fr.lifl.jedi.gui.display.colorGrid.view.agentDisplay
Class EmptyDisplayer

java.lang.Object
  fr.lifl.jedi.gui.display.colorGrid.view.agentDisplay.EmptyDisplayer

All Implemented Interfaces:

AgentDisplayer

public class EmptyDisplayer
extends java.lang.Object
implements AgentDisplayer

This class defines a tool used to display agents in the environment.

It does not display the agent.

This class uses the singleton design pattern.

Version:

JEDI V 2.0

Created the 4th nov. 2008

Modified the 5th may 2009

Author:

Yoann Kubera

SMAC Team (Systèmes Multi-Agents et Comportement)

LIFL (Laboratoire d'Informatique Fondamentale de Lille)

University of Lille, France

Constructor Summary

EmptyDisplayer()

Method Summary

void	drawAgent(java.awt.Graphics g, Environment e, Agent a, int factor, int height) Displays the agent in the environment.
static EmptyDisplayer	getInstance() Gets the instance of this singleton class.
boolean	isDisplayable(Agent a) Checks if the agent is displayed in GUI or not.
boolean	isDisplayedInBackground() Checks if the agent has to be displayed on the background of the GUI.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyDisplayer

public EmptyDisplayer()

Method Detail

getInstance

public static EmptyDisplayer getInstance()

Gets the instance of this singleton class.

Returns:

The instance of this singleton class.

drawAgent

public void drawAgent(java.awt.Graphics g,
                      Environment e,
                      Agent a,
                      int factor,
                      int height)

Description copied from interface: AgentDisplayer

Displays the agent in the environment.

Sadly, Swing uses a cartesian coordinate system where the y axis goes from up to down. Thus, y coordinates have to be inverted, in order to correspond to coordinates in the model used in JEDI.

This requires a particular additional parameter, that corresponds to the total height of displayed simulation.

The width of the black border around the environment is equal to factor. Keep in mind that the black border all around the environment has to be taken into account when computing displayed areas: the (0, 0) coordinate of the environment lies in the (factor, factor - height) coordinate of the panel.

Specified by:

drawAgent in interface AgentDisplayer

Parameters:

g - The object where drawing is made.

e - The environment of the simulation.

a - The agent to be displayed.

factor - The scaling factor used. It defines the number of pixels corresponding to a unit in the environment.

height - The height of the rectangle displaying the environment. It is equal to the height of the environment * the scaling factor.

See Also:

AgentDisplayer.drawAgent(java.awt.Graphics, fr.lifl.jedi.model.Environment, fr.lifl.jedi.model.Agent, int, int)

isDisplayable

public boolean isDisplayable(Agent a)

Description copied from interface: AgentDisplayer

Checks if the agent is displayed in GUI or not.

Specified by:

isDisplayable in interface AgentDisplayer

Parameters:

a - The agent checked by this method

Returns:

true if the agent is displayed in the GUI.

See Also:

AgentDisplayer.isDisplayable(fr.lifl.jedi.model.Agent)

isDisplayedInBackground

public boolean isDisplayedInBackground()

Description copied from interface: AgentDisplayer

Checks if the agent has to be displayed on the background of the GUI.

Specified by:

isDisplayedInBackground in interface AgentDisplayer

Returns:

true if the agent has to be displayed on the background of the GUI.

See Also:

AgentDisplayer.isDisplayedInBackground()