com.sshtools.ui.awt

Class ImageCanvas

java.lang.Object

java.awt.Component

java.awt.Canvas

com.sshtools.ui.awt.ImageCanvas

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible

public class ImageCanvas
extends Canvas

Simple component to draw an image. The image can be either centered in the container or

Author:

$author$

See Also:

Serialized Form

Nested Class Summary

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

Canvas.AccessibleAWTCanvas

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

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

Field Summary

Fields

Modifier and Type	Field and Description
static int	CENTERED Centered in container
static int	STRETCH Resize to take up all space allocated to component

Fields inherited from class java.awt.Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

Constructors

Constructor and Description
ImageCanvas() Construct a new image canvas
ImageCanvas(Class cls, String image) Construct a new image canvas given a Class from which the Classloader can be determined, and the resource name.
ImageCanvas(Image image) Construct a new image canvas

Method Summary

Modifier and Type	Method and Description
int	getBorder() Get the border width around the image
Color	getBorderColor() Get the border color
Image	getImage() Set the image to display
Dimension	getMinimumSize()
Dimension	getPreferredSize()
int	getScale() Get the scale.
boolean	isDoubleBuffered()
void	paint(Graphics g)
void	setBorder(int border) Set the border width around the image
void	setBorderColor(Color borderColor) Set the border color
void	setDoubleBuffered(boolean doubleBuffered)
void	setHalign(float halign) Set the horizontal alignment
void	setImage(Image image) Set the image to display
void	setScale(int scale) Set the scale.
void	setValign(float valign) Set the vertical alignment
void	update(Graphics g)

Methods inherited from class java.awt.Canvas

addNotify, createBufferStrategy, createBufferStrategy, getAccessibleContext, getBufferStrategy

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, 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, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, revalidate, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, validate

Methods inherited from class java.lang.Object

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

Field Detail

CENTERED

public static final int CENTERED

Centered in container

See Also:

Constant Field Values

STRETCH

public static final int STRETCH

Resize to take up all space allocated to component

See Also:

Constant Field Values

Constructor Detail

ImageCanvas

public ImageCanvas()

Construct a new image canvas

ImageCanvas

public ImageCanvas(Image image)

Construct a new image canvas

Parameters:

iamge - image

ImageCanvas

public ImageCanvas(Class cls,
                   String image)

Construct a new image canvas given a Class from which the Classloader can be determined, and the resource name. The image will be centered in the container.

Parameters:

cls - name of image

scale - scale

Method Detail

setValign

public void setValign(float valign)

Set the vertical alignment

Parameters:

f - vertical alignment

setHalign

public void setHalign(float halign)

Set the horizontal alignment

Parameters:

f - horizontal alignment

setBorder

public void setBorder(int border)

Set the border width around the image

Parameters:

border - border

getBorder

public int getBorder()

Get the border width around the image

Returns:

border

getBorderColor

public Color getBorderColor()

Get the border color

Returns:

border color

setBorderColor

public void setBorderColor(Color borderColor)

Set the border color

Parameters:

borderColor - border color

setScale

public void setScale(int scale)

Set the scale. Can be one of

• ImageCanvas.STRETCH
• ImageCanvas.CENTERED

Parameters:

scale - scale

getScale

public int getScale()

Get the scale. Can be one of

• ImageCanvas.STRETCH
• ImageCanvas.CENTERED

Returns:

scale

setImage

public void setImage(Image image)

Set the image to display

Parameters:

image -

getImage

public Image getImage()

Set the image to display

Returns:

image

update

public void update(Graphics g)

Overrides:

update in class Canvas

isDoubleBuffered

public boolean isDoubleBuffered()

Overrides:

isDoubleBuffered in class Component

setDoubleBuffered

public void setDoubleBuffered(boolean doubleBuffered)

paint

public void paint(Graphics g)

Overrides:

paint in class Canvas

getPreferredSize

public Dimension getPreferredSize()

Overrides:

getPreferredSize in class Component

getMinimumSize

public Dimension getMinimumSize()

Overrides:

getMinimumSize in class Component