Get rid of NULLs in fpdfsdk/

fpdfsdk/pdfwindow/PWL_EditCtrl.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 "fpdfsdk/pdfwindow/PWL_EditCtrl.h"
 
 #include "core/fpdfdoc/include/cpvt_section.h"
 #include "core/fpdfdoc/include/cpvt_word.h"
 #include "fpdfsdk/pdfwindow/PWL_Caret.h"
 #include "fpdfsdk/pdfwindow/PWL_FontMap.h"
 #include "fpdfsdk/pdfwindow/PWL_ScrollBar.h"
 #include "fpdfsdk/pdfwindow/PWL_Utils.h"
 #include "fpdfsdk/pdfwindow/PWL_Wnd.h"
 #include "public/fpdf_fwlevent.h"
 
 #define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
 #define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
 #define IsFloatSmaller(fa, fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb)))
 #define IsFloatEqual(fa, fb) IsFloatZero((fa) - (fb))
 
 CPWL_EditCtrl::CPWL_EditCtrl()
     : m_pEdit(IFX_Edit::NewEdit()),
-      m_pEditCaret(NULL),
+      m_pEditCaret(nullptr),
       m_bMouseDown(FALSE),
-      m_pEditNotify(NULL),
+      m_pEditNotify(nullptr),
       m_nCharSet(DEFAULT_CHARSET),
       m_nCodePage(0) {}
 
 CPWL_EditCtrl::~CPWL_EditCtrl() {
   IFX_Edit::DelEdit(m_pEdit);
 }
 
 void CPWL_EditCtrl::OnCreate(PWL_CREATEPARAM& cp) {
   cp.eCursorType = FXCT_VBEAM;
 }
@@ skipping 405 matching lines @@
     nFontIndex = word.nFontIndex;
   } else if (HasFlag(PES_RICH)) {
     if (pIterator->GetSection(section)) {
       nFontIndex = section.WordProps.nFontIndex;
     }
   }
 
   if (IPVT_FontMap* pFontMap = GetFontMap())
     return pFontMap->GetPDFFont(nFontIndex);
 
-  return NULL;
+  return nullptr;
 }
 
 FX_FLOAT CPWL_EditCtrl::GetCaretFontSize() const {
   FX_FLOAT fFontSize = GetFontSize();
 
   IFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
   pIterator->SetAt(m_pEdit->GetCaret());
   CPVT_Word word;
   CPVT_Section section;
   if (pIterator->GetWord(word)) {
@@ skipping 92 matching lines @@
 
 void CPWL_EditCtrl::IOnSetCaret(FX_BOOL bVisible,
                                 const CFX_FloatPoint& ptHead,
                                 const CFX_FloatPoint& ptFoot,
                                 const CPVT_WordPlace& place) {
   PWL_CARET_INFO cInfo;
   cInfo.bVisible = bVisible;
   cInfo.ptHead = ptHead;
   cInfo.ptFoot = ptFoot;
 
-  OnNotify(this, PNM_SETCARETINFO, (intptr_t)&cInfo, (intptr_t)NULL);
+  OnNotify(this, PNM_SETCARETINFO, (intptr_t)&cInfo, (intptr_t) nullptr);
 }
 
 void CPWL_EditCtrl::IOnCaretChange(const CPVT_SecProps& secProps,
                                    const CPVT_WordProps& wordProps) {}
 
 void CPWL_EditCtrl::IOnContentChange(const CFX_FloatRect& rcContent) {
   if (IsValid()) {
     if (m_pEditNotify) {
       m_pEditNotify->OnContentChange(rcContent);
     }
@@ skipping 23 matching lines @@
   CPVT_WordPlace wpEnd = m_pEdit->WordIndexToWordPlace(nEndChar);
   return m_pEdit->GetRangeText(CPVT_WordRange(wpStart, wpEnd));
 }
 
 void CPWL_EditCtrl::SetReadyToInput() {
   if (m_bMouseDown) {
     ReleaseCapture();
     m_bMouseDown = FALSE;
   }
 }