Split xfa/fee files into individual class files.

This CL splits the xfa/fee files into individual class files and moves them
into the xfa/fde directory where they belong.

Review-Url: https://codereview.chromium.org/1994693002

1 files changed, 328 insertions, 0 deletions

diff --git a/xfa/fde/cfde_txtedtbuf.cpp b/xfa/fde/cfde_txtedtbuf.cpp
new file mode 100644
index 0000000000..8bd5c1d37b
--- /dev/null
+++ b/xfa/fde/cfde_txtedtbuf.cpp
@@ -0,0 +1,328 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "xfa/fde/cfde_txtedtbuf.h"
+
+#include "xfa/fgas/crt/fgas_memory.h"
+
+namespace {
+
+const int kDefaultChunkSize = 1024;
+const int kDefaultChunkCount = 2;
+
+}  // namespace
+
+CFDE_TxtEdtBuf::CFDE_TxtEdtBuf()
+    : m_nChunkSize(kDefaultChunkSize),
+      m_nTotal(0),
+      m_bChanged(FALSE),
+      m_pAllocator(NULL) {
+  ASSERT(m_nChunkSize);
+  ResetChunkBuffer(kDefaultChunkCount, m_nChunkSize);
+}
+
+void CFDE_TxtEdtBuf::Release() {
+  delete this;
+}
+
+CFDE_TxtEdtBuf::~CFDE_TxtEdtBuf() {
+  Clear(TRUE);
+  delete m_pAllocator;
+  m_Chunks.RemoveAll();
+}
+
+FX_BOOL CFDE_TxtEdtBuf::SetChunkSize(int32_t nChunkSize) {
+  ASSERT(nChunkSize);
+  ResetChunkBuffer(kDefaultChunkCount, nChunkSize);
+  return TRUE;
+}
+
+int32_t CFDE_TxtEdtBuf::GetChunkSize() const {
+  return m_nChunkSize;
+}
+
+int32_t CFDE_TxtEdtBuf::GetTextLength() const {
+  return m_nTotal;
+}
+
+void CFDE_TxtEdtBuf::SetText(const CFX_WideString& wsText) {
+  ASSERT(!wsText.IsEmpty());
+  Clear(FALSE);
+  int32_t nTextLength = wsText.GetLength();
+  int32_t nNeedCount =
+      ((nTextLength - 1) / m_nChunkSize + 1) - m_Chunks.GetSize();
+  int32_t i = 0;
+  for (i = 0; i < nNeedCount; i++) {
+    FDE_CHUNKHEADER* lpChunk =
+        static_cast<FDE_CHUNKHEADER*>(m_pAllocator->Alloc(
+            sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR)));
+    lpChunk->nUsed = 0;
+    m_Chunks.Add(lpChunk);
+  }
+  int32_t nTotalCount = m_Chunks.GetSize();
+  const FX_WCHAR* lpSrcBuf = wsText.c_str();
+  int32_t nLeave = nTextLength;
+  int32_t nCopyedLength = m_nChunkSize;
+  for (i = 0; i < nTotalCount && nLeave > 0; i++) {
+    if (nLeave < nCopyedLength) {
+      nCopyedLength = nLeave;
+    }
+    FDE_CHUNKHEADER* lpChunk = m_Chunks[i];
+    FXSYS_memcpy(lpChunk->wChars, lpSrcBuf, nCopyedLength * sizeof(FX_WCHAR));
+    nLeave -= nCopyedLength;
+    lpSrcBuf += nCopyedLength;
+    lpChunk->nUsed = nCopyedLength;
+  }
+  m_nTotal = nTextLength;
+  m_bChanged = TRUE;
+}
+
+void CFDE_TxtEdtBuf::GetText(CFX_WideString& wsText) const {
+  GetRange(wsText, 0, m_nTotal);
+}
+
+FX_WCHAR CFDE_TxtEdtBuf::GetCharByIndex(int32_t nIndex) const {
+  ASSERT(nIndex >= 0 && nIndex < GetTextLength());
+  FDE_CHUNKHEADER* pChunkHeader = nullptr;
+  int32_t nTotal = 0;
+  int32_t nCount = m_Chunks.GetSize();
+  int32_t i = 0;
+  for (i = 0; i < nCount; i++) {
+    pChunkHeader = m_Chunks[i];
+    nTotal += pChunkHeader->nUsed;
+    if (nTotal > nIndex) {
+      break;
+    }
+  }
+  ASSERT(pChunkHeader);
+  return pChunkHeader->wChars[pChunkHeader->nUsed - (nTotal - nIndex)];
+}
+
+void CFDE_TxtEdtBuf::GetRange(CFX_WideString& wsText,
+                              int32_t nBegin,
+                              int32_t nLength) const {
+  FDE_CHUNKPLACE cp;
+  Index2CP(nBegin, cp);
+  int32_t nLeave = nLength;
+  int32_t nCount = m_Chunks.GetSize();
