support.convexhull
Class HullCanvas

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JPanel
                  support.convexhull.HullCanvas

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, ConvexHullConstants

public class HullCanvas
extends JPanel
implements ConvexHullConstants

This class manages all of the graphical aspects of the GUI. It contains a double buffered drawing area, and can also manage all of the points, edges.

See Also:

Serialized Form

Nested Class Summary

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

JPanel.AccessibleJPanel

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

protected Image	_background
protected Vector<HelperHullPoint>	_points

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

HullCanvas(HullHelper helper)
Create a new HullCanvas.

Method Summary

void	addVertex(HelperHullPoint vertex) Add an edge to the graph.
void	clear() This removes all vertices and edges from the graph.
void	connectEndPoints(HullPoint start, HullPoint end, Graphics graphics) Draws the edge between two endpoints if they differ from top hull to bottom hull
void	drawBottomEdge(HullPoint start, HullPoint end, Graphics graphics) Draws the edge between two given points in the bottom of the Hull
void	drawTopEdge(HullPoint start, HullPoint end, Graphics graphics) Draws the edge between two given points in the top of the Hull
Vector	getVertices() Returns the vector storing all the points, including ones inside the hull.
void	paint(Graphics graphics) Uses double buffering to redraw all the hull points and edges over the background.

Methods inherited from class javax.swing.JPanel

getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI

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, 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, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, 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

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, 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, 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

Field Detail

_points

protected Vector<HelperHullPoint> _points

_background

protected Image _background

Constructor Detail

HullCanvas

public HullCanvas(HullHelper helper)

Create a new HullCanvas. Sets the random background

Parameters:

helper - The HullHelper that is the parent of this HullCanvas.

Method Detail

addVertex

public void addVertex(HelperHullPoint vertex)

Add an edge to the graph. This repaints the vertex. It also checks to make sure that the point isn't a duplicate. If it is, the point is not added.

Parameters:

vertex - The vertex to add.

clear

public void clear()

This removes all vertices and edges from the graph. It repaints the whole canvas.

paint

public void paint(Graphics graphics)

Uses double buffering to redraw all the hull points and edges over the background. Recolors all the points to match their new on/off hull status. Also does error checking of student code.

Overrides:

paint in class JComponent

Parameters:

graphics - Where to display the final drawn screen to

drawBottomEdge

public void drawBottomEdge(HullPoint start,
                           HullPoint end,
                           Graphics graphics)

Draws the edge between two given points in the bottom of the Hull

Parameters:

start - First point to connect

end - Second point to connect

graphics - Graphics in which to draw

drawTopEdge

public void drawTopEdge(HullPoint start,
                        HullPoint end,
                        Graphics graphics)

Draws the edge between two given points in the top of the Hull

Parameters:

start - First point to connect

end - Second point to connect

graphics - Graphics in which to draw

connectEndPoints

public void connectEndPoints(HullPoint start,
                             HullPoint end,
                             Graphics graphics)

Draws the edge between two endpoints if they differ from top hull to bottom hull

Parameters:

start - First point to connect

end - Second point to connect

graphics - Graphics in which to draw

getVertices

public Vector getVertices()

Returns the vector storing all the points, including ones inside the hull.