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 "xfa/fgas/layout/fgas_textbreak.h" 8 9 #include <algorithm> 10 11 #include "core/fxcrt/fx_arabic.h" 12 #include "core/fxcrt/fx_arb.h" 13 #include "core/fxcrt/fx_memory.h" 14 #include "third_party/base/ptr_util.h" 15 #include "xfa/fgas/font/cfgas_gefont.h" 16 #include "xfa/fgas/layout/fgas_linebreak.h" 17 18 namespace { 19 20 typedef uint32_t (CFX_TxtBreak::*FX_TxtBreak_LPFAppendChar)( 21 CFX_TxtChar* pCurChar, 22 int32_t iRotation); 23 const FX_TxtBreak_LPFAppendChar g_FX_TxtBreak_lpfAppendChar[16] = { 24 &CFX_TxtBreak::AppendChar_Others, &CFX_TxtBreak::AppendChar_Tab, 25 &CFX_TxtBreak::AppendChar_Others, &CFX_TxtBreak::AppendChar_Control, 26 &CFX_TxtBreak::AppendChar_Combination, &CFX_TxtBreak::AppendChar_Others, 27 &CFX_TxtBreak::AppendChar_Others, &CFX_TxtBreak::AppendChar_Arabic, 28 &CFX_TxtBreak::AppendChar_Arabic, &CFX_TxtBreak::AppendChar_Arabic, 29 &CFX_TxtBreak::AppendChar_Arabic, &CFX_TxtBreak::AppendChar_Arabic, 30 &CFX_TxtBreak::AppendChar_Arabic, &CFX_TxtBreak::AppendChar_Others, 31 &CFX_TxtBreak::AppendChar_Others, &CFX_TxtBreak::AppendChar_Others, 32 }; 33 34 } // namespace 35 36 CFX_TxtBreak::CFX_TxtBreak(uint32_t dwPolicies) 37 : m_dwPolicies(dwPolicies), 38 m_iLineWidth(2000000), 39 m_dwLayoutStyles(0), 40 m_bVertical(false), 41 m_bArabicContext(false), 42 m_bArabicShapes(false), 43 m_bRTL(false), 44 m_bSingleLine(false), 45 m_bCombText(false), 46 m_iArabicContext(1), 47 m_iCurArabicContext(1), 48 m_pFont(nullptr), 49 m_iFontSize(240), 50 m_bEquidistant(true), 51 m_iTabWidth(720000), 52 m_wDefChar(0xFEFF), 53 m_wParagBreakChar(L'\n'), 54 m_iDefChar(0), 55 m_iLineRotation(0), 56 m_iCharRotation(0), 57 m_iRotation(0), 58 m_iAlignment(FX_TXTLINEALIGNMENT_Left), 59 m_dwContextCharStyles(0), 60 m_iCombWidth(360000), 61 m_pUserData(nullptr), 62 m_eCharType(FX_CHARTYPE_Unknown), 63 m_bArabicNumber(false), 64 m_bArabicComma(false), 65 m_pCurLine(nullptr), 66 m_iReady(0), 67 m_iTolerance(0), 68 m_iHorScale(100), 69 m_iCharSpace(0) { 70 m_bPagination = (m_dwPolicies & FX_TXTBREAKPOLICY_Pagination) != 0; 71 int32_t iSize = m_bPagination ? sizeof(CFX_Char) : sizeof(CFX_TxtChar); 72 m_pTxtLine1 = pdfium::MakeUnique<CFX_TxtLine>(iSize); 73 m_pTxtLine2 = pdfium::MakeUnique<CFX_TxtLine>(iSize); 74 m_pCurLine = m_pTxtLine1.get(); 75 ResetArabicContext(); 76 } 77 78 CFX_TxtBreak::~CFX_TxtBreak() { 79 Reset(); 80 } 81 82 void CFX_TxtBreak::SetLineWidth(FX_FLOAT fLineWidth) { 83 m_iLineWidth = FXSYS_round(fLineWidth * 20000.0f); 84 ASSERT(m_iLineWidth >= 20000); 85 } 86 87 void CFX_TxtBreak::SetLinePos(FX_FLOAT fLinePos) { 88 int32_t iLinePos = 89 std::min(std::max(FXSYS_round(fLinePos * 20000.0f), 0), m_iLineWidth); 90 m_pCurLine->m_iStart = iLinePos; 91 m_pCurLine->m_iWidth += iLinePos; 92 } 93 94 void CFX_TxtBreak::SetLayoutStyles(uint32_t dwLayoutStyles) { 95 m_dwLayoutStyles = dwLayoutStyles; 96 m_bVertical = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_VerticalChars) != 0; 97 m_bArabicContext = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ArabicContext) != 0; 98 m_bArabicShapes = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ArabicShapes) != 0; 99 m_bRTL = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_RTLReadingOrder) != 0; 100 m_bSingleLine = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_SingleLine) != 0; 101 m_bCombText = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_CombText) != 0; 102 ResetArabicContext(); 103 m_iLineRotation = GetLineRotation(m_dwLayoutStyles); 104 m_iRotation = m_iLineRotation + m_iCharRotation; 105 m_iRotation %= 4; 106 } 107 108 void CFX_TxtBreak::SetFont(const CFX_RetainPtr<CFGAS_GEFont>& pFont) { 109 if (!pFont || pFont == m_pFont) 110 return; 111 112 SetBreakStatus(); 113 m_pFont = pFont; 114 FontChanged(); 115 } 116 117 void CFX_TxtBreak::SetFontSize(FX_FLOAT fFontSize) { 118 int32_t iFontSize = FXSYS_round(fFontSize * 20.0f); 119 if (m_iFontSize == iFontSize) 120 return; 121 122 SetBreakStatus(); 123 m_iFontSize = iFontSize; 124 FontChanged(); 125 } 126 127 void CFX_TxtBreak::FontChanged() { 128 m_iDefChar = 0; 129 if (m_wDefChar == 0xFEFF || !m_pFont) 130 return; 131 132 m_pFont->GetCharWidth(m_wDefChar, m_iDefChar, false); 133 m_iDefChar *= m_iFontSize; 134 } 135 136 void CFX_TxtBreak::SetTabWidth(FX_FLOAT fTabWidth, bool bEquidistant) { 137 m_iTabWidth = FXSYS_round(fTabWidth * 20000.0f); 138 if (m_iTabWidth < FX_TXTBREAK_MinimumTabWidth) 139 m_iTabWidth = FX_TXTBREAK_MinimumTabWidth; 140 141 m_bEquidistant = bEquidistant; 142 } 143 144 void CFX_TxtBreak::SetDefaultChar(FX_WCHAR wch) { 145 m_wDefChar = wch; 146 m_iDefChar = 0; 147 if (m_wDefChar == 0xFEFF || !m_pFont) 148 return; 149 150 m_pFont->GetCharWidth(m_wDefChar, m_iDefChar, false); 151 if (m_iDefChar < 0) 152 m_iDefChar = 0; 153 else 154 m_iDefChar *= m_iFontSize; 155 } 156 157 void CFX_TxtBreak::SetParagraphBreakChar(FX_WCHAR wch) { 158 if (wch != L'\r' && wch != L'\n') 159 return; 160 m_wParagBreakChar = wch; 161 } 162 163 void CFX_TxtBreak::SetLineBreakTolerance(FX_FLOAT fTolerance) { 164 m_iTolerance = FXSYS_round(fTolerance * 20000.0f); 165 } 166 167 void CFX_TxtBreak::SetCharRotation(int32_t iCharRotation) { 168 if (iCharRotation < 0) 169 iCharRotation += (-iCharRotation / 4 + 1) * 4; 170 else if (iCharRotation > 3) 171 iCharRotation -= (iCharRotation / 4) * 4; 172 173 if (m_iCharRotation == iCharRotation) 174 return; 175 176 SetBreakStatus(); 177 m_iCharRotation = iCharRotation; 178 m_iRotation = m_iLineRotation + m_iCharRotation; 179 m_iRotation %= 4; 180 } 181 182 void CFX_TxtBreak::SetAlignment(int32_t iAlignment) { 183 ASSERT(iAlignment >= FX_TXTLINEALIGNMENT_Left && 184 iAlignment <= FX_TXTLINEALIGNMENT_Distributed); 185 m_iAlignment = iAlignment; 186 ResetArabicContext(); 187 } 188 189 void CFX_TxtBreak::ResetContextCharStyles() { 190 m_dwContextCharStyles = m_bArabicContext ? m_iCurAlignment : m_iAlignment; 191 if (m_bArabicNumber) 192 m_dwContextCharStyles |= FX_TXTCHARSTYLE_ArabicNumber; 193 if (m_bArabicComma) 194 m_dwContextCharStyles |= FX_TXTCHARSTYLE_ArabicComma; 195 if ((m_bArabicContext && m_bCurRTL) || (!m_bArabicContext && m_bRTL)) 196 m_dwContextCharStyles |= FX_TXTCHARSTYLE_RTLReadingOrder; 197 m_dwContextCharStyles |= (m_iArabicContext << 8); 198 } 199 200 void CFX_TxtBreak::SetCombWidth(FX_FLOAT fCombWidth) { 201 m_iCombWidth = FXSYS_round(fCombWidth * 