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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 #include "xfa/fde/cfde_txtedtbuf.h" | 7 #include "xfa/fde/cfde_txtedtbuf.h" |
| 8 | 8 |
| 9 #include "xfa/fgas/crt/fgas_memory.h" | 9 #include "xfa/fgas/crt/fgas_memory.h" |
| 10 | 10 |
| 11 namespace { | 11 namespace { |
| 12 | 12 |
| 13 const int kDefaultChunkSize = 1024; | 13 const int kDefaultChunkSize = 1024; |
| 14 const int kDefaultChunkCount = 2; | 14 const int kDefaultChunkCount = 2; |
| 15 | 15 |
| 16 } // namespace | 16 } // namespace |
| 17 | 17 |
| 18 CFDE_TxtEdtBuf::CFDE_TxtEdtBuf() | 18 CFDE_TxtEdtBuf::CFDE_TxtEdtBuf() |
| 19 : m_nChunkSize(kDefaultChunkSize), m_nTotal(0), m_bChanged(FALSE) { | 19 : m_nChunkSize(kDefaultChunkSize), m_nTotal(0), m_bChanged(false) { |
| 20 ResetChunkBuffer(kDefaultChunkCount, m_nChunkSize); | 20 ResetChunkBuffer(kDefaultChunkCount, m_nChunkSize); |
| 21 } | 21 } |
| 22 | 22 |
| 23 CFDE_TxtEdtBuf::~CFDE_TxtEdtBuf() { | 23 CFDE_TxtEdtBuf::~CFDE_TxtEdtBuf() { |
| 24 Clear(TRUE); | 24 Clear(true); |
| 25 m_Chunks.RemoveAll(); | 25 m_Chunks.RemoveAll(); |
| 26 } | 26 } |
| 27 | 27 |
| 28 int32_t CFDE_TxtEdtBuf::GetChunkSize() const { | 28 int32_t CFDE_TxtEdtBuf::GetChunkSize() const { |
| 29 return m_nChunkSize; | 29 return m_nChunkSize; |
| 30 } | 30 } |
| 31 | 31 |
| 32 int32_t CFDE_TxtEdtBuf::GetTextLength() const { | 32 int32_t CFDE_TxtEdtBuf::GetTextLength() const { |
| 33 return m_nTotal; | 33 return m_nTotal; |
| 34 } | 34 } |
| 35 | 35 |
| 36 void CFDE_TxtEdtBuf::SetText(const CFX_WideString& wsText) { | 36 void CFDE_TxtEdtBuf::SetText(const CFX_WideString& wsText) { |
| 37 ASSERT(!wsText.IsEmpty()); | 37 ASSERT(!wsText.IsEmpty()); |
| 38 Clear(FALSE); | 38 Clear(false); |
| 39 int32_t nTextLength = wsText.GetLength(); | 39 int32_t nTextLength = wsText.GetLength(); |
| 40 int32_t nNeedCount = | 40 int32_t nNeedCount = |
| 41 ((nTextLength - 1) / m_nChunkSize + 1) - m_Chunks.GetSize(); | 41 ((nTextLength - 1) / m_nChunkSize + 1) - m_Chunks.GetSize(); |
| 42 int32_t i = 0; | 42 int32_t i = 0; |
| 43 for (i = 0; i < nNeedCount; i++) { | 43 for (i = 0; i < nNeedCount; i++) { |
| 44 FDE_CHUNKHEADER* lpChunk = | 44 FDE_CHUNKHEADER* lpChunk = |
| 45 static_cast<FDE_CHUNKHEADER*>(m_pAllocator->Alloc( | 45 static_cast<FDE_CHUNKHEADER*>(m_pAllocator->Alloc( |
| 46 sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR))); | 46 sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR))); |
| 47 lpChunk->nUsed = 0; | 47 lpChunk->nUsed = 0; |
| 48 m_Chunks.Add(lpChunk); | 48 m_Chunks.Add(lpChunk); |
| 49 } | 49 } |
| 50 int32_t nTotalCount = m_Chunks.GetSize(); | 50 int32_t nTotalCount = m_Chunks.GetSize(); |
| 51 const FX_WCHAR* lpSrcBuf = wsText.c_str(); | 51 const FX_WCHAR* lpSrcBuf = wsText.c_str(); |
| 52 int32_t nLeave = nTextLength; | 52 int32_t nLeave = nTextLength; |
