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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 XFA_FWL_CORE_IFWL_WIDGET_H_ | |
8 #define XFA_FWL_CORE_IFWL_WIDGET_H_ | |
9 | |
10 #include <memory> | |
11 | |
12 #include "core/fxcrt/fx_coordinates.h" | |
13 #include "core/fxcrt/fx_system.h" | |
14 #include "xfa/fwl/core/cfwl_event.h" | |
15 #include "xfa/fwl/core/cfwl_themepart.h" | |
16 #include "xfa/fwl/core/cfwl_widgetmgr.h" | |
17 #include "xfa/fwl/core/fwl_widgethit.h" | |
18 #include "xfa/fwl/core/ifwl_widgetdelegate.h" | |
19 #include "xfa/fwl/theme/cfwl_widgettp.h" | |
20 | |
21 // FWL contains two parallel inheritance hierarchies, which reference each | |
22 // other via pointers as follows: | |
23 // | |
24 // m_pAssociate | |
25 // <---------- | |
26 // CFWL_Widget ----------> IFWL_Widget | |
27 // | m_pIface | | |
28 // A A | |
29 // | | | |
30 // CFWL_... IFWL_... | |
31 // | |
32 // TODO(tsepez): Collapse these into a single hierarchy. | |
33 // | |
34 | |
35 enum class FWL_Type { | |
36 Unknown = 0, | |
37 | |
38 Barcode, | |
39 Caret, | |
40 CheckBox, | |
41 ComboBox, | |
42 DateTimePicker, | |
43 Edit, | |
44 Form, | |
45 FormProxy, | |
46 ListBox, | |
47 MonthCalendar, | |
48 PictureBox, | |
49 PushButton, | |
50 ScrollBar, | |
51 SpinButton, | |
52 ToolTip | |
53 }; | |
54 | |
55 class CFWL_AppImp; | |
56 class CFWL_MsgKey; | |
57 class CFWL_Widget; | |
58 class CFWL_WidgetProperties; | |
59 class CFWL_WidgetMgr; | |
60 class CFWL_App; | |
61 class IFWL_ThemeProvider; | |
62 class IFWL_Widget; | |
63 enum class FWL_Type; | |
64 | |
65 class IFWL_Widget : public IFWL_WidgetDelegate { | |
66 public: | |
67 ~IFWL_Widget() override; | |
68 | |
69 virtual FWL_Type GetClassID() const = 0; | |
70 virtual bool IsInstance(const CFX_WideStringC& wsClass) const; | |
71 virtual void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false); | |
72 virtual void GetClientRect(CFX_RectF& rect); | |
73 virtual void ModifyStylesEx(uint32_t dwStylesExAdded, | |
74 uint32_t dwStylesExRemoved); | |
75 virtual void SetStates(uint32_t dwStates, bool bSet = true); | |
76 virtual void Update() = 0; | |
77 virtual FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy); | |
78 virtual void DrawWidget(CFX_Graphics* pGraphics, | |
79 const CFX_Matrix* pMatrix = nullptr) = 0; | |
80 virtual void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider); | |
81 | |
82 // IFWL_WidgetDelegate. | |
83 void OnProcessMessage(CFWL_Message* pMessage) override; | |
84 void OnProcessEvent(CFWL_Event* pEvent) override; | |
85 void OnDrawWidget(CFX_Graphics* pGraphics, | |
86 const CFX_Matrix* pMatrix = nullptr) override; | |
87 | |
88 void SetWidgetRect(const CFX_RectF& rect); | |
89 | |
90 void SetParent(IFWL_Widget* pParent); | |
91 | |
92 IFWL_Widget* GetOwner() { return m_pWidgetMgr->GetOwnerWidget(this); } | |
93 IFWL_Widget* GetOuter() const { return m_pOuter; } | |
94 | |
95 uint32_t GetStyles() const; | |
96 void ModifyStyles(uint32_t dwStylesAdded, uint32_t dwStylesRemoved); | |
97 uint32_t GetStylesEx() const; | |
98 uint32_t GetStates() const; | |
99 | |
100 void LockUpdate() { m_iLock++; } | |
101 void UnlockUpdate() { | |
102 if (IsLocked()) | |
103 m_iLock--; | |
104 } | |
105 | |
106 void TransformTo(IFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy); | |
107 void GetMatrix(CFX_Matrix& matrix, bool bGlobal = false); | |
108 IFWL_ThemeProvider* GetThemeProvider() const; | |
109 | |
110 void SetDelegate(IFWL_WidgetDelegate* delegate) { m_pDelegate = delegate; } | |
111 IFWL_WidgetDelegate* GetDelegate() { | |
112 return m_pDelegate ? m_pDelegate : this; | |
113 } | |
114 const IFWL_WidgetDelegate* GetDelegate() const { | |
115 return m_pDelegate ? m_pDelegate : this; | |
116 } | |
117 | |
