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1 // Copyright 2016 PDFium Authors. All rights reserved. | 1 // Copyright 2016 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 "core/fpdfapi/fpdf_edit/include/cpdf_pagecontentgenerator.h" | 7 #include "core/fpdfapi/fpdf_edit/include/cpdf_pagecontentgenerator.h" |
8 | 8 |
9 #include "core/fpdfapi/fpdf_edit/include/cpdf_creator.h" | 9 #include "core/fpdfapi/fpdf_edit/include/cpdf_creator.h" |
10 #include "core/fpdfapi/fpdf_page/include/cpdf_image.h" | 10 #include "core/fpdfapi/fpdf_page/include/cpdf_image.h" |
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46 if (!pPageObj || !pPageObj->IsImage()) { | 46 if (!pPageObj || !pPageObj->IsImage()) { |
47 continue; | 47 continue; |
48 } | 48 } |
49 ProcessImage(buf, pPageObj->AsImage()); | 49 ProcessImage(buf, pPageObj->AsImage()); |
50 } | 50 } |
51 CPDF_Object* pContent = | 51 CPDF_Object* pContent = |
52 pPageDict ? pPageDict->GetDirectObjectFor("Contents") : nullptr; | 52 pPageDict ? pPageDict->GetDirectObjectFor("Contents") : nullptr; |
53 if (pContent) { | 53 if (pContent) { |
54 pPageDict->RemoveFor("Contents"); | 54 pPageDict->RemoveFor("Contents"); |
55 } | 55 } |
56 CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, nullptr); | 56 CPDF_Stream* pStream = new CPDF_Stream; |
57 pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE); | 57 pStream->SetData(buf.GetBuffer(), buf.GetLength()); |
58 m_pDocument->AddIndirectObject(pStream); | 58 m_pDocument->AddIndirectObject(pStream); |
59 pPageDict->SetReferenceFor("Contents", m_pDocument, pStream->GetObjNum()); | 59 pPageDict->SetReferenceFor("Contents", m_pDocument, pStream->GetObjNum()); |
60 } | 60 } |
61 | 61 |
62 CFX_ByteString CPDF_PageContentGenerator::RealizeResource( | 62 CFX_ByteString CPDF_PageContentGenerator::RealizeResource( |
63 CPDF_Object* pResourceObj, | 63 CPDF_Object* pResourceObj, |
64 const CFX_ByteString& bsType) { | 64 const CFX_ByteString& bsType) { |
65 if (!m_pPage->m_pResources) { | 65 if (!m_pPage->m_pResources) { |
66 m_pPage->m_pResources = new CPDF_Dictionary; | 66 m_pPage->m_pResources = new CPDF_Dictionary; |
67 int objnum = m_pDocument->AddIndirectObject(m_pPage->m_pResources); | 67 int objnum = m_pDocument->AddIndirectObject(m_pPage->m_pResources); |
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102 pImageObj->SetUnownedImage(m_pDocument->GetPageData()->GetImage(pStream)); | 102 pImageObj->SetUnownedImage(m_pDocument->GetPageData()->GetImage(pStream)); |
103 } | 103 } |
104 buf << "/" << PDF_NameEncode(name) << " Do Q\n"; | 104 buf << "/" << PDF_NameEncode(name) << " Do Q\n"; |
105 } | 105 } |
106 } | 106 } |
107 | 107 |
108 void CPDF_PageContentGenerator::ProcessForm(CFX_ByteTextBuf& buf, | 108 void CPDF_PageContentGenerator::ProcessForm(CFX_ByteTextBuf& buf, |
109 const uint8_t* data, | 109 const uint8_t* data, |
110 uint32_t size, | 110 uint32_t size, |
111 CFX_Matrix& matrix) { | 111 CFX_Matrix& matrix) { |
112 if (!data || !size) { | 112 if (!data || !size) |
113 return; | 113 return; |
114 } | 114 |
115 CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, nullptr); | |
