OLD | NEW |
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/fsdk_define.h" | 7 #include "../include/fsdk_define.h" |
8 #include "../include/fpdf_flatten.h" | 8 #include "../include/fpdf_flatten.h" |
9 | 9 |
10 typedef CFX_ArrayTemplate<CPDF_Dictionary*> CPDF_ObjectArray; | 10 typedef CFX_ArrayTemplate<CPDF_Dictionary*> CPDF_ObjectArray; |
11 typedef CFX_ArrayTemplate<CPDF_Rect> CPDF_RectArray; | 11 typedef CFX_ArrayTemplate<CPDF_Rect> CPDF_RectArray; |
12 | 12 |
13 enum FPDF_TYPE { MAX, MIN }; | 13 enum FPDF_TYPE { MAX, MIN }; |
14 enum FPDF_VALUE { TOP, LEFT, RIGHT, BOTTOM }; | 14 enum FPDF_VALUE { TOP, LEFT, RIGHT, BOTTOM }; |
15 | 15 |
16 FX_BOOL IsValiableRect(CPDF_Rect rect, CPDF_Rect rcPage) | 16 FX_BOOL IsValiableRect(CPDF_Rect rect, CPDF_Rect rcPage) { |
17 { | 17 if (rect.left - rect.right > 0.000001f || rect.bottom - rect.top > 0.000001f) |
18 if ( rect.left - rect.right > 0.000001f || | 18 return FALSE; |
19 rect.bottom - rect.top > 0.000001f) | 19 |
20 return FALSE; | 20 if (rect.left == 0.0f && rect.top == 0.0f && rect.right == 0.0f && |
21 | 21 rect.bottom == 0.0f) |
22 if (rect.left == 0.0f && | 22 return FALSE; |
23 rect.top == 0.0f && | 23 |
24 rect.right == 0.0f && | 24 if (!rcPage.IsEmpty()) { |
25 rect.bottom == 0.0f) | 25 if (rect.left - rcPage.left < -10.000001f || |
26 return FALSE; | 26 rect.right - rcPage.right > 10.000001f || |
27 | 27 rect.top - rcPage.top > 10.000001f || |
28 if (!rcPage.IsEmpty()) | 28 rect.bottom - rcPage.bottom < -10.000001f) |
29 { | 29 return FALSE; |
30 if (rect.left - rcPage.left < -10.000001f || | 30 } |
31 rect.right - rcPage.right > 10.000001f || | 31 |
32 rect.top - rcPage.top > 10.000001f || | 32 return TRUE; |
33 rect.bottom - rcPage.bottom < -10.000001f) | 33 } |
34 return FALSE; | 34 |
35 } | 35 FX_BOOL GetContentsRect(CPDF_Document* pDoc, |
36 | 36 CPDF_Dictionary* pDict, |
37 return TRUE; | 37 CPDF_RectArray* pRectArray) { |
38 } | 38 CPDF_Page* pPDFPage = FX_NEW CPDF_Page; |
39 | 39 pPDFPage->Load(pDoc, pDict, FALSE); |
40 | 40 pPDFPage->ParseContent(); |
41 FX_BOOL GetContentsRect( CPDF_Document * pDoc, CPDF_Dictionary* pDict, CPDF_Rect
Array * pRectArray ) | 41 |
42 { | 42 FX_POSITION pos = pPDFPage->GetFirstObjectPosition(); |
43 CPDF_Page* pPDFPage = FX_NEW CPDF_Page; | 43 |
44 pPDFPage->Load( pDoc, pDict, FALSE ); | 44 while (pos) { |
45 pPDFPage->ParseContent(); | 45 CPDF_PageObject* pPageObject = pPDFPage->GetNextObject(pos); |
46 | 46 if (!pPageObject) |
47 FX_POSITION pos = pPDFPage->GetFirstObjectPosition(); | 47 continue; |
48 | 48 |
49 while (pos) | 49 CPDF_Rect rc; |
50 { | 50 rc.left = pPageObject->m_Left; |
51 CPDF_PageObject* pPageObject = pPDFPage->GetNextObject(pos); | 51 rc.right = pPageObject->m_Right; |
52 if (!pPageObject)continue; | 52 rc.bottom = pPageObject->m_Bottom; |
53 | 53 rc.top = pPageObject->m_Top; |
54 CPDF_Rect rc; | 54 |
55 rc.left = pPageObject->m_Left; | 55 if (IsValiableRect(rc, pDict->GetRect("MediaBox"))) { |
56 rc.right = pPageObject->m_Right; | 56 pRectArray->Add(rc); |
57 rc.bottom = pPageObject->m_Bottom; | 57 } |
58 rc.top = pPageObject->m_Top; | 58 } |
59 | 59 |
60 if (IsValiableRect(rc, pDict->GetRect("MediaBox"))) | 60 delete pPDFPage; |
61 { | 61 return TRUE; |
62 pRectArray->Add(rc); | 62 } |
63 } | 63 |
64 } | 64 void ParserStream(CPDF_Dictionary* pPageDic, |
65 | 65 CPDF_Dictionary* pStream, |
66 delete pPDFPage; | 66 CPDF_RectArray* pRectArray, |
67 return TRUE; | 67 CPDF_ObjectArray* pObjectArray) { |
68 } | 68 if (!pStream) |
69 | 69 return; |
70 | 70 CPDF_Rect rect; |
71 void ParserStream( CPDF_Dictionary * pPageDic, CPDF_Dictionary* pStream, CPDF_Re
ctArray * pRectArray, CPDF_ObjectArray * pObjectArray ) | 71 if (pStream->KeyExist("Rect")) |
72 { | 72 rect = pStream->GetRect("Rect"); |
73 if (!pStream)return; | 73 else if (pStream->KeyExist("BBox")) |
74 CPDF_Rect rect; | 74 rect = pStream->GetRect("BBox"); |
75 if (pStream->KeyExist("Rect")) | 75 |
76 rect = pStream->GetRect("Rect"); | 76 if (IsValiableRect(rect, pPageDic->GetRect("MediaBox"))) |
77 else if (pStream->KeyExist("BBox")) | 77 pRectArray->Add(rect); |
78 rect = pStream->GetRect("BBox"); | 78 |
