Class WalTreeCanvas 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Canvas
                   |
                   +----WalTreeCanvas
public class WalTreeCanvas
extends Canvas
Basic canvas for creating and displaying a WalTree. This is part of the WalTree package, created by Walter Korman to enable the visually appealing display of M-ary trees. More documentation is available at his web site; follow the link below to get to it.

Documentation

Author:
Walter Korman

Constructor Index

o WalTreeCanvas()
Constructs new WalTreeCanvas, an associated WTFactory, and inits state.

Method Index

o makeNode(String, WNode, WNode, WNode)
Create a new node with the given attributes, calculating width to match the displayed node name text.
o makeNodeOfWidth(String, int, WNode, WNode, WNode)
Create a new node with the given attributes and the specified width.
o minimumSize()
o paint(Graphics)
Draw the tree associated with this canvas.
o preferredSize()
o setDefaultBorder(int)
Set the default border size for nodes
o setParentDistance(int)
Set the distance between parent nodes.
o setRootOffset(int)
Set the horizontal offset between edge of canvas and root node.
o setTree(WNode)
Set the tree to be displayed by this canvas.

Constructors

o WalTreeCanvas 
 public WalTreeCanvas()
Constructs new WalTreeCanvas, an associated WTFactory, and inits state.

Methods

o preferredSize 
 public Dimension preferredSize()
Overrides:
preferredSize in class Component
o minimumSize 
 public Dimension minimumSize()
Overrides:
minimumSize in class Component
o makeNode 
 public WNode makeNode(String name,
                       WNode p,
                       WNode c,
                       WNode s)
Create a new node with the given attributes, calculating width to match the displayed node name text.

o makeNodeOfWidth 
 public WNode makeNodeOfWidth(String name,
                              int width,
                              WNode p,
                              WNode c,
                              WNode s)
Create a new node with the given attributes and the specified width.

o setTree 
 public void setTree(WNode t)
Set the tree to be displayed by this canvas.

o setDefaultBorder 
 public void setDefaultBorder(int b)
Set the default border size for nodes

o setParentDistance 
 public void setParentDistance(int val)
Set the distance between parent nodes.

o setRootOffset 
 public void setRootOffset(int val)
Set the horizontal offset between edge of canvas and root node.

o paint 
 public void paint(Graphics g)
Draw the tree associated with this canvas.

Overrides:
paint in class Canvas