Move xfa/fwl/core to xfa/fwl.

xfa/fwl/core/cfwl_widgetmgr.cpp

Index: xfa/fwl/core/cfwl_widgetmgr.cpp
diff --git a/xfa/fwl/core/cfwl_widgetmgr.cpp b/xfa/fwl/core/cfwl_widgetmgr.cpp
deleted file mode 100644
index 5bcef7b7df5ab6366812f653dd7f5f67ba04530e..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/cfwl_widgetmgr.cpp
+++ /dev/null
@@ -1,732 +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/cfwl_widgetmgr.h"
-
-#include <utility>
-
-#include "third_party/base/ptr_util.h"
-#include "xfa/fwl/core/cfwl_app.h"
-#include "xfa/fwl/core/cfwl_form.h"
-#include "xfa/fwl/core/cfwl_notedriver.h"
-#include "xfa/fxfa/app/xfa_fwladapter.h"
-#include "xfa/fxfa/xfa_ffapp.h"
-
-namespace {
-
-const int kNeedRepaintHitPoints = 12;
-const int kNeedRepaintHitPiece = 3;
-
-struct FWL_NEEDREPAINTHITDATA {
-  CFX_PointF hitPoint;
-  bool bNotNeedRepaint;
-  bool bNotContainByDirty;
-};
-
-}  // namespace
-
-bool FWL_UseOffscreen(CFWL_Widget* pWidget) {
-#if (_FX_OS_ == _FX_MACOSX_)
-  return false;
-#else
-  return !!(pWidget->GetStyles() & FWL_WGTSTYLE_Offscreen);
-#endif
-}
-
-CFWL_WidgetMgr::CFWL_WidgetMgr(CXFA_FFApp* pAdapterNative)
-    : m_dwCapability(0), m_pAdapter(pAdapterNative->GetWidgetMgr(this)) {
-  ASSERT(m_pAdapter);
-  m_mapWidgetItem[nullptr] = pdfium::MakeUnique<Item>();
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
-  m_rtScreen.Reset();
-#endif
-}
-
-CFWL_WidgetMgr::~CFWL_WidgetMgr() {}
-
-CFWL_Widget* CFWL_WidgetMgr::GetParentWidget(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  return pItem && pItem->pParent ? pItem->pParent->pWidget : nullptr;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetOwnerWidget(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  return pItem && pItem->pOwner ? pItem->pOwner->pWidget : nullptr;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetFirstSiblingWidget(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  if (!pItem)
-    return nullptr;
-
-  pItem = pItem->pPrevious;
-  while (pItem && pItem->pPrevious)
-    pItem = pItem->pPrevious;
-  return pItem ? pItem->pWidget : nullptr;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetPriorSiblingWidget(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  return pItem && pItem->pPrevious ? pItem->pPrevious->pWidget : nullptr;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetNextSiblingWidget(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  return pItem && pItem->pNext ? pItem->pNext->pWidget : nullptr;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetFirstChildWidget(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  return pItem && pItem->pChild ? pItem->pChild->pWidget : nullptr;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetLastChildWidget(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  if (!pItem)
-    return nullptr;
-
-  pItem = pItem->pChild;
-  while (pItem && pItem->pNext)
-    pItem = pItem->pNext;
-  return pItem ? pItem->pWidget : nullptr;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetSystemFormWidget(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  while (pItem) {
-    if (IsAbleNative(pItem->pWidget))
-      return pItem->pWidget;
-    pItem = pItem->pParent;
-  }
-  return nullptr;
-}
-