79 | 79 pObjectArray->Add(pStream); |
80 if (IsValiableRect(rect, pPageDic->GetRect("MediaBox"))) | 80 } |
81 pRectArray->Add(rect); | 81 |
82 | 82 int ParserAnnots(CPDF_Document* pSourceDoc, |
83 pObjectArray->Add(pStream); | 83 CPDF_Dictionary* pPageDic, |
84 } | 84 CPDF_RectArray* pRectArray, |
85 | 85 CPDF_ObjectArray* pObjectArray, |
86 | 86 int nUsage) { |
87 int ParserAnnots( CPDF_Document* pSourceDoc, CPDF_Dictionary * pPageDic, CPDF_Re
ctArray * pRectArray, CPDF_ObjectArray * pObjectArray, int nUsage) | 87 if (!pSourceDoc || !pPageDic) |
88 { | 88 return FLATTEN_FAIL; |
89 if (!pSourceDoc || !pPageDic) return FLATTEN_FAIL; | 89 |
90 | 90 GetContentsRect(pSourceDoc, pPageDic, pRectArray); |
91 GetContentsRect( pSourceDoc, pPageDic, pRectArray ); | 91 CPDF_Array* pAnnots = pPageDic->GetArray("Annots"); |
92 CPDF_Array* pAnnots = pPageDic->GetArray("Annots"); | 92 if (pAnnots) { |
93 if (pAnnots) | 93 FX_DWORD dwSize = pAnnots->GetCount(); |
94 { | 94 |
95 FX_DWORD dwSize = pAnnots->GetCount(); | 95 for (int i = 0; i < (int)dwSize; i++) { |
96 | 96 CPDF_Object* pObj = pAnnots->GetElementValue(i); |
97 for (int i = 0; i < (int)dwSize; i++) | 97 |
98 { | 98 if (!pObj) |
99 CPDF_Object* pObj = pAnnots->GetElementValue(i); | 99 continue; |
100 | 100 |
101 if (!pObj)continue; | 101 if (pObj->GetType() == PDFOBJ_DICTIONARY) { |
102 | 102 CPDF_Dictionary* pAnnotDic = (CPDF_Dictionary*)pObj; |
103 if (pObj->GetType() == PDFOBJ_DICTIONARY) | 103 CFX_ByteString sSubtype = pAnnotDic->GetString("Subtype"); |
104 { | 104 if (sSubtype == "Popup") |
105 CPDF_Dictionary* pAnnotDic = (CPDF_Dictionary*)p
Obj; | 105 continue; |
106 CFX_ByteString sSubtype = pAnnotDic->GetString("
Subtype"); | 106 |
107 if (sSubtype == "Popup")continue; | 107 int nAnnotFlag = pAnnotDic->GetInteger("F"); |
108 | 108 |
109 int nAnnotFlag = pAnnotDic->GetInteger("F"); | 109 if (nAnnotFlag & ANNOTFLAG_HIDDEN) |
110 | 110 continue; |
111 if(nAnnotFlag & ANNOTFLAG_HIDDEN) | 111 if (nUsage == FLAT_NORMALDISPLAY) { |
112 continue; | 112 if (nAnnotFlag & ANNOTFLAG_INVISIBLE) |
113 if(nUsage == FLAT_NORMALDISPLAY) | 113 continue; |
114 { | 114 ParserStream(pPageDic, pAnnotDic, pRectArray, pObjectArray); |
115 if(nAnnotFlag & ANNOTFLAG_INVISIBLE) | 115 } else { |
116 continue; | 116 if (nAnnotFlag & ANNOTFLAG_PRINT) |
117 ParserStream( pPageDic, pAnnotDic, pRect
Array, pObjectArray ); | 117 ParserStream(pPageDic, pAnnotDic, pRectArray, pObjectArray); |
118 } | 118 } |
119 else | 119 } |
120 { | 120 } |
121 if(nAnnotFlag & ANNOTFLAG_PRINT) | 121 return FLATTEN_SUCCESS; |
122 ParserStream( pPageDic, pAnnotDi
c, pRectArray, pObjectArray ); | 122 } else { |
123 } | 123 return FLATTEN_NOTINGTODO; |
124 } | 124 } |
125 } | 125 } |
126 return FLATTEN_SUCCESS; | 126 |
127 }else{ | 127 FX_FLOAT GetMinMaxValue(CPDF_RectArray& array, |
128 return FLATTEN_NOTINGTODO; | 128 FPDF_TYPE type, |
129 } | 129 FPDF_VALUE value) { |
130 } | 130 int nRects = array.GetSize(); |
131 | 131 FX_FLOAT fRet = 0.0f; |
132 | 132 |
133 FX_FLOAT GetMinMaxValue( CPDF_RectArray& array, FPDF_TYPE type, FPDF_VALUE value
) | 133 if (nRects <= 0) |
134 { | 134 return 0.0f; |
135 int nRects = array.GetSize(); | 135 |
136 FX_FLOAT fRet = 0.0f; | 136 FX_FLOAT* pArray = new FX_FLOAT[nRects]; |
137 | 137 switch (value) { |
138 if (nRects <= 0)return 0.0f; | 138 case LEFT: { |
139 | 139 for (int i = 0; i < nRects; i++) |
140 FX_FLOAT* pArray = new FX_FLOAT[nRects]; | 140 pArray[i] = CPDF_Rect(array.GetAt(i)).left; |
141 switch(value) | 141 |
142 { | 142 break; |
143 case LEFT: | 143 } |
144 { | 144 case TOP: { |
145 for (int i = 0; i < nRects; i++) | 145 for (int i = 0; i < nRects; i++) |
146 pArray[i] = CPDF_Rect(array.GetAt(i)).left; | 146 pArray[i] = CPDF_Rect(array.GetAt(i)).top; |
147 | 147 |
148 break; | 148 break; |
149 } | 149 } |
150 case TOP: | 150 case RIGHT: { |
151 { | 151 for (int i = 0; i < nRects; i++) |
152 for (int i = 0; i < nRects; i++) | 152 pArray[i] = CPDF_Rect(array.GetAt(i)).right; |
153 pArray[i] = CPDF_Rect(array.GetAt(i)).top; | 153 |
154 | 154 break; |
155 break; | 155 } |
156 } | 156 case BOTTOM: { |
