void shiftLeft() {
javax.swing.text.PlainDocument doc = (javax.swing.text.PlainDocument) getDocument();
try {
int currentLine = offsetToLine(doc, getSelectionStart());
int endLine = offsetToLine(doc, getSelectionEnd());
// The two following cases are to take care of selections that include
// only the very edge of a line of text, either at the top or bottom
// of the selection. Because these lines do not have *any* highlighted
// text, it does not make sense to modify these lines. ~Forrest (9/22/2006)
if (endLine > currentLine && getSelectionEnd() == lineToStartOffset(doc, endLine)) {
endLine--;
}
if (endLine > currentLine && getSelectionStart() == (lineToEndOffset(doc, currentLine) - 1)) {
currentLine++;
}
while (currentLine <= endLine) {
int lineStart = lineToStartOffset(doc, currentLine);
int lineEnd = lineToEndOffset(doc, currentLine);
String text = doc.getText(lineStart, lineEnd - lineStart);
if (text.length() > 0 && text.charAt(0) == ' ') {
doc.remove(lineStart, 1);
}
currentLine++;
}
} catch (javax.swing.text.BadLocationException ex) {
throw new IllegalStateException(ex);
}
}
String getLineText(int offset) throws javax.swing.text.BadLocationException {
javax.swing.text.PlainDocument doc = (javax.swing.text.PlainDocument) getDocument();
int currentLine = offsetToLine(doc, offset);
int lineStart = lineToStartOffset(doc, currentLine);
int lineEnd = lineToEndOffset(doc, currentLine);
return doc.getText(lineStart, lineEnd - lineStart);
}
public final String getNameText() {
try {
return myNameDocument.getText(0, myNameDocument.getLength());
} catch (BadLocationException e) {
LOG.error(e);
return "";
}
}
public void testGetText() throws Exception {
PlainDocument doc = new PlainDocument();
CharSequence text = DocumentUtilities.getText(doc);
assertEquals(1, text.length());
assertEquals('\n', text.charAt(0));
text = DocumentUtilities.getText(doc);
doc.insertString(0, "a\nb", null);
for (int i = 0; i < doc.getLength() + 1; i++) {
assertEquals(doc.getText(i, 1).charAt(0), text.charAt(i));
}
}
String getHelpTarget(int startPosition) {
// determine the current "word" that the cursor is on
javax.swing.text.PlainDocument doc = (javax.swing.text.PlainDocument) getDocument();
try {
int currentLine = offsetToLine(doc, startPosition);
int startLineOffset = lineToStartOffset(doc, currentLine);
int lineLength = lineToEndOffset(doc, currentLine) - startLineOffset;
String lineText = doc.getText(startLineOffset, lineLength);
int selStartInString = startPosition - startLineOffset;
return colorizer.getTokenAtPosition(lineText, selStartInString);
} catch (javax.swing.text.BadLocationException ex) {
throw new IllegalStateException(ex);
}
}
void uncomment() {
javax.swing.text.PlainDocument doc = (javax.swing.text.PlainDocument) getDocument();
try {
int currentLine = offsetToLine(doc, getSelectionStart());
int endLine = offsetToLine(doc, getSelectionEnd());
// The two following cases are to take care of selections that include
// only the very edge of a line of text, either at the top or bottom
// of the selection. Because these lines do not have *any* highlighted
// text, it does not make sense to modify these lines. ~Forrest (9/22/2006)
if (endLine > currentLine && getSelectionEnd() == lineToStartOffset(doc, endLine)) {
endLine--;
}
if (endLine > currentLine && getSelectionStart() == (lineToEndOffset(doc, currentLine) - 1)) {
currentLine++;
}
while (currentLine <= endLine) {
int lineStart = lineToStartOffset(doc, currentLine);
int lineEnd = lineToEndOffset(doc, currentLine);
String text = doc.getText(lineStart, lineEnd - lineStart);
int semicolonPos = text.indexOf(';');
if (semicolonPos != -1) {
boolean allSpaces = true;
for (int i = 0; i < semicolonPos; i++) {
if (!Character.isWhitespace(text.charAt(i))) {
allSpaces = false;
break;
}
}
if (allSpaces) {
doc.remove(lineStart + semicolonPos, 1);
}
}
currentLine++;
}
} catch (javax.swing.text.BadLocationException ex) {
throw new IllegalStateException(ex);
}
}
/**
* Return the lines that span the selection (split as an array of Strings) if there is no
* selection then current line is returned.
*
* <p>Note that the strings returned will not contain the terminating line feeds If the document
* is empty, then an empty string array is returned. So you can always iterate over the returned
* array without a null check
*
* <p>The text component will then have the full lines set as selection
*
* @return String[] of lines spanning selection / or line containing dot
*/
public static String[] getSelectedLines(JTextComponent target) {
String[] lines = null;
try {
PlainDocument pDoc = (PlainDocument) target.getDocument();
int start = pDoc.getParagraphElement(target.getSelectionStart()).getStartOffset();
int end;
if (target.getSelectionStart() == target.getSelectionEnd()) {
end = pDoc.getParagraphElement(target.getSelectionEnd()).getEndOffset();
} else {
// if more than one line is selected, we need to subtract one from the end
// so that we do not select the line with the caret and no selection in it
end = pDoc.getParagraphElement(target.getSelectionEnd() - 1).getEndOffset();
}
target.select(start, end);
lines = pDoc.getText(start, end - start).split("\n");
target.select(start, end);
} catch (BadLocationException ex) {
Logger.getLogger(ActionUtils.class.getName()).log(Level.SEVERE, null, ex);
lines = EMPTY_STRING_ARRAY;
}
return lines;
}