net.bioclipse.chart.ScatterPlotRenderer.java Source code

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Here is the source code for net.bioclipse.chart.ScatterPlotRenderer.java

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/* ***************************************************************************
 * Copyright (c) 2008 Bioclipse Project
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 *****************************************************************************/

/**
 * 
 */
package net.bioclipse.chart;

import java.awt.Paint;
import java.awt.Color;
import java.util.Iterator;
import java.util.List;
import java.util.Vector;

import net.bioclipse.model.ChartSelection;
import net.bioclipse.model.PlotPointData;

import java.awt.Point;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;

/** ScatterPlotRenderer is responsible for rendering scatter plots in ChartUtils
 * It's function is to highlight points selected by the user
 * @author EskilA
 *
 */
public class ScatterPlotRenderer extends XYLineAndShapeRenderer {
    /**
     * 
     */
    private static final long serialVersionUID = -3905406232146503788L;
    private List<Point> markedPoints;

    /**
     * Marks a point for highlighting
     * @param series series in the dataset
     * @param index index of the selected point
     * @return <code>true</code> if the point was marked, <code>false</code> otherwise, for example if the point was marked already.
     * @see XYDataSet
     */
    public boolean addMarkedPoint(int index, int series) {
        Point p = new Point(index, series);
        if (!markedPoints.contains(p)) {
            markedPoints.add(p);
            return true;
        }
        return false;
    }

    public boolean addMarkedPoint(Point p) {
        if (!markedPoints.contains(p)) {
            markedPoints.add(p);
            return true;
        }
        return false;
    }

    /**
     * 
     * @param p point to unmark
     * @return true if point was removed from collection, false if point was not in collection
     */
    public boolean removeMarkedPoint(Point p) {
        if (markedPoints.contains(p)) {
            markedPoints.remove(p);
            return true;
        }
        return false;
    }

    /**
     * Removes all marked points
     */
    public void clearMarkedPoints() {
        markedPoints.clear();
    }

    private void initialize() {
        markedPoints = new Vector<Point>();
    }

    public ScatterPlotRenderer() {
        super(true, true);
        initialize();
    }

    public ScatterPlotRenderer(boolean lines, boolean shapes) {
        super(lines, shapes);
        initialize();
    }

    @Override
    public Paint getItemPaint(int row, int column) {
        Iterator<Point> iter = markedPoints.iterator();
        while (iter.hasNext()) {
            Point p = iter.next();
            if (p != null && p.x == column && p.y == row) {
                return Color.orange;
            }
        }

        return super.getItemPaint(row, column);
    }

}