jmathlib.core.interpreter
Class GlobalValues

java.lang.Object
  jmathlib.core.interpreter.GlobalValues

public class GlobalValues
extends java.lang.Object

This class contains the global variables, which are accessible throughout the program. These include System flags The list of contexts The interpreter object The GraphicsManager The working directory These values are all private and should be access through the getter/setter functions

Constructor Summary

GlobalValues(Interpreter _interpreter, boolean _runningStandalone)
Initialises the global values

Method Summary

void	createContext(VariableList _variables) Change the current context to point to the new Variable List
Variable	createVariable(java.lang.String name) Create a variable in the local or global workspace
ContextList	getContextList() Allow access to the context list
FunctionManager	getFunctionManager() Returns a handle to the function manager
VariableList	getGlobalVariables()
GraphicsManager	getGraphicsManager() Returns a handle to the graphics manager
Interpreter	getInterpreter() Returns the interpreter object
VariableList	getLocalVariables()
java.text.NumberFormat	getNumberFormat() returns the number format for displaying numbers
PluginsManager	getPluginsManager() Returns a handle to the plugin manager
java.lang.String	getProperty(java.lang.String property) Returns one of JMathLib's properties
Variable	getVariable(java.lang.String name)
java.io.File	getWorkingDirectory() Returns the working directory
void	loadPropertiesFromFile() load JMathLib properties from a file or in applet version from the web server.
void	popContext() Return to the previous variable list
void	setNumberFormat(java.text.NumberFormat _numFormat) sets the number format for displaying numbers
void	setProperty(java.lang.String property, java.lang.String value) Sets a property of JMathLib
void	setVariable(java.lang.String name, OperandToken value) Create a variable in the local or global workspace
void	setWorkingDirectory(java.io.File _workingDir) Sets the working directory
void	storePropertiesToFile() store properties back to a file on disc.

Methods inherited from class java.lang.Object

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

Constructor Detail

GlobalValues

public GlobalValues(Interpreter _interpreter,
                    boolean _runningStandalone)

Initialises the global values

Parameters:

_interpreter - = the Interpreter object

_runningStandalone - = true if this was run from an application

Method Detail

getLocalVariables

public VariableList getLocalVariables()

Returns:

the current variable list

getGlobalVariables

public VariableList getGlobalVariables()

Returns:

the global variable list

getVariable

public Variable getVariable(java.lang.String name)

Parameters:

-

Returns:

the a variable from local or global workspace

createVariable

public Variable createVariable(java.lang.String name)

Create a variable in the local or global workspace

Parameters:

creates - a new variable

Returns:

returns the handle to that variable

setVariable

public void setVariable(java.lang.String name,
                        OperandToken value)

Create a variable in the local or global workspace

Parameters:

name - of the variable

data - of the variable

createContext

public void createContext(VariableList _variables)

Change the current context to point to the new Variable List

Parameters:

_Variables - = the new list of Variables to use

popContext

public void popContext()

Return to the previous variable list

getContextList

public ContextList getContextList()

Allow access to the context list

Returns:

the context list

getInterpreter

public Interpreter getInterpreter()

Returns the interpreter object

Returns:

pointer to Interpreter

getFunctionManager

public FunctionManager getFunctionManager()

Returns a handle to the function manager

Returns:

the function manager

getGraphicsManager

public GraphicsManager getGraphicsManager()

Returns a handle to the graphics manager

Returns:

handle to graphics manager

getPluginsManager

public PluginsManager getPluginsManager()

Returns a handle to the plugin manager

Returns:

handle to plugins manager

getWorkingDirectory

public java.io.File getWorkingDirectory()

Returns the working directory

Returns:

actual working directory

setWorkingDirectory

public void setWorkingDirectory(java.io.File _workingDir)

Sets the working directory

Parameters:

set - working directory

getNumberFormat

public java.text.NumberFormat getNumberFormat()

returns the number format for displaying numbers

Returns:

format type

setNumberFormat

public void setNumberFormat(java.text.NumberFormat _numFormat)

sets the number format for displaying numbers

Parameters:

_numFormat - format type

loadPropertiesFromFile

public void loadPropertiesFromFile()

load JMathLib properties from a file or in applet version from the web server.

storePropertiesToFile

public void storePropertiesToFile()

store properties back to a file on disc. In applet version do not store, since there is no disc

getProperty

public java.lang.String getProperty(java.lang.String property)

Returns one of JMathLib's properties

Parameters:

property -

Returns:

string value of the requested property

setProperty

public void setProperty(java.lang.String property,
                        java.lang.String value)

Sets a property of JMathLib

Parameters:

name - of property

value - of property