Rename IFWL classes which do not have CFWL equivalents

xfa/fwl/core/ifwl_scrollbar.cpp

Index: xfa/fwl/core/ifwl_scrollbar.cpp
diff --git a/xfa/fwl/core/ifwl_scrollbar.cpp b/xfa/fwl/core/ifwl_scrollbar.cpp
deleted file mode 100644
index c1feeb847b5b2506538e5f145cb5bd26ecb2baf5..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/ifwl_scrollbar.cpp
+++ /dev/null
@@ -1,563 +0,0 @@
-// 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_scrollbar.h"
-
-#include <algorithm>
-#include <memory>
-#include <utility>
-
-#include "third_party/base/ptr_util.h"
-#include "xfa/fwl/core/cfwl_msgmouse.h"
-#include "xfa/fwl/core/cfwl_msgmousewheel.h"
-#include "xfa/fwl/core/cfwl_notedriver.h"
-#include "xfa/fwl/core/cfwl_themebackground.h"
-#include "xfa/fwl/core/cfwl_themepart.h"
-#include "xfa/fwl/core/cfwl_timerinfo.h"
-#include "xfa/fwl/core/ifwl_themeprovider.h"
-
-#define FWL_SCROLLBAR_Elapse 500
-#define FWL_SCROLLBAR_MinThumb 5
-
-IFWL_ScrollBar::IFWL_ScrollBar(
-    const CFWL_App* app,
-    std::unique_ptr<CFWL_WidgetProperties> properties,
-    IFWL_Widget* pOuter)
-    : IFWL_Widget(app, std::move(properties), pOuter),
-      m_pTimerInfo(nullptr),
-      m_fRangeMin(0),
-      m_fRangeMax(-1),
-      m_fPageSize(0),
-      m_fStepSize(0),
-      m_fPos(0),
-      m_fTrackPos(0),
-      m_iMinButtonState(CFWL_PartState_Normal),
-      m_iMaxButtonState(CFWL_PartState_Normal),
-      m_iThumbButtonState(CFWL_PartState_Normal),
-      m_iMinTrackState(CFWL_PartState_Normal),
-      m_iMaxTrackState(CFWL_PartState_Normal),
-      m_fLastTrackPos(0),
-      m_cpTrackPointX(0),
-      m_cpTrackPointY(0),
-      m_iMouseWheel(0),
-      m_bMouseDown(false),
-      m_fButtonLen(0),
-      m_bMinSize(false),
-      m_fMinThumb(FWL_SCROLLBAR_MinThumb),
-      m_Timer(this) {
-  m_rtClient.Reset();
-  m_rtThumb.Reset();
-  m_rtMinBtn.Reset();
-  m_rtMaxBtn.Reset();
-  m_rtMinTrack.Reset();
-  m_rtMaxTrack.Reset();
-}
-
-IFWL_ScrollBar::~IFWL_ScrollBar() {}
-
-FWL_Type IFWL_ScrollBar::GetClassID() const {
-  return FWL_Type::ScrollBar;
-}
-
-void IFWL_ScrollBar::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
-  if (!bAutoSize) {
-    rect = m_pProperties->m_rtWidget;
-    return;
-  }
-
-  rect.Set(0, 0, 0, 0);
-  FX_FLOAT* pfMinWidth = static_cast<FX_FLOAT*>(
-      GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth));
-  if (!pfMinWidth)
-    return;
-  if (IsVertical())
-    rect.Set(0, 0, (*pfMinWidth), (*pfMinWidth) * 3);
-  else
-    rect.Set(0, 0, (*pfMinWidth) * 3, (*pfMinWidth));
-  IFWL_Widget::GetWidgetRect(rect, true);
-}
-
-void IFWL_ScrollBar::Update() {
-  if (IsLocked())
-    return;
-  if (!m_pProperties->m_pThemeProvider)
-    m_pProperties->m_pThemeProvider = GetAvailableTheme();
-
-  Layout();
-}
-
-void IFWL_ScrollBar::DrawWidget(CFX_Graphics* pGraphics,
-                                const CFX_Matrix* pMatrix) {
-  if (!pGraphics)
-    return;
-  if (!m_pProperties->m_pThemeProvider)
-    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);
-  DrawTrack(pGraphics, pTheme, true, pMatrix);
-  DrawTrack(pGraphics, pTheme, false, pMatrix);
