Cleanup FWL default values part II.

xfa/fwl/core/cfwl_listbox.h

 // 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
 
 #ifndef XFA_FWL_CORE_CFWL_LISTBOX_H_
 #define XFA_FWL_CORE_CFWL_LISTBOX_H_
 
 #include <memory>
@@ skipping 66 matching lines @@
   void GetItemCheckRect(CFWL_Widget* pWidget,
                         CFWL_ListItem* pItem,
                         CFX_RectF& rtCheck);
   void SetItemCheckRect(CFWL_Widget* pWidget,
                         CFWL_ListItem* pItem,
                         const CFX_RectF& rtCheck);
   uint32_t GetItemCheckState(CFWL_Widget* pWidget, CFWL_ListItem* pItem);
   void SetItemCheckState(CFWL_Widget* pWidget,
                          CFWL_ListItem* pItem,
                          uint32_t dwCheckState);
-  CFWL_ListItem* AddString(const CFX_WideStringC& wsAdd, bool bSelect = false);
+  CFWL_ListItem* AddString(const CFX_WideStringC& wsAdd);
   bool RemoveAt(int32_t iIndex);
   bool DeleteString(CFWL_ListItem* pItem);
   void DeleteAll();
 
   int32_t CountSelItems();
   CFWL_ListItem* GetSelItem(int32_t nIndexSel);
   int32_t GetSelIndex(int32_t nIndex);
-  void SetSelItem(CFWL_ListItem* hItem, bool bSelect = true);
+  void SetSelItem(CFWL_ListItem* hItem, bool bSelect);
   CFX_WideString GetDataProviderItemText(CFWL_ListItem* hItem);
 
   FX_FLOAT GetItemHeight() const { return m_fItemHeight; }
   FX_FLOAT CalcItemHeight();
 
  protected:
   CFWL_ListItem* GetListItem(CFWL_ListItem* hItem, uint32_t dwKeyCode);
   void SetSelection(CFWL_ListItem* hStart, CFWL_ListItem* hEnd, bool bSelected);
   CFWL_ListItem* GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy);
   bool ScrollToVisible(CFWL_ListItem* hItem);
-  void InitScrollBar(bool bVert = true);
+  void InitVerticalScrollBar();
+  void InitHorizontalScrollBar();
   bool IsShowScrollBar(bool bVert);
   CFWL_ScrollBar* GetVertScrollBar() const { return m_pVertScrollBar.get(); }
   const CFX_RectF& GetRTClient() const { return m_rtClient; }
 
  private:
   void SetSelectionDirect(CFWL_ListItem* hItem, bool bSelect);
   bool IsMultiSelection() const;
   bool IsItemSelected(CFWL_ListItem* hItem);
   void ClearSelection();
   void SelectAll();
   CFWL_ListItem* GetFocusedItem();
   void SetFocusItem(CFWL_ListItem* hItem);
   bool GetItemCheckRectInternal(CFWL_ListItem* hItem, CFX_RectF& rtCheck);
   bool SetItemChecked(CFWL_ListItem* hItem, bool bChecked);
   bool GetItemChecked(CFWL_ListItem* hItem);
   void DrawBkground(CFX_Graphics* pGraphics,
                     IFWL_ThemeProvider* pTheme,
-                    const CFX_Matrix* pMatrix = nullptr);
+                    const CFX_Matrix* pMatrix);
   void DrawItems(CFX_Graphics* pGraphics,
                  IFWL_ThemeProvider* pTheme,
-                 const CFX_Matrix* pMatrix = nullptr);
+                 const CFX_Matrix* pMatrix);
   void DrawItem(CFX_Graphics* pGraphics,
                 IFWL_ThemeProvider* pTheme,
                 CFWL_ListItem* hItem,
                 int32_t Index,
                 const CFX_RectF& rtItem,
-                const CFX_Matrix* pMatrix = nullptr);
+                const CFX_Matrix* pMatrix);
   void DrawStatic(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme);
-  CFX_SizeF CalcSize(bool bAutoSize = false);
+  CFX_SizeF CalcSize(bool bAutoSize);
   void GetItemSize(CFX_SizeF& size,
                    CFWL_ListItem* hItem,
                    FX_FLOAT fWidth,
                    FX_FLOAT fHeight,
-                   bool bAutoSize = false);
+                   bool bAutoSize);
   FX_FLOAT GetMaxTextWidth();
   FX_FLOAT GetScrollWidth();
 
-  void OnFocusChanged(CFWL_Message* pMsg, bool bSet = true);
+  void OnFocusChanged(CFWL_Message* pMsg, bool bSet);
   void OnLButtonDown(CFWL_MsgMouse* pMsg);
   void OnLButtonUp(CFWL_MsgMouse* pMsg);
   void OnMouseWheel(CFWL_MsgMouseWheel* pMsg);
   void OnKeyDown(CFWL_MsgKey* pMsg);
   void OnVK(CFWL_ListItem* hItem, bool bShift, bool bCtrl);
   bool OnScroll(CFWL_ScrollBar* pScrollBar,
                 CFWL_EvtScroll::Code dwCode,
                 FX_FLOAT fPos);
 
   CFX_RectF m_rtClient;
   CFX_RectF m_rtStatic;
   CFX_RectF m_rtConent;
   std::unique_ptr<CFWL_ScrollBar> m_pHorzScrollBar;
   std::unique_ptr<CFWL_ScrollBar> m_pVertScrollBar;
   uint32_t m_dwTTOStyles;
   int32_t m_iTTOAligns;
   CFWL_ListItem* m_hAnchor;
   FX_FLOAT m_fItemHeight;
   FX_FLOAT m_fScorllBarWidth;
   bool m_bLButtonDown;
   IFWL_ThemeProvider* m_pScrollBarTP;
   std::vector<std::unique_ptr<CFWL_ListItem>> m_ItemArray;
 };
 
 #endif  // XFA_FWL_CORE_CFWL_LISTBOX_H_