20000.0f); 202 } 203 204 void CFX_TxtBreak::SetUserData(void* pUserData) { 205 if (m_pUserData == pUserData) 206 return; 207 208 SetBreakStatus(); 209 m_pUserData = pUserData; 210 } 211 212 void CFX_TxtBreak::SetBreakStatus() { 213 if (m_bPagination) 214 return; 215 216 int32_t iCount = m_pCurLine->CountChars(); 217 if (iCount < 1) 218 return; 219 220 CFX_TxtChar* pTC = m_pCurLine->GetCharPtr(iCount - 1); 221 if (pTC->m_dwStatus == 0) 222 pTC->m_dwStatus = FX_TXTBREAK_PieceBreak; 223 } 224 225 void CFX_TxtBreak::SetHorizontalScale(int32_t iScale) { 226 if (iScale < 0) 227 iScale = 0; 228 if (iScale == m_iHorScale) 229 return; 230 231 SetBreakStatus(); 232 m_iHorScale = iScale; 233 } 234 235 void CFX_TxtBreak::SetCharSpace(FX_FLOAT fCharSpace) { 236 m_iCharSpace = FXSYS_round(fCharSpace * 20000.0f); 237 } 238 239 static const int32_t gs_FX_TxtLineRotations[8] = {0, 3, 1, 0, 2, 1, 3, 2}; 240 241 int32_t CFX_TxtBreak::GetLineRotation(uint32_t dwStyles) const { 242 return gs_FX_TxtLineRotations[(dwStyles & 0x0E) >> 1]; 243 } 244 245 CFX_TxtChar* CFX_TxtBreak::GetLastChar(int32_t index, bool bOmitChar) const { 246 std::vector<CFX_TxtChar>& ca = *m_pCurLine->m_pLineChars.get(); 247 int32_t iCount = pdfium::CollectionSize<int32_t>(ca); 248 if (index < 0 || index >= iCount) 249 return nullptr; 250 251 int32_t iStart = iCount - 1; 252 while (iStart > -1) { 253 CFX_TxtChar* pTC = &ca[iStart--]; 254 if (bOmitChar && pTC->GetCharType() == FX_CHARTYPE_Combination) 255 continue; 256 if (--index < 0) 257 return pTC; 258 } 259 return nullptr; 260 } 261 262 CFX_TxtLine* CFX_TxtBreak::GetTxtLine() const { 263 if (m_iReady == 1) 264 return m_pTxtLine1.get(); 265 if (m_iReady == 2) 266 return m_pTxtLine2.get(); 267 return nullptr; 268 } 269 270 CFX_TxtPieceArray* CFX_TxtBreak::GetTxtPieces() const { 271 CFX_TxtLine* pTxtLine = GetTxtLine(); 272 return pTxtLine ? pTxtLine->m_pLinePieces.get() : nullptr; 273 } 274 275 inline FX_CHARTYPE CFX_TxtBreak::GetUnifiedCharType( 276 FX_CHARTYPE chartype) const { 277 return chartype >= FX_CHARTYPE_ArabicAlef ? FX_CHARTYPE_Arabic : chartype; 278 } 279 280 void CFX_TxtBreak::ResetArabicContext() { 281 if (m_bArabicContext) { 282 m_bCurRTL = m_iCurArabicContext > 1; 283 m_iCurAlignment = m_iCurArabicContext > 1 ? FX_TXTLINEALIGNMENT_Right 284 : FX_TXTLINEALIGNMENT_Left; 285 m_iCurAlignment |= (m_iAlignment & FX_TXTLINEALIGNMENT_HigherMask); 286 m_bArabicNumber = m_iArabicContext >= 1 && m_bArabicShapes; 287 } else { 288 if (m_bPagination) { 289 m_bCurRTL = false; 290 m_iCurAlignment = 0; 291 } else { 292 m_bCurRTL = m_bRTL; 293 m_iCurAlignment = m_iAlignment; 294 } 295 if (m_bRTL) 296 m_bArabicNumber = m_iArabicContext >= 1; 297 else 298 m_bArabicNumber = m_iArabicContext > 1; 299 m_bArabicNumber = m_bArabicNumber && m_bArabicShapes; 300 } 301 m_bArabicComma = m_bArabicNumber; 302 ResetContextCharStyles(); 303 } 304 305 void CFX_TxtBreak::AppendChar_PageLoad(CFX_TxtChar* pCurChar, 306 uint32_t dwProps) { 307 if (!m_bPagination) { 308 pCurChar->m_dwStatus = 0; 309 pCurChar->m_pUserData = m_pUserData; 310 } 311 if (m_bArabicContext || m_bArabicShapes) { 312 int32_t iBidiCls = (dwProps & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS; 313 int32_t iArabicContext = 314 (iBidiCls == FX_BIDICLASS_R || iBidiCls == FX_BIDICLASS_AL) 315 ? 2 316 : ((iBidiCls == FX_BIDICLASS_L || iBidiCls == FX_BIDICLASS_S) ? 0 317 : 1); 318 if (iArabicContext != m_iArabicContext && iArabicContext != 1) { 319 m_iArabicContext = iArabicContext; 320 if (m_iCurArabicContext == 1) 321 m_iCurArabicContext = iArabicContext; 322 323 ResetArabicContext(); 324 if (!m_bPagination) { 325 CFX_TxtChar* pLastChar = GetLastChar(1, false); 326 if (pLastChar && pLastChar->m_dwStatus < 1) 327 pLastChar->m_dwStatus = FX_TXTBREAK_PieceBreak; 328 } 329 } 330 } 331 pCurChar->m_dwCharStyles = m_dwContextCharStyles; 332 } 333 334 uint32_t CFX_TxtBreak::AppendChar_Combination(CFX_TxtChar* pCurChar, 335 int32_t iRotation) { 336 FX_WCHAR wch = pCurChar->m_wCharCode; 337 FX_WCHAR wForm; 338 int32_t iCharWidth = 0; 339 pCurChar->m_iCharWidth = -1; 340 if (m_bCombText) { 341 iCharWidth = m_iCombWidth; 342 } else { 343 if (m_bVertical != FX_IsOdd(iRotation)) { 344 iCharWidth = 1000; 345 } else { 346 wForm = wch; 347 if (!m_bPagination) { 348 CFX_TxtChar* pLastChar = GetLastChar(0, false); 349 if (pLastChar && 350 (pLastChar->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicShadda) == 0) { 351 bool bShadda = false; 352 if (wch == 0x0651) { 353 FX_WCHAR wLast = pLastChar->m_wCharCode; 354 if (wLast >= 0x064C && wLast <= 0x0650) { 355 wForm = FX_GetArabicFromShaddaTable(wLast); 356 bShadda = true; 357 } 358 } else if (wch >= 0x064C && wch <= 0x0650) { 359 if (pLastChar->m_wCharCode == 0x0651) { 360 wForm = FX_GetArabicFromShaddaTable(wch); 361 bShadda = true; 362 } 363 } 364 if (bShadda) { 365 pLastChar->m_dwCharStyles |= FX_TXTCHARSTYLE_ArabicShadda; 366 pLastChar->m_iCharWidth = 0; 367 pCurChar->m_dwCharStyles |= FX_TXTCHARSTYLE_ArabicShadda; 368 } 369 } 370 } 371 if (!m_pFont->GetCharWidth(wForm, iCharWidth, false)) 372 iCharWidth = 0; 373 } 374 iCharWidth *= m_iFontSize; 375 iCharWidth = iCharWidth * m_iHorScale / 100; 376 } 377 pCurChar->m_iCharWidth = -iCharWidth; 378 return FX_TXTBREAK_None; 379 } 380 381 uint32_t CFX_TxtBreak::AppendChar_Tab(CFX_TxtChar* pCurChar, 382 int32_t iRotation) { 383 m_eCharType = FX_CHARTYPE_Tab; 384 if ((m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ExpandTab) == 0) 385 return FX_TXTBREAK_None; 386 387 int32_t& iLineWidth = m_pCurLine->m_iWidth; 388 int32_t iCharWidth; 389 if (m_bCombText) { 390 iCharWidth = m_iCombWidth; 391 } else { 392 if (m_bEquidistant) { 393 iCharWidth = iLineWidth; 394 iCharWidth = m_iTabWidth * (iCharWidth / m_iTabWidth + 1) - iCharWidth; 395 if (iCharWidth < FX_TXTBREAK_MinimumTabWidth) 396 iCharWidth += m_iTabWidth; 397 } else { 398 iCharWidth = m_iTabWidth; 399 } 400 } 401 402 pCurChar->m_iCharWidth = iCharWidth; 403 iLineWidth += iCharWidth; 404 if (!m_bSingleLine && iLineWidth >= m_iLineWidth + m_iTolerance) 405 return EndBreak(FX_TXTBREAK_LineBreak); 406 407 return FX_TXTBREAK_None; 408 } 409 410 uint32_t CFX_TxtBreak::AppendChar_Control(CFX_TxtChar* pCurChar, 411 int32_t iRotation) { 412 m_eCharType = FX_CHARTYPE_Control; 413 uint32_t dwRet = FX_TXTBREAK_None; 414 if (!m_bSingleLine) { 415 FX_WCHAR wch = pCurChar->m_wCharCode; 416 