Class Cursor

java.lang.Object

java.awt.event.MouseAdapter

org.knowm.xchart.internal.chartpart.Cursor

All Implemented Interfaces:

MouseListener, MouseMotionListener, MouseWheelListener, EventListener, ChartPart

public class Cursor
extends MouseAdapter
implements ChartPart

Cursor movement to display matching point data information.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	Cursor.DataPoint

Field Summary

Fields

Modifier and Type	Field	Description
private final Chart	chart
private final List<Cursor.DataPoint>	dataPointList
private static final int	LINE_SPACING
private final List<Cursor.DataPoint>	matchingDataPointList
private static final int	MOUSE_SPACING
private double	mouseX
private double	mouseY
private final Map<String,Series>	seriesMap
private double	startX
private double	startY
private final XYStyler	styler
private double	textHeight

Fields inherited from interface ChartPart

SOLID_STROKE

Constructor Summary

Constructors

Constructor	Description
Cursor(Chart chart)	Constructor

Method Summary

Modifier and Type	Method	Description
(package private) void	addData(double xOffset, double yOffset, String xValue, String yValue, String seriesName)
private void	calculateMatchingDataPoints()	One DataPoint per series, keep the DataPoint closest to mouseX
Rectangle2D	getBounds()
private boolean	isMouseOutOfPlotContent()
void	mouseMoved(MouseEvent e)
void	paint(Graphics2D g)
private void	paintBackGround(Graphics2D g, TextLayout xValueTextLayout)
private void	paintDataPointInfo(Graphics2D g, TextLayout xValueTextLayout)
private void	paintVerticalLine(Graphics2D g, Cursor.DataPoint dataPoint)

Methods inherited from class MouseAdapter

mouseClicked, mouseDragged, mouseEntered, mouseExited, mousePressed, mouseReleased, mouseWheelMoved

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LINE_SPACING

private static final int LINE_SPACING

See Also:

• Constant Field Values

MOUSE_SPACING

private static final int MOUSE_SPACING

See Also:

• Constant Field Values

dataPointList

private final List<Cursor.DataPoint> dataPointList

matchingDataPointList

private final List<Cursor.DataPoint> matchingDataPointList

chart

private final Chart chart

styler

private final XYStyler styler

seriesMap

private final Map<String,Series> seriesMap

mouseX

private double mouseX

mouseY

private double mouseY

startX

private double startX

startY

private double startY

textHeight

private double textHeight

Constructor Details

Cursor

public Cursor(Chart chart)

Constructor

Parameters:

chart -

Method Details

mouseMoved

public void mouseMoved(MouseEvent e)

Specified by:

mouseMoved in interface MouseMotionListener

Overrides:

mouseMoved in class MouseAdapter

isMouseOutOfPlotContent

private boolean isMouseOutOfPlotContent()

getBounds

public Rectangle2D getBounds()

Specified by:

getBounds in interface ChartPart

paint

public void paint(Graphics2D g)

Specified by:

paint in interface ChartPart

paintVerticalLine

private void paintVerticalLine(Graphics2D g,
 Cursor.DataPoint dataPoint)

paintBackGround

private void paintBackGround(Graphics2D g,
 TextLayout xValueTextLayout)

paintDataPointInfo

private void paintDataPointInfo(Graphics2D g,
 TextLayout xValueTextLayout)

addData

void addData(double xOffset,
 double yOffset,
 String xValue,
 String yValue,
 String seriesName)

calculateMatchingDataPoints

private void calculateMatchingDataPoints()

One DataPoint per series, keep the DataPoint closest to mouseX