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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #ifndef XFA_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ | 7 #ifndef XFA_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ |
8 #define XFA_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ | 8 #define XFA_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ |
9 | 9 |
10 #include "core/fxcrt/include/fx_ucd.h" | 10 #include "core/fxcrt/include/fx_ucd.h" |
11 #include "core/fxge/include/fx_ge.h" | 11 #include "core/fxge/include/fx_ge.h" |
12 #include "xfa/fgas/crt/fgas_utils.h" | 12 #include "xfa/fgas/crt/fgas_utils.h" |
13 #include "xfa/fgas/layout/fgas_unicode.h" | 13 #include "xfa/fgas/layout/fgas_unicode.h" |
14 | 14 |
15 class IFX_Font; | 15 class CFX_ArabicChar; |
16 class CFX_Char; | 16 class CFX_Char; |
17 class IFX_TxtAccess; | |
18 class CFX_TxtChar; | 17 class CFX_TxtChar; |
19 class CFX_TxtPiece; | 18 class CFX_TxtPiece; |
20 class IFX_TxtBreak; | 19 class IFX_Font; |
| 20 class IFX_TxtAccess; |
21 | 21 |
22 #define FX_TXTBREAKPOLICY_None 0x00 | 22 #define FX_TXTBREAKPOLICY_None 0x00 |
23 #define FX_TXTBREAKPOLICY_Pagination 0x01 | 23 #define FX_TXTBREAKPOLICY_Pagination 0x01 |
24 #define FX_TXTBREAKPOLICY_SpaceBreak 0x02 | 24 #define FX_TXTBREAKPOLICY_SpaceBreak 0x02 |
25 #define FX_TXTBREAKPOLICY_NumberBreak 0x04 | 25 #define FX_TXTBREAKPOLICY_NumberBreak 0x04 |
26 #define FX_TXTBREAK_None 0x00 | 26 #define FX_TXTBREAK_None 0x00 |
27 #define FX_TXTBREAK_PieceBreak 0x01 | 27 #define FX_TXTBREAK_PieceBreak 0x01 |
28 #define FX_TXTBREAK_LineBreak 0x02 | 28 #define FX_TXTBREAK_LineBreak 0x02 |
29 #define FX_TXTBREAK_ParagraphBreak 0x03 | 29 #define FX_TXTBREAK_ParagraphBreak 0x03 |
30 #define FX_TXTBREAK_PageBreak 0x04 | 30 #define FX_TXTBREAK_PageBreak 0x04 |
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170 int32_t m_iBidiLevel; | 170 int32_t m_iBidiLevel; |
171 int32_t m_iBidiPos; | 171 int32_t m_iBidiPos; |
172 int32_t m_iHorizontalScale; | 172 int32_t m_iHorizontalScale; |
173 int32_t m_iVerticalScale; | 173 int32_t m_iVerticalScale; |
174 uint32_t m_dwCharStyles; | 174 uint32_t m_dwCharStyles; |
175 CFX_TxtCharArray* m_pChars; | 175 CFX_TxtCharArray* m_pChars; |
176 void* m_pUserData; | 176 void* m_pUserData; |
177 }; | 177 }; |
178 typedef CFX_BaseArrayTemplate<CFX_TxtPiece> CFX_TxtPieceArray; | 178 typedef CFX_BaseArrayTemplate<CFX_TxtPiece> CFX_TxtPieceArray; |
179 | 179 |
180 class IFX_TxtBreak { | 180 class CFX_TxtLine { |
181 public: | 181 public: |
182 static IFX_TxtBreak* Create(uint32_t dwPolicies); | 182 CFX_TxtLine(int32_t iBlockSize) |
183 virtual ~IFX_TxtBreak() {} | 183 : m_iStart(0), m_iWidth(0), m_iArabicChars(0) { |
