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Class symantec.itools.awt.ImageButton

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Canvas
                   |
                   +----symantec.itools.awt.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.

scale

If true the image is scaled to fit the button.

ImageButton()

Constructs a new default ImageButton.

getCenterMode()

Gets the current image centering mode.

getImageURL()

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

getScaleMode()

Gets the current image scaling mode.

paint(Graphics)

Paints this component using the given graphics context.

setCenterMode(boolean)

Conditionally sets the image centering mode.

setImageURL(URL)

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

setScaleMode(boolean)

Conditionally sets the image scaling mode.

update(Graphics)

Handles redrawing of this component on the screen.

  protected boolean scale

If true the image is scaled to fit the button.

  public ImageButton()

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

  public void setImageURL(URL u)

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

Parameters:

u - the URL of the image to display

See Also:

getImageURL

  public URL getImageURL()

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

See Also:

setImageURL

  public void setScaleMode(boolean flag)

Conditionally sets the image scaling mode. When this mode is on, the image is scaled to fit within the border of the button.

Parameters:

flag - if true, the image is scaled to fit the button; if false, the image is not scaled

See Also:

getScaleMode

  public boolean getScaleMode()

Gets the current image scaling mode. When this mode is on, the image is scaled to fit within the border of the button.

Returns:

true if the image is scaled to fit the button; otherwise false

See Also:

setScaleMode

  public void setCenterMode(boolean flag)

Conditionally sets the image centering mode. When this mode is on, the image is centered within the button. When it is off, the image is drawn starting in the upper-left corner.

Parameters:

flag - if true, the image is centered on the button; if false, the image is displayed starting in the upper-left corner

See Also:

getCenterMode

  public boolean getCenterMode()

Gets the current image centering mode. When this mode is on, the image is centered within the button. When it is off, the image is drawn starting in the upper-left corner.

Returns:

true if the image is centered on the button; otherwise false

See Also:

setCenterMode

  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 ButtonBase

See Also:

repaint, update

  public void update(Graphics g)

Handles redrawing of this component on the screen. This is a standard Java AWT method which gets called by the Java AWT (repaint()) to handle repainting this component on the screen. 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. Typically this method paints the background color to clear the component's drawing space, sets graphics context to be the foreground color, and then calls paint() to draw the component. It is overridden here to prevent the flicker associated with the standard update() method's repainting of the background before painting the component itself.

Parameters:

g - the graphics context

Overrides:

update in class ButtonBase

See Also:

repaint, paint

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