clang-format all code

core/src/fpdfapi/fpdf_page/fpdf_page.cpp

 // 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 "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "pageint.h"
-void CPDF_PageObject::Release()
-{
-    delete this;
-}
-CPDF_PageObject* CPDF_PageObject::Create(int type)
-{
-    switch (type) {
-        case PDFPAGE_TEXT:
-            return FX_NEW CPDF_TextObject;
-        case PDFPAGE_IMAGE:
-            return FX_NEW CPDF_ImageObject;
-        case PDFPAGE_PATH:
-            return FX_NEW CPDF_PathObject;
-        case PDFPAGE_SHADING:
-            return FX_NEW CPDF_ShadingObject;
-        case PDFPAGE_FORM:
-            return FX_NEW CPDF_FormObject;
-    }
-    return NULL;
-}
-CPDF_PageObject* CPDF_PageObject::Clone() const
-{
-    CPDF_PageObject* pObj = Create(m_Type);
-    pObj->Copy(this);
-    return pObj;
-}
-void CPDF_PageObject::Copy(const CPDF_PageObject* pSrc)
-{
-    if (m_Type != pSrc->m_Type) {
+void CPDF_PageObject::Release() {
+  delete this;
+}
+CPDF_PageObject* CPDF_PageObject::Create(int type) {
+  switch (type) {
+    case PDFPAGE_TEXT:
+      return FX_NEW CPDF_TextObject;
+    case PDFPAGE_IMAGE:
+      return FX_NEW CPDF_ImageObject;
+    case PDFPAGE_PATH:
+      return FX_NEW CPDF_PathObject;
+    case PDFPAGE_SHADING:
+      return FX_NEW CPDF_ShadingObject;
+    case PDFPAGE_FORM:
+      return FX_NEW CPDF_FormObject;
+  }
+  return NULL;
+}
+CPDF_PageObject* CPDF_PageObject::Clone() const {
+  CPDF_PageObject* pObj = Create(m_Type);
+  pObj->Copy(this);
+  return pObj;
+}
+void CPDF_PageObject::Copy(const CPDF_PageObject* pSrc) {
+  if (m_Type != pSrc->m_Type) {
+    return;
+  }
+  CopyData(pSrc);
+  CopyStates(*pSrc);
+  m_Left = pSrc->m_Left;
+  m_Right = pSrc->m_Right;
+  m_Top = pSrc->m_Top;
+  m_Bottom = pSrc->m_Bottom;
+}
+void CPDF_PageObject::AppendClipPath(CPDF_Path path,
+                                     int type,
+                                     FX_BOOL bAutoMerge) {
+  m_ClipPath.AppendPath(path, type, bAutoMerge);
+}
+void CPDF_PageObject::CopyClipPath(CPDF_PageObject* pObj) {
+  m_ClipPath = pObj->m_ClipPath;
+}
+void CPDF_PageObject::RemoveClipPath() {
+  m_ClipPath.SetNull();
+}
+void CPDF_PageObject::RecalcBBox() {
+  switch (m_Type) {
+    case PDFPAGE_TEXT:
+      ((CPDF_TextObject*)this)->RecalcPositionData();
+      break;
+    case PDFPAGE_PATH:
+      ((CPDF_PathObject*)this)->CalcBoundingBox();
+      break;
+    case PDFPAGE_SHADING:
+      ((CPDF_ShadingObject*)this)->CalcBoundingBox();
+      break;
+  }
+}
+void CPDF_PageObject::TransformClipPath(CFX_AffineMatrix& matrix) {
+  if (m_ClipPath.IsNull()) {
+    return;
+  }
+  m_ClipPath.GetModify();
+  m_ClipPath.Transform(matrix);
+}
+void CPDF_PageObject::TransformGeneralState(CFX_AffineMatrix& matrix) {
+  if (m_GeneralState.IsNull()) {
+    return;
+  }
+  CPDF_GeneralStateData* pGS = m_GeneralState.GetModify();
+  pGS->m_Matrix.Concat(matrix);
+}
+FX_RECT CPDF_PageObject::GetBBox(const CFX_AffineMatrix* pMatrix) const {
+  CFX_FloatRect rect(m_Left, m_Bottom, m_Right, m_Top);
+  if (pMatrix) {
+    pMatrix->TransformRect(rect);
+  }
+  return rect.GetOutterRect();
+}
+CPDF_TextObject::CPDF_TextObject() {
+  m_Type = PDFPAGE_TEXT;
+  m_pCharCodes = NULL;
+  m_pCharPos = NULL;
+  m_nChars = 0;
+  m_PosX = m_PosY = 0;
+}
+CPDF_TextObject::~CPDF_TextObject() {
+  if (m_nChars > 1 && m_pCharCodes) {
+    FX_Free(m_pCharCodes);
+  }
+  if (m_pCharPos) {
+    FX_Free(m_pCharPos);
+  }
+}
+void CPDF_TextObject::GetItemInfo(int index, CPDF_TextObjectItem* pInfo) const {
+  pInfo->m_CharCode =
+      m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR) m_pCharCodes : m_pCharCodes[index];
+  pInfo->m_OriginX = index ? m_pCharPos[index - 1] : 0;
+  pInfo->m_OriginY = 0;
+  if (pInfo->m_CharCode == -1) {
+    return;
+  }
+  CPDF_Font* pFont = m_TextState.GetFont();
+  if (pFont->GetFontType() != PDFFONT_CIDFONT) {
+    return;
+  }
+  if (!((CPDF_CIDFont*)pFont)->IsVertWriting()) {
+    return;
+  }
+  FX_WORD CID = ((CPDF_CIDFont*)pFont)->CIDFromCharCode(pInfo->m_CharCode);
+  pInfo->m_OriginY = pInfo->m_OriginX;
+  pInfo->m_OriginX = 0;
+  short vx, vy;
+  ((CPDF_CIDFont*)pFont)->GetVertOrigin(CID, vx, vy);
+  FX_FLOAT fontsize = m_TextState.GetFontSize();
+  pInfo->m_OriginX -= fontsize * vx / 1000;
+  pInfo->m_OriginY -= fontsize * vy / 1000;
+}
+int CPDF_TextObject::CountChars() const {
+  if (m_nChars == 1) {
+    return 1;
+  }
+  int count = 0;
+  for (int i = 0; i < m_nChars; i++)
+    if (m_pCharCodes[i] != (FX_DWORD)-1) {
+      count++;
+    }
+  return count;
+}
+void CPDF_TextObject::GetCharInfo(int index,
+                                  FX_DWORD& charcode,
+                                  FX_FLOAT& kerning) const {
+  if (m_nChars == 1) {
+    charcode = (FX_DWORD)(FX_UINTPTR) m_pCharCodes;
+    kerning = 0;
+    return;
+  }
+  int count = 0;
+  for (int i = 0; i < m_nChars; i++) {
+    if (m_pCharCodes[i] != (FX_DWORD)-1) {
+      if (count == index) {
+        charcode = m_pCharCodes[i];
+        if (i == m_nChars - 1 || m_pCharCodes[i + 1] != (FX_DWORD)-1) {
+          kerning = 0;
+        } else {
+          kerning = m_pCharPos[i];
+        }
         return;
-    }
-    CopyData(pSrc);
-    CopyStates(*pSrc);
-    m_Left = pSrc->m_Left;
-    m_Right = pSrc->m_Right;
-    m_Top = pSrc->m_Top;
-    m_Bottom = pSrc->m_Bottom;
-}
-void CPDF_PageObject::AppendClipPath(CPDF_Path path, int type, FX_BOOL bAutoMerge)
-{
-    m_ClipPath.AppendPath(path, type, bAutoMerge);
-}
-void CPDF_PageObject::CopyClipPath(CPDF_PageObject* pObj)
-{
-    m_ClipPath = pObj->m_ClipPath;
-}
-void CPDF_PageObject::RemoveClipPath()
-{
-    m_ClipPath.SetNull();
-}
-void CPDF_PageObject::RecalcBBox()
-{
-    switch (m_Type) {
-        case PDFPAGE_TEXT:
-            ((CPDF_TextObject*)this)->RecalcPositionData();
-            break;
-        case PDFPAGE_PATH:
-            ((CPDF_PathObject*)this)->CalcBoundingBox();
-            break;
-        case PDFPAGE_SHADING:
-            ((CPDF_ShadingObject*)this)->CalcBoundingBox();
-            break;
-    }
-}
-void CPDF_PageObject::TransformClipPath(CFX_AffineMatrix& matrix)
-{
-    if (m_ClipPath.IsNull()) {
-        return;
-    }
+      }
+      count++;
+    }
+  }
+}
+void CPDF_TextObject::GetCharInfo(int index, CPDF_TextObjectItem* pInfo) const {
+  if (m_nChars == 1) {
+    GetItemInfo(0, pInfo);
+    return;
+  }
+  int count = 0;
+  for (int i = 0; i < m_nChars; i++) {
+    FX_DWORD charcode = m_pCharCodes[i];
+    if (charcode == (FX_DWORD)-1) {
+      continue;
+    }
+    if (count == index) {
+      GetItemInfo(i, pInfo);
+      break;
+    }
+    count++;
+  }
+}
+void CPDF_TextObject::CopyData(const CPDF_PageObject* pSrc) {
+  const CPDF_TextObject* pSrcObj = (const CPDF_TextObject*)pSrc;
+  if (m_nChars > 1 && m_pCharCodes) {
+    FX_Free(m_pCharCodes);
+    m_pCharCodes = NULL;
+  }
+  if (m_pCharPos) {
+    FX_Free(m_pCharPos);
+    m_pCharPos = NULL;
+  }
+  m_nChars = pSrcObj->m_nChars;
+  if (m_nChars > 1) {
+    m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
+    m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
+    int i;
+    for (i = 0; i < m_nChars; i++) {
+      m_pCharCodes[i] = pSrcObj->m_pCharCodes[i];
+    }
+    for (i = 0; i < m_nChars - 1; i++) {
+      m_pCharPos[i] = pSrcObj->m_pCharPos[i];
+    }
+  } else {
+    m_pCharCodes = pSrcObj->m_pCharCodes;
+  }
+  m_PosX = pSrcObj->m_PosX;
+  m_PosY = pSrcObj->m_PosY;
+}
+void CPDF_TextObject::GetTextMatrix(CFX_AffineMatrix* pMatrix) const {
+  FX_FLOAT* pTextMatrix = m_TextState.GetMatrix();
+  pMatrix->Set(pTextMatrix[0],
+               pTextMatrix[2],
+               pTextMatrix[1],
+               pTextMatrix[3],
+               m_PosX,
+               m_PosY);
+}
+void CPDF_TextObject::SetSegments(const CFX_ByteString* pStrs,
+                                  FX_FLOAT* pKerning,
+                                  int nsegs) {
+  if (m_nChars > 1 && m_pCharCodes) {
+    FX_Free(m_pCharCodes);
