/**
* @param codep
* @return
*/
protected Caret installCaret(CodePoint codep) {
// The caret will track the positions across the users' editings.
final DefaultCaret place = new DefaultCaret();
place.setUpdatePolicy(DefaultCaret.UPDATE_WHEN_ON_EDT);
place.install(txtEditor);
// remove mouse listeners from component, since we don't want the mouse to modify our caret
txtEditor.removeMouseListener(place);
txtEditor.removeMouseMotionListener(place);
txtEditor.removeFocusListener(place);
// configure visibility and set proper positions
place.setVisible(false);
place.setSelectionVisible(false);
place.setDot(codep.y);
place.moveDot(codep.x);
log.info("Installed Caret for " + codep);
place.addChangeListener(
new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
log.fine(e.getSource() + " at " + e.toString());
// when the caret changes, update the display
updateName();
}
});
return place;
}
private void setCaretValue(int i) {
caret.setVisible(true);
caretValue = i;
int min = 0;
int max = getText().length();
if (i < min) i = min;
if (i > max) i = max;
if (debug) System.out.println("setSelectionStart: " + i);
setSelectionStart(i);
setSelectionEnd(i);
}
/** Only show the flashing caret if the selection range is zero */
@Override
public void setVisible(boolean e) {
if (e) e = getDot() == getMark();
super.setVisible(e);
}