157 case RIGHT: | 157 for (int i = 0; i < nRects; i++) |
158 { | 158 pArray[i] = CPDF_Rect(array.GetAt(i)).bottom; |
159 for (int i = 0; i < nRects; i++) | 159 |
160 pArray[i] = CPDF_Rect(array.GetAt(i)).right; | 160 break; |
161 | 161 } |
162 break; | 162 default: |
163 } | 163 break; |
164 case BOTTOM: | 164 } |
165 { | 165 fRet = pArray[0]; |
166 for (int i = 0; i < nRects; i++) | 166 if (type == MAX) { |
167 pArray[i] = CPDF_Rect(array.GetAt(i)).bottom; | 167 for (int i = 1; i < nRects; i++) |
168 | 168 if (fRet <= pArray[i]) |
169 break; | 169 fRet = pArray[i]; |
170 } | 170 } else { |
171 default: | 171 for (int i = 1; i < nRects; i++) |
172 break; | 172 if (fRet >= pArray[i]) |
173 } | 173 fRet = pArray[i]; |
174 fRet = pArray[0]; | 174 } |
175 if (type == MAX) | 175 delete[] pArray; |
176 { | 176 return fRet; |
177 for (int i = 1; i < nRects; i++) | 177 } |
178 if (fRet <= pArray[i]) | 178 |
179 fRet = pArray[i]; | 179 CPDF_Rect CalculateRect(CPDF_RectArray* pRectArray) { |
180 } | 180 CPDF_Rect rcRet; |
181 else | 181 |
182 { | 182 rcRet.left = GetMinMaxValue(*pRectArray, MIN, LEFT); |
183 for (int i = 1; i < nRects; i++) | 183 rcRet.top = GetMinMaxValue(*pRectArray, MAX, TOP); |
184 if (fRet >= pArray[i]) | 184 rcRet.right = GetMinMaxValue(*pRectArray, MAX, RIGHT); |
185 fRet = pArray[i]; | 185 rcRet.bottom = GetMinMaxValue(*pRectArray, MIN, BOTTOM); |
186 } | 186 |
187 delete[] pArray; | 187 return rcRet; |
188 return fRet; | 188 } |
189 } | 189 |
190 | 190 void SetPageContents(CFX_ByteString key, |
191 CPDF_Rect CalculateRect( CPDF_RectArray * pRectArray ) | 191 CPDF_Dictionary* pPage, |
192 { | 192 CPDF_Document* pDocument) { |
193 | 193 CPDF_Object* pContentsObj = pPage->GetStream("Contents"); |
194 CPDF_Rect rcRet; | 194 if (!pContentsObj) { |
195 | 195 pContentsObj = pPage->GetArray("Contents"); |
196 rcRet.left = GetMinMaxValue(*pRectArray, MIN, LEFT); | 196 } |
197 rcRet.top = GetMinMaxValue(*pRectArray, MAX, TOP); | 197 |
198 rcRet.right = GetMinMaxValue(*pRectArray, MAX, RIGHT); | 198 if (!pContentsObj) { |
199 rcRet.bottom = GetMinMaxValue(*pRectArray, MIN, BOTTOM); | 199 // Create a new contents dictionary |
200 | 200 if (!key.IsEmpty()) { |
201 return rcRet; | 201 CPDF_Stream* pNewContents = |
202 } | 202 FX_NEW CPDF_Stream(NULL, 0, FX_NEW CPDF_Dictionary); |
203 | 203 if (!pNewContents) |
204 | 204 return; |
205 void SetPageContents(CFX_ByteString key, CPDF_Dictionary* pPage, CPDF_Document*
pDocument) | 205 pPage->SetAtReference( |
206 { | 206 "Contents", pDocument, pDocument->AddIndirectObject(pNewContents)); |
207 CPDF_Object* pContentsObj = pPage->GetStream("Contents"); | 207 |
208 if (!pContentsObj) | 208 CFX_ByteString sStream; |
209 { | 209 sStream.Format("q 1 0 0 1 0 0 cm /%s Do Q", (FX_LPCSTR)key); |
210 pContentsObj = pPage->GetArray("Contents"); | 210 pNewContents->SetData( |
211 } | 211 (FX_LPCBYTE)sStream, sStream.GetLength(), FALSE, FALSE); |
212 | 212 } |
213 if (!pContentsObj) | 213 return; |
214 { | 214 } |
215 //Create a new contents dictionary | 215 |
216 if (!key.IsEmpty()) | 216 int iType = pContentsObj->GetType(); |
217 { | 217 CPDF_Array* pContentsArray = NULL; |
218 CPDF_Stream* pNewContents = FX_NEW CPDF_Stream(NULL, 0,
FX_NEW CPDF_Dictionary); | 218 |
219 if (!pNewContents)return; | 219 switch (iType) { |
220 pPage->SetAtReference("Contents", pDocument, pDocument->
AddIndirectObject(pNewContents)); | 220 case PDFOBJ_STREAM: { |
221 | 221 pContentsArray = FX_NEW CPDF_Array; |
222 CFX_ByteString sStream; | 222 CPDF_Stream* pContents = (CPDF_Stream*)pContentsObj; |
223 sStream.Format("q 1 0 0 1 0 0 cm /%s Do Q", (FX_LPCSTR)k
ey); | 223 FX_DWORD dwObjNum = pDocument->AddIndirectObject(pContents); |
224 pNewContents->SetData((FX_LPCBYTE)sStream, sStream.GetLe
ngth(), FALSE, FALSE); | 224 CPDF_StreamAcc acc; |
225 } | 225 acc.LoadAllData(pContents); |
226 return; | 226 CFX_ByteString sStream = "q\n"; |
227 } | 227 CFX_ByteString sBody = |
228 | 228 CFX_ByteString((FX_LPCSTR)acc.GetData(), acc.GetSize()); |
229 int iType = pContentsObj->GetType(); | 229 sStream = sStream + sBody + "\nQ"; |
230 CPDF_Array* pContentsArray = NULL; | 230 pContents->SetData( |
