Remove NULL in xfa/

xfa/fwl/basewidget/fwl_editimp.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 "xfa/fwl/basewidget/fwl_editimp.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 185 matching lines @@
   return static_cast<CFWL_EditImp*>(GetImpl())
       ->ReplaceSpellCheckWord(pointf, bsReplace);
 }
 
 CFWL_EditImp::CFWL_EditImp(const CFWL_WidgetImpProperties& properties,
                            IFWL_Widget* pOuter)
     : CFWL_WidgetImp(properties, pOuter),
       m_fVAlignOffset(0.0f),
       m_fScrollOffsetX(0.0f),
       m_fScrollOffsetY(0.0f),
-      m_pEdtEngine(NULL),
+      m_pEdtEngine(nullptr),
       m_bLButtonDown(FALSE),
       m_nSelStart(0),
       m_nLimit(-1),
       m_fSpaceAbove(0),
       m_fSpaceBelow(0),
       m_fFontSize(0),
       m_bSetRange(FALSE),
       m_iMin(-1),
       m_iMax(0xFFFFFFF),
       m_backColor(0),
@@ skipping 265 matching lines @@
     CFX_RectF rtClip = m_rtEngine;
     CFX_Matrix mt;
     mt.Set(1, 0, 0, 1, fOffSetX, fOffSetY);
     if (pMatrix) {
       pMatrix->TransformRect(rtClip);
       mt.Concat(*pMatrix);
     }
     pGraphics->SetClipRect(rtClip);
     pGraphics->SetStrokeColor(&crLine);
     pGraphics->SetLineWidth(0);
-    pGraphics->StrokePath(&pathSpell, NULL);
+    pGraphics->StrokePath(&pathSpell, nullptr);
   }
   pGraphics->RestoreGraphState();
 }
 FWL_Error CFWL_EditImp::DrawWidget(CFX_Graphics* pGraphics,
                                    const CFX_Matrix* pMatrix) {
   if (!pGraphics)
     return FWL_Error::Indefinite;
   if (!m_pProperties->m_pThemeProvider)
     return FWL_Error::Indefinite;
   if (m_rtClient.IsEmpty()) {
@@ skipping 854 matching lines @@
   ShowCaret(bShow, &rtCaret);
 }
 IFWL_ScrollBar* CFWL_EditImp::UpdateScroll() {
   FX_BOOL bShowHorz =
       m_pHorzScrollBar &&
       ((m_pHorzScrollBar->GetStates() & FWL_WGTSTATE_Invisible) == 0);
   FX_BOOL bShowVert =
       m_pVertScrollBar &&
       ((m_pVertScrollBar->GetStates() & FWL_WGTSTATE_Invisible) == 0);
   if (!bShowHorz && !bShowVert) {
-    return NULL;
+    return nullptr;
   }
   IFDE_TxtEdtPage* pPage = m_pEdtEngine->GetPage(0);
   if (!pPage)
-    return NULL;
+    return nullptr;
   const CFX_RectF& rtFDE = pPage->GetContentsBox();
-  IFWL_ScrollBar* pRepaint = NULL;
+  IFWL_ScrollBar* pRepaint = nullptr;
   if (bShowHorz) {
     CFX_RectF rtScroll;
     m_pHorzScrollBar->GetWidgetRect(rtScroll);
     if (rtScroll.width < rtFDE.width) {
       m_pHorzScrollBar->LockUpdate();
       FX_FLOAT fRange = rtFDE.width - rtScroll.width;
       m_pHorzScrollBar->SetRange(0.0f, fRange);
       FX_FLOAT fPos = m_fScrollOffsetX;
       if (fPos < 0.0f) {
         fPos = 0.0f;
@@ skipping 160 matching lines @@
     m_pHorzScrollBar->Update();
   } else if (m_pHorzScrollBar) {
     m_pHorzScrollBar->SetStates(FWL_WGTSTATE_Invisible, TRUE);
   }
 }
 void CFWL_EditImp::LayoutScrollBar() {
   if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ShowScrollbarFocus) ==
       0) {
     return;
   }
-  FX_FLOAT* pfWidth = NULL;
+  FX_FLOAT* pfWidth = nullptr;
   FX_BOOL bShowVertScrollbar = IsShowScrollBar(TRUE);
   FX_BOOL bShowHorzScrollbar = IsShowScrollBar(FALSE);
   if (bShowVertScrollbar) {
     if (!m_pVertScrollBar) {
       pfWidth = static_cast<FX_FLOAT*>(
           GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth));
       FX_FLOAT fWidth = pfWidth ? *pfWidth : 0;
       InitScrollBar();
       CFX_RectF rtVertScr;
       if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_OuterScrollbar) {
@@ skipping 621 matching lines @@
     }
     CFX_RectF rect;
     m_pOwner->GetWidgetRect(rect);
     CFX_RectF rtInvalidate;
     rtInvalidate.Set(0, 0, rect.width + 2, rect.height + 2);
     m_pOwner->Repaint(&rtInvalidate);
   }
   return TRUE;
 }
 void CFWL_EditImpDelegate::DoCursor(CFWL_MsgMouse* pMsg) {}