116 CPDF_Dictionary* pFormDict = new CPDF_Dictionary; | 115 CPDF_Dictionary* pFormDict = new CPDF_Dictionary; |
117 pFormDict->SetNameFor("Type", "XObject"); | 116 pFormDict->SetNameFor("Type", "XObject"); |
118 pFormDict->SetNameFor("Subtype", "Form"); | 117 pFormDict->SetNameFor("Subtype", "Form"); |
| 118 |
119 CFX_FloatRect bbox = m_pPage->GetPageBBox(); | 119 CFX_FloatRect bbox = m_pPage->GetPageBBox(); |
120 matrix.TransformRect(bbox); | 120 matrix.TransformRect(bbox); |
121 pFormDict->SetRectFor("BBox", bbox); | 121 pFormDict->SetRectFor("BBox", bbox); |
| 122 |
| 123 CPDF_Stream* pStream = new CPDF_Stream; |
122 pStream->InitStream(data, size, pFormDict); | 124 pStream->InitStream(data, size, pFormDict); |
123 buf << "q " << matrix << " cm "; | 125 buf << "q " << matrix << " cm "; |
| 126 |
124 CFX_ByteString name = RealizeResource(pStream, "XObject"); | 127 CFX_ByteString name = RealizeResource(pStream, "XObject"); |
125 buf << "/" << PDF_NameEncode(name) << " Do Q\n"; | 128 buf << "/" << PDF_NameEncode(name) << " Do Q\n"; |
126 } | 129 } |
| 130 |
127 void CPDF_PageContentGenerator::TransformContent(CFX_Matrix& matrix) { | 131 void CPDF_PageContentGenerator::TransformContent(CFX_Matrix& matrix) { |
128 CPDF_Dictionary* pDict = m_pPage->m_pFormDict; | 132 CPDF_Dictionary* pDict = m_pPage->m_pFormDict; |
129 CPDF_Object* pContent = | 133 CPDF_Object* pContent = |
130 pDict ? pDict->GetDirectObjectFor("Contents") : nullptr; | 134 pDict ? pDict->GetDirectObjectFor("Contents") : nullptr; |
131 if (!pContent) | 135 if (!pContent) |
132 return; | 136 return; |
133 | 137 |
134 CFX_ByteTextBuf buf; | 138 CFX_ByteTextBuf buf; |
135 if (CPDF_Array* pArray = pContent->AsArray()) { | 139 if (CPDF_Array* pArray = pContent->AsArray()) { |
136 size_t iCount = pArray->GetCount(); | 140 size_t iCount = pArray->GetCount(); |
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157 delete pContentArray[i]; | 161 delete pContentArray[i]; |
158 } | 162 } |
159 ProcessForm(buf, pBuf, size, matrix); | 163 ProcessForm(buf, pBuf, size, matrix); |
160 FX_Free(pBuf); | 164 FX_Free(pBuf); |
161 FX_Free(pContentArray); | 165 FX_Free(pContentArray); |
162 } else if (CPDF_Stream* pStream = pContent->AsStream()) { | 166 } else if (CPDF_Stream* pStream = pContent->AsStream()) { |
163 CPDF_StreamAcc contentStream; | 167 CPDF_StreamAcc contentStream; |
164 contentStream.LoadAllData(pStream); | 168 contentStream.LoadAllData(pStream); |
165 ProcessForm(buf, contentStream.GetData(), contentStream.GetSize(), matrix); | 169 ProcessForm(buf, contentStream.GetData(), contentStream.GetSize(), matrix); |
166 } | 170 } |
167 CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, nullptr); | 171 CPDF_Stream* pStream = new CPDF_Stream; |
168 pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE); | 172 pStream->SetData(buf.GetBuffer(), buf.GetLength()); |
169 m_pDocument->AddIndirectObject(pStream); | 173 m_pDocument->AddIndirectObject(pStream); |
170 m_pPage->m_pFormDict->SetReferenceFor("Contents", m_pDocument, | 174 m_pPage->m_pFormDict->SetReferenceFor("Contents", m_pDocument, |
171 pStream->GetObjNum()); | 175 pStream->GetObjNum()); |
172 } | 176 } |
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