1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include "../../include/fpdfdoc/fpdf_doc.h" 8 #include "../../include/fpdfapi/fpdf_pageobj.h" 9 CPDF_AnnotList::CPDF_AnnotList(CPDF_Page* pPage) 10 { 11 ASSERT(pPage != NULL); 12 m_pPageDict = pPage->m_pFormDict; 13 if (m_pPageDict == NULL) { 14 return; 15 } 16 m_pDocument = pPage->m_pDocument; 17 CPDF_Array* pAnnots = m_pPageDict->GetArray("Annots"); 18 if (pAnnots == NULL) { 19 return; 20 } 21 CPDF_Dictionary* pRoot = m_pDocument->GetRoot(); 22 CPDF_Dictionary* pAcroForm = pRoot->GetDict("AcroForm"); 23 FX_BOOL bRegenerateAP = pAcroForm && pAcroForm->GetBoolean("NeedAppearances"); 24 for (FX_DWORD i = 0; i < pAnnots->GetCount(); i ++) { 25 CPDF_Dictionary* pDict = (CPDF_Dictionary*)pAnnots->GetElementValue(i); 26 if (pDict == NULL || pDict->GetType() != PDFOBJ_DICTIONARY) { 27 continue; 28 } 29 FX_DWORD dwObjNum = pDict->GetObjNum(); 30 if (dwObjNum == 0) { 31 dwObjNum = m_pDocument->AddIndirectObject(pDict); 32 CPDF_Reference* pAction = CPDF_Reference::Create(m_pDocument, dwObjNum); 33 if (pAction == NULL) { 34 break; 35 } 36 pAnnots->InsertAt(i, pAction); 37 pAnnots->RemoveAt(i + 1); 38 pDict = pAnnots->GetDict(i); 39 } 40 CPDF_Annot* pAnnot = FX_NEW CPDF_Annot(pDict); 41 if (pAnnot == NULL) { 42 break; 43 } 44 pAnnot->m_pList = this; 45 m_AnnotList.Add(pAnnot); 46 if (bRegenerateAP && pDict->GetConstString(FX_BSTRC("Subtype")) == FX_BSTRC("Widget")) 47 if (CPDF_InterForm::UpdatingAPEnabled()) { 48 FPDF_GenerateAP(m_pDocument, pDict); 49 } 50 } 51 } 52 CPDF_AnnotList::~CPDF_AnnotList() 53 { 54 int i = 0; 55 for (i = 0; i < m_AnnotList.GetSize(); i ++) { 56 delete (CPDF_Annot*)m_AnnotList[i]; 57 } 58 for (i = 0; i < m_Borders.GetSize(); ++i) { 59 delete (CPDF_PageObjects*)m_Borders[i]; 60 } 61 } 62 void CPDF_AnnotList::DisplayPass(const CPDF_Page* pPage, CFX_RenderDevice* pDevice, 63 CPDF_RenderContext* pContext, FX_BOOL bPrinting, CFX_AffineMatrix* pMatrix, 64 FX_BOOL bWidgetPass, CPDF_RenderOptions* pOptions, FX_RECT* clip_rect) 65 { 66 for (int i = 0; i < m_AnnotList.GetSize(); i ++) { 67 CPDF_Annot* pAnnot = (CPDF_Annot*)m_AnnotList[i]; 68 FX_BOOL bWidget = pAnnot->GetSubType() == "Widget"; 69 if ((bWidgetPass && !bWidget) || (!bWidgetPass && bWidget)) { 70 continue; 71 } 72 FX_DWORD annot_flags = pAnnot->GetFlags(); 73 if (annot_flags & ANNOTFLAG_HIDDEN) { 74 continue; 75 } 76 if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0) { 77 continue; 78 } 79 if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW)) { 80 continue; 81 } 82 if (pOptions != NULL) { 83 IPDF_OCContext* pOCContext = pOptions->m_pOCContext; 84 CPDF_Dictionary* pAnnotDict = pAnnot->m_pAnnotDict; 85 if (pOCContext != NULL && pAnnotDict != NULL && 86 !pOCContext->CheckOCGVisible(pAnnotDict->GetDict(FX_BSTRC("OC")))) { 87 continue; 88 } 89 } 90 CPDF_Rect annot_rect_f; 91 pAnnot->GetRect(annot_rect_f); 92 CFX_Matrix matrix; 93 matrix = *pMatrix; 94 if (clip_rect) { 95 annot_rect_f.Transform(&matrix); 96 FX_RECT annot_rect = annot_rect_f.GetOutterRect(); 97 annot_rect.Intersect(*clip_rect); 98 if (annot_rect.IsEmpty()) { 99 continue; 100 } 101 } 102 if (pContext) { 103 pAnnot->DrawInContext(pPage, pContext, &matrix, CPDF_Annot::Normal); 