com.jinsight.jetchart
Class PieGraphEventListener

java.lang.Object
  |
  +--com.jinsight.jetchart.PieGraphEventListener
All Implemented Interfaces:
java.util.EventListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener

public class PieGraphEventListener
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 PieGraph 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 PieGraph object and extend PieGraphEventListener, changing the callback methods adequately. To remove the primary PieGraphEventListener, which is created when the PieGraph class is instantiated, do as follows: PieGraph graph=new PieGraph(); PieGraphEventListener g=graph.getPieGraphEventListener(); graph.removeMouseListener(g); graph.removeMouseMotionListener(g);

See Also:
PieGraph, PieGraph.getPieGraphEventListener()

Constructor Summary
PieGraphEventListener(PieGraph graph)
           
 
Method Summary
protected  void finalize()
           
 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, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PieGraphEventListener

public PieGraphEventListener(PieGraph graph)
Method Detail

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.

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.

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.

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.

finalize

protected void finalize()
                 throws java.lang.Throwable
Overrides:
finalize in class java.lang.Object