-void CFWL_WidgetMgr::AppendWidget(CFWL_Widget* pWidget) {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  if (!pItem)
-    return;
-  if (!pItem->pParent)
-    return;
-
-  Item* pChild = pItem->pParent->pChild;
-  int32_t i = 0;
-  while (pChild) {
-    if (pChild == pItem) {
-      if (pChild->pPrevious)
-        pChild->pPrevious->pNext = pChild->pNext;
-      if (pChild->pNext)
-        pChild->pNext->pPrevious = pChild->pPrevious;
-      if (pItem->pParent->pChild == pItem)
-        pItem->pParent->pChild = pItem->pNext;
-
-      pItem->pNext = nullptr;
-      pItem->pPrevious = nullptr;
-      break;
-    }
-    if (!pChild->pNext)
-      break;
-
-    pChild = pChild->pNext;
-    ++i;
-  }
-
-  pChild = pItem->pParent->pChild;
-  if (pChild) {
-    while (pChild->pNext)
-      pChild = pChild->pNext;
-
-    pChild->pNext = pItem;
-    pItem->pPrevious = pChild;
-  } else {
-    pItem->pParent->pChild = pItem;
-    pItem->pPrevious = nullptr;
-  }
-  pItem->pNext = nullptr;
-}
-
-void CFWL_WidgetMgr::RepaintWidget(CFWL_Widget* pWidget,
-                                   const CFX_RectF* pRect) {
-  if (!m_pAdapter)
-    return;
-
-  CFWL_Widget* pNative = pWidget;
-  CFX_RectF rect(*pRect);
-  if (IsFormDisabled()) {
-    CFWL_Widget* pOuter = pWidget->GetOuter();
-    while (pOuter) {
-      CFX_RectF rtTemp = pNative->GetWidgetRect();
-      rect.left += rtTemp.left;
-      rect.top += rtTemp.top;
-      pNative = pOuter;
-      pOuter = pOuter->GetOuter();
-    }
-  } else if (!IsAbleNative(pWidget)) {
-    pNative = GetSystemFormWidget(pWidget);
-    if (!pNative)
-      return;
-
-    pWidget->TransformTo(pNative, rect.left, rect.top);
-  }
-  AddRedrawCounts(pNative);
-  m_pAdapter->RepaintWidget(pNative, &rect);
-}
-
-void CFWL_WidgetMgr::InsertWidget(CFWL_Widget* pParent, CFWL_Widget* pChild) {
-  Item* pParentItem = GetWidgetMgrItem(pParent);
-  if (!pParentItem) {
-    auto item = pdfium::MakeUnique<Item>(pParent);
-    pParentItem = item.get();
-    m_mapWidgetItem[pParent] = std::move(item);
-
-    pParentItem->pParent = GetWidgetMgrItem(nullptr);
-    AppendWidget(pParent);
-  }
-
-  Item* pItem = GetWidgetMgrItem(pChild);
-  if (!pItem) {
-    auto item = pdfium::MakeUnique<Item>(pChild);
-    pItem = item.get();
-    m_mapWidgetItem[pChild] = std::move(item);
-  }
-  if (pItem->pParent && pItem->pParent != pParentItem) {
-    if (pItem->pPrevious)
-      pItem->pPrevious->pNext = pItem->pNext;
-    if (pItem->pNext)
-      pItem->pNext->pPrevious = pItem->pPrevious;
-    if (pItem->pParent->pChild == pItem)
-      pItem->pParent->pChild = pItem->pNext;
-  }
-  pItem->pParent = pParentItem;
-  AppendWidget(pChild);
-}
-
-void CFWL_WidgetMgr::RemoveWidget(CFWL_Widget* pWidget) {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  if (!pItem)
-    return;
-  if (pItem->pPrevious)
-    pItem->pPrevious->pNext = pItem->pNext;
-  if (pItem->pNext)
-    pItem->pNext->pPrevious = pItem->pPrevious;
-  if (pItem->pParent && pItem->pParent->pChild == pItem)
-    pItem->pParent->pChild = pItem->pNext;
-
-  Item* pChild = pItem->pChild;
-  while (pChild) {
-    Item* pNext = pChild->pNext;
-    RemoveWidget(pChild->pWidget);
-    pChild = pNext;
-  }
-  m_mapWidgetItem.erase(pWidget);
-}
-
-void CFWL_WidgetMgr::SetOwner(CFWL_Widget* pOwner, CFWL_Widget* pOwned) {
