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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This version represents the developer version, the
"bleeding edge" of development, you could say. New functionality gets added
to this version.
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see m_Actions;
/** the new action. */
protected NewAction m_NewAction;
/** the open action. */
protected OpenAction m_OpenAction;
/** the Save action. */
protected SaveAction m_SaveAction;
/** the Save as action. */
protected SaveAction m_SaveAsAction;
/** the Print action. */
protected PrintAction m_PrintAction;
/** the clear output action. */
protected ClearOutputAction m_ClearOutputAction;
/** the exit action. */
protected ExitAction m_ExitAction;
/** the undo action. */
protected UndoAction m_UndoAction;
/** the redo action. */
protected RedoAction m_RedoAction;
/** the cut action. */
protected Action m_CutAction;
/** the copy action. */
protected Action m_CopyAction;
/** the paste action. */
protected Action m_PasteAction;
/** the start action. */
protected StartAction m_StartAction;
/** the stop action. */
protected StopAction m_StopAction;
/** the arguments action. */
protected CommandlineArgsAction m_ArgsAction;
/** the about action. */
protected AboutAction m_AboutAction;
/** the undo manager. */
protected UndoManager m_Undo;
/** the text pane with the code. */
protected JTextPane m_TextCode;
/** the text pane for the output. */
protected JTextPane m_TextOutput;
/** the commandline arguments to use. */
protected String[] m_Args;
/**
* For initializing member variables.
*/
protected void initialize() {
super.initialize();
m_FileChooser = new WekaFileChooser();
m_FileChooser.setAcceptAllFileFilterUsed(true);
m_FileChooser.setMultiSelectionEnabled(false);
m_Undo = new UndoManager();
m_Args = new String[0];
}
/**
* Sets up the GUI after initializing the members.
*/
protected void initGUI() {
JPanel panel;
super.initGUI();
setLayout(new BorderLayout(0, 5));
m_TextCode = newCodePane();
m_TextCode.setFont(new Font("monospaced", Font.PLAIN, 12));
m_TextCode.getDocument().addUndoableEditListener(new ScriptUndoableEditListener());
m_TextCode.getDocument().addDocumentListener(new DocumentListener() {
public void changedUpdate(DocumentEvent e) {
update();
}
public void insertUpdate(DocumentEvent e) {
update();
}
public void removeUpdate(DocumentEvent e) {
update();
}
protected void update() {
Document doc = m_TextCode.getDocument();
m_StartAction.setEnabled((doc.getLength() > 0) && m_Script.canExecuteScripts());
m_SaveAction.setEnabled(true);
notifyTitleUpdatedListeners(new TitleUpdatedEvent(FileScriptingPanel.this));
}
});
add(new JScrollPane(m_TextCode), BorderLayout.CENTER);
panel = new JPanel(new BorderLayout(0, 5));
panel.setPreferredSize(new Dimension(50, 200));
add(panel, BorderLayout.SOUTH);
m_TextOutput = new JTextPane();
panel.add(new JScrollPane(m_TextOutput), BorderLayout.CENTER);
m_LabelInfo = new JLabel(" ");
m_LabelInfo.setBorder(BorderFactory.createLoweredBevelBorder());
panel.add(m_LabelInfo, BorderLayout.SOUTH);
}
/**
* Finishes up after initializing members and setting up the GUI.
