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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_CFWL_SCROLLBAR_H_ | |
8 #define XFA_FWL_CORE_CFWL_SCROLLBAR_H_ | |
9 | |
10 #include <memory> | |
11 | |
12 #include "core/fxcrt/fx_system.h" | |
13 #include "xfa/fwl/core/cfwl_evtscroll.h" | |
14 #include "xfa/fwl/core/cfwl_timer.h" | |
15 #include "xfa/fwl/core/cfwl_widget.h" | |
16 #include "xfa/fwl/core/cfwl_widgetproperties.h" | |
17 | |
18 class CFWL_Widget; | |
19 | |
20 #define FWL_STYLEEXT_SCB_Horz (0L << 0) | |
21 #define FWL_STYLEEXT_SCB_Vert (1L << 0) | |
22 | |
23 class CFWL_ScrollBar : public CFWL_Widget { | |
24 public: | |
25 CFWL_ScrollBar(const CFWL_App* app, | |
26 std::unique_ptr<CFWL_WidgetProperties> properties, | |
27 CFWL_Widget* pOuter); | |
28 ~CFWL_ScrollBar() override; | |
29 | |
30 // CFWL_Widget | |
31 FWL_Type GetClassID() const override; | |
32 void Update() override; | |
33 void DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) override; | |
34 void OnProcessMessage(CFWL_Message* pMessage) override; | |
35 void OnDrawWidget(CFX_Graphics* pGraphics, | |
36 const CFX_Matrix* pMatrix) override; | |
37 | |
38 void GetRange(FX_FLOAT* fMin, FX_FLOAT* fMax) const { | |
39 ASSERT(fMin); | |
40 ASSERT(fMax); | |
41 *fMin = m_fRangeMin; | |
42 *fMax = m_fRangeMax; | |
43 } | |
44 void SetRange(FX_FLOAT fMin, FX_FLOAT fMax) { | |
45 m_fRangeMin = fMin; | |
46 m_fRangeMax = fMax; | |
47 } | |
48 FX_FLOAT GetPageSize() const { return m_fPageSize; } | |
49 void SetPageSize(FX_FLOAT fPageSize) { m_fPageSize = fPageSize; } | |
50 FX_FLOAT GetStepSize() const { return m_fStepSize; } | |
51 void SetStepSize(FX_FLOAT fStepSize) { m_fStepSize = fStepSize; } | |
52 FX_FLOAT GetPos() const { return m_fPos; } | |
53 void SetPos(FX_FLOAT fPos) { m_fPos = fPos; } | |
54 void SetTrackPos(FX_FLOAT fTrackPos); | |
55 | |
56 private: | |
57 class Timer : public CFWL_Timer { | |
58 public: | |
59 explicit Timer(CFWL_ScrollBar* pToolTip); | |
60 ~Timer() override {} | |
61 | |
62 void Run(CFWL_TimerInfo* pTimerInfo) override; | |
63 }; | |
64 friend class CFWL_ScrollBar::Timer; | |
65 | |
66 bool IsVertical() const { | |
67 return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_SCB_Vert); | |
68 } | |
69 void DrawTrack(CFX_Graphics* pGraphics, | |
70 IFWL_ThemeProvider* pTheme, | |
71 bool bLower, | |
72 const CFX_Matrix* pMatrix); | |
73 void DrawArrowBtn(CFX_Graphics* pGraphics, | |
74 IFWL_ThemeProvider* pTheme, | |
75 bool bMinBtn, | |
76 const CFX_Matrix* pMatrix); | |
77 void DrawThumb(CFX_Graphics* pGraphics, | |
78 IFWL_ThemeProvider* pTheme, | |
79 const CFX_Matrix* pMatrix); | |
80 void Layout(); | |
81 void CalcButtonLen(); | |
82 void CalcMinButtonRect(CFX_RectF& rect); | |
83 void CalcMaxButtonRect(CFX_RectF& rect); | |
84 void CalcThumbButtonRect(CFX_RectF& rect); | |
85 void CalcMinTrackRect(CFX_RectF& rect); | |
86 void CalcMaxTrackRect(CFX_RectF& rect); | |
87 FX_FLOAT GetTrackPointPos(FX_FLOAT fx, FX_FLOAT fy); | |
88 | |
89 bool SendEvent(); | |
90 bool OnScroll(CFWL_EvtScroll::Code dwCode, FX_FLOAT fPos); | |
91 void OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); | |
92 void OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); | |
93 void OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); | |
94 void OnMouseLeave(); | |
95 void OnMouseWheel(FX_FLOAT fx, | |
96 FX_FLOAT fy, | |
97 uint32_t dwFlags, | |
98 FX_FLOAT fDeltaX, | |
99 FX_FLOAT fDeltaY); | |
100 bool DoScroll(CFWL_EvtScroll::Code dwCode, FX_FLOAT fPos); | |
101 void DoMouseDown(int32_t iItem, | |
102 const CFX_RectF& rtItem, | |
103 int32_t& iState, | |
104 FX_FLOAT fx, | |
105 FX_FLOAT fy); | |
106 void DoMouseUp(int32_t iItem, | |
107 const CFX_RectF& rtItem, | |
108 int32_t& iState, | |
109 FX_FLOAT fx, | |
110 FX_FLOAT fy); | |
111 void DoMouseMove(int32_t iItem, | |
112 const CFX_RectF& rtItem, | |
113 int32_t& iState, | |
114 FX_FLOAT fx, | |
115 FX_FLOAT fy); | |
116 void DoMouseLeave(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState); | |
117 void DoMouseHover(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState); | |
118 | |
119 CFWL_TimerInfo* m_pTimerInfo; | |
120 FX_FLOAT m_fRangeMin; | |
121 FX_FLOAT m_fRangeMax; | |
122 FX_FLOAT m_fPageSize; | |
123 FX_FLOAT m_fStepSize; | |
124 FX_FLOAT m_fPos; | |
125 FX_FLOAT m_fTrackPos; | |
126 int32_t m_iMinButtonState; | |
127 int32_t m_iMaxButtonState; | |
128 int32_t m_iThumbButtonState; | |
129 int32_t m_iMinTrackState; | |
130 int32_t m_iMaxTrackState; | |
131 FX_FLOAT m_fLastTrackPos; | |
132 FX_FLOAT m_cpTrackPointX; | |
133 FX_FLOAT m_cpTrackPointY; | |
134 int32_t m_iMouseWheel; | |
135 bool m_bMouseDown; | |
136 FX_FLOAT m_fButtonLen; | |
137 bool m_bMinSize; | |
138 CFX_RectF m_rtClient; | |
139 CFX_RectF m_rtThumb; | |
140 CFX_RectF m_rtMinBtn; | |
141 CFX_RectF m_rtMaxBtn; | |
142 CFX_RectF m_rtMinTrack; | |
143 CFX_RectF m_rtMaxTrack; | |
144 FX_FLOAT m_fMinThumb; | |
145 CFWL_ScrollBar::Timer m_Timer; | |
146 }; | |
147 | |
148 #endif // XFA_FWL_CORE_CFWL_SCROLLBAR_H_ | |
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