-  DrawArrowBtn(pGraphics, pTheme, true, pMatrix);
-  DrawArrowBtn(pGraphics, pTheme, false, pMatrix);
-  DrawThumb(pGraphics, pTheme, pMatrix);
-}
-
-void IFWL_ScrollBar::SetTrackPos(FX_FLOAT fTrackPos) {
-  m_fTrackPos = fTrackPos;
-  CalcThumbButtonRect(m_rtThumb);
-  CalcMinTrackRect(m_rtMinTrack);
-  CalcMaxTrackRect(m_rtMaxTrack);
-}
-
-bool IFWL_ScrollBar::DoScroll(FWL_SCBCODE dwCode, FX_FLOAT fPos) {
-  if (dwCode == FWL_SCBCODE::None)
-    return false;
-  return OnScroll(dwCode, fPos);
-}
-
-void IFWL_ScrollBar::DrawTrack(CFX_Graphics* pGraphics,
-                               IFWL_ThemeProvider* pTheme,
-                               bool bLower,
-                               const CFX_Matrix* pMatrix) {
-  CFWL_ThemeBackground param;
-  param.m_pWidget = this;
-  param.m_iPart = bLower ? CFWL_Part::LowerTrack : CFWL_Part::UpperTrack;
-  param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
-                         ? CFWL_PartState_Disabled
-                         : (bLower ? m_iMinTrackState : m_iMaxTrackState);
-  param.m_pGraphics = pGraphics;
-  param.m_matrix.Concat(*pMatrix);
-  param.m_rtPart = bLower ? m_rtMinTrack : m_rtMaxTrack;
-  pTheme->DrawBackground(&param);
-}
-
-void IFWL_ScrollBar::DrawArrowBtn(CFX_Graphics* pGraphics,
-                                  IFWL_ThemeProvider* pTheme,
-                                  bool bMinBtn,
-                                  const CFX_Matrix* pMatrix) {
-  CFWL_ThemeBackground param;
-  param.m_pWidget = this;
-  param.m_iPart = bMinBtn ? CFWL_Part::ForeArrow : CFWL_Part::BackArrow;
-  param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
-                         ? CFWL_PartState_Disabled
-                         : (bMinBtn ? m_iMinButtonState : m_iMaxButtonState);
-  param.m_pGraphics = pGraphics;
-  param.m_matrix.Concat(*pMatrix);
-  param.m_rtPart = bMinBtn ? m_rtMinBtn : m_rtMaxBtn;
-  if (param.m_rtPart.height > 0 && param.m_rtPart.width > 0)
-    pTheme->DrawBackground(&param);
-}
-
-void IFWL_ScrollBar::DrawThumb(CFX_Graphics* pGraphics,
-                               IFWL_ThemeProvider* pTheme,
-                               const CFX_Matrix* pMatrix) {
-  CFWL_ThemeBackground param;
-  param.m_pWidget = this;
-  param.m_iPart = CFWL_Part::Thumb;
-  param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
-                         ? CFWL_PartState_Disabled
-                         : m_iThumbButtonState;
-  param.m_pGraphics = pGraphics;
-  param.m_matrix.Concat(*pMatrix);
-  param.m_rtPart = m_rtThumb;
-  pTheme->DrawBackground(&param);
-}
-
-void IFWL_ScrollBar::Layout() {
-  IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
-  CFWL_ThemePart part;
-  part.m_pWidget = this;
-  m_fMinThumb = *static_cast<FX_FLOAT*>(
-      pTheme->GetCapacity(&part, CFWL_WidgetCapacity::Size));
-  GetClientRect(m_rtClient);
-  CalcButtonLen();
-  CalcMinButtonRect(m_rtMinBtn);
-  CalcMaxButtonRect(m_rtMaxBtn);
-  CalcThumbButtonRect(m_rtThumb);
-  CalcMinTrackRect(m_rtMinTrack);
-  CalcMaxTrackRect(m_rtMaxTrack);
-}
-
-void IFWL_ScrollBar::CalcButtonLen() {
-  m_fButtonLen = IsVertical() ? m_rtClient.width : m_rtClient.height;