231 | 231 (FX_LPCBYTE)sStream, sStream.GetLength(), FALSE, FALSE); |
232 switch(iType) | 232 pContentsArray->AddReference(pDocument, dwObjNum); |
233 { | 233 break; |
234 case PDFOBJ_STREAM: | 234 } |
235 { | 235 |
236 pContentsArray = FX_NEW CPDF_Array; | 236 case PDFOBJ_ARRAY: { |
237 CPDF_Stream* pContents = (CPDF_Stream*)pContentsObj; | 237 pContentsArray = (CPDF_Array*)pContentsObj; |
238 FX_DWORD dwObjNum = pDocument->AddIndirectObject(pConten
ts); | 238 break; |
239 CPDF_StreamAcc acc; | 239 } |
240 acc.LoadAllData(pContents); | 240 default: |
241 CFX_ByteString sStream = "q\n"; | 241 break; |
242 CFX_ByteString sBody = CFX_ByteString((FX_LPCSTR)acc.Get
Data(), acc.GetSize()); | 242 } |
243 sStream = sStream + sBody + "\nQ"; | 243 |
244 pContents->SetData((FX_LPCBYTE)sStream, sStream.GetLengt
h(), FALSE, FALSE); | 244 if (!pContentsArray) |
245 pContentsArray->AddReference(pDocument, dwObjNum); | 245 return; |
246 break; | 246 |
247 } | 247 FX_DWORD dwObjNum = pDocument->AddIndirectObject(pContentsArray); |
248 | 248 pPage->SetAtReference("Contents", pDocument, dwObjNum); |
249 case PDFOBJ_ARRAY: | 249 |
250 { | 250 if (!key.IsEmpty()) { |
251 pContentsArray = (CPDF_Array*)pContentsObj; | 251 CPDF_Stream* pNewContents = |
252 break; | 252 FX_NEW CPDF_Stream(NULL, 0, FX_NEW CPDF_Dictionary); |
253 } | 253 dwObjNum = pDocument->AddIndirectObject(pNewContents); |
254 default: | 254 pContentsArray->AddReference(pDocument, dwObjNum); |
255 break; | 255 |
256 } | 256 CFX_ByteString sStream; |
257 | 257 sStream.Format("q 1 0 0 1 0 0 cm /%s Do Q", (FX_LPCSTR)key); |
258 if (!pContentsArray)return; | 258 pNewContents->SetData( |
259 | 259 (FX_LPCBYTE)sStream, sStream.GetLength(), FALSE, FALSE); |
260 FX_DWORD dwObjNum = pDocument->AddIndirectObject(pContentsArray); | 260 } |
261 pPage->SetAtReference("Contents", pDocument, dwObjNum); | 261 } |
262 | 262 |
263 if (!key.IsEmpty()) | 263 CFX_AffineMatrix GetMatrix(CPDF_Rect rcAnnot, |
264 { | 264 CPDF_Rect rcStream, |
265 CPDF_Stream* pNewContents = FX_NEW CPDF_Stream(NULL, 0, FX_NEW C
PDF_Dictionary); | 265 CFX_AffineMatrix matrix) { |
266 dwObjNum = pDocument->AddIndirectObject(pNewContents); | 266 if (rcStream.IsEmpty()) |
267 pContentsArray->AddReference(pDocument, dwObjNum); | 267 return CFX_AffineMatrix(); |
268 | 268 |
269 CFX_ByteString sStream; | 269 matrix.TransformRect(rcStream); |
270 sStream.Format("q 1 0 0 1 0 0 cm /%s Do Q", (FX_LPCSTR)key); | 270 rcStream.Normalize(); |
271 pNewContents->SetData((FX_LPCBYTE)sStream, sStream.GetLength(),
FALSE, FALSE); | 271 |
272 } | 272 FX_FLOAT a = rcAnnot.Width() / rcStream.Width(); |
273 } | 273 FX_FLOAT d = rcAnnot.Height() / rcStream.Height(); |
274 | 274 |
275 CFX_AffineMatrix GetMatrix(CPDF_Rect rcAnnot, CPDF_Rect rcStream, CFX_AffineMatr
ix matrix) | 275 FX_FLOAT e = rcAnnot.left - rcStream.left * a; |
276 { | 276 FX_FLOAT f = rcAnnot.bottom - rcStream.bottom * d; |
277 if(rcStream.IsEmpty()) | 277 return CFX_AffineMatrix(a, 0, 0, d, e, f); |
278 return CFX_AffineMatrix(); | 278 } |
279 | 279 |
280 matrix.TransformRect(rcStream); | 280 void GetOffset(FX_FLOAT& fa, |
281 rcStream.Normalize(); | 281 FX_FLOAT& fd, |
282 | 282 FX_FLOAT& fe, |
283 FX_FLOAT a = rcAnnot.Width()/rcStream.Width(); | 283 FX_FLOAT& ff, |
284 FX_FLOAT d = rcAnnot.Height()/rcStream.Height(); | 284 CPDF_Rect rcAnnot, |
285 | 285 CPDF_Rect rcStream, |
286 FX_FLOAT e = rcAnnot.left - rcStream.left * a; | 286 CFX_AffineMatrix matrix) { |
287 FX_FLOAT f = rcAnnot.bottom - rcStream.bottom * d; | 287 FX_FLOAT fStreamWidth = 0.0f; |
288 return CFX_AffineMatrix(a, 0, 0, d, e, f); | 288 FX_FLOAT fStreamHeight = 0.0f; |
289 } | 289 |
290 | 290 if (matrix.a != 0 && matrix.d != 0) { |
291 void GetOffset(FX_FLOAT& fa, FX_FLOAT& fd, FX_FLOAT& fe, FX_FLOAT& ff, CPDF_Rect
rcAnnot, CPDF_Rect rcStream, CFX_AffineMatrix matrix) | 291 fStreamWidth = rcStream.right - rcStream.left; |
292 { | 292 fStreamHeight = rcStream.top - rcStream.bottom; |
293 FX_FLOAT fStreamWidth = 0.0f; | 293 } else { |
294 FX_FLOAT fStreamHeight = 0.0f; | 294 fStreamWidth = rcStream.top - rcStream.bottom; |
295 | 295 fStreamHeight = rcStream.right - rcStream.left; |
