com.jinsight.jetchart
Class GraphEventListener

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

public class GraphEventListener
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 Graph 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 Graph object and extend GraphEventListener, changing the callback methods adequately. To remove the primary GraphEventListener, which is created when the Graph class is instantiated, do as follows:

Graph graph=new Graph();
GraphEventListener g=graph.getGraphEventListener();
graph.removeMouseListener(g);
graph.removeMouseMotionListener(g);

See Also:
Graph, Graph.getGraphEventListener()

Constructor Summary
GraphEventListener(Graph graph)
          Constructor of the GraphEventListener class.
 
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

GraphEventListener

public GraphEventListener(Graph graph)
Constructor of the GraphEventListener class. It takes a reference to the Graph object that generates mouse events.
Parameters:
graph - A Graph object.
See Also:
Graph
Method Detail

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.

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.

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.

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