// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FWL_BASEWIDGET_FWL_SCROLLBARIMP_H_
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#define XFA_FWL_BASEWIDGET_FWL_SCROLLBARIMP_H_
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#include "xfa/fwl/core/fwl_widgetimp.h"
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#include "xfa/fwl/core/ifwl_timer.h"
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#include "xfa/fwl/core/ifwl_widget.h"
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class CFWL_WidgetImpProperties;
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class IFWL_Widget;
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class CFWL_ScrollBarImpDelegate;
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class CFWL_ScrollBarImp : public CFWL_WidgetImp, public IFWL_Timer {
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public:
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CFWL_ScrollBarImp(const CFWL_WidgetImpProperties& properties,
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IFWL_Widget* pOuter);
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~CFWL_ScrollBarImp() override;
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// CFWL_WidgetImp
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FWL_Error GetClassName(CFX_WideString& wsClass) const override;
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FWL_Type GetClassID() const override;
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FWL_Error Initialize() override;
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FWL_Error Finalize() override;
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FWL_Error GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE) override;
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FWL_Error Update() override;
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FWL_Error DrawWidget(CFX_Graphics* pGraphics,
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const CFX_Matrix* pMatrix = nullptr) override;
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// IFWL_Timer
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void Run(IFWL_TimerInfo* pTimerInfo) override;
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FX_BOOL IsVertical();
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FWL_Error GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax);
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FWL_Error SetRange(FX_FLOAT fMin, FX_FLOAT fMax);
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FX_FLOAT GetPageSize();
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FWL_Error SetPageSize(FX_FLOAT fPageSize);
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FX_FLOAT GetStepSize();
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FWL_Error SetStepSize(FX_FLOAT fStepSize);
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FX_FLOAT GetPos();
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FWL_Error SetPos(FX_FLOAT fPos);
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FX_FLOAT GetTrackPos();
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FWL_Error SetTrackPos(FX_FLOAT fTrackPos);
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FX_BOOL DoScroll(uint32_t dwCode, FX_FLOAT fPos = 0.0f);
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FWL_Error SetOuter(IFWL_Widget* pOuter);
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protected:
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friend class CFWL_ScrollBarImpDelegate;
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void DrawTrack(CFX_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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FX_BOOL bLower = TRUE,
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const CFX_Matrix* pMatrix = nullptr);
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void DrawArrowBtn(CFX_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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FX_BOOL bMinBtn = TRUE,
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const CFX_Matrix* pMatrix = nullptr);
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void DrawThumb(CFX_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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const CFX_Matrix* pMatrix = nullptr);
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void Layout();
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void CalcButtonLen();
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void CalcMinButtonRect(CFX_RectF& rect);
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void CalcMaxButtonRect(CFX_RectF& rect);
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void CalcThumbButtonRect(CFX_RectF& rect);
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void CalcMinTrackRect(CFX_RectF& rect);
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void CalcMaxTrackRect(CFX_RectF& rect);
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FX_FLOAT GetTrackPointPos(FX_FLOAT fx, FX_FLOAT fy);
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void GetTrackRect(CFX_RectF& rect, FX_BOOL bLower = TRUE);
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FX_BOOL SendEvent();
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FX_BOOL OnScroll(uint32_t dwCode, FX_FLOAT fPos);
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IFWL_TimerInfo* m_pTimerInfo;
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FX_FLOAT m_fRangeMin;
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FX_FLOAT m_fRangeMax;
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FX_FLOAT m_fPageSize;
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FX_FLOAT m_fStepSize;
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FX_FLOAT m_fPos;
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FX_FLOAT m_fTrackPos;
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int32_t m_iMinButtonState;
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int32_t m_iMaxButtonState;
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int32_t m_iThumbButtonState;
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int32_t m_iMinTrackState;
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int32_t m_iMaxTrackState;
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FX_FLOAT m_fLastTrackPos;
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FX_FLOAT m_cpTrackPointX;
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FX_FLOAT m_cpTrackPointY;
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int32_t m_iMouseWheel;
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FX_BOOL m_bTrackMouseLeave;
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FX_BOOL m_bMouseHover;
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FX_BOOL m_bMouseDown;
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FX_BOOL m_bRepaintThumb;
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FX_FLOAT m_fButtonLen;
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FX_BOOL m_bMinSize;
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CFX_RectF m_rtClient;
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CFX_RectF m_rtThumb;
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CFX_RectF m_rtMinBtn;
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CFX_RectF m_rtMaxBtn;
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CFX_RectF m_rtMinTrack;
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CFX_RectF m_rtMaxTrack;
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FX_BOOL m_bCustomLayout;
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FX_FLOAT m_fMinThumb;
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};
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class CFWL_ScrollBarImpDelegate : public CFWL_WidgetImpDelegate {
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public:
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CFWL_ScrollBarImpDelegate(CFWL_ScrollBarImp* pOwner);
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void OnProcessMessage(CFWL_Message* pMessage) override;
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void OnDrawWidget(CFX_Graphics* pGraphics,
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const CFX_Matrix* pMatrix = nullptr) override;
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protected:
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void OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
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void OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
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void OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
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void OnMouseLeave();
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void OnMouseWheel(FX_FLOAT fx,
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FX_FLOAT fy,
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uint32_t dwFlags,
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FX_FLOAT fDeltaX,
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FX_FLOAT fDeltaY);
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void DoMouseDown(int32_t iItem,
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const CFX_RectF& rtItem,
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int32_t& iState,
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FX_FLOAT fx,
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FX_FLOAT fy);
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void DoMouseUp(int32_t iItem,
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const CFX_RectF& rtItem,
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int32_t& iState,
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FX_FLOAT fx,
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FX_FLOAT fy);
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void DoMouseMove(int32_t iItem,
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const CFX_RectF& rtItem,
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int32_t& iState,
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FX_FLOAT fx,
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FX_FLOAT fy);
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void DoMouseLeave(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState);
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void DoMouseHover(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState);
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CFWL_ScrollBarImp* m_pOwner;
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};
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#endif // XFA_FWL_BASEWIDGET_FWL_SCROLLBARIMP_H_
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