+  FX_WCHAR* lpDstBuf = wsText.GetBuffer(nLength);
+  int32_t nChunkIndex = cp.nChunkIndex;
+  FDE_CHUNKHEADER* lpChunkHeader = m_Chunks[nChunkIndex];
+  int32_t nCopyLength = lpChunkHeader->nUsed - cp.nCharIndex;
+  FX_WCHAR* lpSrcBuf = lpChunkHeader->wChars + cp.nCharIndex;
+  while (nLeave > 0) {
+    if (nLeave <= nCopyLength) {
+      nCopyLength = nLeave;
+    }
+    FXSYS_memcpy(lpDstBuf, lpSrcBuf, nCopyLength * sizeof(FX_WCHAR));
+    nChunkIndex++;
+    if (nChunkIndex >= nCount) {
+      break;
+    }
+    lpChunkHeader = m_Chunks[nChunkIndex];
+    lpSrcBuf = lpChunkHeader->wChars;
+    nLeave -= nCopyLength;
+    lpDstBuf += nCopyLength;
+    nCopyLength = lpChunkHeader->nUsed;
+  }
+  wsText.ReleaseBuffer();
+}
+
+void CFDE_TxtEdtBuf::Insert(int32_t nPos,
+                            const FX_WCHAR* lpText,
+                            int32_t nLength) {
+  ASSERT(nPos >= 0 && nPos <= m_nTotal);
+  FDE_CHUNKPLACE cp;
+  Index2CP(nPos, cp);
+  int32_t nLengthTemp = nLength;
+  if (cp.nCharIndex != 0) {
+    FDE_CHUNKHEADER* lpNewChunk =
+        static_cast<FDE_CHUNKHEADER*>(m_pAllocator->Alloc(
+            sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR)));
+    FDE_CHUNKHEADER* lpChunk = m_Chunks[cp.nChunkIndex];
+    int32_t nCopy = lpChunk->nUsed - cp.nCharIndex;
+    FXSYS_memcpy(lpNewChunk->wChars, lpChunk->wChars + cp.nCharIndex,
+                 nCopy * sizeof(FX_WCHAR));
+    lpChunk->nUsed -= nCopy;
+    cp.nChunkIndex++;
+    m_Chunks.InsertAt(cp.nChunkIndex, lpNewChunk);
+    lpNewChunk->nUsed = nCopy;
+    cp.nCharIndex = 0;
+  }
+  if (cp.nChunkIndex != 0) {
+    FDE_CHUNKHEADER* lpChunk = m_Chunks[cp.nChunkIndex - 1];
+    if (lpChunk->nUsed != m_nChunkSize) {
+      cp.nChunkIndex--;
+      int32_t nFree = m_nChunkSize - lpChunk->nUsed;
+      int32_t nCopy = std::min(nLengthTemp, nFree);
+      FXSYS_memcpy(lpChunk->wChars + lpChunk->nUsed, lpText,
+                   nCopy * sizeof(FX_WCHAR));
+      lpText += nCopy;
+      nLengthTemp -= nCopy;
+      lpChunk->nUsed += nCopy;
+      cp.nChunkIndex++;
+    }
+  }
+  while (nLengthTemp > 0) {
+    FDE_CHUNKHEADER* lpChunk =
+        static_cast<FDE_CHUNKHEADER*>(m_pAllocator->Alloc(
+            sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR)));
+    ASSERT(lpChunk);
+    int32_t nCopy = std::min(nLengthTemp, m_nChunkSize);
+    FXSYS_memcpy(lpChunk->wChars, lpText, nCopy * sizeof(FX_WCHAR));
+    lpText += nCopy;
+    nLengthTemp -= nCopy;
+    lpChunk->nUsed = nCopy;
+    m_Chunks.InsertAt(cp.nChunkIndex, lpChunk);
+    cp.nChunkIndex++;
+  }
+  m_nTotal += nLength;
+  m_bChanged = TRUE;
+}
+
+void CFDE_TxtEdtBuf::Delete(int32_t nIndex, int32_t nLength) {
+  ASSERT(nLength > 0 && nIndex >= 0 && nIndex + nLength <= m_nTotal);
+  FDE_CHUNKPLACE cpEnd;
+  Index2CP(nIndex + nLength - 1, cpEnd);
+  m_nTotal -= nLength;
+  FDE_CHUNKHEADER* lpChunk = m_Chunks[cpEnd.nChunkIndex];
+  int32_t nFirstPart = cpEnd.nCharIndex + 1;
+  int32_t nMovePart = lpChunk->nUsed - nFirstPart;
+  if (nMovePart != 0) {
+    int32_t nDelete = std::min(nFirstPart, nLength);
+    FXSYS_memmove(lpChunk->wChars + nFirstPart - nDelete,
+                  lpChunk->wChars + nFirstPart, nMovePart * sizeof(FX_WCHAR));
+    lpChunk->nUsed -= nDelete;
+    nLength -= nDelete;
+    cpEnd.nChunkIndex--;
+  }
+  while (nLength > 0) {
+    lpChunk = m_Chunks[cpEnd.nChunkIndex];
