Rename fpdf_page_doc.cpp -> cpdf_docpagedata.h

core/fpdfapi/page/fpdf_page_doc.cpp

Index: core/fpdfapi/page/fpdf_page_doc.cpp
diff --git a/core/fpdfapi/page/fpdf_page_doc.cpp b/core/fpdfapi/page/fpdf_page_doc.cpp
deleted file mode 100644
index 6fa64cfa8ec57672e04faceaee848ecd4505d8ae..0000000000000000000000000000000000000000
--- a/core/fpdfapi/page/fpdf_page_doc.cpp
+++ /dev/null
@@ -1,549 +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/page/pageint.h"
-
-#include <algorithm>
-#include <set>
-
-#include "core/fdrm/crypto/fx_crypt.h"
-#include "core/fpdfapi/cpdf_modulemgr.h"
-#include "core/fpdfapi/font/cpdf_type1font.h"
-#include "core/fpdfapi/font/font_int.h"
-#include "core/fpdfapi/page/cpdf_image.h"
-#include "core/fpdfapi/page/cpdf_pagemodule.h"
-#include "core/fpdfapi/page/cpdf_pattern.h"
-#include "core/fpdfapi/page/cpdf_shadingpattern.h"
-#include "core/fpdfapi/page/cpdf_tilingpattern.h"
-#include "core/fpdfapi/parser/cpdf_array.h"
-#include "core/fpdfapi/parser/cpdf_dictionary.h"
-#include "core/fpdfapi/parser/cpdf_document.h"
-#include "core/fpdfapi/parser/cpdf_stream_acc.h"
-#include "third_party/base/stl_util.h"
-
-void CPDF_ModuleMgr::InitPageModule() {
-  m_pPageModule.reset(new CPDF_PageModule);
-}
-
-CPDF_DocPageData::CPDF_DocPageData(CPDF_Document* pPDFDoc)
-    : m_pPDFDoc(pPDFDoc), m_bForceClear(false) {}
-
-CPDF_DocPageData::~CPDF_DocPageData() {
-  Clear(false);
-  Clear(true);
-
-  for (auto& it : m_PatternMap)
-    delete it.second;
-  m_PatternMap.clear();
-
-  for (auto& it : m_FontMap)
-    delete it.second;
-  m_FontMap.clear();
-
-  for (auto& it : m_ColorSpaceMap)
-    delete it.second;
-  m_ColorSpaceMap.clear();
-}
-
-void CPDF_DocPageData::Clear(bool bForceRelease) {
-  m_bForceClear = bForceRelease;
-
-  for (auto& it : m_PatternMap) {
-    CPDF_CountedPattern* ptData = it.second;
-    if (!ptData->get())
-      continue;
-
-    if (bForceRelease || ptData->use_count() < 2)
-      ptData->clear();
-  }
-
-  for (auto& it : m_FontMap) {
-    CPDF_CountedFont* fontData = it.second;
-    if (!fontData->get())
-      continue;
-
-    if (bForceRelease || fontData->use_count() < 2) {
-      fontData->clear();
-    }
-  }
-
-  for (auto& it : m_ColorSpaceMap) {
-    CPDF_CountedColorSpace* csData = it.second;
-    if (!csData->get())
-      continue;
-
-    if (bForceRelease || csData->use_count() < 2) {
-      csData->get()->Release();
-      csData->reset(nullptr);
-    }
-  }
-
-  for (auto it = m_IccProfileMap.begin(); it != m_IccProfileMap.end();) {
-    auto curr_it = it++;
-    CPDF_CountedIccProfile* ipData = curr_it->second;
-    if (!ipData->get())
-      continue;
-
-    if (bForceRelease || ipData->use_count() < 2) {
-      for (auto hash_it = m_HashProfileMap.begin();
-           hash_it != m_HashProfileMap.end(); ++hash_it) {
-        if (curr_it->first == hash_it->second) {
-          m_HashProfileMap.erase(hash_it);
-          break;
-        }
-      }
-      delete ipData->get();
-      delete ipData;
-      m_IccProfileMap.erase(curr_it);
-    }
-  }
-
-  for (auto it = m_FontFileMap.begin(); it != m_FontFileMap.end();) {
