public void actionPerformed(ActionEvent e) {
// Handle open button action.
if (e.getSource() == openButton) {
int returnVal = fc.showOpenDialog(FileChooserDemo.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
// This is where a real application would open the file.
log.append("Opening: " + file.getName() + "." + newline);
} else {
log.append("Open command cancelled by user." + newline);
}
log.setCaretPosition(log.getDocument().getLength());
// Handle save button action.
} else if (e.getSource() == saveButton) {
int returnVal = fc.showSaveDialog(FileChooserDemo.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
// This is where a real application would save the file.
log.append("Saving: " + file.getName() + "." + newline);
} else {
log.append("Save command cancelled by user." + newline);
}
log.setCaretPosition(log.getDocument().getLength());
}
}
/** The listener method. */
public void actionPerformed(ActionEvent event) {
Object source = event.getSource();
if (source == b1) // click button
{
try {
String message = tf.getText();
server.sendPrivateMessage(parent, selfIdentity, message);
ta.append("<" + parent.getUserName() + ">: " + message + lineSeparator);
ta.setCaretPosition(ta.getText().length());
tf.setText("");
} catch (RemoteException ex) {
System.out.print("Exception encountered while sending" + " private message.");
}
}
if (source == tf) // press return
{
try {
String message = tf.getText();
server.sendPrivateMessage(parent, selfIdentity, message);
ta.append("<" + parent.getUserName() + ">: " + message + lineSeparator);
ta.setCaretPosition(ta.getText().length());
tf.setText("");
} catch (RemoteException ex) {
System.out.print("Exception encountered while sending" + " private message.");
}
}
if (source == jMenuItem3) {
JFileChooser fileChooser = new JFileChooser();
fileChooser.setDialogTitle("Choose or create a new file to store the conversation");
fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
fileChooser.setDoubleBuffered(true);
fileChooser.showOpenDialog(this);
File file = fileChooser.getSelectedFile();
try {
if (file != null) {
Writer writer = new BufferedWriter(new FileWriter(file));
writer.write(ta.getText());
writer.flush();
writer.close();
}
} catch (IOException ex) {
System.out.println("Can't write to file. " + ex);
}
}
if (source == jMenuItem4) {
selfRemove();
this.dispose();
}
}
static void log(String message) {
if (resetFlag){
logArea.setText("");
miniLogArea.setText("");
}
resetFlag = (message.length() == 0);
logArea.append(message + "\n");
miniLogArea.append(message + "\n");
logArea.setCaretPosition(logArea.getDocument().getLength());
miniLogArea.setCaretPosition(miniLogArea.getDocument().getLength());
}
/**
* Add a line of text to the transcript area.
*
* @param message text to be added; two line feeds is added at the end.
*/
private void postMessage(String message) {
transcript.append(message + "\n\n");
// The following line is a nasty kludge that was the only way I could find to force
// the transcript to scroll so that the text that was just added is visible in
// the window. Without this, text can be added below the bottom of the visible area
// of the transcript.
transcript.setCaretPosition(transcript.getDocument().getLength());
}
public void valueChanged(ListSelectionEvent event) {
if (table.getSelectedRow() == -1) textArea.setText(null);
else {
TableItem item = table.getTableItemAt(table.getSelectedRow());
textArea.setText(item.toString());
}
textArea.setCaretPosition(0);
}
public LicenseDialog(Component parent) {
setTitle("Licensing information");
pnlButtons.add(bttnOk);
cbLang.addItem("English");
cbLang.addItem("Eesti");
FlowLayout fl = new FlowLayout();
fl.setAlignment(FlowLayout.LEFT);
pnlHeader.setLayout(fl);
pnlHeader.add(lblLang);
pnlHeader.add(cbLang);
pnlMain.setLayout(new BorderLayout());
pnlMain.add(pnlHeader, BorderLayout.NORTH);
pnlMain.add(scrollPane, BorderLayout.CENTER);
pnlMain.add(pnlButtons, BorderLayout.SOUTH);
taLicenseText.setText(getLicenseText());
taLicenseText.setCaretPosition(0);
taLicenseText.setLineWrap(true);
taLicenseText.setEditable(false);
taLicenseText.setWrapStyleWord(true);
getContentPane().add(pnlMain);
setPreferredSize(new Dimension(500, 600));
setLocationRelativeTo(parent);
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
bttnOk.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
if (evt.getSource() == bttnOk) {
dispose();
}
} // end actionPerformed
}); // end bttnOk Action Listener
cbLang.addItemListener(
new ItemListener() {
public void itemStateChanged(final ItemEvent event) {
if (event.getSource() == cbLang
&& event.getStateChange() == ItemEvent.SELECTED
&& cbLang.getItemCount() > 0) {
taLicenseText.setText(getLicenseText());
taLicenseText.setCaretPosition(0);
}
}
}); // end cbLang item listener
pack();
setVisible(true);
} // PortPropertiesDialog
public void actionPerformed(ActionEvent evt) {
String text = textField.getText();
textArea.append(text + newline);
textField.selectAll();
// Make sure the new text is visible, even if there
// was a selection in the text area.
textArea.setCaretPosition(textArea.getDocument().getLength());
}
/**
* Updates all of the components in the panel to match that of the associated Artifact.
*
* @see #ArtifactView(Artifact, DataProvider)
*/
public void rebuild() {
title.setText(SHTML + TITLE + elem.title + EHTML);
donor.setText(SHTML + DONOR + elem.donor + EHTML);
subDate.setText(SHTML + SUB_DATE + elem.subDate.toString() + EHTML);
objDate.setText(SHTML + OBJ_DATE + elem.objDate.toString() + EHTML);
medium.setText(SHTML + MEDIUM + elem.medium + EHTML);
accNum.setText(SHTML + ACC_NUM + elem.accNum + EHTML);
descView.setText(elem.desc);
descView.setCaretPosition(0);
validate();
}
private void breakpointHit(char pc) {
registersModel.fireUpdate();
memoryModel.fireUpdate(0, RAM_SIZE - 1); // TODO optimize
Integer srcline = asmMap.bin2src(pc);
if (srcline != null) {
try {
sourceTextarea.requestFocus();
sourceTextarea.setCaretPosition(sourceTextarea.getLineStartOffset(srcline - 1));
} catch (BadLocationException e) {
e.printStackTrace();
}
}
}
private void showHelp(String help[]) {
txtCommand.setText(help[0]);
bHelp = true;
pResult.removeAll();
pResult.add(txtResultScroll, BorderLayout.CENTER);
pResult.doLayout();
txtResult.setText(help[1]);
pResult.repaint();
txtCommand.requestFocus();
txtCommand.setCaretPosition(help[0].length());
}
/**
* Post a message to the assembler display
*
* @param message String to append to assembler display text
*/
public void postMarsMessage(String message) {
assemble.append(message);
// can do some crude cutting here. If the document gets "very large",
// let's cut off the oldest text. This will limit scrolling but the limit
// can be set reasonably high.
if (assemble.getDocument().getLength() > MAXIMUM_SCROLLED_CHARACTERS) {
try {
assemble.getDocument().remove(0, NUMBER_OF_CHARACTERS_TO_CUT);
} catch (BadLocationException ble) {
// only if NUMBER_OF_CHARACTERS_TO_CUT > MAXIMUM_SCROLLED_CHARACTERS
}
}
assemble.setCaretPosition(assemble.getDocument().getLength());
setSelectedComponent(assembleTab);
}
/**
* Appends each string in the new_strings parameter as a new line in the text area. Sets the caret
* is set to the beginning of the text.
