@Override
public void focusGained(final FocusEvent e) {
final JTextComponent component = getComponent();
if (!component.isEnabled() || !component.isEditable()) {
super.focusGained(e);
return;
}
mFocused = true;
if (!shouldSelectAllOnFocus) {
shouldSelectAllOnFocus = true;
super.focusGained(e);
return;
}
if (isMultiLineEditor) {
super.focusGained(e);
return;
}
final int end = component.getDocument().getLength();
final int dot = getDot();
final int mark = getMark();
if (dot == mark) {
if (dot == 0) {
component.setCaretPosition(end);
component.moveCaretPosition(0);
} else if (dot == end) {
component.setCaretPosition(0);
component.moveCaretPosition(end);
}
}
super.focusGained(e);
}
public void actionPerformed(ActionEvent e) {
JTextComponent textComponent = getTextComponent(e);
if (!textComponent.isEditable() || !textComponent.isEnabled()) {
return;
}
try {
outdentText(textComponent);
} 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();
}
}
/**
* This method indicates if a component would accept an import of the given set of data flavors
* prior to actually attempting to import it.
*
* @param comp The component to receive the transfer. This argument is provided to enable sharing
* of TransferHandlers by multiple components.
* @param flavors The data formats available.
* @return <code>true</code> iff the data can be inserted.
*/
public boolean canImport(JComponent comp, DataFlavor[] flavors) {
JTextComponent c = (JTextComponent) comp;
if (!(c.isEditable() && c.isEnabled())) return false;
return (getImportFlavor(flavors, c) != null);
}