net.sf.mzmine.modules.visualization.neutralloss.NeutralLossDataPointRenderer.java Source code

Introduction

Here is the source code for net.sf.mzmine.modules.visualization.neutralloss.NeutralLossDataPointRenderer.java

Source

/*
 * Copyright 2006-2014 The MZmine 2 Development Team
 * 
 * This file is part of MZmine 2.
 * 
 * MZmine 2 is free software; you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 * 
 * MZmine 2 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * MZmine 2; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
 * Fifth Floor, Boston, MA 02110-1301 USA
 */

package net.sf.mzmine.modules.visualization.neutralloss;

import java.awt.AlphaComposite;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;

import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.CrosshairState;
import org.jfree.chart.plot.PlotRenderingInfo;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRendererState;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.xy.XYDataset;

/**
 * Renderer which highlights selected points
 */
class NeutralLossDataPointRenderer extends XYLineAndShapeRenderer {

    private AlphaComposite alphaComp, alphaCompOriginal;

    public NeutralLossDataPointRenderer(boolean lines, boolean shapes) {
        super(lines, shapes);
    }

    public void setTransparency(float transparency) {
        if ((transparency > 1.0) || (transparency < 0))
            transparency = 1.0f;
        int type = AlphaComposite.SRC_OVER;
        alphaComp = (AlphaComposite.getInstance(type, transparency));
        alphaCompOriginal = (AlphaComposite.getInstance(type, 1.0f));
    }

    public void drawItem(Graphics2D g2, XYItemRendererState state, Rectangle2D dataArea, PlotRenderingInfo info,
            XYPlot plot, ValueAxis domainAxis, ValueAxis rangeAxis, XYDataset dataset, int series, int item,
            CrosshairState crosshairState, int pass) {

        if (series > 0) {
            g2.setComposite(alphaComp);
        } else if (series == 0) {
            g2.setComposite(alphaCompOriginal);
        }

        super.drawItem(g2, state, dataArea, info, plot, domainAxis, rangeAxis, dataset, series, item,
                crosshairState, pass);

    }

}