*
* @param new_strings The strings to add. Each entry is added to a new line. This method performs
* no action if this parameter is empty or null.
*/
public void appendStrings(String[] new_strings) {
if (new_strings != null)
if (new_strings.length != 0) {
// Append the text
for (int i = 0; i < new_strings.length; i++) {
if (i == 0) {
if (!text_area.getText().equals("")) text_area.append("\n");
} else text_area.append("\n");
text_area.append(new_strings[i]);
}
// Reset the caret position
text_area.setCaretPosition(0);
}
}
public void actionPerformed(ActionEvent e) {
// Handle open button action.
if (e.getSource() == openButton) {
int returnVal = fc.showOpenDialog(DirectorySize.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
// This is where a real application would open the file.
ListSubDirectorySizes(file);
} else {
log.append("Open command cancelled by user." + newline);
}
log.setCaretPosition(log.getDocument().getLength());
// Handle save button action.
} else if (e.getSource() == saveButton) {
log.setText(""); // reset
}
}
/** Update the merged BibtexEntry with source and preview panel everytime something is changed */
private void updateAll() {
if (!doneBuilding) {
// If we've not done adding everything, do not do anything...
return;
}
// Check if the type is changed
if (!identical[0]) {
if (rb[0][0].isSelected()) {
mergedEntry.setType(one.getType());
} else {
mergedEntry.setType(two.getType());
}
}
// Check all fields
for (int i = 0; i < joint.size(); i++) {
if (!identical[i + 1]) {
if (rb[0][i + 1].isSelected()) {
mergedEntry.setField(jointStrings[i], one.getField(jointStrings[i]));
} else if (rb[2][i + 1].isSelected()) {
mergedEntry.setField(jointStrings[i], two.getField(jointStrings[i]));
} else {
mergedEntry.setField(jointStrings[i], null);
}
}
}
// Update the PreviewPanel
pp.setEntry(mergedEntry);
// Update the Bibtex source view
StringWriter sw = new StringWriter();
try {
new BibtexEntryWriter(new LatexFieldFormatter(), false).write(mergedEntry, sw);
} catch (IOException ex) {
LOGGER.error("Error in entry" + ": " + ex.getMessage(), ex);
}
jta.setText(sw.getBuffer().toString());
jta.setCaretPosition(0);
}
public boolean loadSourceFile(File file) {
boolean result = false;
selectedPath = file.getParent();
BufferedReader sourceFile = null;
String directoryPath = file.getParent();
String sourceName = file.getName();
int idx = sourceName.lastIndexOf(".");
fileExt = idx == -1 ? "" : sourceName.substring(idx + 1);
baseName = idx == -1 ? sourceName.substring(0) : sourceName.substring(0, idx);
String basePath = directoryPath + File.separator + baseName;
DataOptions.directoryPath = directoryPath;
sourcePath = file.getPath();
AssemblerOptions.sourcePath = sourcePath;
AssemblerOptions.listingPath = basePath + ".lst";
AssemblerOptions.objectPath = basePath + ".cd";
String var = System.getenv("ROPE_MACROS_DIR");
if (var != null && !var.isEmpty()) {
File dir = new File(var);
if (dir.exists() && dir.isDirectory()) {
AssemblerOptions.macroPath = var;
} else {
AssemblerOptions.macroPath = directoryPath;
}
} else {
AssemblerOptions.macroPath = directoryPath;
}
DataOptions.inputPath = AssemblerOptions.objectPath;
DataOptions.outputPath = basePath + ".out";
DataOptions.readerPath = null;
DataOptions.punchPath = basePath + ".pch";
DataOptions.tape1Path = basePath + ".mt1";
DataOptions.tape2Path = basePath + ".mt2";
DataOptions.tape3Path = basePath + ".mt3";
DataOptions.tape4Path = basePath + ".mt4";
DataOptions.tape5Path = basePath + ".mt5";
DataOptions.tape6Path = basePath + ".mt6";
this.setTitle("EDIT: " + sourceName);
fileText.setText(sourcePath);
if (dialog == null) {
dialog = new AssemblerDialog(mainFrame, "Assembler options");
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension dialogSize = dialog.getSize();
dialog.setLocation(
(screenSize.width - dialogSize.width) / 2, (screenSize.height - dialogSize.height) / 2);
}
dialog.initialize();
AssemblerOptions.command = dialog.buildCommand();
sourceArea.setText(null);
try {
sourceFile = new BufferedReader(new FileReader(file));
String line;
while ((line = sourceFile.readLine()) != null) {
sourceArea.append(line + "\n");
}
sourceArea.setCaretPosition(0);
optionsButton.setEnabled(true);
assembleButton.setEnabled(true);
saveButton.setEnabled(true);
setSourceChanged(false);
undoMgr.discardAllEdits();
result = true;
} catch (IOException ex) {
ex.printStackTrace();
} finally {
try {
if (sourceFile != null) {
sourceFile.close();
}
} catch (IOException ignore) {
}
}
return result;
}
public SwingUpdaterUI(String oldBuildDesc, String newBuildDesc, InstallOperation operation) {
myOperation = operation;
myProcessTitle = new JLabel(" ");
myProcessProgress = new JProgressBar(0, 100);
myProcessStatus = new JLabel(" ");
myCancelButton = new JButton(CANCEL_BUTTON_TITLE);
myConsole = new JTextArea();
myConsole.setLineWrap(true);
myConsole.setWrapStyleWord(true);
myConsole.setCaretPosition(myConsole.getText().length());
myConsole.setTabSize(1);
myConsolePane = new JPanel(new BorderLayout());
myConsolePane.add(new JScrollPane(myConsole));
myConsolePane.setBorder(BUTTONS_BORDER);
myConsolePane.setVisible(false);
myCancelButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
doCancel();
}
});
myFrame = new JFrame();
myFrame.setTitle(TITLE);
myFrame.setLayout(new BorderLayout());
myFrame.getRootPane().setBorder(FRAME_BORDER);
myFrame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
myFrame.addWindowListener(
new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
doCancel();
}
});
JPanel processPanel = new JPanel();
processPanel.setLayout(new BoxLayout(processPanel, BoxLayout.Y_AXIS));
processPanel.add(myProcessTitle);
processPanel.add(myProcessProgress);
processPanel.add(myProcessStatus);
processPanel.add(myConsolePane);
for (Component each : processPanel.getComponents()) {
((JComponent) each).setAlignmentX(Component.LEFT_ALIGNMENT);
}
JPanel buttonsPanel = new JPanel();
buttonsPanel.setBorder(BUTTONS_BORDER);
buttonsPanel.setLayout(new BoxLayout(buttonsPanel, BoxLayout.X_AXIS));
buttonsPanel.add(Box.createHorizontalGlue());
buttonsPanel.add(myCancelButton);
myProcessTitle.setText("<html>Updating " + oldBuildDesc + " to " + newBuildDesc + "...");
myFrame.add(processPanel, BorderLayout.CENTER);
myFrame.add(buttonsPanel, BorderLayout.SOUTH);
myFrame.setMinimumSize(new Dimension(500, 50));
myFrame.pack();
myFrame.setLocationRelativeTo(null);
myFrame.setVisible(true);
myQueue.add(
new UpdateRequest() {
@Override
public void perform() {
