF_Array*)> Insert);
void Clear(bool bForceRelease);
bool m_bForceClear = false;
// Specific destruction order may be required between maps.
std::map<ByteString, RetainPtr<const CPDF_Stream>> m_HashProfileMap;
std::map<const CPDF_Object*, ObservedPtr<CPDF_ColorSpace>> m_ColorSpaceMap;
std::map<const CPDF_Stream*, RetainPtr<CPDF_StreamAcc>> m_FontFileMap;
std::map<const CPDF_Stream*, ObservedPtr<CPDF_IccProfile>> m_IccProfileMap;
std::map<const CPDF_Object*, ObservedPtr<CPDF_Pattern>> m_PatternMap;
std::map<uint32_t, RetainPtr<CPDF_Image>> m_ImageMap;
std::map<const CPDF_Dictionary*, ObservedPtr<CPDF_Font>> m_FontMap;
};
#endif // CORE_FPDFAPI_PAGE_CPDF_DOCPAGEDATA_H_
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