Java tutorial
/* TrendView.java * * Copyright (C) 2014 Florian Brosch * * Based on work from Andreas Mauczka * * This program is developed as part of the research project * "Lexical Repository Analyis" which is part of the PhD thesis * "Design and evaluation for identification, mapping and profiling * of medium sized software chunks" by Andreas Mauczka at * INSO - University of Technology Vienna. For questions in regard * to the research project contact andreas.mauczka(at)inso.tuwien.ac.at * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License 2.0 * as published by the Free Software Foundation. * * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Author: * Florian Brosch <flo.brosch@gmail.com> */ package at.ac.tuwien.inso.subcat.ui.widgets; import java.awt.Paint; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Collection; import java.util.LinkedList; import java.util.List; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.SashForm; import org.eclipse.swt.custom.ScrolledComposite; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.labels.StandardCategoryToolTipGenerator; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.CombinedDomainCategoryPlot; import org.jfree.chart.plot.DrawingSupplier; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.chart.renderer.category.LineAndShapeRenderer; import org.jfree.data.category.DefaultCategoryDataset; import at.ac.tuwien.inso.subcat.config.DropDownConfig; import at.ac.tuwien.inso.subcat.config.OptionListConfig; import at.ac.tuwien.inso.subcat.config.TrendChartPlotConfig; import at.ac.tuwien.inso.subcat.model.DropDownData; import at.ac.tuwien.inso.subcat.model.OptionListConfigData; import at.ac.tuwien.inso.subcat.model.TrendChartConfigData; import at.ac.tuwien.inso.subcat.model.TrendChartData; import at.ac.tuwien.inso.subcat.ui.events.TrendChartListener; public class TrendChart extends Composite { private LinkedList<TrendChartListener> listeners = new LinkedList<TrendChartListener>(); private TimeChartControlPanel<SelectedChart> timeChart; private CategoryPlot trendPlot; private DefaultCategoryDataset dataset; private CategoryPlot sizePlot; private CombinedDomainCategoryPlot plot; private DrawingSupplier drawingSupplier; private ScrolledComposite scrolledComposite; private Composite optionComposite; private int boxWeight; private SelectionListener boxListener; private SelectionListener comboListener; public enum SelectedChart { LINE, BAR, BOTH } public static class ChartIdentifier implements Comparable<ChartIdentifier> { private final TrendChartPlotConfig topConfig; private final OptionListConfig leftConfig; private final int left; private final Combo top; private final Integer weight; private Paint paint; public ChartIdentifier(TrendChartPlotConfig topConfig, Combo top, OptionListConfig leftConfig, int left, int weight) { assert (top != null); assert (topConfig != null); assert (leftConfig != null); this.topConfig = topConfig; this.leftConfig = leftConfig; this.top = top; this.left = left; this.weight = weight; } @Override public int compareTo(ChartIdentifier o) { assert (o != null); return weight.compareTo(o.weight); } public DropDownData getDropDownData() { DropDownData dropData = (DropDownData) top.getData(); assert (dropData != null); return dropData; } public int getLeftId() { return left; } public int getTopId() { return getDropDownData().getData().get(top.getSelectionIndex()).id; } public Paint getPaint() { return paint; } public DropDownConfig getTopConfig() { return topConfig; } public OptionListConfig getLeftConfig() { return leftConfig; } } // // GUI: // public TrendChart(Composite parent, int style) { super(parent, style); initCharts(); setLayout(new FillLayout()); SashForm sashForm = new SashForm(this, SWT.VERTICAL); timeChart = new TimeChartControlPanel<SelectedChart>(sashForm, SWT.BORDER); timeChart.addChartSelectionEntry("Trend View", SelectedChart.LINE); timeChart.addChartSelectionEntry("Bar View", SelectedChart.BAR); timeChart.addChartSelectionEntry("Both", SelectedChart.BOTH); JFreeChart chart = createChart(SelectedChart.LINE); setChart(chart); scrolledComposite = new ScrolledComposite(sashForm, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER); scrolledComposite.setLayout(new FillLayout()); optionComposite = new