Fix initial kerning when there is a horzscale set

core/fpdfapi/page/cpdf_streamcontentparser.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/page/cpdf_streamcontentparser.h"
 
 #include <memory>
 #include <utility>
@@ skipping 1253 matching lines @@
                                              FX_FLOAT fInitKerning,
                                              FX_FLOAT* pKerning,
                                              int nsegs) {
   CPDF_Font* pFont = m_pCurStates->m_TextState.GetFont();
   if (!pFont) {
     return;
   }
   if (fInitKerning != 0) {
     if (!pFont->IsVertWriting()) {
       m_pCurStates->m_TextX -=
-          (fInitKerning * m_pCurStates->m_TextState.GetFontSize()) / 1000;
+          (fInitKerning * m_pCurStates->m_TextState.GetFontSize() *
+           m_pCurStates->m_TextHorzScale) /
+          1000;
     } else {
       m_pCurStates->m_TextY -=
           (fInitKerning * m_pCurStates->m_TextState.GetFontSize()) / 1000;
     }
   }
   if (nsegs == 0) {
     return;
   }
   const TextRenderingMode text_mode =
       pFont->IsType3Font() ? TextRenderingMode::MODE_FILL
@@ skipping 21 matching lines @@
     m_pCurStates->m_TextY += y_advance;
     if (TextRenderingModeIsClipMode(text_mode)) {
       m_ClipTextList.push_back(
           std::unique_ptr<CPDF_TextObject>(pText->Clone()));
     }
     m_pObjectHolder->GetPageObjectList()->push_back(std::move(pText));
   }
   if (pKerning && pKerning[nsegs - 1] != 0) {
     if (!pFont->IsVertWriting()) {
       m_pCurStates->m_TextX -=
-          (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize()) /
+          (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize() *
+           m_pCurStates->m_TextHorzScale) /
           1000;
     } else {
       m_pCurStates->m_TextY -=
           (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize()) /
           1000;
     }
   }
 }
 
 void CPDF_StreamContentParser::Handle_ShowText() {
@@ skipping 11 matching lines @@
 
   size_t n = pArray->GetCount();
   size_t nsegs = 0;
   for (size_t i = 0; i < n; i++) {
     if (pArray->GetDirectObjectAt(i)->IsString())
       nsegs++;
   }
   if (nsegs == 0) {
     for (size_t i = 0; i < n; i++) {
       m_pCurStates->m_TextX -=
-          (pArray->GetNumberAt(i) * m_pCurStates->m_TextState.GetFontSize()) /
+          (pArray->GetNumberAt(i) * m_pCurStates->m_TextState.GetFontSize() *
+           m_pCurStates->m_TextHorzScale) /
           1000;
     }
     return;
   }
   CFX_ByteString* pStrs = new CFX_ByteString[nsegs];
   FX_FLOAT* pKerning = FX_Alloc(FX_FLOAT, nsegs);
   size_t iSegment = 0;
   FX_FLOAT fInitKerning = 0;
   for (size_t i = 0; i < n; i++) {
     CPDF_Object* pObj = pArray->GetDirectObjectAt(i);
@@ skipping 300 matching lines @@
     if (!bProcessed) {
       m_pSyntax->SetPos(last_pos);
       return;
     }
   }
 }
 
 CPDF_StreamContentParser::ContentParam::ContentParam() {}
 
 CPDF_StreamContentParser::ContentParam::~ContentParam() {}