All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class graphing.TraceGraphWindow 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Canvas
                   |
                   +----graphing.GraphWindow
                           |
                           +----graphing.ZoomGraphWindow
                                   |
                                   +----graphing.TraceGraphWindow
public class TraceGraphWindow
extends ZoomGraphWindow
A TraceGraphWindow displays functions which carry a number of nodes (TraceGraphNodes) on their graphs. The nodes can be moved by mouse-dragging. Nodes can be added or deleted dynamically. A collection of nodes is selected by dragging the rubber band around it, and deleted with the backspace key.

Variable Index

o dragNode
The node that is currently being dragged
o maxNodes
The maximum number of nodes allowed in this window.
o nodes
Each node keys the function that it is attached to in this table

Constructor Index

o TraceGraphWindow()
o TraceGraphWindow(double, double, double, double)
o TraceGraphWindow(double, double, double, double, double, double)

Method Index

o deleteAll()
Delete all the nodes.
o deleteFunction(Function)
Override the method from ZoomGraphWindow to make sure all the nodes on a function are deleted when the function is deleted.
o keyDown(Event, int)
A backspace deletes the selected nodes
o mouseDown(Event, int, int)
Clicking on (or quite near) a graph causes a node to be created there.
o mouseDrag(Event, int, int)
o mouseUp(Event, int, int)
o paint(Graphics)

Variables

o nodes 
  protected Hashtable nodes
Each node keys the function that it is attached to in this table

o dragNode 
  protected TraceGraphNode dragNode
The node that is currently being dragged

o maxNodes 
  public int maxNodes
The maximum number of nodes allowed in this window.

Constructors

o TraceGraphWindow 
  public TraceGraphWindow(double xMin,
                          double xMax,
                          double xScale,
                          double yMin,
                          double yMax,
                          double yScale)
o TraceGraphWindow 
  public TraceGraphWindow(double xMin,
                          double xMax,
                          double yMin,
                          double yMax)
o TraceGraphWindow 
  public TraceGraphWindow()

Methods

o paint 
  public void paint(Graphics g)
Overrides:
paint in class ZoomGraphWindow
o mouseDown 
  public boolean mouseDown(Event evt,
                           int x,
                           int y)
Clicking on (or quite near) a graph causes a node to be created there. Clicking on an existing node selects it for dragging.

Overrides:
mouseDown in class ZoomGraphWindow
o mouseDrag 
  public boolean mouseDrag(Event evt,
                           int x,
                           int y)
Overrides:
mouseDrag in class ZoomGraphWindow
o mouseUp 
  public boolean mouseUp(Event evt,
                         int x,
                         int y)
Overrides:
mouseUp in class ZoomGraphWindow
o keyDown 
  public boolean keyDown(Event e,
                         int key)
A backspace deletes the selected nodes

Overrides:
keyDown in class Component
o deleteFunction 
  public void deleteFunction(Function f)
Override the method from ZoomGraphWindow to make sure all the nodes on a function are deleted when the function is deleted.

Overrides:
deleteFunction in class GraphWindow
o deleteAll 
  public void deleteAll()
Delete all the nodes.

Overrides:
deleteAll in class GraphWindow 
All Packages  Class Hierarchy  This Package  Previous  Next  Index