+    m_pCharCodes = NULL;
+  }
+  if (m_pCharPos) {
+    FX_Free(m_pCharPos);
+    m_pCharPos = NULL;
+  }
+  CPDF_Font* pFont = m_TextState.GetFont();
+  m_nChars = 0;
+  for (int i = 0; i < nsegs; i++) {
+    m_nChars += pFont->CountChar(pStrs[i], pStrs[i].GetLength());
+  }
+  m_nChars += nsegs - 1;
+  if (m_nChars > 1) {
+    m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
+    m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
+    int index = 0;
+    for (int i = 0; i < nsegs; i++) {
+      FX_LPCSTR segment = pStrs[i];
+      int offset = 0, len = pStrs[i].GetLength();
+      while (offset < len) {
+        m_pCharCodes[index++] = pFont->GetNextChar(segment, offset);
+      }
+      if (i != nsegs - 1) {
+        m_pCharPos[index - 1] = pKerning[i];
+        m_pCharCodes[index++] = (FX_DWORD)-1;
+      }
+    }
+  } else {
+    int offset = 0;
+    m_pCharCodes = (FX_DWORD*)(FX_UINTPTR) pFont->GetNextChar(pStrs[0], offset);
+  }
+}
+void CPDF_TextObject::SetText(const CFX_ByteString& str) {
+  SetSegments(&str, NULL, 1);
+  RecalcPositionData();
+}
+void CPDF_TextObject::SetEmpty() {
+  if (m_nChars > 1 && m_pCharCodes) {
+    FX_Free(m_pCharCodes);
+  }
+  if (m_nChars > 1 && m_pCharPos) {
+    FX_Free(m_pCharPos);
+  }
+  m_nChars = 0;
+  m_pCharCodes = NULL;
+  m_pCharPos = NULL;
+  m_Left = m_Right = m_PosX;
+  m_Top = m_Bottom = m_PosY;
+}
+void CPDF_TextObject::SetText(CFX_ByteString* pStrs,
+                              FX_FLOAT* pKerning,
+                              int nSegs) {
+  SetSegments(pStrs, pKerning, nSegs);
+  RecalcPositionData();
+}
+void CPDF_TextObject::SetText(int nChars,
+                              FX_DWORD* pCharCodes,
+                              FX_FLOAT* pKernings) {
+  if (m_nChars > 1 && m_pCharCodes) {
+    FX_Free(m_pCharCodes);
+    m_pCharCodes = NULL;
+  }
+  if (m_pCharPos) {
+    FX_Free(m_pCharPos);
+    m_pCharPos = NULL;
+  }
+  int nKernings = 0;
+  int i;
+  for (i = 0; i < nChars - 1; i++)
+    if (pKernings[i] != 0) {
+      nKernings++;
+    }
+  m_nChars = nChars + nKernings;
+  if (m_nChars > 1) {
+    m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
+    m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
+    int index = 0;
+    for (int i = 0; i < nChars; i++) {
+      m_pCharCodes[index++] = pCharCodes[i];
+      if (pKernings[i] != 0 && i != nChars - 1) {
+        m_pCharCodes[index] = (FX_DWORD)-1;
+        m_pCharPos[index - 1] = pKernings[i];
+        index++;
+      }
+    }
+  } else {
+    m_pCharCodes = (FX_DWORD*)(FX_UINTPTR) pCharCodes[0];
+  }
+  RecalcPositionData();
+}
+FX_FLOAT CPDF_TextObject::GetCharWidth(FX_DWORD charcode) const {
+  FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
+  CPDF_Font* pFont = m_TextState.GetFont();
+  FX_BOOL bVertWriting = FALSE;
+  CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
+  if (pCIDFont) {
+    bVertWriting = pCIDFont->IsVertWriting();
+  }
+  if (!bVertWriting) {
+    return pFont->GetCharWidthF(charcode, 0) * fontsize;
+  } else {
+    FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
+    return pCIDFont->GetVertWidth(CID) * fontsize;
+  }
+}
+FX_FLOAT CPDF_TextObject::GetSpaceCharWidth() const {
+  CPDF_Font* pFont = m_TextState.GetFont();
+  FX_DWORD charCode = m_TextState.GetFont()->CharCodeFromUnicode(32);
+  if (charCode != (FX_DWORD)-1) {
+    return GetCharWidth(charCode);
+  }
+  FX_FLOAT fontSize = m_TextState.GetFontSize() / 4000.0f;
+  FX_BOOL bVertWriting = FALSE;
+  CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
+  if (pCIDFont) {
+    bVertWriting = pCIDFont->IsVertWriting();
+  }
+  FX_RECT fontRect;
+  pFont->GetFontBBox(fontRect);
+  fontSize *=
+      bVertWriting ? (FX_FLOAT)fontRect.Height() : (FX_FLOAT)fontRect.Width();
+  return fontSize;
+}
+void CPDF_TextObject::GetCharRect(int index, CFX_FloatRect& rect) const {
+  CPDF_Font* pFont = m_TextState.GetFont();
+  FX_BOOL bVertWriting = FALSE;
+  CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
+  if (pCIDFont) {
+    bVertWriting = pCIDFont->IsVertWriting();
+  }
+  FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
+  int count = 0;
+  for (int i = 0; i < m_nChars; i++) {
+    FX_DWORD charcode =
+        m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR) m_pCharCodes : m_pCharCodes[i];
+    if (charcode == (FX_DWORD)-1) {
+      continue;
+    }
+    if (count != index) {
+      count++;
+      continue;
+    }
+    FX_FLOAT curpos = i > 0 ? m_pCharPos[i - 1] : 0;
+    FX_RECT char_rect;
+    pFont->GetCharBBox(charcode, char_rect, 0);
+    if (!bVertWriting) {
+      rect.left = curpos + char_rect.left * fontsize;
+      rect.right = curpos + char_rect.right * fontsize;
+      rect.top = char_rect.top * fontsize;
+      rect.bottom = char_rect.bottom * fontsize;
+    } else {
+      FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
+      short vx, vy;
+      pCIDFont->GetVertOrigin(CID, vx, vy);
+      char_rect.left -= vx;
+      char_rect.right -= vx;
+      char_rect.top -= vy;
+      char_rect.bottom -= vy;
+      rect.left = char_rect.left * fontsize;
+      rect.right = char_rect.right * fontsize;
+      rect.top = curpos + char_rect.top * fontsize;
+      rect.bottom = curpos + char_rect.bottom * fontsize;
+    }
+    return;
+  }
+}
+void CPDF_TextObject::CalcPositionData(FX_FLOAT* pTextAdvanceX,
+                                       FX_FLOAT* pTextAdvanceY,
+                                       FX_FLOAT horz_scale,
+                                       int level) {
+  FX_FLOAT curpos = 0;
+  FX_FLOAT min_x = 10000 * 1.0f, max_x = -10000 * 1.0f, min_y = 10000 * 1.0f,
+           max_y = -10000 * 1.0f;
+  CPDF_Font* pFont = m_TextState.GetFont();
+  FX_BOOL bVertWriting = FALSE;
+  CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
+  if (pCIDFont) {
+    bVertWriting = pCIDFont->IsVertWriting();
+  }
+  FX_FLOAT fontsize = m_TextState.GetFontSize();
+  for (int i = 0; i < m_nChars; i++) {
+    FX_DWORD charcode =
+        m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR) m_pCharCodes : m_pCharCodes[i];
+    if (charcode == (FX_DWORD)-1) {
+      curpos -= FXSYS_Mul(m_pCharPos[i - 1], fontsize) / 1000;
+      continue;
+    }
+    if (i) {
+      m_pCharPos[i - 1] = curpos;
+    }
+    FX_RECT char_rect;
+    pFont->GetCharBBox(charcode, char_rect, level);
+    FX_FLOAT charwidth;
+    if (!bVertWriting) {
+      if (min_y > char_rect.top) {
+        min_y = (FX_FLOAT)char_rect.top;
+      }
+      if (max_y < char_rect.top) {
+        max_y = (FX_FLOAT)char_rect.top;
+      }
+      if (min_y > char_rect.bottom) {
+        min_y = (FX_FLOAT)char_rect.bottom;
+      }
+      if (max_y < char_rect.bottom) {
+        max_y = (FX_FLOAT)char_rect.bottom;
+      }
+      FX_FLOAT char_left = curpos + char_rect.left * fontsize / 1000;
+      FX_FLOAT char_right = curpos + char_rect.right * fontsize / 1000;
+      if (min_x > char_left) {
+        min_x = char_left;
+      }
+      if (max_x < char_left) {
+        max_x = char_left;
+      }
+      if (min_x > char_right) {
+        min_x = char_right;
+      }
+      if (max_x < char_right) {
+        max_x = char_right;
+      }
+      charwidth = pFont->GetCharWidthF(charcode, level) * fontsize / 1000;
+    } else {
+      FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
+      short vx, vy;
+      pCIDFont->GetVertOrigin(CID, vx, vy);
+      char_rect.left -= vx;
+      char_rect.right -= vx;
+      char_rect.top -= vy;
+      char_rect.bottom -= vy;
+      if (min_x > char_rect.left) {
+        min_x = (FX_FLOAT)char_rect.left;
+      }
+      if (max_x < char_rect.left) {
+        max_x = (FX_FLOAT)char_rect.left;
+      }
+      if (min_x > char_rect.right) {
+        min_x = (FX_FLOAT)char_rect.right;
+      }
+      if (max_x < char_rect.right) {
+        max_x = (FX_FLOAT)char_rect.right;
+      }
+      FX_FLOAT char_top = curpos + char_rect.top * fontsize / 1000;
+      FX_FLOAT char_bottom = curpos + char_rect.bottom * fontsize / 1000;
