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Side by Side Diff: core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp

Issue 1265503005: clang-format all pdfium code. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: sigh Created 5 years, 4 months ago
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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 "../../../include/fpdfapi/fpdf_page.h" 7 #include "../../../include/fpdfapi/fpdf_page.h"
8 #include "../../../include/fpdfapi/fpdf_serial.h" 8 #include "../../../include/fpdfapi/fpdf_serial.h"
9 #include "../../../include/fpdfapi/fpdf_module.h" 9 #include "../../../include/fpdfapi/fpdf_module.h"
10 #include "../fpdf_page/pageint.h" 10 #include "../fpdf_page/pageint.h"
11 11
12 CFX_ByteTextBuf& operator << (CFX_ByteTextBuf& ar, CFX_AffineMatrix& matrix) 12 CFX_ByteTextBuf& operator<<(CFX_ByteTextBuf& ar, CFX_AffineMatrix& matrix) {
13 { 13 ar << matrix.a << " " << matrix.b << " " << matrix.c << " " << matrix.d << " "
14 ar << matrix.a << " " << matrix.b << " " << matrix.c << " " << matrix.d << " " << matrix.e << " " << matrix.f; 14 << matrix.e << " " << matrix.f;
15 return ar; 15 return ar;
16 } 16 }
17 CPDF_PageContentGenerate::CPDF_PageContentGenerate(CPDF_Page* pPage) : m_pPage(p Page) 17 CPDF_PageContentGenerate::CPDF_PageContentGenerate(CPDF_Page* pPage)
18 { 18 : m_pPage(pPage) {
19 m_pDocument = NULL; 19 m_pDocument = NULL;
20 if (m_pPage) { 20 if (m_pPage) {
21 m_pDocument = m_pPage->m_pDocument; 21 m_pDocument = m_pPage->m_pDocument;
22 }
23 FX_POSITION pos = pPage->GetFirstObjectPosition();
24 while (pos) {
25 InsertPageObject(pPage->GetNextObject(pos));
26 }
27 }
28 CPDF_PageContentGenerate::~CPDF_PageContentGenerate() {}
29 FX_BOOL CPDF_PageContentGenerate::InsertPageObject(
30 CPDF_PageObject* pPageObject) {
31 if (!pPageObject) {
32 return FALSE;
33 }
34 return m_pageObjects.Add(pPageObject);
35 }
36 void CPDF_PageContentGenerate::GenerateContent() {
37 CFX_ByteTextBuf buf;
38 CPDF_Dictionary* pPageDict = m_pPage->m_pFormDict;
39 for (int i = 0; i < m_pageObjects.GetSize(); ++i) {
40 CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_pageObjects[i];
41 if (!pPageObj || pPageObj->m_Type != PDFPAGE_IMAGE) {
42 continue;
22 } 43 }
23 FX_POSITION pos = pPage->GetFirstObjectPosition(); 44 ProcessImage(buf, (CPDF_ImageObject*)pPageObj);
24 while (pos) { 45 }
25 InsertPageObject(pPage->GetNextObject(pos)); 46 CPDF_Object* pContent =
47 pPageDict ? pPageDict->GetElementValue("Contents") : NULL;
48 if (pContent != NULL) {
49 pPageDict->RemoveAt("Contents");
50 }
51 CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
52 pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE);
53 m_pDocument->AddIndirectObject(pStream);
54 pPageDict->SetAtReference("Contents", m_pDocument, pStream->GetObjNum());
55 }
56 CFX_ByteString CPDF_PageContentGenerate::RealizeResource(
57 CPDF_Object* pResourceObj,
58 const FX_CHAR* szType) {
59 if (m_pPage->m_pResources == NULL) {
60 m_pPage->m_pResources = new CPDF_Dictionary;
