Java JTextArea.setMargin方法代码示例

import javax.swing.JTextArea; //导入方法依赖的package包/类
public ExtendedExample() {

    super(new BorderLayout());

    keyField = new JTextField(32);
    modeBox = new JComboBox<>(SpeechAPI.RecognitionMode.values());
    languageBox = new JComboBox<>(SpeechAPI.Language.values());
    formatBox = new JComboBox<>(SpeechAPI.OutputFormat.values());

    log = new JTextArea(20, 40);
    log.setMargin(new Insets(5, 5, 5, 5));
    log.setEditable(false);
    log.setLineWrap(true);
    JScrollPane logScrollPane = new JScrollPane(log);

    fc = new JFileChooser();
    fc.setFileFilter(new FileNameExtensionFilter("WAV audio files", "wav"));

    openButton = new JButton("Transcribe File", UIManager.getIcon("FileView.directoryIcon"));
    openButton.addActionListener(this);

    micButton = new JButton("Use Microphone", UIManager.getIcon("Tree.expandedIcon"));
    micButton.addActionListener(this);

    JPanel midPanel = new JPanel();
    midPanel.add(openButton);
    midPanel.add(micButton);

    JPanel knobs = new JPanel(new GridLayout(0, 2));
    knobs.add(new JLabel("Recognition mode:"));
    knobs.add(modeBox);
    knobs.add(new JLabel("Recognition language:"));
    knobs.add(languageBox);
    knobs.add(new JLabel("Output format:"));
    knobs.add(formatBox);

    midPanel.add(knobs);

    openButton.setEnabled(false);
    micButton.setEnabled(false);

    JPanel keyPanel = new JPanel();
    keyPanel.add(new JLabel("Please, enter your subscription key:"));
    keyPanel.add(keyField);
    keyField.setEditable(true);

    keyField.addActionListener((ActionEvent e) -> {
      if (bootstrapped)
        return;

      String text = keyField.getText();
      if (text != null && text.length() == 32) {
        log.append(String.format("Using subscription key '%s' to  generate an access token...", text));
        CompletableFuture.supplyAsync(() -> {
          return new RenewableAuthentication(text);
        }).thenAccept(this::bootstrap);
      } else if (text != null) {
        log.append(String.format("Subscription key is too %s.\n", text.length() < 32 ? "short" : "long"));
      }
    });

    add(keyPanel, BorderLayout.NORTH);
    add(midPanel, BorderLayout.CENTER);
    add(logScrollPane, BorderLayout.SOUTH);

    languageBox.setSelectedItem(SpeechAPI.Language.en_US);
  }
 

import javax.swing.JTextArea; //导入方法依赖的package包/类
@Override
public void installUI(JComponent c) {
    super.installUI(c);

    jta = (JTextArea) c;

    JTextArea editor = jta;

    UIDefaults uidefaults = XToolkit.getUIDefaults();

    String prefix = getPropertyPrefix();
    Font f = editor.getFont();
    if ((f == null) || (f instanceof UIResource)) {
        editor.setFont(uidefaults.getFont(prefix + ".font"));
    }

    Color bg = editor.getBackground();
    if ((bg == null) || (bg instanceof UIResource)) {
        editor.setBackground(uidefaults.getColor(prefix + ".background"));
    }

    Color fg = editor.getForeground();
    if ((fg == null) || (fg instanceof UIResource)) {
        editor.setForeground(uidefaults.getColor(prefix + ".foreground"));
    }

    Color color = editor.getCaretColor();
    if ((color == null) || (color instanceof UIResource)) {
        editor.setCaretColor(uidefaults.getColor(prefix + ".caretForeground"));
    }

    Color s = editor.getSelectionColor();
    if ((s == null) || (s instanceof UIResource)) {
        editor.setSelectionColor(uidefaults.getColor(prefix + ".selectionBackground"));
    }

    Color sfg = editor.getSelectedTextColor();
    if ((sfg == null) || (sfg instanceof UIResource)) {
        editor.setSelectedTextColor(uidefaults.getColor(prefix + ".selectionForeground"));
    }

    Color dfg = editor.getDisabledTextColor();
    if ((dfg == null) || (dfg instanceof UIResource)) {
        editor.setDisabledTextColor(uidefaults.getColor(prefix + ".inactiveForeground"));
    }

    Border b = new BevelBorder(false,SystemColor.controlDkShadow,SystemColor.controlLtHighlight);
    editor.setBorder(new BorderUIResource.CompoundBorderUIResource(
        b,new EmptyBorder(2, 2, 2, 2)));

    Insets margin = editor.getMargin();
    if (margin == null || margin instanceof UIResource) {
        editor.setMargin(uidefaults.getInsets(prefix + ".margin"));
    }
}
 

import javax.swing.JTextArea; //导入方法依赖的package包/类
private void initGUI() {

        JPanel pCommand = new JPanel();

        pResult = new JPanel();
        nsSplitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, pCommand,
                                     pResult);

        pCommand.setLayout(new BorderLayout());
        pResult.setLayout(new BorderLayout());

        Font fFont = new Font("Dialog", Font.PLAIN, 12);

        txtCommand = new JTextArea(5, 40);

        txtCommand.setMargin(new Insets(5, 5, 5, 5));
        txtCommand.addKeyListener(this);

        txtCommandScroll = new JScrollPane(txtCommand);
        txtResult        = new JTextArea(20, 40);

        txtResult.setMargin(new Insets(5, 5, 5, 5));

        txtResultScroll = new JScrollPane(txtResult);

        txtCommand.setFont(fFont);
        txtResult.setFont(new Font("Courier", Font.PLAIN, 12));
/*
// button replaced by toolbar
        butExecute = new JButton("Execute");

        butExecute.addActionListener(this);
        pCommand.add(butExecute, BorderLayout.EAST);
*/
        pCommand.add(txtCommandScroll, BorderLayout.CENTER);

        gResult = new GridSwing();

        TableSorter sorter = new TableSorter(gResult);

        tableModel   = sorter;
        gResultTable = new JTable(sorter);

        sorter.setTableHeader(gResultTable.getTableHeader());

        gScrollPane = new JScrollPane(gResultTable);

        gResultTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        gResult.setJTable(gResultTable);

        //getContentPane().setLayout(new BorderLayout());
        pResult.add(gScrollPane, BorderLayout.CENTER);

        // Set up the tree
        rootNode    = new DefaultMutableTreeNode("Connection");
        treeModel   = new DefaultTreeModel(rootNode);
        tTree       = new JTree(treeModel);
        tScrollPane = new JScrollPane(tTree);

        tScrollPane.setPreferredSize(new Dimension(120, 400));
        tScrollPane.setMinimumSize(new Dimension(70, 100));
        txtCommandScroll.setPreferredSize(new Dimension(360, 100));
        txtCommandScroll.setMinimumSize(new Dimension(180, 100));
        gScrollPane.setPreferredSize(new Dimension(460, 300));

        ewSplitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
                                     tScrollPane, nsSplitPane);

        fMain.getContentPane().add(ewSplitPane, BorderLayout.CENTER);
        doLayout();
        fMain.pack();
    }
 

import javax.swing.JTextArea; //导入方法依赖的package包/类
private static void setScreen(JTextArea myScreen) {
  myScreen.setFont(new Font("Arial", Font.PLAIN, 16));
  myScreen.setMargin(new Insets(5, 5, 5, 5));
}