/**
* This is the hook through which all menu items are created. It registers the result with the
* menuitem hashtable so that it can be fetched with getMenuItem().
*
* @see #getMenuItem
*/
protected JMenuItem createMenuItem(String cmd) {
JMenuItem mi = new JMenuItem(getResourceString(cmd + labelSuffix));
URL url = getResource(cmd + imageSuffix);
if (url != null) {
mi.setHorizontalTextPosition(JButton.RIGHT);
mi.setIcon(new ImageIcon(url));
}
String astr = getResourceString(cmd + actionSuffix);
if (astr == null) {
astr = cmd;
}
mi.setActionCommand(astr);
Action myaction = getAction(astr); // if this is a known action
if (myaction != null) {
mi.addActionListener(myaction);
myaction.addPropertyChangeListener(createActionChangeListener(mi));
// System.out.println("myaction not null: astr:"+astr+" enabled:"+myaction.isEnabled());
mi.setEnabled(myaction.isEnabled());
} else {
System.err.println("Error:TextViewer: createMenuItem: myaction is null: astr:" + astr);
// causes the item to be greyed out
mi.setEnabled(false);
}
menuItems.put(cmd, mi);
return mi;
}
private Action getAction(String name) {
for (Action action : sourceArea.getActions()) {
if (name.equals(action.getValue(Action.NAME).toString())) {
return action;
}
}
return null;
}
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);
}
public void redoAction() {
try {
if (undoMgr.canRedo()) {
redoAction.actionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "Redo"));
setRedoItem();
} else {
java.awt.Toolkit.getDefaultToolkit().beep();
}
} catch (CannotUndoException ex) {
ex.printStackTrace();
}
}
public void selectLine() {
Action selectLine = getAction(DefaultEditorKit.selectLineAction);
if (selectLine != null) {
selectLine.actionPerformed(null);
}
}
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();
}
@Override
public void show(Component c, int x, int y) {
int[] l = table.getSelectedRows();
deleteAction.setEnabled(l.length > 0);
super.show(c, x, y);
}
// ------------------------------------------------------------------------
TextViewer(JFrame inParentFrame) {
// super(true); //is double buffered - only for panels
textViewerFrame = this;
parentFrame = inParentFrame;
lastViewedDirStr = "";
lastViewedFileStr = "";
setTitle(resources.getString("Title"));
addWindowListener(new AppCloser());
pack();
setSize(500, 600);
warningPopup = new WarningDialog(this);
okCancelPopup = new WarningDialogOkCancel(this);
messagePopup = new MessageDialog(this);
okCancelMessagePopup = new MessageDialogOkCancel(this);
// Force SwingSet to come up in the Cross Platform L&F
try {
UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
// If you want the System L&F instead, comment out the above line and
// uncomment the following:
// UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception exc) {
String errstr = "TextViewer:Error loading L&F: " + exc;
warningPopup.display(errstr);
}
Container cf = getContentPane();
cf.setBackground(Color.lightGray);
// Border etched=BorderFactory.createEtchedBorder();
// Border title=BorderFactory.createTitledBorder(etched,"TextViewer");
// cf.setBorder(title);
cf.setLayout(new BorderLayout());
// create the embedded JTextComponent
editor1 = createEditor();
editor1.setFont(new Font("monospaced", Font.PLAIN, 12));
// aa -added next line
setPlainDocument((PlainDocument) editor1.getDocument()); // sets doc1
// install the command table
commands = new Hashtable();
Action[] actions = getActions();
for (int i = 0; i < actions.length; i++) {
Action a = actions[i];
commands.put(a.getValue(Action.NAME), a);
// System.out.println("Debug:TextViewer: actionName:"+a.getValue(Action.NAME));
}
// editor1.setPreferredSize(new Dimension(,));
// get setting from user preferences
if (UserPref.keymapType.equals("Word")) {
editor1 = updateKeymapForWord(editor1);
} else {
editor1 = updateKeymapForEmacs(editor1);
}
scroller1 = new JScrollPane();
viewport1 = scroller1.getViewport();
viewport1.add(editor1);
scroller1.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
scroller1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
try {
String vpFlag = resources.getString("ViewportBackingStore");
Boolean bs = new Boolean(vpFlag);
viewport1.setBackingStoreEnabled(bs.booleanValue());
} catch (MissingResourceException mre) {
System.err.println("TextViewer:missing resource:" + mre.getMessage());
// just use the viewport1 default
}
menuItems = new Hashtable();
menubar = createMenubar();
lowerPanel = new JPanel(true); // moved double buffering to here
lowerPanel.setLayout(new BorderLayout());
lowerPanel.add("North", createToolbar());
lowerPanel.add("Center", scroller1);
cf.add("North", menubar);
cf.add("Center", lowerPanel);
cf.add("South", createStatusbar());
// for the find/search utilities
mySearchDialog = new SearchDialog(this);
// System.out.println("Debug:TextViewer: end of TextViewer constructor");
}