doPerform();
}
});
startRequestDispatching();
}
void appendRoom(String str) {
chat.append(str);
chat.setCaretPosition(chat.getText().length() - 1);
}
void appendEvent(String str) {
event.append(str);
event.setCaretPosition(chat.getText().length() - 1);
}
/*
* @param String s - send s to output textArea
*/
public void setOutput(String s) {
// if (debugBoardPanel) {
bottomText.append("\n" + s);
bottomText.setCaretPosition(bottomText.getDocument().getLength());
// }
}
/** Main function for building the merge entry JPanel */
private void initialize() {
joint = new TreeSet<>(one.getFieldNames());
joint.addAll(two.getFieldNames());
// Remove field starting with __
TreeSet<String> toberemoved = new TreeSet<>();
for (String field : joint) {
if (field.startsWith("__")) {
toberemoved.add(field);
}
}
for (String field : toberemoved) {
joint.remove(field);
}
// Create storage arrays
rb = new JRadioButton[3][joint.size() + 1];
ButtonGroup[] rbg = new ButtonGroup[joint.size() + 1];
identical = new Boolean[joint.size() + 1];
jointStrings = new String[joint.size()];
// Create main layout
String colSpecMain =
"left:pref, 5px, center:3cm:grow, 5px, center:pref, 3px, center:pref, 3px, center:pref, 5px, center:3cm:grow";
String colSpecMerge =
"left:pref, 5px, fill:3cm:grow, 5px, center:pref, 3px, center:pref, 3px, center:pref, 5px, fill:3cm:grow";
String rowSpec = "pref, pref, 10px, fill:5cm:grow, 10px, pref, 10px, fill:3cm:grow";
StringBuilder rowBuilder = new StringBuilder("");
for (int i = 0; i < joint.size(); i++) {
rowBuilder.append("pref, ");
}
rowBuilder.append("pref");
FormLayout mainLayout = new FormLayout(colSpecMain, rowSpec);
FormLayout mergeLayout = new FormLayout(colSpecMerge, rowBuilder.toString());
mainPanel.setLayout(mainLayout);
mergePanel.setLayout(mergeLayout);
JLabel label = new JLabel(Localization.lang("Use"));
Font font = label.getFont();
label.setFont(font.deriveFont(font.getStyle() | Font.BOLD));
mainPanel.add(label, cc.xyw(4, 1, 7, "center, bottom"));
// Set headings
JLabel headingLabels[] = new JLabel[6];
for (int i = 0; i < 6; i++) {
headingLabels[i] = new JLabel(columnHeadings[i]);
font = headingLabels[i].getFont();
headingLabels[i].setFont(font.deriveFont(font.getStyle() | Font.BOLD));
mainPanel.add(headingLabels[i], cc.xy(1 + (i * 2), 2));
}
mainPanel.add(new JSeparator(), cc.xyw(1, 3, 11));
// Start with entry type
EntryType type1 = one.getType();
EntryType type2 = two.getType();
mergedEntry.setType(type1);
label = new JLabel(Localization.lang("Entry type"));
font = label.getFont();
label.setFont(font.deriveFont(font.getStyle() | Font.BOLD));
mergePanel.add(label, cc.xy(1, 1));
JTextArea type1ta = new JTextArea(type1.getName());
type1ta.setEditable(false);
mergePanel.add(type1ta, cc.xy(3, 1));
if (type1.compareTo(type2) != 0) {
identical[0] = false;
rbg[0] = new ButtonGroup();
for (int k = 0; k < 3; k += 2) {
rb[k][0] = new JRadioButton();
rbg[0].add(rb[k][0]);
mergePanel.add(rb[k][0], cc.xy(5 + (k * 2), 1));
rb[k][0].addChangeListener(
new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
updateAll();
}
});
}
rb[0][0].setSelected(true);
} else {
identical[0] = true;
}
JTextArea type2ta = new JTextArea(type2.getName());
type2ta.setEditable(false);
mergePanel.add(type2ta, cc.xy(11, 1));
// For all fields in joint add a row and possibly radio buttons
int row = 2;
int maxLabelWidth = -1;
int tmpLabelWidth = 0;
for (String field : joint) {
jointStrings[row - 2] = field;
label = new JLabel(CaseChangers.UPPER_FIRST.format(field));
font = label.getFont();
label.setFont(font.deriveFont(font.getStyle() | Font.BOLD));
mergePanel.add(label, cc.xy(1, row));
String string1 = one.getField(field);
String string2 = two.getField(field);
identical[row - 1] = false;
if ((string1 != null) && (string2 != null)) {
if (string1.equals(string2)) {
identical[row - 1] = true;
}
}
tmpLabelWidth = label.getPreferredSize().width;
if (tmpLabelWidth > maxLabelWidth) {
maxLabelWidth = tmpLabelWidth;
}
if ("abstract".equals(field) || "review".equals(field)) {
// Treat the abstract and review fields special
JTextArea tf = new JTextArea();
tf.setLineWrap(true);
tf.setEditable(false);
JScrollPane jsptf = new JScrollPane(tf);
mergeLayout.setRowSpec(row, RowSpec.decode("center:2cm:grow"));
mergePanel.add(jsptf, cc.xy(3, row, "f, f"));
tf.setText(string1);
tf.setCaretPosition(0);
} else {
JTextArea tf = new JTextArea(string1);
mergePanel.add(tf, cc.xy(3, row));
tf.setCaretPosition(0);
tf.setEditable(false);
}
// Add radio buttons if the two entries do not have identical fields
if (!identical[row - 1]) {
rbg[row - 1] = new ButtonGroup();
for (int k = 0; k < 3; k++) {
rb[k][row - 1] = new JRadioButton();
rbg[row - 1].add(rb[k][row - 1]);
mergePanel.add(rb[k][row - 1], cc.xy(5 + (k * 2), row));
rb[k][row - 1].addChangeListener(
new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
updateAll();
}
});
}
if (string1 != null) {
mergedEntry.setField(field, string1);
rb[0][row - 1].setSelected(true);
if (string2 == null) {
rb[2][row - 1].setEnabled(false);
}
} else {
rb[0][row - 1].setEnabled(false);
mergedEntry.setField(field, string2);
rb[2][row - 1].setSelected(true);
}
} else {
mergedEntry.setField(field, string1);
}
if ("abstract".equals(field) || "review".equals(field)) {
// Again, treat abstract and review special
JTextArea tf = new JTextArea();
tf.setLineWrap(true);
tf.setEditable(false);
JScrollPane jsptf = new JScrollPane(tf);
mergePanel.add(jsptf, cc.xy(11, row, "f, f"));
tf.setText(string2);
tf.setCaretPosition(0);
} else {
JTextArea tf = new JTextArea(string2);
mergePanel.add(tf, cc.xy(11, row));
tf.setCaretPosition(0);
tf.setEditable(false);
}
row++;
}
JScrollPane scrollPane =
new JScrollPane(
mergePanel,
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
scrollPane.setBorder(BorderFactory.createEmptyBorder());
mainPanel.add(scrollPane, cc.xyw(1, 4, 11));
mainPanel.add(new JSeparator(), cc.xyw(1, 5, 11));
// Synchronize column widths
String rbAlign[] = {"right", "center", "left"};
mainLayout.setColumnSpec(1, ColumnSpec.decode(Integer.toString(maxLabelWidth) + "px"));
Integer maxRBWidth = -1;
Integer tmpRBWidth;
for (int k = 0; k < 3; k++) {
tmpRBWidth = headingLabels[k + 2].getPreferredSize().width;
if (tmpRBWidth > maxRBWidth) {
maxRBWidth = tmpRBWidth;
}
}
for (int k = 0; k < 3; k++) {
mergeLayout.setColumnSpec(
5 + (k * 2), ColumnSpec.decode(rbAlign[k] + ":" + maxRBWidth + "px"));
}
// Setup a PreviewPanel and a Bibtex source box for the merged entry
label = new JLabel(Localization.lang("Merged entry"));