184 virtual void Release() = 0; | 184 m_pLineChars = new CFX_TxtCharArray; |
185 virtual void SetLineWidth(FX_FLOAT fLineWidth) = 0; | 185 m_pLinePieces = new CFX_TxtPieceArray(16); |
186 virtual void SetLinePos(FX_FLOAT fLinePos) = 0; | 186 } |
187 virtual uint32_t GetLayoutStyles() const = 0; | 187 ~CFX_TxtLine() { |
188 virtual void SetLayoutStyles(uint32_t dwLayoutStyles) = 0; | 188 RemoveAll(); |
189 virtual void SetFont(IFX_Font* pFont) = 0; | 189 delete m_pLineChars; |
190 virtual void SetFontSize(FX_FLOAT fFontSize) = 0; | 190 delete m_pLinePieces; |
191 virtual void SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant) = 0; | 191 } |
192 virtual void SetDefaultChar(FX_WCHAR wch) = 0; | 192 int32_t CountChars() const { return m_pLineChars->GetSize(); } |
193 virtual void SetParagraphBreakChar(FX_WCHAR wch) = 0; | 193 CFX_TxtChar* GetCharPtr(int32_t index) const { |
194 virtual void SetLineBreakTolerance(FX_FLOAT fTolerance) = 0; | 194 FXSYS_assert(index > -1 && index < m_pLineChars->GetSize()); |
195 virtual void SetHorizontalScale(int32_t iScale) = 0; | 195 return m_pLineChars->GetDataPtr(index); |
196 virtual void SetVerticalScale(int32_t iScale) = 0; | 196 } |
197 virtual void SetCharRotation(int32_t iCharRotation) = 0; | 197 int32_t CountPieces() const { return m_pLinePieces->GetSize(); } |
198 virtual void SetCharSpace(FX_FLOAT fCharSpace) = 0; | 198 CFX_TxtPiece* GetPiecePtr(int32_t index) const { |
199 virtual void SetAlignment(int32_t iAlignment) = 0; | 199 FXSYS_assert(index > -1 && index < m_pLinePieces->GetSize()); |
200 virtual uint32_t GetContextCharStyles() const = 0; | 200 return m_pLinePieces->GetPtrAt(index); |
201 virtual void SetContextCharStyles(uint32_t dwCharStyles) = 0; | 201 } |
202 virtual void SetCombWidth(FX_FLOAT fCombWidth) = 0; | 202 void GetString(CFX_WideString& wsStr) const { |
203 virtual void SetUserData(void* pUserData) = 0; | 203 int32_t iCount = m_pLineChars->GetSize(); |
204 virtual uint32_t AppendChar(FX_WCHAR wch) = 0; | 204 FX_WCHAR* pBuf = wsStr.GetBuffer(iCount); |
205 virtual uint32_t EndBreak(uint32_t dwStatus = FX_TXTBREAK_PieceBreak) = 0; | 205 CFX_Char* pChar; |
206 virtual int32_t CountBreakChars() const = 0; | 206 for (int32_t i = 0; i < iCount; i++) { |
207 virtual int32_t CountBreakPieces() const = 0; | 207 pChar = m_pLineChars->GetDataPtr(i); |
208 virtual const CFX_TxtPiece* GetBreakPiece(int32_t index) const = 0; | 208 *pBuf++ = (FX_WCHAR)pChar->m_wCharCode; |
209 virtual void ClearBreakPieces() = 0; | 209 } |
210 virtual void Reset() = 0; | 210 wsStr.ReleaseBuffer(iCount); |
211 virtual int32_t GetDisplayPos( | 211 } |
212 const FX_TXTRUN* pTxtRun, | 212 void RemoveAll(FX_BOOL bLeaveMemory = FALSE) { |