+      if (min_y > char_top) {
+        min_y = char_top;
+      }
+      if (max_y < char_top) {
+        max_y = char_top;
+      }
+      if (min_y > char_bottom) {
+        min_y = char_bottom;
+      }
+      if (max_y < char_bottom) {
+        max_y = char_bottom;
+      }
+      charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
+    }
+    curpos += charwidth;
+    if (charcode == ' ' &&
+        (pCIDFont == NULL || pCIDFont->GetCharSize(32) == 1)) {
+      curpos += m_TextState.GetObject()->m_WordSpace;
+    }
+    curpos += m_TextState.GetObject()->m_CharSpace;
+  }
+  if (bVertWriting) {
+    if (pTextAdvanceX) {
+      *pTextAdvanceX = 0;
+    }
+    if (pTextAdvanceY) {
+      *pTextAdvanceY = curpos;
+    }
+    min_x = min_x * fontsize / 1000;
+    max_x = max_x * fontsize / 1000;
+  } else {
+    if (pTextAdvanceX) {
+      *pTextAdvanceX = FXSYS_Mul(curpos, horz_scale);
+    }
+    if (pTextAdvanceY) {
+      *pTextAdvanceY = 0;
+    }
+    min_y = min_y * fontsize / 1000;
+    max_y = max_y * fontsize / 1000;
+  }
+  CFX_AffineMatrix matrix;
+  GetTextMatrix(&matrix);
+  m_Left = min_x;
+  m_Right = max_x;
+  m_Bottom = min_y;
+  m_Top = max_y;
+  matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
+  int textmode = m_TextState.GetObject()->m_TextMode;
+  if (textmode == 1 || textmode == 2 || textmode == 5 || textmode == 6) {
+    FX_FLOAT half_width = m_GraphState.GetObject()->m_LineWidth / 2;
+    m_Left -= half_width;
+    m_Right += half_width;
+    m_Top += half_width;
+    m_Bottom -= half_width;
+  }
+}
+void CPDF_TextObject::CalcCharPos(FX_FLOAT* pPosArray) const {
+  CPDF_Font* pFont = m_TextState.GetFont();
+  FX_BOOL bVertWriting = FALSE;
+  CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
+  if (pCIDFont) {
+    bVertWriting = pCIDFont->IsVertWriting();
+  }
+  FX_FLOAT fontsize = m_TextState.GetFontSize();
+  int index = 0;
+  for (int i = 0; i < m_nChars; i++) {
+    FX_DWORD charcode =
+        m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR) m_pCharCodes : m_pCharCodes[i];
+    if (charcode == (FX_DWORD)-1) {
+      continue;
+    }
+    pPosArray[index++] = i ? m_pCharPos[i - 1] : 0;
+    FX_FLOAT charwidth;
+    if (bVertWriting) {
+      FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
+      charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
+    } else {
+      charwidth = pFont->GetCharWidthF(charcode) * fontsize / 1000;
+    }
+    pPosArray[index] = pPosArray[index - 1] + charwidth;
+    index++;
+  }
+}
+void CPDF_TextObject::Transform(const CFX_AffineMatrix& matrix) {
+  m_TextState.GetModify();
+  CFX_AffineMatrix text_matrix;
+  GetTextMatrix(&text_matrix);
+  text_matrix.Concat(matrix);
+  FX_FLOAT* pTextMatrix = m_TextState.GetMatrix();
+  pTextMatrix[0] = text_matrix.GetA();
+  pTextMatrix[1] = text_matrix.GetC();
+  pTextMatrix[2] = text_matrix.GetB();
+  pTextMatrix[3] = text_matrix.GetD();
+  m_PosX = text_matrix.GetE();
+  m_PosY = text_matrix.GetF();
+  CalcPositionData(NULL, NULL, 0);
+}
+void CPDF_TextObject::SetPosition(FX_FLOAT x, FX_FLOAT y) {
+  FX_FLOAT dx = x - m_PosX;
+  FX_FLOAT dy = y - m_PosY;
+  m_PosX = x;
+  m_PosY = y;
+  m_Left += dx;
+  m_Right += dx;
+  m_Top += dy;
+  m_Bottom += dy;
+}
+void CPDF_TextObject::SetData(int nChars,
+                              FX_DWORD* pCharCodes,
+                              FX_FLOAT* pCharPos,
+                              FX_FLOAT x,
+                              FX_FLOAT y) {
+  ASSERT(m_nChars == 0);
+  m_nChars = nChars;
+  m_PosX = x;
+  m_PosY = y;
+  if (nChars == 0) {
+    return;
+  }
+  if (nChars == 1) {
+    m_pCharCodes = (FX_DWORD*)(FX_UINTPTR) * pCharCodes;
+  } else {
+    m_pCharCodes = FX_Alloc(FX_DWORD, nChars);
+    FXSYS_memcpy32(m_pCharCodes, pCharCodes, sizeof(FX_DWORD) * nChars);
+    m_pCharPos = FX_Alloc(FX_FLOAT, nChars - 1);
+    FXSYS_memcpy32(m_pCharPos, pCharPos, sizeof(FX_FLOAT) * (nChars - 1));
+  }
+  RecalcPositionData();
+}
+void CPDF_TextObject::SetTextState(CPDF_TextState TextState) {
+  m_TextState = TextState;
+  CalcPositionData(NULL, NULL, 0);
+}
+CPDF_ShadingObject::CPDF_ShadingObject() {
+  m_pShading = NULL;
+  m_Type = PDFPAGE_SHADING;
+}
+CPDF_ShadingObject::~CPDF_ShadingObject() {
+  CPDF_ShadingPattern* pShading = m_pShading;
+  if (pShading && pShading->m_pDocument) {
+    pShading->m_pDocument->GetPageData()->ReleasePattern(
+        pShading->m_pShadingObj);
+  }
+}
+void CPDF_ShadingObject::CopyData(const CPDF_PageObject* pSrc) {
+  CPDF_ShadingObject* pSrcObj = (CPDF_ShadingObject*)pSrc;
+  m_pShading = pSrcObj->m_pShading;
+  if (m_pShading && m_pShading->m_pDocument) {
+    CPDF_DocPageData* pDocPageData = m_pShading->m_pDocument->GetPageData();
+    m_pShading = (CPDF_ShadingPattern*)pDocPageData->GetPattern(
+        m_pShading->m_pShadingObj,
+        m_pShading->m_bShadingObj,
+        &m_pShading->m_ParentMatrix);
+  }
+  m_Matrix = pSrcObj->m_Matrix;
+}
+void CPDF_ShadingObject::Transform(const CFX_AffineMatrix& matrix) {
+  if (!m_ClipPath.IsNull()) {
     m_ClipPath.GetModify();
     m_ClipPath.Transform(matrix);
-}
-void CPDF_PageObject::TransformGeneralState(CFX_AffineMatrix& matrix)
-{
-    if(m_GeneralState.IsNull()) {
-        return;
-    }
-    CPDF_GeneralStateData* pGS = m_GeneralState.GetModify();
-    pGS->m_Matrix.Concat(matrix);
-}
-FX_RECT CPDF_PageObject::GetBBox(const CFX_AffineMatrix* pMatrix) const
-{
-    CFX_FloatRect rect(m_Left, m_Bottom, m_Right, m_Top);
-    if (pMatrix) {
-        pMatrix->TransformRect(rect);
-    }
-    return rect.GetOutterRect();
-}
-CPDF_TextObject::CPDF_TextObject()
-{
-    m_Type = PDFPAGE_TEXT;
-    m_pCharCodes = NULL;
-    m_pCharPos = NULL;
-    m_nChars = 0;
-    m_PosX = m_PosY = 0;
-}
-CPDF_TextObject::~CPDF_TextObject()
-{
-    if (m_nChars > 1 && m_pCharCodes) {
-        FX_Free(m_pCharCodes);
-    }
-    if (m_pCharPos) {
-        FX_Free(m_pCharPos);
-    }
-}
-void CPDF_TextObject::GetItemInfo(int index, CPDF_TextObjectItem* pInfo) const
-{
-    pInfo->m_CharCode = m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR)m_pCharCodes : m_pCharCodes[index];
-    pInfo->m_OriginX = index ? m_pCharPos[index - 1] : 0;
-    pInfo->m_OriginY = 0;
-    if (pInfo->m_CharCode == -1) {
-        return;
-    }
-    CPDF_Font* pFont = m_TextState.GetFont();
-    if (pFont->GetFontType() != PDFFONT_CIDFONT) {
-        return;
-    }
-    if (!((CPDF_CIDFont*)pFont)->IsVertWriting()) {
-        return;
-    }
-    FX_WORD CID = ((CPDF_CIDFont*)pFont)->CIDFromCharCode(pInfo->m_CharCode);
-    pInfo->m_OriginY = pInfo->m_OriginX;
-    pInfo->m_OriginX = 0;
-    short vx, vy;
-    ((CPDF_CIDFont*)pFont)->GetVertOrigin(CID, vx, vy);
-    FX_FLOAT fontsize = m_TextState.GetFontSize();
-    pInfo->m_OriginX -= fontsize * vx / 1000;
-    pInfo->m_OriginY -= fontsize * vy / 1000;
-}
-int CPDF_TextObject::CountChars() const
-{
-    if (m_nChars == 1) {
-        return 1;
-    }
-    int count = 0;
-    for (int i = 0; i < m_nChars; i ++)
-        if (m_pCharCodes[i] != (FX_DWORD) - 1) {
-            count ++;
-        }
-    return count;
-}
-void CPDF_TextObject::GetCharInfo(int index, FX_DWORD& charcode, FX_FLOAT& kerning) const
-{
-    if (m_nChars == 1) {
-        charcode = (FX_DWORD)(FX_UINTPTR)m_pCharCodes;
-        kerning = 0;
-        return;
-    }
-    int count = 0;
-    for (int i = 0; i < m_nChars; i ++) {
-        if (m_pCharCodes[i] != (FX_DWORD) - 1) {
-            if (count == index) {
-                charcode = m_pCharCodes[i];
-                if (i == m_nChars - 1 || m_pCharCodes[i + 1] != (FX_DWORD) - 1) {
-                    kerning = 0;
-                } else {
-                    kerning = m_pCharPos[i];
-                }
-                return;
-            }
-            count ++;
-        }
-    }
-}
-void CPDF_TextObject::GetCharInfo(int index, CPDF_TextObjectItem* pInfo) const
-{
-    if (m_nChars == 1) {
-        GetItemInfo(0, pInfo);
-        return;
