Java tutorial
/* This file is part of Wattzap Community Edition. * * Wattzap Community Edtion 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 3 of the License, or * (at your option) any later version. * * Wattzap Community Edition 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 Wattzap. If not, see <http://www.gnu.org/licenses/>. */ package com.wattzap.view.graphs; import java.awt.BorderLayout; import java.awt.Color; import java.text.FieldPosition; import java.text.NumberFormat; import java.text.ParsePosition; import java.util.concurrent.TimeUnit; import javax.swing.JPanel; import org.apache.log4j.LogManager; import org.apache.log4j.Logger; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.LogAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.ValueMarker; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import com.wattzap.model.UserPreferences; /* * Mean Maximal Power Graph * * @author David George (c) Copyright 2014 * @date 18 April 2014 */ public class MMPGraph extends JPanel { ValueMarker marker = null; XYPlot plot; private ChartPanel chartPanel = null; private final UserPreferences userPrefs = UserPreferences.INSTANCE; private static Logger logger = LogManager.getLogger("MMPGraph"); public MMPGraph(XYSeries series) { super(); NumberAxis yAxis = new NumberAxis(userPrefs.messages.getString("poWtt")); yAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); double maxY = series.getMaxY(); yAxis.setRange(0, maxY + 20); yAxis.setTickLabelPaint(Color.white); yAxis.setLabelPaint(Color.white); LogAxis xAxis = new LogAxis(userPrefs.messages.getString("time")); xAxis.setTickLabelPaint(Color.white); xAxis.setBase(4); xAxis.setAutoRange(false); xAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); xAxis.setRange(1, series.getMaxX() + 500); xAxis.setNumberFormatOverride(new NumberFormat() { @Override public StringBuffer format(double number, StringBuffer toAppendTo, FieldPosition pos) { long millis = (long) number * 1000; if (millis >= 60000) { return new StringBuffer(String.format("%d m %d s", TimeUnit.MILLISECONDS.toMinutes((long) millis), TimeUnit.MILLISECONDS.toSeconds((long) millis) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes((long) millis)))); } else { return new StringBuffer(String.format("%d s", TimeUnit.MILLISECONDS.toSeconds((long) millis) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes((long) millis)))); } } @Override public StringBuffer format(long number, StringBuffer toAppendTo, FieldPosition pos) { return new StringBuffer(String.format("%s", number)); } @Override public Number parse(String source, ParsePosition parsePosition) { return null; } }); XYPlot plot = new XYPlot(new XYSeriesCollection(series), xAxis, yAxis, new XYLineAndShapeRenderer(true, false)); JFreeChart chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, plot, false); chart.setBackgroundPaint(Color.gray); plot = chart.getXYPlot(); plot.setBackgroundPaint(Color.darkGray); /*plot.setDomainGridlinePaint(Color.lightGray); plot.setRangeGridlinePaint(Color.lightGray);*/ ValueAxis domainAxis = plot.getDomainAxis(); domainAxis.setTickLabelPaint(Color.white); domainAxis.setLabelPaint(Color.white); chartPanel = new ChartPanel(chart); chartPanel.setSize(100, 800); chartPanel.setFillZoomRectangle(true); chartPanel.setMouseWheelEnabled(true); chartPanel.setBackground(Color.gray); setLayout(new BorderLayout()); add(chartPanel, BorderLayout.CENTER); setBackground(Color.black); chartPanel.revalidate(); setVisible(true); } private static final long serialVersionUID = 1L; }