*/
protected void initFinish() {
ExtensionFileFilter[] filters;
int i;
super.initFinish();
m_Script = newScript(m_TextCode.getDocument());
m_Script.addScriptFinishedListener(this);
filters = m_Script.getFilters();
for (i = filters.length - 1; i >= 0; i--)
m_FileChooser.addChoosableFileFilter(filters[i]);
m_Actions = createActionTable(m_TextCode);
// file
m_NewAction = new NewAction();
m_OpenAction = new OpenAction();
m_SaveAction = new SaveAction("Save", false);
m_SaveAsAction = new SaveAction("Save As...", true);
m_PrintAction = new PrintAction();
m_ClearOutputAction = new ClearOutputAction();
m_ExitAction = new ExitAction();
// edit
m_UndoAction = new UndoAction();
m_RedoAction = new RedoAction();
m_CutAction = updateAction(m_Actions.get(DefaultEditorKit.cutAction), "Cut", "cut.gif", "ctrl X", 'C');
m_CopyAction = updateAction(m_Actions.get(DefaultEditorKit.copyAction), "Copy", "copy.gif", "ctrl C", 'o');
m_PasteAction = updateAction(m_Actions.get(DefaultEditorKit.pasteAction), "Paste", "paste.gif", "ctrl V", 'P');
// script
m_StartAction = new StartAction();
m_StopAction = new StopAction();
m_ArgsAction = new CommandlineArgsAction();
// help
m_AboutAction = new AboutAction();
}
/**
* Updates the action and returns it.
*
* @param action the action to update
* @param name the name to be used as display, can be null
* @param icon the icon to use (if located in weka/gui/images, not path required), can be null
* @param accel the accelerator command to use (e.g., "ctrl N"), can be null
* @param mnemonic the mnemonic character to use, can be null
* @return the updated action
*/
protected Action updateAction(Action action, String name, String icon, String accel, Character mnemonic) {
Action result;
// did we already update that action for another component?
if (action == null) {
result = m_Actions.get(name);
return result;
}
result = action;
if ((name != null) && (name.length() > 0))
result.putValue(Action.NAME, name);
if ((icon != null) && (icon.length() > 0))
result.putValue(Action.SMALL_ICON, ComponentHelper.getImageIcon(icon));
if ((accel != null) && (accel.length() > 0))
result.putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(accel));
if (mnemonic != null)
result.putValue(Action.MNEMONIC_KEY, new Integer(mnemonic.charValue()));
return result;
}
/**
* Creates a new JTextPane for the code.
*
* @return the text pane
*/
protected abstract JTextPane newCodePane();
/**
* Returns an initialized script object.
*
* @param doc the document to use as basis
* @return the initialized script
*/
protected abstract Script newScript(Document doc);
/**
* Gets sent when a script finishes execution.
*
* @param e the event
*/
public void scriptFinished(ScriptExecutionEvent e) {
if (e.getType() == Type.FINISHED)
showInfo("Script execution finished");
else if (e.getType() == Type.STOPPED)
showInfo("Script execution stopped by user");
else if (e.getType() == Type.ERROR)
showInfo("Script execution failed" + (e.hasAdditional() ? (": " + e.getAdditional()) : ""));
if (e.getType() != Type.STARTED) {
m_NewAction.setEnabled(true);
m_OpenAction.setEnabled(true);
m_SaveAction.setEnabled(true);
m_SaveAsAction.setEnabled(true);
m_CutAction.setEnabled(true);
m_CopyAction.setEnabled(true);
m_PasteAction.setEnabled(true);
m_StartAction.setEnabled(true);
m_StopAction.setEnabled(false);
}
else {
m_NewAction.setEnabled(false);
m_OpenAction.setEnabled(false);
m_SaveAction.setEnabled(false);
m_SaveAsAction.setEnabled(false);
m_CutAction.setEnabled(false);
m_CopyAction.setEnabled(false);
m_PasteAction.setEnabled(false);
m_StartAction.setEnabled(false);
m_StopAction.setEnabled(true);
}
}
/**
* The following two methods allow us to find an
* action provided by the editor kit by its name.
*
* @param comp the component to get the actions from
* @return the relation
*/
protected HashMap createActionTable(JTextComponent comp) {
HashMap result;
int i;
Action[] actions;
Action action;
result = new HashMap();
actions = comp.getActions();
for (i = 0; i < actions.length; i++) {
action = actions[i];
result.put(action.getValue(Action.NAME), action);
}
return result;
}
/**
* Returns a panel to be displayed with the AboutAction.
*
* @return the panel with some information on the scripting panel
*/
protected abstract JPanel getAboutPanel();
/**
* Returns the title (without the filename).
*
* @return the plain title
*/
public abstract String getPlainTitle();
/**
* Returns the current title for the frame/dialog.