296 | 296 } |
297 | 297 |
298 if (matrix.a != 0 && matrix.d != 0) | 298 FX_FLOAT x1 = |
299 { | 299 matrix.a * rcStream.left + matrix.c * rcStream.bottom + matrix.e; |
300 fStreamWidth = rcStream.right - rcStream.left; | 300 FX_FLOAT y1 = |
301 fStreamHeight = rcStream.top - rcStream.bottom; | 301 matrix.b * rcStream.left + matrix.d * rcStream.bottom + matrix.f; |
302 } | 302 FX_FLOAT x2 = matrix.a * rcStream.left + matrix.c * rcStream.top + matrix.e; |
303 else | 303 FX_FLOAT y2 = matrix.b * rcStream.left + matrix.d * rcStream.top + matrix.f; |
304 { | 304 FX_FLOAT x3 = |
305 fStreamWidth = rcStream.top - rcStream.bottom; | 305 matrix.a * rcStream.right + matrix.c * rcStream.bottom + matrix.e; |
306 fStreamHeight = rcStream.right - rcStream.left; | 306 FX_FLOAT y3 = |
307 } | 307 matrix.b * rcStream.right + matrix.d * rcStream.bottom + matrix.f; |
308 | 308 FX_FLOAT x4 = matrix.a * rcStream.right + matrix.c * rcStream.top + matrix.e; |
309 FX_FLOAT x1 = matrix.a * rcStream.left + matrix.c * rcStream.bottom + ma
trix.e; | 309 FX_FLOAT y4 = matrix.b * rcStream.right + matrix.d * rcStream.top + matrix.f; |
310 FX_FLOAT y1 = matrix.b * rcStream.left + matrix.d * rcStream.bottom + ma
trix.f; | 310 |
311 FX_FLOAT x2 = matrix.a * rcStream.left + matrix.c * rcStream.top + matri
x.e; | 311 FX_FLOAT left = FX_MIN(FX_MIN(x1, x2), FX_MIN(x3, x4)); |
312 FX_FLOAT y2 = matrix.b * rcStream.left + matrix.d * rcStream.top + matri
x.f; | 312 FX_FLOAT bottom = FX_MIN(FX_MIN(y1, y2), FX_MIN(y3, y4)); |
313 FX_FLOAT x3 = matrix.a * rcStream.right + matrix.c * rcStream.bottom + m
atrix.e; | 313 |
314 FX_FLOAT y3 = matrix.b * rcStream.right + matrix.d * rcStream.bottom + m
atrix.f; | 314 fa = (rcAnnot.right - rcAnnot.left) / fStreamWidth; |
315 FX_FLOAT x4 = matrix.a * rcStream.right + matrix.c * rcStream.top + matr
ix.e; | 315 fd = (rcAnnot.top - rcAnnot.bottom) / fStreamHeight; |
316 FX_FLOAT y4 = matrix.b * rcStream.right + matrix.d * rcStream.top + matr
ix.f; | 316 fe = rcAnnot.left - left * fa; |
317 | 317 ff = rcAnnot.bottom - bottom * fd; |
318 FX_FLOAT left = FX_MIN(FX_MIN(x1, x2), FX_MIN(x3, x4)); | 318 } |
319 FX_FLOAT bottom = FX_MIN(FX_MIN(y1, y2), FX_MIN(y3, y4)); | 319 |
320 | 320 DLLEXPORT int STDCALL FPDFPage_Flatten(FPDF_PAGE page, int nFlag) { |
321 fa = (rcAnnot.right - rcAnnot.left)/fStreamWidth; | 321 if (!page) { |
322 fd = (rcAnnot.top - rcAnnot.bottom)/fStreamHeight; | 322 return FLATTEN_FAIL; |
323 fe = rcAnnot.left - left * fa; | 323 } |
324 ff = rcAnnot.bottom - bottom * fd; | 324 |
325 } | 325 CPDF_Page* pPage = (CPDF_Page*)(page); |
326 | 326 CPDF_Document* pDocument = pPage->m_pDocument; |
327 | 327 CPDF_Dictionary* pPageDict = pPage->m_pFormDict; |
328 DLLEXPORT int STDCALL FPDFPage_Flatten( FPDF_PAGE page, int nFlag) | 328 |
329 { | 329 if (!pDocument || !pPageDict) { |
330 if (!page) | 330 return FLATTEN_FAIL; |
331 { | 331 } |
332 return FLATTEN_FAIL; | 332 |
333 } | 333 CPDF_ObjectArray ObjectArray; |
334 | 334 CPDF_RectArray RectArray; |
335 CPDF_Page * pPage = (CPDF_Page*)( page ); | 335 |
336 CPDF_Document * pDocument = pPage->m_pDocument; | 336 int iRet = FLATTEN_FAIL; |
337 CPDF_Dictionary * pPageDict = pPage->m_pFormDict; | 337 iRet = ParserAnnots(pDocument, pPageDict, &RectArray, &ObjectArray, nFlag); |
338 | 338 if (iRet == FLATTEN_NOTINGTODO) { |
339 if ( !pDocument || !pPageDict ) | 339 return FLATTEN_NOTINGTODO; |
340 { | 340 } else if (iRet == FLATTEN_FAIL) { |
341 return FLATTEN_FAIL; | 341 return FLATTEN_FAIL; |
342 } | 342 } |
343 | 343 |
344 CPDF_ObjectArray ObjectArray; | 344 CPDF_Rect rcOriginalCB; |
345 CPDF_RectArray RectArray; | 345 CPDF_Rect rcMerger = CalculateRect(&RectArray); |
346 | 346 CPDF_Rect rcOriginalMB = pPageDict->GetRect("MediaBox"); |
347 int iRet = FLATTEN_FAIL; | 347 |
348 iRet = ParserAnnots( pDocument, pPageDict, &RectArray, &ObjectArray, nFl
ag); | 348 if (pPageDict->KeyExist("CropBox")) |
349 if (iRet == FLATTEN_NOTINGTODO) | 349 rcOriginalMB = pPageDict->GetRect("CropBox"); |
350 { | 350 |
351 return FLATTEN_NOTINGTODO; | 351 if (rcOriginalMB.IsEmpty()) { |
