Remove NULL in xfa/

xfa/fwl/basewidget/fwl_editimp.h

 // 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
 
 #ifndef XFA_FWL_BASEWIDGET_FWL_EDITIMP_H_
 #define XFA_FWL_BASEWIDGET_FWL_EDITIMP_H_
 
 #include <deque>
@@ skipping 24 matching lines @@
   FWL_Error GetClassName(CFX_WideString& wsClass) const override;
   FWL_Type GetClassID() const override;
   FWL_Error Initialize() override;
   FWL_Error Finalize() override;
   FWL_Error GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE) override;
   FWL_Error SetWidgetRect(const CFX_RectF& rect) override;
   FWL_Error Update() override;
   FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy) override;
   void SetStates(uint32_t dwStates, FX_BOOL bSet = TRUE) override;
   FWL_Error DrawWidget(CFX_Graphics* pGraphics,
-                       const CFX_Matrix* pMatrix = NULL) override;
+                       const CFX_Matrix* pMatrix = nullptr) override;
   FWL_Error SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) override;
 
   virtual FWL_Error SetText(const CFX_WideString& wsText);
   virtual int32_t GetTextLength() const;
   virtual FWL_Error GetText(CFX_WideString& wsText,
                             int32_t nStart = 0,
                             int32_t nCount = -1) const;
   virtual FWL_Error ClearText();
   virtual int32_t GetCaretPos() const;
   virtual int32_t SetCaretPos(int32_t nIndex, FX_BOOL bBefore = TRUE);
@@ skipping 48 matching lines @@
                           std::vector<CFX_ByteString>& sSuggest);
   FX_BOOL ReplaceSpellCheckWord(CFX_PointF pointf,
                                 const CFX_ByteStringC& bsReplace);
 
  protected:
   friend class CFWL_TxtEdtEventSink;
   friend class CFWL_EditImpDelegate;
 
   void DrawTextBk(CFX_Graphics* pGraphics,
                   IFWL_ThemeProvider* pTheme,
-                  const CFX_Matrix* pMatrix = NULL);
+                  const CFX_Matrix* pMatrix = nullptr);
   void DrawContent(CFX_Graphics* pGraphics,
                    IFWL_ThemeProvider* pTheme,
-                   const CFX_Matrix* pMatrix = NULL);
+                   const CFX_Matrix* pMatrix = nullptr);
   void UpdateEditEngine();
   void UpdateEditParams();
   void UpdateEditLayout();
   FX_BOOL UpdateOffset();
   FX_BOOL UpdateOffset(IFWL_ScrollBar* pScrollBar, FX_FLOAT fPosChanged);
   void UpdateVAlignment();
   void UpdateCaret();
   IFWL_ScrollBar* UpdateScroll();
   void Layout();
   void LayoutScrollBar();
   void DeviceToEngine(CFX_PointF& pt);
   void InitScrollBar(FX_BOOL bVert = TRUE);
   void InitEngine();
-  virtual void ShowCaret(FX_BOOL bVisible, CFX_RectF* pRect = NULL);
+  virtual void ShowCaret(FX_BOOL bVisible, CFX_RectF* pRect = nullptr);
   FX_BOOL ValidateNumberChar(FX_WCHAR cNum);
   void InitCaret();
   void ClearRecord();
   FX_BOOL IsShowScrollBar(FX_BOOL bVert);
   FX_BOOL IsContentHeightOverflow();
   int32_t AddDoRecord(IFDE_TxtEdtDoRecord* pRecord);
   void ProcessInsertError(int32_t iError);
 
   void DrawSpellCheck(CFX_Graphics* pGraphics,
-                      const CFX_Matrix* pMatrix = NULL);
+                      const CFX_Matrix* pMatrix = nullptr);
   void AddSpellCheckObj(CFX_Path& PathData,
                         int32_t nStart,
                         int32_t nCount,
                         FX_FLOAT fOffSetX,
                         FX_FLOAT fOffSetY);
   int32_t GetWordAtPoint(CFX_PointF pointf, int32_t& nCount);
 
   CFX_RectF m_rtClient;
   CFX_RectF m_rtEngine;
   CFX_RectF m_rtStatic;
@@ skipping 22 matching lines @@
   int32_t m_iCurRecord;
   int32_t m_iMaxRecord;
 };
 
 class CFWL_EditImpDelegate : public CFWL_WidgetImpDelegate {
  public:
   CFWL_EditImpDelegate(CFWL_EditImp* pOwner);
   void OnProcessMessage(CFWL_Message* pMessage) override;
   void OnProcessEvent(CFWL_Event* pEvent) override;
   void OnDrawWidget(CFX_Graphics* pGraphics,
-                    const CFX_Matrix* pMatrix = NULL) override;
+                    const CFX_Matrix* pMatrix = nullptr) override;
 
  protected:
   void DoActivate(CFWL_MsgActivate* pMsg);
   void DoDeactivate(CFWL_MsgDeactivate* pMsg);
   void DoButtonDown(CFWL_MsgMouse* pMsg);
   void OnFocusChanged(CFWL_Message* pMsg, FX_BOOL bSet = TRUE);
   void OnLButtonDown(CFWL_MsgMouse* pMsg);
   void OnLButtonUp(CFWL_MsgMouse* pMsg);
   void OnButtonDblClk(CFWL_MsgMouse* pMsg);
   void OnMouseMove(CFWL_MsgMouse* pMsg);
   void OnKeyDown(CFWL_MsgKey* pMsg);
   void OnChar(CFWL_MsgKey* pMsg);
   FX_BOOL OnScroll(IFWL_ScrollBar* pScrollBar, uint32_t dwCode, FX_FLOAT fPos);
   void DoCursor(CFWL_MsgMouse* pMsg);
   CFWL_EditImp* m_pOwner;
 };
 
 #endif  // XFA_FWL_BASEWIDGET_FWL_EDITIMP_H_