public void modifyText(ModifyEvent e) {
if (_internalModify) return;
try {
String text = _text.getText();
double value;
if (text.length() == 0) {
value = new Double(0); // $NON-NLS-1$
} else {
value = new Double(text);
}
_preferences.setDoublePreference(_index, value);
} catch (NumberFormatException x) {
// $JL-EXC$ do nothing, reset after the conversion anyway
updateControl();
}
}
/**
* Updates control according to value in the IPrintPreferences. If it is the first update with an
* empty textfield, the preference value is set. If it is not the first time an empty text field
* occurs, nothing happens avoiding the confusing behaviour of updating to 0.00 when the user
* deletes all characters for preparing new input.
*/
public void updateControl() {
_internalModify = true;
double newValue = _preferences.getDoublePreference(_index);
try {
if (_text.getText().length() != 0) {
double oldValue = Double.valueOf(_text.getText()).doubleValue();
if (newValue != oldValue) _text.setText(Double.toString(newValue));
} else {
if (_initialUpdate) {
_text.setText(Double.toString(newValue));
}
}
} catch (NumberFormatException e) {
// $JL-EXC$
_text.setText(Double.toString(newValue));
} finally {
_internalModify = false;
}
_initialUpdate = false;
}