/*
Copyright 2008-2010 Gephi
Authors : Jeremy Subtil <jeremy.subtil@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.preview;
import java.awt.Font;
import java.util.ArrayList;
import org.gephi.graph.api.Edge;
import org.gephi.preview.api.DirectedEdge;
import org.gephi.preview.api.EdgeArrow;
import org.gephi.preview.api.EdgeMiniLabel;
import org.gephi.preview.api.supervisors.DirectedEdgeSupervisor;
import org.gephi.preview.supervisors.DirectedEdgeSupervisorImpl;
import org.gephi.preview.supervisors.EdgeSupervisorImpl;
/**
* Implementation of a preview directed edge.
*
* @author Jérémy Subtil <jeremy.subtil@gephi.org>
*/
public abstract class DirectedEdgeImpl extends EdgeImpl implements DirectedEdge {
protected final ArrayList<EdgeArrow> arrows = new ArrayList<EdgeArrow>();
protected final ArrayList<EdgeMiniLabel> miniLabels = new ArrayList<EdgeMiniLabel>();
/**
* Constructor.
*
* @param parent the parent graph of the edge
* @param thickness the edge's thickness
* @param node1 the edge's node 1
* @param node2 the edge's node 2
* @param label the edge's label
* @param labelSize the edge's label size
*/
protected DirectedEdgeImpl(GraphImpl parent, Edge edge, float thickness, NodeImpl node1, NodeImpl node2, String label, float labelSize) {
super(parent, edge, thickness, node1, node2, label, labelSize);
// generate arrows
arrows.add(new EdgeArrowB1Out(this));
arrows.add(new EdgeArrowB2In(this));
// generate mini-labels
if (node2.hasLabel()) {
miniLabels.add(new EdgeMiniLabelB1(this));
}
if (node1.hasLabel()) {
miniLabels.add(new EdgeMiniLabelB2(this));
}
}
/**
* Returns the directed edge supervisor.
*
* This method is overridden by child classes to return the right
* supervisor.
*
* @return the directed edge supervisor
*/
public abstract DirectedEdgeSupervisorImpl getDirectedEdgeSupervisor();
public Iterable<EdgeArrow> getArrows() {
return arrows;
}
public Iterable<EdgeMiniLabel> getMiniLabels() {
return miniLabels;
}
/**
* Returns the edge mini-label font.
*
* @return the edge mini-label font
*/
public Font getMiniLabelFont() {
return getDirectedEdgeSupervisor().getMiniLabelFont();
}
public Boolean showArrows() {
DirectedEdgeSupervisor supervisor = getDirectedEdgeSupervisor();
float minlength = node1.getRadius() + node2.getRadius() + 2 * supervisor.getArrowAddedRadius() + 2 * supervisor.getArrowSize() + 30;
return supervisor.getShowArrowsFlag() && length >= minlength;
}
public Boolean showMiniLabels() {
DirectedEdgeSupervisor supervisor = getDirectedEdgeSupervisor();
int labelSize = supervisor.getShortenMiniLabelsFlag() ? supervisor.getMiniLabelMaxChar() : 10;
float minlength = node1.getRadius() + node2.getRadius() + 2 * 0.65f * labelSize * supervisor.getMiniLabelFont().getSize() + 30;
return supervisor.getShowMiniLabelsFlag() && length >= minlength;
}
@Override
protected EdgeSupervisorImpl getEdgeSupervisor() {
return getDirectedEdgeSupervisor();
}
}