-    }
-    int count = 0;
-    for (int i = 0; i < m_nChars; i ++) {
-        FX_DWORD charcode = m_pCharCodes[i];
-        if (charcode == (FX_DWORD) - 1) {
-            continue;
-        }
-        if (count == index) {
-            GetItemInfo(i, pInfo);
-            break;
-        }
-        count ++;
-    }
-}
-void CPDF_TextObject::CopyData(const CPDF_PageObject* pSrc)
-{
-    const CPDF_TextObject* pSrcObj = (const CPDF_TextObject*)pSrc;
-    if (m_nChars > 1 && m_pCharCodes) {
-        FX_Free(m_pCharCodes);
-        m_pCharCodes = NULL;
-    }
-    if (m_pCharPos) {
-        FX_Free(m_pCharPos);
-        m_pCharPos = NULL;
-    }
-    m_nChars = pSrcObj->m_nChars;
-    if (m_nChars > 1) {
-        m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
-        m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
-        int i;
-        for (i = 0; i < m_nChars; i ++) {
-            m_pCharCodes[i] = pSrcObj->m_pCharCodes[i];
-        }
-        for (i = 0; i < m_nChars - 1; i ++) {
-            m_pCharPos[i] = pSrcObj->m_pCharPos[i];
-        }
-    } else {
-        m_pCharCodes = pSrcObj->m_pCharCodes;
-    }
-    m_PosX = pSrcObj->m_PosX;
-    m_PosY = pSrcObj->m_PosY;
-}
-void CPDF_TextObject::GetTextMatrix(CFX_AffineMatrix* pMatrix) const
-{
-    FX_FLOAT* pTextMatrix = m_TextState.GetMatrix();
-    pMatrix->Set(pTextMatrix[0], pTextMatrix[2], pTextMatrix[1], pTextMatrix[3], m_PosX, m_PosY);
-}
-void CPDF_TextObject::SetSegments(const CFX_ByteString* pStrs, FX_FLOAT* pKerning, int nsegs)
-{
-    if (m_nChars > 1 && m_pCharCodes) {
-        FX_Free(m_pCharCodes);
-        m_pCharCodes = NULL;
-    }
-    if (m_pCharPos) {
-        FX_Free(m_pCharPos);
-        m_pCharPos = NULL;
-    }
-    CPDF_Font* pFont = m_TextState.GetFont();
-    m_nChars = 0;
-    for (int i = 0; i < nsegs; i ++) {
-        m_nChars += pFont->CountChar(pStrs[i], pStrs[i].GetLength());
-    }
-    m_nChars += nsegs - 1;
-    if (m_nChars > 1) {
-        m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
-        m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
-        int index = 0;
-        for (int i = 0; i < nsegs; i ++) {
-            FX_LPCSTR segment = pStrs[i];
-            int offset = 0, len = pStrs[i].GetLength();
-            while (offset < len) {
-                m_pCharCodes[index++] = pFont->GetNextChar(segment, offset);
-            }
-            if (i != nsegs - 1) {
-                m_pCharPos[index - 1] = pKerning[i];
-                m_pCharCodes[index ++] = (FX_DWORD) - 1;
-            }
-        }
-    } else {
-        int offset = 0;
-        m_pCharCodes = (FX_DWORD*)(FX_UINTPTR)pFont->GetNextChar(pStrs[0], offset);
-    }
-}
-void CPDF_TextObject::SetText(const CFX_ByteString& str)
-{
-    SetSegments(&str, NULL, 1);
-    RecalcPositionData();
-}
-void CPDF_TextObject::SetEmpty()
-{
-    if (m_nChars > 1 && m_pCharCodes) {
-        FX_Free(m_pCharCodes);
-    }
-    if (m_nChars > 1 && m_pCharPos) {
-        FX_Free(m_pCharPos);
-    }
-    m_nChars = 0;
-    m_pCharCodes = NULL;
-    m_pCharPos = NULL;
-    m_Left = m_Right = m_PosX;
-    m_Top = m_Bottom = m_PosY;
-}
-void CPDF_TextObject::SetText(CFX_ByteString* pStrs, FX_FLOAT* pKerning, int nSegs)
-{
-    SetSegments(pStrs, pKerning, nSegs);
-    RecalcPositionData();
-}
-void CPDF_TextObject::SetText(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pKernings)
-{
-    if (m_nChars > 1 && m_pCharCodes) {
-        FX_Free(m_pCharCodes);
-        m_pCharCodes = NULL;
-    }
-    if (m_pCharPos) {
-        FX_Free(m_pCharPos);
-        m_pCharPos = NULL;
-    }
-    int nKernings = 0;
-    int i;
-    for (i = 0; i < nChars - 1; i ++)
-        if (pKernings[i] != 0) {
-            nKernings ++;
-        }
-    m_nChars = nChars + nKernings;
-    if (m_nChars > 1) {
-        m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
-        m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
-        int index = 0;
-        for (int i = 0; i < nChars; i ++) {
-            m_pCharCodes[index++] = pCharCodes[i];
-            if (pKernings[i] != 0 && i != nChars - 1) {
-                m_pCharCodes[index] = (FX_DWORD) - 1;
-                m_pCharPos[index - 1] = pKernings[i];
-                index ++;
-            }
-        }
-    } else {
-        m_pCharCodes = (FX_DWORD*)(FX_UINTPTR)pCharCodes[0];
-    }
-    RecalcPositionData();
-}
-FX_FLOAT CPDF_TextObject::GetCharWidth(FX_DWORD charcode) const
-{
-    FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
-    CPDF_Font* pFont = m_TextState.GetFont();
-    FX_BOOL bVertWriting = FALSE;
-    CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
-    if (pCIDFont) {
-        bVertWriting = pCIDFont->IsVertWriting();
-    }
-    if (!bVertWriting) {
-        return pFont->GetCharWidthF(charcode, 0) * fontsize;
-    } else {
-        FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
-        return pCIDFont->GetVertWidth(CID) * fontsize;
-    }
-}
-FX_FLOAT CPDF_TextObject::GetSpaceCharWidth() const
-{
-    CPDF_Font* pFont = m_TextState.GetFont();
-    FX_DWORD charCode = m_TextState.GetFont()->CharCodeFromUnicode(32);
-    if (charCode != (FX_DWORD) - 1) {
-        return GetCharWidth(charCode);
-    }
-    FX_FLOAT fontSize = m_TextState.GetFontSize() / 4000.0f;
-    FX_BOOL bVertWriting = FALSE;
-    CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
-    if (pCIDFont) {
-        bVertWriting = pCIDFont->IsVertWriting();
-    }
-    FX_RECT fontRect;
-    pFont->GetFontBBox(fontRect);
-    fontSize *= bVertWriting ? (FX_FLOAT)fontRect.Height() : (FX_FLOAT)fontRect.Width();
-    return fontSize;
-}
-void CPDF_TextObject::GetCharRect(int index, CFX_FloatRect& rect) const
-{
-    CPDF_Font* pFont = m_TextState.GetFont();
-    FX_BOOL bVertWriting = FALSE;
-    CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
-    if (pCIDFont) {
-        bVertWriting = pCIDFont->IsVertWriting();
-    }
-    FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
-    int count = 0;
-    for (int i = 0; i < m_nChars; i ++) {
-        FX_DWORD charcode = m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR)m_pCharCodes : m_pCharCodes[i];
-        if (charcode == (FX_DWORD) - 1) {
-            continue;
-        }
-        if( count != index) {
-            count++;
-            continue;
-        }
-        FX_FLOAT curpos = i > 0 ? m_pCharPos[i - 1] : 0;
-        FX_RECT char_rect;
-        pFont->GetCharBBox(charcode, char_rect, 0);
-        if (!bVertWriting) {
-            rect.left = curpos + char_rect.left * fontsize;
-            rect.right = curpos + char_rect.right * fontsize;
-            rect.top = char_rect.top * fontsize;
-            rect.bottom = char_rect.bottom * fontsize;
-        } else {
-            FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
-            short vx, vy;
-            pCIDFont->GetVertOrigin(CID, vx, vy);
-            char_rect.left -= vx;
-            char_rect.right -= vx;
-            char_rect.top -= vy;
-            char_rect.bottom -= vy;
-            rect.left = char_rect.left * fontsize;
-            rect.right = char_rect.right * fontsize;
-            rect.top = curpos + char_rect.top * fontsize;
-            rect.bottom = curpos + char_rect.bottom * fontsize;
-        }
-        return;
-    }
-}
-void CPDF_TextObject::CalcPositionData(FX_FLOAT* pTextAdvanceX, FX_FLOAT* pTextAdvanceY, FX_FLOAT horz_scale, int level)
-{
-    FX_FLOAT curpos = 0;
-    FX_FLOAT min_x = 10000 * 1.0f, max_x = -10000 * 1.0f, min_y = 10000 * 1.0f, max_y = -10000 * 1.0f;
-    CPDF_Font* pFont = m_TextState.GetFont();
-    FX_BOOL bVertWriting = FALSE;
-    CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
-    if (pCIDFont) {
-        bVertWriting = pCIDFont->IsVertWriting();
-    }
-    FX_FLOAT fontsize = m_TextState.GetFontSize();
-    for (int i = 0; i < m_nChars; i ++) {
-        FX_DWORD charcode = m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR)m_pCharCodes : m_pCharCodes[i];
