/**
* Recursively find the menu item for a menu shortcut
*
* @param ms - the shortcut
* @return the menu item; or null if the item is not available for this shortcut
*/
MenuItem getShortcutMenuItemImpl(MenuShortcut ms) {
if (ms == null) {
return null;
}
for (int i = 0; i < getItemCount(); i++) {
MenuItem mi = getItem(i);
if (mi instanceof Menu) {
mi = ((Menu) mi).getShortcutMenuItemImpl(ms);
if (mi != null) {
return mi;
}
} else if (ms.equals(mi.getShortcut())) {
return mi;
}
}
return null;
}
/**
* Change the selected item to the next one in the requested direction moving cyclically, skipping
* separators
*
* @param forward - the direction to move the selection
* @param showSubMenu - if new selected item has a sub-menu, should that sub-menu be displayed
*/
void selectNextItem(boolean forward, boolean showSubMenu) {
int selected = getSelectedItemIndex();
int count = getItemCount();
if (count == 0) {
return;
}
if (selected < 0) {
selected = (forward ? count - 1 : 0);
}
int i = selected;
do {
i = (forward ? (i + 1) : (i + count - 1)) % count;
i %= count;
MenuItem item = getItem(i);
if (!"-".equals(item.getLabel())) { // $NON-NLS-1$
selectItem(i, showSubMenu);
return;
}
} while (i != selected);
}
/**
* Post the ActionEvent or ItemEvent, depending on type of the menu item.
*
* @param item - the index of menu item
* @param when - event time
* @param modifiers - input event modifiers
*/
void fireItemAction(int item, long when, int modifiers) {
MenuItem mi = getItem(item);
mi.itemSelected(when, modifiers);
}