352 }else if (iRet == FLATTEN_FAIL) | 352 rcOriginalMB = CPDF_Rect(0.0f, 0.0f, 612.0f, 792.0f); |
353 { | 353 } |
354 return FLATTEN_FAIL; | 354 |
355 } | 355 rcMerger.left = |
356 | 356 rcMerger.left < rcOriginalMB.left ? rcOriginalMB.left : rcMerger.left; |
357 CPDF_Rect rcOriginalCB; | 357 rcMerger.right = |
358 CPDF_Rect rcMerger = CalculateRect( &RectArray ); | 358 rcMerger.right > rcOriginalMB.right ? rcOriginalMB.right : rcMerger.right; |
359 CPDF_Rect rcOriginalMB = pPageDict->GetRect("MediaBox"); | 359 rcMerger.top = |
360 | 360 rcMerger.top > rcOriginalMB.top ? rcOriginalMB.top : rcMerger.top; |
361 if (pPageDict->KeyExist("CropBox")) | 361 rcMerger.bottom = rcMerger.bottom < rcOriginalMB.bottom ? rcOriginalMB.bottom |
362 rcOriginalMB = pPageDict->GetRect("CropBox"); | 362 : rcMerger.bottom; |
363 | 363 |
364 if (rcOriginalMB.IsEmpty()) | 364 if (pPageDict->KeyExist("ArtBox")) |
365 { | 365 rcOriginalCB = pPageDict->GetRect("ArtBox"); |
366 rcOriginalMB = CPDF_Rect(0.0f, 0.0f, 612.0f, 792.0f); | 366 else |
367 } | 367 rcOriginalCB = rcOriginalMB; |
368 | 368 |
369 rcMerger.left = rcMerger.left < rcOriginalMB.left? rcOriginalMB.left : r
cMerger.left; | 369 if (!rcOriginalMB.IsEmpty()) { |
370 rcMerger.right = rcMerger.right > rcOriginalMB.right? rcOriginalMB.right
: rcMerger.right; | 370 CPDF_Array* pMediaBox = FX_NEW CPDF_Array(); |
371 rcMerger.top = rcMerger.top > rcOriginalMB.top? rcOriginalMB.top : rcMer
ger.top; | 371 |
372 rcMerger.bottom = rcMerger.bottom < rcOriginalMB.bottom? rcOriginalMB.bo
ttom : rcMerger.bottom; | 372 pMediaBox->Add(FX_NEW CPDF_Number(rcOriginalMB.left)); |
373 | 373 pMediaBox->Add(FX_NEW CPDF_Number(rcOriginalMB.bottom)); |
374 if (pPageDict->KeyExist("ArtBox")) | 374 pMediaBox->Add(FX_NEW CPDF_Number(rcOriginalMB.right)); |
375 rcOriginalCB = pPageDict->GetRect("ArtBox"); | 375 pMediaBox->Add(FX_NEW CPDF_Number(rcOriginalMB.top)); |
376 else | 376 |
377 rcOriginalCB = rcOriginalMB; | 377 pPageDict->SetAt("MediaBox", pMediaBox); |
378 | 378 } |
379 if (!rcOriginalMB.IsEmpty()) | 379 |
380 { | 380 if (!rcOriginalCB.IsEmpty()) { |
381 CPDF_Array* pMediaBox = FX_NEW CPDF_Array(); | 381 CPDF_Array* pCropBox = FX_NEW CPDF_Array(); |
382 | 382 pCropBox->Add(FX_NEW CPDF_Number(rcOriginalCB.left)); |
383 pMediaBox->Add(FX_NEW CPDF_Number(rcOriginalMB.left)); | 383 pCropBox->Add(FX_NEW CPDF_Number(rcOriginalCB.bottom)); |
384 pMediaBox->Add(FX_NEW CPDF_Number(rcOriginalMB.bottom)); | 384 pCropBox->Add(FX_NEW CPDF_Number(rcOriginalCB.right)); |
385 pMediaBox->Add(FX_NEW CPDF_Number(rcOriginalMB.right)); | 385 pCropBox->Add(FX_NEW CPDF_Number(rcOriginalCB.top)); |
386 pMediaBox->Add(FX_NEW CPDF_Number(rcOriginalMB.top)); | 386 pPageDict->SetAt("ArtBox", pCropBox); |
387 | 387 } |
388 pPageDict->SetAt("MediaBox",pMediaBox); | 388 |
389 } | 389 CPDF_Dictionary* pRes = NULL; |
390 | 390 pRes = pPageDict->GetDict("Resources"); |
391 if (!rcOriginalCB.IsEmpty()) | 391 if (!pRes) { |
392 { | 392 pRes = FX_NEW CPDF_Dictionary; |
393 CPDF_Array* pCropBox = FX_NEW CPDF_Array(); | 393 pPageDict->SetAt("Resources", pRes); |
394 pCropBox->Add(FX_NEW CPDF_Number(rcOriginalCB.left)); | 394 } |
395 pCropBox->Add(FX_NEW CPDF_Number(rcOriginalCB.bottom)); | 395 |
396 pCropBox->Add(FX_NEW CPDF_Number(rcOriginalCB.right)); | 396 CPDF_Stream* pNewXObject = |
397 pCropBox->Add(FX_NEW CPDF_Number(rcOriginalCB.top)); | 397 FX_NEW CPDF_Stream(NULL, 0, FX_NEW CPDF_Dictionary); |
398 pPageDict->SetAt("ArtBox", pCropBox); | 398 FX_DWORD dwObjNum = pDocument->AddIndirectObject(pNewXObject); |
399 } | 399 CPDF_Dictionary* pPageXObject = pRes->GetDict("XObject"); |
400 | 400 if (!pPageXObject) { |
401 CPDF_Dictionary* pRes = NULL; | 401 pPageXObject = FX_NEW CPDF_Dictionary; |
402 pRes = pPageDict->GetDict("Resources"); | 402 pRes->SetAt("XObject", pPageXObject); |
403 if (!pRes) | 403 } |
404 { | 404 |
405 pRes = FX_NEW CPDF_Dictionary; | 405 CFX_ByteString key = ""; |
406 pPageDict->SetAt( "Resources", pRes ); | 406 int nStreams = ObjectArray.GetSize(); |
407 } | 407 |
408 | 408 if (nStreams > 0) { |
409 CPDF_Stream* pNewXObject = FX_NEW CPDF_Stream(NULL, 0, FX_NEW CPDF_Dicti
onary); | 409 for (int iKey = 0; /*iKey < 100*/; iKey++) { |