-        if (charcode == (FX_DWORD) - 1) {
-            curpos -= FXSYS_Mul(m_pCharPos[i - 1], fontsize) / 1000;
-            continue;
-        }
-        if (i) {
-            m_pCharPos[i - 1] = curpos;
-        }
-        FX_RECT char_rect;
-        pFont->GetCharBBox(charcode, char_rect, level);
-        FX_FLOAT charwidth;
-        if (!bVertWriting) {
-            if (min_y > char_rect.top) {
-                min_y = (FX_FLOAT)char_rect.top;
-            }
-            if (max_y < char_rect.top) {
-                max_y = (FX_FLOAT)char_rect.top;
-            }
-            if (min_y > char_rect.bottom) {
-                min_y = (FX_FLOAT)char_rect.bottom;
-            }
-            if (max_y < char_rect.bottom) {
-                max_y = (FX_FLOAT)char_rect.bottom;
-            }
-            FX_FLOAT char_left = curpos + char_rect.left * fontsize / 1000;
-            FX_FLOAT char_right = curpos + char_rect.right * fontsize / 1000;
-            if (min_x > char_left) {
-                min_x = char_left;
-            }
-            if (max_x < char_left) {
-                max_x = char_left;
-            }
-            if (min_x > char_right) {
-                min_x = char_right;
-            }
-            if (max_x < char_right) {
-                max_x = char_right;
-            }
-            charwidth = pFont->GetCharWidthF(charcode, level) * fontsize / 1000;
-        } else {
-            FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
-            short vx, vy;
-            pCIDFont->GetVertOrigin(CID, vx, vy);
-            char_rect.left -= vx;
-            char_rect.right -= vx;
-            char_rect.top -= vy;
-            char_rect.bottom -= vy;
-            if (min_x > char_rect.left) {
-                min_x = (FX_FLOAT)char_rect.left;
-            }
-            if (max_x < char_rect.left) {
-                max_x = (FX_FLOAT)char_rect.left;
-            }
-            if (min_x > char_rect.right) {
-                min_x = (FX_FLOAT)char_rect.right;
-            }
-            if (max_x < char_rect.right) {
-                max_x = (FX_FLOAT)char_rect.right;
-            }
-            FX_FLOAT char_top = curpos + char_rect.top * fontsize / 1000;
-            FX_FLOAT char_bottom = curpos + char_rect.bottom * fontsize / 1000;
-            if (min_y > char_top) {
-                min_y = char_top;
-            }
-            if (max_y < char_top) {
-                max_y = char_top;
-            }
-            if (min_y > char_bottom) {
-                min_y = char_bottom;
-            }
-            if (max_y < char_bottom) {
-                max_y = char_bottom;
-            }
-            charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
-        }
-        curpos += charwidth;
-        if (charcode == ' ' && (pCIDFont == NULL || pCIDFont->GetCharSize(32) == 1)) {
-            curpos += m_TextState.GetObject()->m_WordSpace;
-        }
-        curpos += m_TextState.GetObject()->m_CharSpace;
-    }
-    if (bVertWriting) {
-        if (pTextAdvanceX) {
-            *pTextAdvanceX = 0;
-        }
-        if (pTextAdvanceY) {
-            *pTextAdvanceY = curpos;
-        }
-        min_x = min_x * fontsize / 1000;
-        max_x = max_x * fontsize / 1000;
-    } else {
-        if (pTextAdvanceX) {
-            *pTextAdvanceX = FXSYS_Mul(curpos, horz_scale);
-        }
-        if (pTextAdvanceY) {
-            *pTextAdvanceY = 0;
-        }
-        min_y = min_y * fontsize / 1000;
-        max_y = max_y * fontsize / 1000;
-    }
-    CFX_AffineMatrix matrix;
-    GetTextMatrix(&matrix);
-    m_Left = min_x;
-    m_Right = max_x;
-    m_Bottom = min_y;
-    m_Top = max_y;
+  }
+  m_Matrix.Concat(matrix);
+  if (!m_ClipPath.IsNull()) {
+    CalcBoundingBox();
+  } else {
     matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
-    int textmode = m_TextState.GetObject()->m_TextMode;
-    if (textmode == 1 || textmode == 2 || textmode == 5 || textmode == 6) {
-        FX_FLOAT half_width = m_GraphState.GetObject()->m_LineWidth / 2;
-        m_Left -= half_width;
-        m_Right += half_width;
-        m_Top += half_width;
-        m_Bottom -= half_width;
-    }
-}
-void CPDF_TextObject::CalcCharPos(FX_FLOAT* pPosArray) const
-{
-    CPDF_Font* pFont = m_TextState.GetFont();
-    FX_BOOL bVertWriting = FALSE;
-    CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
-    if (pCIDFont) {
-        bVertWriting = pCIDFont->IsVertWriting();
-    }
-    FX_FLOAT fontsize = m_TextState.GetFontSize();
-    int index = 0;
-    for (int i = 0; i < m_nChars; i ++) {
-        FX_DWORD charcode = m_nChars == 1 ? (FX_DWORD)(FX_UINTPTR)m_pCharCodes : m_pCharCodes[i];
-        if (charcode == (FX_DWORD) - 1) {
-            continue;
-        }
-        pPosArray[index++] = i ? m_pCharPos[i - 1] : 0;
-        FX_FLOAT charwidth;
-        if (bVertWriting) {
-            FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
-            charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
-        } else {
-            charwidth = pFont->GetCharWidthF(charcode) * fontsize / 1000;
-        }
-        pPosArray[index] = pPosArray[index - 1] + charwidth;
-        index++;
-    }
-}
-void CPDF_TextObject::Transform(const CFX_AffineMatrix& matrix)
-{
-    m_TextState.GetModify();
-    CFX_AffineMatrix text_matrix;
-    GetTextMatrix(&text_matrix);
-    text_matrix.Concat(matrix);
-    FX_FLOAT* pTextMatrix = m_TextState.GetMatrix();
-    pTextMatrix[0] = text_matrix.GetA();
-    pTextMatrix[1] = text_matrix.GetC();
-    pTextMatrix[2] = text_matrix.GetB();
-    pTextMatrix[3] = text_matrix.GetD();
-    m_PosX = text_matrix.GetE();
-    m_PosY = text_matrix.GetF();
-    CalcPositionData(NULL, NULL, 0);
-}
-void CPDF_TextObject::SetPosition(FX_FLOAT x, FX_FLOAT y)
-{
-    FX_FLOAT dx = x - m_PosX;
-    FX_FLOAT dy = y - m_PosY;
-    m_PosX = x;
-    m_PosY = y;
-    m_Left += dx;
-    m_Right += dx;
-    m_Top += dy;
-    m_Bottom += dy;
-}
-void CPDF_TextObject::SetData(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, FX_FLOAT x, FX_FLOAT y)
-{
-    ASSERT(m_nChars == 0);
-    m_nChars = nChars;
-    m_PosX = x;
-    m_PosY = y;
-    if (nChars == 0) {
-        return;
-    }
-    if (nChars == 1) {
-        m_pCharCodes = (FX_DWORD*)(FX_UINTPTR) * pCharCodes;
-    } else {
-        m_pCharCodes = FX_Alloc(FX_DWORD, nChars);
-        FXSYS_memcpy32(m_pCharCodes, pCharCodes, sizeof(FX_DWORD)*nChars);
-        m_pCharPos = FX_Alloc(FX_FLOAT, nChars - 1);
-        FXSYS_memcpy32(m_pCharPos, pCharPos, sizeof(FX_FLOAT) * (nChars - 1));
-    }
-    RecalcPositionData();
-}
-void CPDF_TextObject::SetTextState(CPDF_TextState TextState)
-{
-    m_TextState = TextState;
-    CalcPositionData(NULL, NULL, 0);
-}
-CPDF_ShadingObject::CPDF_ShadingObject()
-{
-    m_pShading = NULL;
-    m_Type = PDFPAGE_SHADING;
-}
-CPDF_ShadingObject::~CPDF_ShadingObject()
-{
-    CPDF_ShadingPattern* pShading = m_pShading;
-    if (pShading && pShading->m_pDocument) {
-        pShading->m_pDocument->GetPageData()->ReleasePattern(pShading->m_pShadingObj);
-    }
-}
-void CPDF_ShadingObject::CopyData(const CPDF_PageObject* pSrc)
-{
-    CPDF_ShadingObject* pSrcObj = (CPDF_ShadingObject*)pSrc;
-    m_pShading = pSrcObj->m_pShading;
-    if (m_pShading && m_pShading->m_pDocument) {
-        CPDF_DocPageData* pDocPageData = m_pShading->m_pDocument->GetPageData();
-        m_pShading = (CPDF_ShadingPattern*)pDocPageData->GetPattern(m_pShading->m_pShadingObj, m_pShading->m_bShadingObj, &m_pShading->m_ParentMatrix);
-    }
-    m_Matrix = pSrcObj->m_Matrix;
-}
-void CPDF_ShadingObject::Transform(const CFX_AffineMatrix& matrix)
-{
-    if (!m_ClipPath.IsNull()) {
-        m_ClipPath.GetModify();
-        m_ClipPath.Transform(matrix);
-    }
-    m_Matrix.Concat(matrix);
-    if (!m_ClipPath.IsNull()) {
-        CalcBoundingBox();
-    } else {
-        matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
-    }
-}
-void CPDF_ShadingObject::CalcBoundingBox()
-{