font = label.getFont();
label.setFont(font.deriveFont(font.getStyle() | Font.BOLD));
mainPanel.add(label, cc.xyw(1, 6, 6));
String layoutString = Globals.prefs.get(JabRefPreferences.PREVIEW_0);
pp = new PreviewPanel(null, mergedEntry, null, new MetaData(), layoutString);
// JScrollPane jsppp = new JScrollPane(pp, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
// JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
mainPanel.add(pp, cc.xyw(1, 8, 6));
label = new JLabel(Localization.lang("Merged BibTeX source code"));
font = label.getFont();
label.setFont(font.deriveFont(font.getStyle() | Font.BOLD));
mainPanel.add(label, cc.xyw(8, 6, 4));
jta = new JTextArea();
jta.setLineWrap(true);
JScrollPane jspta = new JScrollPane(jta);
mainPanel.add(jspta, cc.xyw(8, 8, 4));
jta.setEditable(false);
StringWriter sw = new StringWriter();
try {
new BibtexEntryWriter(new LatexFieldFormatter(), false).write(mergedEntry, sw);
} catch (IOException ex) {
LOGGER.error("Error in entry" + ": " + ex.getMessage(), ex);
}
jta.setText(sw.getBuffer().toString());
jta.setCaretPosition(0);
// Add some margin around the layout
mainLayout.appendRow(RowSpec.decode("10px"));
mainLayout.appendColumn(ColumnSpec.decode("10px"));
mainLayout.insertRow(1, RowSpec.decode("10px"));
mainLayout.insertColumn(1, ColumnSpec.decode("10px"));
if (mainPanel.getHeight() > DIM.height) {
mainPanel.setSize(new Dimension(mergePanel.getWidth(), DIM.height));
}
if (mainPanel.getWidth() > DIM.width) {
mainPanel.setSize(new Dimension(DIM.width, mergePanel.getHeight()));
}
// Everything done, allow any action to actually update the merged entry
doneBuilding = true;
// Show what we've got
mainPanel.setVisible(true);
javax.swing.SwingUtilities.invokeLater(
new Runnable() {
@Override
public void run() {
scrollPane.getVerticalScrollBar().setValue(0);
}
});
}
public void setBodyText(String text) {
mailBodyArea.setText(text);
mailBodyArea.setCaretPosition(0);
}
public void setup() {
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
title = new JLabel(SHTML + TITLE + elem.title + EHTML);
gbc.fill = GridBagConstraints.NONE;
gbc.anchor = GridBagConstraints.WEST;
gbc.gridy = 4;
gbc.gridx = 0;
gbc.gridwidth = 2;
gbc.gridheight = 1;
gbc.weighty = 1.0;
add(title, gbc);
donor = new JLabel(SHTML + DONOR + elem.donor + EHTML);
gbc.gridy = 5;
add(donor, gbc);
subDate = new JLabel(SHTML + SUB_DATE + elem.subDate.toString() + EHTML);
gbc.gridy = 6;
add(subDate, gbc);
objDate = new JLabel(SHTML + OBJ_DATE + elem.objDate.toString() + EHTML);
gbc.gridy = 7;
add(objDate, gbc);
medium = new JLabel(SHTML + MEDIUM + elem.medium + EHTML);
gbc.gridy = 8;
add(medium, gbc);
accNum = new JLabel(SHTML + ACC_NUM + elem.accNum + EHTML);
gbc.gridy = 9;
add(accNum, gbc);
desc = new JLabel(SHTML + DESC + EHTML);
// gbc.anchor = GridBagConstraints.PAGE_START;
gbc.insets = new Insets(0, 50, 0, 0);
gbc.gridy = 4;
gbc.gridx = 2;
add(desc, gbc);
descView = new JTextArea();
descView.setLineWrap(true);
descView.setWrapStyleWord(true);
descView.setEditable(false);
descView.setText(elem.desc);
descView.setFont(new Font("Times New Roman", Font.PLAIN, 13));
JScrollPane scrollPane = new JScrollPane(descView);
scrollPane.setPreferredSize(new Dimension(225, 100));
// scrollPane.setBorder(null);
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
descView.setCaretPosition(0);
gbc.gridy = 5;
gbc.gridheight = 4;
gbc.gridx = 2;
add(scrollPane, gbc);
gbc.insets = null;
gbc.gridy = 0;
gbc.gridx = 0;
gbc.gridwidth = 4;
gbc.gridheight = 4;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets(0, 0, 10, 0);
vpan = new V3DPanel(elem, provider);
vpan.setPreferredSize(new Dimension(500, 300));
setBackground(BACKGROUND);
add(vpan, gbc);
validate();
}
public void actionPerformed(ActionEvent e) {
saveOld();
area1.setText("");
resetArea2();
try {
clientSocket = new Socket(ipaddress.getText(), Integer.parseInt(portNumber.getText()));
Random r = new Random();
serverport = 10000 + r.nextInt(8999); // random port :D
serverSocket = new ServerSocket(serverport);
active = true;
editor.setTitleToListen();
connected = true;
ObjectOutputStream output = new ObjectOutputStream(clientSocket.getOutputStream());
ObjectInputStream input = new ObjectInputStream(clientSocket.getInputStream());
output.writeObject(new JoinNetworkRequest(serverport));
ConnectionData data = getConnectionData(clientSocket, input);
lc = new LamportClock(data.getId());
lc.setMaxTime(data.getTs());
dec = new DocumentEventCapturer(lc, editor);
er = new EventReplayer(editor, dec, lc);
ert = new Thread(er);
ert.start();
Peer peer =
new Peer(
editor,
er,
data.getHostId(),
clientSocket,
output,
input,
lc,
clientSocket.getInetAddress().getHostAddress(),
data.getPort());
dec.addPeer(peer);
Thread thread = new Thread(peer);
thread.start();
er.setAcknowledgements(data.getAcknowledgements());
er.setEventHistory(data.getEventHistory());
er.setCarets(data.getCarets());
er.addCaretPos(lc.getID(), 0);
for (PeerWrapper p : data.getPeers()) {
Socket socket;
try {
socket = connectToPeer(p.getIP(), p.getPort());
ObjectOutputStream outputStream = new ObjectOutputStream(socket.getOutputStream());
ObjectInputStream inputStream = new ObjectInputStream(socket.getInputStream());
outputStream.writeObject(
new NewPeerDataRequest(lc.getID(), serverSocket.getLocalPort(), 0));
Peer newPeer =
new Peer(
editor,
er,
p.getId(),
socket,
outputStream,
inputStream,
lc,
p.getIP(),
p.getPort());
dec.addPeer(newPeer);
Thread t = new Thread(newPeer);
t.start();
} catch (IOException ex) {
continue;
}
}
Thread t1 =
new Thread(
new Runnable() {
@Override
public void run() {
waitForConnection();
}
});
t1.start();
area1.setText(data.getTextField());
area1.setCaretPosition(0);
setDocumentFilter(dec);
dec.sendObjectToAllPeers(new UnlockRequest(lc.getTimeStamp()));
changed = false;
Connect.setEnabled(false);
Disconnect.setEnabled(true);
Listen.setEnabled(false);
Save.setEnabled(false);
SaveAs.setEnabled(false);
} catch (NumberFormatException | IOException e1) {
setTitle("Unable to connect");
}
}
// CONSTRUCTOR
public FACFrame() {
// SET PROPERTIES OF THE MAIN FRAME
setTitle("Fully Associative Cache");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setIconImage(Toolkit.getDefaultToolkit().createImage(FACFrame.class.getResource("cam.gif")));
// CREATE COMPONENTS AND SET THEIR PROPERTIES
// NAVIGATION BUTTONS
restart = new JButton("Restart");
next = new JButton("Next");
back = new JButton("Back");
quit = new JButton("Quit");
// CACHE HITS AND MISSES INFO.