-    auto curr_it = it++;
-    CPDF_CountedStreamAcc* pCountedFont = curr_it->second;
-    if (!pCountedFont->get())
-      continue;
-
-    if (bForceRelease || pCountedFont->use_count() < 2) {
-      delete pCountedFont->get();
-      delete pCountedFont;
-      m_FontFileMap.erase(curr_it);
-    }
-  }
-
-  for (auto it = m_ImageMap.begin(); it != m_ImageMap.end();) {
-    auto curr_it = it++;
-    CPDF_CountedImage* pCountedImage = curr_it->second;
-    if (!pCountedImage->get())
-      continue;
-
-    if (bForceRelease || pCountedImage->use_count() < 2) {
-      delete pCountedImage->get();
-      delete pCountedImage;
-      m_ImageMap.erase(curr_it);
-    }
-  }
-}
-
-CPDF_Font* CPDF_DocPageData::GetFont(CPDF_Dictionary* pFontDict) {
-  if (!pFontDict)
-    return nullptr;
-
-  CPDF_CountedFont* pFontData = nullptr;
-  auto it = m_FontMap.find(pFontDict);
-  if (it != m_FontMap.end()) {
-    pFontData = it->second;
-    if (pFontData->get()) {
-      return pFontData->AddRef();
-    }
-  }
-  std::unique_ptr<CPDF_Font> pFont = CPDF_Font::Create(m_pPDFDoc, pFontDict);
-  if (!pFont)
-    return nullptr;
-
-  if (pFontData) {
-    pFontData->reset(pFont.release());
-  } else {
-    pFontData = new CPDF_CountedFont(pFont.release());
-    m_FontMap[pFontDict] = pFontData;
-  }
-  return pFontData->AddRef();
-}
-
-CPDF_Font* CPDF_DocPageData::GetStandardFont(const CFX_ByteString& fontName,
-                                             CPDF_FontEncoding* pEncoding) {
-  if (fontName.IsEmpty())
-    return nullptr;
-
-  for (auto& it : m_FontMap) {
-    CPDF_CountedFont* fontData = it.second;
-    CPDF_Font* pFont = fontData->get();
-    if (!pFont)
-      continue;
-    if (pFont->GetBaseFont() != fontName)
-      continue;
-    if (pFont->IsEmbedded())
-      continue;
-    if (!pFont->IsType1Font())
-      continue;
-    if (pFont->GetFontDict()->KeyExist("Widths"))
-      continue;
-
-    CPDF_Type1Font* pT1Font = pFont->AsType1Font();
-    if (pEncoding && !pT1Font->GetEncoding()->IsIdentical(pEncoding))
-      continue;
-
-    return fontData->AddRef();
-  }
-
-  CPDF_Dictionary* pDict = new CPDF_Dictionary(m_pPDFDoc->GetByteStringPool());
-  pDict->SetNameFor("Type", "Font");
-  pDict->SetNameFor("Subtype", "Type1");
-  pDict->SetNameFor("BaseFont", fontName);
-  if (pEncoding) {
-    pDict->SetFor("Encoding",
-                  pEncoding->Realize(m_pPDFDoc->GetByteStringPool()));
-  }
-  m_pPDFDoc->AddIndirectObject(pDict);
-  std::unique_ptr<CPDF_Font> pFont = CPDF_Font::Create(m_pPDFDoc, pDict);
-  if (!pFont)
-    return nullptr;
-
-  CPDF_CountedFont* fontData = new CPDF_CountedFont(pFont.release());
-  m_FontMap[pDict] = fontData;
-  return fontData->AddRef();
-}
-
-void CPDF_DocPageData::ReleaseFont(const CPDF_Dictionary* pFontDict) {
-  if (!pFontDict)
-    return;
-
-  auto it = m_FontMap.find(pFontDict);
-  if (it == m_FontMap.end())
-    return;
-
-  CPDF_CountedFont* pFontData = it->second;
-  if (!pFontData->get())
-    return;
-
-  pFontData->RemoveRef();
-  if (pFontData->use_count() > 1)
-    return;
-
-  // We have font data only in m_FontMap cache. Clean it.