-    if (m_ClipPath.IsNull()) {
-        return;
-    }
-    CFX_FloatRect rect = m_ClipPath.GetClipBox();
-    m_Left = rect.left;
-    m_Bottom = rect.bottom;
-    m_Right = rect.right;
-    m_Top = rect.top;
-}
-CPDF_FormObject::~CPDF_FormObject()
-{
-    if (m_pForm) {
-        delete m_pForm;
-    }
-}
-void CPDF_FormObject::Transform(const CFX_AffineMatrix& matrix)
-{
-    m_FormMatrix.Concat(matrix);
-    CalcBoundingBox();
-}
-void CPDF_FormObject::CopyData(const CPDF_PageObject* pSrc)
-{
-    const CPDF_FormObject* pSrcObj = (const CPDF_FormObject*)pSrc;
-    if (m_pForm) {
-        delete m_pForm;
-    }
-    m_pForm = pSrcObj->m_pForm->Clone();
-    m_FormMatrix = pSrcObj->m_FormMatrix;
-}
-void CPDF_FormObject::CalcBoundingBox()
-{
-    CFX_FloatRect form_rect = m_pForm->CalcBoundingBox();
-    form_rect.Transform(&m_FormMatrix);
-    m_Left = form_rect.left;
-    m_Bottom = form_rect.bottom;
-    m_Right = form_rect.right;
-    m_Top = form_rect.top;
-}
-CPDF_PageObjects::CPDF_PageObjects(FX_BOOL bReleaseMembers) : m_ObjectList(128)
-{
-    m_bBackgroundAlphaNeeded = FALSE;
-    m_bReleaseMembers = bReleaseMembers;
-    m_ParseState = PDF_CONTENT_NOT_PARSED;
+  }
+}
+void CPDF_ShadingObject::CalcBoundingBox() {
+  if (m_ClipPath.IsNull()) {
+    return;
+  }
+  CFX_FloatRect rect = m_ClipPath.GetClipBox();
+  m_Left = rect.left;
+  m_Bottom = rect.bottom;
+  m_Right = rect.right;
+  m_Top = rect.top;
+}
+CPDF_FormObject::~CPDF_FormObject() {
+  if (m_pForm) {
+    delete m_pForm;
+  }
+}
+void CPDF_FormObject::Transform(const CFX_AffineMatrix& matrix) {
+  m_FormMatrix.Concat(matrix);
+  CalcBoundingBox();
+}
+void CPDF_FormObject::CopyData(const CPDF_PageObject* pSrc) {
+  const CPDF_FormObject* pSrcObj = (const CPDF_FormObject*)pSrc;
+  if (m_pForm) {
+    delete m_pForm;
+  }
+  m_pForm = pSrcObj->m_pForm->Clone();
+  m_FormMatrix = pSrcObj->m_FormMatrix;
+}
+void CPDF_FormObject::CalcBoundingBox() {
+  CFX_FloatRect form_rect = m_pForm->CalcBoundingBox();
+  form_rect.Transform(&m_FormMatrix);
+  m_Left = form_rect.left;
+  m_Bottom = form_rect.bottom;
+  m_Right = form_rect.right;
+  m_Top = form_rect.top;
+}
+CPDF_PageObjects::CPDF_PageObjects(FX_BOOL bReleaseMembers)
+    : m_ObjectList(128) {
+  m_bBackgroundAlphaNeeded = FALSE;
+  m_bReleaseMembers = bReleaseMembers;
+  m_ParseState = PDF_CONTENT_NOT_PARSED;
+  m_pParser = NULL;
+  m_pFormStream = NULL;
+  m_pResources = NULL;
+}
+CPDF_PageObjects::~CPDF_PageObjects() {
+  if (m_pParser) {
+    delete m_pParser;
+  }
+  if (!m_bReleaseMembers) {
+    return;
+  }
+  FX_POSITION pos = m_ObjectList.GetHeadPosition();
+  while (pos) {
+    CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
+    if (!pPageObj) {
+      continue;
+    }
+    pPageObj->Release();
+  }
+}
+void CPDF_PageObjects::ContinueParse(IFX_Pause* pPause) {
+  if (m_pParser == NULL) {
+    return;
+  }
+  m_pParser->Continue(pPause);
+  if (m_pParser->GetStatus() == CPDF_ContentParser::Done) {
+    m_ParseState = PDF_CONTENT_PARSED;
+    delete m_pParser;
     m_pParser = NULL;
-    m_pFormStream = NULL;
-    m_pResources = NULL;
-}
-CPDF_PageObjects::~CPDF_PageObjects()
-{
-    if (m_pParser) {
-        delete m_pParser;
-    }
-    if (!m_bReleaseMembers) {
-        return;
-    }
+  }
+}
+int CPDF_PageObjects::EstimateParseProgress() const {
+  if (m_pParser == NULL) {
+    return m_ParseState == PDF_CONTENT_PARSED ? 100 : 0;
+  }
+  return m_pParser->EstimateProgress();
+}
+FX_POSITION CPDF_PageObjects::InsertObject(FX_POSITION posInsertAfter,
+                                           CPDF_PageObject* pNewObject) {
+  if (posInsertAfter == NULL) {
+    return m_ObjectList.AddHead(pNewObject);
+  } else {
+    return m_ObjectList.InsertAfter(posInsertAfter, pNewObject);
+  }
+}
+int CPDF_PageObjects::GetObjectIndex(CPDF_PageObject* pObj) const {
+  int index = 0;
+  FX_POSITION pos = m_ObjectList.GetHeadPosition();
+  while (pos) {
+    CPDF_PageObject* pThisObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
+    if (pThisObj == pObj) {
+      return index;
+    }
+    index++;
+  }
+  return -1;
+}
+CPDF_PageObject* CPDF_PageObjects::GetObjectByIndex(int index) const {
+  FX_POSITION pos = m_ObjectList.FindIndex(index);
+  if (pos == NULL) {
+    return NULL;
+  }
+  return (CPDF_PageObject*)m_ObjectList.GetAt(pos);
+}
+void CPDF_PageObjects::Transform(const CFX_AffineMatrix& matrix) {
+  FX_POSITION pos = m_ObjectList.GetHeadPosition();
+  while (pos) {
+    CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
+    pObj->Transform(matrix);
+  }
+}
+CFX_FloatRect CPDF_PageObjects::CalcBoundingBox() const {
+  if (m_ObjectList.GetCount() == 0) {
+    return CFX_FloatRect(0, 0, 0, 0);
+  }
+  FX_FLOAT left, right, top, bottom;
+  left = bottom = 1000000 * 1.0f;
+  right = top = -1000000 * 1.0f;
+  FX_POSITION pos = m_ObjectList.GetHeadPosition();
+  while (pos) {
+    CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
+    if (left > pObj->m_Left) {
+      left = pObj->m_Left;
+    }
+    if (right < pObj->m_Right) {
+      right = pObj->m_Right;
+    }
+    if (top < pObj->m_Top) {
+      top = pObj->m_Top;
+    }
+    if (bottom > pObj->m_Bottom) {
+      bottom = pObj->m_Bottom;
+    }
+  }
+  return CFX_FloatRect(left, bottom, right, top);
+}
+void CPDF_PageObjects::LoadTransInfo() {
+  if (m_pFormDict == NULL) {
+    return;
+  }
+  CPDF_Dictionary* pGroup = m_pFormDict->GetDict(FX_BSTRC("Group"));
+  if (pGroup == NULL) {
+    return;
+  }
+  if (pGroup->GetString(FX_BSTRC("S")) != FX_BSTRC("Transparency")) {
+    return;
+  }
+  m_Transparency |= PDFTRANS_GROUP;
+  if (pGroup->GetInteger(FX_BSTRC("I"))) {
+    m_Transparency |= PDFTRANS_ISOLATED;
+  }
+  if (pGroup->GetInteger(FX_BSTRC("K"))) {
+    m_Transparency |= PDFTRANS_KNOCKOUT;
+  }
+}
+void CPDF_PageObjects::ClearCacheObjects() {
+  m_ParseState = PDF_CONTENT_NOT_PARSED;
+  if (m_pParser) {
+    delete m_pParser;
+  }
+  m_pParser = NULL;
+  if (m_bReleaseMembers) {
     FX_POSITION pos = m_ObjectList.GetHeadPosition();
     while (pos) {
-        CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
-        if (!pPageObj) {
-            continue;
-        }
-        pPageObj->Release();
-    }
-}
-void CPDF_PageObjects::ContinueParse(IFX_Pause* pPause)
-{
-    if (m_pParser == NULL) {
-        return;
-    }
-    m_pParser->Continue(pPause);
-    if (m_pParser->GetStatus() == CPDF_ContentParser::Done) {
-        m_ParseState = PDF_CONTENT_PARSED;
-        delete m_pParser;
-        m_pParser = NULL;
-    }
-}
-int CPDF_PageObjects::EstimateParseProgress() const
-{
-    if (m_pParser == NULL) {
-        return m_ParseState == PDF_CONTENT_PARSED ? 100 : 0;
-    }
-    return m_pParser->EstimateProgress();
-}
-FX_POSITION CPDF_PageObjects::InsertObject(FX_POSITION posInsertAfter, CPDF_PageObject* pNewObject)
-{
-    if (posInsertAfter == NULL) {
-        return m_ObjectList.AddHead(pNewObject);
-    } else {
-        return m_ObjectList.InsertAfter(posInsertAfter, pNewObject);
-    }
-}
-int CPDF_PageObjects::GetObjectIndex(CPDF_PageObject* pObj) const
-{
-    int index = 0;
-    FX_POSITION pos = m_ObjectList.GetHeadPosition();
-    while (pos) {
-        CPDF_PageObject* pThisObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
-        if (pThisObj == pObj) {
-            return index;
-        }
-        index ++;
-    }
-    return -1;
-}
-CPDF_PageObject* CPDF_PageObjects::GetObjectByIndex(int index) const
-{
-    FX_POSITION pos = m_ObjectList.FindIndex(index);
-    if (pos == NULL) {
-        return NULL;
-    }
-    return (CPDF_PageObject*)m_ObjectList.GetAt(pos);
-}
-void CPDF_PageObjects::Transform(const CFX_AffineMatrix& matrix)
-{
-    FX_POSITION pos = m_ObjectList.GetHeadPosition();
-    while (pos) {
-        CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
-        pObj->Transform(matrix);
-    }
-}
-CFX_FloatRect CPDF_PageObjects::CalcBoundingBox() const
-{
-    if (m_ObjectList.GetCount() == 0) {
-        return CFX_FloatRect(0, 0, 0, 0);