104 } else if (!pAnnot->DrawAppearance(pPage, pDevice, &matrix, CPDF_Annot::Normal, pOptions)) { 105 pAnnot->DrawBorder(pDevice, &matrix, pOptions); 106 } 107 } 108 } 109 void CPDF_AnnotList::DisplayAnnots(const CPDF_Page* pPage, CFX_RenderDevice* pDevice, 110 CFX_AffineMatrix* pUser2Device, 111 FX_BOOL bShowWidget, CPDF_RenderOptions* pOptions) 112 { 113 FX_RECT clip_rect; 114 if (pDevice) { 115 clip_rect = pDevice->GetClipBox(); 116 } 117 FX_BOOL bPrinting = pDevice->GetDeviceClass() == FXDC_PRINTER || (pOptions && (pOptions->m_Flags & RENDER_PRINTPREVIEW)); 118 DisplayAnnots(pPage, pDevice, NULL, bPrinting, pUser2Device, bShowWidget ? 3 : 1, pOptions, &clip_rect); 119 } 120 void CPDF_AnnotList::DisplayAnnots(const CPDF_Page* pPage, CFX_RenderDevice* pDevice, CPDF_RenderContext* pContext, 121 FX_BOOL bPrinting, CFX_AffineMatrix* pUser2Device, FX_DWORD dwAnnotFlags, 122 CPDF_RenderOptions* pOptions, FX_RECT* pClipRect) 123 { 124 if (dwAnnotFlags & 0x01) { 125 DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, FALSE, pOptions, pClipRect); 126 } 127 if (dwAnnotFlags & 0x02) { 128 DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, TRUE, pOptions, pClipRect); 129 } 130 } 131 int CPDF_AnnotList::GetIndex(CPDF_Annot* pAnnot) 132 { 133 for (int i = 0; i < m_AnnotList.GetSize(); i ++) 134 if (m_AnnotList[i] == (FX_LPVOID)pAnnot) { 135 return i; 136 } 137 return -1; 138 } 139 CPDF_Annot::CPDF_Annot(CPDF_Dictionary* pDict) 140 { 141 m_pList = NULL; 142 m_pAnnotDict = pDict; 143 } 144 CPDF_Annot::~CPDF_Annot() 145 { 146 ClearCachedAP(); 147 } 148 CPDF_Reference* CPDF_Annot::NewAnnotRef() 149 { 150 if (m_pAnnotDict->GetObjNum() == 0) { 151 m_pList->m_pDocument->AddIndirectObject(m_pAnnotDict); 152 } 153 return CPDF_Reference::Create(m_pList->m_pDocument, m_pAnnotDict->GetObjNum()); 154 } 155 void CPDF_Annot::ClearCachedAP() 156 { 157 FX_POSITION pos = m_APMap.GetStartPosition(); 158 while (pos) { 159 void* pForm; 160 void* pObjects; 161 m_APMap.GetNextAssoc(pos, pForm, pObjects); 162 delete (CPDF_PageObjects*)pObjects; 163 } 164 m_APMap.RemoveAll(); 165 } 166 CFX_ByteString CPDF_Annot::GetSubType() const 167 { 168 return m_pAnnotDict->GetConstString(FX_BSTRC("Subtype")); 169 } 170 void CPDF_Annot::GetRect(CPDF_Rect& rect) const 171 { 172 if (m_pAnnotDict == NULL) { 173 return; 174 } 175 rect = m_pAnnotDict->GetRect("Rect"); 176 rect.Normalize(); 177 } 178 CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict, CPDF_Annot::AppearanceMode mode) 179 { 180 CPDF_Dictionary* pAP = pAnnotDict->GetDict("AP"); 181 if (pAP == NULL) { 182 return NULL; 183 } 184 const FX_CHAR* ap_entry = "N"; 185 if (mode == CPDF_Annot::Down) { 186 ap_entry = "D"; 187 } else if (mode == CPDF_Annot::Rollover) { 188 ap_entry = "R"; 189 } 190 if (!pAP->KeyExist(ap_entry)) { 191 ap_entry = "N"; 192 } 193 CPDF_Object* psub = pAP->GetElementValue(ap_entry); 194 if (psub == NULL) { 195 return NULL; 196 } 197 CPDF_Stream* pStream = NULL; 198 if (psub->GetType() == PDFOBJ_STREAM) { 199 pStream = (CPDF_Stream*)psub; 200 } else if (psub->GetType() == PDFOBJ_DICTIONARY) { 201 CFX_ByteString as = pAnnotDict->GetString("AS"); 202 if (as.IsEmpty()) { 203 CFX_ByteString value = pAnnotDict->GetString(FX_BSTRC("V")); 204 if (value.IsEmpty()) { 205 value = pAnnotDict->GetDict(FX_BSTRC("Parent"))->GetString(FX_BSTRC("V")); 206 } 207 if (value.IsEmpty() || !