Cleanup IFWL_Widget visibility and virtual parameters

xfa/fwl/core/ifwl_datetimepicker.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/ifwl_datetimepicker.h"
 
 #include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/cfwl_message.h"
@@ skipping 52 matching lines @@
 }
 
 IFWL_DateTimePicker::~IFWL_DateTimePicker() {
   UnregisterEventTarget();
 }
 
 FWL_Type IFWL_DateTimePicker::GetClassID() const {
   return FWL_Type::DateTimePicker;
 }
 
-FWL_Error IFWL_DateTimePicker::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
+void IFWL_DateTimePicker::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
   if (m_pWidgetMgr->IsFormDisabled()) {
-    return DisForm_GetWidgetRect(rect, bAutoSize);
+    DisForm_GetWidgetRect(rect, bAutoSize);
+    return;
   }
   if (bAutoSize) {
     rect.Set(0, 0, kDateTimePickerWidth, kDateTimePickerHeight);
     IFWL_Widget::GetWidgetRect(rect, true);
   } else {
     rect = m_pProperties->m_rtWidget;
   }
-  return FWL_Error::Succeeded;
 }
 
-FWL_Error IFWL_DateTimePicker::Update() {
+void IFWL_DateTimePicker::Update() {
   if (m_pWidgetMgr->IsFormDisabled()) {
-    return DisForm_Update();
+    return;
   }
   if (m_iLock) {
-    return FWL_Error::Indefinite;
+    return;
   }
   if (!m_pProperties->m_pThemeProvider) {
     m_pProperties->m_pThemeProvider = GetAvailableTheme();
   }
   m_pEdit->SetThemeProvider(m_pProperties->m_pThemeProvider);
   GetClientRect(m_rtClient);
   FX_FLOAT* pFWidth = static_cast<FX_FLOAT*>(
       GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth));
   if (!pFWidth)
-    return FWL_Error::Indefinite;
+    return;
   FX_FLOAT fBtn = *pFWidth;
   m_rtBtn.Set(m_rtClient.right() - fBtn, m_rtClient.top, fBtn - 1,
               m_rtClient.height - 1);
   CFX_RectF rtEdit;
   rtEdit.Set(m_rtClient.left, m_rtClient.top, m_rtClient.width - fBtn,
              m_rtClient.height);
   m_pEdit->SetWidgetRect(rtEdit);
   ReSetEditAlignment();
   m_pEdit->Update();
   if (!(m_pMonthCal->GetThemeProvider())) {
     m_pMonthCal->SetThemeProvider(m_pProperties->m_pThemeProvider);
   }
   if (m_pProperties->m_pDataProvider) {
     IFWL_DateTimePickerDP* pData =
         static_cast<IFWL_DateTimePickerDP*>(m_pProperties->m_pDataProvider);
     pData->GetToday(this, m_iCurYear, m_iCurMonth, m_iCurDay);
   }
   CFX_RectF rtMonthCal;
   m_pMonthCal->GetWidgetRect(rtMonthCal, true);
   CFX_RectF rtPopUp;
   rtPopUp.Set(rtMonthCal.left, rtMonthCal.top + kDateTimePickerHeight,
               rtMonthCal.width, rtMonthCal.height);
   m_pMonthCal->SetWidgetRect(rtPopUp);
   m_pMonthCal->Update();
-  return FWL_Error::Succeeded;
+  return;
 }
 
 int32_t IFWL_DateTimePicker::CountSelRanges() {
   return GetDataTimeEdit()->CountSelRanges();
 }
 
 int32_t IFWL_DateTimePicker::GetSelRange(int32_t nIndex, int32_t& nStart) {
   return GetDataTimeEdit()->GetSelRange(nIndex, nStart);
 }
 
 FWL_WidgetHit IFWL_DateTimePicker::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
   if (m_pWidgetMgr->IsFormDisabled())
     return DisForm_HitTest(fx, fy);
   if (m_rtClient.Contains(fx, fy))
     return FWL_WidgetHit::Client;
   if (IsMonthCalendarShowed()) {
     CFX_RectF rect;
     m_pMonthCal->GetWidgetRect(rect);
     if (rect.Contains(fx, fy))
       return FWL_WidgetHit::Client;
   }
   return FWL_WidgetHit::Unknown;
 }
 
