org.jfree.chart.renderer.xy

Class GradientXYBarPainter

java.lang.Object

org.jfree.chart.renderer.xy.GradientXYBarPainter

All Implemented Interfaces:

java.io.Serializable, XYBarPainter

public class GradientXYBarPainter
extends java.lang.Object
implements XYBarPainter, java.io.Serializable

An implementation of the XYBarPainter interface that uses several gradient fills to enrich the appearance of the bars.

Since:

1.0.11

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private double	g1 The division point between the first and second gradient regions.
private double	g2 The division point between the second and third gradient regions.
private double	g3 The division point between the third and fourth gradient regions.

Constructor Summary

Constructors

Constructor and Description
GradientXYBarPainter() Creates a new instance.
GradientXYBarPainter(double g1, double g2, double g3) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
private java.awt.geom.Rectangle2D	createShadow(java.awt.geom.RectangularShape bar, double xOffset, double yOffset, org.jfree.ui.RectangleEdge base, boolean pegShadow) Creates a shadow for the bar.
boolean	equals(java.lang.Object obj) Tests this instance for equality with an arbitrary object.
int	hashCode() Returns a hash code for this instance.
void	paintBar(java.awt.Graphics2D g2, XYBarRenderer renderer, int row, int column, java.awt.geom.RectangularShape bar, org.jfree.ui.RectangleEdge base) Paints a single bar instance.
void	paintBarShadow(java.awt.Graphics2D g2, XYBarRenderer renderer, int row, int column, java.awt.geom.RectangularShape bar, org.jfree.ui.RectangleEdge base, boolean pegShadow) Paints a single bar instance.
private java.awt.geom.Rectangle2D[]	splitHorizontalBar(java.awt.geom.RectangularShape bar, double a, double b, double c) Splits a bar into subregions (elsewhere, these subregions will have different gradients applied to them).
private java.awt.geom.Rectangle2D[]	splitVerticalBar(java.awt.geom.RectangularShape bar, double a, double b, double c) Splits a bar into subregions (elsewhere, these subregions will have different gradients applied to them).

Methods inherited from class java.lang.Object

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

Field Detail

g1

private double g1

The division point between the first and second gradient regions.

g2

private double g2

The division point between the second and third gradient regions.

g3

private double g3

The division point between the third and fourth gradient regions.

Constructor Detail

GradientXYBarPainter

public GradientXYBarPainter()

Creates a new instance.

GradientXYBarPainter

public GradientXYBarPainter(double g1,
                            double g2,
                            double g3)

Creates a new instance.

Parameters:

g1 - the division between regions 1 and 2.

g2 - the division between regions 2 and 3.

g3 - the division between regions 3 and 4.

Method Detail

paintBar

public void paintBar(java.awt.Graphics2D g2,
                     XYBarRenderer renderer,
                     int row,
                     int column,
                     java.awt.geom.RectangularShape bar,
                     org.jfree.ui.RectangleEdge base)

Paints a single bar instance.

Specified by:

paintBar in interface XYBarPainter

Parameters:

g2 - the graphics target.

renderer - the renderer.

row - the row index.

column - the column index.

bar - the bar

base - indicates which side of the rectangle is the base of the bar.

paintBarShadow

public void paintBarShadow(java.awt.Graphics2D g2,
                           XYBarRenderer renderer,
                           int row,
                           int column,
                           java.awt.geom.RectangularShape bar,
                           org.jfree.ui.RectangleEdge base,
                           boolean pegShadow)

Paints a single bar instance.

Specified by:

paintBarShadow in interface XYBarPainter

Parameters:

g2 - the graphics target.

renderer - the renderer.

row - the row index.

column - the column index.

bar - the bar

base - indicates which side of the rectangle is the base of the bar.

pegShadow - peg the shadow to the base of the bar?

createShadow

private java.awt.geom.Rectangle2D createShadow(java.awt.geom.RectangularShape bar,
                                               double xOffset,
                                               double yOffset,
                                               org.jfree.ui.RectangleEdge base,
                                               boolean pegShadow)

Creates a shadow for the bar.

Parameters:

bar - the bar shape.

xOffset - the x-offset for the shadow.

yOffset - the y-offset for the shadow.

base - the edge that is the base of the bar.

pegShadow - peg the shadow to the base?

Returns:

A rectangle for the shadow.

splitVerticalBar

private java.awt.geom.Rectangle2D[] splitVerticalBar(java.awt.geom.RectangularShape bar,
                                                     double a,
                                                     double b,
                                                     double c)

Splits a bar into subregions (elsewhere, these subregions will have different gradients applied to them).

Parameters:

bar - the bar shape.

a - the first division.

b - the second division.

c - the third division.

Returns:

An array containing four subregions.

splitHorizontalBar

private java.awt.geom.Rectangle2D[] splitHorizontalBar(java.awt.geom.RectangularShape bar,
                                                       double a,
                                                       double b,
                                                       double c)

Splits a bar into subregions (elsewhere, these subregions will have different gradients applied to them).

Parameters:

bar - the bar shape.

a - the first division.

b - the second division.

c - the third division.

Returns:

An array containing four subregions.

equals

public boolean equals(java.lang.Object obj)

Tests this instance for equality with an arbitrary object.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the obj (null permitted).

Returns:

A boolean.

hashCode

public int hashCode()

Returns a hash code for this instance.

Overrides:

hashCode in class java.lang.Object

Returns:

A hash code.