com.sun.jimi.core.component
Class CroppedPreviewCanvas

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Canvas
              |
              +--com.sun.jimi.core.component.CroppedPreviewCanvas
public class CroppedPreviewCanvas
extends java.awt.Canvas

A canvas for viewing large images to be used in conjuction with a scrolling container. Initially, the region of the image which is viewable on screen is rendered quickly for fast display, and then the rest of the image is decoded asynchronously.

See Also:
Serialized Form

Field Summary
protected  java.awt.Image completeImage
           
protected  int cropHeight
           
protected  int cropWidth
           
protected  java.awt.Image previewImage
           
protected  JimiRasterImage rasterImage
           
 
Fields inherited from class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
 
Constructor Summary
CroppedPreviewCanvas()
           
CroppedPreviewCanvas(int cropWidth, int cropHeight)
           
CroppedPreviewCanvas(int cropWidth, int cropHeight, JimiRasterImage image)
           
 
Method Summary
protected  void createCompleteImage()
           
protected  void createPreviewImage()
           
 java.awt.Dimension getPreferredSize()
           
 void paint(java.awt.Graphics g)
           
 void setCropDimensions(int cropWidth, int cropHeight)
           
 void setImage(JimiRasterImage image)
           
 
Methods inherited from class java.awt.Canvas
addNotify
 
Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getName, getParent, getPeer, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFont, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, update, validate
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

cropWidth

protected int cropWidth

cropHeight

protected int cropHeight

rasterImage

protected JimiRasterImage rasterImage

previewImage

protected java.awt.Image previewImage

completeImage

protected java.awt.Image completeImage
Constructor Detail

CroppedPreviewCanvas

public CroppedPreviewCanvas()

CroppedPreviewCanvas

public CroppedPreviewCanvas(int cropWidth,
                            int cropHeight)

CroppedPreviewCanvas

public CroppedPreviewCanvas(int cropWidth,
                            int cropHeight,
                            JimiRasterImage image)
Method Detail

getPreferredSize

public java.awt.Dimension getPreferredSize()
Overrides:
getPreferredSize in class java.awt.Component

setImage

public void setImage(JimiRasterImage image)

setCropDimensions

public void setCropDimensions(int cropWidth,
                              int cropHeight)

paint

public void paint(java.awt.Graphics g)
Overrides:
paint in class java.awt.Canvas

createPreviewImage

protected void createPreviewImage()

createCompleteImage

protected void createCompleteImage()