com.jinsight.jetchart
Class GaugeGraphEventListener

java.lang.Object
  com.jinsight.jetchart.GaugeGraphEventListener

All Implemented Interfaces:

java.util.EventListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener

public class GaugeGraphEventListener

extends java.lang.Object

implements java.awt.event.MouseListener, java.awt.event.MouseMotionListener

This class implements callback methods to handle mouse events dispatched by the GaugeGraph class. If for some reason mouse event handling has to be changed without losing pre-built functionalities, remove references to an instance of this class from the GaugeGraph object and extend GaugeGraphEventListener, changing the callback methods adequately. To remove the primary GaugeGraphEventListener, which is created when the GaugeGraph class is instantiated, do as follows:

GaugeGraph graph=new GaugeGraph();
GaugeGraphEventListener g=graph.getGaugeGraphEventListener();
graph.removeMouseListener(g);
graph.removeMouseMotionListener(g);

See Also:

GaugeGraph, GaugeGraph.getGaugeGraphEventListener()

Constructor Summary

GaugeGraphEventListener(GaugeGraph graph)
Constructor of the GaugeGraphEventListener class.

Method Summary

void	mouseClicked(java.awt.event.MouseEvent evt) This method is called when a mouse button is pressed and released within the chart area.
void	mouseDragged(java.awt.event.MouseEvent evt) This method is called when mouse is clicked within the chart area and dragged.
void	mouseEntered(java.awt.event.MouseEvent evt) This method is called when the cursor enters the chart area.
void	mouseExited(java.awt.event.MouseEvent evt) This method is called when the cursor exits the chart area.
void	mouseMoved(java.awt.event.MouseEvent evt) This method is called when mouse is moved within the chart area.
void	mousePressed(java.awt.event.MouseEvent evt) This method is called when a mouse button is pressed within the chart area.
void	mouseReleased(java.awt.event.MouseEvent evt) This method is called when a mouse button is released within the chart area.

Methods inherited from class java.lang.Object

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

Constructor Detail

GaugeGraphEventListener

public GaugeGraphEventListener(GaugeGraph graph)

Constructor of the GaugeGraphEventListener class. It takes a reference to the GaugeGraph object that generates mouse events.

Parameters:

graph - A GaugeGraph object.

See Also:

GaugeGraph

Method Detail

mouseClicked

public void mouseClicked(java.awt.event.MouseEvent evt)

This method is called when a mouse button is pressed and released within the chart area.

Specified by:

mouseClicked in interface java.awt.event.MouseListener

Parameters:

evt - A MouseEvent object.

mouseEntered

public void mouseEntered(java.awt.event.MouseEvent evt)

This method is called when the cursor enters the chart area.

Specified by:

mouseEntered in interface java.awt.event.MouseListener

Parameters:

evt - A MouseEvent object.

mouseExited

public void mouseExited(java.awt.event.MouseEvent evt)

This method is called when the cursor exits the chart area.

Specified by:

mouseExited in interface java.awt.event.MouseListener

Parameters:

evt - A MouseEvent object.

mousePressed

public void mousePressed(java.awt.event.MouseEvent evt)

This method is called when a mouse button is pressed within the chart area.

Specified by:

mousePressed in interface java.awt.event.MouseListener

Parameters:

evt - A MouseEvent object.

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent evt)

This method is called when a mouse button is released within the chart area.

Specified by:

mouseReleased in interface java.awt.event.MouseListener

Parameters:

evt - A MouseEvent object.

mouseDragged

public void mouseDragged(java.awt.event.MouseEvent evt)

This method is called when mouse is clicked within the chart area and dragged.

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener

Parameters:

evt - A MouseEvent object.

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent evt)

This method is called when mouse is moved within the chart area.

Specified by:

mouseMoved in interface java.awt.event.MouseMotionListener

Parameters:

evt - A MouseEvent object.