Make code compile with clang_use_chrome_plugin (part I)

core/fpdfapi/fpdf_page/cpdf_textobject.cpp

 // Copyright 2016 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 "core/fpdfapi/fpdf_page/include/cpdf_textobject.h"
 
 #include "core/fpdfapi/fpdf_font/cpdf_cidfont.h"
 #include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
 
 CPDF_TextObject::CPDF_TextObject()
     : m_PosX(0),
       m_PosY(0),
       m_nChars(0),
       m_pCharCodes(nullptr),
       m_pCharPos(nullptr) {}
 
 CPDF_TextObject::~CPDF_TextObject() {
   if (m_nChars > 1) {
     FX_Free(m_pCharCodes);
   }
   FX_Free(m_pCharPos);
 }
 
+int CPDF_TextObject::CountItems() const {
+  return m_nChars;
+}
+
 void CPDF_TextObject::GetItemInfo(int index, CPDF_TextObjectItem* pInfo) const {
   pInfo->m_CharCode =
       m_nChars == 1 ? (uint32_t)(uintptr_t)m_pCharCodes : m_pCharCodes[index];
   pInfo->m_OriginX = index ? m_pCharPos[index - 1] : 0;
   pInfo->m_OriginY = 0;
   if (pInfo->m_CharCode == CPDF_Font::kInvalidCharCode) {
     return;
   }
   CPDF_Font* pFont = m_TextState.GetFont();
   if (!pFont->IsCIDFont()) {
@@ skipping 81 matching lines @@
     FXSYS_memcpy(obj->m_pCharPos, m_pCharPos,
                  (m_nChars - 1) * sizeof(FX_FLOAT));
   } else {
     obj->m_pCharCodes = m_pCharCodes;
   }
   obj->m_PosX = m_PosX;
   obj->m_PosY = m_PosY;
   return obj;
 }
 
+CPDF_PageObject::Type CPDF_TextObject::GetType() const {
+  return TEXT;
+}
+
+void CPDF_TextObject::Transform(const CFX_Matrix& matrix) {
+  m_TextState.GetModify();
+  CFX_Matrix 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(nullptr, nullptr, 0);
+}
+
+bool CPDF_TextObject::IsText() const {
+  return true;
+}
+
+CPDF_TextObject* CPDF_TextObject::AsText() {
+  return this;
+}
+
+const CPDF_TextObject* CPDF_TextObject::AsText() const {
+  return this;
+}
+
 void CPDF_TextObject::GetTextMatrix(CFX_Matrix* 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) {
@@ skipping 44 matching lines @@
   if (pCIDFont) {
     bVertWriting = pCIDFont->IsVertWriting();
   }
   if (!bVertWriting)
     return pFont->GetCharWidthF(charcode, 0) * fontsize;
 
   uint16_t CID = pCIDFont->CIDFromCharCode(charcode);
   return pCIDFont->GetVertWidth(CID) * fontsize;
 }
 
+FX_FLOAT CPDF_TextObject::GetPosX() const {
+  return m_PosX;
+}
+
+FX_FLOAT CPDF_TextObject::GetPosY() const {
+  return m_PosY;
+}
+
+CPDF_Font* CPDF_TextObject::GetFont() const {
+  return m_TextState.GetFont();
+}
+
+FX_FLOAT CPDF_TextObject::GetFontSize() const {
+  return m_TextState.GetFontSize();
+}
+
 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;
   FX_FLOAT max_x = -10000 * 1.0f;
   FX_FLOAT min_y = 10000 * 1.0f;
   FX_FLOAT max_y = -10000 * 1.0f;
   CPDF_Font* pFont = m_TextState.GetFont();
@@ skipping 114 matching lines @@
   matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
   if (TextRenderingModeIsStrokeMode(m_TextState.GetObject()->m_TextMode)) {
     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::Transform(const CFX_Matrix& matrix) {
-  m_TextState.GetModify();
-  CFX_Matrix 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(nullptr, nullptr, 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::RecalcPositionData() {
+  CalcPositionData(nullptr, nullptr, 1);
+}