-  Item* pParentItem = GetWidgetMgrItem(pOwner);
-  if (!pParentItem) {
-    auto item = pdfium::MakeUnique<Item>(pOwner);
-    pParentItem = item.get();
-    m_mapWidgetItem[pOwner] = std::move(item);
-
-    pParentItem->pParent = GetWidgetMgrItem(nullptr);
-    AppendWidget(pOwner);
-  }
-
-  Item* pItem = GetWidgetMgrItem(pOwned);
-  if (!pItem) {
-    auto item = pdfium::MakeUnique<Item>(pOwned);
-    pItem = item.get();
-    m_mapWidgetItem[pOwned] = std::move(item);
-  }
-  pItem->pOwner = pParentItem;
-}
-void CFWL_WidgetMgr::SetParent(CFWL_Widget* pParent, CFWL_Widget* pChild) {
-  Item* pParentItem = GetWidgetMgrItem(pParent);
-  Item* pItem = GetWidgetMgrItem(pChild);
-  if (!pItem)
-    return;
-  if (pItem->pParent && pItem->pParent != pParentItem) {
-    if (pItem->pPrevious)
-      pItem->pPrevious->pNext = pItem->pNext;
-    if (pItem->pNext)
-      pItem->pNext->pPrevious = pItem->pPrevious;
-    if (pItem->pParent->pChild == pItem)
-      pItem->pParent->pChild = pItem->pNext;
-
-    pItem->pNext = nullptr;
-    pItem->pPrevious = nullptr;
-  }
-  pItem->pParent = pParentItem;
-  AppendWidget(pChild);
-}
-
-void CFWL_WidgetMgr::SetWidgetRect_Native(CFWL_Widget* pWidget,
-                                          const CFX_RectF& rect) {
-  if (!FWL_UseOffscreen(pWidget))
-    return;
-
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  pItem->iRedrawCounter++;
-  if (pItem->pOffscreen) {
-    CFX_RenderDevice* pDevice = pItem->pOffscreen->GetRenderDevice();
-    if (pDevice && pDevice->GetBitmap()) {
-      CFX_DIBitmap* pBitmap = pDevice->GetBitmap();
-      if (pBitmap->GetWidth() - rect.width > 1 ||
-          pBitmap->GetHeight() - rect.height > 1) {
-        pItem->pOffscreen.reset();
-      }
-    }
-  }
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
-  pItem->bOutsideChanged = !m_rtScreen.Contains(rect);
-#endif
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetWidgetAtPoint(CFWL_Widget* parent,
-                                              FX_FLOAT x,
-                                              FX_FLOAT y) {
-  if (!parent)
-    return nullptr;
-
-  FX_FLOAT x1;
-  FX_FLOAT y1;
-  CFWL_Widget* child = GetLastChildWidget(parent);
-  while (child) {
-    if ((child->GetStates() & FWL_WGTSTATE_Invisible) == 0) {
-      x1 = x;
-      y1 = y;
-      CFX_Matrix matrixOnParent;
-      child->GetMatrix(matrixOnParent, false);
-      CFX_Matrix m;
-      m.SetIdentity();
-      m.SetReverse(matrixOnParent);
-      m.TransformPoint(x1, y1);
-      CFX_RectF bounds = child->GetWidgetRect();
-      if (bounds.Contains(x1, y1)) {
-        x1 -= bounds.left;
-        y1 -= bounds.top;
-        return GetWidgetAtPoint(child, x1, y1);
-      }
-    }
-    child = GetPriorSiblingWidget(child);
-  }
-  return parent;
-}
-
-void CFWL_WidgetMgr::NotifySizeChanged(CFWL_Widget* pForm,
-                                       FX_FLOAT fx,
-                                       FX_FLOAT fy) {
-  if (FWL_UseOffscreen(pForm))
-    GetWidgetMgrItem(pForm)->pOffscreen.reset();
-}
-
-CFWL_Widget* CFWL_WidgetMgr::NextTab(CFWL_Widget* parent,
-                                     CFWL_Widget* focus,
-                                     bool& bFind) {
-  CFWL_WidgetMgr* pMgr = parent->GetOwnerApp()->GetWidgetMgr();