lCacheHits = new JLabel("Cache Hits");
lCacheMisses = new JLabel("Cache Misses");
tCacheHits = new JTextField(5);
tCacheMisses = new JTextField(5);
tCacheHits.setEditable(false);
tCacheHits.setFont(new Font("Monospaced", Font.BOLD, 14));
tCacheHits.setText(" 0");
tCacheMisses.setEditable(false);
tCacheMisses.setFont(new Font("Monospaced", Font.BOLD, 14));
tCacheMisses.setText(" 0");
// PROGRESS UPDATE AREA
tProgress = new JTextArea(3, 45);
tProgress.setEditable(false);
tProgress.setLineWrap(true);
tProgress.setWrapStyleWord(true);
tProgress.setCaretPosition(0);
tProgress.setFont(new Font("Serif", Font.BOLD + Font.ITALIC, 16));
tProgress.setText(
"Welcome to Fully Associative Cache!\nThe system specs are as follows -"
+ "\n 16 Blocks in Cache\n 32 Blocks in Main Memory\n 8 Words per Block"
+ "\n The replacement algorithm shown is the Least-Recently-Used algorithm"
+ "\n as it is the most commonly used one."
+ "\nPlease generate the Address Reference String."
+ "\nThen click on \"Next\" to continue.");
progressScroll = new JScrollPane();
progressScroll.getViewport().add(tProgress);
progressScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
lProgress = new JLabel("PROGRESS UPDATE");
// ADDRESS REFERENCE STRING
addRefStrList = new JList();
addRefStrList.setEnabled(false);
addRefStrScroll = new JScrollPane();
addRefStrScroll.getViewport().setView(addRefStrList);
addRefStrScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
addRefStrScroll.setPreferredSize(new Dimension(140, 300));
// BUTTONS USED TO ADDRESS GENERATION
autoGen = new JButton("Auto Generate Add. Ref. Str.");
selfGen = new JButton("Self Generate Add. Ref. Str.");
// BITS IN MAIN MEMORY ADDRESS
lBits = new JLabel(" TAG WORD");
tTag = new JTextField(9);
tTag.setEditable(false);
tWord = new JTextField(7);
tWord.setEditable(false);
// SET THE FONT STYLES FOR THE BITS IN MAIN MEMORY ADDRESS
tTag.setFont(new Font("Monospaced", Font.BOLD, 14));
tWord.setFont(new Font("Monospaced", Font.BOLD, 14));
// REGISTER LISTENERS
restart.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
reStart();
}
});
next.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
nextClicked = true;
step();
}
});
back.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
nextClicked = false;
step();
}
});
quit.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
int confirmQuit =
JOptionPane.showConfirmDialog(
null,
"Really Quit?",
"Quit Confirmation",
JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE);
switch (confirmQuit) {
case JOptionPane.YES_OPTION:
removeInstance();
case JOptionPane.NO_OPTION:
break;
}
}
});
autoGen.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
autoGenerateString();
}
});
selfGen.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
selfGenerateString();
}
});
// DISABLE NAVIGATION BUTTONS FOR NOW
next.setEnabled(false);
back.setEnabled(false);
// CREATE PANELS
cachePanel = new FACachePanel();
memoryPanel = new MemoryPanel();
bottomPanel = new JPanel();
cache = new JPanel();
cacheHitsMisses = new JPanel();
pAutoSelfGen = new JPanel();
pAddRefStr = new JPanel();
pEastPanel = new JPanel();
pBitsInMM = new JPanel();
// ADD COMPONENTS TO THE PANELS
// PANEL WITH PROGRESS UPDATE TEXT AREA AND NAVIGATION BUTTONS
bottomPanel.add(lProgress);
bottomPanel.add(progressScroll);
bottomPanel.add(restart);
bottomPanel.add(next);
bottomPanel.add(back);
bottomPanel.add(quit);
// PANEL WITH CACHE BLOCKS, HITS AND MISSES INFO.
cacheHitsMisses.add(lCacheHits);
cacheHitsMisses.add(tCacheHits);
cacheHitsMisses.add(lCacheMisses);
cacheHitsMisses.add(tCacheMisses);
cacheHMBorder = BorderFactory.createEtchedBorder();
cacheHitsMisses.setBorder(BorderFactory.createTitledBorder(cacheHMBorder, ""));
cache.setLayout(new BorderLayout());
cache.add(cachePanel, "Center");
cache.add(cacheHitsMisses, "South");
// PANEL WITH ADDRESS REFERENCE STRING AND STRING GENERATION BUTTONS
pAutoSelfGen.setLayout(new GridLayout(2, 1));
pAutoSelfGen.add(autoGen);
pAutoSelfGen.add(selfGen);
pAddRefStr.setLayout(new BorderLayout());
pAddRefStr.setPreferredSize(new Dimension(160, 400));
pAddRefStr.add(addRefStrScroll, "Center");
pAddRefStr.add(pAutoSelfGen, "South");
addRefStrBorder = BorderFactory.createEtchedBorder();
pAddRefStr.setBorder(
BorderFactory.createTitledBorder(addRefStrBorder, " Address Reference String "));
// PANEL WITH THE MAIN MEMORY ADDRESS BITS INFO.
pBitsInMM.setLayout(new BorderLayout());
bitsInMMBorder = BorderFactory.createEtchedBorder();
pBitsInMM.setBorder(BorderFactory.createTitledBorder(bitsInMMBorder, " Main Memory Address "));
pBitsInMM.add(tTag, "Center");
pBitsInMM.add(tWord, "East");
pBitsInMM.add(lBits, "South");
// PANEL CONTAINING THE ADDRESS REF. STRING PANEL AND BITS IN MM PANEL
pEastPanel.setLayout(new BorderLayout());
pEastPanel.setPreferredSize(new Dimension(310, 650));
pEastPanel.add(pAddRefStr, "Center");
pEastPanel.add(pBitsInMM, "South");
// ADD COMPONENTS TO THE FRAME CONTAINER
Container c = getContentPane();
c.setLayout(new BorderLayout());
c.add(cache, "West");
c.add(memoryPanel, "Center");
c.add(pEastPanel, "East");
c.add(bottomPanel, "South");
// INITIALIZE ARRAYS THAT HOLDS STATUS OF EMPTY AND LRU CACHE BLOCKS
for (int i = 0; i < 16; i++) {
statusCacheEmpty[i] = true;
statusCacheLRU[i] = 0;
}
/*
* CALL THE FUNCTION TO GENERATE THE ARRAY addresses, WHICH CONTAINS ALL THE POSSIBLE MEMORY ADDRESSES
* THIS ARRAY WILL BE USEFUL IN THE AUTO GENERATION OF ADDRESSES AS WELL AS FOR VALIDATION OF
* ADDRESS STRINGS INPUT BY THE USER IF HE/SHE CHOOSES SELF GENERATION.
