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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #ifndef FWL_WIDGETIMP_H_
      8 #define FWL_WIDGETIMP_H_
      9 
     10 #include "xfa/include/fwl/core/fwl_widget.h"
     11 #include "xfa/src/fwl/src/core/include/fwl_targetimp.h"
     12 
     13 class CFWL_NoteTarget;
     14 class CFWL_NoteThreadImp;
     15 class CFWL_WidgetImpProperties;
     16 class CFWL_WidgetMgr;
     17 class IFWL_DataProvider;
     18 class IFWL_ThemeProvider;
     19 class IFWL_Widget;
     20 class IFWL_WidgetDelegate;
     21 
     22 class CFWL_WidgetImp : public CFWL_TargetImp {
     23  public:
     24   virtual FWL_ERR Initialize();
     25   virtual FWL_ERR Finalize();
     26 
     27   virtual FWL_ERR GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE);
     28   virtual FWL_ERR GetGlobalRect(CFX_RectF& rect);
     29   virtual FWL_ERR SetWidgetRect(const CFX_RectF& rect);
     30   virtual FWL_ERR GetClientRect(CFX_RectF& rect);
     31   virtual IFWL_Widget* GetParent();
     32   virtual FWL_ERR SetParent(IFWL_Widget* pParent);
     33   virtual IFWL_Widget* GetOwner();
     34   virtual FWL_ERR SetOwner(IFWL_Widget* pOwner);
     35   virtual IFWL_Widget* GetOuter();
     36   virtual FX_DWORD GetStyles();
     37   virtual FWL_ERR ModifyStyles(FX_DWORD dwStylesAdded,
     38                                FX_DWORD dwStylesRemoved);
     39   virtual FX_DWORD GetStylesEx();
     40   virtual FWL_ERR ModifyStylesEx(FX_DWORD dwStylesExAdded,
     41                                  FX_DWORD dwStylesExRemoved);
     42   virtual FX_DWORD GetStates();
     43   virtual FWL_ERR SetStates(FX_DWORD dwStates, FX_BOOL bSet = TRUE);
     44   virtual FWL_ERR SetPrivateData(void* module_id,
     45                                  void* pData,
     46                                  PD_CALLBACK_FREEDATA callback);
     47   virtual void* GetPrivateData(void* module_id);
     48   virtual FWL_ERR Update();
     49   virtual FWL_ERR LockUpdate();
     50   virtual FWL_ERR UnlockUpdate();
     51   virtual FX_DWORD HitTest(FX_FLOAT fx, FX_FLOAT fy);
     52   virtual FWL_ERR TransformTo(IFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy);
     53   virtual FWL_ERR TransformTo(IFWL_Widget* pWidget, CFX_RectF& rt);
     54   virtual FWL_ERR GetMatrix(CFX_Matrix& matrix, FX_BOOL bGlobal = FALSE);
     55   virtual FWL_ERR SetMatrix(const CFX_Matrix& matrix);
     56   virtual FWL_ERR DrawWidget(CFX_Graphics* pGraphics,
     57                              const CFX_Matrix* pMatrix = NULL);
     58   virtual IFWL_ThemeProvider* GetThemeProvider();
     59   virtual FWL_ERR SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
     60   virtual FWL_ERR SetDataProvider(IFWL_DataProvider* pDataProvider);
     61   virtual IFWL_WidgetDelegate* SetDelegate(IFWL_WidgetDelegate* pDelegate);
     62   virtual IFWL_NoteThread* GetOwnerThread() const;
     63   FWL_ERR SetOwnerThread(CFWL_NoteThreadImp* pOwnerThread);
     64   IFWL_Widget* GetInterface() const;
     65   void SetInterface(IFWL_Widget* pInterface);
     66   CFX_SizeF GetOffsetFromParent(IFWL_Widget* pParent);
     67 
     68  protected:
     69   CFWL_WidgetImp(const CFWL_WidgetImpProperties& properties,
     70                  IFWL_Widget* pOuter);
     71   virtual ~CFWL_WidgetImp();
     72   FX_BOOL IsEnabled() const;
     73   FX_BOOL IsVisible() const;
     74   FX_BOOL IsActive() const;
     75   FX_BOOL IsOverLapper() const;
     76   FX_BOOL IsPopup() const;
     77   FX_BOOL IsChild() const;
     78   FX_BOOL IsLocked() const;
     79   FX_BOOL IsOffscreen() const;
     80   FX_BOOL HasBorder() const;
     81   FX_BOOL HasEdge() const;
     82   void GetEdgeRect(CFX_RectF& rtEdge);
     83   FX_FLOAT GetBorderSize(FX_BOOL bCX = TRUE);
     84   FX_FLOAT GetEdgeWidth();
     85   void GetRelativeRect(CFX_RectF& rect);
     86   void* GetThemeCapacity(FX_DWORD dwCapacity);
