net.infonode.gui.componentpainter
Class GradientComponentPainter

java.lang.Object
  net.infonode.gui.componentpainter.AbstractComponentPainter
      net.infonode.gui.componentpainter.GradientComponentPainter

All Implemented Interfaces:

java.io.Serializable, ComponentPainter

public class GradientComponentPainter
extends AbstractComponentPainter
implements java.io.Serializable

A painter that paints an gradient area specified by four corner colors.

Version:

$Revision: 1.11 $

Author:

$Author: jesper $

See Also:

Serialized Form

Field Summary

private ColorProvider[]	colorProviders
private java.awt.Color[]	colors
private boolean	hasAlpha
private java.lang.ref.SoftReference[]	images
private static long	serialVersionUID
private int	size

Constructor Summary

GradientComponentPainter(java.awt.Color topLeftColor, java.awt.Color topRightColor, java.awt.Color bottomLeftColor, java.awt.Color bottomRightColor)
Constructor.

GradientComponentPainter(ColorProvider topLeftColor, ColorProvider topRightColor, ColorProvider bottomLeftColor, ColorProvider bottomRightColor)
Constructor.

Method Summary

private java.awt.Image	createGradientImage(java.awt.Color[] colors)
private java.awt.Color[]	fixColors(Direction direction, boolean horizontalFlip, boolean verticalFlip)
java.awt.Color	getColor(java.awt.Component component) Returns an approximate average color of the pixels painted by this painter.
boolean	isOpaque(java.awt.Component component) Returns true if this painter paints the entire area with an opaque color.
void	paint(java.awt.Component component, java.awt.Graphics g, int x, int y, int width, int height, Direction direction, boolean horizontalFlip, boolean verticalFlip) Paints an area in a specific direction and optinally flipped horizontally and/or vertically.
private void	updateColors(java.awt.Component component)

Methods inherited from class net.infonode.gui.componentpainter.AbstractComponentPainter

paint

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

colorProviders

private ColorProvider[] colorProviders

colors

private transient java.awt.Color[] colors

size

private int size

images

private transient java.lang.ref.SoftReference[] images

hasAlpha

private transient boolean hasAlpha

Constructor Detail

GradientComponentPainter

public GradientComponentPainter(java.awt.Color topLeftColor,
                                java.awt.Color topRightColor,
                                java.awt.Color bottomLeftColor,
                                java.awt.Color bottomRightColor)

Constructor.

Parameters:

topLeftColor - the top left corner color

topRightColor - the top right corner color

bottomLeftColor - the bottom left corner color

bottomRightColor - the bottom right corner color

GradientComponentPainter

public GradientComponentPainter(ColorProvider topLeftColor,
                                ColorProvider topRightColor,
                                ColorProvider bottomLeftColor,
                                ColorProvider bottomRightColor)

Constructor.

Parameters:

topLeftColor - the top left corner color provider

topRightColor - the top right corner color provider

bottomLeftColor - the bottom left corner color provider

bottomRightColor - the bottom right corner color provider

Method Detail

paint

public void paint(java.awt.Component component,
                  java.awt.Graphics g,
                  int x,
                  int y,
                  int width,
                  int height,
                  Direction direction,
                  boolean horizontalFlip,
                  boolean verticalFlip)

Description copied from interface: ComponentPainter

Paints an area in a specific direction and optinally flipped horizontally and/or vertically. The flips are performed before the rotation is applied.

Specified by:

paint in interface ComponentPainter

Overrides:

paint in class AbstractComponentPainter

Parameters:

component - the component to paint on

g - the graphics to paint on

x - the x-coordinate

y - the y-coordinate

width - the width

height - the height

direction - the direction, Direction.RIGHT is the normal direction

horizontalFlip - flip the painted graphics horizontally

verticalFlip - flip the painted graphics vertically

fixColors

private java.awt.Color[] fixColors(Direction direction,
                                   boolean horizontalFlip,
                                   boolean verticalFlip)

createGradientImage

private java.awt.Image createGradientImage(java.awt.Color[] colors)

updateColors

private void updateColors(java.awt.Component component)

isOpaque

public boolean isOpaque(java.awt.Component component)

Description copied from interface: ComponentPainter

Returns true if this painter paints the entire area with an opaque color.

Specified by:

isOpaque in interface ComponentPainter

Overrides:

isOpaque in class AbstractComponentPainter

Parameters:

component - the component to paint on

Returns:

true if this painter paints the entire area with an opaque color

getColor

public java.awt.Color getColor(java.awt.Component component)

Description copied from interface: ComponentPainter

Returns an approximate average color of the pixels painted by this painter.

Specified by:

getColor in interface ComponentPainter

Parameters:

component - the component to paint on

Returns:

an approximate average color of the pixels painted by this painter