switch (wch) { 417 case L'\v': 418 case 0x2028: 419 dwRet = FX_TXTBREAK_LineBreak; 420 break; 421 case L'\f': 422 dwRet = FX_TXTBREAK_PageBreak; 423 break; 424 case 0x2029: 425 dwRet = FX_TXTBREAK_ParagraphBreak; 426 break; 427 default: 428 if (wch == m_wParagBreakChar) 429 dwRet = FX_TXTBREAK_ParagraphBreak; 430 break; 431 } 432 if (dwRet != FX_TXTBREAK_None) 433 dwRet = EndBreak(dwRet); 434 } 435 return dwRet; 436 } 437 438 uint32_t CFX_TxtBreak::AppendChar_Arabic(CFX_TxtChar* pCurChar, 439 int32_t iRotation) { 440 FX_CHARTYPE chartype = pCurChar->GetCharType(); 441 int32_t& iLineWidth = m_pCurLine->m_iWidth; 442 FX_WCHAR wForm; 443 int32_t iCharWidth = 0; 444 CFX_TxtChar* pLastChar = nullptr; 445 bool bAlef = false; 446 if (!m_bCombText && m_eCharType >= FX_CHARTYPE_ArabicAlef && 447 m_eCharType <= FX_CHARTYPE_ArabicDistortion) { 448 pLastChar = GetLastChar(1); 449 if (pLastChar) { 450 iCharWidth = pLastChar->m_iCharWidth; 451 if (iCharWidth > 0) 452 iLineWidth -= iCharWidth; 453 454 CFX_Char* pPrevChar = GetLastChar(2); 455 wForm = pdfium::arabic::GetFormChar(pLastChar, pPrevChar, pCurChar); 456 bAlef = (wForm == 0xFEFF && 457 pLastChar->GetCharType() == FX_CHARTYPE_ArabicAlef); 458 int32_t iLastRotation = pLastChar->m_nRotation + m_iLineRotation; 459 if (m_bVertical && (pLastChar->m_dwCharProps & 0x8000) != 0) 460 iLastRotation++; 461 if (m_bVertical != FX_IsOdd(iLastRotation)) 462 iCharWidth = 1000; 463 else 464 m_pFont->GetCharWidth(wForm, iCharWidth, false); 465 466 if (wForm == 0xFEFF) 467 iCharWidth = m_iDefChar; 468 469 iCharWidth *= m_iFontSize; 470 iCharWidth = iCharWidth * m_iHorScale / 100; 471 pLastChar->m_iCharWidth = iCharWidth; 472 iLineWidth += iCharWidth; 473 iCharWidth = 0; 474 } 475 } 476 477 m_eCharType = chartype; 478 wForm = pdfium::arabic::GetFormChar(pCurChar, bAlef ? nullptr : pLastChar, 479 nullptr); 480 if (m_bCombText) { 481 iCharWidth = m_iCombWidth; 482 } else { 483 if (m_bVertical != FX_IsOdd(iRotation)) 484 iCharWidth = 1000; 485 else 486 m_pFont->GetCharWidth(wForm, iCharWidth, false); 487 488 if (wForm == 0xFEFF) 489 iCharWidth = m_iDefChar; 490 491 iCharWidth *= m_iFontSize; 492 iCharWidth = iCharWidth * m_iHorScale / 100; 493 } 494 pCurChar->m_iCharWidth = iCharWidth; 495 iLineWidth += iCharWidth; 496 m_pCurLine->m_iArabicChars++; 497 if (!m_bSingleLine && iLineWidth > m_iLineWidth + m_iTolerance) 498 return EndBreak(FX_TXTBREAK_LineBreak); 499 return FX_TXTBREAK_None; 500 } 501 502 uint32_t CFX_TxtBreak::AppendChar_Others(CFX_TxtChar* pCurChar, 503 int32_t iRotation) { 504 uint32_t dwProps = pCurChar->m_dwCharProps; 505 FX_CHARTYPE chartype = pCurChar->GetCharType(); 506 int32_t& iLineWidth = m_pCurLine->m_iWidth; 507 int32_t iCharWidth = 0; 508 m_eCharType = chartype; 509 FX_WCHAR wch = pCurChar->m_wCharCode; 510 FX_WCHAR wForm = wch; 511 if (chartype == FX_CHARTYPE_Numeric) { 512 if (m_bArabicNumber) { 513 wForm = wch + 0x0630; 514 pCurChar->m_dwCharStyles |= FX_TXTCHARSTYLE_ArabicIndic; 515 } 516 } else if (wch == L',') { 517 if (m_bArabicShapes && m_iCurArabicContext > 0) { 518 wForm = 0x060C; 519 pCurChar->m_dwCharStyles |= FX_TXTCHARSTYLE_ArabicComma; 520 } 521 } else if (m_bCurRTL || m_bVertical) { 522 wForm = FX_GetMirrorChar(wch, dwProps, m_bCurRTL, m_bVertical); 523 } 524 525 if (m_bCombText) { 526 iCharWidth = m_iCombWidth; 527 } else { 528 if (m_bVertical != FX_IsOdd(iRotation)) 529 iCharWidth = 1000; 530 else if (!m_pFont->GetCharWidth(wForm, iCharWidth, false)) 531 iCharWidth = m_iDefChar; 532 533 iCharWidth *= m_iFontSize; 534 iCharWidth = iCharWidth * m_iHorScale / 100; 535 } 536 537 iCharWidth += m_iCharSpace; 538 pCurChar->m_iCharWidth = iCharWidth; 539 iLineWidth += iCharWidth; 540 bool bBreak = (chartype != FX_CHARTYPE_Space || 541 (m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0); 542 if (!m_bSingleLine && bBreak && iLineWidth > m_iLineWidth + m_iTolerance) 543 return EndBreak(FX_TXTBREAK_LineBreak); 544 545 return FX_TXTBREAK_None; 546 } 547 548 uint32_t CFX_TxtBreak::AppendChar(FX_WCHAR wch) { 549 uint32_t dwProps = kTextLayoutCodeProperties[static_cast<uint16_t>(wch)]; 550 FX_CHARTYPE chartype = GetCharTypeFromProp(dwProps); 551 m_pCurLine->m_pLineChars->emplace_back(); 552 553 CFX_TxtChar* pCurChar = &m_pCurLine->m_pLineChars->back(); 554 pCurChar->m_wCharCode = static_cast<uint16_t>(wch); 555 pCurChar->m_nRotation = m_iCharRotation; 556 pCurChar->m_dwCharProps = dwProps; 557 pCurChar->m_dwCharStyles = 0; 558 pCurChar->m_iCharWidth = 0; 559 pCurChar->m_iHorizontalScale = m_iHorScale; 560 pCurChar->m_iVerticalScale = 100; 561 pCurChar->m_dwStatus = 0; 562 pCurChar->m_iBidiClass = 0; 563 pCurChar->m_iBidiLevel = 0; 564 pCurChar->m_iBidiPos = 0; 565 pCurChar->m_iBidiOrder = 0; 566 pCurChar->m_pUserData = nullptr; 567 AppendChar_PageLoad(pCurChar, dwProps); 568 uint32_t dwRet1 = FX_TXTBREAK_None; 569 if (chartype != FX_CHARTYPE_Combination && 570 GetUnifiedCharType(m_eCharType) != GetUnifiedCharType(chartype) && 571 m_eCharType != FX_CHARTYPE_Unknown && 572 m_pCurLine->m_iWidth > m_iLineWidth + m_iTolerance && !m_bSingleLine && 573 (m_eCharType != FX_CHARTYPE_Space || chartype != FX_CHARTYPE_Control)) { 574 dwRet1 = EndBreak(FX_TXTBREAK_LineBreak); 575 int32_t iCount = m_pCurLine->CountChars(); 576 if (iCount > 0) 577 pCurChar = &(*m_pCurLine->m_pLineChars)[iCount - 1]; 578 } 579 580 int32_t iRotation = m_iRotation; 581 if (m_bVertical && (dwProps & 0x8000) != 0) 582 iRotation = (iRotation + 1) % 4; 583 584 uint32_t dwRet2 = 585 (this->*g_FX_TxtBreak_lpfAppendChar[chartype >> FX_CHARTYPEBITS])( 586 pCurChar, iRotation); 587 return std::max(dwRet1, dwRet2); 588 } 589 590 void CFX_TxtBreak::EndBreak_UpdateArabicShapes() { 591 ASSERT(m_bArabicShapes); 592 int32_t iCount = m_pCurLine->CountChars(); 593 if (iCount < 2) 594 return; 595 596 int32_t& iLineWidth = m_pCurLine->m_iWidth; 597 CFX_TxtChar* pCur = m_pCurLine->GetCharPtr(0); 598 bool bPrevNum = (pCur->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0; 599 pCur = m_pCurLine->GetCharPtr(1); 600 FX_WCHAR wch, wForm; 601 bool bNextNum; 602 int32_t i = 1; 603 int32_t iCharWidth; 604 int32_t iRotation; 605 CFX_TxtChar* pNext; 606 do { 607 i++; 608 if (i < iCount) { 609 pNext = m_pCurLine->GetCharPtr(i); 610 bNextNum = (pNext->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0; 611 } else { 612 pNext = nullptr; 613 bNextNum = false; 614 } 615 616 wch = pCur->m_wCharCode; 617 if (wch == L'.') { 618 if (bPrevNum && bNextNum) { 619 iRotation = m_iRotation; 620 if (m_bVertical && (pCur->m_dwCharProps & 0x8000) != 0) 621 iRotation = ((iRotation + 1) & 0x03); 622 623 wForm = wch == L'.' ? 