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High-speed Charting Control

, 13 Jul 2010 CPOL
A flexible charting control to display 2D data
chartcrtl_src.zip
ChartCtrl_demo.zip
ChartDemo
ChartCtrl
.svn
all-wcprops
entries
format
prop-base
props
text-base
ChartAxis.cpp.svn-base
ChartAxis.h.svn-base
ChartAxisLabel.cpp.svn-base
ChartAxisLabel.h.svn-base
ChartBalloonLabel.h.svn-base
ChartBalloonLabel.inl.svn-base
ChartBarSerie.cpp.svn-base
ChartBarSerie.h.svn-base
ChartCandlestickSerie.cpp.svn-base
ChartCandlestickSerie.h.svn-base
ChartCrossHairCursor.cpp.svn-base
ChartCrossHairCursor.h.svn-base
ChartCtrl.cpp.svn-base
ChartCtrl.h.svn-base
ChartCursor.cpp.svn-base
ChartCursor.h.svn-base
ChartDateTimeAxis.cpp.svn-base
ChartDateTimeAxis.h.svn-base
ChartDragLineCursor.cpp.svn-base
ChartDragLineCursor.h.svn-base
ChartFont.cpp.svn-base
ChartFont.h.svn-base
ChartGanttSerie.cpp.svn-base
ChartGanttSerie.h.svn-base
ChartGradient.cpp.svn-base
ChartGradient.h.svn-base
ChartGrid.cpp.svn-base
ChartGrid.h.svn-base
ChartLabel.h.svn-base
ChartLabel.inl.svn-base
ChartLegend.cpp.svn-base
ChartLegend.h.svn-base
ChartLineSerie.cpp.svn-base
ChartLineSerie.h.svn-base
ChartLogarithmicAxis.cpp.svn-base
ChartLogarithmicAxis.h.svn-base
ChartMouseListener.h.svn-base
ChartPointsArray.h.svn-base
ChartPointsArray.inl.svn-base
ChartPointsSerie.cpp.svn-base
ChartPointsSerie.h.svn-base
ChartScrollBar.cpp.svn-base
ChartScrollBar.h.svn-base
ChartSerie.cpp.svn-base
ChartSerie.h.svn-base
ChartSerieBase.h.svn-base
ChartSerieBase.inl.svn-base
ChartSeriesMouseListener.h.svn-base
ChartStandardAxis.cpp.svn-base
ChartStandardAxis.h.svn-base
ChartString.h.svn-base
ChartSurfaceSerie.cpp.svn-base
ChartSurfaceSerie.h.svn-base
ChartTitle.cpp.svn-base
ChartTitle.h.svn-base
ChartXYSerie.cpp.svn-base
ChartXYSerie.h.svn-base
PointsOrdering.h.svn-base
tmp
prop-base
props
text-base
ChartBalloonLabel.inl
ChartCtrl_source.zip
ChartLabel.inl
ChartPointsArray.inl
ChartSerieBase.inl
ChartDemo.dsp
ChartDemo.dsw
ColourPicker
.svn
entries
format
prop-base
props
text-base
ColourPicker.cpp.svn-base
ColourPicker.h.svn-base
ColourPopup.cpp.svn-base
ColourPopup.h.svn-base
tmp
prop-base
props
text-base
Doc
html
class_c_chart_axis.png
class_c_chart_balloon_label.png
class_c_chart_bar_serie.png
class_c_chart_candlestick_serie.png
class_c_chart_cross_hair_cursor.png
class_c_chart_cursor.png
class_c_chart_date_time_axis.png
class_c_chart_drag_line_cursor.png
class_c_chart_gantt_serie.png
class_c_chart_label.png
class_c_chart_line_serie.png
class_c_chart_logarithmic_axis.png
class_c_chart_points_serie.png
class_c_chart_serie.png
class_c_chart_serie_base.png
class_c_chart_standard_axis.png
class_c_chart_surface_serie.png
class_c_chart_x_y_serie.png
doxygen.png
tab_b.gif
tab_l.gif
tab_r.gif
res
ChartDemo.ico
ChartCtrl_doxygen.zip
html
class_c_chart_axis.png
class_c_chart_balloon_label.png
class_c_chart_bar_serie.png
class_c_chart_candlestick_serie.png
class_c_chart_cross_hair_cursor.png
class_c_chart_cursor.png
class_c_chart_date_time_axis.png
class_c_chart_drag_line_cursor.png
class_c_chart_gantt_serie.png
class_c_chart_label.png
class_c_chart_line_serie.png
class_c_chart_logarithmic_axis.png
class_c_chart_points_serie.png
class_c_chart_serie.png
class_c_chart_serie_base.png
class_c_chart_standard_axis.png
class_c_chart_surface_serie.png
class_c_chart_x_y_serie.png
doxygen.png
tab_b.gif
tab_l.gif
tab_r.gif
ChartCtrl_source.zip
ChartLabel.inl
ChartPointsArray.inl
ChartSerieBase.inl
ChartBalloonLabel.inl
chartctrl_src.zip
chartctr_demo.zip
ChartDemo.clw
ChartDemo.dsp
ChartDemo.dsw
res
ChartDemo.ico
/*
 *
 *	ChartCursor.h
 *
 *	Written by C�dric 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.
 *
 *
 */

