javax.swing.JFileChooser#FILES_AND_DIRECTORIES源码实例Demo

private void selectButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_selectButtonActionPerformed
    if (!isSane())
        return;

    int selectionType = importer.canImportDirectories() ? JFileChooser.FILES_AND_DIRECTORIES : JFileChooser.FILES_ONLY;
    String[][] filetypes = importer.getFileExtensions(properties.getImportOpensZipFiles());

    File importFile = SelectFile.selectFile(this, "Select " + importer.getFormatName() + " file to import",
            properties.getDefaultImportDir(), false, false, selectionType, filetypes);
    if (importFile != null) {
        filenameTextField.setText(importFile.getPath());
        // Tell the user that the data in the tree importer is obsolete.
        treeImporter.clear();
        try {
            properties.setDefaultImportDir(importFile.getParentFile().getCanonicalPath());
        } catch (IOException ex) {
            // we may ignore this
        }
    }
}
 

/**
 * Adds the directory or file field.
 *
 * @param label
 *            the label
 * @param defaultPath
 *            the default path
 * @param columns
 *            the columns
 */
public void addDirectoryOrFileField(String label, String defaultPath, int columns) {
	addStringField(label, defaultPath, columns);
	if (isHeadless())
		return;

	TextField text = (TextField) stringField.lastElement();
	GridBagLayout layout = (GridBagLayout) getLayout();
	GridBagConstraints constraints = layout.getConstraints(text);

	Button button = new Button("Browse...");
	DirectoryListener listener = new DirectoryListener("Browse for " + label, text,
			JFileChooser.FILES_AND_DIRECTORIES);
	button.addActionListener(listener);
	button.addKeyListener(this);

	Panel panel = new Panel();
	panel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
	panel.add(text);
	panel.add(button);

	layout.setConstraints(panel, constraints);
	add(panel);
}
 

MainPanel(LogVisualizer logVisualizer, ExecutePlanCallback executePlanCallback,
    Properties properties, PropertyChangeCallback propertyChangeCallback) {
  this.visualizer = logVisualizer;
  this.propertyChangeCallback = propertyChangeCallback;

  setLayout(null);

  logFileSelectionBox = new FileSelectionBox("LogFilePath", this::onLogFileSelected,
      properties.getProperty(GuiPropertyKeys.DEFAULT_LOG_FILE_PATH.getKey()), JFileChooser.FILES_AND_DIRECTORIES);
  logFileSelectionBox.setLocation(0, 0);
  logFileSelectionBox.setSize(380, 40);

  parserPropertyBox = new FileSelectionBox("ParserPropertyFilePath",
      this::onParserPropertySelected, properties.getProperty(GuiPropertyKeys
      .DEFAULT_PARSER_FILE_PATH.getKey()), JFileChooser.FILES_ONLY);
  parserPropertyBox.setLocation(0, 45);
  parserPropertyBox.setSize(380, 40);

  loadLogBox = new LoadLogBox(logVisualizer);
  loadLogBox.setLocation(450, 0);
  loadLogBox.setSize(300, 50);

  planBox = new PlanBox(logVisualizer, executePlanCallback, properties.getProperty(GuiPropertyKeys
      .DEFAULT_PLAN_PATH.getKey()), propertyChangeCallback);
  planBox.setLocation(0, 100);
  planBox.setSize(750, 430);

  add(logFileSelectionBox);
  add(parserPropertyBox);
  add(loadLogBox);
  add(planBox);
}
 

/**
 * This method is called by the IDE to pass
 * the environment to the property editor.
 * @param env Environment passed by the ide.
 */
public void attachEnv(PropertyEnv env) {
    this.env = env;

    // clearing to defaults
    directories = true;
    files = true;
    fileFilter = null;
    fileHiding = false;

    Object dirs = env.getFeatureDescriptor().getValue(PROPERTY_SHOW_DIRECTORIES);
    if (dirs instanceof Boolean) {
        directories = ((Boolean)dirs).booleanValue();
    } // XXX else if != null, warn
    Object fil = env.getFeatureDescriptor().getValue(PROPERTY_SHOW_FILES);
    if (fil instanceof Boolean) {
        files = ((Boolean)fil).booleanValue();
    } // XXX else if != null, warn
    Object filter = env.getFeatureDescriptor().getValue(PROPERTY_FILTER);
    if (filter instanceof FilenameFilter) {
        fileFilter = new DelegatingFilenameFilter((FilenameFilter)filter);
    } else if (filter instanceof javax.swing.filechooser.FileFilter) {
        fileFilter = (javax.swing.filechooser.FileFilter)filter;
    } else if (filter instanceof java.io.FileFilter) {
        fileFilter = new DelegatingFileFilter((java.io.FileFilter)filter);
    } // XXX else if != null, warn

    Object curDir = env.getFeatureDescriptor().getValue(PROPERTY_CURRENT_DIR);
    if (curDir instanceof File) {
        currentDirectory = (File)curDir;
        if(! currentDirectory.isDirectory()) {
            Logger.getAnonymousLogger().warning("java.io.File will not accept currentDir=" + currentDirectory); // NOI18N
            currentDirectory = null;
        }
    } // XXX else if != null, warn

    Object baseDir = env.getFeatureDescriptor().getValue(PROPERTY_BASE_DIR);
    if(baseDir instanceof File) {
        baseDirectory = (File)baseDir;
        // As baseDir accept only directories in their absolute form.
        if(!baseDirectory.isDirectory() || !baseDirectory.isAbsolute()) {
            Logger.getAnonymousLogger().warning("java.io.File will not accept baseDir=" + baseDirectory); // NOI18N
            baseDirectory = null;
        }
    } // XXX else if != null, warn
    if (files) {
        mode = directories ? JFileChooser.FILES_AND_DIRECTORIES : 
            JFileChooser.FILES_ONLY;
    } else {
        mode = directories ? JFileChooser.DIRECTORIES_ONLY :
            JFileChooser.FILES_AND_DIRECTORIES; // both false, what now? XXX warn
    }
    
    Object fileHide = env.getFeatureDescriptor().getValue(PROPERTY_FILE_HIDING);
    if (fileHide instanceof Boolean) {
        fileHiding = ((Boolean)fileHide).booleanValue();
    }
    
    if (env.getFeatureDescriptor() instanceof Node.Property){
        Node.Property prop = (Node.Property)env.getFeatureDescriptor();
        editable = prop.canWrite();
    }
}