public class CrosshairOverlay extends AbstractOverlay implements Overlay, PropertyChangeListener, Cloneable, Serializable
ChartPanel
that draws crosshairs on a plot.Constructor and Description |
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CrosshairOverlay()
Default constructor.
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Modifier and Type | Method and Description |
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void |
addDomainCrosshair(Crosshair crosshair)
Adds a crosshair against the domain axis.
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void |
addRangeCrosshair(Crosshair crosshair)
Adds a crosshair against the range axis.
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void |
clearDomainCrosshairs() |
void |
clearRangeCrosshairs() |
Object |
clone()
Returns a clone of this instance.
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protected void |
drawHorizontalCrosshair(Graphics2D g2,
Rectangle2D dataArea,
double y,
Crosshair crosshair)
Draws a crosshair horizontally across the plot.
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protected void |
drawVerticalCrosshair(Graphics2D g2,
Rectangle2D dataArea,
double x,
Crosshair crosshair)
Draws a crosshair vertically on the plot.
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boolean |
equals(Object obj)
Tests this overlay for equality with an arbitrary object.
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List |
getDomainCrosshairs() |
List |
getRangeCrosshairs() |
void |
paintOverlay(Graphics2D g2,
ChartPanel chartPanel)
Paints the crosshairs in the layer.
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void |
propertyChange(PropertyChangeEvent e)
Receives a property change event (typically a change in one of the
crosshairs).
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void |
removeDomainCrosshair(Crosshair crosshair) |
void |
removeRangeCrosshair(Crosshair crosshair) |
addChangeListener, fireOverlayChanged, notifyListeners, removeChangeListener
finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
addChangeListener, removeChangeListener
public CrosshairOverlay()
public void addDomainCrosshair(Crosshair crosshair)
crosshair
- the crosshair.public void removeDomainCrosshair(Crosshair crosshair)
public void clearDomainCrosshairs()
public List getDomainCrosshairs()
public void addRangeCrosshair(Crosshair crosshair)
crosshair
- the crosshair.public void removeRangeCrosshair(Crosshair crosshair)
public void clearRangeCrosshairs()
public List getRangeCrosshairs()
public void propertyChange(PropertyChangeEvent e)
propertyChange
in interface PropertyChangeListener
e
- the event.public void paintOverlay(Graphics2D g2, ChartPanel chartPanel)
paintOverlay
in interface Overlay
g2
- the graphics target.chartPanel
- the chart panel.protected void drawHorizontalCrosshair(Graphics2D g2, Rectangle2D dataArea, double y, Crosshair crosshair)
g2
- the graphics target.dataArea
- the data area.y
- the y-value in Java2D space.crosshair
- the crosshair.protected void drawVerticalCrosshair(Graphics2D g2, Rectangle2D dataArea, double x, Crosshair crosshair)
g2
- the graphics target.dataArea
- the data area.x
- the x-value in Java2D space.crosshair
- the crosshair.public Object clone() throws CloneNotSupportedException
clone
in class Object
CloneNotSupportedException
- if there is some problem
with the cloning.Copyright © 2000-2009 by Object Refinery Limited. All Rights Reserved.