0x066B : 0x066C; 624 iLineWidth -= pCur->m_iCharWidth; 625 if (m_bCombText) { 626 iCharWidth = m_iCombWidth; 627 } else { 628 if (m_bVertical != FX_IsOdd(iRotation)) 629 iCharWidth = 1000; 630 else if (!m_pFont->GetCharWidth(wForm, iCharWidth, false)) 631 iCharWidth = m_iDefChar; 632 633 iCharWidth *= m_iFontSize; 634 iCharWidth = iCharWidth * m_iHorScale / 100; 635 } 636 pCur->m_iCharWidth = iCharWidth; 637 iLineWidth += iCharWidth; 638 } 639 } 640 bPrevNum = (pCur->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0; 641 pCur = pNext; 642 } while (i < iCount); 643 } 644 645 bool CFX_TxtBreak::EndBreak_SplitLine(CFX_TxtLine* pNextLine, 646 bool bAllChars, 647 uint32_t dwStatus) { 648 int32_t iCount = m_pCurLine->CountChars(); 649 bool bDone = false; 650 CFX_TxtChar* pTC; 651 if (!m_bSingleLine && m_pCurLine->m_iWidth > m_iLineWidth + m_iTolerance) { 652 pTC = m_pCurLine->GetCharPtr(iCount - 1); 653 switch (pTC->GetCharType()) { 654 case FX_CHARTYPE_Tab: 655 case FX_CHARTYPE_Control: 656 break; 657 case FX_CHARTYPE_Space: 658 if ((m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0) { 659 SplitTextLine(m_pCurLine, pNextLine, !m_bPagination && bAllChars); 660 bDone = true; 661 } 662 break; 663 default: 664 SplitTextLine(m_pCurLine, pNextLine, !m_bPagination && bAllChars); 665 bDone = true; 666 break; 667 } 668 } 669 670 iCount = m_pCurLine->CountChars(); 671 CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces.get(); 672 CFX_TxtPiece tp; 673 if (m_bPagination) { 674 tp.m_dwStatus = dwStatus; 675 tp.m_iStartPos = m_pCurLine->m_iStart; 676 tp.m_iWidth = m_pCurLine->m_iWidth; 677 tp.m_iStartChar = 0; 678 tp.m_iChars = iCount; 679 tp.m_pChars = m_pCurLine->m_pLineChars.get(); 680 tp.m_pUserData = m_pUserData; 681 pTC = m_pCurLine->GetCharPtr(0); 682 tp.m_dwCharStyles = pTC->m_dwCharStyles; 683 tp.m_iHorizontalScale = pTC->m_iHorizontalScale; 684 tp.m_iVerticalScale = pTC->m_iVerticalScale; 685 pCurPieces->Add(tp); 686 m_pCurLine = pNextLine; 687 m_eCharType = FX_CHARTYPE_Unknown; 688 return true; 689 } 690 if (bAllChars && !bDone) { 691 int32_t iEndPos = m_pCurLine->m_iWidth; 692 GetBreakPos(*m_pCurLine->m_pLineChars.get(), iEndPos, bAllChars, true); 693 } 694 return false; 695 } 696 697 void CFX_TxtBreak::EndBreak_BidiLine(std::deque<FX_TPO>* tpos, 698 uint32_t dwStatus) { 699 CFX_TxtPiece tp; 700 FX_TPO tpo; 701 CFX_TxtChar* pTC; 702 int32_t i; 703 int32_t j; 704 std::vector<CFX_TxtChar>& chars = *m_pCurLine->m_pLineChars.get(); 705 int32_t iCount = m_pCurLine->CountChars(); 706 bool bDone = (m_pCurLine->m_iArabicChars > 0 || m_bCurRTL); 707 if (!m_bPagination && bDone) { 708 int32_t iBidiNum = 0; 709 for (i = 0; i < iCount; i++) { 710 pTC = &chars[i]; 711 pTC->m_iBidiPos = i; 712 if (pTC->GetCharType() != FX_CHARTYPE_Control) 713 iBidiNum = i; 714 if (i == 0) 715 pTC->m_iBidiLevel = 1; 716 } 717 FX_BidiLine(chars, iBidiNum + 1, m_bCurRTL ? 1 : 0); 718 } 719 720 CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces.get(); 721 if (!m_bPagination && 722 (bDone || (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_MutipleFormat) != 0)) { 723 tp.m_dwStatus = FX_TXTBREAK_PieceBreak; 724 tp.m_iStartPos = m_pCurLine->m_iStart; 725 tp.m_pChars = m_pCurLine->m_pLineChars.get(); 726 int32_t iBidiLevel = -1; 727 int32_t iCharWidth; 728 i = 0; 729 j = -1; 730 while (i < iCount) { 731 pTC = &chars[i]; 732 if (iBidiLevel < 0) { 733 iBidiLevel = pTC->m_iBidiLevel; 734 tp.m_iWidth = 0; 735 tp.m_iBidiLevel = iBidiLevel; 736 tp.m_iBidiPos = pTC->m_iBidiOrder; 737 tp.m_dwCharStyles = pTC->m_dwCharStyles; 738 tp.m_pUserData = pTC->m_pUserData; 739 tp.m_iHorizontalScale = pTC->m_iHorizontalScale; 740 tp.m_iVerticalScale = pTC->m_iVerticalScale; 741 tp.m_dwStatus = FX_TXTBREAK_PieceBreak; 742 } 743 if (iBidiLevel != pTC->m_iBidiLevel || pTC->m_dwStatus != 0) { 744 if (iBidiLevel == pTC->m_iBidiLevel) { 745 tp.m_dwStatus = pTC->m_dwStatus; 746 iCharWidth = pTC->m_iCharWidth; 747 if (iCharWidth > 0) 748 tp.m_iWidth += iCharWidth; 749 750 i++; 751 } 752 tp.m_iChars = i - tp.m_iStartChar; 753 pCurPieces->Add(tp); 754 tp.m_iStartPos += tp.m_iWidth; 755 tp.m_iStartChar = i; 756 tpo.index = ++j; 757 tpo.pos = tp.m_iBidiPos; 758 tpos->push_back(tpo); 759 iBidiLevel = -1; 760 } else { 761 iCharWidth = pTC->m_iCharWidth; 762 if (iCharWidth > 0) 763 tp.m_iWidth += iCharWidth; 764 765 i++; 766 } 767 } 768 if (i > tp.m_iStartChar) { 769 tp.m_dwStatus = dwStatus; 770 tp.m_iChars = i - tp.m_iStartChar; 771 pCurPieces->Add(tp); 772 tpo.index = ++j; 773 tpo.pos = tp.m_iBidiPos; 774 tpos->push_back(tpo); 775 } 776 if (j > -1) { 777 if (j > 0) { 778 std::sort(tpos->begin(), tpos->end()); 779 int32_t iStartPos = 0; 780 for (i = 0; i <= j; i++) { 781 tpo = (*tpos)[i]; 782 CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index); 783 ttp.m_iStartPos = iStartPos; 784 iStartPos += ttp.m_iWidth; 785 } 786 } 787 CFX_TxtPiece& ttp = pCurPieces->GetAt(j); 788 ttp.m_dwStatus = dwStatus; 789 } 790 } else { 791 tp.m_dwStatus = dwStatus; 792 tp.m_iStartPos = m_pCurLine->m_iStart; 793 tp.m_iWidth = m_pCurLine->m_iWidth; 794 tp.m_iStartChar = 0; 795 tp.m_iChars = iCount; 796 tp.m_pChars = m_pCurLine->m_pLineChars.get(); 797 tp.m_pUserData = m_pUserData; 798 pTC = &chars[0]; 799 tp.m_dwCharStyles = pTC->m_dwCharStyles; 800 tp.m_iHorizontalScale = pTC->m_iHorizontalScale; 801 tp.m_iVerticalScale = pTC->m_iVerticalScale; 802 pCurPieces->Add(tp); 803 tpos->push_back({0, 0}); 804 } 805 } 806 807 void CFX_TxtBreak::EndBreak_Alignment(const std::deque<FX_TPO>& tpos, 808 bool bAllChars, 809 uint32_t dwStatus) { 810 int32_t iNetWidth = m_pCurLine->m_iWidth; 811 int32_t iGapChars = 0; 812 int32_t iCharWidth; 813 CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces.get(); 814 int32_t i; 815 int32_t j; 816 int32_t iCount = pCurPieces->GetSize(); 817 bool bFind = false; 818 FX_TPO tpo; 819 CFX_TxtChar* pTC; 820 FX_CHARTYPE chartype; 821 for (i = iCount - 1; i > -1; i--) { 822 tpo = tpos[i]; 823 CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index); 824 if (!bFind) 825 iNetWidth = ttp.GetEndPos(); 826 827 bool bArabic = FX_IsOdd(ttp.m_iBidiLevel); 828 j = bArabic ? 