slogo.turtle

Class TurtleField

java.lang.Object

java.awt.Component

java.awt.Container

java.awt.Window

java.awt.Frame

javax.swing.JFrame

slogo.turtle.TurtleField

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, javax.swing.RootPaneContainer, javax.swing.WindowConstants, TurtleListener

public class TurtleField
extends javax.swing.JFrame
implements TurtleListener

Rudimentary view showing turtles and MVC. Illustrates simple Model/View decomposition, not meant as an example of what a real Slogo view would be. In this implementation the View creates the Model/JTurtle object.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	TurtleField.BufferedPanel Overkill with double buffering on by default, but shows how to do it.
class	TurtleField.DrawingPanel

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

javax.swing.JFrame.AccessibleJFrame

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

java.awt.Frame.AccessibleAWTFrame

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

java.awt.Window.AccessibleAWTWindow, java.awt.Window.Type

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

java.awt.Container.AccessibleAWTContainer

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

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field and Description
(package private) javax.swing.JColorChooser	cc
private WorkspaceContext	context
(package private) javax.swing.JFileChooser	fc
private SLogoInterpreter	interpreter
private javax.swing.JTextField	myAngle
private TurtleField.DrawingPanel	myDisplay
private java.awt.Font	myFont
private javax.swing.JComboBox<java.lang.String>	myStepSize
private JTurtle	myTurtle
private javax.swing.JTextField	myXPoint
private javax.swing.JTextField	myYPoint
private static long	serialVersionUID
private javax.swing.JTextArea	workSpace

Fields inherited from class javax.swing.JFrame

accessibleContext, EXIT_ON_CLOSE, rootPane, rootPaneCheckingEnabled

Fields inherited from class java.awt.Frame

CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR, HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ, MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL, NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR, TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface javax.swing.WindowConstants

DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, HIDE_ON_CLOSE

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

Constructors

Constructor and Description
TurtleField() Creates a view of the turtle, using the default turtle representation
TurtleField(java.lang.String turtleImgLocName) Creates a view of the turtle, given by the name of the turtle image

Method Summary

Modifier and Type	Method and Description
void	doSteps() Make the turtle take some steps.
private java.lang.String	getInput(javax.swing.JTextArea ta) gets text input from the workSpace
int	getMoveSize() Returns step size as currently selected.
private void	init()
static void	main(java.lang.String[] args)
private void	makeDashBoard(javax.swing.JPanel panel) Where turtle info is displayed
java.awt.Image	makeImage(java.lang.String imageFileName)
private void	makeSlider(javax.swing.JPanel panel) make a slider to set the turtle's heading
private javax.swing.JTextArea	makeTextArea() make a scroll pane for the text input into the workSpace
private javax.swing.JTextField	makeTextField()
private void	parse(java.lang.String text) Uses a SLogoInterpreter to interpret the given text in a context
void	processTurtle(JTurtle turtle) Process a (changed) turtle, display properties and redraw.
void	setTurtle(JTurtle turtle)
void	showAngle(int angle) Display (Turtle's) angle
void	showPoint(java.awt.geom.Point2D d) display Turtle's point information

Methods inherited from class javax.swing.JFrame

addImpl, createRootPane, frameInit, getAccessibleContext, getContentPane, getDefaultCloseOperation, getGlassPane, getGraphics, getJMenuBar, getLayeredPane, getRootPane, getTransferHandler, isDefaultLookAndFeelDecorated, isRootPaneCheckingEnabled, paramString, processWindowEvent, remove, repaint, setContentPane, setDefaultCloseOperation, setDefaultLookAndFeelDecorated, setGlassPane, setIconImage, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, setTransferHandler, update

Methods inherited from class java.awt.Frame

addNotify, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, remove, removeNotify, setBackground, setCursor, setExtendedState, setMaximizedBounds, setMenuBar, setOpacity, setResizable, setShape, setState, setTitle, setUndecorated