-  pFontData->clear();
-}
-
-CPDF_ColorSpace* CPDF_DocPageData::GetColorSpace(
-    CPDF_Object* pCSObj,
-    const CPDF_Dictionary* pResources) {
-  std::set<CPDF_Object*> visited;
-  return GetColorSpaceImpl(pCSObj, pResources, &visited);
-}
-
-CPDF_ColorSpace* CPDF_DocPageData::GetColorSpaceImpl(
-    CPDF_Object* pCSObj,
-    const CPDF_Dictionary* pResources,
-    std::set<CPDF_Object*>* pVisited) {
-  if (!pCSObj)
-    return nullptr;
-
-  if (pdfium::ContainsKey(*pVisited, pCSObj))
-    return nullptr;
-
-  if (pCSObj->IsName()) {
-    CFX_ByteString name = pCSObj->GetString();
-    CPDF_ColorSpace* pCS = CPDF_ColorSpace::ColorspaceFromName(name);
-    if (!pCS && pResources) {
-      CPDF_Dictionary* pList = pResources->GetDictFor("ColorSpace");
-      if (pList) {
-        pdfium::ScopedSetInsertion<CPDF_Object*> insertion(pVisited, pCSObj);
-        return GetColorSpaceImpl(pList->GetDirectObjectFor(name), nullptr,
-                                 pVisited);
-      }
-    }
-    if (!pCS || !pResources)
-      return pCS;
-
-    CPDF_Dictionary* pColorSpaces = pResources->GetDictFor("ColorSpace");
-    if (!pColorSpaces)
-      return pCS;
-
-    CPDF_Object* pDefaultCS = nullptr;
-    switch (pCS->GetFamily()) {
-      case PDFCS_DEVICERGB:
-        pDefaultCS = pColorSpaces->GetDirectObjectFor("DefaultRGB");
-        break;
-      case PDFCS_DEVICEGRAY:
-        pDefaultCS = pColorSpaces->GetDirectObjectFor("DefaultGray");
-        break;
-      case PDFCS_DEVICECMYK:
-        pDefaultCS = pColorSpaces->GetDirectObjectFor("DefaultCMYK");
-        break;
-    }
-    if (!pDefaultCS)
-      return pCS;
-
-    pdfium::ScopedSetInsertion<CPDF_Object*> insertion(pVisited, pCSObj);
-    return GetColorSpaceImpl(pDefaultCS, nullptr, pVisited);
-  }
-
-  CPDF_Array* pArray = pCSObj->AsArray();
-  if (!pArray || pArray->IsEmpty())
-    return nullptr;
-
-  if (pArray->GetCount() == 1) {
-    pdfium::ScopedSetInsertion<CPDF_Object*> insertion(pVisited, pCSObj);
-    return GetColorSpaceImpl(pArray->GetDirectObjectAt(0), pResources,
-                             pVisited);
-  }
-
-  CPDF_CountedColorSpace* csData = nullptr;
-  auto it = m_ColorSpaceMap.find(pCSObj);
-  if (it != m_ColorSpaceMap.end()) {
-    csData = it->second;
-    if (csData->get()) {
-      return csData->AddRef();
-    }
-  }
-
-  std::unique_ptr<CPDF_ColorSpace> pCS =
-      CPDF_ColorSpace::Load(m_pPDFDoc, pArray);
-  if (!pCS)
-    return nullptr;
-
-  if (!csData) {
-    csData = new CPDF_CountedColorSpace(pCS.release());
-    m_ColorSpaceMap[pCSObj] = csData;
-  } else {
-    csData->reset(pCS.release());
-  }
-  return csData->AddRef();
-}
-
-CPDF_ColorSpace* CPDF_DocPageData::GetCopiedColorSpace(CPDF_Object* pCSObj) {
-  if (!pCSObj)
-    return nullptr;
-
-  auto it = m_ColorSpaceMap.find(pCSObj);
-  if (it != m_ColorSpaceMap.end())
-    return it->second->AddRef();
-
-  return nullptr;
-}
-
-void CPDF_DocPageData::ReleaseColorSpace(const CPDF_Object* pColorSpace) {
-  if (!pColorSpace)
-    return;
-
-  auto it = m_ColorSpaceMap.find(pColorSpace);
-  if (it == m_ColorSpaceMap.end())
-    return;
-
-  CPDF_CountedColorSpace* pCountedColorSpace = it->second;
-  if (!pCountedColorSpace->get())
-    return;
-
-  pCountedColorSpace->RemoveRef();
-  if (pCountedColorSpace->use_count() > 1)
-    return;
-
-  // We have item only in m_ColorSpaceMap cache. Clean it.
