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/reflow/reflowengine.h" 8 #include "reflowedpage.h" 9 #include "layoutprovider_taggedpdf.h" 10 IPDF_LayoutProcessor* IPDF_LayoutProcessor::Create_LayoutProcessor_Reflow(FX_FLOAT TopIndent, FX_FLOAT fWidth, FX_FLOAT fHeight, void* pReflowedPage, int flags, FX_FLOAT lineSpace ) 11 { 12 if(pReflowedPage == NULL || fWidth <= 20) { 13 return NULL; 14 } 15 CPDF_LayoutProcessor_Reflow* pReflowEngine = new CPDF_LayoutProcessor_Reflow(); 16 pReflowEngine->Init(TopIndent, fWidth, fHeight, (CPDF_ReflowedPage*)pReflowedPage, flags, lineSpace); 17 return pReflowEngine; 18 } 19 CPDF_LayoutProcessor_Reflow::CPDF_LayoutProcessor_Reflow() 20 { 21 m_pPause = NULL; 22 m_pLayoutElement = NULL; 23 m_fRefWidth = 0; 24 m_fRefWidth = 0; 25 m_fCurrLineWidth = 0; 26 m_fCurrLineHeight = 0; 27 m_bIllustration = FALSE; 28 m_pPreObj = NULL; 29 m_pCurrLine = new CRF_DataPtrArray(50); 30 m_pTempLine = new CRF_DataPtrArray(50); 31 m_StartIndent = 0; 32 m_PausePosition = 0; 33 } 34 CPDF_LayoutProcessor_Reflow::~CPDF_LayoutProcessor_Reflow() 35 { 36 if (m_pCurrLine) { 37 m_pCurrLine->RemoveAll(); 38 delete m_pCurrLine; 39 } 40 m_pCurrLine = NULL; 41 if (m_pTempLine) { 42 m_pTempLine->RemoveAll(); 43 delete m_pTempLine; 44 } 45 m_pTempLine = NULL; 46 } 47 void CPDF_LayoutProcessor_Reflow::Init(FX_FLOAT TopIndent, FX_FLOAT fWidth, FX_FLOAT fHeight, CPDF_ReflowedPage* pReflowedPage, int flags, FX_FLOAT lineSpace) 48 { 49 m_pLayoutElement = NULL; 50 m_TopIndent = TopIndent; 51 m_Status = LayoutReady; 52 m_flags = flags; 53 m_pReflowedPage = pReflowedPage; 54 m_fScreenHeight = fHeight; 55 m_fRefWidth = fWidth; 56 m_fCurrLineHeight = 0; 57 m_fCurrLineWidth = 0; 58 m_fLineSpace = lineSpace; 59 pReflowedPage->m_PageWidth = fWidth; 60 pReflowedPage->m_PageHeight = TopIndent; 61 } 62 void CPDF_LayoutProcessor_Reflow::FitPageMode() 63 { 64 if(m_flags & RF_PARSER_PAGEMODE && m_fScreenHeight > 20) { 65 float fitPageHeight = m_fScreenHeight; 66 CPDF_ReflowedPage* pRFPage = m_pReflowedPage; 67 int count = pRFPage->m_pReflowed->GetSize(); 68 CFX_WordArray dy; 69 dy.Add(0); 70 int pos = 0; 71 int screenCount = 1; 72 FX_FLOAT h = pRFPage->GetPageHeight(); 73 while (h > screenCount * fitPageHeight) { 74 FX_FLOAT tempPageHeight = screenCount * fitPageHeight; 75 int j = 0; 76 FX_FLOAT tempDy = 0; 77 for(int i = 0; i < count; i++) { 78 CRF_Data* pData = (*pRFPage->m_pReflowed)[i]; 79 FX_FLOAT posY; 80 posY = pData->m_PosY; 81 if(FXSYS_fabs(posY) > tempPageHeight && 82 FXSYS_fabs(posY + pData->m_Height) < tempPageHeight) { 83 if(j == 0) { 84 j = i; 85 } 86 if(pData->m_Height > fitPageHeight) { 87 FX_FLOAT zoom; 88 FX_FLOAT spaceh = screenCount * fitPageHeight + posY + pData->m_Height; 89 if(spaceh < fitPageHeight / 3 * 2) { 90 spaceh = fitPageHeight; 91 } 92 zoom = spaceh / pData->m_Height; 93 tempDy = spaceh - pData->m_Height; 94 pData->m_Height = spaceh; 95 pData->m_Width *= zoom; 96 break; 97 } 98 FX_FLOAT dy = pData->m_PosY + pData->m_Height + tempPageHeight; 99 if(dy > tempDy) { 100 tempDy = dy; 101 } 102 } else if(FXSYS_fabs(posY + pData->m_Height) > tempPageHeight) { 103 break; 104 } 105 } 106 for(; j < count; j++) { 107 CRF_Data* pData = (*pRFPage->m_pReflowed)[j]; 108 FX_FLOAT posY; 109 posY = pData->m_PosY; 110 if(FXSYS_fabs(posY) > tempPageHeight ) { 111 pData->m_PosY -= tempDy; 112 } 113 if(pData->m_Height >= fitPageHeight) { 114 pData->m_Height = fitPageHeight - 1; 115 if(pData->GetType() == CRF_Data::Text) { 116 CRF_CharData* pCharData = (CRF_CharData*)pData; 117 pCharData->m_pCharState->m_fFontSize = pData->m_Height; 118 } 119 } 120 } 121 pRFPage->m_PageHeight += tempDy; 122 h += tempDy; 123 screenCount++; 124 } 125 } 126 } 127 LayoutStatus CPDF_LayoutProcessor_Reflow::StartProcess(IPDF_LayoutElement* pElement, IFX_Pause* pPause, const CFX_AffineMatrix* pPDFMatrix) 128 { 129 if(!pElement) { 130 return LayoutError; 131 } 132 m_pPause = pPause; 133 m_PDFMatrix = *pPDFMatrix; 134 m_pRootElement = pElement; 135 ProcessElement(m_pRootElement, m_fRefWidth); 136 if(m_Status == LayoutToBeContinued) { 137 return LayoutToBeContinued; 138 } 139 m_Status = LayoutFinished; 140 FitPageMode(); 141 return LayoutFinished; 142 } 143 LayoutStatus CPDF_LayoutProcessor_Reflow::Continue() 144 { 145 int size = m_pReflowedPage->m_pReflowed->GetSize(); 146 ProcessElement(m_pRootElement, m_CurrRefWidth); 147 size = m_pReflowedPage->m_pReflowed->GetSize(); 148 if(m_Status == LayoutReady) { 149 m_Status = LayoutFinished; 150 FitPageMode(); 151 } 152 return m_Status; 153 } 154 int CPDF_LayoutProcessor_Reflow::GetPosition() 155 { 156 return m_PausePosition; 157 } 158 FX_BOOL CPDF_LayoutProcessor_Reflow::IsCanBreakAfter(FX_DWORD unicode) 159 { 160 if(unicode == -1) { 161 return FALSE; 162 } 163 switch(unicode) { 164 case 40: 165 case 91: 166 case 123: 167 return FALSE; 168 } 169 if(unicode >= 256) { 170 return TRUE; 171 } else if(unicode >= 48 && unicode <= 57) { 172 return FALSE; 173 } else if(unicode >= 64 && unicode <= 90) { 174 return FALSE; 175 } else if(unicode >= 97 && unicode <= 122) { 176 return FALSE; 177 } 178 return TRUE; 179 } 180 FX_BOOL CPDF_LayoutProcessor_Reflow::IsCanBreakBefore(FX_DWORD unicode) 181 { 182 if(unicode == -1) { 183 return FALSE; 184 } 185 switch(unicode) { 186 case 33: 187 case 41: 188 case 44: 189 case 46: 190 case 59: 191 case 63: 192 case 93: 193 case 125: 194 return FALSE; 195 } 196 if(unicode >= 256) { 197 return TRUE; 198 } else if(unicode >= 48 && unicode <= 57) { 199 return FALSE; 200 } else if(unicode >= 64 && unicode <= 90) { 201 return FALSE; 202 } else if(unicode >= 97 && unicode <= 122) { 203 return FALSE; 204 } 205 return TRUE; 206 } 207 void CPDF_LayoutProcessor_Reflow::ProcessTable(FX_FLOAT dx) 208 { 209 if(m_pReflowedPage->m_pReflowed->GetSize() == 0) { 210 return; 211 } 212 CRF_Table* pTable = m_TableArray.GetAt(m_TableArray.GetSize() - 1); 213 int rowCount = pTable->m_nCell.GetSize(); 214 int n = 0; 215 FX_FLOAT* dyRow = FX_Alloc(FX_FLOAT, rowCount + 1); 216 FXSYS_memset32(dyRow, 0, sizeof(FX_FLOAT) * (rowCount + 1)); 217 dyRow[0] = 0 ; 218 dyRow[0] = - pTable->m_ReflowPageHeight; 219 int tableColCount = 0; 220 int i; 221 for(i = 0; i < rowCount; i++) { 222 int colCount = pTable->m_nCell.GetAt(i); 223 if(colCount > tableColCount) { 224 tableColCount = colCount; 225 } 226 } 227 int cellCount = tableColCount * rowCount; 228 RF_TableCell** pVirtualTable = FX_Alloc(RF_TableCell*, cellCount); 229 FXSYS_memset32(pVirtualTable, 0, sizeof(RF_TableCell*) * cellCount); 230 for(i = 0; i < rowCount; i++) { 231 int colCount = pTable->m_nCell.GetAt(i); 232 FX_FLOAT rowWidth = 0; 233 int j = 0; 234 int s = pTable->m_pCellArray.GetSize(); 235 for(j = 0; j < colCount; j++) { 236 RF_TableCell* pCell = (RF_TableCell*)pTable->m_pCellArray.GetAt(n++); 237 if(pCell->m_EndPos < pCell->m_BeginPos) { 238 continue; 239 } 240 int pos = i * tableColCount; 241 while(pos < cellCount && pVirtualTable[pos] != NULL) { 242 pos++; 243 } 244 if(pos >= (i + 1) * tableColCount) { 245 pos = i * tableColCount + j; 246 } 247 int RowSpan = pCell->m_RowSpan; 248 int ColSpan = pCell->m_ColSpan; 249 if(RowSpan + i > rowCount) { 250 RowSpan = rowCount - i; 251 } 252 if(ColSpan + j > colCount) { 253 ColSpan = colCount - j; 254 } 255 for(int m = 0; m < RowSpan; m++) { 256 for(int nn = 0; nn < ColSpan; nn++) { 257 if(pos + nn >= cellCount) { 258 break; 259 } 260 pVirtualTable[pos + nn] = pCell; 261 } 262 pos += tableColCount; 263 } 264 FX_FLOAT dxCell = dx; 265 for(pos = i * tableColCount; pVirtualTable[pos] != pCell && pos < cellCount; pos++) { 266 dxCell += (pVirtualTable[pos])->m_MaxWidth; 267 } 268 CRF_Data* pData = (*m_pReflowedPage->m_pReflowed)[pCell->m_BeginPos]; 269 FX_FLOAT dy = dyRow[i] - pData->m_Height - pData->m_PosY; 270 CFX_AffineMatrix matrix(1, 0, 0, 1, dxCell, dy); 271 Transform(&matrix, m_pReflowedPage->m_pReflowed, pCell->m_BeginPos, pCell->m_EndPos - pCell->m_BeginPos + 1); 272 if(pCell->m_RowSpan + i <= rowCount) { 273 if(FXSYS_fabs(dyRow[pCell->m_RowSpan + i]) < FXSYS_fabs(dyRow[i] - pCell->m_CellHeight)) { 274 dyRow[pCell->m_RowSpan + i] = dyRow[i] - pCell->m_CellHeight; 275 } 276 } 277 } 278 } 279 n = 0; 280 for(i = 0; i < rowCount; i++) { 281 int colCount = pTable->m_nCell.GetAt(i); 282 for(int j = 0; j < colCount; j++) { 283 RF_TableCell* pCell = (RF_TableCell*)pTable->m_pCellArray.GetAt(n++); 284 switch(pCell->m_BlockAlign) { 285 case LayoutAfter: { 286 FX_FLOAT dy = dyRow[i + pCell->m_RowSpan] - pCell->m_CellHeight - dyRow[i]; 287 CFX_AffineMatrix matrix(1, 0, 0, 1, 0, dy); 288 Transform(&matrix, m_pReflowedPage->m_pReflowed, pCell->m_BeginPos, pCell->m_EndPos - pCell->m_BeginPos + 1); 289 } 290 break; 291 case LayoutMiddle: 292 case LayoutJustify: { 293 FX_FLOAT dy = (dyRow[i + pCell->m_RowSpan] + pCell->m_CellHeight - dyRow[i]) / 2; 294 CFX_AffineMatrix matrix(1, 0, 0, 1, 0, dy); 295 Transform(&matrix, m_pReflowedPage->m_pReflowed, pCell->m_BeginPos, pCell->m_EndPos - pCell->m_BeginPos + 1); 296 break; 297 } 298 default: 299 break; 300 } 301 } 302 } 303 CRF_Data* pData = (*m_pReflowedPage->m_pReflowed)[m_pReflowedPage->m_pReflowed->GetSize() - 1]; 304 m_pReflowedPage->m_PageHeight = - dyRow[rowCount] + pData->m_Height; 305 FX_Free(pVirtualTable); 306 FX_Free(dyRow); 307 int size = pTable->m_pCellArray.GetSize(); 308 for(i = 0; i < size; i++) { 309 RF_TableCell* pCell = pTable->m_pCellArray.GetAt(i); 310 FX_Free(pCell); 311 } 312 pTable->m_pCellArray.RemoveAll(); 313 pTable->m_nCell.RemoveAll(); 314 int s = sizeof(CRF_Table); 315 delete pTable; 316 m_TableArray.RemoveAt(m_TableArray.GetSize() - 1); 317 } 318 CFX_FloatRect CPDF_LayoutProcessor_Reflow::GetElmBBox(IPDF_LayoutElement* pElement) 319 { 320 CFX_FloatRect rect; 321 int objCount = pElement->CountObjects(); 322 int count = pElement->CountChildren(); 323 if(objCount == 0 && count == 0) { 324 return rect; 325 } 326 CFX_AffineMatrix matrix; 327 int i; 328 for(i = 0; i < objCount; i++) { 329 CPDF_PageObject* pObj = pElement->GetObject(0); 330 if(!pObj) { 331 continue; 332 } 333 if( rect.Height() == 0 ) { 334 rect = pObj->GetBBox(&matrix); 335 } else { 336 rect.Union(pObj->GetBBox(&matrix)); 337 } 338 } 339 for(i = 0; i < count; i++) { 340 IPDF_LayoutElement* pChildElement = pElement->GetChild(i); 341 if( rect.Height() == 0 ) { 342 rect = GetElmBBox(pChildElement); 343 } else { 344 rect.Union(GetElmBBox(pChildElement)); 345 } 346 } 347 return rect; 348 } 349 FX_FLOAT CPDF_LayoutProcessor_Reflow::GetElmWidth(IPDF_LayoutElement* pElement) 350 { 351 if(!pElement) { 352 return 0; 353 } 354 LayoutType layoutType = pElement->GetType(); 355 FX_FLOAT width = 0; 356 if(layoutType == LayoutTable || layoutType == LayoutTableDataCell || layoutType == LayoutTableHeaderCell) { 357 width = pElement->GetNumberAttr(LayoutWidth); 358 if(width > 0) { 359 return width; 360 } 361 } else if( layoutType == LayoutTableRow) { 362 int count = pElement->CountChildren(); 363 for(int i = 0; i < count; i++) { 364 IPDF_LayoutElement* pElm = pElement->GetChild(i); 365 width += pElm->GetNumberAttr(LayoutWidth); 366 } 367 if(width > 0) { 368 return width; 369 } 370 } 371 CFX_FloatRect rect = GetElmBBox(pElement); 372 return rect.Width(); 373 } 374 FX_BOOL GetIntersection(FX_FLOAT low1, FX_FLOAT high1, FX_FLOAT low2, FX_FLOAT high2, 375 FX_FLOAT& interlow, FX_FLOAT& interhigh); 376 FX_BOOL IsSameLine(FX_BOOL bHorizontal, CFX_FloatRect Rect1, CFX_FloatRect Rect2) 377 { 378 if(bHorizontal) { 379 FX_FLOAT inter_top, inter_bottom; 380 if (!GetIntersection(Rect1.bottom, Rect1.top, Rect2.bottom, Rect2.top, 381 inter_bottom, inter_top)) { 382 return FALSE; 383 } 384 FX_FLOAT lineHeight = Rect1.top - Rect1.bottom; 385 if(lineHeight > 20 && lineHeight > Rect2.Height() * 2) { 386 return FALSE; 387 } 388 if(lineHeight > 5 && Rect2.Height() / 2 > lineHeight) { 389 return FALSE; 390 } 391 FX_FLOAT inter_h = inter_top - inter_bottom; 392 if (inter_h < (lineHeight) / 2 && inter_h < Rect2.Height() / 2) { 393 return FALSE; 394 } 395 } else { 396 FX_FLOAT inter_left, inter_right; 397 if(!GetIntersection(Rect1.left, Rect1.right, Rect2.left, Rect2.right, inter_left, inter_right)) { 398 return FALSE; 399 } 400 FX_FLOAT inter_w = inter_right - inter_left; 401 if (inter_w < (Rect1.right - Rect1.left) / 2 && inter_w < (Rect2.right - Rect2.left) / 2) { 402 return FALSE; 403 } 404 } 405 return TRUE; 406 } 407 FX_INT32 IsCanMergeParagraph(IPDF_LayoutElement* pPrevElement, IPDF_LayoutElement* pNextElement) 408 { 409 FX_INT32 analogial = 100; 410 FX_INT32 nPrevObj = pPrevElement->CountObjects(), i; 