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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_CORE_CFWL_SCROLLBAR_H_
#define XFA_FWL_CORE_CFWL_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_widget.h"
#include "xfa/fwl/core/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 GetWidgetRect(CFX_RectF& rect, bool bAutoSize) 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_EvtScroll::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_EvtScroll::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_CORE_CFWL_SCROLLBAR_H_
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