CPDF_VariableText::m_nHorzScale is always 100

Remove the member and simplify logic in all the places this
is passed.

Change-Id: I39b979793fe84f0dc460261223655dd7f50555cc
Reviewed-on: https://pdfium-review.googlesource.com/c/43474
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>

3 files changed, 10 insertions, 35 deletions

diff --git a/fpdfsdk/pwl/cpwl_appstream.cpp b/fpdfsdk/pwl/cpwl_appstream.cpp
index 4175b8ef2a..aa007b8d6f 100644
--- a/fpdfsdk/pwl/cpwl_appstream.cpp
+++ b/fpdfsdk/pwl/cpwl_appstream.cpp
@@ -68,7 +68,6 @@ const char kSetNonZeroWindingClipOperator[] = "W";
 const char kSetRGBOperator[] = "rg";
 const char kSetRGBStrokedOperator[] = "RG";
 const char kSetTextFontAndSizeOperator[] = "Tf";
-const char kSetTextScaleHorizontalOperator[] = "Tz";
 const char kShowTextOperator[] = "Tj";
 const char kStateRestoreOperator[] = "Q";
 const char kStateSaveOperator[] = "q";
@@ -667,16 +666,9 @@ ByteString GetEditAppStream(CPWL_EditImpl* pEdit,
 
   std::ostringstream sAppStream;
   if (sEditStream.tellp() > 0) {
-    int32_t nHorzScale = pEdit->GetHorzScale();
-    if (nHorzScale != 100) {
-      sAppStream << nHorzScale << " " << kSetTextScaleHorizontalOperator
-                 << "\n";
-    }
-
     float fCharSpace = pEdit->GetCharSpace();
-    if (!IsFloatZero(fCharSpace)) {
+    if (!IsFloatZero(fCharSpace))
       sAppStream << fCharSpace << " " << kSetCharacterSpacingOperator << "\n";
-    }
 
     sAppStream << sEditStream.str();
   }
diff --git a/fpdfsdk/pwl/cpwl_edit_impl.cpp b/fpdfsdk/pwl/cpwl_edit_impl.cpp
index fb0e8afa16..c0eccfec8e 100644
--- a/fpdfsdk/pwl/cpwl_edit_impl.cpp
+++ b/fpdfsdk/pwl/cpwl_edit_impl.cpp
@@ -43,26 +43,17 @@ void DrawTextString(CFX_RenderDevice* pDevice,
                     float fFontSize,
                     const CFX_Matrix& mtUser2Device,
                     const ByteString& str,
-                    FX_ARGB crTextFill,
-                    int32_t nHorzScale) {
+                    FX_ARGB crTextFill) {
   if (!pFont)
     return;
 
   CFX_PointF pos = mtUser2Device.Transform(pt);
-  CFX_Matrix mt;
-  if (nHorzScale == 100) {
-    mt = mtUser2Device;
-  } else {
-    mt = CFX_Matrix(nHorzScale / 100.0f, 0, 0, 1, 0, 0);
-    mt.Concat(mtUser2Device);
-  }
-
   CPDF_RenderOptions ro;
   ro.SetFlags(RENDER_CLEARTYPE);
-
   ro.SetColorMode(CPDF_RenderOptions::kNormal);
   CPDF_TextRenderer::DrawTextString(pDevice, pos.x, pos.y, pFont, fFontSize,
-                                    &mt, str, crTextFill, nullptr, &ro);
+                                    mtUser2Device, str, crTextFill, nullptr,
+                                    &ro);
 }
 
 }  // namespace
@@ -437,11 +428,8 @@ void CPWL_EditImpl::DrawEdit(CFX_RenderDevice* pDevice,
   uint16_t SubWord = pEdit->GetPasswordChar();
   float fFontSize = pEdit->GetFontSize();
   CPVT_WordRange wrSelect = pEdit->GetSelectWordRange();
-  int32_t nHorzScale = pEdit->GetHorzScale();
-
   FX_COLORREF crCurFill = crTextFill;
   FX_COLORREF crOldFill = crCurFill;
-
   bool bSelect = false;
   const FX_COLORREF crWhite = ArgbEncode(255, 255, 255, 255);
   const FX_COLORREF crSelBK = ArgbEncode(255, 0, 51, 113);
@@ -504,10 +492,10 @@ void CPWL_EditImpl::DrawEdit(CFX_RenderDevice* pDevice,
         if (place.LineCmp(oldplace) != 0 || word.nFontIndex != nFontIndex ||
             crOldFill != crCurFill) {
           if (sTextBuf.tellp() > 0) {
-            DrawTextString(
-                pDevice, CFX_PointF(ptBT.x + ptOffset.x, ptBT.y + ptOffset.y),
-                pFontMap->GetPDFFont(nFontIndex), fFontSize, mtUser2Device,
-                ByteString(sTextBuf), crOldFill, nHorzScale);
+            DrawTextString(pDevice,
+                           CFX_PointF(ptBT.x + ptOffset.x, ptBT.y + ptOffset.y),
+                           pFontMap->GetPDFFont(nFontIndex), fFontSize,
+                           mtUser2Device, ByteString(sTextBuf), crOldFill);
 
             sTextBuf.str("");
           }
@@ -524,7 +512,7 @@ void CPWL_EditImpl::DrawEdit(CFX_RenderDevice* pDevice,
             CFX_PointF(word.ptWord.x + ptOffset.x, word.ptWord.y + ptOffset.y),
             pFontMap->GetPDFFont(word.nFontIndex), fFontSize, mtUser2Device,
             pEdit->GetPDFWordString(word.nFontIndex, word.Word, SubWord),
-            crCurFill, nHorzScale);
+            crCurFill);
       }
       oldplace = place;
     }
@@ -534,7 +522,7 @@ void CPWL_EditImpl::DrawEdit(CFX_RenderDevice* pDevice,
     DrawTextString(pDevice,
                    CFX_PointF(ptBT.x + ptOffset.x, ptBT.y + ptOffset.y),
                    pFontMap->GetPDFFont(nFontIndex), fFontSize, mtUser2Device,
-                   ByteString(sTextBuf), crOldFill, nHorzScale);
+                   ByteString(sTextBuf), crOldFill);
   }
 }
 
@@ -829,10 +817,6 @@ CFX_FloatRect CPWL_EditImpl::GetContentRect() const {
   return VTToEdit(m_pVT->GetContentRect());
 }
 
-int32_t CPWL_EditImpl::GetHorzScale() const {
-  return m_pVT->GetHorzScale();
-}
-
 float CPWL_EditImpl::GetCharSpace() const {
   return m_pVT->GetCharSpace();
 }
diff --git a/fpdfsdk/pwl/cpwl_edit_impl.h b/fpdfsdk/pwl/cpwl_edit_impl.h
index 743afae6b6..7f14ade66a 100644
--- a/fpdfsdk/pwl/cpwl_edit_impl.h
+++ b/fpdfsdk/pwl/cpwl_edit_impl.h
@@ -303,7 +303,6 @@ class CPWL_EditImpl {
   int32_t GetCharArray() const;
   CFX_FloatRect GetContentRect() const;
   WideString GetRangeText(const CPVT_WordRange& range) const;
-  int32_t GetHorzScale() const;
   float GetCharSpace() const;
   void SetSelection(int32_t nStartChar, int32_t nEndChar);
   void GetSelection(int32_t& nStartChar, int32_t& nEndChar) const;