-    }
-    FX_FLOAT left, right, top, bottom;
-    left = bottom = 1000000 * 1.0f;
-    right = top = -1000000 * 1.0f;
-    FX_POSITION pos = m_ObjectList.GetHeadPosition();
-    while (pos) {
-        CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
-        if (left > pObj->m_Left) {
-            left = pObj->m_Left;
-        }
-        if (right < pObj->m_Right) {
-            right = pObj->m_Right;
-        }
-        if (top < pObj->m_Top) {
-            top = pObj->m_Top;
-        }
-        if (bottom > pObj->m_Bottom) {
-            bottom = pObj->m_Bottom;
-        }
-    }
-    return CFX_FloatRect(left, bottom, right, top);
-}
-void CPDF_PageObjects::LoadTransInfo()
-{
-    if (m_pFormDict == NULL) {
-        return;
-    }
-    CPDF_Dictionary* pGroup = m_pFormDict->GetDict(FX_BSTRC("Group"));
-    if (pGroup == NULL) {
-        return;
-    }
-    if (pGroup->GetString(FX_BSTRC("S")) != FX_BSTRC("Transparency")) {
-        return;
-    }
-    m_Transparency |= PDFTRANS_GROUP;
-    if (pGroup->GetInteger(FX_BSTRC("I"))) {
-        m_Transparency |= PDFTRANS_ISOLATED;
-    }
-    if (pGroup->GetInteger(FX_BSTRC("K"))) {
-        m_Transparency |= PDFTRANS_KNOCKOUT;
-    }
-}
-void CPDF_PageObjects::ClearCacheObjects()
-{
-    m_ParseState = PDF_CONTENT_NOT_PARSED;
-    if (m_pParser) {
-        delete m_pParser;
-    }
-    m_pParser = NULL;
-    if (m_bReleaseMembers) {
-        FX_POSITION pos = m_ObjectList.GetHeadPosition();
-        while (pos) {
-            CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
-            if (!pPageObj) {
-                continue;
-            }
-            pPageObj->Release();
-        }
-    }
-    m_ObjectList.RemoveAll();
-}
-CPDF_Page::CPDF_Page()
-{
-    m_pPageRender = NULL;
-}
-void CPDF_Page::Load(CPDF_Document* pDocument, CPDF_Dictionary* pPageDict, FX_BOOL bPageCache)
-{
-    m_pDocument = (CPDF_Document*)pDocument;
-    m_pFormDict = pPageDict;
-    if (bPageCache) {
-        m_pPageRender = CPDF_ModuleMgr::Get()->GetRenderModule()->CreatePageCache(this);
-    }
-    if (pPageDict == NULL) {
-        m_PageWidth = m_PageHeight = 100 * 1.0f;
-        m_pPageResources = m_pResources = NULL;
-        return;
-    }
-    CPDF_Object* pageAttr = GetPageAttr(FX_BSTRC("Resources"));
-    m_pResources = pageAttr ? pageAttr->GetDict() : NULL;
-    m_pPageResources = m_pResources;
-    CPDF_Object* pRotate = GetPageAttr(FX_BSTRC("Rotate"));
-    int rotate = 0;
-    if (pRotate) {
-        rotate = pRotate->GetInteger() / 90 % 4;
-    }
-    if (rotate < 0) {
-        rotate += 4;
-    }
-    CPDF_Array* pMediaBox, *pCropBox;
-    pMediaBox = (CPDF_Array*)GetPageAttr(FX_BSTRC("MediaBox"));
-    CFX_FloatRect mediabox;
-    if (pMediaBox) {
-        mediabox = pMediaBox->GetRect();
-        mediabox.Normalize();
-    }
-    if (mediabox.IsEmpty()) {
-        mediabox = CFX_FloatRect(0, 0, 612, 792);
-    }
-    pCropBox = (CPDF_Array*)GetPageAttr(FX_BSTRC("CropBox"));
-    if (pCropBox) {
-        m_BBox = pCropBox->GetRect();
-        m_BBox.Normalize();
-    }
-    if (m_BBox.IsEmpty()) {
-        m_BBox = mediabox;
-    } else {
-        m_BBox.Intersect(mediabox);
-    }
-    if (rotate % 2) {
-        m_PageHeight = m_BBox.right - m_BBox.left;
-        m_PageWidth = m_BBox.top - m_BBox.bottom;
-    } else {
-        m_PageWidth = m_BBox.right - m_BBox.left;
-        m_PageHeight = m_BBox.top - m_BBox.bottom;
-    }
-    switch (rotate) {
-        case 0:
-            m_PageMatrix.Set(1.0f, 0, 0, 1.0f, -m_BBox.left, -m_BBox.bottom);
-            break;
-        case 1:
-            m_PageMatrix.Set(0, -1.0f, 1.0f, 0, -m_BBox.bottom, m_BBox.right);
-            break;
-        case 2:
-            m_PageMatrix.Set(-1.0f, 0, 0, -1.0f, m_BBox.right, m_BBox.top);
-            break;
-        case 3:
-            m_PageMatrix.Set(0, 1.0f, -1.0f, 0, m_BBox.top, -m_BBox.left);
-            break;
-    }
-    m_Transparency = PDFTRANS_ISOLATED;
-    LoadTransInfo();
-}
-void CPDF_Page::StartParse(CPDF_ParseOptions* pOptions, FX_BOOL bReParse)
-{
-    if (bReParse) {
-        ClearCacheObjects();
-    }
-    if (m_ParseState == PDF_CONTENT_PARSED || m_ParseState == PDF_CONTENT_PARSING) {
-        return;
-    }
-    m_pParser = FX_NEW CPDF_ContentParser;
-    m_pParser->Start(this, pOptions);
-    m_ParseState = PDF_CONTENT_PARSING;
-}
-void CPDF_Page::ParseContent(CPDF_ParseOptions* pOptions, FX_BOOL bReParse)
-{
-    StartParse(pOptions, bReParse);
-    ContinueParse(NULL);
-}
-CPDF_Page::~CPDF_Page()
-{
-    if (m_pPageRender) {
-        CPDF_RenderModuleDef* pModule = CPDF_ModuleMgr::Get()->GetRenderModule();
-        pModule->DestroyPageCache(m_pPageRender);
-    }
-}
-CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, FX_BSTR name)
-{
-    int level = 0;
-    while (1) {
-        CPDF_Object* pObj = pPageDict->GetElementValue(name);
-        if (pObj) {
-            return pObj;
-        }
-        CPDF_Dictionary* pParent = pPageDict->GetDict(FX_BSTRC("Parent"));
-        if (!pParent || pParent == pPageDict) {
-            return NULL;
-        }
-        pPageDict = pParent;
-        level ++;
-        if (level == 1000) {
-            return NULL;
-        }
-    }
-}
-CPDF_Object* CPDF_Page::GetPageAttr(FX_BSTR name) const
-{
-    return FPDFAPI_GetPageAttr(m_pFormDict, name);
-}
-CPDF_Form::CPDF_Form(CPDF_Document* pDoc, CPDF_Dictionary* pPageResources, CPDF_Stream* pFormStream, CPDF_Dictionary* pParentResources)
-{
-    m_pDocument = pDoc;
-    m_pFormStream = pFormStream;
-    m_pFormDict = pFormStream ? pFormStream->GetDict() : NULL;
-    m_pResources = m_pFormDict->GetDict(FX_BSTRC("Resources"));
-    m_pPageResources = pPageResources;
-    if (m_pResources == NULL) {
-        m_pResources = pParentResources;
-    }
-    if (m_pResources == NULL) {
-        m_pResources = pPageResources;
-    }
-    m_Transparency = 0;
-    LoadTransInfo();
-}
-CPDF_Form::~CPDF_Form()
-{
-}
-void CPDF_Form::StartParse(CPDF_AllStates* pGraphicStates, CFX_AffineMatrix* pParentMatrix,
-                           CPDF_Type3Char* pType3Char, CPDF_ParseOptions* pOptions, int level)
-{
-    if (m_ParseState == PDF_CONTENT_PARSED || m_ParseState == PDF_CONTENT_PARSING) {
-        return;
-    }
-    m_pParser = FX_NEW CPDF_ContentParser;
-    m_pParser->Start(this, pGraphicStates, pParentMatrix, pType3Char, pOptions, level);
-    m_ParseState = PDF_CONTENT_PARSING;
-}
-void CPDF_Form::ParseContent(CPDF_AllStates* pGraphicStates, CFX_AffineMatrix* pParentMatrix,
-                             CPDF_Type3Char* pType3Char, CPDF_ParseOptions* pOptions, int level)
-{
-    StartParse(pGraphicStates, pParentMatrix, pType3Char, pOptions, level);
-    ContinueParse(NULL);
-}
-CPDF_Form* CPDF_Form::Clone() const
-{
-    CPDF_Form* pClone = FX_NEW CPDF_Form(m_pDocument, m_pPageResources, m_pFormStream, m_pResources);
-    FX_POSITION pos = m_ObjectList.GetHeadPosition();
-    while (pos) {
-        CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
-        pClone->m_ObjectList.AddTail(pObj->Clone());
-    }
-    return pClone;
-}
-void CPDF_Page::GetDisplayMatrix(CFX_AffineMatrix& matrix, int xPos, int yPos,
-                                 int xSize, int ySize, int iRotate) const
-{
-    if (m_PageWidth == 0 || m_PageHeight == 0) {
-        return;
-    }
-    CFX_AffineMatrix display_matrix;
-    int x0, y0, x1, y1, x2, y2;
-    iRotate %= 4;
-    switch (iRotate) {
-        case 0:
-            x0 = xPos;
-            y0 = yPos + ySize;
-            x1 = xPos;
-            y1 = yPos;
-            x2 = xPos + xSize;
-            y2 = yPos + ySize;
-            break;
-        case 1:
-            x0 = xPos;
-            y0 = yPos;
-            x1 = xPos + xSize;
-            y1 = yPos;
-            x2 = xPos;
-            y2 = yPos + ySize;
-            break;
-        case 2:
-            x0 = xPos + xSize;
-            y0 = yPos;
-            x1 = xPos + xSize;
-            y1 = yPos + ySize;