| 53 int32_t nCopyedLength = m_nChunkSize; | 53 int32_t nCopyedLength = m_nChunkSize; |
| 54 for (i = 0; i < nTotalCount && nLeave > 0; i++) { | 54 for (i = 0; i < nTotalCount && nLeave > 0; i++) { |
| 55 if (nLeave < nCopyedLength) { | 55 if (nLeave < nCopyedLength) { |
| 56 nCopyedLength = nLeave; | 56 nCopyedLength = nLeave; |
| 57 } | 57 } |
| 58 FDE_CHUNKHEADER* lpChunk = m_Chunks[i]; | 58 FDE_CHUNKHEADER* lpChunk = m_Chunks[i]; |
| 59 FXSYS_memcpy(lpChunk->wChars, lpSrcBuf, nCopyedLength * sizeof(FX_WCHAR)); | 59 FXSYS_memcpy(lpChunk->wChars, lpSrcBuf, nCopyedLength * sizeof(FX_WCHAR)); |
| 60 nLeave -= nCopyedLength; | 60 nLeave -= nCopyedLength; |
| 61 lpSrcBuf += nCopyedLength; | 61 lpSrcBuf += nCopyedLength; |
| 62 lpChunk->nUsed = nCopyedLength; | 62 lpChunk->nUsed = nCopyedLength; |
| 63 } | 63 } |
| 64 m_nTotal = nTextLength; | 64 m_nTotal = nTextLength; |
| 65 m_bChanged = TRUE; | 65 m_bChanged = true; |
| 66 } | 66 } |
| 67 | 67 |
| 68 void CFDE_TxtEdtBuf::GetText(CFX_WideString& wsText) const { | 68 void CFDE_TxtEdtBuf::GetText(CFX_WideString& wsText) const { |
| 69 GetRange(wsText, 0, m_nTotal); | 69 GetRange(wsText, 0, m_nTotal); |
| 70 } | 70 } |
| 71 | 71 |
| 72 FX_WCHAR CFDE_TxtEdtBuf::GetCharByIndex(int32_t nIndex) const { | 72 FX_WCHAR CFDE_TxtEdtBuf::GetCharByIndex(int32_t nIndex) const { |
| 73 ASSERT(nIndex >= 0 && nIndex < GetTextLength()); | 73 ASSERT(nIndex >= 0 && nIndex < GetTextLength()); |
| 74 FDE_CHUNKHEADER* pChunkHeader = nullptr; | 74 FDE_CHUNKHEADER* pChunkHeader = nullptr; |
| 75 int32_t nTotal = 0; | 75 int32_t nTotal = 0; |
| (...skipping 82 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 158 ASSERT(lpChunk); | 158 ASSERT(lpChunk); |
| 159 int32_t nCopy = std::min(nLengthTemp, m_nChunkSize); | 159 int32_t nCopy = std::min(nLengthTemp, m_nChunkSize); |
| 160 FXSYS_memcpy(lpChunk->wChars, lpText, nCopy * sizeof(FX_WCHAR)); | 160 FXSYS_memcpy(lpChunk->wChars, lpText, nCopy * sizeof(FX_WCHAR)); |
| 161 lpText += nCopy; | 161 lpText += nCopy; |
| 162 nLengthTemp -= nCopy; | 162 nLengthTemp -= nCopy; |
| 163 lpChunk->nUsed = nCopy; | 163 lpChunk->nUsed = nCopy; |
| 164 m_Chunks.InsertAt(cp.nChunkIndex, lpChunk); | 164 m_Chunks.InsertAt(cp.nChunkIndex, lpChunk); |
| 165 cp.nChunkIndex++; | 165 cp.nChunkIndex++; |
| 166 } | 166 } |
| 167 m_nTotal += nLength; | 167 m_nTotal += nLength; |
| 168 m_bChanged = TRUE; | 168 m_bChanged = true; |
| 169 } | 169 } |
| 170 | 170 |
| 171 void CFDE_TxtEdtBuf::Delete(int32_t nIndex, int32_t nLength) { | 171 void CFDE_TxtEdtBuf::Delete(int32_t nIndex, int32_t nLength) { |
| 172 ASSERT(nLength > 0 && nIndex >= 0 && nIndex + nLength <= m_nTotal); | 172 ASSERT(nLength > 0 && nIndex >= 0 && nIndex + nLength <= m_nTotal); |
| 173 FDE_CHUNKPLACE cpEnd; | 173 FDE_CHUNKPLACE cpEnd; |
| 174 Index2CP(nIndex + nLength - 1, cpEnd); | 174 Index2CP(nIndex + nLength - 1, cpEnd); |
| 175 m_nTotal -= nLength; | 175 m_nTotal -= nLength; |
