private void updateTemplateFromEditor(PrintfTemplate template) {
ArrayList params = new ArrayList();
String format = null;
int text_length = editorPane.getDocument().getLength();
try {
format = editorPane.getDocument().getText(0, text_length);
} catch (BadLocationException ex1) {
}
Element section_el = editorPane.getDocument().getDefaultRootElement();
// Get number of paragraphs.
int num_para = section_el.getElementCount();
for (int p_count = 0; p_count < num_para; p_count++) {
Element para_el = section_el.getElement(p_count);
// Enumerate the content elements
int num_cont = para_el.getElementCount();
for (int c_count = 0; c_count < num_cont; c_count++) {
Element content_el = para_el.getElement(c_count);
AttributeSet attr = content_el.getAttributes();
// Get the name of the style applied to this content element; may be null
String sn = (String) attr.getAttribute(StyleConstants.NameAttribute);
// Check if style name match
if (sn != null && sn.startsWith("Parameter")) {
// we extract the label.
JLabel l = (JLabel) StyleConstants.getComponent(attr);
if (l != null) {
params.add(l.getName());
}
}
}
}
template.setFormat(format);
template.setTokens(params);
}
private void displayMessage(String text, AttributeSet as) {
try {
if (!text.endsWith("\n")) {
text += "\n";
}
jTextPaneDisplayMessages
.getDocument()
.insertString(jTextPaneDisplayMessages.getDocument().getLength(), text, as);
jTextPaneDisplayMessages.setCaretPosition(jTextPaneDisplayMessages.getDocument().getLength());
} catch (BadLocationException ex) {
}
}
private void updateEditorView() {
editorPane.setText("");
numParameters = 0;
try {
java.util.List elements = editableTemplate.getPrintfElements();
for (Iterator it = elements.iterator(); it.hasNext(); ) {
PrintfUtil.PrintfElement el = (PrintfUtil.PrintfElement) it.next();
if (el.getFormat().equals(PrintfUtil.PrintfElement.FORMAT_NONE)) {
appendText(el.getElement(), PLAIN_ATTR);
} else {
insertParameter(
(ConfigParamDescr) paramKeys.get(el.getElement()),
el.getFormat(),
editorPane.getDocument().getLength());
}
}
} catch (Exception ex) {
JOptionPane.showMessageDialog(
this,
"Invalid Format: " + ex.getMessage(),
"Invalid Printf Format",
JOptionPane.ERROR_MESSAGE);
selectedPane = 1;
printfTabPane.setSelectedIndex(selectedPane);
updatePane(selectedPane);
}
}
private void addText(String str, String styleName, JTextPane pane) {
Document doc = pane.getDocument();
int len = doc.getLength();
try {
doc.insertString(len, str, pane.getStyle(styleName));
} catch (javax.swing.text.BadLocationException e) {
}
}
public void caretUpdate(CaretEvent e) {
// when the cursor moves on _textView
// this method will be called. Then, we
// must determine what the line number is
// and update the line number view
Element root = textView.getDocument().getDefaultRootElement();
int line = root.getElementIndex(e.getDot());
root = root.getElement(line);
int col = root.getElementIndex(e.getDot());
lineNumberView.setText(line + ":" + col);
// if text is selected then enable copy and cut
boolean isSelection = e.getDot() != e.getMark();
copyAction.setEnabled(isSelection);
cutAction.setEnabled(isSelection);
}
private void insertParameter(ConfigParamDescr descr, String format, int pos) {
try {
StyledDocument doc = (StyledDocument) editorPane.getDocument();
// The component must first be wrapped in a style
Style style = doc.addStyle("Parameter-" + numParameters, null);
JLabel label = new JLabel(descr.getDisplayName());
label.setAlignmentY(0.8f); // make sure we line up
label.setFont(new Font("Helvetica", Font.PLAIN, 14));
label.setForeground(Color.BLUE);
label.setName(descr.getKey());
label.setToolTipText("key: " + descr.getKey() + " format: " + format);
StyleConstants.setComponent(style, label);
doc.insertString(pos, format, style);
numParameters++;
} catch (BadLocationException e) {
}
}
public InterpreterFrame() {
super("Simple Lisp Interpreter");
// Create the menu
menubar = buildMenuBar();
setJMenuBar(menubar);
// Create the toolbar
toolbar = buildToolBar();
// disable cut and copy actions
cutAction.setEnabled(false);
copyAction.setEnabled(false);
// Setup text area for editing source code
// and setup document listener so interpreter
// is notified when current file modified and
// when the cursor is moved.
textView = buildEditor();
textView.getDocument().addDocumentListener(this);
textView.addCaretListener(this);
// set default key bindings
bindKeyToCommand("ctrl C", "(buffer-copy)");
bindKeyToCommand("ctrl X", "(buffer-cut)");
bindKeyToCommand("ctrl V", "(buffer-paste)");
bindKeyToCommand("ctrl E", "(buffer-eval)");
bindKeyToCommand("ctrl O", "(file-open)");
bindKeyToCommand("ctrl S", "(file-save)");
bindKeyToCommand("ctrl Q", "(exit)");
// Give text view scrolling capability
Border border =
BorderFactory.createCompoundBorder(
BorderFactory.createEmptyBorder(3, 3, 3, 3),
BorderFactory.createLineBorder(Color.gray));
JScrollPane topSplit = addScrollers(textView);
topSplit.setBorder(border);
// Create tabbed pane for console/problems
consoleView = makeConsoleArea(10, 50, true);
problemsView = makeConsoleArea(10, 50, false);
tabbedPane = buildProblemsConsole();
// Plug the editor and problems/console together
// using a split pane. This allows one to change
// their relative size using the split-bar in
// between them.
splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, topSplit, tabbedPane);
// Create status bar
statusView = new JLabel(" Status");
lineNumberView = new JLabel("0:0");
statusbar = buildStatusBar();
// Now, create the outer panel which holds
// everything together
outerpanel = new JPanel();
outerpanel.setLayout(new BorderLayout());
outerpanel.add(toolbar, BorderLayout.PAGE_START);
outerpanel.add(splitPane, BorderLayout.CENTER);
outerpanel.add(statusbar, BorderLayout.SOUTH);
getContentPane().add(outerpanel);
// tell frame to fire a WindowsListener event
// but not to close when "x" button clicked.
setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
addWindowListener(this);
// set minimised icon to use
setIconImage(makeImageIcon("spi.png").getImage());
// setup additional internal functions
InternalFunctions.setup_internals(interpreter, this);
// set default window size
Component top = splitPane.getTopComponent();
Component bottom = splitPane.getBottomComponent();
top.setPreferredSize(new Dimension(100, 400));
bottom.setPreferredSize(new Dimension(100, 200));
pack();
// load + run user configuration file (if there is one)
String homedir = System.getProperty("user.home");
try {
interpreter.load(homedir + "/.simplelisp");
} catch (FileNotFoundException e) {
// do nothing if file does not exist!
System.out.println("Didn't find \"" + homedir + "/.simplelisp\"");
}
textView.grabFocus();
setVisible(true);
// redirect all I/O to problems/console
redirectIO();
// start highlighter thread
highlighter = new DisplayThread(250);
highlighter.setDaemon(true);
highlighter.start();
}
private void appendText(String text, AttributeSet set) {
insertText(text, set, editorPane.getDocument().getLength());
}
private void insertText(String text, AttributeSet set, int pos) {
try {
editorPane.getDocument().insertString(pos, text, set);
} catch (BadLocationException ex) {
}
}