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Class symantec.itools.multimedia.ImageViewer

Object
   |
   +----Component
           |
           +----symantec.itools.multimedia.ImageViewer

public class ImageViewer

extends Component

implements Serializable

Version:

1.1, August 4, 1997

Author:

Symantec

IMAGE_CENTERED

A constant indicating the image is to be centered in the size of this component.

IMAGE_NORMAL

A constant indicating the image is to be drawn normally in the upper left corner.

IMAGE_SCALED_TO_FIT

A constant indicating the image is to be scaled to fit the size of this component.

IMAGE_TILED

A constant indicating the image is to be tiled in the size of this component.

errors

Error strings.

fileName

Name of file, if any, associated with this image.

image

Image that this viewer is displaying.

imageStyle

Determines how to draw the image.

url

URL of the image being displayed.

symantec.itools.multimedia.ImageViewer()

Create default image viewer.

symantec.itools.multimedia.ImageViewer(String)

Crate image viewer with filename.

symantec.itools.multimedia.ImageViewer(URL)

Create image viewer with URL.

symantec.itools.multimedia.ImageViewer(Image)

Create image viewer with image.

addPropertyChangeListener(PropertyChangeListener)

Adds a listener for all event changes.

addVetoableChangeListener(VetoableChangeListener)

Adds a vetoable listener for all event changes.

getCenterMode()

getFileName()

Obtain the filename associated with the current image.

getImage()

Obtain the image currently being displayed.

getImageURL()

Obtain the URL associated with the current image.

getStyle()

Gets the current panel image style.

getURL()

minimumSize()

Returns the minimum dimensions to properly display this component.

paint(Graphics)

Paints this component using the given graphics context.

preferredSize()

Returns the recommended dimensions to properly display this component.

removePropertyChangeListener(PropertyChangeListener)

Removes a listener for all event changes.

removeVetoableChangeListener(VetoableChangeListener)

Removes a vetoable listener for all event changes.

setCenterMode(boolean)

setFileName(String)

Specify or change the image filename.

setImage(Image)

Set or change the current image.

setImageURL(URL)

Specify or change the image URL.

setStyle(int)

Sets the new panel image style.

setURL(URL)

public static final int IMAGE_CENTERED

A constant indicating the image is to be centered in the size of this component.

public static final int IMAGE_NORMAL

A constant indicating the image is to be drawn normally in the upper left corner.

public static final int IMAGE_SCALED_TO_FIT

A constant indicating the image is to be scaled to fit the size of this component.

public static final int IMAGE_TILED

A constant indicating the image is to be tiled in the size of this component.

protected transient java.util.ResourceBundle errors

Error strings.

protected java.lang.String fileName

Name of file, if any, associated with this image.

protected transient java.awt.Image image

Image that this viewer is displaying.

protected int imageStyle

Determines how to draw the image.

protected java.net.URL url

URL of the image being displayed.

public ImageViewer()

Create default image viewer.

public ImageViewer(String str) throws MalformedURLException

Crate image viewer with filename. The specified filename is used as the image source.

Parameters:

str - name of file containing the image source

Throws: MalformedURLException

Thrown if URL cannot be generated from filename

public ImageViewer(URL url)

Create image viewer with URL. The specified URL is used as the image source.

Parameters:

url - the URL of the image to be displayed

public ImageViewer(Image img)

Create image viewer with image. The specified image is used as the image source

Parameters:

img - the image to be displayed

public void addPropertyChangeListener(PropertyChangeListener listener)

Adds a listener for all event changes.

Parameters:

PropertyChangeListener - listener the listener to add.

See Also:

removePropertyChangeListener

public void addVetoableChangeListener(VetoableChangeListener listener)

Adds a vetoable listener for all event changes.

Parameters:

VetoableChangeListener - listener the listener to add.

See Also:

removeVetoableChangeListener

public boolean getCenterMode()

Note: getCenterMode() is deprecated.

