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_LIGHT_H
8 #define _FWL_WIDGET_LIGHT_H
9 
10 #include "xfa/include/fwl/core/fwl_widget.h"
11 
12 class CFWL_Event;
13 class CFWL_Message;
14 class CFWL_Widget;
15 class CFWL_WidgetDelegate;
16 class CFWL_WidgetMgr;
17 
18 class CFWL_WidgetProperties {
19  public:
CFWL_WidgetProperties()20   CFWL_WidgetProperties() {
21     m_ctmOnParent.SetIdentity();
22     m_rtWidget.Set(0, 0, 0, 0);
23     m_dwStyles = FWL_WGTSTYLE_Child;
24     m_dwStyleExes = 0;
25     m_dwStates = 0;
26     m_pParent = NULL;
27     m_pOwner = NULL;
28   }
29   CFWL_WidgetImpProperties MakeWidgetImpProperties(
30       IFWL_DataProvider* pDataProvider) const;
31 
32   CFX_WideString m_wsWindowclass;
33   CFX_Matrix m_ctmOnParent;
34   CFX_RectF m_rtWidget;
35   FX_DWORD m_dwStyles;
36   FX_DWORD m_dwStyleExes;
37   FX_DWORD m_dwStates;
38   CFWL_Widget* m_pParent;
39   CFWL_Widget* m_pOwner;
40 };
41 
42 class CFWL_Widget {
43  public:
44   virtual ~CFWL_Widget();
45   IFWL_Widget* GetWidget();
46   FWL_ERR GetClassName(CFX_WideString& wsClass) const;
47   FX_DWORD GetClassID() const;
48   virtual FX_BOOL IsInstance(const CFX_WideStringC& wsClass) const;
49 
50  protected:
51   FWL_ERR Initialize(const CFWL_WidgetProperties* pProperties = NULL);
52 
53  public:
54   FWL_ERR GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE);
55   FWL_ERR GetGlobalRect(CFX_RectF& rect);
56   FWL_ERR SetWidgetRect(const CFX_RectF& rect);
57   FWL_ERR GetClientRect(CFX_RectF& rtClient);
58   CFWL_Widget* GetParent();
59   FWL_ERR SetParent(CFWL_Widget* pParent);
60   CFWL_Widget* GetOwner();
61   FWL_ERR SetOwner(CFWL_Widget* pOwner);
62   FX_DWORD GetStyles();
63   FWL_ERR ModifyStyles(FX_DWORD dwStylesAdded, FX_DWORD dwStylesRemoved);
64   FX_DWORD GetStylesEx();
65   FWL_ERR ModifyStylesEx(FX_DWORD dwStylesExAdded, FX_DWORD dwStylesExRemoved);
66   FX_DWORD GetStates();
67   FWL_ERR SetStates(FX_DWORD dwStates, FX_BOOL bSet = TRUE);
68   FWL_ERR SetPrivateData(void* module_id,
69                          void* pData,
70                          PD_CALLBACK_FREEDATA callback);
71   void* GetPrivateData(void* module_id);
72   FWL_ERR Update();
73   FWL_ERR LockUpdate();
74   FWL_ERR UnlockUpdate();
75   FX_DWORD HitTest(FX_FLOAT fx, FX_FLOAT fy);
76   FWL_ERR TransformTo(CFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy);
77   FWL_ERR TransformTo(CFWL_Widget* pWidget, CFX_RectF& rt);
78   FWL_ERR GetMatrix(CFX_Matrix& matrix, FX_BOOL bGlobal = FALSE);
79   FWL_ERR SetMatrix(const CFX_Matrix& matrix);
80   FWL_ERR DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix = NULL);
81   IFWL_WidgetDelegate* SetDelegate(IFWL_WidgetDelegate* pDelegate);
82   FWL_ERR Repaint(const CFX_RectF* pRect = NULL);
83   FWL_ERR SetFocus(FX_BOOL bFocus);
84   FWL_ERR SetGrab(FX_BOOL bSet);
85   CFWL_Widget();
86 
87   void RegisterEventTarget(CFWL_Widget* pEventSource = NULL,
88                            FX_DWORD dwFilter = FWL_EVENT_ALL_MASK);
89   void DispatchEvent(CFWL_Event* pEvent);
90   CFX_SizeF CalcTextSize(const CFX_WideString& wsText,
91                          FX_BOOL bMultiLine = FALSE,
92                          int32_t iLineWidth = -1);
93   IFWL_Widget* m_pIface;
94   IFWL_WidgetDelegate* m_pDelegate;
95   CFWL_WidgetMgr* m_pWidgetMgr;
96   CFWL_WidgetProperties* m_pProperties;
97 };
98 class CFWL_WidgetDelegate {
99  public:
100   CFWL_WidgetDelegate();
101   virtual ~CFWL_WidgetDelegate();
102   virtual int32_t OnProcessMessage(CFWL_Message* pMessage);
103   virtual FWL_ERR OnProcessEvent(CFWL_Event* pEvent);
104   virtual FWL_ERR OnDrawWidget(CFX_Graphics* pGraphics,
105                                const CFX_Matrix* pMatrix = NULL);
106 };
107 #endif
108