213 FXTEXT_CHARPOS* pCharPos, | 213 m_pLineChars->RemoveAll(); |
214 FX_BOOL bCharCode = FALSE, | 214 m_pLinePieces->RemoveAll(bLeaveMemory); |
215 CFX_WideString* pWSForms = NULL, | 215 m_iWidth = 0; |
216 FX_AdjustCharDisplayPos pAdjustPos = NULL) const = 0; | 216 m_iArabicChars = 0; |
217 virtual int32_t GetCharRects(const FX_TXTRUN* pTxtRun, | 217 } |
218 CFX_RectFArray& rtArray, | 218 CFX_TxtCharArray* m_pLineChars; |
219 FX_BOOL bCharBBox = FALSE) const = 0; | 219 CFX_TxtPieceArray* m_pLinePieces; |
| 220 int32_t m_iStart; |
| 221 int32_t m_iWidth; |
| 222 int32_t m_iArabicChars; |
| 223 }; |
| 224 |
| 225 class CFX_TxtBreak { |
| 226 public: |
| 227 CFX_TxtBreak(uint32_t dwPolicies); |
| 228 ~CFX_TxtBreak(); |
| 229 |
| 230 void Release() { delete this; } |
| 231 void SetLineWidth(FX_FLOAT fLineWidth); |
| 232 void SetLinePos(FX_FLOAT fLinePos); |
| 233 uint32_t GetLayoutStyles() const { return m_dwLayoutStyles; } |
| 234 void SetLayoutStyles(uint32_t dwLayoutStyles); |
| 235 void SetFont(IFX_Font* pFont); |
| 236 void SetFontSize(FX_FLOAT fFontSize); |
| 237 void SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant); |
| 238 void SetDefaultChar(FX_WCHAR wch); |
| 239 void SetParagraphBreakChar(FX_WCHAR wch); |
| 240 void SetLineBreakTolerance(FX_FLOAT fTolerance); |
| 241 void SetHorizontalScale(int32_t iScale); |
| 242 void SetVerticalScale(int32_t iScale); |
| 243 void SetCharRotation(int32_t iCharRotation); |
| 244 void SetCharSpace(FX_FLOAT fCharSpace); |
| 245 void SetAlignment(int32_t iAlignment); |
| 246 uint32_t GetContextCharStyles() const; |
| 247 void SetContextCharStyles(uint32_t dwCharStyles); |
| 248 void SetCombWidth(FX_FLOAT fCombWidth); |
| 249 void SetUserData(void* pUserData); |
| 250 uint32_t AppendChar(FX_WCHAR wch); |
| 251 uint32_t EndBreak(uint32_t dwStatus = FX_TXTBREAK_PieceBreak); |
| 252 int32_t CountBreakChars() const; |
| 253 int32_t CountBreakPieces() const; |
| 254 const CFX_TxtPiece* GetBreakPiece(int32_t index) const; |
| 255 void ClearBreakPieces(); |
| 256 void Reset(); |
| 257 int32_t GetDisplayPos(const FX_TXTRUN* pTxtRun, |
| 258 FXTEXT_CHARPOS* pCharPos, |
| 259 FX_BOOL bCharCode = FALSE, |
| 260 CFX_WideString* pWSForms = NULL, |
| 261 FX_AdjustCharDisplayPos pAdjustPos = NULL) const; |
| 262 int32_t GetCharRects(const FX_TXTRUN* pTxtRun, |
| 263 CFX_RectFArray& rtArray, |
| 264 FX_BOOL bCharBBox = FALSE) const; |
| 265 void AppendChar_PageLoad(CFX_Char* pCurChar, uint32_t dwProps); |
| 266 uint32_t AppendChar_Combination(CFX_Char* pCurChar, int32_t iRotation); |
| 267 uint32_t AppendChar_Tab(CFX_Char* pCurChar, int32_t iRotation); |
