ca.bc.webarts.widgets
Class ImageCanvas

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Canvas
              |
              +--ca.bc.webarts.widgets.ImageCanvas
All Implemented Interfaces:
javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class ImageCanvas
extends java.awt.Canvas

A simple canvas for painting an Image in its center.

Author:
unknown
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  java.awt.Image image_
          The Image to Paint.
private  int imageHeight
          Class holder for the image height.
private  int imageWidth
          Class holder for the image width.
 
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
ImageCanvas(java.awt.Image image)
          Constructor for the ImageCanvas object.
 
Method Summary
 java.awt.Dimension getPreferredSize()
          Gets the PreferredSize attribute of the ImageCanvas object.
 void paint(java.awt.Graphics g)
          Over rides the Paint method to paint our image
 void update(java.awt.Graphics g)
          Simply calls paint(g).
 
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, getHeight, getInputContext, getInputMethodRequests, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen_NoTreeLock, getLocationOnScreen, getMaximumSize, getMinimumSize, getName, getNativeContainer, getParent_NoClientCode, getParent, getPeer, getSize, getSize, getToolkit, getToolkitImpl, getTreeLock, getWidth, 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, 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

image_

private java.awt.Image image_
The Image to Paint.
Since:
 

imageHeight

private int imageHeight
Class holder for the image height.
Since:
 

imageWidth

private int imageWidth
Class holder for the image width.
Since:
 
Constructor Detail

ImageCanvas

public ImageCanvas(java.awt.Image image)
Constructor for the ImageCanvas object.
Parameters:
image - The Image to paint.
Since:
 
Method Detail

getPreferredSize

public java.awt.Dimension getPreferredSize()
Gets the PreferredSize attribute of the ImageCanvas object.
Overrides:
getPreferredSize in class java.awt.Component
Returns:
The PreferredSize value
Since:
 

paint

public void paint(java.awt.Graphics g)
Over rides the Paint method to paint our image
Overrides:
paint in class java.awt.Canvas
Parameters:
g - Description of Parameter
Since:
 

update

public void update(java.awt.Graphics g)
Simply calls paint(g).
Overrides:
update in class java.awt.Component
Parameters:
g - The graphics object to paint into.
Since: