jsky.image.gui
Class ImageZoom
java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
jsky.image.gui.ImageZoom
- All Implemented Interfaces:
- ImageObserver, MenuContainer, Serializable, EventListener, ChangeListener, ImageGraphicsHandler
public class ImageZoom
- extends JComponent
- implements ChangeListener, ImageGraphicsHandler
This widget is for displaying a magnified section of the image
at the mouse pointer.
- Version:
- $Revision: 1.8 $
- Author:
- Allan Brighton
- See Also:
- Serialized Form
Field Summary |
static int |
DEFAULT_SIZE
The default size for the zoom window |
Method Summary |
void |
drawImageGraphics(BasicImageDisplay imageDisplay,
Graphics2D g)
Called each time the image is repainted to draw a rectangle on
the image marking the position of the mouse pointer in the
target image. |
BasicImageDisplay |
getImageDisplay()
Return the zoom image display. |
MainImageDisplay |
getMainImageDisplay()
Return the target ImageDisplay that we are monitoring. |
float |
getZoomFactor()
Return the zoom factor |
boolean |
isActive()
Return the active state of the zoom window |
boolean |
isEnabled()
Return the enabled state of the zoom window |
boolean |
isPropagateScale()
Return true if changes in the main image scale are propagated to the zoom window. |
void |
setActive(boolean b)
Set the active state to false to stop the zoom window from updating when the
mouse is moved over the main image. |
void |
setEnabled(boolean b)
Enable or disable the zoom window |
void |
setMainImageDisplay(MainImageDisplay mainImageDisplay)
Set the target image display that we are monitoring. |
void |
setPropagateScale(boolean b)
If true (default), changes in the main image scale are propagated to the zoom window. |
void |
setZoomFactor(float factor)
Set the zoom factor |
void |
stateChanged(ChangeEvent ce)
Called when the main image changes in some way. |
void |
updateRect()
Update the rect object with the coordinates of the mouse pointer
in the target image. |
void |
zoom(int x,
int y,
boolean force)
This method is called when the mouse is moved over the target image. |
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, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, 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, 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, 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, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle |
DEFAULT_SIZE
public static final int DEFAULT_SIZE
- The default size for the zoom window
- See Also:
- Constant Field Values
ImageZoom
public ImageZoom(MainImageDisplay mainImageDisplay,
int width,
int height,
float factor)
- Constructor
- Parameters:
mainImageDisplay
- The target image display being controlled.width
- The desired width of the zoom windowheight
- The desired height of the zoom windowfactor
- The zoom (magnification) factor
ImageZoom
public ImageZoom(MainImageDisplay mainImageDisplay)
- Constructor
- Parameters:
mainImageDisplay
- The target image display being controlled.
ImageZoom
public ImageZoom()
- Default Constructor (must call setMainImageDisplay() later).
setZoomFactor
public void setZoomFactor(float factor)
- Set the zoom factor
getZoomFactor
public float getZoomFactor()
- Return the zoom factor
setMainImageDisplay
public void setMainImageDisplay(MainImageDisplay mainImageDisplay)
- Set the target image display that we are monitoring.
getImageDisplay
public BasicImageDisplay getImageDisplay()
- Return the zoom image display.
getMainImageDisplay
public MainImageDisplay getMainImageDisplay()
- Return the target ImageDisplay that we are monitoring.
setEnabled
public void setEnabled(boolean b)
- Enable or disable the zoom window
- Overrides:
setEnabled
in class JComponent
isEnabled
public boolean isEnabled()
- Return the enabled state of the zoom window
- Overrides:
isEnabled
in class Component
setActive
public void setActive(boolean b)
- Set the active state to false to stop the zoom window from updating when the
mouse is moved over the main image.
isActive
public boolean isActive()
- Return the active state of the zoom window
setPropagateScale
public void setPropagateScale(boolean b)
- If true (default), changes in the main image scale are propagated to the zoom window.
isPropagateScale
public boolean isPropagateScale()
- Return true if changes in the main image scale are propagated to the zoom window.
zoom
public void zoom(int x,
int y,
boolean force)
- This method is called when the mouse is moved over the target image.
- Parameters:
x
- the X screen coordinate in the main imagey
- the Y screen coordinate in the main imageforce
- if true, do the update even if the "active" flag is set to false
stateChanged
public void stateChanged(ChangeEvent ce)
- Called when the main image changes in some way. The change event
(ImageChangeEvent) describes what changed.
- Specified by:
stateChanged
in interface ChangeListener
updateRect
public void updateRect()
- Update the rect object with the coordinates of the mouse pointer
in the target image.
drawImageGraphics
public void drawImageGraphics(BasicImageDisplay imageDisplay,
Graphics2D g)
- Called each time the image is repainted to draw a rectangle on
the image marking the position of the mouse pointer in the
target image.
- Specified by:
drawImageGraphics
in interface ImageGraphicsHandler
Copyright © 2015 Central Laboratory of the Research Councils. All Rights Reserved.