Use string pools in some dictionaries

core/fpdfdoc/cpvt_generateap.cpp

 // 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
 
 #include "core/fpdfdoc/cpvt_generateap.h"
 
 #include <algorithm>
 
@@ skipping 40 matching lines @@
   CPDF_Dictionary* pDRDict = pFormDict->GetDictFor("DR");
   if (!pDRDict)
     return false;
 
   CPDF_Dictionary* pDRFontDict = pDRDict->GetDictFor("Font");
   if (!pDRFontDict)
     return false;
 
   CPDF_Dictionary* pFontDict = pDRFontDict->GetDictFor(sFontName.Mid(1));
   if (!pFontDict) {
-    pFontDict = new CPDF_Dictionary;
+    pFontDict = new CPDF_Dictionary(pDoc->GetByteStringPool());
     pFontDict->SetNameFor("Type", "Font");
     pFontDict->SetNameFor("Subtype", "Type1");
     pFontDict->SetNameFor("BaseFont", "Helvetica");
     pFontDict->SetNameFor("Encoding", "WinAnsiEncoding");
     pDRFontDict->SetReferenceFor(sFontName.Mid(1), pDoc,
                                  pDoc->AddIndirectObject(pFontDict));
   }
   CPDF_Font* pDefFont = pDoc->LoadFont(pFontDict);
   if (!pDefFont)
     return false;
@@ skipping 84 matching lines @@
       dsBorder);
   if (sBorderStream.GetLength() > 0)
     sAppStream << "q\n" << sBorderStream << "Q\n";
 
   CFX_FloatRect rcBody =
       CFX_FloatRect(rcBBox.left + fBorderWidth, rcBBox.bottom + fBorderWidth,
                     rcBBox.right - fBorderWidth, rcBBox.top - fBorderWidth);
   rcBody.Normalize();
   CPDF_Dictionary* pAPDict = pAnnotDict->GetDictFor("AP");
   if (!pAPDict) {
-    pAPDict = new CPDF_Dictionary;
+    pAPDict = new CPDF_Dictionary(pDoc->GetByteStringPool());
     pAnnotDict->SetFor("AP", pAPDict);
   }
   CPDF_Stream* pNormalStream = pAPDict->GetStreamFor("N");
   if (!pNormalStream) {
     pNormalStream = new CPDF_Stream;
     pAPDict->SetReferenceFor("N", pDoc, pDoc->AddIndirectObject(pNormalStream));
   }
   CPDF_Dictionary* pStreamDict = pNormalStream->GetDict();
   if (pStreamDict) {
     pStreamDict->SetMatrixFor("Matrix", matrix);
     pStreamDict->SetRectFor("BBox", rcBBox);
     CPDF_Dictionary* pStreamResList = pStreamDict->GetDictFor("Resources");
     if (pStreamResList) {
       CPDF_Dictionary* pStreamResFontList = pStreamResList->GetDictFor("Font");
       if (!pStreamResFontList) {
-        pStreamResFontList = new CPDF_Dictionary;
+        pStreamResFontList = new CPDF_Dictionary(pDoc->GetByteStringPool());
         pStreamResList->SetFor("Font", pStreamResFontList);
       }
       if (!pStreamResFontList->KeyExist(sFontName))
         pStreamResFontList->SetReferenceFor(sFontName, pDoc,
                                             pFontDict->GetObjNum());
     } else {
       pStreamDict->SetFor("Resources", pFormDict->GetDictFor("DR")->Clone());
       pStreamResList = pStreamDict->GetDictFor("Resources");
     }
   }
@@ skipping 230 matching lines @@
     pNormalStream->SetData(sAppStream.GetBuffer(), sAppStream.GetSize());
     pStreamDict = pNormalStream->GetDict();
     if (pStreamDict) {
       pStreamDict->SetMatrixFor("Matrix", matrix);
       pStreamDict->SetRectFor("BBox", rcBBox);
       CPDF_Dictionary* pStreamResList = pStreamDict->GetDictFor("Resources");
       if (pStreamResList) {
         CPDF_Dictionary* pStreamResFontList =
             pStreamResList->GetDictFor("Font");
         if (!pStreamResFontList) {
-          pStreamResFontList = new CPDF_Dictionary;
+          pStreamResFontList = new CPDF_Dictionary(pDoc->GetByteStringPool());
           pStreamResList->SetFor("Font", pStreamResFontList);
         }
         if (!pStreamResFontList->KeyExist(sFontName))
           pStreamResFontList->SetReferenceFor(sFontName, pDoc,
                                               pFontDict->GetObjNum());
       } else {
         pStreamDict->SetFor("Resources", pFormDict->GetDictFor("DR")->Clone());
         pStreamResList = pStreamDict->GetDictFor("Resources");
       }
     }
@@ skipping 89 matching lines @@
              << CPVT_GenerateAP::GenerateColorAP(
                     CPVT_Color(CPVT_Color::kRGB, 0, 0, 0), PaintOperation::FILL)
              << sContent << "ET\n"
              << "Q\n";
   return sAppStream.MakeString();
 }
 
