smile.swing

Class AlphaIcon

java.lang.Object

smile.swing.AlphaIcon

All Implemented Interfaces:

javax.swing.Icon

public class AlphaIcon
extends java.lang.Object
implements javax.swing.Icon

An Icon wrapper that paints the contained icon with a specified transparency.

Note: This class is not suitable for wrapping an ImageIcon that holds an animated image.

Constructor Summary

Constructors

Constructor and Description
AlphaIcon(javax.swing.Icon icon, float alpha) Creates an AlphaIcon with the specified icon and opacity.

Method Summary

Modifier and Type	Method and Description
float	getAlpha() Gets this AlphaIcon's opacity
javax.swing.Icon	getIcon() Gets the icon wrapped by this AlphaIcon
int	getIconHeight() Gets the height of the bounding rectangle of this AlphaIcon.
int	getIconWidth() Gets the width of the bounding rectangle of this AlphaIcon.
void	paintIcon(java.awt.Component c, java.awt.Graphics g, int x, int y) Paints the wrapped icon with this AlphaIcon's transparency.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlphaIcon

public AlphaIcon(javax.swing.Icon icon,
                 float alpha)

Creates an AlphaIcon with the specified icon and opacity. The opacity alpha should be in the range 0.0F (fully transparent) to 1.0F (fully opaque).

Parameters:

icon - the Icon to wrap

alpha - the opacity

Method Detail

getAlpha

public float getAlpha()

Gets this AlphaIcon's opacity

Returns:

the opacity, in the range 0.0 to 1.0

getIcon

public javax.swing.Icon getIcon()

Gets the icon wrapped by this AlphaIcon

Returns:

the wrapped icon

paintIcon

public void paintIcon(java.awt.Component c,
                      java.awt.Graphics g,
                      int x,
                      int y)

Paints the wrapped icon with this AlphaIcon's transparency.

Specified by:

paintIcon in interface javax.swing.Icon

Parameters:

c - The component to which the icon is painted

g - the graphics context

x - the X coordinate of the icon's top-left corner

y - the Y coordinate of the icon's top-left corner

getIconWidth

public int getIconWidth()

Gets the width of the bounding rectangle of this AlphaIcon. Returns the width of the wrapped icon.

Specified by:

getIconWidth in interface javax.swing.Icon

Returns:

the width in pixels

getIconHeight

public int getIconHeight()

Gets the height of the bounding rectangle of this AlphaIcon. * Returns the height of the wrapped icon.

Specified by:

getIconHeight in interface javax.swing.Icon

Returns:

the height in pixels