0 : ttp.m_iChars - 1; 829 while (j > -1 && j < ttp.m_iChars) { 830 pTC = ttp.GetCharPtr(j); 831 if (pTC->m_nBreakType == FX_LBT_DIRECT_BRK) 832 iGapChars++; 833 if (!bFind || !bAllChars) { 834 chartype = pTC->GetCharType(); 835 if (chartype == FX_CHARTYPE_Space || chartype == FX_CHARTYPE_Control) { 836 if (!bFind) { 837 iCharWidth = pTC->m_iCharWidth; 838 if (bAllChars && iCharWidth > 0) 839 iNetWidth -= iCharWidth; 840 } 841 } else { 842 bFind = true; 843 if (!bAllChars) 844 break; 845 } 846 } 847 j += bArabic ? 1 : -1; 848 } 849 if (!bAllChars && bFind) 850 break; 851 } 852 853 int32_t iOffset = m_iLineWidth - iNetWidth; 854 int32_t iLowerAlignment = (m_iCurAlignment & FX_TXTLINEALIGNMENT_LowerMask); 855 int32_t iHigherAlignment = (m_iCurAlignment & FX_TXTLINEALIGNMENT_HigherMask); 856 if (iGapChars > 0 && (iHigherAlignment == FX_TXTLINEALIGNMENT_Distributed || 857 (iHigherAlignment == FX_TXTLINEALIGNMENT_Justified && 858 dwStatus != FX_TXTBREAK_ParagraphBreak))) { 859 int32_t iStart = -1; 860 for (i = 0; i < iCount; i++) { 861 tpo = tpos[i]; 862 CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index); 863 if (iStart < -1) 864 iStart = ttp.m_iStartPos; 865 else 866 ttp.m_iStartPos = iStart; 867 868 for (j = 0; j < ttp.m_iChars; j++) { 869 pTC = ttp.GetCharPtr(j); 870 if (pTC->m_nBreakType != FX_LBT_DIRECT_BRK || pTC->m_iCharWidth < 0) 871 continue; 872 873 int32_t k = iOffset / iGapChars; 874 pTC->m_iCharWidth += k; 875 ttp.m_iWidth += k; 876 iOffset -= k; 877 iGapChars--; 878 if (iGapChars < 1) 879 break; 880 } 881 iStart += ttp.m_iWidth; 882 } 883 } else if (iLowerAlignment > FX_TXTLINEALIGNMENT_Left) { 884 if (iLowerAlignment == FX_TXTLINEALIGNMENT_Center) 885 iOffset /= 2; 886 if (iOffset > 0) { 887 for (i = 0; i < iCount; i++) { 888 CFX_TxtPiece& ttp = pCurPieces->GetAt(i); 889 ttp.m_iStartPos += iOffset; 890 } 891 } 892 } 893 } 894 895 uint32_t CFX_TxtBreak::EndBreak(uint32_t dwStatus) { 896 ASSERT(dwStatus >= FX_TXTBREAK_PieceBreak && 897 dwStatus <= FX_TXTBREAK_PageBreak); 898 CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces.get(); 899 int32_t iCount = pCurPieces->GetSize(); 900 if (iCount > 0) { 901 CFX_TxtPiece* pLastPiece = pCurPieces->GetPtrAt(--iCount); 902 if (dwStatus > FX_TXTBREAK_PieceBreak) 903 pLastPiece->m_dwStatus = dwStatus; 904 else 905 dwStatus = pLastPiece->m_dwStatus; 906 return dwStatus; 907 } else { 908 CFX_TxtLine* pLastLine = GetTxtLine(); 909 if (pLastLine) { 910 pCurPieces = pLastLine->m_pLinePieces.get(); 911 iCount = pCurPieces->GetSize(); 912 if (iCount-- > 0) { 913 CFX_TxtPiece* pLastPiece = pCurPieces->GetPtrAt(iCount); 914 if (dwStatus > FX_TXTBREAK_PieceBreak) 915 pLastPiece->m_dwStatus = dwStatus; 916 else 917 dwStatus = pLastPiece->m_dwStatus; 918 return dwStatus; 919 } 920 return FX_TXTBREAK_None; 921 } 922 923 iCount = m_pCurLine->CountChars(); 924 if (iCount < 1) 925 return FX_TXTBREAK_None; 926 if (!m_bPagination) { 927 CFX_TxtChar* pTC = m_pCurLine->GetCharPtr(iCount - 1); 928 pTC->m_dwStatus = dwStatus; 929 } 930 if (dwStatus <= FX_TXTBREAK_PieceBreak) 931 return dwStatus; 932 } 933 934 m_iReady = (m_pCurLine == m_pTxtLine1.get()) ? 1 : 2; 935 CFX_TxtLine* pNextLine = 936 (m_pCurLine == m_pTxtLine1.get()) ? m_pTxtLine2.get() : m_pTxtLine1.get(); 937 bool bAllChars = (m_iCurAlignment > FX_TXTLINEALIGNMENT_Right); 938 if (m_bArabicShapes) 939 EndBreak_UpdateArabicShapes(); 940 941 if (!EndBreak_SplitLine(pNextLine, bAllChars, dwStatus)) { 942 std::deque<FX_TPO> tpos; 943 EndBreak_BidiLine(&tpos, dwStatus); 944 if (!m_bPagination && m_iCurAlignment > FX_TXTLINEALIGNMENT_Left) 945 EndBreak_Alignment(tpos, bAllChars, dwStatus); 946 } 947 948 m_pCurLine = pNextLine; 949 CFX_Char* pTC = GetLastChar(0, false); 950 m_eCharType = pTC ? pTC->GetCharType() : FX_CHARTYPE_Unknown; 951 if (dwStatus == FX_TXTBREAK_ParagraphBreak) { 952 m_iArabicContext = m_iCurArabicContext = 1; 953 ResetArabicContext(); 954 } 955 return dwStatus; 956 } 957 958 int32_t CFX_TxtBreak::GetBreakPos(std::vector<CFX_TxtChar>& ca, 959 int32_t& iEndPos, 960 bool bAllChars, 961 bool bOnlyBrk) { 962 int32_t iLength = pdfium::CollectionSize<int32_t>(ca) - 1; 963 if (iLength < 1) 964 return iLength; 965 966 int32_t iBreak = -1; 967 int32_t iBreakPos = -1; 968 int32_t iIndirect = -1; 969 int32_t iIndirectPos = -1; 970 int32_t iLast = -1; 971 int32_t iLastPos = -1; 972 if (m_bSingleLine || iEndPos <= m_iLineWidth) { 973 if (!bAllChars) 974 return iLength; 975 976 iBreak = iLength; 977 iBreakPos = iEndPos; 978 } 979 980 bool bSpaceBreak = (m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0; 981 bool bNumberBreak = (m_dwPolicies & FX_TXTBREAKPOLICY_NumberBreak) != 0; 982 FX_LINEBREAKTYPE eType; 983 uint32_t nCodeProp; 984 uint32_t nCur; 985 uint32_t nNext; 986 CFX_Char* pCur = &ca[iLength--]; 987 if (bAllChars) 988 pCur->m_nBreakType = FX_LBT_UNKNOWN; 989 990 nCodeProp = pCur->m_dwCharProps; 991 nNext = nCodeProp & 0x003F; 992 int32_t iCharWidth = pCur->m_iCharWidth; 993 if (iCharWidth > 0) 994 iEndPos -= iCharWidth; 995 996 while (iLength >= 0) { 997 pCur = &ca[iLength]; 998 nCodeProp = pCur->m_dwCharProps; 999 nCur = nCodeProp & 0x003F; 1000 if (nCur == FX_CBP_SP) { 1001 if (nNext == FX_CBP_SP) 1002 eType = bSpaceBreak ? FX_LBT_DIRECT_BRK : FX_LBT_PROHIBITED_BRK; 1003 else 1004 eType = gs_FX_LineBreak_PairTable[nCur][nNext]; 1005 } else if (bNumberBreak && nCur == FX_CBP_NU && nNext == FX_CBP_NU) { 1006 eType = FX_LBT_DIRECT_BRK; 1007 } else { 1008 if (nNext == FX_CBP_SP) 1009 eType = FX_LBT_PROHIBITED_BRK; 1010 else 1011 eType = gs_FX_LineBreak_PairTable[nCur][nNext]; 1012 } 1013 if (bAllChars) 1014 pCur->m_nBreakType = static_cast<uint8_t>(eType); 1015 if (!bOnlyBrk) { 1016 if (m_bSingleLine || iEndPos <= m_iLineWidth || 1017 (nCur == FX_CBP_SP && !bSpaceBreak)) { 1018 if (eType == FX_LBT_DIRECT_BRK && iBreak < 0) { 1019 iBreak = iLength; 1020 iBreakPos = iEndPos; 1021 if (!bAllChars) 1022 return iLength; 1023 } else if (eType == FX_LBT_INDIRECT_BRK && iIndirect < 0) { 1024 iIndirect = iLength; 1025 iIndirectPos = iEndPos; 1026 } 1027 if (iLast < 0) { 1028 iLast = iLength; 1029 iLastPos = iEndPos; 1030 } 1031 } 1032 iCharWidth = pCur->m_iCharWidth; 1033 if (iCharWidth > 0) 1034 iEndPos -= iCharWidth; 1035 } 1036 nNext = nCodeProp & 0x003F; 1037 iLength--; 1038 } 1039 if (bOnlyBrk) 1040 return 0; 1041 if (iBreak > -1) { 1042 iEndPos = iBreakPos; 1043 return