-  pCountedColorSpace->get()->Release();
-  pCountedColorSpace->reset(nullptr);
-}
-
-CPDF_Pattern* CPDF_DocPageData::GetPattern(CPDF_Object* pPatternObj,
-                                           bool bShading,
-                                           const CFX_Matrix& matrix) {
-  if (!pPatternObj)
-    return nullptr;
-
-  CPDF_CountedPattern* ptData = nullptr;
-  auto it = m_PatternMap.find(pPatternObj);
-  if (it != m_PatternMap.end()) {
-    ptData = it->second;
-    if (ptData->get()) {
-      return ptData->AddRef();
-    }
-  }
-  CPDF_Pattern* pPattern = nullptr;
-  if (bShading) {
-    pPattern = new CPDF_ShadingPattern(m_pPDFDoc, pPatternObj, true, matrix);
-  } else {
-    CPDF_Dictionary* pDict = pPatternObj ? pPatternObj->GetDict() : nullptr;
-    if (pDict) {
-      int type = pDict->GetIntegerFor("PatternType");
-      if (type == CPDF_Pattern::TILING) {
-        pPattern = new CPDF_TilingPattern(m_pPDFDoc, pPatternObj, matrix);
-      } else if (type == CPDF_Pattern::SHADING) {
-        pPattern =
-            new CPDF_ShadingPattern(m_pPDFDoc, pPatternObj, false, matrix);
-      }
-    }
-  }
-  if (!pPattern)
-    return nullptr;
-
-  if (!ptData) {
-    ptData = new CPDF_CountedPattern(pPattern);
-    m_PatternMap[pPatternObj] = ptData;
-  } else {
-    ptData->reset(pPattern);
-  }
-  return ptData->AddRef();
-}
-
-void CPDF_DocPageData::ReleasePattern(const CPDF_Object* pPatternObj) {
-  if (!pPatternObj)
-    return;
-
-  auto it = m_PatternMap.find(pPatternObj);
-  if (it == m_PatternMap.end())
-    return;
-
-  CPDF_CountedPattern* pPattern = it->second;
-  if (!pPattern->get())
-    return;
-
-  pPattern->RemoveRef();
-  if (pPattern->use_count() > 1)
-    return;
-
-  // We have item only in m_PatternMap cache. Clean it.
-  pPattern->clear();
-}
-
-CPDF_Image* CPDF_DocPageData::GetImage(CPDF_Object* pImageStream) {
-  if (!pImageStream)
-    return nullptr;
-
-  const uint32_t dwImageObjNum = pImageStream->GetObjNum();
-  auto it = m_ImageMap.find(dwImageObjNum);
-  if (it != m_ImageMap.end())
-    return it->second->AddRef();
-
-  CPDF_CountedImage* pCountedImage = new CPDF_CountedImage(
-      new CPDF_Image(m_pPDFDoc, pImageStream->AsStream(), false));
-  m_ImageMap[dwImageObjNum] = pCountedImage;
-  return pCountedImage->AddRef();
-}
-
-void CPDF_DocPageData::ReleaseImage(const CPDF_Object* pImageStream) {
-  if (!pImageStream)
-    return;
-
-  uint32_t dwObjNum = pImageStream->GetObjNum();
-  if (!dwObjNum)
-    return;
-
-  auto it = m_ImageMap.find(dwObjNum);
-  if (it == m_ImageMap.end())
-    return;
-
-  CPDF_CountedImage* pCountedImage = it->second;
-  if (!pCountedImage)
-    return;
-
-  pCountedImage->RemoveRef();
-  if (pCountedImage->use_count() > 1)
-    return;
-
-  // We have item only in m_ImageMap cache. Clean it.
