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Recently opened files can now be selected from Jskad's file menu.

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A Jskad now gives the focus to the DuffPane when that Jskad gets the
focus.
This commit is contained in:
dchandler 2003-07-04 02:31:23 +00:00
parent 7500b4e06b
commit 9f0b1c3250
1 changed files with 106 additions and 20 deletions
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126
source/org/thdl/tib/input/Jskad.java
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@ -63,6 +63,11 @@ import org.thdl.util.ThdlLazyException;
* @version 1.0
*/
public class Jskad extends JPanel implements DocumentListener {
/** Sets the focus to the DuffPane if possible. */
private void focusToDuffPane() {
if (null != dp) dp.requestFocus();
}
/** the name of the property a developer should set to see
low-level info on how keypresses in "Tibetan" input mode are
being interpreted */
@ -124,6 +129,17 @@ public class Jskad extends JPanel implements DocumentListener {
/** Saves user preferences to disk if possible. */
private void savePreferencesAction() {
try {
int N = ThdlOptions.getIntegerOption("thdl.number.of.recently.opened.files.to.show", 4);
int n = 0;
// We store 2*N files in the preferences in case some are deleted.
for (int k = recentlyOpenedFiles.size(); k > 0 && n < 2*N; k--) {
File f = (File)recentlyOpenedFiles.elementAt(k - 1);
if (f.isFile())
ThdlOptions.setUserPreference("thdl.recently.opened.file." + n++,
f.getAbsolutePath());
}
if (!ThdlOptions.saveUserPreferences()) {
JOptionPane.showMessageDialog(Jskad.this,
"You previously cleared preferences,\nso you cannot now save them.",
@ -156,6 +172,40 @@ public class Jskad extends JPanel implements DocumentListener {
/** pane displaying Jskad's single HTML help file */
private static HTMLPane helpPane;
/** Returns the <code>n</code>th most recently opened file, given
that we care about <code>N</code> recently opened files in
total. When <code>n</code> is zero, the most recently opened
file is returned. This file does exist. Returns null if we
haven't kept track of enough files to say. */
private static File getNthRecentlyOpenedFile(int n, int N) {
for (int i = n; i < N*2; i++) {
String x = ThdlOptions.getStringOption("thdl.recently.opened.file." + i);
if (null == x)
return null;
File f = new File(x);
if (f.isFile())
return f;
}
return null;
}
private static Vector recentlyOpenedFiles = new Vector();
private JMenu fileMenu = null;
/** Updates state information now that we know that fileChosen is
the most recently opened file. */
private void noteMostRecentlyOpenedFile(File fileChosen) {
// the last element is the most recently opened.
int index = recentlyOpenedFiles.indexOf(fileChosen);
if (index > -1)
recentlyOpenedFiles.remove(index);
recentlyOpenedFiles.add(fileChosen);
int ic = fileMenu.getItemCount();
System.err.println("DLC ic is " ic);
// DLC update the menus.
}
/**
* @param parent the object that embeds this instance of Jskad.
* Supported objects include JFrames and JApplets. If the parent
@ -185,7 +235,7 @@ public class Jskad extends JPanel implements DocumentListener {
txtFilter = new TXTFilter();
fileChooser.addChoosableFileFilter(rtfFilter);
JMenu fileMenu = new JMenu("File");
fileMenu = new JMenu("File");
JMenuItem newItem = new JMenuItem("New");
// newItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,java.awt.Event.CTRL_MASK)); //Ctrl-n
@ -245,6 +295,33 @@ public class Jskad extends JPanel implements DocumentListener {
});
fileMenu.add(saveAsItem);
// Add the N most recently opened files.
