com.vistech.imageviewer
Class CompositeCanvas2D

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--com.vistech.imageviewer.ImageCanvas
                          |
                          +--com.vistech.imageviewer.ImageCanvas2D
                                |
                                +--com.vistech.imageviewer.CompositeCanvas2D

All Implemented Interfaces:

DrawingCanvas, ImageDisplay, ImageManipulator, java.awt.image.ImageObserver, ImagePrint, java.awt.MenuContainer, java.awt.print.Printable, java.io.Serializable

public class CompositeCanvas2D

extends ImageCanvas2D

implements DrawingCanvas

A canvas class for drawing graphics over images.

Version:

1.0 4 April 2000

Author:

Larry Rodrigues

See Also:

Serialized Form

Inner classes inherited from class javax.swing.JComponent

javax.swing.JComponent.AccessibleJComponent

Inner classes inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Inner classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent

Field Summary

protected java.awt.Shape	currentShape
protected int	imageHeight
protected int	imageWidth
protected int	offsetX
protected int	offsetY
protected int	viewerHt
protected int	viewerWid

Fields inherited from class com.vistech.imageviewer.ImageCanvas2D

atx, dispModeAtx, flipAtx, interpolationType, magCenterX, magCenterY, magFactor, magOn, panOffset, rotateOn, rotationAngle, rotationCenterX, rotationCenterY, shearFactor, shearOn, shearX, shearY, zoomOffset

Fields inherited from class com.vistech.imageviewer.ImageCanvas

bufferedImage, clipShape, dispGc, displayImage, displayMode, flipMode, height, imageType, invertOn, offScrGc, offScrImage, originalImageType, paintFlag, PRINT_SIZE_ACTUAL, PRINT_SIZE_PAGE, printLoc, printMode, printSize, width

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 com.vistech.imageviewer.ImageDisplay

TYPE_AWT_IMAGE, TYPE_BUFFERED_IMAGE

Fields inherited from interface java.awt.print.Printable

NO_SUCH_PAGE, PAGE_EXISTS

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

CompositeCanvas2D()

CompositeCanvas2D(java.awt.image.BufferedImage img, int wid, int ht)

Method Summary

void	drawShape(java.awt.Shape s) Draws a shape on the canvas.
void	eraseShapes() Erases shapes drawn on the canvas.
void	fillShape(java.awt.Shape s) Fills the specified shape.
java.awt.geom.AffineTransform	getAllAtx() Gets the current transformation that includes the transformation computed for setting the display and flip modes.
java.awt.image.BufferedImage	getDisplayedImage() Returns the image displayed on the canvas.
java.awt.Graphics2D	getDisplayedImageGC() Use this method to check out the graphics context.
java.awt.geom.AffineTransform	getDispModeAtx() Gets the transformation computed for setting the display and flip modes.
boolean	paintImage(java.awt.image.BufferedImage img) Paints the image with the current display and flip modes.
void	reset() Resets the canvas

Methods inherited from class com.vistech.imageviewer.ImageCanvas2D

applyTransform, applyTransform, createFlipTransform, doDisplayModeAndFlip, getInterpolationType, getMagFactor, getMagOn, getPanOffset, getRotationAngle, getShearFactor, getShearFactorX, getShearFactorY, getTransform, init, main, resetManipulation, setInterpolationType, setMagFactor, setMagOn, setPanOffset, setRotationAngle, setShearFactor, setTransform

Methods inherited from class com.vistech.imageviewer.ImageCanvas

addImageSentListener, clearImageCanvas, convertToAWTImage, convertToBufferedImage, createDisplayImage, doFlip, doFlip, draw, drawingDim, fireImageSentEvents, getAWTImage, getBufferedImage, getDisplayMode, getFlipMode, getImageSize, getImageType, getInvert, getOffScreenImage, getPreferredSize, getPrintLocation, getPrintSize, imageUpdate, invert, paintComponent, paintImage, print, printImage, redraw, removeImageSentListener, setAWTImage, setBufferedImage, setClip, setDisplayImage, setDisplayMode, setFlipMode, setImageType, setInvert, setOffScreenImage, setOffScrGc, setPrintLocation, setPrintSize