See Also:

getStyle

public java.lang.String getFileName()

Obtain the filename associated with the current image.

Returns:

the name of the file, if any, associated with this image. If no file is associated with this image, returns null

public java.awt.Image getImage()

Obtain the image currently being displayed.

Returns:

the image currently displayed or null if no image

public java.net.URL getImageURL()

Obtain the URL associated with the current image. If the image was specified by file name, or URL, it will have a URL which indicates its source. Images created using the constructor with an Image parameter will have no associated URL.

Returns:

the name of the URL, if any, associated with this image. If no URL is associated with this image, returns null

public int getStyle()

Gets the current panel image style.

Returns:

the current panel image style, one of IMAGE_TILED, IMAGE_CENTERED, or IMAGE_SCALED_TO_FIT

See Also:

setStyle, IMAGE_TILED, IMAGE_CENTERED, IMAGE_SCALED_TO_FIT

public java.net.URL getURL()

Note: getURL() is deprecated.

See Also:

getImageURL

public java.awt.Dimension minimumSize()

Returns the minimum dimensions to properly display this component. This is a standard Java AWT method which gets called to determine the minimum size of this component.

Returns:

If no image has been loaded, a dimension of 10 by 10 is returned. If an image has been loaded, the height and width of the image is returned.

Overrides:

minimumSize in class Component

See Also:

preferredSize

public void paint(Graphics g)

Paints this component using the given graphics context. This is a standard Java AWT method which typically gets called by the AWT to handle painting this component. It paints this component using the given graphics context. The graphics context clipping region is set to the bounding rectangle of this component and its [0,0] coordinate is this component's top-left corner.

Parameters:

g - the graphics context used for painting

Overrides:

paint in class Component

See Also:

repaint, update

public java.awt.Dimension preferredSize()

Returns the recommended dimensions to properly display this component. This is a standard Java AWT method which gets called to determine the recommended size of this component.

Returns:

If no image has been loaded, a dimension of 10 by 10 is returned. If an image has been loaded, the height and width of the image is returned.

Overrides:

preferredSize in class Component

See Also:

minimumSize

public void removePropertyChangeListener(PropertyChangeListener listener)

Removes a listener for all event changes.

Parameters:

PropertyChangeListener - listener the listener to remove.

See Also:

addPropertyChangeListener

public void removeVetoableChangeListener(VetoableChangeListener listener)

Removes a vetoable listener for all event changes.

Parameters:

VetoableChangeListener - listener the listener to remove.

See Also:

addVetoableChangeListener

public void setCenterMode(boolean flag) throws PropertyVetoException

Note: setCenterMode() is deprecated.

Throws: PropertyVetoException

if the specified property value is unacceptable

See Also:

setStyle

public void setFileName(String str) throws PropertyVetoException

Specify or change the image filename.

Parameters:

str - name of file containing image source

Throws: PropertyVetoException

if the specified property value is unacceptable

public void setImage(Image img) throws PropertyVetoException

Set or change the current image. Call this method if you want to specify directly the image to display.

Parameters:

img - the image to be displayed

Throws: PropertyVetoException

if the specified property value is unacceptable

public void setImageURL(URL aUrl) throws PropertyVetoException

Specify or change the image URL.

Parameters:

aUrl - the URL of the image to be displayed

Throws: PropertyVetoException

if the specified property value is unacceptable

public void setStyle(int newStyle) throws PropertyVetoException

Sets the new panel image style.

Parameters:

newStyle - the new panel image style, one of IMAGE_TILED, IMAGE_CENTERED, or IMAGE_SCALED_TO_FIT

Throws: PropertyVetoException

if the specified property value is unacceptable

See Also:

getStyle, IMAGE_TILED, IMAGE_CENTERED, IMAGE_SCALED_TO_FIT, IMAGE_NORMAL

public void setURL(URL aUrl) throws PropertyVetoException

Note: setURL() is deprecated.

Throws: PropertyVetoException

if the specified property value is unacceptable

See Also:

setImageURL

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