iBreak; 1044 } 1045 if (iIndirect > -1) { 1046 iEndPos = iIndirectPos; 1047 return iIndirect; 1048 } 1049 if (iLast > -1) { 1050 iEndPos = iLastPos; 1051 return iLast; 1052 } 1053 return 0; 1054 } 1055 1056 void CFX_TxtBreak::SplitTextLine(CFX_TxtLine* pCurLine, 1057 CFX_TxtLine* pNextLine, 1058 bool bAllChars) { 1059 ASSERT(pCurLine && pNextLine); 1060 int32_t iCount = pCurLine->CountChars(); 1061 if (iCount < 2) 1062 return; 1063 1064 int32_t iEndPos = pCurLine->m_iWidth; 1065 std::vector<CFX_TxtChar>& curChars = *pCurLine->m_pLineChars; 1066 int32_t iCharPos = GetBreakPos(curChars, iEndPos, bAllChars, false); 1067 if (iCharPos < 0) 1068 iCharPos = 0; 1069 1070 iCharPos++; 1071 if (iCharPos >= iCount) { 1072 pNextLine->RemoveAll(true); 1073 CFX_Char* pTC = &curChars[iCharPos - 1]; 1074 pTC->m_nBreakType = FX_LBT_UNKNOWN; 1075 return; 1076 } 1077 1078 // m_pLineChars is a unique_ptr<vector>. Assign the ref into nextChars 1079 // so we can change the m_pLineChars vector ... 1080 std::vector<CFX_TxtChar>& nextChars = *pNextLine->m_pLineChars; 1081 nextChars = 1082 std::vector<CFX_TxtChar>(curChars.begin() + iCharPos, curChars.end()); 1083 curChars.erase(curChars.begin() + iCharPos, curChars.end()); 1084 pCurLine->m_iWidth = iEndPos; 1085 CFX_TxtChar* pTC = &curChars[iCharPos - 1]; 1086 pTC->m_nBreakType = FX_LBT_UNKNOWN; 1087 iCount = pdfium::CollectionSize<int>(nextChars); 1088 int32_t iWidth = 0; 1089 for (int32_t i = 0; i < iCount; i++) { 1090 if (nextChars[i].GetCharType() >= FX_CHARTYPE_ArabicAlef) { 1091 pCurLine->m_iArabicChars--; 1092 pNextLine->m_iArabicChars++; 1093 } 1094 int32_t iCharWidth = nextChars[i].m_iCharWidth; 1095 if (iCharWidth > 0) 1096 iWidth += iCharWidth; 1097 if (m_bPagination) 1098 continue; 1099 1100 nextChars[i].m_dwStatus = 0; 1101 } 1102 pNextLine->m_iWidth = iWidth; 1103 } 1104 1105 int32_t CFX_TxtBreak::CountBreakPieces() const { 1106 CFX_TxtPieceArray* pTxtPieces = GetTxtPieces(); 1107 return pTxtPieces ? pTxtPieces->GetSize() : 0; 1108 } 1109 1110 const CFX_TxtPiece* CFX_TxtBreak::GetBreakPiece(int32_t index) const { 1111 CFX_TxtPieceArray* pTxtPieces = GetTxtPieces(); 1112 if (!pTxtPieces) 1113 return nullptr; 1114 if (index < 0 || index >= pTxtPieces->GetSize()) 1115 return nullptr; 1116 return pTxtPieces->GetPtrAt(index); 1117 } 1118 1119 void CFX_TxtBreak::ClearBreakPieces() { 1120 CFX_TxtLine* pTxtLine = GetTxtLine(); 1121 if (pTxtLine) 1122 pTxtLine->RemoveAll(true); 1123 m_iReady = 0; 1124 } 1125 1126 void CFX_TxtBreak::Reset() { 1127 m_eCharType = FX_CHARTYPE_Unknown; 1128 m_iArabicContext = 1; 1129 m_iCurArabicContext = 1; 1130 ResetArabicContext(); 1131 m_pTxtLine1->RemoveAll(true); 1132 m_pTxtLine2->RemoveAll(true); 1133 } 1134 1135 struct FX_FORMCHAR { 1136 uint16_t wch; 1137 uint16_t wForm; 1138 int32_t iWidth; 1139 }; 1140 1141 int32_t CFX_TxtBreak::GetDisplayPos(const FX_TXTRUN* pTxtRun, 1142 FXTEXT_CHARPOS* pCharPos, 1143 bool bCharCode, 1144 CFX_WideString* pWSForms) const { 1145 if (!pTxtRun || pTxtRun->iLength < 1) 1146 return 0; 1147 1148 IFX_TxtAccess* pAccess = pTxtRun->pAccess; 1149 const FDE_TEXTEDITPIECE* pIdentity = pTxtRun->pIdentity; 1150 const FX_WCHAR* pStr = pTxtRun->wsStr.c_str(); 1151 int32_t* pWidths = pTxtRun->pWidths; 1152 int32_t iLength = pTxtRun->iLength - 1; 1153 CFX_RetainPtr<CFGAS_GEFont> pFont = pTxtRun->pFont; 1154 uint32_t dwStyles = pTxtRun->dwStyles; 1155 CFX_RectF rtText(*pTxtRun->pRect); 1156 bool bRTLPiece = (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_OddBidiLevel) != 0; 1157 bool bArabicNumber = 1158 (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_ArabicNumber) != 0; 1159 bool bArabicComma = 1160 (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_ArabicComma) != 0; 1161 FX_FLOAT fFontSize = pTxtRun->fFontSize; 1162 int32_t iFontSize = FXSYS_round(fFontSize * 20.0f); 1163 int32_t iAscent = pFont->GetAscent(); 1164 int32_t iDescent = pFont->GetDescent(); 1165 int32_t iMaxHeight = iAscent - iDescent; 1166 FX_FLOAT fFontHeight = fFontSize; 1167 FX_FLOAT fAscent = fFontHeight * (FX_FLOAT)iAscent / (FX_FLOAT)iMaxHeight; 1168 FX_FLOAT fDescent = fFontHeight * (FX_FLOAT)iDescent / (FX_FLOAT)iMaxHeight; 1169 bool bVerticalDoc = (dwStyles & FX_TXTLAYOUTSTYLE_VerticalLayout) != 0; 1170 bool bVerticalChar = (dwStyles & FX_TXTLAYOUTSTYLE_VerticalChars) != 0; 1171 int32_t iRotation = GetLineRotation(dwStyles) + pTxtRun->iCharRotation; 1172 FX_FLOAT fX = rtText.left; 1173 FX_FLOAT fY; 1174 FX_FLOAT fCharWidth; 1175 FX_FLOAT fCharHeight; 1176 int32_t iHorScale = pTxtRun->iHorizontalScale; 1177 int32_t iVerScale = pTxtRun->iVerticalScale; 1178 bool bSkipSpace = pTxtRun->bSkipSpace; 1179 FX_FORMCHAR formChars[3]; 1180 FX_FLOAT fYBase; 1181 1182 if (bVerticalDoc) { 1183 fX += (rtText.width - fFontSize) / 2.0f; 1184 fYBase = bRTLPiece ? rtText.bottom() : rtText.top; 1185 fY = fYBase; 1186 } else { 1187 if (bRTLPiece) 1188 fX = rtText.right(); 1189 1190 fYBase = rtText.top + (rtText.height - fFontSize) / 2.0f; 1191 fY = fYBase + fAscent; 1192 } 1193 1194 int32_t iCount = 0; 1195 int32_t iNext = 0; 1196 FX_WCHAR wPrev = 0xFEFF; 1197 FX_WCHAR wNext = 0xFEFF; 1198 FX_WCHAR wForm = 0xFEFF; 1199 FX_WCHAR wLast = 0xFEFF; 1200 bool bShadda = false; 1201 bool bLam = false; 1202 for (int32_t i = 0; i <= iLength; i++) { 1203 int32_t iWidth; 1204 FX_WCHAR wch; 1205 if (pAccess) { 1206 wch = pAccess->GetChar(pIdentity, i); 1207 iWidth = pAccess->GetWidth(pIdentity, i); 1208 } else { 1209 wch = *pStr++; 1210 iWidth = *pWidths++; 1211 } 1212 1213 uint32_t dwProps = FX_GetUnicodeProperties(wch); 1214 FX_CHARTYPE chartype = GetCharTypeFromProp(dwProps); 1215 if (chartype == FX_CHARTYPE_ArabicAlef && iWidth == 0) { 1216 wPrev = 0xFEFF; 1217 wLast = wch; 1218 continue; 1219 } 1220 1221 if (chartype >= FX_CHARTYPE_ArabicAlef) { 1222 if (i < iLength) { 1223 if (pAccess) { 1224 iNext = i + 1; 1225 while (iNext <= iLength) { 1226 wNext = pAccess->GetChar(pIdentity, iNext); 1227 dwProps = FX_GetUnicodeProperties(wNext); 1228 if ((dwProps & FX_CHARTYPEBITSMASK) != FX_CHARTYPE_Combination) 1229 break; 1230 1231 iNext++; 1232 } 1233 if (iNext > iLength) 1234 wNext = 0xFEFF; 1235 } else { 1236 int32_t j = -1; 1237 do { 1238 j++; 1239 if (i + j >= iLength) 1240 break; 1241 1242 wNext = pStr[j]; 1243 dwProps = FX_GetUnicodeProperties(wNext); 1244 } while ((dwProps & FX_CHARTYPEBITSMASK) == FX_CHARTYPE_Combination); 