/* * Licensed Materials - Property of Rogue Wave Software, Inc. * © Copyright Rogue Wave Software, Inc. 2014, 2015 * © Copyright IBM Corp. 2009, 2014 * © Copyright ILOG 1996, 2009 * All Rights Reserved. * * Note to U.S. Government Users Restricted Rights: * The Software and Documentation were developed at private expense and * are "Commercial Items" as that term is defined at 48 CFR 2.101, * consisting of "Commercial Computer Software" and * "Commercial Computer Software Documentation", as such terms are * used in 48 CFR 12.212 or 48 CFR 227.7202-1 through 227.7202-4, * as applicable. */ import ilog.views.IlvGrapher; import ilog.views.IlvHandlesSelection; import ilog.views.IlvManagerView; import ilog.views.IlvTransformer; import ilog.views.interactor.IlvSelectInteractor; import ilog.views.interactor.IlvZoomViewInteractor; import ilog.views.swing.IlvJScrollManagerView; import ilog.views.swing.IlvJManagerViewControlBar; import ilog.views.graphlayout.IlvGraphLayout; import ilog.views.graphlayout.IlvGraphLayoutReport; import ilog.views.graphlayout.IlvGraphLayoutException; import ilog.views.graphlayout.IlvGrapherAdapter; import ilog.views.graphlayout.GraphLayoutEvent; import ilog.views.graphlayout.GraphLayoutEventListener; import ilog.views.graphlayout.link.IlvLinkLayout; import ilog.views.util.IlvProductUtil; import ilog.views.util.IlvResourceUtil; import ilog.views.util.IlvLocaleUtil; import ilog.views.util.swing.IlvSwingUtil; import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.*; import java.net.*; import java.io.*; import java.text.*; /** * This is a very simple applet/application that uses the * <code>IlvGrapher</code> to perform a link layout. * It shows how to use link layout in applications that are not based * on CSS styling. */ public class LinkLayoutApplet extends JApplet { static { // This applet is designed to run only with default resource bundle // and various selected other resource bundles. // Setting the available resource suffixes avoids that the applet // tries to load resource bundles for other locales over the net, // even if the current locale of the browser is different. if (IlvResourceUtil.isInApplet()) IlvResourceUtil.setAvailableResourceSuffixes("", "_ja"); // Test code whether the demo works in RTL locales // Locale newLocale = new Locale("he"); // IlvSwingUtil.setDefaultLocale(newLocale); } { // This sample uses JViews Diagrammer features. When deploying an // application that includes this code, you need to be in possession // of a JViews Diagrammer Deployment license. IlvProductUtil.DeploymentLicenseRequired( IlvProductUtil.JViews_Diagrammer_Deployment); } /** The grapher */ IlvGrapher grapher = new IlvGrapher(); /** The view of the grapher */ IlvManagerView mgrview = new IlvManagerView(grapher); /** An instance of the Link Layout algorithm */ IlvLinkLayout layout = new IlvLinkLayout(); /** A graph layout event listener */ LayoutIterationListener layoutListener = new LayoutIterationListener(); /** A text field to display messages */ JTextField msgLine = new JTextField(); /** * Initializes the applet/application. */ public void init() { showMessage(getString("InitMessage")); super.init(); // set some default values layout.setAutoLayout(true); // attach the grapher to the layout instances IlvGrapherAdapter adapter = new IlvGrapherAdapter(grapher); // attach the grapher to the layout instances layout.attach(adapter); // install the layout iteration listener on the layout instance layout.addGraphLayoutEventListener(layoutListener); // use manager coordinates layout.setCoordinatesMode(IlvGraphLayout.MANAGER_COORDINATES); // create the scroll manager view IlvJScrollManagerView scrollManView = new IlvJScrollManagerView(mgrview); // Some settings on the manager view and on the scroll manager view mgrview.setAntialiasing(true); mgrview.setKeepingAspectRatio(true); mgrview.setBackground(Color.white); mgrview.setForeground(SystemColor.windowText); Color xc = SystemColor.windowText; xc = new Color(255-xc.getRed(), 255-xc.getGreen(), 255-xc.getBlue()); mgrview.setDefaultXORColor(xc); mgrview.setDefaultGhostColor(SystemColor.windowText); mgrview.setZoomFactorRange(0.02, 10.0); mgrview.setWheelZoomingEnabled(true); scrollManView.setWheelScrollingEnabled(true); // Settings parameters for selection handles IlvHandlesSelection.defaultHandleColor = Color.black; IlvHandlesSelection.defaultHandleBackgroundColor = Color.white; IlvHandlesSelection.defaultHandleShape = IlvHandlesSelection.SQUARE_SHAPE; // create