     87   IFWL_ThemeProvider* GetAvailableTheme();
     88   CFWL_WidgetImp* GetRootOuter();
     89   CFX_SizeF CalcTextSize(const CFX_WideString& wsText,
     90                          IFWL_ThemeProvider* pTheme,
     91                          FX_BOOL bMultiLine = FALSE,
     92                          int32_t iLineWidth = -1);
     93   void CalcTextRect(const CFX_WideString& wsText,
     94                     IFWL_ThemeProvider* pTheme,
     95                     FX_DWORD dwTTOStyles,
     96                     int32_t iTTOAlign,
     97                     CFX_RectF& rect);
     98   void SetFocus(FX_BOOL bFocus);
     99   void SetGrab(FX_BOOL bSet);
    100   FX_BOOL GetPopupPos(FX_FLOAT fMinHeight,
    101                       FX_FLOAT fMaxHeight,
    102                       const CFX_RectF& rtAnchor,
    103                       CFX_RectF& rtPopup);
    104   FX_BOOL GetPopupPosMenu(FX_FLOAT fMinHeight,
    105                           FX_FLOAT fMaxHeight,
    106                           const CFX_RectF& rtAnchor,
    107                           CFX_RectF& rtPopup);
    108   FX_BOOL GetPopupPosComboBox(FX_FLOAT fMinHeight,
    109                               FX_FLOAT fMaxHeight,
    110                               const CFX_RectF& rtAnchor,
    111                               CFX_RectF& rtPopup);
    112   FX_BOOL GetPopupPosGeneral(FX_FLOAT fMinHeight,
    113                              FX_FLOAT fMaxHeight,
    114                              const CFX_RectF& rtAnchor,
    115                              CFX_RectF& rtPopup);
    116   FX_BOOL GetScreenSize(FX_FLOAT& fx, FX_FLOAT& fy);
    117   void RegisterEventTarget(IFWL_Widget* pEventSource = NULL,
    118                            FX_DWORD dwFilter = FWL_EVENT_ALL_MASK);
    119   void UnregisterEventTarget();
    120   void DispatchKeyEvent(CFWL_MsgKey* pNote);
    121   void DispatchEvent(CFWL_Event* pEvent);
    122   void Repaint(const CFX_RectF* pRect = NULL);
    123   void DrawBackground(CFX_Graphics* pGraphics,
    124                       int32_t iPartBk,
    125                       IFWL_ThemeProvider* pTheme,
    126                       const CFX_Matrix* pMatrix = NULL);
    127   void DrawBorder(CFX_Graphics* pGraphics,
    128                   int32_t iPartBorder,
    129                   IFWL_ThemeProvider* pTheme,
    130                   const CFX_Matrix* pMatrix = NULL);
    131   void DrawEdge(CFX_Graphics* pGraphics,
    132                 int32_t iPartEdge,
    133                 IFWL_ThemeProvider* pTheme,
    134                 const CFX_Matrix* pMatrix = NULL);
    135   void NotifyDriver();
    136 
    137   FX_BOOL IsParent(IFWL_Widget* pParent);
    138   CFWL_WidgetMgr* m_pWidgetMgr;
    139   CFWL_NoteThreadImp* m_pOwnerThread;
    140   CFWL_WidgetImpProperties* m_pProperties;
    141   CFX_PrivateData* m_pPrivateData;
    142   IFWL_WidgetDelegate* m_pDelegate;
    143   IFWL_WidgetDelegate* m_pCurDelegate;
    144   IFWL_Widget* m_pOuter;
    145   IFWL_Widget* m_pInterface;
    146   int32_t m_iLock;
    147   friend class CFWL_WidgetImpDelegate;
    148   friend void FWL_SetWidgetRect(IFWL_Widget* widget, const CFX_RectF& rect);
    149   friend void FWL_SetWidgetStates(IFWL_Widget* widget, FX_DWORD dwStates);
    150   friend void FWL_SetWidgetStyles(IFWL_Widget* widget, FX_DWORD dwStyles);
    151 };
    152 
    153 class CFWL_WidgetImpDelegate : public IFWL_WidgetDelegate {
    154  public:
    155   CFWL_WidgetImpDelegate();
    156   ~CFWL_WidgetImpDelegate() override {}
    157   int32_t OnProcessMessage(CFWL_Message* pMessage) override;
    158   FWL_ERR OnProcessEvent(CFWL_Event* pEvent) override;
    159   FWL_ERR OnDrawWidget(CFX_Graphics* pGraphics,
    160                        const CFX_Matrix* pMatrix = NULL) override;
    161 };
    162 
    163 #endif  // FWL_WIDGETIMP_H_
    164