76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/*
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*
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* ChartScrollBar.h
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*
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* Written by Cédric Moonen (cedric_moonen@hotmail.com)
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*
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*
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*
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* This code may be used for any non-commercial and commercial purposes in a compiled form.
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* The code may be redistributed as long as it remains unmodified and providing that the
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* author name and this disclaimer remain intact. The sources can be modified WITH the author
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* consent only.
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*
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* This code is provided without any garanties. I cannot be held responsible for the damage or
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* the loss of time it causes. Use it at your own risks
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*
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* An e-mail to notify me that you are using this code is appreciated also.
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*
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*
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*/
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#pragma once
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class CChartAxis;
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//! Class which manages the interaction with the axis scroll bar.
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/**
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This class is used internally by the CChartAxis class.
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**/
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class CChartScrollBar : public CScrollBar
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{
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friend CChartAxis;
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public:
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//! Creates the scroll bar within a specified rectangle.
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void CreateScrollBar(const CRect& PlottingRect);
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//! Called on horizontal scrolling.
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void OnHScroll(UINT nSBCode, UINT nPos);
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//! Called on vertical scrolling.
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void OnVScroll(UINT nSBCode, UINT nPos);
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//! Refreshes the scroll bar position.
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void Refresh();
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//! Enables/disables the scroll bar.
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void SetEnabled(bool bEnabled) { m_bEnabled = bEnabled; }
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//! Returns true if the scroll bar is enabled
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bool GetEnabled() const { return m_bEnabled; }
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//! Enables/disables the auto-hide mode.
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/**
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In auto-hide mode, the scroll bar is not visible unless the mouse
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is over the region of the scroll bar.
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**/
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void SetAutoHide(bool bAutoHide) { m_bAutoHide = bAutoHide; }
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//! Returns true if the auto-hide mode is activated.
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bool GetAutoHide() const { return m_bAutoHide; }
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//! Called when the mouse enters the scroll bar area.
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void OnMouseEnter();
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//! Called when the mouse leaves the scroll bar area.
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void OnMouseLeave();
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private:
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//! Constructor
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CChartScrollBar(CChartAxis* pParentAxis);
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//! Destructor
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~CChartScrollBar();
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bool IsScrollInverted() const;
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void MoveAxisToPos(int PreviousPos, int CurPos);
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CChartAxis* m_pParentAxis;
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bool m_bEnabled;
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bool m_bAutoHide;
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};
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