/*
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 org.gephi.preview.api.Color;
import org.gephi.preview.api.EdgeColorizerClient;
import org.gephi.preview.api.EdgeLabel;
import org.gephi.preview.api.util.Holder;
import org.gephi.preview.updaters.LabelFontAdjusterClient;
import org.gephi.preview.util.Vector;
/**
* Implementation of an edge label.
*
* @author Jérémy Subtil <jeremy.subtil@gephi.org>
*/
public class EdgeLabelImpl extends AbstractEdgeLabel
implements EdgeLabel, LabelFontAdjusterClient {
private final EdgeImpl parent;
private final float labelSizeFactor;
private Font font;
/**
* Constructor.
*
* @param parent the parent edge of the edge label
* @param value the value of the edge label
* @param labelSize the size of the edge label
*/
public EdgeLabelImpl(EdgeImpl parent, String value, float labelSize) {
super(value);
this.parent = parent;
labelSizeFactor = labelSize;
genPosition();
}
/**
* Generates the edge label's position.
*/
public void genPosition() {
// relative position from the first boundary
Vector positionVector = new Vector(parent.getNode1().getPosition());
// move it to the middle of the edge
Vector semiLength = new Vector(parent.getDirection());
semiLength.mult(parent.getLength() / 2);
positionVector.add(semiLength);
position = new PointImpl(positionVector);
// set label position above the parent edge
putPositionAboveEdge(parent.getDirection(), parent.getThickness());
}
public Font getFont() {
return font;
}
public Font getBaseFont() {
return parent.getBaseLabelFont();
}
public float getSizeFactor() {
return labelSizeFactor;
}
public Float getAngle() {
return parent.getAngle();
}
public EdgeColorizerClient getParentEdge() {
return parent;
}
public Holder<Color> getParentColorHolder() {
return parent.getColorHolder();
}
public void setFont(Font font) {
this.font = font;
}
}