Remove NULL in xfa/

xfa/fwl/core/fwl_widgetimp.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/core/fwl_widgetimp.h"
 
 #include <algorithm>
 
@@ skipping 227 matching lines @@
 FWL_Error CFWL_WidgetImp::SetWidgetRect(const CFX_RectF& rect) {
   CFX_RectF rtOld = m_pProperties->m_rtWidget;
   m_pProperties->m_rtWidget = rect;
   if (IsChild()) {
     if (FXSYS_fabs(rtOld.width - rect.width) > 0.5f ||
         FXSYS_fabs(rtOld.height - rect.height) > 0.5f) {
       CFWL_EvtSizeChanged ev;
       ev.m_pSrcTarget = m_pInterface;
       ev.m_rtOld = rtOld;
       ev.m_rtNew = rect;
-      IFWL_WidgetDelegate* pDelegate = SetDelegate(NULL);
+      IFWL_WidgetDelegate* pDelegate = SetDelegate(nullptr);
       if (pDelegate) {
         pDelegate->OnProcessEvent(&ev);
       }
     }
     return FWL_Error::Succeeded;
   }
   m_pWidgetMgr->SetWidgetRect_Native(m_pInterface, rect);
   return FWL_Error::Succeeded;
 }
 FWL_Error CFWL_WidgetImp::GetClientRect(CFX_RectF& rect) {
@@ skipping 359 matching lines @@
   }
   return 0;
 }
 void CFWL_WidgetImp::GetRelativeRect(CFX_RectF& rect) {
   rect = m_pProperties->m_rtWidget;
   rect.left = rect.top = 0;
 }
 void* CFWL_WidgetImp::GetThemeCapacity(CFWL_WidgetCapacity dwCapacity) {
   IFWL_ThemeProvider* pTheme = GetAvailableTheme();
   if (!pTheme)
-    return NULL;
+    return nullptr;
   CFWL_ThemePart part;
   part.m_pWidget = m_pInterface;
   return pTheme->GetCapacity(&part, dwCapacity);
 }
 IFWL_ThemeProvider* CFWL_WidgetImp::GetAvailableTheme() {
   if (m_pProperties->m_pThemeProvider) {
     return m_pProperties->m_pThemeProvider;
   }
   IFWL_Widget* pUp = m_pInterface;
   do {
@@ skipping 64 matching lines @@
 
   CFWL_NoteDriver* pDriver =
       static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
   if (!pDriver)
     return;
 