*/
createAddresses();
pack();
} // END CONSTRUCTOR
// FUNCTION TO SIMULATE A STEP IN THE SIMULATION ON THE FRAME
public void step() {
/**
* EACH TIME THE NEXT BUTTON IS PRESSED, ALL THE STATES THAT OCURRED UPTO THE CURRENT STATE ARE
* EVALUATED. THERE IS A while STATEMENT THAT PERFORMS THIS FUNCTION AND CONTAINS A switch
* STATEMENT WITHIN IT TO EVALUATE EACH STEP AS IT OCCURS.
*/
////////////////////// INITIALIZATION ///////////////////////////////////////
// UPDATE THE STATE OF THE CACHE AND MEMORY
for (int i = 0; i < 16; i++) {
cachePanel.stringBlocks[i] = "";
cachePanel.boolBlocks[i] = false;
cachePanel.tag[i] = "";
cachePanel.boolTags[i] = false;
statusCacheEmpty[i] = true;
statusCacheLRU[i] = 0;
}
for (int i = 0; i < 8; i++) {
cachePanel.boolWords[i] = false;
memoryPanel.boolWords[i] = false;
}
for (int i = 0; i < 32; i++) memoryPanel.boolBlocks[i] = false;
// UPDATE THE BITS IN MAIN MEMORY ADDRESS
tTag.setText("");
tWord.setText("");
tTag.setBackground(new Color(205, 205, 205));
tWord.setBackground(new Color(205, 205, 205));
// UPDATE THE CACHE HITS AND MISSES FIELDS
cacheHits = 0;
cacheMisses = 0;
tCacheHits.setText(" 0");
tCacheMisses.setText(" 0");
// UPDATE THE VALUES USED FOR BRINGING MEMORY BLOCKS IN CACHE
statusLRU = 0;
memInCache = -1;
lruCacheBlock = -1;
// RESET THE VALUE OF addSel
evaluateIndex = 0;
// DISABLE ADDRESS GENERATION BUTTONS
autoGen.setEnabled(false);
selfGen.setEnabled(false);
////////////////////// END INITIALIZATION /////////////////////////////////////
// IF Next WAS CLICKED, INCREMENT moveStatus
if (nextClicked) moveStatus++;
else {
// DECREMENT moveStatus AND ENABLE NEXT SINCE IT MIGHT BE DISABLED
moveStatus--;
next.setEnabled(true);
}
// IF NO MORE back MOVES CAN BE MADE, DISABLE back BUTTON
if (moveStatus == 0) {
back.setEnabled(false);
tProgress.setText(
"You cannot go back any further."
+ "\nPlease click on \"Next\" or \"Restart\" to continue.");
tProgress.setCaretPosition(0);
// CLEAR THE SELECTED ADDRESS REFERENCE STRING
addRefStrList.clearSelection();
} else
// ENABLE back BUTTON ONCE THE FIRST MOVE IS MADE
back.setEnabled(true);
// INITIALIZE THE VARIABLE THAT KEEPS TRACK OF THE STATE WE ARE CURRENTLY EVALUATING.
int tempState = 1;
// CONTINUE TO EVALUATE EACH STATE TILL WE REACH THE CURRENT STATE
while (tempState <= moveStatus) {
switch (tempState % 6) {
case 1: // IF A NEW CYCLE IS BEGINNING, OBTAIN NEXT ADDRESS REFERENCE
// OBTAIN THE ADDRESS REFERENCE STRING
addRefStrList.setSelectedIndex(evaluateIndex);
// ENSURE THAT THE LIST SCROLLS AND SELECTED INDEX IS VISIBLE
// DUE TO REPAINTING CONSTRAINTS, ONLY DO THIS IN THE CURRENT STATE
if (tempState == moveStatus) addRefStrList.ensureIndexIsVisible(evaluateIndex);
// EVALUATE THE TAG, BLOCK AND WORD
hexAddress = (String) addRefStrList.getSelectedValue();
int intAddress = Integer.parseInt(hexAddress, 16);
binAddress = Integer.toBinaryString(intAddress);
// USING CLASS INTEGER'S parseInt FUNCTION RETURNS A BINARY STRING WITHOUT LEADING 0'S
// ENSURE THAT binAddress is 8 bits
if (binAddress.length() < 8) {
int zeroes = 8 - binAddress.length();
for (int i = 0; i < zeroes; i++) binAddress = '0' + binAddress;
}
tag = binAddress.substring(0, 5);
word = binAddress.substring(5);
// CALCULATE THE ACTUAL CACHE AND MEMORY BLOCKS AND WORDS IN QUESTION
intWordDec = Integer.parseInt(word, 2);
intBlockDecMem = Integer.parseInt(tag, 2);
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.setText(
"The memory address we want is obtained from the Address Reference String."
+ "\nIt is (in hexadecimal): "
+ hexAddress
+ ".");
tProgress.setCaretPosition(0);
}
break;
case 2: // EVALUATE THE BITS IN MAIN MEMORY ADDRESS AND HIGHLIGHT THEM
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.setText(
"The hexadecimal address "
+ hexAddress
+ " evaluates to its binary equivalent "
+ binAddress
+ "."
+ "\nHence the bits in the Main Memory Address are divided into the following fields\n"
+ tag
+ " --> Tag, "
+ word
+ " --> Word."
+ "\nThe tag bits identify the memory block, "
+ "and the word bits identify the word within the block.");
tProgress.setCaretPosition(0);
// HIGHLIGHT THE BITS IN MAIN MEMORY ADDRESS IN GREEN
tTag.setBackground(Color.green);
tWord.setBackground(Color.green);
}
tTag.setText(" " + tag);
tWord.setText(" " + word);
break;
case 3: // FIND THE CACHE BLOCK IN QUESTION AND HIGHLIGHT IT
// UNDO HIGHLIGHTS OF PREVIOUS STEP
tTag.setBackground(new Color(205, 205, 205));
tWord.setBackground(new Color(205, 205, 205));
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.setText(
"Every time a memory block is placed in cache, its tag field is stored with it as well."
+ "\nSo, to find the required memory block in cache, its tag, "
+ tag
+ " is compared to all the valid tag fields in cache.");
tProgress.setCaretPosition(0);
}
// GET THE BLOCK IN CACHE WHERE MEMORY BLOCK EXISTS, IF AT ALL
memInCache = getCacheBlock(tag);
// IF MEMORY BLOCK IS NOT IN CACHE...
if (memInCache == -1) {
if (tempState == moveStatus) {
tProgress.append(
"\n\nSince the memory block is not in cache, there is a cache miss."
