package de.lmu.ifi.dbs.elki.visualization.visualizers;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2011
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.visualization.VisualizationTask;
import de.lmu.ifi.dbs.elki.visualization.visualizers.thumbs.ThumbnailVisualization;
/**
* Abstract superclass for Visualizers (aka: Visualization Factories).
*
* @author Remigius Wojdanowski
*
* @apiviz.uses ThumbnailVisualization oneway - - «create»
*/
public abstract class AbstractVisFactory implements VisFactory {
/**
* Constructor.
*/
protected AbstractVisFactory() {
super();
}
@Override
public Visualization makeVisualizationOrThumbnail(VisualizationTask task) {
// Is this a thumbnail request?
Boolean isthumb = task.get(VisualizationTask.THUMBNAIL, Boolean.class);
if (isthumb != null && isthumb.booleanValue() && allowThumbnails(task)) {
return new ThumbnailVisualization(this, task, 0);
}
return makeVisualization(task);
}
@Override
abstract public Visualization makeVisualization(VisualizationTask task);
/**
* Test whether to do a thumbnail or a full rendering.
*
* Override this with "false" to disable thumbnails!
*
* @param task Task requested
*/
public boolean allowThumbnails(VisualizationTask task) {
return true;
}
}