// Return a collection of common actions.
// Each action in the collection is a compound
// action. There is one compound action in the collection
// for each action which is common to all viewlets in the selection.
public Collection getCommonActions() {
Collection commonActions = new LinkedList();
Collection firstViewletsActions;
ViewletAction currentAction;
Iterator viewletsIterator;
Iterator firstViewletsActionsIterator;
Viewlet firstViewlet, currentViewlet;
List currentViewletActions;
boolean allContainAction;
if (isEmpty()) {
return (Collections.EMPTY_SET);
}
firstViewlet = (Viewlet) (iterator().next());
firstViewletsActions = firstViewlet.getActions();
firstViewletsActionsIterator = firstViewletsActions.iterator();
// for each currentAction in the first viewlet's actions
while (firstViewletsActionsIterator.hasNext()) {
currentAction = (ViewletAction) firstViewletsActionsIterator.next();
viewletsIterator = iterator();
allContainAction = true;
// test whether each viewlet has an action equals() to currentAction
while (viewletsIterator.hasNext() && allContainAction) {
currentViewlet = (Viewlet) viewletsIterator.next();
if (!currentViewlet.getActions().contains(currentAction)) {
allContainAction = false;
}
}
if (allContainAction) {
commonActions.add(currentAction.createCompoundAction(this));
}
}
return (commonActions);
}
protected void loadAirspacesFromPath(String path, Collection<Airspace> airspaces) {
File file = ExampleUtil.saveResourceToTempFile(path, ".zip");
if (file == null) return;
try {
ZipFile zipFile = new ZipFile(file);
ZipEntry entry = null;
for (Enumeration<? extends ZipEntry> e = zipFile.entries();
e.hasMoreElements();
entry = e.nextElement()) {
if (entry == null) continue;
String name = WWIO.getFilename(entry.getName());
if (!(name.startsWith("gov.nasa.worldwind.render.airspaces") && name.endsWith(".xml")))
continue;
String[] tokens = name.split("-");
try {
Class c = Class.forName(tokens[0]);
Airspace airspace = (Airspace) c.newInstance();
BufferedReader input =
new BufferedReader(new InputStreamReader(zipFile.getInputStream(entry)));
String s = input.readLine();
airspace.restoreState(s);
airspaces.add(airspace);
if (tokens.length >= 2) {
airspace.setValue(AVKey.DISPLAY_NAME, tokens[1]);
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
} catch (IOException e) {
e.printStackTrace();
}
}