61 int objnum = m_pDocument->AddIndirectObject(m_pPage->m_pResources);
62 m_pPage->m_pFormDict->SetAtReference("Resources", m_pDocument, objnum);
63 }
64 CPDF_Dictionary* pResList = m_pPage->m_pResources->GetDict(szType);
65 if (pResList == NULL) {
66 pResList = new CPDF_Dictionary;
67 m_pPage->m_pResources->SetAt(szType, pResList);
68 }
69 m_pDocument->AddIndirectObject(pResourceObj);
70 CFX_ByteString name;
71 int idnum = 1;
72 while (1) {
73 name.Format("FX%c%d", szType[0], idnum);
74 if (!pResList->KeyExist(name)) {
75 break;
26 } 76 }
77 idnum++;
78 }
79 pResList->AddReference(name, m_pDocument, pResourceObj->GetObjNum());
80 return name;
27 } 81 }
28 CPDF_PageContentGenerate::~CPDF_PageContentGenerate() 82 void CPDF_PageContentGenerate::ProcessImage(CFX_ByteTextBuf& buf,
29 { 83 CPDF_ImageObject* pImageObj) {
84 if ((pImageObj->m_Matrix.a == 0 && pImageObj->m_Matrix.b == 0) ||
85 (pImageObj->m_Matrix.c == 0 && pImageObj->m_Matrix.d == 0)) {
86 return;
87 }
88 buf << "q " << pImageObj->m_Matrix << " cm ";
89 if (!pImageObj->m_pImage->IsInline()) {
90 CPDF_Stream* pStream = pImageObj->m_pImage->GetStream();
91 FX_DWORD dwSavedObjNum = pStream->GetObjNum();
92 CFX_ByteString name = RealizeResource(pStream, "XObject");
93 if (dwSavedObjNum == 0) {
94 if (pImageObj->m_pImage)
95 pImageObj->m_pImage->Release();
96 pImageObj->m_pImage = m_pDocument->GetPageData()->GetImage(pStream);
97 }
98 buf << "/" << PDF_NameEncode(name) << " Do Q\n";
99 }
30 } 100 }
31 FX_BOOL CPDF_PageContentGenerate::InsertPageObject(CPDF_PageObject* pPageObject) 101 void CPDF_PageContentGenerate::ProcessForm(CFX_ByteTextBuf& buf,
32 { 102 const uint8_t* data,
33 if (!pPageObject) { 103 FX_DWORD size,
34 return FALSE; 104 CFX_Matrix& matrix) {
105 if (!data || !size) {
106 return;
107 }
108 CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
109 CPDF_Dictionary* pFormDict = CPDF_Dictionary::Create();
110 pFormDict->SetAtName("Type", "XObject");
111 pFormDict->SetAtName("Subtype", "Form");
112 CFX_FloatRect bbox = m_pPage->GetPageBBox();
113 matrix.TransformRect(bbox);
114 pFormDict->SetAtRect("BBox", bbox);
115 pStream->InitStream((uint8_t*)data, size, pFormDict);
116 buf << "q " << matrix << " cm ";
117 CFX_ByteString name = RealizeResource(pStream, "XObject");
118 buf << "/" << PDF_NameEncode(name) << " Do Q\n";
119 }
120 void CPDF_PageContentGenerate::TransformContent(CFX_Matrix& matrix) {
121 CPDF_Dictionary* pDict = m_pPage->m_pFormDict;
122 CPDF_Object* pContent = pDict ? pDict->GetElementValue("Contents") : NULL;
123 if (!pContent) {
124 return;
125 }
126 CFX_ByteTextBuf buf;
127 int type = pContent->GetType();
128 if (type == PDFOBJ_ARRAY) {
129 CPDF_Array* pArray = (CPDF_Array*)pContent;
130 int iCount = pArray->GetCount();
131 CPDF_StreamAcc** pContentArray =
132 (CPDF_StreamAcc**)FX_Alloc(CPDF_StreamAcc*, iCount);
133 int size = 0;
134 int i = 0;
135 for (i = 0; i < iCount; ++i) {
136 pContent = pArray->GetElement(i);
137 if (!pContent || pContent->GetType() != PDFOBJ_STREAM) {