#ifndef _CHARTCURSOR_H_
#define _CHARTCURSOR_H_

#include <list>

class CChartCtrl;
class CChartCursor;

//! Interface to implement in order to be notified about a cursor movement.
/**
	This class must be overriden and registered with a CChartCursor by
	calling RegisterListener.
**/
class CChartCursorListener
{
public:
	//! Default constructor
	CChartCursorListener()  { }
	//! Destructor
	virtual ~CChartCursorListener()  { }

	//! Pure virtual function to implement in order to be notified about a cursor movement.
	/**
		Note that not all cursor types have an X and a Y value, in which case, only
		the relevant information is passed, the other value will be 0.
		@param pCursor
			The cursor which was moved
		@param xValue
			The cursor xValue
		@param yValue
			The cursor yValue
	**/
	virtual void OnCursorMoved(CChartCursor* pCursor, double xValue, double yValue) = 0;
};

//! Base class for cursors which can be added to the chart control.
/**
	This class must be overriden for specific cursor types. This is already done
	for a cross-hair cursor and a dragline cursor. Each cursor is assigned an Id
	when it is added to the control.
**/
class CChartCursor
{
	friend CChartCtrl;

public:
	//! Sets the cursor color.
	void SetColor(COLORREF cursorColor);
	//! Retrieves the cursor Id.
	unsigned GetCursorId() const  { return m_uCursorId; }

	//! Registers a cursor listener with this cursor.
	void RegisterListener(CChartCursorListener* pListener);

protected:
	//! Default constructor
	CChartCursor(CChartCtrl* pParent); 
	//! Default destructor
	virtual ~CChartCursor();

	//! Pure virtual function that is called when the mouse moved on the plot area.
	/**
		This function must be overriden by child classes to take appropriate
		actions on the mouse move event.
	**/
	virtual void OnMouseMove(CPoint mousePoint) = 0;
	//! Virtual function that is called when the left mouse button is pressed.
	/**
		This function can be overriden by child classes to take appropriate
		actions on the mouse click event.
	**/
	virtual void OnMouseButtonDown(CPoint /*mousePoint*/)  { }
	//! Virtual function that is called when the left mouse button is released.
	/**
		This function can be overriden by child classes to take appropriate
		actions on the mouse click event.
	**/
	virtual void OnMouseButtonUp(CPoint /*mousePoint*/)    { }

	//! Pure virtual function that draws the cursor.
	virtual void Draw(CDC* pDC) = 0;
	//! Function that is called by the child classes when the cursor has been moved.
	/**
		This will notify all the listeners registered with the cursor.
	**/
	void CursorMoved(double newXValue, double newYValue);


	//! The color of the cursor.
	COLORREF m_colCursor;
	//! The parent charting control.
	CChartCtrl* m_pParentCtrl;

	//! Static variable holding the next free cursor Id.
	static unsigned m_uNextFreeId;
	//! The Id of this curosr.
	unsigned m_uCursorId;

	typedef std::list<CChartCursorListener*> TListenerList;
	//! List of all listeners registered with this cursor.
	TListenerList m_lstListeners;
};

#endif  // _CHARTCURSOR_H_

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Cedric Moonen
Engineer
Belgium Belgium
I am a 29 years old guy and I live with my girlfriend in Hoegaarden, little city from Belgium well known for its white beer Smile | :) .
I studied as an industrial engineer in electronics but I oriented myself more towards software development when I started to work.
Currently I am working in a research centre in mechatronica. I mainly develop in C++ but I also do a bit of Java.
When I have so spare time, I like to read (mainly fantasy) and play electric guitar.

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