/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org
This file is part of Gephi.
Gephi 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.
Gephi 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 Gephi. If not, see <http://www.gnu.org/licenses/>.
*/
package org.gephi.filters.plugin.hierarchy;
import javax.swing.Icon;
import javax.swing.JPanel;
import org.gephi.filters.api.FilterLibrary;
import org.gephi.filters.spi.Category;
import org.gephi.filters.spi.Filter;
import org.gephi.filters.spi.FilterBuilder;
import org.gephi.filters.spi.FilterProperty;
import org.gephi.filters.spi.NodeFilter;
import org.gephi.graph.api.Graph;
import org.gephi.graph.api.HierarchicalGraph;
import org.gephi.graph.api.Node;
import org.openide.util.Lookup;
import org.openide.util.NbBundle;
import org.openide.util.lookup.ServiceProvider;
/**
*
* @author Mathieu Bastian
*/
//@ServiceProvider(service = FilterBuilder.class)
public class LevelBuilder implements FilterBuilder {
public Category getCategory() {
return FilterLibrary.HIERARCHY;
}
public String getName() {
return NbBundle.getMessage(LevelBuilder.class, "LevelBuilder.name");
}
public Icon getIcon() {
return null;
}
public String getDescription() {
return null;
}
public LevelFilter getFilter() {
return new LevelFilter();
}
public JPanel getPanel(Filter filter) {
LevelUI ui = Lookup.getDefault().lookup(LevelUI.class);
if (ui != null) {
return ui.getPanel((LevelFilter) filter);
}
return null;
}
public void destroy(Filter filter) {
}
public static class LevelFilter implements NodeFilter {
private Integer level = 0;
private int height;
public boolean init(Graph graph) {
HierarchicalGraph hg = (HierarchicalGraph) graph;
height = hg.getHeight();
return true;
}
public boolean evaluate(Graph graph, Node node) {
HierarchicalGraph hg = (HierarchicalGraph) graph;
return hg.getLevel(node) == level.intValue();
}
public void finish() {
}
public int getHeight() {
return height;
}
public String getName() {
return NbBundle.getMessage(LevelBuilder.class, "LevelBuilder.name");
}
public FilterProperty[] getProperties() {
try {
return new FilterProperty[]{
FilterProperty.createProperty(this, Integer.class, "level")
};
} catch (Exception ex) {
ex.printStackTrace();
}
return new FilterProperty[0];
}
public Integer getLevel() {
return level;
}
public void setLevel(Integer level) {
this.level = level;
}
}
}