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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_WIDGET_H
      8 #define _FWL_WIDGET_H
      9 class IFWL_Target;
     10 class IFWL_ThemeProvider;
     11 class CFWL_WidgetImpProperties;
     12 class IFWL_DataProvider;
     13 class IFWL_Widget;
     14 class IFWL_WidgetDelegate;
     15 class IFWL_Custom;
     16 class IFWL_Proxy;
     17 class IFWL_Form;
     18 
     19 class IFWL_DataProvider {
     20  public:
     21   virtual ~IFWL_DataProvider() {}
     22   virtual FWL_ERR GetCaption(IFWL_Widget* pWidget,
     23                              CFX_WideString& wsCaption) = 0;
     24 };
     25 class IFWL_Widget : public IFWL_Target {
     26  public:
     27   FWL_ERR GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE);
     28   FWL_ERR GetGlobalRect(CFX_RectF& rect);
     29   FWL_ERR SetWidgetRect(const CFX_RectF& rect);
     30   FWL_ERR GetClientRect(CFX_RectF& rect);
     31   IFWL_Widget* GetParent();
     32   FWL_ERR SetParent(IFWL_Widget* pParent);
     33   IFWL_Widget* GetOwner();
     34   FWL_ERR SetOwner(IFWL_Widget* pOwner);
     35   IFWL_Widget* GetOuter();
     36   FX_DWORD GetStyles();
     37   FWL_ERR ModifyStyles(FX_DWORD dwStylesAdded, FX_DWORD dwStylesRemoved);
     38   FX_DWORD GetStylesEx();
     39   FWL_ERR ModifyStylesEx(FX_DWORD dwStylesExAdded, FX_DWORD dwStylesExRemoved);
     40   FX_DWORD GetStates();
     41   FWL_ERR SetStates(FX_DWORD dwStates, FX_BOOL bSet = TRUE);
     42   FWL_ERR SetPrivateData(void* module_id,
     43                          void* pData,
     44                          PD_CALLBACK_FREEDATA callback);
     45   void* GetPrivateData(void* module_id);
     46   FWL_ERR Update();
     47   FWL_ERR LockUpdate();
     48   FWL_ERR UnlockUpdate();
     49   FX_DWORD HitTest(FX_FLOAT fx, FX_FLOAT fy);
     50   FWL_ERR TransformTo(IFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy);
     51   FWL_ERR TransformTo(IFWL_Widget* pWidget, CFX_RectF& rt);
     52   FWL_ERR GetMatrix(CFX_Matrix& matrix, FX_BOOL bGlobal = FALSE);
     53   FWL_ERR SetMatrix(const CFX_Matrix& matrix);
     54   FWL_ERR DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix = NULL);
     55   IFWL_ThemeProvider* GetThemeProvider();
     56   FWL_ERR SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
     57   FWL_ERR SetDataProvider(IFWL_DataProvider* pDataProvider);
     58   IFWL_WidgetDelegate* SetDelegate(IFWL_WidgetDelegate* pDelegate);
     59   IFWL_NoteThread* GetOwnerThread() const;
     60   CFX_SizeF GetOffsetFromParent(IFWL_Widget* pParent);
     61 };
     62 class IFWL_WidgetDelegate {
     63  public:
     64   virtual ~IFWL_WidgetDelegate() {}
     65   virtual int32_t OnProcessMessage(CFWL_Message* pMessage) = 0;
     66   virtual FWL_ERR OnProcessEvent(CFWL_Event* pEvent) = 0;
     67   virtual FWL_ERR OnDrawWidget(CFX_Graphics* pGraphics,
     68                                const CFX_Matrix* pMatrix = NULL) = 0;
     69 };
     70 class CFWL_WidgetImpProperties {
     71  public:
     72   CFWL_WidgetImpProperties() {
     73     m_ctmOnParent.SetIdentity();
     74     m_rtWidget.Set(0, 0, 0, 0);
     75     m_dwStyles = FWL_WGTSTYLE_Child;
     76     m_dwStyleExes = 0;
     77     m_dwStates = 0;
     78     m_pThemeProvider = NULL;
     79     m_pDataProvider = NULL;
     80     m_pParent = NULL;
     81     m_pOwner = NULL;
     82   }
     83   CFX_Matrix m_ctmOnParent;
     84   CFX_RectF m_rtWidget;
     85   FX_DWORD m_dwStyles;
     86   FX_DWORD m_dwStyleExes;
     87   FX_DWORD m_dwStates;
     88   IFWL_ThemeProvider* m_pThemeProvider;
     89   IFWL_DataProvider* m_pDataProvider;
     90   IFWL_Widget* m_pParent;
     91   IFWL_Widget* m_pOwner;
     92 };
     93 class IFWL_Custom : public IFWL_Widget {
     94  public:
     95   static IFWL_Custom* Create(const CFWL_WidgetImpProperties& properties,
     96                              IFWL_Widget* pOuter);
     97 
     98   FWL_ERR SetProxy(IFWL_Proxy* pProxy);
     99 
    100  protected:
    101   IFWL_Custom();
    102 };
    103 class IFWL_Proxy {
    104  public:
    105   virtual ~IFWL_Proxy() {}
    106   virtual FWL_ERR GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE) = 0;
    107   virtual FWL_ERR Update() = 0;
    108 };
    109 #define FWL_ACCEL_Control (1L << 0)
    110 #define FWL_ACCEL_Alt (1L << 1)
    111 #define FWL_ACCEL_Shift (1L << 2)
    112 #define FWL_ACCEL_VirtKey (1L << 3)
    113 typedef struct _FWL_ACCEL {
    114   FX_DWORD dwKey;
    115   FX_DWORD dwCmd;
    116 } FWL_ACCEL;
    117 typedef CFX_MapPtrTemplate<FX_DWORD, FX_DWORD> CFX_MapAccelerators;
    118 FWL_ERR FWL_Accelerator_SetApp(CFX_MapAccelerators* pMapAccel);
    119 FWL_ERR FWL_Accelerator_SetThread(CFX_MapAccelerators* pMapAccel);
    120 FWL_ERR FWL_Accelerator_SetForm(IFWL_Form* pFrom,
    121                                 CFX_MapAccelerators* pMapAccel);
    122 FWL_ERR FWL_EnabelWidget(IFWL_Widget* widget, FX_BOOL bEnable);
    123 #endif
    124