| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef XFA_FWL_CORE_IFWL_SCROLLBAR_H_ |
| #define XFA_FWL_CORE_IFWL_SCROLLBAR_H_ |
| |
| #include <memory> |
| |
| #include "core/fxcrt/fx_system.h" |
| #include "xfa/fwl/core/cfwl_evtscroll.h" |
| #include "xfa/fwl/core/cfwl_timer.h" |
| #include "xfa/fwl/core/cfwl_widgetproperties.h" |
| #include "xfa/fwl/core/ifwl_widget.h" |
| |
| class IFWL_Widget; |
| |
| #define FWL_STYLEEXT_SCB_Horz (0L << 0) |
| #define FWL_STYLEEXT_SCB_Vert (1L << 0) |
| |
| class IFWL_ScrollBar : public IFWL_Widget { |
| public: |
| IFWL_ScrollBar(const CFWL_App* app, |
| std::unique_ptr<CFWL_WidgetProperties> properties, |
| IFWL_Widget* pOuter); |
| ~IFWL_ScrollBar() override; |
| |
| // IFWL_Widget |
| FWL_Type GetClassID() const override; |
| void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override; |
| void Update() override; |
| void DrawWidget(CFX_Graphics* pGraphics, |
| const CFX_Matrix* pMatrix = nullptr) override; |
| void OnProcessMessage(CFWL_Message* pMessage) override; |
| void OnDrawWidget(CFX_Graphics* pGraphics, |
| const CFX_Matrix* pMatrix) override; |
| |
| void GetRange(FX_FLOAT* fMin, FX_FLOAT* fMax) const { |
| ASSERT(fMin); |
| ASSERT(fMax); |
| *fMin = m_fRangeMin; |
| *fMax = m_fRangeMax; |
| } |
| void SetRange(FX_FLOAT fMin, FX_FLOAT fMax) { |
| m_fRangeMin = fMin; |
| m_fRangeMax = fMax; |
| } |
| FX_FLOAT GetPageSize() const { return m_fPageSize; } |
| void SetPageSize(FX_FLOAT fPageSize) { m_fPageSize = fPageSize; } |
| FX_FLOAT GetStepSize() const { return m_fStepSize; } |
| void SetStepSize(FX_FLOAT fStepSize) { m_fStepSize = fStepSize; } |
| FX_FLOAT GetPos() const { return m_fPos; } |
| void SetPos(FX_FLOAT fPos) { m_fPos = fPos; } |
| void SetTrackPos(FX_FLOAT fTrackPos); |
| |
| private: |
| class Timer : public CFWL_Timer { |
| public: |
| explicit Timer(IFWL_ScrollBar* pToolTip); |
| ~Timer() override {} |
| |
| void Run(CFWL_TimerInfo* pTimerInfo) override; |
| }; |
| friend class IFWL_ScrollBar::Timer; |
| |
| bool IsVertical() const { |
| return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_SCB_Vert); |
| } |
| void DrawTrack(CFX_Graphics* pGraphics, |
| IFWL_ThemeProvider* pTheme, |
| bool bLower = true, |
| const CFX_Matrix* pMatrix = nullptr); |
| void DrawArrowBtn(CFX_Graphics* pGraphics, |
| IFWL_ThemeProvider* pTheme, |
| bool bMinBtn = true, |
| const CFX_Matrix* pMatrix = nullptr); |
| void DrawThumb(CFX_Graphics* pGraphics, |
| IFWL_ThemeProvider* pTheme, |
| const CFX_Matrix* pMatrix = nullptr); |
| void Layout(); |
| void CalcButtonLen(); |
| void CalcMinButtonRect(CFX_RectF& rect); |
| void CalcMaxButtonRect(CFX_RectF& rect); |
| void CalcThumbButtonRect(CFX_RectF& rect); |
| void CalcMinTrackRect(CFX_RectF& rect); |
| void CalcMaxTrackRect(CFX_RectF& rect); |
| FX_FLOAT GetTrackPointPos(FX_FLOAT fx, FX_FLOAT fy); |
| void GetTrackRect(CFX_RectF& rect, bool bLower = true); |
| bool SendEvent(); |
| bool OnScroll(FWL_SCBCODE dwCode, FX_FLOAT fPos); |
| void OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); |
| void OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); |
| void OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); |
| void OnMouseLeave(); |
| void OnMouseWheel(FX_FLOAT fx, |
| FX_FLOAT fy, |
| uint32_t dwFlags, |
| FX_FLOAT fDeltaX, |
| FX_FLOAT fDeltaY); |
| bool DoScroll(FWL_SCBCODE dwCode, FX_FLOAT fPos = 0.0f); |
| void DoMouseDown(int32_t iItem, |
| const CFX_RectF& rtItem, |
| int32_t& iState, |
| FX_FLOAT fx, |
| FX_FLOAT fy); |
| void DoMouseUp(int32_t iItem, |
| const CFX_RectF& rtItem, |
| int32_t& iState, |
| FX_FLOAT fx, |
| FX_FLOAT fy); |
| void DoMouseMove(int32_t iItem, |
| const CFX_RectF& rtItem, |
| int32_t& iState, |
| FX_FLOAT fx, |
| FX_FLOAT fy); |
| void DoMouseLeave(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState); |
| void DoMouseHover(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState); |
| |
| CFWL_TimerInfo* m_pTimerInfo; |
| FX_FLOAT m_fRangeMin; |
| FX_FLOAT m_fRangeMax; |
| FX_FLOAT m_fPageSize; |
| FX_FLOAT m_fStepSize; |
| FX_FLOAT m_fPos; |
| FX_FLOAT m_fTrackPos; |
| int32_t m_iMinButtonState; |
| int32_t m_iMaxButtonState; |
| int32_t m_iThumbButtonState; |
| int32_t m_iMinTrackState; |
| int32_t m_iMaxTrackState; |
| FX_FLOAT m_fLastTrackPos; |
| FX_FLOAT m_cpTrackPointX; |
| FX_FLOAT m_cpTrackPointY; |
| int32_t m_iMouseWheel; |
| bool m_bMouseDown; |
| FX_FLOAT m_fButtonLen; |
| bool m_bMinSize; |
| CFX_RectF m_rtClient; |
| CFX_RectF m_rtThumb; |
| CFX_RectF m_rtMinBtn; |
| CFX_RectF m_rtMaxBtn; |
| CFX_RectF m_rtMinTrack; |
| CFX_RectF m_rtMaxTrack; |
| FX_FLOAT m_fMinThumb; |
| IFWL_ScrollBar::Timer m_Timer; |
| }; |
| |
| #endif // XFA_FWL_CORE_IFWL_SCROLLBAR_H_ |