Methods inherited from class java.awt.Window

addPropertyChangeListener, addPropertyChangeListener, addWindowFocusListener, addWindowListener, addWindowStateListener, applyResourceBundle, applyResourceBundle, createBufferStrategy, createBufferStrategy, dispose, getBackground, getBufferStrategy, getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner, getFocusTraversalKeys, getIconImages, getInputContext, getListeners, getLocale, getModalExclusionType, getMostRecentFocusOwner, getOpacity, getOwnedWindows, getOwner, getOwnerlessWindows, getShape, getToolkit, getType, getWarningString, getWindowFocusListeners, getWindowListeners, getWindows, getWindowStateListeners, hide, isActive, isAlwaysOnTop, isAlwaysOnTopSupported, isAutoRequestFocus, isFocusableWindow, isFocusCycleRoot, isFocused, isLocationByPlatform, isOpaque, isShowing, isValidateRoot, pack, paint, postEvent, processEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, reshape, setAlwaysOnTop, setAutoRequestFocus, setBounds, setBounds, setCursor, setFocusableWindowState, setFocusCycleRoot, setIconImages, setLocation, setLocation, setLocationByPlatform, setLocationRelativeTo, setMinimumSize, setModalExclusionType, setSize, setSize, setType, setVisible, show, toBack, toFront

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, 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, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resize, resize, revalidate, setComponentOrientation, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setMaximumSize, setName, setPreferredSize, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.awt.MenuContainer

getFont, postEvent

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

myDisplay

private TurtleField.DrawingPanel myDisplay

myXPoint

private javax.swing.JTextField myXPoint

myYPoint

private javax.swing.JTextField myYPoint

myAngle

private javax.swing.JTextField myAngle

myStepSize

private javax.swing.JComboBox<java.lang.String> myStepSize

myFont

private java.awt.Font myFont

workSpace

private javax.swing.JTextArea workSpace

interpreter

private SLogoInterpreter interpreter

context

private WorkspaceContext context

fc

final javax.swing.JFileChooser fc

cc

final javax.swing.JColorChooser cc

myTurtle

private JTurtle myTurtle

Constructor Detail

TurtleField

public TurtleField(java.lang.String turtleImgLocName)

Creates a view of the turtle, given by the name of the turtle image

Parameters:

turtleImgName - - the location of the turtle image file

TurtleField

public TurtleField()

Creates a view of the turtle, using the default turtle representation

Method Detail

main

public static void main(java.lang.String[] args)

init

private void init()

setTurtle

public void setTurtle(JTurtle turtle)

makeSlider

private void makeSlider(javax.swing.JPanel panel)

make a slider to set the turtle's heading

makeTextField

private javax.swing.JTextField makeTextField()

makeTextArea

private javax.swing.JTextArea makeTextArea()

make a scroll pane for the text input into the workSpace

Returns:

JScrollPane

getInput

private java.lang.String getInput(javax.swing.JTextArea ta)

gets text input from the workSpace

Returns:

string

parse

private void parse(java.lang.String text)

Uses a SLogoInterpreter to interpret the given text in a context

Parameters:

text -

makeDashBoard

private void makeDashBoard(javax.swing.JPanel panel)

Where turtle info is displayed

processTurtle

public void processTurtle(JTurtle turtle)

Process a (changed) turtle, display properties and redraw.

Specified by:

processTurtle in interface TurtleListener

Parameters:

turtle - is the turtle being displayed

showPoint

public void showPoint(java.awt.geom.Point2D d)

display Turtle's point information

showAngle

public void showAngle(int angle)

Display (Turtle's) angle

Parameters:

angle - is the angle displayed

doSteps

public void doSteps()

Make the turtle take some steps.

getMoveSize

public int getMoveSize()

Returns step size as currently selected.

Returns:

the current step size

makeImage

public java.awt.Image makeImage(java.lang.String imageFileName)
                         throws java.io.IOException

Parameters:

imageFileName -

Returns:

the image at that filename

Throws:

java.io.IOException - if there is an error reading in the file