Java tutorial
/* * 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.scatterplot.scatterplotchart; import java.awt.AlphaComposite; import java.awt.Color; import java.awt.Graphics2D; import java.awt.Shape; import java.awt.geom.Rectangle2D; import org.jfree.chart.labels.XYItemLabelGenerator; 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; public class DiagonalLineRenderer extends XYLineAndShapeRenderer { // plot colors for diagonal lines private static final Color[] plotDiagonalColors = { new Color(165, 42, 42), Color.BLACK, new Color(165, 42, 42) }; private static final Shape diagonalPointsShape = new Rectangle2D.Float(-3, -3, 6, 6); public static final AlphaComposite alpha = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f); public DiagonalLineRenderer() { super(true, true); setBaseShapesFilled(true); setDrawOutlines(true); setUseFillPaint(true); for (int i = 0; i < plotDiagonalColors.length; i++) { setSeriesShape(i, diagonalPointsShape); setSeriesPaint(i, plotDiagonalColors[i]); setSeriesFillPaint(i, plotDiagonalColors[i]); } setBaseShapesVisible(true); XYItemLabelGenerator diagonallabelGenerator = new DiagonalLineLabelGenerator(); setBaseItemLabelGenerator(diagonallabelGenerator); setBaseItemLabelsVisible(true); } public XYItemRendererState initialise(Graphics2D g2, Rectangle2D dataArea, XYPlot plot, XYDataset dataset, PlotRenderingInfo info) { // Set transparency g2.setComposite(alpha); return super.initialise(g2, dataArea, plot, dataset, info); } }