410 FX_DWORD dwObjNum = pDocument->AddIndirectObject(pNewXObject); | 410 char sExtend[5] = { 0 }; |
411 CPDF_Dictionary* pPageXObject = pRes->GetDict("XObject"); | 411 FXSYS_itoa(iKey, sExtend, 10); |
412 if (!pPageXObject) | 412 key = CFX_ByteString("FFT") + CFX_ByteString(sExtend); |
413 { | 413 |
414 pPageXObject = FX_NEW CPDF_Dictionary; | 414 if (!pPageXObject->KeyExist(key)) |
415 pRes->SetAt("XObject", pPageXObject); | 415 break; |
416 } | 416 } |
417 | 417 } |
418 CFX_ByteString key = ""; | 418 |
419 int nStreams = ObjectArray.GetSize(); | 419 SetPageContents(key, pPageDict, pDocument); |
420 | 420 |
421 if (nStreams > 0) | 421 CPDF_Dictionary* pNewXORes = NULL; |
422 { | 422 |
423 for (int iKey = 0; /*iKey < 100*/; iKey++) | 423 if (!key.IsEmpty()) { |
424 { | 424 pPageXObject->SetAtReference(key, pDocument, dwObjNum); |
425 char sExtend[5] = {0}; | 425 CPDF_Dictionary* pNewOXbjectDic = pNewXObject->GetDict(); |
426 FXSYS_itoa(iKey, sExtend, 10); | 426 pNewXORes = FX_NEW CPDF_Dictionary; |
427 key = CFX_ByteString("FFT") + CFX_ByteString(sExtend); | 427 pNewOXbjectDic->SetAt("Resources", pNewXORes); |
428 | 428 pNewOXbjectDic->SetAtName("Type", "XObject"); |
429 if (!pPageXObject->KeyExist(key)) | 429 pNewOXbjectDic->SetAtName("Subtype", "Form"); |
430 break; | 430 pNewOXbjectDic->SetAtInteger("FormType", 1); |
431 } | 431 pNewOXbjectDic->SetAtName("Name", "FRM"); |
432 } | 432 CPDF_Rect rcBBox = pPageDict->GetRect("ArtBox"); |
433 | 433 pNewOXbjectDic->SetAtRect("BBox", rcBBox); |
434 SetPageContents(key, pPageDict, pDocument); | 434 } |
435 | 435 |
436 CPDF_Dictionary* pNewXORes = NULL; | 436 for (int i = 0; i < nStreams; i++) { |
437 | 437 CPDF_Dictionary* pAnnotDic = ObjectArray.GetAt(i); |
438 if (!key.IsEmpty()) | 438 if (!pAnnotDic) |
439 { | 439 continue; |
440 pPageXObject->SetAtReference(key, pDocument, dwObjNum); | 440 |
441 CPDF_Dictionary* pNewOXbjectDic = pNewXObject->GetDict(); | 441 CPDF_Rect rcAnnot = pAnnotDic->GetRect("Rect"); |
442 pNewXORes = FX_NEW CPDF_Dictionary; | 442 rcAnnot.Normalize(); |
443 pNewOXbjectDic->SetAt("Resources", pNewXORes); | 443 |
444 pNewOXbjectDic->SetAtName("Type", "XObject"); | 444 CFX_ByteString sAnnotState = pAnnotDic->GetString("AS"); |
445 pNewOXbjectDic->SetAtName("Subtype", "Form"); | 445 CPDF_Dictionary* pAnnotAP = pAnnotDic->GetDict("AP"); |
446 pNewOXbjectDic->SetAtInteger("FormType", 1); | 446 if (!pAnnotAP) |
447 pNewOXbjectDic->SetAtName("Name", "FRM"); | 447 continue; |
448 CPDF_Rect rcBBox = pPageDict->GetRect("ArtBox"); | 448 |
449 pNewOXbjectDic->SetAtRect("BBox", rcBBox); | 449 CPDF_Stream* pAPStream = pAnnotAP->GetStream("N"); |
450 } | 450 if (!pAPStream) { |
451 | 451 CPDF_Dictionary* pAPDic = pAnnotAP->GetDict("N"); |
452 for (int i = 0; i < nStreams; i++) | 452 if (!pAPDic) |
453 { | 453 continue; |
454 CPDF_Dictionary* pAnnotDic = ObjectArray.GetAt(i); | 454 |
455 if (!pAnnotDic)continue; | 455 if (!sAnnotState.IsEmpty()) { |
456 | 456 pAPStream = pAPDic->GetStream(sAnnotState); |
457 CPDF_Rect rcAnnot = pAnnotDic->GetRect("Rect"); | 457 } else { |
458 rcAnnot.Normalize(); | 458 FX_POSITION pos = pAPDic->GetStartPos(); |
459 | 459 if (pos) { |
460 CFX_ByteString sAnnotState = pAnnotDic->GetString("AS"); | 460 CFX_ByteString sKey; |
461 CPDF_Dictionary* pAnnotAP = pAnnotDic->GetDict("AP"); | 461 CPDF_Object* pFirstObj = pAPDic->GetNextElement(pos, sKey); |
462 if (!pAnnotAP)continue; | 462 if (pFirstObj) { |
463 | 463 if (pFirstObj->GetType() == PDFOBJ_REFERENCE) |
464 CPDF_Stream* pAPStream = pAnnotAP->GetStream("N"); | 464 pFirstObj = pFirstObj->GetDirect(); |
465 if (!pAPStream) | 465 |
466 { | 466 if (pFirstObj->GetType() != PDFOBJ_STREAM) |
467 CPDF_Dictionary* pAPDic = pAnnotAP->GetDict("N"); | 467 continue; |
468 if (!pAPDic)continue; | 468 |
469 | 469 pAPStream = (CPDF_Stream*)pFirstObj; |
470 if (!sAnnotState.IsEmpty()) | 470 } |
471 { | 471 } |
472 pAPStream = pAPDic->GetStream(sAnnotState); | 472 } |
473 } | 473 } |
474 else | 474 |
475 { | 475 if (!pAPStream) |
476 FX_POSITION pos = pAPDic->GetStartPos(); | 476 continue; |
477 if (pos) | 477 |