| 176 FDE_CHUNKHEADER* lpChunk = m_Chunks[cpEnd.nChunkIndex]; | 176 FDE_CHUNKHEADER* lpChunk = m_Chunks[cpEnd.nChunkIndex]; |
| 177 int32_t nFirstPart = cpEnd.nCharIndex + 1; | 177 int32_t nFirstPart = cpEnd.nCharIndex + 1; |
| 178 int32_t nMovePart = lpChunk->nUsed - nFirstPart; | 178 int32_t nMovePart = lpChunk->nUsed - nFirstPart; |
| (...skipping 10 matching lines...) Expand all Loading... |
| 189 int32_t nDeleted = std::min(lpChunk->nUsed, nLength); | 189 int32_t nDeleted = std::min(lpChunk->nUsed, nLength); |
| 190 lpChunk->nUsed -= nDeleted; | 190 lpChunk->nUsed -= nDeleted; |
| 191 if (lpChunk->nUsed == 0) { | 191 if (lpChunk->nUsed == 0) { |
| 192 m_pAllocator->Free(lpChunk); | 192 m_pAllocator->Free(lpChunk); |
| 193 m_Chunks.RemoveAt(cpEnd.nChunkIndex); | 193 m_Chunks.RemoveAt(cpEnd.nChunkIndex); |
| 194 lpChunk = nullptr; | 194 lpChunk = nullptr; |
| 195 } | 195 } |
| 196 nLength -= nDeleted; | 196 nLength -= nDeleted; |
| 197 cpEnd.nChunkIndex--; | 197 cpEnd.nChunkIndex--; |
| 198 } | 198 } |
| 199 m_bChanged = TRUE; | 199 m_bChanged = true; |
| 200 } | 200 } |
| 201 | 201 |
| 202 void CFDE_TxtEdtBuf::Clear(FX_BOOL bRelease) { | 202 void CFDE_TxtEdtBuf::Clear(bool bRelease) { |
| 203 int32_t i = 0; | 203 int32_t i = 0; |
| 204 int32_t nCount = m_Chunks.GetSize(); | 204 int32_t nCount = m_Chunks.GetSize(); |
| 205 if (bRelease) { | 205 if (bRelease) { |
| 206 while (i < nCount) { | 206 while (i < nCount) { |
| 207 m_pAllocator->Free(m_Chunks[i++]); | 207 m_pAllocator->Free(m_Chunks[i++]); |
| 208 } | 208 } |
| 209 m_Chunks.RemoveAll(); | 209 m_Chunks.RemoveAll(); |
| 210 } else { | 210 } else { |
| 211 while (i < nCount) { | 211 while (i < nCount) { |
| 212 m_Chunks[i++]->nUsed = 0; | 212 m_Chunks[i++]->nUsed = 0; |
| 213 } | 213 } |
| 214 } | 214 } |
| 215 m_nTotal = 0; | 215 m_nTotal = 0; |
| 216 m_bChanged = TRUE; | 216 m_bChanged = true; |
| 217 } | 217 } |
| 218 | 218 |
| 219 FX_BOOL CFDE_TxtEdtBuf::Optimize(IFX_Pause* pPause) { | 219 bool CFDE_TxtEdtBuf::Optimize(IFX_Pause* pPause) { |
| 220 if (m_bChanged == FALSE) { | 220 if (m_bChanged == false) { |
| 221 return TRUE; | 221 return true; |
| 222 } | 222 } |
| 223 if (m_nTotal == 0) { | 223 if (m_nTotal == 0) { |
| 224 return TRUE; | 224 return true; |
| 225 } | 225 } |
| 226 int32_t nCount = m_Chunks.GetSize(); | 226 int32_t nCount = m_Chunks.GetSize(); |
| 227 if (nCount == 0) { | 227 if (nCount == 0) { |
| 228 return TRUE; | 228 return true; |
| 229 } | 229 } |
| 230 int32_t i = 0; | 230 int32_t i = 0; |
| 231 for (; i < nCount; i++) { | 231 for (; i < nCount; i++) { |
| 232 FDE_CHUNKHEADER* lpChunk = m_Chunks[i]; | 232 FDE_CHUNKHEADER* lpChunk = m_Chunks[i]; |
| 233 if (lpChunk->nUsed == 0) { | 233 if (lpChunk->nUsed == 0) { |
| 234 m_pAllocator->Free(lpChunk); | 234 m_pAllocator->Free(lpChunk); |
| 235 m_Chunks.RemoveAt(i); | 235 m_Chunks.RemoveAt(i); |
| 236 --i; | 236 --i; |