| 268 uint32_t AppendChar_Control(CFX_Char* pCurChar, int32_t iRotation); |
| 269 uint32_t AppendChar_Arabic(CFX_Char* pCurChar, int32_t iRotation); |
| 270 uint32_t AppendChar_Others(CFX_Char* pCurChar, int32_t iRotation); |
| 271 |
| 272 protected: |
| 273 uint32_t m_dwPolicies; |
| 274 FX_BOOL m_bPagination; |
| 275 CFX_ArabicChar* m_pArabicChar; |
| 276 int32_t m_iLineWidth; |
| 277 uint32_t m_dwLayoutStyles; |
| 278 FX_BOOL m_bVertical; |
| 279 FX_BOOL m_bArabicContext; |
| 280 FX_BOOL m_bArabicShapes; |
| 281 FX_BOOL m_bRTL; |
| 282 FX_BOOL m_bSingleLine; |
| 283 FX_BOOL m_bCombText; |
| 284 int32_t m_iArabicContext; |
| 285 int32_t m_iCurArabicContext; |
| 286 IFX_Font* m_pFont; |
| 287 int32_t m_iFontSize; |
| 288 FX_BOOL m_bEquidistant; |
| 289 int32_t m_iTabWidth; |
| 290 FX_WCHAR m_wDefChar; |
| 291 FX_WCHAR m_wParagBreakChar; |
| 292 int32_t m_iDefChar; |
| 293 int32_t m_iLineRotation; |
| 294 int32_t m_iCharRotation; |
| 295 int32_t m_iRotation; |
| 296 int32_t m_iAlignment; |
| 297 uint32_t m_dwContextCharStyles; |
| 298 int32_t m_iCombWidth; |
| 299 void* m_pUserData; |
| 300 uint32_t m_dwCharType; |
| 301 FX_BOOL m_bCurRTL; |
| 302 int32_t m_iCurAlignment; |
| 303 FX_BOOL m_bArabicNumber; |
| 304 FX_BOOL m_bArabicComma; |
| 305 CFX_TxtLine* m_pTxtLine1; |
| 306 CFX_TxtLine* m_pTxtLine2; |
| 307 CFX_TxtLine* m_pCurLine; |
| 308 int32_t m_iReady; |
| 309 int32_t m_iTolerance; |
| 310 int32_t m_iHorScale; |
| 311 int32_t m_iVerScale; |
| 312 int32_t m_iCharSpace; |
| 313 void SetBreakStatus(); |
| 314 int32_t GetLineRotation(uint32_t dwStyles) const; |
| 315 CFX_TxtChar* GetLastChar(int32_t index, FX_BOOL bOmitChar = TRUE) const; |
| 316 CFX_TxtLine* GetTxtLine(FX_BOOL bReady) const; |
| 317 CFX_TxtPieceArray* GetTxtPieces(FX_BOOL bReady) const; |
| 318 uint32_t GetUnifiedCharType(uint32_t dwType) const; |
| 319 void ResetArabicContext(); |
| 320 void ResetContextCharStyles(); |
| 321 void EndBreak_UpdateArabicShapes(); |
| 322 FX_BOOL EndBreak_SplitLine(CFX_TxtLine* pNextLine, |
| 323 FX_BOOL bAllChars, |
| 324 uint32_t dwStatus); |
| 325 void EndBreak_BidiLine(CFX_TPOArray& tpos, uint32_t dwStatus); |
| 326 void EndBreak_Alignment(CFX_TPOArray& tpos, |
| 327 FX_BOOL bAllChars, |
| 328 uint32_t dwStatus); |
| 329 int32_t GetBreakPos(CFX_TxtCharArray& ca, |
| 330 int32_t& iEndPos, |
| 331 FX_BOOL bAllChars = FALSE, |
| 332 FX_BOOL bOnlyBrk = FALSE); |
| 333 void SplitTextLine(CFX_TxtLine* pCurLine, |
| 334 CFX_TxtLine* pNextLine, |
| 335 FX_BOOL bAllChars = FALSE); |
220 }; | 336 }; |
221 | 337 |
222 #endif // XFA_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ | 338 #endif // XFA_FGAS_LAYOUT_FGAS_TEXTBREAK_H_ |
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