((CPDF_Dictionary*)psub)->KeyExist(value)) { 208 as = FX_BSTRC("Off"); 209 } else { 210 as = value; 211 } 212 } 213 pStream = ((CPDF_Dictionary*)psub)->GetStream(as); 214 } 215 return pStream; 216 } 217 CPDF_Form* CPDF_Annot::GetAPForm(const CPDF_Page* pPage, AppearanceMode mode) 218 { 219 CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pAnnotDict, mode); 220 if (pStream == NULL) { 221 return NULL; 222 } 223 CPDF_Form* pForm; 224 if (m_APMap.Lookup(pStream, (void*&)pForm)) { 225 return pForm; 226 } 227 pForm = FX_NEW CPDF_Form(m_pList->m_pDocument, pPage->m_pResources, pStream); 228 if (pForm == NULL) { 229 return NULL; 230 } 231 pForm->ParseContent(NULL, NULL, NULL, NULL); 232 m_APMap.SetAt(pStream, pForm); 233 return pForm; 234 } 235 static CPDF_Form* FPDFDOC_Annot_GetMatrix(const CPDF_Page* pPage, CPDF_Annot* pAnnot, CPDF_Annot::AppearanceMode mode, const CFX_AffineMatrix* pUser2Device, CFX_Matrix &matrix) 236 { 237 CPDF_Form* pForm = pAnnot->GetAPForm(pPage, mode); 238 if (!pForm) { 239 return NULL; 240 } 241 CFX_FloatRect form_bbox = pForm->m_pFormDict->GetRect(FX_BSTRC("BBox")); 242 CFX_Matrix form_matrix = pForm->m_pFormDict->GetMatrix(FX_BSTRC("Matrix")); 243 form_matrix.TransformRect(form_bbox); 244 CPDF_Rect arect; 245 pAnnot->GetRect(arect); 246 matrix.MatchRect(arect, form_bbox); 247 matrix.Concat(*pUser2Device); 248 return pForm; 249 } 250 FX_BOOL CPDF_Annot::DrawAppearance(const CPDF_Page* pPage, CFX_RenderDevice* pDevice, const CFX_AffineMatrix* pUser2Device, 251 AppearanceMode mode, const CPDF_RenderOptions* pOptions) 252 { 253 CFX_Matrix matrix; 254 CPDF_Form* pForm = FPDFDOC_Annot_GetMatrix(pPage, this, mode, pUser2Device, matrix); 255 if (!pForm) { 256 return FALSE; 257 } 258 CPDF_RenderContext context; 259 context.Create((CPDF_Page*)pPage); 260 context.DrawObjectList(pDevice, pForm, &matrix, pOptions); 261 return TRUE; 262 } 263 FX_BOOL CPDF_Annot::DrawInContext(const CPDF_Page* pPage, const CPDF_RenderContext* pContext, const CFX_AffineMatrix* pUser2Device, AppearanceMode mode) 264 { 265 CFX_Matrix matrix; 266 CPDF_Form* pForm = FPDFDOC_Annot_GetMatrix(pPage, this, mode, pUser2Device, matrix); 267 if (!pForm) { 268 return FALSE; 269 } 270 ((CPDF_RenderContext*)pContext)->AppendObjectList(pForm, &matrix); 271 return TRUE; 272 } 273 CPDF_PageObject* CPDF_Annot::GetBorder(FX_BOOL bPrint, const CPDF_RenderOptions* pOptions) 274 { 275 if (GetSubType() == "Popup") { 276 return NULL; 277 } 278 FX_DWORD annot_flags = GetFlags(); 279 if (annot_flags & ANNOTFLAG_HIDDEN) { 280 return NULL; 281 } 282 FX_BOOL bPrinting = bPrint || (pOptions && (pOptions->m_Flags & RENDER_PRINTPREVIEW)); 283 if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0) { 284 return NULL; 285 } 286 if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW)) { 287 return NULL; 288 } 289 CPDF_Dictionary* pBS = m_pAnnotDict->GetDict("BS"); 290 char style_char; 291 FX_FLOAT width; 292 CPDF_Array* pDashArray = NULL; 293 if (pBS == NULL) { 294 CPDF_Array* pBorderArray = m_pAnnotDict->GetArray("Border"); 295 style_char = 'S'; 296 if (pBorderArray) { 297 width = pBorderArray->GetNumber(2); 298 if (pBorderArray->GetCount() == 4) { 299 pDashArray = pBorderArray->GetArray(3); 300 if (pDashArray == NULL) { 301 return NULL; 302 } 303 style_char = 'D'; 304 } 305 } else { 306 width = 1; 307 } 308 } else { 309 CFX_ByteString style = pBS->GetString("S"); 310 pDashArray = pBS->GetArray("D"); 311 style_char = style[1]; 312 width = pBS->GetNumber("W"); 313 } 314 if (width <= 0) { 315 return NULL; 316 } 317 CPDF_Array* pColor = m_pAnnotDict->GetArray("C"); 318 FX_DWORD argb = 0xff000000; 319 if (pColor != NULL) { 320 int R = (FX_INT32)(pColor->GetNumber(0) * 255); 321 int G = (FX_INT32)(pColor->GetNumber(1) * 255); 322 int B = (FX_INT32)(pColor->GetNumber(2) * 255); 323 argb = ArgbEncode(0xff, R, G, B); 324 } 325 CPDF_PathObject *pPathObject = FX_NEW CPDF_PathObject(); 326 if (!pPathObject) { 327 return NULL; 328 } 329 CPDF_GraphStateData *pGraphState = pPathObject->m_GraphState.GetModify(); 330 if (!pGraphState) { 331 pPathObject->Release(); 332 return NULL; 333 } 334 pGraphState->m_LineWidth = width; 335 CPDF_ColorStateData *pColorData = pPathObject->m_ColorState.GetModify(); 336 if (!pColorData) { 337 pPathObject->Release(); 338 return NULL; 339 } 340 pColorData->m_StrokeRGB = argb; 341 pPathObject->m_bStroke = TRUE; 342 pPathObject->m_FillType = 0; 343 if (style_char == 'D') { 344 if (pDashArray) { 345 FX_DWORD dash_count = pDashArray->GetCount(); 346 if (dash_count % 2) { 347 dash_count ++; 348 } 349 pGraphState->m_DashArray = FX_Alloc(FX_FLOAT, dash_count); 350 if (pGraphState->m_DashArray == NULL) { 351 pPathObject->Release(); 352 return NULL; 353 } 354 pGraphState->m_DashCount = dash_count; 355 FX_DWORD i; 356 for (i = 0; i < pDashArray->GetCount(); i ++) { 357 pGraphState->m_DashArray[i] = pDashArray->GetNumber(i); 358 } 359 if (i < dash_count) { 360 pGraphState->m_DashArray[i] = pGraphState->m_DashArray[i - 1]; 361 } 362 } else { 363 pGraphState->m_DashArray = FX_Alloc(FX_FLOAT, 2); 364 if (pGraphState->m_DashArray == NULL) { 365 pPathObject->Release(); 366 return NULL; 367 } 368 pGraphState->m_DashCount = 2; 369 pGraphState->m_DashArray[0] = pGraphState->m_DashArray[1] = 3 * 1.0f; 370 } 371 } 372 CFX_FloatRect rect; 373 GetRect(rect); 374 width /= 2; 375 CPDF_PathData *pPathData = pPathObject->m_Path.GetModify(); 376 if (pPathData) { 377 pPathData->AppendRect(rect.left + width, rect.bottom + width, rect.right - width, rect.top - width); 378 } 379 pPathObject->CalcBoundingBox(); 380 return pPathObject; 381 } 382 void CPDF_Annot::DrawBorder(CFX_RenderDevice* pDevice, const CFX_AffineMatrix* pUser2Device, const CPDF_RenderOptions* pOptions) 383 { 384 if (GetSubType() == "Popup") { 385 return; 386 } 387 FX_DWORD annot_flags = GetFlags(); 388 if (annot_flags & ANNOTFLAG_HIDDEN) { 389 return; 390 } 391 FX_BOOL bPrinting = pDevice->GetDeviceClass() == FXDC_PRINTER || (pOptions && (pOptions->m_Flags & RENDER_PRINTPREVIEW)); 392 if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0) { 393 return; 394 } 395 if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW)) { 396 return; 397 } 398 CPDF_Dictionary* pBS = m_pAnnotDict->GetDict("BS"); 399 char style_char; 400 FX_FLOAT width; 