org.biojava.bio.gui.sequence
Class SubCircularRendererContext

java.lang.Object
  org.biojava.bio.gui.sequence.SubCircularRendererContext

All Implemented Interfaces:

CircularRendererContext

public class SubCircularRendererContext
extends Object
implements CircularRendererContext

A renderer context that allows some or all properties of another context to be over-ridden.

Since:

1.4

Author:

Matthew Pocock

Constructor Summary

SubCircularRendererContext(CircularRendererContext delegate, SymbolList symbols, FeatureHolder features, double radius)
Create a new sub context.

Method Summary

double	getAngle(int indx) Return the angle for an index into a sequence.
FeatureHolder	getFeatures() The features to render.
int	getIndex(double angle) Calculate the position in the sequence relating to the angle.
double	getOffset() Get the angle through which the origin of the sequence is rotated through.
double	getRadius() Get the current radius at which data should be rendered.
SymbolList	getSymbols() The SymbolList that is currently rendered by this context.

Methods inherited from class java.lang.Object

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

Constructor Detail

SubCircularRendererContext

public SubCircularRendererContext(CircularRendererContext delegate,
                                  SymbolList symbols,
                                  FeatureHolder features,
                                  double radius)

Create a new sub context.

Supply the real values for symbols, features and radius if you want this context to mask the values of the parent context. Otherwise, provide the default values.

Parameters:

delegate - the original context to wrap

symbols - the SymbolList to return for getSymbols(), or null

features - the FeatureHolder to return for getFeatures(), or null

radius - the radius to return for getRadius(), or NaN

Throws:

NullPointerException - if delegate is null

Method Detail

getOffset

public double getOffset()

Description copied from interface: CircularRendererContext

Get the angle through which the origin of the sequence is rotated through.

This is equivalent to adding the offset to all calculated angles.

Specified by:

getOffset in interface CircularRendererContext

Returns:

the rotation offset

getAngle

public double getAngle(int indx)

Description copied from interface: CircularRendererContext

Return the angle for an index into a sequence.

Specified by:

getAngle in interface CircularRendererContext

Parameters:

indx - the sequence offset

Returns:

the angle this offset is to be rendered to

getIndex

public int getIndex(double angle)

Description copied from interface: CircularRendererContext

Calculate the position in the sequence relating to the angle.

Specified by:

getIndex in interface CircularRendererContext

Parameters:

angle - the angle arround the circle

Returns:

the index of the symbol rendered at that angle

getRadius

public double getRadius()

Description copied from interface: CircularRendererContext

Get the current radius at which data should be rendered.

Specified by:

getRadius in interface CircularRendererContext

Returns:

the radius

getSymbols

public SymbolList getSymbols()

Description copied from interface: CircularRendererContext

The SymbolList that is currently rendered by this context.

Specified by:

getSymbols in interface CircularRendererContext

Returns:

the Sequence value

getFeatures

public FeatureHolder getFeatures()

Description copied from interface: CircularRendererContext

The features to render.

Specified by:

getFeatures in interface CircularRendererContext

Returns:

a FeatureHolder with the Features to render