mit.ai.techniques
Class BinaryDrawingCanvas

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Canvas
              |
              +--mit.ai.techniques.BinaryDrawingCanvas

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class BinaryDrawingCanvas

extends java.awt.Canvas

This canvas allows the user to draw big, blocky, binary images with the mouse. It can export its data in the form of a binary array.

See Also:

Serialized Form

Inner classes inherited from class java.awt.Canvas

java.awt.Canvas.AccessibleAWTCanvas

Inner classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.AWTTreeLock

Field Summary

private boolean	currentDrawSetting True -> drawing black pixels, false -> drawing white pixels.
private static int	PIX_MULT Pixel size.
private boolean[][]	pixels Pixel state storage.

Fields inherited from class java.awt.Canvas

base, nameCounter, serialVersionUID

Fields inherited from class java.awt.Component

accessibleContext, actionListenerK, adjustmentListenerK, appContext, background, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, changeSupport, componentListener, componentListenerK, componentOrientation, componentSerializedDataVersion, containerListenerK, cursor, dbg, dropTarget, enabled, eventMask, focusListener, focusListenerK, font, foreground, graphicsConfig, hasFocus, height, hierarchyBoundsListener, hierarchyBoundsListenerK, hierarchyListener, hierarchyListenerK, incRate, inputMethodListener, inputMethodListenerK, isInc, isPacked, itemListenerK, keyListener, keyListenerK, LEFT_ALIGNMENT, locale, LOCK, metrics, minSize, mouseListener, mouseListenerK, mouseMotionListener, mouseMotionListenerK, name, nameExplicitlySet, newEventsOnly, ownedWindowK, parent, peer, peerFont, popups, prefSize, privateKey, RIGHT_ALIGNMENT, textListenerK, TOP_ALIGNMENT, valid, visible, width, windowClosingException, windowListenerK, x, y

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

BinaryDrawingCanvas()
Construct a canvas, default size is 15 x 15 big, blocky pixels.

BinaryDrawingCanvas(boolean[][] initPixels)
Constrct a canvas that displays the values in initPixels (true -> black, false -> white).

Method Summary

void	clearCanvas() Clear the canvas (and associated data structures).
void	drawPixel(int x, int y, boolean start) Accepts real-screen pixels, and adds their big, blocky superset pixels to the screen and internal data structure.
int	getBigPixelHeight() Return canvas height in big pixels.
int	getBigPixelWidth() Return canvas width in big pixels.
boolean[][]	getBinaryData() Get the binary data.
int	getHeight() Return canvas height.
int	getWidth() Return canvas width.
void	paint(java.awt.Graphics g) Paint the screen with the big, blocky pixels demanded by the current set of pixels we have drawn over.
void	randomize(double blackPercentage) Randomize the canvas value to produce a given percentage of black pixels.
void	setSize(int xPixels, int yPixels) Set the size in big, blocky pixels.
void	update(java.awt.Graphics g) Usual lazy update routine.

Methods inherited from class java.awt.Canvas

, addNotify, constructComponentName, getAccessibleContext, postsOldMouseEvents

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, areInputMethodsEnabled, bounds, checkGD, checkImage, checkImage, checkWindowClosingException, coalesceEvents, contains, contains, createChildHierarchyEvents, createHierarchyEvents, createImage, createImage, deliverEvent, disable, disableEvents, dispatchEvent, dispatchEventImpl, doLayout, enable, enable, enableEvents, enableInputMethods, eventEnabled, firePropertyChange, getAccessibleIndexInParent, getAccessibleStateSet, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentOrientation, getCursor, getDropTarget, getFont_NoClientCode, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getInputContext, getInputMethodRequests, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen_NoTreeLock, getLocationOnScreen, getMaximumSize, getMinimumSize, getName, getNativeContainer, getParent_NoClientCode, getParent, getPeer, getPreferredSize, getSize, getSize, getToolkit, getToolkitImpl, getTreeLock, getWindowForObject, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, initIDs, inside, invalidate, isDisplayable, isDoubleBuffered, isEnabled, isEnabledImpl, isFocusTraversable, isLightweight, isOpaque, isRecursivelyVisible, isShowing, isValid, isVisible, keyDown, keyUp, layout, lightweightPaint, lightweightPrint, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, numListening, paintAll, paintHeavyweightComponents, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, printHeavyweightComponents, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, readObject, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, resetGC, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFont, setForeground, setLocale, setLocation, setLocation, setName, setSize, setVisible, show, show, size, toString, transferFocus, validate, writeObject

Methods inherited from class java.lang.Object

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

Field Detail

PIX_MULT

private static final int PIX_MULT

Pixel size.

pixels

private boolean[][] pixels

Pixel state storage.

currentDrawSetting

private boolean currentDrawSetting

True -> drawing black pixels, false -> drawing white pixels.

Constructor Detail

BinaryDrawingCanvas

public BinaryDrawingCanvas()

Construct a canvas, default size is 15 x 15 big, blocky pixels.

BinaryDrawingCanvas

public BinaryDrawingCanvas(boolean[][] initPixels)

Constrct a canvas that displays the values in initPixels (true -> black, false -> white).

Method Detail

getBigPixelWidth

public int getBigPixelWidth()

Return canvas width in big pixels.

getBigPixelHeight

public int getBigPixelHeight()

Return canvas height in big pixels.

getWidth

public int getWidth()

Return canvas width.

Overrides:

getWidth in class java.awt.Component

getHeight

public int getHeight()

Return canvas height.

Overrides:

getHeight in class java.awt.Component

clearCanvas

public void clearCanvas()

Clear the canvas (and associated data structures).

randomize

public void randomize(double blackPercentage)

Randomize the canvas value to produce a given percentage of black pixels.

getBinaryData

public boolean[][] getBinaryData()

Get the binary data. Note that it is indexed in (x,y) order, so we need to transpose so the user (me) won't be too confused.

setSize

public void setSize(int xPixels,
                    int yPixels)

Set the size in big, blocky pixels.

Overrides:

setSize in class java.awt.Component

update

public void update(java.awt.Graphics g)

Usual lazy update routine.

Overrides:

update in class java.awt.Component

paint

public void paint(java.awt.Graphics g)

Paint the screen with the big, blocky pixels demanded by the current set of pixels we have drawn over.

Overrides:

paint in class java.awt.Canvas

drawPixel

public void drawPixel(int x,
                      int y,
                      boolean start)

Accepts real-screen pixels, and adds their big, blocky superset pixels to the screen and internal data structure.