*
* @return the title
*/
public String getTitle() {
String result;
result = getPlainTitle();
if (m_Script.isModified())
result = "*" + result;
if (m_Script.getFilename() != null)
result += " [" + m_Script.getFilename() + "]";
return result;
}
/**
* Returns the text area that is used for displaying output on stdout
* and stderr.
*
* @return the JTextArea
*/
public JTextPane getOutput() {
return m_TextOutput;
}
/**
* Returns the menu bar to to be displayed in the frame.
*
* @return the menu bar, null if not applicable
*/
public JMenuBar getMenuBar() {
JMenuBar result;
JMenu menu;
JMenuItem menuitem;
result = new JMenuBar();
// File
menu = new JMenu("File");
menu.setMnemonic('F');
result.add(menu);
// File/New
menuitem = new JMenuItem(m_NewAction);
menu.add(menuitem);
// File/Open
menuitem = new JMenuItem(m_OpenAction);
menu.addSeparator();
menu.add(menuitem);
// File/Save
menuitem = new JMenuItem(m_SaveAction);
menu.add(menuitem);
// File/SaveAs
menuitem = new JMenuItem(m_SaveAsAction);
menu.add(menuitem);
// File/Print
menuitem = new JMenuItem(m_PrintAction);
menu.addSeparator();
menu.add(menuitem);
// File/Clear output
menuitem = new JMenuItem(m_ClearOutputAction);
menu.addSeparator();
menu.add(menuitem);
// File/Exit
menuitem = new JMenuItem(m_ExitAction);
menu.addSeparator();
menu.add(menuitem);
// Edit
menu = new JMenu("Edit");
menu.setMnemonic('E');
result.add(menu);
// Edit/Undo
menuitem = new JMenuItem(m_UndoAction);
menu.add(menuitem);
// Edit/Redo
menuitem = new JMenuItem(m_RedoAction);
menu.add(menuitem);
// Edit/Cut
menuitem = new JMenuItem(m_CutAction);
menu.addSeparator();
menu.add(menuitem);
// Edit/Copy
menuitem = new JMenuItem(m_CopyAction);
menu.add(menuitem);
// Edit/Paste
menuitem = new JMenuItem(m_PasteAction);
menu.add(menuitem);
// Script
menu = new JMenu("Script");
menu.setMnemonic('S');
result.add(menu);
// Script/Start
menuitem = new JMenuItem(m_StartAction);
menu.add(menuitem);
// Script/Stop
menuitem = new JMenuItem(m_StopAction);
menu.add(menuitem);
// Script/Arguments
menuitem = new JMenuItem(m_ArgsAction);
menu.add(menuitem);
// Help
menu = new JMenu("Help");
menu.setMnemonic('H');
result.add(menu);
// Help/About
menuitem = new JMenuItem(m_AboutAction);
menu.add(menuitem);
return result;
}
/**
* Updates the info shown in the bottom panel.
*
* @param msg the message to display
*/
protected void showInfo(String msg) {
if (msg == null)
msg = " ";
m_LabelInfo.setText(msg);
}
/**
* Opens the specified file.
*
* @param file the file to open
*/
public void open(File file) {
m_Script.open(file);
}
/**
* Checks whether the script is modified and asks the user to save it or not.
* If everything is fine and one can ignore the modified state, true is
* returned.
*
* @return true if one can proceed
*/
protected boolean checkModified() {
boolean result;
int retVal;
result = true;
if (m_Script.isModified()) {
retVal = JOptionPane.showConfirmDialog(
FileScriptingPanel.this,
"Script not saved - save it now?",
"Confirm",
JOptionPane.YES_NO_CANCEL_OPTION);
if (retVal == JOptionPane.YES_OPTION) {
if (m_Script.getFilename() != null)
m_Script.save();
else
m_SaveAsAction.actionPerformed(null);
result = !m_Script.isModified();
}
else if (retVal == JOptionPane.CANCEL_OPTION) {
result = false;
}
}
return result;
}
}
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