Java tutorial
/* * Copyright (C) 2011 Andrea Schweer * * This file is part of the Digital Parrot. * * The Digital Parrot is free software; you can redistribute it and/or modify * it under the terms of the Eclipse Public License as published by the Eclipse * Foundation or its Agreement Steward, either version 1.0 of the License, or * (at your option) any later version. * * The Digital Parrot 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 Eclipse Public License for * more details. * * You should have received a copy of the Eclipse Public License along with the * Digital Parrot. If not, see http://www.eclipse.org/legal/epl-v10.html. * */ package net.schweerelos.parrot; import java.awt.BorderLayout; import java.awt.Component; import java.awt.Dialog; import java.awt.Insets; import java.awt.Point; import java.awt.Toolkit; import java.awt.Window; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ComponentAdapter; import java.awt.event.ComponentEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Properties; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JTabbedPane; import javax.swing.JToggleButton; import javax.swing.JToolBar; import javax.swing.KeyStroke; import javax.swing.SwingUtilities; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; import net.schweerelos.parrot.model.NodeWrapper; import net.schweerelos.parrot.model.ParrotModel; import net.schweerelos.parrot.model.ParrotModelFactory; import net.schweerelos.parrot.model.ParrotModelFactory.Style; import net.schweerelos.parrot.ui.MainViewComponent; import net.schweerelos.parrot.ui.NavigatorComponent; import net.schweerelos.parrot.ui.ParrotStateListener; import net.schweerelos.parrot.ui.PickListener; import net.schweerelos.parrot.ui.UnknownStyleException; import net.schweerelos.parrot.ui.UserInterfaceManager; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.OptionBuilder; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import org.apache.commons.cli.PosixParser; import org.apache.log4j.Logger; public class CombinedParrotApp extends JFrame { private static final long serialVersionUID = 1L; private static final String APP_TITLE = "The Digital Parrot"; private ParrotModel model; private List<MainViewComponent> mainViews = new ArrayList<MainViewComponent>(2); private MainViewComponent listView; private MainViewComponent graphView; private MainViewComponent activeMainView; private List<NavigatorComponent> navigators; private Map<Window, Point> preferredFrameLocations = new HashMap<Window, Point>(); public CombinedParrotApp(Properties properties) { super(); setModalExclusionType(Dialog.ModalExclusionType.APPLICATION_EXCLUDE); model = ParrotModelFactory.getInstance(Style.COMBINED).createModel(); initGUI(properties); } private void initGUI(Properties properties) { try { this.setTitle(APP_TITLE); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { for (MainViewComponent mainViewComponent : mainViews) { if (mainViewComponent instanceof ParrotStateListener) { ((ParrotStateListener) mainViewComponent).parrotExiting(); } } } }); setSize(920, 690); getContentPane().setLayout(new BorderLayout()); UserInterfaceManager uiManager = new UserInterfaceManager(properties); navigators = new ArrayList<NavigatorComponent>(4); // main view listView = uiManager.createMainViewComponent(Style.TABLE); graphView = uiManager.createMainViewComponent(Style.GRAPH); mainViews.add(listView); mainViews.add(graphView); final JTabbedPane mainPanel = new JTabbedPane(); mainPanel.add(graphView.getTitle(), graphView.asJComponent()); mainPanel.add(listView.getTitle(), listView.asJComponent()); mainPanel.setSelectedIndex(0); activeMainView = graphView; mainPanel.addChangeListener(new ChangeListener() { @Override public void stateChanged(ChangeEvent e) { if (e.getSource() != mainPanel) { return; } int selectedIndex = mainPanel.getSelectedIndex(); if (selectedIndex == 0) { activeMainView = graphView; } else if (selectedIndex == 1) { activeMainView = listView; } else { Logger logger = Logger.getLogger(CombinedParrotApp.class); logger.warn("unknown tab index selected: " + selectedIndex); } } }); add(mainPanel, BorderLayout.CENTER); // navigators JToolBar navigatorsBar = new JToolBar(JToolBar.HORIZONTAL); navigatorsBar.setMargin(new Insets(0, 11, 0, 0)); navigatorsBar.setFloatable(false); getContentPane().add(navigatorsBar, BorderLayout.PAGE_START); // timeline