115 lines
3.3 KiB
C++
115 lines
3.3 KiB
C++
/*
|
|
*
|
|
* ChartLineSerie.h
|
|
*
|
|
* Written by Cédric Moonen (cedric_moonen@hotmail.com)
|
|
*
|
|
*
|
|
*
|
|
* This code may be used for any non-commercial and commercial purposes in a compiled form.
|
|
* The code may be redistributed as long as it remains unmodified and providing that the
|
|
* author name and this disclaimer remain intact. The sources can be modified WITH the author
|
|
* consent only.
|
|
*
|
|
* This code is provided without any garanties. I cannot be held responsible for the damage or
|
|
* the loss of time it causes. Use it at your own risks
|
|
*
|
|
* An e-mail to notify me that you are using this code is appreciated also.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#if !defined(AFX_CHARTLINESERIE_H__792C2F20_9650_42FA_B13D_E63911C98CE5__INCLUDED_)
|
|
#define AFX_CHARTLINESERIE_H__792C2F20_9650_42FA_B13D_E63911C98CE5__INCLUDED_
|
|
|
|
#if _MSC_VER > 1000
|
|
#pragma once
|
|
#endif // _MSC_VER > 1000
|
|
|
|
#include "ChartXYSerie.h"
|
|
|
|
//! Specialization of a CChartSerie to display a line series.
|
|
/**
|
|
The data points are connected by line segments. The curve can also
|
|
be smoothed.
|
|
**/
|
|
class CChartLineSerie : public CChartXYSerie
|
|
{
|
|
public:
|
|
//! Returns the pen style (plain, dashed, dotted, ...)
|
|
/**
|
|
For a list of pen styles available, see the CreatePen function in MSDN.
|
|
**/
|
|
int GetPenStyle() const { return m_iPenStyle; }
|
|
//! Sets the pen style (plain, dashed, dotted, ...)
|
|
/**
|
|
For a list of pen styles available, see the CreatePen function in MSDN.
|
|
**/
|
|
void SetPenStyle(int NewStyle);
|
|
|
|
//! Returns the pen width
|
|
int GetWidth() const { return m_iLineWidth; }
|
|
//! Sets the pen width
|
|
void SetWidth(int PenWidth);
|
|
//! Enables the smoothing of the curve (slower).
|
|
void SetSmooth(bool bSmooth);
|
|
|
|
//! Constructor
|
|
CChartLineSerie(CChartCtrl* pParent);
|
|
//! Destructor
|
|
virtual ~CChartLineSerie();
|
|
|
|
//! Check whether a screen point is on the series.
|
|
/**
|
|
This function returns true if the screen point is close to a line segment.
|
|
If the screen point is also close to a specific point of the series, the
|
|
index of the point is stored in the uIndex parameter. Otherwise, this
|
|
parameter contains INVALID_POINT.
|
|
@param screenPoint
|
|
The screen point to test
|
|
@param uIndex
|
|
If the point is close to a specific point of the series, its index is stored here.
|
|
@return true if the point is on the series
|
|
**/
|
|
bool IsPointOnSerie(const CPoint& screenPoint, unsigned& uIndex) const;
|
|
|
|
private:
|
|
//! Draws the legend icon for the series.
|
|
/**
|
|
@param pDC
|
|
The device context used to draw
|
|
@param rectBitmap
|
|
The rectangle in which to draw the legend icon
|
|
**/
|
|
void DrawLegend(CDC* pDC, const CRect& rectBitmap) const;
|
|
|
|
//! Draws the most recent points of the series.
|
|
/**
|
|
This function should only draw the points that were not previously
|
|
drawn.
|
|
@param pDC
|
|
The device context used to draw
|
|
**/
|
|
void Draw(CDC* pDC);
|
|
//! Redraws the full series.
|
|
/**
|
|
@param pDC
|
|
The device context used to draw
|
|
**/
|
|
void DrawAll(CDC *pDC);
|
|
|
|
//! Checks whether a point is close to a line segment
|
|
bool IsNearLine(long Axl, long Ayl,long Bxl,
|
|
long Byl, long Cxl, long Cyl) const;
|
|
|
|
|
|
//! The pen width
|
|
int m_iLineWidth;
|
|
//! The pen style
|
|
int m_iPenStyle;
|
|
//! Specifies if the curve is smoothed
|
|
bool m_bSmooth;
|
|
};
|
|
|
|
#endif // !defined(AFX_CHARTLINESERIE_H__792C2F20_9650_42FA_B13D_E63911C98CE5__INCLUDED_)
|