411 CPDF_PageObject* pPrevObj = NULL; 412 CFX_FloatRect prevRect, rect; 413 CFX_PtrArray prevLine, line; 414 FX_BOOL bParagraphStart = FALSE; 415 for(i = 0; i < nPrevObj; i++) { 416 CPDF_PageObject* pObj = pPrevElement->GetObject(i); 417 if(!pPrevObj) { 418 pPrevObj = pObj; 419 rect = CFX_FloatRect(pObj->m_Left, pObj->m_Bottom, pObj->m_Right, pObj->m_Top); 420 line.Add(pObj); 421 continue; 422 } 423 CFX_FloatRect objRect = CFX_FloatRect(pObj->m_Left, pObj->m_Bottom, pObj->m_Right, pObj->m_Top); 424 if(IsSameLine(TRUE, rect, objRect)) { 425 line.Add(pObj); 426 rect.Union(objRect); 427 } else { 428 prevLine.RemoveAll(); 429 prevLine.Append(line); 430 prevRect = rect; 431 line.RemoveAll(); 432 line.Add(pObj); 433 rect = objRect; 434 if(!bParagraphStart) { 435 if (prevRect.left > rect.left + rect.Height() * 1.5) { 436 bParagraphStart = TRUE; 437 } 438 } 439 } 440 } 441 if(prevLine.GetSize()) { 442 if(FXSYS_fabs(rect.right - prevRect.right) > rect.Height()) { 443 analogial -= 50; 444 } 445 } 446 CPDF_PageObject* pObj = pPrevElement->GetObject(nPrevObj - 1); 447 if(pObj->m_Type == PDFPAGE_TEXT) { 448 CPDF_TextObject* pText = (CPDF_TextObject*)pObj; 449 FX_INT32 nItem = pText->CountItems(); 450 CPDF_TextObjectItem item; 451 pText->GetItemInfo(nItem - 1, &item); 452 CFX_WideString wStr = pText->GetFont()->UnicodeFromCharCode(item.m_CharCode); 453 if(wStr.IsEmpty()) { 454 wStr = (FX_WCHAR)item.m_CharCode; 455 } 456 FX_WCHAR wch = wStr.GetAt(wStr.GetLength() - 1); 457 switch(wch) { 458 case '.': 459 case 12290: 460 case 65311: 461 case 63: 462 case 33: 463 case 65281: 464 analogial -= 50; 465 break; 466 } 467 } 468 prevLine.RemoveAll(); 469 prevLine.Append(line); 470 line.RemoveAll(); 471 FX_INT32 nNextObj = pNextElement->CountObjects(); 472 pPrevObj = NULL; 473 FX_BOOL bFirst = TRUE; 474 for(i = 0; i < nNextObj; i++) { 475 CPDF_PageObject* pObj = pNextElement->GetObject(i); 476 if(!pPrevObj) { 477 pPrevObj = pObj; 478 rect = CFX_FloatRect(pObj->m_Left, pObj->m_Bottom, pObj->m_Right, pObj->m_Top); 479 line.Add(pObj); 480 continue; 481 } 482 CFX_FloatRect objRect = CFX_FloatRect(pObj->m_Left, pObj->m_Bottom, pObj->m_Right, pObj->m_Top); 483 if(IsSameLine(TRUE, rect, objRect)) { 484 line.Add(pObj); 485 rect.Union(objRect); 486 } else { 487 if(FXSYS_fabs(rect.right - prevRect.right) < rect.Height() && FXSYS_fabs(rect.left - prevRect.left) < rect.Height()) { 488 analogial += 50; 489 } 490 prevLine.RemoveAll(); 491 prevLine.Append(line); 492 prevRect = rect; 493 line.RemoveAll(); 494 line.Add(pObj); 495 rect = objRect; 496 if(!bFirst) { 497 break; 498 } 499 bFirst = FALSE; 500 } 501 } 502 if(prevLine.GetSize()) { 503 if(bParagraphStart) { 504 if(prevRect.left - rect.left > rect.Height() && prevRect.left - rect.left < rect.Height() * 3) { 505 analogial -= 50; 506 } 507 } else { 508 if(FXSYS_fabs(prevRect.left - rect.left) < rect.Height()) { 509 analogial -= 50; 510 } 511 } 512 } 513 return analogial; 514 } 515 void CPDF_LayoutProcessor_Reflow::ProcessElement(IPDF_LayoutElement* pElement, FX_FLOAT reflowWidth) 516 { 517 if(pElement == NULL) { 518 return; 519 } 520 if(m_Status == LayoutReady) { 521 LayoutType layoutType = pElement->GetType(); 522 FX_INT32 ElementType = GetElementTypes(layoutType); 523 switch(ElementType) { 524 case SST_IE: 525 m_bIllustration = TRUE; 526 break; 527 case SST_BLSE: 528 FinishedCurrLine(); 529 FX_FLOAT StartIndent = 0; 530 if(IPDF_LayoutElement* pParent = pElement->GetParent()) { 531 StartIndent = pParent->GetNumberAttr(LayoutStartIndent); 532 } 533 FX_FLOAT currStartIndent = pElement->GetNumberAttr(LayoutStartIndent); 534 m_StartIndent = ConverWidth(currStartIndent); 535 FX_FLOAT width = reflowWidth; 536 if(StartIndent != currStartIndent) { 537 reflowWidth -= m_StartIndent; 538 } 539 FX_FLOAT spaceBefore = pElement->GetNumberAttr(LayoutSpaceBefore); 540 m_pReflowedPage->m_PageHeight += spaceBefore; 541 m_TextAlign = pElement->GetEnumAttr(LayoutTextAlign); 542 if(IPDF_LayoutElement* pParent = pElement->GetParent()) { 543 StartIndent = pParent->GetNumberAttr(LayoutEndIndent); 544 FX_FLOAT currEndIndent = pElement->GetNumberAttr(LayoutEndIndent); 545 if(StartIndent != currStartIndent) { 546 reflowWidth -= ConverWidth(currEndIndent); 547 } 548 } 549 if(reflowWidth * 2 < width) { 550 reflowWidth = width; 551 m_StartIndent = 0; 552 } 553 break; 554 } 555 switch(layoutType) { 556 case LayoutTable: { 557 CRF_Table* pTable = new CRF_Table; 558 m_TableArray.Add(pTable); 559 pTable->m_ReflowPageHeight = m_pReflowedPage->m_PageHeight; 560 pTable->m_TableWidth = GetElmWidth(pElement); 561 break; 562 } 563 case LayoutTableRow: { 564 if(!m_TableArray.GetSize()) { 565 break; 566 } 567 int count = pElement->CountChildren(); 568 CRF_Table* pTable = m_TableArray.GetAt(m_TableArray.GetSize() - 1); 569 int f = 0; 570 for(int i = 0; i < count; i++) { 571 IPDF_LayoutElement* pChildElement = pElement->GetChild(i); 572 LayoutType type = pChildElement->GetType(); 573 if(type == LayoutTableDataCell || type == LayoutTableHeaderCell) { 574 f++; 575 } 576 } 577 pTable->m_nCell.Add(f); 578 break; 579 } 580 case LayoutTableDataCell: 581 case LayoutTableHeaderCell: { 582 if(!m_TableArray.GetSize()) { 583 break; 584 } 585 RF_TableCell* pCell = FX_Alloc(RF_TableCell, 1); 586 FXSYS_memset32(pCell, 0 , sizeof(RF_TableCell)); 587 CRF_Table* pTable = m_TableArray.GetAt(m_TableArray.GetSize() - 1); 588 int pos = pTable->m_nCell.GetSize() - 1; 589 pCell->m_BeginPos = m_pReflowedPage->m_pReflowed->GetSize(); 590 FX_FLOAT cellWidth = pElement->GetNumberAttr(LayoutWidth); 591 if(cellWidth == 0 || pCell->m_MaxWidth > pTable->m_TableWidth) { 592 CRF_Table* pTable = m_TableArray.GetAt(m_TableArray.GetSize() - 1); 593 pCell->m_MaxWidth = reflowWidth / pTable->m_nCell.GetAt(pTable->m_nCell.GetSize() - 1); 594 } else { 595 pCell->m_MaxWidth = pElement->GetNumberAttr(LayoutWidth) * reflowWidth / pTable->m_TableWidth; 596 } 597 pCell->m_ColSpan = (int)(pElement->GetNumberAttr(LayoutColSpan)); 598 pCell->m_RowSpan = (int)(pElement->GetNumberAttr(LayoutRowSpan)); 599 if(!pCell->m_ColSpan) { 600 pCell->m_ColSpan = 1; 601 } 602 if(!pCell->m_RowSpan ) { 603 pCell->m_RowSpan = 1; 604 } 605 pCell->m_BlockAlign = pElement->GetEnumAttr(LayoutBlockAlign); 606 m_TextAlign = pElement->GetEnumAttr(LayoutInlineAlign); 607 pCell->m_PosX = 0; 608 pCell->m_PosY = 0; 609 reflowWidth = pCell->m_MaxWidth; 610 pTable->m_pCellArray.Add(pCell); 611 break; 612 } 613 default: 614 break; 615 } 616 m_fLineHeight = pElement->GetNumberAttr(LayoutLineHeight); 617 int ReflowedSize = m_pReflowedPage->m_pReflowed->GetSize(); 618 if(pElement->CountObjects()) { 619 ProcessObjs(pElement, reflowWidth); 620 } 621 } 622 int count = pElement->CountChildren(); 623 for(int i = 0; i < count; i++) { 624 IPDF_LayoutElement* pChildElement = pElement->GetChild(i); 625 ProcessElement(pChildElement, reflowWidth); 626 if(m_pPause && m_pRootElement == pElement && m_Status != LayoutToBeContinued ) { 627 if(m_pPause->NeedToPauseNow()) { 628 m_pLayoutElement = pChildElement; 629 m_Status = LayoutToBeContinued; 630 m_CurrRefWidth = reflowWidth; 631 m_PausePosition = (i + 1) * 100 / (count + 1); 632 return ; 633 } 634 } 635 if(m_Status == LayoutToBeContinued && m_pLayoutElement == pChildElement) { 636 m_Status = LayoutReady; 637 } 638 } 639 if(m_Status == LayoutReady) { 640 FX_FLOAT dx = 0; 641 LayoutType layoutType = pElement->GetType(); 642 FX_INT32 ElementType = GetElementTypes(layoutType); 643 switch(ElementType) { 644 case SST_IE: 645 m_bIllustration = FALSE; 646 FinishedCurrLine(); 647 break; 648 case SST_BLSE: 649 FinishedCurrLine(); 650 FX_FLOAT StartIndent = 0; 651 if(IPDF_LayoutElement* pParent = pElement->GetParent()) { 652 StartIndent = pParent->GetNumberAttr(LayoutStartIndent); 653 } 654 FX_FLOAT currStartIndent = pElement->GetNumberAttr(LayoutStartIndent); 655 if(StartIndent != currStartIndent) { 656 reflowWidth += ConverWidth(currStartIndent); 657 dx += ConverWidth(currStartIndent); 658 } 659 FX_FLOAT spaceAfter = pElement->GetNumberAttr(LayoutSpaceAfter); 660 m_pReflowedPage->m_PageHeight += spaceAfter; 661 break; 662 } 663 switch(layoutType) { 664 case LayoutTableDataCell: 665 case LayoutTableHeaderCell: { 666 if(!m_TableArray.GetSize()) { 667 break; 668 } 669 CRF_Table* pTable = m_TableArray.GetAt(m_TableArray.GetSize() - 1); 670 RF_TableCell* pCell = pTable->m_pCellArray.GetAt(pTable->m_pCellArray.GetSize() - 1); 671 pCell->m_EndPos = m_pReflowedPage->m_pReflowed->GetSize() - 1; 672 if(pCell->m_EndPos < pCell->m_BeginPos) { 673 pCell->m_CellHeight = 0; 674 } else { 675 CRF_Data* pBeginData = (*m_pReflowedPage->m_pReflowed)[pCell->m_BeginPos]; 676 CRF_Data* pEndData = (*m_pReflowedPage->m_pReflowed)[pCell->m_EndPos]; 677 pCell->m_CellHeight = pBeginData->m_Height > pEndData->m_Height ? pBeginData->m_Height : pEndData->m_Height; 678 pCell->m_CellHeight -= pEndData->m_PosY - pBeginData->m_PosY; 679 } 680 break; 681 } 682 case LayoutTableRow: { 683 if(!m_TableArray.GetSize()) { 684 break; 685 } 686 CRF_Table* pTable = m_TableArray.GetAt(m_TableArray.GetSize() - 1); 687 if(pTable->m_nCol == 0) { 688 pTable->m_nCol = pTable->m_pCellArray.GetSize(); 689 } 690 break; 691 } 692 case LayoutTable: { 693 ProcessTable(dx); 694 break; 695 } 696 default: 697 if(dx) { 698 CFX_AffineMatrix matrix(1, 0, 0, 1, dx, 0); 699 int ReflowedSize = m_pReflowedPage->m_pReflowed->GetSize(); 700 Transform(&matrix, m_pReflowedPage->m_pReflowed, ReflowedSize, m_pReflowedPage->m_pReflowed->GetSize() - ReflowedSize); 701 } 702 } 703 } 704 if(m_pRootElement == pElement) { 705 m_PausePosition = 100; 706 } 707 } 708 FX_INT32 CPDF_LayoutProcessor_Reflow::GetElementTypes(LayoutType layoutType) 709 { 710 switch(layoutType) { 711 case LayoutParagraph: 712 case LayoutHeading: 713 case LayoutHeading1: 714 case LayoutHeading2: 715 case LayoutHeading3: 716 case LayoutHeading4: 717 case LayoutHeading5: 718 case LayoutHeading6: 719 case LayoutList: 720 case LayoutListItem: 721 case LayoutListLabel: 722 case LayoutListBody: 723 case LayoutTable: 724 case LayoutTableHeaderCell: 725 case LayoutTableDataCell: 726 case LayoutTableRow: 727 case LayoutTableHeaderGroup: 728 case LayoutTableBodyGroup: 729 case LayoutTableFootGroup: 730 case LayoutTOCI: 731 case LayoutCaption: 732 return SST_BLSE; 733 case LayoutFigure: 734 case LayoutFormula: 735 case LayoutForm: 736 return SST_IE; 737 case LayoutSpan: 738 case LayoutQuote: 739 case LayoutNote: 740 case LayoutReference: 741 case LayoutBibEntry: 742 case LayoutCode: 743 case LayoutLink: 744 case LayoutAnnot: 745 case LayoutRuby: 746 case LayoutWarichu: 747 return SST_ILSE; 748 default: 749 return SST_GE; 750 } 751 return FALSE; 752 } 753 FX_FLOAT CPDF_LayoutProcessor_Reflow::ConverWidth(FX_FLOAT width) 754 { 755 return width; 756 } 757 void CPDF_LayoutProcessor_Reflow::ProcessObject(CPDF_PageObject* pObj, FX_FLOAT reflowWidth, CFX_AffineMatrix objMatrix) 758 { 759 if(!pObj) { 760 return; 761 } 762 if(pObj->m_Type == PDFPAGE_TEXT) { 763 ProcessTextObject( (CPDF_TextObject *)pObj, reflowWidth, objMatrix); 764 } else if(pObj->m_Type == PDFPAGE_IMAGE) { 765 if(!(m_flags & RF_PARSER_IMAGE)) { 766 return; 767 } 768 CPDF_PageObjects* pObjs = new CPDF_PageObjects(FALSE); 769 FX_POSITION pos = pObjs->GetLastObjectPosition(); 770 pos = pObjs->InsertObject(pos, pObj); 771 CFX_AffineMatrix matrix; 772 FX_RECT rect = pObj->GetBBox(&matrix); 773 CPDF_ImageObject* ImageObj = (CPDF_ImageObject*)pObj; 774 ProcessUnitaryObjs(pObjs, reflowWidth, objMatrix); 775 delete pObjs; 776 } else if(pObj->m_Type == PDFPAGE_PATH) { 777 } else if(pObj->m_Type == PDFPAGE_FORM) { 778 CPDF_FormObject* pForm = (CPDF_FormObject*)pObj; 779 FX_POSITION pos = pForm->m_pForm->GetFirstObjectPosition(); 780 objMatrix.Concat(pForm->m_FormMatrix); 781 while (pos) { 782 CPDF_PageObject* pObj1 = pForm->m_pForm->GetNextObject(pos); 783 ProcessObject(pObj1, reflowWidth, objMatrix); 784 } 785 } 786 } 787 void CPDF_LayoutProcessor_Reflow::ProcessObjs(IPDF_LayoutElement* pElement, FX_FLOAT reflowWidth) 788 { 789 m_fCurrMaxWidth = reflowWidth; 790 int ObjCount = pElement->CountObjects(); 791 for(int i = 0; i < ObjCount; i++) { 792 CPDF_PageObject* pObj = pElement->GetObject(i); 793 ProcessObject(pObj, reflowWidth, m_PDFMatrix); 794 continue; 795 } 796 } 797 void CPDF_LayoutProcessor_Reflow::AddTemp2CurrLine(int begin, int count) 798 { 799 if(begin < 0 || count <= 0 || !m_pReflowedPage || !m_pReflowedPage->m_pReflowed || !m_pTempLine) { 800 return; 801 } else { 802 count += begin; 803 } 804 int size = m_pReflowedPage->m_pReflowed->GetSize(); 805 int temps = m_pTempLine->GetSize(); 806 for(int i = begin; i < count; i++) { 807 CRF_Data* pData = (*m_pTempLine)[i]; 808 AddData2CurrLine(pData); 809 } 810 } 811 void CPDF_LayoutProcessor_Reflow::AddData2CurrLine(CRF_Data* pData) 812 { 813 if(pData == NULL || m_pCurrLine == NULL) { 814 return; 815 } 816 m_pCurrLine->Add(pData); 817 m_fCurrLineWidth = pData->m_PosX + pData->m_Width; 818 if(pData->m_Height > m_fCurrLineHeight) { 819 m_fCurrLineHeight = pData->m_Height; 820 } 821 } 822 void CPDF_LayoutProcessor_Reflow::UpdateCurrLine() 823 { 824 } 825 void CPDF_LayoutProcessor_Reflow::Transform(const CFX_AffineMatrix* pMatrix, CRF_DataPtrArray* pDataArray, int beginPos, int count) 826 { 827 if (!pDataArray) { 828 return; 829 } 830 if(count == 0) { 831 count = pDataArray->GetSize(); 832 } else { 833 count += beginPos; 834 } 835 for(int i = beginPos; i < count; i++) { 836 CRF_Data* pData = (*pDataArray)[i]; 837 Transform(pMatrix, pData); 838 } 839 } 840 void CPDF_LayoutProcessor_Reflow::Transform(const CFX_AffineMatrix* pMatrix, CRF_Data* pData) 841 { 842 if(pData->GetType() == CRF_Data::Path) { 843 CRF_PathData* pPathData = (CRF_PathData*)pData; 844 pPathData->m_pPath2Device.Concat(*pMatrix); 845 } 846 pMatrix->Transform(pData->m_PosX, pData->m_PosY, pData->m_PosX, pData->m_PosY); 847 } 848 FX_BOOL CPDF_LayoutProcessor_Reflow::FinishedCurrLine() 849 { 850 if (NULL == m_pCurrLine) { 851 return FALSE; 852 } 853 int count = m_pCurrLine->GetSize(); 854 if(count == 0) { 855 return FALSE; 856 } 857 if(m_fLineHeight > m_fCurrLineHeight) { 858 m_fCurrLineHeight = m_fLineHeight; 859 } else { 860 m_fCurrLineHeight += 2; 861 } 862 if(m_pReflowedPage->m_pReflowed->GetSize() > 0) { 863 m_fCurrLineHeight += m_fLineSpace; 864 } 865 FX_FLOAT height = m_pReflowedPage->m_PageHeight + m_fCurrLineHeight; 866 FX_FLOAT lineHeight = m_fLineHeight; 867 if(lineHeight == 0) { 868 lineHeight = m_fCurrLineHeight; 869 } 870 FX_FLOAT dx = 0; 871 switch(m_TextAlign) { 872 case LayoutCenter: 873 dx = (m_fCurrMaxWidth - m_fCurrLineWidth) / 2; 874 break; 875 case LayoutEnd: 876 dx = m_fCurrMaxWidth - m_fCurrLineWidth; 877 break; 878 case LayoutJustify: 879 break; 880 default: 881 break; 882 } 883 FX_FLOAT dy = - height; 884 int refedSize = m_pReflowedPage->m_pReflowed->GetSize(); 885 if(count == 13) { 886 int a = 0; 887 } 888 for(int i = 0; i < count; i++) { 889 CRF_Data* pData = (*m_pCurrLine)[i]; 890 m_pReflowedPage->m_pReflowed->Add(pData); 891 FX_FLOAT x = m_StartIndent + dx * (m_TextAlign == LayoutJustify ? i + 1 : 1); 892 CFX_AffineMatrix matrix(1, 0, 0, 1, x, dy); 893 Transform(&matrix, pData); 894 } 895 m_pCurrLine->RemoveAll(); 896 m_fCurrLineWidth = 0; 897 m_pReflowedPage->m_PageHeight += m_fCurrLineHeight; 898 m_fCurrLineHeight = 0; 899 return TRUE; 900 } 901 CRF_CharState* CPDF_LayoutProcessor_Reflow::GetCharState(CPDF_TextObject* pObj, CPDF_Font* pFont, FX_FLOAT fHeight, FX_ARGB color) 902 { 903 if (NULL == m_pReflowedPage->m_pCharState) { 904 return NULL; 905 } 906 int count = m_pReflowedPage->m_pCharState->GetSize(); 907 for(int i = count - 1; i >= 0; i--) { 908 CRF_CharState* pState = (CRF_CharState*)m_pReflowedPage->m_pCharState->GetAt(i); 909 if(pState->m_Color == color && pState->m_fFontSize == fHeight && pState->m_pFont == pFont && pState->m_pTextObj == pObj) { 910 return pState; 911 } 912 } 913 CRF_CharState pState; 914 pState.m_pTextObj = pObj; 915 pState.m_Color = color; 916 pState.m_pFont = pFont; 917 pState.m_fFontSize = fHeight; 918 int ascent = pFont->GetTypeAscent(); 919 int descent = pFont->GetTypeDescent(); 920 pState.m_fAscent = ascent * fHeight / (ascent - descent); 921 if(descent == 0) { 922 pState.m_fDescent = 0; 923 } else { 924 pState.m_fDescent = descent * fHeight / (ascent - descent); 925 } 926 pState.m_bVert = FALSE; 927 CPDF_CIDFont *pCIDFont = pFont->GetCIDFont(); 928 if(pCIDFont) { 929 pState.m_bVert = pCIDFont->IsVertWriting(); 930 } 931 m_pReflowedPage->m_pCharState->Add(pState); 932 return (CRF_CharState*)m_pReflowedPage->m_pCharState->GetAt(count); 933 } 934 int CPDF_LayoutProcessor_Reflow::GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) const 935 { 936 if(charCode == -1) { 937 return 0; 938 } 939 int w = pFont->GetCharWidthF(charCode); 940 if(w == 0) { 941 CFX_ByteString str; 942 pFont->AppendChar(str, charCode); 943 w = pFont->GetStringWidth(str, 1); 944 if(w == 0) { 945 FX_RECT BBox; 946 pFont->GetCharBBox(charCode, BBox); 947 w = BBox.right - BBox.left; 948 } 949 } 950 return w; 951 } 952 void CPDF_LayoutProcessor_Reflow::CreateRFData(CPDF_PageObject* pObj, CFX_AffineMatrix* pObjMatrix) 953 { 954 if (NULL == m_pReflowedPage->m_pMemoryPool) { 955 return; 956 } 957 if(pObj->m_Type == PDFPAGE_TEXT) { 958 CPDF_TextObject* pTextObj = (CPDF_TextObject* )pObj; 959 int count = pTextObj->CountItems(); 960 if(!count) { 961 return; 962 } 963 if(count == 1) { 964 CPDF_TextObjectItem Item; 965 pTextObj->GetItemInfo(0, &Item); 966 if(Item.m_CharCode == 49) { 967 int a = 0; 968 } 969 } 970 CPDF_Font * pFont = pTextObj->GetFont(); 971 FX_FLOAT fs = pTextObj->GetFontSize(); 972 FX_FLOAT* pmatrix = pTextObj->m_TextState.GetMatrix(); 973 FX_FLOAT matrix1 = pmatrix[1]; 974 if(pmatrix[2] == 0) { 975 matrix1 = 0; 976 } 977 CFX_AffineMatrix textMatrix(pmatrix[0], matrix1, pmatrix[2], pmatrix[3], 0, 0); 978 FX_FLOAT height = FXSYS_fabs(textMatrix.TransformDistance(fs)); 979 if(pObjMatrix) { 980 height = FXSYS_fabs(pObjMatrix->TransformDistance(height)); 981 } 982 int r = 0, g = 0, b = 0; 983 pTextObj->m_ColorState.GetFillColor()->GetRGB(r, g, b); 984 FX_ARGB col = r * 0x10000; 985 col += g * 0x100; 986 col += b; 987 CRF_CharState* pState = GetCharState(pTextObj, pFont, height, col); 988 FX_FLOAT dx = 0, dy = 0; 989 FX_RECT ObjBBox; 990 if(pObjMatrix) { 991 ObjBBox = pTextObj->GetBBox(pObjMatrix); 992 dx = (float)ObjBBox.left; 993 dy = (float)ObjBBox.bottom; 994 } else { 995 CFX_AffineMatrix matrix; 996 ObjBBox = pTextObj->GetBBox(&matrix); 997 } 998 FX_FLOAT objWidth = 0; 999 CFX_ByteString str; 1000 FX_BOOL bOrder = TRUE; 1001 CFX_PtrArray tempArray; 1002 int i = 0; 1003 CPDF_TextObjectItem Item; 1004 pTextObj->GetItemInfo(i, &Item); 1005 dx = Item.m_OriginX; 1006 dy = Item.m_OriginY; 1007 