-            x2 = xPos;
-            y2 = yPos;
-            break;
-        case 3:
-            x0 = xPos + xSize;
-            y0 = yPos + ySize;
-            x1 = xPos;
-            y1 = yPos + ySize;
-            x2 = xPos + xSize;
-            y2 = yPos;
-            break;
-    }
-    display_matrix.Set(FXSYS_Div((FX_FLOAT)(x2 - x0), m_PageWidth),
-                       FXSYS_Div((FX_FLOAT)(y2 - y0), m_PageWidth),
-                       FXSYS_Div((FX_FLOAT)(x1 - x0), m_PageHeight),
-                       FXSYS_Div((FX_FLOAT)(y1 - y0), m_PageHeight),
-                       (FX_FLOAT)x0, (FX_FLOAT)y0);
-    matrix = m_PageMatrix;
-    matrix.Concat(display_matrix);
-}
-CPDF_ParseOptions::CPDF_ParseOptions()
-{
-    m_bTextOnly = FALSE;
-    m_bMarkedContent = TRUE;
-    m_bSeparateForm = TRUE;
-    m_bDecodeInlineImage = FALSE;
-}
+      CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
+      if (!pPageObj) {
+        continue;
+      }
+      pPageObj->Release();
+    }
+  }
+  m_ObjectList.RemoveAll();
+}
+CPDF_Page::CPDF_Page() {
+  m_pPageRender = NULL;
+}
+void CPDF_Page::Load(CPDF_Document* pDocument,
+                     CPDF_Dictionary* pPageDict,
+                     FX_BOOL bPageCache) {
+  m_pDocument = (CPDF_Document*)pDocument;
+  m_pFormDict = pPageDict;
+  if (bPageCache) {
+    m_pPageRender =
+        CPDF_ModuleMgr::Get()->GetRenderModule()->CreatePageCache(this);
+  }
+  if (pPageDict == NULL) {
+    m_PageWidth = m_PageHeight = 100 * 1.0f;
+    m_pPageResources = m_pResources = NULL;
+    return;
+  }
+  CPDF_Object* pageAttr = GetPageAttr(FX_BSTRC("Resources"));
+  m_pResources = pageAttr ? pageAttr->GetDict() : NULL;
+  m_pPageResources = m_pResources;
+  CPDF_Object* pRotate = GetPageAttr(FX_BSTRC("Rotate"));
+  int rotate = 0;
+  if (pRotate) {
+    rotate = pRotate->GetInteger() / 90 % 4;
+  }
+  if (rotate < 0) {
+    rotate += 4;
+  }
+  CPDF_Array* pMediaBox, *pCropBox;
+  pMediaBox = (CPDF_Array*)GetPageAttr(FX_BSTRC("MediaBox"));
+  CFX_FloatRect mediabox;
+  if (pMediaBox) {
+    mediabox = pMediaBox->GetRect();
+    mediabox.Normalize();
+  }
+  if (mediabox.IsEmpty()) {
+    mediabox = CFX_FloatRect(0, 0, 612, 792);
+  }
+  pCropBox = (CPDF_Array*)GetPageAttr(FX_BSTRC("CropBox"));
+  if (pCropBox) {
+    m_BBox = pCropBox->GetRect();
+    m_BBox.Normalize();
+  }
+  if (m_BBox.IsEmpty()) {
+    m_BBox = mediabox;
+  } else {
+    m_BBox.Intersect(mediabox);
+  }
+  if (rotate % 2) {
+    m_PageHeight = m_BBox.right - m_BBox.left;
+    m_PageWidth = m_BBox.top - m_BBox.bottom;
+  } else {
+    m_PageWidth = m_BBox.right - m_BBox.left;
+    m_PageHeight = m_BBox.top - m_BBox.bottom;
+  }
+  switch (rotate) {
+    case 0:
+      m_PageMatrix.Set(1.0f, 0, 0, 1.0f, -m_BBox.left, -m_BBox.bottom);
+      break;
+    case 1:
+      m_PageMatrix.Set(0, -1.0f, 1.0f, 0, -m_BBox.bottom, m_BBox.right);
+      break;
+    case 2:
+      m_PageMatrix.Set(-1.0f, 0, 0, -1.0f, m_BBox.right, m_BBox.top);
+      break;
+    case 3:
+      m_PageMatrix.Set(0, 1.0f, -1.0f, 0, m_BBox.top, -m_BBox.left);
+      break;
+  }
+  m_Transparency = PDFTRANS_ISOLATED;
+  LoadTransInfo();
+}
+void CPDF_Page::StartParse(CPDF_ParseOptions* pOptions, FX_BOOL bReParse) {
+  if (bReParse) {
+    ClearCacheObjects();
+  }
+  if (m_ParseState == PDF_CONTENT_PARSED ||
+      m_ParseState == PDF_CONTENT_PARSING) {
+    return;
+  }
+  m_pParser = FX_NEW CPDF_ContentParser;
+  m_pParser->Start(this, pOptions);
+  m_ParseState = PDF_CONTENT_PARSING;
+}
+void CPDF_Page::ParseContent(CPDF_ParseOptions* pOptions, FX_BOOL bReParse) {
+  StartParse(pOptions, bReParse);
+  ContinueParse(NULL);
+}
+CPDF_Page::~CPDF_Page() {
+  if (m_pPageRender) {
+    CPDF_RenderModuleDef* pModule = CPDF_ModuleMgr::Get()->GetRenderModule();
+    pModule->DestroyPageCache(m_pPageRender);
+  }
+}
+CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, FX_BSTR name) {
+  int level = 0;
+  while (1) {
+    CPDF_Object* pObj = pPageDict->GetElementValue(name);
+    if (pObj) {
+      return pObj;
+    }
+    CPDF_Dictionary* pParent = pPageDict->GetDict(FX_BSTRC("Parent"));
+    if (!pParent || pParent == pPageDict) {
+      return NULL;
+    }
+    pPageDict = pParent;
+    level++;
+    if (level == 1000) {
+      return NULL;
+    }
+  }
+}
+CPDF_Object* CPDF_Page::GetPageAttr(FX_BSTR name) const {
+  return FPDFAPI_GetPageAttr(m_pFormDict, name);
+}
+CPDF_Form::CPDF_Form(CPDF_Document* pDoc,
+                     CPDF_Dictionary* pPageResources,
+                     CPDF_Stream* pFormStream,
+                     CPDF_Dictionary* pParentResources) {
+  m_pDocument = pDoc;
+  m_pFormStream = pFormStream;
+  m_pFormDict = pFormStream ? pFormStream->GetDict() : NULL;
+  m_pResources = m_pFormDict->GetDict(FX_BSTRC("Resources"));
+  m_pPageResources = pPageResources;
+  if (m_pResources == NULL) {
+    m_pResources = pParentResources;
+  }
+  if (m_pResources == NULL) {
+    m_pResources = pPageResources;
+  }
+  m_Transparency = 0;
+  LoadTransInfo();
+}
+CPDF_Form::~CPDF_Form() {
+}
+void CPDF_Form::StartParse(CPDF_AllStates* pGraphicStates,
+                           CFX_AffineMatrix* pParentMatrix,
+                           CPDF_Type3Char* pType3Char,
+                           CPDF_ParseOptions* pOptions,
+                           int level) {
+  if (m_ParseState == PDF_CONTENT_PARSED ||
+      m_ParseState == PDF_CONTENT_PARSING) {
+    return;
+  }
+  m_pParser = FX_NEW CPDF_ContentParser;
+  m_pParser->Start(
+      this, pGraphicStates, pParentMatrix, pType3Char, pOptions, level);
+  m_ParseState = PDF_CONTENT_PARSING;
+}
+void CPDF_Form::ParseContent(CPDF_AllStates* pGraphicStates,
+                             CFX_AffineMatrix* pParentMatrix,
+                             CPDF_Type3Char* pType3Char,
+                             CPDF_ParseOptions* pOptions,
+                             int level) {
+  StartParse(pGraphicStates, pParentMatrix, pType3Char, pOptions, level);
+  ContinueParse(NULL);
+}
+CPDF_Form* CPDF_Form::Clone() const {
+  CPDF_Form* pClone = FX_NEW CPDF_Form(
+      m_pDocument, m_pPageResources, m_pFormStream, m_pResources);
+  FX_POSITION pos = m_ObjectList.GetHeadPosition();
+  while (pos) {
+    CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
+    pClone->m_ObjectList.AddTail(pObj->Clone());
+  }
+  return pClone;
+}
+void CPDF_Page::GetDisplayMatrix(CFX_AffineMatrix& matrix,
+                                 int xPos,
+                                 int yPos,
+                                 int xSize,
+                                 int ySize,
+                                 int iRotate) const {
+  if (m_PageWidth == 0 || m_PageHeight == 0) {
+    return;
+  }
+  CFX_AffineMatrix display_matrix;
+  int x0, y0, x1, y1, x2, y2;
+  iRotate %= 4;
+  switch (iRotate) {
+    case 0:
+      x0 = xPos;
+      y0 = yPos + ySize;
+      x1 = xPos;
+      y1 = yPos;
+      x2 = xPos + xSize;
+      y2 = yPos + ySize;
+      break;
+    case 1:
+      x0 = xPos;
+      y0 = yPos;
+      x1 = xPos + xSize;
+      y1 = yPos;
+      x2 = xPos;
+      y2 = yPos + ySize;
+      break;
+    case 2:
+      x0 = xPos + xSize;
+      y0 = yPos;
+      x1 = xPos + xSize;
+      y1 = yPos + ySize;
+      x2 = xPos;
+      y2 = yPos;
+      break;
+    case 3:
+      x0 = xPos + xSize;
+      y0 = yPos + ySize;
+      x1 = xPos;
+      y1 = yPos + ySize;
+      x2 = xPos + xSize;
+      y2 = yPos;
+      break;
+  }
+  display_matrix.Set(FXSYS_Div((FX_FLOAT)(x2 - x0), m_PageWidth),
+                     FXSYS_Div((FX_FLOAT)(y2 - y0), m_PageWidth),
+                     FXSYS_Div((FX_FLOAT)(x1 - x0), m_PageHeight),
+                     FXSYS_Div((FX_FLOAT)(y1 - y0), m_PageHeight),
+                     (FX_FLOAT)x0,
+                     (FX_FLOAT)y0);
+  matrix = m_PageMatrix;
+  matrix.Concat(display_matrix);
+}
+CPDF_ParseOptions::CPDF_ParseOptions() {
+  m_bTextOnly = FALSE;
+  m_bMarkedContent = TRUE;
+  m_bSeparateForm = TRUE;
+  m_bDecodeInlineImage = FALSE;
+}