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