-FWL_Error IFWL_DateTimePicker::DrawWidget(CFX_Graphics* pGraphics,
-                                          const CFX_Matrix* pMatrix) {
+void IFWL_DateTimePicker::DrawWidget(CFX_Graphics* pGraphics,
+                                     const CFX_Matrix* pMatrix) {
   if (!pGraphics)
-    return FWL_Error::Indefinite;
+    return;
   if (!m_pProperties->m_pThemeProvider)
-    return FWL_Error::Indefinite;
+    return;
   IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
   if (HasBorder()) {
     DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix);
   }
   if (HasEdge()) {
     DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix);
   }
   if (!m_rtBtn.IsEmpty()) {
     DrawDropDownButton(pGraphics, pTheme, pMatrix);
   }
   if (m_pWidgetMgr->IsFormDisabled()) {
-    return DisForm_DrawWidget(pGraphics, pMatrix);
+    DisForm_DrawWidget(pGraphics, pMatrix);
+    return;
   }
-  return FWL_Error::Succeeded;
 }
 
-FWL_Error IFWL_DateTimePicker::SetThemeProvider(IFWL_ThemeProvider* pTP) {
+void IFWL_DateTimePicker::SetThemeProvider(IFWL_ThemeProvider* pTP) {
   m_pProperties->m_pThemeProvider = pTP;
   m_pMonthCal->SetThemeProvider(pTP);
-  return FWL_Error::Succeeded;
 }
 
 FWL_Error IFWL_DateTimePicker::GetCurSel(int32_t& iYear,
                                          int32_t& iMonth,
                                          int32_t& iDay) {
   iYear = m_iYear;
   iMonth = m_iMonth;
   iDay = m_iDay;
   return FWL_Error::Succeeded;
 }
@@ skipping 104 matching lines @@
                    m_pProperties->m_rtWidget.top);
     rect.Union(rtMonth);
   }
   return FWL_Error::Succeeded;
 }
 
 FWL_Error IFWL_DateTimePicker::SetEditLimit(int32_t nLimit) {
   return m_pEdit->SetLimit(nLimit);
 }
 
-FWL_Error IFWL_DateTimePicker::ModifyEditStylesEx(uint32_t dwStylesExAdded,
-                                                  uint32_t dwStylesExRemoved) {
-  return m_pEdit->ModifyStylesEx(dwStylesExAdded, dwStylesExRemoved);
+void IFWL_DateTimePicker::ModifyEditStylesEx(uint32_t dwStylesExAdded,
+                                             uint32_t dwStylesExRemoved) {
+  m_pEdit->ModifyStylesEx(dwStylesExAdded, dwStylesExRemoved);
 }
 
 void IFWL_DateTimePicker::DrawDropDownButton(CFX_Graphics* pGraphics,
                                              IFWL_ThemeProvider* pTheme,
                                              const CFX_Matrix* pMatrix) {
   if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_DTP_Spin) ==
       FWL_STYLEEXT_DTP_Spin) {
     return;
   }
 
@@ skipping 238 matching lines @@
   return FWL_WidgetHit::Unknown;
 }
 
 bool IFWL_DateTimePicker::DisForm_IsNeedShowButton() {
   bool bFocus = m_pProperties->m_dwStates & FWL_WGTSTATE_Focused ||
                 m_pMonthCal->GetStates() & FWL_WGTSTATE_Focused ||
                 m_pEdit->GetStates() & FWL_WGTSTATE_Focused;
   return bFocus;
 }
 
-FWL_Error IFWL_DateTimePicker::DisForm_Update() {
+void IFWL_DateTimePicker::DisForm_Update() {
   if (m_iLock)
-    return FWL_Error::Indefinite;
+    return;
   if (!m_pProperties->m_pThemeProvider)
     m_pProperties->m_pThemeProvider = GetAvailableTheme();
 
   m_pEdit->SetThemeProvider(m_pProperties->m_pThemeProvider);
   GetClientRect(m_rtClient);
   m_pEdit->SetWidgetRect(m_rtClient);
   ReSetEditAlignment();
   m_pEdit->Update();
   if (!m_pMonthCal->GetThemeProvider())
     m_pMonthCal->SetThemeProvider(m_pProperties->m_pThemeProvider);
 
