Convert last batch of casts in fwl.

xfa/src/fwl/src/lightwidget/theme.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 "../../../foxitlib.h"
 FX_BOOL CFWL_Theme::IsValidWidget(IFWL_Widget* pWidget) {
-  CFWL_WidgetTP* pTheme = GetTheme(pWidget);
-  return pTheme != NULL;
+  return !!GetTheme(pWidget);
 }
 FX_DWORD CFWL_Theme::GetThemeID(IFWL_Widget* pWidget) {
-  CFWL_WidgetTP* pTheme = GetTheme(pWidget);
-  FXSYS_assert(pTheme);
-  return pTheme->GetThemeID(pWidget);
+  return GetTheme(pWidget)->GetThemeID(pWidget);
 }
 FX_DWORD CFWL_Theme::SetThemeID(IFWL_Widget* pWidget,
                                 FX_DWORD dwThemeID,
                                 FX_BOOL bChildren) {
   int32_t iCount = m_arrThemes.GetSize();
   FX_DWORD dwID;
   for (int32_t i = 0; i < iCount; i++) {
-    CFWL_WidgetTP* pTheme = (CFWL_WidgetTP*)m_arrThemes[i];
+    CFWL_WidgetTP* pTheme = static_cast<CFWL_WidgetTP*>(m_arrThemes[i]);
     dwID = pTheme->GetThemeID(pWidget);
     pTheme->SetThemeID(pWidget, dwThemeID, FALSE);
   }
   return dwID;
 }
 FWL_ERR CFWL_Theme::GetThemeMatrix(IFWL_Widget* pWidget, CFX_Matrix& matrix) {
   return FWL_ERR_Succeeded;
 }
 FWL_ERR CFWL_Theme::SetThemeMatrix(IFWL_Widget* pWidget,
                                    const CFX_Matrix& matrix) {
@@ skipping 32 matching lines @@
   return pTheme->IsInPart(pThemePart, fx, fy);
 }
 FX_BOOL CFWL_Theme::CalcTextRect(CFWL_ThemeText* pParams, CFX_RectF& rect) {
   CFWL_WidgetTP* pTheme = GetTheme(pParams->m_pWidget);
   FXSYS_assert(pTheme);
   return pTheme->CalcTextRect(pParams, rect);
 }
 FWL_ERR CFWL_Theme::Initialize() {
   int32_t iCount = m_arrThemes.GetSize();
   for (int32_t i = 0; i < iCount; i++) {
-    CFWL_WidgetTP* pTheme = (CFWL_WidgetTP*)m_arrThemes[i];
+    CFWL_WidgetTP* pTheme = static_cast<CFWL_WidgetTP*>(m_arrThemes[i]);
     pTheme->Initialize();
   }
   FWLTHEME_Init();
   return FWL_ERR_Succeeded;
 }
 FWL_ERR CFWL_Theme::Finalize() {
   int32_t iCount = m_arrThemes.GetSize();
   for (int32_t i = 0; i < iCount; i++) {
-    CFWL_WidgetTP* pTheme = (CFWL_WidgetTP*)m_arrThemes[i];
+    CFWL_WidgetTP* pTheme = static_cast<CFWL_WidgetTP*>(m_arrThemes[i]);
     pTheme->Finalize();
   }
   FWLTHEME_Release();
   return FWL_ERR_Succeeded;
 }
 CFWL_Theme::CFWL_Theme() {
   CFWL_FormTP* pFormTP = new CFWL_FormTP;
   CFWL_PushButtonTP* pPushButtonTP = new CFWL_PushButtonTP;
   CFWL_CheckBoxTP* pCheckBoxTP = new CFWL_CheckBoxTP;
   CFWL_ListBoxTP* pListBoxTP = new CFWL_ListBoxTP;
@@ skipping 12 matching lines @@
   m_arrThemes.Add(pPictureBoxTP);
   m_arrThemes.Add(pSrollBarTP);
   m_arrThemes.Add(pEditTP);
   m_arrThemes.Add(pComboBoxTP);
   m_arrThemes.Add(pBarcodeTP);
   m_arrThemes.Add(pDateTimePickerTP);
   m_arrThemes.Add(pMonthCalendarTP);
   m_arrThemes.Add(pCaretTP);
 }
 CFWL_Theme::~CFWL_Theme() {
-  int32_t iCount = m_arrThemes.GetSize();
-  for (int32_t i = 0; i < iCount; i++) {
-    CFWL_WidgetTP* pTheme = (CFWL_WidgetTP*)m_arrThemes[i];
-    delete pTheme;
+  for (int32_t i = 0; i < m_arrThemes.GetSize(); i++) {
+    delete static_cast<CFWL_WidgetTP*>(m_arrThemes[i]);
   }
   m_arrThemes.RemoveAll();
 }
 FWL_ERR CFWL_Theme::SetFont(IFWL_Widget* pWidget,
                             const FX_WCHAR* strFont,
                             FX_FLOAT fFontSize,
                             FX_ARGB rgbFont) {
   int32_t iCount = m_arrThemes.GetSize();
   for (int32_t i = 0; i < iCount; i++) {
-    CFWL_WidgetTP* pTheme = (CFWL_WidgetTP*)m_arrThemes[i];
+    CFWL_WidgetTP* pTheme = static_cast<CFWL_WidgetTP*>(m_arrThemes[i]);
     pTheme->SetFont(pWidget, strFont, fFontSize, rgbFont);
   }
   return FWL_ERR_Succeeded;
 }
 CFWL_WidgetTP* CFWL_Theme::GetTheme(IFWL_Widget* pWidget) {
   int32_t iCount = m_arrThemes.GetSize();
   for (int32_t i = 0; i < iCount; i++) {
-    CFWL_WidgetTP* pTheme = (CFWL_WidgetTP*)m_arrThemes[i];
+    CFWL_WidgetTP* pTheme = static_cast<CFWL_WidgetTP*>(m_arrThemes[i]);
     if (pTheme->IsValidWidget(pWidget)) {
       return pTheme;
     }
   }
   return NULL;
 }