+ "\nSo the block needs to be brought in from memory.");
tProgress.setCaretPosition(0);
}
// GET FIRST EMPTY CACHE BLOCK, IF AVAILABLE
emptyCacheBlock = getFirstEmptyCacheBlock();
// IF EMPTY CACHE BLOCK IS AVAILABLE, THIS IS WHERE THE MEMORY WILL BE BROUGHT SO
// DISPLAY IT
if (!(emptyCacheBlock == -1)) {
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.append(
"\nSince the cache has empty space, the first available block will be filled."
+ "\nSee the highlighted cache block.");
tProgress.setCaretPosition(0);
}
// HIGHLIGHT THE CACHE BLOCK IN YELLOW
cachePanel.boolBlocks[emptyCacheBlock] = true;
cachePanel.boolTags[emptyCacheBlock] = true;
// STORE THE CHANGED CACHE BLOCK INDEX IN COMMON VARIABLE
intBlockDec = emptyCacheBlock;
}
// ELSE DISPLAY THE LRU CACHE BLOCK WHICH WILL BE REPLACED
else {
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.append(
"\nSince the cache is full, the least recently used cache block will be replaced."
+ "\nSee the highlighted cache block.");
tProgress.setCaretPosition(0);
}
lruCacheBlock = getLRUCacheBlock();
// HIGHLIGHT THE CACHE BLOCK IN YELLOW
cachePanel.boolBlocks[lruCacheBlock] = true;
cachePanel.boolTags[lruCacheBlock] = true;
// STORE THE CHANGED CACHE BLOCK INDEX IN COMMON VARIABLE
intBlockDec = lruCacheBlock;
}
// UPDATE COUNT OF CACHE MISSES
cacheMisses++;
tCacheMisses.setText(" " + cacheMisses);
} else {
if (tempState == moveStatus) {
tProgress.append(
"\n\nSince the required memory block is in cache block "
+ memInCache
+ " there is a cache hit.");
tProgress.setCaretPosition(0);
}
// HIGHLIGHT THE CACHE BLOCK IN YELLOW
// TO CAUSE HIGHLIGHTING ON THE CACHE, WE NEED TO MODIFY IT'S STATE, i.e. IT'S DATA
// MEMBERS
cachePanel.boolBlocks[memInCache] = true;
cachePanel.boolWords[intWordDec] = true;
cachePanel.boolTags[memInCache] = true;
// STORE THE CHANGED CACHE BLOCK INDEX IN COMMON VARIABLE
intBlockDec = memInCache;
// UPDATE COUNT OF CACHE HITS
cacheHits++;
tCacheHits.setText(" " + cacheHits);
}
break;
case 4: // EVALUATE THE MEMORY BLOCK IN QUESTION AND HIGHLIGHT IT
// UNDO THE HIGHLIGHTS OF THE PREVIOUS STEP
cachePanel.boolBlocks[intBlockDec] = false;
cachePanel.boolWords[intWordDec] = false;
cachePanel.boolTags[intBlockDec] = false;
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.setText(
"Highlighted is the memory block in question. Since the tag bits are "
+ tag
+ ", the memory block, in decimal, is "
+ intBlockDecMem
+ ".");
tProgress.setCaretPosition(0);
}
// SET THE MEMORY STATE SO AS TO HIGHLIGHT THE REQUIRED MEMORY BLOCK
memoryPanel.boolBlocks[intBlockDecMem] = true;
// SET THE MEMORY STATE SO AS TO HIGHLIGHT THE REQUIRED WORD
memoryPanel.boolWords[intWordDec] = true;
break;
case 5: // HIGHLIGHT THE CACHE BLOCK WITH THE MEMORY BLOCK NOW IN IT
// UNDO HIGHLIGHTS OF PREVIOUS STEP
memoryPanel.boolBlocks[intBlockDecMem] = false;
memoryPanel.boolWords[intWordDec] = false;
/*
* NOW, THERE ARE 3 WAYS TO GO FROM HERE
* 1. IF THERE IS AN EMPTY CACHE BLOCK, SIMPLY BRING THE MEMORY BLOCK INTO CACHE
* 2. IF THE REQUIRED MEMORY BLOCK IS ALREADY IN CACHE, DO NOTHING
* 3. IF THE CACHE IS FULL, FIND THE LRU BLOCK AND REPLACE IT WITH THE REQUIRED MEMORY BLOCK
*/
// IF THE MEMORY BLOCK WAS NOT IN CACHE AND AN EMPTY CACHE BLOCK IS AVAILABLE
// BRING THE MEMORY BLOCK AND TAG INTO CACHE AND HIGHLIGHT CACHE BLOCK
if ((memInCache == -1) && !(emptyCacheBlock == -1)) {
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.setText(
"As we saw earlier, the required memory block was not in cache."
+ "\nSince there was empty space in cache, we brought the memory block into it."
+ "\nWe also stored the tag, "
+ tag
+ ", of the memory block with the cache block."
+ "\n\nRemember that the memory block could be brought into any empty cache block."
+ "\nIn our example, we are using the first available empty block.");
tProgress.setCaretPosition(0);
}
// UPDATE THE COUNTER FOR THE LRU CACHE BLOCK
statusLRU++;
statusCacheLRU[emptyCacheBlock] = statusLRU;
statusCacheEmpty[emptyCacheBlock] = false;
// UPDATE THE CACHE ARRAYS KEEPING TRACK OF MEMORY BLOCKS AND TAGS
cachePanel.stringBlocks[emptyCacheBlock] = "" + intBlockDecMem;
cachePanel.tag[emptyCacheBlock] = tag;
// HIGHLIGHT THE CACHE BLOCK IN YELLOW
cachePanel.boolBlocks[emptyCacheBlock] = true;
cachePanel.boolWords[intWordDec] = true;
cachePanel.boolTags[emptyCacheBlock] = true;
// STORE THE CHANGED CACHE BLOCK INDEX IN COMMON VARIABLE
intBlockDec = emptyCacheBlock;
} // END IF
// IF MEMORY BLOCK IS ALREADY IN CACHE THEN JUST HIGHLIGHT THE CACHE BLOCK
else if ((memInCache >= 0) && (memInCache < 16)) {
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.setText(
"As we saw earlier, the required memory block is already in cache.");
tProgress.setCaretPosition(0);
}
// UPDATE THE COUNTER FOR THE LRU CACHE BLOCK
statusLRU++;
statusCacheLRU[memInCache] = statusLRU;
// HIGHLIGHT THE CACHE BLOCK IN YELLOW
cachePanel.boolBlocks[memInCache] = true;
cachePanel.boolWords[intWordDec] = true;
cachePanel.boolTags[memInCache] = true;
// STORE THE CHANGED CACHE BLOCK INDEX IN COMMON VARIABLE
intBlockDec = memInCache;
} // END ELSE IF
// IF THE MEMORY BLOCK IS NOT IN CACHE AND THE CACHE IS FULL
// FIND THE LRU CACHE BLOCK AND REPLACE IT WITH THE MEMORY BLOCK, THEN HIGHLIGHT THE CACHE
// BLOCK
else {
// FIND THE LRU CACHE BLOCK
lruCacheBlock = getLRUCacheBlock();
// IF THIS IS THE CURRENT STATE, UPDATE THE PROGRESS FIELD
if (tempState == moveStatus) {
tProgress.setText(
"As we saw earlier, the cache is full."
