// 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_CFWL_SCROLLBAR_H_ #define XFA_FWL_CFWL_SCROLLBAR_H_ #include <memory> #include "core/fxcrt/fx_system.h" #include "xfa/fwl/cfwl_eventscroll.h" #include "xfa/fwl/cfwl_timer.h" #include "xfa/fwl/cfwl_widget.h" #include "xfa/fwl/cfwl_widgetproperties.h" class CFWL_Widget; #define FWL_STYLEEXT_SCB_Horz (0L << 0) #define FWL_STYLEEXT_SCB_Vert (1L << 0) class CFWL_ScrollBar : public CFWL_Widget { public: CFWL_ScrollBar(const CFWL_App* app, std::unique_ptr<CFWL_WidgetProperties> properties, CFWL_Widget* pOuter); ~CFWL_ScrollBar() override; // CFWL_Widget FWL_Type GetClassID() const override; void Update() override; void DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) 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(CFWL_ScrollBar* pToolTip); ~Timer() override {} void Run(CFWL_TimerInfo* pTimerInfo) override; }; friend class CFWL_ScrollBar::Timer; bool IsVertical() const { return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_SCB_Vert); } void DrawTrack(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme, bool bLower, const CFX_Matrix* pMatrix); void DrawArrowBtn(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme, bool bMinBtn, const CFX_Matrix* pMatrix); void DrawThumb(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme, const CFX_Matrix* pMatrix); 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); bool SendEvent(); bool OnScroll(CFWL_EventScroll::Code 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(CFWL_EventScroll::Code dwCode, FX_FLOAT fPos); 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; CFWL_ScrollBar::Timer m_Timer; }; #endif // XFA_FWL_CFWL_SCROLLBAR_H_