207 lines
7.5 KiB
C++
207 lines
7.5 KiB
C++
// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FXFA_CXFA_FFWIDGET_H_
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#define XFA_FXFA_CXFA_FFWIDGET_H_
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#include <vector>
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#include "core/fpdfdoc/cpdf_formfield.h"
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#include "core/fxcodec/fx_codec_def.h"
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#include "core/fxcrt/observed_ptr.h"
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#include "core/fxge/cfx_graphstatedata.h"
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#include "xfa/fwl/cfwl_app.h"
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#include "xfa/fwl/cfwl_messagemouse.h"
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#include "xfa/fwl/cfwl_widget.h"
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#include "xfa/fxfa/cxfa_eventparam.h"
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#include "xfa/fxfa/fxfa.h"
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#include "xfa/fxfa/layout/cxfa_contentlayoutitem.h"
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class CFX_DIBitmap;
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class CXFA_Box;
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class CXFA_FFApp;
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class CXFA_FFDoc;
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class CXFA_FFDocView;
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class CXFA_FFField;
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class CXFA_FFPageView;
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class CXFA_FFWidgetHandler;
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class CXFA_Graphics;
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class CXFA_Image;
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class CXFA_Margin;
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enum class FWL_WidgetHit;
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inline float XFA_UnitPx2Pt(float fPx, float fDpi) {
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return fPx * 72.0f / fDpi;
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}
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constexpr float kXFAWidgetPrecision = 0.001f;
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void XFA_DrawImage(CXFA_Graphics* pGS,
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const CFX_RectF& rtImage,
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const CFX_Matrix& matrix,
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const RetainPtr<CFX_DIBitmap>& pDIBitmap,
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XFA_AttributeValue iAspect,
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const CFX_Size& dpi,
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XFA_AttributeValue iHorzAlign = XFA_AttributeValue::Left,
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XFA_AttributeValue iVertAlign = XFA_AttributeValue::Top);
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RetainPtr<CFX_DIBitmap> XFA_LoadImageFromBuffer(
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const RetainPtr<IFX_SeekableReadStream>& pImageFileRead,
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FXCODEC_IMAGE_TYPE type,
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int32_t& iImageXDpi,
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int32_t& iImageYDpi);
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void XFA_RectWithoutMargin(CFX_RectF* rt, const CXFA_Margin* margin);
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CXFA_FFWidget* XFA_GetWidgetFromLayoutItem(CXFA_LayoutItem* pLayoutItem);
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class CXFA_CalcData {
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public:
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CXFA_CalcData();
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~CXFA_CalcData();
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std::vector<CXFA_Node*> m_Globals;
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};
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class CXFA_FFWidget : public Observable, public CFWL_Widget::AdapterIface {
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public:
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enum FocusOption { kDoNotDrawFocus = 0, kDrawFocus };
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enum HighlightOption { kNoHighlight = 0, kHighlight };
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explicit CXFA_FFWidget(CXFA_Node* pNode);
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~CXFA_FFWidget() override;
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// CFWL_Widget::AdapterIface:
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CFX_Matrix GetRotateMatrix() override;
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void DisplayCaret(bool bVisible, const CFX_RectF* pRtAnchor) override;
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void GetBorderColorAndThickness(FX_ARGB* cr, float* fWidth) override;
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virtual CXFA_FFField* AsField();
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virtual CFX_RectF GetBBox(FocusOption focus);
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virtual void RenderWidget(CXFA_Graphics* pGS,
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const CFX_Matrix& matrix,
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HighlightOption highlight);
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virtual bool IsLoaded();
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virtual bool LoadWidget();
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virtual bool PerformLayout();
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virtual bool UpdateFWLData();
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virtual void UpdateWidgetProperty();
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// |command| must be LeftButtonDown or RightButtonDown.
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virtual bool AcceptsFocusOnButtonDown(uint32_t dwFlags,
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const CFX_PointF& point,
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FWL_MouseCommand command);
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// Caution: Returning false from an On* method may mean |this| is destroyed.