-  FX_FLOAT fLength = IsVertical() ? m_rtClient.height : m_rtClient.width;
-  if (fLength < m_fButtonLen * 2) {
-    m_fButtonLen = fLength / 2;
-    m_bMinSize = true;
-  } else {
-    m_bMinSize = false;
-  }
-}
-
-void IFWL_ScrollBar::CalcMinButtonRect(CFX_RectF& rect) {
-  rect.left = m_rtClient.left;
-  rect.top = m_rtClient.top;
-  rect.width = IsVertical() ? m_rtClient.width : m_fButtonLen;
-  rect.height = IsVertical() ? m_fButtonLen : m_rtClient.height;
-}
-
-void IFWL_ScrollBar::CalcMaxButtonRect(CFX_RectF& rect) {
-  rect.left =
-      IsVertical() ? m_rtClient.left : m_rtClient.right() - m_fButtonLen;
-  rect.top = IsVertical() ? m_rtClient.bottom() - m_fButtonLen : m_rtClient.top;
-  rect.width = IsVertical() ? m_rtClient.width : m_fButtonLen;
-  rect.height = IsVertical() ? m_fButtonLen : m_rtClient.height;
-}
-
-void IFWL_ScrollBar::CalcThumbButtonRect(CFX_RectF& rect) {
-  if (!IsEnabled()) {
-    m_rtThumb.Reset();
-    return;
-  }
-  if (m_bMinSize) {
-    m_rtThumb.Empty();
-    return;
-  }
-
-  FX_FLOAT fRange = m_fRangeMax - m_fRangeMin;
-  memset(&rect, 0, sizeof(CFX_Rect));
-  if (fRange < 0) {
-    if (IsVertical())
-      rect.Set(m_rtClient.left, m_rtMaxBtn.bottom(), m_rtClient.width, 0);
-    else
-      rect.Set(m_rtMaxBtn.right(), m_rtClient.top, 0, m_rtClient.height);
-    return;
-  }
-
-  CFX_RectF rtClient = m_rtClient;
-  FX_FLOAT fLength = IsVertical() ? rtClient.height : rtClient.width;
-  FX_FLOAT fSize = m_fButtonLen;
-  fLength -= fSize * 2.0f;
-  if (fLength < fSize)
-    fLength = 0.0f;
-
-  FX_FLOAT fThumbSize = fLength * fLength / (fRange + fLength);
-  fThumbSize = std::max(fThumbSize, m_fMinThumb);
-
-  FX_FLOAT fDiff = std::max(fLength - fThumbSize, 0.0f);
-  FX_FLOAT fTrackPos =
-      std::max(std::min(m_fTrackPos, m_fRangeMax), m_fRangeMin);
-  if (!fRange)
-    return;
-
-  FX_FLOAT iPos = fSize + fDiff * (fTrackPos - m_fRangeMin) / fRange;
-  rect.left = rtClient.left;
-  if (!IsVertical())
-    rect.left += iPos;
-
-  rect.top = rtClient.top;
-  if (IsVertical())
-    rect.top += iPos;
-
-  rect.width = IsVertical() ? rtClient.width : fThumbSize;
-  rect.height = IsVertical() ? fThumbSize : rtClient.height;
-}
-
-void IFWL_ScrollBar::CalcMinTrackRect(CFX_RectF& rect) {
-  if (m_bMinSize) {
-    rect.Empty();
-    return;
-  }
-
-  FX_FLOAT fBottom = m_rtThumb.bottom();
-  FX_FLOAT fRight = m_rtThumb.right();
-  FX_FLOAT ix = (m_rtThumb.left + fRight) / 2;
-  FX_FLOAT iy = (m_rtThumb.top + fBottom) / 2;
-  rect.left = m_rtClient.left;
-  rect.top = m_rtClient.top;
-  bool bVertical = IsVertical();
-  rect.width = bVertical ? m_rtClient.width : ix;
-  rect.height = bVertical ? iy : m_rtClient.height;
-}
-
-void IFWL_ScrollBar::CalcMaxTrackRect(CFX_RectF& rect) {
-  if (m_bMinSize) {
-    rect.Empty();
-    return;
-  }
-
-  FX_FLOAT ix = (m_rtThumb.left + m_rtThumb.right()) / 2;
-  FX_FLOAT iy = (m_rtThumb.top + m_rtThumb.bottom()) / 2;
-  bool bVertical = IsVertical();
-  rect.left = bVertical ? m_rtClient.left : ix;
-  rect.top = bVertical ? iy : m_rtClient.top;
-  rect.width = bVertical ? m_rtClient.width : m_rtClient.right() - ix;