NavigatorComponent timelineNavigator = uiManager.createTimelineNavigationComponent(); navigators.add(timelineNavigator); JFrame timelineFrame = new JFrame(timelineNavigator.getNavigatorName() + " " + APP_TITLE); timelineFrame.getContentPane().add(timelineNavigator.asJComponent()); timelineFrame.pack(); Point preferredLocation = new Point(0, 0); preferredFrameLocations.put(timelineFrame, preferredLocation); if (timelineNavigator.hasShowHideListener()) { timelineFrame.addComponentListener(timelineNavigator.getShowHideListener()); } timelineFrame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE); JToggleButton timelineButton = setupNavigatorButton(timelineNavigator.getNavigatorName(), timelineNavigator.getAcceleratorKey(), timelineNavigator); navigatorsBar.add(timelineButton); // map NavigatorComponent mapNavigator = uiManager.createMapNavigationComponent(); navigators.add(mapNavigator); JFrame mapFrame = new JFrame(mapNavigator.getNavigatorName() + " " + APP_TITLE); mapFrame.getContentPane().add(mapNavigator.asJComponent()); mapFrame.pack(); preferredLocation = new Point(0, Toolkit.getDefaultToolkit().getScreenSize().height - mapFrame.getHeight()); preferredFrameLocations.put(mapFrame, preferredLocation); if (mapNavigator.hasShowHideListener()) { mapFrame.addComponentListener(mapNavigator.getShowHideListener()); } mapFrame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE); JToggleButton mapButton = setupNavigatorButton(mapNavigator.getNavigatorName(), mapNavigator.getAcceleratorKey(), mapNavigator); navigatorsBar.add(mapButton); // search NavigatorComponent searchNavigator = uiManager.createSearchComponent(); navigators.add(searchNavigator); JFrame searchFrame = new JFrame(searchNavigator.getNavigatorName() + " " + APP_TITLE); searchFrame.getContentPane().add(searchNavigator.asJComponent()); searchFrame.pack(); preferredLocation = new Point( Toolkit.getDefaultToolkit().getScreenSize().width - searchFrame.getWidth(), 0); preferredFrameLocations.put(searchFrame, preferredLocation); if (searchNavigator.hasShowHideListener()) { searchFrame.addComponentListener(searchNavigator.getShowHideListener()); } searchFrame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE); JToggleButton searchButton = setupNavigatorButton(searchNavigator.getNavigatorName(), searchNavigator.getAcceleratorKey(), searchNavigator); navigatorsBar.add(searchButton); // connections NavigatorComponent chainNavigator = uiManager.createChainNavigationComponent(); navigators.add(chainNavigator); if (chainNavigator instanceof PickListener) { for (MainViewComponent mainViewComponent : mainViews) { mainViewComponent.addPickListener((PickListener) chainNavigator); } } if (chainNavigator.hasShowHideListener()) { chainNavigator.asJComponent().addComponentListener(chainNavigator.getShowHideListener()); } JToggleButton connectionsButton = setupNavigatorButton(chainNavigator.getNavigatorName(), chainNavigator.getAcceleratorKey(), chainNavigator); navigatorsBar.add(connectionsButton); add(chainNavigator.asJComponent(), BorderLayout.PAGE_END); chainNavigator.asJComponent().setVisible(false); } catch (RuntimeException e) { e.printStackTrace(System.err); System.exit(1); } catch (UnknownStyleException e) { e.printStackTrace(System.err); System.exit(1); } } public Map<String, List<Action>> getNavigatorActionsForNode(NodeWrapper node) { Map<String, List<Action>> map = new HashMap<String, List<Action>>(); for (NavigatorComponent navigator : navigators) { map.put(navigator.getNavigatorName(), navigator.getActionsForNode(node)); } return map; } public Map<String, List<Action>> getNavigatorActionsForType(NodeWrapper type) { Map<String, List<Action>> map = new HashMap<String, List<Action>>(); for (NavigatorComponent navigator : navigators) { map.put(navigator.getNavigatorName(), navigator.getActionsForType(type)); } return map; } /** * @param args */ @SuppressWarnings("static-access") public static void main(String[] args) { CommandLineParser parser = new PosixParser(); // create the Options Options options = new Options(); options.addOption(OptionBuilder.withLongOpt("help") .withDescription("Shows usage information and quits the program").create("h")); options.addOption( OptionBuilder.withLongOpt("datafile").withDescription("The file with instances to use (required)") .hasArg().withArgName("file").isRequired().create("f")); options.addOption(OptionBuilder.withLongOpt("properties") .withDescription("Properties file to use. Default: " + System.getProperty("user.home") + File.separator + ".digital-parrot" + File.separator + "parrot.properties") .hasArg().withArgName("prop").create("p")); try { // parse the command line arguments CommandLine line = parser.parse(options, args); if (line.hasOption("h")) { // this is only executed when all required options are present _and_ the help option is specified! printHelp(options); return; } String datafile = line.getOptionValue("f"); if (!datafile.startsWith("file:") || !datafile.startsWith("http:")) { datafile = "file:" + datafile; } String propertiesPath = System.getProperty("user.home") + File.separator + ".digital-parrot" + File.separator + "parrot.properties"; if (line.hasOption("p")) { propertiesPath = line.getOptionValue("p"); } final Properties properties = new Properties(); File propertiesFile = new File(propertiesPath); if (propertiesFile.exists() && propertiesFile.canRead()) { try { properties.load(new FileReader(propertiesFile)); } catch (FileNotFoundException e) { e.printStackTrace(System.err); System.exit(1); } catch (IOException e) { e.printStackTrace(System.err); System.exit(1); } } final String url = datafile; // we need a "final" var for the anonymous class SwingUtilities.invokeLater(new Runnable() { public void run() { CombinedParrotApp inst = null; try { inst = new CombinedParrotApp(properties); inst.loadModel(url); } catch (Exception e) { JOptionPane.showMessageDialog(null, "There has been an error while starting the program.\nThe program will exit now.", APP_TITLE + " Error", JOptionPane.ERROR_MESSAGE); e.printStackTrace(System.err); System.exit(1); } if (inst != null) { inst.setLocationRelativeTo(null); inst.setVisible(true); } } }); } catch (ParseException exp) { printHelp(options); } } private void loadModel(String url) { model.loadData(url); graphView.setModel(model.asGraphModel()); listView.setModel(model.asListModel()); for (NavigatorComponent navigator : navigators) { if (navigator != null) { navigator.setModel(model); } } SwingUtilities.invokeLater(new Runnable() { @Override public void run() { validate(); } }); } @SuppressWarnings("serial") private JToggleButton setupNavigatorButton(final String name, final String accelerator, final NavigatorComponent navigator) { final Component component = navigator.asJComponent(); AbstractAction showNavigatorAction = new AbstractAction(name) { @Override public void actionPerformed(ActionEvent e) { if (!(e.getSource() instanceof JToggleButton)) { return; } final Window window; if (component instanceof Window) { window = (Window) component; } else { window = SwingUtilities.getWindowAncestor(component); } JToggleButton button = (JToggleButton) e.getSource(); boolean show = button.isSelected(); if (show) { if (window != CombinedParrotApp.this && preferredFrameLocations.containsKey(window)) { window.setLocation(preferredFrameLocations.get(window)); } } if (navigator.tellSelectionWhenShown()) { Collection<NodeWrapper> selectedNodes = activeMainView.getSelectedNodes(); navigator.setSelectedNodes(selectedNodes); } component.setVisible(show); if (show) { window.setVisible(true); } else if (window != CombinedParrotApp.this) { window.setVisible(false); } } }; showNavigatorAction.putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke("control " + accelerator)); final JToggleButton button = new JToggleButton(showNavigatorAction); button.setToolTipText("Show " + name.toLowerCase()); button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { button.setToolTipText((button.isSelected() ? "Hide " : "Show ") + name.toLowerCase()); } }); final Window window; if (component instanceof Window) { window = (Window) component; } else { window = SwingUtilities.getWindowAncestor(component); } if (window != null) { window.addComponentListener(new ComponentAdapter() { @Override public void componentHidden(ComponentEvent e) { button.setSelected(false); if (window != CombinedParrotApp.this) { preferredFrameLocations.put(window, window.getLocation()); } } @Override public void componentShown(ComponentEvent e) { button.setSelected(true); } }); } return button; } private static void printHelp(Options options) { HelpFormatter helpFormat = new HelpFormatter(); helpFormat.printHelp(APP_TITLE, options, true); } }