138 continue;
139 }
140 CPDF_StreamAcc* pStream = new CPDF_StreamAcc();
141 pStream->LoadAllData((CPDF_Stream*)pContent);
142 pContentArray[i] = pStream;
143 size += pContentArray[i]->GetSize() + 1;
35 } 144 }
36 return m_pageObjects.Add(pPageObject); 145 int pos = 0;
146 uint8_t* pBuf = FX_Alloc(uint8_t, size);
147 for (i = 0; i < iCount; ++i) {
148 FXSYS_memcpy(pBuf + pos, pContentArray[i]->GetData(),
149 pContentArray[i]->GetSize());
150 pos += pContentArray[i]->GetSize() + 1;
151 pBuf[pos - 1] = ' ';
152 delete pContentArray[i];
153 }
154 ProcessForm(buf, pBuf, size, matrix);
155 FX_Free(pBuf);
156 FX_Free(pContentArray);
157 } else if (type == PDFOBJ_STREAM) {
158 CPDF_StreamAcc contentStream;
159 contentStream.LoadAllData((CPDF_Stream*)pContent);
160 ProcessForm(buf, contentStream.GetData(), contentStream.GetSize(), matrix);
161 }
162 CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
163 pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE);
164 m_pDocument->AddIndirectObject(pStream);
165 m_pPage->m_pFormDict->SetAtReference("Contents", m_pDocument,
166 pStream->GetObjNum());
37 } 167 }
38 void CPDF_PageContentGenerate::GenerateContent()
39 {
40 CFX_ByteTextBuf buf;
41 CPDF_Dictionary* pPageDict = m_pPage->m_pFormDict;
42 for (int i = 0; i < m_pageObjects.GetSize(); ++i) {
43 CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_pageObjects[i];
44 if (!pPageObj || pPageObj->m_Type != PDFPAGE_IMAGE) {
45 continue;
46 }
47 ProcessImage(buf, (CPDF_ImageObject*)pPageObj);
48 }
49 CPDF_Object* pContent = pPageDict ? pPageDict->GetElementValue("Contents") : NULL;
50 if (pContent != NULL) {
51 pPageDict->RemoveAt("Contents");
52 }
53 CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
54 pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE);
55 m_pDocument->AddIndirectObject(pStream);
56 pPageDict->SetAtReference("Contents", m_pDocument, pStream->GetObjNum());
57 }
58 CFX_ByteString CPDF_PageContentGenerate::RealizeResource(CPDF_Object* pResourceO bj, const FX_CHAR* szType)
59 {
60 if (m_pPage->m_pResources == NULL) {
61 m_pPage->m_pResources = new CPDF_Dictionary;
62 int objnum = m_pDocument->AddIndirectObject(m_pPage->m_pResources);
63 m_pPage->m_pFormDict->SetAtReference("Resources", m_pDocument, objnum);
64 }
65 CPDF_Dictionary* pResList = m_pPage->m_pResources->GetDict(szType);
66 if (pResList == NULL) {
67 pResList = new CPDF_Dictionary;
68 m_pPage->m_pResources->SetAt(szType, pResList);
69 }
70 m_pDocument->AddIndirectObject(pResourceObj);
71 CFX_ByteString name;
72 int idnum = 1;
73 while (1) {
74 name.Format("FX%c%d", szType[0], idnum);
75 if (!pResList->KeyExist(name)) {
76 break;
77 }
78 idnum ++;
79 }
80 pResList->AddReference(name, m_pDocument, pResourceObj->GetObjNum());
81 return name;
82 }
83 void CPDF_PageContentGenerate::ProcessImage(CFX_ByteTextBuf& buf, CPDF_ImageObje ct* pImageObj)
84 {
85 if ((pImageObj->m_Matrix.a == 0 && pImageObj->m_Matrix.b == 0) ||
86 (pImageObj->m_Matrix.c == 0 && pImageObj->m_Matrix.d == 0)) {
87 return;
