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Class symantec.itools.awt.ImageButton

Object
   |
   +----Component
           |
           +----Canvas
                   |
                   +----ButtonBase
                           |
                           +----symantec.itools.awt.ImageButton

public class ImageButton

extends ButtonBase

Use an ImageButton to:

· Display an image in a button instead of text.
· Generate a train of action events while the user presses the button.

Version:

1.1, August 5, 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.

disabledImage

The image displayed when the button is disabled

enabledImage

The normally displayed image

errors

Error strings.

imageStyle

Determines how to draw the image.

imageURL

The URL for the button's image

pressedImage

The image displayed when the button is pressed

symantec.itools.awt.ImageButton()

Constructs a new default ImageButton.

addImageStyleListener(PropertyChangeListener)

Adds a listener for the ImageStyle property changes.

addImageStyleListener(VetoableChangeListener)

Adds a vetoable listener for the ImageStyle property changes.

addNotify()

Tells this component that it has been added to a container.

addPropertyChangeListener(PropertyChangeListener)

Adds a listener for all event changes.

addVetoableChangeListener(VetoableChangeListener)

Adds a vetoable listener for all event changes.

getCenterMode()

getImageStyle()

Gets the current panel image style.

getImageURL()

Returns the URL of the image being displayed in the button.

getPreferredSize()

Returns the recommended dimensions to properly display this component.

getScaleMode()

isCenterMode()

isScaleMode()

isValidImageStyle(int)

Is the given image style valid for this button.

removeImageStyleListener(PropertyChangeListener)

Removes a listener for the ImageStyle property changes.

removeImageStyleListener(VetoableChangeListener)

Removes a vetoable listener for the ImageStyle property changes.

removeNotify()

Tells this component that it is being removed from a container.

removePropertyChangeListener(PropertyChangeListener)

Removes a listener for all event changes.

removeVetoableChangeListener(VetoableChangeListener)

Removes a vetoable listener for all event changes.

setCenterMode(boolean)

setImageStyle(int)

Sets the new panel image style.

setImageURL(URL)

Sets the URL of the image to display in the button.

setScaleMode(boolean)

updateButtonImage()

Draws the button in the buttonImage offscreen image.

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.awt.Image disabledImage

The image displayed when the button is disabled

protected transient java.awt.Image enabledImage

The normally displayed image

protected transient java.util.ResourceBundle errors

Error strings.

protected int imageStyle

Determines how to draw the image.

protected java.net.URL imageURL

The URL for the button's image

protected transient java.awt.Image pressedImage

The image displayed when the button is pressed

public ImageButton()

Constructs a new default ImageButton. Image scaling is off and center mode on.

public synchronized void addImageStyleListener(PropertyChangeListener listener)

Adds a listener for the ImageStyle property changes.

Parameters:

listener - the listener to add.

See Also:

removeImageStyleListener(java.beans.PropertyChangeListener)

public synchronized void addImageStyleListener(VetoableChangeListener listener)

Adds a vetoable listener for the ImageStyle property changes.

Parameters:

listener - the listener to add.

See Also:

removeImageStyleListener(java.beans.VetoableChangeListener)

public synchronized void addNotify()

Tells this component that it has been added to a container. This is a standard Java AWT method which gets called by the AWT when this component is added to a container. Typically, it is used to create this component's peer. It has been overridden here to hook-up event listeners.

Overrides:

addNotify in class ButtonBase

See Also:

removeNotify

public synchronized void addPropertyChangeListener(PropertyChangeListener listener)

Adds a listener for all event changes.

Parameters:

listener - the listener to add.

Overrides:

addPropertyChangeListener in class ButtonBase

See Also:

removePropertyChangeListener

public synchronized void addVetoableChangeListener(VetoableChangeListener listener)

Adds a vetoable listener for all event changes.

Parameters:

listener - the listener to add.

Overrides:

addVetoableChangeListener in class ButtonBase

See Also:

removeVetoableChangeListener

public boolean getCenterMode()

Note: getCenterMode() is deprecated.

See Also:

isCenterMode

public int getImageStyle()

Gets the current panel image style.

Returns:

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

See Also:

setImageStyle, IMAGE_TILED, IMAGE_CENTERED, IMAGE_SCALED_TO_FIT

public java.net.URL getImageURL()

Returns the URL of the image being displayed in the button.

See Also:

setImageURL

public java.awt.Dimension getPreferredSize()

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.

Overrides:

getPreferredSize in class ButtonBase

public boolean getScaleMode()

Note: getScaleMode() is deprecated.

See Also:

isScaleMode

public boolean isCenterMode()

Note: isCenterMode() is deprecated.

See Also:

getImageStyle

public boolean isScaleMode()

Note: isScaleMode() is deprecated.

See Also:

getImageStyle

public boolean isValidImageStyle(int i)

Is the given image style valid for this button.

Parameters:

i - the given image style

Returns:

true if the given image style is acceptable, false if not.

public synchronized void removeImageStyleListener(PropertyChangeListener listener)

Removes a listener for the ImageStyle property changes.

Parameters:

listener - the listener to remove.

See Also:

addImageStyleListener(java.beans.PropertyChangeListener)

public synchronized void removeImageStyleListener(VetoableChangeListener listener)

Removes a vetoable listener for the ImageStyle property changes.

Parameters:

listener - the listener to remove.

See Also:

addImageStyleListener(java.beans.VetoableChangeListener)

public synchronized void removeNotify()

Tells this component that it is being removed from a container. This is a standard Java AWT method which gets called by the AWT when this component is removed from a container. Typically, it is used to destroy the peers of this component and all its subcomponents. It has been overridden here to unhook event listeners.

Overrides:

removeNotify in class ButtonBase

See Also:

addNotify

public synchronized void removePropertyChangeListener(PropertyChangeListener listener)

Removes a listener for all event changes.

Parameters:

listener - the listener to remove.

Overrides:

removePropertyChangeListener in class ButtonBase

See Also:

addPropertyChangeListener

public synchronized void removeVetoableChangeListener(VetoableChangeListener listener)

Removes a vetoable listener for all event changes.

Parameters:

listener - the listener to remove.

Overrides:

removeVetoableChangeListener in class ButtonBase

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:

setImageStyle

public void setImageStyle(int newStyle) throws PropertyVetoException

Sets the new panel image style.

Parameters:

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

Throws: PropertyVetoException

if the specified property value is unacceptable

See Also:

getImageStyle, IMAGE_TILED, IMAGE_CENTERED, IMAGE_SCALED_TO_FIT, IMAGE_NORMAL

public void setImageURL(URL u) throws PropertyVetoException

Sets the URL of the image to display in the button.

Parameters:

u - the URL of the image to display

Throws: PropertyVetoException

if the specified property value is unacceptable

See Also:

getImageURL

public void setScaleMode(boolean flag) throws PropertyVetoException

Note: setScaleMode() is deprecated.

Throws: PropertyVetoException

if the specified property value is unacceptable

See Also:

setImageStyle

protected void updateButtonImage()

Draws the button in the buttonImage offscreen image.

Overrides:

updateButtonImage in class ButtonBase

See Also:

updateButtonImage

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