com.approximatrix.charting.render
Class RowColorModel

java.lang.Object
  com.approximatrix.charting.render.RowColorModel

public class RowColorModel
extends java.lang.Object

This class implements the correspondence between the DataSets and the colors used for rendering the charts and the legend.

Version:

1.0

Author:

mueller

Field Summary

protected java.util.HashMap	customColors
protected java.util.HashMap	customShapes
static Diamond2D	DIAMOND_SHAPE A diamond marker for plotting
static java.awt.geom.Ellipse2D	ELLIPSE_SHAPE An ellipse marker for plotting
private static RowColorModel	instance
protected ChartDataModel	model
protected static java.awt.Color[]	predefinedColors Predefined colors for plotting lines and markers
protected int	predefinedColorsIdx Index holding the next predefined color to use for plotting
protected static java.awt.geom.RectangularShape[]	predefinedShapes Array of predefined shapes for plot markers
static java.awt.geom.Rectangle2D	SQUARE_SHAPE A square marker for plotting
static Triangle2D	TRIANGLE_SHAPE A triangle marker for plotting
static Triangle2D	TRIANGLEDOWN_SHAPE An upside-down triangle marker for plotting

Constructor Summary

RowColorModel(ChartDataModel model)
Creates new RowColorModel.

Method Summary

java.awt.Color	getColor(int row) Computes the Color for a DataSet.
static RowColorModel	getInstance(ChartDataModel model) Deprecated.
java.lang.String	getRow(int i) Returns the row title of a specific DataSet.
int	getRowCount() Computes the amount of all Legend entries, ie.
java.awt.geom.RectangularShape	getShape(int row) Returns the Shape for a DataSet.
void	setColor(int row, java.awt.Color color) Force a certain color for a row
void	setShape(int row, java.awt.geom.RectangularShape shape) Force a certain Shape for a row

Methods inherited from class java.lang.Object

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

Field Detail

instance

private static RowColorModel instance

model

protected ChartDataModel model

predefinedColors

protected static final java.awt.Color[] predefinedColors

Predefined colors for plotting lines and markers

ELLIPSE_SHAPE

public static final java.awt.geom.Ellipse2D ELLIPSE_SHAPE

An ellipse marker for plotting

SQUARE_SHAPE

public static final java.awt.geom.Rectangle2D SQUARE_SHAPE

A square marker for plotting

DIAMOND_SHAPE

public static final Diamond2D DIAMOND_SHAPE

A diamond marker for plotting

TRIANGLE_SHAPE

public static final Triangle2D TRIANGLE_SHAPE

A triangle marker for plotting

TRIANGLEDOWN_SHAPE

public static final Triangle2D TRIANGLEDOWN_SHAPE

An upside-down triangle marker for plotting

predefinedShapes

protected static final java.awt.geom.RectangularShape[] predefinedShapes

Array of predefined shapes for plot markers

predefinedColorsIdx

protected int predefinedColorsIdx

Index holding the next predefined color to use for plotting

customColors

protected java.util.HashMap customColors

customShapes

protected java.util.HashMap customShapes

Constructor Detail

RowColorModel

public RowColorModel(ChartDataModel model)

Creates new RowColorModel.

Parameters:

model - the ChartDataModel which contains the information about all the DataSets

Method Detail

getInstance

public static RowColorModel getInstance(ChartDataModel model)

Deprecated.

Use this method to get an instance of the chart's RowColorModel.

Parameters:

model - the ChartDataModel whose data sets will be mapped to colors.

Returns:

a new instance of RowColorModel if there's no instance of if the model has changed (esp. useful if you create multiple charts after one another).

getRowCount

public int getRowCount()

Computes the amount of all Legend entries, ie. DataSets.

Returns:

the amount of all rows, ie. DataSets.

getRow

public java.lang.String getRow(int i)

Returns the row title of a specific DataSet.

Parameters:

i - the DataSet index

Returns:

the String title

getColor

public java.awt.Color getColor(int row)

Computes the Color for a DataSet. For the first DataSets the stored Colors like Color.red etc are used. If there are more DataSets than stored colors, random colors are used.

Parameters:

row - the row for which the Color should be returned

Returns:

the Color stored for the given row.

getShape

public java.awt.geom.RectangularShape getShape(int row)

Returns the Shape for a DataSet. By default, the Shapes from the predefinedShapes array are cycled through unless you define your own shape to data binding using setShape(int row, RectangularShape shape).

Parameters:

row - the row for which the Shape should be returned

Returns:

the Shape stored for the given row.

setColor

public void setColor(int row,
                     java.awt.Color color)

Force a certain color for a row

Parameters:

row - the row for which the Color should be set

color - the color that is associated with the row

setShape

public void setShape(int row,
                     java.awt.geom.RectangularShape shape)

Force a certain Shape for a row

Parameters:

row - the row for which the Shape should be set

shape - the RectangularShape that is associated with the row