Remove CLASSHASH defines in favour of an enum class.

xfa/fwl/basewidget/fwl_datetimepickerimp.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_datetimepickerimp.h"
 
 #include "xfa/fwl/basewidget/fwl_editimp.h"
 #include "xfa/fwl/basewidget/fwl_formproxyimp.h"
@@ skipping 403 matching lines @@
       rtInvalidate.Union(lpDatesInfo->rect);
     }
     m_pOwner->AddSelDay(iCurSel);
     CFWL_DateTimePickerImp* pDateTime =
         static_cast<CFWL_DateTimePickerImp*>(m_pOwner->m_pOuter->GetImpl());
     pDateTime->ProcessSelChanged(m_pOwner->m_iCurYear, m_pOwner->m_iCurMonth,
                                  iCurSel);
     pDateTime->ShowMonthCalendar(FALSE);
   }
 }
+
 CFWL_DateTimePickerImp::CFWL_DateTimePickerImp(
     const CFWL_WidgetImpProperties& properties,
     IFWL_Widget* pOuter)
     : CFWL_WidgetImp(properties, pOuter),
       m_iBtnState(1),
       m_iYear(-1),
       m_iMonth(-1),
       m_iDay(-1),
       m_bLBtnDown(FALSE),
       m_pEdit(nullptr),
       m_pMonthCal(nullptr),
       m_pForm(nullptr) {
   m_rtBtn.Set(0, 0, 0, 0);
 }
+
 CFWL_DateTimePickerImp::~CFWL_DateTimePickerImp() {}
+
 FWL_Error CFWL_DateTimePickerImp::GetClassName(CFX_WideString& wsClass) const {
   wsClass = FWL_CLASS_DateTimePicker;
   return FWL_Error::Succeeded;
 }
-uint32_t CFWL_DateTimePickerImp::GetClassID() const {
-  return FWL_CLASSHASH_DateTimePicker;
+
+FWL_Type CFWL_DateTimePickerImp::GetClassID() const {
+  return FWL_Type::DateTimePicker;
 }
+
 FWL_Error CFWL_DateTimePickerImp::Initialize() {
   if (CFWL_WidgetImp::Initialize() != FWL_Error::Succeeded)
     return FWL_Error::Indefinite;
+
   m_pDelegate = new CFWL_DateTimePickerImpDelegate(this);
   m_pProperties->m_dwStyleExes = FWL_STYLEEXT_DTP_ShortDateFormat;
   CFWL_WidgetImpProperties propMonth;
   propMonth.m_dwStyles = FWL_WGTSTYLE_Popup | FWL_WGTSTYLE_Border;
   propMonth.m_dwStates = FWL_WGTSTATE_Invisible;
   propMonth.m_pDataProvider = &m_MonthCalendarDP;
   propMonth.m_pParent = m_pInterface;
   propMonth.m_pThemeProvider = m_pProperties->m_pThemeProvider;
   m_pMonthCal.reset(IFWL_DateTimeCalender::Create(propMonth, m_pInterface));
   m_pMonthCal->Initialize();
   CFX_RectF rtMonthCal;
   m_pMonthCal->GetWidgetRect(rtMonthCal, TRUE);
   rtMonthCal.Set(0, 0, rtMonthCal.width, rtMonthCal.height);
   m_pMonthCal->SetWidgetRect(rtMonthCal);
   CFWL_WidgetImpProperties propEdit;
   propEdit.m_pParent = m_pInterface;
   propEdit.m_pThemeProvider = m_pProperties->m_pThemeProvider;
   m_pEdit.reset(IFWL_DateTimeEdit::Create(propEdit, m_pInterface));
   m_pEdit->Initialize();
   RegisterEventTarget(m_pMonthCal.get());
   RegisterEventTarget(m_pEdit.get());
   return FWL_Error::Succeeded;
 }
+
 FWL_Error CFWL_DateTimePickerImp::Finalize() {
   if (m_pEdit) {
     m_pEdit->Finalize();
   }
   if (m_pMonthCal) {
     m_pMonthCal->Finalize();
   }
   if (m_pForm) {
     m_pForm->Finalize();
   }
@@ skipping 692 matching lines @@
     }
     if (m_pOwner->m_pEdit->GetStates() & FWL_WGTSTATE_Focused) {
       pMsg->m_pSrcTarget = m_pOwner->m_pEdit.get();
       IFWL_WidgetDelegate* pDelegate = m_pOwner->m_pEdit->SetDelegate(NULL);
       pDelegate->OnProcessMessage(pMsg);
     }
   }
   rtInvalidate.Inflate(2, 2);
   m_pOwner->Repaint(&rtInvalidate);
 }