| 237 --nCount; | 237 --nCount; |
| 238 } | 238 } |
| 239 } | 239 } |
| 240 if (pPause && pPause->NeedToPauseNow()) | 240 if (pPause && pPause->NeedToPauseNow()) |
| 241 return FALSE; | 241 return false; |
| 242 | 242 |
| 243 FDE_CHUNKHEADER* lpPreChunk = m_Chunks[0]; | 243 FDE_CHUNKHEADER* lpPreChunk = m_Chunks[0]; |
| 244 FDE_CHUNKHEADER* lpCurChunk = nullptr; | 244 FDE_CHUNKHEADER* lpCurChunk = nullptr; |
| 245 for (i = 1; i < nCount; i++) { | 245 for (i = 1; i < nCount; i++) { |
| 246 lpCurChunk = m_Chunks[i]; | 246 lpCurChunk = m_Chunks[i]; |
| 247 if (lpPreChunk->nUsed + lpCurChunk->nUsed <= m_nChunkSize) { | 247 if (lpPreChunk->nUsed + lpCurChunk->nUsed <= m_nChunkSize) { |
| 248 FXSYS_memcpy(lpPreChunk->wChars + lpPreChunk->nUsed, lpCurChunk->wChars, | 248 FXSYS_memcpy(lpPreChunk->wChars + lpPreChunk->nUsed, lpCurChunk->wChars, |
| 249 lpCurChunk->nUsed * sizeof(FX_WCHAR)); | 249 lpCurChunk->nUsed * sizeof(FX_WCHAR)); |
| 250 lpPreChunk->nUsed += lpCurChunk->nUsed; | 250 lpPreChunk->nUsed += lpCurChunk->nUsed; |
| 251 m_pAllocator->Free(lpCurChunk); | 251 m_pAllocator->Free(lpCurChunk); |
| 252 m_Chunks.RemoveAt(i); | 252 m_Chunks.RemoveAt(i); |
| 253 --i; | 253 --i; |
| 254 --nCount; | 254 --nCount; |
| 255 } else { | 255 } else { |
| 256 lpPreChunk = lpCurChunk; | 256 lpPreChunk = lpCurChunk; |
| 257 } | 257 } |
| 258 if (pPause && pPause->NeedToPauseNow()) | 258 if (pPause && pPause->NeedToPauseNow()) |
| 259 return FALSE; | 259 return false; |
| 260 } | 260 } |
| 261 m_bChanged = FALSE; | 261 m_bChanged = false; |
| 262 return TRUE; | 262 return true; |
| 263 } | 263 } |
| 264 | 264 |
| 265 void CFDE_TxtEdtBuf::ResetChunkBuffer(int32_t nDefChunkCount, | 265 void CFDE_TxtEdtBuf::ResetChunkBuffer(int32_t nDefChunkCount, |
| 266 int32_t nChunkSize) { | 266 int32_t nChunkSize) { |
| 267 ASSERT(nChunkSize); | 267 ASSERT(nChunkSize); |
| 268 ASSERT(nDefChunkCount); | 268 ASSERT(nDefChunkCount); |
| 269 m_Chunks.RemoveAll(); | 269 m_Chunks.RemoveAll(); |
| 270 m_nChunkSize = nChunkSize; | 270 m_nChunkSize = nChunkSize; |
| 271 int32_t nChunkLength = | 271 int32_t nChunkLength = |
| 272 sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR); | 272 sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR); |
| (...skipping 28 matching lines...) Expand all Loading... |
| 301 int32_t nCount = m_Chunks.GetSize(); | 301 int32_t nCount = m_Chunks.GetSize(); |
| 302 for (; i < nCount; i++) { | 302 for (; i < nCount; i++) { |
| 303 nTotal += m_Chunks[i]->nUsed; | 303 nTotal += m_Chunks[i]->nUsed; |
| 304 if (nTotal > nIndex) { | 304 if (nTotal > nIndex) { |
| 305 break; | 305 break; |
| 306 } | 306 } |
| 307 } | 307 } |
| 308 cp.nChunkIndex = i; | 308 cp.nChunkIndex = i; |
| 309 cp.nCharIndex = m_Chunks[i]->nUsed - (nTotal - nIndex); | 309 cp.nCharIndex = m_Chunks[i]->nUsed - (nTotal - nIndex); |
| 310 } | 310 } |
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