/** Override of JMenu::add(Action); */
public JMenuItem add(Action a) {
// Actions do not have a getPreferredSize call
// Therefore, the only way to determine the desired height
// of an action to be inserted is to forcibly insert
// it and then ask the resulting menu item that
// is returned for its preferred height. Then based
// on that height, determine if we can add it to the
// base menu or if we must
JMenuItem retVal = null;
// Forcibly insert the item into the menu
JMenuItem tempMenuItem = super.add(a);
// super.remove(tempMenuItem);
// Determine if we can insert this into the primary menu
// or if we must insert into the more menu.
// Use locals for convenient reference points when debugging
double preferredHeight = getPreferredSize().getHeight();
double menuItemHeight = tempMenuItem.getPreferredSize().getHeight();
if ((preferredHeight + menuItemHeight) < maximumHeight) {
retVal = tempMenuItem;
} else {
// Create the more menu if necessary
super.remove(tempMenuItem);
createSubMoreMenu();
// Add item to the More Menu.
retVal = moreMenu.add(a);
}
return retVal;
}
/** Override of JMenu::add(JMenuItem) */
public JMenuItem add(JMenuItem menuItem) {
JMenuItem retVal = null;
// Use locals for a convenient reference point
// to check when debugging.
double menuItemSize = menuItem.getPreferredSize().getHeight();
if ((myHeight + menuItemSize) < maximumHeight) {
retVal = super.add(menuItem);
myHeight += menuItemSize;
} else {
// Create the more menu if necessary
createSubMoreMenu();
retVal = moreMenu.add(menuItem);
}
return retVal;
}
/** Override of JMenuItem::add(string) */
public JMenuItem add(String string) {
// Strings do not have a getPreferredSize call
// Therefore, the only way to determine the height
// needed is to forcibly insert the item, then remove it.
JMenuItem retVal = null;
// Use locals for a convenient reference point when
// debugging
double menuItemHeight = 0;
JMenuItem tempMenuItem = super.add(string);
if (tempMenuItem != null) {
menuItemHeight = tempMenuItem.getPreferredSize().getHeight();
}
super.remove(tempMenuItem);
if ((myHeight + menuItemHeight) < maximumHeight) {
retVal = super.add(string);
} else {
createSubMoreMenu();
retVal = moreMenu.add(string);
}
return retVal;
}
