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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | 6 |
| 7 #include "public/fpdf_transformpage.h" | 7 #include "public/fpdf_transformpage.h" |
| 8 | 8 |
| 9 #include "core/fpdfapi/page/cpdf_clippath.h" | 9 #include "core/fpdfapi/page/cpdf_clippath.h" |
| 10 #include "core/fpdfapi/page/cpdf_page.h" | 10 #include "core/fpdfapi/page/cpdf_page.h" |
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| 122 pPageDic ? pPageDic->GetObjectFor("Contents") : nullptr; | 122 pPageDic ? pPageDic->GetObjectFor("Contents") : nullptr; |
| 123 if (!pContentObj) | 123 if (!pContentObj) |
| 124 pContentObj = pPageDic ? pPageDic->GetArrayFor("Contents") : nullptr; | 124 pContentObj = pPageDic ? pPageDic->GetArrayFor("Contents") : nullptr; |
| 125 if (!pContentObj) | 125 if (!pContentObj) |
| 126 return FALSE; | 126 return FALSE; |
| 127 | 127 |
| 128 CPDF_Document* pDoc = pPage->m_pDocument; | 128 CPDF_Document* pDoc = pPage->m_pDocument; |
| 129 if (!pDoc) | 129 if (!pDoc) |
| 130 return FALSE; | 130 return FALSE; |
| 131 | 131 |
| 132 CPDF_Stream* pStream = pDoc->AddIndirectStream( | 132 CPDF_Dictionary* pDic = new CPDF_Dictionary(pDoc->GetByteStringPool()); |
| 133 nullptr, 0, new CPDF_Dictionary(pDoc->GetByteStringPool())); | 133 CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic); |
| 134 pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize()); | 134 pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize()); |
| 135 pDoc->AddIndirectObject(pStream); |
| 136 pDic = new CPDF_Dictionary(pDoc->GetByteStringPool()); |
| 135 | 137 |
| 136 CPDF_Stream* pEndStream = pDoc->AddIndirectStream( | 138 CPDF_Stream* pEndStream = new CPDF_Stream(nullptr, 0, pDic); |
| 137 nullptr, 0, new CPDF_Dictionary(pDoc->GetByteStringPool())); | |
| 138 pEndStream->SetData((const uint8_t*)" Q", 2); | 139 pEndStream->SetData((const uint8_t*)" Q", 2); |
| 140 pDoc->AddIndirectObject(pEndStream); |
| 139 | 141 |
| 140 CPDF_Array* pContentArray = nullptr; | 142 CPDF_Array* pContentArray = nullptr; |
| 141 CPDF_Array* pArray = ToArray(pContentObj); | 143 CPDF_Array* pArray = ToArray(pContentObj); |
| 142 if (pArray) { | 144 if (pArray) { |
| 143 pContentArray = pArray; | 145 pContentArray = pArray; |
| 144 CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); | 146 CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); |
| 145 pContentArray->InsertAt(0, pRef); | 147 pContentArray->InsertAt(0, pRef); |
| 146 pContentArray->AddReference(pDoc, pEndStream->GetObjNum()); | 148 pContentArray->AddReference(pDoc, pEndStream->GetObjNum()); |
| 147 } else if (CPDF_Reference* pReference = ToReference(pContentObj)) { | 149 } else if (CPDF_Reference* pReference = ToReference(pContentObj)) { |
| 148 CPDF_Object* pDirectObj = pReference->GetDirect(); | 150 CPDF_Object* pDirectObj = pReference->GetDirect(); |
| 149 if (pDirectObj) { | 151 if (pDirectObj) { |
| 150 CPDF_Array* pObjArray = pDirectObj->AsArray(); | 152 CPDF_Array* pObjArray = pDirectObj->AsArray(); |
| 151 if (pObjArray) { | 153 if (pObjArray) { |
| 152 pContentArray = pObjArray; | 154 pContentArray = pObjArray; |
| 153 CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); | 155 CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); |
| 154 pContentArray->InsertAt(0, pRef); | 156 pContentArray->InsertAt(0, pRef); |
| 155 pContentArray->AddReference(pDoc, pEndStream->GetObjNum()); | 157 pContentArray->AddReference(pDoc, pEndStream->GetObjNum()); |
| 156 } else if (pDirectObj->IsStream()) { | 158 } else if (pDirectObj->IsStream()) { |
| 157 pContentArray = pDoc->AddIndirectArray(); | 159 pContentArray = new CPDF_Array(); |
| 158 pContentArray->AddReference(pDoc, pStream->GetObjNum()); | 160 pContentArray->AddReference(pDoc, pStream->GetObjNum()); |
| 159 pContentArray->AddReference(pDoc, pDirectObj->GetObjNum()); | 161 pContentArray->AddReference(pDoc, pDirectObj->GetObjNum()); |
