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package de.lmu.ifi.dbs.elki.visualization.visualizers.visunproj;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2012
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 java.util.Collection;
import org.apache.batik.util.SVGConstants;
import org.w3c.dom.Element;
import de.lmu.ifi.dbs.elki.result.HierarchicalResult;
import de.lmu.ifi.dbs.elki.result.Result;
import de.lmu.ifi.dbs.elki.result.ResultUtil;
import de.lmu.ifi.dbs.elki.result.SettingsResult;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.ClassParameter;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.Parameter;
import de.lmu.ifi.dbs.elki.utilities.pairs.Pair;
import de.lmu.ifi.dbs.elki.visualization.VisualizationTask;
import de.lmu.ifi.dbs.elki.visualization.VisualizerContext;
import de.lmu.ifi.dbs.elki.visualization.style.StyleLibrary;
import de.lmu.ifi.dbs.elki.visualization.svg.SVGPlot;
import de.lmu.ifi.dbs.elki.visualization.svg.SVGUtil;
import de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisFactory;
import de.lmu.ifi.dbs.elki.visualization.visualizers.StaticVisualization;
import de.lmu.ifi.dbs.elki.visualization.visualizers.Visualization;
/**
* Pseudo-Visualizer, that lists the settings of the algorithm-
*
* @author Erich Schubert
*
* @apiviz.stereotype factory
* @apiviz.uses StaticVisualization oneway - - «create»
* @apiviz.has SettingsResult oneway - - visualizes
*/
// TODO: make this a menu item instead of a "visualization"?
public class SettingsVisFactory extends AbstractVisFactory {
/**
* Name for this visualizer.
*/
private static final String NAME = "Settings";
/**
* Constructor, adhering to
* {@link de.lmu.ifi.dbs.elki.utilities.optionhandling.Parameterizable}
*/
public SettingsVisFactory() {
super();
}
@Override
public Visualization makeVisualization(VisualizationTask task) {
SettingsResult sr = task.getResult();
VisualizerContext context = task.getContext();
SVGPlot svgp = task.getPlot();
Collection<Pair<Object, Parameter<?, ?>>> settings = sr.getSettings();
Element layer = svgp.svgElement(SVGConstants.SVG_G_TAG);
// FIXME: use CSSClass and StyleLibrary
int i = 0;
Object last = null;
for(Pair<Object, Parameter<?, ?>> setting : settings) {
if(setting.first != last && setting.first != null) {
String name;
try {
if(setting.first instanceof Class) {
name = ((Class<?>) setting.first).getName();
} else {
name = setting.first.getClass().getName();
}
if(ClassParameter.class.isInstance(setting.first)) {
name = ((ClassParameter<?>) setting.first).getValue().getName();
}
}
catch(NullPointerException e) {
name = "[null]";
}
Element object = svgp.svgText(0, i + 0.7, name);
object.setAttribute(SVGConstants.SVG_STYLE_ATTRIBUTE, "font-size: 0.6; font-weight: bold");
layer.appendChild(object);
i++;
last = setting.first;
}
// get name and value
String name = setting.second.getOptionID().getName();
String value = "[unset]";
try {
if(setting.second.isDefined()) {
value = setting.second.getValueAsString();
}
}
catch(NullPointerException e) {
value = "[null]";
}
Element label = svgp.svgText(0, i + 0.7, name);
label.setAttribute(SVGConstants.SVG_STYLE_ATTRIBUTE, "font-size: 0.6");
layer.appendChild(label);
Element vale = svgp.svgText(7.5, i + 0.7, value);
vale.setAttribute(SVGConstants.SVG_STYLE_ATTRIBUTE, "font-size: 0.6");
layer.appendChild(vale);
// only advance once, since we want these two to be in the same line.
i++;
}
int cols = Math.max(30, (int) (i * task.getHeight() / task.getWidth()));
int rows = i;
final double margin = context.getStyleLibrary().getSize(StyleLibrary.MARGIN);
final String transform = SVGUtil.makeMarginTransform(task.getWidth(), task.getHeight(), cols, rows, margin / StyleLibrary.SCALE);
SVGUtil.setAtt(layer, SVGConstants.SVG_TRANSFORM_ATTRIBUTE, transform);
return new StaticVisualization(task, layer);
}
@Override
public void processNewResult(HierarchicalResult baseResult, Result newResult) {
Collection<SettingsResult> settingsResults = ResultUtil.filterResults(newResult, SettingsResult.class);
for(SettingsResult sr : settingsResults) {
final VisualizationTask task = new VisualizationTask(NAME, sr, null, this);
task.width = 1.0;
task.height = 1.0;
task.put(VisualizationTask.META_LEVEL, VisualizationTask.LEVEL_STATIC);
baseResult.getHierarchy().add(sr, task);
}
}
@Override
public boolean allowThumbnails(VisualizationTask task) {
return false;
}
}
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