Class mjr.pstree.PSTGraph 
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Class mjr.pstree.PSTGraph 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Canvas
                   |
                   +----sprite.SpriteArea
                           |
                           +----graph.GraphArea
                                   |
                                   +----mjr.pstree.PSTGraph
public class PSTGraph
extends GraphArea
implements ButtonOwner, CheckboxOwner
Interactive graph area for the priority search tree demo.

Variable Index

o BUTTON_BORDER
o BUTTON_HEIGHT
o BUTTON_WIDTH
o LEGEND_HEIGHT
o LEGEND_TXT
o POINT_BOUND
o RANDOM_PTS
o RANGE_INST
o applet
o clear
o draw
o images
o median
o queryEdges
o queryPts
o random
o rcsid
o searchBox
o showSplitLine
o statusText
o tree

Constructor Index

o PSTGraph(Applet, int, int, ParameterInfo)

Method Index

o ButtonClicked(ButtonSprite)
o CheckboxChanged(CheckboxSprite, boolean)
o HandleBackgroundEvent(Event)
Gets input from the user that isn't intercepted by any sprite.
o LoadGraph(String)
o RemoveNode(Node)
o addPanels(Applet, String)
o addPoint(int, int)
o allowSearching()
o disallowSearching()
o dispInstructions(String[])
o dprint(String)
o dprintln(String)
o drawTree()
o getNodeAt(int, int)
o getPoints()
o loadImages(Applet, String, String[])
o lockGraph()
o randomPoints()
inserts from 0 to RANDOM_PTS random points into each of the 4 quadrants of the graph
o rangeQuery(int, int, int)
o showStatus()
displays the current instructions in the status area of the applet
o trouble(String)
o unLockGraph()

Variables

o draw 
  protected ButtonSprite draw
o clear 
  protected ButtonSprite clear
o random 
  protected ButtonSprite random
o searchBox 
  protected SearchBoxSprite searchBox
o median 
  protected CheckboxSprite median
o queryPts 
  protected Vector queryPts
o queryEdges 
  protected Vector queryEdges
o images 
  protected Vector images
o tree 
  protected PSTree tree
o applet 
  protected Applet applet
o showSplitLine 
  protected boolean showSplitLine
o statusText 
  protected String statusText
o RANGE_INST 
  protected final static String RANGE_INST[]
o rcsid 
  public final static String rcsid
o RANDOM_PTS 
  public final static int RANDOM_PTS
o BUTTON_WIDTH 
  public final static int BUTTON_WIDTH
o BUTTON_HEIGHT 
  public final static int BUTTON_HEIGHT
o BUTTON_BORDER 
  public final static int BUTTON_BORDER
o POINT_BOUND 
  public int POINT_BOUND
o LEGEND_HEIGHT 
  public final static int LEGEND_HEIGHT
o LEGEND_TXT 
  protected final static String LEGEND_TXT[]

Constructors

o PSTGraph 
  public PSTGraph(Applet applet,
                  int WIDTH,
                  int HEIGHT,
                  ParameterInfo info)

Methods

o getPoints 
  protected Vector getPoints()
o dispInstructions 
  public void dispInstructions(String theInst[])
o showStatus 
  public void showStatus()
displays the current instructions in the status area of the applet
o randomPoints 
  protected void randomPoints()
inserts from 0 to RANDOM_PTS random points into each of the 4 quadrants of the graph
o CheckboxChanged 
  public void CheckboxChanged(CheckboxSprite checkbox,
                              boolean newState)
o ButtonClicked 
  public void ButtonClicked(ButtonSprite button)
o loadImages 
  protected Vector loadImages(Applet applet,
                              String base,
                              String gifs[])
o rangeQuery 
  public void rangeQuery(int x0,
                         int x1,
                         int y0)
o allowSearching 
  protected void allowSearching()
o disallowSearching 
  protected void disallowSearching()
o lockGraph 
  protected void lockGraph()
o unLockGraph 
  protected void unLockGraph()
o drawTree 
  protected synchronized void drawTree()
o HandleBackgroundEvent 
  public void HandleBackgroundEvent(Event e)
Gets input from the user that isn't intercepted by any sprite. Currently only handles mouse clicks, which create a new node.
Overrides:
HandleBackgroundEvent in class SpriteArea
o addPoint 
  protected PSTNode addPoint(int x,
                             int y)
o RemoveNode 
  protected void RemoveNode(Node node)
Overrides:
RemoveNode in class GraphArea
o getNodeAt 
  public PSTNode getNodeAt(int x,
                           int y)
o LoadGraph 
  public synchronized void LoadGraph(String s)
Overrides:
LoadGraph in class GraphArea
o dprintln 
  public void dprintln(String str)
o dprint 
  public void dprint(String str)
o trouble 
  public void trouble(String str)
o addPanels 
  protected void addPanels(Applet applet,
                           String theTile)

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