   IFWL_Widget* curFocus = pDriver->GetFocus();
   if (bFocus && curFocus != m_pInterface) {
     pDriver->SetFocus(m_pInterface);
   } else if (!bFocus && curFocus == m_pInterface) {
-    pDriver->SetFocus(NULL);
+    pDriver->SetFocus(nullptr);
   }
 }
 void CFWL_WidgetImp::SetGrab(FX_BOOL bSet) {
   IFWL_App* pApp = GetOwnerApp();
   if (!pApp)
     return;
   CFWL_NoteDriver* pDriver =
       static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
   pDriver->SetGrab(m_pInterface, bSet);
 }
@@ skipping 22 matching lines @@
                                         const CFX_RectF& rtAnchor,
                                         CFX_RectF& rtPopup) {
   FX_FLOAT fx = 0;
   FX_FLOAT fy = 0;
   FX_FLOAT fScreenWidth = 0;
   FX_FLOAT fScreenHeight = 0;
   GetScreenSize(fScreenWidth, fScreenHeight);
   if (GetStylesEx() & FWL_STYLEEXT_MNU_Vert) {
     FX_BOOL bLeft = m_pProperties->m_rtWidget.left < 0;
     FX_FLOAT fRight = rtAnchor.right() + rtPopup.width;
-    TransformTo(NULL, fx, fy);
+    TransformTo(nullptr, fx, fy);
     if (fRight + fx > fScreenWidth || bLeft) {
       rtPopup.Set(rtAnchor.left - rtPopup.width, rtAnchor.top, rtPopup.width,
                   rtPopup.height);
     } else {
       rtPopup.Set(rtAnchor.right(), rtAnchor.top, rtPopup.width,
                   rtPopup.height);
     }
   } else {
     FX_FLOAT fBottom = rtAnchor.bottom() + rtPopup.height;
-    TransformTo(NULL, fx, fy);
+    TransformTo(nullptr, fx, fy);
     if (fBottom + fy > fScreenHeight) {
       rtPopup.Set(rtAnchor.left, rtAnchor.top - rtPopup.height, rtPopup.width,
                   rtPopup.height);
     } else {
       rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), rtPopup.width,
                   rtPopup.height);
     }
   }
   rtPopup.Offset(fx, fy);
   return TRUE;
 }
 FX_BOOL CFWL_WidgetImp::GetPopupPosComboBox(FX_FLOAT fMinHeight,
                                             FX_FLOAT fMaxHeight,
                                             const CFX_RectF& rtAnchor,
                                             CFX_RectF& rtPopup) {
   FX_FLOAT fx = 0;
   FX_FLOAT fy = 0;
   FX_FLOAT fScreenWidth = 0;
   FX_FLOAT fScreenHeight = 0;
   GetScreenSize(fScreenWidth, fScreenHeight);
   FX_FLOAT fPopHeight = rtPopup.height;
   if (rtPopup.height > fMaxHeight) {
     fPopHeight = fMaxHeight;
   } else if (rtPopup.height < fMinHeight) {
     fPopHeight = fMinHeight;
   }
   FX_FLOAT fWidth = std::max(rtAnchor.width, rtPopup.width);
   FX_FLOAT fBottom = rtAnchor.bottom() + fPopHeight;
-  TransformTo(NULL, fx, fy);
+  TransformTo(nullptr, fx, fy);
   if (fBottom + fy > fScreenHeight) {
     rtPopup.Set(rtAnchor.left, rtAnchor.top - fPopHeight, fWidth, fPopHeight);
   } else {
     rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), fWidth, fPopHeight);
   }
   rtPopup.Offset(fx, fy);
   return TRUE;
 }
 FX_BOOL CFWL_WidgetImp::GetPopupPosGeneral(FX_FLOAT fMinHeight,
                                            FX_FLOAT fMaxHeight,
                                            const CFX_RectF& rtAnchor,
                                            CFX_RectF& rtPopup) {
   FX_FLOAT fx = 0;
   FX_FLOAT fy = 0;
   FX_FLOAT fScreenWidth = 0;
   FX_FLOAT fScreenHeight = 0;
   GetScreenSize(fScreenWidth, fScreenHeight);
-  TransformTo(NULL, fx, fy);
+  TransformTo(nullptr, fx, fy);
   if (rtAnchor.bottom() + fy > fScreenHeight) {
     rtPopup.Set(rtAnchor.left, rtAnchor.top - rtPopup.height, rtPopup.width,
                 rtPopup.height);
   } else {
     rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), rtPopup.width,
                 rtPopup.height);
   }
   rtPopup.Offset(fx, fy);
   return TRUE;
 }
@@ skipping 29 matching lines @@
   CFWL_EvtKey* pEvent = new CFWL_EvtKey;
   pEvent->m_pSrcTarget = m_pInterface;
   pEvent->m_dwCmd = pNote->m_dwCmd;
   pEvent->m_dwKeyCode = pNote->m_dwKeyCode;
   pEvent->m_dwFlags = pNote->m_dwFlags;
   DispatchEvent(pEvent);
   pEvent->Release();
 }
 void CFWL_WidgetImp::DispatchEvent(CFWL_Event* pEvent) {
   if (m_pOuter) {
-    IFWL_WidgetDelegate* pDelegate = m_pOuter->SetDelegate(NULL);
+    IFWL_WidgetDelegate* pDelegate = m_pOuter->SetDelegate(nullptr);
     pDelegate->OnProcessEvent(pEvent);
     return;
   }
   IFWL_App* pApp = GetOwnerApp();
   if (!pApp)
     return;
   CFWL_NoteDriver* pNoteDriver = pApp->GetNoteDriver();
   if (!pNoteDriver)
     return;
   pNoteDriver->SendEvent(pEvent);
@@ skipping 169 matching lines @@
   }
 }
 
 void CFWL_WidgetImpDelegate::OnProcessEvent(CFWL_Event* pEvent) {}
 
 void CFWL_WidgetImpDelegate::OnDrawWidget(CFX_Graphics* pGraphics,
                                           const CFX_Matrix* pMatrix) {
   CFWL_EvtDraw evt;
   evt.m_pGraphics = pGraphics;
 }