org.biojava.bio.gui.sequence.LineInfo Maven / Gradle / Ivy
/*
* BioJava development code
*
* This code may be freely distributed and modified under the
* terms of the GNU Lesser General Public Licence. This should
* be distributed with the code. If you do not have a copy,
* see:
*
* http://www.gnu.org/copyleft/lesser.html
*
* Copyright for this code is held jointly by the individual
* authors. These should be listed in @author doc comments.
*
* For more information on the BioJava project and its aims,
* or to join the biojava-l mailing list, visit the home page
* at:
*
* http://www.biojava.org/
*
*/
package org.biojava.bio.gui.sequence;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* Encapsulates the rendering info for a single line of the display.
*
* The single line of info may be divided into multiple regions, each rendered
* by their own SequenceRenderer. It is the job of this class to cache the
* information about how much space each one wants, and how much space they want
* in total. A SequenceRenderer or SequencePanel that delegates rendering to
* multiple child SequenceRenderer instances may want to use these objects
* for storing this information about each row they are responsible for.
*
* @author Matthew Pocock
*/
public class LineInfo {
private Map rendererToDepth = new HashMap();
private double totalDepth = 0.0;
public double getDepth(SequenceRenderer r) {
Double depth = (Double) rendererToDepth.get(r);
return depth.doubleValue();
}
public void setDepth(SequenceRenderer r, double depth) {
totalDepth = Double.NaN;
rendererToDepth.put(r, new Double(depth));
}
public double getTotalDepth() {
if(Double.isNaN(totalDepth)) {
totalDepth = 0.0;
for(Iterator i = rendererToDepth.values().iterator(); i.hasNext(); ) {
Double d = (Double) i.next(); // should never be null
totalDepth += d.doubleValue();
}
}
return totalDepth;
}
}