478 { | 478 CPDF_Dictionary* pAPDic = pAPStream->GetDict(); |
479 CFX_ByteString sKey; | 479 CFX_AffineMatrix matrix = pAPDic->GetMatrix("Matrix"); |
480 CPDF_Object* pFirstObj = pAPDic->GetNext
Element(pos, sKey); | 480 |
481 if (pFirstObj) | 481 CPDF_Rect rcStream; |
482 { | 482 if (pAPDic->KeyExist("Rect")) |
483 if (pFirstObj->GetType() == PDFO
BJ_REFERENCE) | 483 rcStream = pAPDic->GetRect("Rect"); |
484 pFirstObj = pFirstObj->G
etDirect(); | 484 else if (pAPDic->KeyExist("BBox")) |
485 | 485 rcStream = pAPDic->GetRect("BBox"); |
486 if (pFirstObj->GetType() != PDFO
BJ_STREAM) | 486 |
487 continue; | 487 if (rcStream.IsEmpty()) |
488 | 488 continue; |
489 pAPStream = (CPDF_Stream*)pFirst
Obj; | 489 |
490 } | 490 CPDF_Object* pObj = pAPStream; |
491 } | 491 |
492 } | 492 if (pObj) { |
493 } | 493 CPDF_Dictionary* pObjDic = pObj->GetDict(); |
494 | 494 if (pObjDic) { |
495 if (!pAPStream)continue; | 495 pObjDic->SetAtName("Type", "XObject"); |
496 | 496 pObjDic->SetAtName("Subtype", "Form"); |
497 CPDF_Dictionary* pAPDic = pAPStream->GetDict(); | 497 } |
498 CFX_AffineMatrix matrix = pAPDic->GetMatrix("Matrix"); | 498 } |
499 | 499 |
500 CPDF_Rect rcStream; | 500 CPDF_Dictionary* pXObject = pNewXORes->GetDict("XObject"); |
501 if (pAPDic->KeyExist("Rect")) | 501 if (!pXObject) { |
502 rcStream = pAPDic->GetRect("Rect"); | 502 pXObject = FX_NEW CPDF_Dictionary; |
503 else if (pAPDic->KeyExist("BBox")) | 503 pNewXORes->SetAt("XObject", pXObject); |
504 rcStream = pAPDic->GetRect("BBox"); | 504 } |
505 | 505 |
506 if (rcStream.IsEmpty())continue; | 506 CFX_ByteString sFormName; |
507 | 507 sFormName.Format("F%d", i); |
508 CPDF_Object* pObj = pAPStream; | 508 FX_DWORD dwObjNum = pDocument->AddIndirectObject(pObj); |
509 | 509 pXObject->SetAtReference(sFormName, pDocument, dwObjNum); |
510 if (pObj) | 510 |
511 { | 511 CPDF_StreamAcc acc; |
512 CPDF_Dictionary* pObjDic = pObj->GetDict(); | 512 acc.LoadAllData(pNewXObject); |
513 if (pObjDic) | 513 |
514 { | 514 FX_LPCBYTE pData = acc.GetData(); |
515 pObjDic->SetAtName("Type", "XObject"); | 515 CFX_ByteString sStream(pData, acc.GetSize()); |
516 pObjDic->SetAtName("Subtype", "Form"); | 516 CFX_ByteString sTemp; |
517 } | 517 |
518 } | 518 if (matrix.IsIdentity()) { |
519 | 519 matrix.a = 1.0f; |
520 CPDF_Dictionary* pXObject = pNewXORes->GetDict("XObject"); | 520 matrix.b = 0.0f; |
521 if (!pXObject) | 521 matrix.c = 0.0f; |
522 { | 522 matrix.d = 1.0f; |
523 pXObject = FX_NEW CPDF_Dictionary; | 523 matrix.e = 0.0f; |
524 pNewXORes->SetAt("XObject", pXObject); | 524 matrix.f = 0.0f; |
525 } | 525 } |
526 | 526 |
527 CFX_ByteString sFormName; | 527 CFX_AffineMatrix m = GetMatrix(rcAnnot, rcStream, matrix); |
528 sFormName.Format("F%d", i); | 528 sTemp.Format("q %f 0 0 %f %f %f cm /%s Do Q\n", |
529 FX_DWORD dwObjNum = pDocument->AddIndirectObject(pObj); | 529 m.a, |
530 pXObject->SetAtReference(sFormName, pDocument, dwObjNum); | 530 m.d, |
531 | 531 m.e, |
532 CPDF_StreamAcc acc; | 532 m.f, |
533 acc.LoadAllData(pNewXObject); | 533 (FX_LPCSTR)sFormName); |
534 | 534 sStream += sTemp; |
535 FX_LPCBYTE pData = acc.GetData(); | 535 |
536 CFX_ByteString sStream(pData, acc.GetSize()); | 536 pNewXObject->SetData( |
537 CFX_ByteString sTemp; | 537 (FX_LPCBYTE)sStream, sStream.GetLength(), FALSE, FALSE); |
538 | 538 } |
539 if (matrix.IsIdentity()) | 539 pPageDict->RemoveAt("Annots"); |
540 { | 540 |
541 matrix.a = 1.0f; | 541 ObjectArray.RemoveAll(); |
542 matrix.b = 0.0f; | 542 RectArray.RemoveAll(); |
543 matrix.c = 0.0f; | 543 |
544 matrix.d = 1.0f; | 544 return FLATTEN_SUCCESS; |
545 matrix.e = 0.0f; | 545 } |
546 matrix.f = 0.0f; | |
547 } | |
548 | |
549 CFX_AffineMatrix m = GetMatrix(rcAnnot, rcStream, matrix); | |
550 sTemp.Format("q %f 0 0 %f %f %f cm /%s Do Q\n", m.a, m.d, m.e, m
.f, (FX_LPCSTR)sFormName); | |
551 sStream += sTemp; | |
552 | |
553 pNewXObject->SetData((FX_LPCBYTE)sStream, sStream.GetLength(), F
ALSE, FALSE); | |
554 } | |
555 pPageDict->RemoveAt( "Annots" ); | |
556 | |
557 ObjectArray.RemoveAll(); | |
558 RectArray.RemoveAll(); | |
559 | |
560 return FLATTEN_SUCCESS; | |
561 } | |
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