88 }
89 buf << "q " << pImageObj->m_Matrix << " cm ";
90 if (!pImageObj->m_pImage->IsInline()) {
91 CPDF_Stream* pStream = pImageObj->m_pImage->GetStream();
92 FX_DWORD dwSavedObjNum = pStream->GetObjNum();
93 CFX_ByteString name = RealizeResource(pStream, "XObject");
94 if (dwSavedObjNum == 0) {
95 if (pImageObj->m_pImage)
96 pImageObj->m_pImage->Release();
97 pImageObj->m_pImage = m_pDocument->GetPageData()->GetImage(pStream);
98 }
99 buf << "/" << PDF_NameEncode(name) << " Do Q\n";
100 }
101 }
102 void CPDF_PageContentGenerate::ProcessForm(CFX_ByteTextBuf& buf, const uint8_t* data, FX_DWORD size, CFX_Matrix& matrix)
103 {
104 if (!data || !size) {
105 return;
106 }
107 CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
108 CPDF_Dictionary* pFormDict = CPDF_Dictionary::Create();
109 pFormDict->SetAtName("Type", "XObject");
110 pFormDict->SetAtName("Subtype", "Form");
111 CFX_FloatRect bbox = m_pPage->GetPageBBox();
112 matrix.TransformRect(bbox);
113 pFormDict->SetAtRect("BBox", bbox);
114 pStream->InitStream((uint8_t*)data, size, pFormDict);
115 buf << "q " << matrix << " cm ";
116 CFX_ByteString name = RealizeResource(pStream, "XObject");
117 buf << "/" << PDF_NameEncode(name) << " Do Q\n";
118 }
119 void CPDF_PageContentGenerate::TransformContent(CFX_Matrix& matrix)
120 {
121 CPDF_Dictionary* pDict = m_pPage->m_pFormDict;
122 CPDF_Object* pContent = pDict ? pDict->GetElementValue("Contents") : NULL;
123 if (!pContent) {
124 return;
125 }
126 CFX_ByteTextBuf buf;
127 int type = pContent->GetType();
128 if (type == PDFOBJ_ARRAY) {
129 CPDF_Array* pArray = (CPDF_Array*)pContent;
130 int iCount = pArray->GetCount();
131 CPDF_StreamAcc** pContentArray = (CPDF_StreamAcc**)FX_Alloc(CPDF_StreamA cc*, iCount);
132 int size = 0;
133 int i = 0;
134 for (i = 0; i < iCount; ++i) {
135 pContent = pArray->GetElement(i);
136 if (!pContent || pContent->GetType() != PDFOBJ_STREAM) {
137 continue;
138 }
139 CPDF_StreamAcc* pStream = new CPDF_StreamAcc();
140 pStream->LoadAllData((CPDF_Stream*)pContent);
141 pContentArray[i] = pStream;
142 size += pContentArray[i]->GetSize() + 1;
143 }
144 int pos = 0;
145 uint8_t* pBuf = FX_Alloc(uint8_t, size);
146 for (i = 0; i < iCount; ++i) {
147 FXSYS_memcpy(pBuf + pos, pContentArray[i]->GetData(), pContentArray[ i]->GetSize());
148 pos += pContentArray[i]->GetSize() + 1;
149 pBuf[pos - 1] = ' ';
150 delete pContentArray[i];
151 }
152 ProcessForm(buf, pBuf, size, matrix);
153 FX_Free(pBuf);
154 FX_Free(pContentArray);
155 } else if (type == PDFOBJ_STREAM) {
156 CPDF_StreamAcc contentStream;
157 contentStream.LoadAllData((CPDF_Stream*)pContent);
158 ProcessForm(buf, contentStream.GetData(), contentStream.GetSize(), matri x);
159 }
160 CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
161 pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE);
162 m_pDocument->AddIndirectObject(pStream);
163 m_pPage->m_pFormDict->SetAtReference("Contents", m_pDocument, pStream->GetOb jNum());
164 }
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