118 const CFWL_App* GetOwnerApp() const { return m_pOwnerApp; } | |
119 uint32_t GetEventKey() const { return m_nEventKey; } | |
120 void SetEventKey(uint32_t key) { m_nEventKey = key; } | |
121 | |
122 void* GetLayoutItem() const { return m_pLayoutItem; } | |
123 void SetLayoutItem(void* pItem) { m_pLayoutItem = pItem; } | |
124 | |
125 void SetAssociateWidget(CFWL_Widget* pAssociate) { | |
126 m_pAssociate = pAssociate; | |
127 } | |
128 | |
129 void SetFocus(bool bFocus); | |
130 void Repaint(const CFX_RectF* pRect = nullptr); | |
131 | |
132 protected: | |
133 IFWL_Widget(const CFWL_App* app, | |
134 std::unique_ptr<CFWL_WidgetProperties> properties, | |
135 IFWL_Widget* pOuter); | |
136 | |
137 bool IsEnabled() const; | |
138 bool IsActive() const; | |
139 bool IsLocked() const { return m_iLock > 0; } | |
140 bool HasBorder() const; | |
141 bool HasEdge() const; | |
142 void GetEdgeRect(CFX_RectF& rtEdge); | |
143 FX_FLOAT GetBorderSize(bool bCX = true); | |
144 FX_FLOAT GetEdgeWidth(); | |
145 void GetRelativeRect(CFX_RectF& rect); | |
146 void* GetThemeCapacity(CFWL_WidgetCapacity dwCapacity); | |
147 IFWL_ThemeProvider* GetAvailableTheme(); | |
148 CFX_SizeF CalcTextSize(const CFX_WideString& wsText, | |
149 IFWL_ThemeProvider* pTheme, | |
150 bool bMultiLine = false, | |
151 int32_t iLineWidth = -1); | |
152 void CalcTextRect(const CFX_WideString& wsText, | |
153 IFWL_ThemeProvider* pTheme, | |
154 uint32_t dwTTOStyles, | |
155 int32_t iTTOAlign, | |
156 CFX_RectF& rect); | |
157 void SetGrab(bool bSet); | |
158 void GetPopupPos(FX_FLOAT fMinHeight, | |
159 FX_FLOAT fMaxHeight, | |
160 const CFX_RectF& rtAnchor, | |
161 CFX_RectF& rtPopup); | |
162 void RegisterEventTarget(IFWL_Widget* pEventSource); | |
163 void UnregisterEventTarget(); | |
164 void DispatchKeyEvent(CFWL_MsgKey* pNote); | |
165 void DispatchEvent(CFWL_Event* pEvent); | |
166 void DrawBorder(CFX_Graphics* pGraphics, | |
167 CFWL_Part iPartBorder, | |
168 IFWL_ThemeProvider* pTheme, | |
169 const CFX_Matrix* pMatrix = nullptr); | |
170 void DrawEdge(CFX_Graphics* pGraphics, | |
171 CFWL_Part iPartEdge, | |
172 IFWL_ThemeProvider* pTheme, | |
173 const CFX_Matrix* pMatrix = nullptr); | |
174 | |
175 const CFWL_App* const m_pOwnerApp; | |
176 CFWL_WidgetMgr* const m_pWidgetMgr; | |
177 std::unique_ptr<CFWL_WidgetProperties> m_pProperties; | |
178 IFWL_Widget* m_pOuter; | |
179 int32_t m_iLock; | |
180 | |
181 private: | |
182 IFWL_Widget* GetParent() { return m_pWidgetMgr->GetParentWidget(this); } | |
183 CFX_SizeF GetOffsetFromParent(IFWL_Widget* pParent); | |
184 | |
185 bool IsVisible() const; | |
186 bool IsOverLapper() const; | |
187 bool IsPopup() const; | |
188 bool IsChild() const; | |
189 bool IsOffscreen() const; | |
190 IFWL_Widget* GetRootOuter(); | |
191 bool GetPopupPosMenu(FX_FLOAT fMinHeight, | |
192 FX_FLOAT fMaxHeight, | |
193 const CFX_RectF& rtAnchor, | |
194 CFX_RectF& rtPopup); | |
195 bool GetPopupPosComboBox(FX_FLOAT fMinHeight, | |
196 FX_FLOAT fMaxHeight, | |
197 const CFX_RectF& rtAnchor, | |
198 CFX_RectF& rtPopup); | |
199 bool GetPopupPosGeneral(FX_FLOAT fMinHeight, | |
200 FX_FLOAT fMaxHeight, | |
201 const CFX_RectF& rtAnchor, | |
202 CFX_RectF& rtPopup); | |
203 bool GetScreenSize(FX_FLOAT& fx, FX_FLOAT& fy); | |
204 void DrawBackground(CFX_Graphics* pGraphics, | |
205 CFWL_Part iPartBk, | |
206 IFWL_ThemeProvider* pTheme, | |
207 const CFX_Matrix* pMatrix = nullptr); | |
208 void NotifyDriver(); | |
209 bool IsParent(IFWL_Widget* pParent); | |
210 | |
211 void* m_pLayoutItem; | |
212 CFWL_Widget* m_pAssociate; | |
213 uint32_t m_nEventKey; | |
214 IFWL_WidgetDelegate* m_pDelegate; // Not owned. | |
215 }; | |
216 | |
217 #endif // XFA_FWL_CORE_IFWL_WIDGET_H_ | |
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