1245 if (i + j >= iLength) 1246 wNext = 0xFEFF; 1247 } 1248 } else { 1249 wNext = 0xFEFF; 1250 } 1251 1252 wForm = pdfium::arabic::GetFormChar(wch, wPrev, wNext); 1253 bLam = (wPrev == 0x0644 && wch == 0x0644 && wNext == 0x0647); 1254 } else if (chartype == FX_CHARTYPE_Combination) { 1255 wForm = wch; 1256 if (wch >= 0x064C && wch <= 0x0651) { 1257 if (bShadda) { 1258 wForm = 0xFEFF; 1259 bShadda = false; 1260 } else { 1261 wNext = 0xFEFF; 1262 if (pAccess) { 1263 iNext = i + 1; 1264 if (iNext <= iLength) 1265 wNext = pAccess->GetChar(pIdentity, iNext); 1266 } else { 1267 if (i < iLength) 1268 wNext = *pStr; 1269 } 1270 if (wch == 0x0651) { 1271 if (wNext >= 0x064C && wNext <= 0x0650) { 1272 wForm = FX_GetArabicFromShaddaTable(wNext); 1273 bShadda = true; 1274 } 1275 } else { 1276 if (wNext == 0x0651) { 1277 wForm = FX_GetArabicFromShaddaTable(wch); 1278 bShadda = true; 1279 } 1280 } 1281 } 1282 } else { 1283 bShadda = false; 1284 } 1285 } else if (chartype == FX_CHARTYPE_Numeric) { 1286 wForm = wch; 1287 if (bArabicNumber) 1288 wForm += 0x0630; 1289 } else if (wch == L'.') { 1290 wForm = wch; 1291 if (bArabicNumber) { 1292 wNext = 0xFEFF; 1293 if (pAccess) { 1294 iNext = i + 1; 1295 if (iNext <= iLength) 1296 wNext = pAccess->GetChar(pIdentity, iNext); 1297 } else { 1298 if (i < iLength) 1299 wNext = *pStr; 1300 } 1301 if (wNext >= L'0' && wNext <= L'9') 1302 wForm = 0x066B; 1303 } 1304 } else if (wch == L',') { 1305 wForm = wch; 1306 if (bArabicComma) 1307 wForm = 0x060C; 1308 } else if (bRTLPiece || bVerticalChar) { 1309 wForm = FX_GetMirrorChar(wch, dwProps, bRTLPiece, bVerticalChar); 1310 } else { 1311 wForm = wch; 1312 } 1313 if (chartype != FX_CHARTYPE_Combination) 1314 bShadda = false; 1315 if (chartype < FX_CHARTYPE_ArabicAlef) 1316 bLam = false; 1317 1318 dwProps = FX_GetUnicodeProperties(wForm); 1319 int32_t iCharRotation = iRotation; 1320 if (bVerticalChar && (dwProps & 0x8000) != 0) 1321 iCharRotation++; 1322 1323 iCharRotation %= 4; 1324 bool bEmptyChar = 1325 (chartype >= FX_CHARTYPE_Tab && chartype <= FX_CHARTYPE_Control); 1326 if (wForm == 0xFEFF) 1327 bEmptyChar = true; 1328 1329 int32_t iForms = bLam ? 3 : 1; 1330 iCount += (bEmptyChar && bSkipSpace) ? 0 : iForms; 1331 if (!pCharPos) { 1332 if (iWidth > 0) 1333 wPrev = wch; 1334 wLast = wch; 1335 continue; 1336 } 1337 1338 int32_t iCharWidth = iWidth; 1339 if (iCharWidth < 0) 1340 iCharWidth = -iCharWidth; 1341 1342 iCharWidth /= iFontSize; 1343 formChars[0].wch = wch; 1344 formChars[0].wForm = wForm; 1345 formChars[0].iWidth = iCharWidth; 1346 if (bLam) { 1347 formChars[1].wForm = 0x0651; 1348 iCharWidth = 0; 1349 pFont->GetCharWidth(0x0651, iCharWidth, false); 1350 formChars[1].iWidth = iCharWidth; 1351 formChars[2].wForm = 0x0670; 1352 iCharWidth = 0; 1353 pFont->GetCharWidth(0x0670, iCharWidth, false); 1354 formChars[2].iWidth = iCharWidth; 1355 } 1356 1357 for (int32_t j = 0; j < iForms; j++) { 1358 wForm = (FX_WCHAR)formChars[j].wForm; 1359 iCharWidth = formChars[j].iWidth; 1360 if (j > 0) { 1361 chartype = FX_CHARTYPE_Combination; 1362 wch = wForm; 1363 wLast = (FX_WCHAR)formChars[j - 1].wForm; 1364 } 1365 if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) { 1366 pCharPos->m_GlyphIndex = 1367 bCharCode ? wch : pFont->GetGlyphIndex(wForm, false); 1368 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ 1369 pCharPos->m_ExtGID = pCharPos->m_GlyphIndex; 1370 #endif 1371 pCharPos->m_FontCharWidth = iCharWidth; 1372 if (pWSForms) 1373 *pWSForms += wForm; 1374 } 1375 1376 int32_t iCharHeight; 1377 if (bVerticalDoc) { 1378 iCharHeight = iCharWidth; 1379 iCharWidth = 1000; 1380 } else { 1381 iCharHeight = 1000; 1382 } 1383 1384 fCharWidth = fFontSize * iCharWidth / 1000.0f; 1385 fCharHeight = fFontSize * iCharHeight / 1000.0f; 1386 if (bRTLPiece && chartype != FX_CHARTYPE_Combination) { 1387 if (bVerticalDoc) 1388 fY -= fCharHeight; 1389 else 1390 fX -= fCharWidth; 1391 } 1392 if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) { 1393 pCharPos->m_Origin = CFX_PointF(fX, fY); 1394 if ((dwStyles & FX_TXTLAYOUTSTYLE_CombText) != 0) { 1395 int32_t iFormWidth = iCharWidth; 1396 pFont->GetCharWidth(wForm, iFormWidth, false); 1397 FX_FLOAT fOffset = fFontSize * (iCharWidth - iFormWidth) / 2000.0f; 1398 if (bVerticalDoc) 1399 pCharPos->m_Origin.y += fOffset; 1400 else 1401 pCharPos->m_Origin.x += fOffset; 1402 } 1403 1404 if (chartype == FX_CHARTYPE_Combination) { 1405 CFX_Rect rtBBox; 1406 if (pFont->GetCharBBox(wForm, &rtBBox, false)) { 1407 pCharPos->m_Origin.y = 1408 fYBase + fFontSize - 1409 fFontSize * (FX_FLOAT)rtBBox.height / (FX_FLOAT)iMaxHeight; 1410 } 1411 if (wForm == wch && wLast != 0xFEFF) { 1412 uint32_t dwLastProps = FX_GetUnicodeProperties(wLast); 1413 if ((dwLastProps & FX_CHARTYPEBITSMASK) == 1414 FX_CHARTYPE_Combination) { 1415 CFX_Rect rtBox; 1416 if (pFont->GetCharBBox(wLast, &rtBox, false)) 1417 pCharPos->m_Origin.y -= fFontSize * rtBox.height / iMaxHeight; 1418 } 1419 } 1420 } 1421 CFX_PointF ptOffset; 1422 if (bVerticalChar && (dwProps & 0x00010000) != 0) { 1423 CFX_Rect rtBBox; 1424 if (pFont->GetCharBBox(wForm, &rtBBox, false)) { 1425 ptOffset.x = fFontSize * (850 - rtBBox.right()) / iMaxHeight; 1426 ptOffset.y = fFontSize * (iAscent - rtBBox.top - 150) / iMaxHeight; 1427 } 1428 } 1429 pCharPos->m_Origin.x += ptOffset.x; 1430 pCharPos->m_Origin.y -= ptOffset.y; 1431 } 1432 if (!bRTLPiece && chartype != FX_CHARTYPE_Combination) { 1433 if (bVerticalDoc) 1434 fY += fCharHeight; 1435 else 1436 fX += fCharWidth; 1437 } 1438 1439 if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) { 1440 pCharPos->m_bGlyphAdjust = true; 1441 if (bVerticalDoc) { 1442 if (iCharRotation == 0) { 1443 pCharPos->m_AdjustMatrix[0] = -1; 1444 pCharPos->m_AdjustMatrix[1] = 0; 1445 pCharPos->m_AdjustMatrix[2] = 0; 1446 pCharPos->m_AdjustMatrix[3] = 1; 1447 pCharPos->m_Origin.y += fAscent; 1448 } else if (iCharRotation == 1) { 1449 pCharPos->m_AdjustMatrix[0] = 0; 1450 pCharPos->m_AdjustMatrix[1] = -1; 1451 pCharPos->m_AdjustMatrix[2] = -1; 1452 pCharPos->m_AdjustMatrix[3] = 0; 1453 pCharPos->m_Origin.x -= fDescent; 1454 } else if (iCharRotation == 2) { 1455 pCharPos->m_AdjustMatrix[0] = 1; 1456 pCharPos->m_AdjustMatrix[1] = 0; 1457 pCharPos->m_AdjustMatrix[2] = 0; 1458 pCharPos->m_AdjustMatrix[3] = -1; 1459 pCharPos->m_Origin.x += fCharWidth; 1460 pCharPos->m_Origin.y += fAscent; 1461 } else { 1462 