Convert FWL_ERR into an enum class.

xfa/fwl/theme/cfwl_formtp.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/theme/cfwl_formtp.h"
 
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fwl/core/cfwl_themebackground.h"
@@ skipping 26 matching lines @@
   m_rtDisLBorder.Reset();
   m_rtDisRBorder.Reset();
   m_rtDisBBorder.Reset();
   m_rtDisCaption.Reset();
 }
 
 CFWL_FormTP::~CFWL_FormTP() {
   delete m_pThemeData;
 }
 
-FWL_ERR CFWL_FormTP::Initialize() {
+FWL_Error CFWL_FormTP::Initialize() {
   InitTTO();
   InitCaption(TRUE);
   InitCaption(FALSE);
   return CFWL_WidgetTP::Initialize();
 }
 
-FWL_ERR CFWL_FormTP::Finalize() {
+FWL_Error CFWL_FormTP::Finalize() {
   FinalizeTTO();
   delete m_pActiveBitmap;
   m_pActiveBitmap = nullptr;
   delete m_pDeactivebitmap;
   m_pDeactivebitmap = nullptr;
   return CFWL_WidgetTP::Finalize();
 }
 
 FX_BOOL CFWL_FormTP::IsValidWidget(IFWL_Widget* pWidget) {
   if (!pWidget)
@@ skipping 131 matching lines @@
     default: { bDefPro = TRUE; }
   }
   if (!bDefPro) {
     if (bDwordVal) {
       return &m_dwValue;
     }
     return &m_fValue;
   }
   return CFWL_WidgetTP::GetCapacity(pThemePart, dwCapacity);
 }
-FWL_ERR CFWL_FormTP::GetPartRect(CFWL_ThemePart* pThemePart,
-                                 CFX_RectF& rtPart) {
+FWL_Error CFWL_FormTP::GetPartRect(CFWL_ThemePart* pThemePart,
+                                   CFX_RectF& rtPart) {
   switch (pThemePart->m_iPart) {
     case CFWL_Part::CloseBox: {
       CalCloseBox(pThemePart->m_pWidget, rtPart);
       break;
     }
     case CFWL_Part::MaximizeBox: {
       CalMaxBox(pThemePart->m_pWidget, rtPart);
       break;
     }
     case CFWL_Part::MinimizeBox: {
       CalMinBox(pThemePart->m_pWidget, rtPart);
       break;
     }
     case CFWL_Part::HeadText: {
       CalCaption(pThemePart->m_pWidget, rtPart);
       break;
     }
     case CFWL_Part::Icon: {
       CalIcon(pThemePart->m_pWidget, rtPart);
       break;
     }
     default: {}
   }
-  return FWL_ERR_Succeeded;
+  return FWL_Error::Succeeded;
 }
 void CFWL_FormTP::CalCloseBox(IFWL_Widget* pWidget, CFX_RectF& rect) {
   uint32_t dwStyles = pWidget->GetStyles();
   CFX_RectF rtWidget;
   pWidget->GetWidgetRect(rtWidget);
   rtWidget.Offset(-rtWidget.left, -rtWidget.top);
   if (dwStyles & FWL_WGTSTYLE_CloseBox) {
     rect.Set(rtWidget.left + kButtonMargin + kButtonSpan,
              rtWidget.top + kButtonMargin, kButtonSize, kButtonSize);
   } else {
@@ skipping 633 matching lines @@
     path.Clear();
     path.AddRectangle(0, 5, 1, 15);
     DrawAxialShading(&gs, 0, 5, 0, 20, m_pThemeData->clrHeadBK[1][1],
                      m_pThemeData->clrHeadBK[1][2], &path);
     path.Clear();
     path.AddRectangle(0, 20, 1, kCYCaption - 19);
     DrawAxialShading(&gs, 0, 20, 0, kCYCaption, m_pThemeData->clrHeadBK[1][2],
                      m_pThemeData->clrHeadBK[1][3], &path);
   }
 }