-  rect.height = bVertical ? m_rtClient.bottom() - iy : m_rtClient.height;
-}
-
-FX_FLOAT IFWL_ScrollBar::GetTrackPointPos(FX_FLOAT fx, FX_FLOAT fy) {
-  FX_FLOAT fDiffX = fx - m_cpTrackPointX;
-  FX_FLOAT fDiffY = fy - m_cpTrackPointY;
-  FX_FLOAT fRange = m_fRangeMax - m_fRangeMin;
-  FX_FLOAT fPos;
-
-  if (IsVertical()) {
-    fPos = fRange * fDiffY /
-           (m_rtMaxBtn.top - m_rtMinBtn.bottom() - m_rtThumb.height);
-  } else {
-    fPos = fRange * fDiffX /
-           (m_rtMaxBtn.left - m_rtMinBtn.right() - m_rtThumb.width);
-  }
-
-  fPos += m_fLastTrackPos;
-  return std::min(std::max(fPos, m_fRangeMin), m_fRangeMax);
-}
-
-void IFWL_ScrollBar::GetTrackRect(CFX_RectF& rect, bool bLower) {
-  bool bDisabled = !!(m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled);
-  if (bDisabled) {
-    rect = bLower ? m_rtMinTrack : m_rtMaxTrack;
-    return;
-  }
-
-  FX_FLOAT fW = m_rtThumb.width / 2;
-  FX_FLOAT fH = m_rtThumb.height / 2;
-  bool bVert = IsVertical();
-  if (bLower) {
-    if (bVert) {
-      FX_FLOAT fMinTrackHeight = m_rtMinTrack.height - fH - m_rtMinBtn.height;
-      fMinTrackHeight = (fMinTrackHeight >= 0.0f) ? fMinTrackHeight : 0.0f;
-      rect.Set(m_rtMinTrack.left, m_rtMinTrack.top + m_rtMinBtn.height,
-               m_rtMinTrack.width, fMinTrackHeight);
-      return;
-    }
-
-    FX_FLOAT fMinTrackWidth = m_rtMinTrack.width - fW - m_rtMinBtn.width + 2;
-    fMinTrackWidth = (fMinTrackWidth >= 0.0f) ? fMinTrackWidth : 0.0f;
-    rect.Set(m_rtMinTrack.left + m_rtMinBtn.width - 1, m_rtMinTrack.top,
-             fMinTrackWidth, m_rtMinTrack.height);
-    return;
-  }
-
-  if (bVert) {
-    FX_FLOAT fMaxTrackHeight = m_rtMaxTrack.height - fH - m_rtMaxBtn.height;
-    fMaxTrackHeight = (fMaxTrackHeight >= 0.0f) ? fMaxTrackHeight : 0.0f;
-    rect.Set(m_rtMaxTrack.left, m_rtMaxTrack.top + fH, m_rtMaxTrack.width,
-             fMaxTrackHeight);
-    return;
-  }
-
-  FX_FLOAT fMaxTrackWidth = m_rtMaxTrack.width - fW - m_rtMaxBtn.width + 2;
-  fMaxTrackWidth = (fMaxTrackWidth >= 0.0f) ? fMaxTrackWidth : 0.0f;
-  rect.Set(m_rtMaxTrack.left + fW, m_rtMaxTrack.top, fMaxTrackWidth,
-           m_rtMaxTrack.height);
-}
-
-bool IFWL_ScrollBar::SendEvent() {
-  if (m_iMinButtonState == CFWL_PartState_Pressed) {
-    DoScroll(FWL_SCBCODE::StepBackward, m_fTrackPos);
-    return false;
-  }
-  if (m_iMaxButtonState == CFWL_PartState_Pressed) {
-    DoScroll(FWL_SCBCODE::StepForward, m_fTrackPos);
-    return false;
-  }
-  if (m_iMinTrackState == CFWL_PartState_Pressed) {
-    DoScroll(FWL_SCBCODE::PageBackward, m_fTrackPos);
-    return m_rtThumb.Contains(m_cpTrackPointX, m_cpTrackPointY);
-  }
-  if (m_iMaxTrackState == CFWL_PartState_Pressed) {
-    DoScroll(FWL_SCBCODE::PageForward, m_fTrackPos);
-    return m_rtThumb.Contains(m_cpTrackPointX, m_cpTrackPointY);
-  }
-  if (m_iMouseWheel) {
-    FWL_SCBCODE dwCode = m_iMouseWheel < 0 ? FWL_SCBCODE::StepForward
-                                           : FWL_SCBCODE::StepBackward;
-    DoScroll(dwCode, m_fTrackPos);
-  }
-  return true;
-}
-
-bool IFWL_ScrollBar::OnScroll(FWL_SCBCODE dwCode, FX_FLOAT fPos) {
