Java tutorial
/**************************************************************************** The Super Analyzer Copyright (C) 2009 Tom Bulatewicz, Nosleep Software This program 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. This program 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 this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ***************************************************************************/ package net.nosleep.superanalyzer.analysis.views; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.io.File; import java.io.IOException; import java.util.Collections; import java.util.Comparator; import java.util.Enumeration; import java.util.Hashtable; import java.util.Vector; import javax.swing.JPanel; import net.nosleep.superanalyzer.analysis.Analysis; import net.nosleep.superanalyzer.analysis.Genre; import net.nosleep.superanalyzer.panels.HomePanel; import net.nosleep.superanalyzer.util.Misc; import net.nosleep.superanalyzer.util.Theme; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.ChartUtilities; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.AxisLocation; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer3D; import org.jfree.chart.renderer.category.CategoryItemRenderer; import org.jfree.data.category.DefaultCategoryDataset; public class GenreView implements IStatisticView { public static final int Id = 2; private Analysis _analysis; private JFreeChart _chart; private ChartPanel _chartPanel; private DefaultCategoryDataset _dataset; public GenreView(Analysis analysis) { _analysis = analysis; createPanel(); } private void createPanel() { _dataset = new DefaultCategoryDataset(); createChart(); refreshDataset(); _chartPanel = new ChartPanel(_chart); } public JPanel getPanel(HomePanel homePanel) { JPanel panel = new JPanel(new BorderLayout()); JPanel headerPanel = homePanel.createHeaderPanel(null, _analysis.tagsAreIncomplete()); panel.add(headerPanel, BorderLayout.NORTH); panel.add(_chartPanel, BorderLayout.CENTER); return panel; } private class GenreItem { public String GenreName; public int Count; public GenreItem(String genreName, int count) { GenreName = genreName; Count = count; } } private class GenreItemComparator implements Comparator { public int compare(Object o1, Object o2) { GenreItem s1 = (GenreItem) o1; GenreItem s2 = (GenreItem) o2; return s1.GenreName.compareTo(s2.GenreName); } public boolean equals(Object o1, Object o2) { GenreItem s1 = (GenreItem) o1; GenreItem s2 = (GenreItem) o2; if (s1.GenreName.equalsIgnoreCase(s2.GenreName)) return true; else return false; } } public void createChart() { _chart = ChartFactory.createBarChart3D(Misc.getString("GENRES"), // chart // title Misc.getString("GENRE"), // domain axis label Misc.getString("SONG_COUNT"), // range axis label _dataset, // data PlotOrientation.HORIZONTAL, // orientation false, // include legend true, // tooltips? false // URLs? ); _chart.addSubtitle(HomePanel.createSubtitle(Misc.getString("GENRES_SUBTITLE"))); CategoryPlot plot = (CategoryPlot) _chart.getPlot(); plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT); NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); ChartUtilities.applyCurrentTheme(_chart); Misc.formatChart(plot); CategoryItemRenderer renderer = plot.getRenderer(); BarRenderer3D barRenderer = (BarRenderer3D) renderer; barRenderer.setWallPaint(Color.white); barRenderer.setSeriesPaint(0, Theme.getColorSet()[1]); } private void refreshDataset() { Hashtable genres = _analysis.getHash(Analysis.KIND_GENRE); Vector items = new Vector(); Enumeration e = genres.keys(); while (e.hasMoreElements()) { String genreName = (String) e.nextElement(); Genre genre = (Genre) genres.get(genreName); items.add(new GenreItem(genreName, genre.getStats().getTrackCount())); } Collections.sort(items, new GenreItemComparator()); for (int i = 0; i < items.size(); i++) { GenreItem item = (GenreItem) items.elementAt(i); _dataset.addValue(item.Count, Misc.getString("GENRE"), item.GenreName); } } public boolean canSaveImage() { return true; } public void saveImage(File file, Dimension d) throws IOException { if (d == null) d = new Dimension(_chartPanel.getWidth(), _chartPanel.getHeight()); ChartUtilities.saveChartAsPNG(file, _chart, d.width, d.height); } public int getId() { return Id; } public void saveImageExtra(File file, Dimension d) throws IOException { } public void willDisappear() { } }