-  CFWL_Widget* child = pMgr->GetFirstChildWidget(parent);
-  while (child) {
-    if (focus == child)
-      bFind = true;
-
-    if ((child->GetStyles() & FWL_WGTSTYLE_TabStop) &&
-        (!focus || (focus != child && bFind))) {
-      return child;
-    }
-    CFWL_Widget* bRet = NextTab(child, focus, bFind);
-    if (bRet)
-      return bRet;
-
-    child = pMgr->GetNextSiblingWidget(child);
-  }
-  return nullptr;
-}
-
-int32_t CFWL_WidgetMgr::CountRadioButtonGroup(CFWL_Widget* pFirst) const {
-  int32_t iRet = 0;
-  CFWL_Widget* pChild = pFirst;
-  while (pChild) {
-    pChild = GetNextSiblingWidget(pChild);
-    ++iRet;
-  }
-  return iRet;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetRadioButtonGroupHeader(
-    CFWL_Widget* pRadioButton) const {
-  CFWL_Widget* pNext = pRadioButton;
-  if (pNext && (pNext->GetStyles() & FWL_WGTSTYLE_Group))
-    return pNext;
-  return nullptr;
-}
-
-void CFWL_WidgetMgr::GetSameGroupRadioButton(
-    CFWL_Widget* pRadioButton,
-    CFX_ArrayTemplate<CFWL_Widget*>& group) const {
-  CFWL_Widget* pFirst = GetFirstSiblingWidget(pRadioButton);
-  if (!pFirst)
-    pFirst = pRadioButton;
-
-  int32_t iGroup = CountRadioButtonGroup(pFirst);
-  if (iGroup < 2)
-    return;
-  group.Add(GetRadioButtonGroupHeader(pRadioButton));
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetDefaultButton(CFWL_Widget* pParent) const {
-  if ((pParent->GetClassID() == FWL_Type::PushButton) &&
-      (pParent->GetStates() & (1 << (FWL_WGTSTATE_MAX + 2)))) {
-    return pParent;
-  }
-
-  CFWL_Widget* child =
-      pParent->GetOwnerApp()->GetWidgetMgr()->GetFirstChildWidget(pParent);
-  while (child) {
-    if ((child->GetClassID() == FWL_Type::PushButton) &&
-        (child->GetStates() & (1 << (FWL_WGTSTATE_MAX + 2)))) {
-      return child;
-    }
-    if (CFWL_Widget* find = GetDefaultButton(child))
-      return find;
-
-    child = child->GetOwnerApp()->GetWidgetMgr()->GetNextSiblingWidget(child);
-  }
-  return nullptr;
-}
-
-void CFWL_WidgetMgr::AddRedrawCounts(CFWL_Widget* pWidget) {
-  GetWidgetMgrItem(pWidget)->iRedrawCounter++;
-}
-
-void CFWL_WidgetMgr::ResetRedrawCounts(CFWL_Widget* pWidget) {
-  GetWidgetMgrItem(pWidget)->iRedrawCounter = 0;
-}
-
-CFWL_WidgetMgr::Item* CFWL_WidgetMgr::GetWidgetMgrItem(
-    CFWL_Widget* pWidget) const {
-  auto it = m_mapWidgetItem.find(pWidget);
-  return it != m_mapWidgetItem.end() ? static_cast<Item*>(it->second.get())
-                                     : nullptr;
-}
-
-bool CFWL_WidgetMgr::IsAbleNative(CFWL_Widget* pWidget) const {
-  if (!pWidget)
-    return false;
-  if (!pWidget->IsInstance(FX_WSTRC(FWL_CLASS_Form)))
-    return false;
-
-  uint32_t dwStyles = pWidget->GetStyles();
-  return ((dwStyles & FWL_WGTSTYLE_WindowTypeMask) ==
-          FWL_WGTSTYLE_OverLapper) ||
-         (dwStyles & FWL_WGTSTYLE_Popup);
-}
-
-void CFWL_WidgetMgr::GetAdapterPopupPos(CFWL_Widget* pWidget,
-                                        FX_FLOAT fMinHeight,
-                                        FX_FLOAT fMaxHeight,
-                                        const CFX_RectF& rtAnchor,
-                                        CFX_RectF& rtPopup) const {
-  m_pAdapter->GetPopupPos(pWidget, fMinHeight, fMaxHeight, rtAnchor, rtPopup);
-}
-
-void CFWL_WidgetMgr::OnSetCapability(uint32_t dwCapability) {
