de.lmu.ifi.dbs.elki.visualization.visualizers
Class AbstractVisualizer

java.lang.Object
  de.lmu.ifi.dbs.elki.logging.AbstractLoggable
      de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualizer

All Implemented Interfaces:

Parameterizable, Visualizer

Direct Known Subclasses:

CurveVisualizer, HistogramVisualizer, KeyVisualizer, OPTICSPlotVisualizer, Projection1DVisualizer, Projection2DVisualizer, SettingsVisualizer

public abstract class AbstractVisualizer
extends AbstractLoggable
implements Visualizer

Abstract superclass for Visualizers.

Author:

Remigius Wojdanowski

Field Summary

protected VisualizerContext	context Visualizer context to use
private Vector<RedrawListener>	listeners Redraw Listeners
protected AnyMap<String>	metadata Meta data storage

Fields inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable

debug, logger

Fields inherited from interface de.lmu.ifi.dbs.elki.visualization.visualizers.Visualizer

LEVEL_BACKGROUND, LEVEL_FOREGROUND, LEVEL_INTERACTIVE, LEVEL_STATIC, META_LEVEL, META_NAME, META_NOTHUMB, META_VISIBLE, META_VISIBLE_DEFAULT

Constructor Summary

protected

AbstractVisualizer() Constructor with default level.

Method Summary

void	addRedrawListener(RedrawListener listener) Add a redraw listener to the visualizer.
protected void	fireRedrawEvent() Send a redraw notification to all listeners.
AnyMap<String>	getMetadata() Get visualization meta data, such as dimensions visualized.
protected void	init(String name, VisualizerContext context) Initializes this Visualizer.
boolean	removeRedrawListener(RedrawListener listener) Remove a redraw listener to the visualizer.
void	requestRedraw() Request a redraw Note: this method may be overwritten by subclasses for custom redraw handling, or called by other classes when they know the underlying data has changed.
protected void	setLevel(int level) Convenience method to update the visualizer level.

Methods inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable

debugFine, debugFiner, debugFinest, exception, progress, verbose, warning

Methods inherited from class java.lang.Object

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

Field Detail

context

protected VisualizerContext context

Visualizer context to use

metadata

protected AnyMap<String> metadata

Meta data storage

listeners

private Vector<RedrawListener> listeners

Redraw Listeners

Constructor Detail

AbstractVisualizer

protected AbstractVisualizer()

Constructor with default level.

Method Detail

init

protected void init(String name,
                    VisualizerContext context)

Initializes this Visualizer.

Parameters:

name - a short name characterizing this Visualizer

context - Visualization context

setLevel

protected void setLevel(int level)

Convenience method to update the visualizer level.

Parameters:

level - new level.

getMetadata

public AnyMap<String> getMetadata()

Description copied from interface: Visualizer

Get visualization meta data, such as dimensions visualized.

Specified by:

getMetadata in interface Visualizer

Returns:

AnyMap reference with meta data.

addRedrawListener

public void addRedrawListener(RedrawListener listener)

Add a redraw listener to the visualizer.

Specified by:

addRedrawListener in interface Visualizer

Parameters:

listener - Listener to be called on redraws.

removeRedrawListener

public boolean removeRedrawListener(RedrawListener listener)

Remove a redraw listener to the visualizer.

Specified by:

removeRedrawListener in interface Visualizer

Parameters:

listener - Listener to be removed.

Returns:

success

fireRedrawEvent

protected final void fireRedrawEvent()

Send a redraw notification to all listeners.

requestRedraw

public void requestRedraw()

Request a redraw Note: this method may be overwritten by subclasses for custom redraw handling, or called by other classes when they know the underlying data has changed.