protected boolean handleScaleSelection(Scale scale) {
int min = scale.getMinimum();
double portion = (scale.getSelection() - min) * 1.0d / (scale.getMaximum() - min);
boolean selectionChanged = internalSetSelection(portion, false);
refresh();
return selectionChanged;
}
protected void refreshScale(Scale scale) {
int min = scale.getMinimum();
int sel = (int) Math.round((scale.getMaximum() - min) * selectionRatio + min);
scale.setSelection(sel);
scale.setToolTipText(getSelectionText());
}