Continue cleaning IFWL classes

xfa/fwl/core/ifwl_scrollbar.h

Index: xfa/fwl/core/ifwl_scrollbar.h
diff --git a/xfa/fwl/core/ifwl_scrollbar.h b/xfa/fwl/core/ifwl_scrollbar.h
index 07393a9040a1e941a9c51b4248f449f62a46eb35..78164fd50a64afe76daa6931c9e90d52f9668079 100644
--- a/xfa/fwl/core/ifwl_scrollbar.h
+++ b/xfa/fwl/core/ifwl_scrollbar.h
@@ -9,7 +9,6 @@
 
 #include "core/fxcrt/fx_system.h"
 #include "xfa/fwl/core/cfwl_widgetproperties.h"
-#include "xfa/fwl/core/fwl_error.h"
 #include "xfa/fwl/core/ifwl_dataprovider.h"
 #include "xfa/fwl/core/ifwl_timer.h"
 #include "xfa/fwl/core/ifwl_widget.h"
@@ -51,21 +50,25 @@ class IFWL_ScrollBar : public IFWL_Widget {
   void OnDrawWidget(CFX_Graphics* pGraphics,
                     const CFX_Matrix* pMatrix) override;
 
-  bool IsVertical();
-  FWL_Error GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax);
-  FWL_Error SetRange(FX_FLOAT fMin, FX_FLOAT fMax);
-  FX_FLOAT GetPageSize();
-  FWL_Error SetPageSize(FX_FLOAT fPageSize);
-  FX_FLOAT GetStepSize();
-  FWL_Error SetStepSize(FX_FLOAT fStepSize);
-  FX_FLOAT GetPos();
-  FWL_Error SetPos(FX_FLOAT fPos);
-  FX_FLOAT GetTrackPos();
-  FWL_Error SetTrackPos(FX_FLOAT fTrackPos);
-  bool DoScroll(uint32_t dwCode, FX_FLOAT fPos = 0.0f);
-  FWL_Error SetOuter(IFWL_Widget* pOuter);
+  void GetRange(FX_FLOAT* fMin, FX_FLOAT* fMax) const {
+    ASSERT(fMin);
+    ASSERT(fMax);
+    *fMin = m_fRangeMin;
+    *fMax = m_fRangeMax;
+  }
+  void SetRange(FX_FLOAT fMin, FX_FLOAT fMax) {
+    m_fRangeMin = fMin;
+    m_fRangeMax = fMax;
+  }
+  FX_FLOAT GetPageSize() const { return m_fPageSize; }
+  void SetPageSize(FX_FLOAT fPageSize) { m_fPageSize = fPageSize; }
+  FX_FLOAT GetStepSize() const { return m_fStepSize; }
+  void SetStepSize(FX_FLOAT fStepSize) { m_fStepSize = fStepSize; }
+  FX_FLOAT GetPos() const { return m_fPos; }
+  void SetPos(FX_FLOAT fPos) { m_fPos = fPos; }
+  void SetTrackPos(FX_FLOAT fTrackPos);
 
- protected:
+ private:
   class Timer : public IFWL_Timer {
    public:
     explicit Timer(IFWL_ScrollBar* pToolTip);
@@ -75,7 +78,9 @@ class IFWL_ScrollBar : public IFWL_Widget {
   };
   friend class IFWL_ScrollBar::Timer;
 
-  IFWL_ScrollBar();
+  bool IsVertical() const {
+    return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_SCB_Vert);
+  }
   void DrawTrack(CFX_Graphics* pGraphics,
                  IFWL_ThemeProvider* pTheme,
                  bool bLower = true,
@@ -98,6 +103,33 @@ class IFWL_ScrollBar : public IFWL_Widget {
   void GetTrackRect(CFX_RectF& rect, bool bLower = true);
   bool SendEvent();
   bool OnScroll(uint32_t dwCode, FX_FLOAT fPos);
+  void OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  void OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  void OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  void OnMouseLeave();
+  void OnMouseWheel(FX_FLOAT fx,
+                    FX_FLOAT fy,
+                    uint32_t dwFlags,
+                    FX_FLOAT fDeltaX,
+                    FX_FLOAT fDeltaY);
+  bool DoScroll(uint32_t dwCode, FX_FLOAT fPos = 0.0f);
+  void DoMouseDown(int32_t iItem,
+                   const CFX_RectF& rtItem,
+                   int32_t& iState,
+                   FX_FLOAT fx,
+                   FX_FLOAT fy);
+  void DoMouseUp(int32_t iItem,
+                 const CFX_RectF& rtItem,
+                 int32_t& iState,
+                 FX_FLOAT fx,
+                 FX_FLOAT fy);
+  void DoMouseMove(int32_t iItem,
+                   const CFX_RectF& rtItem,
+                   int32_t& iState,
+                   FX_FLOAT fx,
+                   FX_FLOAT fy);
+  void DoMouseLeave(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState);
+  void DoMouseHover(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState);
 
   IFWL_TimerInfo* m_pTimerInfo;
   FX_FLOAT m_fRangeMin;
@@ -115,10 +147,7 @@ class IFWL_ScrollBar : public IFWL_Widget {
   FX_FLOAT m_cpTrackPointX;
   FX_FLOAT m_cpTrackPointY;
   int32_t m_iMouseWheel;
-  bool m_bTrackMouseLeave;
-  bool m_bMouseHover;
   bool m_bMouseDown;
-  bool m_bRepaintThumb;
   FX_FLOAT m_fButtonLen;
   bool m_bMinSize;
   CFX_RectF m_rtClient;
@@ -130,34 +159,6 @@ class IFWL_ScrollBar : public IFWL_Widget {
   bool m_bCustomLayout;
   FX_FLOAT m_fMinThumb;
   IFWL_ScrollBar::Timer m_Timer;
-
- private:
-  void OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  void OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  void OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
-  void OnMouseLeave();
-  void OnMouseWheel(FX_FLOAT fx,
-                    FX_FLOAT fy,
-                    uint32_t dwFlags,
-                    FX_FLOAT fDeltaX,
-                    FX_FLOAT fDeltaY);
-  void DoMouseDown(int32_t iItem,
-                   const CFX_RectF& rtItem,
-                   int32_t& iState,
-                   FX_FLOAT fx,
-                   FX_FLOAT fy);
-  void DoMouseUp(int32_t iItem,
-                 const CFX_RectF& rtItem,
-                 int32_t& iState,
-                 FX_FLOAT fx,
-                 FX_FLOAT fy);
-  void DoMouseMove(int32_t iItem,
-                   const CFX_RectF& rtItem,
-                   int32_t& iState,
-                   FX_FLOAT fx,
-                   FX_FLOAT fy);
-  void DoMouseLeave(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState);
-  void DoMouseHover(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState);
 };
 
 #endif  // XFA_FWL_CORE_IFWL_SCROLLBAR_H_