int N = ThdlOptions.getIntegerOption("thdl.number.of.recently.opened.files.to.show", 4);
int maxCharsToShow
= ThdlOptions.getIntegerOption("thdl.max.chars.in.recently.opened.file.name", 35);
if (N > 0) {
boolean addedSeparator = false;
for (int i = 0; i < N; i++) {
final File recentlyOpenedFile
= getNthRecentlyOpenedFile(i, N);
if (null != recentlyOpenedFile) {
if (!addedSeparator) {
fileMenu.addSeparator();
addedSeparator = true;
}
recentlyOpenedFiles.add(recentlyOpenedFile);
JMenuItem item = new JMenuItem((i+1) + " " + recentlyOpenedFile.getAbsolutePath());
item.addActionListener(new ThdlActionListener() {
public void theRealActionPerformed(ActionEvent e) {
openFile(recentlyOpenedFile);
}
});
fileMenu.add(item);
recentlyOpenedFilesMenuItems.add(item);
}
}
}
if (parentObject instanceof JFrame) {
JMenuItem exitItem = new JMenuItem("Exit");
exitItem.addActionListener(new ThdlActionListener() {
@ -699,7 +776,7 @@ public class Jskad extends JPanel implements DocumentListener {
toolBar.add(keyboards);
toolBar.add(Box.createHorizontalGlue());
JScrollPane sp
JScrollPane scrollingDuffPane
= new JScrollPane(dp,
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
@ -710,24 +787,26 @@ public class Jskad extends JPanel implements DocumentListener {
parentFrame.setJMenuBar(menuBar);
parentFrame.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
parentFrame.addWindowListener(new WindowAdapter () {
public void windowClosing (WindowEvent e) {
if (!hasChanged || hasChanged && checkSave(JOptionPane.YES_NO_CANCEL_OPTION)) {
numberOfTibsRTFOpen--;
if (numberOfTibsRTFOpen == 0)
System.exit(0);
else
parentFrame.dispose();
}
}
});
}
else if (parentObject instanceof JInternalFrame) {
// We want the focus to be, at the start of the
// program and whenever Jskad gets the focus, on
// the DuffPane.
public void windowActivated (WindowEvent e) {
focusToDuffPane();
}
public void windowClosing (WindowEvent e) {
if (!hasChanged || hasChanged && checkSave(JOptionPane.YES_NO_CANCEL_OPTION)) {
numberOfTibsRTFOpen--;
if (numberOfTibsRTFOpen == 0)
System.exit(0); // calls our shutdown hook
else
parentFrame.dispose();
}
}
});
} else if (parentObject instanceof JInternalFrame) {
final JInternalFrame parentFrame = (JInternalFrame)parentObject;
parentFrame.setJMenuBar(menuBar);
}
else if (parentObject instanceof JApplet) {
} else if (parentObject instanceof JApplet) {
JApplet parentApplet = (JApplet)parentObject;
parentApplet.setJMenuBar(menuBar);
dp.disableCutAndPaste();
@ -735,7 +814,7 @@ public class Jskad extends JPanel implements DocumentListener {
setLayout(new BorderLayout());
add("North", toolBar);
add("Center", sp);
add("Center", scrollingDuffPane);
if (statusBar != null)
add("South", statusBar);
}
@ -846,7 +925,12 @@ public class Jskad extends JPanel implements DocumentListener {
return;
}
final File fileChosen = fileChooser.getSelectedFile();
openFile(fileChooser.getSelectedFile());
}
/** Opens fileChosen for viewing and modifies the recently opened
files list. */
private void openFile(File fileChosen) {
final String f_name = fileChosen.getAbsolutePath();
try {
@ -877,6 +961,7 @@ public class Jskad extends JPanel implements DocumentListener {
newFrame.dispose();
numberOfTibsRTFOpen--;
} else {
noteMostRecentlyOpenedFile(fileChosen);
if (!ThdlOptions.getBooleanOption("thdl.Jskad.do.not.fix.curly.braces.in.rtf")) {
((TibetanDocument)newRTF.dp.getDocument()).replaceTahomaCurlyBracesAndBackslashes(0, -1);
}
@ -905,6 +990,7 @@ public class Jskad extends JPanel implements DocumentListener {
in.close();
if (!error) {
noteMostRecentlyOpenedFile(fileChosen);
if (!ThdlOptions.getBooleanOption("thdl.Jskad.do.not.fix.curly.braces.in.rtf")) {
((TibetanDocument)dp.getDocument()).replaceTahomaCurlyBracesAndBackslashes(0, -1);
}