textMatrix.Transform(Item.m_OriginX, Item.m_OriginY, dx, dy); 1008 CRF_CharData* pLastData = NULL; 1009 FX_FLOAT horzScale = pTextObj->m_TextState.GetFontSizeV() / pTextObj->m_TextState.GetFontSizeH(); 1010 while(i < count) { 1011 pTextObj->GetItemInfo(i, &Item); 1012 if(Item.m_CharCode == -1) { 1013 i++; 1014 continue; 1015 } 1016 FX_FLOAT OriginX, OriginY; 1017 textMatrix.Transform(Item.m_OriginX, Item.m_OriginY, OriginX, OriginY); 1018 CRF_CharData* pData = (CRF_CharData*)m_pReflowedPage->m_pMemoryPool->Alloc(sizeof(CRF_CharData)); 1019 if (NULL == pData) { 1020 continue; 1021 } 1022 pData->m_Type = CRF_Data::Text; 1023 if(FXSYS_fabs(OriginY - dy) > FXSYS_fabs(OriginX - dx)) { 1024 pData->m_PosY = dy; 1025 pData->m_PosX = pLastData->m_PosX + pLastData->m_Width + textMatrix.TransformDistance(pTextObj->m_TextState.GetObject()->m_CharSpace); 1026 } else { 1027 pData->m_PosY = OriginY; 1028 pData->m_PosX = OriginX; 1029 } 1030 int size = tempArray.GetSize(); 1031 if(size && pData->m_PosX < pLastData->m_PosX ) { 1032 for (int j = 0; j < size; j++) { 1033 CRF_CharData* pData1 = (CRF_CharData*)tempArray.GetAt(j); 1034 if(pData1->m_PosX > pData->m_PosX) { 1035 tempArray.InsertAt(j, pData); 1036 break; 1037 } 1038 } 1039 } else { 1040 tempArray.Add(pData); 1041 } 1042 pLastData = pData; 1043 pData->m_CharCode = Item.m_CharCode; 1044 pData->m_Height = FXSYS_fabs(height); 1045 int w = GetCharWidth(Item.m_CharCode, pFont); 1046 pData->m_Width = FXSYS_fabs(fs * textMatrix.TransformDistance((FX_FLOAT)w) / 1000); 1047 if(horzScale) { 1048 pData->m_Width /= horzScale; 1049 } 1050 pData->m_pCharState = pState; 1051 i++; 1052 } 1053 count = tempArray.GetSize(); 1054 for (int j = 0; j < count; j++) { 1055 CRF_CharData* pData = (CRF_CharData*)tempArray.GetAt(j); 1056 if (m_pTempLine) { 1057 m_pTempLine->Add(pData); 1058 } 1059 } 1060 tempArray.RemoveAll(); 1061 } else if(pObj->m_Type == PDFPAGE_IMAGE) { 1062 CPDF_ImageObject* pImageObj = (CPDF_ImageObject* )pObj; 1063 CRF_ImageData* pRFImage = (CRF_ImageData*)m_pReflowedPage->m_pMemoryPool->Alloc(sizeof(CRF_ImageData)); 1064 if (NULL == pRFImage) { 1065 return; 1066 } 1067 pRFImage->m_pBitmap = NULL; 1068 pRFImage->m_Type = CRF_Data::Image; 1069 if (m_pTempLine) { 1070 m_pTempLine->Add(pRFImage); 1071 } 1072 CPDF_Image *pImage = pImageObj->m_pImage; 1073 if (!pImage->m_pDIBSource || !pImage->m_pMask) { 1074 if(pImage->StartLoadDIBSource(m_pReflowedPage->GetFormResDict(pImageObj), m_pReflowedPage->m_pPDFPage->m_pResources, 0, 0, TRUE)) { 1075 pImage->Continue(NULL); 1076 } 1077 } 1078 CFX_DIBSource* pDibSource = pImage->DetachBitmap(); 1079 if (pDibSource) { 1080 pRFImage->m_pBitmap = pDibSource->Clone(); 1081 delete pDibSource; 1082 } 1083 CFX_DIBSource* pMask = pImage->DetachMask(); 1084 if (pMask) { 1085 if (!pMask->IsAlphaMask()) { 1086 CFX_DIBitmap* pMaskBmp = pMask->Clone(); 1087 pMaskBmp->ConvertFormat(FXDIB_8bppMask); 1088 pRFImage->m_pBitmap->MultiplyAlpha(pMaskBmp); 1089 delete pMaskBmp; 1090 } else { 1091 pRFImage->m_pBitmap->MultiplyAlpha(pMask); 1092 } 1093 delete pMask; 1094 } 1095 CFX_FloatRect ObjBBox; 1096 if(pObjMatrix) { 1097 ObjBBox = pImageObj->GetBBox(pObjMatrix); 1098 } else { 1099 CFX_AffineMatrix matrix; 1100 ObjBBox = pImageObj->GetBBox(&matrix); 1101 } 1102 pRFImage->m_Width = ObjBBox.Width(); 1103 pRFImage->m_Height = ObjBBox.Height(); 1104 pRFImage->m_PosX = 0; 1105 pRFImage->m_PosY = 0; 1106 CFX_AffineMatrix matrix(1, 0, 0, -1, 0, 0); 1107 matrix.Concat(pImageObj->m_Matrix); 1108 matrix.Concat(*pObjMatrix); 1109 pRFImage->m_Matrix.Set(matrix.a == 0 ? 0 : matrix.a / FXSYS_fabs(matrix.a), 1110 matrix.b == 0 ? 0 : matrix.b / FXSYS_fabs(matrix.b), 1111 matrix.c == 0 ? 0 : matrix.c / FXSYS_fabs(matrix.c), 1112 matrix.d == 0 ? 0 : matrix.d / FXSYS_fabs(matrix.d), 0, 0); 1113 } else if(pObj->m_Type == PDFPAGE_PATH) { 1114 } 1115 } 1116 FX_FLOAT CPDF_LayoutProcessor_Reflow:: GetDatasWidth(int beginPos, int endpos) 1117 { 1118 if(endpos < beginPos || !m_pTempLine) { 1119 return 0; 1120 } 1121 if(endpos > m_pTempLine->GetSize() - 1) { 1122 endpos = m_pTempLine->GetSize() - 1; 1123 } 1124 CRF_Data* pBeginData = (*m_pTempLine)[beginPos]; 1125 CRF_Data* pEndData = (*m_pTempLine)[endpos]; 1126 return pEndData->m_PosX - pBeginData->m_PosX + pEndData->m_Width; 1127 } 1128 FX_WCHAR CPDF_LayoutProcessor_Reflow::GetPreChar() 1129 { 1130 if (NULL == m_pCurrLine) { 1131 return -1; 1132 } 1133 int index = m_pCurrLine->GetSize() - 1; 1134 CRF_CharData* pCharData = NULL; 1135 while (index >= 0 && !pCharData) { 1136 CRF_Data* pData = (*m_pCurrLine)[index]; 1137 if(pData->GetType() == CRF_Data::Text) { 1138 pCharData = (CRF_CharData*)pData; 1139 } else { 1140 return -1; 1141 } 1142 index --; 1143 } 1144 if(m_pReflowedPage) { 1145 index = m_pReflowedPage->m_pReflowed->GetSize() - 1; 1146 } 1147 while(!pCharData && index >= 0) { 1148 CRF_Data* pData = (*m_pReflowedPage->m_pReflowed)[index]; 1149 if(pData->GetType() == CRF_Data::Text) { 1150 pCharData = (CRF_CharData*)pData; 1151 } else { 1152 return -1; 1153 } 1154 index --; 1155 } 1156 if(pCharData) { 1157 CFX_WideString str = pCharData->m_pCharState->m_pFont->UnicodeFromCharCode(pCharData->m_CharCode); 1158 return str.GetAt(0); 1159 } 1160 return -1; 1161 } 1162 int CPDF_LayoutProcessor_Reflow::ProcessInsertObject(CPDF_TextObject* pObj, CFX_AffineMatrix formMatrix) 1163 { 1164 if(!pObj || !m_pPreObj || !m_pCurrLine) { 1165 return 0; 1166 } 1167 if(m_pCurrLine->GetSize() == 0) { 1168 return 0; 1169 } 1170 CPDF_TextObjectItem item; 1171 int nItem = m_pPreObj->CountItems(); 1172 m_pPreObj->GetItemInfo(nItem - 1, &item); 1173 FX_FLOAT last_pos = item.m_OriginX; 1174 FX_FLOAT last_width = GetCharWidth(item.m_CharCode, m_pPreObj->GetFont()) * m_pPreObj->GetFontSize() / 1000; 1175 last_width = FXSYS_fabs(last_width); 1176 pObj->GetItemInfo(0, &item); 1177 FX_FLOAT this_width = GetCharWidth(item.m_CharCode, pObj->GetFont()) * pObj->GetFontSize() / 1000; 1178 this_width = FXSYS_fabs(this_width); 1179 FX_FLOAT threshold = last_width > this_width ? last_width / 4 : this_width / 4; 1180 CFX_AffineMatrix prev_matrix, prev_reverse; 1181 m_pPreObj->GetTextMatrix(&prev_matrix); 1182 prev_matrix.Concat(m_perMatrix); 1183 prev_reverse.SetReverse(prev_matrix); 1184 FX_FLOAT x = pObj->GetPosX(), y = pObj->GetPosY(); 1185 formMatrix.Transform(x, y); 1186 prev_reverse.Transform(x, y); 1187 FX_WCHAR preChar = GetPreChar(); 1188 CFX_WideString wstrItem = pObj->GetFont()->UnicodeFromCharCode(item.m_CharCode); 1189 FX_WCHAR curChar = wstrItem.GetAt(0); 1190 if (FXSYS_fabs(y) > threshold * 2) { 1191 if (preChar == L'-') { 1192 return 3; 1193 } 1194 if (preChar != L' ') { 1195 return 1; 1196 } 1197 return 2; 1198 } 1199 if ((x - last_pos - last_width) > threshold && curChar != L' ' && preChar != L' ') { 1200 return 1; 1201 } 1202 return 0; 1203 } 1204 FX_INT32 CPDF_LayoutProcessor_Reflow::LogicPreObj(CPDF_TextObject* pObj) 1205 { 1206 CPDF_TextObject* pPreObj = m_pPreObj; 1207 m_pPreObj = pObj; 1208 if(!pObj || !pPreObj) { 1209 return 0; 1210 } 1211 CPDF_TextObjectItem item; 1212 pPreObj->GetItemInfo(pPreObj->CountItems() - 1, &item); 1213 FX_FLOAT last_pos = item.m_OriginX; 1214 FX_FLOAT last_width = pPreObj->GetFont()->GetCharWidthF(item.m_CharCode) * pPreObj->GetFontSize() / 1000; 1215 last_width = FXSYS_fabs(last_width); 1216 pObj->GetItemInfo(0, &item); 1217 FX_FLOAT this_width = pObj->GetFont()->GetCharWidthF(item.m_CharCode) * pObj->GetFontSize() / 1000; 1218 this_width = FXSYS_fabs(this_width); 1219 FX_FLOAT threshold = last_width > this_width ? last_width / 4 : this_width / 4; 1220 CFX_AffineMatrix prev_matrix, prev_reverse; 1221 pPreObj->GetTextMatrix(&prev_matrix); 1222 prev_reverse.SetReverse(prev_matrix); 1223 FX_FLOAT x = pObj->GetPosX(), y = pObj->GetPosY(); 1224 prev_reverse.Transform(x, y); 1225 CFX_WideString wstrItem = pObj->GetFont()->UnicodeFromCharCode(item.m_CharCode); 1226 FX_WCHAR curChar = wstrItem.GetAt(0); 1227 if (FXSYS_fabs(y) > threshold * 2) { 1228 return 2; 1229 } 1230 FX_WCHAR preChar = 0; 1231 if (FXSYS_fabs(last_pos + last_width - x) > threshold && curChar != L' ') { 1232 return 1; 1233 } 1234 return 0; 1235 m_pPreObj = pObj; 1236 if(!pPreObj) { 1237 return 0; 1238 } 1239 if(pPreObj->m_Type != pObj->m_Type) { 1240 return 0; 1241 } 1242 CFX_FloatRect rcCurObj(pObj->m_Left, pObj->m_Bottom, pObj->m_Right, pObj->m_Top); 1243 CFX_FloatRect rcPreObj(pPreObj->m_Left, pPreObj->m_Bottom, pPreObj->m_Right, pPreObj->m_Top); 1244 if(pObj->m_Type == PDFPAGE_IMAGE) { 1245 if(rcPreObj.Contains(rcCurObj)) { 1246 return 2; 1247 } 1248 if(rcCurObj.Contains(rcPreObj)) { 1249 return 2; 1250 } 1251 return 0; 1252 } 1253 if(pObj->m_Type == PDFPAGE_TEXT) { 1254 if(!((rcPreObj.bottom > rcCurObj.top) || (rcPreObj.top < rcCurObj.bottom))) { 1255 FX_FLOAT height = FX_MIN(rcPreObj.Height(), rcCurObj.Height()); 1256 if((rcCurObj.left - rcPreObj.right) > height / 3) { 1257 return 3; 1258 } 1259 } 1260 if(FXSYS_fabs(rcPreObj.Width() - rcCurObj.Width()) >= 2 || FXSYS_fabs(rcPreObj.Height() - rcCurObj.Height()) >= 2 ) { 1261 return 0; 1262 } 1263 CPDF_TextObject* pPreTextObj = (CPDF_TextObject*)pPreObj; 1264 CPDF_TextObject* pCurTextObj = (CPDF_TextObject*)pObj; 1265 int nPreCount = pPreTextObj->CountItems(); 1266 int nCurCount = pCurTextObj->CountItems(); 1267 if (nPreCount != nCurCount) { 1268 return 0; 1269 } 1270 FX_BOOL bSame = TRUE; 1271 for (int i = 0; i < nPreCount; i++) { 1272 CPDF_TextObjectItem itemPer, itemCur; 1273 pPreTextObj->GetItemInfo(i, &itemPer); 1274 pCurTextObj->GetItemInfo(i, &itemCur); 1275 if (itemCur.m_CharCode != itemPer.m_CharCode) { 1276 return 0; 1277 } 1278 if (itemCur.m_OriginX != itemPer.m_OriginX) { 1279 bSame = FALSE; 1280 } 1281 if (itemCur.m_OriginY != itemPer.m_OriginY) { 1282 bSame = FALSE; 1283 } 1284 } 1285 if(rcPreObj.left == rcCurObj.left && rcPreObj.top == rcCurObj.top) { 1286 return 1; 1287 } 1288 if(FXSYS_fabs(rcPreObj.left - rcCurObj.left) < rcPreObj.Width() / 3 1289 && FXSYS_fabs(rcPreObj.top - rcCurObj.top) < rcPreObj.Height() / 3) { 1290 return 2; 1291 } 1292 } 1293 return 0; 1294 } 1295 FX_BOOL CPDF_LayoutProcessor_Reflow::IsSameTextObject(CPDF_TextObject* pTextObj1, CPDF_TextObject* pTextObj2) 1296 { 1297 if (!pTextObj1 || !pTextObj2) { 1298 return FALSE; 1299 } 1300 CFX_FloatRect rcPreObj(pTextObj2->m_Left, pTextObj2->m_Bottom, pTextObj2->m_Right, pTextObj2->m_Top); 1301 CFX_FloatRect rcCurObj(pTextObj1->m_Left, pTextObj1->m_Bottom, pTextObj1->m_Right, pTextObj1->m_Top); 1302 if (rcPreObj.IsEmpty() && rcCurObj.IsEmpty()) { 1303 return FALSE; 1304 } 1305 if (!rcPreObj.IsEmpty() || !rcCurObj.IsEmpty()) { 1306 rcPreObj.Intersect(rcCurObj); 1307 if (rcPreObj.IsEmpty()) { 1308 return FALSE; 1309 } 1310 if (FXSYS_fabs(rcPreObj.Width() - rcCurObj.Width()) > rcCurObj.Width() / 2) { 1311 return FALSE; 1312 } 1313 if (pTextObj2->GetFontSize() != pTextObj1->GetFontSize()) { 1314 return FALSE; 1315 } 1316 } 1317 int nPreCount = pTextObj2->CountItems(); 1318 int nCurCount = pTextObj1->CountItems(); 1319 if (nPreCount != nCurCount) { 1320 return FALSE; 1321 } 1322 for (int i = 0; i < nPreCount; i++) { 1323 CPDF_TextObjectItem itemPer, itemCur; 1324 pTextObj2->GetItemInfo(i, &itemPer); 1325 pTextObj1->GetItemInfo(i, &itemCur); 1326 if (itemCur.m_CharCode != itemPer.m_CharCode) { 1327 return FALSE; 1328 } 1329 } 1330 return TRUE; 1331 } 1332 void CPDF_LayoutProcessor_Reflow::ProcessTextObject(CPDF_TextObject *pTextObj, FX_FLOAT reflowWidth, CFX_AffineMatrix objMatrix) 1333 { 1334 if(reflowWidth < 0 || !m_pCurrLine || !m_pTempLine) { 1335 return; 1336 } 1337 if(IsSameTextObject(pTextObj, m_pPreObj)) { 1338 return; 1339 } 1340 CPDF_PageObject* pPreObj = m_pPreObj; 1341 FX_INT32 logic = ProcessInsertObject(pTextObj, objMatrix); 1342 m_pPreObj = pTextObj; 1343 m_perMatrix.Copy(objMatrix); 1344 int size = m_pTempLine->GetSize(); 1345 int curs = m_pCurrLine->GetSize(); 1346 CreateRFData(pTextObj); 1347 size = m_pTempLine->GetSize(); 1348 int reds = m_pReflowedPage->m_pReflowed->GetSize(); 1349 if(size == 0) { 1350 return; 1351 } 1352 if(logic == 1) { 1353 m_fCurrLineWidth += pTextObj->GetBBox(&objMatrix).Height() / 3; 1354 } else if(logic == 3 && curs) { 1355 m_fCurrLineWidth -= (*m_pCurrLine)[curs - 1]->m_Width; 1356 m_pCurrLine->Delete(curs - 1); 1357 } 1358 int beginPos = 0, endPos = m_pTempLine->GetSize() - 1; 1359 while(beginPos <= endPos) { 1360 int tempBeginPos = beginPos; 1361 int tempEndPos = endPos; 1362 FX_FLOAT all_width = GetDatasWidth( beginPos, endPos); 1363 if(all_width < reflowWidth - m_fCurrLineWidth) { 