-  delete pCountedImage->get();
-  delete pCountedImage;
-  m_ImageMap.erase(it);
-}
-
-CPDF_IccProfile* CPDF_DocPageData::GetIccProfile(
-    CPDF_Stream* pIccProfileStream) {
-  if (!pIccProfileStream)
-    return nullptr;
-
-  auto it = m_IccProfileMap.find(pIccProfileStream);
-  if (it != m_IccProfileMap.end())
-    return it->second->AddRef();
-
-  CPDF_StreamAcc stream;
-  stream.LoadAllData(pIccProfileStream, FALSE);
-  uint8_t digest[20];
-  CRYPT_SHA1Generate(stream.GetData(), stream.GetSize(), digest);
-  CFX_ByteString bsDigest(digest, 20);
-  auto hash_it = m_HashProfileMap.find(bsDigest);
-  if (hash_it != m_HashProfileMap.end()) {
-    auto it_copied_stream = m_IccProfileMap.find(hash_it->second);
-    if (it_copied_stream != m_IccProfileMap.end())
-      return it_copied_stream->second->AddRef();
-  }
-  CPDF_IccProfile* pProfile =
-      new CPDF_IccProfile(stream.GetData(), stream.GetSize());
-  CPDF_CountedIccProfile* ipData = new CPDF_CountedIccProfile(pProfile);
-  m_IccProfileMap[pIccProfileStream] = ipData;
-  m_HashProfileMap[bsDigest] = pIccProfileStream;
-  return ipData->AddRef();
-}
-
-void CPDF_DocPageData::ReleaseIccProfile(const CPDF_IccProfile* pIccProfile) {
-  ASSERT(pIccProfile);
-
-  for (auto it = m_IccProfileMap.begin(); it != m_IccProfileMap.end(); ++it) {
-    CPDF_CountedIccProfile* profile = it->second;
-    if (profile->get() != pIccProfile)
-      continue;
-
-    profile->RemoveRef();
-    if (profile->use_count() > 1)
-      continue;
-    // We have item only in m_IccProfileMap cache. Clean it.
-    delete profile->get();
-    delete profile;
-    m_IccProfileMap.erase(it);
-    return;
-  }
-}
-
-CPDF_StreamAcc* CPDF_DocPageData::GetFontFileStreamAcc(
-    CPDF_Stream* pFontStream) {
-  ASSERT(pFontStream);
-
-  auto it = m_FontFileMap.find(pFontStream);
-  if (it != m_FontFileMap.end())
-    return it->second->AddRef();
-
-  CPDF_Dictionary* pFontDict = pFontStream->GetDict();
-  int32_t org_size = pFontDict->GetIntegerFor("Length1") +
-                     pFontDict->GetIntegerFor("Length2") +
-                     pFontDict->GetIntegerFor("Length3");
-  org_size = std::max(org_size, 0);
-
-  CPDF_StreamAcc* pFontFile = new CPDF_StreamAcc;
-  pFontFile->LoadAllData(pFontStream, FALSE, org_size);
-
-  CPDF_CountedStreamAcc* pCountedFont = new CPDF_CountedStreamAcc(pFontFile);
-  m_FontFileMap[pFontStream] = pCountedFont;
-  return pCountedFont->AddRef();
-}
-
-void CPDF_DocPageData::ReleaseFontFileStreamAcc(
-    const CPDF_Stream* pFontStream) {
-  if (!pFontStream)
-    return;
-
-  auto it = m_FontFileMap.find(pFontStream);
-  if (it == m_FontFileMap.end())
-    return;
-
-  CPDF_CountedStreamAcc* pCountedStream = it->second;
-  if (!pCountedStream)
-    return;
-
-  pCountedStream->RemoveRef();
-  if (pCountedStream->use_count() > 1)
-    return;
-
-  // We have item only in m_FontFileMap cache. Clean it.
-  delete pCountedStream->get();
-  delete pCountedStream;
-  m_FontFileMap.erase(it);
-}
-
-CPDF_CountedColorSpace* CPDF_DocPageData::FindColorSpacePtr(
-    CPDF_Object* pCSObj) const {
-  if (!pCSObj)
-    return nullptr;
-
-  auto it = m_ColorSpaceMap.find(pCSObj);
-  return it != m_ColorSpaceMap.end() ? it->second : nullptr;
-}
-
-CPDF_CountedPattern* CPDF_DocPageData::FindPatternPtr(
-    CPDF_Object* pPatternObj) const {
-  if (!pPatternObj)
-    return nullptr;
-
-  auto it = m_PatternMap.find(pPatternObj);
-  return it != m_PatternMap.end() ? it->second : nullptr;
-}