   if (m_pProperties->m_pDataProvider) {
     IFWL_DateTimePickerDP* pData =
         static_cast<IFWL_DateTimePickerDP*>(m_pProperties->m_pDataProvider);
     pData->GetToday(this, m_iCurYear, m_iCurMonth, m_iCurDay);
   }
   FX_FLOAT* pWidth = static_cast<FX_FLOAT*>(
       GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth));
   if (!pWidth)
-    return FWL_Error::Succeeded;
+    return;
 
   m_fBtn = *pWidth;
   CFX_RectF rtMonthCal;
   m_pMonthCal->GetWidgetRect(rtMonthCal, true);
   CFX_RectF rtPopUp;
   rtPopUp.Set(rtMonthCal.left, rtMonthCal.top + kDateTimePickerHeight,
               rtMonthCal.width, rtMonthCal.height);
   m_pMonthCal->SetWidgetRect(rtPopUp);
   m_pMonthCal->Update();
-  return FWL_Error::Succeeded;
 }
 
-FWL_Error IFWL_DateTimePicker::DisForm_GetWidgetRect(CFX_RectF& rect,
-                                                     bool bAutoSize) {
+void IFWL_DateTimePicker::DisForm_GetWidgetRect(CFX_RectF& rect,
+                                                bool bAutoSize) {
   rect = m_pProperties->m_rtWidget;
   if (DisForm_IsNeedShowButton()) {
     rect.width += m_fBtn;
   }
-  return FWL_Error::Succeeded;
 }
 
 FWL_Error IFWL_DateTimePicker::DisForm_GetBBox(CFX_RectF& rect) {
   rect = m_pProperties->m_rtWidget;
   if (DisForm_IsNeedShowButton()) {
     rect.width += m_fBtn;
   }
   if (IsMonthCalendarShowed()) {
     CFX_RectF rtMonth;
     m_pMonthCal->GetWidgetRect(rtMonth);
     rtMonth.Offset(m_pProperties->m_rtWidget.left,
                    m_pProperties->m_rtWidget.top);
     rect.Union(rtMonth);
   }
   return FWL_Error::Succeeded;
 }
 
-FWL_Error IFWL_DateTimePicker::DisForm_DrawWidget(CFX_Graphics* pGraphics,
-                                                  const CFX_Matrix* pMatrix) {
+void IFWL_DateTimePicker::DisForm_DrawWidget(CFX_Graphics* pGraphics,
+                                             const CFX_Matrix* pMatrix) {
   if (!pGraphics)
-    return FWL_Error::Indefinite;
+    return;
   if (m_pEdit) {
     CFX_RectF rtEdit;
     m_pEdit->GetWidgetRect(rtEdit);
     CFX_Matrix mt;
     mt.Set(1, 0, 0, 1, rtEdit.left, rtEdit.top);
     if (pMatrix) {
       mt.Concat(*pMatrix);
     }
     m_pEdit->DrawWidget(pGraphics, &mt);
   }
   if (IsMonthCalendarShowed()) {
     CFX_RectF rtMonth;
     m_pMonthCal->GetWidgetRect(rtMonth);
     CFX_Matrix mt;
     mt.Set(1, 0, 0, 1, rtMonth.left, rtMonth.top);
     if (pMatrix) {
       mt.Concat(*pMatrix);
     }
     m_pMonthCal->DrawWidget(pGraphics, &mt);
   }
-  return FWL_Error::Succeeded;
+  return;
 }
 
 void IFWL_DateTimePicker::OnProcessMessage(CFWL_Message* pMessage) {
   if (!pMessage)
     return;
 
   switch (pMessage->GetClassID()) {
     case CFWL_MessageType::SetFocus:
       OnFocusChanged(pMessage, true);
       break;
@@ skipping 141 matching lines @@
   return m_iCurDay;
 }
 
 int32_t IFWL_DateTimePicker::GetCurMonth(IFWL_Widget* pWidget) {
   return m_iCurMonth;
 }
 
 int32_t IFWL_DateTimePicker::GetCurYear(IFWL_Widget* pWidget) {
   return m_iCurYear;
 }