the standard control bar IlvJManagerViewControlBar controlBar = new IlvJManagerViewControlBar(); controlBar.setView(mgrview); // modify the interactors such that the demo looks better IlvSelectInteractor selInter = ((IlvSelectInteractor)controlBar.getSelectInteractor()); selInter.setOpaqueMove(true); selInter.setOpaqueResize(true); selInter.setOpaquePolyPointsEdition(true); ((IlvZoomViewInteractor)controlBar.getZoomViewInteractor()).setPermanent(true); // set the initial interactor mgrview.setInteractor(controlBar.getSelectInteractor()); // create the graph selector JComboBox fileSelector = new JComboBox(); fileSelector.addItem("sample1"); fileSelector.addItem("sample2"); fileSelector.addItem("sample2-spline"); fileSelector.addItem("sample3"); fileSelector.addItem("sample4"); fileSelector.addItem("sample5"); fileSelector.setToolTipText(getString("fileChooser.Tooltip")); fileSelector.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { JComboBox comboBox = (JComboBox)event.getSource(); String fileName = (String)comboBox.getSelectedItem(); loadGrapher(fileName); } }); // create the layout button JButton layoutButton = new JButton(getString("LayoutButton.Label")); layoutButton.setToolTipText(getString("LayoutButton.Tooltip")); layoutButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evt) { layout(layout, grapher); }}); // create the panel for the layout buttons and parameters JPanel layoutPanel = new JPanel(); layoutPanel.setLayout(new FlowLayout(FlowLayout.LEADING)); layoutPanel.add(layoutButton); addFurtherOptions(layoutPanel); // create the top panel with the toolbar and the file selector JPanel topPanel = new JPanel(); topPanel.setLayout(new FlowLayout(FlowLayout.LEADING)); topPanel.add(controlBar); topPanel.add(new JLabel(getString("fileChooser.Label"))); topPanel.add(fileSelector); // create the bottom panel with the layout buttons and the message line JPanel bottomPanel = new JPanel(); bottomPanel.setLayout(new BorderLayout()); bottomPanel.add(layoutPanel, BorderLayout.NORTH); bottomPanel.add(msgLine, BorderLayout.SOUTH); msgLine.setEditable(false); // put manager view, top panel and bottom panel together getContentPane().setLayout(new BorderLayout(0, 0)); getContentPane().add(scrollManView, BorderLayout.CENTER); getContentPane().add(topPanel, BorderLayout.NORTH); getContentPane().add(bottomPanel, BorderLayout.SOUTH); // set the component orientation according to the locale Locale loc = IlvSwingUtil.getDefaultLocale(); ComponentOrientation co = ComponentOrientation.getOrientation(loc); getContentPane().applyComponentOrientation(co); // load a sample grapher loadGrapher("sample1"); } /** * Called when this applet is being reclaimed in order to destroy * any resources that it has allocated. */ public void destroy() { super.destroy(); // This method is intended to workaround memory management issues // in the Sun JRE. Please refer to the method documentation for more // details and a description of the known issues. IlvSwingUtil.cleanupApplet(); } /** * Fill the layout panel with further options. */ private void addFurtherOptions(JPanel layoutPanel) { JPanel panel = new JPanel(); layoutPanel.add(panel); panel.setLayout(new GridLayout(2, 1)); JCheckBox longLinks = new JCheckBox(getString("longLinksCheckbox.Label"), (layout.getLayoutMode() == IlvLinkLayout.LONG_LINKS)); longLinks.setToolTipText(getString("longLinksCheckbox.Tooltip")); panel.add(longLinks); longLinks.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { setLayoutMode(e.getStateChange() == ItemEvent.SELECTED); } }); JCheckBox orthoLinks = new JCheckBox(getString("orthoLinksCheckbox.Label"), (layout.getGlobalLinkStyle() == IlvLinkLayout.ORTHOGONAL_STYLE)); orthoLinks.setToolTipText(getString("orthoLinksCheckbox.Tooltip")); panel.add(orthoLinks); orthoLinks.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { setOrthLinkStyle(e.getStateChange() == ItemEvent.SELECTED); } }); JCheckBox autoLayout = new JCheckBox(getString("autoLayoutCheckbox.Label"), layout.isAutoLayout()); autoLayout.setToolTipText(getString("autoLayoutCheckbox.Tooltip")); layoutPanel.add(autoLayout); autoLayout.