1364 CRF_CharData* pBeginData = (CRF_CharData*)(*m_pTempLine)[beginPos]; 1365 CFX_AffineMatrix matrix(1, 0, 0, 1, -pBeginData->m_PosX + m_fCurrLineWidth, -pBeginData->m_PosY); 1366 Transform(&matrix, m_pTempLine, beginPos, endPos - beginPos + 1); 1367 AddTemp2CurrLine(beginPos, endPos - beginPos + 1); 1368 m_pTempLine->RemoveAll(); 1369 return; 1370 } 1371 int midPos ; 1372 if(tempBeginPos >= tempEndPos && tempEndPos != 0) { 1373 midPos = tempEndPos; 1374 } else { 1375 while (tempBeginPos < tempEndPos ) { 1376 midPos = (tempEndPos - tempBeginPos) / 2 + tempBeginPos; 1377 if(midPos == tempBeginPos || midPos == tempEndPos) { 1378 break; 1379 } 1380 FX_FLOAT w = GetDatasWidth( beginPos, midPos); 1381 if(w < reflowWidth - m_fCurrLineWidth) { 1382 tempBeginPos = midPos; 1383 } else { 1384 tempEndPos = midPos; 1385 } 1386 } 1387 midPos = tempBeginPos; 1388 if(midPos == 0) { 1389 FX_FLOAT w = GetDatasWidth( beginPos, 1); 1390 if(w > reflowWidth - m_fCurrLineWidth) { 1391 midPos = -1; 1392 } 1393 } 1394 } 1395 if(midPos == -1) { 1396 int count = m_pCurrLine->GetSize(); 1397 if(count == 0) { 1398 midPos = 0; 1399 } 1400 } 1401 int f = -1; 1402 int i = 0; 1403 for(i = midPos; i >= beginPos; i--) { 1404 CRF_CharData* pData = (CRF_CharData*)(*m_pTempLine)[i]; 1405 CFX_WideString Wstr = pData->m_pCharState->m_pFont->UnicodeFromCharCode(pData->m_CharCode); 1406 FX_WCHAR cha = Wstr.GetAt(0); 1407 if(i < m_pTempLine->GetSize() - 1) { 1408 CRF_CharData* pNextData = (CRF_CharData*)(*m_pTempLine)[i + 1]; 1409 if(pNextData->m_PosX - (pData->m_PosX + pData->m_Width) >= pData->m_Height / 4) { 1410 f = i; 1411 i++; 1412 } 1413 } 1414 if(f == -1) { 1415 if(IsCanBreakAfter((FX_DWORD)cha)) { 1416 f = i; 1417 i++; 1418 } else if(IsCanBreakBefore((FX_DWORD)cha)) { 1419 f = i - 1; 1420 if(f < beginPos) { 1421 f = -1; 1422 } 1423 } 1424 } 1425 if(f != -1) { 1426 CRF_CharData* pBeginData = (CRF_CharData*)(*m_pTempLine)[beginPos]; 1427 CFX_AffineMatrix matrix(1, 0, 0, 1, -pBeginData->m_PosX + m_fCurrLineWidth, -pBeginData->m_PosY); 1428 Transform(&matrix, m_pTempLine, beginPos, f - beginPos + 1); 1429 CRF_Data* pData = (*m_pTempLine)[0]; 1430 AddTemp2CurrLine(beginPos, f - beginPos + 1); 1431 beginPos = i; 1432 FinishedCurrLine(); 1433 f = 1; 1434 break; 1435 } 1436 } 1437 if(f == -1 && i < beginPos) { 1438 if( m_pCurrLine->GetSize()) { 1439 int count = m_pCurrLine->GetSize(); 1440 f = -1; 1441 for(int i = count - 1; i >= 0; i--) { 1442 CRF_Data* pData = (*m_pCurrLine)[i]; 1443 if(pData->GetType() != CRF_Data::Text) { 1444 f = i + 1; 1445 } else { 1446 CRF_CharData* pCharData = (CRF_CharData*)pData; 1447 CFX_WideString Wstr = pCharData->m_pCharState->m_pFont->UnicodeFromCharCode(pCharData->m_CharCode); 1448 FX_WCHAR cha = Wstr.GetAt(0); 1449 if(IsCanBreakAfter(cha)) { 1450 f = i + 1; 1451 i++; 1452 } else if(IsCanBreakBefore(cha)) { 1453 f = i; 1454 } 1455 if(f == 0) { 1456 f = -1; 1457 } 1458 } 1459 if(f != -1) { 1460 FinishedCurrLine(); 1461 if(f < count) { 1462 int reflowdCount = m_pReflowedPage->m_pReflowed->GetSize(); 1463 int pos = reflowdCount + f - count; 1464 CRF_CharData* pData = (CRF_CharData*)(*m_pReflowedPage->m_pReflowed)[pos]; 1465 CFX_AffineMatrix matrix(1, 0, 0, 1, -pData->m_PosX + m_fCurrLineWidth, -pData->m_PosY); 1466 Transform(&matrix, m_pReflowedPage->m_pReflowed, pos, reflowdCount - pos); 1467 for(int j = pos; j < reflowdCount; j++) { 1468 AddData2CurrLine((*m_pReflowedPage->m_pReflowed)[j]); 1469 } 1470 m_pReflowedPage->m_pReflowed->Delete(pos, count - f); 1471 if(logic == 3) { 1472 m_fCurrLineWidth += pTextObj->GetBBox(&objMatrix).Height() / 3; 1473 } 1474 } 1475 break; 1476 } 1477 } 1478 } 1479 if(f == -1) { 1480 CRF_CharData* pData = (CRF_CharData*)(*m_pTempLine)[beginPos]; 1481 CFX_AffineMatrix matrix(1, 0, 0, 1, -pData->m_PosX + m_fCurrLineWidth, -pData->m_PosY); 1482 if(beginPos == midPos) { 1483 Transform(&matrix, pData); 1484 FX_RECT rect; 1485 pData->m_pCharState->m_pFont->GetFontBBox(rect); 1486 FX_FLOAT* pmatrix = pTextObj->m_TextState.GetMatrix(); 1487 CFX_AffineMatrix textMatrix(pmatrix[0], pmatrix[1], pmatrix[2], pmatrix[3], 0, 0); 1488 FX_FLOAT width = pData->m_Height * (rect.right - rect.left) / 1000; 1489 FX_FLOAT f = (reflowWidth - m_fCurrLineWidth) / width; 1490 pData->m_PosY *= f; 1491 pData->m_Width *= f; 1492 pData->m_Height *= f; 1493 pData->m_pCharState = GetCharState(pData->m_pCharState->m_pTextObj, pData->m_pCharState->m_pFont, pData->m_Height, pData->m_pCharState->m_Color); 1494 AddData2CurrLine(pData); 1495 } else { 1496 for(int m = beginPos; m <= midPos; m++) { 1497 CRF_CharData* pData = (CRF_CharData*)(*m_pTempLine)[m]; 1498 Transform(&matrix, pData); 1499 AddData2CurrLine(pData); 1500 } 1501 } 1502 FinishedCurrLine(); 1503 beginPos = midPos + 1; 1504 } 1505 } 1506 } 1507 m_pTempLine->RemoveAll(); 1508 return; 1509 } 1510 void CPDF_LayoutProcessor_Reflow::ProcessUnitaryObjs(CPDF_PageObjects *pObjs, FX_FLOAT reflowWidth, CFX_AffineMatrix objMatrix) 1511 { 1512 if(!pObjs) { 1513 return; 1514 } 1515 CFX_FloatRect ObjBBox = pObjs->CalcBoundingBox(); 1516 objMatrix.TransformRect(ObjBBox); 1517 FX_FLOAT ObjWidth = ObjBBox.Width(); 1518 FX_FLOAT ObjHeight = ObjBBox.Height(); 1519 CFX_AffineMatrix matrix; 1520 if(ObjWidth <= reflowWidth - m_fCurrLineWidth) { 1521 matrix.Set(1, 0, 0, 1, m_fCurrLineWidth , 0); 1522 } else if(ObjWidth <= reflowWidth) { 1523 FinishedCurrLine(); 1524 matrix.Set(1, 0, 0, 1, 0, 0); 1525 } else { 1526 FinishedCurrLine(); 1527 FX_FLOAT f = reflowWidth / ObjWidth ; 1528 matrix.Set(f, 0, 0, f, 0, 0); 1529 } 1530 CFX_AffineMatrix tempMatrix = matrix; 1531 matrix.Concat(objMatrix); 1532 FX_POSITION pos = pObjs->GetFirstObjectPosition(); 1533 while(pos) { 1534 CPDF_PageObject* pObj = pObjs->GetNextObject(pos); 1535 if(pObj->m_Type == PDFPAGE_TEXT) { 1536 FX_INT32 ret = LogicPreObj((CPDF_TextObject*)pObj); 1537 if(ret == 1 || ret == 2) { 1538 continue; 1539 } 1540 } 1541 CreateRFData(pObj, &matrix); 1542 } 1543 if (m_pTempLine) { 1544 Transform(&tempMatrix, m_pTempLine, 0, m_pTempLine->GetSize()); 1545 AddTemp2CurrLine(0, m_pTempLine->GetSize()); 1546 m_pTempLine->RemoveAll(); 1547 } 1548 } 1549 void CPDF_LayoutProcessor_Reflow::ProcessPathObject(CPDF_PathObject *pObj, FX_FLOAT reflowWidth) 1550 { 1551 } 1552
