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// 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 _FWL_SCROLLBAR_IMP_H
#define _FWL_SCROLLBAR_IMP_H
class CFWL_WidgetImp;
class CFWL_WidgetImpProperties;
class CFWL_WidgetImpDelegate;
class IFWL_Widget;
class IFWL_Timer;
class IFWL_TimerDelegate;
class CFWL_ScrollBarImp;
class CFWL_ScrollBarImpDelegate;
class CFWL_ScrollBarImp : public CFWL_WidgetImp, public IFWL_Timer
{
public:
CFWL_ScrollBarImp(IFWL_Widget *pOuter = NULL);
CFWL_ScrollBarImp(const CFWL_WidgetImpProperties &properties, IFWL_Widget *pOuter = NULL);
~CFWL_ScrollBarImp();
virtual FWL_ERR GetClassName(CFX_WideString &wsClass) const;
virtual FX_DWORD GetClassID() const;
virtual FWL_ERR Initialize();
virtual FWL_ERR Finalize();
virtual FWL_ERR GetWidgetRect(CFX_RectF &rect, FX_BOOL bAutoSize = FALSE);
virtual FWL_ERR Update();
virtual FWL_ERR DrawWidget(CFX_Graphics *pGraphics, const CFX_Matrix *pMatrix = NULL);
virtual FX_BOOL IsVertical() ;
virtual FWL_ERR GetRange(FX_FLOAT &fMin, FX_FLOAT &fMax);
virtual FWL_ERR SetRange(FX_FLOAT fMin, FX_FLOAT fMax);
virtual FX_FLOAT GetPageSize();
virtual FWL_ERR SetPageSize(FX_FLOAT fPageSize);
virtual FX_FLOAT GetStepSize();
virtual FWL_ERR SetStepSize(FX_FLOAT fStepSize);
virtual FX_FLOAT GetPos();
virtual FWL_ERR SetPos(FX_FLOAT fPos);
virtual FX_FLOAT GetTrackPos();
virtual FWL_ERR SetTrackPos(FX_FLOAT fTrackPos);
virtual FX_BOOL DoScroll(FX_DWORD dwCode, FX_FLOAT fPos = 0.0f);
virtual FWL_ERR SetOuter(IFWL_Widget *pOuter);
virtual FX_INT32 Run(FWL_HTIMER hTimer);
protected:
void DrawTrack(CFX_Graphics *pGraphics, IFWL_ThemeProvider *pTheme, FX_BOOL bLower = TRUE, const CFX_Matrix *pMatrix = NULL);
void DrawArrowBtn(CFX_Graphics *pGraphics, IFWL_ThemeProvider *pTheme, FX_BOOL bMinBtn = TRUE, const CFX_Matrix *pMatrix = NULL);
void DrawThumb(CFX_Graphics *pGraphics, IFWL_ThemeProvider *pTheme, const CFX_Matrix *pMatrix = NULL);
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, FX_BOOL bLower = TRUE);
FX_BOOL SendEvent();
FX_BOOL OnScroll(FX_DWORD dwCode, FX_FLOAT fPos);
FWL_HTIMER m_hTimer;
FX_FLOAT m_fRangeMin;
FX_FLOAT m_fRangeMax;
FX_FLOAT m_fPageSize;
FX_FLOAT m_fStepSize;
FX_FLOAT m_fPos;
FX_FLOAT m_fTrackPos;
FX_INT32 m_iMinButtonState;
FX_INT32 m_iMaxButtonState;
FX_INT32 m_iThumbButtonState;
FX_INT32 m_iMinTrackState;
FX_INT32 m_iMaxTrackState;
FX_FLOAT m_fLastTrackPos;
FX_FLOAT m_cpTrackPointX;
FX_FLOAT m_cpTrackPointY;
FX_INT32 m_iMouseWheel;
FX_BOOL m_bTrackMouseLeave;
FX_BOOL m_bMouseHover;
FX_BOOL m_bMouseDown;
FX_BOOL m_bRepaintThumb;
FX_FLOAT m_fButtonLen;
FX_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_BOOL m_bCustomLayout;
FX_FLOAT m_fMinThumb;
friend class CFWL_ScrollBarImpDelegate;
};
class CFWL_ScrollBarImpDelegate : public CFWL_WidgetImpDelegate
{
public:
CFWL_ScrollBarImpDelegate(CFWL_ScrollBarImp *pOwner);
virtual FX_INT32 OnProcessMessage(CFWL_Message *pMessage);
virtual FWL_ERR OnDrawWidget(CFX_Graphics *pGraphics, const CFX_Matrix *pMatrix = NULL);
protected:
void OnLButtonDown(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
void OnLButtonUp(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
void OnMouseMove(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
void OnMouseLeave();
void OnMouseWheel(FX_FLOAT fx, FX_FLOAT fy, FX_DWORD dwFlags, FX_FLOAT fDeltaX, FX_FLOAT fDeltaY);
void DoMouseDown(FX_INT32 iItem, const CFX_RectF &rtItem, FX_INT32 &iState, FX_FLOAT fx, FX_FLOAT fy);
void DoMouseUp(FX_INT32 iItem, const CFX_RectF &rtItem, FX_INT32 &iState, FX_FLOAT fx, FX_FLOAT fy);
void DoMouseMove(FX_INT32 iItem, const CFX_RectF &rtItem, FX_INT32 &iState, FX_FLOAT fx, FX_FLOAT fy);
void DoMouseLeave(FX_INT32 iItem, const CFX_RectF &rtItem, FX_INT32 &iState);
void DoMouseHover(FX_INT32 iItem, const CFX_RectF &rtItem, FX_INT32 &iState);
CFWL_ScrollBarImp *m_pOwner;
};
#endif
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