-  m_dwCapability = dwCapability;
-}
-
-void CFWL_WidgetMgr::OnProcessMessageToForm(CFWL_Message* pMessage) {
-  if (!pMessage)
-    return;
-  if (!pMessage->m_pDstTarget)
-    return;
-
-  CFWL_Widget* pDstWidget = pMessage->m_pDstTarget;
-  const CFWL_App* pApp = pDstWidget->GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pNoteDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  if (!pNoteDriver)
-    return;
-
-  std::unique_ptr<CFWL_Message> pClonedMessage = pMessage->Clone();
-  if (IsFormDisabled())
-    pNoteDriver->ProcessMessage(pClonedMessage.get());
-  else
-    pNoteDriver->QueueMessage(std::move(pClonedMessage));
-
-#if (_FX_OS_ == _FX_MACOSX_)
-  CFWL_NoteLoop* pTopLoop = pNoteDriver->GetTopLoop();
-  if (pTopLoop)
-    pNoteDriver->UnqueueMessage(pTopLoop);
-#endif
-}
-
-void CFWL_WidgetMgr::OnDrawWidget(CFWL_Widget* pWidget,
-                                  CFX_Graphics* pGraphics,
-                                  const CFX_Matrix* pMatrix) {
-  if (!pWidget || !pGraphics)
-    return;
-
-  CFX_Graphics* pTemp = DrawWidgetBefore(pWidget, pGraphics, pMatrix);
-  CFX_RectF clipCopy = pWidget->GetWidgetRect();
-  clipCopy.left = clipCopy.top = 0;
-
-  if (UseOffscreenDirect(pWidget)) {
-    DrawWidgetAfter(pWidget, pGraphics, clipCopy, pMatrix);
-    return;
-  }
-  CFX_RectF clipBounds;
-
-#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_ || \
-    _FX_OS_ == _FX_LINUX_DESKTOP_ || _FX_OS_ == _FX_ANDROID_
-  pWidget->GetDelegate()->OnDrawWidget(pTemp, pMatrix);
-  pGraphics->GetClipRect(clipBounds);
-  clipCopy = clipBounds;
-#elif _FX_OS_ == _FX_MACOSX_
-  if (IsFormDisabled()) {
-    pWidget->GetDelegate()->OnDrawWidget(pTemp, pMatrix);
-    pGraphics->GetClipRect(clipBounds);
-    clipCopy = clipBounds;
-  } else {
-    clipBounds.Set(pMatrix->a, pMatrix->b, pMatrix->c, pMatrix->d);
-    const_cast<CFX_Matrix*>(pMatrix)->SetIdentity();  // FIXME: const cast.
-    pWidget->GetDelegate()->OnDrawWidget(pTemp, pMatrix);
-  }
-#endif  // _FX_OS_ == _FX_MACOSX_
-
-  if (!IsFormDisabled()) {
-    CFX_RectF rtClient;
-    pWidget->GetClientRect(rtClient);
-    clipBounds.Intersect(rtClient);
-  }
-  if (!clipBounds.IsEmpty())
-    DrawChild(pWidget, clipBounds, pTemp, pMatrix);
-
-  DrawWidgetAfter(pWidget, pGraphics, clipCopy, pMatrix);
-  ResetRedrawCounts(pWidget);
-}
-
-void CFWL_WidgetMgr::DrawChild(CFWL_Widget* parent,
-                               const CFX_RectF& rtClip,
-                               CFX_Graphics* pGraphics,
-                               const CFX_Matrix* pMatrix) {
-  if (!parent)
-    return;
-
-  bool bFormDisable = IsFormDisabled();
-  CFWL_Widget* pNextChild = GetFirstChildWidget(parent);
-  while (pNextChild) {
-    CFWL_Widget* child = pNextChild;
-    pNextChild = GetNextSiblingWidget(child);
-    if (child->GetStates() & FWL_WGTSTATE_Invisible)
-      continue;
-
-    CFX_RectF rtWidget = child->GetWidgetRect();
-    if (rtWidget.IsEmpty())
-      continue;
-
-    CFX_Matrix widgetMatrix;
-    CFX_RectF clipBounds(rtWidget);
-    if (!bFormDisable)
-      child->GetMatrix(widgetMatrix, true);
-    if (pMatrix)
-      widgetMatrix.Concat(*pMatrix);
-
-    if (!bFormDisable) {
-      widgetMatrix.TransformPoint(clipBounds.left, clipBounds.top);