 CPDF_Dictionary* GenerateExtGStateDict(const CPDF_Dictionary& pAnnotDict,
                                        const CFX_ByteString& sExtGSDictName,
                                        const CFX_ByteString& sBlendMode) {
-  CPDF_Dictionary* pGSDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pGSDict =
+      new CPDF_Dictionary(pAnnotDict.GetByteStringPool());
   pGSDict->SetStringFor("Type", "ExtGState");
 
   FX_FLOAT fOpacity =
       pAnnotDict.KeyExist("CA") ? pAnnotDict.GetNumberFor("CA") : 1;
   pGSDict->SetNumberFor("CA", fOpacity);
   pGSDict->SetNumberFor("ca", fOpacity);
   pGSDict->SetBooleanFor("AIS", false);
   pGSDict->SetStringFor("BM", sBlendMode);
 
-  CPDF_Dictionary* pExtGStateDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pExtGStateDict =
+      new CPDF_Dictionary(pAnnotDict.GetByteStringPool());
   pExtGStateDict->SetFor(sExtGSDictName, pGSDict);
-
   return pExtGStateDict;
 }
 
 CPDF_Dictionary* GenerateResourceFontDict(CPDF_Document* pDoc,
                                           const CFX_ByteString& sFontDictName) {
-  CPDF_Dictionary* pFontDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pFontDict = new CPDF_Dictionary(pDoc->GetByteStringPool());
   pFontDict->SetNameFor("Type", "Font");
   pFontDict->SetNameFor("Subtype", "Type1");
   pFontDict->SetNameFor("BaseFont", "Helvetica");
   pFontDict->SetNameFor("Encoding", "WinAnsiEncoding");
 
-  CPDF_Dictionary* pResourceFontDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pResourceFontDict =
+      new CPDF_Dictionary(pDoc->GetByteStringPool());
   pResourceFontDict->SetReferenceFor(sFontDictName, pDoc,
                                      pDoc->AddIndirectObject(pFontDict));
-
   return pResourceFontDict;
 }
 
 // Takes ownership of |pExtGStateDict| and |pResourceFontDict|.
-CPDF_Dictionary* GenerateResourceDict(CPDF_Dictionary* pExtGStateDict,
+CPDF_Dictionary* GenerateResourceDict(CPDF_Document* pDoc,
+                                      CPDF_Dictionary* pExtGStateDict,
                                       CPDF_Dictionary* pResourceFontDict) {
-  CPDF_Dictionary* pResourceDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pResourceDict =
+      new CPDF_Dictionary(pDoc->GetByteStringPool());
   if (pExtGStateDict)
     pResourceDict->SetFor("ExtGState", pExtGStateDict);
 
   if (pResourceFontDict)
     pResourceDict->SetFor("Font", pResourceFontDict);
 
   return pResourceDict;
 }
 
 // Takes ownership of |pResourceDict|.
 void GenerateAndSetAPDict(CPDF_Document* pDoc,
                           CPDF_Dictionary* pAnnotDict,
                           const CFX_ByteTextBuf& sAppStream,
                           CPDF_Dictionary* pResourceDict,
                           bool bIsTextMarkupAnnotation) {
-  CPDF_Dictionary* pAPDict = new CPDF_Dictionary;
+  CPDF_Dictionary* pAPDict = new CPDF_Dictionary(pDoc->GetByteStringPool());
   pAnnotDict->SetFor("AP", pAPDict);
 
   CPDF_Stream* pNormalStream = new CPDF_Stream;
   pNormalStream->SetData(sAppStream.GetBuffer(), sAppStream.GetSize());
   pAPDict->SetReferenceFor("N", pDoc, pDoc->AddIndirectObject(pNormalStream));
 
   CPDF_Dictionary* pStreamDict = pNormalStream->GetDict();
   pStreamDict->SetIntegerFor("FormType", 1);
   pStreamDict->SetStringFor("Subtype", "Form");
   pStreamDict->SetMatrixFor("Matrix", CFX_Matrix());
@@ skipping 178 matching lines @@
   sAppStream << rect.left << " " << fMiddleY + fDeltaY << " "
              << fMiddleX - fDeltaX << " " << rect.top << " " << fMiddleX << " "
              << rect.top << " c\n";
 
   bool bIsFillRect = pInteriorColor && !pInteriorColor->IsEmpty();
   sAppStream << GetPaintOperatorString(bIsStrokeRect, bIsFillRect) << "\n";
 