401 CPDF_Array* pDashArray = NULL; 402 if (pBS == NULL) { 403 CPDF_Array* pBorderArray = m_pAnnotDict->GetArray("Border"); 404 style_char = 'S'; 405 if (pBorderArray) { 406 width = pBorderArray->GetNumber(2); 407 if (pBorderArray->GetCount() == 4) { 408 pDashArray = pBorderArray->GetArray(3); 409 if (pDashArray == NULL) { 410 return; 411 } 412 int nLen = pDashArray->GetCount(); 413 int i = 0; 414 for (; i < nLen; ++i) { 415 CPDF_Object*pObj = pDashArray->GetElementValue(i); 416 if (pObj && pObj->GetInteger()) { 417 break; 418 } 419 } 420 if (i == nLen) { 421 return; 422 } 423 style_char = 'D'; 424 } 425 } else { 426 width = 1; 427 } 428 } else { 429 CFX_ByteString style = pBS->GetString("S"); 430 pDashArray = pBS->GetArray("D"); 431 style_char = style[1]; 432 width = pBS->GetNumber("W"); 433 } 434 if (width <= 0) { 435 return; 436 } 437 CPDF_Array* pColor = m_pAnnotDict->GetArray("C"); 438 FX_DWORD argb = 0xff000000; 439 if (pColor != NULL) { 440 int R = (FX_INT32)(pColor->GetNumber(0) * 255); 441 int G = (FX_INT32)(pColor->GetNumber(1) * 255); 442 int B = (FX_INT32)(pColor->GetNumber(2) * 255); 443 argb = ArgbEncode(0xff, R, G, B); 444 } 445 CPDF_GraphStateData graph_state; 446 graph_state.m_LineWidth = width; 447 if (style_char == 'D') { 448 if (pDashArray) { 449 FX_DWORD dash_count = pDashArray->GetCount(); 450 if (dash_count % 2) { 451 dash_count ++; 452 } 453 graph_state.m_DashArray = FX_Alloc(FX_FLOAT, dash_count); 454 if (graph_state.m_DashArray == NULL) { 455 return ; 456 } 457 graph_state.m_DashCount = dash_count; 458 FX_DWORD i; 459 for (i = 0; i < pDashArray->GetCount(); i ++) { 460 graph_state.m_DashArray[i] = pDashArray->GetNumber(i); 461 } 462 if (i < dash_count) { 463 graph_state.m_DashArray[i] = graph_state.m_DashArray[i - 1]; 464 } 465 } else { 466 graph_state.m_DashArray = FX_Alloc(FX_FLOAT, 2); 467 if (graph_state.m_DashArray == NULL) { 468 return ; 469 } 470 graph_state.m_DashCount = 2; 471 graph_state.m_DashArray[0] = graph_state.m_DashArray[1] = 3 * 1.0f; 472 } 473 } 474 CFX_FloatRect rect; 475 GetRect(rect); 476 CPDF_PathData path; 477 width /= 2; 478 path.AppendRect(rect.left + width, rect.bottom + width, rect.right - width, rect.top - width); 479 int fill_type = 0; 480 if (pOptions && (pOptions->m_Flags & RENDER_NOPATHSMOOTH)) { 481 fill_type |= FXFILL_NOPATHSMOOTH; 482 } 483 pDevice->DrawPath(&path, pUser2Device, &graph_state, argb, argb, fill_type); 484 } 485 int CPDF_Annot::CountIRTNotes() 486 { 487 int count = 0; 488 for (int i = 0; i < m_pList->Count(); i ++) { 489 CPDF_Annot* pAnnot = m_pList->GetAt(i); 490 if (pAnnot == NULL) { 491 continue; 492 } 493 CPDF_Dictionary* pIRT = pAnnot->m_pAnnotDict->GetDict("IRT"); 494 if (pIRT != m_pAnnotDict) { 495 continue; 496 } 497 count ++; 498 } 499 return count; 500 } 501 CPDF_Annot* CPDF_Annot::GetIRTNote(int index) 502 { 503 int count = 0; 504 for (int i = 0; i < m_pList->Count(); i ++) { 505 CPDF_Annot* pAnnot = m_pList->GetAt(i); 506 if (pAnnot == NULL) { 507 continue; 508 } 509 CPDF_Dictionary* pIRT = pAnnot->m_pAnnotDict->GetDict("IRT"); 510 if (pIRT != m_pAnnotDict) { 511 continue; 512 } 513 if (count == index) { 514 return pAnnot; 515 } 516 count ++; 517 } 518 return NULL; 519 } 520