-      clipBounds.Intersect(rtClip);
-      if (clipBounds.IsEmpty())
-        continue;
-
-      pGraphics->SaveGraphState();
-      pGraphics->SetClipRect(clipBounds);
-    }
-    widgetMatrix.Translate(rtWidget.left, rtWidget.top, true);
-
-    if (IFWL_WidgetDelegate* pDelegate = child->GetDelegate()) {
-      if (IsFormDisabled() || IsNeedRepaint(child, &widgetMatrix, rtClip))
-        pDelegate->OnDrawWidget(pGraphics, &widgetMatrix);
-    }
-    if (!bFormDisable)
-      pGraphics->RestoreGraphState();
-
-    DrawChild(child, clipBounds, pGraphics,
-              bFormDisable ? &widgetMatrix : pMatrix);
-    child = GetNextSiblingWidget(child);
-  }
-}
-
-CFX_Graphics* CFWL_WidgetMgr::DrawWidgetBefore(CFWL_Widget* pWidget,
-                                               CFX_Graphics* pGraphics,
-                                               const CFX_Matrix* pMatrix) {
-  if (!FWL_UseOffscreen(pWidget))
-    return pGraphics;
-
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  if (!pItem->pOffscreen) {
-    pItem->pOffscreen.reset(new CFX_Graphics);
-    CFX_RectF rect = pWidget->GetWidgetRect();
-    pItem->pOffscreen->Create((int32_t)rect.width, (int32_t)rect.height,
-                              FXDIB_Argb);
-  }
-  CFX_RectF rect;
-  pGraphics->GetClipRect(rect);
-  pItem->pOffscreen->SetClipRect(rect);
-  return pItem->pOffscreen.get();
-}
-
-void CFWL_WidgetMgr::DrawWidgetAfter(CFWL_Widget* pWidget,
-                                     CFX_Graphics* pGraphics,
-                                     CFX_RectF& rtClip,
-                                     const CFX_Matrix* pMatrix) {
-  if (FWL_UseOffscreen(pWidget)) {
-    Item* pItem = GetWidgetMgrItem(pWidget);
-    pGraphics->Transfer(pItem->pOffscreen.get(), rtClip.left, rtClip.top,
-                        rtClip, pMatrix);
-#ifdef _WIN32
-    pItem->pOffscreen->ClearClip();
-#endif
-  }
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  pItem->iRedrawCounter = 0;
-}
-
-bool CFWL_WidgetMgr::IsNeedRepaint(CFWL_Widget* pWidget,
-                                   CFX_Matrix* pMatrix,
-                                   const CFX_RectF& rtDirty) {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  if (pItem && pItem->iRedrawCounter > 0) {
-    pItem->iRedrawCounter = 0;
-    return true;
-  }
-
-  CFX_RectF rtWidget = pWidget->GetWidgetRect();
-  rtWidget.left = rtWidget.top = 0;
-  pMatrix->TransformRect(rtWidget);
-  if (!rtWidget.IntersectWith(rtDirty))
-    return false;
-
-  CFWL_Widget* pChild =
-      pWidget->GetOwnerApp()->GetWidgetMgr()->GetFirstChildWidget(pWidget);
-  if (!pChild)
-    return true;
-
-  CFX_RectF rtChilds;
-  rtChilds.Empty();
-  bool bChildIntersectWithDirty = false;
-  bool bOrginPtIntersectWidthChild = false;
-  bool bOrginPtIntersectWidthDirty =
-      rtDirty.Contains(rtWidget.left, rtWidget.top);
-  static FWL_NEEDREPAINTHITDATA hitPoint[kNeedRepaintHitPoints];
-  FXSYS_memset(hitPoint, 0, sizeof(hitPoint));
-  FX_FLOAT fxPiece = rtWidget.width / kNeedRepaintHitPiece;
-  FX_FLOAT fyPiece = rtWidget.height / kNeedRepaintHitPiece;
-  hitPoint[2].hitPoint.x = hitPoint[6].hitPoint.x = rtWidget.left;
-  hitPoint[0].hitPoint.x = hitPoint[3].hitPoint.x = hitPoint[7].hitPoint.x =
-      hitPoint[10].hitPoint.x = fxPiece + rtWidget.left;