Composite(scrolledComposite, SWT.NONE); optionComposite.setLayout(new GridLayout(3, false)); scrolledComposite.setContent(optionComposite); scrolledComposite.setMinSize(optionComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT)); scrolledComposite.setExpandVertical(true); scrolledComposite.setExpandHorizontal(true); scrolledComposite.setAlwaysShowScrollBars(false); // Signals: boxListener = new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { Button button = (Button) e.getSource(); ChartIdentifier boxData = (ChartIdentifier) button.getData(); assert (boxData != null); boolean checked = button.getSelection(); if (boxData.paint == null) { boxData.paint = drawingSupplier.getNextPaint(); } if (checked) { java.awt.Color paintColor = (java.awt.Color) boxData.paint; Color color = new Color(null, paintColor.getRed(), paintColor.getGreen(), paintColor.getBlue()); button.setBackground(color); } else { button.setBackground(null); } for (TrendChartListener listener : listeners) { listener.optionSelected(boxData, checked); } } @Override public void widgetDefaultSelected(SelectionEvent e) { } }; comboListener = new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { Combo combo = (Combo) e.getSource(); DropDownData data = (DropDownData) combo.getData(); assert (data != null); DropDownConfig config = data.getConfig(); for (TrendChartListener listener : listeners) { listener.comboChanged(config); } } @Override public void widgetDefaultSelected(SelectionEvent e) { } }; } private void initCharts() { dataset = new DefaultCategoryDataset(); // XY:s NumberAxis rangeAxis1 = new NumberAxis("Values"); rangeAxis1.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); LineAndShapeRenderer renderer1 = new LineAndShapeRenderer(); renderer1.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator()); trendPlot = new CategoryPlot(dataset, null, rangeAxis1, renderer1); trendPlot.setDomainGridlinesVisible(true); // Box: NumberAxis rangeAxis2 = new NumberAxis("Values"); rangeAxis2.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); BarRenderer renderer2 = new BarRenderer(); renderer2.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator()); sizePlot = new CategoryPlot(dataset, null, rangeAxis2, renderer2); sizePlot.setDomainGridlinesVisible(true); } public JFreeChart createChart(SelectedChart chart) { assert (chart != null); CategoryAxis domainAxis = new CategoryAxis("Date"); plot = new CombinedDomainCategoryPlot(domainAxis); if (drawingSupplier == null) { drawingSupplier = plot.getDrawingSupplier(); } else { plot.setDrawingSupplier(drawingSupplier); } switch (chart) { case LINE: plot.add(trendPlot, 1); break; case BAR: plot.add(sizePlot, 1); break; case BOTH: plot.add(trendPlot, 1); plot.add(sizePlot, 2); break; default: assert (false); } JFreeChart result = new JFreeChart(null, null, plot, true); result.removeLegend(); return result; } private void fixChartColours() { for (int i = 0; i < dataset.getRowCount(); i++) { sizePlot.getRenderer().setSeriesPaint(i, ((ChartIdentifier) dataset.getRowKey(i)).paint); trendPlot.getRenderer().setSeriesPaint(i, ((ChartIdentifier) dataset.getRowKey(i)).paint); } } public void addConfiguration(TrendChartConfigData config, List<String> flags) { assert (config != null); ArrayList<Combo> combos = new ArrayList<Combo>(); // Title Row: Label lblGrpTitle = new Label(optionComposite, SWT.NONE); lblGrpTitle.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); Helper.setLabelStyle(lblGrpTitle, SWT.BOLD); lblGrpTitle.setText(config.getName()); Composite topOptions = new Composite(optionComposite, SWT.NONE); topOptions.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1)); topOptions.setLayout(new GridLayout(config.getDropDowns().size(), true)); for (DropDownData dropData : config.getDropDowns()) { if (dropData.getConfig().show(flags)) { Combo comboDropDown = new Combo(topOptions, SWT.DROP_DOWN | SWT.BORDER | SWT.READ_ONLY); comboDropDown.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, false, 1, 1)); comboDropDown.setData(dropData); combos.add(comboDropDown); for (DropDownData.Pair data : dropData.getData()) { comboDropDown.add(data.name); } comboDropDown.select(0); comboDropDown.addSelectionListener(this.comboListener); } } // Separator: Helper.separator(optionComposite, 3); // Left Option Labels: new Label(optionComposite, SWT.NONE); Composite leftOptions = new Composite(optionComposite, SWT.NONE); leftOptions.