pCharPos->m_AdjustMatrix[0] = 0; 1463 pCharPos->m_AdjustMatrix[1] = 1; 1464 pCharPos->m_AdjustMatrix[2] = 1; 1465 pCharPos->m_AdjustMatrix[3] = 0; 1466 pCharPos->m_Origin.x += fAscent; 1467 } 1468 } else { 1469 if (iCharRotation == 0) { 1470 pCharPos->m_AdjustMatrix[0] = -1; 1471 pCharPos->m_AdjustMatrix[1] = 0; 1472 pCharPos->m_AdjustMatrix[2] = 0; 1473 pCharPos->m_AdjustMatrix[3] = 1; 1474 } else if (iCharRotation == 1) { 1475 pCharPos->m_AdjustMatrix[0] = 0; 1476 pCharPos->m_AdjustMatrix[1] = -1; 1477 pCharPos->m_AdjustMatrix[2] = -1; 1478 pCharPos->m_AdjustMatrix[3] = 0; 1479 pCharPos->m_Origin.x -= fDescent; 1480 pCharPos->m_Origin.y -= fAscent + fDescent; 1481 } else if (iCharRotation == 2) { 1482 pCharPos->m_AdjustMatrix[0] = 1; 1483 pCharPos->m_AdjustMatrix[1] = 0; 1484 pCharPos->m_AdjustMatrix[2] = 0; 1485 pCharPos->m_AdjustMatrix[3] = -1; 1486 pCharPos->m_Origin.x += fCharWidth; 1487 pCharPos->m_Origin.y -= fAscent; 1488 } else { 1489 pCharPos->m_AdjustMatrix[0] = 0; 1490 pCharPos->m_AdjustMatrix[1] = 1; 1491 pCharPos->m_AdjustMatrix[2] = 1; 1492 pCharPos->m_AdjustMatrix[3] = 0; 1493 pCharPos->m_Origin.x += fAscent; 1494 } 1495 } 1496 if (iHorScale != 100 || iVerScale != 100) { 1497 pCharPos->m_AdjustMatrix[0] = 1498 pCharPos->m_AdjustMatrix[0] * iHorScale / 100.0f; 1499 pCharPos->m_AdjustMatrix[1] = 1500 pCharPos->m_AdjustMatrix[1] * iHorScale / 100.0f; 1501 pCharPos->m_AdjustMatrix[2] = 1502 pCharPos->m_AdjustMatrix[2] * iVerScale / 100.0f; 1503 pCharPos->m_AdjustMatrix[3] = 1504 pCharPos->m_AdjustMatrix[3] * iVerScale / 100.0f; 1505 } 1506 pCharPos++; 1507 } 1508 } 1509 if (iWidth > 0) 1510 wPrev = static_cast<FX_WCHAR>(formChars[0].wch); 1511 wLast = wch; 1512 } 1513 return iCount; 1514 } 1515 1516 std::vector<CFX_RectF> CFX_TxtBreak::GetCharRects(const FX_TXTRUN* pTxtRun, 1517 bool bCharBBox) const { 1518 if (!pTxtRun || pTxtRun->iLength < 1) 1519 return std::vector<CFX_RectF>(); 1520 1521 IFX_TxtAccess* pAccess = pTxtRun->pAccess; 1522 const FDE_TEXTEDITPIECE* pIdentity = pTxtRun->pIdentity; 1523 const FX_WCHAR* pStr = pTxtRun->wsStr.c_str(); 1524 int32_t* pWidths = pTxtRun->pWidths; 1525 int32_t iLength = pTxtRun->iLength; 1526 CFX_RectF rect(*pTxtRun->pRect); 1527 FX_FLOAT fFontSize = pTxtRun->fFontSize; 1528 int32_t iFontSize = FXSYS_round(fFontSize * 20.0f); 1529 FX_FLOAT fScale = fFontSize / 1000.0f; 1530 CFX_RetainPtr<CFGAS_GEFont> pFont = pTxtRun->pFont; 1531 if (!pFont) 1532 bCharBBox = false; 1533 1534 CFX_Rect bbox; 1535 if (bCharBBox) 1536 bCharBBox = pFont->GetBBox(&bbox); 1537 1538 FX_FLOAT fLeft = std::max(0.0f, bbox.left * fScale); 1539 FX_FLOAT fHeight = FXSYS_fabs(bbox.height * fScale); 1540 bool bRTLPiece = !!(pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_OddBidiLevel); 1541 bool bVertical = !!(pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_VerticalLayout); 1542 bool bSingleLine = !!(pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_SingleLine); 1543 bool bCombText = !!(pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_CombText); 1544 FX_WCHAR wch; 1545 FX_WCHAR wLineBreakChar = pTxtRun->wLineBreakChar; 1546 int32_t iCharSize; 1547 FX_FLOAT fCharSize; 1548 FX_FLOAT fStart; 1549 if (bVertical) 1550 fStart = bRTLPiece ? rect.bottom() : rect.top; 1551 else 1552 fStart = bRTLPiece ? rect.right() : rect.left; 1553 1554 std::vector<CFX_RectF> rtArray(iLength); 1555 for (int32_t i = 0; i < iLength; i++) { 1556 if (pAccess) { 1557 wch = pAccess->GetChar(pIdentity, i); 1558 iCharSize = pAccess->GetWidth(pIdentity, i); 1559 } else { 1560 wch = *pStr++; 1561 iCharSize = *pWidths++; 1562 } 1563 fCharSize = static_cast<FX_FLOAT>(iCharSize) / 20000.0f; 1564 bool bRet = (!bSingleLine && FX_IsCtrlCode(wch)); 1565 if (!(wch == L'\v' || wch == L'\f' || wch == 0x2028 || wch == 0x2029 || 1566 (wLineBreakChar != 0xFEFF && wch == wLineBreakChar))) { 1567 bRet = false; 1568 } 1569 if (bRet) { 1570 iCharSize = iFontSize * 500; 1571 fCharSize = fFontSize / 2.0f; 1572 } 1573 if (bVertical) { 1574 rect.top = fStart; 1575 if (bRTLPiece) { 1576 rect.top -= fCharSize; 1577 fStart -= fCharSize; 1578 } else { 1579 fStart += fCharSize; 1580 } 1581 rect.height = fCharSize; 1582 } else { 1583 rect.left = fStart; 1584 if (bRTLPiece) { 1585 rect.left -= fCharSize; 1586 fStart -= fCharSize; 1587 } else { 1588 fStart += fCharSize; 1589 } 1590 rect.width = fCharSize; 1591 } 1592 1593 if (bCharBBox && !bRet) { 1594 int32_t iCharWidth = 1000; 1595 pFont->GetCharWidth(wch, iCharWidth, false); 1596 FX_FLOAT fRTLeft = 0, fCharWidth = 0; 1597 if (iCharWidth > 0) { 1598 fCharWidth = iCharWidth * fScale; 1599 fRTLeft = fLeft; 1600 if (bCombText) 1601 fRTLeft = (rect.width - fCharWidth) / 2.0f; 1602 } 1603 CFX_RectF rtBBoxF; 1604 if (bVertical) { 1605 rtBBoxF.top = rect.left + fRTLeft; 1606 rtBBoxF.left = rect.top + (rect.height - fHeight) / 2.0f; 1607 rtBBoxF.height = fCharWidth; 1608 rtBBoxF.width = fHeight; 1609 rtBBoxF.left = std::max(rtBBoxF.left, 0.0f); 1610 } else { 1611 rtBBoxF.left = rect.left + fRTLeft; 1612 rtBBoxF.top = rect.top + (rect.height - fHeight) / 2.0f; 1613 rtBBoxF.width = fCharWidth; 1614 rtBBoxF.height = fHeight; 1615 rtBBoxF.top = std::max(rtBBoxF.top, 0.0f); 1616 } 1617 rtArray[i] = rtBBoxF; 1618 continue; 1619 } 1620 rtArray[i] = rect; 1621 } 1622 return rtArray; 1623 } 1624 1625 FX_TXTRUN::FX_TXTRUN() 1626 : pAccess(nullptr), 1627 pIdentity(nullptr), 1628 pWidths(nullptr), 1629 iLength(0), 1630 pFont(nullptr), 1631 fFontSize(12), 1632 dwStyles(0), 1633 iHorizontalScale(100), 1634 iVerticalScale(100), 1635 iCharRotation(0), 1636 dwCharStyles(0), 1637 pRect(nullptr), 1638 wLineBreakChar(L'\n'), 1639 bSkipSpace(true) {} 1640 1641 FX_TXTRUN::~FX_TXTRUN() {} 1642 1643 FX_TXTRUN::FX_TXTRUN(const FX_TXTRUN& other) = default; 1644 1645 CFX_TxtPiece::CFX_TxtPiece() 1646 : m_dwStatus(FX_TXTBREAK_PieceBreak), 1647 m_iStartPos(0), 1648 m_iWidth(-1), 1649 m_iStartChar(0), 1650 m_iChars(0), 1651 m_iBidiLevel(0), 1652 m_iBidiPos(0), 1653 m_iHorizontalScale(100), 1654 m_iVerticalScale(100), 1655 m_dwCharStyles(0), 1656 m_pChars(nullptr), 1657 m_pUserData(nullptr) {} 1658 1659 CFX_TxtLine::CFX_TxtLine(int32_t iBlockSize) 1660 : m_pLineChars(new std::vector<CFX_TxtChar>), 1661 m_pLinePieces(new CFX_TxtPieceArray(16)), 1662 m_iStart(0), 1663 m_iWidth(0), 1664 m_iArabicChars(0) {} 1665 1666 CFX_TxtLine::~CFX_TxtLine() { 1667 RemoveAll(); 1668 } 1669