-  bool bRet = true;
-  CFWL_EvtScroll ev;
-  ev.m_iScrollCode = dwCode;
-  ev.m_pSrcTarget = this;
-  ev.m_fPos = fPos;
-  ev.m_pRet = &bRet;
-  DispatchEvent(&ev);
-  return bRet;
-}
-
-void IFWL_ScrollBar::OnProcessMessage(CFWL_Message* pMessage) {
-  if (!pMessage)
-    return;
-
-  CFWL_MessageType dwMsgCode = pMessage->GetClassID();
-  if (dwMsgCode == CFWL_MessageType::Mouse) {
-    CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage);
-    switch (pMsg->m_dwCmd) {
-      case FWL_MouseCommand::LeftButtonDown:
-        OnLButtonDown(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy);
-        break;
-      case FWL_MouseCommand::LeftButtonUp:
-        OnLButtonUp(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy);
-        break;
-      case FWL_MouseCommand::Move:
-        OnMouseMove(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy);
-        break;
-      case FWL_MouseCommand::Leave:
-        OnMouseLeave();
-        break;
-      default:
-        break;
-    }
-  } else if (dwMsgCode == CFWL_MessageType::MouseWheel) {
-    CFWL_MsgMouseWheel* pMsg = static_cast<CFWL_MsgMouseWheel*>(pMessage);
-    OnMouseWheel(pMsg->m_fx, pMsg->m_fy, pMsg->m_dwFlags, pMsg->m_fDeltaX,
-                 pMsg->m_fDeltaY);
-  }
-}
-
-void IFWL_ScrollBar::OnDrawWidget(CFX_Graphics* pGraphics,
-                                  const CFX_Matrix* pMatrix) {
-  DrawWidget(pGraphics, pMatrix);
-}
-
-void IFWL_ScrollBar::OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy) {
-  if (!IsEnabled())
-    return;
-
-  m_bMouseDown = true;
-  SetGrab(true);
-  m_cpTrackPointX = fx;
-  m_cpTrackPointY = fy;
-  m_fLastTrackPos = m_fTrackPos;
-  if (m_rtMinBtn.Contains(fx, fy))
-    DoMouseDown(0, m_rtMinBtn, m_iMinButtonState, fx, fy);
-  else if (m_rtThumb.Contains(fx, fy))
-    DoMouseDown(1, m_rtThumb, m_iThumbButtonState, fx, fy);
-  else if (m_rtMaxBtn.Contains(fx, fy))
-    DoMouseDown(2, m_rtMaxBtn, m_iMaxButtonState, fx, fy);
-  else if (m_rtMinTrack.Contains(fx, fy))
-    DoMouseDown(3, m_rtMinTrack, m_iMinTrackState, fx, fy);
-  else
-    DoMouseDown(4, m_rtMaxTrack, m_iMaxTrackState, fx, fy);
-
-  if (!SendEvent())
-    m_pTimerInfo = m_Timer.StartTimer(FWL_SCROLLBAR_Elapse, true);
-}
-
-void IFWL_ScrollBar::OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy) {
-  m_pTimerInfo->StopTimer();
-  m_bMouseDown = false;
-  DoMouseUp(0, m_rtMinBtn, m_iMinButtonState, fx, fy);
-  DoMouseUp(1, m_rtThumb, m_iThumbButtonState, fx, fy);
-  DoMouseUp(2, m_rtMaxBtn, m_iMaxButtonState, fx, fy);
-  DoMouseUp(3, m_rtMinTrack, m_iMinTrackState, fx, fy);
-  DoMouseUp(4, m_rtMaxTrack, m_iMaxTrackState, fx, fy);
-  SetGrab(false);
-}
-
-void IFWL_ScrollBar::OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy) {
-  DoMouseMove(0, m_rtMinBtn, m_iMinButtonState, fx, fy);
-  DoMouseMove(1, m_rtThumb, m_iThumbButtonState, fx, fy);
-  DoMouseMove(2, m_rtMaxBtn, m_iMaxButtonState, fx, fy);
-  DoMouseMove(3, m_rtMinTrack, m_iMinTrackState, fx, fy);
-  DoMouseMove(4, m_rtMaxTrack, m_iMaxTrackState, fx, fy);
-}
-
-void IFWL_ScrollBar::OnMouseLeave() {
-  DoMouseLeave(0, m_rtMinBtn, m_iMinButtonState);