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1)); leftOptions.setLayout(new GridLayout(1, true)); for (OptionListConfigData.Pair pair : config.getOptionList().getData()) { Label lblOpt = new Label(leftOptions, SWT.NONE); lblOpt.setText(pair.name); } // Check Boxes: Composite selectionComposite = new Composite(optionComposite, SWT.NONE); selectionComposite.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1)); selectionComposite.setLayout(new GridLayout(combos.size(), true)); OptionListConfig leftConfig = config.getOptionList().getConfig(); for (OptionListConfigData.Pair pair : config.getOptionList().getData()) { int x = 0; for (Combo combo : combos) { TrendChartPlotConfig topConfig = (TrendChartPlotConfig) config.getDropDowns().get(x).getConfig(); Button button = new Button(selectionComposite, SWT.CHECK); button.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, false, 1, 1)); button.setData(new ChartIdentifier(topConfig, combo, leftConfig, pair.id, boxWeight++)); button.addSelectionListener(boxListener); x++; } } // Scrolling area size update: scrolledComposite.setMinSize(optionComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT)); } // // API: // public void setYearRange(int start, int end) { timeChart.setYearRange(start, end); } @SuppressWarnings("unchecked") public List<ChartIdentifier> getSelectedIdentifiers() { return (List<ChartIdentifier>) dataset.getRowKeys(); } public List<ChartIdentifier> getSelectedIdentifiers(DropDownConfig config) { assert (config != null); LinkedList<ChartIdentifier> result = new LinkedList<ChartIdentifier>(); List<ChartIdentifier> selection = getSelectedIdentifiers(); for (ChartIdentifier id : selection) { if (id.getTopConfig() == config) { result.add(id); } } return result; } public Integer getSelectedYear() { return timeChart.getSelectedYear(); } public void saveChartAsJPEG(File file) throws IOException { timeChart.saveChartAsJPEG(file, 800, 600); } public void saveChartAsJPEG(File file, int width, int height) throws IOException { timeChart.saveChartAsJPEG(file, width, height); } public void saveChartAsPNG(File file) throws IOException { timeChart.saveChartAsJPEG(file, 800, 600); } public void saveChartAsPNG(File file, int width, int height) throws IOException { timeChart.saveChartAsPNG(file, width, height); } public boolean hasNextChart() { return timeChart.hasNextChart(); } public boolean hasPrevChart() { return timeChart.hasPrevChart(); } public SelectedChart getSelectedChart() { return timeChart.getSelectedChart(); } public void setChart(JFreeChart chart) { timeChart.setChart(chart); // Force the view to update the chart: chart.clearSubtitles(); } // // Data: // public void addData(ChartIdentifier identifier, TrendChartData data) { assert (identifier != null); assert (data != null); for (int i = 0; i < 12; i++) { dataset.addValue(data.getData()[i], identifier, TimeChartControlPanel.MONTHS[i]); } fixChartColours(); } public void removeData(ChartIdentifier chart) { assert (chart != null); dataset.removeRow(chart); fixChartColours(); } public void removeData(Collection<ChartIdentifier> charts) { assert (charts != null); for (ChartIdentifier id : charts) { removeData(id); } } // // Listeners: // public void addTrendViewListener(TrendChartListener listener) { assert (listener != null); this.timeChart.addPanelListener(listener); this.listeners.add(listener); } public void removeTrendViewListener(TrendChartListener listener) { assert (listener != null); this.timeChart.removePanelListener(listener); this.listeners.remove(listener); } // // Test Method: // /* public static void main (String[] args) { // Option Configuration: Project proj = new Project (null, new Date (), "My Project", "", ""); LinkedList<NamedContainer> rows = new LinkedList<NamedContainer> (); rows.add (new Category (1, proj, "Foo")); rows.add (new Category (2, proj, "Bar")); rows.add (new Category (3, proj, "Baz")); // UI: Display display = new Display (); Shell shell = new Shell (display); shell.setLayout (new FillLayout ()); TrendView view = new TrendView (shell, SWT.NONE); shell.open (); while (!shell.isDisposed ()) { if (!display.readAndDispatch ()) { display.sleep (); } } display.dispose(); } */ }