Make CPDF_Object::GetString() a virtual method.

fpdfsdk/src/fpdf_ext.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 "../../core/include/fxcrt/fx_xml.h"
 #include "../../public/fpdf_ext.h"
 #include "../include/fsdk_define.h"
 
@@ skipping 50 matching lines @@
         CFX_ByteString cbSubType = pPDFAnnot->GetSubType();
         if(cbSubType.Compare("3D") == 0)
         {
                 FPDF_UnSupportError(FPDF_UNSP_ANNOT_3DANNOT);
         }
         else if(cbSubType.Compare("Screen") ==0)
         {
                 CPDF_Dictionary* pAnnotDict = pPDFAnnot->GetAnnotDict();
                 CFX_ByteString cbString;
                 if(pAnnotDict->KeyExist("IT"))
-                        cbString = pAnnotDict->GetString("IT");
+                        cbString = pAnnotDict->GetStringAt("IT");
                 if(cbString.Compare("Img") != 0)
                         FPDF_UnSupportError(FPDF_UNSP_ANNOT_SCREEN_MEDIA);
         }
         else if(cbSubType.Compare("Movie") ==0)
         {
                 FPDF_UnSupportError(FPDF_UNSP_ANNOT_MOVIE);
         }
         else if(cbSubType.Compare("Sound") ==0)
         {
                 FPDF_UnSupportError(FPDF_UNSP_ANNOT_SOUND);
         }
         else if(cbSubType.Compare("RichMedia") ==0)
         {
                 FPDF_UnSupportError(FPDF_UNSP_ANNOT_SCREEN_RICHMEDIA);
         }
         else if(cbSubType.Compare("FileAttachment") ==0)
         {
                 FPDF_UnSupportError(FPDF_UNSP_ANNOT_ATTACHMENT);
         }
         else if(cbSubType.Compare("Widget") ==0)
         {
                 CPDF_Dictionary* pAnnotDict = pPDFAnnot->GetAnnotDict();
                 CFX_ByteString cbString;
                 if(pAnnotDict->KeyExist("FT"))
                 {
-                        cbString = pAnnotDict->GetString("FT");
+                        cbString = pAnnotDict->GetStringAt("FT");
                 }
                 if(cbString.Compare("Sig") == 0)
                 {
                         FPDF_UnSupportError(FPDF_UNSP_ANNOT_SIG);
                 }
         }
 
 }
 
 FX_BOOL CheckSharedForm(CXML_Element * pElement, CFX_ByteString cbName)
@@ skipping 71 matching lines @@
                                 return;
                         }
                         else if (pNameDict && pNameDict->KeyExist("JavaScript"))
                         {
                                 CPDF_Dictionary* pJSDict = pNameDict->GetDict("JavaScript");
                                 CPDF_Array * pArray = pJSDict ? pJSDict->GetArray("Names") : NULL;
                                 if (pArray) {
                                         int nCount = pArray->GetCount();
                                         for(int i=0; i<nCount; i++)
                                         {
-                                                CFX_ByteString cbStr = pArray->GetString(i);
+                                                CFX_ByteString cbStr = pArray->GetStringAt(i);
                                                 if(cbStr.Compare("com.adobe.acrobat.SharedReview.Register") == 0)
                                                 {
                                                         FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDREVIEW);
                                                         return;
                                                 }
                                         }
                                 }
                         }
                 }
         }
@@ skipping 36 matching lines @@
         return PAGEMODE_USETHUMBS;
     if (strPageMode.EqualNoCase("FullScreen"))
         return PAGEMODE_FULLSCREEN;
     if (strPageMode.EqualNoCase("UseOC"))
         return PAGEMODE_USEOC;
     if (strPageMode.EqualNoCase("UseAttachments"))
         return PAGEMODE_USEATTACHMENTS;
 
     return PAGEMODE_UNKNOWN;
 }