| 160 pContentArray->AddReference(pDoc, pEndStream->GetObjNum()); | 162 pContentArray->AddReference(pDoc, pEndStream->GetObjNum()); |
| 161 pPageDic->SetReferenceFor("Contents", pDoc, pContentArray); | 163 pPageDic->SetReferenceFor("Contents", pDoc, |
| 164 pDoc->AddIndirectObject(pContentArray)); |
| 162 } | 165 } |
| 163 } | 166 } |
| 164 } | 167 } |
| 165 | 168 |
| 166 // Need to transform the patterns as well. | 169 // Need to transform the patterns as well. |
| 167 CPDF_Dictionary* pRes = pPageDic->GetDictFor("Resources"); | 170 CPDF_Dictionary* pRes = pPageDic->GetDictFor("Resources"); |
| 168 if (pRes) { | 171 if (pRes) { |
| 169 CPDF_Dictionary* pPattenDict = pRes->GetDictFor("Pattern"); | 172 CPDF_Dictionary* pPattenDict = pRes->GetDictFor("Pattern"); |
| 170 if (pPattenDict) { | 173 if (pPattenDict) { |
| 171 for (const auto& it : *pPattenDict) { | 174 for (const auto& it : *pPattenDict) { |
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| 295 if (iClipType == FXFILL_WINDING) | 298 if (iClipType == FXFILL_WINDING) |
| 296 strClip << "W n\n"; | 299 strClip << "W n\n"; |
| 297 else | 300 else |
| 298 strClip << "W* n\n"; | 301 strClip << "W* n\n"; |
| 299 } | 302 } |
| 300 } | 303 } |
| 301 CPDF_Document* pDoc = pPage->m_pDocument; | 304 CPDF_Document* pDoc = pPage->m_pDocument; |
| 302 if (!pDoc) | 305 if (!pDoc) |
| 303 return; | 306 return; |
| 304 | 307 |
| 305 CPDF_Stream* pStream = pDoc->AddIndirectStream( | 308 CPDF_Dictionary* pDic = new CPDF_Dictionary(pDoc->GetByteStringPool()); |
| 306 nullptr, 0, new CPDF_Dictionary(pDoc->GetByteStringPool())); | 309 CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic); |
| 307 pStream->SetData(strClip.GetBuffer(), strClip.GetSize()); | 310 pStream->SetData(strClip.GetBuffer(), strClip.GetSize()); |
| 311 pDoc->AddIndirectObject(pStream); |
| 308 | 312 |
| 309 CPDF_Array* pContentArray = nullptr; | 313 CPDF_Array* pContentArray = nullptr; |
| 310 CPDF_Array* pArray = ToArray(pContentObj); | 314 CPDF_Array* pArray = ToArray(pContentObj); |
| 311 if (pArray) { | 315 if (pArray) { |
| 312 pContentArray = pArray; | 316 pContentArray = pArray; |
| 313 CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); | 317 CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); |
| 314 pContentArray->InsertAt(0, pRef); | 318 pContentArray->InsertAt(0, pRef); |
| 315 } else if (CPDF_Reference* pReference = ToReference(pContentObj)) { | 319 } else if (CPDF_Reference* pReference = ToReference(pContentObj)) { |
| 316 CPDF_Object* pDirectObj = pReference->GetDirect(); | 320 CPDF_Object* pDirectObj = pReference->GetDirect(); |
| 317 if (pDirectObj) { | 321 if (pDirectObj) { |
| 318 CPDF_Array* pObjArray = pDirectObj->AsArray(); | 322 CPDF_Array* pObjArray = pDirectObj->AsArray(); |
| 319 if (pObjArray) { | 323 if (pObjArray) { |
| 320 pContentArray = pObjArray; | 324 pContentArray = pObjArray; |
| 321 CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); | 325 CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); |
| 322 pContentArray->InsertAt(0, pRef); | 326 pContentArray->InsertAt(0, pRef); |
| 323 } else if (pDirectObj->IsStream()) { | 327 } else if (pDirectObj->IsStream()) { |
| 324 pContentArray = pDoc->AddIndirectArray(); | 328 pContentArray = new CPDF_Array(); |
| 325 pContentArray->AddReference(pDoc, pStream); | 329 pContentArray->AddReference(pDoc, pStream->GetObjNum()); |
| 326 pContentArray->AddReference(pDoc, pDirectObj); | 330 pContentArray->AddReference(pDoc, pDirectObj->GetObjNum()); |
| 327 pPageDic->SetReferenceFor("Contents", pDoc, pContentArray); | 331 pPageDic->SetReferenceFor("Contents", pDoc, |
| 332 pDoc->AddIndirectObject(pContentArray)); |
| 328 } | 333 } |
| 329 } | 334 } |
| 330 } | 335 } |
| 331 } | 336 } |
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