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getGraphics, getHeight, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getUIClassID, getVerifyInputWhenFocusTarget, getVisibleRect, getWidth, getX, getY, grabFocus, hasFocus, hide, isDoubleBuffered, isFocusCycleRoot, isFocusTraversable, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processFocusEvent, processKeyBinding, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDoubleBuffered, setEnabled, setFont, setForeground, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI

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, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setLayout, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, 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, processComponentEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, 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

Methods inherited from interface com.vistech.imageviewer.DrawingCanvas

addMouseListener, addMouseMotionListener, getTransform, removeMouseListener, removeMouseMotionListener, repaint, setTransform

Methods inherited from interface com.vistech.imageviewer.ImageDisplay

addMouseListener, addMouseMotionListener, addPropertyChangeListener, addVetoableChangeListener, draw, getAWTImage, getBufferedImage, getDisplayMode, getFlipMode, getImageSize, getImageType, getInvert, getOffScreenImage, paintImage, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removeVetoableChangeListener, setAWTImage, setBufferedImage, setClip, setCursor, setDisplayImage, setDisplayMode, setFlipMode, setImageType, setInvert, setOffScreenImage

Field Detail

imageWidth

protected int imageWidth

imageHeight

protected int imageHeight

viewerWid

protected int viewerWid

viewerHt

protected int viewerHt

offsetX

protected int offsetX

offsetY

protected int offsetY

currentShape

protected java.awt.Shape currentShape

Constructor Detail

CompositeCanvas2D

public CompositeCanvas2D()

CompositeCanvas2D

public CompositeCanvas2D(java.awt.image.BufferedImage img,
                         int wid,
                         int ht)

Parameters:

img - the image over which the graphics are to be drawn.

wid - the width of the canvas.

ht - the height of the canvas.

Method Detail

paintImage

public boolean paintImage(java.awt.image.BufferedImage img)

Paints the image with the current display and flip modes.

Parameters:

img - the image to be painted on the canvas.

Returns:

true if the drawing is successful.

getAllAtx

public java.awt.geom.AffineTransform getAllAtx()

Gets the current transformation that includes the transformation computed for setting the display and flip modes.

Returns:

all the transformation that includes the trasformation computed for initial display mode and flip modes.

getDispModeAtx

public java.awt.geom.AffineTransform getDispModeAtx()

Gets the transformation computed for setting the display and flip modes.

Returns:

the transformation computed for initial display mode and flip modes.

drawShape

public void drawShape(java.awt.Shape s)

Draws a shape on the canvas.

Parameters:

s - the Shape to be drawn on the canvas.

fillShape

public void fillShape(java.awt.Shape s)

Fills the specified shape.

Parameters:

s - the Shape to be filled.

eraseShapes

public void eraseShapes()

Erases shapes drawn on the canvas.

Specified by:

eraseShapes in interface DrawingCanvas

getDisplayedImageGC

public java.awt.Graphics2D getDisplayedImageGC()

Description copied from interface: DrawingCanvas

Use this method to check out the graphics context.

Specified by:

getDisplayedImageGC in interface DrawingCanvas

Overrides:

getDisplayedImageGC in class ImageCanvas

Following copied from interface: com.vistech.imageviewer.DrawingCanvas

Returns:

the graphics context on which the image drawn. Graphics objects are drawn on this context.

getDisplayedImage

public java.awt.image.BufferedImage getDisplayedImage()

Description copied from interface: ImageDisplay

Returns the image displayed on the canvas.

Overrides:

getDisplayedImage in class ImageCanvas

Following copied from interface: com.vistech.imageviewer.ImageDisplay

Returns:

the displayed imge.

reset

public void reset()

Description copied from interface: DrawingCanvas

Resets the canvas

Specified by:

reset in interface DrawingCanvas

Overrides:

reset in class ImageCanvas2D