-  hitPoint[1].hitPoint.x = hitPoint[4].hitPoint.x = hitPoint[8].hitPoint.x =
-      hitPoint[11].hitPoint.x = fxPiece * 2 + rtWidget.left;
-  hitPoint[5].hitPoint.x = hitPoint[9].hitPoint.x =
-      rtWidget.width + rtWidget.left;
-  hitPoint[0].hitPoint.y = hitPoint[1].hitPoint.y = rtWidget.top;
-  hitPoint[2].hitPoint.y = hitPoint[3].hitPoint.y = hitPoint[4].hitPoint.y =
-      hitPoint[5].hitPoint.y = fyPiece + rtWidget.top;
-  hitPoint[6].hitPoint.y = hitPoint[7].hitPoint.y = hitPoint[8].hitPoint.y =
-      hitPoint[9].hitPoint.y = fyPiece * 2 + rtWidget.top;
-  hitPoint[10].hitPoint.y = hitPoint[11].hitPoint.y =
-      rtWidget.height + rtWidget.top;
-  do {
-    CFX_RectF rect = pChild->GetWidgetRect();
-    CFX_RectF r = rect;
-    r.left += rtWidget.left;
-    r.top += rtWidget.top;
-    if (r.IsEmpty())
-      continue;
-    if (r.Contains(rtDirty))
-      return false;
-    if (!bChildIntersectWithDirty && r.IntersectWith(rtDirty))
-      bChildIntersectWithDirty = true;
-    if (bOrginPtIntersectWidthDirty && !bOrginPtIntersectWidthChild)
-      bOrginPtIntersectWidthChild = rect.Contains(0, 0);
-
-    if (rtChilds.IsEmpty())
-      rtChilds = rect;
-    else if (!(pChild->GetStates() & FWL_WGTSTATE_Invisible))
-      rtChilds.Union(rect);
-
-    for (int32_t i = 0; i < kNeedRepaintHitPoints; i++) {
-      if (hitPoint[i].bNotContainByDirty || hitPoint[i].bNotNeedRepaint)
-        continue;
-      if (!rtDirty.Contains(hitPoint[i].hitPoint)) {
-        hitPoint[i].bNotContainByDirty = true;
-        continue;
-      }
-      if (r.Contains(hitPoint[i].hitPoint))
-        hitPoint[i].bNotNeedRepaint = true;
-    }
-    pChild =
-        pChild->GetOwnerApp()->GetWidgetMgr()->GetNextSiblingWidget(pChild);
-  } while (pChild);
-
-  if (!bChildIntersectWithDirty)
-    return true;
-  if (bOrginPtIntersectWidthDirty && !bOrginPtIntersectWidthChild)
-    return true;
-  if (rtChilds.IsEmpty())
-    return true;
-
-  int32_t repaintPoint = kNeedRepaintHitPoints;
-  for (int32_t i = 0; i < kNeedRepaintHitPoints; i++) {
-    if (hitPoint[i].bNotNeedRepaint)
-      repaintPoint--;
-  }
-  if (repaintPoint > 0)
-    return true;
-
-  pMatrix->TransformRect(rtChilds);
-  if (rtChilds.Contains(rtDirty) || rtChilds.Contains(rtWidget))
-    return false;
-  return true;
-}
-
-bool CFWL_WidgetMgr::UseOffscreenDirect(CFWL_Widget* pWidget) const {
-  Item* pItem = GetWidgetMgrItem(pWidget);
-  if (!FWL_UseOffscreen(pWidget) || !(pItem->pOffscreen))
-    return false;
-
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
-  if (pItem->bOutsideChanged) {
-    CFX_RectF r = pWidget->GetWidgetRect();
-    CFX_RectF temp(m_rtScreen);
-    temp.Deflate(50, 50);
-    if (!temp.Contains(r))
-      return false;
-
-    pItem->bOutsideChanged = false;
-  }
-#endif
-
-  return pItem->iRedrawCounter == 0;
-}
-
-CFWL_WidgetMgr::Item::Item() : CFWL_WidgetMgr::Item(nullptr) {}
-
-CFWL_WidgetMgr::Item::Item(CFWL_Widget* widget)
-    : pParent(nullptr),
-      pOwner(nullptr),
-      pChild(nullptr),
-      pPrevious(nullptr),
-      pNext(nullptr),
-      pWidget(widget),
-      iRedrawCounter(0)
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
-      ,
-      bOutsideChanged(false)
-#endif
-{
-}
-
-CFWL_WidgetMgr::Item::~Item() {}