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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 XFA_FWL_BASEWIDGET_FWL_SCROLLBARIMP_H_
#define XFA_FWL_BASEWIDGET_FWL_SCROLLBARIMP_H_
#include "xfa/fwl/core/fwl_widgetimp.h"
#include "xfa/include/fwl/core/fwl_timer.h"
class CFWL_WidgetImpProperties;
class IFWL_Widget;
class CFWL_ScrollBarImpDelegate;
class CFWL_ScrollBarImp : public CFWL_WidgetImp, public IFWL_Timer {
public:
CFWL_ScrollBarImp(const CFWL_WidgetImpProperties& properties,
IFWL_Widget* pOuter);
~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 int32_t 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;
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;
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);
int32_t OnProcessMessage(CFWL_Message* pMessage) override;
FWL_ERR OnDrawWidget(CFX_Graphics* pGraphics,
const CFX_Matrix* pMatrix = NULL) override;
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(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_ScrollBarImp* m_pOwner;
};
#endif // XFA_FWL_BASEWIDGET_FWL_SCROLLBARIMP_H_
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