de.lmu.ifi.dbs.elki.visualization.visualizers.thumbs
Class ThumbnailVisualization

java.lang.Object
  de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualization
      de.lmu.ifi.dbs.elki.visualization.visualizers.thumbs.ThumbnailVisualization

All Implemented Interfaces:

DataStoreListener, ResultListener, ContextChangeListener, ThumbnailThread.Listener, Visualization, EventListener

public class ThumbnailVisualization
extends AbstractVisualization
implements ThumbnailThread.Listener, DataStoreListener

Thumbnail visualization.

Field Summary

private int	mask The event mask.
static int	ON_DATA Constant to listen for data changes
static int	ON_SELECTION Constant to listen for selection changes
protected ThumbnailThread.Task	pendingThumbnail Pending redraw
protected File	thumb The thumbnail file.
protected int	tresolution Thumbnail resolution
protected VisFactory	visFactory Visualizer factory

Fields inherited from class de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualization

context, layer, pendingRedraw, svgp, task

Constructor Summary

ThumbnailVisualization(VisFactory visFactory, VisualizationTask task, int mask)
Constructor.

Method Summary

void	contentChanged(DataStoreEvent e) Invoked after objects of the datastore have been updated, inserted or removed in some way.
void	contextChanged(ContextChangedEvent e) Method called on context changes (e.g. projection changes).
void	destroy() Destroy the visualization.
void	doThumbnail(Thumbnailer t) Callback when to (re-)compute the thumbnail.
Element	getLayer() Get the SVG layer of the given visualization.
protected void	incrementalRedraw() Redraw the visualization (maybe incremental).
protected void	redraw() Perform a full redraw.
protected void	refreshThumbnail()
void	resultChanged(Result current) Notify that the current result has changed substantially.
protected boolean	testRedraw(ContextChangedEvent e) Override this method to add additional redraw triggers!

Methods inherited from class de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualization

getHeight, getWidth, resultAdded, resultRemoved, synchronizedRedraw

Methods inherited from class java.lang.Object

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

Field Detail

ON_DATA

public static final int ON_DATA

Constant to listen for data changes

See Also:

Constant Field Values

ON_SELECTION

public static final int ON_SELECTION

Constant to listen for selection changes

See Also:

Constant Field Values

visFactory

protected final VisFactory visFactory

Visualizer factory

thumb

protected File thumb

The thumbnail file.

pendingThumbnail

protected ThumbnailThread.Task pendingThumbnail

Pending redraw

tresolution

protected int tresolution

Thumbnail resolution

mask

private int mask

The event mask. See ON_DATA, ON_SELECTION

Constructor Detail

ThumbnailVisualization

public ThumbnailVisualization(VisFactory visFactory,
                              VisualizationTask task,
                              int mask)

Constructor.

Parameters:

visFactory - Visualizer Factory to use

task - Task to use

mask - Event mask (for auto-updating)

Method Detail

destroy

public void destroy()

Description copied from interface: Visualization

Destroy the visualization. Called after the elements have been removed from the document. Implementations should remove their listeners etc.

Specified by:

destroy in interface Visualization

Overrides:

destroy in class AbstractVisualization

getLayer

public Element getLayer()

Description copied from interface: Visualization

Get the SVG layer of the given visualization.

Specified by:

getLayer in interface Visualization

Overrides:

getLayer in class AbstractVisualization

Returns:

layer

contextChanged

public void contextChanged(ContextChangedEvent e)

Description copied from interface: ContextChangeListener

Method called on context changes (e.g. projection changes). Usually, this should trigger a redraw!

Specified by:

contextChanged in interface ContextChangeListener

Overrides:

contextChanged in class AbstractVisualization

Parameters:

e - Change event

testRedraw

protected boolean testRedraw(ContextChangedEvent e)

Override this method to add additional redraw triggers!

Overrides:

testRedraw in class AbstractVisualization

Parameters:

e - Event

Returns:

Test result

contentChanged

public void contentChanged(DataStoreEvent e)

Description copied from interface: DataStoreListener

Invoked after objects of the datastore have been updated, inserted or removed in some way.

Specified by:

contentChanged in interface DataStoreListener

Parameters:

e - the update event

incrementalRedraw

protected void incrementalRedraw()

Redraw the visualization (maybe incremental). Optional - by default, it will do a full redraw, which often is faster!

Overrides:

incrementalRedraw in class AbstractVisualization

redraw

protected void redraw()

Perform a full redraw.

Specified by:

redraw in class AbstractVisualization

doThumbnail

public void doThumbnail(Thumbnailer t)

Description copied from interface: ThumbnailThread.Listener

Callback when to (re-)compute the thumbnail.

Specified by:

doThumbnail in interface ThumbnailThread.Listener

Parameters:

t - Thumbnailer to use

refreshThumbnail

protected void refreshThumbnail()

resultChanged

public void resultChanged(Result current)

Description copied from interface: ResultListener

Notify that the current result has changed substantially.

Specified by:

resultChanged in interface ResultListener

Overrides:

resultChanged in class AbstractVisualization

Parameters:

current - Result that has changed.