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virtual bool OnMouseEnter() WARN_UNUSED_RESULT;
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virtual bool OnMouseExit() WARN_UNUSED_RESULT;
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virtual bool OnLButtonDown(uint32_t dwFlags,
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const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual bool OnLButtonUp(uint32_t dwFlags,
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const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual bool OnLButtonDblClk(uint32_t dwFlags,
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const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual bool OnMouseMove(uint32_t dwFlags,
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const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual bool OnMouseWheel(uint32_t dwFlags,
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int16_t zDelta,
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const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual bool OnRButtonDown(uint32_t dwFlags,
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const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual bool OnRButtonUp(uint32_t dwFlags,
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const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual bool OnRButtonDblClk(uint32_t dwFlags,
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const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual bool OnSetFocus(CXFA_FFWidget* pOldWidget) WARN_UNUSED_RESULT;
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virtual bool OnKillFocus(CXFA_FFWidget* pNewWidget) WARN_UNUSED_RESULT;
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virtual bool OnKeyDown(uint32_t dwKeyCode,
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uint32_t dwFlags) WARN_UNUSED_RESULT;
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virtual bool OnKeyUp(uint32_t dwKeyCode, uint32_t dwFlags) WARN_UNUSED_RESULT;
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virtual bool OnChar(uint32_t dwChar, uint32_t dwFlags) WARN_UNUSED_RESULT;
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virtual bool OnSetCursor(const CFX_PointF& point) WARN_UNUSED_RESULT;
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virtual FWL_WidgetHit HitTest(const CFX_PointF& point);
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virtual bool CanUndo();
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virtual bool CanRedo();
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virtual bool Undo();
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virtual bool Redo();
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virtual bool CanCopy();
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virtual bool CanCut();
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virtual bool CanPaste();
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virtual bool CanSelectAll();
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virtual bool CanDelete();
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virtual bool CanDeSelect();
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virtual Optional<WideString> Copy();
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virtual Optional<WideString> Cut();
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virtual bool Paste(const WideString& wsPaste);
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virtual void SelectAll();
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virtual void Delete();
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virtual void DeSelect();
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virtual WideString GetText();
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virtual FormFieldType GetFormFieldType();
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CXFA_Node* GetNode() const { return m_pNode.Get(); }
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CXFA_ContentLayoutItem* GetLayoutItem() const { return m_pLayoutItem.Get(); }
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void SetLayoutItem(CXFA_ContentLayoutItem* pItem) { m_pLayoutItem = pItem; }
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CXFA_FFPageView* GetPageView() const { return m_pPageView.Get(); }
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void SetPageView(CXFA_FFPageView* pPageView) { m_pPageView = pPageView; }
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CXFA_FFDocView* GetDocView() const { return m_pDocView.Get(); }
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void SetDocView(CXFA_FFDocView* pDocView) { m_pDocView = pDocView; }
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CXFA_FFWidget* GetNextFFWidget() const;
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const CFX_RectF& GetWidgetRect() const;
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const CFX_RectF& RecacheWidgetRect() const;
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void ModifyStatus(uint32_t dwAdded, uint32_t dwRemoved);
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CXFA_FFDoc* GetDoc();
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CXFA_FFApp* GetApp();
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IXFA_AppProvider* GetAppProvider();
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void InvalidateRect();
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bool IsFocused() const {
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return GetLayoutItem()->TestStatusBits(XFA_WidgetStatus_Focused);
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}
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CFX_PointF Rotate2Normal(const CFX_PointF& point);
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bool IsLayoutRectEmpty();
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CXFA_LayoutItem* GetParent();
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bool IsAncestorOf(CXFA_FFWidget* pWidget);
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const CFWL_App* GetFWLApp();
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bool HasEventUnderHandler(XFA_EVENTTYPE eEventType,
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CXFA_FFWidgetHandler* pHandler);
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bool ProcessEventUnderHandler(CXFA_EventParam* params,
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CXFA_FFWidgetHandler* pHandler);
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protected:
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virtual bool PtInActiveRect(const CFX_PointF& point);
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void DrawBorder(CXFA_Graphics* pGS,
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CXFA_Box* box,
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const CFX_RectF& rtBorder,
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const CFX_Matrix& matrix);
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void DrawBorderWithFlag(CXFA_Graphics* pGS,
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CXFA_Box* box,
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const CFX_RectF& rtBorder,
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const CFX_Matrix& matrix,
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bool forceRound);
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CFX_RectF GetRectWithoutRotate();
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bool HasVisibleStatus() const;
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void EventKillFocus();
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bool IsButtonDown();
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void SetButtonDown(bool bSet);
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UnownedPtr<CXFA_ContentLayoutItem> m_pLayoutItem;
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UnownedPtr<CXFA_FFDocView> m_pDocView;
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UnownedPtr<CXFA_FFPageView> m_pPageView;
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UnownedPtr<CXFA_Node> const m_pNode;
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mutable CFX_RectF m_rtWidget;
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};
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inline CXFA_FFField* ToField(CXFA_FFWidget* widget) {
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return widget ? widget->AsField() : nullptr;
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}
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#endif // XFA_FXFA_CXFA_FFWIDGET_H_
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