Class World

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

World

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, ModelDisplay

public class World
extends JComponent
implements ModelDisplay

Class to represent a 2d world that can hold turtles and display them Copyright Georgia Institute of Technology 2004

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields inherited from class javax.swing.JComponent

listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Constructors

Constructor	Description
World()	Constructor that takes no arguments
World(boolean visibleFlag)	Constructor that takes a boolean to say if this world should be visible or not
World(int w, int h)	Constructor that takes a width and height for this world

Method Summary

Modifier and Type	Method	Description
void	addModel(Object model)	Method to add a model to this model displayer
void	clearBackground()	Method to clear the background picture
boolean	containsTurtle(Turtle turtle)	Method to check if this world contains the passed turtle
Graphics	getGraphics()	Method to get the graphics context for drawing on
int	getHeight()	Method to get the height in pixels
Turtle	getLastTurtle()	Metod to get the last turtle in this world
Picture	getPicture()	Method to get the background picture
Iterator	getTurtleIterator()	Method to get an iterator on the list of turtles
List	getTurtleList()	Method to get the list of turtles in the world
int	getWidth()	Method to get the width in pixels
void	modelChanged()	Method that allows the model to notify the display
void	paintComponent(Graphics g)	Method to paint this component
void	remove(Object model)	Method to remove the passed object from the world
void	setAutoRepaint(boolean value)	Method to set the automatically repaint flag
void	setPicture(Picture pict)	Method to set the background picture
void	setVisible(boolean value)	Method to set the visibility of the world
String	toString()	Method that returns information about this world in the form of a string

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUI, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, unregisterKeyboardAction, update, updateUI

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAccessibleContext, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Details

World

public World()

Constructor that takes no arguments

World

public World(boolean visibleFlag)

Constructor that takes a boolean to say if this world should be visible or not

Parameters:

visibleFlag - if true will be visible else if false will not be visible

World

public World(int w,
 int h)

Constructor that takes a width and height for this world

Parameters:

w - the width for the world

h - the height for the world

Method Details

getGraphics

public Graphics getGraphics()

Method to get the graphics context for drawing on

Specified by:

getGraphics in interface ModelDisplay

Overrides:

getGraphics in class JComponent

Returns:

the graphics context of the background picture

clearBackground

public void clearBackground()

Method to clear the background picture

Specified by:

clearBackground in interface ModelDisplay

getPicture

public Picture getPicture()

Method to get the background picture

Returns:

the background picture

setPicture

public void setPicture(Picture pict)

Method to set the background picture

Parameters:

pict - the background picture to use

paintComponent

public void paintComponent(Graphics g)

Method to paint this component

Overrides:

paintComponent in class JComponent

Parameters:

g - the graphics context

getLastTurtle

public Turtle getLastTurtle()

Metod to get the last turtle in this world

Returns:

the last turtle added to this world

addModel

public void addModel(Object model)

Method to add a model to this model displayer

Specified by:

addModel in interface ModelDisplay

Parameters:

model - the model object to add

containsTurtle

public boolean containsTurtle(Turtle turtle)

Method to check if this world contains the passed turtle

Returns:

true if there else false

remove

public void remove(Object model)

Method to remove the passed object from the world

Specified by:

remove in interface ModelDisplay

Parameters:

model - the model object to remove

getWidth

public int getWidth()

Method to get the width in pixels

Specified by:

getWidth in interface ModelDisplay

Overrides:

getWidth in class JComponent

Returns:

the width in pixels

getHeight

public int getHeight()

Method to get the height in pixels

Specified by:

getHeight in interface ModelDisplay

Overrides:

getHeight in class JComponent

Returns:

the height in pixels

modelChanged

public void modelChanged()

Method that allows the model to notify the display

Specified by:

modelChanged in interface ModelDisplay

setAutoRepaint

public void setAutoRepaint(boolean value)

Method to set the automatically repaint flag

Parameters:

value - if true will auto repaint

setVisible

public void setVisible(boolean value)

Method to set the visibility of the world

Overrides:

setVisible in class JComponent

Parameters:

value - a boolean value to say if should show or hide

getTurtleList

public List getTurtleList()

Method to get the list of turtles in the world

Returns:

a list of turtles in the world

getTurtleIterator

public Iterator getTurtleIterator()

Method to get an iterator on the list of turtles

Returns:

an iterator for the list of turtles

toString

public String toString()

Method that returns information about this world in the form of a string

Overrides:

toString in class Component

Returns:

a string of information about this world