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal");
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pExtGStateDict, nullptr);
+      GenerateResourceDict(pDoc, pExtGStateDict, nullptr);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        false /*IsTextMarkupAnnotation*/);
   return true;
 }
 
 bool CPVT_GenerateAP::GenerateHighlightAP(CPDF_Document* pDoc,
                                           CPDF_Dictionary* pAnnotDict) {
   CFX_ByteTextBuf sAppStream;
   CFX_ByteString sExtGSDictName = "GS";
   sAppStream << "/" << sExtGSDictName << " gs ";
 
   sAppStream << GetColorStringWithDefault(pAnnotDict->GetArrayFor("C"),
                                           CPVT_Color(CPVT_Color::kRGB, 1, 1, 0),
                                           PaintOperation::FILL);
 
   CFX_FloatRect rect = CPDF_Annot::RectFromQuadPoints(pAnnotDict);
   rect.Normalize();
 
   sAppStream << rect.left << " " << rect.top << " m " << rect.right << " "
              << rect.top << " l " << rect.right << " " << rect.bottom << " l "
              << rect.left << " " << rect.bottom << " l "
              << "h f\n";
 
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Multiply");
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pExtGStateDict, nullptr);
+      GenerateResourceDict(pDoc, pExtGStateDict, nullptr);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        true /*IsTextMarkupAnnotation*/);
 
   return true;
 }
 
 bool CPVT_GenerateAP::GenerateInkAP(CPDF_Document* pDoc,
                                     CPDF_Dictionary* pAnnotDict) {
   FX_FLOAT fBorderWidth = GetBorderWidth(*pAnnotDict);
   bool bIsStroke = fBorderWidth > 0;
@@ skipping 34 matching lines @@
       sAppStream << pInkCoordList->GetNumberAt(j) << " "
                  << pInkCoordList->GetNumberAt(j + 1) << " l ";
     }
 
     sAppStream << "S\n";
   }
 
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal");
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pExtGStateDict, nullptr);
+      GenerateResourceDict(pDoc, pExtGStateDict, nullptr);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        false /*IsTextMarkupAnnotation*/);
   return true;
 }
 
 bool CPVT_GenerateAP::GenerateTextAP(CPDF_Document* pDoc,
                                      CPDF_Dictionary* pAnnotDict) {
   CFX_ByteTextBuf sAppStream;
   CFX_ByteString sExtGSDictName = "GS";
   sAppStream << "/" << sExtGSDictName << " gs ";
 
   CFX_FloatRect rect = pAnnotDict->GetRectFor("Rect");
   const FX_FLOAT fNoteLength = 20;
   CFX_FloatRect noteRect(rect.left, rect.bottom, rect.left + fNoteLength,
                          rect.bottom + fNoteLength);
   pAnnotDict->SetRectFor("Rect", noteRect);
 
   sAppStream << GenerateTextSymbolAP(noteRect);
 
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal");
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pExtGStateDict, nullptr);
+      GenerateResourceDict(pDoc, pExtGStateDict, nullptr);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        false /*IsTextMarkupAnnotation*/);
   return true;
 }
 
 bool CPVT_GenerateAP::GenerateUnderlineAP(CPDF_Document* pDoc,
                                           CPDF_Dictionary* pAnnotDict) {
   CFX_ByteTextBuf sAppStream;
   CFX_ByteString sExtGSDictName = "GS";
   sAppStream << "/" << sExtGSDictName << " gs ";
 
   sAppStream << GetColorStringWithDefault(pAnnotDict->GetArrayFor("C"),
                                           CPVT_Color(CPVT_Color::kRGB, 0, 0, 0),
                                           PaintOperation::STROKE);
 
   CFX_FloatRect rect = CPDF_Annot::RectFromQuadPoints(pAnnotDict);
   rect.Normalize();
 
   FX_FLOAT fLineWidth = 1.0;
   sAppStream << fLineWidth << " w " << rect.left << " "
              << rect.bottom + fLineWidth << " m " << rect.right << " "
              << rect.bottom + fLineWidth << " l S\n";
 
