support.convexhull
Class HelperHullPoint

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              support.convexhull.HullPoint
                  support.convexhull.HelperHullPoint

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, ConvexHullConstants

public class HelperHullPoint
extends HullPoint
implements ConvexHullConstants

A HelperHullPoint extends the basic HullPoint by adding functionality needed to work correctly in the HullHelper. Mainly it deals with graphical representation and storing additional state information.

A HelperHullPoint has two different attributes, on/off hull, and there is a color change associated with each state. There is a third state, but this state is not encountered unless an error occurs. That indicates that the insertion of this point caused an exception.

These should only be created by the HullHelper.

See Also:

HullHelper, 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.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields inherited from class javax.swing.JComponent

accessibleContext, 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

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface support.convexhull.ConvexHullConstants

BLUE_POINT_IMAGE, BOTTOM_COLOR, c, CANVAS_HEIGHT, CANVAS_WIDTH, ERROR_COLOR, FIGHTER_MODEL, FRAME_HEIGHT, FRAME_WIDTH, FRAME_X, FRAME_Y, HULL_CONNECT_COLOR, HULL_POINT_RADIUS, IMAGE_PATH, MODEL_PATH, OFF_HULL, ON_HULL, PURPLE_POINT_IMAGE, RED_POINT_IMAGE, ROBOT_MODEL, TOP_COLOR

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

HelperHullPoint(HullCanvas c)
Constructs a new hull point.

Method Summary

Rectangle	getBounds() Gets the bounds of this component.
boolean	isError() Identifies if this point was the last point inserted before an exception was thrown.
boolean	isOnHull() Gets the state of the on/off hull attributed
protected static void	loadImages()
void	paint(Graphics graphics) Paints this point to the specified graphics object.
void	setError(boolean state) Flags that this point caused an error.
void	setOnHull(boolean state) Sets the state of the on/off hull attribute.
protected void	updateColor() This updates the color of the current point.

Methods inherited from class support.convexhull.HullPoint

getX, getY, setX, setY

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, 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, setVisible, 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, transferFocusBackward, 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, getBackground, 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, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, 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, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Detail

HelperHullPoint

public HelperHullPoint(HullCanvas c)

Constructs a new hull point. However, it does not place the point on the screen. The HullHelper should call setLocation(int, int) after adding the point to the screen.

Parameters:

c - HullCanvas that contains this point

Method Detail

loadImages

protected static void loadImages()

updateColor

protected void updateColor()

This updates the color of the current point. It is called whenever a function is called that could change the color of the point. It does not redraw the point.

getBounds

public Rectangle getBounds()

Gets the bounds of this component.

Overrides:

getBounds in class Component

Returns:

A Rectangle that contains the bounds of this point.

paint

public void paint(Graphics graphics)

Paints this point to the specified graphics object. Assumes that the point (0,0) refers to the upper left corner of the HullCanvas.

Overrides:

paint in class JComponent

Parameters:

graphics - The Graphics object to use when painting this HullPoint

setOnHull

public void setOnHull(boolean state)

Sets the state of the on/off hull attribute.

Parameters:

state - the new state of the on/off hull attribute

setError

public void setError(boolean state)

Flags that this point caused an error.

Parameters:

state - the new state of the error attribute

isOnHull

public boolean isOnHull()

Gets the state of the on/off hull attributed

Returns:

true if the point is on the hull, false otherwise.

isError

public boolean isError()

Identifies if this point was the last point inserted before an exception was thrown.

Returns:

true if point caused an error, false otherwise.