public void init() {
// 添加按钮
JPanel buttonPanel = new JPanel();
buttonPanel.add(okButton);
mainPanel.setLayout(new GridLayout(0, 3));
mainWin.add(mainPanel, BorderLayout.CENTER);
JFormattedTextField intField0 =
new JFormattedTextField(
new InternationalFormatter(NumberFormat.getIntegerInstance()) {
protected DocumentFilter getDocumentFilter() {
return new NumberFilter();
}
});
intField0.setValue(100);
addRow("只接受数字的文本框", intField0);
JFormattedTextField intField1 = new JFormattedTextField(NumberFormat.getIntegerInstance());
intField1.setValue(new Integer(100));
// 添加输入校验器
intField1.setInputVerifier(new FormattedTextFieldVerifier());
addRow("带输入校验器的文本框", intField1);
// 创建自定义格式器对象
IPAddressFormatter ipFormatter = new IPAddressFormatter();
ipFormatter.setOverwriteMode(false);
// 以自定义格式器对象创建格式化文本框
JFormattedTextField ipField = new JFormattedTextField(ipFormatter);
ipField.setValue(new byte[] {(byte) 192, (byte) 168, 4, 1});
addRow("IP地址格式", ipField);
mainWin.add(buttonPanel, BorderLayout.SOUTH);
mainWin.pack();
mainWin.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainWin.setVisible(true);
}
public static void main() {
// Main
frame = new JFrame("Java Playground");
frame.setSize(640, 480);
// Make sure the divider is properly resized
frame.addComponentListener(
new ComponentAdapter() {
public void componentResized(ComponentEvent c) {
splitter.setDividerLocation(.8);
}
});
// Make sure the JVM is reset on close
frame.addWindowListener(
new WindowAdapter() {
public void windowClosed(WindowEvent w) {
new FrameAction().kill();
}
});
// Setting up the keybinding
// Ctrl+k or Cmd+k -> compile
bind(KeyEvent.VK_K);
// Ctrl+e or Cmd+e -> console
bind(KeyEvent.VK_E);
// Save, New file, Open file, Print.
// Currently UNUSED until I figure out how normal java files and playground files will
// interface.
bind(KeyEvent.VK_S);
bind(KeyEvent.VK_N);
bind(KeyEvent.VK_O);
bind(KeyEvent.VK_P);
// Binds the keys to the action defined in the FrameAction class.
frame.getRootPane().getActionMap().put("console", new FrameAction());
// The main panel for typing code in.
text = new JTextPane();
textScroll = new JScrollPane(text);
textScroll.setBorder(null);
textScroll.setPreferredSize(new Dimension(640, 480));
// Document with syntax highlighting. Currently unfinished.
doc = text.getStyledDocument();
doc.addDocumentListener(
new DocumentListener() {
public void changedUpdate(DocumentEvent d) {}
public void insertUpdate(DocumentEvent d) {}
public void removeUpdate(DocumentEvent d) {}
});
((AbstractDocument) doc).setDocumentFilter(new NewLineFilter());
// The output log; a combination compiler warning/error/runtime error/output log.
outputText = new JTextPane();
outputScroll = new JScrollPane(outputText);
outputScroll.setBorder(null);
// "Constant" for the error font
error = new SimpleAttributeSet();
error.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.TRUE);
error.addAttribute(StyleConstants.Foreground, Color.RED);
// "Constant" for the warning message font
warning = new SimpleAttributeSet();
warning.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.TRUE);
warning.addAttribute(StyleConstants.Foreground, Color.PINK);
// "Constant" for the debugger error font
progErr = new SimpleAttributeSet();
progErr.addAttribute(StyleConstants.Foreground, Color.BLUE);
// Print streams to redirect System.out and System.err.
out = new TextOutputStream(outputText, null);
err = new TextOutputStream(outputText, error);
System.setOut(new PrintStream(out));
System.setErr(new PrintStream(err));
// Sets up the output log
outputText.setEditable(false);
outputScroll.setVisible(true);
// File input/output setup
chooser = new JFileChooser();
// Setting up miscellaneous stuff
compiler = ToolProvider.getSystemJavaCompiler();
JVMrunning = false;
redirectErr = null;
redirectOut = null;
redirectIn = null;
// Sets up the splitter pane and opens the program up
splitter = new JSplitPane(JSplitPane.VERTICAL_SPLIT, textScroll, outputScroll);
consoleDisplayed = false;
splitter.remove(outputScroll); // Initially hides terminal until it is needed
splitter.setOneTouchExpandable(true);
frame.add(splitter);
frame.setVisible(true);
// Sets the divider to the proper one, for debugging
// splitter.setDividerLocation(.8);
}