sjm.examples.sling
Class SlingTarget

java.lang.Object
  |
  +--sjm.examples.sling.SlingTarget

public class SlingTarget

extends java.lang.Object

implements PubliclyCloneable

This class provides a target for a SlingParser . The target holds a scope for variables, two sliders, and the RenderableCollection object which the user's commands will fill with renderable functions.

Field Summary

protected static int	DEFAULT_NLINE
protected RenderableCollection	renderables
protected javax.swing.JSlider	s1
protected javax.swing.JSlider	s2
protected Scope	scope

Constructor Summary

SlingTarget(javax.swing.JSlider s1, javax.swing.JSlider s2)
Construct a target, given two sliders.

Method Summary

java.lang.Object	clone() Return this object.
RenderableCollection	getRenderables() Return the renderables collection which is the destination for the user's renderable functions.
boolean	isDefined(java.lang.String s) Return true, if the given variable name exists in this target's scope.
Variable	lookup(java.lang.String name) Return a variable of the given name.
Variable	nLine() Return the special variable "nLine", which establishes the number of lines to use in rendering a function.
javax.swing.JSlider	s1() Return the first slider.
javax.swing.JSlider	s2() Return the second slider.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_NLINE

protected static int DEFAULT_NLINE

scope

protected Scope scope

s1

protected javax.swing.JSlider s1

s2

protected javax.swing.JSlider s2

renderables

protected RenderableCollection renderables

Constructor Detail

SlingTarget

public SlingTarget(javax.swing.JSlider s1,
                   javax.swing.JSlider s2)

Construct a target, given two sliders.

Method Detail

clone

public java.lang.Object clone()

Return this object. The sliders do not change, there is not enough ambiguity in the language for the variables in a scope to change, and the sling plot collection is empty until parsing completes.

Specified by:

clone in interface PubliclyCloneable

Overrides:

clone in class java.lang.Object

Returns:

this object

getRenderables

public RenderableCollection getRenderables()

Return the renderables collection which is the destination for the user's renderable functions.

Returns:

the renderables collection which is the destination for the user's renderable functions

isDefined

public boolean isDefined(java.lang.String s)

Return true, if the given variable name exists in this target's scope.

lookup

public Variable lookup(java.lang.String name)

Return a variable of the given name.

Parameters:

String - the name to look up

Returns:

a variable of the given name

nLine

public Variable nLine()

Return the special variable "nLine", which establishes the number of lines to use in rendering a function.

Returns:

the special variable "nLine", which establishes the number of lines to use in rendering a function

s1

public javax.swing.JSlider s1()

Return the first slider.

Returns:

the first slider

s2

public javax.swing.JSlider s2()

Return the second slider.

Returns:

the second slider