Package elki.visualization

Class VisualizerContext

java.lang.Object

elki.visualization.VisualizerContext

All Implemented Interfaces:

DataStoreListener

public class VisualizerContext
extends java.lang.Object
implements DataStoreListener

Map to store context information for the visualizer. This can be any data that should to be shared among plots, such as line colors, styles etc.

Since:

0.3

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.Object	baseResult	Starting point of the result tree, may be null.
private java.util.Collection<VisualizationProcessor>	factories	Factories to use
private java.util.ArrayList<DataStoreListener>	listenerList	The event listeners for this context.
private static Logging	LOG	Logger.
private SelectionResult	selection	Selection result
(package private) StyleLibrary	stylelibrary	Style library
(package private) StylingPolicy	stylepolicy	Styling policy
private VisualizationTree	vistree	Tree of visualizations.

Constructor Summary

Constructors

Constructor	Description
VisualizerContext(java.lang.Object start, StyleLibrary stylelib, java.util.Collection<VisualizationProcessor> factories)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	addDataStoreListener(DataStoreListener l)	Adds a listener for the DataStoreEvent posted after the content changes.
void	addResultListener(ResultListener listener)	Register a result listener.
void	addVis(java.lang.Object parent, VisualizationItem vis)	Add (register) a visualization.
void	addVisualizationListener(VisualizationListener listener)	Add a listener.
void	contentChanged(DataStoreEvent e)	Proxy datastore event to child listeners.
private Clustering<Model>	generateDefaultClustering()	Generate a default (fallback) clustering.
java.lang.Object	getBaseResult()	Starting point for visualization, may be null.
java.lang.String	getLongName()
DBIDSelection	getSelection()	Get the current selection.
SelectionResult	getSelectionResult()	Get the current selection result.
java.lang.String	getShortName()
StyleLibrary	getStyleLibrary()	Get the style library
StylingPolicy	getStylingPolicy()	Get the active styling policy
VisualizationTree	getVisHierarchy()
java.util.List<VisualizationTask>	getVisTasks(VisualizationItem item)
protected void	makeStyleResult(StyleLibrary stylelib)	Generate a new style result for the given style library.
private void	notifyFactories(java.lang.Object item)	Notify factories of a change.
void	removeDataStoreListener(DataStoreListener l)	Removes a listener previously added with addDataStoreListener.
void	removeResultListener(ResultListener listener)	Remove a result listener.
void	removeVisualizationListener(VisualizationListener listener)	Add a listener.
void	setSelection(DBIDSelection sel)	Set a new selection.
void	setStyleLibrary(StyleLibrary library)	Get the style library
void	setStylingPolicy(StylingPolicy policy)	Set the active styling policy
void	visChanged(VisualizationItem item)	A visualization item has changed.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Logging LOG

Logger.

vistree

private VisualizationTree vistree

Tree of visualizations.

listenerList

private java.util.ArrayList<DataStoreListener> listenerList

The event listeners for this context.

factories

private java.util.Collection<VisualizationProcessor> factories

Factories to use

selection

private SelectionResult selection

Selection result

stylepolicy

StylingPolicy stylepolicy

Styling policy

stylelibrary

StyleLibrary stylelibrary

Style library

baseResult

private java.lang.Object baseResult

Starting point of the result tree, may be null.

Constructor Detail

VisualizerContext

public VisualizerContext(java.lang.Object start,
                         StyleLibrary stylelib,
                         java.util.Collection<VisualizationProcessor> factories)

Constructor. We currently require a Database and a Result.

Parameters:

start - Starting result

stylelib - Style library

factories - Visualizer Factories to use

Method Detail

makeStyleResult

protected void makeStyleResult(StyleLibrary stylelib)

Generate a new style result for the given style library.

Parameters:

stylelib - Style library

getStylingPolicy

public StylingPolicy getStylingPolicy()

Get the active styling policy

Returns:

Styling policy

setStylingPolicy

public void setStylingPolicy(StylingPolicy policy)

Set the active styling policy

Parameters:

policy - new Styling policy

getStyleLibrary

public StyleLibrary getStyleLibrary()

Get the style library

Returns:

Style library

setStyleLibrary

public void setStyleLibrary(StyleLibrary library)

Get the style library

Parameters:

library - Style library

generateDefaultClustering

private Clustering<Model> generateDefaultClustering()

Generate a default (fallback) clustering.

Returns:

generated clustering

getSelectionResult

public SelectionResult getSelectionResult()

Get the current selection result.

Returns:

selection result

getSelection

public DBIDSelection getSelection()

Get the current selection.

Returns:

selection

setSelection

public void setSelection(DBIDSelection sel)

Set a new selection.

Parameters:

sel - Selection

addDataStoreListener

public void addDataStoreListener(DataStoreListener l)

Adds a listener for the DataStoreEvent posted after the content changes.

Parameters:

l - the listener to add

See Also:

removeDataStoreListener(elki.database.datastore.DataStoreListener)

removeDataStoreListener

public void removeDataStoreListener(DataStoreListener l)

Removes a listener previously added with addDataStoreListener.

Parameters:

l - the listener to remove

See Also:

addDataStoreListener(elki.database.datastore.DataStoreListener)

contentChanged

public void contentChanged(DataStoreEvent e)

Proxy datastore event to child listeners.

Specified by:

contentChanged in interface DataStoreListener

Parameters:

e - the update event

addResultListener

public void addResultListener(ResultListener listener)

Register a result listener.

Parameters:

listener - Result listener.

removeResultListener

public void removeResultListener(ResultListener listener)

Remove a result listener.

Parameters:

listener - Result listener.

addVisualizationListener

public void addVisualizationListener(VisualizationListener listener)

Add a listener.

Parameters:

listener - Listener to add

removeVisualizationListener

public void removeVisualizationListener(VisualizationListener listener)

Add a listener.

Parameters:

listener - Listener to remove

getLongName

public java.lang.String getLongName()

getShortName

public java.lang.String getShortName()

getBaseResult

public java.lang.Object getBaseResult()

Starting point for visualization, may be null.

Returns:

Starting point in the result tree, may be null.

addVis

public void addVis(java.lang.Object parent,
                   VisualizationItem vis)

Add (register) a visualization.

Parameters:

parent - Parent object

vis - Visualization

visChanged

public void visChanged(VisualizationItem item)

A visualization item has changed.

Parameters:

item - Item that has changed

notifyFactories

private void notifyFactories(java.lang.Object item)

Notify factories of a change.

Parameters:

item - Item that has changed.

getVisTasks

public java.util.List<VisualizationTask> getVisTasks(VisualizationItem item)

getVisHierarchy

public VisualizationTree getVisHierarchy()