public void execute() {
if (!isEditable() || !isEnabled()) {
return;
}
int position = lastClickPoint != null ? viewToModel(lastClickPoint) : getCaretPosition();
lastClickPoint = null;
Document document = getDocument();
String selectedText = getSelectedText();
try {
if (selectedText != null && !CommonUtil.isEmpty(selectedText)) {
String trimmed = selectedText.trim();
if (trimmed.startsWith("<!--") && trimmed.endsWith("-->")) {
StringBuffer buffer = new StringBuffer(selectedText);
int pos = buffer.indexOf("<!--");
buffer.delete(pos, pos + 4);
pos = buffer.lastIndexOf("-->");
buffer.delete(pos, pos + 3);
replaceSelection(buffer.toString());
} else {
String newSelection = "<!--" + selectedText + "-->";
replaceSelection(newSelection);
}
} else {
final int docLen = document.getLength();
int fromIndex = Math.max(0, getText(0, position).lastIndexOf('\n'));
int toIndex = getText(fromIndex + 1, docLen - position).indexOf('\n');
toIndex = toIndex < 0 ? docLen : fromIndex + toIndex;
String textToComment = getText(fromIndex, toIndex - fromIndex + 1);
if (textToComment.startsWith("\n")) {
textToComment = textToComment.substring(1);
fromIndex++;
}
if (textToComment.endsWith("\n")) {
textToComment = textToComment.substring(0, textToComment.length() - 1);
toIndex--;
}
String trimmed = textToComment.trim();
if (trimmed.startsWith("<!--") && trimmed.endsWith("-->")) {
int pos = textToComment.lastIndexOf("-->");
document.remove(fromIndex + pos, 3);
pos = textToComment.indexOf("<!--");
document.remove(fromIndex + pos, 4);
} else {
document.insertString(Math.min(toIndex + 1, docLen), "-->", null);
document.insertString(fromIndex, "<!--", null);
}
}
} catch (BadLocationException e1) {
e1.printStackTrace();
}
}
public void actionPerformed(ActionEvent e) {
JTextComponent textComponent = getTextComponent(e);
if (!textComponent.isEditable() || !textComponent.isEnabled()) {
return;
}
try {
final int position = getCaretPosition();
final Document document = getDocument();
int docLen = document.getLength();
if (docLen == 0) {
return;
}
int fromIndex = Math.max(0, getText(0, position).lastIndexOf('\n'));
int toIndex = getText(fromIndex + 1, docLen - fromIndex - 1).indexOf('\n');
toIndex = toIndex < 0 ? docLen : fromIndex + toIndex + 1;
String text = getText(fromIndex, toIndex - fromIndex);
if (text.startsWith("\n") || toIndex >= docLen) {
document.remove(fromIndex, toIndex - fromIndex);
} else {
document.remove(fromIndex, toIndex - fromIndex + 1);
}
int newPosition = 0;
if (fromIndex > 0) {
newPosition = fromIndex + 1;
}
docLen = document.getLength();
if (newPosition > docLen) {
newPosition = getText().lastIndexOf('\n') + 1;
}
setCaretPosition(newPosition);
} catch (BadLocationException e1) {
e1.printStackTrace();
}
}
@Override
protected void exportDone(JComponent source, Transferable data, int action) {
if (action == TransferHandler.MOVE) {
JTextPane aTextPane = (JTextPane) source;
int sel_start = aTextPane.getSelectionStart();
int sel_end = aTextPane.getSelectionEnd();
Document doc = aTextPane.getDocument();
try {
doc.remove(sel_start, sel_end - sel_start);
} catch (BadLocationException e) {
Debug.error(me + "exportDone: Problem while trying to remove text\n%s", e.getMessage());
}
}
}
private void expandTab() throws BadLocationException {
int pos = getCaretPosition();
Document doc = getDocument();
doc.remove(pos - 1, 1);
doc.insertString(pos - 1, _tabString, null);
}