+    int32_t nDeleted = std::min(lpChunk->nUsed, nLength);
+    lpChunk->nUsed -= nDeleted;
+    if (lpChunk->nUsed == 0) {
+      m_pAllocator->Free(lpChunk);
+      m_Chunks.RemoveAt(cpEnd.nChunkIndex);
+      lpChunk = NULL;
+    }
+    nLength -= nDeleted;
+    cpEnd.nChunkIndex--;
+  }
+  m_bChanged = TRUE;
+}
+
+void CFDE_TxtEdtBuf::Clear(FX_BOOL bRelease) {
+  int32_t i = 0;
+  int32_t nCount = m_Chunks.GetSize();
+  if (bRelease) {
+    while (i < nCount) {
+      m_pAllocator->Free(m_Chunks[i++]);
+    }
+    m_Chunks.RemoveAll();
+  } else {
+    while (i < nCount) {
+      m_Chunks[i++]->nUsed = 0;
+    }
+  }
+  m_nTotal = 0;
+  m_bChanged = TRUE;
+}
+
+FX_BOOL CFDE_TxtEdtBuf::Optimize(IFX_Pause* pPause) {
+  if (m_bChanged == FALSE) {
+    return TRUE;
+  }
+  if (m_nTotal == 0) {
+    return TRUE;
+  }
+  int32_t nCount = m_Chunks.GetSize();
+  if (nCount == 0) {
+    return TRUE;
+  }
+  int32_t i = 0;
+  for (; i < nCount; i++) {
+    FDE_CHUNKHEADER* lpChunk = m_Chunks[i];
+    if (lpChunk->nUsed == 0) {
+      m_pAllocator->Free(lpChunk);
+      m_Chunks.RemoveAt(i);
+      --i;
+      --nCount;
+    }
+  }
+  if (pPause && pPause->NeedToPauseNow())
+    return FALSE;
+
+  FDE_CHUNKHEADER* lpPreChunk = m_Chunks[0];
+  FDE_CHUNKHEADER* lpCurChunk = nullptr;
+  for (i = 1; i < nCount; i++) {
+    lpCurChunk = m_Chunks[i];
+    if (lpPreChunk->nUsed + lpCurChunk->nUsed <= m_nChunkSize) {
+      FXSYS_memcpy(lpPreChunk->wChars + lpPreChunk->nUsed, lpCurChunk->wChars,
+                   lpCurChunk->nUsed * sizeof(FX_WCHAR));
+      lpPreChunk->nUsed += lpCurChunk->nUsed;
+      m_pAllocator->Free(lpCurChunk);
+      m_Chunks.RemoveAt(i);
+      --i;
+      --nCount;
+    } else {
+      lpPreChunk = lpCurChunk;
+    }
+    if (pPause != NULL && pPause->NeedToPauseNow()) {
+      return FALSE;
+    }
+  }
+  m_bChanged = FALSE;
+  return TRUE;
+}
+
+void CFDE_TxtEdtBuf::ResetChunkBuffer(int32_t nDefChunkCount,
+                                      int32_t nChunkSize) {
+  ASSERT(nChunkSize);
+  ASSERT(nDefChunkCount);
+  delete m_pAllocator;
+  m_pAllocator = nullptr;
+  m_Chunks.RemoveAll();
+  m_nChunkSize = nChunkSize;
+  int32_t nChunkLength =
+      sizeof(FDE_CHUNKHEADER) + (m_nChunkSize - 1) * sizeof(FX_WCHAR);
+  m_pAllocator = IFX_MemoryAllocator::Create(FX_ALLOCTYPE_Fixed, nDefChunkCount,
+                                             nChunkLength);
+  FDE_CHUNKHEADER* lpChunkHeader =
+      static_cast<FDE_CHUNKHEADER*>(m_pAllocator->Alloc(nChunkLength));
+  ASSERT(lpChunkHeader);
+  lpChunkHeader->nUsed = 0;
+  m_Chunks.Add(lpChunkHeader);
+  m_nTotal = 0;
+}
+
+int32_t CFDE_TxtEdtBuf::CP2Index(const FDE_CHUNKPLACE& cp) const {
+  int32_t nTotal = cp.nCharIndex;
+  int32_t i = 0;
+  for (i = 0; i < cp.nChunkIndex; i++) {
+    nTotal += m_Chunks[i]->nUsed;
+  }
+  return nTotal;
+}
+
+void CFDE_TxtEdtBuf::Index2CP(int32_t nIndex, FDE_CHUNKPLACE& cp) const {
+  ASSERT(nIndex <= GetTextLength());
+  if (nIndex == m_nTotal) {
+    cp.nChunkIndex = m_Chunks.GetSize() - 1;
+    cp.nCharIndex = m_Chunks[cp.nChunkIndex]->nUsed;
+    return;
+  }
+  int32_t i = 0;
+  int32_t nTotal = 0;
+  int32_t nCount = m_Chunks.GetSize();
+  for (; i < nCount; i++) {
+    nTotal += m_Chunks[i]->nUsed;
+    if (nTotal > nIndex) {
+      break;
+    }
+  }
+  cp.nChunkIndex = i;
+  cp.nCharIndex = m_Chunks[i]->nUsed - (nTotal - nIndex);
+}