+ "\nSo we picked the least recently used cache block, "
+ lruCacheBlock
+ ", and replaced it with the required memory block.");
tProgress.setCaretPosition(0);
}
// UPDATE THE COUNTER FOR THE LRU CACHE BLOCK
statusLRU++;
statusCacheLRU[lruCacheBlock] = statusLRU;
statusCacheEmpty[lruCacheBlock] = false; // redundant stmt
// UPDATE THE CACHE ARRAYS KEEPING TRACK OF MEMORY BLOCKS AND TAGS
cachePanel.stringBlocks[lruCacheBlock] = "" + intBlockDecMem;
cachePanel.tag[lruCacheBlock] = tag;
// HIGHLIGHT THE CACHE BLOCK IN YELLOW
cachePanel.boolBlocks[lruCacheBlock] = true;
cachePanel.boolWords[intWordDec] = true;
cachePanel.boolTags[lruCacheBlock] = true;
// STORE THE CHANGED CACHE BLOCK INDEX IN COMMON VARIABLE
intBlockDec = lruCacheBlock;
} // END ELSE
break;
case 0: // LAST STEP IN CYCLE - CLEANUP STEP!
// UNDO HIGHLIGHTS OF PREVIOUS STEP
cachePanel.boolBlocks[intBlockDec] = false;
cachePanel.boolWords[intWordDec] = false;
cachePanel.boolTags[intBlockDec] = false;
tTag.setText("");
tWord.setText("");
tTag.setBackground(new Color(205, 205, 205));
tWord.setBackground(new Color(205, 205, 205));
// CLEAR THE SELECTED ADDRESS REFERENCE STRING
addRefStrList.clearSelection();
// INCREMENT THE INDEX SO AS TO POINT TO THE NEXT ADDRESS REFERENCE STRING
evaluateIndex++;
// IF THE LAST ADDRESS REFERENCE STRING HAS BEEN REACHED, DO THE APPROPRIATE
if (evaluateIndex == listData.size()) {
if (tempState == moveStatus) {
tProgress.setText(
"This completes the runthrough."
+ "\nPlease click on \"Restart\", generate the Address Reference String "
+ "OR click \"Quit\" to finish.");
tProgress.setCaretPosition(0);
}
next.setEnabled(false);
// ENABLE ADDRESS GENERATION BUTTONS
autoGen.setEnabled(true);
selfGen.setEnabled(true);
reStarted = false;
}
// ELSE AN ACCESS CYCLE HAS BEEN COMPLETED SO SHOW THE APPROPRIATE MESSAGE IN THE PROGRESS
// FIELD
else {
if (tempState == moveStatus) {
tProgress.setText("This completes an access cycle.");
tProgress.setCaretPosition(0);
}
// CLEAR THE SELECTION IN THE ADDRESS REFERENCE STRING
addRefStrList.clearSelection();
}
break;
default:
JOptionPane.showMessageDialog(null, "Uh Oh, there's a problem in switch-case!");
} // END switch
tempState++;
} // END while
// CALL THE REPAINT METHOD
repaint();
} // END FUNCTION step
/**
* Appends the contents of new_text to the text area without any modifications. The caret is set
* to the beginning of the text.
*
* @param new_text The new text to add. Nothing is done if this is null.
*/
public void appendText(String new_text) {
if (new_text != null) {
text_area.append(new_text);
text_area.setCaretPosition(0);
}
}
private void appendOutput(String str) {
if (str != null && !str.equals("")) outputArea.append(str + "\n\n");
outputArea.setCaretPosition(outputArea.getDocument().getLength());
}
/* Add a message to the message area, auto-scroll to end */
public synchronized void message(String s) {
mssgArea.append(s + "\n");
mssgArea.setCaretPosition(mssgArea.getDocument().getLength());
}
// called by the Client to append text in the TextArea
void append(String str) {
chatArea.append(str);
chatArea.setCaretPosition(chatArea.getText().length() - 1);
}
// FUNCTION ALLOWING THE USER TO SELF GENERATE THE ADDRESS REFERENCE STRING UPTO A MAXIMUM OF 10
// ADDRESSES
public void selfGenerateString() {
int option = 0;
int index = 0;
// INITIALIZE THE LIST OF ADDRESS REFERENCE STRINGS
// for (int i = 0; i < 10; i++)
// listData[i] = "";
// SET THE VALUES OF THE CUSTOM ARGUMENTS USED IN THE UPCOMING CALL TO THE METHOD
// JOptionPane.showOptionDialog
JTextField textfield = new JTextField();
Object[] array = {"Enter String", textfield};
Object[] options = {"Continue", "Done"};
// ALLOW THE USER TO INPUT UPTO 10 ADDRESSES
while ((option == 0) && index < 10) {
// CALL THE showOptionDialog METHOD USING THE ABOVE CUSTOM ARGUMENTS
option =
JOptionPane.showOptionDialog(
this,
array,
"Self Generate",
JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE,
null,
options,
options[0]);
// IF THE "CONTINUE" BUTTON WAS CLICKED THEN VALIDATE INPUT
if (option == 0) {
// THEN VALIDATE INPUT
if ((validateInput(textfield.getText()))
|| (validateInput(textfield.getText().toUpperCase()))) {
// IF THE INPUT IS VALID, ADD IT TO THE LIST OF ADDRESS REFERENCE STRINGS
// listData[index] = textfield.getText().toUpperCase();
listData.add(textfield.getText().toUpperCase());
index++;
} else
// IF THE INPUT IS INVALID, NOTIFY USER AND PROMPT AGAIN
JOptionPane.showMessageDialog(
this, "Invalid Input. Please try again.", "Invalid Input", JOptionPane.ERROR_MESSAGE);
// RESET THE TEXTFIELD
textfield.setText("");
}
// ELSE IF DONE BUTTON WAS CLICKED ON INPUT, VALIDATE INPUT
else if ((option == 1) && ((!textfield.getText().equals("")))) {
// IF INPUT WAS VALID, ADD TO ADDRESS REFERENCE STRING AND QUIT THE DIALOG BOX
if ((validateInput(textfield.getText()))
|| (validateInput(textfield.getText().toUpperCase()))) {
// listData[index] = textfield.getText().toUpperCase();
listData.add(textfield.getText().toUpperCase());
index++;
tProgress.setText(
"You have generated an Address Reference String of "
+ index
+ " address."
+ "\nPlease click on \"Next\" to continue.");
tProgress.setCaretPosition(0);
} else {
// IF INPUT WAS INVALID, NOTIFY USER AND QUIT THE DIALOG BOX
JOptionPane.showMessageDialog(
this,
"Invalid Input. Quitting without saving last entry.",
"Invalid Input",
JOptionPane.ERROR_MESSAGE);
tProgress.setText(
"You have generated an Address Reference String of "
+ index
+ " address."
+ "\nPlease click on \"Next\" to continue.");
tProgress.setCaretPosition(0);
}
}
}
// PUT THE STRING OF INPUTS INTO THE ADDRESS REFERENCE STRING LISTBOX
addRefStrList.setListData(listData);
// ENABLE Next BUTTON AND DISABLE Back BUTTON ONLY IF AT LEAST ONE VALID ENTRY WAS MADE
if (index > 0) {
// moveStatus = 0;
next.setEnabled(true);
back.setEnabled(false);
}
} // END FUNCTION selfGenerateString
