Cleanup unused methods and return values in FWL code.

xfa/fwl/core/ifwl_pushbutton.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_pushbutton.h"
 
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fwl/core/cfwl_message.h"
 #include "xfa/fwl/core/cfwl_themebackground.h"
 #include "xfa/fwl/core/cfwl_themetext.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
 #include "xfa/fwl/core/ifwl_pushbutton.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 
 IFWL_PushButton::IFWL_PushButton(const CFWL_WidgetImpProperties& properties)
     : IFWL_Widget(properties, nullptr),
       m_bBtnDown(FALSE),
       m_dwTTOStyles(FDE_TTOSTYLE_SingleLine),
       m_iTTOAlign(FDE_TTOALIGNMENT_Center) {
   m_rtClient.Set(0, 0, 0, 0);
   m_rtCaption.Set(0, 0, 0, 0);
 }
 
 IFWL_PushButton::~IFWL_PushButton() {}
 
-FWL_Error IFWL_PushButton::GetClassName(CFX_WideString& wsClass) const {
-  wsClass = FWL_CLASS_PushButton;
-  return FWL_Error::Succeeded;
-}
-
 FWL_Type IFWL_PushButton::GetClassID() const {
   return FWL_Type::PushButton;
 }
 
 FWL_Error IFWL_PushButton::Initialize() {
   if (IFWL_Widget::Initialize() != FWL_Error::Succeeded)
     return FWL_Error::Indefinite;
 
   m_pDelegate = new CFWL_PushButtonImpDelegate(this);
   return FWL_Error::Succeeded;
 }
 
-FWL_Error IFWL_PushButton::Finalize() {
+void IFWL_PushButton::Finalize() {
   delete m_pDelegate;
   m_pDelegate = nullptr;
-  return IFWL_Widget::Finalize();
+  IFWL_Widget::Finalize();
 }
 
 FWL_Error IFWL_PushButton::GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize) {
   if (bAutoSize) {
     rect.Set(0, 0, 0, 0);
     if (!m_pProperties->m_pThemeProvider) {
       m_pProperties->m_pThemeProvider = GetAvailableTheme();
     }
     CFX_WideString wsCaption;
     IFWL_PushButtonDP* pData =
@@ skipping 62 matching lines @@
   CFX_Matrix matrix;
   matrix.Concat(*pMatrix);
   FX_FLOAT iPicwidth = 0;
   FX_FLOAT ipicheight = 0;
   CFX_WideString wsCaption;
   if (pData) {
     pData->GetCaption(this, wsCaption);
   }
   CFX_RectF rtText;
   rtText.Set(0, 0, 0, 0);
-  if (!wsCaption.IsEmpty()) {
+  if (!wsCaption.IsEmpty())
     CalcTextRect(wsCaption, pTheme, 0, m_iTTOAlign, rtText);
-  }
+
   switch (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_PSB_ModeMask) {
     case FWL_STYLEEXT_PSB_TextOnly:
       DrawText(pGraphics, m_pProperties->m_pThemeProvider, &matrix);
       break;
     case FWL_STYLEEXT_PSB_IconOnly:
       if (pData) {
         pPicture = pData->GetPicture(this);
       }
       if (pPicture) {
         CFX_PointF point;
@@ skipping 402 matching lines @@
     CFWL_EvtClick wmClick;
     wmClick.m_pSrcTarget = m_pOwner;
     m_pOwner->DispatchEvent(&wmClick);
     return;
   }
   if (pMsg->m_dwKeyCode != FWL_VKEY_Tab) {
     return;
   }
   m_pOwner->DispatchKeyEvent(pMsg);
 }