jview
Class JScaleableImage

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              jview.JImageComponent
                  jview.JScaleableImage

All Implemented Interfaces:

ImageObserver, MenuContainer, Printable, Serializable

public class JScaleableImage
extends JImageComponent
implements Printable

A class that places an image that is completely loaded into a JComponent. The size of the component is retrieved from the image delivered to it.

See Also:

Serialized Form

Nested Class Summary

static class

JScaleableImage.Display Test the functionality.

Nested classes/interfaces inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

private AffineTransform	imposed Externally set size/flips of the image.
private AffineTransform	nonscale Externally flips of the image.
private Image	orgimage The original image, before the first call to setSize(java.awt.Dimension).
private boolean	scale Scale the image if not displayed in original size.

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 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

JScaleableImage()
Calls the superconstructor with no arguments.

JScaleableImage(boolean resize)
Calls the superconstructor with no arguments.

JScaleableImage(Image loaded)
Calls the superconstructor with no arguments and sets the fits image to display.

JScaleableImage(Image loaded, boolean resize)
Calls the superconstructor with no arguments and sets the fits image to display.

Method Summary

void	flipHorizontally() Flips the image horizontally.
void	flipVertically() Flips the image vertically.
AffineTransform	getImposed() Returns the transform originally used to scale the buffered image.
AffineTransform	getNonScaled() Returns all non-scaling transforms applied to the image.
Image	getOriginalImage() Returns the original image before scaling rotation or flipping.
Dimension	getOriginalSize() Returns the original size of the image.
double	getZoom() Returns somthing like a common zoom factor.
void	paintComponent(Graphics graph) Draws the image by directly interfering with the paint method.
int	print(Graphics into, PageFormat margin, int pagenum) Implemtens printing facilities.
void	setImage(Image loaded) Sets the fits image to display.
void	setSize(Dimension rescale) Sets the size of the image to be displayed.
void	setZoom(double zoom) Sets a zoom factor.

Methods inherited from class jview.JImageComponent

createBufferedImage, getImage, getPreferredSize

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

scale

private boolean scale

Scale the image if not displayed in original size.

imposed

private AffineTransform imposed

Externally set size/flips of the image.

nonscale

private AffineTransform nonscale

Externally flips of the image.

orgimage

private Image orgimage

The original image, before the first call to setSize(java.awt.Dimension).

Constructor Detail

JScaleableImage

public JScaleableImage()

Calls the superconstructor with no arguments.

JScaleableImage

public JScaleableImage(Image loaded)

Calls the superconstructor with no arguments and sets the fits image to display.

JScaleableImage

public JScaleableImage(boolean resize)

Calls the superconstructor with no arguments.

JScaleableImage

public JScaleableImage(Image loaded,
                       boolean resize)

Calls the superconstructor with no arguments and sets the fits image to display.

Method Detail

setImage

public void setImage(Image loaded)

Sets the fits image to display. If no original image was set, we record this image.

Overrides:

setImage in class JImageComponent

getOriginalSize

public Dimension getOriginalSize()

Returns the original size of the image.

getOriginalImage

public Image getOriginalImage()

Returns the original image before scaling rotation or flipping.

setZoom

public void setZoom(double zoom)

Sets a zoom factor. This method delegates to setSize(java.awt.Dimension) after a new size of the image has been calculated.

getZoom

public double getZoom()

Returns somthing like a common zoom factor. This method queries the current image size and compares it to the original size. The zoom returned is the average of the scaling in x and y direction.

setSize

public void setSize(Dimension rescale)

Sets the size of the image to be displayed. Implementation note: We directly set the image, pixel values won't have changed.

Overrides:

setSize in class Component

flipVertically

public void flipVertically()

Flips the image vertically. Only works on buffered images. We do not change the image size. Implementation note: We directly set the image, pixel values won't have changed.

flipHorizontally

public void flipHorizontally()

Flips the image horizontally. Only works on buffered images. We do not change the image size. Implementation note: We directly set the image, pixel values won't have changed.

getImposed

public AffineTransform getImposed()

Returns the transform originally used to scale the buffered image. May be null.

getNonScaled

public AffineTransform getNonScaled()

Returns all non-scaling transforms applied to the image. Note that this may only return the non-scaling transforms applied to the image before size setting.

paintComponent

public void paintComponent(Graphics graph)

Draws the image by directly interfering with the paint method. Note that the Graphics object handed over is always a Graphics2D instance.

Overrides:

paintComponent in class JImageComponent

print

public int print(Graphics into,
                 PageFormat margin,
                 int pagenum)

Implemtens printing facilities.

Specified by:

print in interface Printable