com.pearsoneduc.ip.gui
Class ImageView

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--javax.swing.JLabel
                          |
                          +--com.pearsoneduc.ip.gui.ImageView
Direct Known Subclasses:
ViewWithROI

public class ImageView
extends javax.swing.JLabel
implements javax.swing.Scrollable

A component that displays a BufferedImage.

ImageView is a version of JLabel that can display a BufferedImage object, rather than an ImageIcon. It implements the Scrollable interface, and will therefore behave sensibly when embedded in a JScrollPane. An image processing operation can be specified that will be applied to the image prior to display; if null is specified, then no operation will be performed.

Version:
1.1 [1999/07/08]
Author:
Nick Efford
See Also:
JLabel, Scrollable, BufferedImage, BufferedImageOp, Serialized Form

Inner classes inherited from class javax.swing.JLabel
javax.swing.JLabel.AccessibleJLabel
 
Inner classes inherited from class javax.swing.JComponent
javax.swing.JComponent.AccessibleJComponent
 
Fields inherited from class javax.swing.JLabel
labelFor
 
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
 
Constructor Summary
ImageView(java.awt.image.BufferedImage img)
          Constructs an ImageView to display the specified BufferedImage.
ImageView(java.awt.image.BufferedImage img, java.awt.image.BufferedImageOp op)
          Constructs an ImageView to display a processed BufferedImage.
 
Method Summary
 java.awt.Dimension getPreferredScrollableViewportSize()
           
 int getScrollableBlockIncrement(java.awt.Rectangle visibleRect, int orientation, int direction)
           
 boolean getScrollableTracksViewportHeight()
           
 boolean getScrollableTracksViewportWidth()
           
 int getScrollableUnitIncrement(java.awt.Rectangle visibleRect, int orientation, int direction)
           
 void paintComponent(java.awt.Graphics g)
          Displays the image associated with an ImageView object.
 void setImage(java.awt.image.BufferedImage img)
          Changes the image being displayed.
 void setOperation(java.awt.image.BufferedImageOp op)
          Changes the operation applied to an image.
 void setViewSize(java.awt.Dimension newViewSize)
          Changes the viewport size.
 
Methods inherited from class javax.swing.JLabel
checkHorizontalKey, checkVerticalKey, getAccessibleContext, getDisabledIcon, getDisplayedMnemonic, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getLabelFor, getText, getUI, getUIClassID, getVerticalAlignment, getVerticalTextPosition, paramString, setDisabledIcon, setDisplayedMnemonic, setDisplayedMnemonic, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabelFor, setText, setUI, setVerticalAlignment, setVerticalTextPosition, updateUI
 
Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getAlignmentX, getAlignmentY, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getGraphics, getHeight, getInsets, getInsets, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getVisibleRect, getWidth, getX, getY, grabFocus, hasFocus, isDoubleBuffered, isFocusCycleRoot, isFocusTraversable, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, processComponentKeyEvent, processFocusEvent, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDoubleBuffered, setEnabled, setFont, setForeground, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setUI, setVisible, unregisterKeyboardAction, update
 
Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getLayout, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setLayout, validate, validateTree
 
Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hide, imageUpdate, inside, isDisplayable, isEnabled, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processInputMethodEvent, processMouseEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ImageView

public ImageView(java.awt.image.BufferedImage img)
Constructs an ImageView to display the specified BufferedImage.
Parameters:
img - image to be displayed

ImageView

public ImageView(java.awt.image.BufferedImage img,
                 java.awt.image.BufferedImageOp op)
Constructs an ImageView to display a processed BufferedImage.
Parameters:
img - image to be displayed
op - operation to be applied before display
Method Detail

setImage

public void setImage(java.awt.image.BufferedImage img)
Changes the image being displayed.
Parameters:
img - new image

setOperation

public void setOperation(java.awt.image.BufferedImageOp op)
Changes the operation applied to an image.
Parameters:
op - image processing operation

setViewSize

public void setViewSize(java.awt.Dimension newViewSize)
Changes the viewport size. This has an effect only when the ImageView object is embedded in a JScrollPane.
Parameters:
newViewSize - Dimension object defining the new viewport size

paintComponent

public void paintComponent(java.awt.Graphics g)
Displays the image associated with an ImageView object.
Parameters:
g - graphics context for the ImageView object
Overrides:
paintComponent in class javax.swing.JComponent

getPreferredScrollableViewportSize

public java.awt.Dimension getPreferredScrollableViewportSize()
Specified by:
getPreferredScrollableViewportSize in interface javax.swing.Scrollable

getScrollableUnitIncrement

public int getScrollableUnitIncrement(java.awt.Rectangle visibleRect,
                                      int orientation,
                                      int direction)
Specified by:
getScrollableUnitIncrement in interface javax.swing.Scrollable

getScrollableBlockIncrement

public int getScrollableBlockIncrement(java.awt.Rectangle visibleRect,
                                       int orientation,
                                       int direction)
Specified by:
getScrollableBlockIncrement in interface javax.swing.Scrollable

getScrollableTracksViewportWidth

public boolean getScrollableTracksViewportWidth()
Specified by:
getScrollableTracksViewportWidth in interface javax.swing.Scrollable

getScrollableTracksViewportHeight

public boolean getScrollableTracksViewportHeight()
Specified by:
getScrollableTracksViewportHeight in interface javax.swing.Scrollable