Make CPDF_ImageObject::m_Matrix private.

fpdfsdk/fpdfeditimg.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 "public/fpdf_edit.h"
 
 #include "core/fpdfapi/cpdf_modulemgr.h"
 #include "core/fpdfapi/page/cpdf_image.h"
@@ skipping 37 matching lines @@
                                                    double a,
                                                    double b,
                                                    double c,
                                                    double d,
                                                    double e,
                                                    double f) {
   if (!image_object)
     return false;
 
   CPDF_ImageObject* pImgObj = reinterpret_cast<CPDF_ImageObject*>(image_object);
-  pImgObj->m_Matrix.a = static_cast<FX_FLOAT>(a);
-  pImgObj->m_Matrix.b = static_cast<FX_FLOAT>(b);
-  pImgObj->m_Matrix.c = static_cast<FX_FLOAT>(c);
-  pImgObj->m_Matrix.d = static_cast<FX_FLOAT>(d);
-  pImgObj->m_Matrix.e = static_cast<FX_FLOAT>(e);
-  pImgObj->m_Matrix.f = static_cast<FX_FLOAT>(f);
+  pImgObj->set_matrix(
+      CFX_Matrix(static_cast<FX_FLOAT>(a), static_cast<FX_FLOAT>(b),
+                 static_cast<FX_FLOAT>(c), static_cast<FX_FLOAT>(d),
+                 static_cast<FX_FLOAT>(e), static_cast<FX_FLOAT>(f)));
   pImgObj->CalcBoundingBox();
   return true;
 }
 
 DLLEXPORT FPDF_BOOL STDCALL FPDFImageObj_SetBitmap(FPDF_PAGE* pages,
                                                    int nCount,
                                                    FPDF_PAGEOBJECT image_object,
                                                    FPDF_BITMAP bitmap) {
   if (!image_object || !bitmap || !pages)
     return false;
 
   CPDF_ImageObject* pImgObj = reinterpret_cast<CPDF_ImageObject*>(image_object);
   for (int index = 0; index < nCount; index++) {
     CPDF_Page* pPage = CPDFPageFromFPDFPage(pages[index]);
     if (pPage)
       pImgObj->GetImage()->ResetCache(pPage, nullptr);
   }
   pImgObj->GetImage()->SetImage(reinterpret_cast<CFX_DIBitmap*>(bitmap), false);
   pImgObj->CalcBoundingBox();
   return true;
 }