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal");
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pExtGStateDict, nullptr);
+      GenerateResourceDict(pDoc, pExtGStateDict, nullptr);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        true /*IsTextMarkupAnnotation*/);
   return true;
 }
 
 bool CPVT_GenerateAP::GeneratePopupAP(CPDF_Document* pDoc,
                                       CPDF_Dictionary* pAnnotDict) {
   CFX_ByteTextBuf sAppStream;
   CFX_ByteString sExtGSDictName = "GS";
   sAppStream << "/" << sExtGSDictName << " gs\n";
@@ skipping 12 matching lines @@
 
   sAppStream << rect.left << " " << rect.bottom << " " << rect.Width() << " "
              << rect.Height() << " re b\n";
 
   CFX_ByteString sFontName = "FONT";
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal");
   CPDF_Dictionary* pResourceFontDict =
       GenerateResourceFontDict(pDoc, sFontName);
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pResourceFontDict, pExtGStateDict);
+      GenerateResourceDict(pDoc, pResourceFontDict, pExtGStateDict);
 
   CPDF_Font* pDefFont = pDoc->LoadFont(pResourceFontDict);
   if (!pDefFont)
     return false;
 
   sAppStream << GetPopupContentsString(pDoc, *pAnnotDict, pDefFont, sFontName);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        false /*IsTextMarkupAnnotation*/);
   return true;
 }
@@ skipping 33 matching lines @@
 
   bool bIsFillRect = pInteriorColor && (pInteriorColor->GetCount() > 0);
 
   sAppStream << rect.left << " " << rect.bottom << " " << rect.Width() << " "
              << rect.Height() << " re "
              << GetPaintOperatorString(bIsStrokeRect, bIsFillRect) << "\n";
 
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal");
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pExtGStateDict, nullptr);
+      GenerateResourceDict(pDoc, pExtGStateDict, nullptr);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        false /*IsTextMarkupAnnotation*/);
   return true;
 }
 
 bool CPVT_GenerateAP::GenerateSquigglyAP(CPDF_Document* pDoc,
                                          CPDF_Dictionary* pAnnotDict) {
   CFX_ByteTextBuf sAppStream;
   CFX_ByteString sExtGSDictName = "GS";
   sAppStream << "/" << sExtGSDictName << " gs ";
@@ skipping 28 matching lines @@
   if (isUpwards)
     sAppStream << rect.right << " " << fBottom + fRemainder << " l ";
   else
     sAppStream << rect.right << " " << fTop - fRemainder << " l ";
 
   sAppStream << "S\n";
 
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal");
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pExtGStateDict, nullptr);
+      GenerateResourceDict(pDoc, pExtGStateDict, nullptr);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        true /*IsTextMarkupAnnotation*/);
   return true;
 }
 
 bool CPVT_GenerateAP::GenerateStrikeOutAP(CPDF_Document* pDoc,
                                           CPDF_Dictionary* pAnnotDict) {
   CFX_ByteTextBuf sAppStream;
   CFX_ByteString sExtGSDictName = "GS";
   sAppStream << "/" << sExtGSDictName << " gs ";
 
   sAppStream << GetColorStringWithDefault(pAnnotDict->GetArrayFor("C"),
                                           CPVT_Color(CPVT_Color::kRGB, 0, 0, 0),
                                           PaintOperation::STROKE);
 
   CFX_FloatRect rect = CPDF_Annot::RectFromQuadPoints(pAnnotDict);
   rect.Normalize();
 
   FX_FLOAT fLineWidth = 1.0;
   FX_FLOAT fY = (rect.top + rect.bottom) / 2;
   sAppStream << fLineWidth << " w " << rect.left << " " << fY << " m "
              << rect.right << " " << fY << " l S\n";
 
   CPDF_Dictionary* pExtGStateDict =
       GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal");
   CPDF_Dictionary* pResourceDict =
-      GenerateResourceDict(pExtGStateDict, nullptr);
+      GenerateResourceDict(pDoc, pExtGStateDict, nullptr);
   GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pResourceDict,
                        true /*IsTextMarkupAnnotation*/);
   return true;
 }
 
 // Static.
 CFX_ByteString CPVT_GenerateAP::GenerateEditAP(
     IPVT_FontMap* pFontMap,
     CPDF_VariableText::Iterator* pIterator,
     const CFX_FloatPoint& ptOffset,
@@ skipping 252 matching lines @@
                                                  int32_t nFontIndex,
                                                  FX_FLOAT fFontSize) {
   CFX_ByteTextBuf sRet;
   if (pFontMap) {
     CFX_ByteString sFontAlias = pFontMap->GetPDFFontAlias(nFontIndex);
     if (sFontAlias.GetLength() > 0 && fFontSize > 0)
       sRet << "/" << sFontAlias << " " << fFontSize << " Tf\n";
   }
   return sRet.MakeString();
 }