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { setAutoLayout(e.getStateChange() == ItemEvent.SELECTED); } }); } /** * Sets the layout mode. */ private void setLayoutMode(boolean flag) { layout.setLayoutMode( flag ? IlvLinkLayout.LONG_LINKS : IlvLinkLayout.SHORT_LINKS); } /** * Sets the orithogonal link style or direct link style. */ private void setOrthLinkStyle(boolean flag) { layout.setGlobalLinkStyle(flag ? IlvLinkLayout.ORTHOGONAL_STYLE : IlvLinkLayout.DIRECT_STYLE); } /** * Sets the orthogonal mode. */ private void setAutoLayout(boolean flag) { layout.setAutoLayout(flag); } public void start() { // show all the graph mgrview.fitTransformerToContent(); } /** * Performs the layout of the graph. */ private void layout(IlvGraphLayout layout, IlvGrapher grapher) { // the layout report instance; this is an object in which // the layout algorithm stores information about its behavior IlvGraphLayoutReport layoutReport = null; showMessage(getString("LayoutStartMessage")); // initialize the iteration listener layoutListener.initialize(); try { // perform the layout and get the layout report layoutReport = layout.performLayout(false, false); // print the code from the layout report showMessage(getString("LayoutDoneMessage"), layoutReport.codeToString(layoutReport.getCode(), IlvLocaleUtil.getCurrentULocale())); } catch (IlvGraphLayoutException e) { // e.printStackTrace(); showMessage(e.getMessage()); } finally { if (layoutReport != null && layoutReport.getCode() != IlvGraphLayoutReport.NOT_NEEDED) { // show all mgrview.repaint(); } } } /** * Load a sample IVL file. * @param fileNameBase The base of the filename, excluding the path prefix * and the extension suffix. */ private void loadGrapher(String fileNameBase) { try { showMessage(getString("FileReadingStartMessage"), fileNameBase); // save the auto layout setting boolean autoLayoutFlag = layout.isAutoLayout(); // don't lay out the grapher automatically after reading it // (this is just to allow the user to see the difference once // the layout is executed). layout.setAutoLayout(false); // empty the grapher grapher.deleteAll(false); try { grapher.read( IlvSwingUtil.getRelativeURL(this, "data/" + fileNameBase + ".ivl")); } catch (Exception ex1) { // This case occurs only when we pack the entire application into // one jar including the data files, and start as application grapher.read(getClass().getResource("data/" + fileNameBase + ".ivl")); } // restore the previous state of the option layout.setAutoLayout(autoLayoutFlag); // show all the graph mgrview.fitTransformerToContent(); grapher.reDraw(); showMessage(getString("FileReadingDoneMessage"), fileNameBase); } catch (Exception e) { // e.printStackTrace(); showMessage(e.getMessage()); } } /** * Displays a message. */ void showMessage(String message) { // the message is displayed in the message line msgLine.setText(message); msgLine.paintImmediately(0, 0, msgLine.getWidth(), msgLine.getHeight()); } void showMessage(String msgformat, Object val) { Object[] args = { val }; showMessage(MessageFormat.format(msgformat, args)); } /** * Returns a string. */ static String getString(String key) { return IlvResourceUtil.getString(key, LinkLayoutApplet.class, IlvLocaleUtil.getCurrentLocale()); } /** * Allows you to run the demo as a standalone application. */ public static void main(String[] arg) { // Sun recommends that to put the entire GUI initialization into the // AWT thread SwingUtilities.invokeLater( new Runnable() { public void run() { LinkLayoutApplet applet = new LinkLayoutApplet(); applet.init(); JFrame frame = new JFrame(getString("Frame.Label")); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(600, 600); frame.getContentPane().add(applet); frame.setVisible(true); } }); } // ------------------------------------------------------------------------- /** * A graph layout iteration listener. Implementing the interface * GraphLayoutEventListener gives you the possibility to receive * during the layout information about the behavior of the layout * algorithm. This information is contained in the graph layout event. * * In our case, we will simply print a dot each time the method * layoutStepPerformed is called, that is after each iteration of * the orthogonal link layout algorithm. */ class LayoutIterationListener implements GraphLayoutEventListener { private String toShow = ""; private static final int MAX_LENGTH = 50; private IlvGraphLayout layout; /** * This method is automatically called by the layout algorithm. */ public void layoutStepPerformed(GraphLayoutEvent event) { // the status area has a limited width, so we are forced to // reinitialize the message string if (toShow.length() > MAX_LENGTH) toShow = ""; toShow += "."; showMessage(toShow); } /** * Initialize the listener. * This method must be called before the layout is started. */ void initialize() { toShow = ""; } } }