-  DoMouseLeave(1, m_rtThumb, m_iThumbButtonState);
-  DoMouseLeave(2, m_rtMaxBtn, m_iMaxButtonState);
-  DoMouseLeave(3, m_rtMinTrack, m_iMinTrackState);
-  DoMouseLeave(4, m_rtMaxTrack, m_iMaxTrackState);
-}
-
-void IFWL_ScrollBar::OnMouseWheel(FX_FLOAT fx,
-                                  FX_FLOAT fy,
-                                  uint32_t dwFlags,
-                                  FX_FLOAT fDeltaX,
-                                  FX_FLOAT fDeltaY) {
-  m_iMouseWheel = (int32_t)fDeltaX;
-  SendEvent();
-  m_iMouseWheel = 0;
-}
-
-void IFWL_ScrollBar::DoMouseDown(int32_t iItem,
-                                 const CFX_RectF& rtItem,
-                                 int32_t& iState,
-                                 FX_FLOAT fx,
-                                 FX_FLOAT fy) {
-  if (!rtItem.Contains(fx, fy))
-    return;
-  if (iState == CFWL_PartState_Pressed)
-    return;
-
-  iState = CFWL_PartState_Pressed;
-  Repaint(&rtItem);
-}
-
-void IFWL_ScrollBar::DoMouseUp(int32_t iItem,
-                               const CFX_RectF& rtItem,
-                               int32_t& iState,
-                               FX_FLOAT fx,
-                               FX_FLOAT fy) {
-  int32_t iNewState =
-      rtItem.Contains(fx, fy) ? CFWL_PartState_Hovered : CFWL_PartState_Normal;
-  if (iState == iNewState)
-    return;
-
-  iState = iNewState;
-  Repaint(&rtItem);
-  OnScroll(FWL_SCBCODE::EndScroll, m_fTrackPos);
-}
-
-void IFWL_ScrollBar::DoMouseMove(int32_t iItem,
-                                 const CFX_RectF& rtItem,
-                                 int32_t& iState,
-                                 FX_FLOAT fx,
-                                 FX_FLOAT fy) {
-  if (!m_bMouseDown) {
-    int32_t iNewState = rtItem.Contains(fx, fy) ? CFWL_PartState_Hovered
-                                                : CFWL_PartState_Normal;
-    if (iState == iNewState)
-      return;
-
-    iState = iNewState;
-    Repaint(&rtItem);
-  } else if ((2 == iItem) && (m_iThumbButtonState == CFWL_PartState_Pressed)) {
-    FX_FLOAT fPos = GetTrackPointPos(fx, fy);
-    m_fTrackPos = fPos;
-    OnScroll(FWL_SCBCODE::TrackPos, fPos);
-  }
-}
-
-void IFWL_ScrollBar::DoMouseLeave(int32_t iItem,
-                                  const CFX_RectF& rtItem,
-                                  int32_t& iState) {
-  if (iState == CFWL_PartState_Normal)
-    return;
-
-  iState = CFWL_PartState_Normal;
-  Repaint(&rtItem);
-}
-
-void IFWL_ScrollBar::DoMouseHover(int32_t iItem,
-                                  const CFX_RectF& rtItem,
-                                  int32_t& iState) {
-  if (iState == CFWL_PartState_Hovered)
-    return;
-
-  iState = CFWL_PartState_Hovered;
-  Repaint(&rtItem);
-}
-
-IFWL_ScrollBar::Timer::Timer(IFWL_ScrollBar* pToolTip) : CFWL_Timer(pToolTip) {}
-
-void IFWL_ScrollBar::Timer::Run(CFWL_TimerInfo* pTimerInfo) {
-  IFWL_ScrollBar* pButton = static_cast<IFWL_ScrollBar*>(m_pWidget);
-
-  if (pButton->m_pTimerInfo)
-    pButton->m_pTimerInfo->StopTimer();
-
-  if (!pButton->SendEvent())
-    pButton->m_pTimerInfo = StartTimer(0, true);
-}