/**
* Determines the preferred span for this view along an axis.
*
* @param axis may be either View.X_AXIS or View.Y_AXIS
* @return the span the view would like to be rendered into >= 0. Typically the view is told to
* render into the span that is returned, although there is no guarantee. The parent may
* choose to resize or break the view.
*/
public float getPreferredSpan(int axis) {
switch (axis) {
case View.X_AXIS:
Segment buff = SegmentCache.getSharedSegment();
Document doc = getDocument();
int width;
try {
FontMetrics fm = getFontMetrics();
doc.getText(0, doc.getLength(), buff);
width = Utilities.getTabbedTextWidth(buff, fm, 0, this, 0);
if (buff.count > 0) {
Component c = getContainer();
firstLineOffset =
sun.swing.SwingUtilities2.getLeftSideBearing(
(c instanceof JComponent) ? (JComponent) c : null, fm, buff.array[buff.offset]);
firstLineOffset = Math.max(0, -firstLineOffset);
} else {
firstLineOffset = 0;
}
} catch (BadLocationException bl) {
width = 0;
}
SegmentCache.releaseSharedSegment(buff);
return width + firstLineOffset;
default:
return super.getPreferredSpan(axis);
}
}
/**
* Makes a <code>Segment</code> point to the text in our document between the given positions.
* Note that the positions MUST be valid positions in the document.
*
* @param p0 The first position in the document.
* @param p1 The second position in the document.
* @param document The document from which you want to get the text.
* @param seg The segment in which to load the text.
*/
private void setSegment(int p0, int p1, Document document, Segment seg) {
try {
// System.err.println("... in setSharedSegment, p0/p1==" + p0 + "/" + p1);
document.getText(p0, p1 - p0, seg);
// System.err.println("... in setSharedSegment: s=='" + s + "'; line/numLines==" + line + "/"
// + numLines);
} catch (BadLocationException ble) { // Never happens
ble.printStackTrace();
}
}
public void insertUpdate(DocumentEvent e) {
Document doc = e.getDocument();
try {
prop.set(doc.getText(0, doc.getLength()));
} catch (BadLocationException b) {
// Once again, no idea what this is supposed to be.
// I don't think I like this interface much :-(.
System.out.println(b);
}
}
@Override
@SuppressWarnings("SleepWhileHoldingLock")
public void run() {
try {
// initialize the statusbar
status.removeAll();
JProgressBar progress = new JProgressBar();
progress.setMinimum(0);
progress.setMaximum(doc.getLength());
status.add(progress);
status.revalidate();
// start writing
Writer out = new FileWriter(f);
Segment text = new Segment();
text.setPartialReturn(true);
int charsLeft = doc.getLength();
int offset = 0;
while (charsLeft > 0) {
doc.getText(offset, Math.min(4096, charsLeft), text);
out.write(text.array, text.offset, text.count);
charsLeft -= text.count;
offset += text.count;
progress.setValue(offset);
try {
Thread.sleep(10);
} catch (InterruptedException e) {
Logger.getLogger(FileSaver.class.getName()).log(Level.SEVERE, null, e);
}
}
out.flush();
out.close();
} catch (IOException e) {
final String msg = e.getMessage();
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
JOptionPane.showMessageDialog(
getFrame(),
"Could not save file: " + msg,
"Error saving file",
JOptionPane.ERROR_MESSAGE);
}
});
} catch (BadLocationException e) {
System.err.println(e.getMessage());
}
// we are done... get rid of progressbar
status.removeAll();
status.revalidate();
}
/**
* This function inserts or replaces the user's input in a string buffer, to create the text
* which would be on screen if we allowed it. We declare to throw bad location due to
* doc.getText, but since the paramters are coming from the farmework, that should never
* happen.... in theory. If insert is true we insert, if false we replace. Length parameter only
* used when replacing.
*/
private StringBuffer getTextPrototype(
boolean insert, FilterBypass fb, int offs, String str, int length)
throws BadLocationException {
Document doc = fb.getDocument();
String text = doc.getText(0, doc.getLength());
StringBuffer sb = new StringBuffer(text);
if (insert) {
sb.insert(offs, str);
} else {
sb.replace(offs, offs + length, str);
}
return sb;
} // end of getTextPrototype
private String addWhiteSpace(Document doc, int offset) throws BadLocationException {
StringBuilder whiteSpace = new StringBuilder("\n");
Element rootElement = doc.getDefaultRootElement();
int line = rootElement.getElementIndex(offset);
int i = rootElement.getElement(line).getStartOffset();
while (true) {
String temp = doc.getText(i, 1);
if (temp.equals(" ") || temp.equals("\t")) {
whiteSpace.append(temp);
i++;
} else break;
}
return whiteSpace.toString();
}
/**
* Updates the shared value instance if updateValue is true. Always forces the redraw of
* everything.
*/
protected void doValueUpdate(FilterBypass fb) throws BadLocationException {
Document doc = fb.getDocument();
String text = doc.getText(0, doc.getLength());
if (text.isEmpty()) {
text = "0";
}
if (updateValue == true) {
try {
Double value = new Double(text);
double newValue = multiplier.getValueToBeSet(value.doubleValue());
cValue.setValue(newValue);
} catch (NumberFormatException e) {
// do nothing, since we allow '-'
}
}
topContainer.forceRedraw();
}
void updateTheLabel(DocumentEvent e) {
Document doc = (Document) e.getDocument();
String text = null;
try {
text = doc.getText(0, doc.getLength());
doc = null;
} catch (BadLocationException ex) {
text = null;
}
if (text != null) {
try {
double number = Double.parseDouble(text);
if (number > 1) {
label.setText(labelPair.getPlural());
} else {
label.setText(labelPair.getSingular());
}
} catch (NumberFormatException ex) {
// Do nothing
} finally {
text = null;
}
}
}