NetBeans RCP - 使用 Node & ExplorerManager 结合 BeanTreeView 编写的一个磁盘...

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package mobi.chenwei.nbm.explorer; import java.awt.BorderLayout; import java.io.Serializable; import java.util.logging.Logger; import org.openide.explorer.ExplorerManager; import org.openide.explorer.ExplorerUtils; import org.openide.explorer.view.BeanTreeView; import org.openide.util.NbBundle; import org.openide.windows.TopComponent; import org.openide.windows.WindowManager; //import org.openide.util.Utilities; /** * @author Chen Wei * @website www.chenwei.mobi * @email chenweionline@hotmail.com */ final class ExplorerTopComponent extends TopComponent implements ExplorerManager.Provider{ private static ExplorerTopComponent instance; /** path to the icon used by the component and its open action */ // static final String ICON_PATH = "SET/PATH/TO/ICON/HERE"; private static final String PREFERRED_ID = "ExplorerTopComponent"; private BeanTreeView fileTree; private ExplorerManager explorerMgr; private ExplorerTopComponent() { initComponents(); setName(NbBundle.getMessage(ExplorerTopComponent.class, "CTL_ExplorerTopComponent")); setToolTipText(NbBundle.getMessage(ExplorerTopComponent.class, "HINT_ExplorerTopComponent")); // setIcon(Utilities.loadImage(ICON_PATH, true)); myInit(); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { setLayout(new java.awt.BorderLayout()); }// </editor-fold>//GEN-END:initComponents // Variables declaration - do not modify//GEN-BEGIN:variables // End of variables declaration//GEN-END:variables /** * Gets default instance. Do not use directly: reserved for *.settings files only, * i.e. deserialization routines; otherwise you could get a non-deserialized instance. * To obtain the singleton instance, use {@link findInstance}. */ public static synchronized ExplorerTopComponent getDefault() { if (instance == null) { instance = new ExplorerTopComponent(); } return instance; } /** * Obtain the ExplorerTopComponent instance. Never call {@link #getDefault} directly! */ public static synchronized ExplorerTopComponent findInstance() { TopComponent win = WindowManager.getDefault().findTopComponent(PREFERRED_ID); if (win == null) { Logger.getLogger(ExplorerTopComponent.class.getName()).warning( "Cannot find " + PREFERRED_ID + " component. It will not be located properly in the window system."); return getDefault(); } if (win instanceof ExplorerTopComponent) { return (ExplorerTopComponent) win; } Logger.getLogger(ExplorerTopComponent.class.getName()).warning( "There seem to be multiple components with the '" + PREFERRED_ID + "' ID. That is a potential source of errors and unexpected behavior."); return getDefault(); } @Override public int getPersistenceType() { return TopComponent.PERSISTENCE_ALWAYS; } @Override public void componentOpened() { // TODO add custom code on component opening } @Override public void componentClosed() { // TODO add custom code on component closing } /** replaces this in object stream */ @Override public Object writeReplace() { return new ResolvableHelper(); } @Override protected String preferredID() { return PREFERRED_ID; } final static class ResolvableHelper implements Serializable { private static final long serialVersionUID = 1L; public Object readResolve() { return ExplorerTopComponent.getDefault(); } } private void myInit() { fileTree = new BeanTreeView(); explorerMgr = new ExplorerManager(); add(fileTree, BorderLayout.CENTER); this.associateLookup(ExplorerUtils.createLookup(explorerMgr, getActionMap())); explorerMgr.setRootContext(FileNode.createHomeNode(new DirFilter())); // m_ExplorerMgr.setRootContext(FileNode.createHomeNode(null)); } public ExplorerManager getExplorerManager() { return explorerMgr; } }